coal trade bulletin - Clpdigital.org

48 THE COAL TRADE BULLETIN.
1912. 1911.
Morganfield Coal & Mining Co. 34,769 31,729
Beaver Pond Coal Co 34,070 24,132
Pioneer Coal Co 33,888
New Laurel Coal Co 32,757 34,243
Monarch Coal & Coke Co 32,557 41,741
Uniontown Coal & Mining Co.. 31,547 10,182
Harlan Town Coal Co 31,220
Peoples Mining Co 31,089 29,397
River & Rail Coal & Coke Co.. 30,989 39,457
Kewanee Coal Co 30,509 13,743
Peerless Coal Co 30,302
Fern Hills Coal Co 29,739 29,960
Panama Coal Co 29,450
Mary Lucke Coal Co 29,079 1,220
Cedar Point Coal Co 28,158 15,149
Big Run Coal Co 27.917 46.998
Empire Coal & Coke Co 27.825 25,471
Sebree Mining 6 Development
Co 27,339 18,977
R. L. Forsythe 26,704 19,910
Leeper Coal Co 26,061 18.S44
Campbell Coal Mining Co 24,247 51,080
Greasy Creek Coal Co 24,100
Climax Coal Co 23,874
John Archbold Coal Co 23,626 31,788
Falls Branch Jellico Coal Co,. . 23,538
Henry Clay Coal & Coke Co.. . 23,388 22,407
D. R. Clere 23,060 20,307
Watts Jellico Coal Co 22,653 16,322
Mitchell Coke Co 22,009 20,663
Brent Hart Manufacturing Co. 21,900 S.0S0
Preston Coal Co 21,790 22,905
New Victoria Coal Co 20,661 19,235
West Jellico Coal Co 20,200 30,223
Shelby Coal Co 20,017 1,424
9S companies producing less
than 20,000 tons each 811,510 824,499
36 companies not appearing on
1912 report 351,889
Total 16,323,904
The Cambridge Collieries Co.. Cambridge, 0., is
dismantling its old Midway mine. The tipple of
the mine was burned some months ago and now the
company is taking up the rails, getting out all
the timber, machinery ancl pipes that are of value.
NEW TYPE MOTOR IS ATTRACTING ATTENTION.
The Robinson Ventilating Co., Jenkins Arcade,
Pittsburgh, has installed at the Aultman mine of
the Jefferson & Clearfield Coal & Iron Co.. near
Jacksonville. Pa., a new Robinson,
Turbine Reversible Fan. 5 feet, 3
inches in diameter, direct connected
to a 100 horsepower motor built by
the General Electric Co. The fan
has a capacity of 100,000 cubic feet
of air per minute against a 3-inch
water gauge, running at a speed
of approximately 360 revolutions
per minute.
The motor is direct connected to
the fan by a flexible coupling as
shown in the accompanying illustration,
and the motor is run on a
440 volt, phase, A. C. The cur­
rent is brought from a power house
about 8 miles away and reaches the
motor house at 6.600 volts, and is
there transformed, through the
transformer shown at the right of
the illustration, to 440 volts.
on a mine fan and its performances are being
watched with interest by the manufacturers and
niining men in general. As soon as the weather
The motor is polyphase, brush
changing, and through the use of
New Changeable Speed Motor at Aultman Mine of the Jefferson
and Clearfield Coal and Iron Company.
the wheel, shown in the front of the illustration, permits considerable testing of the motor will be
the speed of the motor can be changed from one- clone, to give the manufacturers accurate data as
third speed to full speed ancl any desired speed to its work. The motor is runing at present very
can be obtained.
economically, ancl at its present load is giving
This motor is the first of the kind ever operated entire satisfaction.