DE2106080A1 - : Circular loom - Google Patents

Description

PATENT ADVOCATE

JL.Ä ¹ * "HI. Feb. 197t tf

GEORG FISCHER AG. BRUGG, 5200 Brugg

Circular loom

The present invention relates to a circular loom.

The idea of continuous weaving is relatively old and has the idea of a loom with rotating shuttle Already at the end of the 19th century led to constructions that can be addressed as a round loom. *

The essentially still valid state of the art in the field of circular looms and their designs is for Example in the article by Dipl.-Ing. J. Schneider: "The circular loom" (Text über. 39 (1958) p. 26/33) summarized.

All these known constructions have in common that the Chain, originating from one or more warp beams, led to a tubular or radially convergent structure will*. The warp threads are leashed by strands

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a Fachmeehanismus led transversely in relation to the "Kettschlauch" or "chain star" can be pushed back and forth. The resulting endlessly revolving compartment is sufficient for some known ones Machines around the entire chain tube or chain star or only around a section of its circumference. In any case but there is a circumferential shooter in the compartment who leaves a weft thread behind. The attack of the registered Weft threads are made either through a wobble blade arranged downstream of the rifle track (Wassermann round veal machines) or by individual blade teeth, which, reaching through between the warp thread and following the shooter, the entered Shift the weft thread towards the fabric edge.

In another known round loom, the chain is made up of four or more warp beams arranged in a polygon are, first pulled inwards and over some circular deflection hoops, so that the warp threads become one common Form the center directed beam, which is essentially lies in one plane. In this area a heald lamella is provided for each warp thread, the entirety these lamellae form approximately a cylindrical structure. This machine is created by controlled up and down movement the strand lamellas in turn a compartment in which a shooter rotates. The drive of the shooter is thereby through the movement controlled by the specially shaped stranded lamellas, which

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specially shaped archer in front of you. In principle, the stop is made by inclined surfaces on individual teeth, these teeth being attached to right-angled cranked extensions of the heald lamellas. Even with this machine if, in turn, a distinct specialist mechanism, shooters and the associated control mechanisms are in place.

Apart from the relatively high technical effort, the is required in the known round looms, one of the main problems is the drive of the shooter, who is always in the round compartment, which is comparable to a cage. Another problem is replenishing the shooter with new one Weft supply or the replacement of empty shuttle.

The present invention aims to provide a circular loom, in which an actual specialist mechanism and in the subject rotating gates are not necessary.

For this purpose, the proposed circular loom is characterized in that two warp threads each emit a group of warp threads Storage devices at least the second essentially along a self-contained curve and, in the direction of the Seen warp thread, the first storage device is arranged downstream and individual, separate front

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has riddle elements, between which warp threads of the first storage device can be passed through, with means provided in a circumferential manner parallel to the self-contained curve are to weft threads between the two storage facilities alternately bring up the first set of warp threads from one and the other side and in the direction of the warp move past the second storage facility.

For a better understanding, the invention is given below purely by way of example explained in more detail with reference to the drawing. Show it:

Pig. 1-3 very schematically the principle of the conventional,

also seen in the known circular looms weaving in the direction of the weft threads,

Pig. 4-6 in a manner similar to that in FIGS. 1-3 the principle of weaving in the present weaving machine,

7-9 plan views of the arrangement according to FIGS. 6, each showing a sector of a simple embodiment of the proposed weaving machine,

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Pig. 10 is a perspective view of a circular loom, omitting all supporting and driving elements Elements,

11 shows a schematic cross section through the fabric being produced on the circular loom in the direction of the course of the warp thread seen,

Pig. 12 is a plan view of an embodiment in which 10 weft threads are inserted with each revolution,

13 shows a schematic section in the radial direction by an embodiment similar to FIG. 12 schematic representation of a stop mechanism,

Fig. 14A-14f laid transversely to the direction of the weft threads

Cut during various phases of the insertion of weft threads in order to demonstrate that the warp threads of the first group do not leave the space between the front riddle elements of the second group during the weft insertion,

Flg. 15 a schematic section through an embodiment in which .the warp threads of the first group

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ORIGINAL INSPECTED

next centripetal, d. H. run from the outside to the inside and only after the insertion of the weft thread is deflected around a deflection hoop to form a fabric tube will,

FIG. 16 shows a schematic plan view of one for FIG. 15 similar embodiment from which the compression the chain clearly shows

17 shows a construction variant of FIG. 16 with a tension compensation device for the first set of warp threads,

FIG. 18 shows an embodiment corresponding approximately to FIG. 15, in which the fabric tube produced is pressed into a flat tube and then onto a tree of goods is wound up,

'j

19 shows, in a schematic representation, a partial view of an embodiment of the proposed circular loom with drivers driven in opposite directions and

FIG. 20 shows the shape of that provided in the embodiment of FIG. 19 Carriers.

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ORIGINAL

As is known, and as shown in Figs. 1-3, is in the conventional weaving machines a flock of 1 warp thread or a chain present by a schematically indicated mechanism 2 (partial rods, distribution rods and warp thread monitor) and then through a compartment mechanism 3> (Shank) are guided with strands 4 and 5. With opposite back and forth movement of the strands 4 and 5, the warp threads divide and form a shed 6 into which a weft thread 7 is shot in each case (Fig. 2), whereupon after the change of subject (Fig. 3) the next one Weft thread 8 is shot. In this way, a fabric 9 'is created as shown in Fig. 1-5.

The processes involved in the to be described differ from this Play circular loom. These differences are to be explained on the basis of FIGS. 4-6.

A first set of warp threads j 13 (viewed from the side) is designated by 10, which are drawn off in the direction of arrow 11 from a storage device (for example from one or more trees or from individual bobbins), which are not shown in detail, and are guided over a distribution rod 12 and then run downwards. Following the distribution rod 12 there is a set of individual storage elements 14 (only one is visible in each of FIGS. 4-6), each of which has a warp thread

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15 gives up. The arrangement is made such that between each pair of adjacent storage elements 14 one of the Warp threads 13 through.

It should be noted at this point that the representation of FIGS. K - 6 is simplified in the sense that the self-contained curve along which the individual storage elements 14 of the warp threads 15 are arranged in the circular loom according to the invention has been stretched to a straight line .

On both sides of the first warp thread group 10 there is a very schematically indicated, driven holder l6 or YJ for weft thread bobbins 18 and 19, which holders 16 and 17 with the assigned weft thread bobbins l8 and I9 parallel to the course of the set of storage elements IK is driven, ie in the present case at right angles to the plane of the drawing.

In the area of the weft thread bobbin l8, a thread guide is provided for the thread from bobbin l8, the one on the left in FIGS. 5 and 6 appearing side of the warp group 10 helically engages over the set of storage elements 14, this set encompasses and about extends to the lowest point, v / o the thread of the bobbin l8 is released. As a result of the selected display type appears

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the - spatially actually helical - course of the thread guide 20 circularly around the storage elements 14.

A thread guide also goes from the bobbin I9 to the holder 17 21, the course of which is opposite to that of the thread guide

20 is. In other words, the thread guide 21 runs obliquely from the right side of the warp sheet 10 over the supply element * - elements 14 and then helically on the left side around these, to end approximately at the lowest point of the storage elements and to release the thread removed from bobbin I9.

If you now move the holder 16 with spool 18 and thread guide together with holder 17, spool I9 and thread guide 21 in relation to the set of storage elements 14, ie away from the viewer in FIGS. 5 and 6, it is easy to see that the thread guide

21 (Fig. 6) during its movement the threads I3 of the coulter 10 due to its helical shape increasingly and fan-shaped displaced to the left, with an intermediate space comparable to the classic compartment immediately below the set of storage elements Ik

22 is created in which the. Thread guide 21 his thread (from bobbin I9) as weft thread 23 stores.

As shown in FIG. 6, the thread guide 20 has the same effect, ie it displaces the warp threads 1J> of the coulter 10

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to the right, whereupon the space 22 now arises on the other side of the warp thread 15, in which the thread now descends The bobbin 18 is deposited as the weft thread 24.

It goes without saying that these processes take place one after the other, so that the thread guides 20 and 21 are arranged offset in the viewing direction of the observer, that for example above that of the storage elements 14, under which the end of one thread guide just sweeps past, long the beginning of the other The thread guide.

7-9 is now in plan view, i. H. shown in the direction of the warp thread 13 -what in Figs. 4-6 in the direction of the Weft threads 23, 24 are shown, however, the set of storage elements 14 is no longer arranged along a straight line, but as in reality, for example, along a circle.

In these FIGS. 7 to 9, the threads 13 of the first set and the storage elements 14 between them can be seen as larger dots the threads 13 run through it. The warp thread 15 of the second set (from the supply elements 14) are shown with smaller dots.

Within that formed by the entirety of the storage elements 14 Torus-shaped structure, the bracket 16 can be seen,

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ORIGINAL IKSFSCTED

outside the holder 17 * which is driven in the same direction (by a drive not shown in detail) in the direction of the arrows 25 are.

It can be seen clearly at the top in FIG. 8 how the thread guide 21 when sweeping past the stationary storage elements I ^ the warp thread 13 acted upon is increasingly displaced inward (corresponding to the state shown in FIG. 5), while in FIG. 8 at the bottom the thread guide 20 coming from the inside carries the threads 13 displaced to the outside, roughly corresponding to the state shown in FIG. 6.

It goes without saying, however, that not only one weft thread bobbin 18 or 19 is arranged on each of the holders 16 and 17, which are circular in the present example, but preferably a whole set of "evenly distributed spools", as in FIG. 9 with 18 'and is indicated 18 'and 19 · and 19 ". from each of these weft package is helical, the storage elements lh encompassing thread guide 20', 21 ', 20", 21 "from, said alternate a thread guide from outside to inside the reservoir elements surrounds a few The offset of the inner weft thread bobbins with respect to the outer weft thread bobbins is expediently chosen to be as small as possible, with the result that each of the storage elements 14 is always encompassed by more than one of the thread guides

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is, so that a special storage of the storage elements is unnecessary, since each of these storage elements 14 is always on two or three points on its circumference is held by the thread guides passing by. A turning of the storage elements 14 with the brackets 16 and 17 is largely inhibited by the fact that between adjacent storage elements each one (or more) of the warp threads 1J5 passes through it, all of which are under a certain tension originating from the goods haul-off on the one hand and the chain brake on the other. The storage elements 14 are also stored, which will be pointed out at the end of this description.

FIG. 10 shows schematically and in perspective what has been described with reference to FIGS. 5/6 and 8. You can see them warp thread sheet 10 consisting of a multiplicity of threads 13, coming from any warp supply over the annular distribution rod 12, down between two each the storage elements 14 passes through. Wan also recognizes the inner holder 16 with a weft bobbin 18 and the associated Thread guide 20 and the outer holder 17 with a weft thread bobbin 19 and the associated thread guide 21.

It goes without saying that all of the storage elements form a torus, only a small part of which is visible in FIG. 10

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is. In Pig. 10 is shown particularly clearly how the starting from the inner bracket, -and in the sense of Arrow 25 rotating thread guide 20 helically over the storage elements 14 reaches around, leads down on the outside and in the area of the exit point of the warp thread 15 of second group releases the weft thread 24. Likewise the thread guides 21 emanating from the bobbin 19 from the outside via the storage elements 14 and then around them inside to likewise to release the entrained thread 23 in the area of the exit point of the warp thread 15 from the storage elements l4.

FIG. 11 shows in section through the fabric how the fabric is produced on the circular loom described. One recognizes on this FIG. 11 from left to right the alternating arrangement of the warp threads Υ $, 15, the thread guides 20, 21 as well as sweeping past and in each case displacing the warp threads IJ

which is inserted by these thread guides from this FIG. 11 can also be seen

5n weft threads 24 and 2j5. that at the tissue that is on

the circular loom described arises, there is no stop edge in the conventional sense, but that on each one Weft thread after a few warp threads the next weft thread f 61 gt.

This means that the course of the weft threads in the resulting Fabric hose with a multi-thread endless screw

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ORIGINAL INSPECTED

line can be compared, the number of gears being the total number the thread guide or the weft thread bobbins corresponds.

12 and 13 are in simplified elevation and in simplified partial section design variants shown, in which the inner weft thread bobbins are arranged centrally.

Fig. 12 again shows the annular arrangement of the storage elements 14, which arrangement of the rotating holder is surrounded by five weft bobbins 19. Centrally inside the ring-shaped arrangement is a set of five on top of each other arranged weft thread bobbins Il8 arranged. A thread guide 120 extends from each of the weft thread bobbins 118. There are five thread guides 120 are provided, which initially radiate lead away from coils 118 and then helical and inj related following the direction of rotation, overlap the storage elements, then leads around on the outside and then reaches under the supply elements Ity from the outside. Between each of the thread guides 120 runs one of the thread guides 21, which are similar, however run in opposite directions.

FIG. Ip shows the construction of the embodiment of FIG. 12, but with only yier inner and four outer thread guides

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ORIGINAL tNS? CCTED

shown schematically. One recognizes the supply elements 14, around which on the one hand the thread guides 120 and coming from the inside lead around the thread guides 21 coming from outside.

The four weft thread bobbins 118 are fastened on a rotating holder 116, which in turn also carries the thread guides 120 projecting radially. The holder 116 forms the hub of a rotatably driven hollow shaft 26 through which a stationary shaft 27 passes. At the lower end of the rotating hollow shaft 26, a flange 31 is attached, which carries one or more cranked arms 32, 33. At the free end of the cranked part 33 of this boom, a wheel Jk is rotatably mounted at 35, which wheel forms part of a stop ^{mechanism 1} . The other part of this stop mechanism is attached to the shaft 27 and has a stop tooth holder 28 with a circular circumference, on which a number of stop teeth 29 corresponding approximately to the total number of storage elements 14 are hinged and can be spread against the action of a return force. If the wheel 34 now sweeps the set of stop teeth, they experience a deflection in the direction of the arrow in the area of the wheel 3 ^ , ie to post. If a stop mechanism is necessary at all

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is, for example, because of a desired minimum density of Weft threads, a single or multiple revolving wheels 3 ^ can be provided. In the embodiment according to FIG. 12 there would be a maximum of ten, in the case of the embodiment 13 a maximum of eight wheels 34 are possible, each are arranged immediately behind the outlet of one of the thread guides.

From FIGS. 14A-14F it can be seen that although sections the warp thread 13 of the first group over and over again are displaced innermost or beyond the outermost edge of the storage elements, the arrangement of the thread guide in such a way it can be made that always other sections of the warp threads are necessarily guided between the storage elements 14 remain so that the warp thread 13 during the weaving process not quite pushed out of their position between the storage elements 14 will. Accordingly, the problem of the re-entry of the warp threads 13 between the storage elements 14 does not arise either.

In FIGS. 14A-14F, the course of the warp thread is in each case shown, the look in different reference positions to the thread guides 21 or 120 is located. These various reference positions are indicated in Figure 12 by the lines A-F and extend about a fifth (there are five pairs in Fig. 12

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provided by thread guides) of the scope of the loom. In the remaining four fifths of the circumference is the course of the warp thread 13 between the storage elements again same, d. H. FIG. 14F is again followed by a course corresponding to FIG. 14A.

Furthermore, FIGS. 14A-14f show that the free length of the warp threads IJ between the distribution bar 12 and the fabric edge remains practically constant ^{regardless of the respective position of the thread guides 21, 120 or 21, 120 f.}

In FIG. 14A, the thread guide 120 has displaced the warp thread 13 into its outermost position, while the next following thread guide 21 coming from the outside already begins to displace the warp thread 15 further up inwards again. In Fig. 14B have the two thread guides one, seen with respect to the center of the storage element 14, approximately diametrically opposite one another Position reached, whereby the warp thread 13 assumes a diametrical course. In Fig. 14C is the thread guide 120 arrives at the lowest point of the storage element, while the following thread guide 21 approaches the innermost point, where it is indicated by the arrow 120 'that the following thread guide is about to approach the warp thread 13 from the inside. In Fig. 14D the warp thread 13 has an approximately mirror

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The course of FIG. 14A, in FIG. 14E one a mirror image of that of FIG. 14B and a mirror image in FIG. 14F to Fig. 14c.

In Fig. 15 is an embodiment of the circular loom Shown with a centripetal warp course. One recognizes the torus-shaped arrangement of the storage elements 14, the warp thread 15 directed towards the center of the torus. Outside around the torus-shaped arrangement is the ring-shaped one Distributing rod 12 arranged, the warp thread 13 of the first Flock 10 centripetally inwards and between adjacent distribution elements passes through. In this embodiment, the holder 18 and the holder 17 are annular, wherein the one holder is above, the other below the torus-shaped arrangement of the storage elements. This arrangement is particularly favorable for the drive and storage of the brackets.

The holder 16 in turn carries a set of weft thread bobbins 18, of which only one is shown on the outside left. From each of the Weft thread bobbins 18 go out of a thread guide 20, which extends helically under the storage elements into the area a ring 37 leads, which in its function about the breast tree is comparable to a conventional weaving machine, d. H.

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around which the finished woven round fabric increases the warp thread density, is pulled down as shown.

The lower holder 17 also carries a set of weft thread bobbins 19, of which in Pig. 15 only one is shown. A thread guide 20 extends from each weft thread bobbin 19, which grips around the storage elements 14 on the outside and above and then the weft thread also in the area of the ring 37 23 gives up.

The mode of operation of the embodiment shown in FIG. 15 is largely similar to that of the embodiment according to FIGS. 4-10 the individual threads 13 of which are not displaced outwards or inwards (as in FIG. K - 10), but upwards or downwards with respect to the torus-shaped structure when the holders 16 and 17 and the co-rotating yarn guides 20, 21 are rotated. At the same time, the radial course of both the warp thread 13 and the warp threads 15 towards the ring 37 results in a considerable increase in the warp thread density in the fabric tube G.

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This compression of the warp threads can be seen particularly clearly from FIGS. In these FIGS. 16 and 17 one can see schematically the warp threads 13 of the first set, which pass between the storage elements 14 and run towards the ring 37 and are drawn off over its inner diameter. Also shown, though only schematically, the holder 16 is for a weft yarn bobbin with the adjunctive yarn guide 20 and the bracket 17 21 having the associated thread guide in this embodiment originate the warp thread 13 of the first group of individual coils 38 * di ^e, for example, in A two-row arrangement are arranged on an annular support frame 39 which is arranged around the entire arrangement of the storage elements lh .

13, It is advisable that the warp threads / are under as constant a tension as possible. This means that the free length of the warp thread 13 between its origin and the ring is also adapted to the alternating displacement upwards and downwards. In the illustrated embodiment, this condition is taken into account (FIG. 17) in such a way that the individual warp thread bobbins 38 are held in grooves 41 in the support frame 39 such that they can be moved radially between an inner and an outer limit position, with a spring system (not shown)

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the coils 38 normally urges against the outer limit position. Each of the holders of the bobbins 38 is also radially aligned externally protruding pinger 40, as shown in FIG. 17, assigned, In this exemplary embodiment, there is also a synchronous and in the same direction (arrow 43) with the weft thread holders the center of the machine rotating wheel 42 is provided, the circumference of which rolls over the free ends of the fingers 40 and these pushing inwards at the same time. This ensures that - without pulling more thread from the bobbins 38 - the warp thread 13 through the thread guide 20 and 21 upwards or can be displaced downward beyond the storage elements 14 without experiencing a significant increase in voltage. " It goes without saying that the number of wheels 42 is the same as the total number of thread guides 20 and 21. The radial Displacement of the coils 38 instead of with wheels 42 take place by means of a revolving cam or gate control.

Finally, FIG. 18 shows a further embodiment variant which, in principle, corresponds to the embodiment of FIG and 16 corresponds. One recognizes the warp thread bobbins 38 which are arranged on the support ring 39 and which the warp thread bobbins 38 between the supply elements th 14 warp thread I3 pass through. Are shown likewise, the holders 16 and 17 with the weft thread bobbins 18, 19 and the thread guides 20, 21 leading to the ring 37

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Storage elements are between two ring-shaped half-shells 51 * 52, which are made up of individual magnet segments 55 could be. The magnet segments 55 serve for the magnetic suspension of the storage elements 14 in the sense that their own weight does not need to be carried completely by the thread guides 20, 21. Between the upper half-shell 51 and the lower one Half-shell 52 remains an outer gap 53 and an inner one Gap 54 through which the thread guides 20, 21 enter and exit again.

Downstream of the ring 37 is a pair of take-off rollers 44, 45, which presses the resulting fabric tube into a flat tube and a pair of comb rollers 46, 47, between which the Weft threads in the fabric tube are compressed in the withdrawal direction before the round fabric G is placed on a conventional Viarenbaum 50 is wound up.

In the embodiment of FIG. 19 one recognizes the individual again Storage elements 14 for the warp threads 15 of the second set. While in the previous embodiments, the entirety of this Storage elements formed an uninterrupted whole, they are in this embodiment still along an in arranged in a closed curve, but split up in sets, with between two successive sets in each case

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a loophole is provided. In Pig. 19 is a set 60 of storage elements 14 and a set 61 of storage elements are shown, between which a gap 80 remains free.

Each of the sets of supply elements is preceded by a separate supply for the warp threads 15 of the first group. In Pig. is this supply with 62 for the set 60 and with 6} for the Sentence 6l. These storage devices can be single coils his or small warp beams.

In this embodiment, the weft supply does not circulate, but is arranged in a stationary manner, namely in the form of the bobbins 64 and 65, which are each assigned to the set 6O and 6l and from each of which a warp thread 66 or 67 is withdrawn.

To these weft threads' alternately from one and from the on the other side to the first warp thread sheet and to lead past the respective sets of storage elements Driven drivers are provided, the movement path of which runs along and around the storage elements 14. In Fig. I9 a driver 68 and a driver 69 can be seen.

The driver 68 is in the interior of the ring formed by the entirety of the storage elements lh on a drive element

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116 (Flg. 20) attached, which is approximately the carrier 16 of FIG. 4 10 can correspond. This drive element II6 moves the driver 68 in the direction of arrow 70. As can be seen from FIGS. 19, 20, The driver 68 engages over coming from the drive element 116 in a helical and, in the drive direction seen, trailing course as well as with play the supply elements 14.

The driver 69 is on the outer side of the whole of the storage elements 14 formed ring on a roughly the Carrier 17 of Fig. 4-10 corresponding drive element 117 (Fig. 20) and moves in the direction of arrow 71, that is, in the opposite direction to the driver 68. Its shape, based on the drive element 117 *, can be described approximately as follows. First If it runs a short distance against the movement, it then bends towards the center of the circular loom and reaches under the path of movement of the free end of the driver 68 through (Fig. 20), then in a helical manner between the driver 68 and the supply elements 14 to reach around the supply elements 14 and at their lower area to end on the side facing the center of the machine.

When operating this embodiment, the following operations are to be carried out observe: the driver 68 initially displaces the warp thread

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of the first group to the outside and at the same time takes the weft thread 66 with it, which, because it is held in place by the fabric, is pulled off the bobbin. It slides in the direction of arrow 78 along the inner side of a specially shaped guide rail 72 which surrounds the warp thread supply 62. As soon as the driver 68 has passed the set 60, ie when it is in the gap, the weft thread 66 slips away from the driver 68, at the same time being lifted over the apex 76 of the guide rail J2.

The drivers 68 and 69 intersect in the gap 80. Therefore, there must be no warp threads at this point of reduction. because they would be sheared off by the crossing drivers.

Then the driver 69 comes into the area of the set 60, and the opposite now takes place along set 60, which is shown on the right in FIG. 19.

The weft thread 67 slides on the side visible in FIG. 19 and in the direction of arrow 79 along the rail 73 until it over the apex 75 is raised. At the same time, the weft thread 67 is on the side of the sentence facing away from the viewer 6l carried along by the driver, which at the same time puts the warp thread 15 on the side of the storage elements facing away from the viewer repressed.

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Since the sets 60, 61 always in an alternating order of a driver in one and a driver in the other Direction are coated, the respective weft thread of the section in question is always guided back and forth and slipped away the driver * when it leaves the relevant section. As a result of the special shape of the guide rails 72, 73, the weft thread changes immediately to the other side of the warp thread supplies and is then immediately caught by the driver coming from the other direction.

From what has been said, it is easy to see that the resulting tissue arises in as many webs as there are gaps between the sets of storage elements 14 are present. In this case, as shown in FIG. 19, each fabric web becomes a selvedge thereof Have structure, like a fabric made on a conventional flat loom.

The embodiments described so far are used exclusively Plain weave fabric. It is understood, however, that other types of binding on the described Circular loom can be produced. Relevant for the to be produced binding is the order of the warp threads of the first and second set and the sequence of the one after the other to

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Mitaehaer or thread guide arriving at the church.

Kas relates to the mounting of the individual Vorratseleaente 14, vird refer to the older patent application P 20 43 956.9, is described in a Flachwebmaschine, which according to a similar principle.

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Claims (9)

Claims Circular loom, characterized in that of two each a group of warp threads (1J5, 15) dispensing storage devices (58, 14) at least the second substantially longitudinally a self-contained curve and, seen in the direction of the warp thread, following the first storage device is arranged and has individual, separate storage elements (14), between which warp thread (15) the first storage device can be passed through, being driven in a revolving manner parallel to the self-contained curve Means (20, 21; 68, 69) are provided to alternately move weft threads between the two storage devices bring it up to the first set of warp threads from one side and the other and in the direction of it to move the course of the warp past the second storage device. 2. Circular loom according to claim 1, characterized in that the rotating means are thread guides (20, 21; 68, 69) which helically encompass several supply elements (lh) for the warp threads (15) of the second group. 109839/1063 3. Circular loom according to claim 2, characterized in that successive thread guides (20, 21) in the direction Opposite to one's own revolving movement are coiled. 4 ·. Circular loom according to claim 2, characterized in that that each of the, storage elements (14) for the warp threads (I5) the second group, regardless of the position relative to the thread guides, always in the area of two or more consecutive ones Thread guides (20, 21) is. 5. Circular loom according to claim 1, characterized in that the storage elements (14) for the warp thread (15) of the second group are arranged along a circle, while the storage device (38, 39) for the warp thread (13) of the first family is arranged around the circle. 6. Circular loom according to claim 1, characterized in that the storage elements (14) for the warp threads (15) of the second group are arranged along a circle, while the warp threads of the second group have a surface of revolution form whose base line is the circle. 109839/1053 7. Circular loom according to claim 4, characterized in that that all thread guides (20, 21) are driven in the same direction. 8. Circular loom according to claim 5 or 6, characterized in that that the storage elements (14) for the warp threads (15) of the second group are individually identical to each other and groups (60, 61) separated from one another by gaps (80) are arranged along the circle, each Group a separate supply (62, 63) for the warp thread (13) is connected upstream of the first group and with at most as many thread guides (68, 69) are provided as there are gaps (80) between the groups of which Thread guides one half in opposite directions with respect to the other half is powered. 9. Circular loom according to claim 2, characterized in that each thread guide (20, 21; 68, 69) has a supply of weft threads (18, 19; 64, 65) is assigned. 1st February 1971 109839/1053 Blank page