Earth working – With drive means for tool or cleaner – Subsurface shaft or bar
Patent
1989-01-30
1990-07-10
Johnson, Richard J.
Earth working
With drive means for tool or cleaner
Subsurface shaft or bar
172 69, A01B 3919
Patent
active
RE0332550
ABSTRACT:
A rod weeder attachment for the tool bar of an agricultural implement comprises an arm portion extending rearwardly from a clamp on the tool bar defined by a pair of spaced parallel bars extending rearwardly to a transvese strut. From the strut to the ground is provided a rear arm portion the angle of which can be adjusted relative to the front arm portion. The rear arm portion carries on the lower end a ground wheel for running on the ground and providing drive therefrom. A pair of shanks at opposed ends of the strut extend down to the ground and carry at their lower ends a rod which is driven by a chain mechanism from the ground wheel. Springs allow the arm to lift relative to the tool bar.
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Ade Stanley G.
Battison Adrian D.
Johnson Richard J.
Thrift Muray E.
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