Torque responsive, dual speed rotary power driver

Details Torque responsive, dual speed rotary power driver Torque responsive, dual speed rotary power driver

1979-02-21

1981-11-17

Mackey, Robert

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

81 5722, 91 59, 92 33, 92136, B25B 23145

Patent

active

043006418

ABSTRACT:
A rotary power driver is provided which drives with a two-stage torque and speed control, wherein the initial driving is done at higher speed and lower torque, and a subsequent higher torque is automatically imposed with lower speed. The second stage is a selected pre-set stage, with provision for the selected torque built into the driver. The second stage is imposed on the drive shaft by a one-way clutch or ratchet drive.

REFERENCES:
patent: 3438451 (1969-04-01), Hayes, Jr.
patent: 3897834 (1975-08-01), Swopsher et al.

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