Erection of steel for substation, tower and miscellaneous purposes in railroad electrification work sometimes proves difficult for structures not sufficiently close to main railroad tracks to permit handling by locomotive crane; here crawler cranes have proved their value in convenience and economies.
Crawler cranes solve problem in railroad electrification
Elec. World
Electrical World ; 98 , n 9
1931
1 Fig.
Article (Journal)
English
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