- 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 ...
A string of pipe lowered into a string of drill rods that is frozen in a borehole drilled into permafrost, through which water is circulated to thaw the ice and free the drill rods.
Industry:Mining
A strip across an area through which neither fire nor noxious gases can penetrate. It involves not only sealing of stopes but levels also.
Industry:Mining
A strip across an area through which neither fire nor noxious gases can penetrate. It involves not only sealing of stopes but levels also.
Industry:Mining
A strip across the area in which no combustible material is employed, or in which, if timber supports are used, sand (not waste rock) is later filled and packed tightly around them. Where timber is not used in stope supports, the firebreaks are simply stretches in the levels or winzes in which timber lagging is replaced by some other substance, such as steel or concrete.
Industry:Mining
A strip of metal applied to any particular device to take the wear of moving parts or objects. In conveyor work, it refers to the strip that is sometimes applied to the chain conveyor troughs and on which the drag chain rides.
Industry:Mining
A stripping method using two draglines, one of which strips and casts the overburden while the other recasts a portion of the overburden.
Industry:Mining
A stripping; an opencut mine in which the overburden is removed from a coalbed before the coal is taken out.
Industry:Mining
A strong carriage of low height for transporting timber from the surface stockyard to underground workings. It consists of a timber or steel base, mounted on wheels, with Ushaped arms in which the timber is lashed with chains.
Industry:Mining
A strong frame shaped like an isosceles triangle, turning on a pivot at its apex and used as a bell crank to change the direction of a main pump rod. It is used with Cornish pumping engines.
Industry:Mining
A strong steel vessel used for determining the heat produced during combustion; used, for example, for determining the calorific value of a fuel.
Industry:Mining
