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Permissible electrically operated pumps

Mechanized mining brings new electrical hazards

List of permissible mine equipment approved during 1940

Inspection and testing of mine-type electrical equipment for permissibility

Permissible mine equipment approved during 1942

Prevention of fires caused by electric arcs and sparks from trolley wires

Permissible mine equipment approved during 1943

Ground-resistance measurements of drill-hole casings

Guarding trolley wires in mines

Published Year

• 1940-1949 (9) *

Subject

• Coal mines and mining--United States--Safety measures (3)
• Electricity in mining (3)
• Mines safety--United States--Equipment and supplies (3)
• Mine safety (2)
• Boring (1)
• Coal mines and mining--Electrical equipment--Safety measures (1)
• Coal-mining machinery--Electric equipment (1)
• Coal-mining machinery--Safety measures (1)
• Coal-mining machinery--Testing (1)
• Earth resistance (Geophysics) (1)
• Electricity in mining--Safety measures (1)
• Mine pumps (1)
• Mining machinery--Electric equipment--Testing (1)
• Oil well casing (1)

Author

• Gleim, E. J. (9) *
• Brunot, H. B. (2)
• Griffith, F. E. (2)
• Artz, R. T. (1)
• Brunot, H. B.. (1)
• Harrington, D. (1)
• ILsley, L. C. (1)
• Ilsley, L. C. (1)

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