Light-duty electric crane

Details Light-duty electric crane Light-duty electric crane

1994-09-29

1995-08-29

Huppert, Michael S.

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212249, 212253, 212285, 212292, B66C 2318

Patent

active

054452813

ABSTRACT:
A light-duty electric crane structure includes a base, a supporting mast, a movable boom and an electric winch. The base is mountable onto a truck body, and the supporting mast is placed into a holding pipe of the base and can be rotatably adjusted relative thereto. A center portion of the supporting mast is provided with a manual lever for controlling rotation and lateral movement of the movable boom. The top of the supporting mast is provided with a supporting base for securing of the boom, and the center portion of the boom is provided with a platform for the mounting of the electric winch. The angle of inclination of the boom can be adjusted by a pin latch. A free end of the boom has pivotally mounted thereon a pulley through which is fed a hoisting rope of the winch. A load hook is attached to the end of the rope.

REFERENCES:
patent: 2565091 (1951-08-01), Reed
patent: 2947425 (1960-08-01), Nichols
patent: 3084808 (1963-04-01), Peduzzi et al.
patent: 3338542 (1967-08-01), Meinhard
patent: 3978989 (1976-09-01), Avila
patent: 4069922 (1978-01-01), Hawkins
patent: 4391379 (1983-07-01), Paffrath
patent: 4419038 (1983-12-01), Pendergraft
patent: 4560074 (1985-12-01), Manning
patent: 5064078 (1991-11-01), Van Staveren

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