US2202937A - Thread guide - Google Patents

Description

June 4, 194m K, A, WOLFE f 2,202,937Y

THREAD GUIDE Filed July 28, 1958 INVENTOR KINSEY A WoLE ATTORNEYS Patented June 1940 UNITED STATES THREAD GUIDE Kinsey A. Wolfe, Cumberland, Md., assignor to Celanese Corporation of America, a corporation of Delaware Application July 28, 1938, Serial Ne. 221,675

7 Claims.

v normally tends to cut the same.

Another object of this invention is to provide an improved thread guide adapted to be employed in any place where it has heretofore been necessary to use a pigtail guide or rover, but more particularly adapted to be employed asa balloon guide over the end or center of any bobbin on any textile machine,

A further object of this invention is to provide a. thread guide which is easily applied to any textile machine and which is adapted to be automatically threaded.

Still anoth'er object of this invention is the provision of a novel method of making the thread y guide of the present invention. Other objects of the invention will appear from the following detailed description and drawing.

In the drawing, wherein like reference numerals refer to the same or similar elements in the respective views:

Fig. 1 is a plan view of a guide constructed in accordance with this invention,

Fig.- 2 is a plan View of the reverse vside oi a guide shown in Fig. 1,

Fig. 3 is a sectional view, taken on line 3-3, of Fig. 2,

Fig. 4 is a detail view of a stamping to be bent into the guide shown in Fig. 1,

Fig. 5 is a plan view of a guide constructed in accordance with this invention and differing -from Fig. 1 in that the thread openings are at an angle'of about 160 from each other, Whereas the openings in Figs; 1 and 2 are at an angle of about 90 from each other,

Fig. 6 is a plan View of the reverse side of the guide shown in Fig. 5,

Fig. 7 is a sectional view, taken on line 1 1, of

l Fig 6, and

pensive'they areeconomically justified bythe reduction in replacements and labor. A further advantage of the guides constructed in accord.- ance with this invention is that they may be easily threaded and yet have an almost circular contact with the thread when ballooning..

In accordance with my invention, I form thread guides, particularly adapted as a balloon guide directly above a bobbin, from a relatively at sheet material by stamping the same to desired coniiguration, bending it to form a double lay- -ered article and then inserting therein a wearresisting insert suc-h as those made of boron carbide where the same will contact with the thread. The stem of the holder may be made in any 5 suitable shape which may be readily attached to any type of machine. such as the spinning machines where artificial threads ar'e produced, pirn .wnders, etc.

As an aid in understanding the invention, the same will be described with particular reference to the drawing. ,InFigs l, 2, 3 and 4 there is shown a guide having a stem I which may be axially aligned with the thread guide as shown but which may `also beset at an angle to the same. The stem may be threaded or otherwise adapted for ready attachment to any machine requiring thread guides. The head of the thread guide is formed by stamping a suitable shaped member 2 from a suitable metal such as sheet iron, brass, etc. The blank is provided with circular holes 3 and 4 having cutout portion 5 leading to the hole 3 and a cutout portion 6 leading to the hole 4. These cutout portions 5 and 6 may be placed at any suitable angle to each other. However, for making the guide shown in Figs. 1 and 2 these cutout portions 5 and 6 are at an angle of substantially 90 to each other. The guide shown in Figs- 5:'6, 7 and 8 differs from that shown in Figs. l, 2, 3 and 4 in the position of .the cutout portions which in the latter guide are numbered 'l and 0 and are located at an angle of about. 160 to each other. Obviously the cutout portions may be at any angle to each other, depending upon the ease of threading required and the possibility of the ballooning thread jumping from the guide.v

The holder and blank may be made of any suitable metal. The blank is cut in one piece preferably by a suitable die mounted in a -stamping machine. The stamping 2 is then folded upon itself to forma two layer thread guide. Alternatively, the blank may be made of two pieces and welded, brazed or sweated in position. After the two layer thread guide is formed, a round or square rod, either plain or threaded and of the length desired, is then welded or brazed to the end of the holder forming a stem i. A piece of asbestos is then inserted between the folded insert guide holder and a guide button or eyelet 9 made of suitable wear-resisting alloy and of substantially the same conflguration'of the hole is silver soldered or otherwise welded, glued or cemented in place in the hole of each layer of the holder. The size or shape of the hole in the blank may be varied to' substantially any type or shape of insert button. All of the edges of the blank or stamping which the yarn may touch are rounded perfectly smooth and polished. These guides when made as above described are automatically threaded when the moving yam is placed or thrown on th'e guide between the prongs il formed by the two layers of the thread guide.

The purpose of this new thread guide is to make it possible to use hard metal alloys or molded insert buttons or eyelets such as those made of Norbide, Carboloy, Kennemetal, etc. which contain boron carbide. Although the guides have wear-resisting surfaces made of material which is diflicult to shape, the whole assembly is designed for easy threading. They are designed to replace the softer pigtail shaped thread guides in orderA to reduce replacements and at the same time eliminate the possibility of damaging yarn from cut guides or cracked or chipped surfaces.

The thread guide is so shaped that the two prongs form an open mouth making it easy for the yarn, thread or twine to enter the guide. The guide near the ,hole opening is curved, as shown at t2, so that any moving yarn or thread having the slightest tension is necessarily drawn into the center of the two layer guide. After the yarn or threads are in place in the guide it is impossible for any ballooning eiect ofthe moving yarn to cause it to become disengaged from the center of the guide. 'This two layer thread guide can be made in any convenient size, type or shape of stem making it adaptable as a balloon guide for delivery bobbins on up-twisting machines, for take-up bobbins on ring or downtwisting machines, for take-up bobbins on doubling machines, for the lower end of the gate tensions as -used on coning machines, and for the delivery bobbins on the creels of ring or downtwisting, doubling and spinning machines, emulsion troughs of coning machines and cheesing trees on cheesing machines. in many other places of the textile industry.

It is to be understood that the foregoing detailed description is merely given by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is:

1. A thread guide for textile machines, comprising a stem and a thread guiding member attached thereto, said thread guiding member comprising a piece of flat metal folded upon itself to form two layers, each of said layers hav- 'ing a guide opening and an entrance opening leading to said guide opening, the guide openings substantially registering with each other and the Obviously it may be used vprising a stem and a thread guiding member attached thereto, said thread guidingv member comprising a piece of ilat metal folded upon itself to form two layers, each of said layers having a guide opening and an entrance opening leading to said guide opening, the guide openings substantially registering with each other and the entrance openings being at an angle of about 160 to each other.

4. A thread guide for textile machines, comprising a stem and a thread guiding member attached thereto, said thread guiding member comprising a piece of at metal folded upon itself to form two layers, each of said layers having a guide opening having hardened, Wear-resisting edges, and an entrance opening leading to said guide opening, the guide openings substantially registering with each other and the entrance openings being at a substantial angle to each other.

5. A thread guide for textile machines, comprising a stem, a thread guiding member attached thereto, said thread guiding member comprising a piece of flat metal folded upon itself to form two layers, each of said layers having a guide opening and an entrance opening leading to said guide opening, the guide openings substantially registering with eachA other and the entrance openings being at a substantial angle to each other, and a wear-resisting eyelet iixed in each of said guide openings.

6. A thread guide for textile machines, comprising a stem, a thread guiding member attached thereto, said thread guiding member comprising a piece of at metal folded upon itself to form two layers, each of said layers having a guide opening and an entrance opening leading to said guide opening, the guide openings substantially registering with each other and the entrance openings being at a substantial angle to each other, and a wear resisting metal carbide eyelet xed in each of said guide openings.

'7. A thread guide for textile machines, comprising a stem, a thread guiding member attached thereto, said thread guiding member comprising a piece of fiat metal folded upon itself to form two layers, each of said layers having a guide opening and an entrance opening leading to said guide opening, the guide openings substantially registering with each other and the entrance openings being at a substantial angle to each other, and a boron carbide eyelet xed in each of said guide openings.

KINSEY A. woLFE.

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