- 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 ...
Eng. The bottom edge of a shaft circle where it is open to the seam workings.
Industry:Mining
Eng. The direction of a place or a face being taken at right angles to the main cleavage planes of a seam.
Industry:Mining
Eng. The forked end of a bucket-pump rod; used for attachment to the traveling valve and seat.
Industry:Mining
Eng. The largest lumps of coal sent to the surface, or all coal that is handpicked or does not pass over screens; also the largest coal that passes over screens.
Industry:Mining
Eng. The lower subdivision of the Aptian sponge gravel; Faringdon, Berkshire.
Industry:Mining