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United States Bureau of Mines
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 ...
Installing bars in hitches either cut or drilled in the rib, thereby eliminating the need for legs. Hitch holes may be provided for each individual bar.
Industry:Mining
Instrument for observing liquids' boiling point, esp. for determining a mixture's strength by the temperature at which it boils.
Industry:Mining
Instrument on which diamonds are weighed with weight units calibrated in carats; scales vary from a folding 50-carat-capacity type, small enough to fit in a coat pocket when closed, to those large enough to weigh several thousand carats at one time.
Industry:Mining
Instrument particularly suited to the measurement of very low air velocities and the fluctuating velocities that occur in turbulent flow. Basically, it consists of a wire or wires, usually platinum, supported in a frame and heated electrically. When exposed to an air current, the heated wire cools, and as a result, its electrical resistance alters. The heated wire forms one arm of a Wheatstone-bridge-type circuit, and measurements of resistance change may be correlated with the velocity of airflow that caused that change.
Industry:Mining
Instrument that automatically regulates a process in proportional, integral, and derivative terms, thus neutralizing and removing the errors that arise during operation.
Industry:Mining
Instrument to determine the inclination of the magnetic field.
Industry:Mining
Instrumental tests to determine the amount and direction of deflection of a borehole from vertical and horizontal planes. The instrument is lowered into the hole and tested at intervals of depth. The data obtained may be used to construct a scale model showing the actual course taken by the hole.
Industry:Mining
Insufficient burden of rock in relation to the explosive charge, resulting in a blown-out shot or a premature shot through shock of a neighboring charge of a blast pattern, often yielding less work than expected.
Industry:Mining
Insufficient charging of a ball mill for proper grinding of enamel slip.
Industry:Mining
Insufficiently charred wood, as in charcoal burning.
Industry:Mining