- 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 ...
The painting of the mine roof with a coal-tar paint that seals the bottom strata of the roof to prevent air from entering the crevices of the roof.
Industry:Mining
The part of a diamond or rotary drill that grips and holds the drill rods or kelly and by means of which longitudinal and/or rotational movements are transmitted to the drill rods or kelly.
Industry:Mining
The part of a lever between the fulcrum and the point where force is applied.
Industry:Mining
The part of a lode above the water table, from which some ore has been dissolved by down-filtering meteoric or spring water.
Industry:Mining
The part of a mining belt conveyor that consists of the framing and the belt idlers supported by the framing, both of which guide and support the belts between the head end and the tail end. There are two general types of intermediate sections: rigid side framed and wire-rope side framed.
Industry:Mining
The part of a mining belt conveyor that consists of the tail pulley, the framing, belt idlers if included, and means for attaching a belt takeup.
Industry:Mining
The part of a polariscope that receives the light after polarization and exhibits its properties. In a petrographic microscope, it is the polarizing mechanism (Nicol prism, Polaroid, etc.) that intersects the light after it has passed through the object under study.
Industry:Mining
