A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/13
A01B 3/44 (2006.01) A01B 3/30 (2006.01) A01B 3/421 (2006.01)
Patent
CA 1079567
TITLE: ROLLOVER APPARATUS FOR PLOWS Abstract of the Disclosure A rollover mechanism for pivoting the plow frame of a two-way gang plow between alternate operative field positions angularly spaced 180 degrees apart relative to a center axis on a supporting three point hitch framework. The plow frame is further positionable in an upright attitude for travel purposes. Movement of the plow frame relative to a supporting wheeled carrier or three point hitch framework is accomplished through a crank arm connected to a plow frame pivot shaft. An elongated lever arm is pivotally connected both to the crank arm and to an extendable hydraulic cylinder assembly mounted to the supporting three point hitch framework. An intermediate link is pivotally connected to the three point hitch framework and is also pivotally connected to the elongated lever arm. Straight line movement of the hydraulic cylinder assembly is thereby converted to angular movement of the pivot shaft. Both the elongated lever arm and the inter- mediate link have side edges arcuately curved in a concave configuration facing toward the center axis of the pivot shaft. This configuration allows them to be wrapped very closely about the pivot shaft to accomplish full 180° movement of the pivot shaft, as well as the plow frame and plows supported by it.
302888
Filan A. Laverne
Filan Alton N.
Filan A. Laverne
Filan Alton N.
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