Pour actionner un embrayage à friction (5) lors du démarrage d'un véhicule automobile entraîné par un moteur à combustion interne (1), on prévoit un circuit de régulation de vitesse de rotation (17) qui règle un servoentraînement de réglage (7) de l'embrayage (5), en fonction de l'écart entre un signal de vitesse réelle (9) représentant la vitesse de rotation du moteur à combustion interne (1) ...

Procédé pour agglomérer une poudre de polymère qui comprend le mélangeage d'une poudre de polymère avec une résine d'alcool polyvinylique contenant un groupe oxyalkylène en présence d'eau et le séchage du mélange résultant. Conformément au procédé de la présente invention, il est possible de préparer facilement des granulés de polymère ayant peu de poudre fine, une distribution granulométrique ...

An aqueous silicone dispersion crosslinking to an elastomer when water is removed, comprising: - 100 parts of an emulsion (A) of the oil-in-water type of an alpha , omega -dihydroxypolydiorganosiloxane, stabilised with an anionic and/or nonionic surfactant, - 0.1 to 20 parts of aminosilane and/or of amidosilane, - 0 to 3 parts of a metal cure catalyst, - 0 to 250 parts of a nonsiliceous inorg...

The present invention relates to a piston cap for a disc brake comprising a brake motor consisting of a piston 24 sliding in a cylinder 26, this cap consisting of a flexible material and providing sealing between the piston 24 and the cylinder 26 by means of a bead 32 located on its internal periphery and being housed in an annular groove 34 made on the crown of the piston 2, and of a holding part...

Process for treating a reinforcement at least the surface of which is metallic so as to promote its adhesion to a rubber-based composition, characterised in that the surface of this reinforcement is placed in contact with a solution of at least one cobalt and/or nickel compound in at least one organic compound containing one or more hydroxyl groups at a temperature above 100 DEG C before the reinf...

A breathable polyolefin film is prepared by melt embossing a highly filler polyolefin film to impose a pattern of different film thickness therein and by stretching the melt embossed film to impart greater permeability in the areas of reduced thickness in comparison to the areas of greater thickness.

A continuous coupled jet-cooking/spray-drying process for processing inherently water-dispersible or water-soluble crystalline polymers, such as starches, polygalactomannan gums, and fully hydrolyzed polyvinyl alcohols, is disclosed. It involves the steps of: (a) forming a slurry or paste of the polymer and water, (b) jet-cooking the slurry or paste with steam at a temperature sufficient to fully ...

A process for the production of coated or lacquered metal containers for receiving foods is described, in which the internal coating takes place by first applying a vinylchloride-based organosol followed by baking for 8 to 15 minutes at 175 DEG to 225 DEG C. Then an epoxy-phenol lacquer is applied and also baked for 8 to 15 minutes at 175 DEG to 225 DEG C. The metal sheet is then shaped to the...

A differential gear assembly particularly for motor vehicles having a rotatably supported differential housing, a driving gear attached to the differential housing, at least two rotatably supported differential bevel gears and a pair of output bevel gears which engage into the differential bevel gears with a constant velocity universal joint being integrated into each of the output bevel gears. Th...

La présente invention concerne un dispositif formant différentiel.
Le dispositif est caractérisé en ce qu'il comprend un boîtier interne (9) accouplé à un boîtier externe (1) d'une part par des moyens autorisant un débattement angulaire relatif de part et d'autre une position moyenne et d'autre part par un moyen d'accouplement à friction (14) de façon que ce dernier agisse comme amortisse...

The invention relates to a crusher of the type comprising a chute 16 for feeding material to be crushed, rotary crushing means 24-24' and an enclosure 27 for collecting the crushed material, the whole unit being submerged in a liquid medium. According to the invention, the crusher furthermore comprises means 40, 46 for the recirculation of the liquid medium located in the collection enclosure towa...

In a coupling device (1) for fastening together two components so that they are readily detachable, a first component has first and second recesses (6, 6') into which first and second protrusions, (5, 5') of a second component are inserted. A sleeve (9) open at its side, is mounted in the second recess (6') and is rotatable between an open position in which its open side (10) is in registry, and a...

Adhesive containing (meth)acryloyloxyethyl dihydrogen phosphate and/or di(meth)acryloyloxyethyl hydrogen phosphate and acidic (meth)acryloyloxyethyl esters of carboxylic acids can be used to improve the adhesion of photopolymerisable dental filling materials to the enamel and dentine. In this connection the very good adhesion to the dentine immediately after curing proves particularly advantageous...

A microfilled dental composite containing from about 30% to about 60% filler. The filler being sub-micron hydrophobic silica particles of about 0.01 - 0.04 micrometers in diameter. The filler is dispersed in ethoxylated bisphenol A dimethacrylate resin containing suitable aliphatic dimethacrylate diluents up to about 40% by weight and curing agents effecting curing.

A magnetic marker for use with electronic article surveillance (EAS) systems in which a two-directional response is obtained. The marker (10, 24,34) comprises a substantially two-dimensional, sheet-like substrate (12, 26, 36) having multiple metallic filaments (16, 30, 40) randomly dispersed in or adhered thereto, so as to be substantially parallel to the plane thereof. The filaments are selected ...

A biocidal preservative for cellulose-containing products containing a biocidally effective amount of a polymeric quaternary ammonium borate obtained by simultaneous reaction of (A) at least one member of the group consisting of boric acid and salts and esters thereof and (B) an amine of the formula and (C) ethylene oxide or propylene oxide wherein R1 is alkyl or alkenyl of 8 to 22 car...

A water repellent having the following components (A), (B), (C) and (D) emulsified in water: (A) a wax having a melting point of from 40 to 90 DEG C; (B) a styrene-maleic anhydride copolymer; (C) a water-soluble alkaline compound; and (D) a polyvinyl alcohol having a saponification degree of at least 85 mol%. t

PURPOSE:To restrict an increase of resistance in aeration during a condensation and a frosting and reduce a reduction of a cooling power and a heating power of a heat pump by a method wherein two kinds of lengths of fins at an air upstream side are applied and alternatively piled up, the longer fins are processed with water repellent finishing and then the short fins are processed with a hydrophil...

PURPOSE: To easily collect and interpret acoustic data, by converting an electric signal into process related information by algorithm in a computer. CONSTITUTION: The acoustic/signal analysis system is constituted of a sensor 1, a head amplifier 2, a data collection device 3 and a computer 4. Vibration energy of a reactor is converted into an electric signal as the function of a time with a senso...

PURPOSE:To save the time and the labor required for production of a user program by instructing the read of the definition information corresponding to plural screens of a process in accordance with the display order of screens when the process is started. CONSTITUTION:A screen transition control means 151 controls the transition states of the screens corresponding to the processes requiring the d...