Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

How leakage of current from an electric shot-firing circuit causes misfires

Maintenance of electrical mine equipment from the viewpoint of the safety inspector

Hazard of igniting coal by electric circuits in mines

Published Year

• 1930-1939 (3) *

Subject

• Electricity in mining (3) *
• Coal mines and mining--Safety measures (2)
• Blasting (1)
• Coal mines and mining (1)

Author

• Freeman, Howard Bassett, (2)
• Gleim, E. J. (1)
• Hooker, A. B. (1)
• Ilsley, L. C. (1)
• Zellers, Donald Henry, (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010