US1543139A - Thread guide - Google Patents

Description

J. une,23, 1925.

.A. E... WHIPPLE THREAD GUIDE Filed March 19. I923 Patented June 1925.

.UNI'r D STATES PATENT OFFICE.

mos a WHIPPLE, or wnrrr'nsvxnm, massaonusm'rs, Assumes. TO wnrrm monnm wonxs, or WHITINSVILLE, mssacnusm'rs, A CORPORATION or mesa- CHUSETTS.

Taxman GUIDE. I

Application filed March 19, 1923. sermno. 826,010.

To all whom it may concern:

Be it known that I, AMos E. VVHIPPLE, United States citizen, residing in Whitinsville, Massachusetts, have invented the following described Improvements in Thread Guides.

The invention relates to thread guides for wet twisters and like machines, and its object is to provide an improved holder for the non-corrodible or ceramic guide eyes, used in such machinery, which adequately protects the guide eye from injury as by contact with bobbins and which is least likely to catch or snarl the yarn and which is capable of being made at small expense from sheet metal, and which may also be used on various standard types of linger heads or thread board rails.

In the accompanying drawing Fig. 1 represents a partial perspective View of a thread board rail with finger heads having one form of the invention applied to them. Fig. 2 is an enlarged perspective of this form, Fig 3, a top plan thereof, Fig. 4 a longitudinal section of'Fig. 3 on line IV-IV. Fig. 5 is a top plan of another and preferred form of the invention, Fig. 6 a

' bottom plan thereof, Figs. 7 and 8, sections on line VIIVII and VIIIVIII respectively of Fig. 5, and Fig. 9, a longitudinal section of Fig.5.

The guide eye is formed with the usual yarn hole through which the yarn passes and by which it is guided, and also with an oblique entrance slot through which the yarn may be laterally introduced into such hole. ThlS entrance slot may be variously formed but in the case taken for illustration, it is formed by the space between two opposing overlapping and relatively slender horns l, which makes an etficient form of guide eye. It will be understood that when the yarn has been laterally entered into the hole, through the oblique slot between the horns, it is then very surely confined in the hole against accidental escape. Suchguide eyes are commonly made of highly glazed ceramic or other vitreous material like porcelain, andin the process 'of dofling and replacing bobbins, they are apt to be struck'from below as well as from above and, as heretofore mounted, they are very frequently broken,

or dislodged by such contact. According to the preferred form of this invention, such a ceramic guide eye. is shaped so that its smaller cross-sectional dimension is at' its rear end, for example, it is tapered toward the rear and it is also formed with a retaining recess or lockhole, such as indicated at 2, toward its rear end, this recess or hole being adapted to cooperate with a complementary retainin means or look pin in too holder, as later described.

The holder is constituted at its forward end as a box which conforms in a eneral way to the tapered shape of the guide eye and surrounds and protects it on its bottom as well as on its top and sides, but so as to leave the yarn hole and entrance slot exposed and accessible for the introduction and passage of the yarn. That is to say, the box end of the holder is provided with an endwise recess 3 in its top wall and with a corresponding recess 4 in its bottom wall, both deep and wide enought to expose the oblique entrance slot and yarn hole. Said recesses are desirabl shaped or out as to form projections suc as 3 and 4 in each recess as shown in Figs. 5 and 6, respectively Such projections overlie and specially protect the two ,horns and they may obviously be extended further over the horns than shown in the drawings, to provide greater protection than indicated. The walls of the eye box at its rear or smaller end are integrally extended as a shank which may be either flat, channeled, round or other shape, as desired, so as to be adapted to be received in, and adjustably supported by, a finger head. In Figs. 1 to 4 this rearward extension 6 is substantially fiat or channelshaped and also slotted for adjustable attachment to the finger head 5 by the usual bolt, as indicated in Fig. 1. In Figs. 5 to 9' the integral extension 7 of the guide box is round or cylindrical and adapted to be adjustably held in the cross bore of a rotary barrel 8 by a longitudinal set screw 9. The barrel 8 is mounted to rotate in a slotted knuckle 10 mounted on the thread board rail according to familiar design. The round shank 7 enables the guide to be set in or out of the barrel and also turned axially, as will be understood. I

The box-form guide holder, in both forms of the invention, is preferably made from a sheet metal blank of which the forward end is first slotted to form the recesses and horn-protecting projections above referred to and then folded to form the top, bottom and side walls of the box. I11 Figs. 2 to 4 the rearwardly extended top and side Walls of the box part form a channelled shank. In Figs. 5 to 9 the rcarwardly extended top and side walls are rolled or folded to form a round or cylindrical shank and in order to guard against subsequent deformation, by the pressure of the set screw 9, the sheet metal may be rolled around a section of round rod 11 serving as a reenforcing core therefor.

The guide eye may be fastened in the box by various means, but-itis deemed best to pin it therein, for which purpose the top and bottom of the box walls are one or both perforated in registry with the perforation 2 in the rear smaller end of the guide eye. lVhen the supporting box is folded of sheet metal, which as stated is preferred, it is expansible and the insertion therein of the guide eye slightly spreads the walls so that when the retaining pin 12 has been engaged in hole 2, it holds the eye in a position where it is subject to the elastic pressure of the side walls, thus guarding against rattling by vibration. The pin 12, in the case in hand, preferably extends entirely. through the box, terminating flush with the lower wall or projecting slightly beyond it, in which case it is rounded or it may be upset. In any case it can be removed so that the guide eyes when worn may be replaced. It will be apparent that the specific form of the retaining-means is very obviously capable of considerable variation; its essential function of course is to hold the eye against escape from the box, and for this purpose it may be designed in several ways. The in 12 is satisfactory because it is substantlally flush with the box Wall and leaves no opening likely to collect dirt. As a matter of appearance the meeting edges of the folded box walls are located at the bottom ofthe box and the rear end of the box part is tapered and smoothly merged into the round extension shank 7 so that the whole of the exterior surface of the device is thus smooth and devoid of abruptshoulders or projections likely to catch on the yarn. It IS thus also more easily kept clean.

Claims:

1. Thread guide construction for wet twisters, etc., comprising a ceramic guide eye, a supporting box therefor formed of sheet metal protecting said eye on its top, sides and bottom, said box being externally smooth and havingan integral sheet metal extension forming a shank and a finger head provided with means for adjustably receiving and supporting said shank.

2. Thread guide construction for wet twisters, etc., comprising a ceramic guide eye having a yarn hole and an oblique e11- trance slot, a supporting box therefor recessed top and bottom to expose 'said hole and slot but elsewhere. protecting saideye, and an integral extension of said. box forining a shank to be received in a finger head. 7 ,v

3. Thread guide construction for wet twisters, etc., com-prising a ceramic guide eye having an oblique yarn entrance slot formed by overlapping horns, a supporting box therefor recessed top and bottom to form projections protecting saidhorns and an integral shank extension of said box adapted to be received in a finger head. i

4. Thread guide construction for wet twisters, etc., comprising a ceramic guide eye having a retaining means or recess, a metal supporting box for said eye having a retaining member engaging said retaining means on the eye and an extension on the box adapted to be supported in a finger head.

5. Thread guide construction for wet twisters comprising a ceramic guide eye having its least cross-sectional dimension at its rear end, a supporting box therefor shaped to receive said eye, a retaining means for the eye and an integral extension. from the smaller end of said box adapted to be received in a finger head.

6. Thread guide construction for wet twisters etc., comprising a ceramic guide eye perforated to receive a retaining) pin, a perforated sheet metal supporting ox for said eye, a retaining pin occupying the perforations in said box and eye and an integral extension on the box adapted to be su ported in a finger head.

Thread guide construction for wet twisters, etc., comprising a metal supporting box formed with elastically yielding walls,a guide eye adapted to spread said walls when 1 inserted in the box and means for retaining the eye in such wall-spreading position.

8. Thread guide construction for wet twisters, etc., comprising a guide eye and a holder therefor comprising a sheet metal blank folded at its front end to form a box covering and protecting said eye on its bottom and top, the rear of said blank being longitudinally bent or folded to form a shank adapted to be adjustably received in a finger head.

9. Thread guide construction for wet twisters, etc., comprising a guide eye and a holder therefor comprising a sheet metal blank folded at its front end to form a box protecting the bottom of said e e and at its rear end to form a round shan adapted to be adjustably received in a finger head.

10. Thread guide construction for wet twisters, etc., comprising a guide eye and a sheet metal holder therefor having its rear end rolled around a core and forming a supporting shank for said eye.

11. Thread guide construction for wet twisters, etc.,. comprising a guide eye, a supporting box therefor formed of a folded twisters, etc., comprising a ceramic guide eye, a supporting box therefor formed of a folded sheet metal blank surrounding and protecting said eye on its bottom, said box being externally smooth and tapered rearwardly into an integral round sheet metal shank extension adapted to be supported in a finger head.

13. Thread guide construction comprising a tapered guide eye and a holder therefor formed of a sheet metal blank folded to form a tapered box atv its front end and folded at its rear end to form a supporting shank for said eye.

14. Thread guide construction for wet twisters, etc., comprising a ceramic guide eye having its least cross-sectional dimension at its rear end and perforated at such end, a tapered supporting box therefor, having a retaining pin for the perforation and an integral extension from the smaller end of said box adapted to be received in a finger head.

15. A guide embodying a member having a longitudinally extended recess to receive an eye and a notch extended at right angles to the length of said recess and communicating therewith.

16. A guide comprising a member having between the side walls thereof an openended recess to receive removably an eye, and a notch extended entirely through said side walls and intersecting said recess.

17 A guide comprising a member having between the side walls thereof an openended recess and a notch extended entirely through said side walls and intersecting specification.

' AMOS E. WHIPPLE.

said recess, and an eye removably mounted

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