Cultivators

Details Cultivators Cultivators

1975-09-29

1977-09-06

Shapiro, Paul E.

Earth working

With drive means for tool or cleaner

With non-driven tool

172 59, 172 71, 172 78, 172 81, 172112, 172509, A01B 3312

Patent

active

040462021

ABSTRACT:
A tractor drawn cultivator comprises a frame extending transversely to the direction of movement of the tractor. A plurality of spaced apart vertical axis rotary driven cultivator members comprising downwardly extending tines are supported from the frame. Surrounding each cultivating member and suspended from the frame is a screen having two spaced apart side walls and an interconnecting rear wall. The side walls have forwardly and outwardly diverging front parts with rearwardly and downwardly extending leading edges. At least a portion of the rear wall is vertically adjustable to control the rate of soil release from the screen. A tool bar to the rear of the main frame may support a plurality of ridging bodies, one behind each cultivator member.

REFERENCES:
patent: 1904138 (1933-04-01), Hasson et al.
patent: 2574237 (1951-11-01), Barrow
patent: 2582364 (1952-01-01), Tice
patent: 3194193 (1965-07-01), Walters
patent: 3316865 (1967-05-01), Williams
patent: 3347188 (1967-10-01), Richey
patent: 3534817 (1970-10-01), Garis et al.
patent: 3616862 (1971-11-01), VAN DER Lely
patent: 3667551 (1972-06-01), VAN DER Lely

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