Earth working – Diverse tools – Including spring formed tool or standard
Patent
1982-01-15
1984-05-08
Johnson, Richard J.
Earth working
Diverse tools
Including spring formed tool or standard
172149, 172199, 172413, A01B 3518, A01B 6322
Patent
active
044469250
ABSTRACT:
An agricultural apparatus and more specifically a cultivator intended to till the soil for the incorporation of chemical solutions and to prepare it for sowing. This cultivator has a double-wheel-mounted frame capable of being hitched to a tractor, at least one transverse row of tines at the front or drawing end and at least one additional transverse row of the tines at the rear. A single or double transverse cylindrical rolling harrow, spring-pressed downwardly and oscillating vertically, is provided behind the rear tines, the harrow having a churning action which breaks up the lumps left after the soil has been loosened by the tines. A further transverse rolling harrow is also provided between the front and rear rows of tines, generally at the center of the frame. This additional harrow is, like the rear one, pressed downwardly by springs and is also able to oscillate vertically. To ensure positive control of the depth into which the tines and harrows may be allowed to work, a mechanical stop may be provided for stopping the fall of the frame and its appended tilling equipment past a predetermined level with respect to the whells, thereby ensuring that the cultivation depth is kept constant regardless of any leak that may develop in the hydraulic system of the power jacks.
REFERENCES:
patent: 2593176 (1952-04-01), Patterson
patent: 3643745 (1972-02-01), Betulius
patent: 3935906 (1976-02-01), Neal
patent: 4361191 (1982-11-01), Landoll
Mix-N-Till Advertizing Brochure of Lear Siegler Inc. Sac City IA 1981.
S-Tine Cultivator-Incorporator-Advertizing Brochure of Brillion Ironworks, Brillion WI.
Ber-Vac Advertizing Brochure of Ber-Vac Inc. Thetfordmines Que. Can. 1/79.
Glencoe Danish Shankfield Cult with Double Rolling Baskets Adv. Brochure of Portable Elv. Bloomington, IL.
Soil Preparation with the Triple K. System-Advertizing Brochure of Kongskilde-USA Branch Memphis, TN.
Mix'N' Till Seed Bed Finisher-Advertizing Brochure of Noble-Sac City IA.
Ber-Vac Inc.
Johnson Richard J.
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