Earth working – With ground support vertically adjustable relative to frame – Tool land ground support moved together relative to frame
Patent
1975-03-12
1977-01-11
Shapiro, Paul E.
Earth working
With ground support vertically adjustable relative to frame
Tool land ground support moved together relative to frame
172318, A01B 324, A01B 1300, A01B 6322, A01B 6332
Patent
active
040022080
ABSTRACT:
The plow device is adjustable so that it can be pulled and operated by a powered tractor utilizing reciprocating lowering and lifting rods actuated by a 3 hitch hydraulic piston and piston rod attached to 3 respective hooks one hook pivotally connected to vertical posts and two oppositely disposed hooks connected to the opposed front ends of the frame of said plow device. The plow device has a pivotally connected shank connected by a pivot pin therethrough which also extends through horizontal side frame beams. The shank carries a plow blade point at its lower end which cuts levees, furrows or cultivates the ground with suitable kind of cultivating attachment. A pivotally connected L-shaped crank arm is pivotally connected by pivot pin through hole in said crank arm and matching holes in said horizontal side beams of the frame and the upper end of said crank arm has several adjustment holes spaced apart from each other for use attaching a pivotal member by pivot pin through a hole thereof and extending through one of the adjustment holes in the upper end of said crank arm. A hydraulically operated piston is actuated by hydraulic fluid in a cylinder by pipe and valves communicating with each end of the cylinder so that said piston may be actuated forward for drawing said crank arm forward to lift a trailing wheel from the ground for safely transporting said plow device and wheel to clear levees around sections of lands in a field to be cultivated for growing crops such as rice crops.
REFERENCES:
patent: R24006 (1955-05-01), Acton
patent: 1312281 (1919-08-01), Springer
patent: 1324101 (1919-12-01), Bohmker et al.
patent: 2408936 (1946-10-01), Leland
patent: 2627797 (1953-02-01), Acton
patent: 2691930 (1954-10-01), Forgy
patent: 2735348 (1956-02-01), Taylor
patent: 2753784 (1956-07-01), Wetzel
Kinnear William E.
Shapiro Paul E.
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