US2368820A

US2368820A - Attachment for looms

Info

Publication number: US2368820A
Application number: US465340A
Authority: US
Inventors: Forgea Ernest
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-11-12
Filing date: 1942-11-12
Publication date: 1945-02-06
Anticipated expiration: 1962-02-06

Description

E. FORGEA ATTACHMENT FOR LOOMS Feb. 6, 1945.

Filed Nov. 12, 1942 Patented Feb. 6, 1945 l UNITED 'STATES PATENT OFFICE ATTACHMENT Foa LooMs Ernest Forgea, Rensselaer, `N. Y. Application November 12, 194.2, Serial No. 46E-,340 I Y 'z claims. (o1. 139-447) This invention is an vvattachment Vfor "holding K the yarn over the ends'of bobbins. which have been placed in the magazine of an automatic loom.

The type of threading attachment now in general use with automaticlooms consists of'a long arm which juts out from the end of the loom frame, past the magazine for the automatic bobbins. In practice, the yarns fromthe `stacked bobbins are pulled out of the magazine and engaged with a clamp supported at the end of said arm, several feet distant from ther adjacent end ofthe magazine. This arrangement is open to the objection that several feet of the yarn from each bobbin are immediately wasted,A and to the further objection that the incident slack in the yarn makes it necessary for the operator to leave his normal position so as to pull downy the yarns, thereby resulting in a substantial loss of time.

One offthe objects of the present invention iS to provide a threading attachment so constructed and arranged as to reduce lthe amount of Waste yarn which resultsfrom the present daythreading practice, above described. A further object is to provide a simple attachment which will make indexing of the yarns more readily threaded into the self-threading eye of the shuttle. A further object is to provide a device of the character mentioned which will serve to keep the end, of the loom cleaner, and will reduce possibility of `loose ends of 'yarn getting caughtin the loom mechanism. A further object is to provide' a threadthe lower `end of the plate as indicated at F2.

`The structure-thus far described is illustrative of a type whichv is -now in common .use,the yarns j from the respectiver bobbins being extended through the slots F', and extended to and secured to a clamp which is spaced outwardlylfrom the A magazine in-a manner not shown. t

The guide member G of the present invention may be constructed of any desiredmaterial, but for purposes of illustration is constructed of rather heavy stiff wire of vany desired gauge. In practice, #6 (six) gauge has been found quite suitable, but the invention is not to be limited in this respect, As shown in Figures 2 and 3, the guide G comprises two sets of strands I0 which con- 'verge downwardly and are secured together at ing attachment so constructed vas to cause the yarns to automatically. travel downwardly; so that it will not be necessary for the operator to pull down the yarn while operating the loom,

The invention will be hereinafter fully setv forth and particularly pointed out in the claims.

In the accompanying drawing: Y

Figure 1 is aside elevation conventionally il-v lustrating a standard ltype of bobbin magazine with the improved threading attachment secured g to one end thereof. vFigure 2 is an end view of Figure 1. Figure 3 is'a perspective view of the detached threading attachment. Figurefi is a perspective view of a modification. Figure 5 is a front view `of a second modification.

Referring tor Figures 1, 2 and 3'of the drawing, BM designates a typical bobbin magazine `in which the bobbins. B are stacked in a known man ner commonly practiced in the art. In-practice, thebobbin magazine is positioned above the lay of the loom and the shuttle box, and the front plate F thereof is provided with vertically arranged parallel guide slots F, which converge at able with a face of the bobbin magazine.

their lower ends in suitable manner, as by soldering, indicated at II. Arranged'parallel with the strands II) are a corresponding number of sets of outer strands I Z, relatively spaced from the wires I0, and also secured at their lower ends to-the strands IIJ by the securing means Il. The two strands I2 are so arranged withrespect to .the strands I0 as to provide guide spaces I4 to receive the yarns from the bobbins. It will be noted that the upper ends of the strands I2 are free and that they are slightly divergent as indicated at I5. To the upper ends of the respective strands.

I0 are connected lthe arms I6 of a V-shapedf` support member having an eye I1 located atthe point of the V, and so positioned as .to be engage- In practice, the guide member G issecuredv to the' plate Fv by means of a bolt I8 passed through said eye II. It willbeobserved that the strands I2 and. their'di-vergent portions I5 extend across the slotsF of the end plate F, so that the yarns instead of passing downwardly to the bottom of the slots F', will be diverted downwardly into the guide spaces I4. It will also be-observed that the major portions of the wires I0 and I2 are approximately straight, and will be held in depending position by the support member and, approximately parallel with but in spaced'relationship. with respect to said face of the bobbin magazine.. -`The lower portion of the guide mem ber provided by strands .IU and I2 is curvedfrom the vertical pla-ne of saidywireslll and I2, to a position below the wires I6, so as to extend beneath the plate F and. abovethe plane of the lay of thelom,

In practice, the bobbins are placed in the magazine in the usual way and the yarns are threaded through the slots F' into the guide spaces I4, after which they. may be knotted so that 4they cannot be drawn backwardly out of engagement` with the guide when the bobbin is inserted into the shuttle.

In the form illustrated in Figure 4, a guide member is shown which is intended to cooperate with a single slot F' in the bobbin magazine, and embodies a structure which, in effect, correspondsl to one half of the guide member of Figures 2 and l'3. Referring more particularly to Figure 5,` the guideconsists of a single piece of wire bent to` form the guide G', said guide consisting of a strand 10a and a strand I2a curved rearwardly at their lower 'ends and joined to provide a loop` Ila. The strand IUa is provided with an inwardY extension |6a having an eye Ila by means of a flat supporting member |61) of approximately V-shape. The strands l0 extend downwardly and are converged until their lower extremities meet. A plurality of other strands I2b are provided, they being diverged to provide four guide spaces Mb. The 'lower ends of the strands I'b and l2b are united in suitable manner. such for instance as by welding. The guide device of this figure is mounted upon the bobbinguide and cooperates with the latter in substantially the same manner as those illustrated in the other figures.V

The advantages of the invention will be readily understood by those skilled in the art to which it belongs. For instance, by securing theA guide directly to the bobbin magazine, it is necessary to draw the yarns from the bobbin magazine a very short distance, and as a result there will be a decided saving in the amount of yarn which is normally wasted in common practice because of the comparatively great distance of the yarn clamp from the lbottom magazine. Also,. it will be readily seen that inasmuch as the extended portions of the yarns are relatively short, and are so knotted thatthey cannot be drawn out of engagement with the guide, it is not ronly possible to keep the end of the loom clean, but also to reduce the liability of the yarn ends getting caught in the loom mechanism. Another advantage is that due to the vibration of the loom in operation, the yarns engaged with the guide spaces of the threading attachment of the present invention, will be caused to travel downwardly to the lowermost part of said guide spaces, therefore avoiding any necessity for the operator to'pull down the yarns, thereby resulting in a substantial saving of time.

Having thus explained the nature of the yinvention and described an operative manner of constructing and using the same, although without attempting to set forth all of the forms' in which it may be made, or all of the forms of its use, what is claimed is:

l. A yarn guiding attachment for the bobbin magazine of a loom comprising an approximately straight body formed of approximately parallel wire strands united at their lower ends and separated laterally at their upper ends, asupport portion having means at one end to engage a sur.. yface of said bobbin magazine and having its other end connected with the upper end of one of said parallel wires, said holding member being so located that it will support the wire strands in a depending position spaced from said surface of the bobbin magazine and approximately parallel therewith. f

2. A yarn guiding attachment for the bobbin magazine of a loom comprising an approximately straight body formed of approximately parallel wire strands united at their lower ends and separated laterallyat their upper ends, a support portion having means at one end to engage a `surface vof said bobbin magazine and having its lother end connected with the upper end of one Aof said parallel wires, said holding member being straight body formed of a wire strands arrangedin parallel relation and so located that it will support the wire strands in adep'ending position spaced from said surface of the bobbin magazine and approximately parallel therewith, said body having a lower curved portion extended to a position beneath said support portion. L 3'. A yarn guiding attachment for the bobbin magazine of a loom comprising an approximately straight body formed of a plurality of sets of parallel wire strands, the wires of each set being united at their lower ends and separated laterally at their upper ends, a'support member having means for engaging a surface of said bobbin magazine and other means connected with the upperend of one of the parallel wires of each set, said holding member being so located that it will support the sets ofwires in a depending position spaced from said bobbin magazine surface, and vapproximately parallel with the latter.

4. A yarn guiding attachment for the bobbin magazine cfa loom comprising an approximately straight vbody formed of a plurality of sets of parallel wire strands, the wires of each set being united at their lower ends and separated laterally at their upper ends, a support member having means for engaging a surface of said bobbin magazine and othermeans connected with the upper end of one of theparallel wires of each set, said holding member being so located that itwill vsupport the sets of wires in av depending face, and approximately l.parallel with the latter, said body having a curved portion extended to a position beneath said support member.

l5. A yarn guiding attachment for the bobbin magazine of a loom comprising an approximately straightr body formed of a plurality of sets of parallel wire strands, the wires of `each set being united at their lower ends, a V-shaped support member having means located at the point of the V to engage` a face-of the bobbin magazine and having its arms respectively connected with the upper end vof one of the parallel wires of each set, said'holding member being so located that it will support the body in a depending position spaced from said bobbin magazine surface and approximately parallel with the latter. 6. A yarn guiding attachment for the bobbin magazine of a loom comprising an approximately plurality vof pairsV of separatedr at their'upper ends, a common means for securing the lower ends of said strands together, said sets of strands being arranged in relatively v-shaped relation, a support'member having arms each connected with theupper end of one of said parallel wire'strands and having a portion arranged at an angle with respectto said body to engage a surface of the bobbin magazine, said support member being so located that it will hold said body in depending position from position spaced from saidbobbin magazine sur-- strands, and two guide strands parallel with but separated lfrom the rst mentioned respective strands so as to provide yarn-guiding spaces, said guide strands being secured at their lower ends to the first mentioned strands and free at their upper ends.

ERNEST FORGEA;