Abstract: In an apparatus for manufacturing a fancy yarn, a rotary hollow spindle (2) carries a binding thread spool (3) and, at its discharge end, a false twist element (4). Associated with the hollow spindle (2) at the entry end are feed means having a pair (13) of delivery rolls for at least one core thread (G) and at least one fancy thread (E) which is supplied at higher speed than the core thread (G). In addition, arranged downstream of the false twist element (4) is a pair (5) of take-up rolls for taking up the finished fancy yarn at a lower speed than the supply speed of the fancy thread (E). A central drive motor (M2) drives the pair of take-up rolls (5) by way of belt drives (7, 10, 12) and the pair (13) of delivery rolls by way of a stepless control transmission (11). The feed means comprise a drawing system (S) for the fancy thread (E) comprising a pair (16) of entry rolls, a pair (17) of middle rolls and a pair (19) of exit rolls, and a separate pair (13) of delivery rolls for the core thread.

Abstract: A linear material 41 is once wound on a winding drum 3, and then wound on a core bar 1 by a winding disk 2. The winding disk 2 periodically reverses the direction of rotation.

Abstract: A spinning assembly for a wrapped yarn spinning machine in which a staple sliver is guided by a delivery device into a hollow spindle which carries a co-rotating binding thread; the thread is wound around the staple sliver by the rotation of the hollow spindle. A stationary balloon limiter is provided in the vicinity of the binding thread and a screen is mounted in front of the delivery device, which screen comprises a passage for the staple sliver. This screen is constructed as a screen plate, mounted at an axial distance from the balloon limiter. This construction of the present invention has the advantage that an air stream is generated within the balloon limiter, which flows upward from below and leaves radially through the gap between the upper end of the uncovered balloon limiter and the screen plate. This air stream is directed counter to both the sliver and the binding thread entering the hollow spindle, so that no fiber fly can penetrate the interior of the hollow spindle.

Abstract: Apparatus for stranding two or more wires together comprising a wire guide means extending in a wire pass direction to a twisting station, the guide means held against rotation about an axis at its upstream end and being rotationally flexible to be torsionally twisted by a rotatable twisting means in the twisting station connected to the downstream end of the guide means. A wire separation tube extends from the twisting means along a fixed curved path section to a stranding station to prevent wires stranding together until they reach the stranding station. The separation tube is rotatable about an axis coinciding with the fixed curved path section and has flexibility to enable the tube to be maintained in its curved configuration along the path with torsional rigidity to avoid build-up and retention of twist.

Abstract: Cable core unit forming apparatus having a plurality of wire guide means, each for stranding wires together. The guide means are laterally spaced and each extends along a longitudinal axis to be non-rotatable about the axis at its upstream end. It is rotationally flexible to be torsionally twisted by rotatable twisting means at its downstream end. Each guide means are disposed at one of two or more twisting stations. Feedpaths for wires from other twisting stations converge to a stranding station for the core unit. Wire separation tubes prevent the wires from stranding into pairs until immediately before the stranding station. Each separation tube is rotated about its axis which is maintained curved to follow one of the converging paths and the tube is flexible to enable its curved axis position to be maintained during rotation.

Abstract: A spinning-twisting machine with a hollow spindle, particularly for the production of fancy yarns, includes a drawing frame for an assembly of fibers. A drawing roller is contained in the drawing frame and it is notched at spaced locations around its circumferential surface for suppressing, locally and temporarily, the nip between a pair of drawing rollers. An assembly of fibers is passed between the drawing rollers and then through a hollow spindle where a covering yarn is wrapped around the assembly of fibers. Take-up cylinders draw the combined fancy yarn through the spindle at a peripheral speed greater than the speed of feed rollers supplying the assembly of fibers to the drawing rollers.

Abstract: A pivotable spindle mounting provided on a machine frame such as a wrap spinning machine that has a spindle mounted on a pivotable arm. The pivotable arm is mounted on a support bolt. A stud is carried on the support bolt and extends through a slide provided in a bushing that is rotated, the pivotable arm with the spindle thereon is rotated beneath a cover and upon a counter-force engaging the pivotable arm, the pivotable motion of the arm and spindle is converted to a lifting motion wherein the top of the spindle is positioned closely adjacent an opening in a cover.

Abstract: An apparatus for aiding in piecing-up wrapped yarn on a yarn wrapping device which includes a hollow spindle upon which a bobbin of wrapping thread is carried. A pair of delivery rolls feeds a fiber bundle F through a fiber feed channel 8 provided in a pot carried on top of a housing which encloses the hollow spindle and bobbin. Holes 73 are provided in the downwardly extending projections of the pot so that in normal operation air flows through the housing and out of the holes 73. However, upon piecing-up of the yarn, the pot is depressed closing the holes 73 and 61 allowing the air flow to flow at its maximum through the feed channel out of a suction duct 9. This increased suction through suction duct 9 causes the fiber bundle F, the wrapping yarn B, and wrapped yarn G to be sucked thereinto for being pieced-up.

Abstract: The invention involves a ply or wrapped yarn spinning assembly of the type having a drawing unit supplying a sliver through one or more hollow spindles, at which hollow spindles a binding thread is wrapped spirally around the sliver to form yarn. Yarn condition monitors detect the yarn condition and the supply of binding thread. In the event of a malfunction, including exhaustion of binding thread at a hollow spindle, the monitors automatically disengage the supply of sliver by pivoting open a load bearing member of the drawing unit. In preferred embodiments the monitors also actuate mechanical actuators for pivoting driving or driven rollers of the hollow spindles, yarn take-off rolls, and a yarn windup device of the spinning assembly. An auxiliary thread bobbin and associated cutter mechanisms are also provided to facilitate restarting after a malfunction and shutdown.

Abstract: Laying optical waveguides into sinuous grooves of a support filament while holding the grooves in the same position as the filament passes through a waveguide laying station by causing the filament to twist in oscillatory fashion during passage through the station. The grooves are held in the same positions by positionally fixed guide projections located in the grooves. By this laying method, the waveguides themselves are not oscillated around the support filament as they are fed into the laying station. Also, guide elements to feed the waveguides into the grooves extend downstream to a wrapping station whereby tape wrapped around the support filament also is wrapped around the guide elements. The waveguides exit from the guide elements after the tape has been wrapped.

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: A device for covering stranding elements with a cover or retaining spiral characterized by a spinning member being carried on a first tube which is supported for rotation on a support tube and a pipe store capable of SZ stranding of elements into the interior of the support tube and terminating in a stranding disc which is supported for rotation in the first tube and removably attached to the end of the pipe store so that the elements being stranded pass through the interior of the support tube as the spinning member applies the retaining spiral or cover.

Abstract: An apparatus for making a doubled yarn draws a core yarn off a core-yarn supply, pulls the core yarn longitudinally in a travel direction along a yarn path, and drafts the core yarn longitudinally along this path. A tube through which the yarn passes longitudinally extends along the path downstream of the drafting station has relative to the yarn-travel direction an upstream portion and a downstream portion. A current of air is passed longitudinally in the travel direction through the upstream tube portion and another current is passed longitudinally opposite the travel direction through the downstream portion. Thus upstanding fibers are first laid against the core yarn to be integrated into it as same twists in the upstream tube portion and any remaining fibers are laid back against it so that a winder yarn can be wound around the core yarn immediately downstream of the tube to bind in these fibers too.

Abstract: A mechanism for the production of wrapped yarn which consists of a bundle of spun fibers wrapped around a binding thread. A hollow spindle 5 is supported between a pair of delivery rolls 1, 2 and a pair of draw-off rolls 3, 4. A rotating binding thread bobbin 7 is arranged coaxially with the hollow spindle 5 and is enclosed by a housing 8. An air flow which can be generated in the housing and/or introduced into the housing causes the pressure within the housing to be built up so as to prevent fibers and the like from entering an exit hole carried in a cover 80 provided on the housing.

Abstract: A method and apparatus for piecing up yarn on an apparatus for producing wrap yarn. The device includes delivery rolls, a hollow spindle, takeup rolls, and a wind up device. A binding thread is fed from a bobbin carried on the hollow spindle for wrapping around a fiber bundle being fed through the delivery rolls and the hollow spindle. A clamping device and yarn guide is provided for positioning a piecing thread into the nip of the delivery rolls for being joined with said fiber bundle upon breaking of the wrap yarn.

Abstract: A device for supplying two separate wires to a wire guide in a coil winding machine of the kind comprising a stationary coil support, a rotating wire guide and two spools for supplying said wires. A first stationary spool is mounted on a support at least partly disposed coaxially to the wire guide axis and the first wire unwound therefrom is guided along said axis, means being provided for guiding the second wire--unwound from the second spool, disposed upstream of the first spool--along a path which runs astride of the first spool and is rotated around it in time with the rotation of the wire guide.

Abstract: A wrap-winding spinning machine for producing wrapped yarns having draw frames for attenuating slivers, wherein one wrap-winding apparatus is associated with each draw frame is proposed, with the wrap winding apparatus further including a high speed rotor and a yarn channel coaxial with the axis thereof, the rotor associated with a driven hollow spindle and a bobbin supported thereon and a balloon limiter supported on the machine frame by upstanding opposed ribs. The bobbin supports a centrally apertured cap device with the cap device having a continuously curved, convex end face with a sharply curved rim that merges with the end disc of the bobbin. The aperture in the cap device is arranged to receive the feed of the winding thread and the sliver as it passes downwardly into the yarn channel and is emitted as a finished wrapped thread.

Abstract: Apparatus and method for making loop chenille type yarns and yarns produced thereby are disclosed. An elongated spindle having a tapered needle surface at one end thereof is provided. The spindle has a passage therein in communication with the needle surface for feeding a core thread to the needle surface. Effect thread is overfed to the needle location where a nose piece member cooperating with the needle aids in wrapping the effect thread about the needle to form loops. The binder yarn is fed to the needle and twisted about the core and effect threads. In a preferred embodiment, means are provided for reciprocating the nose piece relative to the needle between effect thread loop forming and effect thread non-loop forming dispositions. In this manner, "thick" and "thin" novelty yarns are provided in which the thick sections of the yarn comprise looped effect threads whereas the loops are not provided in the thin yarn sections.

Abstract: Method and apparatus for producing high quality wrapped yarn by a wrapping operation wherein a binder strand, carried by a supply package supported by a rotatably driven hollow spindle, is fed to the free end of the hollow supply spindle and wrapped around a core strand moving through the hollow spindle. The binder strand inherently balloons outwardly in its path of travel from its rotating supply package to the core strand being wrapped. The zone in which the binder strand balloons is enclosed to isolate it from the ambient air about the wrapping apparatus to thereby substantially preclude pick up of fiber waste on the binder strand. Suction means communicates with the hollow spindle to attract the core yarn and facilitate passage of the wrapped yarn therethrough. Isolation of the zone in which the binder strand balloons is obtained by enveloping the package and balloon-forming region of the binder strand with an enclosure.

Abstract: The invention relates to a method for producing a wrapped yarn which consists of a bundle of textile fibers essentially without twist wrapped spirally by a binding-thread wherein prior to wrapping, the bundle of textile fibers is false-twisted and is introduced together with a binding-thread into the hollow spindle of a wrapping member having a binding-thread bobbin and a device for carrying out the method.

Abstract: The invention relates to apparatus and method for producing a wrap-around yarn of the type having an untwisted core thread with a binder thread helically wrapped around the core thread wherein the core thread is given a false twist and the core thread and binder thread are passed through separate openings through a hollow spindle to a core thread deflection point at which time the false twist is removed from the core thread and at which point the binder thread is wrapped helically around the core thread.

Abstract: A method for continuously wrapping a tape spirally about an elongated body by passing the body longitudinally through the center of a rotating hollow circular spool while continuously feeding tape to the spool to create several wraps of the tape around the spool and then feeding the interior wrap of the tape through a slot in the spool onto the elongated body. An apparatus for carrying out the invention is also disclosed.

Abstract: A method and apparatus for piecing up a broken entwined yarn being produced on a machine from a bundle of spinning fibers and a binding thread. The bundle of spinning fibers are fed through a pair of delivery rollers into a rotating hollow spindle. The binding thread is carried on a bobbin that is, in turn, carried on the hollow spindle for being wrapped around the bundle of fibers as it passes through the hollow spindle producing an entwined yarn. Upon breaking of the entwined yarn the bundle of spinning fibers is deflected between the delivery rollers and the hollow spindle out of its normal path by a stream of suction air. An end of the entwined yarn is drawn off of a takeup bobbin and fed back through the hollow spindle and is united with an end of the binding thread. The ends of the binding thread and the entwined yarn are then twisted together with the bundle of spinning fibers and the production of the yarn is re-initiated.

Abstract: A yarn is described composed of an untwisted staple sliver and of at least one filament wound around this sliver.The denier of the winding filamentary yarn is under 50 dtex, the elongation at break of the winding filamentary yarn is at least as great as the elongation at break of the staple fibers; the strength at a specific load of the winding filamentary yarn at 4% of elongation is at least 10 g. Moreover, the shrinkage factor of the winding filamentary yarn is within the same range as the shrinkage factor of the staple fibers. Also at least 85% of the staple fibers are longitudinally orientated in the sense of the yarn direction.Furthermore, a process is described for the manufacture of a wrapped yarn by wrapping at least one filamentary yarn around stretched, highly oriented staple fibers being led through the hollow shaft of a rotating filamentary yarn bobbin. The winding filamentary yarn is withdrawn from the filamentary yarn bobbin and also led through the hollow shaft of this filamentary yarn bobbin.

Abstract: A balanced elastic yarn includes an elastomeric core twisted in one direction and a single cover strand helically wrapped about the elastic core in a direction opposite to the twist direction of the elastic core. After a predetermined twist has been inserted in the elastic core, the core is tensioned with the elongation being positively controlled between spaced points intermediate the yarn take up and the elastic core supply and a high number of wraps per inch of the cover strand are helically wound about the elongated core while the core draft or stretch is positively controlled. The elastic core take-up package is subjected to heat to relieve the stresses in the cover strand resulting in a balanced elastic yarn in the relax state.

Abstract: Disclosed is a method and apparatus for winding covered yarn, namely non-elastic yarn twisted about a strand of elastomeric yarn, on a core to form a take-up package so that the wound covered yarn can be drawn (unwound) from the package without hanging up on itself or puckering.

Abstract: The production of plied yarn in pot spinning in which a pot is filled with yarn emerging in one direction from a reciprocating traversing tube. When the pot is filled to the desired extent a lead yarn is injected into the pot by pneumatic means in a direction opposite to the said one direction so that yarn from the traversing tube is wound around the lead yarn. The lead yarn is then withdrawn from the pot in said one direction and the yarn in the pot is wound around further yarn from the traversing tube.

Abstract: A method of making a cylindrical electrical conductor or roving comprised of a bundle of conductive glass filaments, wherein the filaments are cured under tension in a flat ribbon-like form. The method includes binding the filaments into a preferred cylindrical bundle or roving by the steps of passing the filament bundle through the axial bore of an annular bobbin having a binder yarn or element thereon and rotating the bobbin to centrifugally throw the yarn in an unconfined balloon. The free end of the yarn is secured to the filament bundle, thereby wrapping the bundle with a helical overwrap. The balloon of yarn is controlled and stabilized by air currents generated adjacent the bobbin.

Abstract: In a machine for coiling a filament-wire for incandescent lamps or gas discharge tubes, a support-wire is continuously fed through an axial bore of a high-speed spindle. A reel supplying the filament-wire is integral with the spindle near the outlet end of the bore where the filament-wire is helically wound on the support-wire after having passed over a guiding edge of an arm protruding from a rotor mounted for free rotation on the spindle. The guiding edge extends along a parabola having its focal point on a rim of the reel adjacent to the coiling location. A braking device acting on the rotor is automatically controlled for maintaining a constant tension on the filament-wire as a function of the decrease in the radius of supply of filament-wire on the reel.

Abstract: The disclosure relates to a tape supply package having a plurality of different tapes wound thereon in a universal or traverse wound arrangement. Apparatus and a method for traverse winding the package are disclosed. The disclosure also relates to apparatus and a method for simultaneously wrapping a plurality of different tapes around the outer portion of an elongated structure such as an electrical conductor by the use of the tape supply package having the plurality of traverse wound tapes. The disclosure further relates to various multiple tape-wrapped elongated constructions such as electrical conductors which have a plurality of partially overlapped tapes which have been simultaneously applied.

Abstract: A first yarn is combined with a second yarn from one or more yarn packages thereof by a device which includes a yarn holder adapted to hold first yarn wound thereon, the yarn holder having an axial passage through which the secone yarn travels, a guide at the exit end of the holder for guiding the first yarn into engagement with the second yarn as the first yarn unwinds from the holder, and a support for the holder. The support together with the yarn holder pivots about the guide so that the holder is automatically aligned with the second yarn even though the second yarn varies in its angle of delivery to the holder. The second yarn thus carries the first yarn as the first yarn is wound about the second yarn.