Device for detecting the presence of an individual yarn in a lap

Details Device for detecting the presence of an individual yarn in a lap Device for detecting the presence of an individual yarn in a lap

1987-02-13

1988-03-01

Feldbaum, Ronald

Textiles: knitting

Stopping

Strand controlled

D04B 3526

Patent

active

047277327

ABSTRACT:
This invention relates to a device for detecting the presence of an individual yarn in an advancing lap of parallel yarns, constituted by: detector disposed on one side and in the vicinity of this advancing lap, adapted to detect the presence of a yarn moved away from the lap by a blower means disposed on the other side of said lap; an arrangement, controlled by the detector, for stopping the advancing lap or for triggering off an alarm system, wherein: it is composed, in known manner, of a plurality of parallel comb teeth, between which the advancing yarns pass; and the blower is placed at the base of said teeth and directs the flow of air towards the tip of these teeth. The invention is more particularly applicable to warp knitting machines.

REFERENCES:
patent: 3530690 (1968-03-01), Nickell et al.
patent: 3575515 (1971-04-01), Fertig
patent: 3628030 (1971-12-01), Fertig et al.
patent: 3677307 (1972-07-01), Fiorucci
patent: 3738124 (1973-06-01), Reynolds
patent: 4364247 (1982-12-01), Muns-Magemetal
patent: 4444132 (1984-04-01), Breitenbach
patent: 4549413 (1985-10-01), Flamig

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