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Coal mines and mining
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keywords:("Coal mines and mining")
Use and handling of mine cars in british collieries
Face pressure and cleat in underground workings
Face pressure and cleat in underground workings
Haulage by benzol locomotives and by locomotives in general
Big wheel loaders handle many jobs
Airlift and lift equipped with container feeders
Transportation of pipes, long lumber, and rails in Friedrich Heinrich mine
Shuttle-car accidents in thin seams
Good roads essential in strip-mine truck haulage
Entry driving with cable reel shuttle cars
Substantial progress by no means restricted in 1939 to mechanical loading and transport at face
Haulage delays: Causes and remedies
Double tracked rooms speed up pit car loading
In mine transportation good track plus planned haulage equals safety and efficiency
Safety problems in coal mining
Montana. The colstrip operation in Montana
Nomogram for synchronization of underground railroad transportation