- 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 ...
Explosives loaded in the hole bottom at a weight or density in excess of the main charge in order to fragment difficult to break rock or to break an excessive toe burden.
Industry:Mining
Explosives not individually packaged in a form usable in the field. Includes ammonium nitrate-fuel oil, slurries, water gels, and other similar blasting agents; often loaded directly into blast holes from a bulk delivery truck.
Industry:Mining
Explosives that contain a mechanical mixture of substances that consume and give off oxygen with one or several simple explosives. They can be regarded as mixed explosives with an addition of one or more simple explosives as sensitizers, which makes for easier initiation of the mixture and gives greater assurance of complete transformation.
Industry:Mining
Extends from the exploder along the shot-firing cable, detonator wires, and finally the detonator. The shot-firing circuit is the path taken by the electric current from the exploder when a shot is detonated.
Industry:Mining
Externally impressed signal series that connects several controllers or resetting devices in series.
Industry:Mining
Extra payment to miners who work in a wet place, either by the yard of progress or the ton of coal mined.
Industry:Mining
Extra tooth designed for driven wheel so that its total number of teeth is not a multiple of those of the driving pinion.
Industry:Mining
