- 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 ...
Consists of three boards bolted or spiked together with the center board offset. This arrangement produces a tongue and groove that makes Wakefield sheet piling fairly watertight if the piles are properly driven and tightly fitted together.
Industry:Mining
Consists of three horizontal rolls, one above the other, each rotating continuously in one direction only, the piece being rolled between the bottom and middle, and middle and top rolls alternately.
Industry:Mining
Consists of three operations: the top material is cast out of the way; pay material is dug and trucked away; and the top is pushed or cast back in.
Industry:Mining
Consists of two concentric tubes bent in an L shape. In operation, the instrument is pointed in the direction of air flow: the inner tube, open at the end directed upstream, measures total head, and the outer tube, perforated with small openings transverse to the air flow, records static head. Each tube is connected to a leg of a manometer, when reading velocity head.
Industry:Mining
Consists of two or more joint sets or any group of joints with a characteristic pattern, such as a radiating pattern and a concentric pattern.
Industry:Mining
Consists of two or more shaker conveyor troughs, nested, to be installed on the discharge end of the pan line so as to provide for adjustment of the position of the discharge point. After adjustment, they are locked in place.
Industry:Mining
Consists of two steel bridge trusses braced together so as to form between them a runway on which a bucket-carrying trolley runs.
Industry:Mining
Consolidation of fine-grained waterlogged soil, enabling excavation to proceed, can be effected by freezing. The process, which dates from 1862, is particularly suitable for shaft sinking.
Industry:Mining
Consolidation of sedimentary material, at essentially constant pressure, resulting from internal processes such as recrystallization.
Industry:Mining
