Entries are located along coastline; mine workings are constantly expanding seaward; rope haulages; electric trolley locomotives; diesel locomotives; advantages and disadvantages of respective types of underground transportation; accidents; costs of transportation.
Discussion of methods of underground transportation practised in Cape Breton collieries of Dominion coal company, limited
Can Min Met Bul
Canadian Mining and Metallurgical Bulletin ; 47 , n 510
1954
7 pages
Aufsatz (Zeitschrift)
Englisch
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