US2037381A - Heddle frame - Google Patents

Description

r M i936- J. .JfKAUFMANN n 2%?31 HEDDLE FRAME Filed Dec. 19, 1935 2 Sheets-Sheet 1 L@ i Eli/12 6 WF@ mi M, 1936;.v

J. J. KAUFMANN HEDDLE FRAME Filed Deo. 19, 1933 2 sheets-sheet 2 Patented Apr. 14, 1936 UNITED STATES PATENT GFFICE HEDDLE FRAME Application December 19, 1933, Serial No. 703,064 17 Claims. (Cl. 139-92) My invention relates to heddle frames for looms, and relates more particularly to a novel construction and arrangement of such heddle frames.

The principal object `of the present invention is to provide a heddle frame which is particularly adaptable for Weaving heavy materials such as canvas and the like, but which, if desired, may be used for other kinds of weaving.

A further object of my invention is to provide a heddle frame which Will be relatively light, yet substantial and durable in its construction.

A further object of my invention is to provide improved means for supporting the heddle barsl in the frame in such manner that they will be securely held in the proper positions when the frame is in use, yet may be readily and expeditiously removed from the frame should occasion require.

A further object of my invention is to provide improved means for bracing and spacing the top and bottom rails of the frame intermediate their ends, so that the heddle supporting bars will at all times be maintained in proper parallelism, to the end that the heddles will be freely movable and will not bind thereon.

A further object of my invention is to provide in a heddle frame improved and simpliiied, yet durable and efcient, means for attaching the actuating straps to the frame.

Thenature and characteristic features of my invention Will be more readily understood from the following description, taken in connection with the accompanying drawings forming part hereof, in which:

Figure 1 is a front elevation of a heddle frame embodying the main featulres of my present invention;

Fig. 2 is a vertical section thereof, enlarged, taken approximately on the line 2-2 of Fig. l;

Fig. 3 is a vertical section thereof, enlarged, taken approximately on the line 3--3 of Fig. 1;

Fig. 4 is a perspective view, enlarged, of a bracket for mounting the heddle bars in the frame, thisv Ybracket being of the type of those which are mounted on the top and bottom rails adjacent the end struts of the frame.

Fig. 5 isa similar perspective View, enlarged' of another form of bracket, of the type of those which are mounted on the top and bottom rails intermediate the ends thereof, these brackets being vadapted to have a brace or spacing device used in connection therewith;

Fig. 6 is a horizontal section, enlarged, taken approximately on the line 6 6 of Fig. 1;

Fig. '7 is a horizontal section, enlarged, taken approximately on ythe line 'I-y-l of Fig. l; and

Fig. 8 is a vertical section, enlarged, taken approximately on the `line 8--8 of Fig. 1.

It will, of course, be understood that the description and drawings herein contained are i1- lustrative merely, and that various changes and modifications may be -made in the structure disclosed without departing from the spirit of my invention.

Referring to the drawings, in the particular embodiment of my invention therein shown, the frame proper comprises horizontal top and bottom rails It, connected at their ends by vertical side struts. II. The top and bottom rails I0 are preferably made of wood, which may be of uniform cross-section throughout its length. The side struts II are also preferably made of wood, which also may be of uniform cross-section throughout its length. The top and bottom rails may be united to the side struts at the corners by mortise and tenon joints.

Each of the top and bottom rails I0 is preferably of a T-shaped cross-section, thereby providing therein a. web portion IZ and a flange portion I3.

l'The web portion I2 is of such thickness that certain of the parts, which will be hereinafter referred to, may readily extend through the top and bottom rails Without materially weakening the structure, and this thickened web portion also permits certain of the parts to be readily attached thereto by mea-ns of wood screws, or the like.

Each of the top and bottom rails is provided with U-bolts I Il, the leg portions of which eX- tend therethrough and have retaining nuts I5 on their inner ends bearing in each instance against the inner face of the web portion I2 o f the rail. The U-bolts I4 providemeans for attaching 'the actuating straps (not shown) to the frame.

The heddles It may be of any preferred'construction, each having the usual central warp eye I1I, and mortises I8 at its ends for mounting the heddle upon vthe supporting bars I9. The heddles It are preferably provided in two sets, and the supporting bars I9 therefor are positioned on each side of the web portion I2 of the top or bottom rail, as the case may be, upon which the bar is supported.

At each end of each rail there is provided .a bracket member 20, bolted or otherwise secured to the inner face of the web portion I2 of the rail Ill. This bracket member 2U serves to support, on Veach side of the web portion of the rail, a member 2 I, one end of which is positioned in a recess in the bracket member 29, and secured therein by means of an integral rivet shank 22 extending through an aperture 23 in said bracket Eil. The bracket member 20, and certain of its associated parts, are shown in detached perspective in Fig. 4 of the drawings.

-Each of the members 2l which extends from a bracket member 20 along the face of the web portion IZ is provided with a recess 24, in which the heddle supporting bar I9 is positioned. A latch 25 is pivotally secured by means of a screw 26 to the free end of the recessed member 2|, the other end of the latch 25 normally extending into a recess 21 provided between one surface of the member 2l and the overhanging lip 28 of the bracket member 29. The latch 25 is also provided with a slot 29 for engagement by a suitable tool, whereby said latch 25 may be turned to the open or to the locking position as desired. (See Fig. 5.)

g A similar bracket member 30 is bolted to the inner face of each of the top and bottom rails I0, intermediate the ends thereof. This bracket member 39 and certain of its associated parts are shown in detached perspective in Fig, 5 of the drawings. The construction and arrangement of the bracket member 30 are substantially the same as those of the bracket member 20, and likewise said bracket member 3l! carries members 2 I, which extend along the side faces of the web portions of the top and bottom rails, for the support of the heddle bars intermediate their ends. Likewise, each of the recessed members 2| carried by the bracket 3D is provided with a latch 25 for retaining the heddle supporting bar within the recess 24.

Each of the bracket members 30 is also pro-` vided with a central, vertically extending aperture 3|. A tie bolt 32 extends through the top and bottom rails, passing through the apertures of the bracket members 30. The tie bolt 32 is provided on one end with a headed portion 33 and on the other end with a threaded portion 34, which is screwed into a plate 35 mounted on the bottom face of the flange portion I3 of the lower rail. A tube 36 is mounted on the tie bolt 32, having aring end portions which bear against the bracket members 39. The tube 36 is of a proper length to suitably space the top and bottom rails, this spacing being maintained constant by the tension of the tie bolt 32. The tie bolt and tube arrangement not only serves to space the top and bottom rails, but also acts as an effectual brace of the frame intermediate its ends.

The heddle supporting bars I9 are of such length as to terminate at the inner surfaces of the side struts II of the frame, abutting against the same and thereby being ixedly positioned against longitudinal movement within the recessed members 2I by means of which they are supported in the frame.

It will be noted that the heddles on either side of the frame may be readily removed therefrom in a group when desired, by turning the latch members 25 by means of a suitable tool, such as a screw driver or the like, inserted in the slot 29. The heddle supporting bars may then be readily removed from the recesses in the members 2I in which they are normally positioned, without any necessity of sliding the same longitudinally to release them from the frame.

The use of the T-shaped top and bottom rails, with the heddle supporting bars positioned on each side of the web portions thereof, permits the largest possible opening of the shed Without unduly increasing the overall height of the frame.

The top and bottom rails, being made of wood, provide a certain desired characteristic of flexibility, and at the same time the requisite degree of strength. The relatively thick web portions I2, provided in said rails, permit the leg portions of the U-bolts I4, and also the tie bolt 32, to eX- tend entirely therethrough, and this without materially weakening the structure.

The top and bottom rails, as well as the side struts, being of uniform cross-section throughout their respective lengths, may be economically made by suitable woodworking machinery.

A heddle frame constructed as aforesaid will be found to be exceedingly useful for weaving heavy fabrics, although it will be understood that many of the features thereof may be utilized to advantage in heddle frames which are adapted for weaving finer fabrics.

I claim:

1. Ina heddle frame having top and bottom rails, means for bracing and spacing said top and bottom rails intermediate their ends comprising a tie bolt extending through said top and bottom rails, and a tube surrounding the central portion of the tie bolt and interposed between the rails.

2. In a heddle frame having top and bottom rails, means for bracing and spacing said top and bottom rails intermediate their ends comprising a tie bolt extending through said top and bottom rails, members mounted on the inner faces of the top and botom rails, and a tube surrounding the central portion of the tie bolt and having its ends bearing against the members which are mounted on the inner faces of the rails.

3. In a heddle frame having top and bottom rails, means fo-r bracing and spacing said top` and bottom rails intermediate their ends comprising a tie bolt extending through said top and bottom rails, members mounted on the inner faces of the top and bottom rails, and a tube surrounding the central portion of the tie bolt and having its ends flared and bearing against the members which are mounted on the inner faces of the rails.

4. In a heddle frame having top and bottom rails, means for bracing and spacing said top and bottom rails intermediate their .ends comprising a tie bolt extending through said top and bottom rails, said tie bolt having a threaded portion at one end, a member mounted on the outer face of one of said rails into which the threaded end of the bolt is screwed', members mounted on the inner faces of the topy and bottom rails, and a tube l surrounding the central portion of the tie bolt and having its ends flared and bearing against the members which are mounted on the inner faces of the rails.

5. In a heddle frame having top and bottom rails, means for bracing and spacing said top and bottom rails intermediate their ends comprising a tie bolt extending through said top and bottom rails, said tie bolt having a headed portion at one end and a threaded portion at the other end, a member mounted on the outer face of one of said rails into which the threaded end of the bolt is screwed, members mounted on the inner faces of the top and bottom rails, and a tube surrounding the central portion of the tie bolt and having its ends ared and bearing against the members which are mounted on the inner faces of the rails.

6. In a heddle frame having top and bottom rails, means for bracing and spacing said top and bottomy rails intermediate their ends comprising a tie bolt extendingY through said top and bottom rails, said tie bolt having a threaded portion `at one end, a member mounted on the outer face ofone of said rails into which the threaded end of the bolt is screwed, and a tube surround-l ing thecentral portion of the tie bolt and interposed between the rails.

7. In a heddle frame having top and bottom rails, means for bracing and spacing said top and bottom rails intermediate their ends comprising a tie bolt extending through said top and bottom rails, said tie bolt having a headed portion at one end and a threaded portion at the other end, a member mounted on the outer face of one of said rails into which the threaded end of the bolt is screwed, and a tube surrounding the central portion of the tie bolt and interposed between the rails.

8. In a heddle frame having top and bottom rails of T-shaped cross-section, and having heddle supporting bars positioned on each side of the web portion of each of the top and bottom rails, the means for supporting the heddle bars comprising members extending adjacent the side faces of the web portions o-f the rails, said heddle bar supporting members being recessed to receive the heddle bars, and a retaining latch carried by each of said members, said latches normally retaining th-e heddle bars in the recesses but being adapted to be moved to an open position to permit said heddle bars to be removed from said supporting members.

9. In a heddle frame having top and bottom rails of T-shaped cross-section, and having heddle supporting bars positioned on each side of the web portion of each of the top and bottom rails, the means for supporting the heddle bars comprising members extending adjacent the side faces of the web portions of the rails, said heddle bar supporting members being recessed to receive the heddle bars, and a retaining latch pivotally connected to each of said members, said latches normally retaining the heddle bars in the recesses but being adapted to be swung to an open position to permit said heddle bars to be removed from said supporting members.

10. In a heddle frame having topand bottom rails of T-shaped cross-section, and having heddle supporting bars positioned on each side of the web portion of each of the topand bottom rails, the means for supporting the heddle bars comprising bracket members mounted on the inner faces of said web portions of said top and bottom rails, heddle bar supporting members carried by said bracket members and extending adjacent theside faces of the web portions of the rails, said heddle bar vsupporting lmembers being recessed to receive the heddle bars, and a retaining latch carried by each of said members, said latches normally retaining the heddle bars in the recesses but being adapted to be moved to an open position to permit said heddle bars to be removed from said supporting members.

11. In a heddle frame having top and bottom rails of T-shaped cross-section, and having heddle supporting bars positioned on each side of the Web portion of each of the top and bottom rails, the means for supporting the heddle bars comprising bracket members mounted on the inner faces of said web portions of said top and bottom rails, heddle bar supporting members carried by said bracket members and extending adjacent the side faces of the web portions. of the rails, said heddle bar supporting members being recessedv to receive the heddle bars, and a retaining latch pivotally connected to each of said members, said. latches normally*I retaining the heddle bars in the recesses but being adapted to be swung to an open position to permit said heddle bars to be removed from said supporting members.

12. In a heddle frame comprising top and bottom rails of T-shaped cross-section and side struts secured to the ends of said top and, bottom rails, the side struts being of the same width as the flange portion of each of the top and bottom rails, heddle supporting bars, and recessed members for supporting the heddle bars on each side of the Web portion of each of the top` and bottom rails, said heddle supporting bars terminating at the inner faces of the side struts of the frame and having their ends abutting against the same.

13. In a heddle frame comprising top and bottom rails of T-shaped cross-section and side struts secured to the ends of said topand bottom rails, the side struts being of the same width as the flange portion of each of the top and bottom rails, and heddle supporting bars positioned on each side of the Web portion of each of the top and bottom rails, said heddle supporting bars terminating at the inner faces of the side struts of the frame and having their ends abutting against the same.

14. In a heddle frame comprising top and bottom rails of T-shaped cross-section and side struts secured to the ends of said top and bottom rails, the side struts being of the same width as the flange portion of each of the top and bottom rails, heddle supporting bars, means for supporting the same on each side of the web portion of each of the top and bottom rails, said heddle supporting bars terminating at the inner faces of the side struts of the frame and abutting against the same, and retaining means for holding the heddle bars in the supporting means, ysaid retaining means being movable to positions to permit the heddle bars to be freely removed from the supporting means.

l5. In a heddle frame comprising top and bottom rails of T-shaped cross-section and side struts secured to the ends of said top and bottom rails, the side struts being of the same width as the flange portion of each of the top and bottom rails, heddle supporting bars, recessed members for supporting the same on each side of the web portion of each of the top and bottom rails, said heddle supporting bars terminating at the inner faces of the side struts of the frame and abutting against the same, and latches for holding the heddle bars in the recessed members, said latches being movable to positions to permit the heddle bars to be freely removed from the recessed members.

16. In combination with a heddle frame having top and bottom rails and heddle supporting bars, a heddle bar support, said support including a member recessed toreceive a heddle bar, and a pivotally mounted heddle bar retaining latch, said latch normally retaining the heddle bar in the recess but being adapted to be swung to an open position to permit said heddle bar to' be removed from the recessed member, said recessed member being provided with a groove for the reception of an end portion of said latch.

17. In combination with a heddle frame having top and bottom rails and heddle supporting bars, a heddle bar support, said support including a member recessed to receive a heddle bar, said recess opening toward one of the flat faces of the heddle frame, a heddle bar retaining latch pivot-` ally mounted at one end, the axis of said pivotal mounting being transverse to the fiat faces of the be swung inl a plane parallel to the flat faces of the frame to an open position to permit said.

heddle bar to be removed from the recessed member, said recessed member being provided with a groove for the reception of the free end portion 5 of said latch.

JOHN JACOB KAUFMANN.

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