Lifting implement

Details Lifting implement Lifting implement

1975-05-12

1977-03-08

Spar, Robert J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

214152, 242 841K, 254150R, B60P 148

Patent

active

040108597

ABSTRACT:
A lifting implement comprising a base adapted to be secured to the floor of a van-type truck or the like adjacent a doorsill thereof, a lifting platform, two pairs of generally parallel connecting arms pivotally connected to the base and to the platform adjacent the outer end thereof, a pair of cable and pulley arrangements interconnecting the base and the platform, and a winch secured to the base at one side thereof. The base has a pair of pulley support members extending upwardly therefrom. Each pulley and cable arrangement has a plurality of pulleys journalled by the pulley supports and the platform and a cable with the cable extending between the pulleys journalled by the support member and pulleys on the platform. Both cables are secured to the winch for simultaneous winding and unwinding thereby to effect uniform movement of the platform.

REFERENCES:
patent: 2669399 (1954-02-01), Wood
patent: 3403578 (1968-10-01), Morse
patent: 3454235 (1969-07-01), Hurley

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