- 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 automatic feedback control system for mechanical motion; it applies only to those systems in which the controlled quantity or output is mechanical position or one of its derivatives (velocity, acceleration, and so on). Also known as servo system.
Industry:Mining
An automatic gate used in placer mining when there is a shortage of water. This gate closes a reservoir until it is filled with water, when it automatically opens and allows the water to flow into the sluices. When the reservoir is empty the gate closes, and the operation is repeated.
Industry:Mining
An automatic weighing device for use on belt conveyors. The device feeds the material from a hopper in a uniform stream onto a short independent belt conveyor and from there onto the main belt or bin. The weight of material on the measuring belt actuates a scale beam that raises or lowers a gate controlling the rate of flow from the feed hopper to a certain predetermined load per foot of measuring belt. A meter records the travel of measuring belt, and this figure multiplied by the weight per foot of belt, as fixed by the scale beam adjustment, gives the weight of material handled in any given period.
Industry:Mining
An automatic, timed sampling device used at mill feeds and other plants.
Industry:Mining
An automatically operated gate placed at the top of a mine shaft, or at landings, to guard the entrance, to prevent anyone from falling into the shaft.
Industry:Mining
An auxiliary combination for gas-fired boilers that provides an incandescent surface for lighting gas instantly when turned on after being shut off for any reason.
Industry:Mining
An auxiliary combination for gas-fired boilers that provides an incandescent surface for lighting gas instantly when turned on after being shut off for any reason.
Industry:Mining
An auxiliary combination for gas-fired boilers that provides an incandescent surface for lighting gas instantly when turned on after being shut off for any reason.
Industry:Mining
An auxiliary crosscut made in thick deposits across an orebody for the purpose of dividing it into sections along strike. It is used only a short time and runs across the thickness of the deposit only.
Industry:Mining
