- 行业: 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 ...
The worker who adjusts cables or chains about objects to be lifted; places hook of crane block in bucket bails, and hooks winches to objects to be moved, etc.
Industry:Mining
The worker who operates the duckbill loader when mining with duckbill conveyors.
Industry:Mining
The working and winning of coal or mineral by hand and not by machines. Broadly, hand coal mining would imply hand holing, shot firing, and hand filling.
Industry:Mining
The working area in from the last open crosscut in an entry or a room, including the pillar being extracted or longwall being mined.
Industry:Mining
The working away or removal of blocks or pillars of coal formed by whole workings.
Industry:Mining
The working drift approaching old workings whose exact position is uncertain, bored as a precaution against an unexpected holing.
Industry:Mining
The working face in an excavation or tunnel or other working place from which driving is carried out.
Industry:Mining
The working of 5 to 10 yd (4.6 to 9.1 m) of the coal seam on the dip side of an advance gate. It gives some protection from crush along the rib side and also accommodates dirt from the gate instead of conveying it to the surface.
Industry:Mining
The working of a cable drill up and down on a short length of rope, when passing through the superficial deposits down to bedrock. This section of hole is cased.
Industry:Mining
