Browse TRAIL Inventories

Abnormal pressures in explosion-proof compartments of electrical mining machines

Guarding trolley wires in mines

Notes pertaining to safety inspections of permissible electric mine equipment

Data in reference to installation of cables in shafts and boreholes

An international viewpoint on safeguarding electrical equipment used in gassy mines

Electrical viewpoint in a complete safety survey of a coal mine

Permissible electrically operated air compressors

Bureau of Mines apparatus for demonstrating electrical ignition of mine gas

Permissible electrically operated room hoists

Permissible electrically operated hand-held coal drills

The importance of adequate voltage for distribution systems in coal mines

Coal-mine fires of electrical origin :their cause and prevention

State regulations pertaining to the use of internal-combustion engines in coal and metal mines and in tunnels

Permissible electrically operated post drills and drilling machines

Installation of high-tension power circuits in coal mines

Reducing "nipping" hazards when tramming coal-mining machinery

State regulations pertaining to hoisting of men

Some signaling systems in metal-mine shafts

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

Some information on automatic coupling of mine cars

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

A study to determine factors causing pressure piling in testing explosion-proof enclosures

Portable methane-detecting appliances approved under United States Bureau of Mines standard

United States Bureau of Mines standard for inspection and test of explosion-proof enclosures for mining equipment

Inspection and testing of mine-type electrical equipment for permissibility :revision of Information circular 7185

Explosion-Proof Design and Wiring for Permissible Mining Equipment

International cooperation in reducing mine hazards

State regulations pertaining to the use of internal-combustion engines underground

Permissible mine equipment approved during the calendar years 1955-56 :with appended list of manufacturers of flame resistant trailing cables and fire-resistant conveyor belts

Permissible mine equipment approved during 1957-58


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