Warp detection system

Details Warp detection system Warp detection system

1980-01-04

1981-11-17

Jaudon, Henry

Textiles: weaving

Stopping

Warp

139353, 356429, 250571, 66163, D03D 5120, G01N 2118

Patent

active

043005993

ABSTRACT:
Loss of tension in individual warp threads is detected in the lease zone by directing a flow of air against one side of the warp threads within the lease zone to displace any relatively untensioned thread toward the opposite side of said zone and detecting such displacement photoelectrically. Preferably, the photoelectric detector is insensitive to disturbances other than thread displacement.

REFERENCES:
patent: 2438365 (1948-03-01), Hepp et al.
patent: 2884017 (1959-04-01), Jenkel
patent: 3530690 (1970-09-01), Nickell et al.
patent: 3575515 (1971-04-01), Fertig
patent: 3738124 (1973-06-01), Reynolds

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