- 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 small drill used to start a hole in order to insure a larger drill running true to center.
Industry:Mining
A small dumper controlled by a person walking alongside it.
Industry:Mining
A small fan installed underground for ventilating coal faces or hard rock headings that are not adequately ventilated by the air current produced by the mine-ventilation fan. An auxiliary fan is usually from 0.5 to 1.0 m in diameter. It is driven by compressed air or electricity. The auxiliary fan can be used to force or exhaust ventilate the workplace.
Industry:Mining
A small fault scarp at the foot of a mountain range and essentially parallel to the range.
Industry:Mining
A small fenced pulley hung from the roof or side of a haulage road in which the tail rope of a main-and-tail haulage is suspended. It keeps the rope (which is not used for direct 1454 haulage of cars) clear of the roadway and minimizes friction while in motion. The swinging of hanging pulleys and ropes is a hazard to people traveling on the roadway.
Industry:Mining
A small filtering device carried by a miner underground, either on a belt or in a pocket, to provide the miner with immediate protection against carbon monoxide and smoke in case of a mine fire or explosion. The device is used for escape purposes only because it does not sustain life in atmospheres containing deficient oxygen. The length of time a self-rescuer can be used is governed mainly by the humidity in the mine air; e.g., in moist air it will last for a minimum period of 30 min, and in moderately dry atmospheres, for a period of 1 h or more.
Industry:Mining
