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US 4,183,382 AGranted
Apparatus for weft insertion in a weaving loom
OwnerWalter Scheffelinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for picking a weft through the shed of a loom in which separator elements interposed between the warp threads are provided with a recess defining a passageway along which the weft thread is conveyed during the picking operation. The picking is accomplished by fluid jets, preferably in the form of compressed air, which are directed angularly toward the passageway in the picking direction.
Claims23
Apparatus for inserting a weft through the shed of a loom by means of fluid comprising in combination:
- a plurality of elements arranged in a row adapted to receive warp threads therebetween, coplanar reeds on the side of said elements opposite the fabric side thereof, recess means formed in said elements and defining weft passage means open on the reed side of said elements, means for rocking said elements and reeds in a circular arc and means for directing a fluid jet generally longitudinally of and in converging relation with said weft passage means in the picking direction to convey a weft along said passage means, at least a portion of said means for directing the fluid jet comprising aperture means formed in a channel of at least some of said elements, at least some of the elements at the downstream end of said jet including a notch to form a continuation of the channel for said jet.
Apparatus for inserting a weft through the shed of a loom by means of fluid comprising in combination:
- a plurality of elements arranged in a row adapted to receive warp threads therebetween, coplanar reeds on the side of elements opposite the fabric side thereof, recess means formed in said elements and defining weft passage means formed in said elements and defining weft passage means open on the reed side of said elements, means for rocking said elements and reeds in a circular arc and means for directing a fluid jet generally longitudinally of and in converging relation with said weft passage means in the picking direction to convey a weft along said passage means, at least a portion of said means for directing the fluid jet comprising aperture means formed in a channel of at least some of said elements, at least some said elements including openings for said fluid jet, said openings being aligned in the direction of said jet, at least some of the elements at the downstream end of said jet including a notch to form a continuation of the channel for said jet.
Dependencies are inferred from the claim text.