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36 THE COAL TRADE BULLETIN.
Supplement No. 2 containing descriptions of important
additions and improvements to the various
O-B materials listed in Railway catalogue No. S,
Mine Catalogue No. 9. Catenary Catalogue No. 20
and O-B Hi-Tension Insulator Catalogue No. 10
has just been distributed by the Ohio Brass Co.,
Mansfield, Ohio. The line of mine materials
manufactured by the O-B Company has been especially
strengthened by improvements and additions.
The new Modoc Trolley Clamp, Form 1,
is described for the first time. This clamp is
especially designed for supporting trolley wires
in mines. It is possible to attach it to a trolley
wire just tight enough to hold the wire in position
until it has been stretched. The clamp can then,
by one operation, be permanently tightened upon
the trolley wire and the hanger, thus eliminating
loose joints between the clamp and hand hanger
which it is often impossible to do with other styles
of clamps.
The Carnegie Steel Co., Pittsburgh, is distributing
its new pamphlet entitled "Steel Derricks and
Drilling Rigs" which is just off the press. Three
types of derrick are described—the Woodworth
Standard, the Woodworth Oklahoma and the Yorke
Standard—all of which have their respective advantages.
These derricks are all alike in the
use of structural steel angles for the legs, in the
arrangement of crown blocks and the make-up of
ladders. The design differs in the forms of bracing
and bolting at joints. The steel used in construction
of these derricks and drilling rigs is
that employed generally in bridge and building
construction to manufacturers' standard specifications
and the loads are figured on a factor of safety
of four used in structural steel work generally.
All the stresses are taken care of within the structure
itself and no guy lines or other extraneous
means of support are necessary.
In the June issue of the "Engineering Review"
mention was made of a fan 32 feet high handling
20,000,000 cubic feet per hour as being one
of the largest fans ever built. But there is a
"Sirocco" fan only 13 feet 5 inches in diameter
which delivered on test 36,000,000 cubic feet per
hour—nearly double the capacity and less than
half the size. This "Sirocco" fan ventilates the
pit "Clydach Vale" of the Cambrian Collieries,
Ltd., Glamorganshire, South Wales.
Bulletin No. 135 issued by the American Blower
Co., Detroit, Mich., described the "Ventura" Disc
Ventilating fans, their latest development in
curved blade disc fan design and construction.
This fan delivers large volumes of air with a
power consumption much below that ordinarily
required. The well known "A.B.C." fans for exhausting,
conveying and ventilating are also
treated in a brochure recently published by the
manufacturers.
The Sullivan Machinery Co., Chicago, has issued
an interesting brochure on pneumatic hammer
drills for quarrying, stone dressing and mining
purposes. All these tools are of the type in
which the cutting bit remains against the surface
which is being worked on, and is driven by rapid
blows on the shank from an independent hammer
or piston.
Westmoreland Strike Called Off.
(Continued from Page 26.)
strike was lost. Mother Jones told the International
Board at Indianapolis that it had been a
lost cause since last summer. But Feehan continued
it despite his own conviction that he could
not win, so that he could draw on our National
Union for funds to support the army of his followers
in the field. The result has been the loss of
eighteen lives and the useless and wanton expenditure
of a million dollars of the miners' money,
besides large donations from many of our people
and others in sympathy.
Feehan kept this strike going so that in last
December he could count the votes of the strikers
to continue himself in office. His entire administration
has been a repetition of wild, useless and
lost strikes, including the loss of the Mercer-
Butler field. John P. White and the present
national administration are alike culpable in this
pitiable failure. It adds to their record of letting
the Nova Scotia men go back to work at a 10 per
cent, reduction and the Tuscarawas strikers to re
turn at the operators' terms.
Fraternally yours,
(Signed) ROBERT R. GIBBONS. President.
ABE KEPHART. Vice-President.
ANDREW PU.SKAR. Secretary-Treas.
The Milwaukee-Western Fuel Co., Milwaukee.
Wis., has awarded contracts to the Heyl-Patterson
Co. of Pittsburgh which will give Milwaukee harbor
one of the most modern coal unloading docks
on the Great Lakes. The contract calls for equipment
to cost $500,000 and the old hoisting apparatus
at the foot of Washington street will be torn
down to make way for the new structure. The
dock will be 900 feet long with two 400-feet cranes
running the entire length. The hoists will operate
five-ton grab buckets, and will have a capacity of
300 tons an hour.