Abstract: This process for making antistatic filaments utilizes a specific mixture of compounds in order to suffuse electrically conductive particles into a filamentary polymeric substrate by forwarding the substrate through a grooved roll-type mix applicator. The mixture comprises a dispersion of the electrically conductive particles in liquid solvent which is a mixture of formic acid and a member selected from the group consisting of an amide, a carboxylic acid other than formic acid, an alcohol, an ester, a ketone, an ether, and a hydrocarbon. The process provides advantages over the prior art in permitting the use of high processing speeds, enabling easy stringup, and allowing the use of knotty and/or slubby filamentary substrates.

Abstract: Use of a textured polyester filament yarn in a substrate for the manufacture of abrasives is disclosed. The substrate permits the manufacture of abrasives having a uniform and clean surface and a long running time. Coated abrasives incorporating the invention will not rapidly lose their binding agent grain layer during grinding and possess a high level of adhesion between substrate and adhesive. The particular yarn disclosed exhibits good absorbency for a binding agent for all, including fine, grains of abrasives.

Abstract: The present invention pertains to a process and product thereof, and an apparatus, for converting a twisted, continuous filament, multifilament yarn into a staple-like yarn. The process is carried out by needling the yarn with a barbed needle in order to break yarn filaments. The broken yarn filaments protrude from the yarn after the needling process. The protruding filament ends give the resulting yarn the appearance of a spun yarn.

Abstract: An improved spindle top having between 3 and 8 fingers together in association with yarn-catching, yarn-directing grooves provides advantages in the manufacture of spun yarns. The improved top reduces ends down by reducing tension upstream of the spindle top, and the improved top is also believed to reduce the amplitude of tension surges which occur as the yarn rolls from one catch point on the spindle top to another.

Abstract: A new and useful particulate magnesium phosphate product (MGP) and method of use therefor are disclosed for removing ammonia from aqueous solutions, e.g., recirculating dialysate solutions and intragastrointestinal fluids as may result from the hydrolysis of urea. This particulate magnesium phosphate product (MGP) acts as a remarkably effective scavenger wherein under equilibrium conditions only about six (6) grams of the novel product are required to bind the ammonia (more exactly, ammonium ions) liberated from one (1) gram of the urea, a result far superior to traditional zirconium phosphate (ZP) prior art materials which under ideal conditions require about 17-20 grams of ZP per gram of urea. The novel particulate magnesium phosphate product can be exploited in one embodiment as a replacement for the older ZP materials used to remove ammonia produced by enzymatic hydrolysis of urea in recirculating dialysis systems utilizing disposable cartridges.

Abstract: Staple fibers made from crimped, in particular compression crimped, multicomponent filaments of the matrix/segment type, the cross section of which shows, in addition to the matrix, at least 6 peripheral wedge-shaped or lenticular segments, not completely covered by the matrix, are processed into a web, which is then mechanically bonded, preferably by needling. Subsequently, the fabric is subjected to a shrinkage process, by which its density is increased by more than 30%, themulticomponent fibers being completely or partly split up into their components. The difference in shrinkage between the components should be at least 10%. The liquids used for the shrinkage treatment are in particular organic liquids, such as methylene chloride, as well as other liquids producing a difference in shrinkage of at least 20%.

Abstract: Multilayer tubular container as a means of transport and storage for chemicals, beverages, food, etc. It is provided with a tubular casing of a particular inner cross-section, the casing being composed of a first layer of a both axially and radially oriented polyethylene terephthalate and having a thickness of 50-1000 .mu.m, and of a second layer which has been shrunk onto said first layer. The polyethylene terephthalate of the first layer is heat-set into the shape of said cross-section to a degree of crystallization of at least 25%. A film-like intermediate layer is compressed between the first and the second layers, e.g., to improve the gas barrier properties. The second layer is composed of a both axially and radially oriented polyethylene terephthalate having a thickness of 75-1000 .mu.m, and is heat-set to a degree of crystallization of at least 25% on the form of the intermediate layer. This container is dimensionally stable at high temperatures, particularly sterilization temperatures.

Abstract: A pipe and sleeve telescoped joint with the pipe and sleeve in sealing engagement and keys embedded in both pipe and sleeve at their interface. The size and number of the keys are calculated from the size and strength of the pipe. The sleeve is sized and its strength selected from the strength of the pipe, and the sleeve ends are shaped to hold the joint circular when it is made. The apparatus includes means for holding the midportion of the sleeve circular when creating the joint, and for cooperating with the sleeve ends to keep them circular. The sealing engagement is created by firing a propellant into a substantially incompressible medium, like water, held by the apparatus in a cavity about the sleeve, and a piston separates the explosive propellant from the pressure medium.

Abstract: A method of temporarily densifying a bulky non-woven matting or fabric for handling and storage is disclosed, wherein the non-woven is heated, preferably to a temperature above 100.degree. C. but below the softening temperature while in a compacted state, then immediately cooled in the compacted state. Means for reducing stiffness of the compacted matting are also disclosed.

Abstract: There is provided a peristaltic pump which has a base member and a rotor attached to the base member. The rotor is adapted to receive a resilient collapsible tube. The pump further includes a stator having a fixed member disposed in a permanent position relative to the rotor. A door stator is connected to the fixed stator, and the entire stator will confront the periphery of the rotor over at least uninterrupted 180.degree. concave surface. A latch is provided on the door stator, so that it may pivot outward for ease of removal of the tubing.

Abstract: A bulking device for making loop yarn, comprising a base with a blowing chamber, a pin insert with a yarn feeding channel and a jet insert with a yarn delivery channel, followed by a diffusor having resonance chamber just behind the inlet cross section from the yarn delivery channel.

Abstract: A combination camp stool and tree stand has a chain and wedge bar combination that creates stable mounting on living trees without damaging the tree. The platform of the stand affords ample room and comfort for the occupant.

Abstract: Production of drawn dilaments by cooling freshly spun filaments at a temperature below the setting point and taking them off at 3500 m/min while passing them over heated surfaces, such heated surfaces being 20 to 300 mm long heated to from 450.degree. to 650.degree. C. and arranged at a distance of from 1500 to 6500 mm from the spinneret.

Abstract: An effect yarn and process for manufacture thereof is disclosed when the effect comprises a slub that is formed after the yarn leaves the yarn package during later knitting or weaving operations. The effect yarn is particularly useful since it processes through such operations similar to conventional air-plied yarns.

Abstract: The invention relates to a process for the treatment on a circular knitting machine of multifilament yarns with a stream of gaseous fluid under superatmospheric pressure, more particularly air, in which treatment the yarns to be knitted are rendered more or less bulky by subjecting them to a blowing treatment in a zone between the point from which the starting yarns are supplied and the point at which they reach the knitting needles.

Abstract: The invention relates to a method for the production of synthetic filament yarn having crepe characteristics by simultaneous drawing and falsetwisting of the filament yarn while imparting a twist by means of a falsetwister, as well as--under certain conditions--drawing of the filament yarns to a ratio of at least 1:1.08.

Abstract: A bulking device for making loop yarn, comprising a base with a blowing chamber, a pin insert with a yarn feeding channel and a jet insert with a yarn delivery channel, followed by a diffusor, the axis of which runs at an angle to the jet axis and which is followed by a cylindrical channel section.

Abstract: An aerodynamically supported roller bearing is disclosed, having means for connecting a compressed gas supply and using the compressed gas to bring the roller up to a desired speed. The design of the roller then permits the compressed gas supply to be reduced or turned off while the roller continues to be aerodynamically supported. Advantageously, some minimal compressed gas is continued through the roller to purge the roller of potential dust particles interfering with the operation of the roller.

Abstract: A portable spinneret cleaner consisting of a base plate, a cylindrical case attached thereto and having a flat stop surface at its end, and at least two guide bars pivoted therein and being fitted at one end with holders for at least one knife blade each, the cutting edge of which is capable of being moved into the stop surface plane against a spring action.