Reversible rotary cultivating apparatus

Details Reversible rotary cultivating apparatus Reversible rotary cultivating apparatus

1984-08-09

1986-10-07

Johnson, Richard J.

Earth working

With drive means for tool or cleaner

Blade movable with respect to cyclically driven carrier

172548, 172123, 56294, A01B 3302, A01B 3310

Patent

active

046153950

ABSTRACT:
Cultivating tines, each having opposite cutting edge portions, are pivotably supported by mount brackets on a tine shaft reversibly rotatable about a horizontal lateral axis. One of the edge portions of each tine is positionable in a position rearward with respect to the direction of forward rotation, while the other edge portion is positionable in a position rearward with respect to the direction of reverse rotation. The edge portions differ in upstanding posture when positioned for rotation in the intended direction. The curved edge line of the reverse-rotation edge portion is more upstanding than that of the forward-rotation edge portion when coming into contact with the ground.

REFERENCES:
patent: 2990667 (1961-07-01), Schwalm
patent: 3093951 (1963-06-01), Barrows
patent: 3422611 (1969-01-01), Barrows
patent: 3557880 (1971-01-01), Lely
patent: 3952811 (1976-04-01), Carre
patent: 4492271 (1985-01-01), Doering

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