US2002091A - Guiding or spacing of yarns in warp form - Google Patents

Description

y 1935- J. JABOULEY 2,002,091

GUIDING OR SPACING OF YARNS IN WAR? FORM Filed Feb. s, 1953 Patented May 21, i935 a ,UNITED STATES prrrlily'r oFFiCE mesne assignments, to Celanese Corporation of Am erica, a corporation of Delaware Application February 8, 1933, Serial No, 655,697 In Great Britain FebruaryZO, 1932 1 solaims. (01. 139 -13) This invention relates to textile appliances, and remain stationary while the shuttles revolve in particular to appliances for spacing threads arabout the axis of the loom, and in looms in which r ed in warp form. the warps themselves rotate. Thus, for example 'Ifheobject of the invention is to provide a it may be used in looms of the type described in .5 thread spacingdevice which is simple in char- U. S. applications S. Nos, 629,913,- 629,914 and '5 acter andpermits ready threading-up while of- 629,915 all filed 22ndAugust,-.1932, and, especially fering a smooth and unobstructed passage for the when employed in conjunction with the warp thread. p a spacing finger described in U. S. application S. fThB device according to the invention com- No. 629,916 filed 22nd-August, 1932, is of great 10 prises .a coiled 7 spring whose coils are spaced service in. enabling very. even fabrics to be woven 10 apart at a distance appropriate to the density on circular looms.

. of'the threads in the warp, so that the threads The invention will now be described in greater can be passed through the space between the detail with referenceto the accompanying drawcoils or through the coils themselvesand beguided ing, which shows the spacing device according v thereby. The device may be used either with to the. invention mainly with reference to its use 1 a single thread for each coil or coil space, or in acircular loom of the type described in U. S. if desired two or more threads may be led toapplication S. No. 629,914. Sufficient of the loom gether through each coil or space. described therein is shown to illustrate the appli- The coiled spring may be mounted in any con-- cation of the invention.

venient manner, for example by being bound with According to the drawing: 0

cord or wire to cheer more rods adapted to be I Figure 1 is a pa rs i n elevation of mounted in the machine or device in which-the the device according to the invention;

p g is to be used. If desired, means may be .Figure 21s a cross-sectionalelevation in larger provided for holding the spring-in a more'or less Scale of a detail-10f Fig.1;

25 extended condition so as'to provide for a varia- Figures 3 and 4 are elevation and plan views 25 tion in the warp density or in the warp width. respectively showing'the position of the warp Thus, the ends of the spring may be secured to threads relative to the spacing device; the support by screws adjustable in position along Figure 5 shows in plan an alternative detail of the supportso as tomaintain the spring. at any the invention; and

desired length and with any desired coil spacing. Figures 6 and '7 showin elevation. and part 3 The warp spacing device according to the insectional plan respectively further alternative devention may be used as a spacing reed in a large tails of the invention. H a number of textile machines. For example it may As shown'in Figure 1, warp threads lfl upwindbe' employed. in beaming, sizing or other maing from awarp beam (not shown) are divided chines in which threads are treated as a warp. into two sheets ll, l2, by a circular lease-rod I3 The device is, however, of particular service in from which they proceed downwardly in divided circular machines in which a warp of threads form through a reed l4 to the fabric [5. Shedis used in cylindrical form, as for example in ding is performed in the manner described in circular looms. Thus, the coiled spring spacing U. S. application S. No. 629,914, the reed M be- 40 device may be used to guide warps proceeding ing so constructed as toprovide free passage for 40 from a set of beams or sectional beams in a circertainofthe warps along-the reed spaces, while cular loom, the device enabling the threads to allowing only a limited movementto the remainbe guided as an even sheet or sheets underunider of the warps. Rotatable discs 20, 2|, arform tension to the point at which weft is inranged at-diiferent points roundthe loom inside serted. In such a machinea single spring may and outside the warp circle press against the 45 extend round the whole periphery of the loom, warps, sheet I! of which is free to move in the but more conveniently, the spring is formed in reed spaces andis pressed alternately inwardly sections each extending over say a quarter of and outwardly to separate it from sheet l2. A the loom periphery. shedding motion is thus commenced, and is com- The spring is preferably mounted in such a pleted by the foremost end of a tapering boat- 50 manner as to be readily removable so that warps shaped shuttle 22 which enters between the of different density can readily be accommodated warps and forces them apart.

by interchange of springs. On leaving the lease-rod l3 the threads of the The spacing device according to the invention two sheets H and I2 are engaged and guided by 65 may be used both in looms in which the warps the coils of a coil-spring 23 which extends round the loom. The tension in the spring 23 is such that the coils are spaced apart at a distance appropriate to the density of the threads in the warp, so that the threads I I and I2 (shown in elevation in Figure 3, and in plan in Figure 4) pass betweenthe coils and cannot become dislodged therefrom. In Figure 4, two threads ll, 12 per coil are spaced by the spring, but any number of threads, according to the density of the warp and/ or the density of the spring coils, may enter each coil.

The spring 23 is bound at 30 or otherwise joined to a circular round rod 24 extending round the loom. The combination thus formed is maintained in position by two further circular round rods 25, 26, the upper, 25, of which is welded to the outer edge of an annular. plate 21, extending round the loom, while the lower 26, is joined to and carried by arms 28 (Figure 2) disposed at various points around the loom. The rods 25, 26 are nipped into the neck formed between the spring Bend the rod 24, by bolts 29 which clamp the annular plate 21 and the arms 28 to a supporting plate 32, whichis suspended from an adjustable pillar 33 slidable in a sleeve 34 into which it is locked in position by a bolt 35. As many pillars 33 and sleeves 34 as are required to support the weight ofthe spacing means are suspended at points round the loom from a plate 36 outstanding from the central shaft 31 of the 100111. The coil-spring .23 is thus adjustable in height relative to the reed l4 and may be adjusted to suit different types of warps being woven.

The lease-rod i3 is supported at points around 7 its circumference by hook-like members 38 (one only shown) pivoted at 39in a slot 40 formed in a member 4! upstanding from the plate 2?. The slot 40 in the member 4! enables the hook'to be adjusted in height in order'to regulate the height of the lease-rod l3 relative to the reed IA.

The coil-spring 23 may be formed in sections around the loom, (conveniently in quarterv sections) or may be continuous throughout its length. In the latter case the ends are soldered or otherwise joined together in the manner shown in Figure l, a block of solder, or similar material, being run a short distance into the endsv of the spring. 1

Alternatively, the extremities of the spring may be formed into ring-like projections 42 (Figure 5) which are secured in overlapping relation by a bolt 33 housed within a slot M in a circular member 45 extending round the m. This method of securing the ends of the spring is particularly suitable when the spring is mounted in sections (e. g. four) round the loom, as the section can simply and easily be replaced by a new section orone with different coil spacing. In order to provide support for the spring sections, the member 45 to which the ends of the spring are secured is formed with an outstanding rim 46 along its lower edge; against which the spring bears.

The spring is thus supported by the rim 46 -tance between the extremities is not so great as tointeriere with the even spacing of the warp threads. Short distances, however, do not affect the even spacing of the threads within the fabric as any uneven effect is corrected readily when the threads are passing through the reed l4.

Figures 6 and 7 illustrate methods of supporting and adjusting a straight coiled spring adapted to space and guide a flat sheet of warps.

The extremities 4'! of the spring are formed into ring-like projections as explained with reference to Figure 5, and are secured by a bolt 48 to a supporting member 49 either slotted, as indicated at 59 onthe left hand side of- Figure 6, or perforated, as indicated at 5! on the right hand side of'Figure 6. Thus, by changing the position of the bolt 58 along the slot 50, or to another hole iii, the spring can be tightened or slackened as required in order to accommodate a change in the density or in the width of the warp being woven.

In order to support the spring along its length the membertfi is provided with an outstanding rim 52. I

What I claim and desire to secure by Letters Patent is: t

1. In a circular loom, warp spacing means conprising a coil spring extending round the loom, so arranged that the. coils are spaced apart at a distance appropriate to the density of the threads in the warp, a supporting rod extending round the loom concentric with said spring, means connecting the spring to said supporting rod, and support ing means adapted to nip into the space between said rod and said spring to hold said spring in position in the loom.

2. A warp spacing device for circular looms; comprising a supporting rod in the form of a ring extending round the loom, a coil spring extending round the loom and lying exteriorly of the sup porting rod and in-contact with said rod, the coils of the spring being spaced apart at a distance appropriate to the, density of the threads in the warp, and tie means binding the coils of the spring'to the rod.

3. A warp spacing device for circular looms, comprising a supporting rod-in the form of a ring extending round the loom, a coil spring extending round the loom and lying exteriorly of the supporting rod and in contact with said rod, the coils of the spring being spaced apart at a distance appropriate to the density of the threads in the warp, tie means binding the coils of the spring to the rod, and an adjustable mounting for thespacing rod to provide for adjustment of the position of the spring within the loom.

JOANNY JABOULEY.

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