Abstract: The false twist machine has a texturing part arranged below heat treatment zones in which three supply devices and a false twist device are superimposed and staggered from the back to the front in such a manner that in threading in of the thread into these devices turning about and overhead working processes of the operator are avoided. The thread paths formed by the threading in are placed one in front of the other in the sequence of the threading in process. A bobbin creel is movable to the texturing part and is equipped with a thread transfer device which transfers the threads coming from the individual creel bobbins into the vicinity of the first supply device. The winding device is arranged opposite the texturing part at a distance forming an operating alley and gives off the full bobbins to the outerside of the winding device opposite the operating alley. The empty bobbins can be moved from the machine end into a readiness reserve position.

Abstract: A sensing device responsive to ballooning motion of textile yarns, and producing electrical sensing signals comprising a hollow or ring-shaped yarn guide body whose interior periphery is provided with motion responsive and non-responsive elements in alternate sequence.

Abstract: An optical cable is assembled by laying up optical fibres around the surface of a central strength filament. To minimize longitudinal tension in the fibres, air is directed along the surface of the cable in a feed direction. A blow-pipe type device has a pair of concentric tubes along the central longitudinal axis of which cable is drawn. The tubes are sealed together at the upstream end, the outer tube extending beyond the inner tube at the downstream end. Compressed air injected between the tubes is directed along the cable surface as it escapes from the downstream end. The air jet both frictionally urges fibres in the feed direction and creates a partial vacuum over the fibres to locally reduce contact pressure between the fibres and the central strength filament.

Abstract: A device for delivering multiple yarns, each taken from a bobbin, comprises means for braking each yarn, other means for acting on less stretched yarns so that they advance at the same speed as the most stretched yarn, and finally a guide ensuring the displacement of these yarns parallel to one another. It may further comprise a conventional brake with elastic cheeks for each yarn, an idle drum with a non-skid peripheral coating with which the yarns cooperate before passing over a separator system.

Abstract: A head for laying optical fibres in a helically grooved cable core consists of a freely rotating mount assembly carrying fibre guides inclined on the axis of travel of the core with an angle smaller than 45.degree.. The fibre guides are elastic hollow tubes ended by a bevel maintained on the bottom of the associated groove. An optical control unit is provided for correct positioning of the mount when starting to lay.

Abstract: A plurality of yarns are drawn from supply sources onto feed rolls and over a set of draw rolls in adjacent relationship. The yarns are urged into a desired contiguous relationship on the draw rolls by a concave guide surface in the course of passing from the yarn feed rolls to the draw rolls.

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: A false-twist apparatus has a support defining three generally parallel and radially spaced axes surrounding a central axially extending twisting region. Respective shafts are journaled in this support for rotation about the axes and carry respective staggered sets of axially spaced disks whose rims radially overlap at the twisting region. Yarn eyes above and below the sets of disks are axially aligned with this twisting region so that a yarn to be false-twisted can pass axially through the lower eye, then zigzag along the regions in contact with the disks, and then pass axially out through the other eye. All of the disks are permanently joined and synchronously rotated. A holder displaceable in a straight line on the apparatus support carries a plurality of arms having yarn-pushing tips that can push a yarn to be false-twisted radially into the region.

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: An optical cable is assembled by inserting dielectric optical waveguides into periodically reversing helical grooves in the surface of a central filament. The invention is concerned with minimizing longitudinal tension in the waveguides. Powered rollers draw dielectric optical waveguide from fixed reels and delivers it, in a slack condition, to a guide unit which is mounted by means of a thrust bearing. The guide unit supports rods with apertures at their ends through which dielectric optical waveguide is guided, the rod ends being disposed within the grooves so that respective dielectric optical waveguides and grooves are maintained circumferentially coincident. Cable is drawn downstream of the guide unit to pull the filament and dielectric optical waveguides together at the guide unit and also to reciprocally drive the guide unit. As the filament, with dielectric optical waveguides positioned in its grooves, exits the guide unit, it is helically wound with tape.

Abstract: The thread deflecting element is provided with an arcuate groove through which the thread passes as well as with compressed air ducts which deliver compressed air at the entrance of the groove on the side within the groove curvature and at a point downstream of the groove apex on the side outside the groove curvature. The air is delivered via ducts within the plate forming the deflecting element. The travelling thread is relieved of a degree of tension in the deflecting element so as to equalize the tension in the two lengths of the thread loop passing over the two heating paths of the heater.

Abstract: The deflecting element is positioned adajcent to a main heater in order to deflect the thread for two passes in the heater. The deflecting element includes a cylindrical surface which is disposed at an angle to the axis of rotation of the element as well as pair of flanges which define the cylindrical surface. A false twist device is located downstream of the heater to impart a false twist in the thread. The false twist is able to propagate through the thread from the false twist device to the heater and deflecting element back to the supply rolls.

Abstract: Self-twisted yarn is packaged on a take-up device to prevent loss or modification of the twist previously imparted to the yarn by maintaining the yarn in a substantially rotation-free state as it is guided onto the take-up device. This is accomplished by wrapping the yarn around an elongated guide rod as it is fed to the take-up device under tension or by controlling the tensioned free length of the yarn as it is guided onto the take-up device to preclude rotation of the nodes or points of twist reversal in the yarn.

Abstract: A yarn is twist-drawn on an apparatus employing a 2-for-1 twist spindle; at least one guide roll positioned above the spindle; means suitable for receiving a yarn from said guide roll and drawing the yarn; and means suitable for winding the drawn yarn, wherein the guide roll comprises a cylindrical surface mounted on a shaft which is attached to a base suitable for positioning the cylindrical surface so that the yarn rides on the surface of the roll in a relatively fixed position and a substantial amount of twist is not trapped in the yarn ahead of the guide roll.

Abstract: An apparatus for twisting together a first and second yarn has a frame extending in a longitudinal direction and carrying a row of upright spindles each having and rotatable about an upright spindle axis. A holder is carried on the frame above each spindle and in turn carries a pair of yarn supplies one which may be the first yarn and one the second, or both the first. When the holder carries both first and second yarn supplies the spindle is operated as a takeup spool and is provided with a traveling-ring arrangement, with the two yarns being pulled off the respective supplies and twisted together. When the holder carries only two supplies of the first yarn the supply of the second yarn can be carried on the spindle, and a separate takeup spool can be provided above the spindle and below the holder. This takeup spool is driven to take up the two yarns and the first yarn is fed from the holder down and then up through the hollow spindle to be twisted with the second yarn that is simultaneously being spun.

Abstract: An apparatus for twisting a first and second yarn having a parallelogrammatic mounting support for a plurality of supplies of one of said yarns mounted above a twisting spindle carrying the other of said yarns and having a radially open aperture, a takeup means mounted above said twisting spindle, and a U-shaped guide for passing said one of said supplies of yarn from the mounting support to said spindle.

Abstract: An optical cable is assembled by inserting dielectric optical waveguides into a filament having periodically reversing helical grooves. Dielectric optical waveguide is unwound from fixed reels by movement of the filament past the reels. A rotatable guide unit has flexible tubes through which dielectric optical waveguide is guided, the tube ends being disposed within the grooves so that respective dielectric optical waveguides and grooves are maintained circumferentially coincident.

Abstract: A method of and apparatus for laying-up hoses and electrical cable cores in which the hoses and cores are initially laid out horizontally and threaded through tubes extending between a plurality of lay plates. The hoses and cores are pulled from the tubes while the lay plates are rotated synchronously to form a laid-up unit. The tubes are freely rotatable with respect to the lay plates, so that the hoses and cores are themselves twist free in the laid-up unit. The horizontal arrangement avoids the need for the hoses to be wound on enormous bobbins and laid up using conventional laying-up techniques.

Abstract: A yarn texturing machine has a texturing section spaced from a creel section by an operator's aisle. Setting heaters are located upright in proximity with the creel, and have their bottom inlet ends well above floor level and the top exit ends extending above the creel. yarn cooling and stabilizing guides span the aisle and are downwardly inclined from the top ends of the setting heaters towards the texturing section.

Abstract: A method and apparatus for the entanglement of a first strand and a moving second strand are disclosed. A member having a passageway therethrough for the passage of the second strand is adapted for the circumferential positioning of the first strand. Means are provided for repositioning the first strand from the member into circumferential entanglement with the second strand by reducing the circumference of the member.

Abstract: A control device to prevent or limit gangion enwrapment on long lines including means mounting a line-deflecting guide roller to vary the angular relationship between the roller axis and the plane defined between the line stretches extending to and from the deflecting roller during line hauling. Angular displacement of such guide roller to either side of a neutral position under operator control induces twisting in the approaching long line one way or the other so as to prevent or eliminate gangion enwrapment.

Abstract: A yarn-twisting apparatus comprises a spindle receiving the supply spool or bobbin, a rotating can or sleeve surrounding the spool and the bobbin, a yarn takeup arrangement for drawing the yarn from the upper end of the can, and a housing surrounding the can. According to the invention, the stationary housing and the upper and lower ends of the spindle are provided with closures which reach close to the spindle at the bottom and form an opening traversed by the yarn at the top. Means is provided for enabling the upper closure to be removed or displaced for ready access to the interior of the housing. The system reduces the power consumption required for twisting the yarn.

Abstract: A false-twist crimping machine for processing filament yarn. The machine comprises a side frame having a bobbin located thereon for supplying the filament yarn to a delivery means for guiding the yarn to a heating zone. A middle frame carries a cooling zone which receives the yarn as it feeds from the heating zone. A false-twisting means receives the yarn as it feeds from the cooling zone and a take-off means supplies the yarn emitting from the false-twisting means to a winding device located at the middle frame. In assembly, the heating zone slopes at an oblique angle between the side frame and the middle frame and a height-adjustable yarn guide means is positioned at the angle formed between the heating zone and the cooling zone in a manner so that the yarn may run over it along a line substantially tangent from the outlet of the heating zone and along a line substantially tangent to the inlet of the cooling zone.