Control device for a periodically oscillating member

Details Control device for a periodically oscillating member Control device for a periodically oscillating member

1977-12-02

1979-09-11

Smith, Jr., David

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

192142R, 318282, 318468, 318267, H02P 500, H02P 700

Patent

active

041676947

ABSTRACT:
A control device is disclosed for controlling the drive means and consequently the oscillation range of a periodically oscillating member particularly when it is necessary to maintain the speed of the periodic oscillation movement such that it corresponds to the average speed of another drive unit. Two movably mounted sensors are located near opposite ends of a predetermined oscillation range of the oscillating member. When either of the sensors senses the presence of the oscillating member beyond the predetermined oscillation range, a signal is generated by the sensor which is transmitted to control means adapted to adjust the speed of the drive means operating the oscillating member.

REFERENCES:
patent: 1936572 (1933-11-01), Carroll et al.
patent: 2105514 (1938-01-01), Welch
patent: 2854113 (1958-09-01), Hallden
patent: 3825809 (1974-07-01), Gatland et al.

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