A method for the gaseous reduction of particulate ores to metals in a moving bed, vertical shaft reactor using a reducing gas externally supplied from a solid or liquid fossil fuel gasification unit. The reducing gas is reformed in a reforming zone located within the reactor and treated prior to injection into the reduction zone of the reactor. A portion of the reducing gas produced in a coal gasi...

Binding assembly for a cross country ski boot, having a safety device comprising a hooking arrangement in which the forward end of the boot is retained, and lateral retaining, complementary engaging portions on the ski and in the sole of the boot. The hooking and lateral retaining devices are rigidly affixed to each other without intervening gap, and are releasable at least laterally about at leas...

1503537 Chlorine - containing phosphonate ester mixtures MOBIL OIL CORP 5 June 1975 [26 June 1974] 24272/75 Heading C2P [Also in Division C3] The invention comprises a flame-retardant mixture comprising from 1 to 75% by weight of the monomer compound and from 99 to 25% by weight of a high boiling phosphonate comprising predominantly the compound The mixture may be obtained by thermally isomerizing...

Calculi, stones, calcified tissue and other material are broken down for removal from within a body using laser pulses that are delivered via an optical fiber and have a wavelength, intensity, energy per pulse and pulse duration selected to break down the object into smaller particles without delivering energy sufficient to cause damage to other tissue.

Cast film on the basis of low-density polyethylene is prepared by extruding the molten polymer at temperatures of the melt at the die gap of below 200 DEG C. Films that have been prepared this way have special mono-axial orientation as a result of which the mechanical properties are improved.

Method for improving the strength and impermeability of soils and engineering structures by forming a hydrogel composed of silicic acid and a cross-linked swellable organic polymer in or on the soil or structure treated. According to the invention an aqueous solution of a silicic acid gel precursor is contacted with a water-soluble gel-forming vinyl monomer in the presence of a redox polymerizatio...

A method for manufacturing an electric resistance element first prepares carbon particles by thermally treating these particles, such as carbon black at a temperature of at least 300 DEG C. Then a separate mixture of the carbon particles in an epoxy resin is prepared by mixing the carbon particles with a solution of an amino resin to at least partially cause adsorption, occlusion or reaction betw...

An adhesive composition for bonding cured layers of EPDM together is provided which comprises a neutralized sulfonated EPDM elastomeric terpolymer, an organic hydrocarbon solvent or mixture of an organic hydrocarbon solvent and an aliphatic alcohol, a para-alkylated phenol formaldehyde tackifying resin and an alkylphenol or ethoxylated alkylphenol. A method for bonding the cured layers of EPDM tog...

An improved seal is disclosed for hydraulically sealing a piston-cylinder assembly used in activation of a floating caliper disc brake. The improved seal comprises an annular groove circumscribing the cylinder wall within which a ring type elastomeric seal is seated so as to sealingly engage the piston. The floor of the annular groove has a flat portion and sloped portion. By varying the ratio of ...

A biaxially stretched film of an ethylene copolymer, preferably a mixture of (A) 90 to 50 % by weight of a linear ethylene- alpha -olefin copolymer having a density of 0.90 to 0.93 g/cm<3> at 25 DEG C and a melt index of 0.2 to 3.0 g/l0 min. and (B) l0 to 50 % by weight of an ethylene polymer having a density of 0.87 to 0.9l g/cm<3> at 25 DEG C and less than the density of the copolymer (A) by at ...

Alteration of a precisely located site on a substrate (35) using apparatus that comprises: a) a focusable ion source (10); b) a lens (22) positioned to focus ions emitted by the source into an ion beam (124); c) a vacuum chamber (30) for containing the substrate site in the path of the ion beam; and d) a directed gas inlet (55) positioned to provide a localized supply of a substance at the site wh...

On améliore la stabilité au stockage de ces compositions de polysiloxanes formatrices de mousse en utilisant comme charge une silice qui a subi un traitement préalable en vue de la rendre hydrophobe. Les compositions dont question peuvent comporter deux constituants qui ne doivent pas etre mélangés individuellement avant d'etre mélangés entre eux. Utilisation notamment dans le domaine médical, com...

A process for painting substrates in web or tabular form using roller application wherein a primer or base coat layer of paint and a top coat layer of paint are applied is characterized in that in the application of one of the two layers of paint a paint is used which contains in a solvent or dispersing agent a crosslinkable or thermoplastic resin which is liquid at the processing temperature, 0.5...

A container is disclosed for storing refrigerated liquids, in particular for liquefied gases, which comprises a steel reinforced concrete outer container and a steel inner container inserted into the outer container, where the steel inner container rests on an insulation and where an annular interspace is present between the outer circumference of the inner steel container and the inner circumfere...

1479404 Vector processing CONTROL DATA CORP 11 Feb 1975 [13 March 1974 17 May 1974] 5763/75 Heading G4A Individual streams of operands A 1 -A n and B 1 -B m forming a respective operand vectors A, B are passed through a buffer system in order to align the operands of one stream with correspondingly positioned operands in the other stream. The operands are supplied from a memory which is divided ...

Mixtures of finely divided solids and gases are subjected to a thermal treatment by feeding the optionally heated gas tangentially into the lower section of an axially symmetrical vessel, adding the solid to the gas at the latest in the vessel, heating or cooling the mixture of solid and gas in the vessel through the wall thereof and discharging the mixture in the upper section of the vessel. The ...

PURPOSE:To manufacture high purity metallic Cr by crushing metallic Cr contg. geseous impurities to a specified grain size, treating the resulting powder with an aqueous soln. of a mineral acid and reducing the powder at a specified temp. in a hydrogen atmosphere to remove the gaseous components. CONSTITUTION:Metallic Cr contg. gaseous impurities is coarsely crushed and further crushed to 16-325me...