US2585584A - Yarn package and method of winding - Google Patents

Description

Feb. 12, 1952 F. S. POLLOCK, JR

YARN PACKAGE AND METHOD OF WINDING Filed Dec. 29, 1949 INVENTOR. Emu/6 5 PolloclgJ BY 74M; aw

ATTORNEY Patented Feb. 12, 1952 man PACKAGE AND mz'rnon or wnmmo Frank S. Pollock, Jr., Martinsvllle, Va., assignor to E. I. du Pont de Nemours and Company, Wilmingto n, Del a corporation of Delaware Application December as, 1949, Serial No. ssue 2 Claims.

This invention relates to the production of yarn packages having a magazine wrap or transfer tail and to the packages so produced.

The magazine wrap or transfer tail is common- I 1y understood in the art to bea portion of the inner end of the first yam wound on the yarn support and so disposed as to be positively secured during the windingof the remainder of the yarn package, yet readily available for tieing directly to the outer end of the yarn on another yarn package when so desired. The purpose for providing a magazine wrap or transfer tail on the yarn package is to enable an uninterrupted flow of yarn to be maintained from a depleted yarn package to a full yarn package adjacent thereto in a creel or other yarn package holder, upon whichthe yarn packages are supported.

In the past when it was desired to wrap a.

transfer tail, it was the procedure to disconnect the traversing mechanism momentarily when starting to wind a package and guide the yarn onto the base of the rotating core on which the package was to be formed. After a suitable bunch was built, the yarn was engaged in the traversing mechanism and a yarn package was formed on the remainder of the core. This method of making a transfer tail has a disadvantage in that the first yarn wound in the bunch is covered by the rest of the yarn in the bunch and the end is not available for the tieing of a transfer tail. .By cutting off most of the bunch the yarn can be freed, but two or three back wraps of yarn on the package is about all that is then available for tieing the transfer, instead of the entire amount of five to ten yards which would be available if the inner end of the yarn were obtainable. If the inner end were available, the entire bunch could be unwound by hand and utilized to tie any new package.

Another difiiculty in using a transfer tail package of this type is that in cutting off the bunch to obtain the small amount of yarn available as a transfer tail, the bobbin, which is usually wood or reinforced cardboard, is usually cut slightly in the process and presents a roughened surface that adds difiiculty to the re-use. This roughened surface may result in snags in the yarn as it is being wound on the bobbin, which defects are not desirable to the trade. I

It is an object of the present invention to provide an improved method of winding yarn packages to provide a secure magazine wrap which can be unwound readily for use as a transfer tail. It is a further object of the invention to provide an improved yarn package having a well-secured 2 magazine wrap which can be readily released for use as a transfer tail. Other objects of the invention will become apparent from the following disclosure and the appended claims.

In accordance with this invention ayam package is wound on a bobbin or core having a snugly fitting, yet easily removable, narrow sleeve encircling one end of the core at a point spaced from that portion of the core where the majority of the yarn is wound. The first few yards of yarn are wound in a bunch on the sleeve, which provides a removable support for the transfer tail, and the package is then built up on the main portion of the core in the normal manner.

In the drawing. which illustrates one form of yarn package using the improved support of this invention,

Fig. 1 represents a yarn package wound on a.

7 suitable core and transfer tail support, and

Fig. 2 represents the transfer tail support detached from the main core.

. first portion of the package wound and contains the inner end of the yarn.

The sleeve I, which forms the transfer tail support, is shown 01! the bobbin in Fig. 2. In the simple embodiment shown the sleeve might be formed by bending a rectangular sheet of metal into a ring of the proper inside diameter to fit snugly on the bobbin. It is evident that the transfer tail support may be modified in many simple ways to be most suitable for a particular yarn package, and may be made of a variety of materials such as paper, cardboard, plastics and various metals, depending upon the application.

In preparing a yarn package, the transfer tail support is slipped on the base of the bobbin l2 and the bobbin is placed on a' suitable ring twister. winding machine or other yarn packaging device. The spindle is rotated and the yarn is guided onto the transfer tail support until a suitable hunch is built for use as a transfer tail. Then the yarn is guided by a traversing mechanism to build up a conventional package on the remainder of the core.

An alternative procedure may be called an anchored end start. In this can. with the yarn disengaged from the traversing mechanism, the free end of the yarn is wrapped around the spindle and the'bobbin, with the transfer tail support in place, is put on thespindle, thus anchoring the yarn end. The spindle is then started up as before and the yarn guided onto the transfer tail ring for a moment to build a transfer tail, after which the yarn is'engaged with the traversing mechanism and the package is wound.

In some operations, such as drawing or twisting, the yarn used for stringing-up is not uniform with respect to the yarn being wound when the spindle is up to running speed. In such circumstances it is simple to have a waste takeup spool at the base of the spindle to receive the first yarn prior to winding the transfer tail. This will insure having a transfer tall with the same yarn characteristics as the yarn in the package.

The procedureto be followed when using the transfer tail of the yarn package of this invention is very simple. All that is, necessary is to disengage the ring. carrying the transfer tail bunch from the bobbin and allow it to unwind by dropping it. This makes the entire bunch of yarn, including the inner end, available for use as a transfer tail, so that a new yarn package may be tied in easily.

This invention is not restricted to the use of any one type of yarn core or twisting or winding apparatus, since it may be used advantageously for any twisting or winding operation in which it is desired to wind a transfer tall at a point spaced from the main body of the yarn. The

ring portrayed inFig. 2 is the simplest embodiment of transfer tail support, but changes in the designmay be made without departing from the spirit or scope of this invention as denned in the appended claims.

What is claimed is:

1. An improved method of winding a yarn package which comprises placing a snugly fitting yet easily removable sleeve over one end of a bobbin, placing the bobbin on the spindle of a winding machine, rotating the bobbin, guiding a few yards of yarn onto the rotating bobbin so that the yarn winds in a bunch on the sleeve'to provide a magazine wrap for use as a transfer tail, and then guiding the yarn with a traversing mechanism onto the remainder of the bobbin and winding a yarn package.

2. In a yarn package comprising yarn wound around a core support, the improvement which consists in providing, as a support for the first few yards of yarn wound, an easily removable narrow sleeve encircling one end of the core and spaced apart from the' main part of the yarn package so that these first few yards of yarn may be readily disengaged from the rest of the yarn package and. unwound for use as a transfer tail.

FRANK S. POLLOCK, J a.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number 7 Name Date 822,224 Ryden May 29, 1906 1,444,414 Colman Feb. 6, 1923 2,395,891 Lodge Mar. 5, 1946 FOREIGNPATENTS Number Country Date 619,038 Great Britain Mar. 3, 1949

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