Machine element or mechanism – Control lever and linkage systems – Multiple controlling elements for single controlled element
Patent
1975-04-16
1977-03-15
Scott, Samuel
Machine element or mechanism
Control lever and linkage systems
Multiple controlling elements for single controlled element
74470, 74481, 180 77R, 180 82A, G05G 1100
Patent
active
040117685
ABSTRACT:
A manually controllable linkage is provided for selectively adjusting the swash plate of a reversible flow, variable displacement pump of a hydrostatic transmission. The linkage includes a speed and direction selecting part for selectively moving the swash plate so as to effect forward, reverse and neutral driving conditions in the transmission, and a neutral return part for overriding the speed and direction selecting part for quickly returning the swash plate to its position for effecting the neutral driving condition in the transmission. The speed and direction selecting part of the linkage includes input and output sections interconnected by a motion-moderating section which regulates or governs the maximum speed at which the output section and, hence, the swash plate may be moved regardless of the speed manually imparted to the input section.
REFERENCES:
patent: 3431792 (1969-03-01), Smith
patent: 3525266 (1970-08-01), Brooks et al.
patent: 3727480 (1973-04-01), Need
patent: 3868003 (1975-02-01), Smith
patent: 3898891 (1975-08-01), Colloton
Deere & Company
Scott Samuel
Shoemaker F. D.
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