Synonyme wurden verwendet für:
Coal mines and mining
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keywords:("Coal mines and mining")
A haulage system with gathering locomotives only
A haulage system with gathering locomotives only
Safety problems in coal mining
Haulage traffic expedited by dispatching
In mine transportation good track plus planned haulage equals safety and efficiency
Kentucky holds big first aid meet
Face pressure and cleat in underground workings
Face pressure and cleat in underground workings
Haulage accidents in coal mines
Car transporter allows stripping two seams simultaneously at Huntsville-Sinclair Mine
Safety record of coal industry shows improvement despite increasing hazards
Accidents at coal face and their prevention
Track brakes for man-riding vehicles
Our experience with shuttle car operation
Safety problems in connection with operation of rubber-tired shuttle cars
Entry driving with cable reel shuttle cars
Modern loader mining with shuttle cars and conveyor puts Kentucky truck mine in top class
Stripping employed to start recovery of 20,000 tons per acre
Tonnage raised by adoption of shuttle-car gathering