Earth working – With wheel steering or actuator for horizontally angling... – Wheel on trailing implement responds to turning movement
Patent
1977-09-06
1980-02-05
Marlo, George J.
Earth working
With wheel steering or actuator for horizontally angling...
Wheel on trailing implement responds to turning movement
172324, 172647, 280468, A01B 6900, A01B 59044
Patent
active
041868064
ABSTRACT:
A variable width furrow-spacing plow system embodied in an implement having a laterally adjustable tractor hitch, an angularly adjustable plow-carrying main frame, and hydraulic means for correlating the lateral movement of the hitch and angular position of the frame, to the end that for any given furrow spacing the hitch point of the implement will fall closer to the line of pull than has heretofore been possible, and minimum pulling force will be required to motivate the implement. The system embodies a pull bar or frame which has its forward end pivoted to the adjustable tractor hitch and its rear end pivoted to a medial region of the plow-carrying frame. A hydraulic ram controls the lateral adjustment of the hitch, while a second ram controls the angularity between the pull frame and the main frame. The two rams are phased for operation in unison under the control of a valve in the cab of the tractor. A third ram which also is phased with the two other rams, controls the attitude of a trailer section, and maintains such section in line with the direction of travel of the tractor.
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patent: 4049063 (1977-09-01), Dietrich
AuBuchon F. David
Getchius James J.
International Harvester Company
Johnson Neal C.
Marlo George J.
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