Abstract: A metallic reinforcing cord structure suitable for reinforcing elastomeric articles characterized by a high compression modulus which increases resistence to buckling and fatigue failure and by improved adherence between the core and the elastomeric article in which it is embedded is disclosed. The cord comprises a core consisting of two equal diameter brass plated steel wires and an outer layer of six equal diameter brass plated steel wires disposed about the core wires, the diameter of the outer layer wires being between about 1.23 and about 1.43 times the diameter of the core wires. The two core wires are twisted about one another and the outer wires are twisted about the core. Both the core and the outer wires are laid in the same direction.This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and the extent of the invention being discernible only by reference to and from the entire disclosure.

Abstract: The invention relates to a process for the production of a false-twist textured, highly elastic, synthetic crimp yarn with low residual shrinkage and latently bound crimp by stretching, false-twisting, heat-fixing and thermal after-treatment of the synthetic yarn at yarn draw-off rates of from 400 to 900 m/min, in which the thread tension during thermal after-treatment is 6-25% of the thread tension during heat-fixing, the time of thermal after-treatment is 2-5% of the time spent in heat-fixing and the temperature of the yarn during the thermal after-treatment is 30.degree.-100.degree. C.

Abstract: Crimped polyamide staple filament mixtures and yarn therefrom having a high bulk, high luster free from objectionable sparkle and glitter, and improved resistance to soiling are produced. The novel yarn is a blend of trilobal polyamide filaments having different cross-sections, i.e., modification ratios, within specified ranges and specified proportions for each cross-sectional type of filament. This yarn has particular utility as carpet yarn. The method for producing the novel yarn comprises blending the above-described mixed cross-section filaments.

Abstract: Method and apparatus for starting, interrupting or stopping spinning of a fasciated spun yarn. Staple fibers are false twisted into a yarn, a fluid eddy is applied to the bundle, and separate suction is applied, cutting off temporarily the suction air current separately provided. Yarn formation is continued while re-applying the suction air current separately applied.

Abstract: A bobbin doffing mechanism for spinning and twisting frames is disclosed, the improvement consisting in that a plurality of fluid-controlled doffing units is mounted on a generally elliptical race so that the spindle line is arranged along a rectilinear path of the race, the opposite rectilinear path being opposite to the spindle line. The plurality of doffing units travel in a closed loop on the generally elliptical path. The doffing units comprise gripping members for doffing and discharging the bobbins, these units being fluid-controlled, preferably pneumatically controlled, the sequence of operations being commanded by a specially provided cam mechanism.

Abstract: A textile spinning ring for use with a traveler having a yarn-engaging loop extending above a C-shaped ring-engaging traveler body, has means for preventing the yarn from becoming hooked under the traveler body rather than under the loop when the traveler is pieced-up in preparation for spinning. An annular flange configured to conform with the shape of the traveler extends inwardly from the body of the annular ring, the flange presenting a profile lower than the profile of the ring body. A low-profile bridge connects the flange with the ring body, and forms a recess which contains the ends of the traveler body. The flange, bridge and ring body are further configured and dimensioned so that the upper surface of the traveler body is substantially flush with the upper surface of the ring body when the traveler is resting on the flange.

Abstract: A line having a central load-supporting member is provided with a stabilizing system to counteract instabilities caused by currents in a fluid surrounding the line. The stabilizing system comprises a single start helical formation projecting radially from the central member.BACKGROUND OF THE INVENTIONThis invention relates to lines or cables which, in use, are subjected to the forces of a fluid current. A particularly important example of lines is a deep-sea mooring line as used, for example, to retain a buoy at a predetermined depth and location in the ocean.Such lines are subject to a current-induced vibration (often referred to as "strumming" which reduces the lifetime of the line and which can cause other problems in various line applications (e.g., interference with the effective operation of a hydrophone array secured to the line). Although various arrangements have been proposed for reducing strumming, each of these has suffered from one or more of various drawbacks.

Abstract: A pneumatic auxiliary apparatus for introducing a running yarn into a false-twist texturing machine is described wherein two suction devices are arranged for attachment to perforated suction tubes extending along the machine and connected to a suction source. One such device has a suction nozzle connected by a pliable tube to a slide valve. This nozzle can be used to draw yarn through a tube leading from a false-twist imparter (associated with a heating plate) to a point where the yarn can be inserted into a delivery device that leads the yarn to the entry of a yarn guiding tube extending through a second heating device. The nozzle can then be mounted in a support at the said entry to enable the suction draw the yarn through the pliable tube to the slide valve. The valve is then closed and the valve is arranged so that, when being closed, it co-operates with a knife to sever the yarn.

Abstract: A turns-counting dial for multi-turn potentiometers and the like, and having an intermittent-motion mechanism connecting a shaft-mounted control knob to a turns-counting ring. An interrupted-tooth gear coupled to the turns-counting ring is locked against rotation except during turns-counting movement by a flange on a coupling ring positioned radially inwardly of the gear within the dial. This arrangement provides secure locking of the turns-counting dial, provides flexibility in the number of turns to be counted, enables use of relatively low-tolerance parts, and strengthens the intermittent-motion mechanism against breakage or distortion if torque is applied to the turns-counting ring.

Abstract: An open end spinning machine employs a tubular member serving as an air duct and upon which the spinning and winding components are mounted.

Abstract: Spinning machine apparatus including a plurality of open-end spinning units arranged side-by-side and having running rails adjacent thereto for accommodating a mobile servicing device, which device effects servicing operations at individual spinning units. In order to provide accurate adjustment of the servicing device with respect to the individual spinning units, horizontally adjustable supporting elements are provided for adjusting the lateral position of the servicing device with respect to the individual spinning units.

Abstract: The invention relates to methods and apparatus for the detection of changes in surface tension of a liquid by introducing an inert gas under pressure into the liquid to form an inert gas-liquid mixture, decompressing the mixture to provide bubbles which increase in size and generate sounds and measuring the sound intensity of the sound generated by the decompression of the gas-liquid mixture. Inasmuch as the addition of pollutants to water changes the surface tension characteristics of the water, the present invention is applicable to the monitoring of water for the detection of pollutants.

Abstract: A method of forming a wound musical instrument string wherein a core wire is fed axially along a preselected path while being rotated at high speed and a wrap wire is caused to be wrapped about the advancing rotating core wire. The wrapped core wire may additionally be driven. The drive may comprise rollers engaging the core wire prior to the wrapping operation and may include rollers engaging the wrapped wire subsequent to the wrapping operation.

Abstract: A method of making wire rope which when finished comprises a plural number of wires assembled in a twisted state. Each of said wires is first electroplated with zinc and thence diametrically adjusted as to its length by the application of a cold working thereto. Then the wire rope is further electroplated with tin thereby obtaining corrosion-proof and solderable property besides becoming resistant against friction and the like due to its surface lubrication in comparison with conventional wire ropes.

Abstract: An apparatus and a method for yarn length measuring according to rotations of a shaft. Rotation of said shaft generates reference pulses which are converted on a manually settable device, into count pulses with a frequency ratio presettable in accordance with the ratio of the yarn length to be measured and a fixed count capability. Counters are provided for each working station of a textile machine which, independently, effecting the count for a same number of count pulses as said counting capability.

Abstract: An apparatus detects a leakage position between the upstream and downstream points of a fluid passage, where the fluid leaks. The flow rate of the fluid is detected both at the upstream and downstream points repeatedly at intervals much shorter than a difference .DELTA..tau. between time .tau..sub.1 and time .tau..sub.2 which elapse until a flow rate change appears respectively at the upstream and downstream points. Thus the pattern of the flow rate variation is detected with respect to the time .tau..sub.1 and the time .tau..sub.2, thereby obtaining the time difference .DELTA..tau.. Based on the time difference .DELTA..tau., the distance x between the upstream and downstream points is obtained, thus locating the fluid leakage position, by the following formula: ##EQU1## where l denotes the distance between the upstream and downstream points, and a the speed of sound through the fluid.

Abstract: In order to be able to start-spin on the individual spinning units of an open-end spinning machine under conditions which deviate from the operating conditions and which are, in particular, significantly more favourable for start-spinning, the end of the thread is placed on a ring of fibres located in the spinning rotor at a spinning rotor speed which is reduced relative to the operating speed. At the same time, the sliver feed is reduced in such a manner that the amount of sliver feed corresponds to the reduced speed of the spinning rotor. This reduced sliver speed is produced by a mobile start-spinning unit which is equipped with means which intervene in the drive and/or control of the drive or control means causing feed of the sliver.

Abstract: A gas riser apparatus and method for conducting gas from a source of supply to a delivery point such as a meter or the like. The gas riser apparatus is defined by a double walled conduit including an inner tubular member and an outer tubular member. Sealing structure is provided at the double walled conduit for the purpose of sealing the riser apparatus. The method of the invention is directed to method steps for conducting gas from a source of supply below ground level to a delivery point above ground level.

Abstract: An apparatus and process for forming yarn products. The apparatus has first yarn forming material supply means, collecting means for receiving the first yarn forming material, second means for supplying a second yarn forming material and for placing it in juxtaposition with the first yarn forming material, and means for transforming the composite material into a consolidated product.

Abstract: A supporting fixture for pipe to be pressure-tested. The fixture includes a cage-like structure to receive an elbow, the structure being composed of opposing cage-like cradle segments defining a pipe elbow enclosure. The ends of the segments have respective semicircular flange portions to which is bolted a disc for sealing the end of a pipe elbow received in the enclosure. In the case where the elbow has a length of pipe attached thereto, a two-segment retaining cage structure is employed for the free end portion of the pipe section, also having a disc bolted thereto for sealing the pipe, the segments of the said latter retaining cage structure being connected to the elbow cage by tie rods. In the case where two elbows are joined by an intervening length of pipe, two elbow-retaining cage structures are employed, connected by tie rods. The elbow cage segments may be hinged together.