Torque limiting adaptor

Details Torque limiting adaptor Torque limiting adaptor

1974-12-09

1976-07-20

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

B25D 23142

Patent

active

039699617

ABSTRACT:
An adaptor for applying a predetermined amount of torque to a bolt includes a housing having one end engageable with the bolt, and a shaft coaxially mounted within the housing and having an opposite end engageable by a wrench. The shaft and housing are clutch-connected by a spring-loaded friction disc assembly, which is carried by the shaft and adjusted to slip when the torque applied to the bolt reaches a predetermined value. A visual indicator is provided which measures wear of the friction discs. A thrust bearing is provided at the bolt end of the housing to minimize friction loss between the adaptor and the work.

REFERENCES:
patent: 1433590 (1922-10-01), Ziegler
patent: 1463497 (1923-07-01), Bugatti
patent: 2606431 (1952-08-01), Elgin
patent: 3012456 (1961-12-01), Dracka
patent: 3585817 (1971-06-01), McCafferty
patent: 3662628 (1972-05-01), Schnepel
patent: 3695059 (1972-10-01), Laubach

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