The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1982
Filed:
Nov. 24, 1980
Donald J Dobbins, Waxhaw, NC (US);
Barmag Barmer Maschinenfabrik AG, Remscheid, DE;
Abstract
An apparatus and method for continuously winding a high speed running yarn are provided, and wherein empty bobbins are serially delivered to a winding position and the full bobbins are laterally moved from the winding position to a doffing position. An automatic yarn changeover mechanism is provided for transferring the running yarn from the full bobbin onto an empty bobbin which is brought to the winding position, and such that there is no yarn stoppage or loss of yarn during the changeover procedure. As part of the changeover procedure, the yarn is severed, with the severed end running onto the rotating full bobbin. In order to prevent this severed yarn end from contacting and becoming entangled in the closely adjacent empty bobbin then being wound at the winding position, there is provided air jet means which is operative during the changeover procedure to direct an airstream onto the surface of the rotating full bobbin to restrain the outward radial movement of the severed yarn end, with the airstream continuing until the full bobbin ceases to rotate.