Abstract: A method of open-end spinning textile yarn provides the steps during spinning of feeding fibres to a spinning means acting to twist the fibres fed thereto into a tail end of a yarn and withdrawing from the spinning means the continuously formed twisted yarn, and the further step following an interruption in spinning and preparatory to restarting spinning of applying with the spinning means stopped a longitudinal reciprocating motion to the tail end of the yarn to remove excess twist therefrom.

Abstract: The present disclosure is directed to an open-end spinning machine for the open-end spinning of textile fibres, in which there are provided a spinning element, a fibre opening roller, means for feeding fibres in the form of a sliver to said opening roller, and fibre conveying means for conveying in discrete form to said spinning element fibres opened by said opening roller. The opening roller comprises a boss portion, an end wall portion extending radially outwardly from said boss portion at one end thereof, and a cylindrical shell portion extending from said wall portion over and in coaxial relation to said boss portion to form an annular cavity between the outer surface of said boss portion, the inner surface of said wall portion and the inner surface of said shell portion.

Abstract: Apparatus for open-end spinning textile yarns comprises fibre feed means, spinning means to receive fibres from the fibre feed means and to spin them into a tail end of yarn for continuous withdrawal of yarn from the spinning means, and yarn withdrawal means to withdraw the yarn along a yarn withdrawal axis to a yarn delivery aperture of the spinning means and to form the yarn into a package. The yarn withdrawal means comprises a package forming assembly and a yarn engaging means. The package forming assembly is operative to form a package of the yarn and has yarn distributing guide means to distribute the yarn on the package. The yarn engaging means is operative to engage the yarn in its passage between the yarn delivery aperture and the yarn distributing guide means.

Abstract: The apparatus includes a plurality of bobbin transporting members for transporting bobbins from supply sources to belt-like conveyors extending along opposite sides of a spinning machine with which the apparatus is associated. During normal operation of the apparatus, oscillatorily-movable drive means imparts continuous, synchronous oscillatory movement to the bobbin transporting members. The stop-motion promptly halts operation of the apparatus in response to significant variation in regular oscillatory movement of any of the bobbin transporting members, which variation might be caused by a bobbin-jam within the apparatus. In the preferred embodiment of the invention, the various switch elements of the stop-motion circuit are all mounted by a single bracket member for convenient positional adjustment and installation in an area of the apparatus distal from the paths of travel of the bobbins transported through the apparatus.

Abstract: First suction forces of relatively large magnitude and small duration, and second suction forces of relatively small magnitude and large duration, are alternatively applied to the trash outlet of each trash box of a multi-station open-end spinning machine during its operation. The large-magnitude suction forces rapidly evacuate from each box trash previously introduced therein by a beater roll disposed adjacent its inlet. The small-magnitude suction forces discourage escape of the trash from the boxes, pending evacuation thereof. Preferably the small-magnitude suction forces are applied simultaneously and substantially continuously to the outlets of all of the trash boxes, and the large-magnitude suction forces are applied successively to discrete groups of the boxes.

Abstract: The doffing apparatus services a textile machine having a row of bobbin-receiving spindles extending in its length direction, and includes an elongate bobbin grasper member which projects generally parallel to the row of spindles and is movable relative thereto between elevated and lowered positions for the purpose of transporting bobbins to and from the spindles. The stop motion device is actuable by impedence of the aforesaid movement of the bobbin-grasper member, as reflected by relative movement that then transpires between components which support such member.

Abstract: A freely-rotatable fluted roll compressively engages the sliver projecting upwardly from a sliver can as such can is doffed from a textile sliver coiling apparatus. The roll exerts compressive and snubbing forces upon the sliver strand extending between the sliver can and the coiler head of the apparatus, causing separation of such strand during and in response to the can changing movement of the can away from the coiler head. Also disclosed are a preferred design of, and a preferred mounting arrangement for a sliver-separating roll usable for the foregoing purpose.

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: Resilient mounting means for a traveler cleaner fixed to a textile ring holder includes a resilient member, formed from a vibration damping material such as rubber, fixed into or integral with a textile ring holder formed either of such material itself, or of metal, or of a combination sandwich type construction in the region in which the cleaner is to be fixed to the ring, and having embedded within and bonded thereto a threaded sleeve or stud to receive the cleaner. This mounting means permits the traveler cleaner to be resiliently restored to its aligned position relative a spinning or twisting ring and its traveler following accidental impact.

Abstract: Spindle units adjacent each side of a textile twisting machine are mounted, for noise abatement purposes, in vibration insulated relationship to the frame of the machine, to all spindle units adjacent the other side of the machine, and preferably also to other spindle units adjacent the same side of the machine. The spindle units are so mounted by a plurality of rigidly constructed but resiliently supported mounting assemblies. Each assembly includes an elongate spindle supporting member extending longitudinally of the twisting machine adjacent one or the other side thereof, and at least one transverse stabilizing member extending laterally inwardly therefrom toward, but terminating short of, the opposite side of the machine.

Abstract: In replacing a completed yarn package by an empty bobbin tube in a yarn processing machine, the running yarn delivered to the completed yarn package is severed, the severed yarn is delivered to a yarn collection zone, the running yarn is engaged with an empty bobbin tube without halting delivery of the yarn from the yarn collection zone, the completed yarn package is removed from a bobbin tube support and replaced by the yarn engaged with the empty bobbin tube while the yarn continues to be delivered to the yarn collection zone, and the empty bobbin is rotated to wind on yarn delivered to it to form a package thereon.