Centering arrangement for redecking of crane upper

Details Centering arrangement for redecking of crane upper Centering arrangement for redecking of crane upper

1985-05-07

1986-07-22

Blix, Trygve M.

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212189, B66C 2336

Patent

active

046014012

ABSTRACT:
A centering device for aligning those portions of the swing mechanism, e.g. the swing pinion on the upper with the ring gear on the carrier, to permit the redecking of a crane upper on its carrier, the device including a plurality of sockets on the carrier which are engageable by frustoconical ends on a plurality of pins slidably mounted on the upper. A latch holds the pins in an extended position so that the retraction of the legs supporting the upper above the carrier will cause lateral shifting as necessary to align the swing mechanism.

REFERENCES:
patent: 904335 (1908-11-01), Lawry
patent: 3219362 (1965-11-01), Epstein
patent: 3545628 (1970-12-01), Dechantsreiter
patent: 3762337 (1973-10-01), McKeon et al.
patent: 4273244 (1981-06-01), Jensen et al.
patent: 4363412 (1982-12-01), Patel
patent: 4394911 (1983-07-01), Wittman et al.

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