Earth working – Alternating for right or left hand operation – Interrelated tool shift and ground support manipulation
Patent
1984-01-23
1986-06-03
Johnson, Richard J.
Earth working
Alternating for right or left hand operation
Interrelated tool shift and ground support manipulation
172226, 172282, 172647, 172287, A01B 330, A01B 6908
Patent
active
045924295
ABSTRACT:
A two-way gang plow is provided with a pair of front steering wheels muonted for steering adjustment relative to a pivoted front axle. The steering mechanism for the wheels is coupled to a steerable tail wheel through master and slave hydraulic cylinders in such manner that when a towing tractor turns in one direction the master cylinder moves with the turning of the front wheels and supplies hydraulic fluid pressure to the slave cylinder to operate the latter and turn the tail wheel in the direction opposite the turning direction of the front wheels. During roll-over from one operative side to the other, a lever mechanism is operated to turn the axle to correspond with the operative set of plow bottoms. Also, the plow bottoms are mounted pivotally on the plow frames and interconnected by parallel linkages for simultaneous adjustment of the lateral spacing between land sides of adjacent plow bottoms. Linkage between the rear plow pivot and tail wheel support operates to turn the tail wheel to correspond with the pivotal adjustment of the plow bottoms.
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Brown Terrence L. B.
Johnson Richard J.
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