Abstract: The yarn to be loosened is guided by slots (7;8); it is held on one side thereof and it is cut on the other side. Air is injected by a nozzle (13) for driving the cut end of the yarn into a channel (1), between the bottom (11) of this channel and the longitudinal edge of an adjacent flexible leaf (10) which is vibrated simulatneously at several hundreds of Hz. The air can escape sidewise through a longitudinal opening (4) of channel (1) and entrains the yarn from one side to the other side of the leaf (10) and imparts to this yarn alternatively inverted twists. A further action of the leaf (10) is to pulse the air in the channel and therefore to subject the yarn to intermittently applied pulls.

Abstract: A textile fiber opening and removing apparatus (1) is disclosed having a tower (2) wherein at least one cantilevered arm (5, 6) is supported on the tower in such a manner that the cantilevered arm rotates about a longitudinal axis of the tower and a central axis (31) of a fiber discharge section (11) to various angles. Control means (35) mutually controls and coordinates a lift motor (24) and a traction motor (28) to move cantilevered arm (5) and milling unit (7) over a prescribed inclined path. In this manner, fiber bales (4) may be continuously fed at the top of the inclined path for fiber removal.

Abstract: This invention provides a composite wire rope comprising a plurality of outer strands laid helically about a helically stranded core. The core is comprised of high strength synthetics, such as polyamide or polyolefin materials to form a unitized lay central member. The method for forming the rope comprises the steps of twisting high strength synthetic monofilament yarns into core elements to provide a high degree of stability and overall tensile strength. Each such element is helically laid in a single operation to form the finished core. Lubricant may be applied and subsequently a protective jacket of steel, natural or synthetic material may be provided to encapsulate the core and lubricant. The rope structure is completed by helically laying a plurality of outer strands about the core.

Abstract: A ring for spinning machinery is made of alloy steel containing Cr 0.9-26% as basic material. The basic material is cut in the desired ring shape, is subjected to gas carburizing, quenching, subzero treatment and tempering and is finally subjected to a grinding. This ring has a surface layer in which carbide occupies 30-90% in the rate of area, with a surface roughness which has an average roughness of less than Ra 0.25 .mu.m at a center line.

Abstract: A drawing machine having a drawing zone (8) for drawing silvers (2), and a plurality of flyers (14) for winding the silvers on to bobbins (16), is made compact by arranging the flyers substantially longitudinally of the paths of the silvers through the drawing zone, e.g. in echelon formation with respect to the silver paths.

Abstract: A friction spinning unit of a multi-position friction spinning machine includes a pressure tapping in the suction line to a suction port in the fibre feed duct. A suction transducer responsive to the suction in the tapping controls the fibre feed clutch of that particular friction spinning unit for disengaging the friction spinning unit when suction value sensed by the transducer deviates from a predetermined range of acceptable suction values, to shut-down the friction spinning unit well before the yarn quality has been impaired to a sufficient extent to cause a yarn break.

Abstract: A fibre opening device for use in apparatus for spinning fibres into yarns comprising a housing in which an opening roller is rotatably mounted, the housing having a trash separation zone and a fibre stripping zone and the roller having a cylindrical working surface from which combing elements project and being substantially hollow with holes extending through the wall defining the cylindrical working surface to permit a flow of air therethrough, wherein cleaning means are provided for the interior of the roller, the cleaning means consisting of a vacuum suction device and a compressed air jet device which remove trash, dust and short fibres from the interior of the roller. It is preferred that the air jet device is in front of the suction device relative to the rotation of the roller and on the side of the roller remote from where combing of fibres occurs.

Abstract: An insert with a wedge shaped cushion portion of greater resiliency than the remainder of the insert which is designed and arranged to be inserted through the foot opening of a shoe into an upwardly opening cavity in the posterior portion of the shoe. The cushion wedge portion is positioned to control the range of rotation of the heel of a wearer upon heel-strike and is provided in different resiliencies so that the insert may be used to properly address the impact resulting from heel-strike in different weights of wearers.

Abstract: A cylindrical reel-hub for a tape, in particular a magnetic-tape or ink ribbon, is divided in into two semicylindrical reel-hub portions along a dividing zone. The reel-hub portions are integrally interconnected by an elastically deformable bridge which bounds the dividing zone at one end and which constitutes a hinge between the two reel-hub portions. The reel-hub portions are held together by a connecting means at the open end of the dividing zone to clamp a tape introduced into the clamping zone between them. The two ends of the dividing zone are substantially diametrically opposite one another and the dividing zone extends in a substantially radial direction at its open end.

Abstract: In a yarn splicing operation on a ring spinning machine wherein a broken end of yarn is drawn into a suction tube in position for splicing, the suction is reduced after the yarn is in position to avoid damage or destruction of the yarn as it is being held by suction. The reduction in suction is accomplished by the opening of a bypass, the restriction of the tube or a reduction in the speed in the motor of the suction pump.

Abstract: A screw including a head and a shaft having a helically threaded portion and a barbed portion is provided. In operating the barbed portion driven into a hole by pressure on the head in the axial direction. When the barbed portion is completely driven into the hole, the threaded portion comes into contact with the wall of the hole for driving the screw slightly further into the hole in this manner tight engagement between the two members fastened by the screw can be achieved. The barbed portion is so formed as to prevent removal of the screw.

Abstract: A process for making alternate S and Z twist plied yarn from individual singles yarns includes the steps of tensioning the singles yarns as they move in a path through the process, twisting the individual yarns in either an S or Z direction, stopping the forward movement of the yarn, then bonding the ply-twisted yarns at a node while applying twist, stopping the twisting operation, then repeating the procedure while twisting in the opposite direction.

Abstract: A ply-twisted crimped continuous filament yarn having at least 40 twist reversals per meter and particularly suited for freize style carpets and the process for making the yarn is disclosed.

Abstract: A process is disclosed for manufacturing corrosion resistant cable. In the process, a corrosion resistant, organic based, alkyl silicate-zinc coating solution is applied to wire as the wire is twisted into cable. The solution dries on the wire in air, leaving an inorganic silicate-zinc coating on the wire. The cable is then coated with a plastic. The process is particularly useful for manufacturing brake cables.

Abstract: Hollow fiber separation membranes are bundled in groups of 5-350 membranes and helically wound with a 20-120 denier yarn. The bundle is more readily handled when making permeators using dry membranes and there is significantly reduced fiber breakage and damage.

Abstract: A traveller for use in a textile spinning and twisting machine, includes a substantially C-shaped member adapted to engage and travel about a ring of the machine, the member having an outer surface and an inner surface constituting a yarn guide path on which yarn travels, the yarn guide path on the inner surface being free of any mold parting line, the traveller being formed in a mold and the yarn guide path on the inner surface being formed by a groove in an ejector pin of the mold.

Abstract: In an arrangement for open-end rotor spinning having a spinning rotor which, by means of a rotor shaft, is disposed in wedge-shaped gaps formed by pairs of supporting disks and is driven by means of a tangential belt, it is provided that a cleaning element is assigned to the peripheral area of the pressure roller.

Abstract: Apparatus for separating waste particles from a textile fiber flow is disclosed which includes a housing (2, 22, 34) with a deviation zone (4) and separation zone (6). Following the deviation zone is a fiber flow discharge channel (5). Following a separation means (10, 11, 23) is a waste chamber (7) for removing large and small particles of waste. The waste particle separation device includes a plurality of rod elements (10, 11) which are curved to guide lighter particles upwardly to prevent adherence to the separating element. Larger particles pass through openings between the rod-like elements to the collection chamber. Communication between the fiber flow and the waste flow may be had by using a valve member (27, 35) to intermittently connect a collection channel (25) with a suction removal source (8) via waste chamber (7).

Abstract: A process is provided for producing an open-end spinning rotor assembly. A boron treatment material is applied only to the fiber collecting groove area of the rotor of the spinning rotor assembly. Subsequently, a spinning enhancement material is applied over the boron treated fiber collecting groove and over a sliding wall area of the rotor. An assembly treated with boron treatment material and spinning enhancement material is also provided.

Abstract: An improved partially-oriented nylon 66 (PON) spinning process and product are provided by increasing the molecular weight well above the levels customary for apparel end uses.