Selvedging device with threading nozzle and tuck-in needle

Details Selvedging device with threading nozzle and tuck-in needle Selvedging device with threading nozzle and tuck-in needle

1991-01-22

1992-01-14

Falik, Andrew M.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4748

Patent

active

050801430

ABSTRACT:
A pneumatic selvedging device for a loom has a weft yarn end temporarily retained by a threading nozzle. A tuck-in needle takes over the retained weft yarn end for drawing in between the warp yarns of a loom. The threading nozzle is mounted on a retaining arm which is pivotally mounted on a shaft disposed within a casing above the cloth and near the beating-up edge for the weft yarn. A second drive shaft is mounted in the same casing transverse to the shaft for the retaining arm for driving the tuck-in needle. The shaft for the tuck-in needle and the shaft for the threading nozzle are driven off a common drive shaft via cams and cam follow-up levers. A shears may also be mounted on the retaining arm and be actuated by a link pivotally connected between a pivotal blade of the shears and the casing.

REFERENCES:
patent: 4905740 (1990-03-01), Verclyte
patent: 4909283 (1990-03-01), Verclyte
patent: 4957145 (1990-09-01), Verclyte et al.

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