Data collected over number of years at Montreal iron mine in Wisconsin show steady reduction in accidents when chutes for tram car loading were eliminated by use of slusher hoists in handling broken ore underground; discussion of advantages gained by using slusher methods.
Slusher hoists aid in reducing tramming hazards
Min Congress J
Mining Congress Journal ; 28 , n 8
1942
5 pages
Aufsatz (Zeitschrift)
Englisch
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