Abstract: Method and apparatus for splicing the ends of spun yarn includes means for inserting the yarn ends into a hole associated with a splicing nozzle having one or more air jet pipes, in which hole the ends are subjected to an air jet to join them each other. Yarn end control nozzles for the yarn on the package side and the yarn on the bobbin side are disposed at each end of the splicing nozzle to suck the yarn ends in the corresponding yarn end control nozzles, respectively and to keep the yarn ends free therein.

Abstract: Continuous filament rope and method of making same whereby high strength continuous synthetic filaments may be used to provide a rope which in use will have a strength approaching the theoretical strength of the fibers therein. The rope is made by combining a plurality of filaments and twisting the filament group into a light twine in comparison to the rope ultimately desired. The twine is then impregnated with a suitable flexible resin system and wound in a loop having at least a substantial number of turns of the twine. Thereafter the loop is allowed to twist back on itself in response to the twist initially set in the twine so as to form a rope-like center section with loops at each end thereof. Curing of the flexible resin system results in a suitable flexibility of the rope while providing for abrasion and fraying resistance. The loops at the end of the rope may be looped over hooks or pins when in use, with the resulting strength of the rope approaching that of the combined fiber strength.

Abstract: Method and apparatus for introducing a first strand into a continuously moving second strand are provided by positioning the first strand in spaced relation along the length of the continuously advancing second strand, and laterally moving the first strand to engage the continuously moving second strand such that the first strand is continuously advanced with the second strand.

Abstract: This apparatus is used for splicing the ends of the spun yarn by inserting the yarn ends into an air jet nozzle having one or a plurality of air jet pipes, in which they are doubled and subjected to an air jet to join each other. Yarn end cutting and holding devices for the top yarn and the bottom yarn are disposed at the both ends of a yarn inserting hole of the air jet nozzle. An automatic yarn inserting device may be provided with the apparatus to introduce the yarn ends into the yarn inserting hole and into the yarn end cutting and holding devices.

Abstract: A device for joining together two ends of a yarn in order to recreate the initial structure of the yarn comprises two heads provided with radial slots and fixed to rods which are rotatable in order to take up the yarn by means of the slots and to wind the yarn about the rods. The free ends of the yarns are untwisted and subjected to electrostatic fields created between the heads and an annular electrode. Rotating the heads in the opposite direction then causes the yarns to unwind from the rods and the fibres of the two ends of the yarn to twist together, the yarn then being released.

Abstract: Broken ends of a spun yarn are introduced into a hole of an air nozzle device from upper end and lower end of the hole respectively and the yarns are doubled. The doubled yarns are slightly slacked and subjected to air jetting by the air nozzle device to produce a spliced joint. The distribution of twists inherent of spun yarns is changed in the region of the spliced joint by twists imparted to the yarns by the air jet nozzle and at least one fixed portion of the new twist distribution is formed in the spliced joint.

Abstract: Method and device for joining together an upper and a lower thread, which includes moving at least one first thread feeder from a thread pick-up position to a thread transfer position, inserting the upper and the lower threads into a longitudinal slot formed in a chamber, holding the threads in the slot until compressed air is admitted to the chamber, and at given positions during the movement of the first thread feeder; closing the chamber with a lid, automatically severing the ends of the upper and lower thread and blowing compressed air into the chamber.

Abstract: A knotting mechanism for use on open-end spinning machines for performing a knotting process on yarn produced on machines. The knotting mechanism is mounted so that it can be moved longitudinally along the spinning machine and transversely to the spinning machine to a knotting position. A switch-on mechanism is activated responsive to the knotting mechanism being moved transversely to the spinning machine to a knotting position. A driving mechanism is provided for initiating the knotting process on the yarn upon being activated. A release mechanism is operably connected to the driving mechanism for activating the driving mechanism responsive to the switch-on mechanism being activated. A timing device de-activates the driving mechanism after a predetermined period of time sufficient to carry out the knotting process and prevents the driving mechanism from initiating another knotting process without the switch-on mechanism being further de-activated and re-activated.

Abstract: Yarn portions, particularly yarn ends, are joined together without using a knotting technique by positioning the yarn portions alongside each other and introducing such portions through an inlet of apparatus having two passages extending separately away from the inlet. Fluid flow is directed alternately along one then the other of the passages so as to move the yarn portions backwards and forwards between two passages so as to cause the yarn portions to be joined or spliced together.

Abstract: In a thread-joining device capable of traveling from spinning station to spinning station of a spinning machine having respective means for feeding sliver thereto, a device for measuring a dimension of the sliver at the respective feeding means of the spinning stations.

Abstract: Method of joining textile threads by means of an apparatus having a vortex chamber formed with an elongated slot for introducing therein threads that are to be joined, the threads being insertable into the vortex chamber adjacent one another and being held by clamping devices outside the vortex chamber, the threads being twistable together in the vortex chamber by compressed air supplied thereto and being thereby joined, which includes inserting the threads to be joined loosely and without tension into the vortex chamber so as to be looped about opposite end rims of the vortex chamber; twisting together the threads disposed loosely and without tension in the vortex chamber while they are tightly held by the clamping devices and slackening the thread tension to such an extent that a false twist imposed on the textile threads during twisting together of the threads and consequent shortening of the thread length causes the textile threads to come into contact with the end rims of the vortex chamber.

Abstract: A marine rigging apparatus for splicing new wire cable of the type having twisted wire strands to a portion of worn wire cable taken from a rotatable drum on a fishing vessel docked or moored adjacent a dock, said apparatus including a motor vehicle having a base mounted thereon, at least one bearing mounted on the base, at least one drum rotatably supported by the bearing, a hydraulic motor operatively connected to the drum for rotating the drum to wind the worn cable onto the drum, a rigger's vise mounted on the base for clamping portions of cables to be spliced with the cables being restrained against rotation about the axes of the cables, and a twister device mounted on the base for rotating one of the cables in a direction opposed its natural twist to relieve the tension in the strands of the cable at a desired location on the cable to permit an efficient and quick splicing of the other cable to the twisted cable.

Abstract: A pneumatic tow splicer for splicing a plurality of pairs of yarn segments into joints includes a device for dividing the tow into a plurality of substantially equal-sized segments prior to splicing. The dividing device includes a plurality of vertical flexible guides pressed together. A bundle of tow is pressed between the guides and the pressure on the guides is released and they spring apart separating the tow into substantially equal-sized segments.

Abstract: A method is disclosed of splicing together two rope lengths each of which is made up of a plurality of strands individually covered with thermoplastic material. Each alternate strand of each rope length is unwound back to a predetermined point and one of the strands of the other rope length is wound in its place back to that point. This process is repeated for each of the other strands, with the respective points at which the winding and unwinding process is terminated being spaced apart along the length of the splice with respect to each other. At each of these points, the end regions of the two strands of each pair at that point are placed together and then bonded together by means of their coverings of thermoplastic material. An outer covering of thermoplastic material may then be placed over the entire splice.

Abstract: False-twisted yarns are continuously fed to a locking mechanism on a rotating guide wheel. The locking device has a clamping shoe for engaging the yarn, after which the direction of false twist is reversed. Two additional clamping shoes then engage the yarn upstream and downstream of the first clamping point. The first shoe is then retracted to permit the twist between the additional shoes to cancel, and a fluid vortex is used to entangle the yarn filaments, locking the node.

Abstract: An apparatus and method for forming an eye at the end of a multiple-stranded rope, string or other cordage by dividing the strands into bundles, twisting them longitudinally, overlapping the end portions and reverse twisting them to form a flemish eye. The apparatus includes a frame and rotatable strand retaining clamps to retain and twist the strands of the string to form the desired eye, a string retaining means to help position the string, and rotating means to rotate the strand retaining clamps in either direction.

Abstract: Method and apparatus for introducing a first strand into a continuously moving second strand are provided by positioning the first strand in spaced relation along the length of the continuously advancing second strand, and laterally moving the first strand to engage the continuously moving second strand such that the first strand is continuously advanced with the second strand.

Abstract: A marine rigging apparatus for splicing new wire cable of the type having twisted wire strands to a portion of worn wire cable taken from a rotatable drum on a fishing vessel docked or moored adjacent a dock, said apparatus including a motor vehicle having a base mounted thereon, at least one bearing mounted on the base, at least one drum rotatably supported by the bearing, a hydraulic motor operatively connected to the drum for rotating the drum to wind the worn cable onto the drum, a rigger's vise mounted on the base for clamping portions of cables to be spliced with the cables being restrained against rotation about the axes of the cables, and a twister device mounted on the base for rotating one of the cables in a direction opposed its natural twist to relieve the tension in the strands of the cable at a desired location on the cable to permit an efficient and quick splicing of the other cable to the twisted cable.

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 yarn piecing and knotting device for use in a pneumatic spinning machine for spinning slivers directly into a yarn by air jetting nozzles is disclosed. This yarn knotting device comprises means for retaining a spun yarn temporarily during a period ranging from the time of completion of the operation of a yarn knotter for connecting the spun yarn with a yarn taken out of a package to the time of resumption of winding.

Abstract: A method of and apparatus for piecing up the broken yarn in an open end spinning machine wherein the yarn breakage that has occurred in a spinning unit of the machine is pieced up or jointed with the fiber material supplied into a rotor while the spinning unit is operated at the ordinary high spinning speed and while the various elements of the spinning unit are driven at the same speed as the high spinning speed.

Abstract: Thermoplastic yarn ends are spliced by overlapping side-by-side and spinning with an air jet circumferentially around a longitudinal axis of a cylindrical cavity with sufficient initial slack to insure engagement with the wall of said cavity. Heat is generated by the spinning action and concentrated in high twist nodal points giving rise to plasticization of the yarn and bonding of adjacent fibers. The spinning device has gripping elements for securing the yarn ends and introducing the necessary predetermined slack.

Abstract: A running yarn is spliced into a running tow by entangling filaments of the tow with and about filaments of the yarn with an air-jet device, the leading portion of the yarn is severed to leave a small protruding tail, and the tail is entangled within the tow with a second air-jet device. The air-jet devices comprise two halves which are separated and positioned on each side of the tow until a splice is to be formed; they are then closed to form cylindrical treatment chambers of diameters which impart a rounded shape to the tow, so that filaments are entangled about the yarn by the air jets. The air-jet devices are preferably designed to provide a forwarding action on the filaments.

Abstract: The method and apparatus of this invention comprises an improvement over the prior art wherein the splicing of two yarns is done in a zone entirely smooth-surfaced and non-resilient on any interior surface which can contact the yarns. This improved method and apparatus surprisingly was found effective for yarns which had been very difficult to splice with the old method and apparatus.

Abstract: This invention relates to surgical instruments used, for example, in approximation of the sternum after median sternotomy. The device according to this invention is utilized to tighten applied sternal sutures, such as wires, by first winding up the sutures on a spool, then twisting the sutures for fixation and to provide an appropriate final tension. A cutting mechanism is included for severing the sutures so as to leave a short twisted segment, resulting in a joint secure against slippage. Waste sutures are stripped from the spool against a stripping plate by axial translation of the spool. A crank and sleeve may be included to facilitate twisting the sutures for fixation and final tensioning. An optional ratchet or similar mechanism may be used to prevent unwinding of the sutures from the spool during operation.