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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 ...
A grinding wheel that has a glazed or clogged surface from particles of the material being ground.
Industry:Mining
A gripping device used to grip and hold rods or casing while coupling or uncoupling them as they are being run into or pulled from a borehole.
Industry:Mining
A gripping device used to grip and hold rods or casing while coupling or uncoupling them as they are being run into or pulled from a borehole.
Industry:Mining
A gripping shot or opening shot used to make the first opening in a straight-room face, or to start a breakthrough.
Industry:Mining
A grizzly in the form of a stationary bar screen, often improvised from bars or rails set longitudinally, without cross bars. If used as a chute it has a slope of 35 degrees to 45 degrees . It may allow suitable pieces of coal or ore to pass over, and the unwanted small sizes drop through, or it rejects oversize pieces while allowing suitable material to drop through.
Industry:Mining
A grizzly type of belt consisting of two strands of endless chain connected by through rods at each articulation, on which are carried a series of plates or bars mounted in a vertical plane for the purpose of rough screening while conveying.
Industry:Mining
A grizzly type of belt consisting of two strands of endless chain connected by through rods at each articulation, on which are carried a series of plates or bars mounted in a vertical plane for the purpose of rough screening while conveying.
Industry:Mining
A groove incised in the face and outside wall of a noncoring bit that serves as a waterway.
Industry:Mining
A groove incised in the face and outside wall of a noncoring bit that serves as a waterway.
Industry:Mining
A groove or bar across sluices for washing gold.
Industry:Mining