Tools – Wrench – screwdriver – or driver therefor – Responsive to torque on work
Patent
1982-05-19
1984-07-17
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Responsive to torque on work
B25B 23142
Patent
active
044598823
ABSTRACT:
An input shaft and a main shaft which transmits torque from the input shaft to torque amplifying means are separately provided and a horseshoe-shaped elastic member is deformed according to the applied torque, thereby the overloaded transmission of torque to the main axis is prevented and a rough amount of transmitted torque is indicated at a surface of the wrench.
REFERENCES:
patent: 3744350 (1973-07-01), Raff
patent: 4155278 (1979-05-01), Estok
patent: 4249435 (1981-02-01), Villeneuve et al.
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