US2325096A - Loom warp feed - Google Patents

Description

July 27, 1943.- G. J. BEAUDREAU Loom WARP FEED 2 Shets-Sheet 1 Filed Sept. 16, 1942 I INVENTOR eoryeelfieaadreaw mm 7 ATTORNEYS y 1943 G. J. BEAUDREAU 7 2,325,096

{ LO'OM WARP FEED Filed Sept. 16, 1942 2 SheetSSheet 2 fig/7119" nted July 2 7 7 v UNITED STATES. PA TENT OFFICE l 1.001333? map 7 MSIZ'SJLZISZ'LT113215... 11 mm. (01. 139-103) the warp through the'loom.

beam for operation of the loom on the fine count yarn in an emcient and satisfactory manner. Many of these looms have now been put into the service of making material for war purposes which utilize a-much heavier count yarn. Consequently because of the increased diameter of the yarn a comparatively short length of this yarn may be provided on the warp beam which requires frequent changing of the warp beam and piecing up of the ends of warp. The frequency required of such piecing up makes the operation of the loom relatively inefficient. The looms are not designedso that larger warp beams may be used.

In weaving it has been usual to wind warp yarn from a creel ball or chain onto a warp beam and then mount the warp beam in the loom and op-' erate the loom until the warp on the beam had run out when these steps are repeated. In some instances attempts have beenmade to run warp yarn directly from the ball or section beam warp reconstructing the loom in a manner so to tension" the ball or section beam warp to control the let oif of yarn therefrom. Changing over of a loom for such purpose is a major operation.

One of the objects of this invention is to provide an arrangement whereby the yarn may be drawn from a ball or chain warp and the usual mechanism -of the loom utilized without making any changes in the loom as to warp yarn tension and so forth.

Another object of this invention is to utilize either one or two of the usual warp beams as a means for frictionally holding the warp yarn and controlling the tension of the warp yarn and the feed of the warp to and through the harnesses of the loom.

Another object of this invention is to provide an arrangement for supporting the ball or chain warp so that it may be mounted on the frame of the loom at any space about the loom where room is present for-the supporting of a ball or chain warp and then leading the yarn to the beam.

Another object of this invention is to provide an arrangement of weaving so that longer lengths of warp yarn may be used in the loom thus requiring less shut down of the loom for replenishing the warp yarn. eliminate small beam warping and reduce twisting labor.

Another object of the invention is to save yarn which is ordinarily wasted at the time of the provision of a fresh warp in the loom.

Another object of the invention is to provide a more continuous length of woven fabric whereby to lower finishing costs. I

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a diagrammatic view illustrating a fragmental-portion of a loom frame and the various parts to the loom which enter into the operation of the present invention;

Fig. 2 is a fragmental face view of the mounting of the ball warp shown in Fig. 1; v

Fig. 3 is a detail elevation illustrating the manner of controlling the warp yarn from the beam;

Fig. 4 is a front view of the showing of Fig. 3;

Fig. 5 is a top plan view of the lever through which the control is provided;

Fig. 6 is an elevation of the pulley which is hung upon the yarn for controlling the operation of the lever of Fig. 5;

Fig. '7 is a side view of two parts which are added to the usual beam to increase its size;

Fig. 8 is a sectional view of the beam with the parts of Fig. '7 added thereto;

Fig. 9 is-an elevation of a ball or chain warp.

Fig. 10 is a view similar to Fig. 1 but illustrating a modification of mounting of the ball warp.

In searching for more eflicient operation of the loom I have provided an arrangement whereby the warp yarns may be taken directly from the ball warp or chain warp by mounting this ball warp at any convenient location and leading the warp yarn about one or two of the usual warp beams so that a sufiicient grip of the warp beam on the yarn may be had and whereby the warp will then be fed into the loom by the same mechanism and in the same manner as if this warp were positioned upon the warp beam, it being desirable to utilize two warp beams in order that the yarn may shift along the warp beam and compensate for variations as it is fed forwardly. By this arrangement a fewer number of warp beams are used and a fewer number of control weights.

With reference to the drawings for more detailed description 10 designates a fragmental portion of the loom frame which supports the sheaves ll over which the straps l2 of the harnesses l3 are arranged, which harnesses are operatedthrough the connectors It at the lower portion thereof. The lay is represented at 16 having a reed I 1 mounted thereon for beating up each pick of the shuttle while the breast beam 6 upwardly for the mounting of the frame 26 which carries the warp beams which are now utilized in pairs 21 and 21', one being arranged above the other in the frame 26. The let-oil. control is entirely eliminated from the upp r warp beam 21' and the let-oil. of the lower beam 21 is alone used. This let-off is of usual construction consisting of a lever 28, see Figs. 3 and 5, which lever is pivoted as at 29 on theframe 26 and has cam-like portions 30 which will press against the flanges 3| of the beam so as to exert a friction on the head against turning of the beam.

The friction i applied by means of a weight" 32 which is suspended by means of hook'33 at tached to the lever at a point spaced from the fulcrum 29 a distance greater than the distance through which the cam portions 30 act. This lever 28- is bifurcated as at 33 to provide' a slot 34 for the guiding of a bight 35 of the warp yarn, see Fig. 3. This bight of the warp yarn extends about a pulley 36 rotatably mounted on a portion 31, see Fig. 6, of an S-shaped member 38 having a hook portion 39 for receiving the desired number of weights 40. The upper portion 4| of the S-shaped member has a flat surface 42 which will abut the arms of the bifurcation so as to firmly engage these arms as the yarn is tensioned sufficiently so as to raise the S-shaped member and the weight into e agement with the lever and then raise the lever to release the beam 21.

The warp beams each consists of a pair of heads having out-turned flanges 3| and a core 43, trunnions 44 extend outwardly beyond each of the heads for mounting. For the purposes of this invention it is desirable although not essential that the core 43 be enlarged and in order that this may be performed I have provided half cylindrica1.members 45 as shown in Big. (which may be of wood and which fit around the core 43 and may be secured in place by screws 46 the reed and into. the fell of the cloth where the filling is beatenup at 62.

In some cases instead of mounting the ball warp 66 horizontally as shown in Fig. 1 or 2 at the front of the loom the ball warp 66' as shown in Fig. 10 may be mounted in back of y back end on the warp beams thus, allowing the warp to be fed with the dropping of the weight 40 and its pulley by pulling the warp from the hall 66 and then dropping of the control lever to again engage the warp beam 21 and retard or stop the feeding of the yarn. Each time this occurs yarn is drawn from theball orchain passing through the heads of the beam. The

45 by securing the members in place so as to provide increased traction. The beam 21' however will be perfectly smooth so as to permit of some slippage of yarn about this beam as distinguished from the beam 21.

In Fig. 1, I have shown a frame work 56 added to the forward part of the loom which consists of spaced upright supports 51 and 52 having bearings 53 extending forwardly therefrom and to receive the shaft 54 which will pass through the core 55 of the ball warp 56 shown in Figs. 1, 2, and 9 from which one or a plurality, as shown at 51, of warp yarns may b led to pass as a group two and a half times about the beam 21' and the beam 21 and thence from the beam 21 through the slot 34, beneath the pulley 36, again through the slot 34 and thence upwardly over the guide 58, see Fig. 1, and downwardly through reed 59 beneath guide bar 60 and then to the eyes 6| of the harnesses and then through warp 56 which requires no separate control or let-01f thus utilizing the already existing tension for the warp present in the loom. I j

I claim: I

1. In anarrow-ware loom, a supporting frame, a, warp controlled rotatable friction beam in said frame, means governed by the warp for controlling the rotation of said beam, a ball warp mounting supported on said frame of the loom,

a ball warp in said mounting having warp yarns leading about said friction beam and through said controlling means and thence to and through the harnesses of the loom.

2. In a narrow-ware loom, a supporting frame, a pair of warp controlled rotatable friction beams in said frame, means governed bythe warp for controlling the rotation of one of said beams, a ball warp mounting supported on said frame of the loom, a ball warp in said mounting having warp yarns leading about said pair of friction beams and through said controlling means and thence to and through the harnesses-of the loom. 3. In a narrow-ware loom having a frame for supporting a plurality of warp-beams, a plurality of warp beams in said frame, means for controlling the tension of the warp and the rotation of said warp beams, means for rotatably mounting a plurality of warp supply packages at a location at least partly within the confines of the loom structure, supply packages of warp on said mounting means, and means for guiding the warp from each individual package to and about an individual war'p beam and thence to engage the warp tension means and to extend therefrom to the fell of the fabric, said warp being wrapped about said warp beams to obtain sufficient friction therewith for controlling the warp.

4. In a narrow-ware loom having a frame for supporting a plurality of warp beams, a plurality of warp beams in said frame, means for controlling the tension of the warp and the rotation of said warp beams, means for rotatably mounting a plurality of warp supply packages at a location asaaoac beams to obtain suflicient friction therewith for controlling the warp.

5. In a narrow-ware loom having a frame for supporting a plurality of warp beams, a plurality of warp beams in said frame, means for controlling the tension of the warp and the rotation of said warp beams, a plurality" of packages each formed of a rope or chain of warps suflicient in number to supply the full width work piece formed and each rotatably mounted, and means. for guiding the warps from each individual package to and about an individual warp beam and thence to engage the warp tension means and to extend therefrom to the fell of the fabric, said warps being wrapped about said warp beams sumciently to obtain friction therewith for controlling the warps.

6. In a narrow-ware loom having a frame for supporting a plurality of warp beams, a plurality of warp beams in said frame, means for controlling the tension of the warp and the rotation of said warp beams, a plurality of packages each formed of a rope or chain of warps suflicient in number to supply the full width work piece formed and each rotatably mounted with the longitudinal axes thereof extending substantially in a vertical plane, and means for guiding the warps from each individual package to and about an individual warp beam and thence to engage the warp tension means and to extend therefrom to the fell of the fabric, said warps being wrapped about said warp beams sufficiently to obtain friction therewith for controlling the warps. i

7. In a narrow-ware loom having a frame for supporting a plurality of warp beams, a plurality of warp beams in said frame, means for controlling the tension of the warp and the rotation of said warp beams, a plurality of packages each formed of a rope or .chain of warps suficient in number to supply the full width work piece formed and each rotatably mounted with the longitudinal axes thereof extending substantially in a vertical plane and at a location to be positioned at least partly within the confines of the loom structure, and means for guiding the warps from each individual package to and about an individual warp beam and thence to engage the warp tension means and to extend therefrom to the fell of the fabric, said warps being wrapped about said warp beams sufliciently to obtain fric tion therewith for controlling the warps. 8. In a narrow-ware loom arranged for weaving a plurality of individual fabric pieces each having an individual warp section, said loom having loom harnesses, a feed, a frame for supporting a plurality of warp beams, warp beams mounted for rotation in said frame one for each warp section, individual warp tensioning means for controlling the rotation of said warp beams one for each warp section, a support, means on said support for rotatably mounting a plurality of warp, supply packages each having substantially greater length of warps thereon than the-- holding capacity of said warp beams and with the warps of each package forming the entire width of warps of the individual piece, said warps extending from its supply package to and wrapped about one of said warp beams and thence extending therefrom to and through the loom harnesses and reed, each warp section being provided with one of said warp tensioning means and each warp being wrapped sufficiently about its warp beams to obtain friction therewith for the control of said war-p.

9. The method of supplying warp to a narrow fabric loom having a controlled warp beam which consists in forming a, package of a rope or chain of bunched threads with a suflicient number of threads in the rope or chain to provide the warp necessary for the full width of the individual work piece formed, rotatably supporting said package in a loom, leading'said chain about the controlled warp beam to obtain the desired friction for control of the sameand then through the tension control and through the loom harness.

10. The method of supplying warp to a narrow fabric loom having a controlled warp beam which consists in forming a package of a rope or chain of bunched threads with a sufllcient'number of threads in the rope or chain to provide the warp necessary for the full width of the individual work piece formed, rotatably supporting said package in close adjacency to a loom upon a vertical axis, leading said chain about the controlled warp beam to obtain the desired friction for control of the same and then through the tension control and through the loom harness,

11. The method of supplying warp to a narrow fabric loom having a controlled warp beam which consists in .forming a package of a rope or chain of bunched threads with a sufficient number of threads in the rope or chain to provide the warp. necessary for the full width of the individual work piece formed,- rotatably supporting said a package within the vertical limits of the floor space occupied by the loom, leading said chain about the controlled warp beam to obtain the desired friction for control of the same and then through the tension control and through the GEORGE J. BEAUDREAU.

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