Browse TRAIL Inventories

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

Laboratory and field tests of a permissible indicating methane detector

The overheating of rubber-sheathed trailing cables

Do fuses protect against methane ignition?

The splicing of rubber-sheathed trailing cables

Rubber-Sheathed Trailing Cables

Evolution of methane detecting devices for coal mines

Dry cells and their application to mining

Factors that decrease the light of electric cap lamps

Special multiple-shot blasting units

Maintaining the permissibility of electric cap lamps

The improved permissible flame safety lamps

Behavior of flame safety lamps in mine atmospheres deficient in oxygen

Permissible methane detectors

Lighting practices in coal mines of the United States

Fuel for permissible flame safety lamps


Published Year

Subject

Author