Means and method for sensing loom conditions indicative of poten

Details Means and method for sensing loom conditions indicative of poten Means and method for sensing loom conditions indicative of poten

1981-01-07

1983-05-24

Kee Chi, James

Textiles: weaving

Stopping

Weft

250227, 250561, 250571, D03D 5134, G01N 2189

Patent

active

043845967

ABSTRACT:
A first sensor comprising interspersed light emitting and receiving fibers is situated at the egress slot of an air containment element on a fluid weft insertion type loom and retroreflectively senses filling yarn as it egresses from the element. The first sensor, placed along the length of the air containment tube, together with a second sensor outboard of the shed is used to discriminate filling yarn condition and the impact of those conditions on fabric quality. Signals from the first and second sensors are employed in a logical method to permit continued operation of the loom when particular faults are sensed but do not represent conditions warranting stopping of the loom, while said sensors do produce loom stopping signals when faults of predetermined values are sensed. Loom output efficiency is thus improved by allowing a controlled number of defects to enter the finished fabric.

REFERENCES:
patent: 3410316 (1968-11-01), Guittari
patent: 3613743 (1971-10-01), Sakamoto
patent: 4027982 (1977-06-01), Ohishi
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patent: 4146061 (1979-03-01), Goton
patent: 4147977 (1979-04-01), Dimmick
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patent: 4178969 (1979-12-01), Goton et al.
patent: 4188901 (1980-02-01), Suekane
patent: 4188981 (1980-02-01), Suekane et al.
patent: 4270579 (1981-06-01), Nakanishi

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