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Permissible electrically operated pumps

Effect of asymmetric wear of point attack bits on coal-cutting parameters and primary dust generation

Surface evaluation of the 4M Miniminer System

Conical bit rotation as a function of selected cutting parameters

Device for in situ measurement of coal-cutting forces

Longwall shearer performance using water-jet-assisted cutting

Surface testing and evaluation of hopper-feeder-bolter

Published Year

• 1940-1949 (1)
• 1980-1989 (6)

Subject

• Coal-mining machinery--Testing (7) *
• Bits (Drilling and boring)--Testing (1)
• Coal mines and mining--Dust control (1)
• Coal-cutting bits--Testing (1)
• Coal-mining machinery--Electric equipment (1)
• Coal-mining machinery--Safety measures (1)
• Longwall mining--Equipment and supplies--Testing (1)
• Mechanical wear (1)
• Mine pumps (1)
• Water jet cutting (1)

Author

• Hanson, Bruce D. (2)
• Roepke, Wallace W. (2)
• Brunot, H. B. (1)
• Church, James C. (1)
• Evans, Robert J. (1)
• Gleim, E. J. (1)
• Ilsley, L. C. (1)
• Kovscek, P. D. (1)
• Kwitowski, August J. (1)
• Mayercheck, William D. (1)
• Myren, Theodore. (1)
• Saliunas, Joseph L. (1)
• Wingquist, Carl F. (1)

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