Abstract: An open-end spinning device having a spinning rotor housed within a rotor housing which includes a yarn conduit plate for closing the front side of the rotor housing and a conduit plate adapter, defining a mouth area of a yarn conduit guide and including a yarn draw-off jet, which is removeably arranged in a receptacle of the yarn conduit plate and is easily and quickly replaced in connection with the replacement of a rotor, while providing a reliable and tight fastening of the conduit plate adapter in the open-end spinning device. The conduit plate adapter comprises an extension including fixing elements which can be secured by a fixing arrangement which is movably arranged for selectively abutting the fixing elements for fixing the conduit plate adapter within the receptacle of the yarn conduit plate.

Abstract: A yarn withdrawal nozzle (20) for an open-end rotor spinning device (1) has a yarn inlet zone (29) tapering in a funnel-like manner into a yarn withdrawal conduit (21), with the yarn inlet zone being formed with both a spiral structure (30) as well as additional notches (34) in the inlet area of the yarn withdrawal conduit (21). As viewed in the yarn withdrawal direction (A), the notches (34) are either arranged following the spiral structure (30) or at least partially in the area of the spiral structure (30).

Abstract: A twisting spindle has a spindle that is driven in rotation, a protective pot supported on the spindle and secured against rotation, and a rotary disk fixedly connected to the spindle. The rotary disk has a radially extending yarn channel connected to the hollow spindle axle and supports a cylindrical mantle surrounding the protective pot. The cylindrical mantle has above the outlet opening of the yarn channel a yarn guide element. An intermediate housing that is freely rotatable and surrounds the rotary disk and the cylinder mantle is provided. A stationary outer housing receiving the intermediate housing is also provided.

Abstract: A spinning apparatus is disclosed according to the invention having a drafting zone comprising at least four roll pairs for drawing a sliver comprising one or more types of staple fibers. The rolls pairs include a back roll pair, intermediate roll pairs and a front roll pair and the distance between the nip of the back roll pair and the nip of the adjacent intermediate roll pair, and the distances between the nips of adjacent intermediate roll pairs is no more than the effective fiber length of the longest staple fiber type in the sliver. The drafted sliver may be spun into yarns at high speeds, such as the speeds used in air jet spinning apparatus to provide yarns having increased strength and reduced defects. The present invention also includes a method of forming high quality and high uniformity yarns by advancing a sliver through a drafting apparatus and thereafter spinning the sliver into yarn.

Abstract: A spinning machine having a drafting frame, a condensing unit at the downstream side of the drafting frame and a spinning station for winding up the yarn and imparting twist to the roving in forming the yarn. The condensing unit comprises a disk-shaped suction rotor oriented in a plane tangent to the output rollers of the drafting frame. A limited compaction zone is formed by a shield within a suction rotor and designed to apply suction only to a limited portion of the perforated periphery thereof. The pressing roller bears against the suction rotor at the downstream side of the compaction zone.

Abstract: The lashing device has at least one supply reel, which contains a lashing element which is to be applied in a continuous spiral. The supply reel is mounted on a journal so that it can revolve about its longitudinal axis, and the journal, together with the supply reel, is arranged so that, with simultaneous longitudinal movement along the conductor, this journal wraps around the conductor in a rotating manner.

Abstract: A step bearing is provided for the end of the shaft of an open-end spinning rotor. The step bearing has a cartridge which is clamped fixedly by a cylindrical outer surface in a corresponding hollow cylindrical receiver surface of a supporting part. The cartridge includes a freely rotatable supporting ball for supporting the shaft; a thrust bearing screwed fixedly onto the cartridge for supporting the supporting ball; and a take-up receptacle for lubricating grease. The cartridge, including the supporting ball and the thrust bearing, can be exchanged for another cartridge with fresh lubricating grease.

Abstract: A composite yarn includes a core composed of a continuous yarn, and a coated sheath composed of a matrix including at least one chlorinated polymer material, and a fire-retarding filler incorporated into and distributed within said matrix, wherein, in combination, the fire-retarding filler comprises a ternary composition which combines an oxygenated antimony compound, a hydrated metal oxide, the metal of which is chosen from aluminum, magnesium, tin, zinc and lead, and a zinc borate and, together with said ternary composition, the total weight content of inorganic matter in the yarn is between 4% and 65%.

Abstract: An apparatus for wrapping fiber optic cable around an overhead line (A), has a carriage (1) which sits on the overhead line (A) and is movable along the overhead line (A). A supply of fiber optic cable (B) is located on one side of the carriage (1) and a counterbalance (3) for the cable supply is located on the other side of the carriage (1). A gear set (4) is arranged to the fiber optic cable (B) around the overhead line (1). A substantially constant tension is applied to the fiber optic cable (B) during all modes of operation of the apparatus.

Abstract: The fiber sliding surface and the fiber collecting groove of an open-end spinning rotor are provided with hard particles embedded therein. After a certain length of operation time of the spinning rotor, the particles in the fiber collecting groove have a larger particle size than the particles in the fiber sliding surface. Thus it is ensured that the fiber collecting groove has a better "grip effect" relative to the fibers to be spun than the smoother fiber sliding surface.

Abstract: Methods and apparatus for effecting sample-specific cycles for the environmental conditioning of material samples, such as cotton samples, prior to testing; and for the environmental conditioning of testing laboratory space, a sub-space or "oasis zone" within the testing laboratory space and/or a test zone within a testing machine. A sensor measures at least one material property of the sample, such as moisture content of a cotton sample. Based on the material property, a sample-specific conditioning cycle is determined and effected by driving through the sample a gas flow conditioned as to at least one parameter which affects properties of the sample, such as a temperature, relative humidity, and volume per unit time, and all of which are relevant in the case of a cotton sample.

Abstract: In the case of a rotor cup for an open-end spinning aggregate comprising a rough-surfaced fiber collecting groove and a smooth fiber sliding surface it is provided that hard particles are rolled into the fiber collecting groove. The fiber collecting groove is preferably provided with a soft nickel plating before the particles are rolled in, after which the nickel plating is then hardened.

Abstract: To provide a threading apparatus that can thread yarn by feeding compressed air when the yearn is fed from a large diameter portion of a spindle member to a small diameter portion of the spindle member preceding the large diameter one. A spindle member is divided and a pipe including of a filter member is installed in the middle of the spindle, so that when compressed air is injected from the rear end of the spindle member having a large diameter toward its tip having a small diameter and preceding the rear end, a suction flow that sucks external air at the rear end is generated while excessive air is discharged to the exterior through the filter member, thereby maintaining a yarn feeding air flow in the center of the spindle member. Thus, the present invention can provide a threading apparatus that can feed compressed air to thread yarn from the rear end having a large diameter toward the preceding small diameter portion.

Abstract: A stand for supporting a fishbowl thereon in which the stand includes a base, a support surface for supporting at least a portion of a bottom of the fishbowl, and at least one upwardly extending portion attached to said base which is positioned and dimensioned to extend about and around at least a side portion of a fishbowl placed on the support surface. At least one of the base and the upwardly extending portion simulate a three-dimensional pictorial representation, such as a landscape or aquatic scene, individual, object, or a combination thereof, in which a fishbowl placed on the support surface is incorporated. Preferably, the support surface is disposed in an elevated and parallel relation relative to the base. Desirably, the upwardly extending portion extends around a portion of the lower side portion, upper side portion and top of the fishbowl.

Abstract: A yarn false twist texturing apparatus which includes a serially arranged heater, cooling device, and twisting unit. In order to collect and remove the oil vapors arising within the false twist zone, the cooling device is configured as an elongate hollow body, and the yarn is conveyed for cooling in contact with the inside wall of the hollow body. A vapor extraction system is provided which communicates with the interior of the body. In another embodiment, a tubular protective body is arranged between the heater and the cooling device, and the interior chamber of the tubular protective body encloses the yarn and is connected to an extraction device. The advancing yarn may be wetted with a cooling fluid at a location between the heater and the cooling device, to facilitate the volatilization of the oil constituents in the yarn as well as cool the yarn.

Abstract: A colored yarn is made in an inexpensive manner that allows a wide variety of different colors or hues within the product line, and also allows a wide variety of different effects to be produced including yarns with minimal leather effect, or yarns with a distinct and desired heather effect. A first coarse feeder yarn, e.g. a 1/1 semi worsted yarn, is ring or open end spun with about 2.5 turns per inch. The coarse feeder yarn is dyed, dried, and then cut and opened up into individual fibers about four inches long or less (preferably two inches long or less). The individual fibers are blended with differently colored or hued fibers produced in the same way, and/or with greige or colored staple fibers, to produce a blended composite of fibers. The blended composite is then spun, for example ring spun or open end spun, into a final colored yarn. Rayon fibers may especially effectively and uniquely be utilized, although almost any fiber or mix of fibers can be used.

Abstract: A cord comprising at least a first pair and a second pair of wires (2a, 2b) of different diameter randomly disposed in transverse cross section thereof, is obtained by arranging in a nacelle (7) of a double-twisting laying machine, a twister (16) operating upstream of a preformer (15). The twister (16), rotating in a direction opposite to that of the impeller (5) and at a speed which is twice that of the impeller, neutralizes the internal torsional stresses induced in the wires (2a, 2b) by effect of the double twisting carried out upon the action of the impeller itself. Thus, a better control of the preforming operation executed on the wires (2a, 2b) disposed parallel in respectively coplanar axes is enabled.

Abstract: An apparatus for producing thick/thin effects in a filament yarn, whereby between inlet and outlet gallets or pairs of pinch rollers, in a stretching zone, the filament yarn contacts the periphery of at least one rotating disk which is heated and is formed with at least one region of reduced radius in which there is no contact between the filament yarn and the disk. The filament yarn is thereby stretched only in regions in which it is heated by contact with the disk periphery and remains thick in those regions in which it is unheated because of the presence of the recess.

Abstract: An integrated doubling and twisting method includes the step of arranging at least two supply bobbins coaxially above one another in a protective pot of a bobbin support. The at least two supply bobbins are connected to one another, and the bobbin support together with the at least two supply bobbins is rotated. The individual spun yarns from the bobbin supports are removed in the direction of the axis of rotation of the bobbin support. One of the individual spun yarns is removed in clockwise direction and another one of the individual yarns is removed in counterclockwise direction. This feature can also be applied to a method in which a balloon limiter is provided and the individual yarns are guided through a hollow spindle axle.

Abstract: A method for using a bunching type twisting machine to manufacture a steel cord made up of one core filament having a continuous wavy form and five to eight sheath filaments not having a wavy form disposed around the core filament, the cross-sectional shape of the cord forming an ellipse whose orientation is substantially constant in the length direction of the cord. After a core filament is preformed with a helical wavy form of a smaller pitch than the cord twisting pitch, this is squashed to form a flat helical core filament at a stage before it is twisted together with sheath filaments, and then sheath filaments are twisted around this flat helical core filament to make an intermediate product cord and this intermediate product cord is then squashed and thereby flattened before being taken up on a reel.