J. I. Case Company

Alton B Christensen

Harold A Ralston

A harrow assembly having a main frame section and two wing frame sections articulated on generally fore and aft axes on opposite ends of the main frame section is disclosed herein. Each frame section has a rockshaft rotatable thereon and the rockshafts are in axial alignment when the sections are in end-to-end relation with an interconnection between adjacent ends of the respective rockshafts. The interconnection includes a pair of arms that have contacting surfaces defined thereon and the contact point between the surfaces is generally in alignment with the hinge axis between the respective sections when the assembly is in a normal earthworking position.

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Kenosha, WI, United States of America

Alton B Christensen