Measuring and testing – Dynamometers – For testing force-biased connections
Patent
1985-12-16
1987-05-19
Ruehl, Charles A.
Measuring and testing
Dynamometers
For testing force-biased connections
7386253, 104209, G01L 500, B61B 1212
Patent
active
046657550
ABSTRACT:
A spring actuator having a multiplicity of plate springs whose force is to be monitored, is retained on a thrust cam where it is located between a thrust ring and a fixed collar. Between the collar and the spring stack are arranged two rotating and laterally movable disks between which balls are maintained integrally under load. Reference springs act upon the disks and as soon as the minimum clamping force is no longer exerted by the spring actuator, the reference springs are able to force the balls out of their supports, whereby a great deal of relative rotary movement occurs between the disks releasing a trip catch.
REFERENCES:
patent: 3416462 (1968-12-01), Pomagalski
patent: 3605491 (1971-09-01), Senn
Ruehl Charles A.
Speckman Ann W.
Speckman Thomas W.
Stadeli Lift AG
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