Abstract: Friction discs for use in driving of guide rollers for twist tubes in false twist devices for texturing synthetic filaments are described in which the disc comprises a support disc of non-resilient material surrounded by a friction ring of synthetic resilient material that is tapered radially outward to the circumferential surface making contact with the twist tube. This enables the friction discs to be spaced more closely together in the roller and shorter twist tubes to be used. Centrifugal force on the friction ring is also reduced. Higher rotation speed are, therefore, achieved. The ratio of the width of the inner circumferential surface of the friction ring to the width of its surface engaging the twist tube is between 1.5:1 and 3:1. The support disc may be of metal alloy or consist of an inner disc of synthetic plastics material with an outer ring of metal alloy. In each case the metal alloy should have a modulus of elasticity of at least 6500 kp/mm.sup.2 and a tensile strength of at least 25 kp/mm.sup.

Abstract: A process and apparatus for the production of a variable diameter or thick-thin yarn in which a twist blocking means is introduced between the heater and the false twister of a false twist texturizing machine in order to intermittently deflect the yarn being treated from its normal linear path, thereby temporarily accumulating or backing up the twist between the blocking means and the false twister and then preferably releasing the twist suddenly, for example by engaging and disengaging the running yarn in contact with two pins or guide members which deflect the yarn from opposite directions in the contact position and then release the yarn for normal false twist texturizing. The resulting preferred thick-thin yarn has a characteristic long thin twisted segment of low voluminosity alternating with a thick or bulky and substantially non-twisted texturized segment of high voluminosity.

Abstract: A bearing for a spinning or a twisting-ring as used in the textile industry. The bearing has a stator which is mounted on a spring loaded damper absorbing system which has different degrees of stiffness in two axes at right angles to each other. This is to hinder the development of "half-frequency" vibrations in the bearing.

Abstract: Apparatus for surveying the condition of roving is mounted on an automatic yarn knotting device movable along a spindle row in a textile machine having a drafting device for roving allocated to each spindle. When a roving breakage is indicated, the knotting device stops at the appropriate position and a first detecting device on a pivoted lever is moved to a position in which it checks the presence of roving passing through the drafting device. If there is no roving due to exhaustion of supply, no knotting is effected, but if roving is present the knotting device is prepared and a second lever moves a second detecting device to two output rollers for delivery of roving from the drafting device. If this second device detects no wrapping of roving on one of the two output rollers, the knotting process is initiated.

Abstract: In a multiple twister provided with at least a first twisting mechanism and a second twisting mechanism successively arranged, when a yarn supplied from a yarn package held in said multiple twister contacts component elements of the twister, there is a tendency of creating fuzzy fibers projecting from the main body of the yarn. Such fuzzy fibers are laid down against the main body of the supplied yarn by contacting a contacting member disposed at an upstream terminal of a first twisting yarn passage formed in the first twisting mechanism and/or stroked against the main body of the first twisted yarn by contacting a friction surface particularly formed in a yarn guide disposed at a downstream terminal of a second twisting yarn passage formed in the second twisting mechanism so that the laid down fuzzy fibers are twisted into the main body of the yarn.

Abstract: A manual thrust gauge is comprised of a frame having either a hand grip or a wrist strap, there being a weighted member movably mounted to the frame and restrained by a spring which moves relative to a fixed member, one of these members comprising a scale and the other being a pointer and the movable member being releasably detained in any one of several displaced positions so that the user may thrust his hand as in a boxing punch, a karate chop or the like and the pointer will register on the scale the relative acceleration or deceleration of the punch.

Abstract: In a textile yarn processing machine, such as spinning and twisting machines, the combination therewith of control apparatus for automating movements of various elements of the yarn processing machine for preparing the same for doffing of full packages and for starting-up of new packages of processed yarn including combinations and subcombinations of the following. Independent hydraulic fluid operated devices are connected to the builder motion mechanisms of the machine including a piston and cylinder device positively connected between the crank arm of the builder motion mechanisms and the machine frame for relative reciprocating movement with respect to each other during reciprocating movements of the crank arm and the ring rail of the machine.

Abstract: Process and product obtained by the process by which an undrawn or partially drawn continuous filament yarn is heated above glass transition temperature and is differentially drafted by co-current and countercurrent heated gaseous flows to form in the filaments at random intervals along the lengths of the individual filaments coils, loops or whorls, with more drafting occurring in those portions of the filaments having the coils, loops or whorls than the other portions, and with more drafting occurring in some loops than others, and at the same time heat setting the yarn within the heated gaseous flows.

Abstract: Process and product obtained by the process by which an undrawn or partially drawn continuous filament yarn serving as an effect yarn component and a continuous filament yarn having a greater orientation than the effect yarn component and serving as a core yarn component are heated above glass transition temperature by co-current and counter-current heated gaseous flows to form in the filaments of the effect yarn component at random intervals along the lengths of the individual filaments coils, loops or whorls, with more drafting occurring in those portions of the filaments having the coils, loops or whorls than the other portions, and with more drafting occurring in some loops than others; intermingling the effect yarn component with the core yarn component, and at the same time heat setting the yarn components within the heated gaseous flows.

Abstract: Apparatus for forming a yarn reserve and for moving yarn back and forth in open-end spinning devices. This type of device has at least one spinning turbine, a yarn delivery opening, and a pair of delivery rollers opposite the opening. A yarn guide rod has guide elements and is located downstream of the delivery opening in the direction of yarn movement. The yarn guide rod is displaceable in a direction transverse to the axis between the opening and the delivery rollers. This rod defines a deflection device for diverting the yarn from the axis. A drive is provided for driving the yarn guide rod and is in interruptable connection therewith. The drive moves the guide rod back and forth and moves the guide rod to a further position for providing a yarn reserve.

Abstract: An automatic spool changing system for textile machines with an array of high-speed winding heads, for example of the type having a spool revolver and a lossless thread transfer device. The system has a conveyor serving for the transportation both of full spools and empty spools and traversable along the machine front; and it has a spool changing carriage also traversable along the machine front, independently of the conveyor, and mounting a gripper movable between the conveyor and a spool holder in a spool changing position. The path of movement of the spool changing carriage as well as that of the conveyor lie vertically underneath each other and in generally the same vertical plane with the spool holder. The gripper has two angularly displaced heads and is arranged for axial translation and also for rotation in a vertical plane extending forwardly of the machine front. The gripper can thus execute a spool doffing and spool donning operation simultaneously.

Abstract: A ringless spinning frame comprises a spinning frame body, above which a plurality of sliver cans are disposed on a platform, and a plurality of spinning units attached to the spinning frame body. A sliver from each sliver can is guided by a sliver guide conduit, which is disposed between the corresponding sliver can and spinning unit, to the corresponding spinning unit. The sliver guide conduits extend downwardly behind the corresponding spinning units and within the spinning frame body the interior of which reaches a temperature higher than that of the exterior by about 10.degree. to 20.degree. Celsius. To prevent the sliver guide conduits within the spinning frame body from being raised in temperature, the ringless spinning frame is provided with a device disposed near the sliver guide conduits for preventing heat produced in the spinning frame body from being transmitted to the sliver guide conduits.

Abstract: A metallic cable adapted to be used to advantage for reinforcing various types of elastomeric articles such as belts and motor vehicle tires has a core formed from two or more metallic filaments wound together into a helical shape without twisting one filament about the other whereby each core filament lies in line contact with at least one other core filament, the line of contact being parallel to the direction of the filament and a helically wound wrapping filament is disposed about the core filaments. The wrapping filament is helically wound at the same lay and hand as the core filaments and is positioned on the inside of the helix formed by the core filaments.

Abstract: A bearing arrangement for the pot of a centrifugal yarn spinning unit has a housing in whose cavity a radial bearing and an axial thrust bearing for the shaft of the pot are arranged. The radial bearing is fixedly mounted on a carrier which plugs an opening of the housing. The carrier is sealed to the housing by O-rings, and the shaft journaled in the bearings is received in a passage of the carrier provided with a packing in fixed spatial relationship with the radial bearing. Wear of the packing is minimized by the permanent guidance provided to the shaft by the radial bearing although the shaft may oscillate radially with the carrier during its high-speed rotation.

Abstract: The invention relates to a yarn piecing method and apparatus for an open-end spinning machine. According to the method of the present invention, the rotor is braked when the yarn breaks for reducing its rotational speed, while the feed roll which has stopped its rotation is rotated for a short time, so that the fiber of short length unfit for yarn piecing is supplied into the rotor. The supplied fiber is discharged from the rotor, with dust and dirt collected inside the rotor, by a jet of compressed air supplied from an air compressor. The braking force applied to the rotor is then released and the end of the sliver is supplied into the rotor as the latter is accelerated to a number of revolutions suited for yarn piecing. Then, the yarn take-up operation is started again and the speed of the rotor and that of the package are increased to those corresponding with the normal spinning.

Abstract: A textile machine having suction apparatus for processing yarns continuously running at high speed to permit threading up, doffing and the like without stopping the machine, the apparatus comprising main yarn conveying ducts extending along opposite sides of the machine, each duct having a series of small diameter straight unobstructed passages of predetermined length spaced along and opening into the duct, the axis of each passage being of predetermined related length and diameter and being inclined at an acute angle with respect to the longitudinal axis of the duct. A suction fan draws air in through said passages for tensioning the yarn passing through the passages and establishing a column of yarn conveying air along the duct.

Abstract: A process for providing a dried textile yarn, glass fiber yarn in particular, is described in which a wet textile strand is passed through a zone of high fluid turbulence, a heating zone and wound rapidly on a spool. In the process as applied to glass fiber yarns, finished textile strands are provided on spools which are considerably larger than the finished bobbins normally used by textile weavers. The yarns are dried directly from the wet forming packages to a completely dried state thus eliminating the binder migration problems frequently encountered in the drying of fiber glass on forming packages.

Abstract: In successive aligned groups, flower pots are gravity filled with earth in slight excess, the top compacted and leveled and a conical hole drilled in each to receive a plant, each successive operation being simultaneously carried out for the several pots in each group.

Abstract: A method is provided for combining continuous filament synthetic yarns of different shrinkage characteristics where one yarn is drawn and a second, previously drawn yarn is combined therewith without drawing the second yarn.

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.