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DEc. 8, 186.S.<br />
THE ENGINEER.<br />
365<br />
Da& .Beut~~&trn<br />
IJTEBATURE.<br />
in Outtrrtich. Eine ZIUa.mf'M111uUu11fJ der i n<br />
. Manz.<br />
LTlllRD NOTICE.]<br />
Al'T'ER Olll' close examination of the Swedish accounts of<br />
the progress of the Bessemer process in that country, we<br />
will now more particularly direct attention to the progress<br />
of the Besaemer process in Austria, as related by the authors<br />
of the important papers before us. AB one of them truly<br />
obeervea :- " Anstria is well known to be amongst those<br />
''countries bountitully provided by nature with pure ores,<br />
"out of which pig can be produced of that quality and<br />
"purity required in working by the Bessemer process."<br />
The condition of the iron manufactures have in fact been<br />
for centuries in Styria and Carinthia very similar to those<br />
in Sweden. 'Vith similarly pure, or even purer ores, the<br />
lack of fuel has long been felt in Austria, as in Sweden<br />
:Bessemeriaing, at any rate, in its present stage, is thns an'<br />
enormous benefit to those countries.<br />
It is a happy circumstance that the Germans and Swedes<br />
are not so reticent as others with respect to the p ublication<br />
of facts about this new metallurgical process. In the present<br />
state of the manufacture most of the great producers keep<br />
their modes of working as secret as it lB practically possible.<br />
This is notoriously the case with Krupp of Essen, and<br />
also, to an almost equal extent, with MM. P etin, Gaudet,<br />
et Cie. I t is thus interesting to read the statement of an<br />
eye-witness, a RU6Sian engineer, who doubtless obtained a<br />
view of MM. Petin and Gaudet's works from the fact of<br />
hie bringing some large order, that so long ago as almost<br />
eighteen months be witnessed the stem, weighing some<br />
6 tons, of an iron-clad being cast in Bessemer metal.<br />
It also appears that the proportion of carbon in the steel is<br />
being t~e re determined by the help ofthe spectrum analysis.<br />
In RnssUt. the Bessemer process has been some time in action<br />
at Votkinsk, in the government of Orenburg, and it is in<br />
contemplation to erect other works of the kind. The first<br />
Austrian proprietor of iron-works who had sufficient<br />
enterprise to take up the Bessemer business, was Prince<br />
::ichwartzenberg, at his works at Turracb, in Styria. The<br />
first trials were carried out under the direction of Professor<br />
Tunner, of Leo ben, whose father was in former times<br />
the manager of this same Turrach establishment. The converter<br />
was on the English movable plan, being constructed<br />
exactly according to the drawings published by Professor<br />
'funner in his report on the Great Exhibition of 1862.<br />
The blowing engine was driven by a Jonval turbine of<br />
H O· horse power ; the charge of pig being 25 centners.<br />
'fhe pig was at first melted in a charcoal cupoia, but afterwards<br />
simply directly tapped from the blast furnace, " so<br />
" that in fact no fuel was used except that required for the<br />
" preparatory warming of the furnace." The duration of the<br />
blowings in was from twelve to eighteen minutes. The<br />
waste, after the attendants bad acquired some experience,<br />
diminished from 12 to 15 per cent. The slag produced was<br />
not in the leaat like the rich blast flll'nace slags, or such a.s<br />
are formed in finery hearths. They were, on the contrary,<br />
atony, green slags, poor in iron, with an almost crystalline<br />
structure. Both steel and iron were produced. " The iron<br />
" showed itself more fluid than the steel, but it also cooled<br />
" down all the sooner." As regards the quality of the<br />
steel, little was left to be desired. It could be applied to<br />
almost all kinds of cutting instruments, but u for scythes it<br />
" showed itself rather too bard, as they cracked in the<br />
" working." The quality of the bar iron was not so good.<br />
It was red-hot when being tested, as wrought iron is well<br />
known to be much more susceptible than steel to any<br />
sulphur. "It must be remarked that the Turrach pig does<br />
" not belong to the purest Styrian metal, and that, at the<br />
"time of the experiments the blast furnace was working in<br />
41 such a way that it gave almost white iron, which is well<br />
u known to be not particularly suited for the Bessemer<br />
" process."<br />
The second firm in Austria which under took the Bessemer<br />
process is that of the "Rauscher Company" at Heft, in<br />
C&rinthia. The history of the work done there is more<br />
especially interesting and important as, according to the<br />
advice of Professor Tanner, both the Swedish and English<br />
methods-that is both the fixed furnace and the movable<br />
converter-were employed. The fi rst blowing in took<br />
place on the 4th of June, 1864, with a charge of25 centners<br />
of gray pig. The duration of the operation was eighteen<br />
minutea Jrom the moment the metal was run in to the<br />
instant it was completely tapped out. Before this was<br />
done 30 lb. of liquid gray pig was run into the converter.<br />
The blowing engine, driven by means of a turbine,<br />
worked with a pressure of from 10! lb. down to 8 lb., 9 lb.,<br />
and even 3~ lb. per square inch. 'fhe finished metal ran<br />
Tery easily into the moulds, and, after weighing, the products<br />
gave 1843lb. of very good steel in casting; the crop<br />
(half pig, half steel) consisted of 129 lb., while 36 lb. lay<br />
on Ule g round. or the 2,530 lb. of pig, 522 lb. vrere thus<br />
lost, or about 25 per cent. of the 2,008lb. obtained.<br />
The most important and circumstantial account of the<br />
proceedings at lieft are given by Herr Friedrich Miinichsdorfer,<br />
in a work dated the 4th of <strong>December</strong>, 1 64,<br />
contributed to this year's B erg und Huttenmanni~ell8<br />
Zeitung. This gentleman is the managcr of the H eft ironworks,<br />
so that he has had full opportunities for noting the<br />
different facts with respect to the employment of the<br />
Bessemer process in Cannthia. In the short introductory<br />
history which he gives of the deTelopment of the process,<br />
he observes, with regard to its career in Sweden, that to<br />
the perseverance displayed in that country is due the fact<br />
"that this moat important metallurgical process has been<br />
"saved and developed." This opinion we consider to be<br />
at the least exaggerated, as it leaves out of account 1\lr.<br />
:Bessemer's own strenuous exertions in England. After<br />
describing at some length the different arrangements for<br />
emelting the pig, H err Miinicbsdor{er enters into the<br />
detaila of the special apparatus for" bessemerising" proper.<br />
The blowing apparatus for giving a blast of a pressure of<br />
from one to one and a-half atmospheres, consists of a blowing<br />
engine, consuming from 120 to 180 horses'power. This power<br />
is obtained by concentrating in a reservoir the extra water<br />
which is not used in the turbine driving the blowing apparatus<br />
for the blast flll'naces. It was found that an extra<br />
quantity of water, amounting to five cubic feet per second,<br />
could be utilised beyond that used for keeping the blast<br />
furnace going. This extra quantity is led into a reservoir<br />
of a capacity of 152,000 cubic feet. With the ase of from<br />
twebty-seven to forty cubic feet of water per second-the<br />
storing reservoir being fed at the rate of five cubic feetand<br />
taking an average duration of the blowing in of<br />
eighteen minutes, from ten to fifteen blowings in could be<br />
carried O'lt in twenty-four hours. As, however, according<br />
to experience, about half the amount of blast required in<br />
blowtng-in has to be previously employed tin warming the<br />
furnaces, there remained from six to ten blowings-in "per<br />
" working day of twenty-four hours.'' This water is thus<br />
conducted to a J onval turbine of 140-horse power, driving a<br />
blowing engine, which is stated to be according to the<br />
patent of Messrs. Leyser and Stiehler, of Vienna, bu t which<br />
appears to be on the same plan as the engines constructed<br />
in England according to Mr. Bessemer's patents. The blast<br />
reaches a regulator, made of boiler plate, and containing<br />
600 cubic feet. It is provided with a safety valve, and<br />
with a 12in. pipe, 120ft. long, leading to the Bessemer<br />
converters. The Bessemer converting workshops are<br />
placed just in front of the blast furnaces, 8~ft . below the<br />
level of the ground, and covering a surface of 1,152 square<br />
feet. It was at first intended to set up two converters on<br />
the'.' English plan." Professor Tanner, however, happened<br />
to direct Herr M unichsdorfer's attention to M. Boman's<br />
now well-known treatise on the Bessemer process in<br />
Sweden, while it was yet in manuscript, and in his bands.<br />
" The practical descriptions contained in Boman's account<br />
" determined the Rauscher Company to alter their original<br />
" plan, and to erect a Swedish furnace near the English con<br />
" verter.'' This and other circumstances contributed to somewhat<br />
delay the starting of the works. The blowing engine is<br />
greatly praised. " With an area for the blast of 3·5 square<br />
" inches, and making from eighty to eighty-five double<br />
" strokes per minute, the blast blowing into the atmo<br />
" sphere, a pressure of 15 (Austrian) lb., = 1·25 atmo<br />
" spheres" was obtained in the preliminary trials. About<br />
three-fourths of the water-power was employed to produce<br />
this effect. The engine is made with a horizontal cylinder<br />
2ft. in diameter, and with a stroke of 2ft. It appeo.rs that<br />
no repairs have been required after some 196 blowings in,<br />
and it only happened that one of the india-rubber rings had<br />
to be changed after the llOth operation. As a proof that<br />
the air regulator was of the requisite size, the pressure<br />
gauge does not vibrate by even one forty-eighth of an inch.<br />
Immediately, however, after the blast is let on, the air gets<br />
heated to an amount, which, according to experiments<br />
which were conducted, rises with 90 half strokes per minute,<br />
and during a blowing-in of twenty minutes, to 77 deg. centigrade<br />
at the end of the experiment. At the end of the<br />
air ~ipe the ~ermometer nevertheless showed only 15 deg.<br />
centigrade, With an external temperature of 8 deg. centigrade.<br />
Further on we read that the blast for the English converter<br />
is taken through clay tuyeres at the bottom, and that<br />
each of these has several openings from four-twelfths to sixtwelfths<br />
of an inch in diameter. The blast passes through<br />
forty-two openings like this, the total area amounting to 3·5<br />
square inches. The outside is of boiler plate, lined with a fireproof<br />
composition 6in. thick. It appears that the manufacture<br />
of the clay tuyeres was attended with great difficulties;<br />
"they have to be well stamped, pressed, and carefully<br />
burnt, or else they get lifted off by the high pressure of<br />
the blast." The first were procured from the Imperial<br />
Porcelain manufactory at Vienna, nod they only lasted from<br />
eight to ten blowings in. Those made at Heft consiat of<br />
one-half quartz and one-half fire-clay from Blaosko. The<br />
composition lining the converter consists of two-thirds<br />
quartz and one-third of Blansko clay. "The Swedish<br />
furnace is in two parts, the bottom part with the blast<br />
casing of cast iron, through which the tuyeres are inserted,<br />
and the removable top-tliat is a cylinder of plate lined and<br />
covered over with fire-bricks. I t is in fact the same as<br />
that described and illustrated in Boman's work. The<br />
bricks and tuyeres made at Heft contain from threefourths<br />
to one-half of quartz, and from one-quarter to onehalf<br />
fire clay. They are compressed in cast iron moulds,<br />
and are well burnt. Before actually working the furnaces,<br />
&c., the men were well drilled for some time to go through<br />
the different operations with the furnaces empty and colda<br />
good plan for adoption with a p ersonnel as yet practically<br />
unacquainted with the processes. The English converter<br />
was tirst tried in September, 1864.<br />
In using the Swedish furnace it is first heated with<br />
charcoal, a blast of air of from ~ lb. to i lb. pressure<br />
being let in for about half an hour to gently fan<br />
the flame. The charge of iron, of from 25 to 30 centners,<br />
is then tapped from the blast furnace into a ladle smeared<br />
with clay and previously heated. Any slag is skimmed o1f,<br />
and the ladle is lifted up by the crane, and its contents are<br />
t urned over into the funnel of the furnace. " The blast is<br />
in the meantime let on to about 8 lb. or 9 lb. pressure, in<br />
order to blow out any charcoal which may happen to be in<br />
the furnace. When the ladle has the correct position over<br />
the funnel a simple lever arrangement lifts up the plug at<br />
the bottom,:and the pig flows in in one or two minutes through<br />
the funnel into the furnace. At the beginning of t he<br />
blowing in the blast is taken at 5lb., and generally rises<br />
during the operation, so that at last the normal pre sure of<br />
from 9 lb. to 10 lb. is attained. The opening of the funnel<br />
is then stopped up with a clay plug, sand is placed upon<br />
it, and a cast iron plate is laid over all."<br />
" Already during the running in, (says llerr Mt1nicbsdorfer) the<br />
ftame, of a conical form, streams out of the furnace throat, showing<br />
a dirty yellow colour, and, at the top edge of the cone, a long cometr<br />
hke tail of sparks. 1'he individual sparks are bright, long, and<br />
narrow, and not uncommonly separate at the Curtheat up of<br />
the flame, in the shape of forks. A. ebort time afterwardsaccording<br />
to the quality of pig employed, from one-baH to<br />
four minott>s- tbe llame of the cone geta brighter, and &ometimes<br />
changes from yellow to a pale reddiBh tinge. At the edges it<br />
is of a dirty whita colour, with a darlc:cone In the middle, and violet<br />
streaks are often noticeable at the edges, and iu. the ftame it.elf.<br />
Theee phenomena al.o Jut only from one to four minute., the violet<br />
stripee disappear, the ftame gele to be of a pale yeJJow, more<br />
intense, denser and stronger, it considerably brighteu ; iL rtrikee the<br />
opposite wall of the hlliJding, which is covered with cut iron plate.,<br />
at the same time separating into rays. Up to the ap~noe of thi4<br />
phenomenon {the forerunner of the boiling period) there elapees,<br />
according. to the quality of the pig, and under ordinary circumstances,<br />
from two to sixteen minutes. This first stage (up to the<br />
beginning of the bilin(r) is termed the " elag forming period"<br />
(&hlo.ckenhildung• Ptritxk). The gauge rises, probably i.n ooueaeqoeoce<br />
of the clogging up of &ome of the tuyeree, to 11-a lb., and<br />
rather higher with gray than white iron. At the beginning of the<br />
boiling it sinka, however, llb. or 2 lb. With very gray (Wergnzu)<br />
pig, containing muoh unoombined carbon, the tuyere1 get oon.aiderably<br />
overlaid ; the fi&me entirely draws back into.the throat, is<br />
inactive, gives out murmura, and produoee few but lirong aparb.<br />
In consequence of thia etopping up of the tuyeree the Jinrt etage<br />
neceeearily lAsts very long; while, on the other hand, the boiling<br />
etage lAsts only 5- 8 minutes."<br />
Herr Mtinichsdorfer says that in one instance of the conversion<br />
of very gray pig, with which the tuyeres got<br />
stopped up after five minutes, lasted forty minutes; after<br />
forty-five minotes the flame again brightened up, showing<br />
sparks and violet stripes. The slag-forming period lasted<br />
thirty minutes, the gauge rising to 16 lb.<br />
Under ordinary cucumstances the flame at tbi.a period<br />
gets more and more violet and intense, often unquietly<br />
flickering:-<br />
"The tail of sparks at the top edge of the flame is kept up, but ia no<br />
longer &o dense; the separate splll'ka are aborter, narrower, anti<br />
dimmer ; at last separate yellow balls of elag, aooompanied with<br />
bright star-shaped iron sparks, leap out of the fomace in arched<br />
streams. In the furuaoe itself is beard a noise with distinct detonations,<br />
till the first atonny jet of slag, containing bot little iron, and<br />
accompanied with a dense brown illloke, ta.kea place. Wben the<br />
foruace works bot these jets are quickly and strongly repeated, and<br />
there ia &ometimea more, &ometimes less, slag projected out of the<br />
foruace throat. When cold this slag is light green, bottle green and<br />
ble.ok, very porous, and contains many smaJI iron nodulee. As soon<br />
as the Jiret projection takes place, the pressure of the bleat is<br />
diminished. During the boiling period, the furuace ia worked<br />
under a preasure of 7 lb. to 8 lb., in order to prevent the too<br />
violent boiling and powerful projections of the matter, with the<br />
consequent waste.. With each jet, which is always preceded by an<br />
iocreued noise in the furnace, the blast is lowered, for the same<br />
reasons, down to 41b. to 4! lb. This operation takes place by means<br />
of a regulating cook, placed at a suitable part of the bleat pipe, and<br />
which can be so turued that a portion of the blast ftowe through an<br />
adjustable exbausL valve, which, however, never leta the preeaure<br />
fall below 4llb. When the projection of slag bu oeued, the regu·<br />
lating valve is closed, and the gauge again riael to 7 lb. or 8 lb.<br />
The ft.ame always remains clear and bright during the boiling period.<br />
bot from one to four minutes alter ito commencement it geta brighter<br />
and more whitish, at tbe edge of the cone, and from o ntH~oarter to<br />
one-ball of its length, showing separate light blue stripes, which are<br />
even &ometimee quite of a light blue tinge. Tbia ia tbe sign of the<br />
commencement of the refining. The phenomenon takes place<br />
sometimes earlier, &ometimes later, and the length of tbh tinge<br />
increases towarda the end of the boiling period. At intervala portions<br />
of iron and slag are thrown bundle-like against the waH of<br />
the building, spirting out thousands of oonlcal and atar-ehaped<br />
&parka. The interval of time between theae violent jet.~ gradually<br />
increases; they at lut entirely cease, the flame geta gradually<br />
quieter, fal ls somewhat down, getting aborter, broader, ud more<br />
transparent, with a dirty white, mingled with ligbt 1<br />
blue tiuge.<br />
This appearance is the fining stage proper, though Ule decarbonisation<br />
also ta.kes place in tbe bomng, and we work during this period<br />
with from 7 lb. to 10 lb. pre>eure."<br />
The boiling period lasts, according to circumstances and<br />
the quality of the pig, from four to sixteen minutes. If<br />
the metaf were tapped at the beginning of the fining<br />
stage, and thus at the appearance of these flame phenomena,<br />
only pig would still be obtained. Our author further observes<br />
that decarbonisation proceeds rapidly at this period.<br />
The peculiar tinge of the flame, the duration and amount<br />
of the pressure, are the most important points for determining<br />
the ending of the process. To always get steel of<br />
11<br />
about equalhardnessrequires exact observation and practice."<br />
The appearances in the flame are at present the main<br />
guides everywhere for determining when the blowing-in<br />
shall be stopped, and the metal tapped; and it is for these<br />
reasons that we have given in full the phenomena presented<br />
in the Carinthian converters.<br />
Herr Muuichsdorfer goes on to say that at Hef't a short<br />
time sufficed to make either bard or soft steel aa required.<br />
The fining stage lasts, according to the hardness<br />
of the steel, from one to four minutes. With very gray<br />
pig, however, the Bame remains, from the beginning of the<br />
boiling period to the end of the process, bright and without<br />
bein~ tinged with blue, so that the determination of the<br />
primmg stage is then uncommonly difficult, as the transition<br />
from the boiling stage takes place almost without any<br />
marked signs.<br />
" In making steal in the Swedish furnace the produoe~pedinlo<br />
a ladle underueath. The tap-hole, of 16in. area, is cl with a<br />
1-jn. thick fire-brick, upon which is inserted a cut iron .topper made<br />
wath a lug and smeared with clay. AJJ soon u the signal is given<br />
for tapping, this stopper is knocked cut, the brick ia po.sbed in, and<br />
the steel Bows into the b.dle. 1n order to prevent the formation of<br />
scale this ladle is previously made red bot, one per cent. of the<br />
charge of liquid pig having been previo118Jy run into it from the<br />
blast furnace ; this ia done in order to prevent the forma \ion of<br />
porous ingots, or oT oold-short steel.<br />
The filled ladle is lilled by tbe crane and brought over the moulds<br />
and there emptied. Tbeae cast--iron moulda have been previously<br />
smeared with plumbago and well warmed. The steel flows out<br />
through a hole in tbe bottom of the ladle, which can be opened and<br />
~but by a lever. The mould gets gradually filled up to within a few<br />
anchee of the edge by •he action of the crane, and it is covered over<br />
by means of a caat.-irou plate smeared with plumbago, which is<br />
keyed to the moulds by means of its lugs, in order to prevent the<br />
riatng ud boiJing out or the steel. At the beginning we bad moulda<br />
to act on a turut.able, the ladle itself being fixed. '.l'be moulda were<br />
brought one after another under the bottom opening of the ladle.<br />
Bot this anangement baa shown itself to be slow, aud we intend to<br />
set up a more complete O&llling apparatus when the worke get enlarged.<br />
When the furnace is em pliEd a gentle blut uf from a lb.<br />
to 4lb. preEsure is let on, in order to keep the tuyeree from mpping<br />
up. The cover of the blast casing is then quickly taken off, t.be<br />
1uyeres cleaned ~nd examined as to their length ; if they have<br />
burnt down to 3tn. they must be changed. The steel ingo" are<br />
then allowed to cool, and the moulds liflA!d off by the crane. At<br />
Heft we produced ingots of from 6in. to 12i.u. square, 86in. to t Oin.<br />
high, and weighing from 2 to 12 centners.<br />
The castin~ of the eteel through the.bc?ttom ia unavoidable, in<br />
order to get 10gots free from slag ; but 1t u difficult if the steel be<br />
not very lluid,u the opening in the bottotn otherwise geta &topped vp.<br />
. T.be. method of p r~ing with the English furnace or oonvert.er<br />
IS stmtlar. The retort Ill cleared of the charcoal after having bet!n<br />
woq warmed by being turned over; it ia then laid horizontally, t.be<br />
•
366<br />
T HE ENG IN EER.<br />
DEC. 8, <strong>1865</strong>.<br />
•<br />
pig it poured in at the throat, whereupon lbe blast is let on, and<br />
the retort turned back.<br />
At the end of tbe proceqs it ia again brought back horizontally,<br />
the blast is 6topped, and the metal poured out at the throat into tbe<br />
ladle. A gentle bla t is again let on for the reasons given above,<br />
tbe bottom cover of the bla ~ t casing is lifted off, the toyeres cleaned,<br />
and examined as to their length.<br />
Tbe appearances of tbe fhme are tbo same in the English converter<br />
as in tbe Swedish furnaoe, only still more intense. The<br />
procees itseH is much more violent, p·uticularly during the boiling<br />
period, the eruptions are extremely forcible, and a violent drummiug<br />
sort of noise is heard. The blast la let ou at 12 lb., and rises to 16 lb.<br />
pres.!lure dlll'iog tbe stage when the elag is being formed. We work<br />
through the boiling period with 9 lb., and recede during the eruptions<br />
tO o lb. The blast presses with from Sib. to 10llb. during<br />
the fining stage. No flameatallatroams out of the throat during the<br />
period when the sla~ is being formed, bot only sparks. The flame<br />
only begins with the beginning of tbe boiling, during which it is<br />
often intensely blue for a short time.<br />
The phenomena of flame previously described are of the usual<br />
kind; but these appe~Araooss differ ocoa~io nally, as to their intensity,<br />
according to the klod of pig, the degree of beating given to the<br />
furnace, the ~~; ree.ter melting down of the furnace sides, the presence<br />
of moro or less slag in the furnaoe from the previous charges- the<br />
process being accordingly aborter or longer.<br />
The column of iron is 14in. high in the English converter with a<br />
charge of 30 centnere, and alx>ut Sin. in the Swedish furnace.<br />
It is unfortunate that no exact comparison can b e made<br />
here as to the relative advantages of the two plans, as the<br />
movable converter itself had to be stopped after twenty-four<br />
blowings in, from a want of tuyeres. H e, however, seems<br />
t o prefer tbe Swedish furnace. "For inferior kinds of pig,<br />
" such as those in England, where complete decarbonisation<br />
11<br />
takes place, pure iron being afterward added to produce<br />
11<br />
the car bonisation; the movable retorts are probably pre-<br />
11 ferable to the Swedish."<br />
The cost of taking out the metal seems to be rather less with<br />
the English furnace. The first cost is higher, bat the English<br />
converter bas the advantage that. io the case of any accident, the<br />
process can be at once stopped. With the Swedish flll'nace, on the<br />
contrary, there is tbe danger that tbe tuyeres and blast casing may<br />
get stopped up. The m
•<br />
DEc. 8, <strong>1865</strong>.<br />
THE ENGINEER.<br />
367 -<br />
THE SPITHEAD FORTS.<br />
principally t>mployed on the Bombay and Suez length are the<br />
Carnatic, 1,776 ton~>, 400-horee power ; the Benare3 1<br />
1,491 tons, 4.'10-<br />
hor•o pow 11 r ; the Rangoon, 1,776 t one, 400-horse power; anrl the Evu einoo tbe great development of ritl~d artillery, forts, ~hip~,<br />
Malta, 1 942 tone, 50tJ-boree power. The Calcutta and the China and guns have been engaged in a aort of tnangular duel, wh1oh 18<br />
n 1 aild aro carried by other vessels, and they run in the same s!lip very far from baviog reached ita conclusion. While the defence of<br />
from Sut>z, but are paid for by the Government as separate services; Spithead was under di~ oussio n, the chief interest of. the coo~st<br />
thus over the lted Sea length double payment is received. The ex- centred in tho r ival claiLOs of standing forte and tloahng battenes<br />
pauses, however, are not doubled, the oxtra mail being simply a for the purpose of harbour defeoc ~ s; but since the deoi_sion. was<br />
q uestion of apace and the increased cost of loading and unloading. taken to protect our chief n&Val ars('nals by a ay&tem of forllfioallons,<br />
It is the sl\me with the Calcutta and Australian maw. the~e ha.s heen comparatively little done to test the strength of<br />
The Timu of India has column alter column, and letter after masonry, and almost all the experiments of the Government h ave<br />
letkr, about the delay in the trsulsmission of the mails, and the been directed to ascertainiJ.g the relt.tive power of our best guns .and<br />
t ime and money that, it states, might be saved by landing them at our etl'ongest armour. T he result ba'l been, up to the present tmae,<br />
Bombay, sending t hem through t he interior of the country to the a pparently in favour of the attack. With not more than one excepeastern<br />
coast of India, then shipping them at Madra.s for China aud tion, all our iron-clads are vulnerable unde~ t he fire ?f ~welve-ton<br />
Australia-tbe route of the packets to the latter places being via guns like those carried by the Roya~ Sovereagn, and 1t as not ~et<br />
Singapore and T orres Straits to Sidney and Melbourne. As certain that the great 600-pounder wall not be able to cope even watb<br />
re~tards India itself tbis plan, suggested by the Timu of Jn dia, is the ponderous sheathing of the Hercules.<br />
sure to be carried out- first, because Calculta and other towns on The opinion which seems now to prevail, that the guns have<br />
the eastern coast will receive letters four or five days earlier than beaten the ships, seems, nevertheless, to be highly questionable. Tue<br />
by the eea route, and, secondly, because, ae they are now clt.rried at long-continued experiments at Sboeburyness have reduced some<br />
mileage rates, transit by rail from Bombay will be cheaper. Still points at leaat to something like scientific certainty. The broad<br />
time most elapse before the plan can be carried out, because t he results are, that the charge of powder f(!VIlS a pretty ~lose m~asure of<br />
m ilway system of central I ndia is not yet complete. and between the penetrating power of a gun, so that 1t can be pre~1cted w1tb t?ler<br />
Bombay and C1lcutta tl•ere is a gap in the railwey communication able precis1on bow much powder must be used to p1erce at a g•ven<br />
which it will take IOn. We ask why shots. and suffered no great inj ury beyond the snapping of several of<br />
should a sub.~1dy be patd at all for a maal contract between Gal!e the bolts. The battery was then turned upon tbe masonry, and,<br />
and Au ~_traha, when between Calcutta and tbat colony there IS though only cast iron shot. were need, t he first blow fairly split a<br />
a c~ rryang trade of a bout 1 ,81,92, 1 ~0 rupees; or why ~bonld a 1 huge mass of granite far in the rear of the point of impact. Still<br />
subsady be granted fo~ a Galle and Cbm~ lme, when lher~ IB a large l the ebot did not get through, though the ultimate fate of the structrude<br />
trom Bombay watb the Culcutt~, Smgapor~, a~d Cbana trad~, , tore might easily be foreseen. Two rounds from the four~gun<br />
amounung to. 8, 1 3,811, ~26 r upee~? :SD;ch a su~; ady ~s not needed. battery were then completed. Of the eight shots. one massed<br />
1<br />
Ooe fe~Ature •!l the Or1eo~al '_llaal servace a~m1ts of amprovement a t altogether; but the other seven struck tbe granite walls. Upon exonce!<br />
and that as the su~statutao~ of aomet~_ang greate.r tba'? a spt_ed al!lination it was found that a great part of the casemate was a heap<br />
of. nao~ knots an hour an t he hed Sea. lhe Atlant_a~ m~ils1: rv ace of r uins, and that one of the ebots bad forced a clear passage into<br />
be10g ammedtately under t he eye of the home autbora tJes IS alltbat 1 t he interior of the work. The conclusion is that seven well<br />
C3n be desir~, yet what a contrast tb!.s ser vice presents to that in the 1 directed shots, from a ran~te of 1,000 yards, will suffice to<br />
Hed Sea, as aostanced by the followm_g let~r from a passenger on annihilate the projected Spitbead F orts, and that all t he labour<br />
board the Rangoon, carryaog the malls wbacb left Bombay on the and money bestowed upon the works will hllve been thrown<br />
24tb of August last-it is dated "S.S. ltangoon, near Aden,<br />
away unless some better material tblin granite can be found<br />
September 7~h ':- for tb 1 eir construction. Fortunately this material is not far to seek.<br />
''1'bo "teamer wu detained tweoty-rour houra In sta r tin~r. . . . Tho A covering of armour similar to tu at of the .Hercules will etaod<br />
engines h&d uodef~:ono tborougb ro1Jalr, and it wa~ con8dentiy expected a good deal of pounding from the h eaviest guns that have yet been<br />
tba~ thu titcamur would proceed at such a rate th&~ the •h~y's delay would . . . . . .<br />
be moro tban made up. . . . w e have alre&dy been more tban thirteen traed aga1nst 1t, and a moderate •!'crease 10 the quantaty of n on<br />
day ~ on the voya~:o, and are not at Aden yet. . . . We have b&d 8no would make the forts absolutely Impenetrable, not only by the<br />
wel.ltb r, with 6carccly any r..in, ever since leaving Bombay, and have beav1est known guns, but even by ordnance such as the wildest en·<br />
scarcely shipped a sea tbe whole tl.mo; but with this lo the steamer'• tbusiast ba.s not yet dreamed of as possible. There is nothing thus<br />
tuour. 8ho bu not average~ jlr;e koo L8 an hour during t he voyage. f'or far very discouraging, but the vast cost of an Iron fort does seem at<br />
the I ut three days, In Bddauon. to our other mlsrortunea, the vessel bas run first e'gbt rather alarming It is sa ad however that the saving of<br />
abort of coal, and the hu at tLIDea been golol( oo more than two lmols ao<br />
1<br />
• • .' • • ' •<br />
bour In ~ rnootb water, while t he greate.at run the last four day• has 00~ ex- space wb1cb w1ll be elfect~~ by eubnatut1ng aron for _stone Wll~ ~o<br />
cecded 112 m ilea. • • . We have beeu In algb~ of Aden rortome houn; some way towards equaiiBmg the cost of construCtion, and 1t 13<br />
i~ la oow four o'cloek, and we do not appeu to have made aoy appreciable obvious that a small fort which will stand tire is preferable to a<br />
pro.,ro.:os during the ltLSt three boor•; but wo are assured that we shall be larger fortress of granite doomed to fall to pieces at t he first broadat<br />
anchor by dark." . . side from an enemy's ship. I t does not appear that any experiment<br />
fn En~la~d it is sca..rcelr poss i ~ le to conceave t~at t he above IS bas y et been tried with a combination of ma,onry and ir?n, but the<br />
the descnptaon of ~n EngiiBh m~tl packet, belon~mg! moreover, to fate of the Sboeburyness casemates is not ve~y encourag1og to such<br />
the c.,l;,brated I~e o1nsular and O!aental Steam Nav1gat10~ Company; a project. I t seems pretty clear that the grunate gave w~y! less fr?m<br />
also thut the saad company, duraog the year 1864, camed tbe Red tbe ddtructiun of its face than from the want of elast1caty, wb1cb<br />
S ea mails at an average speed of nine knots an hour. The defence made tbe whole mass crack and fall to pieces under tbe blows to<br />
malle by t he suppo~1ers of the company i11 t.bat _it will not pay to which it was subjected. An iron facing, unless backed by wood !lnd<br />
place large and sw1ft steamers on the Red ~ea line, because Gome- converted into armour strong enough to need no fu.rtber backaog,<br />
time the present packets do not. get. tbe1r full complement of would do very little to break the shock upon the inner ~all of ston~.<br />
pa..sengerd. As a rule, overcrowdang as the case; bot t be rates and there is scarcely room 10 doubt that the first e:a:perameot upon at<br />
cburged between B~mbay and Su~ not~riously_ decrease tb~ t raffic, has finally settled the fate of ~ ranite as.a material for a first-cia~ for t.<br />
and olten cause mtddle·Class resadents an I ndaa to rema1n there If it were certain that tbae cooclu.ston would be accepted wathout<br />
till tbey intend to permanently return to England, or are killed by reserve sod without delay, there would be nothing to cause alarm in<br />
sunstruke.<br />
the failure of this first design for our harbour fortresses, but it is<br />
In the meantime, while the improvement of the Red Sea passage, sometimes easier to demolisll the stoutest materials than to batter<br />
the formation of a port at Brindisi, and the completion of the Moot down a preconceived idea. It has in some quarters been so confidently<br />
Cenis tunnel, are gradually becom1ng matters of fact, Europea n assumed that granite forts would serve our turn at Portsmouth that<br />
ra•l ways, primarily constructed to meet local requirements, have t here is a little danger lest tbe crushing experiments at Sboeburycrept<br />
down oearly to tba shores of tbe Bospborus. and other local ness may fail in eradicating the idea. The slowness with which n<br />
lin~:s will soon be built through Asiatic Turkey. So obvious are the newly-ascer tained fact is acknowledged in the military and naval<br />
advantsge3 to be derived by the construction of t he other half of the administration of England has been proved so often, and sometimes<br />
ruilwny to India that, >ooner than many expect, we may see tlte with such disastrous consequencea,tbat it is impossible not to tremble<br />
g reat ude of commerce from Europe pouring into India by land, and when the results of scienu6c experiments accumulate too f11st for<br />
the moils for Australia, China, anti New Zeala!ld shipped. from the power of nssimilation of the official mind. Perhaps i.n this par<br />
MadrM. Aleppo, Bagdad, a nd I dp:ihttn wall be unated by the hoe, a t icular instance the faiJure of the proposed design has been too con·<br />
modern intr~de r into tbe ancient ci,tr of the 9~lipb!!, eod ~ disturb~ r spicuoos and too startling to be altogether without elfect. . I t is<br />
of the ~ l ~ep1e.1t ~1stnc.ts o~ sleepy 1 urkey. 1 be c~mpletJOD of. t ~~s scarcelr conceivable now that the defences of. Portsmout h w•ll be<br />
un~ertakm~. wb1ch "all g1ve aJso. such ~ powerCul _1mpulse ~o cav1li· actually built of a material so wo rtbl~s as gran!te has pr~ved to be:<br />
sauon, requues much less enterpnse Cor 1ts completaon than IS nece!- but it is quite possible that the cause of Iron v. Granate for the<br />
sary to construct the proposed Imperio I Hail way. defence of for ts may be as tediou~ as the case of Iron v. Wood wae in<br />
the construction of ships. I n aiJ these matters the rule seems to be to<br />
DELOJAN MauLLUBOY.- (From our Correspondent).-Tbere hae cling to an old prejudice until it is fairly batter ed to pieces, and we<br />
been .. good deal of talk in tbl' lhioaut or an luteuded fu sion of the only hope that the mornl resistance of the f!ranite theory may prove<br />
two elltablib!Jments of CouilleL and of Cbtitelineau. Both works as teeble as tbe physical resistance of tbe material itself.-.Sacurdoy<br />
form part of the syndicate of Belgian forgemaater1.<br />
ReoU!o.<br />
NOTES AND )1E~ORANDA.<br />
AN immenS& iron foundry, capable of turning ont 100,000 dols.<br />
worth of work, has been completed at Uooolulu.<br />
IN li87 t he number of watches sold in P aris is stated to have<br />
been 20 000 annually, of which one in twenty was of gold.<br />
T ne divisibility of copper is so great that a grai~ of it. dlsso!ved in<br />
an alkali will give & sensible colour to 500,000 tlmes 1ts we1ght in<br />
water.<br />
T B£ tenacity of cast copper is sufficient to support a weight of<br />
19,000 lb. to tbe squt.re inch, or rat her more than half as much u<br />
good cast iron.<br />
TaE new American tbree-cen_t pieces are co~posed o~ twenty-five<br />
per cent. copper, and twenty·&IX per cent. nickel, which mt.ke. a<br />
very hard alloy.<br />
Tu£ balance of trade in favour of England in 1854, t.ccordin« to<br />
records of authenticity, amounted to .£255,214 of the money of the<br />
period, or about .£690,000 in money of the present day.<br />
TilE ancient Greeks u sed a mixture of salt, n itre, and alum when<br />
melting their gold, by which substance the silver was also purifted.<br />
Jt is n ot improbable that lead was also added to promote the 1lu.x of<br />
tbe metals.<br />
EaBBl'ISBBG states that the bog-iron ore of which the B_erlin Iron<br />
castings are made bad its origin in living creatore:'- t.n•malculro,<br />
wbicll pre~erve their vitality even when immersed Ill the strongest<br />
muriatic acid.<br />
I T has r ecently been found that the u nct.oous clay, ove~l~iog the<br />
ironat
•<br />
368<br />
-<br />
CIVIL ENGINEERING AND )fECHANICS IN THE<br />
UNIVERSITY OF GLASGOW.<br />
TBB chair was instituted by the Queen in 1849, is in the gift of<br />
the Crown, and bu been occupied daring the pest ten years by<br />
Professor W. J. Macqaorn Rankine, O.E., LL.D., F.R.S.<br />
The regular cou.rae of lectures and examinations commences at the<br />
beginning of the winter sesaion, and lasts daring the whole of that<br />
session.<br />
The objects of study may be summed up briefly as follows:<br />
The stability of structures; the strength of materials; the principles<br />
of the action of machines ; prime movers, whether driven by<br />
animal strength, water, wind, or the mechanical action of beat (as<br />
the a team engine); the principles of hydraulics; the mathematical<br />
principles of surveying and levelling ; the engineering of earthwork,<br />
masonry, carpentry, structures in iron, roads, railways, bridges<br />
and viaducts, tunnels, caul&, works of drainage and water supply,<br />
river works, ha.rbour works, and sea-eoast works.<br />
The University library iB well supplied with works on engineering<br />
science.<br />
The engineering school of the University of Glasgow is approved<br />
by the Secretary of State for India in Council, as one in which<br />
attendance for two years would qualify t. student, who bad fulfilled<br />
tbe other required conditions, to compete for admission to the<br />
engineer establishment in India .<br />
Certificate of Proficiency in E"gineering Sc~nce.<br />
1. A coarse of &tudy aud examination in &lgimering SSion :-<br />
NOTES AS TO INSTRUCTION lN ENGINEERING SCIENCE, DRAWN<br />
UP FOR THE INFORHATION OF STUDENTS.<br />
1.-PRKLDUN.LRY EDUOATION.<br />
Of the ordinary branches of elementary education arithmetic is of<br />
special importance to the student of engineering, and be ought to be<br />
familiar in particlll&r with the most rapid ways of performing calculations<br />
consistently with accuracy.<br />
It is desirable that he should be well instructed in engineering<br />
and mechanical drawing, as part of his prelilDinary education, but<br />
he may, if D&C66Sary, obtain that instruction du.rin' the intervals of<br />
a University course.<br />
l t is also desirable, if pouible, that the elementary parte of mathematics,<br />
auch as plane geometry, plane trigonometry, aud algebra, as<br />
far as quadratic equations, should form part of his preliminary edncation,<br />
as thereby time and labour will be saved during biB<br />
University course.<br />
2.-UNJVEMITY CouRSE.<br />
The course of study and examination adopted bytbe University of<br />
Glasgow is described in the Glasgow U niversity" Calendar," which<br />
may bo had from the Registrar, Glasgow College, prioe 1s.<br />
ln drawing up tbat course Lbe University have had in view to<br />
avoid altogether any competition with the offices of civil engineers,<br />
or the workS hope of mechanical engineers, or any interference with<br />
tbe usual practice of pupilage or apprenticeship; and they bave<br />
accordingly adopted a Sylitem which IB capable of working in harmony<br />
with tbat of pup1lage or apprenticeship, by supplying the<br />
btudent. with that scienufic knowledge which be cannot well acquire<br />
in an office or workshop, and avoidiug any pretension to give him<br />
that skill in the conduct of actual businees wbicb iB to be gained by<br />
practice alono.<br />
•<br />
'l' Le University course may be gone through either before, during,<br />
or after the term of pnpilage or apprenticeship, according to convenience.<br />
An arrangement which is sometimes found to answer well<br />
i.s to devote the w1nter to academic study, and the summer to the<br />
practice of engineering. A 6ludent who is not a candidate for a<br />
~e rt ificate in engineenng ecience may attend as few or as many<br />
classes as be thinks lit.<br />
PuoTOO&APDS or TII1l DOWLAJS lRoNwonK.S.- We have received a<br />
set of nine excellent photographs of the famous Dowlais Ironworke,<br />
executed by Mr. James Andrews, of Swansea. The subject ia interesting,<br />
p1cturesque points of view have been selected, aud on the<br />
whole these pbotograplu display more artistic feeling than is usual<br />
in pictures ot the kind. They are very creditable to Mr. Andrews'<br />
&kill, and wortb the attention of those who like photographs.<br />
Sunnnn.L'UlAN WoaK.B JN PAaJB.-(From our Corrupondent).<br />
Among tbe great public works undertaken and pun;ued by Lhe<br />
munic1pal cutborities of Paris, tbe subterranean canalisation of that<br />
capital occupies a foremost. place. In 1800 the subterranean canals<br />
of Paris pre;e11ted a total length of 16,386 metres. From 1800 to<br />
1831, 20,124. metres more were constructed, and from 1832 to 1839,<br />
50,1570 metres more. From 184.0 to 184.7 the progress made embraced<br />
27,80i wetree, in 184.8 and 184!>, 6,925 metres; and from 1850 to<br />
1855, 21,738 metres. The progress a1noe made, year by year, has<br />
been as follows :-1856, 3,518 metres; 1867, 10,999 meues; 181>8,<br />
4,436 metres ; 185!>, 18,31!3 metres; 1860, 19 9-14 metres; 11!lil ,<br />
:W,ui!l metrea; 186.!, 30,057 metres; 1863, 30,682 metres; and 1b61,<br />
39,tl!7 metres. We have tbue a total Jeugtb of about 260 mllel!<br />
~ogheb.<br />
A WABNU.o.-In our impr~sion of 24.th ult. a paragraph appeared<br />
under tbUI beading, to the effect that Mr. W. Sketchley, an engineer<br />
o( Weymouth, bad been charged with defrauding a Mr. GUk.e, of<br />
Londoo, of a steam engine, value £230. The defendant was re·<br />
m•nded and ultimately committed for trial. On 'l'barsday ~[r.<br />
Sketobley was ind1cted at the Surrey Sessions, when Mr. Bibton, the<br />
coua•el, intimated to tbe Court that the prosecutor, .Mr. George<br />
vilks, who was a contractor for public works, living at Hampton<br />
W1ck, having made further inqninea, was perfectly satisfied of the<br />
defendant's integrity, and therefore should not !urther proceed in<br />
tbe matter. 'flu! chairman said be had ret.d the depoe1tions, and<br />
entirely concurred with tbe course adopted by the prosecution. He<br />
doubted whether any fraud was intended. j,'he learned gentleman<br />
then directed the jury to acquit tho prisoner, as no evidence was<br />
o«ered by the proeeoution. l'he prisoner was then releii.Sed from<br />
his bail, and lett the conrt witb bts friends.<br />
•<br />
-<br />
TH E ENGINEER. DEc. 8, <strong>1865</strong>.<br />
NEWTON'S MACHINERY FOR PRESSING AND CUTTING TOBACCO.<br />
FIC. 2<br />
FlC<br />
. 4 .<br />
T n object of tbia invention, patented by',Mr. A. V. Newton, is<br />
to construct a machine that will press tobacco preparatory to cutting<br />
i t, and then cut it up fit for use in an efficient and expeditious<br />
manner, it being found necessary to press the tobacco into a compact<br />
state before the cutting commences.<br />
It has been the practice heretofore to use two independent<br />
machines, one to press and the other to cot, but by the adoption of<br />
the present invention both operations can be efficiently performed<br />
by one machine.<br />
The invention also includes an improvement in the cotters for<br />
cutting tobacco. The cutting of tobaooo while in a state of compression,<br />
as it must be, bas heretofore presented a very serious<br />
difficulty. Tbo juice which is forced out of lbe tobacco by the<br />
pressure to wbicb it is subjected, and by the cutting action, accumulates<br />
on the face of the cutter to such an extant as to stop the<br />
cutting action until cleaned. Tbis tendency to accumulation iB due<br />
to the practice of forming that face ol the knife or cut ter which is<br />
towards the mass of tobacco flat., and in the plane of the cutting<br />
edge, fliving all the bevel to obtain a cutting edge to the outer face;<br />
the difficulty, tbereforto, is obviated by making the icuer face of the<br />
cutter, which is towards the mass ol the tobacco, incline outward<br />
from the plane of motion of the cutting edge.<br />
The invention also includes a combination of machinery for readily<br />
adjusting the feeding motion which advances the tobacco to the<br />
knives by whiob it is cut, to cut iL fine or coarse as may be desired.<br />
la the aocomfanying engraving Fig. 1 is a side elevation; Fig. 2<br />
iB a l on~titudina vertical section ; and Fig. a iB an elevation of the<br />
rear end of the machine; Fig. 4 shows in vertical section the<br />
machine arranged for pre&ing. The same letters indicate like parts<br />
in all the figures.<br />
a is a frame or standard, in the urper part of which is fitted a<br />
horizontal bed b with parallel vertica aid~, c, c, forming a trough<br />
to r eceive the tobacco to be out alter it has been preased, and along<br />
which it is moved towards tbe outten!. To this trough is fitted a<br />
cap plate d, which, after the tobacco has been placed in the trough<br />
is held down by a wedge key t. At the side of the trough is<br />
mounted a horizontal abaft f, to the front eud ol which iB secured a<br />
By wheel g with arms and e. crank handle, and to the inner lace of tbe<br />
hub and rim of this wheel are secured cutters h, h, which stand off<br />
from the inner face of the arms snfficiently for the passage of the<br />
cut tobacco. The cutting edge of the cutters is made convex in the<br />
form ol & segment of & circle to obtain a gradual draw cat, and<br />
either smooth or serrated, 11ccording to the purpose for which the<br />
tobacco may be intended. The inner face of these cotters, that is,<br />
the face towards the front edge of the trough, is bevelled outward<br />
from the cutting ed~e to the back, so that tbis entire face from the<br />
cutting edge is inchned outward from the plane of motion of the<br />
cutting edge. This eiTt~ctually preveniB the cutters from being<br />
gummed by the juice which is forced out from the tobacco. The<br />
front edge of the trough should be ol steel, with a sharp square<br />
edge to facilitate the cutting operation. The tobacco is fed forward<br />
by a. follower i on tbo end of a screw j, which peasea through a<br />
rotattDg nut k mouuted on the rear end of a saddle-piece l, which is<br />
free to swing on trunnions m, m, from the sidss of the framt~ a for a<br />
purpose to be presently described.<br />
When the machine is used for cutting, the saddle-piece l ia held<br />
in a horizontal position by a securing pin n, or other equivalent<br />
means. '! 'he not k carries a ratchet wb e~~l o, which is actuated by<br />
a pawl p on an arm g, whiob turns on the rear part of the nut k:<br />
and thia arm '.1 reoe1ves a vibratory motion through a connecting<br />
rod r from a crank 1 on the rear end ol the fly wheel shaft f. To<br />
regulate the extant of feed there is a cam plate t against the outer<br />
face of the ratchet wheel, and mou11ted so tbe.t it can turn on the<br />
nut k. A portion of the periphery of this plate is of less diameter<br />
. '<br />
_._._ ---,, .......... ------<br />
• •<br />
. ...., ·-.. ' -.... . "'\.<br />
~--<br />
·-·t--·-----<br />
F' I C • I .<br />
~ ·: "l '"'<br />
F I C •<br />
• •<br />
'"-·--- -'"'-·-·--~- -- - --·<br />
,..------·- ....<br />
•<br />
\: ........ -- 1-------.---·--<br />
•<br />
------- ............ ;<br />
• : I<br />
: I • I ~_. I<br />
'<br />
I<br />
'•I<br />
I<br />
- . ~ -<br />
~- ~ ~··,<br />
than the ratchet wheel, and the rest of greater diameter, so that aa<br />
the arm q vibrates the pawl p, the cam form of the edge of the cam<br />
plate will determine when the pe.wl shall act on the ratchet teeth.<br />
The cam plate is held by a•screw passing tbroush a segment slot u<br />
to admit of setttng it, so that by turning and setting the plate the<br />
extent of feeding motion can be readily adjusted. The horizontal<br />
bed b o( the trough iB movable, and rests on an open part of the<br />
frame a.<br />
Preparatory to cutting tobacco it is to be pressed, and for tbi1<br />
purpose the connecting rod r ia disconnected from the ratchet arm q,<br />
the 680oriug pin n is taken out, and the saddle-piece l turned up in<br />
a vertical position, as represented at Fig. 4. The nut is also secured in<br />
the saddle-piece l by means of a eet sorew t1 to prevent it from h.trning<br />
in its bearing. The bed b is then removed, a ad a portable trough 111<br />
is placed on the base plate z of the frame a: the tobaooo is then<br />
piled into the trough, anti a movable top y is put on it; lben by<br />
turning the screw j. by a band wheel z.. on its outer end pressure is<br />
applied to the movable top y until it is pressed down to the required<br />
ex ten~ in wbicb position it is secured by wedges or other su1table<br />
means, the screw raised, and the movable trough is hken out.<br />
After being so pressed and held the tobacco can be taken out o(<br />
this trough and be put in the trough to be cut, as first descn"bed.<br />
P~m~.otzux J..No rTS PnenuCTs.-ln the treatment of petroleum<br />
almost every part of it is brought into a mercbantable condition ;<br />
even the reaiduum or coke wbioh remains after the various oils and<br />
gases have been obtained is turned to aocouut for fuel, being fraquently<br />
used to carry on the several chemical processes to wbioh<br />
the crude petroleum ia submitted. The produoiB obtained arebenzine<br />
or naphtha, burning oil, paraffin, and the coke. The<br />
napbtba, which is the lighter elemen~ being something between a<br />
gas and a fiuid, is driven ofl frolD 90 deg. to 300 deg. of beat, and<br />
constitutes about 15 por cent. ia bulk of the crude oil. The lighiBr<br />
naphtha is now called gasoline, and from it an illuminating &a& iB<br />
prepared. T he war111lb ol the hand will cause it to boil. A. heavier<br />
distillation iB used for cleaning purposes, and a still heavier ha.s<br />
been used by painters as a substitute for spirit or turpentine. At<br />
from 300 deg. to MO deg. the product of the still ill a light oil,<br />
which, after treating with sulphuric acid and caustic soda, for the<br />
purpose of deodorising it, becomes the burning oil of commerce.<br />
This constitutes about Gt) pl!r cent. of the crude oil. As the heat<br />
is gradually increased from 600 deg. to 800 deg. heavy oil is produced,<br />
which, being treated in tbe same manner as the burning oil,<br />
is then barrelled up and pa.cked away in the cellar, with ice and<br />
salt., for the purpo&o of cb1Uing it as it is called. This is effected<br />
in about a week, when, upon opening the barrels, tbe oil is found<br />
to have &88umed eomethio,g of tbe appearance of calves'-footjelly.<br />
It is then put into canvas bags, and beiu~~; placed under a screw<br />
press is subjected to an immen&e pressure. The finished lubricatiug<br />
oil is thus squeezed out, and separate~! from the paraffin, which is<br />
found in the bags in tbe shape of thin white cakes, which is almost<br />
perfectly tl\6teless, and in every r~pect resembling wax. This<br />
t.eiag purified is used for the purposes to which common wax iB<br />
applied- such as the making of wax candles, clear starching, the<br />
mauufaoture of chewing gum, &c. In it.s refined state this paraffin<br />
is worth from twenty cents to thirty-five cents per pound. Tbe<br />
lubricating oil will, perbape, make 9 per oent. to 10 per cent. of tbe<br />
amount of crude from which it is distilled. The faraffin may equal<br />
1 per cent. At 800 deg. the content.tl of the stil wilt show a red<br />
beat. The distillation is then stopped, and the residuum, which ia a<br />
sort o( coke, similar in appearance to ordinary coal cok&, is removed<br />
and ueed for fuel.-.Mining Journal.<br />
•
EC. 8, <strong>1865</strong>.<br />
-- -<br />
ENGINEER.<br />
SHIPTON AND MITCHELL'S SHAPING AND FORGING METALS.<br />
F I C. 3 •<br />
fiC.I.<br />
FIC.2.<br />
f I C.7<br />
Tms invention, patented Ly Messrs. J. A. Bhiptoo and Bober t<br />
Jr!itobell, or Wolverhampton, rob.tea to a new method of manuCa.cturing<br />
gas fittings known as tees, elbows, bends, cr 086es, aud couplings<br />
and other .gu fittings by machinery worked by steam, water, com~<br />
pr818;0d atr, or band power, auch machinery being applicable to<br />
ah•PIDg and forging other metallic articles.<br />
Under .the modi~callon in which steam is employed, one part of<br />
tho. mach•nery oonsl8ta of a aole or base plate having two horizontal<br />
oyhnders bol.t.ed thereon, with pistons having dies of the req~i red<br />
shape fit~ed 1n t~e end or each, and wh_ich meet or converge on<br />
f!team bo1og apphed at the back of each p•etoo. At this point there<br />
Is a hlook or mould secured to the sole or buo plate, and over which<br />
&. verllcal oyl.inder Is ca~ritd ~n a suitable framework, having a<br />
pa~ton fitted w1th a mandril or d•e, the pistons of all these cylinders<br />
be10g actuated by st.!am regulated by valves.<br />
According to another form of machine which may be used for<br />
forging, plaoishing, and tini.ahing such articlee, cylinders are placed<br />
at rtquislte aoglee, having pletoos filled witb mandrils or d1ee for<br />
the purpoaes of shaping, forging, and finishing lbe aforesaid articles;<br />
thOBe cylinders being bolted to a framing attached to the sole or<br />
bMe plate, which has a blook or mould secured to the same at the<br />
point where the dies of the pistooe meet, and having movabln<br />
mandrils worked by levers and slides operated upon by & vertle&l<br />
cylinder and piston. I n applying this machinery to the manufact<br />
ure of gaa fittings aa above named, or other metallic artioles, a piece<br />
of Iron Is atampPd or otherwise prepared to the required shape, la<br />
laid on the block or mould of tho first deacribed machine, and a<br />
mandril is placed upon the same, and tbe piston or tbe vertical<br />
cylinder containing another mandril is caused to deaeend on 11och<br />
flr•t-uamed mandril, which compresses the iron into the block or<br />
mould, aod causes the edges to turn up, and by admitting steam at<br />
tbo back of tbe pistons of the horizontal cylinders the dies in the<br />
pistons of such cylinders come togelher and further compress the<br />
Iron into the required shape upon the mandrill!, and from repeated<br />
blows from the pistons cootain•og the dies (which can be obtained<br />
by tbe admisaion and emission of a team in the cylinder) such articles<br />
aro shaped to the rtq uired form.<br />
The eecond macb1De has for ita otject the forgin,, planishing,<br />
and .Oniabiog euch article,, and for tbete purposes tbe patentees<br />
place them on mandrild cont&ioed in bliding blocks worked by<br />
le vera, actuated by a vertical c)'linder, aud cause the pistons of tboae<br />
cylinders which contain dies of the required form to descend, so a~<br />
to bring the said dios on to such articles, and forge, planisb, aud<br />
tlulqb the same.<br />
Fig. 1 In the accompanying engraving, ie n front elevation<br />
(partly in section) of one wod•6cation or machinery for shaping<br />
~,<br />
and l-'1,;. 8 Is a transverse vertical eection of tho machiue; Fig. 4<br />
la a front elevation of the 6econd or finish in~ machine; Fig. 6 is'"<br />
11lde (•levation of same; and Figs. 6 and 7 lllulllrate the various<br />
relative positions of the mandrll8 and dies when operating upon<br />
tbo piece or metal to be shaped.<br />
A, A, are two hor izontAl cylinders (Figs. 1, 2, and 8), which oontain<br />
tbo pistons D, aod are bolted on to tbe sole or base plate 0 .<br />
l~ acb of these pistons carriee a die D or the rfqulred form. A<br />
l>lock or mould E, llbaped or indenUl4.l according to tbe desired<br />
abape or the article to be produced, is secured t.rjXtti o£<br />
Ornn and otbur dlatriclti; naUvos of Morocco weaving ~ilk, cotwu,<br />
aud woollen fabrics, making ffz caps, aaddl011, bnd arms, and proparlog<br />
sbagreen ; negroes of Soudan t>roduoing Clltton cloth,<br />
morocco work, and pott.ery ; tbe haH-casto"' or Putl1 B/Ltn01 1<br />
of thu<br />
hie of Bourbon, making sacktt for ~ougar and cofflle; "uatoliauH<br />
weaving Smyrna carpota, s ilks, and eloth ol gold; Syrian• f .. uricatior;<br />
tiasu~ and arms of Damaaeus, Aleppo, and Lebanon, motbctof-pearl<br />
work of Bctblobem, and gold work of Ueyrout · Puraians at<br />
work on Kurdistan carpots, si lk embroidery, Klrmao\bawll! aud<br />
11ilks aud cottons of Yord, enamelled t ilea, and damucouod a'r1ns ·<br />
Indians weaving mu811us, embroidering c~bmeres, engmviog ivory<br />
aud wood, and twisting tbrcada or gold into bracelets and othur<br />
oroameol.il; Cambo~ian.e fabricating box ea and toys from "uulal<br />
w~ : Siamclle cantng rhinoceros horu ; and, perhaps, Cbinamencarv•ng<br />
& nest of Ivory balls ; Japanese p&lDtlllg tbe1r tucomparaiJiu<br />
lac.quer wares; Moxicans t urnir.g tboir perfumed pottery: and roJt!klull<br />
c:nmposmg bead-dt0o808 of feathers aud l>ead·~.:wbroill••rcd<br />
mooaas1na.<br />
The above i.a a f<b(ul sketch of eubjecti now un•ll'r tile con-<br />
•<br />
•
•<br />
370<br />
THE ENGINEER.<br />
DEc. 8, 1866.<br />
slderatioo of tl1e Itnf>"rial Commiuil)u, which calu upon all tbe<br />
civili»od world to aid i~ io its labouril. H iB no~ to be euppoeed that<br />
the dlrectora of the Exhibition will accomplish all or ball of that<br />
which it hAll sketched out, bot ils efl'.,riB will certainly , not be<br />
fruiU616, and there is little doubt that the Exhibition of 1867 will<br />
prMeot ao amount of variety and novelty which has never before<br />
been united on one spot.<br />
T he following are tbe amounts of space aUotted to the various<br />
1ta&ee taking part in the Exhibition:- ,<br />
Sq. Metrct.<br />
sq. 11JOtrca. '<br />
F r&Oee .. .. .. .. 6i,056 Ilollaod •• •• .. .. 1 998<br />
Oreat Britain ADd lro· Spain .. •• .. .. 1.004<br />
land •. .. .. .. 23,002 Turkey .. .. .. •• 1,200<br />
Pronlo, AosLrio, And Portul(al .. .. •. •. 1 , 1~4<br />
Oermao Statea (each) 7,628 Brazil• .. • • •• .. 1172<br />
Belgium . . . . . . .. 7. 249 Chlnll and JApan, South<br />
haly . . .. . . . • . . 3,8f8 America, Africa, anl.l<br />
Uolc.ed Statea of Amorlea 8,346 Ocean:l (cncb) . • .. 810<br />
RuJh!Cl .. . • •. . • 2,916 Denmark.. .. . • . . 660<br />
Switzerla nd .. .. .. :.!,416 Orecce, Roumania, nnd<br />
Sweden nud Norway . . 2,091 Roman St.o.u• (each) IUS<br />
Nearly the whole of one side of the building and of the park t.re<br />
devoted to F ranlle. Great Britain occupies ~bat portion or the other<br />
aide which Is nearest the obief entrance, namely, that which faces<br />
the river ; the amount of park space aUotted to her is very ll\rge,<br />
and i t is hoped that her model farms and cottages, af$ricoltural<br />
machinery and produce will form a very attractive port•on of tbe<br />
E&hibitiou.-Journal oftk Society of Aru.<br />
LETTERS TO THE EDITOR.<br />
(We @ not lwkl ourldr;u rupfmlihk for tl~<br />
Corrup~mdmtl.)<br />
opinionl of our<br />
LIQUEFACTION OF STEAM JN CYLINDERS.<br />
Sm,-I observe that in your remarks on Mr. fiowdeo 'e letter of<br />
the 17th November (page 853, third column) you cite an opioion of<br />
mine as if my holding it were of itself a reCIBoo for IlB adoplioo by<br />
others.<br />
Although it is of course flattering to me to bave my author<br />
Uy referred w by you in such teriDll, I should be very sorry 10 Lave<br />
it 11opposed that I set up any such p•eteDSioos on my own part, or<br />
that T expec~ or wish any opinion of mine w be received by others<br />
upon any grounds except the facta and arguments by which I have<br />
myself been led to form it.<br />
With respect to the li9oefaction of steam in cylinders, those facte<br />
and arguments are contasned chiefly in two papers, tbe first by myeelf,<br />
the second by M r. James Brown lee, in the" Transactions" of<br />
the Institution of .Engineers in Scotland for 1861-2. In those<br />
papers some well-known experiments by Mr. Jeherwood are<br />
analysed, and 1 thG following concloeions are deduced from them:<br />
That loa cylinder without a steam jacket, and witbooteuperheatiog,<br />
the quaothy of etea • iqoefled, though not exacUy propor tional to,<br />
depends upon and in ,., ~ 868 with the following quantiti88-'rhe deprealon<br />
of temperature corresponding w the expansion of tbo<br />
steam, the extent of tbe surface of metal exposed to contact with the<br />
newly admitted steam, and the duration of that contact. Hence it<br />
may be inferred that If in two or more uojacketed cylinders,<br />
whboot euperheatiog, the rates of expansion aud the duration of<br />
contact are the same, the quantity of steam liquefied will be least in<br />
that cylinder whJch exposes the least sorfroce to cootac~ with the<br />
steam.<br />
W. J. AU oQOOBN RARKL'a.<br />
Glaagow, 2nd <strong>December</strong>, 18G5.<br />
TELEGRAPH CABLES.<br />
Sm,-I have been much iotereated both by the articles on the<br />
electrical, aod by the dillcuasion upon the mechanical, construction<br />
of submarine cables, which have been comm.-oced in your columns.<br />
This discUB8ion appears to hne originated upon t he statement<br />
that Allan's system of mechanical construction, '' whatever may be<br />
ite meriLe and demerils, woald doubtless have sufficed to obviate tbe<br />
ditaetrooe failures which have again and again occurred in the<br />
attempt to lAy a T ransatlantic telegraph." Whereupon yoor able<br />
correepondent, " T. M.," gives eome very good reasons in support of<br />
his op inion that the mechanical strength of submarine cables bae<br />
generally been overrated, and is in point of fact insufficient w allow<br />
of cables of the erdinary constroction being soccesefolly laid in<br />
deep water; and further intimates tbat" like fatal errore of construct<br />
ion will be found to have been committed" in what he appears w<br />
coo6ider as on e of certain '' favoured ecbemea."<br />
N ow, while admitting the importance of the considerations put<br />
forward by 11 T. M.," it does not appear w me that this gentleman<br />
hAll been at all eooceesful in dilproving the assertion contained in<br />
yoo.r leading article, and quoted above. In the first letter of<br />
" T . H .," eighty tone per square inch section ie ae6omed as the<br />
breaking s train of the steel wirea in Allan's cable, and upon this<br />
auumption it la calculated that thla cable would suppor t two<br />
and • ·half milea of its own length In water. But In " T. M.'s"<br />
second letter the minlmum breaking strain of the steel wires used<br />
in .Allan'e cable is shown, by the reeulte of experiment, to bave<br />
been 129 tone per square inch section, when the wire was fairly<br />
broken in t he straight or suepended portion, which wonld allow of<br />
the cable soppor ling four miles of ita own length in water.<br />
I am ready to agree with "'f . M." that neither A.llan's cable nor<br />
the new Atlantic cable can fairly be considered able to support<br />
11,000 fathoiDll of their own length in water. But I bavo reason to<br />
believe, from the reeoJts obterved dnriog tbe tesLe carried oat by the<br />
Government Telegraph Committee, that tbe above specified length<br />
of four miles would in practice prove to be considerably below,<br />
rather than above 1<br />
tbe mark. It may be weU to give some r eason<br />
why this should De the case. I n the fint place, it la not the fact<br />
that the steel wires constitute t he whole strength in Allan's cable.<br />
These wires ere not abeolut41ly lnexteneible; under a powerful<br />
strain they will to some ex tent become embedded in the copper<br />
conductor, cutting a ecrew thread upon its surfflce; a od thus t be<br />
wiree, the copper conductor, and even the gutta.-percba sheath, will<br />
all take the s~rain together. Aod when the welded joinls in tbe<br />
1teel wires are properly distributed, they are, owiog to tbe peculiar<br />
mode of construction adopted in Allan'e cable, practically of very<br />
little detriment to the strength of the cable.<br />
I mutt coofe11s that, tboogh I am one of those who are " pleased<br />
to admire cables of light, strong, and (to all intents and purposes)<br />
lnexlenalble construction," 1 am carious to learn something of the<br />
cablee referred to by " T . M.," beloogiog neither to tiJis category<br />
nor to the olue of beevy cables, bot of maoy t.ons strength, and able<br />
to suppor t 11,000 fathoiDll or more of their own length in water. lf<br />
the advantages of these cablee, as compared with the former,<br />
liTe enfficient to counterbalance the expense of constrnctioo, which,<br />
it ie hinted, will be even greater than in the caae of the last AUantio<br />
cable, " T. M." may r ender good service to the cause of submarine<br />
telegrafhy by dc:ecribing the system of construction wblcb be<br />
hiauel would advocate. Bot it ie to be borne in mind that the<br />
present ~ndeooy of practical improvement ie to reduce rather than<br />
to increase t he coat of telegraphic undertakings, whilst securin1<br />
greeter mechanical and olectrieal efficiency than has hJtherw been<br />
attained.<br />
A T EL%OAAPDIBT.<br />
TELEGRAPH CABLES.<br />
Sm,-Wbatever doubts your correspondent" T. ?tL" may entertain<br />
u to the important results to be obtained from my system of<br />
conetruotiog telegraph cablee, I can only say that I am neceeearlly<br />
in a far better position than he can be to judge of the matter ; and<br />
although I mDllt admit that, until I produce a cable-which hitherto<br />
time and circumstances have not allowed me to do-yet from the<br />
e:xperimenta that 1 bave bad made to test both the electrical properties<br />
of the materials I use, aod the mechanical 6trengtb r eaoltiog<br />
from the peculiar syetem of conetruction I adopt, I am well assured<br />
that the 1tatements made in my prevfoDll letter are substantially<br />
correct, and that all the properties required.for a telegraph cable, as<br />
1peoi.fted by yoo.r correeponden t, are to be obtained by the adoption<br />
of my principle of manufacture, and by the u&e of my ioaulating<br />
compound, v1z., sp&lld in signalling, mechanical strength aofficieot<br />
for at least five times the deepe!it water, and, to quote the words of<br />
your correspondent, of Ioogb constitution eoffioleot to eorvive the<br />
rough haodling and the wear And tear to which submarine cables<br />
are subjected. both in the process of laying and after tbey have been<br />
deposited in the ocean's deptbe; aod I am confident that the day is<br />
n o ~ far distant when the difficnlties attendant on submarine telegraphy<br />
will be eucceeefully overcome, and when submarine cables<br />
will constitute a real and rernunerative propeny, and not a mere<br />
r ecord that eo many millions s~r ling have been wutefolly deposited<br />
In the sea. I anticipate, wUh. t he g reawt coolhlence, the connection<br />
or L ondon and New York. by au ~fli c ien~ and durable cable.<br />
10, Strand, London, Dec. 6, 1866. JonN M.AOIBTOSB.<br />
T.E Tl~C CABLES.<br />
Sra,- Tbe system for compouud levers aod deed weigh~ adopted<br />
by the Board of Trade 111 an adjaoot to the hydraulic chain and<br />
anchor testing m11chioe, and ioteoded to a!lcertaio tbu rcr.l pres .. u re<br />
laid on tbe chain or auchor, i9 1 in my oatimatiou, objectiouable, as<br />
tiJe correctness or levers on thi11 principle can no~ expvri0l8ntally, or<br />
materially, be proved. 'J'be knire edge at the end of the main lever<br />
being at right angles with tbe fulcrum, abo the gear necessary to<br />
keep these levers in poaitioo, req ui re~ gr eat attention from the<br />
persoo in charge, or g reat errors may take place.<br />
As a r emedy w tllese objectiooi I would suggest. that a abort<br />
hydraulic vertical prell!, in all respects of the aawe dimensions and<br />
construction as tbat, laid horlzoota!Jy 11od conoccted to tbis by a<br />
pipe, so that the preaso.re will b& tbe same in both cylinders. The<br />
riMe of this vertical ram n eed not exceod two inch~ in any case<br />
over the be&d of t he short vertical ram. Oomponod levers aro w be<br />
placed, the folcrnm of the principal levers pressing on steel bearings,<br />
fitted on the corrtct centre of the bead of tbe ram.<br />
The friction in the collars of the rams (or the packing of pistons),<br />
being tbe same in both presses, is not to be taken in account, the<br />
lovers and dead weights Indicating the correct elrain ou tbo chain<br />
or anchor.<br />
.All the knife edges of these levers being In perfect straight lines<br />
tbey may bo easily proved iu the same manner ae the levers of<br />
wtigbiog macbioos.<br />
Jo addition w these levers a small indicator valve or ram may be<br />
attached, pressed down by a lever with a sliding weight on the<br />
long ann, the scale on this lever to be graduated from the pressure<br />
indicated by tbe compound levers a nd dead weights. By this wode<br />
a powerful crab winch may be placed at t he lower end of the<br />
machine, and a pres&ore of a few tone laid on the chain or anchor<br />
before the force pumps are pot in motion, which will save much<br />
lime and labour.<br />
G.EOBO.Il E1uua·<br />
Jersey, 30th November, <strong>1865</strong>.<br />
ENGINEElliNG QUALIFICATI ONS.<br />
SrR,- As several of your correspondents bave honoured me by<br />
noliciog wy communication of tbe 21st November upon tbe above<br />
subject, and one of them," Con tractor's Eogineer," deslrea further<br />
information, 1 most again reqoest your editorial indulgence.<br />
'!'he perusal of the letter signed •• Oontract.or's .Eogineer" gave<br />
me great satisfaction, aa i~ is only general experience that when any<br />
new ecbeme fiods n o antagonist it must arile from being of too<br />
puerile a nature, or from lack of ioterest in the result.. Before<br />
ausweriog his ioquiries I may premise that bil adoption of tbe<br />
initials of another correspondent, viz, "B. 0. W.,'' with the addition<br />
of " W. 0. W.," might have been judicious, as bl.a ba.rk is considerably<br />
worse tbao hJe bite. To his lirst question r especting my object<br />
in propounding tbie scheme I wooJd observe that i ~ is solely from a<br />
desire to advance oor kindred profession from the anomaloOB position<br />
it at present occupiee, to each a prond etaodard of tfficiency that<br />
it will obtain recognition from tbo world at large as being indeed<br />
ono of the profeaeioos. Now" Oontract.or'e Engineer" and myself<br />
are quite agreed as to the ridicoloos figure any man would make<br />
who presumed t.o give evidence upon a subject with which he was<br />
not practically acqnaioted, bot we immediat.,ly fall back upon the<br />
i nquiry-When does a man become an engineer?<br />
Ir be be not an eogioeer be bas no rigbL to undertake engineering<br />
work; a od if the acknowledgment or hie claim to the title depends<br />
upon biB suCC688ful carrying out of works, hemostevidently, during<br />
the first part of his career, be workiog under a self-assnmed title,<br />
and hence wor tblell! ; or, should tbe profeaeioo at length recognise<br />
him 118 an engineer, they, consequently, have been doing an<br />
in justice daring his first stage.<br />
Of course in this argument 1 have<br />
coo6idered that a maD who is simply an engineer's assistant carries<br />
ool not his own works but those of hie employer therefore when be<br />
commences practice for himself be has a olear Held, and cannot be<br />
said w have any works of his own in justification of hie ae~umed<br />
title. Herein ''Contractor's Engineer " and myself difier; be feellJ<br />
quite satisfied with t he present state of tbiogs, viz., that a man<br />
moet dabble (according to deduction from hie thesis a profeesional<br />
nondescript) in engineering, and when , by good luck or guidance,<br />
he falls in for eome work of magnitude, whether his carrying out of<br />
the same be direct piracy of the labours of others or no, be becomes<br />
forthwith an engineer. This is sorely what Euclid would style a<br />
caao of reductio act abmrdam; my impreeaion leads me w argue tbat<br />
there m net be some period at which tbe man became qnali1led for<br />
engineering work and hence an en~eer.<br />
I think "Engineer's Contractor' would find a most decisive refutation<br />
of hie theory that tbese diplomas would not be valued were he<br />
to obser ve the interest with which tbe names of senior wranglers at<br />
our universities are echoed throughout tbe country, and tbe eoperior<br />
positions these men hold tbroogb life. T be advantage of po98e8sing<br />
high diplomas ie equally true of oo.r parochial and Jiospital medical<br />
appointments. N ow, if t hese work eo well in other p orsoita, what<br />
should prevent their successful application to engineering?<br />
Whereas under the present system, as there is no standard of excellence,<br />
most appointments mus~ be decided by interest.<br />
As t.o the attainments of many engineers, "Contractor's Engineer"<br />
and myself bold the ea me opinion; but reapectiog their<br />
mathematical requiremen ts oor views are at Vllr iance. If hie opinions<br />
are right, then the investigations of Hodgkinsuo, Barlow, Tate,<br />
Stepbenson, F airbairo, and last, bot not leas~. Professor R•nlUne,<br />
have been penned in vain, or are only a dtad letter to those baviug<br />
no fortber matbem.a~ical knowledge tbao " aritbmetto and the very<br />
elemente of mensuration." No doubt eoob a man may obtain and<br />
tranai\Ct a fair o.mount of p rofessional work, but it must be by the<br />
reduction, enlargement, or plagiarism of some other work, as without<br />
an extended course of matbemalics be is quite onable to venfy<br />
hill reaul te, and, therefore, cao n&ver become a ecienti6c engineer.<br />
" Contractor's Engineer" makes some strictiHes upon the " preteotioua<br />
dissertatioue" of the new ecbool, " but this ia a thiog no<br />
fellab eau understand." I bave always supposed the existence of<br />
three schools, viz., the practical, theoretical, and eclenlific. The<br />
followers of the drat produce work whloh is always respectable;<br />
tbose of the second entertain chimerical and impracticable f&Dcies;<br />
while the third, by the combination of l.loth, ensures the performance<br />
of the first with the p rogresaion of t he second ; aud as these<br />
form what may be styled the ne w echool, surely upon formiog a<br />
retrospect of lbo last thir ty years we cannot call either their<br />
laboora or thoir dissertationa pret.entiooe or puerile. He alao mentions<br />
the abDlle of the calculus; all ! eau say upon thiB is that any<br />
one found abusing the caloulos ehonld be summarily convicted.<br />
Regardio~ the use of "conic sections," let me refer "Contra.ctor's<br />
Engineer ' to aoy treatise containing an analytical inveotigrotion<br />
lnt.o the properties of tbe clrole, ellipse, parabola, &o.<br />
Similarly<br />
to b ims&lf, 1 several years ego emerged from popillage; but<br />
ha.ving reflected deeply upon the disadvantages of t be present<br />
system, I am anxiooe that Jutore engineers should enter the world<br />
with an education more in keeping with the necessities of t be age;<br />
the main difference between yoarcorreapondentand myself being &bat<br />
along with hie practical education I am desirous of eooing combined<br />
more of abetract truth and refinement; a.ud alao, as theremDllt be10me<br />
minimum qualification whereby a man may be accounted an engi-<br />
n eer, I bope ateome future day to see a 1tandard 1et up which every<br />
one mnat pUI before commeneiog practice on hit o"o account.<br />
In taking leave of "Contractor'• Engineer," I troat that aboold<br />
any expre~eion of mine appear to him unkind or unwarranted he<br />
will accept it in t he spirit by which it la dictated, viz., that of<br />
friendly interest. The eoggoationa of "B. 0. W." aod an "Old<br />
Driver" are a.cceptable addltioo1 in tbe w•y ,..f teellmooy aud<br />
assistance i only let me remind the former that the cooslderatloo of<br />
his valuable and Dec616ary inqu.iriea could only be obtained t broogl 1<br />
the medium of a board, who would naturally ar~rward• merge low<br />
examiners. Tba~ the eumloatloos would of thewelve1 etimolat J<br />
our youn~~;er members lJ further ooofirmed by the letter from "A<br />
Pup1l," who is evidently a juu ior ha ting alter yoatbfol hoooore.<br />
I look forward to a further advocacy of this subject by those<br />
more able than myself<br />
T . lf.<br />
Sm,-1 am sore all right-f..,ellog engioeord have read with<br />
pleaeure and ioter011t your endeavours to place our profe83ion on<br />
lbe footing it deserves, and moat ardontly wish your well-direcWJ<br />
efforts may meet with the success t hey merit. 1 am firmly of<br />
opinion a legal qualification to practise any bonU. fide branch of our<br />
profeaeion should be instituted as quickly M<br />
poa,ible; and it<br />
appea.rs to me i t may' be done by allow1og Maooiates or membert of,<br />
eay, the four leading institotiona-including naval architecture- to<br />
retain their position noqoeationed, provided they have belonged w<br />
thoae re pectlve lnatitotiuns for a period of, Bay, tbrce or five yeare ;<br />
aod that tllote members of younger or more recent date have t bu<br />
option of passing a routine examination w tebt their ability, wbllo<br />
no new members of any gnde ebould be &llmitted without a. rigid<br />
examination after e. suitable pr~ribed coorll6 of study, accompanied<br />
by aclual experience.<br />
F or myself 1 may say I am an engineer and naval architect of<br />
eighteen years' experience, bot 1 have only comparatively receotly<br />
been iuduced to join any in&tltution whatever; and as I;come witbio<br />
tbe t hree or five years claae I should be quite prepared to undergo<br />
the necessary e:xaminatioo to entitle me to practile. I am now a<br />
member of the tbreo leading lDStitutione, viz., Civil Eogineere,<br />
llecbanieal Eogioeers of Bir mingham, and Naval Architects, beside<br />
the Society of Art.a ; aod 1 regret to ·have Been aioce my ad minion<br />
the extreme laxity that ie OCCI.Iiionally shown as to who are admitted<br />
as fre6b members. .A very iojuriooe proportion of the~e fresh men<br />
are not eo fo lly qualified as tbey should bo; a ad it ie no oocommoo<br />
thing to seek "association " or " memhi>r•IJ!p " as a meaos of<br />
advancing private iotereete, as it ie now pretty well koown that one<br />
or two iofloential l riends can pass a man tbrougb. Tbe I nstitution<br />
in Grea~ George.street is the moat strict of any, but I would wl..sh w<br />
see this, as well as all others of standing, more puticnlar, that our<br />
profession may retain that prestige it has eo long held, and n o~ be<br />
classed with "range " or "sanitary " engineers, so happily referred<br />
to io your impreaiiion of the 17th ult.<br />
We are fa.at approaching the state of things in Eoglaod wbicb<br />
holds good In this benighted and unhappy country, where every<br />
petty auctioneer or valner sticks C.E. after his name, as well as<br />
every overgrown echoolboy who may h ave pllllied eome simple<br />
college examination iu arilbmetic, mensur&tioo, and algebra, and<br />
have obtained the consequent certificate.<br />
I werely write this to asel..st in ventilating the subject you have<br />
talceo up ; and I earnestly hope the "big wigs" in Great Georg&<br />
strest, at Newball-street, Birmingham, and elsewhere, will t.Aike<br />
compassion on their younger and less favoured brethren aud at<br />
once advocate eome short snitable Act of Parliament, passed tbie<br />
n ext session, to legalise oo.r profession. A. R.<br />
Passage W eat, County Cork, Ireland,<br />
Decem.ber 6tb, l 865.<br />
CAST IRON BOILERS.<br />
Sm,- Tbe followin~ information is for the benefit of "J. J. S.,"<br />
Birmingham, who w1ebes for a n experience of the Harrison boiler.<br />
My father bought a Harrieon boiler, 18-horee power, in October,<br />
1864; it got to work that month. It got up a tea. m qutckJy and did<br />
pretty eatil>factorily when new. h cootioaed t.o go on well, bot I<br />
fancied it bep:an to take more lael. It leaked slightly from tbe commencement,<br />
bot not anything of coDlieqaence. By March, in <strong>1865</strong>,<br />
it leaked very little, but wu variabltt-sometimes it leaked, aod<br />
suddenly left off ; but then, up to March, it never leaked sufficient<br />
to be any detriwer.t to tbe wc,rking of the boiler ; yet 1 &till thought<br />
it did not make steam quite ao well as at first.<br />
I went from home on .April J 9tb 1 I SG6, and on or about May let,<br />
the boiler buut a. ball, one of the row n ext the fire ; it burst, or<br />
rather cracked , from neck to neck, pot. the lire out, and, of cooroJe,<br />
did no damage beyond making a meee-pressore tben about 4.6, 1<br />
believe, and plenty of water. Well, lt h .. d to be taken to pi6008 to<br />
be repaired, and when it was done 1t was found covered with 8cale,<br />
whioh adhered firmly and was detached with difficulty. I bellevt~<br />
there was no loose ecale in the boiler. Up till now the blowing·otf,<br />
entirely empty, had been carefoUy attended w once a week. The<br />
boiler had at tbla time a pipe pot upon it t.o join all the steam parte<br />
of eaoh slab just above the water line, this was done to prevent the<br />
lifting of the water ; 1 don't think it did. It went on workiog<br />
until on or about May 26, <strong>1865</strong>, when another ball cracked from<br />
neck to nedr. It had a n ew one put in, and this time there were a<br />
few fragments of loose ecele. Nuw that I had cracked two baUe, 1<br />
con1ldered it was owiog t.o the scale prevenliog the water comiug in<br />
contact with the iron uottl the iron became hot; when, I ~b ink, the<br />
scale ftew off, and t he water then comidg upon the heated metal<br />
cracked it. .After this second crack I put .E•t~ton'e boiler fluid io to<br />
try a nd remove ecale. It soon now began to leak dreadfully at each<br />
join~ which waa next the fire, eo ll!Och eo, tha~ it was a waate t.o<br />
pot East.oo's fl uid in, because it ran it out eo rapidly ~fore it bad<br />
had time to benefit tbe boiler. Up to puttlog t be botlor fluid in, the<br />
boiler on ly h eld because the joints were f oU of llC&Ie, wbicb tbe<br />
ftaid removed. We had tightened the bolt.s all they could be<br />
tighten ed ; b11t the balb were tight at tbe necks on t he side from<br />
the tire, bat you conld have pot a k oife·blade in at the<br />
front, looking a lmost as iJ the front bad con~rac~. We pot<br />
meal in now to prevent leakage, which it did iJ put in freqoenUy;<br />
but In AugDBt another ball or&ekod, a nd 1 had auother pu~ io. At<br />
tbie time, 1100ing t be boiler ran .., t hat it bad tu be mea led every day<br />
to make it workable at all, eome new L owmoor t " in boilers from<br />
B&Ckwortb, of Darliugt.on, were ordered at the latter part of<br />
Aogost; the other boiler still being worlt&d as well as it could. If<br />
it w.s filled at nigh~ ready for morning it bad gone entirely out of<br />
the glasses In the morning, and had to be re-tilled, and could get<br />
very httle steam, cooeequeo~ upon injecting aucll lots of water 11ud<br />
from having the fire W.lf puL out. We continued working it uutil<br />
one ball cracked after another, and finally s~m could not ~got up.<br />
h ie now standing that way, minOB some of ils fittings, aod 11 anyone<br />
wants it they can have I~ at a tithe of its cost. Perhaps some of<br />
your readers may havo more favourable repo r~ t han this i 1 hope so,<br />
lor their own sakes, as it has been a lot of t rouble and Inconvenience<br />
here, beelde the money lose.<br />
D os'r R.tOOIOUND IT.<br />
BRITISii RAI NFALL.<br />
Sm,-1 have to ask your readera' attention for a few moments to<br />
a request on the above subject, the importance of which in relation<br />
to eugioeering and drainage qoeatloos is w&ll known. It ia now<br />
some years since 1 began colltjctiog returns of ~be fall of rain-with<br />
wba~ soccese I will mention preseotly, but my main dUR.:ulty hu<br />
been to fiod oot the pert~ons who keep such records, aod oue uf the<br />
most obvious sources of asel..s~nce le the publiu press. I now,<br />
t herefore, ask from each and every journal la the Bnttsb Islee their<br />
all-powerful aid. When the collection wae first organised in 11:160,<br />
ecarcely 200 pereooe were known to observe aod record the rainfall;<br />
by steady perseverance, and the aid of a portion of tbe preee, the<br />
n umber hAll been raised until there are now more than 1,2{)0 places<br />
whence retome are regul&rl7 received. S till I know tbere are •<br />
maoy more, probt.bly hundred.l, who have either never beard of &hE'<br />
I<br />
I<br />
•
establishment of t. e&otr&l depot to which copies of &11 rain records<br />
•<br />
'<br />
DEc. 8, <strong>1865</strong>. THE ENGINEER. 371<br />
before stated, find no difficulty in getting them free from blowholes<br />
should be sent, or they hne been too dll!ideot to send them. It is entirely .<br />
of pt.ramount importance to gather these, and m&ke the tables yet I t.m &fraid I have trespassed too muoh on your space, but should<br />
more complete. 1 therefore beg lenve through your columns to uk be glad at some future time to communicate my practical experience<br />
every reader to think for a moment if be or she knows of any one on some other points.<br />
J.uus T • .BoYs.<br />
who keeps, or hu kept, & rain· gauge; or who has any tables of London, <strong>December</strong> lat, <strong>1865</strong>.<br />
rain-fall (or old we&ther journals), in their poseeseioo. ADd if they - --<br />
d o know of euoh persons, I ask them on behalf of science, of my<br />
fellow·obsernra, and on my own behalf, to use every effort to secure<br />
their assistance, and to favour me with their names and addressee.<br />
We want old recorde, we want records for the present year, and<br />
from many parts of the country we want returns for the future, if a<br />
few persons will noUiy to me tbeir willingne888 to assist, &nd to pay<br />
10s. 6d. for the verv obeap and llimple gauge now supplied.<br />
To preven t oeedfesa correspondence I &noex & liBt of the plt.ces<br />
in ?thddlesex whence returns have been already collected for the<br />
yurs mentioned iD the laet column , and ehall be very glad of any<br />
additions or correct ion e. Oilier counties, or the complete list for the<br />
whole ooontry, shall be eent to any one willing to make good use of<br />
it. I m&y add th&t an ln.fluential committee of the British Aeaoci~<br />
tion baa been appointed to superintend and assist in my investig~<br />
tboe, and tht.t they cordially support my present application.<br />
G. J. 8YXON8.<br />
186, Ct.mden-r7<br />
, (Batt.on-gardeo) . . Mr. B. C. Woods .. 1888 Imp.<br />
., (Mile End) • . • • F. Obt.rriogtoo, E1q. C 1882<br />
, (Offord-road) . . 110 .ilr. Strac:ban •• . . C 1864<br />
.. t (Somenet.-hse.) l f>O<br />
Philos. Trans. ..<br />
1i74 81,li87·18011,<br />
1812 . 27 , 1829 _. 2 '.l'<br />
.. (Spring-gardena)<br />
.. ..<br />
..<br />
" (Temple Bar) . .<br />
..<br />
(Wenmr. Aby.)<br />
..<br />
< ,. B ou•o~<br />
..<br />
{<br />
1<br />
(Wbneball) , Oardeu<br />
..<br />
.. • • • • .. ..<br />
.. • • • • • • • •<br />
,, .. . . ..<br />
N otting-hlll . . . . • .<br />
Paddington . . . . •.<br />
Poplar . . . . .. •.<br />
St. Jbn'a-wood(Lit. Soc.)<br />
.. (MeUoa-pl.}<br />
Spring Grove •• . ..<br />
l 'ottenba.m<br />
.,<br />
(Vicarage} .. .. ..<br />
., (Lordship-ID.)<br />
Twickeobam (Observtry.)<br />
Uxbrldge (Hare6eld PK.)<br />
Wlocbmure-btll . . ..<br />
36 J. W. Bazalgett.e,Eaq. 1868<br />
95 ,. 1 6S<br />
96 .. 1863<br />
. . Bent's Met. Jour. .. 1795-1807<br />
.. Dr. Hebordon . . . . 1766 61 imp.<br />
66? ., 17~67 Imp.<br />
26? ,. 1766 87 lmn.<br />
•. J . C. Baile, Esq. •. C 18.54·60 •<br />
. . Nlcbolaon'aJou.ro. •. 1808 10<br />
•• .. 1817 21<br />
. • Lady J:sayoln~t . . •. 1838 42 Imp.<br />
•. 8. B Bluot, Esq. . . C 18~ 6<br />
..<br />
25<br />
101<br />
, , lfiM-66<br />
Mr. Gaster.. • . . 0 1862-63 T<br />
B. J . .llontague, Esq 1857<br />
. . G. Leach, ~q . .. . 1862-67 imp.<br />
70 T. E. WyaH, £sq. . . 0 11!64<br />
.. Rev. J. S. Winter .. 0 1c61·62 T<br />
00 - Fowler . . . , . 1842-46<br />
. . W. D. Boward, Esq 184 7<br />
24 A. Ww, E•q. • • • . C 1863<br />
• • W . Vernou, .Eaq. • • C ISM<br />
. . Mra. Feltbam • . . . 0 18~8<br />
--<br />
SCREW SHAFT BEARINGS.<br />
Srn,- Beiog a cooatan~ reader of your valuable journal, and<br />
having often derived imporl&ut information from its pagt!S, it has<br />
occurred to me that 11ome details of practical experience 1 have bad<br />
with the end or stern tube boarinto:a of eorew abafta, and the method<br />
I have used, with great enoceea, for Ct.6tiog on the brass, would Isle<br />
acceptable to your readers. I have had a great many of tbese shafte<br />
to coat over on foreign stations. The stern tube bearings, exposed<br />
u they &;e to the aotton of salt water, renders it very dea~able that<br />
tbie part of the shaft should be covered with brass. Notwithstand·<br />
ing tbat this appe&rs to be a simple operation, yet I have known the<br />
oatiing of large sbafte to cause gre&t expense and trouble before a<br />
solid casing of brass cou_ld be had. In moet of our large eogtDeerl.og<br />
eatablisbmenta this work is pretty well understood, yet I have<br />
eeen in many largo ahope a great deal of time and labour spent in<br />
drilli.og out the blowholes and plngging them up with brass pins,<br />
which often get loose again, or the metal, not being of the same<br />
kind, wears unequ_aUy and cuts the bearing, when, by a little care<br />
and knowledge, not the elighteet blowhole need occur, even when<br />
coating the largest bearing.<br />
I know that many shops adopt the plan of boring out the brass<br />
aleeve aod sbri.oking it on the abaft, but 1 consider the method of<br />
casting the brasa oo, when done in the right way, to be much the<br />
beat job and also the cheapest.<br />
I need not explain the manner that the mould la formed round<br />
the abaft, u thia will be familiar to praotical men, bot it is best in<br />
all caaes of dry sand or loam, and thoroughly dried, without any<br />
vegetable matler in the Nod.<br />
The brass should be aix of copper and one of tin, melted with a<br />
slow moderate blast. Tbia latter is important, as I have alwaya<br />
experienced trouble and blowing if the brass was melted too quickly<br />
or a &trong blast used.<br />
Tbe brus should not on any account be melted in & furnace<br />
which hu been used for melting iron; it is beet to melt the tin<br />
separate from the copper, but mjx them jost before being naed by<br />
pouring the melted tin In among the copper and stirring with a<br />
copper rod. I ft.ud If an iron rod is uaed for stirring it haa a<br />
tendency to make the metal porous. The t~haft abou_l d be heated eo<br />
that it may ahrink equally with the brasa. It ought Dever be<br />
heated beyond a blaok beat. The abaft must be perfectly clean and<br />
free from rust, and have a light coating of ohalk and water bruahed<br />
over it. It is best to apply the chalk mixture before the shalt is<br />
heated.<br />
The metal should be poured quickly and the gates placed equally<br />
o?er the mould. The bead of metal ahould be kept well up.<br />
If these instrncliooa are followed perfect sucoeea in c&&ting the<br />
brass coating on IICrew ehafta free from blowholea may be secured.<br />
I need hardlT mention that in a great many other par te of<br />
machinery coau.oge of brt.88 are caat on iron, euob, for instance, as<br />
the rolls uoed in paper maoblnery, where it ia of the greatest importance<br />
to be free from blowholes. I have seen t. great many cases of<br />
failure in casting the braas solid on tbis olaea of maobioery, and<br />
doubtleee you and your readers muet have noticed many inatances<br />
aleo.<br />
Bo far aa my experienoe goes I h&Ve alwaya succeeded with the<br />
method indicated above, but it waa only after a long practioe and<br />
many f&ilu.ree that I got into thia plan.<br />
At the repairing atatlon1 In ]ndia and Ohlna I bt.Ve re-coated a<br />
great many ~~Crew abaft bearings, and for eome time have tried t.<br />
large number of rolll of oast iron with ~logs of bra.se, ud, aa<br />
•<br />
•<br />
WHERE WAS THE FIRST RAIL ROLLED?<br />
S1a,-In your paper of last wselt-" Visits to the Provinces,<br />
Mertbyr and its Ironworks "-you state, "The first rails made in<br />
Englaod or Wales were 10lled at Penydarran."<br />
In this you have been misinformed, && tbe first rail ever mado<br />
was at tLe Bedliogton Ironworks, N orthumberland, and from tlese<br />
works a staff of n•en were sent to P enydarran to leach the Welsh·<br />
men to make rails.<br />
Tbe Ta.ff Vale Woru, now belonging to Mr. Folbergill, were<br />
established solely for rail rolling, and to these works a staff of<br />
Bedlington men were also sent.<br />
WILLIA¥ S. LoNO&lDOil.<br />
Aldermasley Ironworks, Ambergate,<br />
Derbyshire, 1st <strong>December</strong>, <strong>1865</strong>.<br />
SUGAR MACHINERY.<br />
BY N. P. Boaoa.<br />
f Concluded.]<br />
Colonial Factoriu.-The arrangement of machinery for manufacturing<br />
purposes forms an important branch of the several duties of<br />
the engineer or architect. To lay down a rule, however, is,<br />
perhaps, as great an error as carelessneaa of distribution ; tbe main<br />
!aoiB to be considered generally, are arrangement auiatim, wit h<br />
access for repair, while, at the same time, an inequality of space<br />
should not be permitted. The several duties oC tbe empfoyll in each<br />
department will, to a great extent, regulate the room nquired. To<br />
exemplify this fact will be to r on through the several operattons. First,<br />
the steam b_as to be raised; ample room must, therefore, be allowed for<br />
U1e stokers, fuel, &o. A general length for the stoke-bole is twice<br />
that or tbe fire-bars; thus 12ft. may be considered a.n universal length<br />
frC\m the boiler front, space for the fuel inclusive. '!'he p•ocees or<br />
manufacture actually commences in the crushing room ; the main<br />
point to be considered in tbis department la length at right aDgles<br />
with the rolJs, for tbe transit of the cane and megass; enough space<br />
should be allowed at the megass end of the mill for the drainage of<br />
the or119hed cane. In some instances a separate r oom is preferable<br />
for this latter operation. I n the event of repair or renewal of any<br />
portion of the engine or mill, space mw;t. be given for that without<br />
necessitating the removal of any walls or partitions. The process of<br />
olarifica\ion nest en6uea. In this portion of tbe several branches<br />
!here are two modes of attaining the same result-the primitive<br />
tache and the battery-both of wbiob are heated by the fire from<br />
the boiler flues. The next, tbe modern steam clarifier, whiob latter<br />
is rapidly being used in preference to any other kind. The apace<br />
rEquired ill this case will depend on the diameter and 11umber of<br />
tbe vessels required-aol!icient room for repair and removal must be<br />
duly con6idered. After the liquor leaves the clarifier it JliBSee<br />
through the bag filter-which latter, by the way, should be d1reotly<br />
under the former; room ia here required for emptying the bags, r e<br />
moving the scum, stowage of bags, washing the same, and divers<br />
other necessary operations. The boiling of the liquor must nex~ be<br />
noticed :-Tbt:J pans for this procees are either tbe open pan or tbe<br />
well-known vacuum pan. With the adoption of either, apace must<br />
be allowed to pus arouud them; all joi niB and connections muet be<br />
accessible, a.od the apace under the pans should not be cramped, as<br />
the discharge valve must be readily accessible for repair, &:c. Tanks<br />
are provided for the liquor, both from tbe bag filters and boiling<br />
pans; the locality of tbue tanks is generally above and below tbe<br />
fioor line, steam lilte or "mount juices," being used for the elevation<br />
of the liquor where so requlrea. Tbe liquor alter boiling fiows<br />
from the pan into a tank underneath the same. A tank elevated<br />
next receives the liquor, which now undergoes & second proc8bs of<br />
filtering through antmal charcoal. The vessels now alluded to are<br />
deep and cylindrical in shape, closed &t the bottom end. A manhole<br />
is located at the aide, level with a false bottom; these filters Jut<br />
for a considerable time, and it is not an uncommon occurrence to<br />
erect them in separate portions at their destination, rather than<br />
convey them entire thereto. Tbo requisite amou11t of r oom required<br />
is, for Ule removal of the charcoal on tbe ground Boor, and a platform<br />
for the supply. Wheu the filters are arranged in rows, or opposite<br />
each other, the man-boles should face each other, so that one<br />
pa.ssage will suffice. With reference to removiug the dlters, this<br />
operation is generally similar to their erection.<br />
The granulation of the liquor may be said to be the most important<br />
of all the processes-not but what all r equire attention; ye~ iu a.<br />
commercial point of view, the grain of the sugar reguates 11.8 value.<br />
Tbe proce6S now under notice is carried out in open pans or vacuum<br />
pans, the latter being the better. '!'be ouly cause for the introduction<br />
of the former is economy of outlay- indeed, eo much ill the<br />
commercial element considered that, in some cases, tbe common<br />
tache is still erected. The rewarks applicable to the boiling process<br />
will afply in the present case as far as space is concerned. The<br />
oeotrifuga room should be ample in length and widtb, and as our<br />
to tbe granulatiog room as possible.<br />
In the event of loaf sugar being made, the ato'\'e should be in<br />
connection with the mould room, on the same level if possible.<br />
The revivification oC the animal charcoal being a separate process,<br />
the introduction of the furnace or machinery for that purpose is not<br />
required in the present description of the necessary arrangement.<br />
Should, however, it be req.1isite, or deemed desirable as an adjunct<br />
to the whole, it may be added that, within the precincts of the<br />
boiler-house, or a building common lo both, will be & good arrangement.<br />
With reference to the stores, offices, and dwellingP 1<br />
localilr will<br />
be the beat guide. Ono fact should alwaye be deemed imperativethe<br />
importance of a good au_pply of water, without wbicb no factory<br />
can be termed complete. N ow, with relation to the bu_ildioga, much<br />
depends on the nature of the produce of the country applioaiJle for<br />
that purpose. Architecture is generally the last coosideration of<br />
the p lanter in relation to sugar factories; bere and tbere may be<br />
found those who pay a little attention to the finish of tbe exterior.<br />
The great product~ of the sugar colonies is wood. Bricks &re made<br />
of the miner&! local produce, and dried in the sun. In some<br />
instances the uterior walls of the houses are of wooden structure;<br />
while iD other casee the Dative bricks are ueed. The roofs of the<br />
buildings are sometimes ftat, according, of course, to the width or<br />
space between tbe walla. Ventilating openings should always be<br />
attended to, as the surcharged state of the ste&m or heated air acta<br />
destructively on the roofing, partitions, &o. The windows of<br />
colonial factories are, in most oases, simply OD the Venetian prin·<br />
oiple, with framea to open and close. Glass is but little used, due to<br />
the cost of traneit and liabtlity of the commodlty_to fracture-to say<br />
nothing of the effect of the rays of the suo.<br />
Area of space not being of much consideralion in the coloniesor<br />
, rather, on sugar estate&-iL is the common practice to adhere to<br />
one storey ouly for sugar factories.<br />
R1ised platforms are, of<br />
course, obligatory for the vacuum pan, clari!!ers, tank•, &c. ; but<br />
as much of tbe plant as possible ia on the ground ftoor. Tbe<br />
labour of climbing is, by this arrangement, much lea~ened, in<br />
proportion to houses from eight to ten storeys high. Tbe pro·<br />
cess of manufacture, however, is not eo direct with ground·floor<br />
buildings as w i~b those of a plurality of fioora. Another patent<br />
reason too may be quoted as the ca06e for low.buildings, i.e., economy<br />
of strnoture.<br />
Attention will now be given to some of the existing examples of<br />
arrangement. In one inatance tbat the writer is acquainted with, the<br />
sugar mill, engine, and bower a relocated in one compartment, square<br />
in plan. Presuming it. J.o be on the left band the otari6era are on t.<br />
raised plaUorm directly inside the next room on the right hand; the<br />
bag filters are on the ground fl?or, directly under ibe olari6ers ; the<br />
liquor Bows from the dlters into a reccEsed tank. In th~ place of<br />
open boiling pans vacuum vessels &re used bo~h for first bo1hng and<br />
granulatiog. These pans are located at tbe 111de of the wall D€arest<br />
tbe observer in plan, midway of the lenstb of the compari!Deot.<br />
The vacnum pumps and steam engine are on the left;-baud s1de of<br />
the raised platform. 'l'be charcoal filters are oppo61te. the pens,<br />
with the receiving tank eleva.ted on be~ms al:!d pe~peod1 cula r ~upports.<br />
The centrifugal room 18 at the nght-~and s1de, but prO)PCIB<br />
from the line of the buildiog. The mould itove 11 at the end or the I a n<br />
room. The main steam boilers are situated oppo~ite tba~ for tbe<br />
mill engine, at right angles with the same. The room last 1~ question<br />
is an extenSiOn tbrougbout the leugtb Of the whole, With the<br />
charcoal furnace &t the eJttremity. Doora and w.iod_owa are, _of<br />
course suitably arranged bol h for acce&s and veolllat10n. lt will<br />
thtlB b~ understood that the raised platforms r equir~d are, o~ly tb~e<br />
for the clarifiers and vacuum pans. T~ proce .. s,. 1.n fact, IS carr1~<br />
ont on terra jirmfl almost;,. toto. Alloiber dispo~111on of tbe ~et~tla<br />
consists of tbe entire portion being under one roof, the bull~mg<br />
being a long structure, with. aide aod end wa~ls o~ly; tbe boilers<br />
are at the end oC the build1ng, t!wlfront fac1ug 1n~ards. ~u t,<br />
the sugar-caue mill, engine, and laoll; are located 10 a Sollable<br />
manner· alter which the clarifiers and bag filtera. Two vacuum<br />
pans- the one for boiling, and the other for graoulatiou - are<br />
next in rotative arrangement. The charcoal fi_lters are located on<br />
eaoh side of the bu.ilding, eo that t.free ~pace 1B between the rows.<br />
The centrifugal machines are on ono etde beyond the filter~, and<br />
the moulds oppositely situated, the stove ~in_g at the extremity of<br />
the building. Suob an. arrangement as .tb1s 1s, perh~~· tb.e mo~t<br />
direct that can be cooce1ved, but thelocahty of the bu1ldtng 1lbelf !8<br />
the principal guide in all cases. Tbe illostration ~ompanyiog tblB<br />
article, represents a colonial faot.ory for productog m.ou;t s~g.ar.<br />
The additional room for the loaf sugar can be added, 11 requtstte,<br />
beyond the machine-room, but is not d~mande.datpre_s~nt. Much ol ~be<br />
maobioery herein depicted has been e~o~o 10 det;a1l1n the preced10g<br />
pages of tbis j o ~rnal, ben~ a descnp~t~e alluston t~ the arrang~<br />
ment of dispositJon per 1e 1B only requt11te. The botlers-tiJ.ree 1n<br />
number-are of the ordinary Cornibll l.ind, properly fitted "!1th all<br />
the requisite detaila. The donkey engine at tbe front eupphea ~be<br />
feed-water in the event of a rupture or stoppage of tbe mtlleDgioe<br />
pump; the animal charcoal rovol ving cylinders are of ~be<br />
ordinary kind, locat~d opposite the boil~r froo1 1<br />
ampl~ room ~mg<br />
allowed for repair and renewal of matenal. T.oe eogtne, geanog,<br />
framing, and mill, need no comment, with the _exception tbat th~t r<br />
position hAS been duly considered. The room ID front of the m tU<br />
can be either used as & draining room for t he megiiBe. or as ~n<br />
engineer's store-in fact, t~pace is allowed ~or both. Tbere ts a_ce~ ta1n<br />
objection to stowing the megau 1rith111 undetaobed butldtngs,<br />
due to the fact that the crushed cane ia rather combn~>tiiJio alter a<br />
given time. Present space, howtver, will no. P . ' ~ of further entering<br />
into this matter, but a luoid • ccount 1e gtven by Henry<br />
Mitobell, EPq., M.D. (CJf Tri:.idad), in a paper in the" Sooil'ty of Arts'<br />
Journal," Nov. 11, 1864, which is well worthy of perusal. The<br />
receiving tauk is not sbowu. It is supported in the mill roo~ by<br />
trussed wooden beams, soflicienUy bigh to allow a ready drip 1nto<br />
the clari.fiere. These latter are shown in a separate room; underneath<br />
are the bag filtera, scum trough, and tank. Tbe ta.nks 688D in<br />
the outaide angle of the stove or megass room . are two '.n number,<br />
direclly over each other. The lower tank r ecetves tLe hquor from<br />
the bag filters; the higher from tbe boil~o~ !~cuum pan, and<br />
from thence to the charcoal filters,; whose dts~sthon need no description.<br />
Tbe vacuum pane a;e elevat~ on a suttable platform; the<br />
engines and vacuum pumps be1ng oppo11tely arranged. Tbe graonlaung<br />
pan is supplied from the tank outside the charcoal fil~ r<br />
room. After tbe boiling procesa ls complete tbe sugar, io a semlliqu.id<br />
state, is received i.oto the b_eaters (or coolers, .as tb~ _caae may<br />
rtqoire) i.o the centrilngal macbtno room. The dtspo tllon of tbe<br />
details in this laslrmeotioned department can be rudtly u nderstood.<br />
The roofs are double pitched at fair angles; venttlators are introduced<br />
over the clarifiers and elsewhere; each portion of the<br />
plant caD be r emoved without disturbing that adjoiuing; tbe pipes<br />
are arranged with care aa to economy of lengtb and repair; the<br />
" mount juice" is perfectly aoo&Aible, eo le the condensing box. ~be<br />
remaining details can be resdily u.odt:Jr..tood, so that further allueton<br />
will be super.6uoua. In conclu&ion, the writer would impreu on the<br />
profession generally that no clase of mecha.oism is more worthy of<br />
scientific attention than sugar machinery .<br />
AnlOlULTY Rzroax.-We have reason to believe that Mr. Seely<br />
has during tbe receea followed up hie investigations into Admiralty<br />
accounts and other matters, and that the questio.o of Admiralty<br />
Reform will again be brought before the H ouse.<br />
Tu Melropolitan Sanitary Auociation intend to bold their first<br />
wnference meeting on Tbursdt.y evening, <strong>December</strong> 14tb, at the<br />
rooms of the Society of Art!, J obn-street, Adelpbi.<br />
Thomas<br />
Chambers, Eeq., Q. 0., M.P., lue ool:leented to preside, and Dr.<br />
Draiu, Pruidt'ot of the Associatton of Medical Officers of Health of<br />
tbe Metropolis, will deliver &n addret.S on "Tbo Defeota in the<br />
Existing Sanitary Laws, with Snggeettons for their Amendment;"<br />
&Iter wbicb discussion on the snbj ~:ot will be invited.<br />
TIIA.DB OF New BaoNSWIOK.- The annual report of tbe Comptroller<br />
of New Brunswick ebowa that the imports last year were v. Jued at<br />
8,9!6,852 dole., and tbe exports at 6,063,89i dols. New Brunswick<br />
trades w ith almost every country. The large6t trade is done with<br />
Great Britain, to which she last year exported goods to tiJe value of<br />
2,132,738 dole., not including ehipe, and importtd from the Uuited<br />
Kingdom to the extent of 3,~98,125 dole. TIJe trade witb the Uoited<br />
States is second in extent and value. Last year New Brunswick<br />
exported good& amouuting to 1.266,148 dole., and imporwd ~oods to<br />
the extent of 8,alG,824 dole. Nova Scotia. comes third. Ezported<br />
last year 556,9l4 dole., and imported 1,860,842 dole. Ezporta to<br />
Oaoada 60,004 dole. ; imports from thence, 245,020 dole. Expnrts to<br />
Prince Edward's lsland, 112,728 doiiJ.; imports from tbanCf', 85,261<br />
n L iverpool<br />
and Birkenhead under tbt~ river Mer,ey. Mr. E. Lawrence.<br />
ex- mayor, presided. Sir Charles Fox e.a:plained tba ~ tbe principle<br />
of & pneumatic railway bad been aucceeefully tried on a h.rge scale<br />
a t Sydenbam, and one was now being ooo,truoted under the bed of<br />
tbe Tbamea, bel weeo Obariog Oroes and tbe Waterloo station. The<br />
proposed railway from Liverpool to Bilkenbead was a mile and<br />
three-eighths in length. There would \16 two stations in Liverpool<br />
and one at B io ken bead. The cost was eatimated at £ 300,000, with<br />
borrowing pow4'ra to raise tbe capttal to £400,000. Tb1s estimated<br />
cost would, however, be much reduced if tbe bed of tbe rtver were<br />
found to consist o f r ock illst.ead of quicksands. It was estimated<br />
that on £800,000 the traffic would produce .£30,000 a year, to pay a 6<br />
per cent.. dividend, and £1(),000 for working expenses. The •peed<br />
would be at the rate of 20 miles an hour, a ud each train fur goods and<br />
passengers could carry at least 600 pa88engert~,<br />
wbo would be<br />
cbarged Bd., 2d., and ld., according to olaas. ln answer to numorous<br />
questions it was explained that there wonld be DO d.anger ol collision,<br />
and the carriages, lnuriant and well lighted, would always be in<br />
plenty of fresb air. It waa t.1eo explained that no oppositton from<br />
"vested intere&LS" on either aide of the llersey was anticipated.<br />
Ultimately a vote of tbanka to Sir Obarlel Fox wu woved by Mr.<br />
R obertson Glacl.stone, seoondod by Mr. Rarold L itUedale, and<br />
carried unanimously, several genllemen resident on bo~h aides of the<br />
r iver expreeeiog their high approval of the eobeme •
372 ~ THE ENGINEER. DEc 8, <strong>1865</strong>.<br />
P L A N 0 F A 0 0 L 0 N I A L S U G A R F A 0 T 0 R Y.<br />
•
DEc. 8, <strong>1865</strong>. THE ENGINEER. 37:3<br />
~====~========================~======~==========~~==~~~~--<br />
side. They remind us of the old explanation of the creation<br />
of the universe-tTcome it quite po1rible ; but tvtn though t~try mec/w,<br />
nicaL objection to the U&t of Uquld fu,tl '1/Jtre 1111ept a.VJav to-morrow, there<br />
'IDOUid ltill rtmain. the Ql'tal fatt that ptlroleum a• fueL i1 mormo111ly dtnrf"<br />
tha.n. coal. 0Me alltr lhu condition of offai r~, and none ~~nil admit the good<br />
qualitiu of liquid /uti, 1uch a.& they a1·e, more c!.urfuUy than. our1dvu.<br />
MEETINGS NEXT WEEK.<br />
hi&TITOTION 0!' CI VIL ENOI!IURS.-Tuesday, D ecember 12th, at 8 p.m :<br />
"Experiments on tbe Strength of Cement, chiefty in reference to the Port.<br />
laod Cement Wled In the Southern Main Dnunage Works," by John Grant,<br />
H . Inet. C.E.<br />
SOoiKTY OF ENOINURS.-.Monday, <strong>December</strong> 11, Annual Oeneral Meeting.<br />
CIVIL AND !IIICIUNIO.U. ENOHIBKR8' SOCIII1'Y.-Wedne>day, <strong>December</strong> 13,<br />
at S p.m., "On OratLOn and J ooes' Coal-cutting Me.cblnos," by Hr.<br />
B a.seloco.<br />
ddoertuement1 ctlnnot be guaranteed inurtion un.ttu delivered bejore ltvtn<br />
o'clock on. Thunda.y tvtmng in. eaeh week. 1'ht charge for four tlntl a.ncl<br />
under i1 thru •hilling•: each /irttafttrward&, eightpenct. The lint average~<br />
tiglu word•: btoc.b a.re charged tht 1amt rau for the ~pace they ftll. All<br />
&ingle a.duerti1tmtn.l1 from the country nlU&t be aceompa.nitd by lta.nlpl in<br />
payment.<br />
To:a ENOlNUR. ca.n be h11
374<br />
THE E NGINEER.<br />
DEc. 8, <strong>1865</strong>.<br />
on the indications or gauge cocks-well known, especiallr.<br />
with such a pre .. u•e as nearly 60 lb., to be Yery deceitfu.<br />
On opening one of these taps, with t he attendant r emoval<br />
of the prl'S ure, there is an instantaneous rush of water<br />
t owards the spot, upon which it issues fr om the tap, falsifying<br />
the i'ldication, and tlctitiouslr raising the water<br />
leveL Or the hot water, in issuing 1nto the at mosphere,<br />
Mcessarily develops into steam, forming a deceitful spray.<br />
T hese things are, or ought to be, very well known, and it<br />
seems incredible that they should have to be r epeated<br />
A nno D omini <strong>1865</strong>. An only somewhat leas injurioua<br />
omis ion wna that of t he prestonre gauge. It is always<br />
important, na one scarcely need be r eminded, to be able to<br />
check the indications of the safety-valve lever by a pressur e<br />
gauge.<br />
The next inq airy to be made in the cnae of any disaster<br />
o t the kind is na to the way in which the ' boiler wna kept<br />
-whether it was subj ected to periodical skilled inspection.<br />
Care of this kind does not aeem to have been been exercised.<br />
One of the workmen at the Abercarn Tin Works, a hammer-man,<br />
who narrowly escaped being k illed while<br />
"standing alongside of the boiler," stated at the inquest,<br />
he" had heard men complain that the boiler was not safe,<br />
" or that they did not like the boiler.'' It seems that" the<br />
"principal cause of complaint was that the boiler would<br />
11<br />
sometimes spring a leak." Remembering t!olat a brick<br />
partition ran along the whole length of the boiler, it can<br />
be easily imagined what injurious effects a leakage of corr<br />
osive concentrated water would have on the plates.<br />
Another si~nificant fact, evidently stated without anim\l.tl<br />
by this wltnt!ss, but strongly testifying to the parsimonious<br />
way in which the works were carried on, was<br />
that " the reason the works were not pot on that day till<br />
'' six o'clock in the evening was owing to the high wind,<br />
" the men being afraid of the roof falling.'' Another<br />
witness, a puddler, said that he bad " been afraid to work<br />
" there on account of this boiler, which was so ofLen out<br />
' ' of repair; it so often leaked" Even the man in charge<br />
told this witness, about five weeks ago, that " he was<br />
11<br />
a lmost afraid of it himself.'' At about that time the<br />
boiler had bad to be stopped, " hecauae they could not keep<br />
" water in it." In cross-examination by the solicitor of<br />
t he proprietors, be aaid that-" Once after the boiler bad<br />
" been r epaired and put back again, it was found that it<br />
" could not keep the water in;" in fact, "ther e had been<br />
"a small leaka'-e at the damper all along." Yet another<br />
witness said-" fbere was a leak in No. 3 boiler, which I<br />
11<br />
worked near." He had been" working by that boiler<br />
"about a week, and a leak had been there the whole of<br />
" the t ime."<br />
lt is thus apparent that the boiler was of, to say the<br />
least, inferior con;.truction-tbat it was unprovided with a<br />
g lass gauge or a float for the water-level, and with a steam<br />
gauge for the pressure-that it was worked without<br />
periodical inspection, and in a leaky aod therefore dangerous<br />
state. It is now to be inquired what were the probable<br />
pressure of the &team and the probable level of the water?<br />
l t. appears t~at the engine '_Vas not at work for twenty<br />
mmutes prev1ous to the explos1on. There was thus necessarily<br />
an accumulation of steam in the boiler. But we do<br />
not think th&.t this ro e to a dangerous pitch ; for, in the first<br />
place, this boiler was con nected with three others, and each<br />
had a pair of safety valves, all o~ wh~ch cou.ld scarcely ha~e<br />
stuck at one and the same ttme 10 the1r seats. It 1s,<br />
i~dce d, probable that they were blowing off, and that a<br />
h1gher pressure was reached than when the engine was<br />
being driven. But this would have no other effect than<br />
searching out a weak par t in any of tbe boilers ; and<br />
if an u udue prel!sure be taken as the cause, there<br />
is no good reason that all the communicating<br />
boilers d1d not burst. As to the level of the water, we<br />
hold that there was an ample supply. The engine driver<br />
at the A bercarn Tin Works was very explicit in this part<br />
of his evidence. On coming to the works before starting<br />
t he machinery be found No. 1 boiler heavy in the<br />
top cock, No. 2 in the top, No. 3 heavy in the Eecond<br />
cock, also No. 4 in the second cock. Said be :- 11 1 kept<br />
"the engine on till I got the fou r boilers full to the top<br />
"cock. When they were working on the fours tbev<br />
u 'stalled' the engine. ' Stalling' the engine means that<br />
"the steam is too weak to carry on the work. I let the<br />
"engine stop for about ten minutes. I went round the<br />
"boilers to try the water in them. I found No. 4 getting<br />
"light in the top cock; No. 6 rather heavy. I closed No.<br />
"3 ' ram' a little to let the water go to No. 4. boiler. Nos.<br />
" 1 and 2 wert: all right in the top cocks, with sufficient<br />
"water and over." About ten minutes after wa r dt~, the<br />
boiler exploded. It thus appears that there was sufficient<br />
water, and this portion of the evidence shows as clearly<br />
the r ough and unsatisfactory way employed for getting a<br />
notion of the height of the water.<br />
Such being the state of things immediately before the<br />
explo:.ion, we will now examine its results on the boiler<br />
itself and the adjacent objects. The shell of the boiler was<br />
in no way damaged, uod it is thus evident that it<br />
gave way at the flue. This is indeed completely<br />
collapsed. The nJO t injured and collapsed par t is about<br />
seven feet from one or the ends. The most distinct<br />
indication that the collapse did not arise from the tube<br />
getting r ed-hot is to be seen in the form taken by tbe tube<br />
at the part which evidently gave way first. It yielded at<br />
the side and not at the top. A witness standing alongside<br />
the boiler beard a his&ing, "for about a second, just as if<br />
it had sprung a leek." "lt made a hissing noise, and then a<br />
load report in ita full force.'' An outlet from a boiler which<br />
can spread in extent, a rent which can tear with a resulting<br />
outflow of steam and hot water, is indeed an incipient<br />
explo!!ioo. A leak first takes place, it extends, a<br />
wider rent is caused, a progressive action ensues, and at<br />
1 ast such un ir.jury of the structure is produced as to let<br />
out a de&tructive amount of steam and hot water. J n this<br />
case the tubular flue was a mon&ter piece of ordnance,<br />
out of which were projected the bricks forming<br />
the partition, accompanied w11h the steam and bot water. l t<br />
was in fa.ct a large gun loaded with bricks. The puddling<br />
f~maces at ~ach end of the boiler, and consequently in the<br />
lme of the d.i.ecb&rge,\wer e \blown to pieces, tbe molten iron<br />
and the materials of the furnaces bein~ scattered in all<br />
directions. The ~rcat ruulting destruction of, and injury<br />
to, life is thus easily explained.<br />
To t race the explosion to its originating cause is thus easy.<br />
Not being stayed with rings, the flue was inherently weak<br />
under the external pressure. It may, or may not have been<br />
injured in the abaence of a glass gauge, by the water getting<br />
too low on previoos occasions. But we think it more probable<br />
that the plates at the leak or leaks got more or less<br />
corroded, until at last the leak extended to a rent, the rent<br />
to a part ial collapse, and that this par tial collapse continually<br />
increased-as indeed a collapse necessarily most under<br />
the ever-present pressure. We are curious to know<br />
wbt>ther, under these circumstances, the jor7 will return<br />
t he usual verdict of "accidental death," w1th a recommendation<br />
to Messrs Whitehouse and Pbillips, " t o for the<br />
future use glass gauges on their steam boilers.''<br />
SAND-BOXES FOR LOCOMOTIVES.<br />
CONSIDERABLE diversity of opinion exists among engineers<br />
as to the r eal value of sand as an expedient for<br />
increasing the adhesion of locomotive engines. One<br />
superintendent pins his faith on it with a determination<br />
which r efoses to be -npset by the most apparently convincing<br />
arguments against its use. Another believes that<br />
the employment of sand is objectionable in the highest<br />
degree; that it ener8etically promotes the destruction of<br />
tires and rails; that, 10 wet weather 1t cannot be induced<br />
to leave the delivery pipe in an even stream, without the<br />
greatest trouble; that it leads to the fracture of crank<br />
axles; that it increases train resistance; that, in dry and<br />
windy weather, it is blown on to the guide bars and link<br />
motion to their ruin ; and that, in short, its use is accompanied<br />
by an amount of vexation and mental worry which<br />
is but inditferenlly atoned for by a am~ll increase in the<br />
co-efficient of adhesion. There is, no doubt, much force in<br />
these objections.<br />
N everthdess, those who advocate the<br />
free use of sand h:>.ve by far the best of the controversy.<br />
In point of fact, sand is a necessity in our climate, and<br />
even those who are most opposed t o its use cannot get on<br />
without it. They use it, as it were, grudo-ingly and under<br />
protest, and in this fact alone possibly 1ies the cause of<br />
their dissatisfaction.<br />
It is not too much to say that a really good sanding<br />
apparatus has yet to be invented, and it is certain that,<br />
once placed at our disposal, nearly if not quite all the<br />
objections to the use of the expedient will disappear. So<br />
long as locomotive superintendents are satillfied to stick on<br />
a cubical wooden or iron box anywhere on the side frame;<br />
to fill it with damp, unsifted sand; and to regulate the<br />
distribution of this on the rails by eending the tireman to<br />
drop it in handsfol down a 1 ~i n. gas pipe, terminating,<br />
pos!tibly, 6 in. or Sin. in advance of the point of contact of<br />
the wheel with the rail, it is not to be expected that the<br />
r l'sults obtained will be very charming. When a pair of heavy<br />
drivers, spinning rapidly, are brought-up, to use the sailor's<br />
phrase, with a round turn by tht: application of sand to<br />
one rail only, a tremendous torsional ~otrain is as a matter<br />
of course thrown upon the crank-shaft; and if the process<br />
be often repeated a break-down is very likely indeed to<br />
ensue. So long na a rail is sanded by hand the distribution<br />
is certain to be irregular; tbe sand lies on the rail in<br />
patches, between which slip takes place, and it is quite<br />
possible that some of it may be blown into the motion, or<br />
that train resistnoco may be increased. ·with a moderately<br />
good self-acting apparatus, on the contrary, the sand would<br />
be distributed 10 a very fine and even stream, within an<br />
inch of the spot where it was required, beneath both drivers,<br />
and the shaft would be spared abnormal straius. An<br />
approximately perfect apparatus is still absent, but there<br />
are, nevertheless, many good sand boxes in daily use,<br />
especially in America. Strange as it may seem, the entire<br />
question present& several difficulties notwithstanding its<br />
apparent simplicity. Wet sand clogs na a matter of course,<br />
and refuses to flow of its own accord under the influence of<br />
gravity. On the other hand, sand well dried flows freely<br />
enou~h, bot on coming into contact with a round-beaded<br />
rail 1t at once falls off, powderitJg the ballast very nicely,<br />
and altogether failing to answer its intended purpo6e 10<br />
dry or moderately dry weather, and when the wind is<br />
very high, beiog swept from the iron as effectually<br />
na though the sweeping were done with a broom. Sand<br />
must not therefore be too dry- at lenat as sand pipes<br />
are now fi tted-and many expedients have been employed<br />
to persuade it to leave its box when damp. One of the<br />
best of these is an Archimedian screw, t he r evolution of<br />
which by the engine-driver propels the sand towards an<br />
horizo nt~~ol :>.p~rtur·e in the side of the containing receptacle,<br />
connected with which is the pipe leading to tbe rail. Sometimes<br />
the screw merely bor es a hole or tunnel through the<br />
damp mass, which refu ses to fall in on its thread; and<br />
thus at the moment the sand is most rtquired its aid is<br />
unattainable. Besides, there is a certain amount of complexity<br />
in the entire affair, and its use is likely to distract<br />
the a ttention of those in charge of the engine trom signals,<br />
and so may possibly tend t o induce an aeeds are now sown by the aid of the drill, and<br />
it is essential that even in windy weather these should be<br />
deposited exactly in the little furrow and not blown away<br />
over the surface of the soil. Two wings are fitted, one at<br />
each side of the coulter, therefore, which effectually shelter<br />
the orifice of the dilicharge pipe leading from the &eed<br />
rel!ervoir. '!'here is no r eason whatever why a modification<br />
of this idea should not be appliec! in the cru.e of the locomotive<br />
with direct benefit. P late iron guards extending<br />
Lack at each side of the wheel aa far at least as the verttcalline,<br />
might be made to embrace it as it were, and by<br />
extending down as low as the upper edge of the rail-they<br />
might be brought lower but for the crob11ings-to effectually<br />
exclude mischievous currents of air. The pipe, too, if the sand<br />
were quite dry, might be flatt('ncd ne:~r the end so as to bring<br />
it.l! mouth much nearer the point of coata
0<br />
DEc. 8, <strong>1865</strong>.<br />
•<br />
tHE :gNGINEEl-t<br />
•<br />
375<br />
0<br />
THE PATE NT J OURNAL.<br />
Condemed from the J ournal of the Commiuiontrl of Palmt.l.<br />
Grants of Provisional Protection for Six Months.<br />
1894. WtLtlUl L' PIIN?'NEtUI, Esscx-~treet, Strand, London, " I mpro,·e.<br />
monts In br~ech-loadtng fire aru o~, and In the charJ:ell and proje c~lles to<br />
be u•ed tberew1~b.''-Petitson recorded 20th July, 1811.'l.<br />
1982. JouN D I~RY JOUNSO!I, Lincoln'•·iuu-tlelds, Lo11don, "A new or improv~d<br />
dete rgeu~ solu~lou to be used In the wa.;bing or cleausiug of wool<br />
and woollen tabrics. "-A commuoica~lon from Charles Dyonise Relnleld,<br />
Pari•. -Petotion rtco-rdtd 25th Jv.ly, <strong>1865</strong>.<br />
209S. WtLttAM BlllTS, Wbo.rf·rotld, City-road, London, "Improvement8 in<br />
the ma.nufacture of CO.J)bules."-Pdotacm recordtci 12th .Avgeut, 1866.<br />
2106. JoUN BINRY J OONSON, Lincoln's·inn-Helds, London, ·• !mprovement8<br />
!u ~he vreparation or production of spongy metal~ and in their anpllcatlons."-<br />
A communication from Francob Drivet, 'l'Uriu, ltaly.-Pdition<br />
reco-rdtd 16th .AuguBt, <strong>1865</strong>.<br />
2391. JonN BESRT JODN80N, Lincoln'•-inn-Helds, Lonllon, "lmpi'O'\•oments<br />
In railway carriageS and o~ber veblcles."-A communh:atlou from Henry<br />
Hud ~ou Trenor, tbire "Improvements in the manuf~~.eture of ordnance,<br />
wbole or m par~. "-Pthtion rtoo>·dtd SOtll October, <strong>1865</strong>.<br />
2809. EnWIN AJ>DlBON .PutLLtPS, Sou~bamptoo-buildings , Chancery-lane,<br />
London, "Improve mentTLT, Upper BJker-stre e~, .Re£ont'8 Park, London,<br />
•• l mpruvemeot• in ob~inlng fresh water from salt and Impure water<br />
also applicable for ventilating purposes."<br />
2955. Jow B&NRY S:lltTII and GliOI\01 RoBIIRT SlllTD, We6t Plumat&d,<br />
Kent., "An Improved wetbod of draugbtlng I!M~erna for C06te, wal· tcG.lts,<br />
and other close-6t~ing garmeo~. aod appara~us to be n.sed in obtaining<br />
the measuremen~ for the same.''<br />
2956. WU.L!Ait Blli RY COPll, Bostock·street, St. George's-ln-th&-East,<br />
London, ·• An improved mo.cb.ioe for taking off tbe fibre from oott.on eeed<br />
and cleaning it."<br />
296i. GKOKGI CARTER, Willeobu.H, Staffordsbire, "Impronll18nts In the<br />
manufacture of bevelled or convex i.ron w:t.Sbers, and in machinery to be<br />
employed in the Raid manufacture. •·<br />
2958. Jo&&PEI IWCK CooP&R, Birmingham, "Improvements in breech-loading<br />
Ore-arm~.''<br />
29&9. TuoMaS JOSIIPS PliRRY, Bigb6eld.s, near Bilstoo, Statfordabire. " Improvemeo~<br />
me~llic wheel~."<br />
in macb1nery for the manufacture of moulds for cas~ing<br />
2960. Wn.ttAJI Ct.ARK, Chancery-lane, London, "Improvements ln knlt.<br />
ting-mncbl~oe neeoles."-A communication from h nac Wixom Lamb,<br />
Roche•ter, New York, US.<br />
2961. RtCDARD AROOIBALn BROOIIAN, Fleet-street, London, "Improvement•<br />
in the lllDnuracture of sbawls.''- A communication from Pierre Honorf<br />
Maillard, Paris.<br />
2963. TUOliUS MAXWitL 'IENNA.XT, Edinburgh, N.B., " Improvements In<br />
furnaces"<br />
2964. \\ lLLlAll EDWAR.D NIWTO!f, Chancery-lane, London," An Improved<br />
process ror bardcni.og malleable aud uon-malltable cast iron.''-A oommuoica<br />
tion from Thomas Henry Jenkloe, New York, U.S.<br />
2965. JAJt!S IIARB!RT, Kldderminster, Worcesterabire, " Jmprovements in<br />
the production or manufacture or gas for heating or illuminating, and In<br />
tbe retona aod apparo.tus employed 1n eucb manufacture."<br />
2961. LO ITIS GONZAOOII SPSTSISR, l>t. Maure-les·FOl!~6i, Pari~, " Improvemen~<br />
in the manufacture of bricks or building blocks."<br />
21168. WALTER PAYTON, Sewardst.one-road, Victoria Park, Middlesex," Improvements<br />
in means or apparatus for measurin~t tbo passage or tlow of<br />
liqu1ds, for raisi •·g and forcint fluids, and for ob~imog motive power,<br />
also in means ror the manufacture of part8 of such apparatus. "- Pctitio!u<br />
1'«trrded 17th N~ uembt1', <strong>1865</strong>.<br />
2971. SA!ol OliL HAZARD Ho~TLY, Upper Blker street, Regoot'8 Po.rk,<br />
London. ·• I mprovem en~ in cookio~t arpara~u~."<br />
2974. !iJL'(RY Ct.ltTO~. Queen's Hotel, St. Ma.rtln's-le.Grand, London." Improvement•<br />
lusewi.n" macbines."-Partly a communication from Gcorge<br />
Snieder, Vack•hur,::, MissLs•ipoi, U.S.<br />
2976. lsuc LAZAROB, Birmingham, " I mprovements in bows or ties for<br />
articles of drees. ''- Pct•tion& rtcf>Td.!d 18th N01111mbtr, <strong>1865</strong>.<br />
2978. ARTUOR RtCK&TT, Birmlnjth~m. •• An improved m.acbine or appara~u<br />
s for clean•ll!( or dre-•~in~t cur ran~~ and otbAr fruita."<br />
2979. JOSKPH BtVKRti!Y F&sBY, B1rmlngbam, "Improvements In f:~Bten -<br />
111118 for sates' doors and other doors and lids, and for other like purpo3es."<br />
29i!V. J Alt!lJI BROOOBTOM EDOI and ENOCB Brn». Bolton, Lancashire,<br />
·• c.,r~ln improvolments in mecbaoi~m or apparatus for •pi.nnlng aod<br />
doubling cotton or other fibrous sub!tanoos"<br />
r9dl. CnARLIIS WBITNXY, Kensinsrtou, Middlesex, "Improvements in<br />
breech· loading ~:uns, and in cortr1dges for breecb-lol\ding gnnB."<br />
2986. GBOROI P UTLASD Hlll(III~O, Wincbester-slreot, llaldon-road,<br />
Keotitlh Town, and Bll:tRY CoYLll, Great Abrylebooe-Btreet, London,<br />
" An improved trap or liquid sealing to the covers of cl.sterns, pane, jars,<br />
tubs, and o~ber ve~els or chambers.''<br />
2987. WILLIA¥ OLAJUi, Cbancery·IMe, London, " Improvements In bleaching<br />
featber8. "-A communication from Adolpbe Pierre Viol and C4ssire<br />
Pierre Ou6ot, Boulevort St. Martin, Paris.<br />
2988. J.All!.il Pa1T, Cleckbea•on Y·•rksbirP, •• Improvements In aewlng m&<br />
chine~."-Pdotion• nc01'dtd 20th Na«n•btf', <strong>1865</strong>.<br />
!989. RJCUAKD W ALTlt88 aud Tu oH AB EDWTB KIIJU W .U."IIIIl, Pel,all,<br />
Swlford•btre, "luoprovemeota In machinery for cutting or abecu-lng ebee~<br />
Iron aucJ o~ber met.nllic ab,ets or plates.''<br />
2990. SAlt OWL 8&N!itST1', .Maocb.ator, " Jmprovomonts In ooak• for &~m .<br />
watA>r, air, anti goJJes at blgb pressures, and al•o In gau ~re coclu and water<br />
RaUJI'es for boilers and aedhnent ~ubea for cocks and pipes."<br />
1991. FlU!lliJUO PoP&, Mark-hoe, London, " I mprovemen ts in locks."-A<br />
communication from WIIUam Hod.aon Uld James Rutson, J anerville,<br />
W ilcolllin, U.S.<br />
209(. OIOROB SlOTH, Upper Tbames-street, Loo don, and GIOllGB SKITB,<br />
jun., and OIU&LII!I WI.LLIAJt SxrTn, Mare-atreet, Haclme7, K lddleaex,<br />
• ' Impronmen~ In hair·bruabJ.na appara~UJ."<br />
290/l. TUOliU.S R!CUAJU)S DARDISO, Leeds," I mprovemeot.5 In the applica·<br />
tioo of pressure ~ the roUeu of epinning, preparin~, and o~her machinery."<br />
2996. ALPRKD Vtlt()UT NBWTON, Chancery-lane, London, "Improvements<br />
io apparatus for condeueiog exbauo5 steam and beating air by the heat<br />
ab6trac\ed 10 tffect1ng the condo."'ll!&~lon or sucb steam. "-A communicat<br />
ion fr•HD Add o~on C~l•in Flelcher, New Yotk, U.S.<br />
2997. WttLLA!IJI PARSOIIS, Toron~-terrae, Clayton, r.e&r<br />
Manchester, " lroproveown~ In appo.ratue for ol.otunlng artldclal Jlgbt<br />
from \'Olatile liquid a or 6 ulds."<br />
8001. ALPR&D Vtl\CIST NrsWTO:s, Chancery-lane, London, "An improvemeM<br />
In ejectora for dlscbargln~ bilge water and for ot her purpo~es.''-A<br />
commu,lcation from Nalhau Letllngwell Cbappell, New York, U.S.<br />
SOu2. SAJtOilL At.&X.U!DIR BllLL, Epplog Villas, Stratford, 12sex, ''An improvement<br />
In the manufacture of 1r1ctlon matches and tapel'l'. ••<br />
3003. WttLIAM BtRT, West Ham, Esstx, " Improved apparatus for efrtctlog<br />
a communication between the passengers of a railway train auo.l the<br />
guard or driver, or both."<br />
3004. SA¥118L B 11STIIR, Newcastle-on-Tyne, "lmprovemeot3 In ancbon.''<br />
::005. ALYIIJI) L.L'IOIU'IELD, Engineera' Departatent, Great Nortberu Rail·<br />
" ay, King's eros~. London, •• ! mpyovement.5 in machinery or apparatus<br />
for stamping or lm rresslng railway or other tickets."<br />
SQ07. JA!IJIII.B J onlf FnlLD, Upper GitJord-atreet, Caledonian-road, London,<br />
•· lroprovement.s in tbo w>lnulacture of •oap."-Ptt1tio!u recorded 22nd<br />
N()'ll(m/H:r, <strong>1865</strong>.<br />
Invention Protected for SU: Montha by the Deposit of a<br />
Complete 8peci1ication.<br />
8013. EB&.'il17.1R GOOD!\OW LA~tsoN, Windsor, Vermont, US.," Certain new<br />
and ubeful improvemenLB In breecb-loadlug and repeatlol!' 6re.arms."-A<br />
commun1ce~lon from Albert Ball, Worcester, Haasacbu.setta, U.S.<br />
Dtpolittd and rewrdtd 2Srd Novtmbt~· , <strong>1865</strong>.<br />
Patents on which the Stamp Duty of £30 has been PaicL<br />
3215. TBO:IIAS W.u.LER, Fish·street-bill, Londou.-Dated lst <strong>December</strong>,<br />
1862.<br />
3188. JAME8 TII~NANT C.&tRD, Greenock, Renlrewsbire, N. B.- Doted 2Stb<br />
November, 1862.<br />
8259. lttCDAIUl J:lolU'SBt', jun., Spit~legale Ironworks, Graotbam, Lincolnshire.-Dal.ed<br />
4tb <strong>December</strong>, 1862.<br />
8326. TnO:IIAS E DWARD VtCKI';II8, Sbetlleld.- Dated lllh Dec~mbe r, 186Z.<br />
3310. S .. UIOSL BINIAltiN \1 EllTFUILD, Birruingbam.-Daleu 10th Oecember,<br />
1862.<br />
32H. G!!ORGB FIATUIRSTOIII GRllPIN, New Adelpbi Cbambera, London.<br />
Du.ted 1st Dec.:mber, 1 86~.<br />
3243. CUARt!.il FRliJlllRtCE CL.AUS, Fearobead, Ltmcasbire.- Dated Srd<br />
<strong>December</strong>, 1862.<br />
S2t9. BBIIRY SWAN,<br />
:Uccember, 1862.<br />
Bishopsgate-atreet Without, Londoo.- Dated ftb<br />
Patents on which the Stamp Dnty of £100 has been Paid.<br />
2964. RtcnA.IUl BoRNSllY, jun., ::;pi~tlegate Ironworks, Grantbam, Lincolnshire.-<br />
Dated 27tb J>ecember 1868. .<br />
2734. JOHN 000LSON 1 Midwortb, Newark, NottiugbaiDJbire.-Du.ted 30th<br />
November, 18~8.<br />
•<br />
2746. 0EOROII Wtu!.!All B.u.IIB, Ipswich, SuJfolk.- Date.l bt <strong>December</strong>,<br />
1858.<br />
276l. LIVt BtBSELL, New York, U.S.-Dated lst <strong>December</strong>,l858.<br />
2767. Wn,ttA!ol ROBERTSON nod JAMII.S GOTLl&UI 01\CDAA, Dundee, Forfarshlrc,<br />
N. B.-Dated 2ud Decemb~r. 18o8.<br />
2837. COARt18 BODGS0!\ 1<br />
BaUard .Ra~b Jrum , Wicklow, lreiADd.- DatedllOth<br />
<strong>December</strong>, 1858.<br />
Notices to Proceed.<br />
188&. CoAntltS l«lsso!l, Birmingham, "Improvements In portable charge<br />
holders for breech-loading gun•, wbe~ber single or doubl&-barrelled, as<br />
also in ~he means of manufacturing tbe said holden, and in ex ploding<br />
the charge."<br />
1894. WitLIAJt LA PENOTI11Rll, Essex-street, Strand, London, " Improvement.'!<br />
In breecb-loailinsc llre.arms, and in ~be cbuges and project.ilea to<br />
be used tberewi!b."-Pdihon' recorded 20th J'uiy, <strong>1865</strong>.<br />
1903. RIOiiARD MoTT W AI-s~reet, London, "1mprovement8 In tbe<br />
manuf .. cture of iron rails and glrdcrs.''-A commu01cation from Martin<br />
Dieudonu6 Henvaux, St. S..rvais, near Namur!.. Belglum.<br />
1977. JonN LAWSOM and EDWA.RD GBRJUR)) l'tTTilN, Leeds, Yorkshire,<br />
·• Improvemeota 10 preparing machinery for flax, tow, jute, and other<br />
!lbrous materials.''<br />
1978. AOGUSTUS A.l'PLl!GARTB, Dartford, Kent, •• Improvements In machinery<br />
for 11rinting io coloure.''-Pdition• recorded St1t J uly, <strong>1865</strong>.<br />
198S. 'l'BOIIAS WILLIA.II. Tollllf, Watson'e-road, Wood-greoo, M1ddlesex,<br />
and Colonel STODARI, Eg"yptlan Ball, P iccadilly, London," A new or<br />
improvtd apparatus for Ulusory exhibitions."<br />
1996. TBOIUS BILL P .t.toN, Montrosu, Forfarsblre, N.R, " Improvements<br />
In machinery tor the manufacture of linen or other yarns or lhreads. "<br />
1988. WtLLIAM SINGLl!TOK, Sheffield, " Improvemen~ in apparatus for<br />
cutting ecales for knives. and forml.ng metal webs for knives."<br />
1991. FR&D~RtCK RANSOIIII, Queen-s~reet-place , London." Improvements<br />
10 roouog tiles and alabs."- Yttitaon r'tcordect lit .Augwt, <strong>1865</strong>.<br />
201~ EPHR.&UI SAB&L, Moorgllte·street, London, "lruprovewents in m11·<br />
cbinery to be used in ~be manure.cLure of plate orebeet iron and sleel."<br />
A communication from .Mar~in Dieudono6 Heuvaux, St. Servals, near<br />
Nnmur, Belgium.<br />
2016. ERNIST LISLIII RA!ISOIIl!, Ipswich, Sulfolk, " I mprovements In paints<br />
or prepam~ions for coating surfaces."-Petitio111 r«ordtd 81'CL .AvglUt,<br />
1866.<br />
2018. EPnllAUI SABKL, Moorgate-street, London, " Improvements in m&<br />
cbinery to be used In tbe manutactu.re of i.ron. ''-A communica~ion from<br />
Ma r ~iu Dieudonn6 Henvaux, $t. Servals, near Namur, Belgium.<br />
2029. BENRI ADIUIM JlO!INIIVI.LLI, Porcbes~er-terrace, Bayaw&.ter, Middle·<br />
sex, "lmprovemen~ In cbockiult or controlling tbo payment of fares in<br />
cabs and otber public vehlcles."-A commWllcatlon from L6on Seeker<br />
and Josepb Leib, Bootlevart Magenh, Paris.<br />
2081. ALPRID V1.NOUT NswroM, C'bancery-lane, London, :• An improvement<br />
In gun wipers." - A commWlicatlon from Hlram Berdan, Charles<br />
Lawrence Perkina, and Waiter H.ayes Burns, New York, U.S.-Pttitrol\4<br />
recorded 4th .A uqu~t. <strong>1865</strong>.<br />
2088. JonN Btu~RY JOUNSON, Lincolo'e-inn-fieldo, London, " I mprovement.!<br />
in the ornaroeuta~lou of glas1, lllld lu tbe.appllcatiou of gll.38 eo ornu.<br />
mented.''-A communication rrom tbe Society, R~odall Cre&l or a.pplicabte to m41'int condmring<br />
lttanl mgitiU.''-Dattd 4th May, <strong>1865</strong>.<br />
Iu carrymg ~h1a wveotlon i.nto • ffoct ~b e iovent.or usea the ordl.nary old<br />
and weu-kuown aystem of condensinK by iujectlng cold water Into<br />
lbe Ve$>el into which the steam enters from tbe cylinder, but be does not<br />
use sea water for ~his purpose. Tbe invention consbl8 in coodenamg tbe<br />
ateam by lnjec~ing fresh water or "a tor preVlously used, and in refrlgeratlllg'<br />
or cooling the water used for tb.b purpose over and over again, except eucb.<br />
portion aa is fed to ~be boilers. - Not procctdtct with.<br />
l SOl. W. J. RI Cl, Chd1ea., "Macl&iM1'!1for obtaining 111.0tillt polliU. "- Dated<br />
lOth Ma!f. 18~5.<br />
Tbid tnventaon relates to a novel arrangement of mechanism whereby<br />
m utive power can be obtained from the expansive force of compresaed atr.<br />
I n carrying out tbe Invention tbe patentee has a reservoir of suitable<br />
capacity and st.rengtb ~ cont.aln air under con•lderable pru1ure. Tblt<br />
re.oervoir commun.catel!, by means of vah·es ovening oa~ward, with tbe<br />
wo~lve power engine wbicb form! the subjec' of the inveu~lon. Tbe<br />
inveution caunot be descr1bed w 1~bout reference to the drawiojlS.<br />
1S03. S. POKOTYN81U and M. MTOIKLSJU, Parit, '' Obtaming attd applying<br />
111.0tiv~ po o:tt·."-Dactd lOth May, 1e65.<br />
Tbe objdc~ or this lnv.,o~ion is ~ ob~tu increased power from the pi.e~ns<br />
of eteam ~ngloes, whether boriJ:ontal or vertical, 6xed or movable, marine<br />
or o~berwtse, and at tbe ea me tlme reduce the dimeoaione of the cylinders<br />
in which they work, and by this means economisi"g bo b steam and ftlel.<br />
1'b.e piston rod ~be patentees make U•e of la so con;~ru cteo.l a• to be capable<br />
of exten~ion ami co~~raction. This _ia elf
376<br />
n m; 11.1 lenglb IJ equal to the lenlfth of t he orlllnu y apear~. and 11•<br />
bnadtb will be rerula~ by the breadt.b or the pump bt.rrtl. Oenerallylt<br />
will be or eu ftlclent dlame\er to dltplact one·half of the water wblcb the<br />
pump barrel will contain. It requltee to be llxed a t both end.t jun 11 tbt<br />
ordinary rpean are IJ.xed ; the bottom end Ill atW:hed to and Immediately<br />
oter Utt bucket ; tbo otbtr end 11 attached to tbe enr1ne apparatWI overbead<br />
In tbe ordiDAry way that apea" are eo ettached. Tbll hollow tube 11<br />
rtqulrtd to be wa\er·llkbL and made of llrM mat.etlal, eo 11 11ot to n.ct11l<br />
the welrbt of en ordinary JJ*rt; the llabl.er lt la made the rea\er t he<br />
adnnl.lfe• over tboepeart. The motiYo power of the en5l1ne la required In<br />
the •mo amount for both up atroli:e and ilo'lfll atroko of the pump, btlng a<br />
srroat hoproYement on the pre•ent modo of work lore colliery OOIIInoa In<br />
nh•tlon to t boee pumpe. Thlt Improved pump, when In action. roakoa a<br />
conllnuoUJ Orted ur.oo a frtwe havlroJt a contra! and two CJrdluary<br />
whuiJ, aud an enilno with a pair of cyllndtnt u1.on a aimllar rraroo and<br />
""beth<br />
Ue llya
D EC. 8, <strong>1865</strong>.<br />
THE ENGINEER.<br />
-<br />
the feed log ol tho mnrklog mat.erlal la progref!llvely made through tbo<br />
applleatlon aa a regulator or motion and power, and which may be termed a<br />
noulo or tho pencll,and ont of which tubular holder the last piece or tho liquid chronometer. It coo alate or a cupola abell opoo at t-op and bott-om<br />
m arkln~r material is lloally dri1•eo by a. •hor t rorclng wire Interior of the<br />
rotating on Ita vertical axla, whlob dlpplog loto a bath or llquld,lmparLa<br />
tubular bolder, and the Improvement.& oonalaL In cooatructlog such ovor-<br />
cootrlfogal motion to the portion of the llqold ln1lde th.e cop, caualng the<br />
point-ed pcoclla In the followln~t manner :-On tho abor ~ tubular bolder liquid 10 Impelled to rlae until it la on tho point or onrllowlng. Tbe liquid<br />
thoro la a nob or projection, which ont-ers a fomi\IO acrew of uniform pit-ch<br />
la mnlotalncd lo thla condition without further expenditure or roower 10 long<br />
end t-o ond, ao that, by rotating Lbe acrow, thr tubulAr holdor la progros-<br />
ae tbe epced or power of tbo mllehloe or apparatua to be regulated remain a<br />
elvoly moved forwArd towards ~he nozzle or the poocll, together wltb the<br />
at tbe normal •tandllrd ; eo aoon u tbla la exceeded aod a conacqoeot<br />
marking material, ono end or which 6tl In 11nd la held securely by tbo<br />
lncreaaed Impulse le Imparted to the cup, the llqold o• erflowa the upper cdu<br />
end of tho abort tubular holder, while tbo other end or the marklncr male-<br />
of the rotating cap, coaalog 01peodlture of power which will pruent tho<br />
rial la, when In use, prjectlug through tho nozzle of the pencil. Int.erlor<br />
further acceleraUon of the cup, and thla ebaorptlon or power may bo furtbor<br />
or the abort tubnlar bolder la a. abort forcer wire, on or ne&r oao end or luereued by caualug the hquld thrown out t-o pua alternately agaloat 1<br />
which la formod or Oxed a neb or prnjeclloo, almllar to the ono on the<br />
aerlfl of 6xed radial vaaea llnd •aoea rotatlog wltb tbo cap.<br />
abort tubular bolder, and tbe neb In tbo forcer wlro alao ent.era the thread<br />
1231. J . CATtt.t.Oll, l/atton-gardm, 1And01\, "&l/-1UP'PIIIi11g puol; tbeeo flop•,<br />
rollora, and it la mond to and rro by n olt a and piolooe, or screw end nut, or<br />
when tho mllnctlo la lo uac, a re turned over on t) the top or tho bo1.-Not<br />
other equivalents worked t.y band or other power,10 u to brlug 1ho cylluder<br />
yrOt:ttd.td uith. and rllm under the follower, or to ooo aide wbeo roqulred. .lu w o rt lu~r wltb<br />
122l. J . F. ALLII~OIIl and T. F. CA8utN, SI".OI'!Id, " Palttntrl for driving tblalmproved preu tbe largecylloder aod ram are moved to one aide, and tho<br />
llandl, 1 trapl, lltlt.l, lw.rntu, o•· other 1ucA toA:e purpou1."-Dated lit May,<br />
follower la b routb~ up by ~be two •mallet ram a untlltbe ouder aide lhereof<br />
18116. Is abo•c the level of the Jar~ro cylinder and ram; the large cytloder and ram<br />
Jn Ilea or tbo present mo.Je or connecting Lho end• of drivlag b:wda or<br />
11re tbon moved under the tollowor, and the llual compreuion la ghen by tbo<br />
1tropa ror machinery by rlvettio~r ur aowlog them t-ogether, tbe lnvtnton action or tbo large r11m.<br />
propo•o to connect them by a ruteoer. Thla faateoer C\loslell of a me1alllo<br />
IU.7. T. J. MAV.\t.L, Rtd Lwn.·coll>'t, Puet.llrtd, London, "Ma"1ifactwre<br />
plaLO to be attncbed or ri•ott.ed to 11ne cod or the ILta p; the plate le for med<br />
&r trcatmtnt of mdia~btr 01' gutto.-pwch" &r compownd• thfrtO/,<br />
with luj~l or ura Iota or betiVeen wblcb la Haod a 11 uted eccentric roll ault·<br />
applAC4bu to the -prodmtaon of •lertr>IVPt plat.u, l:c."- i>altd 6th Moy,<br />
oblo for tbo purpoao req•tlred. Tbe roll turna rreel1 In tbo lugP, and when 1b06.<br />
lt la 10 plocod tba' the .hort.eaL radlue of the eceentrle is oppoette tbo plate<br />
Jo currylog oot tbie iovenlioo the palonteo tJ:tkra the lndla-robber, gultauoatlacbod<br />
end or tbo bond, lt eau bo pa•sod bouooth it, when the roll la<br />
IICrcha, or eompouoda tbercof, when combined \'lltb aulpbor, aud lu a aoml<br />
turned With lt, 10 Lhalaa tbe rodii becoooo l on ~ e r it prcssca upoo ond tocurea<br />
or partlnlly converted atot-o, produced by the B~Liou tberoou or tbo sulphur<br />
tbo bnud tho more tlgb~ly tbe greater tbo atruin tbat la upou lt.-Nol pro-<br />
nldcd by heat, and then In title partially converted etate, be opphca auch<br />
cwlecl will•.<br />
matt.er under prcasurc and bellL to the eurfa~e t-o bo stereotyped or copied,<br />
1:!23. J. U. JonNSON, LifLC()/n·•·inn-jfelAl•. Lon,Jon, "Stlf-acting a/arnLifoo· nnd ho cootlnuca tho prenure aod bent until porfcct counrolon Is obtaloed.<br />
in.ditu.t'••u a1• txcur o) heat or cotd.''-A commomKalton.-iJo.tccJ 2rlcl<br />
B1 tbo terma ··converatoo ''nod "oonnrtcd '' be meaoa that atato of tbe<br />
Jluy, 18M.<br />
mllterial which Is otber wleo called •ulcaolaed or cured.<br />
Thla mventlon c11onot bo desc rib~d wit boat reference to tho drowiog1.<br />
1260. C. LAli NRT, 11 o1kinvton, Cumbtrl4nd, "Conttrmtion ond I7IOCU of<br />
1124. R. FMifl'lR, Rtd Lio~·cowrt, London, •' BMlioutng pro.cu lo J,acil•tate 6UPPlyang fud to Jfrt'll'"O.Itl, 1toet1, and lilt furnacu of lotomotn:c and<br />
lht opn'ali'ln of rtJuf cotourrng on enedopu, note pap~r , .tc. - JJattd o.<br />
Tbo object or tbla lona~loa la to aupp111oel for conaumpUon on the under<br />
Tbla tnvouuon C\lo,lah In rcplacln~r tho horizoal!ll die by 11 vertical ooo aide or the fire. Tbo fuel Is forced up by & plawo or part•lloa worltlo~ In<br />
m ouUJcd ou a •bar, wurking In plummer blocll:a, and bAvln~t tue dcvleea the acgmeot or a cylinder, aod auachcd to a Blrong axle, or rather ILI1 tltted<br />
cui( raved or puocbed ou tbo cll.;e of 1~, iuatead of on the plane. I ut-a a tlot therdn, aod le cap11ble or belog drawn tntougb each axle eo u to<br />
Wt l 1 d p1111 IL from one aide to tile other thereof. 'l'ho cylinder may be Jlkeoed to<br />
U20. T. A LLCOCR, Birmingl.am, "Pinlllling and pol '"U 1 ' 1 .ta tu ltl an bolf tbo cover or an ordloary Blr fan, and Lhe piston to one uf tbo blot.des or<br />
roda."-JJu.ted. 2nd May, 1bO:i. I I b I I ll I d 11 d b h<br />
Thla 109 cnuon cooaleu 111 au Improved modo of Oullhlng mctnl tuboa by<br />
tho fan loose y nacrtcd t ruog 1 a a lot- n 10 axe, no eaa y rawn t roug •<br />
1 f 1 1 1<br />
When the pteton attaloa to tho level of tho grate bott-om, which la over ono<br />
which tbo patentee les!cns or ovo•da tbo omp o1mou~ 0 manuo nbour 11 ltnlf uf tbo C) Jluder, Md all tho fool l1os been forced up lot-a tbe Orf, thu<br />
tbo oporntlon termed tluattng tho 1 ubca, onJ oleo In an 1mpro\'ed modu or<br />
1 11<br />
d 1 1 1 011 d llb f; 1 ntlllt h h<br />
I IOiiabln" motnl tubes aod roue. 'l'ho applll'lltna ho employ• for tbeao pur. anuu nr cy n or or rcccptoc o 1 ago 11 c " oc 0 rcnc es l o<br />
" 1 11 d 1 1 1 h 1.o 11 t 1 under eldo or the piston. The piston le then drawn through tbo elot In tho<br />
poeu ~'
' THE E NGINE E R.<br />
~7 8<br />
a wu btr mad• wll h an apen ore ju t larfe tliOU ilh tn allow or I be two pl at~ 1 m ecbanlam like tha\ deterlbed In the apeelllc,tlnn of le• ten patent No.<br />
of tbe ahaok wbeo lu con lad puelnr tbr• Olfh 11. The platea nr wlrta moa' 11 11. for the year 18\ ; No. 488, for tho year 1861: and No. 1118, for the<br />
be of tueb mttal aa •1ll aiiC\w llr tbtlr betna bent w it hout breoklna.<br />
ye•r 1~62 ; the ohjtc\ or the Invention being to fac•llt.ate the manurac•ure<br />
U Q.S. D R &atLIIT 0/d/laa, " Ma"tifa-t., 1 ~ oj *OIIldl for •dallic ca~tinll• na1at In lhe noYea ~mptoyment and use of a l l)ltt a flplle•l by vute or cement for tho purpoae or. ftnllih •. Jn tbe<br />
.tricll lo or template revolving 00 10 axoa aupported on the moulding box<br />
common conat ruellon or ah001 upon aucb mac:bi ~> es the ~tttchet uniting tbo<br />
and panlleJ w t he out.:r clreu mreronco of the C) Under 14 be ta1t. t ho aolea and vamps past thrOUJih the ouLCr •ole, tbe vamp, and the \uner oole.<br />
proftle or outer edge of -ocb urlckle I• formed ..,., correapood Wltb t ho Shooa bavlntr nn per10anont lnnrr aole have, ho .. ever, to aume uttnt,<br />
abal·e or deslyn ur 1he ~ t int n qulred, 10 u dunn~t lt.s revolution to been cooStr ucLCd upon •heae maehmea, a narrow leat~eT or pasteboard<br />
,.move tbo loam aconrd ln ~t 14 the vuyl 10 g abape of the mould req•Jired. o ner aole being u,ed, thll 10le btlng luted w1tb tbe amp, and tempo<br />
When the revolvlnll ttr1cklt 1t employed 10 form m •ulda of lar ge duneo-<br />
ra11ly aecured to the 011t.er aolo, or the outer aole tl) lt., by lutlog taeka, and<br />
a loo~<br />
ruch u •UPIJOrtlntr plllar 1 a 11 d alm•lar caAllog• the aro •ndworlt or forming no part or the uolou between tbe outer aole IUld vamp, bu\ be1og<br />
foundation of the mout 1 contained ~ltbm<br />
the ruo'ulding box ia to be ripJ>ed or toro out afh:r the ahoo ~" •owed. By lbe present. lnventl?o•<br />
permao .ntly ftllod u p wltb brlcllwork, the m oulding loam it then 10 be hO,.'ever, tbo emrloyment of tu eh flt xlbto tt!.mporary Inner &olot and la.ung<br />
pla•tered 00 to the luner rurfaoo of •uch bnck mould, aftt:r whlcb tbo tacka '" dlapcn~cd "ltb. a mct.altlc plato or tnuer aote btlng used for l&lir<br />
atrlck le lt eau ed \o r;,volve, u doscrlbed, 14 form t.he (Urfac:e Into the log, thla plat.e bavln~t<br />
1110h form and lite with reapect U> lhe ou 1 ~ 110 e<br />
deal go required, which produce• & amooth and even aurfaee upon the loam,<br />
that the IIILChea uniting tbt vamp and out.er aole are form~ ou 11de or,<br />
and tbtrcby forme an d fectuat mould ro.r the ryllodrlc.t ca ~Ling Without and cquldlataot from, tbo edu or lhe m ~ tall lc loner aole Tb11 fahe. aole<br />
the uao of the aolld panern now employed. Wben a mould for ,. curved bu & number of plna proj•ctlng fl"om Ita nut.er aurface. around wb1c~ a<br />
t ube or elbow le to be formed the above.deacribed wetbod may be used to thread la wound, tbla thread cluplng or temporarily uniUog the oppoa te<br />
for m the Oange or or namental' cap at:d tbo curve or the tube b formed by edgea of tbo vBmJ) lo luLIDI( ; theae pine aliO aervlng to keep tLe outt!r 110le<br />
means of a ~e roove or template 1; 1 wblob a pro6le m ovea w remove the In po5itloo. When tho vam p luu boen drawn over tbo last, tnd over tbo<br />
loam aceordlng to the ahape of t ho tem plate or gulde.-Not proctedtd edj(e8 of the m etal 1010, and Ita oppo•lto cd~tot<br />
laced or basted by the<br />
· 1 ~ · croulng tb relld, and tbo outer 1ole applied to the vamp and plale by tbo<br />
1Dt<br />
plos or the plat.o, tho la&L 11 removed, the ahoe being t hen in condition w<br />
1206. 1':. MnRa, MUlbank·ro~, Tl't1lmimttr, '' Wee ga~ mdtr•."- Dated lOth bo eowod, ~ho oeedlo In aewmg pusloy j uat out..ldo of t ne false sole, &J>d<br />
.llo!J. <strong>1865</strong>.<br />
through ~ho contiguous ed11es of tho vamp and outer sole.<br />
The f lriL part of t hl1 lnvontlon relatea \o lmprovomont.s In the a r ran~rc· ·~ S T<br />
0<br />
S •. T .. A , t · t nd<br />
m en~ of tbo Inlet PMI~ It'O ror the gas U> tbe meaJurlng drum lu e 1 mblna- 1 ... ~0 . · · AR&BTT, to«;o~· 'me, , n •m'Jif'M!ml4 11 'n ' oppn-1 a<br />
t ion with t ho waste wa t.er chauobcr. The object. of the F irst pan of tho JW•k•, boUiu, and other ll•,tlor VUIIJOrmlt the WIL>te-wat.er to ft JW Into lt and<br />
l n carry1u11 uut thl• l n•· ~nllon th• P•t.entees llispeme entirely with the<br />
u p t he overflow pipe. By tbf1 arranl!ement t he ~aste-watt! r llue eau ICI&pcr, wblcb, In pU110g beneath the work la apt to, and frequently<br />
never de cend below tbe upper edjte of tbe l'ipe or cyltodu wblch surround• dou, i t retch the work, anll, Cll•eclally In culuur prlntlne-. preventt the<br />
t he o•erftow pipe, tbua • n11urlog the con•t.ant aoallng of tbo lower end of<br />
proper regl,url"g or tbo colour• correctly, A (fain, ll le well kno,.·n by<br />
the pipe \\bleb dcsceods from tbo lolet !>&'> a::e or lot.tmal cbamber tho3eln t ho trade that many atoues are broken by being (a.lmoJt lm perpre•<br />
lou..ly oe~erlbed. The ::.econd part or tbe improvemenll Is apl'llcable ceptlbly) uneven by tbe ngld or unytoldio)l prea•urc or ~be ~~Crape r. Now,<br />
14 wet 1111 mctenr, 1uch u were deacrlbed In ~heepeclftcatlona of pateota tho patentee em.,loya two, tbree, or mor .. rollers of equal dlme n al momuln one uniform level of tbe acrapcr.<br />
wator Hoc in tbo mcuur•n11 drum of wet G" wetero of this deaenptiou.-<br />
l 3l7. T. DAVIS, Clapham. Suo·uv, "l'uldl/ur c011taining bl4c.Hng, polilhin11<br />
Not proocuud IDith. oi/1, .tc."-JJat«l 12th May. 1d66.<br />
12119. P. BIIA8U, /~ 1111. a"d R. Illvt~ll. J.ltt jldalen.t Chcmiall Wor.b, near This tu ventlou hn~ rcrcruucu U> vt:&&ela for cootalolog blacking, potl1hln1C<br />
M u.uelburjlll, Mid Lothian, N.JJ., "Ontuo~~ttlllflg ean r•celve the barrel, Cdll, or other ,.ea.et wbtcb la partly balanced<br />
wire ovt r, ~hereby the rtq u11lte doublo tubular or approxlmat.e form ia<br />
tbereon, the heavy eod of the t.:ver fr11we bl:l g supported by a i pring or<br />
Imparted to t be umbrell:. or para.sol ribs; they then pau tbem through<br />
aprlnge, or by a welg b~ or we i ght~, acllng d~reclly or lbrough le vera and<br />
heated metal plata \o 8Lra•:htcn them, and bardou and ~m per tbem iu inclinea upon the lo1·cr framo, eo that" ben tbc liquid in t oe ta~~k or otber<br />
t be ordinary way.- Not procuckd 1Dil~ ve!ll>cl pl~~:t.-d oo tbo sah.J lever !hi me hill been drawn off bufScieotly, the<br />
1804. J. 000DWI5, Ardrouan, 4 y r, N.B., "CtUting irol\ jltrcUri ."-Da.Ud sprlug or 11prlogs, weight ur wct~htl, will, Rll the welgbt d 1U1inisbes, act<br />
U th !Jfay, <strong>1865</strong>.<br />
upon n.nd gradually clov11t0 ono cud, 11nd, coruequently, do.,rCS§ tbe other<br />
Tbl• lnveutton getber the tloo to b a suitable tpa''C to bo J K C D d NB " ,. --• · ,. J)<br />
collce1ed ~bc u they have b~come AOIId, and ~hen rc!leted uvon or used for lS3liSG5 · All\D, "n te, · ·• ... ~m11 m....,ullu. - o.ttd 1Stll .l.la!J,<br />
I bat pu1 1 oao for wblcb they are aultoblc.-Not procudcd watl•. . The cblef part of tble lnvrntlon conele~. First, in tbo appl lc ~tlon and<br />
1811. 0. MOOIITJIO KD, Grcu1crojt. Y~.l:, and E. WttllfiOLL, Uppn-, !.!tU, York, u•o vf ,. aplrul tubulur needlo for •• over· Mowm~." of sucb diAmo~er and<br />
·• .ApporJJ tu.l fur c ulttr~q, t~"''"U:. and •moot/1\ng mtta.l 'f)lpu, ur~cL the number of turus u wilt cvultllll the rcq01red luugth c.or tbrcod. Secondly,<br />
aurjolctl oj botr•, rod1, 01' 1p1ndlu. - J>oUd 11th .IJ1ay, 181!5. In maklug a ~lot round Lire OUtlldO ur c~rc uruferrnce of .a me, so tbat<br />
'l'bls tovwtlon contlth In adapting to au ordinary •cre w atock, or to on the tbr• ad lO bo u8ed may bo road I y mtroduccd.- ll'ot procudtd 1Dith.<br />
apparaLuN or analui(OU~ cooRt r uctlon, a cotter l)r cuttera, or otbt:r sul""blo 1332. W . 6P&~CK, Q 14 ahty·court, Chanccry-ton.e, umd.on, "lmpro'Ccmntu in<br />
tool•, which aro cavablu or being advanced by BCICWI (aa Is w~ll·k .. own)<br />
the mode oj rtjhnll muu e loo.tJi"(l cann11n, and in. projtct•U• jqr the<br />
for the pur po•c of cultu g lmo, •mootbmg,fr. tu\~ng cyh ndrlc:lleurfaees of 1amt.''-.d comn 1 u,.kallon.-DaUd 1St/& Ma 11 , <strong>1865</strong>.<br />
metal, eucb u pipea, boltt, aba lt.s, or apinu Cl . bcu the cutt,t,rs are ftxed Tbls luvcotlon conal•14 In d1vld1ntr the interior of the cannon I 1<br />
In the at.Ock , or In a oy other equlv•leo~ luotruwent, wbicb ~ UI<br />
embrace alternate port1001 compoaell re.peetlvely or larger froovet along wnlch ~h~<br />
the !Jlpt, bolt, or epludiO W bo 0 1 cra~d upon, ~he IIAXk 1 ~ mo•ed r1~ mill1."- Dattd 15tA May. 1€G5.<br />
Tbla ln••entlon relatoa to maclaloery used In combmatlun ~ 1Lb vertloal<br />
uwt. Tbe face or J!ulde plate, t'Ddle...a cbaln and racked bar, commonly<br />
employed In "'"'in«r macblnery, are by thl~<br />
lnveotloo alU>getber dt•penaed<br />
wltb aod In at~ of the'"'-or auldo l •l•l~ hlther U> o the hud or UJ'Jl"r end of a 1haf~ on<br />
wb1ch ooe or the conneetlog wbeela h 61ed, tbe l'lther of •uch m \\re wbeola<br />
btiu!r mount.(>d on a borlzl'lnt.al abaft carrying the raLChet "btel b~r!loa f1er<br />
mentioned, and by which the mitre whcela are actu~ted. thu.s ll'"'"ll the<br />
rcqulslt.e Cor .. •ard motion U> tbe timber U> bo u .. n . "bleb til prtiiod<br />
ag..lo\t tbo nld vertical 11roovod rollcn .<br />
Tbe uid ra1cbet wheel le<br />
lumllhed wltb \ho ordinary ~;ear,<br />
well uodcf"tood by penona aequalute a wheel ~ htch la ftxed on tbe cr&ne po>t, and Immediately<br />
above tho ba e pi ••e, or Into lnternJ I geu on the bue plate luelf<br />
this pinion h at rut, cxcepllog wbeu the etuLCh 18 thrown mU> gear wllh<br />
the cluLCb box and worm wheel, and tho crane then n.dla~s or ret"Oive<br />
round tbe crane poaL In ~he<br />
uaoal manorr. J n ••rder to malle the crane<br />
t ravel on Ita .. hcolt, the paten lee hu a largo wheel w1th gear on Ita outez<br />
dlamoter wblch u 100111 (not kcyecl) upoo tbe crane P' at, but the pmlon<br />
gear• totO I~ a ud la ~or ked In the mn.nner above dea be, and he then throws tbe friction clut dimlollh tbe uralo upon t he pit ropet,<br />
whtcb ar.~<br />
carried ovor a .,uney or drum at the IUL by tbe emplo.vmout<br />
under t!&Ch pulley or drum bearing of a aprlog 11pparatus coDillatlng of a<br />
cylinder contalulnl( a pl!!ton, to 1110 back of wbich '""'"m, 11r, or gas Is<br />
atlmltteJ. Tbe 1JI:iWn ro a pair of ateam cyliodera plac.:d at iueb angle of lnclloattoo<br />
M<br />
aball be m ost expedient, and or calculated area w overcome<br />
tbo wtlotht c.of, at Jea,t, the empty cage aod tubs. T no amoUDt • f aprlof<br />
can bo ro~u lated by ~he leurtb of cyllodcr, or by &J>J>Iylnsr re~~ts<br />
upon the alidut or wotlon ban; the pipe. are atu.cbt.-d \o the ordinary<br />
neam pi pea at or near the C) ttnder of the ~ lndlo..: enr:ior, witbln view of<br />
the cngino·man ; the admi~Slon<br />
of iteam being re;ulat.ed by an ordinary<br />
val•' o or cock . Any de•lred amount of pressure may be ~;alued under t he<br />
pulley C) lloders by tbrotthDlf t bo pipe! cunveylu~<br />
the st.eam to tho<br />
cyllodcnt.<br />
l uatead of •team, air, or gas, water may be uaed, tbo preaure<br />
bemji ~ealnod from an ordloary accumulator.<br />
13&4. R. and U. BAIIIltLD, Farring~· drett,<br />
[And()rl, "Pr~nt lltjl macli in.t~."<br />
-J>att aiWo eldowo.ye In a 1lotted eye formed lu tbe lower extremities of<br />
t wo rod•, the uppt r cxtrcmiUea or which take hold of tbe beariogw In tbe<br />
before·u1uoed plummer lllocka ; and when the crank shaft Is cawed W<br />
make a partial turn at tho rlt~b t tnt.enala these roda draw do•n or rAise<br />
up the cylinder. Tbo eald rodt arc g01ded to maintain tbcm vert1cal. Tbo<br />
cyli nder I• prevented from de•e, udlng, wben deslrablr, In the followlog<br />
mam1er :-Oo lbo belore-oa.mcd crank 8hat~<br />
IJ fbcd a tb1rd and<br />
doubltHmded cran~«, oach coli furnL.hed wllh a pin. A cam on th~ dnviog<br />
abaf~ or the machine I• elllplo) ed to cau.e tho crank sb af~ w wake a par·<br />
llal toro at t bo rlgbt lntervalt, Cor tbe purposo~ of rAiling or lowcrlog tbe<br />
C)huder. The conne~;tlng rod or the aid c..w t.erwloatea ln a gab, ~bleb<br />
t.akl:ll bold or ono of t he pma In tbe Aid doubi!H!odcd e auk, for the pur<br />
!>11110 Of turning the ~halt. A lever, alao fUflll•h g•sar with tho Olher pin; tbiJ betnJr<br />
elft et.ell wben t t.o cy1lodcr .a up lt rema1n1 UJ\ tbo aal.l lever b4:tOg .ec:ured<br />
In 114 new poa1Lion. 1 bll ume movemeM of tbe le••er la emptoy.U w \ brow<br />
tbo ea .... ou the dr1vlng 1baft of the machine, wh1cb givea motion \o the<br />
teed bo:1rd of the machloe out of gear \\llh the board, ao tba~ lt cene• \o<br />
act whiiO the cyhuder remain• up; thll ia efftcted by conoeet tOC ~be Aiel<br />
lo•er, by a link, whb tbe eooot~;ttng rod of tbo cam 10r aetu•\ Wif tbe feed<br />
board, wbich lt hft.s out of ~tear w1 tb a pin A cu r~ed j oiDted lever la<br />
employed U> open the ~rtppen at the rllfht t sm c, wb1eb le•t:r ia worked by<br />
t he cam for glvtug m otion U> tho feed buard.<br />
•· Rid era ·• are pl..cod on the<br />
Ink r oller~, lbo a.,wdlet uf wblcb at ooo extremity are acre .. ·tllrcadod, aDCl<br />
tbe threaded portton worka In a nut wbtch Is •uvport.ed on tbe •ld• IIUDe<br />
of the maeblne, In cona(qucnee or wblch, as tbe ridera are cat:JMd to<br />
revolve by rcet•ng ou tbo tok ro1le11, they also receivo a motlou In the<br />
dtnctloo or tbelr lonrtb al~rnt.tely<br />
In l&eh dlrectiOD, .. tbl t.ble of<br />
the machloo cowea and ¥OU•. J. cam, fur nlabed wltb varloua padea, 11<br />
employed to &ivo motion to tbe vibrator roller. A roller l.J placed on oacb<br />
•<br />
•
•<br />
DEC. 8, <strong>1865</strong>.<br />
T HE E NG I NEER.<br />
379<br />
elde frame of the mauhloo, to facllltat.e tbo puttloiC on and the removal of<br />
tbo for me from tbo machine. The pateoteea cauw tbo ductor or lnlc<br />
cylinder to rovuh•e by mltru gear, which can bo put out of ~tear with lt by<br />
elacklo•g a folcUon ~••her, when tbo ductor may be turned by hand.<br />
1846 J. O.lOOLlln, &adinq, "Omw /07' ba.bnq brtad."-Datul 16th Jlay,<br />
1~6.5,<br />
'J bto oven le cnnetructfd lon~t In proportion to ih width, and 11 clivldetl<br />
loto ,cveral fCctlon,, with a fumtt.CO or 6re·place and Oues whb aJ'parMus<br />
ror re~ulatlo~e t •oe l>t at of eoch section. 'l'here aru al.o glazed opeolu~r• In<br />
ono or l>otb elllce at Interval• lo order that tho pr(ljlreOTR or TUB N~tw Zuu~o laoN:<br />
VaiUIIbk Stul to bo P'roduced i 11 thJJt CounlNJ : £10.000 wwth of<br />
:blachintry to go out-R~rLWAY HATER: Evidence for tlte Royal<br />
Commi11ion nt:tt Wtdntlldoy-CoAL Ta.u>&. Brilk-B.&aDWARI<br />
Tu os: Active: Localitiu Sptci/itd-AORICOLTOBAL I»PLB)IINT<br />
Suow: N!llleltiu llare-BoAJlD OP TRADB RnuRNs: bleiaLr and<br />
Hardware• Sp«i/itd.<br />
T os coosumel'll of finished iron in the United States of Amorie&<br />
continue to order somewhat freely from makers io both North and<br />
also South Staffordshire. Although, therefore, we have arrived at<br />
a period when, as a rul t>, buyers at home limit their purchases to the<br />
lowest possible qnoutity, yet most houses have now as many orders<br />
under baud as they can execute within a reasonable time, and<br />
second-class iron ie increasing in value.<br />
The price or North Sturrordsblre bars is DOW £8 a too, delivered<br />
in L iverpool, tbe makers having resolved that they will accept no<br />
more orders at the prices which they have been rt>ceotly taking,<br />
namely, £7 lfis., at tbe port named.<br />
Tbe previoudy loug list or<br />
American orders has been increased by the specifications received<br />
by this week's mail, \vhiob, indeed, hAS brought a larger proportion<br />
than bnslalE"ly beco tbo ruiP, nlike to North and South Staffordshire,<br />
the bar oril~>ra goinp: to the former, and the 11heet and hoop orders to<br />
tbP latter division o( that COUnty,<br />
Yeeterday (T hursday) South Stal1ordsbiro iron, not of the first<br />
brands, wa11 quoted on 'Obaoge io Birmingham 2s. 6d. and 6s. a too<br />
h igher tbao 1t be.s r ecently been sell lop: at; and holders or orders<br />
(or plates &od eb~ete who were not prepart'd to g ive the advance,<br />
found it very difficult to get their speolfie&lions off their bands;<br />
but, with tbis advance, tho rates at wb1eh a large quantity or iroo is<br />
seot from the works is much below tbe list of .£8 10s. for bars.<br />
More orders bav11 come to band in the past week than 1o the cor responding<br />
per iod whioh terminated at the date of our lasL Good<br />
platts are io growing reque&t, and sheets for galvanising purposes<br />
are again io demand.<br />
Certain makers or pig iron r eport that they are unable to deliver as<br />
fast ta their customers require; aod that if they could make Cuter<br />
tbey might secure a considerable advance on t he prices which they<br />
are now getting.<br />
Some severe experiments wore made on Friday last with iron<br />
produced from the iron sand or New Zealand. Mr. Cbarles<br />
lllartiu, meebaoical and consulting engineer of London, has been<br />
successful io smelting some or the or e in a small furnace with coke,<br />
IUld with blast from a L loyd's fan, by which he obtains fourteen tons<br />
a week, aod be llas bad i~ made into bal'll, sheets, plates, &o. Some<br />
or the bars were broken on the day named by the cbain-testiog<br />
m aobi~Jory or Messrs. Parkea, or 'l'iptou, and links of l iin. rounds<br />
bore a tt'nailo 8traiu up to 62 to os, wbilt! the GovernmenL or Lloyd's<br />
test is ooly 18 too a 15 owt. Tbe nperimonts a bowed that, according<br />
t o the working or tbe iron in tbo puddliog furnace, it became bard<br />
or soft, and that tbe less tbo mantpulation the stronger the bar for<br />
teos1le uses. While the rounds which were made by ono 6rm wore<br />
extremely bsrd and much resembled steel, there wsa fenoing wir11<br />
shown which was as soft as such iron could be desired, bending<br />
cold easily around ita own diameter. Again, the same wire<br />
ditJereotly treated is being drawn into vtry floe threads; and a<br />
half. iocb plate, rolled by Mt>ssre. Cam mill, wbeo struck oo the side,<br />
rings like a piece of liteel. Dy the cementation process Mr. Martin<br />
proposes to mako steel in New Zealand. lie will take out tllrt>e<br />
furnaces or moderljte dimensions, r.od two horizoolal engines or<br />
40-borae pqwer each, alt~getbe r £10,000 wot tb of mr.obinery.<br />
Charcoal be will be able 10 get in as great abuodaoco as the &and,<br />
and plenty of hme containing a percentage or manganese. Tbus bo<br />
will toro out iogota or at eel that at the pr~seot price or t hat metal of<br />
a corresponding quality is worth £ 50 a too, wh1oh be is sure be will<br />
be able to dehvor 10 the Thames at a cost to the producer or lOlls<br />
than a fifth or that price. FrOID the investigation we have made<br />
we ioclto& to tbo opioion that be is r igbL When Mr. Marlin began<br />
h •s experiments Mesari!. St.ensoo, of Northampton, Mr. Musbet, of<br />
Cole(ord, and a Frenchman named Moreau, at his works at Ha: te~oa,<br />
bad all e.Jperlmeoted with tbt>ir own patents in attempts to utili~>&<br />
tb11 s11nd, but to uo commt'rcially practical purpose.<br />
R~lattve to t be ralas of carriage by railway and canal from this<br />
dU.trict, tbe ratlway &utborities br.vo lotimau:d that the poiut.s now<br />
under di~CU8Mioo have been narrowed to only two or tbree, and tbat<br />
t he traders will 8oou receive their de8oi1e rt>ply. The case or the<br />
iron trade will be Jeid before tbe Royal Comruisaion ou Wednesday<br />
next(tbe J8tb iulibut), by M1·. J ohn l:lartley, Mr. William Matthe w11,<br />
a nd .Mr. Waiter Willlams, Mr. Footer, M.P., tbe cb .. irmao of the<br />
trade, who was appointed, baviog tbougbt t.b ~t the evideuoo of<br />
the&e geutlemeo will be suOicioot. Mr. W1lham W.alker, factor,<br />
and ru.r. Edward J. 01bbs, iroomaster, Lave been appo10tod a der~tation<br />
to give evidence before the same comm!&si~n on ~ebal( or. t~e<br />
Wolverbampt.ou Chamber of Commerce. 'lhe•r teatunooy, 1t 18<br />
expected, will be given on tbe 14tb.<br />
Cuull11 in grta~r rt quest tbau it was last.weok ; ~nd some consumers<br />
or l11r6o q uuullties are not well supphed. Pnccs, howev .. r,<br />
do not advsuce.<br />
Wltb r egard to the general hardware trades of the West Midlands<br />
we Lave to rE"port t bat a modPrate amount or activity is ob, gave the signal "lino<br />
olear. •· Tbe lraio r ushed on aud dashed with a tremendous crash<br />
i uto tbo lock btolow, killing tbe engineer and fireman. Tbe gu11rd<br />
jumped ofl aud saved his life. 'l'bo engine and t rucks were<br />
shattered to pieoee, and tboy and their cooteot:.s ooml'letely<br />
cbocked up the eutraoce to the dock.<br />
T bo only witness c~ lled<br />
before the coroner oo Saturday was James Cole, an eogine.driver on<br />
the Vale of Neatb line (and brother-in-law to the deceased W11li11m<br />
Cule ), who deposed t hat \\ illiam Cole had been thirteen years in<br />
1be employ of the V11le ol .Neatb Curupaoy, b ut ~as a" spare llaod,"<br />
baviug beon " put baok " for acciden ts bappeniog to the ougioe be<br />
bad charge oJ, and wbiob might appeu to bavo been cauoJed<br />
by negligence; bo had c.Cten dr1ven over tbe bridges; there wero<br />
red and white slt~oals on the New Cut Bridge aod tht1 Lock Bridgt,<br />
wbiob could be aeen from t be plat(or w a~ Port Tea aut; thoro was<br />
also a aigoal at the tank office. A policeman stlltiooed at the<br />
ea3teru d t!joUL gave tbe aigoal to start, and then they paid no attention<br />
to aoytblog el·e e:r.cept the brid!(e. Tbuy would see both the<br />
bridge signals from Port T enant platform, 10nd at star ting tbey<br />
could see them, whttber they were bl:(ore them or against them,<br />
but in t he dark or tbe log it was impOiiStble to see the signals from<br />
that point. T be bridge signals worked with the bridges, a.ud eaob<br />
bridge oniy worked ita own elgoa\. It was tbe duty or tbe man on<br />
the New Out Bridge to give the signal by hand l"mp, and aLio t 11e<br />
duty of the man on the other bridge when they passed there.<br />
Tboy placed t be lamps on the girder or the bridge. IL was the<br />
duty or tbe Now Cut Hridge man lo give the signal," All rigbt," a nd<br />
tha~ ougbt to moan tbaL botb bridges were all rigbt, becaube he<br />
should not give the algoal uuless be bad reooivod i1 lrom t he otbor<br />
man. T be ioquiry was adjourned till F riday, D.,cember 7Lb.<br />
J obo nowelle, the signalman, is io the custody of the police.<br />
'l'bo inquiry touoblog the death of the six men wbo were killed<br />
a t t be fearful buil&r eJt1,1oeion aL A beroarne Tin works, w1111 resumed<br />
on Monday last, when Mr. Llewellio, solicitor, again nvpeared for<br />
1\lr. W bitebouse, tbe proprietor, aud said tbat as it appe•red to b8<br />
tbe wish or the jury to have a Goverornent engineer, bu should no~<br />
tbeo call t be following geo tlemeo who bad examined the exploded<br />
boiler :-Mr. HozzAy, Jllllsldt! Works; Mr. Ricbards, ~bbw Vale;<br />
Mr. Grey, Ebbw V11lo ; and Mr. E lliott., of Macbeo. Tbe coroner<br />
said be would writ.e to the R ome Sooret•ry informing bim or the<br />
jury's wibh. Heu ry Lewis, engineer, said iL was bis duty t.o look<br />
aft.er the boilers at the works; on t he night or tbe accident be<br />
examined t bem as usual and found that tbe water was well up; on<br />
a second examination he found No. 8 boiler, the ono that exploded,<br />
full or water up to the top cock. Tbill was twenty-five to tl.airty<br />
He oouJd uot give any reasou I or the<br />
minutes before the explosion. The boiler under went a t borougb<br />
r epair about twelve mootba a~o, liince which t imo t bere bad beeu<br />
occasiooalleaka, but none calhog for aeriouB att.ontiou; the works<br />
w~ re stopped for one day every mootb in order to thoroughly examine<br />
aud clean the boilers.<br />
explosion. T bo witness expressed b 1a decided prefereuce for gauge<br />
cocks over tbe gl11.011 gauge or tbe ftoat. Tbe inquiry wu lben<br />
8djour oed till 1'nol'8day fur the coroner to communicate with tile<br />
H ome omoe. This procedure WdS indeed recommended iu tbe<br />
leader columns ofTuK E:iGlNREK some weeks ago.<br />
Toe H eath Oblliu Works are prog resdmg wnh great vigour, and<br />
a large amouut of busiu61'8 is being done in obaios, independen tly of<br />
the amount or oalla manufactured.<br />
The spirited proprietor has<br />
just fiolshed oue or tho longest chains y et manufactured in South<br />
Wales, for Lbe Pwllferon Colliery. I ts weight i:~ about four to os.<br />
lo tbo worke aro eeveral other large chains for d ifft~reut collieries in<br />
tbo neighbourhood or H oatb. Tbis is a proof or Wbllt CllU be done<br />
by SouLb Wales in tbo mMoufaoture ol chains for all purposes,<br />
SCOTLAND-ITS TH.ADE AND OPERATIONS.<br />
(From our own Corrupondem.)<br />
TuB OL.t.soow P1o JaoN lllARKRT-OONTRACT Poa TB& RossiA nr<br />
M ESSRS. JAatiS AND O!!oaos 'l'aowsoN-MBErtNO or TDI Sa.t.aal!OLD&RS<br />
011' TUB .i::DINOUIIOB AND UATUOAT8 lUILWAY Co¥PANYlt1SII<br />
or llL&CtCJ!lotiTJJS' WAGES rs D oMB.lRTO~- l'ae Nsw R •UTI<br />
D&TI\' £BN ~ouTLAND AND l uu11o: SuoaT Su PASSAOB-0oNTIIAOT<br />
POR A Lt.ROB S IIIP BY MES .. as STBIIL! A~D eo., 011' Ga&&NUCK <br />
Tus Ai.lLTA (s.s.)- LA OIICu OP TUB RoB ILLA-LAOIICII BY M.:s,as.<br />
J . AND Jt l:iWAN- MEBTI~O OP TUB Gt.&SOOW PBILOSOPOICJ.L<br />
SociETY: Propom.l Public Tt~t•m(J11i·•l w tile 14te Admiral Frtzr(ly:<br />
P_apu by Jamu R Nopin: Paper by Mr. Keddre-LI::.T u11<br />
~ II&IBLS LAUI\COID IN TO& 0LYD8 DUIII~O TOR PAST MONTU-00CK<br />
A~D HAILW.lY ACCOMMODATION AT LB ITU-LAU~CB OP TUC FAIRY<br />
VllnON-S.liLIIIO or TUB UERiu~s-l' as CLYDK Cosrous ll1vs~o•<br />
- LAUI\CU OP TUB L.l009 DY i
•<br />
380 THE ENGINEER.<br />
I between Britain and Ireland ie reduced to the minimum, the time NOTES FROM THE NORTHERN AND EASTERN<br />
being about two hours, while for the north of England and eouth<br />
COUNTIES.<br />
of Scotland it will be by far the cheapeet and most comfortable<br />
route as well as the ahorteet, to the north of Irelaud. Mesera.<br />
(From our oum Corrupondott.)<br />
Robe~t Steele and Company , shipbuilders, Greenock, have oon.tracted H ULL WaST DI!TBtCT Duuu.oa W o&K.S- l!J.NonsTmt GaoLOOro.u.<br />
to build a vOBiel of larg~ .tonnage !or M088rs. George Smith and Soci&TY-HULL Doou: The H'utem &teMion-Bun or Tawa:<br />
Sone, Glasgow, u an addltton ~ thetr numerous fleet . SM!kld: LwU: Sowth Y orklhire- LAUNoa or .&. Soasw Su.t.na<br />
Last week the Malta, a magn,•ftcent sorew steamer, lately butlt by<br />
- llor.r. Docu- Tus ST..t.TE or L.&.NO.t.SBin: Great I mprOtJemmt<br />
Messrs. Jam88 and George 'Ibomson, Glasgow, for the ~essrs. -FALL or ..t. R.t.I LW..t.T V•wu