Method for transporting a weft thread through the weaving shed o

Details Method for transporting a weft thread through the weaving shed o Method for transporting a weft thread through the weaving shed o

1980-11-07

1984-05-08

Jaudon, Henry

Textiles: weaving

Special-type looms

139116, 139435, D03D 4100

Patent

active

044468938

ABSTRACT:
The speed of the movement of each weft thread through the shed is correlated with the speed of operation of the weaving machine by measuring the time occupied by movement of a weft thread through the shed, generating a first electrical signal which is a measure of such time, generating a second electrical signal which is a measure of a predetermined fraction of the time occupied by a weaving cycle of the machine, comparing said electrical signals and generating a third electrical signal which is a measure of the discrepancy between the first and second signals, and using the third signal to control one of such speeds in order to eliminate the discrepancy between the first and second signals.

REFERENCES:
patent: 4020877 (1977-05-01), Spisiak et al.
patent: 4298172 (1981-11-01), Hellstrom

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