Machine element or mechanism – Control lever and linkage systems – Multiple controlling elements for single controlled element
Patent
1985-10-02
1987-03-17
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlling elements for single controlled element
74522, 74834, 251233, 431 76, G05G 1100, G05G 1300
Patent
active
046497676
ABSTRACT:
A mechanical proportioning trim execution device in the general configuration of a four-bar linkage including input and output levers coupled by a connecting link, with the input lever having its length determined by a movable pivot automatically adjusted by a gear motor to produce the trim function. The movable pivot advances or retracts along a path which is highly skewed to the line of the input lever in a manner such that the path is perpendicular to the connecting link at zero input displacement for minimum trim effect and is parallel to the connecting link at full input displacement for maximum trim effect.
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Cleveland Controls, Incorporated
Herrmann Allan D.
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