- المجال: 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 ...
A stirring apparatus that causes mercury, which has become floured or mixed with sulfur in amalgamating, to resume the fluid condition, through the agency of mechanical agitation and rubbing.
Industry:Mining
A stoker developed in Germany and used increasingly in that country and in the United States. The hearth consists of a rigid water-cooled matrix. Coal is fed on to this at one end and is moved across it by the vibrating motion to discharge as ash at the other end. The vibrations, with an amplitude of about 1/8 in (3 mm) and in progress for about 5 s every 2 min give a satisfactory feed rate. The rate of feed is controlled by altering the duration of the vibrations.
Industry:Mining
A stone, the appearance of which suggested sand veined with gold, perhaps mottled jasper.
Industry:Mining
A stone-cutting apparatus having no teeth, being a simple iron band fed with sand and water, cutting by attrition.
Industry:Mining
A stony meteorite composed of bronzite and olivine in a friable mass of chondri.
Industry:Mining
A stony or metallic body that has fallen to the Earth's surface from outer space. Adj: meteoritic.
Industry:Mining
A stoper or light compressed-air rock drill, mounted on an air-leg support that not only supports the drill but also exerts pressure on the drill bit.
Industry:Mining
