- 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 device used for jigging the shaker products of the diamond washer. The products are fed to the jigs, one at a time, and jigged, with frequent stoppages for scraping off the top layer of tailings; more sand is added, and the process is repeated until a product is obtained that consists entirely of concentrates.
Industry:Mining
A device used for measuring the heat flow out of ocean bottom sediment.
Industry:Mining
A device used for raising ore or water from mines, provided with radiating beams to which horses, oxen, or camels may be yoked.
Industry:Mining
A device used for removing water from damp material by evaporation, supplemented usually with forced circulation of air.
Industry:Mining
A device used for the flow measurement of abrasive slurries. The calibration is affected by the presence of magnetic constituents in the slurry, and therefore, a pipe coil is also used to compensate the magnetic flowmeter calibration for varying amounts of magnetic material in the slurry.
Industry:Mining
A device used in a washbox to remove the reject from the washing compartments, operated manually or automatically.
Industry:Mining
A device used in borehole surveying. A tube, containing a compass floating in molten gelatin, is lowered to the point in the borehole at which its verticality is required. It is left in position until the gelatin sets and is then withdrawn. The compass indicates the direction and a small plumb bob shows the angle of dip.
Industry:Mining
A device used in faceting gems; a piece of wood containing a series of holes into which a dop stick (gem stick) can be fixed at various angles, thus regulating the angle of the facet being cut.
Industry:Mining
A device used in faceting gems; a piece of wood containing a series of holes into which a dop stick (gem stick) can be fixed at various angles, thus regulating the angle of the facet being cut.
Industry:Mining
