Abstract: A textured continuous filament yarn is obtained by drafting in a wet condition a sliver or a roving, which comprises at least staple fibre material, by combining the thinner fibre strand so obtained with at least one continuous filament to form a filament-fibre blend and by bonding the staple fibres to the continuous filament. The staple fibres may be bonded in a random position to the continuous filament or parallel or substantially parallel to the continuous filament. In the latter case the texture properties become apparent after processing of the yarn into a woven or knitted fabric and finishing such a fabric.This is a division of application Ser. No 695,935, filed June 14, 1976, now abandoned.

Abstract: Method and apparatus for continuously monitoring the surface temperature of a glass ribbon moving through a critical portion of an annealing lehr where the rate of cooling determines whether the ribbon may be cut easily after annealing and whether the ribbon is subjected to spontaneous breakage during annealing. The temperature sensing means comprises a thermocouple junction embedded within a boron nitride plug a predetermined distance from the surface of the plug that slides in contact with a surface of the moving glass ribbon in the main portion of the ribbon that is cut into blanks of commercially acceptable glass of acceptable optical quality.

Abstract: A high-speed twisting machine for stranding wires or the like wherein there are a plurality of rotor units or assemblies, one on each side of a cradled take-off spool, each rotor unit consisting essentially of a rotatably driven hollow bearing tube with inlet and outlet openings for the transported wires in combination with open-ended concave guide pots attached at their base to the opposing faces or ends of the bearing tubes on either side of a cradled take-off spool, the outer peripheral guide surface of each pot being symmetrical around the machine axis to define a curved surface corresponding closely to the path of the transported wires taken off during normal twisting operation. The wire openings or bores near the end of the bearing tube must be located outside the curved guide surface of the guide pot connected to the same tube end to provide easy access and visibility.

Abstract: An open end spinning machine is provided with individual thread guides for each station. The thread guides direct compressed air along an axial channel in which the thread travels. The air expels the thread in the direction reverse to normal thread travel whenever it is desired to return a broken thread to the spinning chamber and rotor. The apparatus includes a thread cutting mechanism, disposed between the pneumatic thread guide and the spinning chamber, for cutting the thread to a fixed length so that it may be reattached to the fibers in the rotor without discontinuities.

Abstract: A thermostat adapted for use in an electrical control system for controlling temperature conditioning apparatus has at least two circuit adjusting members or potentiometers comprising a resistance circuit board mounted on a base and a pair of pivotally mounted wiper supporting members for cooperating with the resistance circuit. Each of the members are pivoted on the same pivot and the first member has an open area through which the wiper of the second member mounted adjacent thereto protrudes to cooperate with the electrical circuit board to provide a compact unit. A pair of adjusting members are horizontally movably attached to the base to cooperate with the ends of the pivotal selector members to provide for pivotal movement of the selector members upon straight line movement of the adjusting member.

Abstract: A pile fabric, which may be used, for example, in carpets and in terry toweling, comprises a backing and a pile of plied yarns and singles yarns, each of the plied yarns consisting of two or more single yarns which are individually twisted by vortex jet air devices to form an alternating pattern of "S" twists and "Z" twists along their lengths. The singles yarns are joined at their nodes to form a plied yarn in which the spacing between the nodes may be selected to give an increased yarn bulk and with the singles yarns between the nodes false twisted in the same direction, the singles having either an "S" or a "Z" twist. The singles yarn between the fastened nodes are permitted to self-twist together in the opposite direction as the twist direction of the singles yarns, forming a stable self-twisted plied yarn.

Abstract: An improved sensor arrangement for use in an apparatus which travels a detector along ttextilestrand processing machines such as spinning frames for determining the absence of ends of yarn from locations therealong at which such ends normally are present and for thereby locating ends down on the textile strand processing machines. The arrangement disclosed herein includes an optical system defining a light path for focusing light reflected from yarns and a plurality of sensors for receiving light passed along a common light path by the optical system and for generating pulse electrical signals in response to variations in illumination in respective, vertically spaced and aligned, fields of view.

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: Spinning machine apparatus is provided which includes a vacuum housing for a spinning rotor which has a moveable housing section which forms a lid. A brake lever which serves to actuate a rotor brake simultaneously serves as a locking lever for locking the moveable housing section in the closed position such that movement of this lever from the locking position automatically actuates the brake so that the rotor is braked prior to actual opening movement of the housing section forming the lid.

Abstract: An apparatus for manufacturing filaments of varying denier includes electrically activated tension means disposed between a feed roller and a draw roller for engaging the filament and producing a variable tension thereon when activated. A circuit arrangement for randomly activating the electrically activated tension means includes a thermally activated switch.

Abstract: Yarn comprising filaments of high and low elongations is false-twist heat-set. The yarn tension upon passage through the false twisting device is increased to a level sufficient to break the low elongation filaments, giving a yarn with a spun-like hand.

Abstract: A thermometer arrangement in which the active element is a block of birefringent material between two optical planar polarizers. Light energy from a source is conducted through a fiber optic light conductor through the input polarizer, the birefringent element, the output polarizer, and via a second fiber optic light conductor, into a light-to-electrical transducer. Polarization plane rotation effected by the birefringent element in combination with the fixed polarizers effectively modulates the light intensity from an arbitrary level (such as substantially zero at some selected temperature) so that the transducer output signal is a function of temperature. A reference accounting for light source variations, etc. is provided by a separate fiber optic conductor, a second transducer, and a differential detector. Linearizing means are also shown.

Abstract: A device is disclosed for testing the useful life of particulates, such as, steel shot, grit or other abrasives. The device employs a blast wheel for throwing the shot at high velocity against an annular target. The wheel and target are mounted on a rotating structure so that substantially all of the spent particulate is continually returned to the wheel via a recirculating tube. In this manner accurate evaluation of a particulate sample under test can be accomplished.

Abstract: Two closely spaced apart, perforated suction drums are provided, which have parallel axes and confronting peripheral surface portions defining between them a region which is triangular in cross-section and adapted to receive fibers flying through a flight region which precedes said triangular region in a direction that is transverse to said axes. Suction means are operable to provide a suction zone in each of said confronting peripheral surface portions. Said drums are operable to rotate in the same sense so that fibers received in said triangular region and attracted to said suction zones by the operation of said suction means are twisted together by said drums to form a yarn. Yarn-withdrawing means are operable to withdraw said yarn from said triangular region toward one end thereof while holding said yarn against rotation. A throwing member is operable to move in said flight region toward said one end thereof in a plane which is transverse to said direction.

Abstract: A yarn severing and holding apparatus for use in a system for changing spinning cans in which synthetic filamentary yarns are deposited. In this apparatus an arm supported, independently of the can transporting means, for rotation at a level between the yarn feeding device and the cans, has a slide mounted thereon for traversing movement lengthwise of the arm. This slide carries a cutting device and also a device for clamping the severed end of the yarn deposited in the full can. This insures that the cut off end of the yarn cannot drop back into the full can and that on the other hand the free end can drop into the still empty can immediately after the cutting operation. Moreover, the severing and holding apparatus is physically divorced from the can-transporting means so that the latter may be designed for either rotational or translational movement.

Abstract: In an open-end spinning apparatus provided with a fiber feed mechanism, a combing roller for separating a bundle of fibers supplied from the feed mechanism into individual fibers, a spinning rotor for receiving individual fibers delivered from the combing roller and for forming a ring shaped bundle of fibers on a fiber collecting zone formed at an inside wall position having a maximum lateral diameter with respect to a rotational axis thereof, and a yarn guide means for introducing a yarn formed in the spinning rotor toward a takeup mechanism disposed at a position outside the spinning rotor, a plurality of air streams are directly blown toward the fiber collecting zone by means of air stream creating means so that the ring shaped bundle of fibers deposited on the fiber collecting surface is urged toward the inside wall of the rotor at this collecting zone by the action of the air stream together with the centrifugal force of the fibers which is created by the rotation of the spinning rotor.

Abstract: A traveler for use on vertical textile yarn spinning or twisting rings. The traveler comprises two parts. A ring contacting part bears against the spinning ring as the traveler travels around the ring and a yarn contacting part engages the yarn as it passes from the feed rolls to the bobbin on which the spun yarn is wound. The ring contacting part is joined to the heat-conductive, yarn contacting part so that a substantial portion of its surface is exposed to the atmosphere. As the traveler spins around the ring, heat generated in the area where the yarn frictionally engages the yarn contacting part is conducted away from this area and is dissipated into the atmosphere due to the motion of the air past the exposed surface of the yarn contacting part. The yarn contacting area is thereby cooled.

Abstract: In a method for the manufacture of twistless or substantially twistless yarn a sliver or a roving of staple fibres is used as basic material. The sliver or the roving is wetted by a liquid mixture containing a latent solvent for at least a portion of the staple fibre material and drafted in a wet condition to form a thinner fibre strand, which is subsequently false twisted and bonded. The fibre strand is bonded by activation of the latent solvent under an increased temperature, and dried under evaporation of the solvent.

Abstract: A method and apparatus is provided for accommodating transfer of yarn supplied by an open-end spinning machine from a mobile piecing device to a spinning assembly. The yarn transfer apparatus includes a mechanism for automatically adjusting the speed of the yarn take-off during the transfer from the piecing device to the spinning assembly, for ensuring a continuous uniform denier of the yarn produced both before, during, and after the yarn transfer movement. Preferred embodiments include mechanisms for accommodating the shortening of the travel path between the spinning rotor and a winding spool at the spinning assembly resulting during this yarn transfer.

Abstract: An improved capstan assembly for a rope making machine in which separate strands of rope are twisted together and drawn through a forming die by the capstan and then directed onto a take-up spool. The capstan assembly includes a single capstan having a smooth cylindrical peripheral wall and a hollow central shaft through which the advancing rope strand is directed. A separating comb is mounted adjacent the peripheral wall of the capstan such that adjacent windings of the advancing rope strand around the single capstan are engaged and kept separate by the comb teeth and thereby are prevented from overlapping and binding.