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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 ...
Eng. A gallery or road extended through goaf or gob.
Industry:Mining
Eng. A grade of coal for household purposes: originally from Wallsend, on the Tyne, but now from any part of a large district in and near Newcastle.
Industry:Mining
Eng. A hard ferruginous crust that forms at the bottom of boggy places above a stiff and impervious subsoil.
Industry:Mining
Eng. A heavy hammer. A drawing or prop mall is a long-handled mall used when withdrawing timber.
Industry:Mining
Eng. A horizontal roof timber in a coal mine; a cap or lid.
Industry:Mining
Eng. A level or airway (return airway) of former workings used in subsequent deeper mining operations for ventilation.
Industry:Mining
Eng. A longwall face crossing the main cleavage planes of the seam at an angle of 45 degrees .
Industry:Mining
Eng. A main working.
Industry:Mining
Eng. A man who regulates the sending out of the full cars from a longwall stall, or gate.
Industry:Mining
Eng. A mass of ore left in a mine.
Industry:Mining