- 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 device used in soil testing, consisting of flat blades affixed to the end of a rod. It is forced into the soil, and the torque required to shear the soil, in situ, is determined as a measure of the shear strength of the zone tested by rotating the device.
Industry:Mining
A device used in soil testing, consisting of flat blades affixed to the end of a rod. It is forced into the soil, and the torque required to shear the soil, in situ, is determined as a measure of the shear strength of the zone tested by rotating the device.
Industry:Mining
A device used like a core spring, consisting of a series of tapered wedges contained in slotted recesses in a circular ring or sleeve; as the core enters the inner tube, it lifts the wedges along the taper, and when the barrel is lifted, the wedges are pulled tight against the core.
Industry:Mining
A device used to a limited extent to load solid blocks of coal. The scow proper is a flat steel plate that is moved underneath the undercut and blocks the coal by means of a hoist and a tail rope. The coal is then wedged down on the scow, and the solid block is hauled 2787 by means of the hoist and a headrope to a delivery point where it is transferred to cars.
Industry:Mining
A device used to drive an auxiliary shaker conveyor without changing the direction of the main conveyor. It consists essentially of two driving arms, placed at right angles to each other and supported at their pivot point by a fulcrum jack. When these driving arms are attached to the main and auxiliary conveyors, the reciprocating motion of the main conveyor is transmitted to the auxiliary conveyor, which can then discharge its load onto the main conveyor.
Industry:Mining
A device used to identify and to measure the radiation in the body (body burden) of humans and animals. Uses heavy shielding to keep out background radiation, ultrasensitive scintillation detectors, and electronic equipment.
Industry:Mining
A device used to measure differential strains in a drill hole.
Industry:Mining
A device used to measure precipitation (melted snow, sleet, or hail as well as rain). It consists of a receiving funnel, a collecting vessel, and a measuring cylinder.
Industry:Mining
A device used to measure precipitation (melted snow, sleet, or hail as well as rain). It consists of a receiving funnel, a collecting vessel, and a measuring cylinder.
Industry:Mining
A device used to measure precipitation (melted snow, sleet, or hail as well as rain). It consists of a receiving funnel, a collecting vessel, and a measuring cylinder.
Industry:Mining
