US2468870A - Means for manufacture of rug braids - Google Patents

Description

May 3, 1949. s, ESK'OW 2,468,870

MEANS FOR MANUFACTURE RUG BRAIDS Filed July 19, 1946 2 Sheets-Sheet l F Q INVENToR.

SEYMOUR ESKQW BY W [,ATToRNE May 3, 1949. s. EsKow MEANS FOR MANUFACTURE OF RUG BRAIDS v L 2 Sheets-Sheet 2 vFiled July 19, 194e INVENTOR.

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SEYM @OW EVTORNEY Patented May 3, 1949 UNITED sTATEs rATENT OFFICE 2,468,870 MEANS FOR MANUFACTURE 0F RUG BRAIDS Seymour Eskow, Taunton, Mass. Application July 19, 1946, Serial No. .684,699

Claims.

The present invention relates to a method and means of manufacture of a cord having a filler which is commonly used in braided or knitted tubular covered core rugs. The invention more particularly relates to the manufacture of a socalled cable or cord in which a core ller is covered with a sleeve. The present invention is particularly adaptable for use with a soft filler of low tensile strength, such as scrap wool or nbre, cotton, wool, or other waste. Fillers of this type used in the prior art are comparatively weak and break readily as they are fed into the machine, so that machines must be constantly stopped to replace or insert the fillers. This not only hampers efficient manufacturing operations, but also is responsible for an inferior product, since the broken filler is not as strong or as uniform as a continuous ller, and since the ller itself is not strong, the cord is loose and yielding and has little restoring force. As a result, the rug made from the cord having a soft ller fiattens out, becomes hard, takes up the dust and dirt and wears through quickly. By concentrating the material comprising the iller as is done in the present invention, it is possible to give the rug resilience and further to use a knittedcover, since the restoring force is inherent in the filler and tends to restore the roundness of the cord even with a knitted cover.

A further advantage in the present invention is that a loose filler may be used and fed in the usual manner to the machine of the present invention whereupon the filler is twisted and further formed and reduced in size to take a knitted cover, which the iiller lls out after it is away from the effect or the twisting tube. By twisting the ller in the manufacture of the cord, the filler becomes more uniform, resilient, and stronger, and thereby produces an improved cord for use in rugr construction.

' Other and further advantages derived from my invention will be more readily understood from the specifications annexed hereto, when taken in connection with the drawings illustrating an embodiment of my invention, in which Fig. 1 is an elevational View of the invention; Fig. 2 is a section taken on the line 2-2 of Fig, 1; Fig. 3 is a sectional View of line 3-'-3 of Fig. l. Fig. 4 shows a lrug made of a cord made in accordance with the present invention and Fig. 5 is an enlarged detailed view of a small portion of a cord.

In the arrangement indicated in the gures, the details of the knitting machine are not shown, since this is a standard machine commonly known in the art, such, for instance, as the machine shown in the patent of W. Larkin, No. 2,032,993, or in the patent of Meiwald, No, 1,814,324. In the construction shown in the present application, any well known tubular knitting machine may be used, that, for instance, as illustrated by I (Fig. l) wherein the yarn spools and frame for feeding the yarn to the needles is rotated by some driving means about its axis. In the Larkin patent mentioned, the needles are mounted in grooves of a stationary needle cylinder and are moved parallel to the aXis of the cylinder by a cam cylinder which is fixedly connected to a hub carrying the arms on which the yarn spools are mounted. A similar construction can be used here. In the drawings (Fig. 1) the drive, which is not shown, drives a bevelled gear 2, which rotates the head I and with it the projecting posts 3 and i mounted on the head. These projecting posts are provided with reduced heads 5 and B, tting into perforations in the plate 1, which is held to the posts by means of set screws B and 9. The plate 1 supports a number of upright rods I0 and II,which are retained in sleeves or collars, I2 and I3 respectively, formed in the plate 1, through the sides of which are threaded set screws I4 and I5 for adjusting and holding the rods I0 and II. The bars Ill and II support at their upper ends a plate I6 which is provided with an annular cover I1, through which the hollow tube IB extends. The hollow tube I8 projects upward beyond the plate IB and rests by means of a flange I9 for free rotation by means of the bracket I9, which is adjustably held by the threaded bar 20 between clamping nuts 2| and 22. The bracket I9 has a hole providing a sliding t through which the tube I8 extends. The threaded bar 20 projects from a supporting bracket 23, which is supported in any desired fashion, as on the Wall or by the machine. The lower end of the shaft of the tube I8 has tted about it a clamping band 24, held to the tube by means of the clamping bolt 25 passing through outwardly extending arms of the band 24, by means of which the band is drawn tightly about the tube It. The tube I8 may be held in a raised position by the bracket I9 or it may be lowered to permit it to be locked to the plate 1 by means of a projecting stud 26, projecting from the plate and engaging the outwardly extending arm of the clamping band 2li. The lower end of the tube I8 projects through the bottom of the plate 1 and is formed with a reduced neck portion 27 which may be integral with the tube I8 or be removably attached to it, so that various sized neck portions may be used.

Mounted on the plate 'I are two spindles 28 and Z9, on which the spools of yarn or thread are retained',1 fory knitting the cover around the filler. rhesefyarns, as'indicated in Fig. 1. by the threads 30 and SI, pass upward from the spools through the eyelets 32 and 33 over the top of the plate I 6 and downward through the eyelets 34 and 35, to and through the eyelets 35 and 3'I (see Fig. 3) to eyelet holder 38 positioned on: the post 39 projecting from the knitting head I.

From this eyelet head, the yarngoes't'othe needles'I 40 positioned in a circle about the iiller li If',l whiclr in operation normally comes out at the neck 21.

In.the operation of the device, the frame carrying the4 spooland other mechanism, which-will. be. called the knitting head I is rotated about the yarn. or core being` extruded from the tube I8, knitting, in its rotation a cover about the yarn or core.. This` rotation of the knitting head1 car-ries with` it, by virtue of the connecting bars 3Y and t, the.- frame assembly 'I and the upright rodsI. and II. and theplate I6. When the tube Ilockswith-the. plate 'I by virtue of the clamping. collar 24` and stud. 25, the tube I8 also rotates.-

withthe headas'asingle unit. The filler, which. leaves the collar 2&7.A has asmaller diameter, at. 4 I, than. the, filler asit. enters the tube IB at 4I. Thealarger. diameter filler QI is fed from. al suitable holder positioned at some. remote point which may-betwoiormore feet iromthe entrance` into; the tube4 I8. The filler enters the tube. I 8 inf a relatively untwisted state but due. to the highfrotational velocity. of the knitting head and frame whichrotates the tube I8, the core becomes twistedlasindicated in Fig. 2,. gradually tapering toi the. smaller diameterat the exit collar or sleeve ZTI.b The nllerv M' is approximately thev sizefot the internal diameter ofthe tube I8 as it entersthe tube;` so. that there is some tendency for-the yarntobev rotated at the top of the tube, but ,fory the. most partthe twist is provided by the collar. 21, so that there is a. somewhat increased twisting.` effect.. from. the top of. the tube to4 the bottom.

. 'Dhesleeve or cover. is knittedabout the yarn so` that while the filler. is. thoroughly twisted and. thereby compressed, the knitted cover pro.- v-idesextensibility. so that. thetube as nishedis readily filled out by the ller. nugcompara-tively resilientyet soft to treadv upon,

but insuresretention o. its original shape and.

thickness.. Arug.` constructed in accordance with theA present. invention is indicated in Fig. 4

where.. the cord 59; is arranged'. in a helical fashion with stitching I on. both faces. of the cord forming a-.solid.rug.

. The: cord,A 5U is of the type. produced by the methodand apparatus previously described' andY itsmore detailed form is indicated in Fig. 5, in whichl isI shown the. twisted filler' 52 and the knitted. cover` 5.3. The. form of. rug made in accordance..with the present invention is', of course,` optional as. to shape. and size. It is; however, essential that the cover be knitted andthe filler This makes the.,

be twisted from a soft, loose-formed ller to a tightly compressed twisted filler, about which a knitted sheath is formed to the size of the compressed twisted flller. It will be noted in the drawing that no take up is shown for the core. The take up is effected by the contact of the knitted cover with the core which advances the core through the tube.

It may be noted that twists may be so-called false twists or actual twisting. Actual twisting will be produced by the simultaneous rotation of the cover and core and this is, to a great extent, preferred. A false twist which compressesthefcore to the proper size to I'lt within the knitted cover may, however, befused' particularly where the core remains in place because of its tautness or because of its stitching.

Having now described my invention, I claim:

1'. Means for manufacturing a, cord having a-.k-nitted'cover and a soft yarn ller, comprising in combination a circular knitting machine haviiig a knittingl mechanism, including a rotating trama-,by which the cover is made, said rotating frame including a tubeethrough which the yarn iiller is drawn, the tube having itsaxis concentric with that oi" the rotating frame and with one end thereof adjacent thereto, said tube having an internal diameterofthe size such that the. yarn contacts said end and twists therewith as the tube isrotated, and means connecting the tube with the rotatingl frame' for rotatingV them together.

2'..A` means' as set' forth: in claim 1 in which the cylindrical.` tube is'detachably` mounted from the remainder of the rotatable frame.

3. Means for manufacturing a cord having a knitted coverwith a soft yarn ller, comprising an elongated"v cylindrical tube` for receiving the" anismfor aligningfthe-aX-i's-of the cylindrical tubewith that oi'the rotatablel knitting mechanism'.

including a rotatable frame supporting saidcylind'rical tube from said rotatable knitting mechanism, and'` means detachably'mounting said cylinr drical tube from the remainder of saidrotatable frame;

4f. Means: formanufacturing a cord having a knitted: cover. with' a soft. yarn filler', comprising; al rotatable knitting mechanism having upwardly' extending supporting rods; a. plate supported.

thereby; androtatable with the.- knitting mechanism; ai plurality' of' yarn spools' mountedbn-said' supporting plate;A an elongated cylindrical tubehaving a smaller outlet'l than inlet, means sup portingF andz' positioning said: tube withits-s axis`- off the rotatable knitting.

coinciding with. that mechanism; means detachably.l mounting: said.: tube from saidzplatef whereby rotation.. of-l the. knitting, mechanismwill. rotate. said., tube.

5.. Means for manufacturing` acord having4 a. knitted cover with a softyarn ller, compris.- ingatubular. knitting machine having a rotatable knitting.. mechanisma plate. supported for ifo-- tation with the knitting, mechanism having, a` plurality ofL spools mounted thereon, a frame xedly carried by said platev through. which the.

yarn is' threaded to said rotatable knitting mech'- anismfrom. said.spools, a cylindrical tube' having, its axis'. aligned with that. of the rotatable knitting mechanism, saidknitting'mechanism being positioned' syrninetrically'y said;r frame; an'

5 external supporting arm having a bracket extending and freely supporting said cylindrical tube, and means detachably mounting said cylindrical tube from said plate whereby the rotatable knitting mechanism and tube will be turned simultaneously.

SEYMOUR ESKOW.

REFERENCES CITED The following references are of record in the 10 file of this patent:

UNITED STATES PATENTS Name Number Date Sykes Nov. 22, 1904 15 Number Number

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