Abstract: The invention relates to a process for the manufacture of monofilaments for melt-spun synthetic polymers at high speeds. Lower spinning heights than conventional spinning applications are obtained by using the phenomena of natural yarn deflection.

Abstract: A spinneret cleaning device for removing deposits quickly, reliably and uniformly has an adjustable force flat plane cleaning blade.

Abstract: A composite yarn of a falsetwist textured continuous multifilament end and spun yarn end fluid entangled with an interyarn tangle factor of at least 20 is disclosed. The spun yarn end is wrapped around the continuous filament end in alternate and varying degrees while individual filaments of the continuous filament yarn are wrapped around the spun yarn at "locking points" along the length of the spun yarn and interlaced together. A method for manufacture of the composite yarn is also disclosed.

Abstract: The invention relates to a composite, synthetic multi-filament carpet yarn of polyamide, which yarn is composed of a number of intertwined basic yarns of varying dye affinity and/or crimped yarns of different colors.

Abstract: The invention relates to a device for the winding of yarn on a tube to a yarn package which device is equipped with a traverse unit. The device imparts to the yarn a traverse motion in axial direction with respect to the tube. The circumference of the yarn package is clear of any element. A pneumatic detector located near the circumference of the yarn package pneumatically detects the distance between the circumference of the yarn package and the traverse unit.

Abstract: A matting is disclosed for reinforcing underwater terrains. The matting is made of sections of looped intersecting synthetic polymer filaments bonded to one another at their points of intersection, at least one section being temporarily buoyant in water. The matting disclosed may be towed into position and then submerged.

Abstract: The invention relates to a process for the manufacture of a core/skin or core/sheath yarn, whose skin- or sheath-forming filament is wrapped around the core yarn in alternating "S" and "Z" directions. It relates furthermore to a device to carry out the process using otherwise known single spindle friction falsetwisting units.

Abstract: A cap-sensitive slurry explosive capable of propagating a high order detonation in thin layers and which has a high degree of safety for a cap-sensitive explosive. The slurry consists of a super-fine grained explosive, suspended in an energetic, but non-self-explosive liquid matrix and contains no liquid explosive ingredient. The slurry resists dispersion in a variety of liquids including water and crude oil. In the preferred embodiments the slurries include penetaerythritol tetranitrate (PETN) in super fine particles, having an average particle size of about 6.5 microns.

Abstract: A new extruder screw design incorporating an optimal flight helix angle and flight height in the feed section and metering section and a constantly varying helix angle with a constantly decreasing flight height in the transition section is disclosed; the screw being efficiently fed by use of a grooved section of extruder barrel in the area of the feed section.

Abstract: A nubby yarn comprising at least one textured core yarn and one separately textured effect yarn is disclosed wherein the effect yarn is periodically wrapped helically around the core yarn and then helically wound over the first helix in the same direction of wind. A process for the manufacture of the nubby yarn is also disclosed.

Abstract: The invention relates to a process for the high speed threading of yarn into a false-twisting spindle, whereby the twisting pin is set in a "rotor" body located between an upstream and a downstream pipe and passes through a threading aperture in perpendicular alignment with said pin, as well as a device to carry out the process.

Abstract: Yarn testing device comprising a spool, a variably driven godet with one yarn coil, followed by a suction nozzle, and a yarn tensioner to switch on and off, located between the spool and the godet, the suction nozzle and the pneumatically actuated yarn tensioner being connected with a changeover switch.

Abstract: Method and apparatus are disclosed for cutting tow by supplying the tow with a pair of rolls to form a package next to cutting edges inside a rotating ring of blades. A pressure roll forces the tow against the cutting edges which form a surface of rotation preferably at an angle of 5.degree. to 85.degree. to the axis of rotation of the circle of blades.

Abstract: A new and useful therapeutic bed frame is disclosed wherein at least one-half of a standard size bed or larger may be elevated for use and returned to level position when not in use.

Abstract: A salt seasoning mixture comprised of sodium chloride, potassium chloride, and encapsulated citric acid. The encapsulation of the citric acid dissolves in a user's mouth within 1 to 10 seconds to mask the bitter aftertaste of potassium chloride in the mixture.

Abstract: An apparatus is provided for counting crimp in fibers or filaments by moving a cell containing a specimen through a laser beam and detecting changes in radiation scattered by the crimped fiber. The radiation is observed by means of suitable electronic circuitry and a photodetector.

Abstract: This invention is directed to a method and apparatus for transferring heat between two bodies separated by a narrow space and movable relative to each other, the temperature of one body dependent upon the temperature of the other body.

Abstract: Disclosed is an apparatus for heating high speed moving yarns by using a roller with a fixed core and a rotatable jacket separated from the core by a narrow gap. In operation, the gap is filled with a gas under superatmospheric pressure. A method for using the apparatus is also disclosed.

Abstract: Disclosed are novel yarns comprised of at least two, and preferably three, strands of filaments, being twisted about the other strands in random "s" and "z" directions in variant degress with filaments of each strand being interlaced together to produce a cohesive commingled yarn. The individual strands although interlaced with the other strands maintain substantial integrity in the commingled yarn and preferably have different dye affinities. Methods of manufacturing the novel yarns are also disclosed.

Abstract: Reinforcing material for elastic articles and more particularly for automobile tires. The material is made up of multifilament synthetic linear high polymer yarns, each yarn having a plurality of filaments and each filament composed of at least two different polymers. One polymer functions as the matrix and the other polymer consists of a multiplicity of continuous cores having substantially the same length as, and being disposed uniformly throughout, the matrix. The cores are characterized by their uniformity in cross-sectional dimensions and by their substantially continuous nature. A novel system is provided for making such filaments.