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United States Bureau of Mines
行业: 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 ...
Any conveyor designed to permit accumulation of packages or objects. Usually roller, live roller conveyor, roller slat conveyor, or belt conveyor.
Industry:Mining
Any conveyor that is used to gather coal from other conveyors and deliver it either into mine cars or onto another conveyor. The term is frequently used with belt conveyors placed in entries where a number of room conveyors deliver coal onto the belt.
Industry:Mining
Any conveyor used for transporting ore or waste from one room or working place through a crosscut to an adjacent room or working place. Used principally where the cross conveyor receives ore or waste from a conveyor and delivers it to another conveyor or a car.
Industry:Mining
Any conveyor used to discharge material at a point higher than that at which it was received. Term is specific. applied to certain underground mine conveyors.
Industry:Mining
Any conveyor, such as apron, belt, chain, flight, pan, oscillating, screw, or vibrating, adapted for feeder service.
Industry:Mining
Any crystal class with less symmetry than the distribution of points in its lattice.
Industry:Mining
Any crystal face permitted by the symmetry of crystal structure but not appearing on a particular mineral specimen.
Industry:Mining
Any crystal form with fewer faces than the holohedral equivalent for the crystal system. Compare: hemihedral; holohedral.
Industry:Mining
Any crystallographic plane that is parallel to the principal axis of a crystal.
Industry:Mining
Any curve used to show the relationship between properties of coal and results of a specific treatment.
Industry:Mining
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