- Industry: 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 ...
An instrument used to measure the small pressure differentials below atmospheric; e.g., an inclined manometer to measure the pressure difference between a flue and the atmosphere for combustion control.
Industry:Mining
An instrument used to measure variations in the Earth's magnetic field while being transported by an aircraft.
Industry:Mining
An instrument used to produce enlarged images; it consists of a lens (or lenses) of the objective and an ocular set into a tube, with or without other accessories, and held by an adjustable arm over an object stage.
Industry:Mining
An instrument well suited for measuring the strain on a rock face. It consists essentially of an invar steel bar with a fixed point at one end and a movable point attached to a rider at the other end. The rider may be moved along the bar between two stops, and the extent of movement is indicated by a dial gage attached to the bar.
Industry:Mining
An instrument, designed but not applied, for measuring the gradient of the magnetic intensity.
Industry:Mining
An instrument, that in its usual form consists of an ocular containing a fine wire that can be moved across the field by means of a thumbscrew for the purpose of measuring size.
Industry:Mining
An instrument, which may be lowered into the sea from a vessel at anchor or underway, to record temperature as a function of depth. The temperature-sensing device is a Bourdon tube, the depth finder is a bellows system. Accuracy of temperature is + or - 0.1 degrees F (+ or - 0.056 degrees C); depth + or - 10 ft (3.0 m). Abbrev. bt.
Industry:Mining
