Back to results
US 5,207,337 AGranted
Swing controlled crane
OwnerNavarre A. Masseyinventor
Life of this patent
Estimating the term…
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.
Claims5
A portable crane comprising bracket means;
- post means carrying said bracket means for rotatably mounting the bracket means on a support;
- boom means on said bracket means;
- spool means rotatable in said bracket means for carrying a cable;
- first slack adjuster means on said post means for rotating the post means and consequently the bracket means and boom means between use and non-use positions;
- and second slack adjuster means for rotating said spool means to wind the cable on said spool means.
2 more elements
Dependencies are inferred from the claim text.