- 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 mechanism by which grout may be pressure-injected into a grout hole. Compare: grout injector
Industry:Mining
A mechanism by which small plagioclase crystals float into growing phenocrysts of potassium feldspar. Also, said of the texture of a rock showing such crystals. Etymol: Greek, to swim together.
Industry:Mining
A mechanism consisting of some form of two forks coupled together by means of a cube or sphere provided with projecting pins extending through holes provided in the outer end of each branch of the fork. When inserted between the bit and the drill rods, the mechanism can be used to deflect a borehole. A similar mechanism often is used as a connection between two shafts on a machine when the ends of the shafts are placed at an angle to each other.
Industry:Mining
A mechanism in which the takeup or movable pulley travels in an approx. horizontal plane.
Industry:Mining
A mechanism in which the takeup or the movable pulley travels in a vertical plane.
Industry:Mining
A mechanism that provides a variety of gear ratios for different load conditions, speed, or direction of rotation.
Industry:Mining
A mechanism that simulates rocking, bumping, and sluicing action used in panning and gives precise information as to the possibility of gravity treatment of sands. It is used in rapid assays and as a research aid.
Industry:Mining
A mechanism utilized to apply heavy pressure from a small applied force, such as in a jaw breaker, and other machinery.
Industry:Mining
A medium orange heat, about 655 degrees C, which imparts fineness of grain and toughness to steel that is raised to it and afterwards quenched.
Industry:Mining
A medium- to coarse-grained hypidiomorphic-granular titaniferous magnetite-rich igneous rock with spinel from a few percent to 20%.
Industry:Mining
