Swing controlled crane

Details Swing controlled crane Swing controlled crane

1992-09-21

1993-05-04

Basinger, Sherman

Traversing hoists

Having horizontally swinging boom or bridge

And means to swing boom horizontally

212179, B66C 2318

Patent

active

052073378

ABSTRACT:
A portable crane includes a bracket mounted on a shaft extending upwardly from bearings on the vehicle; a boom extending outwardly from the bracket, a spool rotatable in the bracket carrying a cable, which extends outwardly around a pulley, a hook on the outer end of the cable for supporting a load, and a pair of slack adjusters, one of which receives the shaft for rotating the latter and consequently the boom between use and transport positions, the other slack adjuster engaging the spool for rotating the latter to wind the cable thereon.

REFERENCES:
patent: 1485011 (1924-02-01), Beatty
patent: 2433921 (1948-01-01), Nelson
patent: 2509950 (1950-05-01), Zierke
patent: 3774788 (1973-11-01), Sowers et al.
patent: 3945502 (1976-03-01), Diener
patent: 4269396 (1981-05-01), Easterwood
patent: 4961604 (1990-10-01), Kisner

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