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US 4,813,460 AGranted
Device for the insertion of weft threads into the shed of air-looms and adjustable blowers used to this end
AssigneePicanol N.V.
InventorsPhilippe Van Bogaert, Jean-Marie Bamelis
Life of this patent
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Abstract
A device for the insertion of weft thread into a shed of air insertion looms primarily consists of the combination of a main nozzle, and of at least one auxiliary nozzle fixedly mounted before the main nozzle, the latter having an adjustable flow-through aperture for regulating the jet insertion medium. Associated with each auxiliary nozzle, a control means is utilized for the adjustment of the flow-through aperture. Various embodiments of aperture control are described.
Claims11
A device for fluid insertion of a weft thread into a shed of an air-jet weaving loom, comprising:
- a main weft insertion nozzle adjacent the insertion end of a loom shed, said main nozzle is being secured to said sley for movement therewith relative to said auxiliary nozzle;
- at least one stationary auxiliary nozzle mounted upstream of said main nozzle in weft feeding communication with said main nozzle, said auxiliary nozzle comprising an adjustable flow-through aperture for varying the flow of an insertion fluid through said auxiliary nozzle;
- and
- a control means in driving connection with said adjustable flow-through aperture, said control means arranged to adjust said adjustable flow-through aperture to vary the flow of the insertion fluid through said auxiliary nozzle.
1 more element
Dependencies are inferred from the claim text.