Servo system for finishing objects materials

Electricity: motive power systems – Positional servo systems – Limit or end-stop control

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318601, 318569, 318570, G05G 500

Patent

active

039783863

ABSTRACT:
A servo system to permit the lens finishing for example, corresponding to a registered pattern and permit such finishing at desired pressure, etc. for the conveniences of the easy and effective grinding and finishing, in a manner that the detectors supply to the lower and upper limit voltage comparators the detectors outputs, which are then supplied to the logic circuits as well as the outputs for the servo-driving and the outputs from flip-flops, so that the servo motor rotates in normal and/or reverse directions.

REFERENCES:
patent: 3697779 (1972-10-01), Gee
patent: 3786331 (1974-01-01), Sommeria
patent: 3840794 (1974-10-01), Clement

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