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Studies of roof movement in coal mines.

Contact potential in electrostatic separation

Some information from an investigation on methods of confining cardox blasting devices in boreholes in certain coal mines

Carbonizing properties of Beckley-bed coal from Stanaford no. 1 mine, Mount Hope, Raleigh County, W. Va.

Published Year

• 1940-1949 (4) *

Subject

• Coal mines and mining (4) *
• Blasting (1)
• Boring (1)
• Electrostatic separators (1)
• Mine roof control (1)

Author

• Birge, G. W. (1)
• Brewer, R. E. (1)
• Davis, Joseph Dana, (1)
• Fraas, Foster. (1)
• Greenwald, H. P. (1)
• Griffith, F. E. (1)
• Maize, Earl R. (1)
• Ode, W. H. (1)
• Ralston, Oliver C. (1)
• Reynolds, D. A. (1)
• Seeling, C. H. (1)
• Thomas, Edward. (1)
• Wolfson, D. E. (1)

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