Planting – Drilling – Hill-planting machines
Patent
1975-01-13
1977-07-19
Bagwill, Robert E.
Planting
Drilling
Hill-planting machines
172396, 172 59, A01B 3300
Patent
active
040361543
ABSTRACT:
A rotary harrow or cultivator has a first frame portion linked to a second frame portion. The second frame portion supports rotary soil working members and a roller is adjustably connected to the rear of the second frame portion to govern the working depths of the soil working members. The first frame portion has forward coupling means for connection to a three-point lift at the rear of a tractor. The first and second frame portions are linked to one another with a parallelogram linkage and movable relative to one another during travel. Supporting ground wheels are connected to the first portion via arms and bear on the ground to the rear of the roller to avoid overloading the roller with weight. A delivery mechanism is supported on the implement with delivery tubes extending downwardly to pivot connections on the roller supports.
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patent: 3335681 (1967-08-01), Main et al.
patent: 3411467 (1968-11-01), VAN DER Lely et al.
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patent: 3774689 (1973-11-01), VAN DER Lely et al.
patent: 3826314 (1974-07-01), VAN DER Lely et al.
patent: 3885633 (1975-05-01), VAN DER Lely et al.
patent: 3899029 (1975-08-01), VAN DER Lely et al.
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