Hydraulic lifting device

Details Hydraulic lifting device Hydraulic lifting device

1991-02-25

1992-05-05

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Mechanically actuated

254134, E21B 1900

Patent

active

051100908

ABSTRACT:
A hydraulic lifting device for sequentially lifting the respective support frames, axles and wheels of a wheeled irrigation system, in order to pivot the wheels in a transverse or longitudinal orientation with respect to the respective axles for deploying the irrigation system in a field. The hydraulic lifting device includes an upward-standing support frame adapted for attachment to the three-point support system of a tractor, a carriage attached to the support frame in vertically sliding relationship, a hydraulic cylinder mounted on the support frame and carriage for raising and lowering the carriage with respect to the support frame, upper and lower lifting member sleeves secured to the carriage and a detachable lifting member carried by the lifting member sleeves for engaging the respective axles and raising and lowering the axles and wheels.

REFERENCES:
patent: 1292823 (1919-01-01), Livesay
patent: 2852229 (1958-09-01), Grass
patent: 3028145 (1962-04-01), Brand
patent: 4068826 (1978-01-01), Scott
patent: 4256286 (1981-03-01), Hudgins

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