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Rock-dust barriers for coal mines

Tests of a barrier using rock dust in paper bags

Tests in the Experimental coal mine to determine requirements for preventing propagation of coal-dust explosions in rooms

Published Year

• 1920-1929 (1)
• 1930-1939 (1)
• 1940-1949 (1)

Subject

• Coal mines and mining--Safety measures (3) *
• Mine explosions (3) *

Author

• Greenwald, H. P. (3)
• Howarth, H. C. (3) *
• Hartmann, Irving (1)
• Lewis, Bernard. (1)
• Nagy, John (1)
• Rice, George S. (1)

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