baber/WOPTO huggingface dataset:
Patent FR-2497833-A1 (FR)
IPC: C23C14/08
Filed: 1982-02-19
Abstract: The surface of a metal article which is exposed to the atmosphere and abrasion during normal use of the article is protected from scratches and/or corrosion during such use by a thin transparent abrasion-resistant film of an inert non-metallic material such as SiO2, SiC, Si3N4, TiO2, MgO, Al2O3, Ta2O5, Nb2O5, GeO2, spinel and selected colorless glass compositions. The protective film is preferably deposited by RF-sputtering techniques and undesirable coloration of the article by optical interference effects from incident light rays is avoided by properly correlating the film thickness with the refractive index of the particular material used to form the film. The invention permits the use of thinner gold plating on such items as articles of expensive jewelry and bracelets and cases for fine wristwatches without detracting from the quality, durability or appearance of the merchandise. Alternative embodiments in which several films of various selected non-metallic inert materials are combined to form composite protective coatings that provide additional cost and manufacturing advantages are also disclosed along with methods for sputter-depositing the protective films in the proper thicknesses to avoid optical discoloration effects, either on articles that have been previously plated with gold or which have been provided with a sputter-deposited layer of gold by sequentially operating the sputtering apparatus.
Patent FR-2501255-A1 (FR)
Title: Machine bourreuse de voie ferree a equipement de bourrage completement asynchrone
Inventor: THEURER JOSEF
IPC: E01B27/17
Filed: 1982-03-08
Abstract: L'INVENTION CONCERNE UNE MACHINE BOURREUSE DE TRAVERSES 4 D'UNE VOIE FERREE A GROUPE DE BOURRAGE 1 DEPLACABLE EN HAUTEUR SUR LE CHASSIS DE MACHINE 2 PAR L'INTERMEDIAIRE D'UNE COMMANDE 9 ET COMPORTANT, SUR UN PORTE-BOURROIRS COMMUN 7, RESPECTIVEMENT DES BOURROIRS 12-13 DISPOSES PAR PAIRES, DESTINES A PLONGER DANS LE BALLAST DANS LA ZONE DE CROISEMENT DE LA TRAVERSE ET DU RAIL ET QUI SONT DEPLACABLES PAR L'INTERMEDIAIRE DE VERINS HYDRAULIQUES 23 D'UNE MANIERE INDEPENDANTE L'UN DE L'AUTRE OU PLEINEMENT ASYNCHRONE L'UN VERS L'AUTRE. CHAQUE PAIRE DE BOURROIRS 12-15 COMPORTE UNE COMMANDE 21 DE MISE EN VIBRATION DES BOURROIRS. LES BOURROIRS 12, 13 OU 14, 15, SUR UN COTE DE RAIL, DE CHAQUE PAIRE DE BOURROIRS 19 SONT RELIES SEULEMENT A UN VERIN HYDRAULIQUE COMMUN DE COMMANDE D'APPROCHE DE BOURRAGE 23 ET CHAQUE PAIRE DE BOURROIRS 19 COMPORTE UN DISPOSITIF DE CENTRAGE ELASTIQUE 25 POUR L'ORIENTATION SYMETRIQUE PAR RAPPORT AU MILIEU LONGITUDINAL DU GROUPE DE BOURRAGE ET POUVANT PRENDRE APPUI CONTRE LE PORTE-BOURROIRS 7. L'INVENTION EST APPLICABLE A L'ENTRETIEN DES VOIES FERREES.
Patent FR-2502390-A1 (FR)
Title: Element de contact electrique sur substrat isolant, methode de fabrication et commutateur electrostatique comprenant cet element
Inventor: GREENWOOD JOHN CHRISTOPHER
IPC: H01H59/00
Filed: 1982-03-17
Abstract: CET ELEMENT DE CONTACT COMPREND UNE ARMATURE 12 FABRIQUEE D'UNE SEULE PIECE AVEC LE SUBSTRAT ISOLANT 10 ET ARTICULEE SUR CE DERNIER PAR UNE REGION AMINCIE FORMANT CHARNIERE 13. L'ENSEMBLE PEUT ETRE MONTE DANS UN BOITIER SCELLE 21, 24, 26 DONT LA PLAQUE DE BASE 21 COMPORTE UNE ELECTRODE 22 POUR L'ATTRACTION ELECTROSTATIQUE DE L'ARMATURE 12; ET DES CONTACTS FIXES 23 ASSOCIES A AU MOINS UN CONTACT MOBILE 31 DEPOSE SUR L'ARMATURE. LE MATERIAU ISOLANT UTILISE POUR L'ELEMENT DE CONTACT 10 EST DE PREFERENCE DU SILICIUM DOPE AU BORE ET L'ARMATURE PIVOTANTE 12 EST PRODUITE PAR ATTAQUE CHIMIQUE SELECTIVE DU SILICIUM. APPLICATION AUX MODULES DE COMMUTATION A GRANDE DENSITE DE CONTACTS, NOTAMMENT POUR LES CENTRAUX TELEPHONIQUES.
Patent FR-2524132-A1 (FR)
Title: Heat exchanger using bundle of tubes - where one fluid, esp. dust laden gas, can flow along straight path through bore of exchanger
Inventor: BARROYER PAUL
IPC: F28D7/06
Filed: 1982-03-26
Abstract: Exchanger includes an outer, tubular casing (a) contg. an inner tubular casing (c). A sealing ring is located in the annular cavity (b) between casings (a,c) to form an inlet chamber (b1) and an outlet chamber (b2) for one fluid (I). Inside casing (c) are circular rows of tubes bent at both ends so fluid (I) can flow through the tubes from chamber (b1) to chamber (b2). A second fluid (II) flows through the entire bore of casing (c) over the outside surfaces of the tubes without changing its direction of flow. The length of chambers (b1,b2) pref. compensates for the thermal expansion and contraction of the tubes; and the casings (a,c) may be circular or square. Used e.g. for corrosive fluids, esp. for cooling a hot, corrosive gas contg. dust, where the gas can flow along a straight path through the inner casing (c).
Patent FR-2524321-A1 (FR)
Title: Dispositif d'injection " manuelle ou mecanique " a usage medical et veterinaire
IPC: A61M5/20
Filed: 1982-03-30
Abstract: L'INVENTION CONCERNE UN DISPOSITIF D'INJECTION DE LIQUIDE FONCTIONNANT SOUS FORME MANUELLE OU MECANIQUE. IL COMPORTE UNE CROSSE BATIE 1 AYANT LA FORME D'UN REVOLVER, UNE SERINGUE D'INJECTION 4 AVEC SON SUPPORT, UNE MIRE D'INJECTION 5 PERMETTANT DE POSITIONNER L'IMPACT DE L'AIGUILLE 8 ET SON DEGRE DE PENETRATION, UNE GACHETTE 13 QUI, PAR PRESSION, DECLENCHE, PAR L'INTERMEDIAIRE D'UN SYSTEME DE TRANSMISSION A BARILLET 26, LE DEPLACEMENT DU PISTON 28 DANS LE CORPS DE SERINGUE 4 ET L'INJECTION DU LIQUIDE. PARMI LES APPLICATIONS DE L'INVENTION ON PEUT CITER LES INJECTION MEDICALES OU VETERINAIRES.
Patent FR-2526182-A1 (FR)
Inventor: BORGNAT DANIEL
IPC: B01J8/26
Filed: 1982-04-28
Abstract: Method and a device for controlling the temperature of a reaction carried out within a vessel in a fluidized bed containing solid particles which can be entrained with the smoke and then recovered in a separating device and recycled into the fluidized bed after passage through a heat exchanger where they yield up their heat. The flow of particles separated from the smoke is divided into two parts, a hot part recycled directly into the fluidized bed and a cool part constituted by particles taken up at the outlet of the separating device and passed into the heat exchanger to constitute a reserve of cold material which can be mixed with the hot part before reinjection into the fluidized bed, the relative flow rates of the hot particles and of the cold particles being regulated so as to control the flow-rate and the average temperature of the flow of particles recycled into the fluidized bed for maintaining at the desired level the reaction temperature in the midst of the latter.
Patent FR-2505963-A1 (FR)
Title: Joint de tuyaux
Inventor: GREATOREX CYRIL BARRIE
IPC: F16L21/06
Filed: 1982-05-10
Abstract: CE JOINT COMPREND LES EXTREMITES ADJACENTES 2 DE DEUX TUYAUX DISPOSES COAXIALEMENT BOUT A BOUT; UNE GARNITURE D'ETANCHEITE ANNULAIRE 3 DISPOSEE AUTOUR DES DEUX EXTREMITES DE TUYAUX; ET DEUX ORGANES DE SERRAGE 7, 8 DONT CHACUN A UNE FORME GENERALE SEMI-CYLINDRIQUE ET QUI SONT AJUSTES AUTOUR DES EXTREMITES DES TUYAUX ET DE LA GARNITURE D'ETANCHEITE AVEC LEURS BORDS LATERAUX 9, 10 S'ETENDANT AXIALEMENT ET ADJACENTS FIXES LES UNS AUX AUTRES; AU VOISINAGE DE LEURS BORDS LATERAUX FIXES LES UNS AUX AUTRES, LA CONFIGURATION DES DEUX ORGANES DE SERRAGE 7, 8 S'ECARTE TANGENTIELLEMENT DE LEUR CONFIGURATION GENERALE SEMI-CYLINDRIQUE, ET LA GARNITURE D'ETANCHEITE PRESENTE DANS LA MEME REGION UNE PARTIE SUREPAISSIE 15 AYANT UNE FORME EN COIN CORRESPONDANTE. APPLICATION AUX CANALISATIONS D'ADDUCTION D'EAU, AUX DRAINS ET AUX EGOUTS.
Patent FR-2527633-A1 (FR)
Title: Dissolver for low cast sugar in syrup to be evaporated - produces highly conc. soln. which reduces heat for evapn.
Inventor: LAMY GEORGES
IPC: C13B25/00
Filed: 1982-05-28
Abstract: An industrial sugar dissolving plant in which sugar of the second or third casts is dissolved in syrup or sugar juice is claimed. The dissolver is of the type comprising a tank, pref. heated, contg. an agitator to mix the sugar and syrup. A long horizontal tank of rectangular cross-section is used, with an inlet for sugar and syrup at one end and an outlet for prod. at the other. Transverse vertical partitions devide the tank into a number of compartments in series between inlet and outlet The compartments communicate by alternately underflowing and overflowing successive partitions which have been short-ended in depth at bottom or top respectively. Each compartment contains a high speed, vertical shaft fitted with a screw-propeller type agitator of high capacity.The dissolver is used to dissolve sugar of second or third cast in syrup. The sugar-enriched syrup is evaporated to crystallise first cast sugar. The dissolver produces a sugar soln. of extremely high concn., very close to satn.. The subsequent evapn. stage requires less heat to drive off the water.
Patent FR-2528511-A1 (FR)
Title: Chapeau de palier pour arbre a cames en tete de moteur a combustion interne, et moteur correspondant
Inventor: BORTOLUSSI GERARD
IPC: F01L1/053
Filed: 1982-06-14
Abstract: CHAQUE ARBRE A CAMES EN TETE 4, 5 DU MOTEUR TOURILLONNE DANS DES PALIERS 6, 7 DONT UNE MOITIE EST FORMEE DE LA CULASSE 2 ET L'AUTRE MOITIE DANS DES CHAPEAUX COMMUNS 8 VISSES SUR LA CULASSE. ENTRE CHAQUE ARBRE A CAMES ET LA VIS DE FIXATION CENTRALE 17 DES CHAPEAUX SONT PREVUS DES ORIFICES 18 QUI PERMETTENT D'ACCEDER AUX VIS 3 DE FIXATION DE LA CULASSE SUR LE BLOC-CYLINDRES 1. ON OBTIENT AINSI UN MOTEUR PLUS COMPACT DANS LEQUEL LES SOUPAPES 10, 12 NE SONT PAS EXAGEREMENT INCLINEES.
Patent FR-2510092-A1 (FR)
Title: Procede de production d'un fluorure de graphite
Inventor: KITA YASUSHI
IPC: C01B31/00
Filed: 1982-06-16
Abstract: LA PRESENTE INVENTION CONCERNE UN PROCEDE DE PRODUCTION D'UN FLUORURE DE GRAPHITE. SELON L'INVENTION, ON FAIT REAGIR UN MATERIAU DE CARBONE AYANT UNE DIMENSION MOYENNE DE 100M A 10MM, AVEC DU FLUOR; ET ON SOUMET LE FLUORURE DE GRAPHITE PRODUIT A UN TAMISAGE AVEC UN TAMIS POUR RECUPERER LE FLUORURE DE GRAPHITE DU MATERIAU DE CARBONE N'AYANT PAS REAGI; ON UTILISE UN RESERVOIR 1 AVEC UN RECHAUFFEUR 2, UN DEBITMETRE 3, UN AGITATEUR 4, UN MOTEUR 5, UNE VANNE D'ENTREE 6 ET UNE VANNE DE SORTIE 7, UNE SOUPAPE DE SURETE 9, ET UN MANOMETRE 10. L'INVENTION S'APPLIQUE NOTAMMENT A LA PRODUCTION A ECHELLE COMMERCIALE DE FLUORURE DE GRAPHITE.
Patent FR-2507986-A1 (FR)
Title: Cylindre a accumulation de force a ressort, et en particulier cylindre de frein a accumulation de force a ressort pour vehicules routiers
Inventor: PRESSMAR MANFRED
IPC: B60T17/08
Filed: 1982-06-23
Abstract: CYLINDRE 1 DONT LA CHAMBRE DE RESPIRATION 24 CONTENANT LE RESSORT ACCUMULATEUR 23 EST RELIEE A L'ATMOSPHERE PAR UNE CANALISATION 28 ET UN FILTRE 36 INTERDISANT LA PENETRATION DE CRASSE, DE POUSSIERE ET DE PROJECTIONS D'EAU. LA CANALISATION 28 ABOUTIT A UNE BRIDE D'APPUI 2 DU CYLINDRE 1, DANS LAQUELLE UN ALESAGE CONTIENT LE FILTRE 36 ET LA GARNITURE A LABYRINTHE 38, QUI SONT POSITIONNES PAR UN EPAULEMENT DE L'ALESAGE 33 ET L'EXTREMITE EMMANCHEE DE LA CANALISATION 28. LE RACCORD ATMOSPHERIQUE DE LA CHAMBRE DE TRAVAIL A ACCUMULATION DE FORCE SE TROUVE EN AVAL DU FILTRE. LE CYLINDRE 1 SELON L'INVENTION EST AVANTAGEUSEMENT UTILISABLE COMME CYLINDRE DE FREIN A ACCUMULATION DE FORCE A RESSORT POUR VEHICULES ROUTIERS ET EST GENERALEMENT ASSEMBLE AVEC UN CYLINDRE DE FREIN MONOCHAMBRE 40 POUR FORMER UN CYLINDRE DE FREIN MONOCHAMBRE A ACCUMULATION DE FORCE A RESSORT.
Patent FR-2530247-A1 (FR)
Inventor: AUBERT DANIEL
IPC: C07D495/04
Filed: 1982-07-13
Abstract: This invention relates to new thieno [3,2-c] pyridine derivatives having the formula: (I) in which: Y represents the OH group or an OR group in which R is a straight or branched lower alkyl radical, or Y represents a group in which R1 and R2 are each independently of each other, hydrogen or a straight or branched lower alkyl group; or R1 and R2 form together and with the nitrogen atom to which they are attached a heterocycle which may include a second heteroatom such as oxygen or nitrogen, wherein the latter may be substituted by a lower alkyl or benzyl radical which may be substituted; and X represents hydrogen, a halogen or a lower alkyl radical; and their addition salts with pharmaceutically acceptable mineral or organic acids if Y represents the group OR or or with mineral bases if Y represents OH, as well as the two enantiomers or their mixture. The invention also relates to the preparation process of new thieno [3,2-c] pyridine derivatives and to their therapeutic application as blood-platelet aggregation inhibiting agents and antithrombotics.
Patent FR-2530279-A1 (FR)
Title: Dismantleable modular distendable framework and shelter using this framework.
IPC: E04H15/20
Filed: 1982-07-16
Abstract: The present invention provides a framework consisting of long cylindrical distendable members 1 which are combined with each other by means of particularly simple flexible assembly elements consisting, for example, of a fabric cylinder. The longitudinal members are blocked in the assembly elements following their distension. A bag may be hooked onto the inside of a framework constituted according to the present invention in order to constitute a shelter which can be particularly quickly mounted and dismantled and which can have any desired configuration.
Patent FR-2515122-A1 (FR)
Title: Lave-vitre perfectionne anti-eclaboussure pour vehicules legers
Inventor: YAGASAKI AKIO
IPC: B60S1/04
Filed: 1982-10-21
Abstract: LAVE-VITRE POUR UN VEHICULE LEGER. IL COMPREND UN RESERVOIR A LIQUIDE DE NETTOYAGE; UN CONDUIT SERVANT DE PASSAGE 18 DU LIQUIDE DE NETTOYAGE DELIVRE PAR LE RESERVOIR ET PLACE AU MOINS LE LONG D'UNE PARTIE DE LA PERIPHERIE DU PARE-BRISE 13; UNE BUSE 21 DE PROJECTION DU LIQUIDE DE NETTOYAGE, SITUEE AU MOINS EN UN ENDROIT DU CONDUIT 18 AINSI QU'UN TUYAU RACCORDANT LE RESERVOIR A LIQUIDE DE NETTOYAGE ET LE CONDUIT 18. PAR EXEMPLE, LE CONDUIT EST UN TUBE 17 ENCASTRE DANS UN JONC DE BORDURE 16 LONGEANT LA ZONE PERIPHERIQUE 13A DU PARE-BRISE 13.
Patent FR-2515208-A1 (FR)
Title: Procede pour la production d'hybridomes sous-cultivables de cellules t humaines producteurs de lymphokine
Inventor: OSAWA TOSHIAKI
IPC: C12N5/16
Filed: 1982-10-27
Abstract: LE PROCEDE SELON L'INVENTION COMPREND LES ETAPES SUIVANTES: A.ON TRAITE UNE CELLULE DE LEUCEMIE AIGUE HUMAINE AVEC UN INHIBITEUR DE SYNTHESE DE PROTEINES OU AVEC UNE COMBINAISON D'UN INHIBITEUR DE SYNTHESE DE PROTEINES ET D'UN INHIBITEUR DE SYNTHESE D'ARN, DE MANIERE A INHIBER COMPLETEMENT LA CROISSANCE DE LA CELLULE DE LEUCEMIE AIGUE HUMAINE; B.ON ACTIVE INDEPENDAMMENT UNE CELLULE T HUMAINE AVEC UN MITOGENE OU UN ANTIGENE, DE MANIERE A PRODUIRE LA TRANSFORMATION DE LA CELLULE T HUMAINE AVEC PRODUCTION DE LA LYMPHOKINE RECHERCHEE; C.ON EFFECTUE LA FUSION DE LA CELLULE DE LEUCEMIE AIGUE HUMAINE AINSI TRAITEE AVEC LA CELLULE T HUMAINE AINSI ACTIVEE, EN PRESENCE D'UN ACCELERATEUR DE FUSION; ET D.ON ISOLE L'HYBRIDOME AINSI PRODUIT.
Patent FR-2535954-A1 (FR)
Title: Article, particularly a wallet, for receiving and transporting banknotes or the like.
Inventor: DOUEK MAURICE
IPC: A45C1/06
Filed: 1982-11-16
Abstract: The article, comprising at least one pocket 10 which is open over the entire length of one side for the insertion and removal of the banknotes, is characterised in that it comprises a flap or thin tongue 20 fastened flat via an edge onto the wall 13 of the pocket 10 along a part of the edge 16 of the said opening, the flap 20 extending inside the pocket from its edge fastened to the wall of the latter and over only a part of the length of the pocket, the said wall 13, the flap 20 and its method of fastening 16, 17 being arranged so that the flap may be moved away from the said wall, around its fastening edge, for inserting banknotes, and then be placed back in the pocket in an active position, over the banknotes in order to hold the portion thereof which is close to the opening.
Patent FR-2536644-A1 (FR)
Title: Item of furniture for storing hi-fi system equipment.
IPC: A47B46/00
Filed: 1982-11-25
Abstract: The present invention relates to an item of furniture designed for storing hi-fi system equipment, comprising a movable rectangular platform 6 carrying the speakers (baffles) and capable of being either totally retracted inside the item of furniture or extended, in an advanced position. This item of furniture is characterised in that the platform 6 carries, on the left and right portions of its upper face, two deck parts 11, 12 pivoting respectively about vertical axes 14, 15 and each supporting a speaker (baffle) 13, and means 16 for causing each deck part 11, 12 to pivot automatically about its axis 14, 15, towards the outside of the platform 6 and so as to overhang relative to the left or right minor side of the latter, when the platform 6 is pulled forwards outside the item of furniture and, on the other hand, for bringing each deck part 11, 12 back over the platform 6 when the latter is pushed inside the item of furniture.
Patent FR-2518437-A1 (FR)
Title: Dispositif et procede pour former de fines gouttelettes de metal liquide
Inventor: DIETZ PETER WILLIAM
IPC: B22F9/10
Filed: 1982-12-14
Abstract: DISPOSITIF ET PROCEDE PERMETTANT D'OBTENIR DE FINES GOUTTELETTES DE METAL LIQUIDE DE TAILLE PRATIQUEMENT UNIFORME LE DISPOSITIF COMPORTE UNE CHAMBRE 18 OU REGNE UNE PRESSION DIFFERENTE DE LA PRESSION ATMOSPHERIQUE AMBIANTE, UN ELEMENT 2 MONTE EN ROTATION A L'INTERIEUR DE LA CHAMBRE 18 ET COMPORTANT UNE SURFACE 3 DESTINEE A RECEVOIR LE METAL LIQUIDE 12, UN MOYEN 14 POUR FOURNIR LE METAL LIQUIDE A LA SURFACE DE L'ELEMENT 2, UN MOYEN 5 POUR FORMER UN CHAMP ELECTRIQUE AU MOINS AU BORD 4 DE LA SURFACE 3, ET UN MOYEN 10 POUR FAIRE TOURNER L'ELEMENT 2 A UNE VITESSE ANGULAIRE PREDETERMINEE. APPLICATION AUX METAUX LIQUIDES.
Patent WO-8401777-A1 (WO)
Inventor: JACQUINET JEAN-CLAUDE
IPC: A61K31/715
Filed: 1983-10-27
Abstract: Procédé de synthèse organique d'oligosaccharides constituant ou correspondant à des fragments de mucopolysaccharides acides dans lequel on fait réagir deux composés constitués ou terminés respectivement par des motifs de structure galactosamine et des motifs de structure acide uronique. Ces motifs étant substitués spécifiquement. Ce procédé conduit à des oligosaccharides utilisables notamment en thérapeutique.
Patent FR-2542321-A1 (FR)
Inventor: BACIU ANTOINE
IPC: F21V7/22
Filed: 1983-03-07
Abstract: The invention relates to a headlamp reflector for an automobile vehicle manufactured by injection molding according to the coinjection process using poly(alkylene terephthalate) having a viscosity number (DIN 16,779) of between 60 and 180 cm3/g. It is characterized by the fact that the core contains some 15 to 75% by weight of hematite, at least 75% of the hematite having a particle size less than 70  mu m. Good mechanical strength and good behavior in respect of temperature.
Patent FR-2543396-A1 (FR)
Title: Electrical case intended to be embedded in a prefabricated structural element
Inventor: FLOURET JOEL
IPC: H02G3/12
Filed: 1983-03-24
Abstract: This case comprises a plastic body 4 and a removable lid. It is intended to be embedded in a panel 1, the lid being flush with the surface of the demoulded panel 1 and the body 4 of the case 3 being endowed with at least one orifice 4a for the passage of conductors enclosed in a sheath 2 which is also embedded in the panel 1; the case houses, after demoulding the panel 1 and removing the lid, an electrical distribution member 23 fixed in the case 3 by means of a removable element 19 which includes at least two fixing lugs 22. The element 19 consists of a U-shaped clip, the two arms 21 of which carry, at their ends, the said lugs 22; it is inserted into the body 4 by elasticity and is held therein between the bottom 7 of the said body 4 and a rim 9 projecting towards the inside of the latter. This arrangement makes it easier to mount the electrical installation.
Patent FR-2543041-A1 (FR)
Title: Method and installation for tightening a connection of the screw type, with control of the mechanical tensile force applied to the screw
IPC: B25B23/14
Filed: 1983-03-25
Abstract: a.Method and installation for tightening a connection of the screw type, with control of the mechanical tensile force applied to the screw. b. Installation of the method characterised in that it comprises a tool formed by a pneumatic hydraulic or electric motor 50 driving a spindle 51 fitted with a socket 52, the motor being equipped with a torque sensor 53 and an angle sensor 54 in order to control the circuit 55 providing the stop signal to a stop control device 56 such as a rapid valve or relay. c. The invention applies to tightening screws or the like with precise extension regardless of the state of the screw without risking exceeding its elastic limit.
Patent FR-2525139-A1 (FR)
Title: Procede et dispositif de formage de pieces en forme de plaque
IPC: B24C3/00
Filed: 1983-04-14
Abstract: PROCEDE ET DISPOSITIF DE FORMAGE DE PIECES EN FORME DE PLAQUE. PROCEDE ET DISPOSITIF DE FORMAGE PAR FRAPPE DE PIECES EN FORME DE PLAQUE DANS LESQUELS DES BILLES 13 PROJETEES AGISSENT SUR LA COUCHE SUPERFICIELLE DU MATERIAU. UNE COUCHE DE LIQUIDE 51 EST FORMEE ENTRE LES BILLES 13 ET LA PIECE POUR REDUIRE LE FROTTEMENT ET LA FORMATION DE CHALEUR. LE LIQUIDE SERT, OUTRE A FORMER LA COUCHE DE LIQUIDE, A ACCELERER LES BILLES.
Patent FR-2546690-A1 (FR)
Title: Pulse-control circuit for power transistor
IPC: H03K17/0812
Filed: 1983-05-25
Abstract: The present invention relates to a monolithic circuit for controlling a power transistor which can be controlled in a pulsed manner on turn-on and turn-off. The power transistor T3 is supplied by a PNP transistor T1 itself connected to an NPN transistor T2 receiving on its base the pulsed signals G. According to the invention, the base of the transistor T2 is connected to the collector of the transistor T1 by way of a screen f. In practice, the base of the transistor T2 is arranged so as to be able to gather the carriers injected by the emitter of the transistor T1 when the latter operates near saturation. This base is no longer supplied when transistor T1 desaturates, thus engendering the automatic cutting off of transistor T3.
Patent FR-2547578-A1 (FR)
Title: 2-(4-Biphenylyl)propionic acids, new process of preparation and use as synthetic intermediates
Inventor: COUSSE HENRI
IPC: C07C51/09
Filed: 1983-06-20
Abstract: The invention relates to an industrial process for producing 2-(4-biphenylyl)propionic acids of general formula I: in which X represents a hydrogen atom or a halogen, characterised in that a biphenyl is acylated with alpha -bromopropionyl bromide in solution in an organic solvent in the presence of a catalyst of Lewis acid type.
Patent FR-2551776-A1 (FR)
Title: Device for orienting and introducing a piece of cloth under the pressure foot of a sewing machine
Inventor: RAISIN JEAN-PIERRE A
IPC: D05B35/10
Filed: 1983-09-14
Abstract: This device comprises two application shoes 3, 4 accompanied by a moving detector 5 which detects the border 14 to be sewn, and means for driving the said shoes: the detector automatically seeks out the border 14 to be sewn by rotating about the point 12 of introduction of the piece 9; the shoes 3, 4 are applied to the piece 9 by two actuators when the border is detected; the shoes 3, 4 are then rotated through the same angle as each other but in opposite directions, and consequently they orient the piece in the predetermined direction required for sewing; under the action of an actuator 7, one of the shoes 4 passes the now oriented piece 9 under the pressure foot 13 of the sewing machine 10.
Patent FR-2551792-A1 (FR)
Title: Procede d'etanchement des profiles en caisson pour couvertures de piscine, et profile ainsi rendu etanche
IPC: E04H4/08
Filed: 1983-09-14
Abstract: DANS CE PROFILE POUR COUVERTURE DE PISCINE, LES ALVEOLES 4 SONT MUNIS D'UN TAMPON D'ETANCHEITE 7, 9 REALISE EN MOUSSE D'UN MATERIAU SYNTHETIQUE A CELLULES FERMEES, CONFORME A DES DIMENSIONS SUPERIEURES A CELLES DE LA SECTION A BOUCHER ET FIXE PAR COLLAGE AVEC UNE COLLE FLUIDE QUI SERT DE LUBRIFIANT AU MOMENT DE L'INTRODUCTION DU TAMPON.