Yarn-break/yarn-stop detecting device

Details Yarn-break/yarn-stop detecting device Yarn-break/yarn-stop detecting device

1980-02-20

1982-07-27

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356238, G01N 2186

Patent

active

043419585

ABSTRACT:
In a photoelectric yarn-break/yarn-stop detecting device in which a light emitter element and a photoelectric transducer element are positioned in such a manner that the yarn to travel through the detecting device passes through the beam of light emitted from the light emitter element to the photoelectric transducer element for detecting a break or a stop of the yarn in the absence of noises in the signal current produced by the photoelectric transducer element, the light emitter and photoelectric transducer elements and the path of the light from the light emitter element to the photoelectric transducer element are enclosed within a structure adapted to prevent passage of light and an ingress of dust and flue from the outside of the detecting device.

REFERENCES:
patent: 2991685 (1961-07-01), Van Dongeren
patent: 3158852 (1964-11-01), Schacher
patent: 3712743 (1973-01-01), Harris et al.
patent: 4150699 (1979-04-01), Suekane

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