Heavy-duty ripper for dual traction unit

Claim 1

Earthmoving apparatus comprising: a first traction unit; a second traction unit; connecting means for connecting the second traction unit to the first traction unit in rearwardly spaced relationship, said connecting means including first, second, and third frames, said first frame being pivotally connected to said first traction unit, said third frame being pivotally connected to said second traction unit, and means for pivotally connecting the second frame to the first and third frames; a ripper carried by said second frame intermediate said traction units; adjusting means for selectively adjusting the positioning of said ripper on said connecting means, said adjusting means including a jack having a first portion carried by said connecting means and a second selectively extensible portion connected to said ripper for selectively positioning the ripper relative to and independently of said connecting means; and wherein said means for pivotally connecting includes a vertically extending pivotal connection connecting said second frame to the first frame and a longitudinally extending pivotal connection connecting the second frame to the third frame.