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You searched for: Topical Subjects Coal-mining machinery. Remove constraint Topical Subjects: Coal-mining machinery. Topical Subjects Coal miners. Remove constraint Topical Subjects: Coal miners. Topical Subjects Coal Mines and Mining--Miners at Work. Remove constraint Topical Subjects: Coal Mines and Mining--Miners at Work.
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Two miners operate a cutting machine. 'Credit must be given to Willaim Vandivert, 21 East Tenth St., New York 3, N.Y., Not to be reproduced without written liscense.'
Miners operating mining equipment at Thomas, W. Va. mine.
'A very small cutting machine or a v.m. drilling machine. Probably a cutting machine'
A miner is operating a cutting machine at the Price Hill Colliery Co. mine
Two miners work with a cutting machine at Pursglove No. 15.
'Machine, helper and crew. 350 tons a day, per 8 hour shift.'
Miner with drilling machine at Jamison No. 9.
Miner running a continuous mining machine.
A Joy 10 RU preparing to cut US Royal Cable at Jamison No. 9.  Stonega Coke and Coal.
Miner using a 11 BU loading machine at Jamison No. 9. Stonega Coke and Coal.
Jeffrey 290 cutting trench for 2200 volt line at Jamison No. 9.  Stonega Coke and Coal.
Two miners work with a Joy roof bolt drill at Jamison No. 9.
A modern coal cutting machine in operation at Bishop Mine.
Miners using a cutting machine at Mine 32, Consolidation Coal Co.
Miner works with cutting machine at Jamison No. 9 mine.
Two miners standing next to drilling machine.
Miner using machine to cut coal.
Two miners work with a mining machine. 'Compliments of Jeffrey Manufacturing Co.' John Williams, Coal Life Project.
A miner works on a piece of machinery on the interior of the mine. John Williams, Coal Life Project.
Miner using a very small cutting machine.
Two miners dust the side walls of Mine No. 207 for safety.
A miner working with machinery on the exterior of a mine.
'All White Oak mines are electrically equipped and of course this mining machine is operated by electricity. The machine is mounted and transported on a specially designed truck and moves under its own power from one working place to another. It is taken from the truck by the machine operator and his helper and moved to the place of the coal and place in cutting position as you see it in this picture. The machine consists of an endless chain with 'bits' inserted, which act as cutters. The machine cuts a 'kerf' or hole along the bottom of the coal about 4 inches high and extending back six feet under the coal. The fine coal made by this machine is what is commonly known as 'bug dust.' Cutting machines are operated at night and each machine is capable of cutting twenty places on each shift. These machines are operated on tonnage basis and these operators earn high wages.'