System for guiding a tool

Details System for guiding a tool System for guiding a tool

1977-10-21

1980-09-02

Truhe, J. V.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318674, 250202, G05B 1936

Patent

active

042209030

ABSTRACT:
A system for guiding a tool according to a predetermined direction includes a detector head which photoelectrically scans a line of the pattern with the line varying in width at predetermined locations and with the output signals of the scanning photoreceptors being conductable to a switching device having an adjustable switching threshold so that when the scanning is in the area of the altered line width an auxiliary signal is formed in addition to the control signal for the coordinate motors.

REFERENCES:
patent: 3612818 (1971-10-01), Bechtle et al.
patent: 3860862 (1975-01-01), Dell et al.
patent: 3995154 (1976-11-01), Schlick et al.

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