upload
United States Bureau of Mines
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 ...
A head covering made of reinforced sheet aluminum or plastic-impregnated fabric and shaped somewhat like a sun helmet; worn for protection and/or to reduce the severity of head injuries from falling objects.
Industry:Mining
A head to a rivet or screw having the shape of a truncated cone.
Industry:Mining
A heading driven horizontally or nearly so, through or across inclined strata.
Industry:Mining
A heading driven in rock. In S. Wales and elsewhere, men employed in hard headings have suffered greatly from silicosis.
Industry:Mining
A heading driven in rock. In S. Wales and elsewhere, men employed in hard headings have suffered greatly from silicosis.
Industry:Mining
A heading driven through very loose ground with close timbering.
Industry:Mining
A heading driven to the rise in a long-way workings.
Industry:Mining
A heading or drift made in various strata.
Industry:Mining
A headway or bord laid with rails, and used for conveying the coal cars to and from the face.
Industry:Mining
A heap of rubbish placed at the entrance of a disused roadway underground.
Industry:Mining