Multiple offset crane boom extension

Details Multiple offset crane boom extension Multiple offset crane boom extension

1983-02-15

1985-04-23

Blix, Trygve M.

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212177, 212266, B66C 2362

Patent

active

045124825

ABSTRACT:
A crane boom extension or jib is held on the nose of the boom by a single fixed length self-adjusting cable loop which extends around an arcuate guide attachable at several different locations to an inclined plane mounting bracket on the jib near its outer end. The mere repositioning of the guide on the inclined plane mounting bracket allows the jib to assume several different angularly offset positions relative to the axis of the boom without other adjustments. The inclined plane mounting bracket establishes the plane in which the cable loop lies in all adjusted positions of the jib. The arrangement is convenient, safe and simplified.

REFERENCES:
patent: 1748365 (1930-02-01), Remde
patent: 2049352 (1936-07-01), Camp
patent: 3182371 (1965-05-01), Pieper
patent: 3732988 (1973-05-01), Lamer
patent: 3794296 (1974-02-01), Hasstedt
patent: 3968884 (1976-07-01), Johnson et al.
patent: 4091936 (1978-05-01), Wuerflein et al.

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