Apparatus for detecting residual yarn

Details Apparatus for detecting residual yarn Apparatus for detecting residual yarn

1990-03-15

1992-06-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250234, 250561, 139452, 356429, G01N 2186, D03D 4736

Patent

active

051189585

ABSTRACT:
A bobbin discharge apparatus having a device for detecting a remaining yarn of a bobbin. A non-contact type sensor such as a photo sensor for detecting the presence or absence of the remaining yarn on a bobbin is arranged on a carrier passage of bobbins, and the bobbin and the sensor are provided relatively movably.

REFERENCES:
patent: 3777168 (1973-12-01), Sansone
patent: 3971522 (1976-07-01), Pfarrwaller
patent: 4276910 (1981-07-01), Eichenberger
patent: 4865085 (1989-09-01), Ghiardo
patent: 4936356 (1990-06-01), Ghiardo

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