US669634A

US669634A - Loom for weaving tufted fabrics.

Info

Publication number: US669634A
Application number: US66245097A
Authority: US
Inventors: George William Grosvenor
Original assignee: Individual
Current assignee: Individual
Priority date: 1897-12-18
Filing date: 1897-12-18
Publication date: 1901-03-12
Anticipated expiration: 1918-03-12

Description

No; 669,634. Patented Mar. l2, Hill. a. w. anosvsuon.

LOOM FOR WEAVING TUFTED FABRICS.

(Application filed Dec. 18. 1897.]

(No Model.) 4 Sheets-Sheet I.

MTNESSES: l/VVf/VTOH No. 669,634. Patented Mar. l2, l90l. a. w. enosvznon.

L00" FUR WEAVING TUFTED FABRICS.

(Applicaplgn filed Dec. 16; 1897.)

(No Iodel.)

4 Shawl-Shoot 2.

m: worms PzrcRs co PHOTO-LITNQ, wxsama'mu, a. c.

No. 669,634. Patented Mar". l2, I90I..

. 6. w. snosvzuon.

L60" FOR WEAVING TUFTED FABRICS.

(Application filed Dec. 18. 1897.)

(No llodei.)

4 Sheets-Sheet 3.

Zl/L'Z'izesses.

m: norms wz zns co, PHOYO-UTNQ, WASNINGYOM u c v No.- 669,634. Patented Mar. [2, I901. G. W. GROSVENOB.

LOOM FOB WEAVING TUFTED FABRICS. (Application mea Dec. 19, 1897. (No lpdel.) 4 Sheets-Sheet 4.

ll/dngses. fizz 61.2502:

' c. m: NORRIS PEYERS co vnorau mou wAsHmnm o F FFIQF...

GEORGE WILLIAM GROSVENOR, OF KIDDERMINSTER, ENGLAND.

LOOM FOR WEAVING TUFTED FABRICS.

SPECIFICATION forming part of Letters Patent No. 669,634, dated March 12, 1901.

Application filed December 18, 1897. berial No. 662,450. (No model. Y

To all whom it may concern.-

Be it known that I, GEORGE WILLIAM GROSVENOR, a subject of the Queen of the United Kingdom of GreatBritain and Ireland, residing at Kidderminster, in the county of \Vorcester, England, have invcntedcertain new and useful Improvements in Looms for Weaving Tufted Fabrics, (for which I have obtained Letters Patent of the United Kingdom of Great Britain and Ireland, dated June 22, 1896, No. 13,747,) of which the fol-. lowing is a specificationf This invention relates to the manufacture of piled or tufted carpet fabrics known as Moquettes or Royal Axminster carpets; and it has forits objects to produce a more equal division 6f the pile or tufts by the wefts than heretofore, to effect at the same time a saving of the pile-yarn, and by a part of the means employed to attain the aforesaid objects to gain time for the movement of the bobbin carrier'or chains, thereby enabling the loom to be driven at a higher rate of speed than usual, with the result of obtaining an increased output.

The stitch or weave herein described and forming a part of my invention is a variation of Figure 2 of F. B. Fawcetts specification, No. 9,665 of 1893, and by aid of the hereindescribed means and the usual intervening mechanism it. is intended to weave the improved fabric on the looms described in the Specification No. 21,896 of 1895, which is in the names of myself and the aforesaid F. B. Fawcett.

In the furtherdescription of thisinvention reference is made to the accompanying drawings, in which- Fig. 1 is an elevation of one of two improved cams for operating the binding-warps, the two cams being made alike, but placed oppositely on the loom in the well-known manner. These cams are referred to hereinafter as camsA and A. Fig. 2 is an elevation of an improved cam,'to be known as cam O, for actuating the transferring- Fig. 3 is an elevation of an improved cam I) for working the weft carrier or needle. Fig. I is an elevation of an improved cam E for operating the deadwarp. Fig. 5 is a partial view of the left side of the loom, showinga finger F used for dividing the weftthread and a cam G and intervening mechanism for operating the said finger. Fig. 6 is an elevation of an improved cam L for actuating the small selvage-shuttle to work in combination with the finger. Fig. 7 is an elevation of an improved cam M for slackening the weft while the finger F is pushing the weft-thread into place. Fig. 8 is a detailed elevation of the lever H shown in Fig. 5. Fig. 9 is a plan of a portion of the fabric, and Fig. 10 is a longitudinal section of a part of the fabric, both on an enlarged scale. In Fig. 9 the first shot or back weft is omitted for the sake of clearness. Fig. 11 is an end elevation of the loom, showing the cam-shaft with cams thereon. Fig. 12 is a plan of a portion of the width of the fabric, similar to Fig. 9, but extended to show the selvage catch-thread running out of hole in a small shuttle to catch the loop in the doubled weft, the shuttle actuating mechanism being omitted for ciearness. Fig. 13 is a plan of the fabric, several of the warps being omitted, showing the aforesaid doubled weft held apart by the finger F shown in Fig. 5. Fig. 14 is an elevation, on an enlarged scale, of the finger F and the lever H for actuating the same, clearly indicating the means for adjusting the length of the stroke of the said finger.

In the class of looms above referred to the pile or tufted material is carried in bobbintubes, from the lower end of which the pile projects as it is drawn from the bobbins. The projecting ends of the pile therefore are put down in position between the warp-threads, after which a shot of weft is introduced into the shed to secure and fasten the ends of the pile or tufting material, and those ends are then turned backward and upward by means of a comb previous to the introduction of the next shot, after which the pile is cut. Consequently the class of looms and the fabrics made thereon dilfer from those formerly used, wherein the tuft-yarn was drawn from spools by clamps and then cutoff theproper length and inserted in the warp by nippers, as described in the United States Patent to Albert L. Skinner, No. 330,069, dated November 10, 1885, or the fabric described in the United States Patent to Robert F. Patterson, No. 432,763, dated July 22, 1890, in which each shed contained three shots of filling,each shot inserted double and the pile or tuft going around one of the upper double shots, while the next upper doubled shot was inserted and beaten up to hold the tuft in place, or in a similar fabric shown in Fig. 5 of the United States Patent to Richard B. Loynd, No.436,529, dated September 16, 1890, or in other cases in which the pile at its root had to pass around two threads of weft, so that the two halves or projecting ends of the pile were kept apart by the width or space occupied by the doubled weft; but by this invention I split or separate the two or double weft threads thrown as a single shot above the dead-warp after their insertion by means of the ordinary selvage-shuttle pausing in the loop of the weft and of a finger F, placed on the left side of the loom, Fig. 5, similar to the one previously in use on the opposite side, the said finger F being caused to push that thread of the weft which is nearest to the front of the loom nearly into the place it will subsequently occupy when beaten up by the lay, while leaving the other weft-thread stationary where inserted. This leaves a space between the two wefts in which the bobbin-tubes m, Fig. 11, with the pile ends as, 5 and 11, may be pushed through the warps. The lay is then caused to beat up the other thread of weft to bind the pile, and the comb afterward turns up the pile ends in the usual way, except only that they are turned around one thread of the weft instead of two,as formerly. The back weftis previously inserted, as in the two-shotstitch, Fig. 2, of the aforesaid No. 9,665 of 1893.

The improved cam A, Fig. 1, and its duplicate A are mounted oppositely (as aforesaid) on the loom in the well-known manner, and they are used for operating the heddles which carry the binding-warps. The arrow shows the direction of motion of the cam A, and beginning at the point marked a and extending to the point I) the first shot or back weft z is inserted, the warp 24 being held down by the cam A. Between b and the point 0 the second or upper shot of weft y is inserted, the warp being still held down. Between 0 and d the warps z and 2 are leveled to enable the pile ends a; to be pushed through the warps and the separated or split threads of the said upper shot of weft y by means of the transferring-arms, and from d to c the warps z and Z are reopened to allow the slack of the separated weft-thread y (which is to hold the pile) to be drawn tightfrom the left selvage by the ordinary apparatus for that purpose. Between the points e andf the warps z and 2 are leveled to enable the comb to push up the pile ends to to the surface, a process described in Fawcetts aforesaid specification, No. 9,665, of 1893. From fto g the warp 2 is raised by the cam A to admit the first or back weft shot :n again, and from g to h the warp 2 remains up for the insertion of the second or upper shot of weft y. Between h and 'i the warps z and e are again leveled for the insertion of the pile ends 00, and between t' andj the warps 2 and 2' are reopened for tightening the weft-thread 3 Then fromj to the warps z and Z are leveled for the comb to push up the pile ends 00, as before, which completes the cycle of operations performed by the cam A. As indicated above, the duplicate cam A operating the warp .2 performs the same cycle of operations; butthey are both put on the treadlebox of the loom with corresponding points opposite to each other, so that the cycle of operations of each cam differs from the other in point of time by one-half a revolution. Thus the cams A A being caused to operate the heddles which carry the binding-warp,one half of the warp-threads z are raised by the cam A, while the other half of the warpthreads 2 are lowered by the other cam A in the well-known manner; but it is to be noted that the cams A and A differ from the cams hitherto used by providing for reopening the warps to enable the weft-thread to be drawn tight.

A cam B is used for advancing the bobbin carrier orchains; but it is practically the same as the cam B shown in Fig. 2 of Grosvenor and Fawcetts specification, No. 21,896, of 1895. It is, however, adjusted to WOl'kll] accordance with the general sequence of motions followed in the present invention.

Fig. 2 indicates a cam O, altered to work the transferring-arms in accordance with the motions produced bythe improved cams A and A. The transferring-arms are required to move the bobbin, with the projecting pile ends, to and from the chains and to push the pile ends through the warps and the separated or split weft-threads to the weavingpoint, and the cam O is altered from the similarcam C, Fig. 3, in Grosvenors and Fawcetts aforesaid specification, so as to make the transferring-arms remain a little longer up at the chains, as they have to wait until the upper shot of weft is inserted and while the doubled weft-thread is separated or split before they can move the bobbin down to push the pile ends through. In addition to the said alteration the cam O is adjusted to work in accordance with the motions produced by the aforesaid cam B. The improved. cam O of the present invention is so made that from the point Z, Fig. 2, to the point an is produced no movement of the usual mechanism employed, the idle time permitting the chains to advance the next bob bin by means of the aforesaid cam B; but at the point on the transferring-arms are caused to seize a bobbin on the chains and from there to the point marked 02 take the bobbin down for the weaving process. Between 02 and 0 the pile ends at are pushed through the warps and the separated or split weft by the operation of the cam C; but from thence onward to p the operations of placing the pile ends at, Fig. 9, against the pushed-up thread of second weft-shot and a previously-inserted row of pile, causing the comb to turn up the pile ends to the surface, lifting the transferring-arms a little to draw the pile off the bobbin and cutting the pile by the knives, are all performed by contributory cams. Between 19 and Z, Fig. 2, the cam O operates the transferring-arms to take a bobbin back and replace it on the chains, which completes the cycle of operations performed by the cam C; but in combination therewith there are other cams which by the motions they produce are contributing to its operations, as they cause the transferring-arms to seize and replace the bobbin at the chains and rock the bobbin when the pile ends are pushed through the warps andthe separated or splitwefts. The aforesaid contributory cams, however, are not shown, as they are all of the usual construction, but require adj ustmenton the loom to work in unison with the altered and improved cam G, and the cam B as part of the sequence of motions producing the improved general result.

In Fig. 3 an improved cam D is shown, which is very similar in its form, and consequently in the operations performed by it, to the cam D shown in Fig. 40f the aforesaid Grosvenor and Fawcetts specification, No. 21,896 of 1895. Thecams are alike in having the same lever arrangement and in giving more scope and ease in working the weft carrier or needle at a high speed and in imparting but two insertions of weft in its revolution, unequal intervals of idle time being provided for in its revolution. In the cam D, however, of the present invention the intervals of idle time, though still unequal, do not differ so much as in Grosvenor and Fawcetts cam D, because in this case the upper weft has to be inserted before the bobbin comes down to push through the pile ends and is not delayed until. afterward, as in the former case. Consequently the long interval of idle time between the weft insertions is proportionately reduced. Furthermore, the present can] D is fixed on the loom in a position to differ by half a revolution from the relative position of Grosvenorand Fawcetts cam D, so that the shorterinterval of idletime comes between the insertion of the back and upper wefts for the same stitch or row of pile and the longer interval of time between the insertion of the upper and back wefts or the finishing and beginning of a stitch or row of pile. By a suitable adjustment of the cam D this latter interval occurs in the sequence of motions while the chains are being advanced and during the subsequent tufting motions, thus affording the requisite time for performing these movements before the next back weft (or first shot of a stitch) is inserted. In the drawing of the cam D, Fig. 3, 1" indicates the point on the cam at which the needle begins to insert the second shot or upper weft, the cam rotating in the direction of the arrow, the operation being finished at s, and after which the separation or splitting of the upper weft takes place. Between 8 and t the needle is withdrawn from the shed, and from t to u the longest interval of idle time occurs, this being the termination of the stitch, as above stated. The next stitch then begins, the needle inserting the back weft (or first shot) between tt and '0, between U and w the needle is withdrawn from the shed, and from w to 7" occurs the short interval of idle time for the needle, which completes the cycle of operations of cam D.

Fig. 4 represents an improved cam E, used for operating the heddle carrying the dead warp (or stutter) inserted in the woven fabric. At the point marked a'in thedrawings the dead-warp is raised to allow the insertion of the first shot or back weft between that point and Z2, while from thence to the point 0 the deadwarp is lowered for the insertion of the second shot or upper weft. Between 0 and d the warps are leveled for the pile ends to be pushed through the warps and the separated or split threads of the upper weft, and from d to e the warps are reopened to allow the slack of the separated weft-thread which is to hold the pile to be drawn tight from the left selvage by the ordinary apparatus for that purpose. Between 6 and f the warps are leveled for the comb to push the pile ends up to the surface. From f to g the dead-warp is raised for a sufficientperiod to admit the insertion of the next first. shot or back weft, and then the cam slopes down to the point it to lower the dead-warp while the next second or upper shot of weft is inserted. Between h and t" the warps are again leveled for theinsertion of the pile ends. From Z" to j they are again reopened for tightening the weft-thread, and from 7" to It" the warps are leveled for the comb to push up the pile ends to the surface, the cycle of operations being again repeated from a.

Fig. 5 is a view of the left side of the loom, showing the pivoted finger F, (preferably forked at the end, as shown,) the intervening mechanism for working the same from the cam G consisting of the centrally-pivoted lever H, with its cam-engaging roller at the lowerend (shown also in side elevation, Fig. 8) and a rod I connecting the lever H and the pivoted finger F. Means of adjusting the length of stroke of the finger F are provided by a slot in the upper end of the lever H and holes in the lower part of the pivoted finger F, and by means of a pin and nut at each end of the connecting-rod I the latter is pivotally connected at one end to the said lever H at any desired point in the slot, and similarly at the other end in any desired hole of the finger F to give the latter a longer or shorter stroke, as required, the whole being actuated by the cam G, mounted upon the shaft K, revolving in suitable bearings (not shown) carried by the loom-frame J.

In looms of the kind hereinbefore mentioned the wefts are doubled by the manner of their insertion, which is as follows: Each IIO- shot of weft is inserted by the needle, consisting of a long projecting rod connected at its right-hand end to a slide, whereby the needle is moved to and fro in the shed formed by the warps, starting, of course, from the right side of the loom. At the left side or free end the needle is provided with an eye having an opening to the outside to enable the weft-thread to be slipped into the eye by a guide, the weft being supplied from a bobbin or ball set at the right side of the loom. The weft runs through the eye of the needle during its passage through the shed of the warps, so that on its arrival at the opposite or left side of the loom a loop is necessarily formed by the doubling of the weft, through which the ordinary small selvage-shuttle passes, carrying a thread to catch this weftloop and form a selvage. B y this process the weft is held so that the needle can be withdrawn from the shed, leaving the weft behind, while the shuttle also returns to its normal position. In this invention after entering the loop of the weft the shuttle pauses therein (by means of a cam hereinafter described) to keep apart the doubled line of weft in the position shown in Fig. 12, with the outer thread of the doubled weft below the shuttle and the inner thread above it, thus keeping the outer thread of the doubled weft in place to hold the pile, while its continuation or inner line of weft goes over the top of the shuttle at a higherlevel in position for the finger F to pass over the outer thread and engage with the inner one to separate the two, as shown in Fig. 14. This special action of the shuttle also releases the weft from the needle, so that the latter can be withdrawn from the shed. The inner line or thread of weft being bound in the fabric at the righthand selvage is the one that can be beaten or pushed up toward the weaving-point,while the outer line or thread of weft remains at the distance from the Woven fabric at which the needle inserted it. The two portions of the weft being thus kept apart by the shuttle during its pause in the loop of the doubled weft, as shown in Fig. 12, the finger F advances between the shuttle and the edge of the warps and pushes the upper portion orinner line of weft (which is higher in level than the outer thread by the thickness of the shuttle) for about two inches from the outer line of weft, as shown in Fig. 13, and so leaving sufficient space for the bobbin-tubes at, Fig. 11, with the pile ends 00 to be pushed through between them. The finger F pauses after having pushed the inner thread to keep it in place until the warps are tightened upon it by being leveled for the bobbin movement, after which the finger F is withdrawn to its normal position. In the meantime the shuttle completes its passage through the loop of the doubled weft, carrying the catch-thread to form the selvage, and the back weft or'first shot is inserted and operated in the usual manner. The inner thread of doubled weft is pushed apart from the outer thread by the finger F by means of the cam G, Fig. 5, between the points 00 to 1 through the springpressed lever H and rod I, which is the position shown in the drawings. From g to 2 the finger pauses to hold the pushed thread in place until the warps are leveled, after which it returns to its normal position.

' Fig. 6 shows an improved cam L bolted onto its disk for actuating the small selvageshuttle in combination with the finger F. By means of this cam and intermediate mechanism the shuttle is caused to move its point under the needle and through the weft-loop from Z to m and at the latter point to make a very slight pause to release the weft from the eye of the needle by holding the weft back while the needle withdraws from it, as in ordinary looms. Between m and n the shuttle moves afarther distance into the weftloop to put its body therein and then pauses until the point 0' is reached, thus holding the doubled threads of weft apart during their separation by the finger F. Then from 0' to p and onward to q the shuttle completes its passage through the weft-loop, carrying the catch-thread with it, to form the selvage in the usual manner, and from g to r the shuttle returns to its normal position. Another cam follows on, being fixed to the other or plain portion of the disk; but it is not shown, as it is of the usual construction. It is used for actuating the shuttle to form the selvage when the first shot or back weft is inserted.

Fig. 7 indicates an improved cam M, used for slackening the upper weft-thread during its insertion by the needle and division by the finger. The weft-thread is normally in a state of tension by a separate and ordinary apparatus; but this cam is adapted to slacken or take off the tension, as required, as beginning at s the weft-threadis slackened for the insertion of the second shotor upper weft by the needle until i is reached. Between 25 and a the weft is tightened to insure the point of the shuttle going correctly through the weft-loop, also for the finger F to come in contact with the inner thread. Then from u, to 2) it is again slackened for the finger to push the thread. After '0 the tension apparatus (not shown) pulls through the shed whatever slack there may be from the left selvage, the heddles being reopened for that purpose.

A partial plan of the fabric is shown in Fig. 9 (but with the first shot or back weft omitted for clearness) and a longitudinal section through one complete stitch'in Fig. 10, both views being upon an enlarged scale. In these the pile ends are indicated by w, the looped or doubled weft thread, which forms the second shot or upper weft, is indicated by y, and in Fig. 10 the first shot or back weft by z. The binding-warps are indicated in both figures by z and 2 and the stuffer or dead-warp by 2 The looped end of the upper .shot of the doubled weftthread is improved cams A, A, G, D, E, G, L, and M necessary thereto, together with material for weaving, is ready for the adjustment of all the cams to be used, and byreference to the foregoing description and to the example of the two-shot fabric, Fig. 2 of the aforesaid specification, No. 9,665, of 1893, and descriptionof the weaving process any loom-tuner will be able to adapt and adjust the mechanism to the sequence-of the required motions. Assuming that a complete stitch has been woven and that the cutting of the previous row of pile by the knives has just taken place, the bobbin is released, ready to be returned to the chains by the transferring-arms. The heddles, which respectively carry the bindingwarp z in Figs. 9 and 10-and the dead-Warp e have been raised, while the heddle carrying the binding-warp 2 has been lowered by the improved cams A, A, and E. The weft-carrier or needle-cam D having just passed its longest interval actuates the needle, inserting the first or back weft z, the lay beats it up, it having passed its shortest interval, and recedes. The heddle is then shifted by the cam E to lower the dead-warp 2 the other two heddles remaining in the same position as for the previous shot or back weft, while the needle is again actuated by the improved cam D to insert the second shot or upper weft y after its shortest interval of idle time. The doubled weft of the second shotis then separated or split by the finger F, advancing from the point at which it is shown in Fig. 12 and pushing that portion of the thread which is bound at the right selvage of the fabric nearly into its place, as shown in Fig. 13, leaving the other portion of the upper weft-thread where it was inserted by the needle. This leaves a wide parallel space between the two threads of the weft for the bobbin-tubes 8, Fig. 11, to push the pile ends 00 through, as shown in Fig. 13. The warps are then put level, the bobbin being returned to the chains in the meantime by the transferring-arms as actuated by the cam O, after'which the chains are advanced to bring the next bobbin into position by the cam B. (Shown in Fig. 2 of the specification No. 21,896 of 1895.) The cam 0, still rotating, actuates the transferring-arms, which seize the next bobbin and, taking it down,pushes the projecting pile ends through the leveled warps in the space between separated portions of the weft-thread and places the said pile ends against the previously woven row of pile, the tubes pushing the inner portion of the weft-thread up at the same time. The warps are then reopened to allow the slack of the outer part of the weft-thread to be drawn tight from the left selvage in the usual manner. In the ordinary looms this is done with each shot of weft as soon as itis inserted; but in this case it has to wait to be done after the bobbin movement, and the warps have to be reopened for the purpose. The lay then heats up the outer portion of the weft-thread, which incloses the pile ends between the doubled weft-thread. The transferring-arms are slightly raised to draw the required length of pile off the bobbin, the warps are again leveled for the comb to push up the pile ends to the surface, and the pile is out, all as in the ordinary way. This brings the loom to the point of exactly repeating the cycleof operations, except that the shifting of the binding-warps is reversed on account of the positions of the cams A and A on the treadle-box; but in the recurring cycle of operations the binding-warps are again reversed to the position first assumed, and so on. The effect produced is that by .thus separating the doubled or two wefts simultaneously inserted a three-shot fabric is practically formed in a two-shot loom, and the said wefts divide the pile singly, as is the case also with some three-shot fabrics wherein each shot is thrown separately, instead of as in some other three-shotfabrics'in which the pile is bent around two separatelythrown shots, whereby a more equal division of the pile and a tighter bind are obtained.

The improvements described require the pile'weft to be inserted before the pile ends are pushed through the warps instead of afterward, as heretofore. Consequently this allows the bobbin with the pile ends to remain that much longer on the chains and to give a corresponding increase of time for moving the said chains, of which ad vantage maybe taken by driving the loom at a higher rate of speed.

It is to be noted that a longitudinal section taken through a fabric woven in accordance with this invention would in appearance be the same as Fig. 3 of Fawcetts specification, No. 6,158, of 1882; but in this latter case three distinct shots of weft are thrown to one row of pile instead of two only, as in this present invention. Consequently I would have it understood that I do not claim anything described or claimed in the said specification nor in any of the hereinbefore-mentioned specifications.

What I claim as my invention, and desire to secure by Letters Patent, is-- 1. In a loom for manufacturing piled or tufted carpet fabrics, the combination of means for working the heddles and warp-threads, and for inserting adoubled ortwo threads of weft simultaneously, with means such as a finger F forseparating orforminga wide space between the said two threads previous to the insertion of the pile ends within the said space,

and means for inserting the pile ends between said threads, substantially as and for the purpose herein described.

2. In aloom for manufacturing piled or tufted carpet fabrics, the combination of means for working the heddles and warp-threads, means consisting of a single needle for inserting a doubled or two threads of weft simultaneously, means such as a finger Fifor separating or forming a wide space between the said two threads, means such as a shuttle carrying a catch-thread to pass through and engage with the loop of the said doubled weftthreads to form a selvage previous to the insertion of the pile ends Within the said space, and means forinserting the pile ends between said threads, substantially as and for the purpose herein described.

3. In a loom for manufacturing piled or tufted carpet fabrics, the combination of means for working the heddles and warp-threads, means such as a single needle for simultane ously inserting a doubled or two threads of weft across the fabric in a single shed of the binding-warps, means such as a shuttle and catch-thread to enter the loop of the said weftthreads and cause the sh uttle to pause therein means such as a finger F to pass over one of the said doubled threads and engage with the other thread to separate it from the first during the said pause of the shuttle, and means for inserting the pile ends between said threads, substantially as and for the purpose herein described.

4:. In a loom for manufacturing piled or tufted carpet fabrics. the combination of means for working the heddles and Warp-threads, means for sim ultaneously inserting a doubled or two threads of weft across the fabric in a single shed of the binding-warps, means such as a shuttle and catch-thread to enter the loop of the said weft-threads and cause the shuttle to pause therein, means such as a finger B to pass over one of the said weft-th reads and engage with the other to separate the two by a Wide space, means to continue the motion of the said shuttle after the said space is formed to make a selvage, and means for inserting the pile endsbetween said threads, substantially as and for the purpose herein described.

5. In aloom for manufacturing piled or tufted carpet fabrics, the combination of means stantially as and for the purpose herein described.

65. In a loom for manufacturing piled or tufted carpet fabrics, the combination of means for inserting and retaining two weft-threads across the fabric in a single shed, with a finger F pivoted at its lower end, apivoted lever H and actuating-cam G, a connecting-rod I between the said finger and lever, means for adjustment whereby the length of the stroke of the said finger may be varied to enable it to engage with one thread and separate it from the other by a wide space, and means for inserting the pile ends between said threads, substantially as and for the purpose hereinbefore described and shown in the drawings.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

GEORGE WILLIAM GROSVENOR.

Witnesses:

JAMES MORTON, FRED GADSBY.