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Modified longwall mining with a German coal planer (plow) in the Pocohontas No. 4 coal bed, Helen, W. Va.

Mechanical Mining in Some Bituminous-Coal Mines: Progress Report 6. Extraction of Pillars with Mechanized Equipment

Coal Deposits in the Deep River Field, Chatham, Lee, and Moore Counties, N.C.

Modified longwall mining with a German coal planer.

Modified longwall mining with German coal planers :summary of operations at five coal mines

The use of augers in surface mining of bituminous coal

Published Year

• 1950-1959 (6)

Subject

• Coal-mining machinery (4)
• Longwall mining--Equipment and supplies (3)
• Bituminous coal (1)
• Bituminous coal industry -- United States. (1)
• Coal-mining machinery. (1)
• Strip mining--Equipment and supplies (1)

Author

• Haley, Wilbur A. (6) *
• Dowd, James J. (3) *
• Shields, Joseph J. (2)
• Toenges, Albert L. (2)
• Turnbull, Louis A. (2)
• Abernethy, Roy F. (1)
• Parks, B. C. (1)
• Quenon, H. A. (1)

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