- Industria: 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 standard 9-in by 4-1/2-in by 2-1/2-in (22.9-cm by 11.4-cm by 6.4-cm) straight brick.
Industry:Mining
A standard capacity or performance measurement for compressors.
Industry:Mining
A standard for determining the size of particles. The particles are passed through screens with openings of specified size. The size of the particles is determined by the size of the opening through which the particles will not pass.
Industry:Mining
A standard form of coal cutter jib with a sprocket at the end remote from the machine. The sprocket carries a vertical turret or bar and is driven by the cutting chain. The bar makes a vertical cut at the back of the normal horizontal cut.
Industry:Mining
A standard of relative measurement of earthquake intensity. Four such systems are the Mercalli scale, the modified Mercalli scale, the Richter scale, and the Rossi-Forel scale.
Industry:Mining
A standard of resistance in wire. The resistance of 1 ft (30.5 cm) of wire that is 1 mil (25.4 mu m) in diameter.
Industry:Mining
A standard small car in which the car body, of about 2 yd<sub>3</sub>(1.5 m<sub>3</sub>) capacity, is mounted on a turntable in the car frame. The car body may be swung by hand to dump over either side or either end.
Industry:Mining
A standpipe in which water rises and overflows at the hydraulic gradeline.
Industry:Mining
A star-shaped tool for regulating the diameter of, or straightening, a borehole.
Industry:Mining
A started hole drilled sufficiently deep to confine the drill bit and prevent slippage of the bit from normal position.
Industry:Mining
