Earth working – Plural relatively movable tools – Plural tool groups relatively vertically movable because of...
Patent
1986-10-27
1988-08-30
Stouffer, Richard T.
Earth working
Plural relatively movable tools
Plural tool groups relatively vertically movable because of...
74 8917, 744115, 74422, 74530, 172736, A01B 3922
Patent
active
047669624
ABSTRACT:
A furrow forming apparatus for a seed planter is disclosed wherein the construction facilitates convenient adjustment of spring-biasing exerted on furrow forming disks of the assembly. The apparatus includes a parallel linkage which permits relative vertical movement of the disks. Springs operatively associated with the linkage are positionable for creating either downward or upward pressure on the disks. Adjustment of the springs is accommodated by the provision of an upper support rod which receives upper ends of the springs, with the support rod selectively positionable along upper links of the parallel linkage by the provision of an adjustable rack and pinion mounting arrangement.
REFERENCES:
patent: 812216 (1906-02-01), Lorimer
patent: 1080280 (1913-12-01), Hult
patent: 1305200 (1919-05-01), De Vaul
patent: 2605950 (1952-08-01), Colvin
patent: 2933290 (1960-04-01), Ryder, Jr.
patent: 3621731 (1971-11-01), Houss
patent: 4423788 (1984-01-01), Robinson, Jr. et al.
patent: 4461355 (1984-07-01), Peterson et al.
patent: 4530406 (1985-07-01), Hake et al.
patent: 4560132 (1985-12-01), Wilder
J. I. Case Company
Stouffer Richard T.
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