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Mechanical mining in some bituminous-coal mines.

Mechanical mining in some bituminous-coal mines.

Mechanical mining in some bituminous-coal mines :progress report 9 : face haulage

Longwall mining in bituminous coal mines with planers, shearer- loaders, and self-advancing hydraulic roof supports

Published Year

• 1950-1959 (2)
• 1960-1969 (2)

Subject

• Coal-mining machinery (4) *
• Bituminous coal industry--United States (3)
• Longwall mining--Equipment and supplies (1)
• Mining engineering (1)

Author

• Shields, J. J. (4) *
• Dowd, J. J. (3)
• Haley, W. A. (2)
• Magnuson, M. O. (1)

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