Portable hoist

Details Portable hoist Portable hoist

1983-02-24

1985-12-03

Spar, Robert J.

Material or article handling

Self-loading or unloading vehicles

Loading or unloading by other carrier or mover means, and...

212238, 414546, B65G 6702

Patent

active

045563586

ABSTRACT:
A portable hoist is provided for lifting, transporting, and depositing loads onto a platform, such as a work bench, or into a vehicle, such as a pick-up truck. The portable hoist comprises a mounting for attachment to a support, an upright support structure connected to the mounting by a hinge which allows for swinging movement of the support structure about its vertical axis, and a boom pivotally secured at one end to the upper end of the support structure such that the free end of the boom can be raised and lowered. A powered unit acts between the support structure and the boom serves to raise and lower the boom. A sheave is carried at the free end of the boom and a hoist line connected to the support structure at a level substantially below the pivotal connection of the structure to the boom loops over the sheave and carries a member for attachment to the load to be lifted.

REFERENCES:
patent: 500328 (1893-06-01), Hays
patent: 1874189 (1932-08-01), Howard
patent: 2374045 (1945-04-01), Soucia
patent: 2517434 (1950-08-01), Humpal et al.
patent: 2528588 (1950-11-01), Forslund
patent: 2594076 (1952-04-01), Schlein
patent: 2947425 (1960-08-01), Nichols
patent: 3019918 (1962-02-01), Keener
patent: 3229830 (1966-01-01), Smith
patent: 3313107 (1967-04-01), Urish

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