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US 3,941,322 AGranted
Textile yarn processing
AssigneePlatt Saco Lowell Limited
InventorArthur Raymond Hewitt
Life of this patent
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AssigneePlatt Saco Lowell Limited
InventorArthur Raymond Hewitt
Estimating the term…
In replacing a completed yarn package by an empty bobbin tube in a yarn processing machine, the running yarn delivered to the completed yarn package is severed, the severed yarn is delivered to a yarn collection zone, the running yarn is engaged with an empty bobbin tube without halting delivery of the yarn from the yarn collection zone, the completed yarn package is removed from a bobbin tube support and replaced by the yarn engaged with the empty bobbin tube while the yarn continues to be delivered to the yarn collection zone, and the empty bobbin is rotated to wind on yarn delivered to it to form a package thereon. While the running yarn is delivered to the yarn collection zone and before the empty bobbin tube is placed on the support, the yarn is so engaged with the bobbin tube that the running yarn is permitted to continue to pass to the yarn collection zone before and after the bobbin tube has been placed on the support and without rotation thereof and is so engaged that when the bobbin tube rotates the running yarn is constrained to rotate therewith to commence winding of the running on the tube. A reserve winding may be formed at one end of the empty bobbin from yarn withdrawn from the yarn collection zone.
A method of replacing a completed yarn package by an empty bobbin tube in a yarn processing machine including the steps of severing the running yarn delivered to the completed yarn package, delivering the severed yarn to a yarn collection zone, engaging said running yarn with an empty bobbin tube without halting delivery of said yarn to the yarn collection zone, removing said completed yarn package from a bobbin tube support and replacing it by the yarn engaged empty bobbin tube while continuing delivery of said yarn to said yarn collection zone and commencing rotation of said empty bobbin to wind on yarn delivered thereto to form a package thereon, characterized in that during the step of delivering the running yarn to the yarn collection zone and before the empty bobbin tube has been placed on the support, the yarn is so engaged with the bobbin tube that the running yarn is permitted to continue to pass to the yarn collection zone before and after the bobbin tube has been placed on the support and without rotation thereof and is so engaged that when the bobbin tube rotates the running yarn is constrained to rotate therewith to commence winding of the running yarn on the tube.
A method of winding yarn on a empty bobbin in a yarn processing machine, comprising the steps of delivering a running yarn to a yarn collection zone, engaging said running yarn with an empty bobbin without halting delivery of the running yarn to the yarn collection zone, rotating said empty bobbin to wind the running yarn thereon, and forming a reserve winding at one end of the empty bobbin from yarn withdrawn from the yarn collection zone.
Apparatus for winding yarn on an empty bobbin comprising yarn delivery means for continuously delivering a running yarn, a bobbin tube, and bobbin supporting means supporting the bobbin tube, yarn collection means for collecting a running yarn delivered by said delivery means, yarn passage means formed in the bobbin tube defining a yarn engaging portion and providing means defining a clearance between the tube and the bobbin supporting means when the tube is supported thereon for the passage of the yarn through the bobbin tube to the yarn collecting means.
Dependencies are inferred from the claim text.