Earth working – Alternating for right or left hand operation – Axially rotatable implement
Patent
1987-11-23
1988-10-18
Johnson, Richard J.
Earth working
Alternating for right or left hand operation
Axially rotatable implement
172647, 172716, A01B 1506
Patent
active
047780134
ABSTRACT:
A frame beam supports a plurality of plow bodies, the front plow body of which has a one-piece moldboard and is pivotable about an upwardly extending axis. Part of the moldboards of each of the following plow bodies is pivotable about an upwardly extending axis relative to the remainder of each such moldboard. Adjustment is made through rod systems from a common rod which is displaceable mechanically by a screwthreaded spindle or hydraulically by a piston and cylinder assembly. The latter adjustment is effected automatically in response to the tractive force required to drive the plow through the soil.
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Albright Penrose Lucas
Johnson Richard J.
Miller Robert A.
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