Disc harrow with support wheels having interconnected separate m

Details Disc harrow with support wheels having interconnected separate m Disc harrow with support wheels having interconnected separate m

1977-03-03

1978-07-04

Stouffer, Richard T.

Earth working

With ground support vertically adjustable relative to frame

Actuator and interconnected means for adjusting wheels on...

172400, 172413, 172414, 172421, 172599, A01B 6322

Patent

active

040983480

ABSTRACT:
A disc harrow having a pair of spaced support wheels each having its own operating mechanism including a hydraulic actuator for raising and lowering the respective wheel, but wherein the mechanisms are mechanically linked together to ensure substantially simultaneous raising and lowering of the wheels. The interconnecting link includes a spring biased lost motion device whereby one of the hydraulic actuators can be adjusted to permit the wheels to assume different positions of elevation, while, nonetheless, preserving the substantially simultaneous operation feature.

REFERENCES:
patent: 932376 (1909-08-01), Desy
patent: 1931815 (1933-10-01), Conley
patent: 2059205 (1936-11-01), Buffington
patent: 3008772 (1961-11-01), Helsel, Sr.
patent: 3195652 (1965-07-01), Murray et al.

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