baber/WOPTO huggingface dataset:
Patent FR-2395423-A1 (FR)
Title: Roulement a billes a trois points d'appui
IPC: F16J15/3208
Filed: 1978-06-16
Abstract: L'invention concerne un roulement à billes à trois points d'appui. Il est caractérisé par le fait que la tangente 5 à une première surface annulaire 4 en un point d'appui 6, coupe la droite 12 joignant les deux autres points d'appui 10,11 d'une seconde surface annulaire 8,9 sur l'axe de rotation 7 du roulement. L'invention s'applique à la fabrication des roulements à billes.
Patent FR-2398217-A1 (FR)
IPC: F16D3/60
Filed: 1978-06-29
Abstract: The device contains two one - or multi-part intermediate pieces (83, 84) which can be moved relative to one another and each of which is connected to each drive part (81, 82) via dogs (87, 88), firmly in terms of rotation but with the ability to move transversely to the axes of rotation of the drive parts (81, 82). The dogs (87a, 87c; 88b, 88d) assigned to the first intermediate piece (83) and each connected to the same drive part (81, 82) are arranged offset in the direction of rotation of the drive parts (81, 82) relative to the dogs (88a, 88c; 87b, 87d) assigned to the second intermediate piece (84) and connected to the same drive part (81, 82) in order to achieve compensation of unbalance between the two drive parts (81, 82). Both intermediate pieces (83, 84) expediently have identical masses and, together with the respectively assigned dogs, are arranged symmetrically with respect to the centre in relation to one another. The drive concerned may be the drive of a rail vehicle.
Patent FR-2404215-A1 (FR)
Title: Dispositif de surveillance de la concentration en poussieres d'un aerosol
Inventor: GREEN NORMAN
IPC: G01N21/21
Filed: 1978-07-05
Abstract: Dispositif de surveillance de la concentration de particules de poussière en suspension dans un flux d'air. Dispositif dans lequel le flux d'air chargé de poussières traverse une région située entre deux polariseurs croisés de lumière; de la lumière est dirigée au travers des polariseurs vers un photo-détecteur; en l'absence de particules de poussière, sensiblement aucune lumière n'atteint le photo-détecteur; des particules de poussières dans la région interpolariseur dépolarisent la lumière qui est alors détectée par le photo-détecteur pour procurer une indication de la concentration de particules de poussière. Dispositif applicable à la surveillance de la concentration de particules de poussière de charbon en suspension dans l'air d'une mine de charbon.
Patent FR-2434644-A1 (FR)
Title: Removal of dust suspended in gas or finely divided prod. - by spraying aq. soln. of alkyl-naphthalene over dust
Inventor: SOULAS JEAN
IPC: B01D47/06
Filed: 1978-09-04
Abstract: A process which removes dust suspended in a moving stream of gas or in a finely divided prod. involves spraying an aq. soln. contg. pref. 25-40% wt. of alkylnaphthalene over the dust. The appts. used pref. contains >=2 spray nozzles placed on either side of the current to be treated. The process is used partic. to treat foundry prods. In the treatment of foundry blacks about 1.5 l aq. soln. contg. 35% wt. alkyl-naphthalene are used per tonne of prod. to be treated. The process is efficient, economic, and easily carried out. The treated foundry prods. show improved fluidity and can be easily stored and transported.
Patent FR-2437427-A1 (FR)
Title: Encre serigraphiable, a cuire sous atmosphere non oxydante
Inventor: BAUDRY HUGUES
IPC: C09D11/00
Filed: 1978-09-08
Abstract: LA PRESENTE INVENTION DECRIT UNE ENCRE SERIGRAPHIABLE, QUI CONSISTE EN UNE PARTIE DITE ACTIVE, UN LIANT VITREUX ET UN VEHICULE ORGANIQUE, ET QUI EST DESTINEE A ETRE CUITE SOUS ATMOSPHERE NON OXYDANTE. CETTE COMPOSITION EST REMARQUABLE EN CE QU'ELLE COMPREND EN OUTRE, DISPERSE DANS LE VEHICULE, UN OXYDE REDUCTIBLE D'UN METAL TEL QUE LE CERIUM OU LE PRASEODYME AFIN D'ELIMINER LEDIT VEHICULE. APPLICATION : ENCRE SERIGRAPHIABLE.
Patent FR-2437274-A1 (FR)
Title: Manipulateur mecanique du type maitre-esclave a deplacements homothetiques
Inventor: FRANCOIS DANIEL
IPC: B25J3/00
Filed: 1978-09-29
Abstract: MANIPULATEUR DU TYPE MAITRE-ESCLAVE MECANIQUE PERMETTANT DES DEPLACEMENTS HOMOTHETIQUES. DES MECANISMES PERMETTENT DE DEFINIR UN POINT M SYMETRIQUE PAR RAPPORT A L'AXE D'EPAULE 4A DE L'EXTREMITE DU BRAS MAITRE; DES BIELLES 6B, 2B ASSUJETTIES A RESTER PARALLELES AU BRAS SUPERIEUR ET AU BRAS INFERIEUR ESCLAVE TRANSMETTANT LES ORDRES DE DEPLACEMENT. UN LEVIER SUPPLEMENTAIRE 30 ARTICULE A L'EXTREMITE DE LA BIELLE 2B PERMET D'INTRODUIRE UN DECALAGE ENTRE LE BRAS MAITRE ET LE BRAS ESCLAVE. APPLICATION A LA MANIPULATION A DISTANCE D'OBJETS DANS UN ENVIRONNEMENT HOSTILE.
Patent FR-2439922-A1 (FR)
Title: Filling height limiting valve for underground reservoir - has two float controlled valves shutting off at two levels
IPC: F16K31/18
Filed: 1978-10-24
Abstract: A float and a first valve controlled by the float are arranged to close a first passage connected to the feed line, when the liq. in a reservoir below ground reaches a predetermined level in a device for limiting the filling of the reservoir with an inflammable liq. The filling limiting valve includes a hollow body which has means of connecting it to the feed line, formed by a tubular envelope and a fixed internal tubular core creating an internal chamber, and defining with the tubular envelope an annular section of the first passage. At its downstream end the envelope has in the extension of the wall of the tubular core, a seat for the first valve. This has the form of a cylindrical sliding body moving in the first internal chamber, so as to shut off selectively, radial openings formed in the wall of the tubular core. A second cylindrical valve is arranged so as to slide in the first cylindrical valve so as to selectively close a second passage formed in the first valve; the second valve being controlled by the float so as to shut off the second passage, when the liq. reaches a second predetermined level higher than the first level. It provides an automatic filling limiting device which is fully reliable and gives added security. No external source of power is necessary and the device withstands severe loading. The first and second valves are operated by a single float when the liq. reaches the first level, and then the second level, no manual adjustment being necessary.
Patent FR-2439824-A1 (FR)
IPC: C21D1/18
Filed: 1978-10-25
Abstract: The object of the present invention is an improvement in chromizing methods, constituted by a method of chromizing steels to a depth e greater than 30 microns, usable for steels with a carbon content of at least 0.2%, especially for steels for construction work and steels for tools, characterized by the combination of three successive treatments, the first of these three treatments consisting of an ionic nitriding of a surface layer between 100 and 350 microns thick, this ionic nitriding being realized in an atmosphere constituted by a mixture of nitrogen and hydrogen, at a temperature of between 450 DEG C. and 650 DEG  C., for between 5 and 40 hours, so as to obtain between 1.5% and 2.5% nitrogen in the nitrided layer, the second of these treatments consisting of a chromizing by gaseous method forming chromium carbides, lasting between 5 and 30 hours, and realized at temperatures of between 850 DEG  C. and 1,100 DEG  C., the third of these three treatments being a thermal treatment comprising a quenching in oil of the chromized piece followed by a tempering at a temperature of between 600 DEG  C. and 650 DEG  C., lasting between 30 minutes and 10 hours, depending on the size of the piece treated.
Patent FR-2440261-A1 (FR)
Title: Moulding door panels with reinforced resin covers - to obtain durable composite structures with good dimensional stability
IPC: B29C33/10
Filed: 1978-10-31
Abstract: Panels with reinforced external covers and moulded surface relief detail are moulded by lining a mould with layers of a permeable reinforcing material, e.g. textile matting, and then injecting a fluid resin to flood the reinforcement and provide a moulded surface. The core may be of wood, fibreboard, cellular board, mineral board etc depending on the properties of strength thermal/acoustic insulation, fire resistance etc. req. The reinforcement may be one or more layers of fibrous matting, mesh, wadding, wool, etc., opt. made of glass fibres, pref. covered by a layer of relatively smooth fabric or tissue, e.g. tulle. Alt. the reinforcement could be layers of glass ballotini. The core may be surrounded by a rigid frame. Esp. for mfr. of doors, shutters, etc. having reinforced faces for protection and/or to inhibit warping of the core.
Patent FR-2411974-A1 (FR)
Title: Moteur a combustion interne equipe d'une enveloppe d'insonorisation
IPC: F02B77/13
Filed: 1978-12-15
Abstract: MOTEUR EQUIPE DE TUBES D'ASPIRATION D'AIR COMBURANT QUI ABOUTISSENT AUX CHAMBRES DE COMBUSTION ET EN AMONT DESQUELS EST MONTE UN FILTRE, AINSI QUE D'UNE ENVELOPPE D'INSONORISATION QUI LE COIFFE ET QUI COMPORTE AU MOINS UN ORIFICE D'ENTREE D'AIR. LES TUYAUX D'ASPIRATION7 SONT INTEGRES A L'ENVELOPPE2 ET SONT RACCORDES DIRECTEMENT AUX TUBULURES D'ASPIRATION8 DU MOTEUR1. APPLICATION EN PARTICULIER AUX MOTEURS DES VEHICULES AUTOMOBILES.
Patent FR-2416255-A1 (FR)
Title: Synthesis gas prodn. using nuclear heat - with carbon di:oxide recycle for conversion to carbon mon:oxide
IPC: C10J3/00
Filed: 1979-02-05
Abstract: A plant for synthesis gas prodn. using nuclear heat is claimed. The improvement comprises separating a major proportion of the CO2 from the prod. gas and supplying heat to react this CO2 with carbon to form CO. The plant pref. includes a reactor for steam gasification of coal and/or a reactor for steam reforming of CH4; the sepd. CO2 can be recycled to either or both of these reactors. The amt. of CO2 recycled is pref. controlled so as to maintain the required H2:CO ratio in the product gas. The improvement makes it possible to convert practically all the of feed (coal) into synthesis gas components, giving a product gas with an H2:CO ratio of 1-2.5:1.
Patent FR-2433345-A1 (FR)
Title: Boucle a encliquetage destinee a serrer et tendre une sangle
IPC: B60P7/08
Filed: 1979-02-05
Abstract: Boucle à encliquetage destinée à serrer et tendre une sangle. Elle comprend une ossature en forme de fourche comportant deux bras parallèles et opposés entre lesquels une bobine et des roues à rochet sont montées de façon à tourner. La sangle à tendre passe autour de la bobine. Un levier en forme de fourche comprenant deux bras parallèles et opposés peut tourner sur la bobine et comprend une plaque d'entraînement qui porte contre les dents des roues à rochet de sorte que la bobine tourne lorsque le levier est manoeuvré. Une plaque de verrouillage immobilise les roues à rochet lorsque le levier ne les fait pas tourner. Application aux sangles des ceintures de sécurité de véhicules ou d'avions.
Patent FR-2450263-A1 (FR)
Title: Coupling protein to latex particles having epoxy gps. - for use in immunological analysis esp. pregnancy testing
IPC: C12N11/08
Filed: 1979-02-28
Abstract: Coupling of protein (I) having a reactive gp. which includes a labile H atom., to latex particles of dia. 0.15-1.5 mu comprises reacting at pH 7-9 to form covalent bonds between (I) and free epoxy gps. in the lates. Unfixed (I) is then removed. The latex particles comprise a core, made by (co)polymerising >=1 'hard' monomer, and an outer sheel made by copolymerising >=1 'hard' monomer and an ethylenically unsatd. monomer having free epoxy gps. Both core and shell may include a 'soft' comonomer. Specifically (I) includes NH2 gps., esp. it is human chorionic gonadotropin (HCG), insulin or an enzyme, and the latex is esp. styrene-glycidyl methacrylate. The conjugates are useful in antigen-antibody testing, esp. pregnancy testing. Severe conditions which might denature (I) are avoided; the particles are of uniform size distribution, so are partic. suitable for automated analysis.
Patent FR-2450678-A1 (FR)
Title: Casting rectangular H=section frame burial vault - has detachable base and side forms into which concrete is poured and top form is pressed
Inventor: PRAT LUCIEN GEORGES HENRI
IPC: B28B1/44
Filed: 1979-03-07
Abstract: The mould is used to cast rectangular reinforced concrete frames of which the constituent beams have an 'H' shaped cross section. The mould is in two parts: a base beam (12) together with two side forms (14, 15), and an upper ring beam (16) which forms the top groove. The latter has a trapezoidal section with the major parallel side uppermost and reciprocates an upstand (12A) which runs centrally along the base beam. The side forms are inclined to aid striking. Frame construction entails placing concrete and reinforcement (26) in the base. The upper beam (16) is then pressed into place. The side forms and beam are secured to a lifting bar for removal, and the shaped unit sets while seated on beam. Screws (19) or chocks (21) attach the forms to the beam.
Patent FR-2475668-A1 (FR)
Title: Automatic lock for differential gear train - has braking with cage bore ramps displacing pairs of inter-articulating cams
IPC: F16H48/20
Filed: 1979-06-07
Abstract: The differential gear train uses a braking mechanism to lock the train under no-differential circumstances. The conventional cage is built onto the crown wheel, contg. the opposed output pinion (P) together with bevelled planetary gears (G) on crossing axles (A. Nominal relative rotation of cage and output pinions causes inter- articulated (g',j') pairs of cams (h', h+i, i' etc.) to pivot axially and provide the desired braking effect, the cams being displaced through contact with cage bore ramps.
Patent FR-2430027-A1 (FR)
Title: Lentille de contact semi-sclerale perfectionnee
IPC: G02C7/04
Filed: 1979-06-18
Abstract: L'invention se rapporte à la correction de la vue. Elle concerne une lentille de contact semi-sclérale adaptée à la forme du globe oculaire, caractérisée en ce qu'elle comprend : a. une zone optique 9 qui est l'équivalent sphérique du rayon de courbure k de la cornée au niveau de sa ligne de centre optique et du diamètre y de cette cornée, b. une section conique 10 entre la périphérie de la zone optique et un point Sélectionné au-dessus du limbe, et c. une partie périphérique courbe 11 entre le point sélectionné et le bord de la lentille. Utilisation par les opticiens.
Patent FR-2429809-A1 (FR)
Title: Procede pour prevenir l'exsudation de plastifiants dans des articles faconnes en chlorure de polyvinyle
IPC: C08L75/04
Filed: 1979-06-25
Abstract: L'invention concerne un procédé pour prévenir l'exsudation de plastifiants sur la surface d'un article façonné en résine de polychlorure de vinyle plastitifée, caractérisé en ce qu'il comprend les stades suivants : a. on mélange un élastomère d'uréthane avec la résine de polychlorure de vinyle avant d'utiliser cette dernière pour la fabrication d'un article façonné; b. on fabrique l'artice façonné à partir de la composition résineuse obtenue selon le stade a; c. on soumet l'article façonné obtenu selon le stade b à un traitement avec un plasma d'un gaz de basse température.
Patent FR-2461779-A1 (FR)
Title: Free draining trench fill for drainage or irrigation uses - is mass of e.g. hollow cylindrical elements with maltese cross cross=section each providing capillary passage
IPC: E02B11/00
Filed: 1979-07-17
Abstract: The mass is used for drainage or irrigation purposes, permitting a through flow of water, and being constituted of small elements (1) each defining a capillary or a semi-capillary passage. The elements are pref. placed in a random arrangement, producing diversely volumetric interstices and interrelationships of the capillary passages. Elements may have a hollow cylindrical form, having a bore of 2 to 20mm, and having a length of 2 to 10 dia. Further alternative element forms have a hollow maltese cross shape in section or are spherical with a dia. bore, and the elements may be mixed with free draining sand.
Patent FR-2462667-A1 (FR)
Title: Solar energy heated with e.g. for desalination - has housing mounted lenses focussing on interval body expanding and contracting to maintain optimum heating
IPC: F24S23/00
Filed: 1979-07-25
Abstract: A solar energy heater comprises a body carrying spaced lenses for concentrating direct and reflected sunlight onto a member within the body which is expanded and contracted on heating into exact convergence with the lens focal points. There is a heat-absorbing core within the member and fluid to be heated is passed through the member. The body is pref. supported above a reflecting surface. The body is e.g. a rigid plastics or metal sphere with lenses around its entire surface and a reflecting coating on lenses and/or sphere inner surface. The member is e.g. an expansible sphere, its movement maintaining optimum heating.
Patent FR-2511339-A1 (FR)
Title: Entree d'air reglable, notamment diffuseur bidimensionnel a choc oblique pour turboreacteurs d'entrainement d'aeronefs a haute puissance
Inventor: PEIKERT JURGEN
IPC: F02C7/057
Filed: 1979-08-01
Abstract: ENTREE A RAMPES SUPERIEURES ET LEVRE INFERIEURE ARTICULEE SUR LE DEVANT AVEC AXE TRANSVERSAL. LE PIVOTEMENT DE LA LEVRE 2 SE REPARTIT EN UNE ZONE SUBSONIQUE-TRANSSONIQUE A ENTRE DES POINTS INFERIEUR A ET MOYEN B A PIVOTEMENTS MAXIMAL ET NUL ET UNE ZONE SUPERSONIQUE B, ENTRE LE POINT MOYEN B ET UN POINT SUPERIEUR C A PIVOTEMENT MAXIMAL, L'ANGLE INFERIEUR DA ETANT COMMANDE COMME FONCTION DE L'INVERSE DU NOMBRE DE MACH, COMPRIS ENTRE 0 ET 1,3, ET DE L'INCIDENCE DE L'AERONEF ET L'ANGLE SUPERIEUR DB REGLE D'APRES LE RAPPORT ENTRE PRESSIONS STATIQUE AU-DESSUS DE LA RAMPE ET GLOBALE DU COURANT EXTERIEUR EN VUE DE LA POUSSEE SUPERSONIQUE OPTIMALE. APPLICATION : AERONEFS HAUTE PUISSANCE.
Patent FR-2463427-A1 (FR)
Title: Diffusely reflecting projection screen - has series of parallel triangular section grooves to reflect light rays twice
IPC: G03B21/60
Filed: 1979-08-10
Abstract: The projection screen has, on one part of the surface, identical parallel grooves. These are shaped to form a dihedral so that at least part of the light undergoes two successive diffusing reflections. The grooves are of triangular section, the dihedral angle being over 90 deg. and, between 90 and 100 deg. There are two groups of grooves which are symmetrical relative to the centre of the screen. The angle of the groove face furtherest from the screen centre is below 45 deg., preferably 35 to 45 deg.
Patent FR-2466111-A1 (FR)
Title: Perfectionnements aux prises de courant a contact en bout et rupture brusque
Inventor: WELU PROSPER
IPC: H01R13/71
Filed: 1979-09-21
Abstract: PRISE DE COURANT A CONTACT EN BOUT DANS LAQUELLE L'UNE DES BROCHES DE CHAQUE PAIRE EST MONTEE COULISSANTE CONTRE L'ACTION D'UN RESSORT TANDIS QUE LES BROCHES DE SOCLE ET DE FICHE SONT MAINTENUES EN POSITION DE CONTACT PAR UN MOYEN DE VERROUILLAGE AMOVIBLE, CONTRE LA TENSION D'UN MOYEN ELASTIQUE. L'INVENTION EST CARACTERISEE EN CE QUE LE CORPS 26, 78 PORTANT LES BROCHES 13, 76 MOBILES PAR RAPPORT AU SOCLE TUBULAIRE 1, 73 SOUS L'ACTION DES MOYENS ELASTIQUES 27, 88, 84 EST DISTINCT DU CORPS DE LA FICHE 21, 62. L'INVENTION PERMET DE SOUSTRAIRE LA COUPURE AUX FREINAGES EXTERIEURS EXERCES SUR LA FICHE.
Patent FR-2443300-A1 (FR)
Title: Procede et outil de realisation par matricage de demi-articulations de joint homocinetique
IPC: B21J5/12
Filed: 1979-12-06
Abstract: L'invention concerne la réalisation d'organes de joints homocinétiques Après la fermeture de l'outil de matriçage 1, 2 qui s'effectue sans formage de la pièce brute 3, on introduit des tiges 6 complémentaires de formage de chemins à billes obliques. Puis on exécute le formage de la pièce 3 en un corps d'articulation muni de ses chemins à billes. Enfin, on fait sortir les tiges 6, on rouvre l'outil 1, 2 et on en expulse le corps d'articulation achevé.
Patent FR-2443658-A1 (FR)
Title: Water heater using copper heat exchanger - which is coated with lead and then with insol. lead salt to prevent corrosion by condensed gas obtd. from oil or gas used as heating fuel
IPC: F28F19/02
Filed: 1979-12-10
Abstract: Heat exchange is heated by gases of combustion from a burner, where the outer surface of the exchanger is coated with lead and then with a protective outer layer (I) formed by a salt which is difficult to dissolve in water. The anions in the salt (I) are formed by >=1 Gp. V element. Pref. salt (I) consists of lead chromate, or lead phosphate. The heat exchangers are usually made of copper coated with Pb and then heated by gas- or oil- burners to produce hot water for central heating or general use. Such Pb coatings are often protected by a layer of PbSO4, but the latter is soluble in condensates arising from the gases, so the heat exchanger corrodes; the invention prevents such corrosion. A substantial increase in the working life of the exchanger is obtd., even when it is used at low temps., and without any major alteration to the mfr. of the exchanger.
Patent FR-2446429-A1 (FR)
Title: Nouveau robinet a plusieurs voies et son procede de fabrication
IPC: F16K11/085
Filed: 1979-12-17
Abstract: La présente invention se rapporte à un nouveau robinet à plusieurs voies et à son procède de fabrication. Le robinet selon l'invention se caractérise en ce que les voies de connexion sont parallèles entre elles. L'avantage essentiel du robinet selon l'invention réside dans le fait qu'il peut être fabriqué à partir d'un moule comportant de nombreuses empreintes et donc avec un prix de revient très bas.
Patent FR-2474558-A1 (FR)
Title: Procede ameliore consolidation de formations geologiques
Inventor: GADELLE CLAUDE
IPC: C09K17/48
Filed: 1980-01-28
Abstract: PROCEDE AMELIORE DE CONSOLIDATION DE FORMATIONS GEOLOGIQUES. CE PROCEDE COMPORTE L'INJECTION D'UN MELANGE ORGANIQUE LIQUIDE CONTENANT AU MOINS UN HYDROCARBURE POLYENIQUE, NOTAMMENT DU POLYBUTADIENE, ET UN CATALYSEUR SOLUBLE DANS CE MELANGE, PUIS LA MISE EN CONTACT DE CE MELANGE AVEC UNE QUANTITE LIMITEE D'OXYGENE. LE CATALYSEUR COMPORTE EN COMBINAISON AU MOINS UN ELEMENT DU GROUPE CONSTITUE PAR LE ZIRCONIUM, LE CERIUM, LE LANTHANE ET LES LANTHANIDES ET AU MOINS UN ELEMENT APPARTENANT AU GROUPE FORME PAR LE VANADIUM, LE MANGANESE, LE COBALT ET LE ZINC. APPLICATION A L'EXPLOITATION DES GISEMENTS D'HYDROCARBURES.
Patent FR-2448174-A1 (FR)
Title: Multifunction data receiver for serial data signals - has pulse duration analyser and shift register for series-parallel conversion onto output bus, or with flip=flop serial output
IPC: G08G1/081
Filed: 1980-01-31
Abstract: The multi-function data receiver has a pulse length analyser on the input and also a function switch to change the operate mode of the receiver. The incoming serial data signals contain the control word required to set the function of the receiver. According to the setting of the function the receiver can process the serial data and provide output at one port or act as a series-parallel converter, thus providing output on a bus. The receiver also incorporates an internal control bus. For processing serial data the input is compared with a local counter. For series-parallel conversion the serial data is fed into a shift register controlled by the pulse length analyser, the output of the shift register being connected to a two-way information bus. The incoming bytes with control words (INe are fed to a Schmitt trigger (10) and then to a network (11) to synchronise incoming data with internal clocking. A local oscillator (12) provides the synchronisation. A pulse duration detector (13) follows and is at the input to the aerial output circuitry (20, 21, F2) and the parallel output circuitry (RS, 22, B1-8). For serial output a flip-flop (F2) is driven by two gates (20, 21) on the pulse duration detector output (13). For parallel output the shift register (RSG) is selected by data control signalling for output in parallel form (B1-B8).