- 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 ...
(South Staffordshire, England) A hoisting chain, the iron links of which are filled with small blocks of wood.
Industry:Mining
(South Staffordshire, England) A large sheet placed as a curtain or partition across a gate road to stop and turn an air current.
Industry:Mining
(South Staffordshire, England) A solid rib or wall of coal left between workings to confine gob fires.
Industry:Mining
(South Staffordshire, England) A system of working thick coal, being a kind of bord-and-pillar plan, the main roadways being first driven to the boundary.
Industry:Mining
(South Staffordshire, England) Cutting the sides of the upper lift of a working place in a thick coal colliery next to the rib, preparatory to breaking the coal.
Industry:Mining