Tool driving or impacting – Automatic control of power operated means – Tool advance causing or controlling means
Patent
1975-12-02
1977-04-26
Purser, Ernest R.
Tool driving or impacting
Automatic control of power operated means
Tool advance causing or controlling means
91325, B25B 2314
Patent
active
040195899
ABSTRACT:
A non-impacting nut running pneumatic tool in which torque pulses are transmitted by an oscillating air motor through a one-way clutch and reduction gearing to the work. A torque responsive cam clutch member responds to a pre-determined delivered torque to cause stalling of the motor by blocking off escape of exhaust air and to cause discontinuance of further torque transmission to the work by disabling the drive connection. Manually operable adjusting means is provided to regulate the value of torque delivered.
REFERENCES:
patent: 2499708 (1950-03-01), Whitledge
patent: 3253662 (1966-05-01), Sacchini
patent: 3440928 (1969-04-01), Pauley et al.
Chicago Pneumatic Tool Company
Purser Ernest R.
Rudy Stephen J.
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