Earth working – With actuator adapted to lift tool for transport on wheeled... – Servo-motor forces tool down
Patent
1975-09-24
1977-03-22
Stouffer, Richard T.
Earth working
With actuator adapted to lift tool for transport on wheeled...
Servo-motor forces tool down
172250, 172484, 172699, A01B 1308, A01B 63102
Patent
active
040131297
ABSTRACT:
Attachment for a tractor to do ripping, having parallelogram linkages which support a ripper shank assembly for movement between a raised-carry position and a lowered-rip position. The linkages each have an extensible side consisting of an hydraulic cylinder which allows the shank assembly to be pitched about a transverse horizontal beam axis when located in either of the just mentioned positions or any positions therebetween. A further hydraulic cylinder is connected on one end thereof to a mounting tower by a removable pin for attachment to the tractor and on the other end thereof to a clevis pivot in coaxial alignment with the horizontal beam pitch axis. This further hydraulic cylinder functions as a depth actuator.
REFERENCES:
patent: 3060696 (1962-10-01), Lang
patent: 3503456 (1970-03-01), Larson
patent: 3527308 (1970-09-01), Bernotas et al.
Gaines John W.
Harman Floyd B.
International Harvester Company
Stouffer Richard T.
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