Apparatus for presenting weft threads to a gripper in shuttleles

Details Apparatus for presenting weft threads to a gripper in shuttleles Apparatus for presenting weft threads to a gripper in shuttleles

1987-05-26

1988-11-22

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4738

Patent

active

047858567

ABSTRACT:
Weft threads are presented to a gripper in shuttleless looms by needles, each guided by at least one straight guide held askew in a needle guide carrier (9). These straight needle guides due to their askew arrangement make sure that all needles together are located in and displaceable in a fan type plane twisted in space. In the working position for presenting a weft thread each needle eye is located on a short line (7) extending approximately in parallel to a gripper path. Thus, all weft threads in their presenting position are close to each other in a narrow presenting zone within the reach of the gripper path for a sure gripping at the beginning of the forward gripper motion. At its beginning the gripper speed is still slow so that the weft threads are gripped gently. The straight needle guides held askew in the at least one guide carrier (9) form a row of guides which is slanted by a given angle relative to the gripper path to form the fan type plane twisted in space. A second row of askew straight guides may be arranged in a second guide carrier ( 10).

REFERENCES:
patent: 4076054 (1978-02-01), Merisio
patent: 4160468 (1979-07-01), Camprubi
patent: 4406312 (1983-09-01), Egbers et al.
patent: 4556089 (1985-12-01), Juillard

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