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A man inspecting a Joy Continuous Miner.
View of a Joy Continuous Mining machine.
A Continuous Mining Machine on display above ground.
A Joy Manufacturing Co. Continuous Mining Machine. ML 5196 DIO57.
A continuous miner, model 2BT-2 Twin Borer, sits on display.
Joy executives stand beside a continuous mining machine.
A large Marietta Miner Continuous Mining Machine.
Man operating a JMC1 continuous miner.
Two men standing next to a continuous mining machine.
A continuous mining machine operating in a four foot seam.
Continuous miner in action.
Two men using large bits to drill prior to placing charges.
Two men working on the loading machine.
Two men working with a rubber tire mounted cutting machine.
Two miners cut coal at Pursglove No. 15
Caption on back reads, 'Making a cut in the coal face is this Mastodon of the machine age - an underground cutter.  Rubber tired for mobility, and mounting a 9-foot cutting blade armed with whirring steel bits, it can cut a full 360 degree arc.  This and similar machines give America's bituminous coal mines almost unlimited capacity for production.'
Two miners operate a track mounted coal cutting machine.
A gear driven cutting machine stands on the track.
Two miners operate the breast type coal cutting machine.
Two men operating a loading machine.
Man cutting coal in Consol. Coal Co. Mine in Kentucky. Note the roof supports using jacks.
Two men cutting coal in the parting.
A miner operating a coal cutting machine.
Miner on a small, track mounted, cutting machine.
Miners at work with loading machine and shuttle car.
Men at work with loading machine and shuttle car. Probably Joy Machinery.
Close-up view of roof drill in action. Man in background is tightening bolt with air powered wrench at Consol. No. 204, Jenkins, Ky.
A coal cutter with nine foot cutting blade at work in Consol. Coal Co. Mine No. 32, Owings, W. Va.
Miners and filled coal cars inside a mine.
Miners talking while others run drilling equipment.
Miners using a machine to bolt the mine roof.
Two miners operating a loading machine.
Mountaineer Coal Company, Division of Consolidation Coal Company.
1-Mining machine, electrically operated, 2. Electric locomotive and coal car train leaving mine, 3. Shaker screen for sorting coal according to size, 4. Coal powerhouse and tipple.
Rear end of loaded coal car in an underground mine.
Miner watches as coal loads into a shuttle car.
Coal cutting machine digs into the coal seam.
Continuous mining machine at work.
Pittsburgh Consolidation Coal Company mine.<br />
Close view of a conveyor and engine.
View of a conveyor and engine at a coal mine operation in Thomas, W. Va.
Close view of a conveyor and engine at a coal mine operation in Thomas, W. Va.
Close view of a conveyor and engine at a coal mine machine shop in Thomas, W. Va.
View of a conveyor in a machine shop at a coal mine in Thomas, W. Va.
Close view of a conveyor at a coal mine shop in Thomas, W. Va.
A continuous miner in action.
Continuous miner in action.
Piece of machinery sitting outside on a white sheet.
Machinery outside sitting on a white sheet.
Two miners operate a Sullivan cutting machine.
Miners operating a cutting machine.
Two miners work with a machine to undercut coal.
Cutting machine in operation at the Pocahontas Exhibition mine, Pocahontas Va. on the Norfolk and Western Railway. 'Permission is granted to reproduce this photograph only on condition that all reproduction shall bear the following credit line: Photograph by Norfolk and Western Railway.'
Two miners at Pursglove No. 15 cut coal preparatory to shooting it down for loading.
Two miners work with a cutting machine at Mine 206, Kentucky. 'This material is the property of the Consolidation Coal Co. and must be returned promptly to: Advertising Department, Consolidation Coal Company, 30 Rockefeller Plaza, New York, N.Y.
A very large cutting machine being operated by a miner. 'Credit must be given to William Vandivert, Not to be reproduced without written liscense.
'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.'
A miner working with machinery on the exterior of a mine.
Two miners dust the side walls of Mine No. 207 for safety.
Miner using a very small cutting machine.