Search U.S. government technical reports digitized or harvested by TRAIL.
Some phases of the relative responsibility of management and workers for accidents in mines
Some check in and out systems for coal mines
Specially recommended trailing cable
Official changes in the active list of permissible explosives and blasting devices for August, 1931
Active list of permissible explosives and blasting devices approved prior to June 30. 1931.
Official changes in the active list of permissible explosives and blasting devices for October, 1931
Some coal-mine safety organizations in the Pennsylvania bituminous field
Supervision as a means of preventing accidents from falls of roof and coal
Active list of permissible explosives and blasting devices approved prior to June 30, 1932
List of motors available to prospective builders of permissible outfits
250 versus 500 volts or more for circuits in gassy coal mines
Hazards to underground workers from inflammable surface structures near mine openings
The importance of discipline in mine safety
Portable electric lamps for animal haulage in Alabama
Blasting practices as they affect the roof of coal mines in Ohio, Pennsylvania, and West Virginia
Evolution of methane detecting devices for coal mines
Active list of permissible explosives and blasting devices approved prior to June 30, 1933.
A million tons of anthracite mined without a fatality
Operating coal mines without accidents
Bituminous coal-mine safety-inspection outline
List of standard starters available to prospective builders of permissible outfits
Electric cap lamps in Alabama mines, 1935
Hazard of igniting coal by electric circuits in mines
Methane-indicating detectors prove dependable in sampling air in anthracite mines
Active list of permissible explosives and blasting devices approved prior to July 31, 1936.
Dust hazards and their control in mining
Hazards of compressed-air jets for ventilating gassy mines
List of permissible mine equipment :approved to January 1, 1937
Coal-mine fires of electrical origin :their cause and prevention
Tests of a barrier using rock dust in paper bags
Lighting practices in coal mines of the United States
Mine Safety Board decision 29 :doors for controlling ventilation in coal mines
Mine Safety Board decision 30 :main fan installations at coal mines