Cradle operated by d.c. engines instead of by gearing; large sheaves for operating cables.
Pennsylvania R. R. car-dumper for loading coal into ships
Eng News-Rec
Engineering News-Record ; 95 , n 23
1925
1 Fig.
Aufsatz (Zeitschrift)
Englisch
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New coal dumper on Pennsylvania handles a car a minute
Engineering Index Backfile | 1940
Railroad car-dumper coal sampling
Engineering Index Backfile | 1959
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