Weft thread-selection apparatus for a weaving machine

Details Weft thread-selection apparatus for a weaving machine Weft thread-selection apparatus for a weaving machine

1982-05-24

1984-03-27

Jaudon, Henry

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4738

Patent

active

044387911

ABSTRACT:
A weft thread-selection apparatus for a weaving machine or loom comprises a carrier or support element which oscillates or pivots in cycle with the weft thread-insertion frequency. The oscillatable support element carries at its free end a number of electromagnetic devices, for instance electromagnets corresponding to the number of thread infeed rods and is rotatably supported at its other end for pivotal movement about a shaft. This shaft simultaneously constitutes the pivot point for oscillatable or pivotal arm members, each of which is retained under the action of spring means in its preparatory position. Each of the oscillatable or pivotal arm members is hingedly connected at its free end with one of the thread infeed rods and each oscillatable arm member carries a magnet armature intended to cooperate in a coupling fashion with one of the electromagnets. The row of electromagnets extends below the oscillatable or pivotal arm members. The electromagnets, when magnetically coupled with the magnet armatures located at the oscillatable arm members, drag these arm members into their thread transfer position. These measures afford a particularly simple and robust, easy to control weft thread-selection apparatus.

REFERENCES:
patent: 3315708 (1967-04-01), Scheffel
patent: 4076054 (1978-02-01), Merisio
patent: 4132249 (1979-01-01), Camprubi
patent: 4191222 (1980-03-01), Marshall
patent: 4298034 (1981-11-01), Viscardi

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