Abstract: The revolving ring on a spinning machine is rotated by a belt encircling the bottom of the ring holder. The drive pulley is located below the ring upon the spindle rail. An idler is mounted upon the draw works support and directional pulleys are mounted upon the ring rail so that as one portion of the belt from the drive pulley to the ring rail is decreased, that portion of the drive belt from the ring rail to the draw works is increased.

Abstract: The revolving rings on a spinning machine, as seen in U.S. Pat. No. 4,112,666, are rotated by a belt encircling six of the rings. Idler pulleys push the belt tangentially against the rings so that they are driven by the belt being tangentially pressed against them.

Abstract: A drive system for a yarn false twisting apparatus is disclosed which may be readily converted to produce either S or Z twist, and which insures adequate tension of the drive belt. The apparatus comprises a pair of twist imparting members, and a drive belt system for rotating the twist imparting members which comprises a drive whorl positioned to engage a tangential belt, and a series of pulleys having a drive belt entrained thereabout for rotatably interconnecting the whorl and twist imparting members. The whorl and one of the pulleys are mounted coaxially on a whorl support member, which may be selectively positioned in one of two operating positions to place the whorl on opposite sides of the tangential belt. Another of the pulleys is an idler pulley, which is adjustably mounted for movement in a direction perpendicular to the yarn path of travel and so as to permit maintenance of an adequate tension on the drive belt.

Abstract: A yarn false twisting apparatus is disclosed which comprises a support bracket which mounts a pair of twist imparting circular discs, and drive means including a whorl rotatably mounted to the support bracket so as to be tangentially contacted by a drive belt mounted to the central frame of a twisting machine. The support bracket is mounted to the central frame for pivotal movement through 180 degrees to thereby permit selective operation in a first position wherein S twist is imparted to the yarn, and a second position wherein Z twist is imparted to the yarn. Preferably, one of the discs is composed of a thin flexible material, and a pressure applying member is mounted on the support bracket for biasing the flexible disc toward the other disc locally at the twisting zone.

Abstract: A yarn false twisting apparatus is disclosed which comprises a pair of cooperating friction discs which define a twisting zone between opposed friction surfaces thereof. One of the discs is composed of a thin flexible material, and a pressure applying member is mounted adjacent the back side of the flexible disc for biasing the disc toward the other disc locally at the twisting zone to firmly engage the yarn passing therethrough. The discs are laterally movable with respect to each other, and the pressure applying member is movable in a direction perpendicular to the movement of the discs, such that the ratio of twist insertion to yarn speed may be varied.

Abstract: A multi-spindle double twist twisting machine having a belt drive assembly, a spindle frame formed to enclose the belt drive assembly, and traversing rod reciprocating means. The machine may be a horizontal spindle machine with two rows of spindles on each side. A beam mounted independently of the spindle frame extends along each side between rows and supports a drive belt for tangential driving contact with spindle whorls. The belts are commonly driven and reversing rolls are associated with one belt so that it travels opposite the other belt, and compensating rolls are associated with the other belt so that the belts may be of the same length. The spindle frame has two spaced support plates laterally outward of the belt drive assemblies and two cover plates secured to and extending between flanges on the support plates to form an enclosure for the belt drive assembly.

Abstract: A yarn spinning and twisting machine which includes a drive transmission from a drive source to a plurality of spinning rings carried by vertically movable platforms and having a control for delaying the starting of the drive transmitted to the spinning rings at the start-up of the machine and for disestablishing the drive to the spinning rings before the end of the last cycle of the machine to maintain the yarn in taut condition and minimize breakage of the yarn.

Abstract: This invention relates to a tensioning device for a drive belt for controlling the rotation of aligned members such as spindles of textile machines.According to the invention, a pressing roller is mounted at one movable end of an elastic support formed by two parallel tapes of hardened steel the confronting ends of which are fixed in equi-spaced relation by two spacers, while the other end of the support is rigidly fastened to the machine, so that the axis of the pressing roller is displaceable parallel to itself.

Abstract: An apparatus for bringing to rest the rotor of an open-end spinning apparatus which is covered by a cover. The rotor is mounted in a wedge gap formed by freely rotatably support rollers and pressed against the support rollers and driven by a tangential belt. An axial force arising from the support rollers presses the rotor against an axial stop. A lever is provided for lifting the shaft off of the support rollers and against stops for arresting the rotation of the rotor. Compressed air is applied to the rotor when the rotor is being brought to rest for maintaining the shaft of the rotor against the axial stop.

Abstract: An apparatus for bringing to rest the rotor of an open-end spinning device, the shaft of which rotor is mounted in a wedge gap formed by freely rotatable support rollers and being pressed against the support rollers and driven by a tangential belt. An axial force arising from the support rollers presses the rotor shaft against an axial stop and in bringing the spinning apparatus to rest the shaft is moved away from the normal running position on the support rollers to an arrested position off of the support rollers. The shaft extends through bores provided in a pair of spaced bearings. A conically tapering section is provided on the shaft which engages a correspondingly conically shaped wall of the bore for applying an axial force to the shaft when the shaft is moved from the running position to the arrested position.

Abstract: The present invention relates to a method and an apparatus for changing the ratio of the yarn taking-up speed to the number of revolutions of the rotor at the time of yarn piecing and normal spinning. According to the present invention, the ratio of the yarn taking-out speed to the number of revolutions of the rotor at the time of yarn piecing has a different value from that employed at the normal spinning, while the ratio of the yarn taking-out speed to the sliver supply speed is made constant at the time of yarn piecing as at the normal spinning, in a manner such that the spun yarn has fewer number of twists at the normal spinning than that at the time of yarn piecing. The rotor speed may also be simultaneously reduced as the speeds of the take-out and sliver supply are reduced.

Abstract: The revolving ring on a spinning machine as seen in U.S. Pat. No. 4,023,340 is rotated by a belt encircling the bottom of the ring holder. The drive pulley is located below the ring by the spindle rail. An idler pulley moves outward to compensate for the change in distance between the revolving ring and the drive pulley.

Abstract: Apparatus for driving spinning rotors at a plurality of spinning units to an open-end spinning machine is provided which includes a tangential belt extending adjacent rotor shafts of the spinning units, as well as movable pressure rollers for selectively forcing the tangential belt against the respective rotor shafts to drive the same. In order to prevent sliding the tangential belt against the rotor shafts when in the non-driving position, guide rollers are disposed at the side of the tangential belt opposite the pressure rollers, which guide rollers are offset so that a common tangent to the guide rollers is spaced from the surface of a rotor shaft therebetween, whereby the guide rollers serve to hold the tangential belt out of driving contact when the pressure rollers are moved away from their driving positions.

Abstract: In a spinning or twisting machine in which the ring positioned about each spindle and bobbin is carried rotatably by the ring rail. A traveler is carried by each ring. A wheel is located next to each ring. An endless drive belt extends between each ring and wheel. Each wheel is shiftable so as to move the drive belt from a location spaced from the adjacent ring into contact with the ring to cause the ring to be driven rotatably about the spindle and bobbin.

Abstract: Stopping means for an open-end spinning turbine comprises a lever pivotable beneath the shaft of the turbine and the drive belt for the shaft. The lever moves toward the belt and the shaft to sequentially lift the belt off the shaft and lift the shaft from its support rollers.

Abstract: Each station of a row on a multistation yarn texturing machine comprises a common support unit for all driven members of that station, the driven members being interconnected for synchronous operation by a transmission system which includes a coupling member such as a toothed belt, and the support unit being movable for engaging or releasing the coupling member from a single machine drive member common to all the stations of a row and preferably consisting of a shaft with toothed wheels for driving the coupling members.

Abstract: The drive system is used for spinning, twisting or false-twisting machines. The spindles are driven by a tangential drive belt which is tensioned between a drive roll and a tensioning roll. The tensioning roll is mounted by a lever to pivot about a fixed axis. In addition, a rotatable axle is mounted about the fixed axis in order to drive additional working elements of the machine. The tangential belt is maintained under constant tension by a biasing means which biases the lever about the fixed axis.

Abstract: A friction drive for a twist-tube for false-twist texturing of textile yarns is described wherein a continuously running belt rotates a pair of driving rolls, maintained at a constant pressure against the belt, to which rollers for rotating the twist tube are co-axially fixed. The driving rolls are carried at the end of a rod, mounted to slide through a fixed holder and subjected to an axial force by a weight hanging on a cord passing over a pulley having a fixed axis to a pin on the rod. The rolls are so mounted on the rod that they can be arranged to engage either face of the belt. Therefore, the force necessary to press the driving rolls against the belt is reversible. This is achieved by providing the rod with two pins, either of which can be chosen for attachment of the cord and from which the cord will hang in opposite directions over the pulley. This gravity mechanism can be replaced by fluid or electromagnetic means for exerting the force on the rod.

Abstract: The engagement of a rotating drive for the ring of a spinning machine, as seen in U.S. Pat. No. 3,738,094, is improved by placing the drive disc upon a pivoted block, which is controlled by a pitman and a cam lever working against a steel plate.

Abstract: In a textile yarn twister, means for mounting idler pulleys and the drive tape tensioner spring transversely across the width of the twister between its opposing spindle rails resiliently. The pulleys are rigidly supported by and are interconnected with a transverse beam positioned between a pair of opposing spindle assemblies, the beam being vertically interconnected with each of the spindle rails by a resilient, vibration damping, isolation mount. Shock absorber elements are horizontally interposed between the transverse beam and the spindle rails to prevent shearing of the isolation mounts upon start-up or stoppage of the twister. Adjacent transverse beams are rigidly interconnected by elongate rigid members spaced away from the spindle rails to provide, in all, transverse and longitudinal stability of a plurality of the present mounting means relative the spindle assemblies associated therewith.

Abstract: In abstract, a preferred embodiment of this invention is a drive tape tension assembly for use with textile spinning and twisting machines. This assembly is constructed primarily of spring steel and gives the desired control and stops while at the same time eliminating much apparatus heretofore needed to accomplish the same results.