US1355320A - Twisle - Google Patents

Description

EL]. ENTWISLE.

MANUFACTURE OF COIR YARN MATTING AND IN LO'OMS THEREFOR.

APPLICATION FILED APR-13, 1920.

f1 $5= 55, 32@., Patented 0ct.12, 1920.'

3 SHEETS-SHEET 1.

E. J. ENTWISLE.

. MANUFACTURE OF com YARN MATTING AND IN LOOMS THEREFOR.

APPLICATION FILED APR.13. I920.

Patented Oct. 12, 1920.

s SHEETS-SHEET 2.

E. J. ENTWISLE.

MANUFACTURE OF COIR YARN MATTING AND IN LOOMS THEREFOR.

APPLICATION FILED APR.I3,1920.

1 555,320 Patented Oct. 12, 1920s 3 SHEETSSHEE'I 3.

STA'lhd OFFICE,"

ERNEST JAMES ENT'WISIZE, OF MORECAIVIBE, ENGLAND.

MANUFACTURE OF {KER-YARN MATTING AND IN LOOMS THEREFOR.

nssasao.

Application filed April 12;,

threads per foot in the width of matting,

than when weaving the more common qualiti'es.

'l he warp threads being coarse and uneven, the surface of same being very rough, and the warp threads being also very close together, the crossing of the warp threads at the fell of the fabric is not clean and sharp at the apex of the fell, and consequently the fell of the fabric from one selvage to the other, instead of being in a straight line, is irregular, due to unequal degrees of frictional contact between individual warp threads along the width of the fell.

In the best quality of weaving, the fell of the fabric should be straight from selvage to selvage, and in oder to accomplish this a rod is inserted through the warp shed by \manual operation simultaneously with the the usual manner by means of a crank and connecting rods, and the reed consequently has a uniform distance of motion in both directions; a shuttle of ordinary construction carries the we t through the Warp shed in the usual manner. In operating such a known machine the operator stands near one salvage side of the loom, and as the shuttle is passing through the open warp shed the Specification of Letters Patent. Patented O t 12 1920 152a. Serial 110 373,642.

operator passes the rod therethrough siinultaneously with the passing of the shuttle. The loom being driven by power, the operator releases the driving mechanisnnsayby shifting the driving belt from the fast to the loose pulley, and the reed'by the mo Inentum of the machine, is brought against the rod,,presses the latterinto the fell of the fabric-and the forwardmotion of the reed and slay are stopped, before the said reed and slay reaches the most forward position, such as when beating up the weft only.

The reed and slay then rebound offthe rod and it may be with some assistance from the operator, and upon the rebound of the reed, the operator withdraws the rod from the warp shed, after which the loom is restarted to beat up theweft, the loom continulng in motion until the next crossin f the shuttle takes place when the cycle of manual operations and power motions are repeated. Such operations taking place at every crossing of the shuttle, require considerahle skill and attention on the part of the operator and is a laborious process.

Now according to the present invention I construct and utilize a rod for the double purpose of inserting the weftthrough the warp shed of the loom and for the purpose of opening the said warp shed sharply in a straight line and at a wide angle at the fell of the fabric from selvage to selvage.

in carrying out the present invention the weft thread is carried by the forward end of a fell opening rod, so that it can be drawn off a spoollocated'near one end of the loom, and for this purpose the rod may be constructed tubular so that the weft can be threaded through the rod and pass out at the forward end of the said rod, through an eye, to the exterior and so to the fabric.

In order to avoid the necessity, as hither to, of stoppingand causing a reversal of the loom parts, the rod to open the fell sharply and in astraight line (which fell opening rod also carries the weft) is slidablysupported in suitable guides, such as by a. slotted plate or by parallel rods, the forward end of the fell openingrod pass- 1 ing through a hole in a bearing bracket, and

The reed is operated in carrying out this invention so that it shall have two distinct front positions, the most forward position being the second operation for beating up the weft only, and the lesser forward position for beating up the fell opening rod of larger sectional dimensions into the fell of the fabric previous to the beating up of t weft itself. Thus when the fell opening rod carrying the weft has passed through the open warp shed, the reed anvances, presses the fell opening rod into the fell of the fabric, and opens the warp shed sharply at a wide angle and in a straight line at the fell of the same.

lVhile the reed is in or near this position a swivel shuttle is operated so as to lock the weft from the said fell'opening rod to one selvage of the fabric, the reed is then moved by the forward motion of the loom to its rear position, and the fell opening rod is drawn away from the fell of the fabric by the, bearing bracket and supporting guides of the said rod on the backward motion of the reed and slay.

The fell opening rod is then mechanically withdrawn from the open warp shed, leaving within the open warp shed a double layer of weft. After such withdrawal of the fell opening rod the reed again comes forward, but on this occasion the reed comes farther forward and beats up the weft threads only into the fell of the fabric. It will be observed that the sectional dimensions of the fell opening rod being much greater than the weft, in order to effect con tinuous motion of the entire loom the described two distinct front positions of the reed are necessary.

The fell opening rod is made of tubular formation so that the second layer of weft within the tubular fell opening rod shall not become entagled with the warp threads until after the withdrawal of the fell opening rod from the warp shed of the loom.

The invention will now be more particularly described with reference to the accompanying drawing, in which Figure 1 shows diagrammatically the fell opening rod which also carries the weft and means for operating same. Fig. 2 shows right hand end elevation, the said operating means taken at or about line 22 of Eig. 1. Figs 3, r and 5 are diagrams illustrating the cycle of operations, and 6 shows a convenient means for operating a shuttle carrying a selvage thread for the purpose hereafter described. Figs. 3 and 6 are diagrammatic sectional views taken on the lines 33 and of 1 respectively. The swivel iuttle is not shown in Fig. 1. Fig. 7 is a transverse s ctional view taken adjacent rod 34 o! 6.

A tubular fell opening rod 1 is formed at one end with a nose block 2 having an eye me p ' open warp shed the reed 3 and carries the weft thread a, the thread passing from the spool 5 through the interior of the said tubular fell opening rod and out at the eye 3.

The fell opening rod 1 is constructed and utilized for the double purpose of opening the said warp shed to a wide angle at the fell of the fabric, and for the purpose of carrying the weft through the open warp shed of a loom.

To effect these objects it is necessary to give a reciprocating movement to the fell opening rod 1 in the direction of its axis into and out of the warp shed and a transverse movement to and away from the fell of the fabric, and accordingly the rod 1 is slidably supported in guides 6 and passes through a bearing bracket '7, both of which are carried on a beam 22 forming part of the slay of the loom. By so mounting the guides 6 and bracket 7 upon the slay, a transverse movement to and away from the fell of the fabric is given to the rod 1 with each movement of the slay.

The means illustrated for traversing the fell opening rod 1 into and out of the warp shed 8 consists of a block 9 fixed to the rod 1 and capable of sliding in the guides 6 carried by the slay of the loom. To this block 9 is attached a rope or belt 10 passing around idle pulleys 11 on the guide 6. The belt 10 passes around and is fixed to a pulley 11 carried in stationary bearings on a bracket 23 attached to one of the main frames 24 of the loom, and the pulley 11 oscillated by means of a cam 12, lever 18, l T: laiand pinion 15, as will be well understood upon reference to Figs. 1 and 2. The cam is mounted on a shaft 12 mounted in hearings on the frame 241 of the loom and driven by convenient means.

The reed 16 and slay 22 of the loom is operated so that it shall have two distinct forward positions, thus, when the rod 1 carrying the weft has passed through the 16 advances, presses the rod 1 into the fe l of the fabric and opens the warp shed sharply to a wide angletsee Fig. 3) and'in a straight line from selvage selvage of the fabric. lVhile the reed 16 is in or near this position a swivel shuttle 17 carrying a selvage thread is operated to lock the weft 4 to the selvage of the fabric. The reed 16 is then moved rearwardly and the rod 1 is simultaneously drawn away from the fell of the fabric by this movement. ll hen the reed 16 is retired by the slay to the position shown in Fig. 4: the rod 1 is withdrawn from the open warp shed, thus leaving two weft threads in the open aarp shed. The reed is then advanced to ts second and more forward position and Jeats up the two weft threads in the fell as indicated at Fig. 5.

To effect these two beating up operations and to obtain the two distinct forward positions of the reed, the slay of the loom is operated by a cam 18 carried on the shaft 12 having a suitable cam race to give the two varying forward positions to the reed 16 for each rotation of the cam. The cam operates upon a lever 19 pivoted at one end, the other end having a connecting rod 20 connecting it to the rocking supports 21 of the slay, so that the necessary two forward positions before described required to be given to the reed shall be carried out in each completee cycle of operations.

[it Fig. 6 a suitable means is shown for operating the shuttle 17 which is carried in a circular race fixed on the breast beam of the loom. Reciprocating motion is given to the shuttle by a cam 26 carried on the shaft 12 through the lever 27 fulcrumed at 28, link 29, lever 30, and gears 31, 32, and the shuttle driver 33 which is mounted on a short shaft 3% carrying thegear wheel 32.

Vi hen the rod 1 is forced by the slay and reed into the fell of the fabric as in Fig 8, the rotation of the cam 26 rocks the lever 27, and through link 28 the lever 29 rotates gears 31, 82 and the shuttle driver 83 which strikes the heel of the shuttle and moves it in its circular race 25. The shuttle 17 passes over the weft thread carried by the rod 1, and the said rod 1 is then withdrawn from the fell of the fabric by the rearward movement of the slay.

Upon the further rotation of the cam 26 the shuttle driver 33 strikes the forward end of the shuttle 17 and brings it back to its first position ready to be passed over the weft thread again at the next stroke of the rod 1.

What I claim as my invention and de-- sire to secure by Letters Patent is 2- 1. In looms for the manufacture of coir yarn matting; the combination of a rocking slay, means for rocking said slay to first and second forward positions and returning said slay, a combined fell opening and weftcarrying rod slidably mounted on the slay, means for reciprocating said rod proper times in the direction of its axis relatively to said slay to advance said r d through said warp shed and permit said slay to carry said rod in its advanced position bodily into the fell of the fabric to the extent of said first forward position of said, slay, means for locking the loop of the weft thread carried by said rod to one selvage of the fabric prior to the withdrawal of said rod from said warp shed, to permit said weft thread left by said rod to be beaten into the fell of ti e fabric by said second forward motion of said reed and slay.

2. in looms for the manufacture of coir yarn matting; the combination of rocking slay, means for rocking said slay to first and second forward positions and returning said slay, a tubular rod slida mounted on the slay and hating at its forward end for the exit of the w thread carried interiorly of said rod, r for reciprocating s id rod at proper t in the direction of its axis relatively to s v to advance said rod through said w: shed to permit said may to carry said ro bodily into the f ll of the a; ric to extent of said first forward position of s; slay, means for locking the loop of the w thread carried by said rod to one selvz of the fabric prior tothe withdrawal of said rod from said warp shed, to permit said weft thread by said rod to beaten into the fell of the fabric by said second forward motion of said reed and slay.

3. In looms for the manufacture of coir yarn matting; the combination of a rocking slay, me ns for rocking aid slay to first and second forward positions and returning said slay, a fell opening and weft carrying rod carried by the slay, means for reciprocating said rod at proper times in the direction of'it's axis relatively to said slay to advance said rod through said warp shed to permit said slay to carry said rod bodily into the fell of the fabric to the extent of said first forward position of said slay, a swivel shuttle, means for operating said shuttle to lock the weftcarried by said rod to one selvage of the fabric prior to the withdrawal of said rod from said warp shed, to permit said weft thread left by said rod to be beaten into the fell of the fabric by said second forward motion of said reed and slay.

4. In looms for the manufacture of coir yarn matting; the combination of a fell opening and weft carrying rod, a slide block fixed on the rear end of said rod, a rocking slay, a bearing block and guides fixed" to said slay to carry said rod and slide block, means for rocking said slay to first and second forward positions and returning said slay, a shaft, hearings on the frame of the machine to carry said shaft, a pulley on said shaft, idle pulleys carried on said slay, an endless cable passing over said pulleys and attached to said slide block fixed on the rear end of said fell opening and weftcarrying rod, a gear wheel on said pulley shaft, a. toothed rack engaging said gear wheel. means for reciprocating said toothed rack to give endwise reciprocating motions to said rod at proper times to advance said I rod through the warp shed to permit said slay to carry said rod bodily into the fell of the fabric to the extent of said forward position of said slay, means for locking the loop of weft thread carried by said rod to one selvage of the fabric prior to the withdrawal of said rod from said warp shed,

to permit said weft thread left by said rod to be beaten into the feli of U -e fabric by said forward motion of said reel and 5. in looms for the manufacture of coir yarn matting; the combination of a rocking stay, a retery cam and levers connect-ed to said slay to reek said second forward positions, s1 shy, it fell opening and weft-carrying rod mounted on the of the slay, means for reciprocating said rod at proper times in the direction of its axis relatively to sail siey te advance said rod through said Warp shed to permit said slay to carry said rod bediiy into the fell of the fabric to the extent of said first forward position of said slay, means for locking the loop of the Weft thread carried by said rod to one selvage of the fabric prior to the withdrawal of said rod from said Warp shed, to permit said Weft thread left by rod to be beaten into the fell of the fabric by said second. "forward. motion of said reed and slay.

ln witness'whereof I have hGIQHDi/O set my hand in the presence of two Witnesses.

"'ES ENTNESLE.

Witnesses v Jszxrss YATES, FREDERICK WILLS.

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