Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1978-01-27
1980-06-03
Hermann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74512, G05G 916, G05G 104
Patent
active
042055628
ABSTRACT:
An improvement in a linkage assembly which comprises a bellcrank pivotally mounted on a stationary shaft. The improvement comprises first screw threads on the stationary shaft and second screw threads on the bellcrank mating with the first screw threads to form the pivotal mounting of the bellcrank to the stationary shaft while substantially preventing axial motion of the bellcrank relative to the stationary shaft in the absence of relative flotation therebetween. Any play or looseness in the motion of the bellcrank is thereby substantially eliminated.
REFERENCES:
patent: 2575379 (1951-11-01), Benning
patent: 3962930 (1976-06-01), Frazee
Caterpillar Tractor Co.
Dubb Hubert E.
Hermann Allan D.
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