Electronic device for controlling weft yarn insertion in looms

Details Electronic device for controlling weft yarn insertion in looms Electronic device for controlling weft yarn insertion in looms

1975-04-30

1977-10-04

Kee Chi, James

Textiles: weaving

Stopping

Weft

D03D 5134

Patent

active

040518710

ABSTRACT:
Electronic device for controlling weft yarn insertion in continuous weft feed looms, without shuttles, adapted to stop the loom and emit a corresponding signal, not only each time there is a breakage or absence of a weft yarn, but also whenever the undesired insertion of double wefts occurs. This device comprises a plurality of transducers, each activated by a weft yarn, a logic network and means for stopping the loom, said logic network comprising means for storing a predetermined law of insertion of the individual weft yarns corresponding to a certain weaving operation on the loom, and for comparing with said law the actual weft insertions detected by the transducers.

REFERENCES:
patent: 3526254 (1970-09-01), Schmitz
patent: 3528460 (1970-09-01), Spearman
patent: 3688958 (1972-09-01), Rydborn
patent: 3802468 (1974-04-01), Meyer et al.
patent: 3863241 (1975-01-01), Kamiyamaguchi et al.
patent: 3911969 (1975-10-01), Rydborn

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