PCT No. PCT/FR84/00023 Sec. 371 Date Oct. 2, 1984 Sec. 102(e) Date Oct. 2, 1984 PCT Filed Feb. 2, 1984 PCT Pub. No. WO84/03071 PCT Pub. Date Aug. 16, 1984.The control device comprises an electric motor-gearbox unit (2) acting on the thrust bearing (16) of a clutch (1) and a switching device (3) comprising four transistors adapted to apply the voltage from the battery (30) with either polarity to t...

A disc brake for an automotive vehicle having a caliper slidably supported by at least one pin on a stationary supporting member secured to a non-rotatable portion of the vehicle is disclosed. An elastomeric bushing is disposed within a receiving bore through the caliper and contains a low friction bearing slidably receiving the caliper supporting pin therein. Seal means are provided at either end...

L'INVENTION CONCERNE UN APPAREILLAGE DE MANOEUVRE ET COMMANDE D'UN GROUPE D'ENTRAINEMENT D'UN VEHICULE AUTOMOBILE, QUI COMPORTE UN MOTEUR 1 POURVU D'UN ORGANE DE COMMANDE DE PUISSANCE AINSI QU'UN VARIATEUR DE VITESSE 3 POURVU D'UN DISPOSITIF DE COMMANDE DE RAPPORT DE TRANSMISSION ET UN MECANISME INVERSEUR 6 POURVU D'UN DISPOSITIF DE MANOEUVRE 5 ENTRE UNE POSITION DE MARCHE AVANT ET UNE POSITION...

The invention relates to a measuring instrument intended to be used in a borehole and working during the drilling operation, in which the working signals are transmitted by pressure pulses in a drilling fluid circulation system. The instrument comprises a sensor 101 for measuring the value of a parameter in the borehole, a pressure-pulse generator 40 intended to produce pressure pulses in the dril...

LE SYSTEME D'ECHANGE D'INFORMATIONS DE L'INVENTION COMPORTE DES ETIQUETTES ELECTRONIQUES PORTEES PAR DES OBJETS MOBILES, ET DES ORGANES FIXES DE TRANSMISSION DISPOSES DANS DES POSTES DE TRAVAIL. SELON L'INVENTION, LES ORGANES FIXES COMPORTENT UNE INTELLIGENCE 18 A 20 LEUR PERMETTANT DE COMMANDER UN PROCESSUS DE TRAVAIL SANS AVOIR A EN REFERER A TOUT INSTANT A UN ORGANE DE GESTION DISTANT.

The invention relates to a process for producing collagen gels which can be used for making thin collagen film products which possess excellent mechanical properties. The raw material used in the process is pure animal tendons at room temperature, whose collagen content is at least 30% and which are virtually free of ligament tissue. The tendons are ground in the presence of approximately 65% by w...

Method of making collagen gel suitable for use in the manufacture of thin collagen film articles having superior mechanical properties. The method includes the steps of providing clean animal tendon at room temperature containing at least 30% collagen essentially free of ligamentous tissue. The tendon is comminuted in the presence of about 65% water by weight to form a collagen slurry. The slurry ...

On prépare, par atomisation à partir d'un alliage en fusion de composition pondérale : chrome : 10 à 30 % aluminium : 1 à 25 % carbone : moins de 0,5 % nickel : moins de 10 % fer : reste avec une vitesse de refroidissement au moins égale à 400 degrés, un matériau en poudre, pour pulvérisation thermique, ayant une granulométrie de -150 à + 27 microns, dont la surface spécifique est supérieure à 50...

A method and apparatus for coating a substrate with a layer of polymerized material by simultaneous glow discharge polymerization and sputtering is disclosed. A substrate and two electrodes are placed in a chamber which can be evacuated. An appropriate pressure of a gas which can form a polymer is introduced into the chamber. A glow discharge is established in the gas. Molecules of starting gas an...

A security label comprised of at least two magnetically soft materials having different coercivities but similar thresholds of magnetic saturation.

A novel dental composition is provided, which comprises; a combination of 8 to 92% by weight of liquid acid phosphates obtained by replacing one or two hydrogen atoms of orthophosphoric acid with alcohols having 3 to 13 carbon atoms and being essentially insoluble in water, and 92 to 8% by weight of at least one of reactive multivalent metallic salts selected from the group consisting of oxides, h...

A soft fluoropolymer having a modulus of rigidity of 5-200 Kg/cm<2> is used to line a denture base. The fluoropolymer lining can be applied to the denture base by means of heat and pressure, thereby obviating the need for an adhesive. The fluoropolymer is selected from copolymers of various unsaturated fluoromonomers or CF3.NO; F- containing silicone rubber; F- containing triazine rubber; and F- c...

An electronic article surveillance system and a marker for use therein, which marker comprises a tuned resonant circuit including inductive and capacitive components formed of a laminate of a dielectric and conductive-multiturn spirals on opposing surfaces of the dielectric, wherein the capacitive component is formed as a result of distributed capacitance between the opposed spirals, and wherein t...

Un connecteur électrique pour établir une connexion à une barre omnibus sur une vitre, par exemple une lunette arrière en verre pour un véhicule, a la forme d'un T et comprend une traverse (1) formant un pont et une tige d'une seule pièce (2) qui a la forme d'une patte de connexion à angle droit (6). La tige (2) peut etre rabattue, de sorte que la patte (6) se trouve au-dessus de la traverse (1) ...

Method for controlling the temperature in a reactor for exothermic reactions at high temperature, in the presence of a catalytic fluidized bed, which consists in feeding to a cooling device consisting of heat exchange tubular elements arranged inside the fluidized bed, a controlled amount of water such as to be thoroughly evaporated, superheated steam being generated and the fluidized bed temperat...

Wood is impregnated with an impregnant comprising a mixt. of water and a miscible, hydrophilic low mol. wt. resin which can harden at ambient temp. without addn. of external energy to large, water-insol. macromolecules. - The resin may be as a micellar soln. or a highly dispersed aq. emulsion. As a micellar soln., the impregnant may contain a catalysed, oxidatively drying oil-modified alkyd, oil-m...

Magnetic cores of clamp-on type current measuring devices having a Hall-effect device for measurement of D.C. currents are provided with stabilizing coils which are periodically energized to substantially eliminate the characteristic hysteresis effect of the core material. A magnetic core of the type which is split to permit opening and subsequent clamping onto a conductor, has one section thereof...

PURPOSE:To prevent magnetic particles from leaking from a magnetic particle restraining member by forming at least two magnetic brush layers which circulate at different speeds at the downstream side and upstream side of a magnetic pole position in the moving direction of a developer holding member. CONSTITUTION:A magnet 13 is provided in a sleeve 12 provided to a photosensitive body 11 across a g...

Process for producing foam moldings with an insert executed in a mold for foam molding consisting of a core block and a cavity block. The process comprises steps of: (a) having a film adhering to and covering the insert on one side thereof where a foam layer is formed; (b) letting the skirt portion of the film to be pinched or sandwiched by the uniting portion of the two blocks while the foaming p...

The invention relates to a housing for a semiconductor circuit arrangement which operates at voltages such as 10000 V between the electrodes and the (electrical) earth. In addition to a metallic base (21) for mounting and dissipating heat, said housing has a sealed ceramic cavity through which the external leads (6, 7) extend. Said cavity is formed by a bottom section (25) of the housing, a side b...