This invention relates to a method and an apparatus for avoiding untwisting during the formation of a binding of two fiber bundles. The rotational direction of deformation members acting on the fiber bundles is selected to be different in different groups of deformation members in order to reproduce or to increase the original twist during the binding operation.

A folding bed frame for sofa-beds in which a plurality of frame sections, including a foot section, knee section, body section and head section are pivoted in end-to-end relation so as to be foldable between an extended bed-forming position and a retracted sofa seat-forming position; wherein front and rear support and guiding link assemblies coact to control movements of the body section and head ...

The annular tread belt body is assembled of uncured resilient material having reinforcing cords and is then mounted on a precured tire casing. The read belt body is assembled with a predetermined configuration at a radially inner surface and the precured tire casing has a matching predetermined configuration on the radially outer surface for mounting of the tread belt in a centered position on the...

The specification discloses a fire retardant composition, a plastic based thereon, a process making for same and a building component based thereon wherein the fire retardant comprises chemicals which when added to the plastic resin composition will undergo fractional, endothermic reactions under the action of high temperatures. The most preferred chemicals disclosed in the specification, and thei...

Polyurethane foam products comprising a foam filled with a foam and a large amount of combustion retardant materials are described. The foams are prepared by foaming a polyurethane foam-forming diisocyanate and polyol around pre-formed polyurethane foam chips having incorporated therein solid combustion retardant materials. The polyurethane foam-filled foams have excellent physical characteristics...

Polyurethane foam products comprising a foam filled with a foam and a large amount of solid material inert to the foam products are described. The foams are prepared by foaming a polyurethane foam-forming diisocyanate and polyol around pre-formed polyurethane foam chips having incorporated therein or therewith solid materials inert to the foam. The inert material can be a fire- or combustion-retar...

A method of manufacturing a tire bead ring of the package type by winding metal wires on a form of revolution, the radially inner face of the tire bead ring having a frusto-conical shape of half angle alpha at the apex and of radius R with respect to the axis of rotation of the tire bead ring, in which a permanent circular deformation is effected on the wires prior to their winding on the form of...

CRUCIBLELESS PREPARATION OF RAPIDLY SOLIDIFIED FINE PARTICULATES A mass of normally solid material, e.g. metal or metal alloy, which at a temperature within 25 percent of its equilibrium melting point .degree.K has a surface tension of 10 to 2500 dynes/cm. and a viscosity of 0.001 to 1 poise, is changed into fine solid particulates, preferably flake-like to almost spherical shape. A solid mass of ...

The invention concerns a method of forming aggregates of particulate material such as coal dust, mineral ores, sand, graphite, sawdust, fertilisers and the like by treating the particles with the reaction product of (a) an aqueous emulsion of a synthetic polymer containing acidic groups and (b) a basic substance which neutralises at least some of the acidic groups. (a) is preferably acrylic acid o...

374955 A process for manufacturing low density 'nigh resilience polyurethane foams utilizing as a foam stabilizer selected low molecular weight alkoxysilicon compositions containing from one to 18 silicon atoms in which the alkoxymodifying group contains from 5 to 18 carbon atoms; solutions of such alkoxysilicon compositors and the foams derived from such process.

Metal powder having low oxygen and carbon contents and suitable for powder metallurgy may be obtained by using, as an atomizing medium, a special composition containing an alcohol having 1-4 carbon atoms and water as its essential components when impinging the atomizing medium against a molten metal in a state isolated from the ambient air to produce the metal powder.

An oil-atomized low-alloy steel powder having improved compressibility, compactibility and hardenability is disclosed. The steel powder has the chemical composition: C: no greater than 0.02%, Mn: 0.3-2.0%, oxygen: no greater than 0.10%, one or more of Cr: 0.1-2.0%, Mo: 0.05-1.0%, Ni: 0.1-2.0%, Cu: 0.2-2.0%, V: 0.03-0.5% and Nb: 0.05-0.5%, and the balance substantially iron.

A silicate containing adhesive is disclosed which is suitable for the production of laminated paper products comprising an aqueous solution of an alkali metal silicate together with soy polysaccharides in an amount effective to thicken the silicate solution, thereby providing a silicate adhesive which has good adhesive properties and may be used for bonding of two surfaces without excess penetrati...

The invention provides an improved multi-filament polyester fibrous material for incorporation into rubber which bears a topcoat comprising the combination of a dissolved, active isocyanate compound together with an endcapped silicone glycol copolymer. The multi-filament polyester material of the invention exhibits improved initial and long term adhesion to rubber and rubber articles prepared from...

The invention relates to a process of expanding styrene beads which comprises expanding said beads in the presence of a surfactant having a HLB value of 3 to 18 and showing a surface resistance less than 1014 OMEGA /cm. By the process, blocking of beads is prevented, antistatic effect can be given to the shaped article and saving of steam used in the course of expanding is achieved.

Arsenic anhydride of high purity is inexpensively manufactured from an arsenic sulfide-containing substance by first contacting the arsenic sulfide-containing substance with a copper sulfate-containing aqueous solution so as to provide an extract solution containing arsenious acid, the extract solution is subjected to aeration in the presence of copper ions such that the arsenious acid therein is ...

The invention provides a polyester fibrous material for incorporation into rubber bearing an adhesive activator finish comprising as the active ingredient, an epichlorohydrin ether or ester derived from a polyhydric alcohol or polycarboxylic acid containing up to about 20 carbon atoms. Adhesive activated fibers of the invention can obtain a degree of adherence to rubber equal to or closely approac...

A process for coating nylon film with polyvinylidene chloride is disclosed, comprising primer-coating the nylon film with an aqueous dispersion of a vinylidene chloride copolymer having a crystallinity index of less than 1.15 after 30 days' storage at 20 DEG C. and between about 1.05 and 1.20 when stored for 48 hours at 40 DEG C.; drying the primer-coated film; coating the primer-coated film wit...

Mechanically stable styrene polymer foams having highly desirable physical properties are prepared employing as a blowing agent a mixture of lower alcohols with chlorofluoromethanes.

The repair of a reinforced elastomer article (10) having a hollow (12) therein relates to utilizing an amine curable polymer or prepolymer and a cured elastomer patch. The hollow (12) in the elastomer as well as the areas juxtaposition to the patch (20) is coated with a treating agent (30). The amine curable polymer or prepolymer (40) which may have rubber particles therein is then applied to the ...