Planting – Drilling – Lister units
Patent
1975-04-14
1977-07-26
Burr, Edgar S.
Planting
Drilling
Lister units
111 81, 172198, 172705, A01C 506
Patent
active
040375455
ABSTRACT:
Machine for seeding designed to be pulled by a tractor and outfitted with seed drills for depositing of the seeds in the soil. A furrow opener is mounted forward of the seed drill, and a furrow closer is mounted aft of the seed drill. The furrow closer is mounted on the frame for pivoting in a vertically extending plane behind the seed drill, and comprises a support pivotally mounted on the frame and a hiller mounted on the support by a mounting device for projection of the hiller below the mounting device and into the soil for closing of the furrow. The mounting device is secured to the support by a releasable fastener so that length of the projection of the hiller below the mounting device can be adjusted.
REFERENCES:
patent: 25430 (1859-09-01), Maize
patent: 435769 (1890-02-01), Purdy
patent: 1031167 (1912-07-01), Bushnell
patent: 1202562 (1916-10-01), Mintern
patent: 1473297 (1923-11-01), Knight
patent: 1653786 (1927-12-01), Shell
patent: 2805613 (1957-09-01), Siems
patent: 2872883 (1959-02-01), Padrick
patent: 3157139 (1964-11-01), Spindler
patent: 3322203 (1967-05-01), Johnson
patent: 3536145 (1970-10-01), Clark
Amazonen-Werke H. Dreyer
Bratlie Steven A.
Burr Edgar S.
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