- 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 portable dynamo that generates enough electric current to detonate electric blasting caps when the machine rack bar or handle is given a quick, downward push.
Industry:Mining
A portable dynamo that generates enough electric current to detonate electric blasting caps when the machine rack bar or handle is given a quick, downward push.
Industry:Mining
A portable feeding and crushing unit which can move on its own or often be installed in a stationary position. The unit has a feed chain (often referred to as a flight chain) inside a shallow built-on hopper that drags the mined ore into a rotating breaker head (shaft), which has various sizes of breaker heads (known as piks). These piks rotate downward as the chain drags the stone or ore into it, crushing the ore to various sizes depending on the height of the mounted rotating breaker head.
Industry:Mining
A portable feeding and crushing unit which can move on its own or often be installed in a stationary position. The unit has a feed chain (often referred to as a flight chain) inside a shallow built-on hopper that drags the mined ore into a rotating breaker head (shaft), which has various sizes of breaker heads (known as piks). These piks rotate downward as the chain drags the stone or ore into it, crushing the ore to various sizes depending on the height of the mounted rotating breaker head.
Industry:Mining
A portable forge, used by boilermakers and ironworkers, for heating rivets near the work for which they are required.
Industry:Mining
A portable form of dip needle used for indicating the presence of magnetic ores.
Industry:Mining
A portable form of dip needle used for indicating the presence of magnetic ores.
Industry:Mining
A portable hand-operated appliance for bending or curving rails. It incorporates a strong buttress screw thread.
Industry:Mining
A portable instrument designed specif. for measuring low concentrations of benzol, which are potentially dangerous to the health of personnel.
Industry:Mining
A portable instrument for collecting dust samples so that corrective measures can be taken for dust control and the prevention of respiratory diseases. Dust-laden air is impinged in sampling flasks by manual, compressed air, or electrical suction devices. Dust counts are made from the collected air at laboratories with microscopes and counting cells.
Industry:Mining
