US 2328541 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
sept- 1943- M. R. BACHLOTTE 2,328,541
YARN GUIDE Filed Dec. 4, 1941 20 mmmmmmmmm 2 I 2 17 mmmnmnnmmmg w A mnmmmmm INVENTOR ATTORNEY Patented Sept. 7, 1943 YARN GUIDE Old Hickory, Tenn, as-
Maurice R. Bachlotte,
signor to E. L dn Pon t de Nemours & C'om pany, Wilmington, Del., a corporation of Delaware Application December 4, 1941, Serial No. 421,602
4 Claims.' (01. 242-157) This invention relates to a new and improved thread guide suitable for use in guiding threads, yarns, filaments, and the like in winding, reeling, twisting, and similar textile operations.
Many different forms of thread guides have been proposed heretofore for directing the course of travel of yarns or the like in textile operations. Ring-type guides comprising a completely closed circular guide eye are often unsuitable since the yarn must be tediously threaded through the closed eye in the manner of threading a needle. The art has, therefore, developed helically coiled pigtail guides which may be more readily threaded by pressing the yarn between the helically coiled elements thereof. The major difliculty arising from the use of helically coiled pigtail guides is that the yarn passing therethroughoccasionally jumps out resulting in a poorly wound or irreparably damaged yarn. To prevent the yarn from getting out of this confining space, many helically coiled wire guides have been constructed with rather long terminal shanks which have overcome this defect to a very considerable extent. Guides constructed with long terminal shanks, however, are more dimcultly threaded and frequently a good deal of time is lost thereby.
It is, therefore, an object of this invention to provide an improved thread guide that can be easily and quickly threaded but which will confine the yarn under all sorts of adverse operating conditions so that the yarn leaves the guide only when it has run through or becomes broken.
. Other objects will be apparent from the description that follows.
The thread guide of the present invention comprises a wire bent back upon itself to form a bight and two legs diverging from said bight, said wire coiled to form a guide eye with the bight of the wire positioned between said diverging legs. i
The details of the invention will be more readily understood by reference to the following description when taken in connection with the accompanying illustrations, in which;
Figure 1 is a side elevational view of a thread guide constructed in accordance with the present invention.
Figure 2 is a bottom plan view of the thread guide shown in Figure 1.
Figure 3 is a top plan view of a modified form of thread guide constructed in accordance with the present invention.
Figure 4 is a side elevational view of the thread guide shown in Figure 3.
Figure 5 is a diagrammatic side elevational view showing thread guides constructed in accordance with this invention in use in a downtwisting apparatus.
Referring to Figures 1 and 2 of the drawing, reference numeral 1 I designates the bight formed by bending a wire back upon itself. The two legs [3 and I5 diverge from the bight II and. are brought together to be anchored in shank I I. Thewire is coiled to form a guide eye I9 with the bight I I positioned between the diverging legs I3 and I5. The line 20 shows the position of a yarn in the guide.
The thread guide shown in Figures 3 and 4 of .the drawing is similar in construction to the guide shown in Figures 1 and 2, the only exceptions being that the wire is coiled in the form of a narrow round-ended slot to form the guide eye 19a, and the legs l3 and I5 are brought down to a curved shank Ila.
Both of the above-described thread guides can be readily threaded by holding the yarn above and below the guide under a slight tension and pressing the yarn into the acute angle a: between the legs adjacent the shank and the guide eye. Since the bight of the wire is positioned between the diverging legs the yarn will not readily slip out of the guide eye.
The thread guide is particularly suitable for use in directing a yarn which is being ballooned as in a, yarn twisting operation. Figure 5 of the drawing illustrate guides constructed in accordance with this invention positioned to direct the ballooning yarn being removed from a fixed package of yarn 2| and again in controlling the balloon of a yarn passing to a pirn 23 of a downtwisting apparatus.
The legs of the wire which project from the eye need not necessarily be anchored in a separate shank element. They may themselves be fastened to a support and thereby serve as the shank.
The yarn guide of this invention may be constructed of any desirable smooth-surfaced, wearresistant material such as stainless steel, porcelain or the like. Preferably, it is constructed from steel and is chromium plated and polished to a mirror-like finish.
Since it is obvious that many other changesand modifications of the above-described details can be made without departing from the nature and spirit of the invention, it is to be understood that the inventionis not to be limited to'the above described details except as set forth in the appended claims.
1. A thread guide comprising a wire bent back upon itself to form a 'bight and two legs diverging from said bight, the bight of said wire and adjacent portions of said two legs coiled back upon themselves to form a guide eye with the bight of the wire positioned between said diverging legs.
2. A thread guide comprising a wire bent back upon itself to form a bight and two legs diverging from said bight, the bight of said wire and adjacent portions of said two legs coiled back upon themselves in the form of a circle to form a guide eye with the bight of the wire positioned between said diverging legs.
3. A thread guide comprising a wire bent back upon itself to form a bight and two legs diverging from. said bight, the bight of said wire and adjacent portions of said two legs coiled back upon themselves in the form of a round-ended slot to form a guide eye with the night of the wire poitioned between said diverging legs.
4. A thread guide formed of a loop of wire having a bight portion and two legs diverging from each other from said bight portion, said bight portion and adjacent portions of said legs coiled to form a guide eye in which all of said portions are co-cylindrical and said bight portion positioned between said legs.
MAURICE R. BACHLO'I'TE.