Apparatus for scanning the markings on bottle necks

Details Apparatus for scanning the markings on bottle necks Apparatus for scanning the markings on bottle necks

1979-01-11

1981-09-15

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

209524, G01V 904

Patent

active

042899613

ABSTRACT:
In an apparatus for scanning the markings on foils on the necks of the bottles in a bottle labeling machine having a photoelectric scanner including a light source and a lens for illuminating the foil on the bottle neck, a one-way mirror in the path of the light, a photosensitive receiver and a first amplifier connected thereto, the improvement wherein the photosensitive receiver comprises a pair of photoelectric elements respectively provided on the upper and lower edges of the lens, and an integrating amplifier operatively connected to each output of the pair of photoelectric receivers. The photoelectric elements are preferably photocells located either within or outside the lens in a line parallel to the bottle axis and diametrically to the lens. A selector switch may be provided to switch from the integrated output-scanning to auto-collimation.

REFERENCES:
patent: 3283162 (1966-11-01), Quittner
patent: 3430766 (1969-03-01), Stone
patent: 3533657 (1970-10-01), Da Silva

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