Title: Rotary harrows

Abstract: A rotary harrow has a plurality of soil-working members rotatably mounted on upwardly extending shafts and the shafts are journalled in an elongated frame portion that extends transverse to the direction of travel. A protective and supporting member of elongated configuration is secured to the frame portion. The protective member can be nonrotatable but is angularly displaceable about a horizontal axis that extends generally parallel to the frame portion. The protective member has an inclined surface that can be curved or substantially flat and the outer surface faces the soil working members and is positioned relative to those members to direct debris downwardly to the ground. Stops on the frame portion and protective member limit the latter's movement relative to the remainder of the harrow.

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Inventors: van der Lely, Cornelis

Application Number: 759672
Filing Date: 1977-01-17
Publication_date: 1979-01-02
Assignee:
Primary Class(es): 172/49.5 172/63
Other Classes:
US Patent Ref:

4042041

Aug, 1977

van der Lely

172/70.

Other Refs: 701855571119477116820

Jun, 1972	NL
Mar, 1973	NL
Jun, 1973	NL

Primary Examiner: Stouffer, Richard T.
Assistant Examiner:
Attorney: Mason, Mason & Albright