Miners Operating a Cutting Machine at Mine No. 32, Consolidation Coal Company, Owings, W. Va.
Date:
1950/10
Description:
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.'
Double Decker Drill in Operation at Georgetown Mine, Georgetown, Ohio, Hanna Coal Company
Date:
1950/10
Description:
Caption on back reads, 'Stiff-arming a highwall is the job of this new, double-decker drill in operation at the Georgetown mine, Hanna Coal Co., at Georgetown, Ohio. Fruit of the ingenuity of coal mining engineers, the drill makes two blast holes at different levels in the highwall, permitting a blasting shot that brings down a large section of 'overburden.' The 'overburden,' rock, shale, limestone, clay and other mineral deposits, lies above the coal seam. Surface, or open-pit mining, accounts for 23 percent of total bituminous production. The Georgetown mine is the largest surface mine in the world.'
