Abstract: A core wrap system is provided in which a core strand and wrap strands spaced from said core strand on each side of said core strand are passed from the nip of a pair of rollers to a stationary support surface that is outwardly, downwardly curved, and which includes an open channel therein which is outwardly, downwardly curved along the surface; wherein the core strand is passed through the channel from the nip; wherein the wrap rovings are passed from the nip to converge upon and wrap around the core strand in the channel to form wrapped yarn in the channel; and wherein wrapped yarn then is passed through a ring traveler to a wind-up spindle.

Abstract: A core/wrap yarn forming system comprising two or more channels extending outwardly from the nip of the front draft rolls of a ring-spinning system; wherein each channel's entrance is closely adjacent to the nip; wherein the entrances are spaced apart from one another; wherein the channels merge with one another at the exit from the device; wherein the first channel is essentially straight throughout its length, and is perpendicular to the nip; wherein each of the other channels is curved to guide the strand therein in a convex pathway with respect to the first channel, and converge inward to the end of the first channel. The core is supplied through the straight channel, while one or more wrapping strands pass through the curved channel or channels, and wrap around the core where all the channels merge. The wrapped yarn then is passed to an ordinary ring traveler and wind-up spindle of a ring-spinning assembly.

Abstract: A core/wrap yarn is formed on a conventional ring-spinning yarn system by including a gripper nip immediately downstream from and closely adjacent to the front roller nip of the system; feeding a core strand and at least one wrap stand on each side of the core strand from the front roller nip to the gripper nip, wherein the wrap strands are spaced from the core strand at the front roller nip and converge with the core strand in the gripper nip to wrap around the core strand in the gripper nip so as to form wrapped yarn which then is passed through a ring traveler on to the wind-up system.

Abstract: The present invention relates to a process for start spinning or piecing at least two yarns of fibers, which process includes forming strands for start-spinning or piecing by introducing a continuous filament into each roving, false twisting the strands, assembling the strands at a given point of convergence, cutting each filament upstream of its introducing point, removing the filament from the strands and twisting the strands without the filament to a twisted yarn. This process serves to overcome the problem of breaking at the start of the spinning. Also by the present invention, the problem of breaking while twisting the assembled intermediate yarns to a twisted yarn is avoided by introducing a false twisting of the assembled intermediate yarns, supplementing to the false twisting of the intermediate yarns, before the last twisting.

Abstract: A top bedsheet, bottom (fitted contour) bedsheet, or pillow case is produced by circularly knitting, in a jersey knit configuration, a sheath and core yarn into a fabric. The sheath fibers comprise short staple fibers such as cotton or comparable cellulosic fibers, and provide at least 50 percent of the yarn and preferably about 68-83 percent of the yarn. The core fibers are long staple synthetic fibers such as polyester, and are completely covered by the cotton so that the product has smoothness of hand. The fabric has a weight of approximately four ounces per square yard, and is finished so that it has a relaxed shrinkage of about five percent in both the length and width dimensions. The sheath and core yarn configuration is produced by passing a sliver of sheath fibers and a roving of core fibers through a trumpet, and then through the rear rolls, apron, and front rolls of a drafting apparatus to produce a drafted composite sliver, and then mechanically imparting a twist to the drafted composite sliver.

Abstract: A fine heterogeneous hybrid spun yarn is blended from electrostatically conductive staple fibers and electrostatically non-conductive staple fibers so that the yarn is electrostatically conductive only over short discrete lengths. When used in pile fabrics, such as carpets, the fine yarn is introduced with at least some of the carpet facing yarns during the carpet making operations. The resultant carpet structure substantially eliminates electrostatic shock to a human walking across the carpet and approaching a ground such as a light switch, radio, or another person. Such a carpet does not constitute a dangerous floor covering.The unique heterogeneous hybrid spun blended yarn is achieved by process techniques completely contrary to accepted blending practices.

Abstract: This invention relates to a spinning installation for making fiber spun yarns, the yarns comprising a central core of discontinuous fibers covered with an external sheath also of discontinuous fibers. The fibers forming the core and the sheath come from a common drawing system at the outlet of which they are projected onto two condenser elements. The assembly is subjected to the action of a false twist spindle. The condenser element on which the fibers forming the core are projected comprises a rotary guide associated with a mobile roller which blocks the extension of twist communicated by the false twist spindle.

Abstract: A process for manufacturing reinforced false twist yarns includes employing braking rolls, drawing bands, pulling rollers, twisting rolls, and yarn guides to manufacture a reinforced false twist yarn from first and second fiber rovings and from a continuous fiber yarn. The yarn guides are separated from one another such that, when the first roving is combined with the second roving and continuous fiber yarn, untwisted regions of the first fiber roving are in substantially non-overlapping relationship with untwisted regions of the second fiber roving.

Abstract: A ring spun yarn having good core cohesiveness, and complete sheath covering, the sheath comprising first fibers, such as cotton, and the core comprising second fibers having distinctly different properties than the first fibers, such as polyester, is produced. A sliver of first fibers and a roving of second fibers are fed to a drafting apparatus so that the roving is at the exact center line of, and on top of, the sliver. The roving and sliver are passed together through the rear rolls, apron, and front rolls of the drafting apparatus to produce a drafted composite sliver. Twist is imparted mechanically to the drafted composite sliver to produce a roving having a core and sheath. Then the roving is further drafted and twist is mechanically imparted thereto, producing a final core/sheath yarn.

Abstract: A bound spun yarn comprising substantially twistless core fibers and wound fibers wound spirally around the core fibers. The core fibers and the wound fibers have colors different from each other and the number of the wound fibers vary randomly in a longitudinal direction of the yarn.

Abstract: A novel roving, and spun yarn produced from the roving, have a core and a sheath arrangement with substantially 100 percent of a first type of fiber in the sheath, and for a second type of fiber having distinctly different properties than the first fiber, about 75-90 percent in the core and about 25-10 percent in the sheath. Yarns having a cheaper fiber in the center (e.g. polyester) and a more expensive fiber on the outside (e.g. wool), or one having a higher strength core fiber and a more luxurious sheath fiber, can be produced. A sliver of first fibers and a distinct sliver of second fibers are fed in generally parallel paths. The slivers are continuously drafted to produce two distinct drafted slivers, and the path of at least one of the drafted slivers is changed so that the two slivers proceed in intersecting paths, and at substantially the same speed. The first fibers are continuously caused to wrap around the second fibers, with an angle of intersection between the two paths in the range of 60.degree.

Abstract: A method for manufacturing a cotton core yarn which comprises introducing a tension into a core yarn, and bringing a cotton yarn together with the core yarn, said core yarn having a higher tension than that of the cotton yarn and said cotton yarn being supplied at a higher speed than that of the core yarn, whereby the core yarn forms the center fiber and the cotton yarn uniformly covers the surface of the core yarn.

Abstract: A method of obtaining a core-spun yarn, according to which the fibers are subjected to a momentary false twist, and elementary fibers are projected on the spun yarn in the upwardly twisting area by means of a movable surface. According to the invention, all of the fibers (core and sheath) are subjected to the action of a common drawing system. After drawing, part of the fibers are delivered to the guiding surface to form the sheath while the other part of the fibers, which will form the core, is moved away from said surface and returned in contact therewith downstream of the zone in which the first part of the fibers are delivered. It is possible with this method to obtain, from only one supply, a variety of yarns of which the core and sheath can be composed of fibers of the same or of a different nature.

Abstract: A method and apparatus for producing a fancy yarn, in which a core and effect yarn 5 are fed along a path to a false twist device 6 and a binding yarn 4 is fed via a rotating component 1 adjacent the path, the component rotating about an axis transverse to the path, and having a yarn guiding portion 3 radially spaced from the axis, whereby the binding yarn is caused to perform a reciprocating, oscillating motion with respect to the core and effect yarns.

Abstract: A unique process for producing torque-free or balanced yarns of staple fibers with glass filament cores is disclosed. Staple fiber roving is fed through a drafting system. Glass filament is fed into the center of the staple fiber just prior to entering the front rolls of the drafting system. Sufficient twist is applied to the fiber around the glass filament using the ring spinning process and two or more of these yarns are ply twisted in the opposite direction of the spinning direction to firmly lock the staple fiber to the glass filament. The twist multiplier range for spinning is between 3.0 to 3.5 and for plying is betwen 3.5 and 4.5. Cotton fiber is the principle fiber used with a glass filament core. The resulting yarn can be tied by knotting onto existing loom beam ends when breaks occur during weaving without shearing of the yarns.

Abstract: Process for the manufacture of a fancy yarn having stable protuberances along its length, wherein at least one effect yarn is fed onto a core yarn at a greater speed than the latter, the protuberances thus produced and the core yarn being bound together by the combination of feeding of the effect yarn in an oscillating manner relative to the core yarn and increasing the twist of the assembly passing through a simple false twist device, without the need for heat setting means.

Abstract: The present invention relates to a process for covering an elastane yarn stretched by three to five times, with a covering yarn, characterised in that it consists:in a first phase, in covering the drawn elastane yarn with the covering yarn with a twist of the order of one third the usual twist of single-covering, and in receiving this covered yarn on a bobbin,then, in a second phase, in taking up this bobbin of covered yarn on a twisting member to communicate thereto an additional twist until a twist which is equal to the usual twist of single-covering is obtained on this yarn.

Abstract: A system for helically wrapping a tape comprises tape twisting means, and, upstream of the twisting means, means for shaping the tape. The shaping means comprises a body over which the tape passes, the body having a first surface of at least partially cylindrical form and an outwardly curved edge surface extending along a side of the first surface. Tape supply means is arranged to feed the tape onto the first surface such that the tape is inclined to a plane at right angles to the axis of the first surface whereby an edge of the tape engages the curved edge surface and is thereby shaped in order to initiate wrapping. The system is particularly suitable for wrapping a paper tape around a nylon core.

Abstract: An elastic covered yarn and a method and apparatus for producing the same, wherein an elastic yarn is wrapped in stretched condition around a nonelastic yarn as a core yarn, the contracting action of the stretched elastic yarn causing the elastic yarn to take the position of the core yarn, covered with the nonelastic yarn.

Abstract: Fiber sheaths are drawn between a pair of drawing cylinders and continuous filaments are introduced upstream of the drawing cylinders to form two strands which are twisted together at a convergence point upstream of a winding mechanism. The tension of the strands is regulated, the strands are wound to form a filament, and the filament thus formed is retwisted on a spinning jenny.

Abstract: A multicolored spun yarn is provided which comprises a substantially untwisted bundle of core staple fibers and a plurality of staple fibers wrapped helically around said bundle of core staple fibers; the bundle of core staple fibers comprises a plurality of staple fibers which are different from each other in color tone or in dyeability, and the yarn having at random intervals portions wherein staple fibers of one kind cover up staple fibers of another kind, and the method of manufacturing the same.

Abstract: Method and apparatus for the production of fancy yarns from falsely twisted core and fancy threads. Staple fibers are drafted by a cylindrical drafter; the core and fancy threads are false twisted by a hollow spindle. At least one drafting of staple fibers are supplied upon the falsely twisted core and fancy threads by means of a pneumatic transporting channel. The speed of the fibers constituting the fancy threads is greater than the peripheral speed of the rollers delivering the core thread. If desired, two rovings of staple fibers may be used, the two rovings having different titre in a ratio of 1:10 and having different lengths of the fibers in a ratio of above 1:2, both rovings entering from one drafter, the two rovings after being drawn being supplied together to the combined false twisted core thread and fancy thread.

Abstract: A traversing core yarn guide for use on spinning frames mounts to an existing silver trumpet bar in a manner which allows the bar to be traversed, while the guide is provided with a hinge that allows it to be raised to a position which will not interfere with a concurrent raising of the top roll mechanism of the frame. The guide includes an interchangeable wing portion having yarn guiding inserts on its respective ends, such inserts being either of a ceramic, porcelain, pin or pulley construction.

Abstract: A process and apparatus for producing a twisted elastic thread in which an elastomeric thread of substantially 154 dtex to 310 dtex, is adhesively twisted with two yarns. The thickness of each of the two yarns is substantially of 100 to 12,500 dtex, and the yarns preferably are OE yarns of polyvinyl chloride, polyvinyl cyanide, polyacrylonitrile and/or wool threads, preferably produced by the rotor process. Prior to twisting, the yarns are surface-swelled under a vacuum between substantialy 0.1 and 0.2 bar in superheated steam at substantially 70.degree. C. for up to ten minutes for loosening purposes. During twisting, a pre-tension is imparted to the elastomeric thread with respect to the yarns. Such pre-tension is imparted to the elastomeric thread only a predetermined time after starting the twister, and the elastomeric thread is pre-tensioned by substantially 2 to substantially 5 times compared with the yarns.

Abstract: In an apparatus for producing effect yarn, at least one pair of feed rollers is provided for supplying a yarn component creating the effect, this pair of rollers consisting of a driven feed roller and a pressure roller forced against it. Moreover, the apparatus has at least one supply arrangement for a foundation thread, a hollow spindle carrying a bobbin of binding thread and having a twist limiter, and a pair of draw-off rolls. A deflecting pin extending substantially parallel to the axes of the rollers is provided at the exit of the pair of feed rollers in the wedge formed between the two rollers. This deflecting pin serves to guide the foundation thread which is led past the pair of feed rollers on the outside. This deflecting pin is arranged substantially in the plane of thread movement passing through the line of contact of the two rollers and through the yarn components combined and false-twisted downstream of the line of contact.

Abstract: An apparatus to uniformly wrap filament around the surface of a spun core yarn is disclosed. Means for fabricating a core yarn is provided. At the critical point of yarn fabrication, the spun core is simultaneously twisted or rotated on its longitudinal axis by means of ring spinning and contacted with a filament introduced by means of over-feed rollers. Helical wrapping of the filament around the surface of the staple core yarn takes place as the filament cohesively contacts the twisting core yarn to form a composite filament wound yarn.

Abstract: A process for producing a yarn with alternate twist, which is obtained by intermittently varying the distance which the twist extends back upstream of a false twister. The variation in the distance is produced without braking the yarn and is achieved by means of a blocking device acting intermittently at a point located close to the false twister. The duration of action of the blocking device approximately corresponds to the time taken by a given point on the yarn to cover the distance from a delivery member to the false twister.

Abstract: A double layered yarn having a sheath and core structure is prepared through a roving process, drawing process or fine spinning process. The sheath portion of the yarn is composed of staple fibers which have a high thermal shrinkage in boiling water of at least 5%, and the blended fiber ratio of which is between 50% and 25%. The core portion of the yarn is composed of staple fibers which have a property being spontaneously extensible, and the blended fiber ratio of which is between 25% and 75%. The double layered yarn is subjected to a heat treatment in hot water, and a bulky spun yarn which comprises staple fibers A and B is obtained. The staple fibers A are concentrated toward the inside of the bulky spun yarn after they are shrunk. The ends of staple fibers B are held within the inside of the bulky spun yarn, and the intermediate portions of fibers B are bulged as a loop from the body portion of the bulky spun yarn, after the fibers B are spontaneously extended.

Abstract: A roving formed from a first kind of staple fibers, each of which is at least 3 denier, is interposed with a randomly mixed sliver formed from a second kind of staple fibers, each of which is between 1.5 denier and 3 denier, and a third kind of staple fibers, each of which is at most 1.5 denier, the thermal shrinkage of the second kind of staple fibers being higher than that of the third kind of staple fibers. The roving and the randomly mixed sliver are twisted together so that the sliver wraps around the roving in order to form a double layered roving. After the double layered roving is subjected to fine spinning, it is then subjected to a heat treatment. As a result, a multi-layered bulky spun yarn is obtained.

Abstract: A boucle yarn is prepared by relaxed heat treatment of a precursor yarn prepared by combination of a low shrinkage filament or yarn or monofil at the back of the front roller of a spinning frame with a roving of high shrinkage fibers followed by twisting to a twist multiplier of 1.5 to 4.0. The shrinkage differential between the high shrinkage fibers and the low shrinkage fibers must be at least 20%.

Abstract: A process and apparatus for covering elastic single strand core yarns with a plurality of inelastic cover yarns, such as nylon, is provided. The core yarn is stretched in a controlled manner between a set of feeder rolls and a pair of drawing rolls. Intermediate the feeder and drawing rolls, a thread guide is provided for accommodating the interlacing of a plurality of cover yarn strands with the single strand core yarn passing therethrough. The cover yarn and core yarn are further intertwined with one another at a nip formed at the drawing rolls by way of a slight twisting action applied thereto via a take-up spindle for the resulting composite yarn disposed downstream of the drawing rolls.

Abstract: A conventional spinning or twisting machine is easily and inexpensively adapted for producing a unique novelty yarn by mounting an auxiliary strand guide device in accordance with this invention onto the strand guide support conventionally provided above the spindle. The auxiliary strand guide device is in the form of an elongate wire element having respective guides formed therein and located for directing respective effect and binder strands onto an advancing foundation strand for being wound thereabout to produce a novelty yarn.

Abstract: A unique and appealing novelty yarn characterized by having random size loops disposed at random locations therealong is economically produced on conventional textile machinery, thus avoiding the need for specialized and expensive machinery such as a novelty twister. The yarn includes a foundation strand and an effect strand wrapped about the foundation strand, with certain areas of the effect strand forming random length multiple layer deposits at randomly spaced locations along the foundation strand, and with portions of the effect strand projecting from the multiple layer deposits and forming random size loops. A binder strand wrapped about the foundation and effect strands binds the effect strand to the underlying foundation strand.

Abstract: This invention concerns cable making machines and relates to a machine incorporating both twisting and cabling mechanisms. The apparatus is designed to enable the lapping section of the machine to be isolated from the twisting section in order that the machine can be used selectively for both twisting and lapping or twisting only. Common drive means is provided for the machine such drive means including, for example, a clutch for isolating the drive to the lapping section of the machine when required.

Abstract: A method and apparatus for making a novelty yarn, having relatively short varying length and varying size auxiliary strands randomly distributed therealong, on a spinning frame provided with a series of spaced pairs of rotatable drafting elements defining a drafting zone, which drafting elements include a pair of delivery rolls. The novelty yarn is formed by advancing at least one strand of staple fibers into and through the drafting zone while continuously forming therefrom a ground strand of drafted staple fibers emerging from the delivery rolls. An auxiliary strand of staple fibers is fed through the nip of a pair of auxiliary feed rolls and to the nip of the delivery rolls while the auxiliary feed rolls are being rotated at a slower effective speed than the effective speed of the delivery rolls so as to effect a random parting of the auxiliary strand and thereby form relatively short varying length auxiliary strands randomly distributed along the ground strand.

Abstract: A double-yarn package of elastic and non-elastic yarns is produced by preparing a non-elastic yarn twisted periodically and alternately in opposite directions, doubling an elastic yarn which is in a stretched condition with said twisted non-elastic yarn, twisting the doubled yarn periodically and alternately in such directions as are opposite to the directions of said periodical and alternate twist of said non-elastic yarn, and then winding the thus twisted doubled yarn on a winding core.

Abstract: A twisted pair of wires is produced by drawing two insulated wires from two supply reels while rotating one wire supply reel about the other. A capstan and tachometer measure the linear rate at which the twisted pair is being drawn. The output of the tachometer is controllably and variably divided and used to control a power inverter that drives a motor which rotates the one wire supply reel about the other. The variable ratio between the linear wire movement and the rotary or twisting movement is controlled by a random generator producing a series of numbers representing length per twist of the twisted pair, between fixed limits.

Abstract: The invention comprehends a method of twisting core strands, of the type comprising a sheath of fibres surrounding a central strand, a method in accordance with which a sliver of fibres is drawn between a point of entry of the said sliver and a pair of downstream drawing cylinders, a central strand is drawn under constant tension and is introduced without drawing into the sliver upstream of the said drawing cylinders, characterized in that a torsion in one sense and the other is conferred successively on the assembly constituted by the sliver of fibres and the central strand downstream of the said drawing cylinders.

Abstract: This invention provides a method of forming fancy yarns which does not require a fancy twisting frame. The method according to the present invention involves supplying a fibrous foundation strand and a fibrous effect strand to a pair of drafting rollers, the foundation strand being supplied from a drafting restraint such as a double apron and the fibrous effect strand being supplied immediately before the rollers without restraint whereby portions of the effect strand are snatched through the rollers and are incorporated into the foundation strand as randomly spaced irregularities which persist when the combined strands are spun into a yarn. The method can be used to make slub yarns, for example of wool, which may have a foundation including a synthetic multifilament reinforcing core. By back-twisting the resultant yarn with a binding yarn a slub gimp yarn can be produced.

Abstract: Fancy yarns such as knop or stripe yarns are produced by supplying an effect yarn or roving to a foundation yarn or roving during the operation of spinning but before the foundation yarn reaches the twisting spindle. The effect yarn is kept under a tension which is adjusted to cause the yarn to oscillate with respect to the foundation yarn. Oscillation builds up layers of effect yarn at intermittently spaced locations along the foundation yarn which constitute irregular knops or stripes on the yarn. The twist of the effect yarn in the finished fancy yarn will be found to reverse with each succeeding layer in the knop. The invention enables fancy yarns to be readily produced on ordinary spinning frames without the provision of interrupted feeds or other special features on the frame.