Vertical lift and control for plows

Details Vertical lift and control for plows Vertical lift and control for plows

1976-01-12

1977-08-02

Gilliam, Paul R.

37193, B63B 3504, E02F 502

Patent

active

040388280

ABSTRACT:
A vertical lift and tilt control for plows which is particularly suitable for laying cable, pipe and the like underground. The vertical lift mechanism includes a mast assembly having a generally vertical rail and a slide frame slideably mounted on the rail. The plow assembly is supported on the slide frame and a power means, such as a piston, is connected to the mast and slide frames for raising and lowering the plow assembly. The mast assembly is pivotally supported on a suitable vehicle and a second power means, such as a piston, is pivotally connected to the vehicle and the mast assembly for adjusting the tilt or attack angle of the plow blade.

REFERENCES:
patent: 3395545 (1968-08-01), Mendaloff, Jr.
patent: 3571956 (1971-03-01), Heiberg
patent: 3657831 (1972-04-01), Kant
patent: 3684030 (1972-08-01), Lucero
patent: 3727696 (1973-04-01), Hansen
patent: 3777500 (1973-12-01), Kelley

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