- 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 ...
Equipment used to remove impurities -- such as slate, sulfur, pyrite, shale, fire clay, gravel, and bone -- from coal.
Industry:Mining
Erosion by moving seawater, the action of which is largely intensified by detritus carried by it.
Industry:Mining
Erosion that occurs at irregular or varying rates, caused by the differences in the resistance and hardness of surface materials; softer and weaker rocks are rapidly worn away, whereas harder and more resistant rocks remain to form ridges, hills, or mountains.
Industry:Mining
Essentially a heat-flow meter used to measure long-wave radiation as well as solar radiation. It can be used both for daytime and nighttime measurements and to measure the net heat transfer through a surface.
Industry:Mining
Essentially a hydraulic backhoe equipped with an extensible boom that performs the three separate functions of excavation, backfill, and grading.
Industry:Mining
Essentially a large box of refractory material holding from 6 to 200 st (5.4 to 181 t) of glass, through the sides of which are cut ports fed with a combustile mixture (producer gas and air, coke oven gas and air, or oil spray and air), so that flame sweeps over the glass surface. With the furnace is associated a regenerative or recuperative system for the purpose of recovering part of the heat from the waste gas.
Industry:Mining
Essentially a long-stroke piston with a mushroom-shaped foot about 4 in (10 cm) in diameter. It operates on compressed air, which is used to lift the piston and footpiece; their combined weight, in falling, supplies the impact.
Industry:Mining
