- 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 ...
An electrical system whereby a circuit is monitored to prevent application or restoration of supply if an earth fault exists.
Industry:Mining
An electrically driven chain coal cutter designed and manufactured by Mather and Platt in 1901 with provision for slewing the jib. A large number of these machines were built. For many years the Hopkinson was the only chain coal cutter built in the United Kingdom.
Industry:Mining
An electrically driven machine including high-pressure pump and special cleaning solution for removing grease and oil from underground mine machines as a prevention of mine fires.
Industry:Mining
An electrically driven machine to raise and hold timbers in place while supporting posts are set after being cut to length by the machine's power-driven saw.
Industry:Mining
An electrically driven machine used to cut coal during longwall mining. Usually used in a double-drum configuration.
Industry:Mining
An electrically driven machine used to make a cut about 10 ft (3.0 m) deep near the bottom of a coalbed.
Industry:Mining
An electrically driven service vehicle to transport greases and oil for servicing the underground mine machinery. It may include a compressor, air storage tank, and fittings to place lubricant at the proper points in the mining machinery.
Industry:Mining
An electrically operated apparatus showing at a distance the exact level of water, as in a reservoir; an electric high- and low-water indicator.
Industry:Mining
An electrically operated, rotating-cylinder viscometer in which the drag is recorded directly on a dial; it has been used in the testing of vitreous-enamel slips.
Industry:Mining
