A flat piece (7a,7b), such as a pinion, used during the grinding operation of a bore (118a,118b) along a determined grinding axis (5) is held in position by a holder (1). The holder support (20), defining a cage (62), has a longitudinal axis (21) coinciding with the grinding axis (5) and a first transverse longitudinal support face (115) for the piece. A longitudinal hole (68) in this support face...

Hair cutting apparatus having a housing and a laser device (12) disposed in the housing and arranged to provide a beam of light impinging on hair to be cut, the beam of light being operative to cut said hair. The beam of light has a wavelength which is strongly absorbed by hair to be cut but not strongly absorbed by adjacent tissue, is generally not absorbed by human skin, is generally absorbed by...

Die vorliegende Erfindung betrifft aus der Schmelze hergestellte, dichte aber atmungsaktive Flächengebilde aus Polymerharzmischungen aus mindestens zwei verschiedenen thermoplastisch verarbeitbaren Polyurethanen, wobei die verschiedenen thermoplastischen Polyurethane Weichsegmente mit unterschiedlicher chemischer Konstitution aufweisen, wobei das thermoplastische Polyurethan, welches die Matrix bi...

The present invention concerns a process for manufacturing conductive diamond layers, in particular layers of diamond doped with boron which are obtained by chemical vapour deposition (CVD). The process of the invention consists of forming a layer of diamond doped with boron using amino-borane compounds. These boron compounds are of particular interest since they are non-toxic and easy to manipula...

The invention concerns a method and a device for sublimating a solid material. The device according to the invention comprises: a) an enclosure (10) into which the solid material is introduced, which is held between two plates (13) of porous material; b) means (14) for sublimating the solid material inside the enclosure (10) so as to produce a vapour phase from the solid material; c) means (11, 12...

A controller for relieving a gear shift shock in a vehicle, comprising an input torque calculation portion which calculates the input torque of the stepped automatic transmission mechanism of the vehicle from engine r.p.m. and turbine r.p.m., a shift start recognition portion which recognizes the real mechanical shift start timing of the stepped automatic transmission mechanism in accordance with ...

Die Erfindung betrifft ein Verfahren zur Fahrtroutenplanung, insbesondere zur Zielführung von Fahrzeugen, bei dem an einzelnen Orten oder Streckenabschnitten eines Straßennetzes ermittelte Verkehrszustandsdaten, die Informationen über den Verkehrszustand in mindestens einer Fahrtrichtung enthalten, an einen Verkehrsrechner, der eine digitale Straßenkarte aufweist, übertragen und von dem Verkehrsre...

Es wird eine Vorrichtung zur berührungslosen optischen Abtastung von Informationen bei der Aufzeichnung auf und/oder bei der Wiedergabe von einem Aufzeichnungsträger (1) mit Aufzeichnungsspuren (2) beschrieben. Die Vorrichtung umfaßt eine Lichtquelle (3), die auf eine der Aufzeichnungsspuren (2) Licht aussendet und eine Detektoranordnung (4), die von der Aufzeichnungsspur (2) reflektiertes Licht e...

The system involves a series of automatic hotel terminals and computer means which, via public communication networks such as a telephone network, are connected to a series of interactive public terminals (3) structured on the basis of an internal processor unit (4) which, by means of a communication module (7), is associated to the various automatic hotel terminals from which it receives informat...

The invention relates to a process for the preparation of polyorganosiloxane-containing emulsions having a mean particle size of less than 0.3 mu m, where, in a first step, A) a concentrate is prepared from polyorganosiloxane, water and polyorganosiloxane-soluble emulsifier, and, in a second step, B) the concentrate obtained in this way is diluted with water to the desired polyorganosiloxane co...

A method of making a dispersion of a high viscosity siloxane in a volatile, especially cyclic siloxane, comprises first dispersing organopolysiloxanes having at least 2 Si-OR groups, wherein R is H or alkyl in a volatile siloxane, and adding a catalyst which is either a phosphonitrile halide having the general formula [X(PX2=N)nPX3]<+>[MX(v-t+1)Rt]<-> , or a heterogeneous catalyst, selected from L...

A system for maintaining a downhole instrumentation package in a roll stabilised orientation with respect to a drill string comprises an instrument carrier (812) which is mounted within a drill collar (810) for rotation about the longitudinal axis of the collar. An impeller (815) is mounted on the instrument carrier so as to rotate the carrier relatively to the drill collar as a result of the flow...

The production of particulate polymers obtainable by reacting a polymer based on C1-C22-alkyl esters of acrylic and/or methacrylic acid with ammonia and/or at least one primary amine RNH2, by   A) allowing a solution of the polymer to exit a nozzle in a multiplicity of liquid jets,   B) causing the liquid jets to break up into drops having a narrow particle size distribution by setting the noz...

A method for the preparation of a powder mixture of cured silicone microparticles and inorganic microparticles is disclosed, said method comprising (I) forming a water-based suspension of (A) a plurality of cured silicone microparticles having an average diameter of 0.1 to 200 micrometers, (B) a plurality of inorganic microparticles having an average particle diameter of 0.1 to 200 micrometers and...

A release material of a good release property is prepared by shaping a resin composition comprising a thermoplastic polyolefin resin, a dimethylpolysiloxane and a functional compound, irradiating the shaped composition with electron beams, and if desired, heat-treating the shaped composition.

Spherical vinyl chloride resin granules and a process for producing the same are disclosed. The granules exhibit excellent particle characteristics and sol-forming properties and are therefore useful as resins for paste.

Inert polymeric materials, for example polyamides, are bonded by applying to one or both surfaces a composition comprising a compound having a phenolic group and having substituents which reduce the toxicity of the compound, the composition being a solvent for the inert polymer, and mating the surfaces. Preferred compounds are carvacrol, and/or thymol. A eutectic mixture of carvacrol and thymol ma...

An optical recording apparatus comprises optical recording mediums each of which comprises a single plate substrate and recording layers which are formed on both sides of the substrate and available for recording and reproduction or for recording, erasing and reproduction with irradiation of laser beams, both surfaces of the recording medium being available for the simultaneous access, and floatin...

This invention relates to an apparatus for grinding a semiconductor wafer (W) which includes a table (2) having a work stage (10) on which a semiconductor wafer to be ground is placed, at least the work stage being rotated, and a grinding wheel (3) which is moved in a direction perpendicular to or parallel to the work stage while being rotated about an axis parallel to a rotational axis of the wor...

The present invention relates to a process and a device for polymerizing alpha-olefins such as ethylene or propylene in a gas phase. The device comprises a gas phase polymerization reactor (5) into which a suspension of prepolymer particles in liquid saturated hydrocarbon(s) is continuously introduced. The prepolymer suspension is prepared in one or more prepolymerization vessels (14) and is conti...