Self-propelled disk harrow machine

Details Self-propelled disk harrow machine Self-propelled disk harrow machine

1978-04-03

1979-11-20

Shapiro, Paul E.

Earth working

With drive means for tool or cleaner

Plural driven tools

172 56, 172114, 172116, 172587, A01B 900

Patent

active

041747569

ABSTRACT:
A self propelled disk harrow having four gangs of disc members attached thereto which are rotated to propel the disk harrow and to thereby till the soil. Wheels are provided for allowing the disk harrow to travel on public roads and to aid in propelling the disk harrow. When the disc members extend too far into the soil or otherwise become ineffective in propelling the disk harrow, such as because of wet or sandy soil, the weight of the disk harrow transfers to the wheels and the wheels tend to primarily propel the disk harrow.

REFERENCES:
patent: 1040890 (1912-10-01), Cook
patent: 1302295 (1919-04-01), Botsford
patent: 2675750 (1954-04-01), Boyer
patent: 3213946 (1965-10-01), Carrick

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