Rotary harrows

Details Rotary harrows Rotary harrows

1977-01-17

1981-01-06

Shapiro, Paul E.

Earth working

With drive means for tool or cleaner

Plural driven tools

A01B 3306

Patent

active

042431034

ABSTRACT:
A rotary harrow has a plurality of soil working members mounted in a row and each of the members is rotatably mounted on an upwardly extending shaft. Each soil working member includes a downwardly extending support on the lower end of a corresponding shaft and a soil working tool is mounted on the support. Each tool includes at least one pair of tines having respective coils that encircle the support and the entire tool can be made from a single length of spring steel rod. A transverse bolt with clamps couples the support with a connecting portion of the tool between the coils.

REFERENCES:
patent: 1830565 (1931-11-01), Schaeffers
patent: 2438707 (1948-03-01), Kropp
patent: 2751833 (1956-06-01), Hupp
patent: 2816495 (1957-12-01), Brooks
patent: 2983322 (1961-05-01), Heeren
patent: 3460629 (1969-08-01), Shapland, Jr. et al.
patent: 3616862 (1971-11-01), Lely
patent: 3667551 (1972-06-01), Lely et al.

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