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Stoppings for ventilating coal mines

Face ventilation in underground bituminous coal mines :performance characteristics of common jute line brattice

Directionally controlled drilling to horizontally intercept selected strata, upper Freeport coalbed, Green County, Pa.

Drainage of methane from the overlying Pocahontas no. 4 coalbed from workings in the Pocahontas no. 3 coalbed

Published Year

• 1960-1969 (2)
• 1970-1979 (2)

Subject

• Coal mines and mining (4) *
• Mine ventilation (4) *
• Boring (1)
• Methane (1)
• Mine gases (1)

Author

• Bercik, George R. (1)
• Cervik, Joseph, (1)
• Dalzell, Robert W. (1)
• Diamond, W. P. (1)
• Fields, H. H. (1)
• Finfinger, Gerald L. (1)
• Frances, Angelo. (1)
• Kawenski, Edward M. (1)
• Mitchell, Donald W. (1)
• Oyler, David C., (1)

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