Ruthenium-on-charcoal and ruthenium-on-carbon black catalysts, containing from 0.1 to 5% by weight of iron, for the preparation of olefinically unsaturated alcohols by selective hydrogenation of the corresponding alpha , beta -unsaturated carbonyl compounds in the liquid phase are prepared by modifying the catalyst with iron only after it has been impregnated with the ruthenium compound, and redu...

PURPOSE:To utilize an engine brake as preventing an engine stop from occurring by changing a setting speed of clutch disengagement to the higher speed in proportion as going to smaller in a difference between speeds at both input and output sides of a reduction mechanism. CONSTITUTION:A flywheel damper 11 is connected to a forward-backward transfer mechanism 13 equipped with both forward and backw...

Centrifuge apparatus for use in separating a heavy phase from a light phase in a rotating bowl, the apparatus comprising means defining a channel forming a continuous loop and having an inlet, a first outlet, and a dam portion spaced along the channel from the inlet and having an inner wall radius that is greater than that of adjacent portions so as to provide a heavy phase dam region which can be...

The present invention relates to yarn-deflecting elements, especially for a hollow-spindle machine. Elements, characterised in that they are movable in translational motion by movement means from a first position during the normal operation of the machine, in which each yarn (2) is no longer in contact with the corresponding deflecting element and thus with the corresponding bearing element (...

Method of restructuring a group of fine particles of particle sizes smaller than 100 microns, characterised in that the said particles to be restructured are placed in a cryogenic liquid bath which is inert towards the said particles, the restructuring operation proper is ensured, after which the cryogenic liquid is withdrawn, for example by evaporation. Applications to the production of meta...

The invention relates to a process for starting a vehicle with repeated forward-reverse run, in course of which in the drive-chain of the vehicle an automatic transmission /2/ is driven with an internal combustion motor /1/ through the incorporated hydrodynamic torque converter /16/ or in a given case with a dry friction clutch /15/ shortcircuiting it, either directly with the automatic transmissi...

Process for the catalytic cracking of a hydrocarbon oil wherein a gas/hydrocarbon oil mixture is introduced into the reactor by means of at least one device which comprises at least one supply means of which the wall comprises openings, the hydrocarbon oil is introduced into the supply means and mixed with an at least partly surrounding gas which enters under pressure the supply means through the ...

PURPOSE: To make it possible to obtain foil or anisotropic layer which may be easily produced at desired accuracy by forming a layer of an optically anisotropic material of a synthetic resin compsn. having a polymer network which has spiral arrangements. CONSTITUTION: A liquid crystal cell 10 has a twisted nematic liquid crystal layer 11 between two electrode substrates 12 and 13 and is arranged b...

La présente invention concerne une fixation de sécurité pour ski destinée à maintenir l'avant d'une chaussure (2) montée sur le ski (3).
Cette fixation est caractérisée en ce que chaque axe d'articulation (8) d'une aile (6) par rapport au corps est engagé dans au moins un trou oblong (21) autorisant un déplacement relatif, sur une courte distance, de l'aile par rapport à l'axe d'articulat...

A ski binding, which grips the toe end of the sole of the ski boot, is mounted on a plate (2) with a rearwards extension which is hinged to the ski by a transverse bolt (3). A vertical extension (2b) of the plate is connected to a lever (7) which carries the adjusting screw (16) for the ski-boot retainer (19. A forward extension (2c) of the plate is pressed against the overhanging edge of the hold...

The invention relates to a coated cemented carbide body for rock drilling having a substrate containing at least one metal carbide and a binder metal and an at least partly covering coating comprising at least one diamond- or cBN- layer applied by CVD- or PVD-technique. The cemented carbide body has a core of cemented carbide containing eta-phase surrounded by a surface zone of cemented carbide fr...

A sulfur-curable rubber skim stock which upon curing exhibits improved adhesion to brass-plated steel under high humidity, heat aging conditions is provided. The sulfur-curable rubber skim stock comprises natural rubber or a blend of natural rubber and synthetic rubber, carbon black, an organo-cobalt compound, sulfur and a small amount of dithiodipropionic acid. The skim stock can be utilized in v...

The invention relates to a process for the production of reinforced semifinished products/composite materials, the semifinished products/composite materials produced by the process and finished articles consisting of the semifinished products and composite materials according to the invention, characterised in that specific polyamide materials containing phenol compounds, in particular novolaks, a...

PURPOSE:To produce a thin oxide film with large area excellent in characteristics by disposing a substrate and a target at a specific distance and carrying out sputtering while supplying excited O2, O2+N2, or N2O gas to the vicinity of the above substrate. CONSTITUTION:A substrate 2 on a substrate holder 3 containing a heater 4 and a target 5 are disposed in a manner to be opposed to each other in...

PURPOSE:To produce a thin film of oxide superconductor having large area and excellent in characteristics by disposing a substrate and a target at a specific distance and carrying out sputtering while supplying O3 to the vicinity of the substrate. CONSTITUTION:A substrate 2 is held by a substrate holder 3 containing a heater 4 into a state where the heating of the substrate 2 is possible in a cham...

PURPOSE:To produce a thin film of oxide superconductor having large agea and excellent in characteristics by disposing a substrate and a target at a specific distance and carrying out sputtering while producing oxygen plasma in the vicinity of the substrate. CONSTITUTION:A substrate 2 is held on a substrate holder 3 containing a heater 4 in a chamber 1, and a target 5 is disposed in a manner to be...

A pneumatic radial tire including at least one ply of carcass layer comprising a number of cords disposed at right angle with respect to a circumferential direction of the tire and anchored at a pair of beads, said cords of the carcass layer being treated with adhesive treating agents, i.e. an epoxy treating agent and a RFL treating agent, at the stage of both yarns and cords, said cords being for...

The film is composed of an initial polyethylene resin containing from 8 to 18 % of EVA, of a polypropylene resin and of a neutral filler which makes it possible to reduce tackiness to the touch and to increase the rigidity of the film without appreciably impairing its weldability using high frequency. It makes it possible to obtain articles by high-frequency welding assembly and mechanical cutting...

The housing comprises a bottom (1), a belting (2) and a cover (3). Fixing means (9, 10, 11; 6) respectively ensure mechanical assembly of the cover (3) and of the belting (2), on the one hand, of the belting (2) and of the bottom (1) on the other hand. According to the invention, the belting (2) and the bottom (1) are indented with fluting defining channels (15) and (16) respectively, in the vicin...

Silicone-based seam-sealing material (I) contains a medium-viscosity silicone polymer (II) and at least one solvent (III). (II) is pref. a polysiloxane and (III) is/are polar or non-polar, environmentally-harmless organic solvent(s), esp. acetone, ethanol and/or MEK; (I) also contains butanone; compsn. of (I) is 70 pts. vol. (II), 20 pts. vol. polar solvent and 10 pts. vol. toluene and 5 pts. vol....