Effort limiting and interrupting actuator

Details Effort limiting and interrupting actuator Effort limiting and interrupting actuator

1976-04-12

1977-06-21

Gill, James J.

Measuring and testing

Brake testing

Single wheel rotating and resistance measuring means

212 39R, B66C 1350

Patent

active

040303535

ABSTRACT:
The disclosure is of an effort limiting actuator, comprising an arm system which is subject to lateral deflection when subjected to a predetermined force or torque, but which withstands deflection until such force or torque reaches a predetermined magnitude. The arm system is stabilized against exerted force or torque until a pre-compressed helical compression spring incorporated in the device has been compressed sufficiently under said force or torque to overcome the force of pre-compression, at which time the aforementioned deflection occurs. This deflection will be in either of two directions depending upon the direction of the force or torque. Switch means are selectively actuated in response to the direction of the force or torque thereto to interrupt that force or torque, or in other words the initially mentioned effort, which the actuator is intended to limit. The device is operative with the effort exerted in either direction of operation, and is thus directionally discriminative.

REFERENCES:
patent: 2557695 (1951-06-01), Savoy
patent: 2877645 (1959-03-01), Nealy
patent: 3076362 (1963-02-01), Able
patent: 3523471 (1970-08-01), Lance

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