Method for monitoring the width of material in strip form

Details Method for monitoring the width of material in strip form Method for monitoring the width of material in strip form

1987-08-12

1989-03-28

Lindsay, Robert L.

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

65160, 358107, 364473, C03B 1804, G05B 2102

Patent

active

048160520

ABSTRACT:
The image of an edge (MK) of material in strip form, the width of which is to be monitored, is stored and shifted toward both sides parallel to the tolerance limits (TG1, TG2). The coordinates of the picture elements of the tolerance limit (TG1, TG2) are stored and compared with the coordinates of the picture element of the respective actual edge (AK). If its picture elements lie on or outside of the tolerance limits (TG1, TG2), an indication signal is generated.
The method is used in the manufacture of plate glass.

REFERENCES:
patent: 3321575 (1967-05-01), Lewczyk
patent: 3779731 (1973-12-01), Pollock et al.
patent: 3977858 (1976-08-01), Taguchi
patent: 4096525 (1978-06-01), Latham
patent: 4310850 (1982-01-01), Casler
patent: 4367487 (1983-01-01), Klein et al.
patent: 4498778 (1985-02-01), White

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