- 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 trap, the closure of which results from the presence of one or more faults.
Industry:Mining
A traveling hopper for receiving, weighing or measuring, and distributing bulk materials. Usually fitted with a scale, either manually operated or of the automatic recording type. Weigh larries may be suspended between overhead tracks or carried on rails mounted below them. They may be hand-pushed or power-propelled, and some designs provide a riding platform or cab for the operator. A remote-control device for operating the bunker or bin gates is usually mounted on the larry chassis.
Industry:Mining
A traveling-belt screen in which the screen cloth is mounted on a series of separate pallets, thus avoiding bending the screen as it goes over the pulleys.
Industry:Mining
A traverser that moves mine cars laterally and vertically by traveling on an inclined plane. It is sometimes used at the pit bottom for the transfer of cars from a higher decking level to a lower decking level on the opposite side rail track. The cars are held upright in a frame and can handle loaded or empty cars to and from the two levels.
Industry:Mining
A treeless, level or gently undulating plain characteristic of arctic and subarctic regions. It usually has a marshy surface, which supports a growth of mosses, lichens, and numerous low shrubs and is underlain by a dark, mucky soil and permafrost.
Industry:Mining
A triangle that is equilateral or nearly so. In such a triangle any error in the measurement of an angle will be reduced to a minimum.
Industry:Mining
