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United States Bureau of Mines
Industry: Mining
Number of terms: 33118
Number of blossaries: 0
Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources. Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A small tub or truck used for gathering coal in thin seams.
Industry:Mining
A small tunnel or shaft excavated in the center, and in advance of the main drivage, to gain information about the ground and create a free face, thus simplifying the blasting operations.
Industry:Mining
A small valve, usually a needle valve, on the outlet of the hydraulic-feed cylinder on the swivel head of a diamond drill; used to control minutely the speed of the hydraulic piston travel and, hence, the rate at which the bit penetrates the rock being drilled.
Industry:Mining
A small valve, usually a needle valve, on the outlet of the hydraulic-feed cylinder on the swivel head of a diamond drill; used to control minutely the speed of the hydraulic piston travel and, hence, the rate at which the bit penetrates the rock being drilled.
Industry:Mining
A small valve, usually a needle valve, on the outlet of the hydraulic-feed cylinder on the swivel head of a diamond drill; used to control minutely the speed of the hydraulic piston travel and, hence, the rate at which the bit penetrates the rock being drilled.
Industry:Mining
A small wagon, running on rails, which tips sideways.
Industry:Mining
A small wooden wedge hammered between the joints of tubbing plates.
Industry:Mining
A small, bowl-shaped depression on a bedrock surface, where water may gather; esp. a water hole in the bed of an intermittent stream, formed at the foot of a cliff by the action of falling water when the stream is in the flood stage.
Industry:Mining
A small, circular shaft furnace with three or four tuyeres, for lead smelting.
Industry:Mining
A small, compressed-air drum haulage or hoist used for lifting, dragging, or skidding work in mines. With capacities ranging from 660 to 4,400 lb (300 to 2,000 kg), these winches have powerful piston motors and are capable of continuous operation. They are easy to move from job to job and are used for shaft sinking and moving wagon drills at quarry and opencast operations.
Industry:Mining
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