baber/WOPTO huggingface dataset:
Patent FR-2535638-A1 (FR)
Title: Procede et installation de soudage de grilles pour assemblage de combustible nucleaire
Inventor: VERE BERNARD
IPC: B23K9/12
Filed: 1982-11-09
Abstract: POUR SOUDER UNE GRILLE CONSTITUEE PAR DES JEUX DE PLAQUETTES DISPOSEES ORTHOGONALEMENT ET DONT LES PARTIES TERMINALES SONT SOLIDARISEES D'UNE CEINTURE, ON LA PLACE DANS UN CADRE 19 DE MISE EN FORME ET DE MAINTIEN MECANIQUE PERMETTANT D'ACCEDER AU POINT A SOUDER. PUIS ON PLACE LE CADRE CONTENANT LA GRILLE SUR UN DISPOSITIF DE RETOURNEMENT 35 APPARTENANT A UN CARROUSEL, EN UN PREMIER EMPLACEMENT DE SOUDAGE ET ON Y EFFECTUE LE SOUDAGE SUR AU MOINS UNE FACE DE LA GRILLE A L'AIDE D'UN ORGANE DE SOUDAGE DEPLACABLE SELON DEUX DIRECTIONS PERPENDICULAIRES PERMETTANT DE L'AMENER AU DROIT DE CHACUN DES POINTS DE SOUDAGE SUR LA FACE; ET ON AMENE LE CADRE EN UN SECOND EMPLACEMENT DE SOUDAGE OU L'ON SOUDE LES PLAQUETTES A LA CEINTURE A L'AIDE D'UN SECOND ORGANE DE SOUDAGE DEPLACABLE SELON UNE SEULE DIRECTION, APRES BASCULEMENT DE 90 DU CADRE 19 A L'AIDE DU DISPOSITIF DE RETOURNEMENT 35; ET ON REPETE EVENTUELLEMENT LES OPERATIONS JUSQU'A EXECUTION DE L'ENSEMBLE DES SOUDAGES.
Patent FR-2535745-A1 (FR)
Title: Pince-trame pour machine a tisser sans navette a insertion de trame pneumatique
Inventor: GRANDVALLET GILLES
IPC: D03D49/50
Filed: 1982-11-08
Abstract: PINCE-TRAME POUR MACHINE A TISSER SANS NAVETTE A INSERTION DE TRAME PNEUMATIQUE. CE PINCE-TRAME 2, PLACE A L'ENTREE DE LA BUSE DE LANCEMENT, COMPREND UNE COUPELLE FIXE 11 SITUEE EN REGARD D'UNE COUPELLE MOBILE 19 SOLIDAIRE D'UNE TIGE 18. LE CORPS 8, 15, 26 DU PINCE-TRAME POSSEDE UN PASSAGE 17 TRAVERSE LIBREMENT PAR LA TIGE 18 QUI EST PORTEE PAR DEUX MEMBRANES DEFORMABLES 20, 25. UNE MEMBRANE 25 DELIMITE, AVEC UNE PAROI 30 DU CORPS, UNE CHAMBRE RELIEE A UNE ARRIVEE D'AIR COMPRIME 34. L'AUTRE MEMBRANE 20 DELIMITE, AVEC UNE PAROI 24 DU CORPS, UNE CHAMBRE 23 DE PLUS PETITE SECTION QUE LA PREMIERE ET EN COMMUNICATION AVEC CELLE-CI PAR LE PASSAGE 17. UN RESSORT DE RAPPEL 22 EST MONTE AUTOUR DE LA TIGE MOBILE 18, A L'INTERIEUR DE LA CHAMBRE 23 DE PLUS PETITE SECTION.
Patent FR-2517788-A1 (FR)
Title: Joints et procede de leur preparation
Inventor: MITCHELL BARCLAY
IPC: F16J15/10
Filed: 1982-12-07
Abstract: JOINTS ET PROCEDE DE LEUR PREPARATION; ON IMPREGNE UN JOINT A BASE DE PAPIER D'UNE RESINE DE SILICONE POUR AMELIORER SA RESISTANCE AU MELANGE D'EAU ET D'ANTIGEL; LE JOINT EST FAIT D'UN PAPIER ESSENTIELLEMENT DEPOURVU DE MATIERE CONTENANT UNE AMINE, TELLE QU'UN AGENT MOUILLANT, ET LIE AVEC UN LIANT CAOUTCHOUTEUX DEPOURVU DE SOUFRE OU DE DONNEUR DE SOUFRE.
Patent FR-2518822-A1 (FR)
Title: Appareil et procede de guidage d'ondes pour des signaux a double frequence et a double polarisation, ainsi qu'une jonction de polarisation, un filtre plan et un orifice pour un tel appareil
Inventor: JANKY JAMES MARTIN
IPC: H01P5/16
Filed: 1982-12-16
Abstract: APPAREIL ET PROCEDE DE GUIDAGE D'ONDES POUR DES SIGNAUX A DOUBLE FREQUENCE ET A DOUBLE POLARISATION AINSI QU'UNE JONCTION DE POLARISATION, UN FILTRE PLAN ET UN ORIFICE POUR UN TEL APPAREIL. L'APPAREIL GUIDE D'ONDES SELON LA PRESENTE INVENTION EST DESTINE A GUIDER UNE PREMIERE PAIRE DE FREQUENCES D'EMISSION ET DE RECEPTION POLARISEES HORIZONTALEMENT INDEPENDAMMENT D'UNE SECONDE PAIRE DE FREQUENCES D'EMISSION ET DE RECEPTION POLARISEES VERTICALEMENT ET DANS UNE DISPOSITION ELECTRIQUE PARALLELE A CETTE SECONDE PAIRE ENTRE UN CORNET D'ALIMENTATION ET LES DISPOSITIFS EMETTEUR OU RECEPTEUR CORRESPONDANTS. CE GUIDE D'ONDES COMPREND UNE JONCTION DE POLARISATION 43, UN PREMIER MOYEN DE SEPARATION DE FREQUENCE 57, UN SECOND MOYEN DE SEPARATION DE FREQUENCE 59 ET UN MOYEN D'ACCOUPLEMENT MONTE ENTRE LA JONCTION DE POLARISATION ET LE SECOND MOYEN DE SEPARATION DE FREQUENCE POUR GUIDER LES FREQUENCES D'EMISSION ET DE RECEPTION POLARISEES HORIZONTALEMENT ENTRE LE SECOND MOYEN DE SEPARATION DE FREQUENCE ET LA JONCTION DE POLARISATION.
Patent FR-2519039-A1 (FR)
Title: Procede et dispositif pour traiter des points isoles de materiaux defilants, en particulier pour marquer les defauts de matieres textiles en vue de leur elimination a la coupe
Inventor: SJOBERG PER
IPC: D06H1/04
Filed: 1982-12-30
Abstract: ON MARQUE CHAQUE DEFAUT 2 D'UNE BANDE DE TISSU 1 PAR UNE PLAQUETTE 10 DE MARQUAGE CONTENANT UN ELEMENT METALLIQUE ET PREPAREE POUR RESISTER AU FINISSAGE OU AUTRE TRAITEMENT CONSECUTIF DE LA BANDE 1, QUE L'ON ATTACHE A LA BANDE 1 DE MANIERE QUE L'ELEMENT METALLIQUE RECOUVRE LE DEFAUT 2. LES PLAQUETTES DE MARQUAGE 10 PEUVENT ETRE FIXEES A LA BANDE 1 PAR UN PISTOLET 15 A ULTRASONS PAR EXEMPLE. UN DETECTEUR 20 PREVU A LA SUITE DES POSTES DE FINISSAGE (ZONE B) EST SENSIBLE AUX ELEMENTS METALLIQUES CONTENUS DANS LES PLAQUETTE 10 ET ACTIONNE UN APPAREIL DE COUPE 23 POUR ELIMINER DE LA BANDE 1 LES RUBANS TRANSVERSAUX CONTENANT LES ENDROITS DEFECTUEUX. L'INVENTION EST APPLICABLE NOTAMMENT A L'ELIMINATION DE DEFAUTS DE MATIERES TEXTILES TUBULAIRES.
Patent FR-2521476-A1 (FR)
Title: Rapid coupling for grinding discs of stone polishing machine - uses retraction sprung headed studs engaging keyholes, with lever to counteract spring
Inventor: TERZAGO FRANCESCO
IPC: B24D7/16
Filed: 1983-01-27
Abstract: The rapid coupling system is used to mount satellite grinding discs (2) on each of the several drive shafts (4) of a stone polishing machine. It uses a screw-on mandrel (1) to house a grinder base plate (31), secured by retraction sprung (13) headed studs (14), engaging circumferential keyholes sited over cavities (32). The studs may pass through axial holes in the mandrel to screw (16) into a ring (10). Springs (13) sited between the ring and the mandrel constrain the studs to pull the grinder onto the mandrel. A special forked hand lever with fulcrum lugs engaging a groove may counteract the springs during mounting and demounting, serving to move the ring towards the mandrel.
Patent FR-2522539-A1 (FR)
Title: Procede pour la protection d'une installation de revetement par poudre contre le risque d'explosion
Inventor: HOLL WALTER
IPC: G01R31/12
Filed: 1983-01-31
Abstract: A.PROCEDE POUR LA PROTECTION D'UNE INSTALLATION DE REVETEMENT PAR POUDRE CONTRE LE RISQUE D'EXPLOSION. B.PROCEDE CARACTERISE EN CE QUE LA NAISSANCE D'UN ARC ELECTRIQUE D'UNE ENERGIE INADMISSIBLEMENT ELEVEE ENTRE, D'UNE PART, LA PIECE A REVETIR 18 ETOU SON DISPOSITIF DE SUPPORT 19 ET D'AUTRE PART, UN RACCORDEMENT A LA MASSE 22 EST INTERROMPUE PAR L'APPLICATION D'UNE HAUTE TENSION DE CONTROLE 24 ENTRE LA PIECE A REVETIR ET LA MASSE 25, DES ISOLATIONS EVENTUELLEMENT PRE-EXISTANTES ETANT ALORS ROMPUES PAR UNE DECHARGE ELECTRIQUE DISRUPTIVE D'ENERGIE PLUS REDUITE, OU BIEN DANS L'AUTRE CAS, L'INSTALLATION DE REVETEMENT PAR POUDRE 10 ETANT MISE HORS CIRCUIT LORS DU FRANCHISSEMENT D'UN COURANT DE CONTROLE MINIMUM PREDETERMINE 28 DU A UNE RESISTANCE DE CONTACT TROP ELEVEE. C.L'INVENTION S'APPLIQUE NOTAMMENT AUX INSTALLATIONS DE LAQUAGE DE PIECES METALLIQUES.
Patent FR-2544685-A1 (FR)
Title: Transparent bottom device for boats and other floating craft
IPC: B63C11/48
Filed: 1983-04-21
Abstract: The device consists of a combination of a circumferential circling and anchoring element 5, 6, with a protective spacing projection 3, 4 circling and immobilising the bearing sheet of fluid. It is intended to ensure junction impermeability, visibility, observation of the bottom or of underwater sites.
Patent FR-2547292-A1 (FR)
Title: Arm supports for tilting elevating trailers
IPC: B60P1/34
Filed: 1983-06-10
Abstract: The invention relates to an arm support device for a tilting elevating trailer, comprising a rigid plate 1a at the upper part of which rests the arm 4 after lowering the platform-chassis 34, the said arm 4 being immobilised by means of a pin 5 so that, by the action of the jack 36, the latter causes the platform-chassis 34 to tilt, each arm support 1 being placed and held on a side member 12 of the trailer.
Patent FR-2532013-A1 (FR)
Title: Wire mesh type lattice unit fastener
Inventor: HERRING ANDREW PHILIP GEORGE
IPC: F16B13/04
Filed: 1983-07-26
Abstract: The plastics unit is used for securing an element, (76) with a frame (78) enclosing a row of mesh interstices (80). It is monolithic, with a generally planar body (42), and a series of lugs (44) extending vertically from one side of this. Lugs have one or more barbed hooks (46) inclined rearwards against the body. The hooks are elastically deformable, so as to pass through the interstices of the element, but then prevent withdrawal of the frame of the element. They may be arranged in a straight line, with the body extending on both sides of this. Four or eight may be provided.
Patent FR-2531700-A1 (FR)
Title: Crystal pptn. glazing compsn.
Inventor: FISCHER ROBERT
IPC: C03C8/20
Filed: 1983-07-26
Abstract: Compsns. for glazing ceramic substrates consist, by wt., of 60-90% frit, 5-20% clay minerals as glaze aggregates and 2-10% pref. pyrogenic TiO2, 2-4% BaO, 5-10% Li2O, 2-6% Na2O,  0.5-10% CaO and opt. up to 9% K2O. K2I addn leads to specific pptn. effects, e.g. using K-contg. frits it is possible to obtain a white fired claze contg. round, silvery shiny crystals having dia. 2-5mm. Clearly distinguishable crystals are formed and specific glazing effects can be obtd. on ceramics, e.g. wall-plates and flagstones.
Patent FR-2533372-A1 (FR)
Title: Reseau d'electrodes pour accumulateurs, notamment pour accumulateurs au plomb
Inventor: PISKE GUNTER
IPC: H01M4/72
Filed: 1983-09-15
Abstract: L'INVENTION CONCERNE UN RESEAU D'ELECTRODES POUR ACCUMULATEURS, NOTAMMENT POUR ACCUMULATEURS AU PLOMB. LEDIT RESEAU D'ELECTRODES 1 PRESENTE UNE STRUCTURE EN NID D'ABEILLES COMPRENANT PLUSIEURS ALVEOLES REGULIERS 7 SENSIBLEMENT IDENTIQUES, S'ETENDANT LONGITUDINALEMENT, ORIENTES, A L'OBLIQUE ET DE FORME CARREE OU POLYGONALE. LES AXES LONGITUDINAUX 10, 11, 12 ET LES POINTES 46 DE CES ALVEOLES SONT SENSIBLEMENT ORIENTES VERS UNE BORNE CONDUCTRICE DE COURANT 4 OU SONT AU MOINS INCLINES PAR RAPPORT A CETTE BORNE. LES AXES LONGITUDINAUX DESDITS ALVEOLES SONT ORIENTES VERS DES CONDUCTEURS SECONDAIRES RACCORDES A UN CONDUCTEUR PRINCIPAL DE COURANT. APPLICATION AUX ACCUMULATEURS, NOTAMMENT AUX ACCUMULATEURS AU PLOMB.
Patent FR-2533752-A1 (FR)
Title: Transistor for semiconductor memory flip=flop
Inventor: HORNINGER KARLHEINRICH
IPC: H01L29/78
Filed: 1983-09-19
Abstract: The semiconductor substrate (1) which can be of p-type silicon has its surface covered with a silicon oxide layer divided into thick and thin zones, and incorporating contact openings (7). Below the oxide layer are n-type source and drain regions (5,6). Above the oxide layer is a gate zone (8) formed by portions of different conductivity type polycrystalline silicon. This has a central zone (9c) of the same conductivity type as the substrate between two parallel zones (9a,9b) of the opposite conductivity type. The gate zone connects a short extension of the drain region with an extension of the source region, the latter adjacent to a contact opening. The transistor has a large channel resistance and can be used to load the memory circuit.
Patent FR-2541051-A1 (FR)
Title: Control appts. for heating installation with cabled units
Inventor: VIESSMANN HANS
IPC: F24H9/20
Filed: 1983-09-28
Abstract: Control and regulating units (2) are plugged (14) into a panel (11) carrying wire connections to female sockets (1) which are mounted in the lower part of the housing (3), and accessible through an opening (4) with a cover (4'). The underside (5) of the housing has openings (6) for external cables (13), and the lower edge (12) of the access opening (4) is offset slightly towards the rear w.r.t. the top edge (12') to facilitate introduction of the cable end (13'). Each cable is provided with a stress-relieving eyelet in the form of a ring with a fixing screw and a lateral opening. The appts. eliminates conventional cable sections with female sockets at their ends, and the time and labour of their assembly and of threading external cables through individual openings.
Patent FR-2535148-A1 (FR)
Title: Machine pour travailler le sol comportant une fixation amelioree des dents
Inventor: LELY CORNELIS VAN DER
IPC: A01B33/14
Filed: 1983-10-27
Abstract: MACHINE POUR TRAVAILLER LE SOL DONT LE CHASSIS 1 COMPORTE UNE PLURALITE D'ORGANES DE TRAVAIL 3 ENTRAINES EN ROTATION AUTOUR D'AXES DIRIGES VERS LE HAUT, LESDITS ORGANES ETANT CONSTITUES PAR UN SUPPORT DE DENTS 4 SUR LEQUEL EST MONTEE AU MOINS UNE DENT 10. LE SUPPORT DE DENTS 4 COMPORTE DEUX POINTS DE FIXATION POUR CHAQUE DENT 10 ET ENTRE LES POINTS DE FIXATION EST DISPOSEE UNE NERVURE 12 SENSIBLEMENT VERTICALE.
Patent FR-2537386-A1 (FR)
Title: Hydraulic transmission seizure prevention system
Inventor: BECK RICHARD JR
IPC: A01B61/00
Filed: 1983-11-02
Abstract: The control system prevents seizure of a driven unit, due to overload, in a transmission system incorporating a hydraulic motor and a variable-output pump. A servo unit with cylinder (56) determines the setting of the hydraulic pump (15), while a detector is provided for the pressure supplied by the latter to the motor (16). When the latter exceeds a predetermined value, a unit (65) increases the speed at which the pump is driven. A second unit (80) can also be provided, cutting off the drive (12) when a second and higher pressure is reached.
Patent FR-2555773-A1 (FR)
Title: Tramway without a rail on the ground
IPC: B62D1/26
Filed: 1983-11-24
Abstract: The invention relates to a vehicle which is self-guided by a system which picks up from an overhead cable the data fixing the direction which the vehicle should follow and transforms them into orders applicable to the steerable wheels. The data detector-convertor system may, for example, use a shaft 1 carrying a pulley 2 which rolls against the cable 3 and orients itself by driving the shaft which acts on a rack gear 10 controlling a Jeantaud quadrilateral which steers the wheels parallel to the pulley, but it is helped in this action by giving instructions to the distributor of an assistance device. The assembly is completed by a servo brake which locks the vehicle in the event of a breakdown in the steering detector-convertor system. The servo brake may be controlled by a device like the dead man's handle in locomotives.
Patent FR-2555686-A1 (FR)
Title: Frein multidisque, comportant un premier disque et un second disque coulissant muni d'un systeme de guidage
Inventor: THIOUX ALAIN
IPC: F16D55/40
Filed: 1983-11-30
Abstract: FREIN MULTIDISQUE, DU TYPE COMPRENANT AU MOINS UN PREMIER DISQUE ROTATIF SOLIDAIRE DE LA ROUE DU VEHICULE ET UN SECOND DISQUE ROTATIF MONTE COULISSANT SUR UN ELEMENT DE SUPPORT LUI-MEME SOLIDAIRE DE LA ROUE, L'ENTRAINEMENT EN ROTATION DU SECOND DISQUE PAR LEDIT ELEMENT DE SUPPORT S'EFFECTUANT PAR L'INTERMEDIAIRE DE CANNELURES COMPLEMENTAIRES A PROFIL EN DENTS D'ENGRENAGE. POUR COMBATTRE LES EFFETS NEFASTES DU COUPLE DE BASCULEMENT EXERCE SUR LE DISQUE COULISSANT 2 PAR LA POUSSEE DU VERIN D'ACTIONNEMENT 12, L'INVENTION PREVOIT DE MUNIR CE DISQUE DE PROJECTIONS AXIALES DE GUIDAGE 14 S'ENGAGEANT DANS DES OUVERTURES DE FORME CORRESPONDANTE 15 MENAGEES DANS L'AUTRE DISQUE 1. APPLICATION AU FREINAGE DES VEHICULES DE TOURISME HAUT DE GAMME.
Patent FR-2562341-A1 (FR)
Title: Laser with ultra-short pulses
Inventor: DURAN JACQUES
IPC: H01S3/08
Filed: 1984-03-29
Abstract: The laser LP includes a Nd-YAG matrix 3 placed between a divergent mirror 1 and an exit mirror 2. This laser is advantageously provided with two acousto-optical devices. One 5 produces an overvoltage switching, whereas the other 6 carries out a mode locking. Two slightly different optical paths are created inside the cavity through the fact that the exit mirror 2 is a Fabry-Pérot resonator with two parallel faces 21 and 23. This enables the laser to operate in dual locked mode with a considerable reduction in the duration of the elementary pulses and conservation of peak power.
Patent FR-2562599-A1 (FR)
Title: Two-way opening device for doors, leaves or coverings for any building or object requiring access from two opposite sides
IPC: E05D15/50
Filed: 1984-04-06
Abstract: The invention relates to a device permitting the opening of a building door both to the left and to the right. It is characterised by the presence of sets of components 3 and 4 each attached by articulations 5, 6, 7, 8, on the one hand to the building and, on the other hand, to the door. These components each include a reinforcement stud 9 which engages in a retention hole. This invention, after fitting the components 3 and 4 for each particular case, as regards their shape and their profile, will be able to be used in the most varied fields.
Patent FR-2545330-A1 (FR)
Title: Pate de boulangerie
Inventor: KAWAI MASANOBU
IPC: A21D8/04
Filed: 1984-04-27
Abstract: L'INVENTION CONCERNE UNE PATE QUI RENFERME UNE LEVURE DU GENRE SACCHAROMYCES RESISTANT AUX ANTIBIOTIQUES DE TYPE POLYENE. CES LEVURES S'AVERENT PARTICULIEREMENT UTILES DANS LA PREPARATION DES PATES QUI SONT DESSECHEES PAR CONGELATION, PUIS DECONGELEES POUR L'UTILISATION. LES PATES SUIVANT L'INVENTION, LORSQU'ON LES UTILISE APRES DESSICATION PAR CONGELATION ET DECONGELATION, PROCURENT DES PRODUITS COMESTIBLES D'UNE QUALITE SUPERIEURE A CELLE DES PRODUITS JUSQU'ICI CONNUS.
Patent FR-2564974-A1 (FR)
Title: Dispositif mesurant en continu la viscosite d'un fluide
IPC: G01N11/14
Filed: 1984-05-23
Abstract: DISPOSITIF MESURANT EN CONTINU LA VISCOSITE D'UN FLUIDE, NOTAMMENT D'UN COMBUSTIBLE LIQUIDE. IL COMPREND UNE CHAMBRE DE MESURE 4 TRAVERSEE PAR LE FLUIDE, DANS LAQUELLE SE TROUVE UN DISPOSITIF A DOUBLE ENTREFER, COMPORTANT UN NOYAU CYLINDRIQUE PRIMAIRE 12 ENTRAINE PAR UNE TURBINE 13 ET UN NOYAU CYLINDRIQUE SECONDAIRE 14 ENTRAINE EN SENS INVERSE PAR UNE TURBINE 15. DEUX CAPTEURS 16 ET 17 PERMETTENT DE MESURER LES VITESSES DE ROTATION DES NOYAUX 12 ET 14. LES INFORMATIONS FOURNIES PAR LES CAPTEURS SONT TRANSMISES A UN CALCULATEUR ELECTRONIQUE. L'INVENTION EST UTILISEE POUR REGULER LES ASSERVISSEMENTS D'UNE POMPE D'INJECTION DE MOTEUR DIESEL OU DE BRULEUR DE CHAUDIERE
Patent FR-2546956-A1 (FR)
Title: Actuating apparatus for sliding doors
Inventor: PUJOL OSCAR
IPC: E05F15/14
Filed: 1984-05-29
Abstract: The invention relates to an actuating apparatus for sliding doors. It comprises a propulsive device consisting of an electric motor having preferably thermally protected coils and having its axial shaft coupled to an endless screw 3 supported by a pair of roller bearings which allow its axial displacement limited by a coaxial helical spring in contact with the end of the shaft and pushed by means of the position of a nut adjustable in the threaded head of the said shaft and fixable by means of a radial screw also cooperating in fixing the position of the shaft and of the endless screw 3, a second helical spring of larger diameter, likewise arranged coaxially relative to the shaft and tightened by means of a threaded ring nut in a cylindrical projection which branches off from the apparatus housing 1 and which serves as a receptacle for the push device and is completed by a protective cover.
Patent FR-2571334-A1 (FR)
Title: Method and device for installing on a rod objects mounted slidably on the latter
IPC: B65B15/00
Filed: 1984-10-05
Abstract: The subject of the invention is a device for positioning objects 1 on a rod 6, on which they are slidably mounted. This device comprises a tube 7 one end 8 of which is hollow and is capable of interacting by interlocking with the free end of the said rod 6, the said tube 7 acting as an auxiliary support for a batch of the said objects 1, which it is thus sufficient to push back in the direction of the said rod, after positioning the tube on the free end of this rod, so as to bring the said objects into position thereon by sliding.
Patent FR-2572210-A1 (FR)
Title: Improvements to liquid crystal optical cells using a controlled birefringence effect
Inventor: DURAND GEORGES
IPC: G02F1/139
Filed: 1984-10-23
Abstract: The present invention relates to a liquid crystal optoelectronic method according to which a material 13 which comprises molecules endowed with nematic properties is arranged between two parallel transparent plates 11, 12. Moreover, according to the invention, the said material is given a hybrid structure defining a nematic director n curved in a plane perpendicular to the plates, such that the nematic director has a planar orientation on one of the plates and a homeotropic orientation on the other plate, the material is weakly anchored onto one at least of the plates, so that the extrapolation length ''L'', defined by the ratio K/w of the elastic constant of curvature -K- over the energy of curvature -w-, is of the order of magnitude of the thickness of the material contained between the plates or greater than this thickness, and then an electric field E, of controlled value and oriented normal to the plates 11, 12, is applied to the material 13.
Patent FR-2557192-A1 (FR)
Title: Casing for blind
IPC: E04C3/02
Filed: 1984-10-29
Abstract: The invention relates to a self-supporting casing for a blind, for a window or a door, comprising a thermal insulation and a prefabricated reinforced concrete lintel. The lintel consists of a strip of reinforced concrete 13 which extends longitudinally above the compartment of the blind and which comprises reinforcement trelliswork and/or stirrup pieces 10 which project upwards, in order to provide the link with a concrete slab which is poured in situ. The outer wall 7 of the casing is extended upwards beyond the reinforced concrete strip 13 as far as a level corresponding to the height of the slab. The reinforced concrete strip descends laterally at least as far as the lower face of the casing. The casing is arranged in order to be integrated into a façade of a building.
Patent FR-2575909-A1 (FR)
Title: Applicator brush for applying a liquid, element of such a brush and liquid-application installation comprising such a brush
Inventor: DUPUIS JEAN
IPC: A46B7/04
Filed: 1985-01-14
Abstract: The brush 1 comprises a handle 2 equipped, at one end, with hairs or bristles 3. The handle 2 comprises an internal pipe 4 for supplying liquid under pressure, particularly paint, this pipe emerging at the base of the bristles 3 which are held by holding means 6 permitting the passage of the liquid towards the bristles 3.
Patent FR-2581056-A1 (FR)
Inventor: FREMEAUX JACQUES
IPC: C23C20/08
Filed: 1985-04-24
Abstract: An improved apparatus for producing a glass ribbon and an improved method for subsequently coating said glass by pyrolytically depositing a metal oxide coating thereupon. The glass is produced in a molten metal float bath having a reducing atmosphere supplied at a slightly positive pressure which is comprised of a mixture of nitrogen and hydrogen gasses. The slightly positive pressure of the reducing atmosphere within at least one lock chamber of the float bath is reduced by venting at least one lock chamber to the outside atmosphere through apertures of reduced size each of which is located in a lateral exterior wall of at least one of said chambers which is separated from the float bath by at least one other of such chambers. Additionally, blower means may be provided to direct an inert antiflame gas, such as nitrogen, toward the base of an airtight curtain at the exit of the outermost lock chamber in order to reduce or totally quench the flames attributable to the burn-off of that portion of the reducing atmosphere which escapes therefrom.