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US 4,905,741 AGranted
Weft thread inserting device for pneumatic looms
AssigneeLindauer Dornier Gesellschaft mbH
InventorsAdnan Wahhoud, Rudolf Riezler
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AssigneeLindauer Dornier Gesellschaft mbH
InventorsAdnan Wahhoud, Rudolf Riezler
Estimating the term…
A pneumatic loom having at least two blow nozzles arranged in a bundle, is equipped with a weft thread insertion alignment device (2) located in a fixed position between the blow nozzles and the weft thread guide channel formed by the reed teeth. The alignment device (2) has an alignment slot having a funnel-shape receiving the weft threads at a wide inlet opening and leading the weft threads to a narrower outlet opening. The alignment slot extends along at least a portion of the path followed by the reed teeth on their beat-up motion. One end of the alignment slot is open toward the weft thread cutting scissors for exit of the weft threads. Weft threads waste is kept very low by the location of all relevant components close to each other. The effectiveness of the scissors is not impaired at all. The time available for the weft thread insertion is increased which means that the r.p.m. of the loom can be increased.
A weft thread inserting device for a pneumatic loom, comprising at least two thread inserting blowing nozzles forming a nozzle bundle and reed means having reed teeth forming a weft thread guide channel, means (10) securing said nozzle bundle to said reed means for moving with said reed means, stationary weft thread alignment means having an alignment opening formed as a funnel-type slot (2c) for leading weft threads into said guide channel, means mounting said stationary weft thread alignment means in a fixed position in a gap between said bundle of blowing nozzles and said weft thread guide channel of said reed teeth, said alignment slot (2c) of said stationary alignment means having a length in the direction of a beat-up motion of said reed, said length being sufficient for increasing the time duration available for a weft thread insertion into said weft thread guide channel while said reed means performs a beat-up motion.
Dependencies are inferred from the claim text.