- 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 ...
The combined cuttings and residue from drilling and sedimentary rocks and formations, commonly known as sand pumpings.
Industry:Mining
The combined resistance caused by the friction of the journal and the wheel tread. It can range from 12 to 20 lb (5.44 to 9.07 kg), but for practical purposes may be taken as 15 lb (6.8 kg), as the locomotive represents only a small portion of the total tractive effort.
Industry:Mining
The combustion of coal effected by burning in such a way as to produce a combustible gas, which is then burned secondarily in the laboratory or the furnace.
Industry:Mining
The comminution of materials in a suitable mill without the presence of a liquid, either by rods, balls, or pebbles, or autogenously, by the material itself; used if the subsequent process is a dry process.
Industry:Mining
The common expression used for mining the coal in the pillars of a mine; robbing pillars.
Industry:Mining
The common form of rolled steel joist in which the inner surfaces of the flanges are tapered, normally at an angle of 98 degrees to the web.
Industry:Mining
The compaction of sticky cuttings that collect and adhere to the walls of a borehole.
Industry:Mining
The complete filling of a borehole with cement to prevent the entry of water into mine workings.
Industry:Mining
The complete filling of the waste area behind a longwall face with stone and dirt. The packing operation may be by hand or mechanical methods, e.g., pneumatic stowing.
Industry:Mining
