US2490041A - Method and means for the manufacture of cut filling pile fabrics - Google Patents

Description

ZAQQWE-i Dec. 6, 1949 5 Sheets-Sheet 1 OF CUT FILLING FILE FABRICS Filed May 28, 1948 2 UA R w W an m my mm m m l.ll @l c 0 @N 5 0 QM. @WJ E mN MN JWN QN MN 0 mm WM E MN A MN mm mm 9 U. u R 0 NM y a NM mm X km 0 QR Lu |H\ H Dec. 6, 1949 o. a. mos-r 1 METHOD AND MEANS FOR THE MANUFACTURE OF QUT FILLING FILE FABRICS Filed May 2a, 1948 5 Sheets-Sheet '2 INVENTOR. Owen D. F vs Dem 6, 1949 Q a mum" 2,490,043

METHOD AND MEANS FOR THE MANUFACTURE 9F GUT FILLING PILE FABRICS 5 Sheets-Sheet 3 Filed May 28, 1948 JNVENTOR. Gwen. DF' -osi fiflawaey Dec. 6, 1949 o. D. mos-r 2,499,041

METHOD AND MEANS FOR THE MANUFACTURE OF CUT FILLING PILE FABRICS Filed May 28, 1948 5 Sheets-Sheet 4 SN mw INVENTOR. 010m .5. @0525 BY 2 g 'Dec- 6,1949- 0. D. FR'DST IIBQHOD AND MEANS. FOR THE MANUFACTURE V OF CUT FILLING FILE Ffi BRICS Filed May 28, 1946 v 5 Sheets- -Sheet 5 N0 ML; W

Patented Dec. 6, 1949 METHOD AND MEANS FOR THE MANUFAC- TUBE F CUT FILLING PILE FABRICS Owen D. Frost, Waynesboro, Va., assignor to Crompton-Shenandoah Co. Inc., a corporation of Virginia Application May 28, 1948, Serial No. 29,802

28 Claims. 1

The present invention relates to a novel method and means for the manufacture of cut filling pile fabrics, such as corduroys, velveteens and other fabrics wherein the pile consists of filler threads intermeshed with warp threads of the ground fabric.

In accordance with the conventional method of manufacture of such fabrics, a pile filling is alternatively interlaced with and floated over a suitable number of ground warp threads. The woven fabric is removed from the loom and, after stiffening, brought to a cutting stand, where a cutter guide is manually inserted and retained in each of the Warpwise races formed under the float-s, thus making possible the cutting of the floats and hence the formation of the pile. This cutting operation not only requires a high degree of skill on the part of the operator as Well as in tooling the guide and knife, but is, at least in the case of velveteens and the finer grades of corduroy, extremely time consuming, due to the fact that only a limited number of races can be cut at the same time. Although the time factor is objectionable even in the case of corduroys, it is obviously much more objectionable in the case of velveteens, the races of which must be out one at a time.

Due to the high degree of skill required for cutting both corduroys and velveteens, the slowness thereof and the inefficiency occasioned by separate consecutive weaving, stiffening and cutting operations, numerous efforts have been made to arrange the cutters directly on the loom in such position that the floats are out soon after being formed. Thus, it has been suggested to Weave a special Warp guide wire into each Warp- Wise race of floated pile fillings, this wire lying below the floats of pile filling but not interlacing with the ground filling or warp, and serving to guide the race to a cutter arranged on the front of the loom, which is designed to cut the floats so" as to give a cut pile fabric. These special warp guide wires are drawn into the loom from a special beam located in the vicinity of the warp beam, and wound, after being liberated from the fabric by the cutting of the floats, onto a special roll or beam. These so-called warp wire pile looms had many concomitant disadvantages. For example, eflicient pile cutting Was practically impossible because of the inherent vibration of the loom and the difficulty of maintaining constant and equal the tension of the individual wires; the drawing-in of a large number of wires from a beam is most impractical; convenient supervision of the loom operation is prevented due to the location of the cutters; the lengths of wires required and the consequent investment therein are both excessive, coupled with the necessity of cutting the wires if the full wire length is not to be woven. As a result of these many drawbacks, the warp-wire pile looms have not been generally introduced into the pile fabric industry, the manufacturing of cut pile filling fabrics being today still effected, for the most part, by the uneconomical and difficult method of cutting the floats in a separate operation after the fabric has been removed from the loom.

I have now discovered a new method and means for the manufacture of cut filling pile fabrics which, while effecting the weaving and cutting simultaneously, and providing for automatic guiding of the races to the cutters, has substantially none of the disadvantages inherent in the warp-wire looms heretofore suggested. In the filling pile-cutting loom of my invention I provide a plurality of continuous wire loops, every two of which are woven, over a section of their perimeter, into a separate warpwise-race of floated pile fillings, and which guide said race to cutter knives, where the floated fillings are cut, the cut pile fabric moving onto a cloth roll, while the continuous wireloops return to the loom to be again woven in pairs under new floated fillings which are in turn guided infallibly to the cutters. A special compensator assures constant tension of the wires while they are being shedded, means also being provided for maintaining the wires taut during the cutting, as well as for taking up any slack that may be present in said loops.

native scheme ior drawing the wires through the compensator shown in Fig. 2;

Fig. 6 is a fragmentary view of one part of the compensator of my invention 6-6 of Fi 2;

shown along plane Fig. 7 is a right side view of the showing of Fig. 6;

Fig. 8 is a top plan view of the showing of Fig. 6;

Fig. 9 shows a detail of construction;

Fig. 10 is an end view of the showing of Fig. 9;

Fig. 11 is a diagrammatic showing of the pile cutting operation in accordance with my invention.

Referring to Fig. 1, which diagrammatically illustrates the loop wire pile loom of my invention, I designates a yarn warp beam, from which the warp ends 2 pass up and over whip roll 3. The warp ends then pass through the warp stop motion drop wires 4, and after, threading through lease rods 5 pass through ordinary warp harnesses 8a, 6b, 5c, 6d, 66, 6 these warp ends being hereinafter designated 2a, 2b, 2c, 2d, 2e, 2] respectively (compare Fig. 11). While, for purposes of illustration, six such harnesses are shown in the drawing, it is evident that these may be multiplied, in the manner known in the textile art, according to the pattern being woven. From harnesses 6, the shedded warp ends 2 pass through reed 8 carried by lay 38 which beats up the filling thread 9 inserted by shuttle It into the fell of cloth H, which then passes over takeup roll [3, cloth I I being held against the greater part of the periphery of said roll l3 by guide roll I over which cloth I 1 passes on its further path.

In addition to the conventional warp ends 2, there are provided special continuous wire loops 20, consisting for instance of lengths of wire of high-tensile strength, the ends of which have been butt-Welded together to form continuous loops. These loops pass from guide bar 2| through stop motion device 4 and through the heddle eyes of special harnesses la, lb, lc, 7d, the number as well as the pegging of which may be varied according to the intricacy of the pile pattern being woven. The shedding is always such however that a pair ofcontinuous wire loops Zea and 29d, 2% and 200 respectively (Fig. 11) are laid in each race formed over warps 2a, 2b and 2c, 2d, 2e and 21 respectively by pile filler threads 9b, 9d and 9g, 90, 9 and 9h respectively, fillers 9a and 9e being the ground filling. While in the diagrammatic showing of Fig, 1, each of the wire loops 28 is drawnthrough a separate heddle 1," it is evident that alternatively each pair of I wire loops may be drawn through a separate heddle. In this case necessary precautions are taken to assure that the wire loops of each pair lie in the same horizontal plane within said heddle eye. While such drawing-in drafts can be used to advantage when weaving ordinary fabrics, the use of a separate heddle for each wire is preferable for the weaving of fabrics with wire warps under high tension.

After being drawn through harnesses l, the wire loops 20 are threaded through reed 8. The two wires for any particular race may be threaded through the same dent of the reed; thus wires 20d and 26a may pass through one dent and wires 20b and 200 through another dent. Preferably, however, the wires for a particular race pass through separate dents, in which case a particular dent will carry one wire from each of two contiguous races; thus wires 20a and 28b will pass through one dent, and wires 29c and 2901 through the next dent. The latter arrangement was used in the weaving of the fabric shown in Fig. 11, and isgenerally preferable so as to prevent crossing offthe wires in the race before reaching the point of cutting. It is obvious that regardless of the reeding employed, the two wires for any given race always lie on difierent sides of the corresponding cutter (see Fig. 11).

The filler thread 9 (Fig. 1) having now been inserted in the shed by shuttle l8, and having been beaten up into the fell of cloth II, the wire loops 20 are carried forward with the advance of the cloth by their intermeshing with filling 9 (compare Fig. 11), and pass with cloth ll over take-up roll l3, surfaced for instance with card clothing, downwards via guide roll hi and then horizontally via guide rolls [5 and I5 under false fioor IT, on which the operator may stand to better supervise the perfect functioning of both the loom part and the cutting part of the loop wire cut pile loom of my invention. From guide roll It, fabric ll passes upwards over drag roll 19, being held against the latter by guide roll l8, and thence onto cutting table it. The rear edge of this table is true and fabric ll preferably passes upwards to it from drag roll ll at a small angle, for example 5, so as to assure the laying fiat of fabric I! on table 70. Circular cutters 85;

mounted over this table effect the cutting of the floats of pile fillers 9b, 9c, 9d, 9f, Sg, Sh (Fig. 11) thus liberating wire warps 20a, b, c and d. The cut pile fabric 22 now passes downwards over the front, true edge of table Ti), and, at an angle of preferably about 40, over a second drag roll 23, being held against the latter by guide roll 24,

over which it passes on its way to cloth roll 25,

Rolls I Q, 23 and 25 may be suitably driven through.

friction clutches (not shown in the drawing), thus making possible an adjustment of the ten sion of the fabric.

in the grey, requiring no further cutting operation or the stiffening ordinarily preceding such cutting. As no stiffening is required, the conventional neutralizing of the stiffening caustic prior to scouring is also eliminated, the abolishment of this step being a further characteristic;

advantage of the method of manufacturing cut pile fabrics in accordance with my invention.

As wire loops 20 are released from fabric H: by the cutting operation, they are carried for-.

ward, at an angle of about 1 above the horizontal,

over guide-bar 26, into the nip of a pair of feed rolls 2'? and 28 (Fig. 1), preferably surfaced with a yielding material such as, for instance, rubber.

means not shown in the drawing) in the direction indicated by the arrows, their peripheral. -velocity being slightly in excess of the speed of advance of cloth 22. Rolls 21 and 28 are preferably resiliently mounted and vertically adjustable.

with respect to each other. The function of rolls 2i and 28 is to impart a slight tension to wire. loops 25, so as tomaintain said wires taut at the point of cutting, this tension also serving to re-.

lieve to some extent the tension on yarn warp ends 2, thus reducing the number of yarn warp breaks. It is obvious that various other tensioning means may be employed for this purpose,

such as for instance individual springs slidably connected at one end to wire loops 28, the otherends being adjustably fixed to a suitable support, so as to permit of adjustment of the spring tensions. Numerous other embodiments of this tensioning means will immediately be apparent to the skilled'artisan, but I prefer to employ the above described rolls 21, 28, due to their simplicity aswell as to their improved performance.

Fabric 22, as removed from. cloth roll 25, is a high quality filling pile fabric After emerging from this tensioning means, wire loops 20 pass under guide-rod 29 to guide-rod 30, and thence around pulleys 3|, each wire loop 20 passing around a separate pulley 3| (Figs. 1 and 3), these pulleys serving for the taking up of slack in the wire loops 20, primarily that slack resulting from the wire loop forming operation hereinafter described. Pulleys 3| are individually attached, for instance by wires Bil, to rods 8| supported in frame '32. Frame 82 is suspended from supporting framework 68 in a horizontally adjustable manner, so as to permit forward or backward movement thereof for adjustment of the tension on wire loops 2e occasioned by pulleys 3|.

Upon leaving pulleys 3|, wire loops 20 (Figs. 2 and 3) pass upwards under guide-rod 32, over guide-rod 33 and then, commencing their return course, horizontally to compensator, being possibly supported on this horizontal course by further guide-rods, such as 34 and 35.

Compensator 40 (Figs. 1, 2, 4-8) consists of a number of upright heddles 4|, through the eyes of which wire loops 25 are threaded. Each of the heddles 4| is attached at its lower end to a spring 43, which takes up slack in wire loops 2i} caused by the shedding of wire harnesses 1 (Fig. 1), thus makin a tight shed and preventing loose wire loops from breaking warp ends 2. Preferably the number of such heddles 4| is equal to the total number of heddles in harnesses 1, although there may be, if desired, a lesser number of heddles 4| where each of wire loops 20 pass through a separate heddle of harnesses 1, each pair of wire loops 20a, 23d being threaded, for instance, through one of heddles 4|, and each pair of wire loops 20b, 290 being threaded through another heddle 4|. Alternatively, where the wire loops 20a, 20d and 29b, 200 respectively are threaded pairwise in harnesses 1, there may be a greater number of heddles 4| than of heddles in harnesses 1, this arrangement being preferable even in this case.

Heddles 4| are arranged in sections transverse to the direction of advance of wire loops 2|], two of such sections 45 and 45 being shown for purposes of illustration in Fig. 1, while two additional sections 46 and 41 are shown in Fig. 2, there being thus, in the specific embodiment shown by way of example in the drawing, one section of heddles 4| for each loop wire harness 1, in accordance with the preferred embodiment of my invention. These sections are held together in spaced parallel relationship to each other by a supporting structure consisting of longitudinal members 48 and 49 and uprights 5i] and 5| (Fig. 2). Each of sections 44, 45, 46, 41 in turn comprises a framework consisting of transverse members 52, 53, 54 and lateral uprights 55 (Figs. 6 and 8). The heddles within each section, for example section 44, shown in Fig. 6, are staggered in two rows, thus making it possible to accommodate a greater number of heddles in each section. The heddles slide in aligned openings 55 and 51 (see Fig. 7) in transverse members 52 and 53 respectively, the heddles being of non-circular cross-section and openings 56 and 51 being of corresponding cross-section, so as to prevent turning of the heddles. Tension springs 43 are connected to the end of each heddle 4|, the lower end of said springs 43 being alternatively connected to two cross rods 58 and 59. Rods 58 and 59 are secured in position by a number of eye screws t0 and 3| respectively, which in turn are adjustably mounted on bottom transverse mem- 6 her 54 so that the tension of springs 43 can be readily varied to an equal extent.

Between each heddle section 44, 45, 46, 41, as well as between section 44 and upright 50 and section 41 and upright 5|, there are mounted in longitudinal members 48, cross-bars 65, 64, 63, 66, 62 respectively, extending parallel to said sections. Wire loops 20a, 25b, 20c, 20d entering compensator 40 over cross-bar 35 first pass (as shown in Fig. 2 and diagrammatically in Fig. 4) over cross-rod 62, whereupon wire loop 220. passes through eye 42a of heddle Ma and then over cross-rods 33, 64, 65 and 66; wire loop 20b passes over cross-rods 62 and 63, then through eye 42b of heddle M19 and over cross-rods 64, $5 and 65; wire loop 230 passes over cross-rods 62, 63 and 54 through eye 420 of heddle 4lc and over crossbars 65 and Gil; loop 28d passes over cross-rods 62, 63, 64, 65, then through eye 42d of heddle 4|d andthen over cross-rod 66. Alternatively the drawing-in scheme of Fig. 5 may be used.

After passing out of compensator 40, the wire loops 23 (Fig. 1) pass over guide-bar 61 downwards to guide-bar 2|, located just behind whip,

roll 3, with its underside slightly, for example 1",

above the top of said whip roll. The direction of travel of wire loops 2|] is again changed approximately by guide-bar 2| and the wire loops 2! are pulled horizontally into the loom, repeating the operations described in the foregoing. It is evident that by this arrangement the wire loops in no way interfere with the twistpile cutting loom of my invention (as can be noted from the diagrammatic showing of Fig. 1). The means of support may be any means known per se, it being for instance possible for framework 68 to rest on uprights (not shown in the drawing) extending from the floor of the pile-cutting loom. It is also possible however for said framework 68 to rest on rails (not shown in the drawing) which are suspended from the ceiling. When it is desired to change the fabric construction or design being woven, framework 68, together with compensator 40, frame 82, and guide-bars 30, 32, 33, 34, 35 and 61 can be removed from the support and replaced by a duplicate previously loaded with wires 20, thus avoiding the necessity of holding my cut pile loom idle while new wires 20 are being drawn into compensator 40 and around the said guide-bars. It is to be emphasized however that unless a radically different cut pile pattern repeat is to be woven, there is absolutely no necessity whatsoever of inserting new wires, wire loops 20 of constant given length continuing indefinitely on their limited endless path. The consequently, strictly limited amount of wire required is one important characteristic of the cut pile loom of my invention.

Guide-bars 2|, 2B, 29, 3|], 32, 33, 34, 35 and 61 (Figs. 1, 2 and 3) may consist of stationary round shafting into which there is set suitable spacer means, for example an open-end comb I21 (see especially Figs. 9 and 10), the teeth I28 of which modates only a single wire loop 20, thus prevent- 1 ing the formation of any false twist. While a re -04f guide bars 2!, 26 and 29-arepreferablystationaryso as to decrease the possibility of any lateral cular discs mounted on said bars. Of course,

within the generic concept of my invention; thespacer means may be of any suitableconstruc tion so long as they perform the function of separating the wires and thus preventfalse twist in wire loops 26. I prefer the use, however, of stationary guide-bars, the spacer means-of'which comprise loosely mounted circular discs.

While it may be observed (Fig. 1) that I em-- ploy circular cutters 35 for the cuttingof the pile floats (9b, 9c, 9d, 9 99, 9h, Fig 11), it must-of course be understood that other-types of cutters may also be used, and for certain purposes,- they may be replaced byv reciprocating knives. gardless of the type of cutter employed-however,

provision is made for adjustment of the-vertical clearance with respect to cutting table 'lfig' toas sure. optimum cutting performance regardless of. the specific pile fabric being woven and out;

As cloth I I advances on cutter table HT-into cut ting relationship to cutters 85 (Fig; 1) wire loops ware maintained taut by: the 'pull exerted by the aforementioned tensioning. means, for instance rolls 2?, 28 so that uponiiberaticn fromthe cloth, the wire loops pass forward at a small angle, as

already mentioned, of for instance l above the horizontal. This angle may be increased up to, for example 45, in which case the increased upward pull causes the floats (9b-dand 9f-h, Fig. 11) to be gradually stretched upward 'away from the ground of the fabric, thereby decreasing the possibility of cutters 85 injuring theground. However, the resulting increased tension of these floats may make this undesirable; and" I have diagrammatically shown in Fig. 11 the-preferred case wherein the angle of lift of wire loops Zllis slight.

The wire loops being once threaded'through the cutpile loom of my invention, they remain in their given positions. without need of replacement or of further investment in new wire, as longas the pattern being woven is not changed: However,

if it is desired to use the loom of myinvention pile fabric requiring for the. manufacture of acut a different reed than the fabric for which the-loom was originally set up, wire loops *must then be cut and-new wire loops inserted according to. the design of the new pile pattern to be produced. In this case the individual wires are threadedi (Fig. l) to the left of guide-barsand 32, over guide-bars 33', 34 and 35, through compensator and over guide-bar 61, all of which are mounted on frame 68 (Fig. 5). noted, are not as yet Wire loops 20', it is to be placed around" pulleys 38.

The forward endsof these wires are then brought a suitable distance over and beyond cross-bar I32 (Fig. 2) mounted on extension frame 68. It is to be noted that cross-bar I32 is not provided with a comb. During'the threading. operation extension l 33 is maintained parallel toframe 68- by means of hook I35'pivotedat 436 to extension E33, the free end of said hook ongaging pin l3? of upright 38; Frame 68isth'en brought above the cutpile loom of myinvention and-supported there in the manner" described hereina-bover Hook l35'- is then manually dis In this case the spacer means may suitably comprise-spaced cir-- l33 hinged to' ness and said reed, said 8. engaged fronrpin I37 so that support I33 drops downwards and wires 20 fall free from cross-bar iii. In this position the ends of wires 28 can be readily grasped'by the loom operator and threaded cording to the chain pattern, and weaving is continued until the second portion of cloth l I interwoven with the wires has advanced to cutter table 79;- The wires are then withdrawn from the rear (in the direction of advance of the cloth) from. .the first 6 inches of interweaving. These wire ends are then passed from below, in pairs between the individual cutters and over guide-bar 28, to between rolls 2?, 28 and the free ends are then brought onto a welding table which is brought directly behind guide-bar 29, and are butt-welded there to their other ends so as to form individual, continuous wire loops 2!]. After these continuous wire loops have been formed, the inevitably resuiting slack thereof is takenup by placing these Wires over pulleys ti. Wires 89 (Fig. 3) of said pulleys are thereupon tautly connected to rods 8 I; When the slack has thus been removed from all of the wire loops 20, frame 82 may be shifted horizontally for the purpose of adjusting the tension on wire loops 2!).

Figure 11 shows diagrammatically one-and-ahalf pattern repeats of a pile fabric made on the cut pile loom of my invention, both before and after cutting. It is of course understood that the cut pile loom of my invention is not restricted to the manufacture of this or any other pattern but may be utilized fully for the manufacture of the most varied cut pile filling fabrics including velveteens and corduroys, as well as their variations.

The foregoing specific description is for purposes of illustrationand not of limitation and it is therefore my intention that the invention be limited only by the appended claims or their equivalents wherein I have endeavored to claim cutters between which said wire loops pass on their continuous course.

2. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile "fabrics including warpwise races formed by the floating of pile filler threads over at least one warp thread, the improvement comprising at least one special sheddable harness, a plurality of continuone wire Troops threaded through said special harspecial harness being so threaded and so shedded as to insert a pair of wire loops warpwise in each of said races, and at least one cutter arranged between each of said pair of wire loops and in front, in the direction of advance of said fabric, of said reed.

specific pile 3. The improvement according to claim 1 compris ng, in addition, a compensator adapted to take up slack in said wire loops during the shedding of said special harness.

4. The improvement according to claim 3 wherein said compensator comprises springloaded members connected to said wire loops.

5. The improvement according to claim 4 wherein said spring-loaded members comprises heddles through the eyes of which said wire loops freely pass, and which heddles are free to reciprocate under spring action.

6. The improvement according to claim 5 wherein said heddles are secur d against rotation,

'7. The improvement according to claim 6 in which said heddles comprise non-circular heddle shafts which slide in correspondingly shaped guide surfaces.

8. The improvement according to claim 4 wherein each wire loop is connected to a separate spring-loaded member.

9. In a loom including warp harnesses. shuttle and reed, adapted for the weaving of filling pile fabrics including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising at least one special sheddable harness for each said race in the pattern repeat being woven, a plurality of continuous wire loops threaded through said special harness and said reed. and a plurality of cutters between which said wire loops pass on their continuous course.

10. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile fabrics including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising a special sheddable harness, heddles in said special harness, a plurality of continuous wire loops, each of which is threaded through a separate one of said heddles and through said reed, and a plurality of cutters between which said wire loops pass on their continuous course.

11. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile fabrics including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising a special sheddable harness, a plurality of continuous wire loops threaded through said special harness and through said reed, said special harness being so threaded and so shedded as to insert two wide loops warpwise .in each of said raceseach of said two wire loops passing through a different dent of said reed, and a plurality of cutters between which said wire loops pass on their continuous course.

12. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile fabrics including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising at least one special sheddable harness, a plurality of continuous wire loops threaded through said special harness and said reed, a plurality of cutters between which said wire loops pass on their continuous course and means adapted to hold said wire loops taut as they advance past said cutters.

13. The improvement according to claim 12 wherein said means comprises a pair of cooperating rolls through the nip of which said wire loops pass.

14. The improvement according to claim 12 wherein said means are also adapted to deflect said wire loops upwards as they advance past said cutters.

15. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile 5 fabrics including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising at least one special sheddable harness, a plurality of continuous wire loops threaded through said special harness and said reed, a plurality of cutters between which said wire loops pass on their continuous course, and means adapted to take up slack in said wire loops.

16.- In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile fabrics including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising at least one special sheddable harness, a plurality of continuous wire loops threaded through said special harness and said reed, a plurality of cutters between which said wire loops pass on their continuous course, and adjustable means adapted to take up slack in said wire' loops.

17. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile fabrics including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising at least one special sheddable harness, a plurality of continuous wire loops threaded through said special harness and said reed, a cutter table over which said wire loops move while enmeshed in said fabric, and a plurality of cutters arranged over said table, in the longitudinal plane of said races, between which cutters said wire loops pass on their continuous course.

18. The improvement according to claim 1'7 comprising, in addition, means adapted to pull said fabric downwards upon leaving said table.

19. The improvement according to claim 18 comprising, in addition, means for adjusting the vertical distance of said blades from said cutter table.

20. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile fabrics, including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising at least one special sheddable harness, a plurality of continuous wire loops threaded through said special harness and said reed, a plurality of cutters between which said wire loops pass on their continuous course, means adapted to hold said Wire loops taut as they pass between said cutters, and a compensator adapted to take up the slack in said wire loops resulting from the shedding of said special harness.

21. In a loom including warp harnesses, shuttle 00 and reed, adapted for the weaving of filling pile fabrics, including warpwise races formed by the floating of pile filler threads over a plurality of warp threads, the improvement comprising at least one special sheddable harness, a plurality of continuous wire loops threaded through said special harness and said reed, a plurality of cutters between which said wire loops pass on their continuous course, a compensator adapted to take up the slack in said wire loops resulting from the shedding of said special harness, and means adapted to take up the remaining slack in said wire loops.

22. In a loom including warp harnesses, shuttle and reed, adapted for the weaving of filling pile fabrics, including warpwise races formed by the special? harness and saidree'd a plurality of cutters between: which: said wire loopspass on their continuous course,- a compensator adapted to take upthe slacki'in wire loops resulting from the shedding of sai'ctspecial harness, first means: adaptedito take: up the: remaining slack in. said wire loops and second means adapted to 'hold' said wire loops tautas they pass between said cutters;

23. The improvementaccording to claim 22 wherein said compensator and saidfirst means are mounted on aireplaceable support arranged above said special: harness, said reed and said cutters.

24. The improvement according to claim 23 wherein said. support is provided at its forward in the direction of. advance: of said wire loops with ahinged extension.

. 25 In the'manuiacture -of cut pile fililng fabrics includes: intermeshing a pilefilling' with certain ground warp threads and floating it over other ground warp" threads so -as to form races at floated pile filling and thereupon severing said floated pile: filler threads the improvement comprising weaving: continuous wire loops into said races, cutting said; floats: and thereupon con- 1 tinuously returning said wire loops for reweaving and. recutting.

26. Inzthermanufactureof cutpil'e: filling fabrics which includes intermeshing a pile filling with certain ground warp threadsand floating it over other ground warp threads so as to form races of floated pile-filling and thereupon severing said floated pile filler threads, the improvement comprising weavingatl'e'ast two continuous wire loops into each of said races, cutting said floats and thereupon continuously returning said wire loops for rewea'ving and recutting.

V 27-. 'l nrthe manufacture of cut pile filling fabrics which includes intermeshing' a pile filling with certain ground 'warpthreads and floating it over other g-round' warp threads so as to form races of floated pile filling and thereupon severing said floated pile filler threads, the improvement compri'singweavingat least two continuous wire loops into each of said races, guiding the said two continuous wire loops to embrace a cutter which severs sai'd floats and thereupon continuously returning said wire loops for reweaving and reguiding to said cutters.

28'. In the manufacture of cut pile filling fabrics which includes i'nt'ermeshing a pile filling with certain ground warp threads and floating it over other ground warp threads so as to form races of floated pile filling and thereupon severing said floated pile" filler threads, the improvement comprising shedding at least two continuous wire loops into each of said. races, guiding the said two continuous Wire loops to embrace a cutter which severs said' floats, taking up the slack in said wires which ensues during shedding and thereupon continuously returning said wire loops forreweaving and regui'ding to said cutters.

OWEN D. FROST.

No references cited.

Certificate of Correction Patent N 0. 2,490,041 December 6, 1949 OWEN D. FROST It is hereby certified that errors appear in the printed specification of the above numbered patent requiring correction as follows:

Column 6, line 34, for Figs. 2 and 5 read Figs. .9 and 3; column 9, line 53, for the word wide read wire; column 11, line 23, for fililng readfilling;

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 28th day of March, A. D. 1950.

THOMAS F. MURPHY,

Assistant Uommz'csz'oner of Patents.

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