Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1984-11-06
1987-03-24
Wan, Gene
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
G01N 2180
Patent
active
046527362
ABSTRACT:
In a machine cloth is disposed a guide line which extends in the crosswise direction of the cloth. The configuration of the guide line is sensed by sensors and is displayed on a screen so that distortions or deviations in the machine cloth becomes visible to the operators who may rapidly take measures to correct the incorrect position of the machine cloth.
REFERENCES:
patent: 2955969 (1960-10-01), Runton
patent: 4293841 (1981-10-01), Potter
Nordiskafilt AB
Wan Gene
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