Power apparatus for truck loading elevator

Details Power apparatus for truck loading elevator Power apparatus for truck loading elevator

1976-07-12

1978-02-21

Love, John J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

254 9C, B66B 1104

Patent

active

RE0295426

ABSTRACT:
A dock lift has a platform connected at each side to a frame by a scissors apparatus. At one end, a pair of crossed hydraulic cylinders connect the platform and the frame. The hydraulic connections to the cylinders are made so that a load imposed on one side of the platform imposes a load on one cylinder which cylinder in turn causes fluid pressure to be applied to the other cylinder in the sense such that the other side of the platform is drawn downwardly to aid in maintaining the platform approximately level.

REFERENCES:
patent: 2764869 (1956-10-01), Scherr
patent: 2940262 (1960-06-01), Pfitzenmeier
patent: 3162317 (1964-12-01), Becker
patent: 3301348 (1967-01-01), Hiyama
patent: 3598366 (1971-08-01), Juds
patent: 3619007 (1971-11-01), Phillips

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