Device for monitoring the yarn travel in the shuttle of a shuttl

Details Device for monitoring the yarn travel in the shuttle of a shuttl Device for monitoring the yarn travel in the shuttle of a shuttl

1975-05-16

1976-07-20

Kee Chi, James

Textiles: weaving

Stopping

Weft

1393701, 28 51, 66163, D03D 5134

Patent

active

039701158

ABSTRACT:
A device for monitoring the travel of a yarn, particularly weft yarn in the shuttle of a loom, which device is designed as an assembly or unit comprising a piezoelectric transducer element, a yarn feeler member fixedly bonded with the transducer elements and arranged as a unilaterally clamped flexural vibratory member, and an induction coil operatively connected with the piezoelectric transducer element, and wherein a yarn guide means is provided at or near the free end of the vibratory yarn feeler member such that the yarn when traveling acts upon said feeler member in a restricted area thereof.

REFERENCES:
patent: 3298401 (1967-01-01), Stutz
patent: 3433273 (1969-03-01), Loepfe
patent: 3467149 (1969-09-01), Dosch et al.
patent: 3593756 (1971-07-01), Vella
patent: 3613744 (1971-10-01), Dosch et al.
patent: 3676769 (1972-07-01), Loepfe
patent: 3802469 (1974-04-01), Loepfe
1,535,398, 9-3-1970, German Application (Engels) 139-370 A

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