Title: Ripper for attachment to tractor

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.

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Inventors: Wilkinson, John R. (Arlington Heights, IL, US)

Application Number: 616457
Filing Date: 1975-09-24
Publication_date: 1977-03-22
Assignee: International Harvester Company (Chicago, IL)
Primary Class(es): 172/464 172/250, 172/484, 172/699
Other Classes:
US Patent Ref:

3060696	Oct, 1962	Lang	61/72.
3503456	Mar, 1970	Larson	172/484.
3527308	Sep, 1970	Bernotas et al.	172/464.

Other Refs:
Primary Examiner: Stouffer, Richard T.
Assistant Examiner:
Attorney: Gaines; John W., Harman; Floyd B.