- 産業: 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 that combines a drill and a splitter, which is a unique tool designed to apply radial and axial loads to a rock mass, into a single tool that drills and splits rock in recurring cycles.
Industry:Mining
A device that consists of a spring bow very analogous to a section gage. On one arm of the bow is a rubber pad shaped to fit the curvature of the hole. In this pad, slightly recessed, are three electrodes of about diameter 1/2 in (1.3 cm) and located at 1-in (2.54- cm) intervals. These three electrodes are used to record two resistivity curves. One curve is a three-electrode type with a spacing of 1-1/2 in (3.8 cm), and the second is a twoelectrode type with a spacing of 2 in.
Industry:Mining
A device that displays the tracks of charged atomic particles. It is a glass-walled chamber filled with a supersaturated vapor. When charged particles pass through the chamber, they leave a cloudlike track much like the condensation trail of a plane. This track permits scientists to see the paths of these particles and study their motion and interaction.
Industry:Mining
A device that graphically records information such as the time and number of hoists made as well as the delays of idle periods between hoists.
Industry:Mining
A device that graphically records information such as the time and number of hoists made as well as the delays of idle periods between hoists.
Industry:Mining
A device that handles the feed continuously over a belt that is balanced to weigh a stream of ore.
Industry:Mining
A device that lines up a drill steel or string between the mast and the hole.
Industry:Mining
A device that marks the paths of charged particles by photographing the train of bubbles they produce as they move through certain superheated liquids.
Industry:Mining
A device that measures gravity by observation of the period of transverse vibration of a thin wire tensioned by the weight of a known mass; useful for observation at sea.
Industry:Mining
