- 行业: 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 permitted explosive surrounded by a sheath containing a noncombustible powder. The powder acts as a cooling agent and reduces the temperature of the resultant gases of the explosion, and therefore reduces the risk of these hot gases causing a combustible gas ignition.
Industry:Mining
A person appointed by the Surveyor General of the United States to make proper surveys of lode or placer mining claims, prior to the issuing of a patent.
Industry:Mining
A person delegated to the duty of punching or knocking pig iron out of chills or molds at a blast-furnace or pig-casting machine.
Industry:Mining
A person employed in coal mines to apply measures to allay coal dust on mine roadways and along the coal faces. The worker also may be in charge of dust suppression in rock drivages.
Industry:Mining
A person employed on the slag dump to pick out pieces of iron carried to the dump in slag ladles.
Industry:Mining
A person employed to assist the mine foreman in the performance of his or her duties and to serve in his or her place, in the absence of the mine foreman.
Industry:Mining
A person employed to attach and detach the shackles between mine cars either at a junction near the face or at the pit bottom. Cars are attached at the junction to form trains for the locomotive or rope haulage. Another shackler detaches them at the pit bottom for loading into the cage.
Industry:Mining
A person employed to attach and detach the shackles between mine cars either at a junction near the face or at the pit bottom. Cars are attached at the junction to form trains for the locomotive or rope haulage. Another shackler detaches them at the pit bottom for loading into the cage.
Industry:Mining
