Abstract: A sliver formed along an inner surface of an outer rotor is drawn out through a hole of an inner rotor which is concentrically provided in and rotated differentially to said outer rotor, whereby drafting of said sliver is effectuated by the relation between the speed of drawing out said sliver and differential speed between the inner and outer rotors. Furthermore, floating movement of the fibers of said sliver is effectively suppressed by use of plural or one centrifugal disk which is pressed onto said sliver while being revolved at the rim of the inner rotor and subjected to self-rotation on its axis.

Abstract: Multi-filament reinforcing carbon yarn coated with a resorcinol-formaldehyde-latex (RFL) composition for use in reinforced rubber articles such as tires. The reinforcing yarn is prepared from a multi-filament carbon yarn having a limited denier of about 500-4,000, having a twist factor of the yarn of about 0-250, and having individual filaments which have a denier of 1.4-2.0. The reinforcing yarn is impregnated with RFL, so that the amount of coated RFL is at least about 10 weight percent based on the yarn. Treatment of the carbon filament yarn with an epoxy resin, prior to being subjected to impregnation with RFL, is also disclosed.

Abstract: A filamented polymer material of standard compounding, originally extruded or vertically drawn to a uniform diameter and having typical strength and resiliency characteristics, is converted to a material having increased resiliency characteristics simulating those of catgut and lamb gut for use in tennis racquets. The method for the conversion comprises subjecting a filament or a plurality of twisted together filaments of the material to irradiation, which causes a crosslinking of its molecules.

Abstract: In order to be able to call a maintenance unit to a spinning point requiring maintenance in an open-end spinning machine comprising a plurality of spinning points, this spinning point provides a signal which can be recognized by a detector of the maintenance unit. The signal transmitter required herefor is connected with the sliver supply means, which are stopped in the event of a malfunction at the spinning point requiring maintenance. The signal transmitter therefore indicates the stopped condition of these means, which is recognized by the detector.

Abstract: Mass and force meter with a frame, a load-support and a measuring system, wherein the mass or force to be measured acts indirectly on the tension of two transversally vibrating, pre-loaded strings excited by electronic means, so that the resultant frequency changes serve for calculating the magnitude of said mass or force in a computing device, both strings, a first transmission element for the transmission of a pre-loading force and a second transmission element for the transmission of a force depending on the load to be measured being fixed to a force distributor guided in a statically determined way relatively to the frame by means of the two strings and of at least one guide with respect to the pre-loading force and to the force depending on the load to be measured. The force distributor comprises three parts forming a triangle, both strings, the guide and both transmission elements being fastened to the corners of the force distributor.

Abstract: An apparatus is operative for processing yarns, filaments or other such elongated elements. An arrangement for controlling the travel of such elongated element includes a device for determining the number of elements breakages occurring per unit time and for generating a corresponding breakage-frequency signal, a device for establishing a reference breakage frequency, and a mechanism for automatically varying the speed of yarn travel as a function of the discrepancy between the reference breakage frequency and the breakage frequency indicated by the breakage-frequency signal.

Abstract: Device for automatically starting or resuming operation by joining a thread for spinning in an open-end spinning machine, the device having a pivotable bent suction tube for seizing a thread end located on a take-up coil, the suction tube being formed at the inside of the bend thereof with a longitudinally extending slit for passage therethrough of a sucked-in thread, includes a pivot bearing for the pivotable suction tube, a negative pressure supply line connected to the suction tube at the pivot bearing, a transfer arm connected at one end thereof to the suction tube at the pivot bearing, and thread gripping means mounted for movement from the pivot bearing to the free end of said transfer arm for transfering a thread end from the pivot bearing to the free end of the transfer arm.

Abstract: In order to reduce the noise generated by the bearing means for a spinning rotor in which the spinning rotor is mounted in a wedge formed by supporting rings and driven by a tangential belt, one common pillow block is provided for all of the supporting rings of a spinning unit, whereby the pillow block is supported in an elastic manner. The bearing conditions do not change in spite of the resiliency, as the individual members do not perform any relative motions one to the other. In order to further preclude the formation of undesired axial forces as a result of the movement of the shaft of the spinning rotor relative to the tangential belt, the elastic supporting means permit movements in only one specific direction, thereby preventing alteration of the axial force between tangential belt and spinning rotor.

Abstract: A continuous process for the spinning of twistless yarn from staple fibres which comprises the steps of:A. drafting a sliver or roving containing not more than 80% by weight, based on the weight of fibre, of a liquid containing a dispersed potential binding agent as herein defined,B. consolidating the drafted sliver or roving,C. rendering the potential binding agent adhesive,D. drying the yarn, andE. winding the yarn.The potential binding agent which may be starch, a starch derivative or a synthetic polymer dispersion may be rendered adhesive by dielectric heat, radiant heat, heated vapor or by polymerization or by breaking labile cross-links. The size of the particles of the potential binding agent is preferably not greater than the average fibre diameter.

Abstract: A low denier, high tenacity poly(ethylene terephthalate) fibrillated tape yarn particularly suited for conversion into a sewing thread which exhibits excellent sewing performance is produced by intimately mixing poly(ethylene terephthalate) polymer with from about 0.1 to 20 percent polypropylene based on the weight of poly(ethylene terephthalate), extruding the polymer mixture in the form of a tape through a slit die having a modified entry port wherein the depth of the slit is greater at both ends than at the middle, at a melt draw down of from about 26:1 to about 75:1, quenching said tape, hot drawing said tape in two stages wherein said tape is initially hot drawn to a draw ratio of from about 3.3 to about 4.2 while being subjected to a temperature of from about 80.degree. to about 140.degree. C, thereafter hot drawing to a total draw ratio of about 5.0 while heated to a temperature about 160 degrees and thereafter subjecting the tape to fibrillation.

Abstract: A thermometer unit for monitoring the temperature of a fluid cooled electric transformer, the thermometer unit having a ceramic body insertable between the coils of the transformer winding immersed in cooling fluid in the transformer case. A nylon rod responsive to heat changes is confined in the interior of the body and is adapted to expand and contract according to the heat changes to vary volume flow of a gas circulated by a pump in a closed circuit connected with the body. Variations in the gas pressure are indicated on a sight gage externally of the transformer.

Abstract: A bobbin doffing and donning method in a spinning machine including a conveyor for conveying the empty and full bobbins along the machine, and a succession of bobbin holders for holding and transferring the bobbins between the spindles on the machine and the conveyor. The empty bobbins are removed from the conveyor by grasping the upper end of an empty bobbin by a holder and moving the holder upwardly. The holder is then moved to position the empty bobbin above a corresponding full bobbin on a spindle with the empty bobbin in axial alignment with the full bobbin. The empty bobbin is released from the holder and the lower end abuts against the upper end of the full bobbin. The holder is moved down along the empty bobbin until it reaches the junction between the empty and full bobbins and then grasps both the empty and full bobbins simultaneously.

Abstract: A process and a probe for measurement of temperatures of a given medium and also for measurement of the density of electromagnetic power of a medium at a given temperature is provided wherein a beam of light is transmitted into a capillary enclosure containing a liquid having a reflecting meniscus so that light is reflected from said meniscus and the reflected light is transmitted out of said enclosure whereby the intensity of reflected light can be measured as compared to that of the incident light.

Abstract: A fire extinguisher cabinet protectively encloses a fire extinguisher of the portable type and provides a transparent movable access panel through which the fire extinguisher may be readily seen. Movement of the access panel actuates an audible alarm to indicate that the cabinet has been opened. The cabinet discourages theft of the fire extinguisher as the same cannot be removed therefrom without opening the access panel and actuating the alarm unless a key controlled lock and actuating arm is moved to inactive position prior to moving the access panel.

Abstract: The present invention relates to a process for the simultaneous stretch-texturing of synthetic, at least partly thermoplastic filaments or yarns using false twisters, more especially friction false twisters wherein the ratio S.sub.2 /S.sub.1 between the tractive or tensile forces S.sub.1, acting on the filament before the false twister, and S.sub.2, acting on the filament after the false twister, is adjusted to from 1.0 to 1.4 by adapting the ratio between the rotational speed of the false twister and the rate of travel of the filament or yarn, and the denier-related twisting of the yarn is from 5 to 50% higher than the level of twisting which is normally applied in conventional false-twist texturing processes using a spindle and which can be calculated on the basis of the Heberlein formula. Moreover, the invention relates to a yarn produced by the afore-described process.

Abstract: Seal integrity tests are conducted on electrical energy storage devices, such as batteries, by the application, to the device under test, of oxygen at elevated pressures.

Abstract: A false twisting spindle driven by jet fluid. The false twisting spindle comprises a housing, a rotary member including a tubular body having a twist pin and a turbine blade and a fluid bearing supporting the rotary member in the housing of the spindle. The rotary member rotates higher than 1,000,000 r.p.m.

Abstract: A threading tool for a quiet-running false-twist spindle of the type having a twist pin across the bore and no conventional threading slots or holes. The tool consists of a length of fine-gauge wire with an end for grasping and a second end having two hook-shaped bends in planes preferably substantially perpendicular to each other. Yarn is threaded quickly around the pin with six simple vertical and rotational motions of the tool. Mirror-image versions of the tool provide for S- or Z-twist as desired. The tool makes it practical to eliminate the whistling noise produced by high-speed spindles having threading slots or holes.

Abstract: Method of replacing a sliver container in a spinning machine formed of a plurality of individual spinning stations, sliver containers being disposed in tandem in two rows by means of a transporting device carrying a limited supply of the containers and being constrained to travel on a given travel path along the spinning machine, which includes disposing at the spinning machine a respective pair of sliver containers in tandem on a carriage or slide movable transversely to the given travel path of the transporting device, loading the transporting device with filled sliver containers at one end of the spinning machine and unloading the transporting device of exchanged sliver containers at the same one end of the spinning machine or at the other end thereof, shuttling the transporting device back and forth, ready for operation past the spinning stations of the spinning machine after the transporting device has been loaded with filled sliver containers, stopping the transporting device in front of a sliver contai

Abstract: A non-twisted, heather yarn is formed of a plurality of major yarn bundles at least one of which is of a substantially different color from the remaining bundles. Each major yarn bundle is formed of a multiplicity of continuous filaments and has from about 10 to about 90 percent of its filaments cohering to form secondary bundles with the remaining filaments of each major bundle varying in number along the length of the yarn, being interlaced with other major bundles of the yarn, and being randomly located about the yarn axis. Each of the secondary bundles in each unit length of the yarn of about 6 inches has a portion thereof formed of greater than about 30 percent of the filaments of its major bundle and each of the secondary bundles in each unit length of yarn of about 8 inches is non-uniformly, differently oriented relative to the yarn axis.