Device for the control of the weft yarn in the looms operated by

Details Device for the control of the weft yarn in the looms operated by Device for the control of the weft yarn in the looms operated by

1987-05-18

1989-02-21

Jaudon, Henry S.

Textiles: weaving

Stopping

Weft

D03D 5134

Patent

active

048056715

ABSTRACT:
The device includes optical means for the reflection of a pencil of energy of the luminous type, that reaches a sensor, which reflection optical means are formed by surfaces optically polished having the thickness of a hollow of a metallic foil inserted between two blades of the reed; on the optical path or course there are provided first optical cylindrical condensation means of the energy towards the first of said surfaces, which precedes the crossing of the channel where the weft is located, and second optical condensation means, after said crossing and towards the sensor.

REFERENCES:
patent: 4188981 (1980-02-01), Suekane et al.
patent: 4592394 (1986-06-01), Bobbola
patent: 4716942 (1988-01-01), Jensen

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