Traveling attachment for ring supported lift crane

Details Traveling attachment for ring supported lift crane Traveling attachment for ring supported lift crane

1982-02-01

1983-06-14

Blix, Trygve M.

Traversing hoists

Having counterweight or counterbalancing means

212189, 280762, 180 946, B66C 2378, B66C 2373

Patent

active

043878148

ABSTRACT:
A traveling attachment including two pairs of crawler assemblies and frame elements are provided for interconnection to the ring of a ring supported crane so the crane can travel under load. The crawler assemblies may be pivotally mounted and reversely and independently powered to facilitate turning.

REFERENCES:
patent: 3747718 (1973-07-01), Gauchet
patent: 3868022 (1975-02-01), Greenlay et al.
patent: 3878944 (1975-04-01), Beduhn et al.
patent: 3900077 (1975-08-01), Gee et al.
patent: 4020952 (1977-05-01), Scodino
patent: 4196816 (1980-04-01), Dvorsky et al.

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