coal trade bulletin - Clpdigital.org

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a manner similar to application for tests of lamps.
The necessary expenses involved in testing port­
able electric mine lamps have been determined,
and the following schedule of fees to be charged
on and aftei the date of issue of this schedule has
been established and approved by the Secretary ol
the Interior:
For an official investigation of a portable
electric mine lamp to determine its per­
missibility, the investigation to include
tests ol tbe safety devices, and the deter­
mination of the time of burning, flux of
light, intensity of light, distribution of
light, bulb characteristics, and leakage of
electrolyte $100.1111
For additional necessary tests under the
same investigation (for each five tests
or fraction thereof) 2 50
For tests to determine only time of burning,
flux of light, intensity of light, distribu­
tion of light, bulb characteristics, and
leakage of electrolyte 56.00
For tests to determine only bulb life, varia­
tion in bulb candlepower, and variation
in bulb current consumption 36.00
Manufacturers who submit lamps for tests to
determine permissibility for use in gaseous mines
will lie required to furnish certified check or bank-
draft, made payable to the Secretary of the Interior,
to cover the total fees required for the de­
sired tests. Such fees must be received at least
two weeks prior to the date set foi* beginning tin
tests; otherwise the equipment of the next applicant
upon the list will be tested.
If any lamp equipment, submitted is disapproved
liefore it has been subjected to all the tests, the
following refunds will he made to tin- manufacturer:
If all or a part of the tests on the safety devices
have been completed but no other tests have been
made. $50 will be refunded.
If the tests of the safety devices have been completed
and the investigation of the
II.IX OF LIGHT,
intensity of light, and distribution of light has
been begun but is not more than half completed,
$25 will be refunded.
Synopsis of procedure to be followed in making
application for tests, submitting material, conducting
tests, and notifying applicant of results:
1. Application for tests should be addressed to
the director of the Bureau of Mines. Washington,
1). ('. This application should be accompanied by
check or draft and by a complete description of
the lamp to be tested and a set of the drawings
described in paragraph 2. Duplicate copies
of the application, description and draw­
ings should lie sent to tbe electrical engineer.
THE COAL TRADE BULLETIN.
Bureau of Mines, Fortieth and Butler streets, Pitts­
burgh. Pa., accompanied by a single complete lamp.
equipment.
2. As soon as the application has been reviewed
by the bureau's engineers, the applicant will be
notified of the date of test and the number of
lamps and lamp parts that it will be necessary for
him to submit.
3. After receiving this notification the appli­
cant should send the material required to tbe elec­
trical engineer. Bureau of .Mines. Fortieth and But­
ler strets, Pittsburgh, Pa. This material should
be delivered not less than one week in advance of
the date set for tbe beginning of the lests. At
this time tue applicant should state tlie name and
address of the applicant's representative who will
witness tlie tests.
1. On the date of the test a previously prepared
schedule of the tests to be made will be submitted
to the applicant or his 1 epresentative for examinalion
and discussion prior to the beginning of the
tests
After the bureau's engineers have considered the
results of the tests, a foimal report of the approval
or disapproval of the lamp will be made to the
applicant in writing by the director of tlie Bureau
of Mines. No verbal report will be made and the
details ol' the tests must be regarded as confidential
by all present.
•I. A. HOLMES, Director.
Approved, Feb. 20, 1914.
Franklin K. Lane, Secretary.
I' CONSTRUCTION and DEVELOPMENT
Ivor Thomas, of Boswell, Pa., has purchased a
200-acre tract of coal between Boswell and Ralphton
and will open a drift within a short time.
It is the intention to ship 1,00(1 tons of coal
daily to the eastern markets. The new mine will
be located along the Boswell branch of the Baltimore
& (ihio Railroad.
The Massillon Coal Mining Co., of Massillon, O.,
will open three new mines on its property near
that city. This announcement was made imme­
diately following the destruction of its tipple
April 30 by fire.
The Shawmut Mining Co. is reported to be
planning two new mines on the opposite side of
the Allegheny river from Logansport, Pa. It is
said $800,000 will be expended in opening the
properties.
The Connellsville Coke Co., in addition to repairing
its ovens at Dexter, will build a new tram­
way 2,000 feet long to connect its mines and ovens.