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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 ...
A person who operates a mobile loading machine.
Industry:Mining
A person who operates a mobile loading machine.
Industry:Mining
A person who supervises workers engaged in converting copper matte to blister copper and directs activities concerned with charging converter, blowing charge, pouring of slag and copper, casting of blister copper, and removal of castings.
Industry:Mining
A person who uses a tubber.
Industry:Mining
A person whose duty it is to break up and reduce to safe and convenient size, by blasting or otherwise, any large blocks or pieces of rock that have been blown down by the miners.
Industry:Mining
A person whose work is to make recesses for the cutting disk at the end of coal-cutting machine faces.
Industry:Mining
A person working hard requires about 10 ft<sub>3</sub>/min (283 L/min) of air to supply adequate oxygen.
Industry:Mining
A person working on an endless chain haulage.
Industry:Mining
A person's fingertips are placed against the roof, and then the roof is struck a sharp heavy blow. Such a blow usually sets up easily felt vibrations in an unsound roof.
Industry:Mining
A pervasive, parallel foliation of fine-grained, platy minerals (mainly chlorite and sericite) in a direction perpendicular to the direction of maximum finite shortening, developed in slate or other homogeneous sedimentary rocck by deformation and lowgrade metamorphism. Most slaty cleavage is also axial-plane cleavage.
Industry:Mining
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