Abstract: A traveller changer in which a first operating portion having a tensor for absorbing the slack of yarn passed through a traveller in a ring spinning frame, and a second operating portion having a yarn hooking lever, a traveller removing element and a traveller mounting elements are provided on a carrier unit, the first operating portion being disposed at a predetermined certain height relative to the carrier unit, and the second operating portion being disposed vertically movably in arrowed directions with respect to the carrier unit so that it can follow up the height of a ring rail.

Abstract: A traveler changing method and an apparatus for carrying out the same capable of automatic traveler changing operation for labor saving. The traveler changing method comprises steps of positioning a traveler at a predetermined position on a ring by turning a bobbin in the normal direction with a roller, drawing portions of a yarn extending through the traveler to the ring, removing the traveler positioned at the predetermined position by a traveler removing device, and putting a new traveler on the ring at a position on the ring where the yarn is contiguous with the ring.

Abstract: Even in a case where increased taper winding is carried out by a yarn winding apparatus to form a cone, both end surfaces of a package is formed to be flat. In a cradle device for a yarn winding apparatus a swinging shaft of a cradle holder is inclined to an angle substantially equal to a taper of a conical bobbin with respect to a horizontal plane.

Abstract: A traverse drum in which a pin crosses a first groove is provided at position defining a short traverse length in an intersection of the first groove and a second groove, and a wall portion extending from a position where the pin crosses the first groove is formed in the second groove extending from the intersection to divide it into two grooves.

Abstract: A two-for-one twisting machine comprising a plurality of two-for-one twisting units arranged in rows, the two-for-one twisting units each consisting of a twisting machine and a take-up device, wherein there is provided a travelling member adapted to travel in front of such plural two-for-one twisting units, the travelling member being provided with a feed package changing means and a take-up package changing means.

Abstract: A package feeding method and apparatus for a yarn twisting machine having a large number of two-for-one twisters of two stage yarn supply type. A package is fed after an end of yarn of the package has been wrapped in several turns of a yarn layer non-existing portion of the package.

Abstract: A device for processing a yarn of a package, wherein a device for processing the yarn of an outer yarn layer of the package and a device for processing a bunch winding yarn of the package are disposed along a feeding path for the package, and the device for processing the yarn of an outer yarn layer includes a yarn knotting device for knotting the yarn of the outer layer of the package at a predetermined position of a surface of the package to form a knot of the yarn while the device for processing a bunch winding yarn includes a mechanism for releasing the bunch winding yarn at an end portion of a bobbin and a mechanism for positioning and fixing an end segment of the yarn.

Abstract: A device for feeding spinning bobbins after spinning to a winder comprises a base supporting a bobbin box thereon, a cover member integrally pivoted about a shaft and being positioned in an opening of the bobbin box to prevent a bobbin from falling when the box is inverted, and a driving mechanism for turning the base and the cover member with the bobbin box upside down to transfer the bobbin box onto a bobbin conveyor, and for moving the cover member to a position at least lower than the bobbin carrying surface of the conveyor.

Abstract: An apparatus for finding an end of a yarn of a spinning bobbin comprising a cutter mechanism located adjacent a path along which a spinning bobbin fitted uprightly on a tray is fed for releasing and cutting a bunch of a yarn on the bobbin, a yarn end pick-up mechanism located next to the cutter mechanism for picking up an end of the out yarn from a layer of the yarn, and a yarn end inserting mechanism located next to the yarn end pick-up mechanism for cutting the yarn end picked up frm the yarn layer into a string of a particular length and for inserting the yarn into a center hole of the bobbin.

Abstract: A bobbin removing apparatus for an automatic winding system comprising a running belt and a bobbin guide member confronting with the belt, the apparatus being so constructed that a bobbin is tightly caught between the belt and the guide member and removed from a bobbin conveying medium by utilization of the motion of the belt.

Abstract: A device for finding an end of yarn from a spinning bobbin produced on a spinning frame. The yarn end finding device includes a suction case, a suction cutter drum in the form of a drum mounted for rotation in the suction case, and a cutter for cutting at a predetermined fixed position an end of a yarn sucked in through one of a number of holes formed in a circumferential face of the suction cutter drum.

Abstract: Device for splicing yarns together by subjecting the superposed ends of yarns to the action of a compressed fluid. A fluid supply system of a fluid treatment section having a yarn splicing member for making a jet of a fluid act on the overlapping section of two yarn ends, and untwisting nozzles for untwisting the yarn ends, and a functional system of a yarn end control unit for cutting and locating the yarn ends are connected to a single driving source.