A - Human Necessities – 01 – B
Patent
A - Human Necessities
01
B
97/10
A01B 35/00 (2006.01) A01B 49/02 (2006.01)
Patent
CA 1172500
ABSTRACT OF THE DISCLOSURE: An agricultural machine 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 right in 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.
394386
Ber-Vac Inc.
Robic Robic & Associes/associates
LandOfFree
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