Abstract: An improved core for mounting on one or more core engaging elements such as a pair of chucks and a method of making an improved core are provided. The core is adapted to wind and unwind material thereon. The core comprises a high coefficient of friction coating disposed on the inner surface of the core to improve core-chuck interaction.

Abstract: Embodiments of the present invention generally relate to a rotation device in an RTP chamber. The rotation device includes a cylindrical inner race, a plurality of thrust bearings and a plurality of radial bearings. During operation, the bearings create a gas cushion preventing the rotating parts from contacting the stationary parts.

Abstract: Embodiments of the present invention generally relate to a rotation device in an RTP chamber. The rotation device includes a cylindrical inner race, a plurality of thrust bearings and a plurality of radial bearings. During operation, the bearings create a gas cushion preventing the rotating parts from contacting the stationary parts.

Abstract: An ultrahigh molecular weight polyolefin yarn of the present invention has been drawn and has a melting point that is determined as a maximum peak temperature measured by a differential scanning calorimeter (DSC) at a temperature rise rate of 20° C./min, and the melting point is higher than a melting point of the yarn before drawing. In a production method of the present invention, a drawing bath (3) that includes a hollow yarn path (14) and a jacket portion (13) in which a heated liquid circulates is placed in a drawing zone, and the yarn is heated and drawn while passing through the yarn path (14) in a non-contact manner. A drawing device of the present invention includes a feeder (1) for feeding a yarn, a drawing bath (3) for heating and drawing the yarn, and a winder (5) for winding up the drawn yarn. The drawing bath (3) includes a hollow yarn path (14) and a jacket portion (13) in which a heated liquid circulates.

Abstract: A device comprising: (a) a body portion including: (i) a first end and ii, a second end; (b) a holder at the first end; (c) a holder at the second end; (d) a rotation device at the first end in communication with the holder at the first end; and wherein the holder is fixedly attached to a split gear having a channel therethrough so that one or more flexible mediums may be placed through the channel and removed from a work area located between the holder at the first end and the holder at the second end.

Abstract: The spindle (1) comprises, in proximity of one end, an axial locking member (21) of the winding tube (3). The locking member can assume an active condition of axial locking of the tube as a result of rotation of the spindle and an inactive position when the spindle is not moving.

Abstract: The invention relates to a core (10) for a spinning bobbin and for receiving a windable material. The core (10) consists of wound strip material (11). Adjacently lying portions of the strip material (11) overlap one another. Production is performed by winding on a winding mandrel (14).

Abstract: A spinning rotor for open-end spinning machines and a method for balancing the spinning rotor in the course of a single clamping process by removing material from a cylindrical-shaped section of the collar (20) of the rotor cup (19) to form an identification mark (21) thereon sufficiently to offset an imbalance and equalize the mass of the rotor. The mark (21), which preferably consists of a combination of a graphic symbol (22) and lettering (23), is used for identification and information.

Abstract: A hollow spindle, in particular for the manufacture of elastic twisted yarns, has a thread channel (9) extending coaxially with respect to the axis of the spindle (A), through which thread channel is axially moved a yarn (6), in particular an elastic core yarn. The thread channel (9) has ribs (10) on its inner surface (8a), which extend in peripheral direction or helically and project inwardly over the surface (8a), so that the yarn (6) running through the thread channel (9) rests only pointlike on the ribs, otherwise, however, is supported at a distance from the inner surface (8a).

Abstract: A method for twisting a pair of moving strands uses a winder assembly 510, which is mounted on a first shaft 140 and rotates around a cylindrical drum 110. Twisted wire is wrapped in adjacent convolutions around an exterior surface of the cylindrical drum, which is mounted on a second shaft 150. The exterior surface is energized to advance the convolutions from its input end to its output end; and an unwinder assembly 520 is mounted on a third shaft 160 at the output end of the drum. The shafts are coaxial with each other and each is capable of independent rotational movement. The volume of strand material stored on the drum may be varied by changing the relative rotational speeds and directions of the different shafts. A twist in one direction is imparted onto the strand pair when the number of convolutions stored on the drum is increased; and a twist in the opposite direction is imparted onto the strand pair when the number of convolutions stored on the drum is decreased.

Abstract: A spinning-machine spindle rotatable about an axis has an upper cop-holding region and a lower nonsmooth reserve surface. The reserve surface is formed as a substantially uniform array of tiny pits separated by a raised continuous land extending as a continuous grid over the surface. Normally the pits are of pyramidal shape and the land lies substantially on a surface of revolution centered on the axis.

Abstract: A directly motor-driven spindle assembly in a rotary shaft having one end supported on a bearing and the other end connected to a load a, driving apparatus fixed to the rotary shaft to rotate the rotary shaft, and control apparatus for controlling the movement of the rotary shaft toward the side of the load according to the movement of the rotary shaft from a predetermined position. The control apparatus prevents the jumping motion of the rotary shaft which occurs as the load increases to enable the directly motor-driven spindle assembly to operate at a high rotating speed without the jumping motion.

Abstract: A brushless DC motor-driven spindle assembly for a textile ring spinning frame wherein a shaft for rotatably supporting a bobbin for yarn collection is mounted for rotation about a central axis of rotation in a bolster section and, under certain conditions of operation, for rotation about axes which are incrementally angularly displaced from the central axis of rotation, and including rotor/stator position detecting elements comprising sensed elements mounted on the motor rotor for rotation therewith and sensing elements mounted in fixed position relative to the rotor and adjacent the path of movement of the sensed elements so as to maintain the same radial distance between the sensing elements and the sensed elements during incremental angular displacement of the axis of rotation of the shaft and motor rotor.

Abstract: A method and apparatus are disclosed for wrapping a cover yarn onto an elastic core yarn utilizing a "producer" package directly. The disclosed apparatus eliminates the conventional rewinding step used by garment material manufacturers.

Abstract: A ring spinning machine has a direct drive spindle rotatably supported by an upper bearing in a bolster and connected to a rotor of a spindle motor having an upper structure including upper coil end of a stator thereof. A ring is movable up and down along the spindle to guide a yarn to be wound on a bobbin carried by the spindle. The inside diameter of the ring is determined in relation to the size of the upper structure of the spindle motor such that the upper structure can be received at least partially in the ring when the ring is moved to the lower end of its vertical stroke. The length of the unsupported portion of the spindle is reduced to increase the critical or resonance speed of the spindle, thus enabling the spindle to operate at an increased speed.

Abstract: A spindle apparatus for winding fibers has a spindle which is directly fixed to a rotor of an electric motor. One of a pair of magnetically-coupled thrusting members is fixed to a rotary part of the apparatus, while the other of the thrusting members is fixed to a stationary part of the apparatus, so that a downward thrusting force is applied to the spindle to prevent lift of the spindle during rotation thereof.

Abstract: With the constant increase in spindle speeds, the attachment of the bobbin to the spindle becomes more difficult. To avoid detachable bobbins, the bobbin is integrated with the spindle. The spindle is installed together with its integrated bobbin. Yarn is wound on the spindle bobbin. In a modified version, there is a bobbin core tube firmly attached around and on the spindle core.

Abstract: An automatic spindle with a propeller guide and a hook provided in front of an extension of the propeller guide, the hook being attached to a filament for preparatory spinning, the back-pull given by virtue of such an arrangement serving to bring the propeller guide upwards so that a positioning rotation may be produced upon the frontal tip of the propeller guide as a plurality of engaging teeth provided over the perimeter of the sleeve that is acting upon and as fitted to the perimeter of the propeller guide are engaged respectively in the helical threads over the propeller guide. Thus the string or rope fastened to the frontal tip of the propeller guide can be twisted. A feeder is clamped to the tail end of a hand cone to accommodate the mounting of wires meant for spinning processing, and the front end of the hand cone is fitted with a clipper, thereby serving to feed the wire straight by means of the feeder in the exercise of fastening of objects, and to cut the wires.

Abstract: A bobbin holder is provided for holding one or more bobbins of thread of varying heights in superimposed positions and adapted for being loosely and removably inserted into a bobbin carrier of a textile machine. The bobbin holder includes an elongate tubular body for receiving one or more hollow bobbins of thread on the outside thereof along the axial length thereof, mechanisms for varying the length of the elongate body for accommodating bobbins of varying heights, and a radially-outwardly-projecting support carried on the lower end of the tubular body for supporting the bobbin or bobbins of thread on the tubular body. The elongate body preferably comprises at least two tubular portions connected together at respective ends thereof by the length varying mechanisms.

Abstract: A spool retainer and method are presented which greatly increase the speed and efficiency of textile workers in changing spools on yarn covering machines. The spool retainer has an outer sleeve resiliently affixed to an inner plunger which allows the operator ease and convenience in changing yarn spools and make the doffing operation less expensive and time consuming.

Abstract: A rigid core for a textile yarn package particularly for dyeing is cylindrical in shape, corrugated over the whole outer peripheral surface corresponding to the package, and has a part situated at one end which is provided with a groove, incorporating perforations of a maximum diameter of 2 millimeters, which is intended for forming a yarn reserve, a central part perforated with tapered orifices, wider at the outer surface than the inner, with an angle of taper, relative to the axis of the respective orifice, being between 2.degree. and 80.degree., preferably between 20.degree. and 70.degree., and two interengably shaped ends to permit the fluid-tight nesting of the cores on each other during the dyeing.The method of using such a yarn package in which a textured continuous polyester yarn is reeled at a speed of between 400 and 1,000 m/min.

Abstract: A stop spindle for textile machines, particularly spinning and twisting machines. A ferromagnetic clutch element, formed e.g. by a circular disc, is mounted axially displaceably between the whirl of the stop spindle and a brake lining behind which there is mounted an electromagnet. The brake lining is made of non-magnetic material and is mounted between the pole shoes of a permanent magnet. The electromagnet is energized by an electric pulse so as to create a magnetic field which is additive with respect to the magnetic field of the permanent magnet, whereby to start the driving of the spindle; the electromagnet is energized by an electric pulse so as to create a magnetic field which is substractive with respect to the magnetic field of the permanent magnet whereby to stop the driving of the spindle and to brake it.

Abstract: In a braider carrier comprising a main body adapted to move on a base of a braider, a plate rotably mounted on the main body having a ratchet on the bottom, a latch pivoted to the main body and having a pawl adapted to engage and disengage from the ratchet, a vertical operation rod extending from the main body, said rod being spring loaded and operatively connected at the lower end to said latch for pivoting movement about a guide rod for guiding one end of payed out material for braiding, the improvement comprising means for converting said braider carrier from a wire braider carrier to a yarn braider carrier by modification of the top of said plate comprising the addition of projections adapted to engage tubes onto which yarn is wound.

Abstract: A twisting spindle driven by an individual electric motor wherein fastening of the body of the motor as well as maintaining and guiding of the barrel of the spindle are effected via a rigid sleeve surrounding the barrel, the sleeve passing through the frame and serving as a cage for anti-friction bearings which permit rotation of the spindle, and having at its ends two collars, one fastened elastically to the frame and the other rigidly connected to the body or stator of the motor.

Abstract: A bobbin drive has a support whose upper and a lower wall contain a motor with upper and lower shaft portions projecting through these upper and lower walls. A bobbin-support spindle is fixed on the upright shaft above the upper wall. A lower journal partly immersed in a lower body of oil carried in a lower sump rotationally supports the lower shaft portion adjacent the lower wall. An upper roller or ball bearing rotationally supports the upper shaft portion adjacent the upper wall and is lubricated from an upper oil reservoir provided immediately therebelow.

Abstract: The invention relates to a spinning or twisting machine with a plurality of upright textile spindles, wherein the spindle shaft of each textile spindle is coaxially firmly attached to the rotor shaft of an electromotor and wherein the housing of the electromotor includes upper and lower bearing brackets that are disposed on a spindle rail and for the purpose of simple and precise centering of the electromotor housing these bearing brackets are radially adjustable on the spindle rail independently of one another.

Abstract: A top-drive filling spindle having wear on its tapered tip can advantageously be retipped by cutting the worn tip thereoff up to a predetermined point thereon; boring a hole into the middle of said cut spindle tip; placing a male through hardened replacement tip in said hole; securing the tip thereon; and, grinding the thusly secured sleeve to the standard taper for top-drive filling spindles. With the application of the through hardened sleeve, it is anticipated that spindle wear would not occur for perhaps six to twelve years or more--a two to three fold increase over the life of spindles currently used by those skilled in the art.

Abstract: Spinning wheels, equipped with spindle for a flyer and bobbin, are provided with a second and detachable spindle which can be fitted into and locked in the outside orifice of the spindle holding the flyer and the bobbin, to allow the spinning of yarn of larger size or irregular size which would otherwise not pass through the orifice of the spindle holding the flyer, thus allowing the spinning of yarn of any size on the same spinning wheel.

Abstract: The invention concerns a device for up-twisting directly a spinning package having the shape of the cake. According to the invention, the device comprises a vertical spindle driven in rotation at constant or variable speed. Centering and positioning means are provided for the cake on the spindle, said means preferably comprising two cones placed in opposition and fitted at each extremity of the cake. The cones are characterized by the lower cone being secured to the spindle axle and the package being positioned between the two cones by means of a locking element which connects the lower cone to the upper cone. Preferably, the upper cone is associated with a cap flyer which projects beyond the outer edge of the package. The invention applies itself particularly well to up-twisting.

Abstract: An improved wood textile bobbin which is provided with two layers of protective coatings, the first layer being made up of ricinoleate diphenyl methane diisocyanate prepolymer (MDI) trifunctional polyether polyol (TPP), and the second layer being composed of MDI, TPP, acrylic copolymer, and to a process for producing such a bobbin.

Abstract: A noise and vibration attenuating support mounts a rotating member that tends to tilt about and translate along axes transverse to its axis of rotation. The support incorporates a body having mass and a moment of inertia with respect to an axis through the center of gravity of the body. Resilient elements, which are secured to the mass body, mount the rotating member resiliently relative to the mass body and the mass body resiliently relative to a second member. When mounting the rotating member, the support circumscribes and is coupled to the member such that the center of gravity of the rotating member is spaced along the axis of rotation from the center of gravity of the mass body. The support also predominately determines a translational natural mode of vibration with an associated natural frequency at which the mass body translates in resonance along axes transverse to the axis of rotation of the rotating member.

Abstract: A top-drive filling spindle for use in the manufacture of textile yarn is provided wherein the tapered tip thereof is of a through hardened steel material that would more readily resist wear caused by the driving action of the quill disposed thereon. A top-drive filling spindle having wear on the tapered tip thereof can advantageously be retipped by grinding the worn tip to a predetermined size; applying a sleeve of through hardened steel or the like thereover; securing the sleeve thereon; and, finally grinding the thusly secured sleeve to the standard taper for top-drive filling spindles. With the application of the through hardened sleeve, it is anticipated that spindle wear would not occur for perhaps six to twelve years or more -- a two to three fold increase over the life of spindles currently used by those skilled in the art.

Abstract: An improved device for supporting a spindle of an open-end spinning apparatus is provided with a ring shaped resiliently yieldable member rigidly disposed in a space between a bearing supporting the spindle and an inside cylindrical wall of a bushing member, and an additional ring shaped member rigidly disposed in the above-mentioned space separately from the resiliently yieldable member. To prevent accumulation of heat in the spindle, a plurality of grooves are formed on the peripheral surface of the bearing and/or inside surface of the resiliently yieldable member, and/or the additional member, respectively.

Abstract: A high-speed winding apparatus for producing a filamentary spool package on a spool sleeve including spool holder means which engages the spool sleeve and which is rotatably mounted by means of a first set of anti-friction bearings onto a spool carrier which in turn is rotatably mounted by means of a second set of anti-friction bearings onto a support member. Drive means are provided to at least rotatably drive said spool holder means either directly or by a friction roll contacting the cylindrical surface of the spool package. The spool carrier is preferably also driven by a common or separate drive means at rotational speed proportionately slower than said spool holder means. The apparatus is especially useful for the take-up winding of filaments, threads, yarns or the like as employed in spin-drawing and high-speed spinning machines requiring linear winding speeds in excess of 5,000 meters/minute and spool revolutions of more than 30,000 rpm.