Electric locomotives are almost universally used in mines of any size for main haulage work; determine type of gathering locomotive which is best adapted to particular mine; speed of storage-battery-trolley and rail locomotives; shows various types of gathering or haulage locomotives.
Mine locomotives for gathering and main-line haulage
Engrs. Soc. West. Pa. -- Proc
1928
10 pages
10 Figs.
Article (Journal)
English
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