Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Patent
1991-06-14
1992-08-25
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Single throw lever
B60P 148
Patent
active
051412047
ABSTRACT:
A jack for elevating a sofa or similar article of furniture to facilitate cleaning the area beneath the article has an elongated, horizontal beam rollably supported at the rear end thereof by a pair of wheels, one on each end of a horizontal axle disposed perpendicularly to the longitudinal axis of the horizontal beam. An L-shaped plate attached to the front end of the horizontal beam has a lower horizontal plate extension adapted to be inserted under an article of furniture. The jack includes an upright beam member that is pivotably attached to a wheel axle. A stop member located rearward of the axle limits rearward movement of the upright member, such that under the force of gravity the longitudinal axis of the upright member extends obliquely upward and rearward from the horizontal beam. Downward pressure applied to a foot pedal pivotably attached to the upper end of the upright member transmits a torque through the stop member to the horizontal beam which is effective in elevating the front end of the horizontal beam and an article of furniture under which the L-shaped plate may be inserted. The upright member may be pivoted forward to place the jack in a more compact configuration for storing and transporting.
REFERENCES:
patent: 2859012 (1958-11-01), Oleson et al.
patent: 2910271 (1959-10-01), Keehn
patent: 3157411 (1964-11-01), Rhodes
patent: 3467405 (1969-09-01), Fogg
patent: 3809261 (1974-05-01), Lee
patent: 3876096 (1975-04-01), Latek
Chapin William L.
Watson Robert C.
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