Earth working – Alternating for right or left hand operation – Tool shifted for opposite throw
Patent
1993-02-12
1995-01-17
Reese, Randolph A.
Earth working
Alternating for right or left hand operation
Tool shifted for opposite throw
172225, A01B 346, A01B 1514
Patent
active
053818660
ABSTRACT:
There is disclosed a semi-mountable plough comprising an elongate plough frame having a long forward frame section (1) carrying a plurality of plough bodies (2), a short intermediate section (3) pivotally connected to the rear end of the forward section (1), and a rear frame section (5) pivotally connected at its forward end to the rear of the intermediate section (3), with the plough being of a reversible type and the section (1, 3 and 5) being pivotable relative to each other in a generally horizontal plane to take-up new positions suitable for movement of the plough in a reverse direction. The rear frame section (5) is pivotable about a horizontal pivot (11) so as to follow any unevenness in the ground, and an actuator (12) is coupled with the rear frame section (5) and is operable in a first mode to allow limited pivotal movement of the rear frame section (5) about horizontal pivot (11), and in a second mode to prevent such pivotal movement.
REFERENCES:
patent: 3771607 (1973-11-01), Mellen
patent: 3830312 (1974-08-01), Brandly
patent: 4067396 (1978-01-01), Watts
patent: 4341148 (1982-07-01), Kosakzecki
patent: 4646849 (1987-03-01), Watvedt
patent: 4778013 (1988-10-01), Van Der Lely
patent: 4825955 (1989-05-01), Watvedt
patent: 4896731 (1990-01-01), Besson
Kverneland Klepp AS
Novosad Christopher J.
Reese Randolph A.
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