Mechanism for supporting and retaining the beads when building at least a portion of a pneumatic tyre on a building drum, said mechanism comprising radially expandable and retractable means for laterally supporting at least a part of each bead, wherein a large number of rocker arms is arranged in a ring shape about the centre line of the building drum, and means serve to shift and swivel all of th...

Reclaiming of polyester waste material for re-use in the production of high-quality PET plastic material comprises shredding, cleaning, sorting and postcondensing said waste materials. The shredded scrap material comprises polyester waste materials of various molecular weights and degrees of purifying. The shredded material is molten and filtered The filtered melt is either post-condensed in the m...

High molecular weight polyethyleneterephthalate resin is currently being used in vast quantities in manufacturing tire cord and in manufacturing trays for frozen foods which can be heated in either microwave or convection ovens. In some applications polyester resins having ultra-high molecular weights are required. For example, some techniques for producing polyester yarn by solution spinning dema...

A method of mixing micro and macro fibers into a polymer matrix and products made thereby are provided. In the illustrated method, a micro reinforcing polymer (16) is mixed with an elastomeric base polymer (14) and preformed macro fibers (12) are added thereto. In one embodiment, the micro reinforcing polymer forms micro fibers in a resulting elastomeric matrix which is interspersed with macro fib...

A security system in which sensors are included in one or more groups which are stored in the system. Groups of sensors are selectably actuable by a user entering mode information into the system so that only the selected group(s) will provide indication of an alarm condition when a sensor indicates an alarm event has occurred.

An apparatus for inspecting a reflective surface of an article for defects includes a point light source for generally uniformly illuminating the entire surface of the article under inspection, and a diffusing screen for intercepting the light rays reflected from the surface under inspection of the article. The intercepted light rays produce a high resolution image on the screen consisting of brig...

A process is described for making a composite article without shrinkage, particularly of ceramic and metal wherein the article includes complex internal surfaces or cavities. The process requires forming an insert body that includes an external surface that corresponds to an internal cavity of the article. The insert body consists of a material having a melting temperature less than that of the ar...

A laminate which is substantially free of distortion when used in a safety glazing comprising a transparent, thermoplastic substrate layer, optionally surface treated or coated to improve adhesion, bearing one or more functional performance layers, such as an infra-red radiation reflecting stack, and at least one layer of plasticized polyvinyl butyral bonded on one side to a functional performance...

An electronically controlled transmission in which a shift actuator for driving a sleeve of a roller synchro mechanism and a throttle actuator for an engine are electronically controlled. The shift actuator is comprised of a drum type actuator of a simple structure comprising a shift drum and a shift fork. The use of the roller synchro mechanism ensures that only a small driving force for the shif...

A disposable aspirator assembly for use with an electrocautery handpiece is disclosed wherein the assembly removably attaches to the body of an electrocautery handpiece. The assembly is generally "T" shaped with the "base" of the T curved to extend in the general direction of the long axis of the handpiece to removably attach to vacuum tubing. In a preferred embodiment the hollow, tubular cross-me...

The invention relates to fiber composite materials and a process for their preparation. The process comprises impregnating fibers with a molten polysilazane in a first step, converting the polysilazane in the fibers into the non-fusible state in a second step, and heating the impregnated fibers to 800 DEG to 2000 DEG C. in a nitrogen, noble gas or ammonia atmosphere in a third step.

Disclosed is a method for the production of diamond films, which comprises introducing a diamond-forming gas into a reaction chamber in which a substrate is located, activating the gas in the reaction chamber and depositing diamond on the substrate by decomposition of the gas, wherein the diamond-forming gas is a gas or gas mixture containing hydrogen, oxygen and carbon atoms at an atomic ratio sa...

A method of protecting plants and seeds thereof which are susceptible to attack by microorganisms. To the plant or seed is applied a compound having the formula (I) wherein R and R' are independently selected from hydrogen and alkyl of 1 to 4 carbon atoms; and R'' is a moiety selected from the group consisting of (a) hydrogen, (b) a halogen atom selected from the group consisting of F...

A foamable composition for producing an ultra low density polyolefin foam having a density of about 0.6 to about 1.5 pounds per cubic foot comprising a heat-plastified mixture comprising (1) an olefin polymer resin selected from the group consisting of ethylene homopolymers and copolymers of ethylene and a copolymerizable monomer; (2) an elastomer in an amount of about 3 to about 30 wt. parts per ...

In the manufacture of PVC cellular plastic, a liquid plastic mixture is admixed with fibres in an amount of at most 0.050 percent by weight fibres, preferably carbon fibres having a length of about 1 cm, which fibres are distributed in the expanded cellular plastic isotropically with respect to both position and alignment. The cellular plastic is effective to dampen electromagnetic radiation withi...

Polyvinyl chloride surfaces receive a well-adhering, water and ethanol resistant coating with good plasticizer sealing effect by varnishing with an aqueous dispersion of (meth)acrylate polymers that are synthesized from 10 to 90% by weight acrylic and/or methacrylic acid alkyl or cycloalkyl esters with 1 to 10 carbon atoms in the ester group, 90 to 10% by weight acrylic and/or methacrylic acid est...

Fine particles of gelatin and amino acid used in the present invention are particularly suitable for use in combination with resins. Gelatin particles used in the present invention have the number-average molecular weight of 8,500 or less, and amino acid partiles with the number-average molecular weight of 200 or less, so that efficient pulverization becomes possible and that gelatin and amino aci...

A low loss composite spider arrangement for use in inductive electrical equipment and an air core reactor incorporating the same in which a non-conductive or a conductive material having very low relative permeability and relatively high resistivity is used to fulfill the mechanical and structural requirements of the spider, and a relatively small amount of electrical conducting material, bonded t...

In an improved method of curing a topcoat coating composition, at least a portion of the curing catalyst for the topcoat is contained in the basecoat composition. After applying the topcoat, the curing catalyst in the basecoat migrates to the topcoat, where it contributes to the curing the topcoat. Improved intercoat adhesion is obtained. In addition, the disclosed method enables the use of one pa...