- 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 ...
Rooms driven in inclined seams in such a way that an adequate gradient is secured for cars, which are often hauled to the heads of the rooms.
Industry:Mining
Rope or strand construction in which wires or strand are laid in a helix having a righthand pitch.
Industry:Mining
Ropes of which the layers of wires in strands have all been laid to the same length of lay. Also known as parallel lay.
Industry:Mining
Rotary drier or kiln, in which material is worked through a horizontal cylinder counter to drying or heating gas blown through by fan.
Industry:Mining
Rotating horizontal drum that receives ore at one end and water at the other. Ore is tumbled countercurrent to the water so that coarse solids are discharged continuously while water now charged with mud and fine material overflows at the feed end.
Industry:Mining
Rough guess of distance separating two approaching drives underground made by knocking with a heavy hammer.
Industry:Mining
