Overspeed saftey control mechanism for rotary tools

Details Overspeed saftey control mechanism for rotary tools Overspeed saftey control mechanism for rotary tools

1974-08-28

1976-01-13

Vrablik, John J.

Rotary expansible chamber devices

Speed controlled

Weight rotates about axially extending axis

137 57, F01C 2112, G05D 1310

Patent

active

039320715

ABSTRACT:
Overspeed safety control mechanism for shutting off operating air flow to the motor of a rotary surface grinding tool when the motor overspeeds beyond a rated governed maximum, including a circular body rotatable with the motor and carrying a ball valve which is adapted to be centrifugally released and entered into a pocket to block flow of operating air to the motor when the latter overspeeds, the speed of the motor being normally controlled by a speed governor.

REFERENCES:
patent: 3749530 (1973-07-01), Amador

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