baber/WOPTO huggingface dataset:
Patent FR-2466126-A1 (FR)
Title: Electrical machine with end plate glued to casing - has self-tapping screws for assuring electrical connection between plates and prevents electrostatic build-up of dust
Inventor: PLISSON JACQUES
IPC: H02K5/167
Filed: 1979-09-21
Abstract: The machine has end plates (10), each of which is secured to the casing (12) by a glue or cement (11) etc.. The electrical connection between the plates is made by self tapping screws (17). The end plate has a pressed out slot (20) allowing dust etc. to be expelled from a chamber (19), which may be the passage used for topping up the shaft lubricating oil reservoir (16). This chamber has an opening (18) towards the outer edge of the end plate allowing dust from the rotor-stator space to escape. The method prevents the build-up of dust etc. by electrostatic voltages induced over the wiring etc. and the passage of the shaft of the machine.
Patent FR-2468389-A1 (FR)
Title: Throwing game with disc - has perforated disc thrown to receiver with catching baton engaging perforations
Inventor: MENARD ALBERT DOMINIQUE
IPC: A63B65/10
Filed: 1979-10-30
Abstract: The game uses a slender edged flanged (1a) perforated (1b) disc (1) which is thrown from one player to another. The disc (1) is spun so that it remains horizontal during flight, and the receiving player catches it by a baton (2) engaging a perforation. The perforations may be round and of different sizes, all of a greater diameter than baton tip (2a). A competitive aspect may be introduced by assigning different point values to the holes. The number of points received by the catcher may be inversely proportional to the hole diameter. The holes may be conical to assist baton penetration and may be elongated, the baton thickening (2b) to provide a handle.
Patent FR-2441806-A1 (FR)
Title: Room air heating system - has solar collector with hot water storage tank and heat pump
IPC: F24D11/02
Filed: 1979-11-13
Abstract: The air heating system incorporates a solar heat collector and a hot water storage tank. The water is recirculated between the tank and a heat pump. The evaporator and condenser of the pump are mounted respectively in an air rejection circuit outside and an air distribution circuit inside the building etc. The air is initially heated by contact with the hot water storage tank, before coming into contact with the heat pump condenser and being delivered inside the building.
Patent FR-2470927-A1 (FR)
Title: Water heating system for open fireplace - has hollow baseplate with multiple flow channels connected to hollow fire dogs
IPC: F24B1/183
Filed: 1979-12-07
Abstract: The water heating system combined with an open fireplace uses a hollow baseplate (1) below the combustion zone combined with a set of hollow fire dogs (2) to circulate the water as it is being heated. The baseplate has a flange round it, onto which is fitted a cover forming a chamber divided into two side sections and a main central section by longitudinal partitions forming flow control chambers. End sections are formed by cross partitions, and all sections are divided by alternating ribs to give extended zig-zag flow paths. Holes through the end sections communicate with the hollow interiors (17a) of the upright dogs so that water can also flow through them.
Patent FR-2472686-A1 (FR)
Title: U=shaped metal panel clip - locates nut behind panel with nut legs entering and catching in panel holes
Inventor: GALLES HENRI
IPC: F16B37/04
Filed: 1979-12-28
Abstract: The system is used in fixing to hollow surfaces e.g. sheet metal automobile panels (2) and uses a laminar 'U' shaped clip (6) to locate a captive nut (5). The tip of a fixing bolt is driven into the nut, and clip provides definite lateral play for automatic bolt centering. The nut is of a basally flanged (5a) self-binding type, being fixed against rotation by force fitting in a hexagonal clip (6) hole, and being located proud of the rear clip face. Appropriately sited holes (7,8) locate clip legs (6c,6d) which may return internally square and crank back to permit a snap-on connection. A local dishing (D) of clip bar (6a,6b) may locate the bolt base (5a) flush with the frontal bar (6a,6b) face.
Patent FR-2475271-A1 (FR)
Title: Structure de memoire permanente, a inscription thermo-optique et lecture optique, et procede d'inscription dans une telle structure
Inventor: CORNET JEAN
IPC: B41M5/26
Filed: 1980-02-01
Abstract: L'INVENTION CONCERNE UNE STRUCTURE DE MEMOIRE PERMANENTE, SUPPORTEE PAR UN SUBSTRAT ANIME DE MOUVEMENT. CETTE STRUCTURE EST COMPOSEE D'UNE BI-COUCHE METALLIQUE 9, 10, DEPOSEE SOUS VIDE SUR LE SUBSTRAT 1 EN MATERIAU PEU DILATABLE. L'UNE DES DEUX COUCHES METALLIQUES EST TRES DILATABLE 9, L'AUTRE COUCHE 10 EST PEU DILATABLE, MAIS DUCTILE. AU COURS DE L'INSCRIPTION PAR FAISCEAU LASER, L'ENERGIE DU FAISCEAU, ABSORBEE PAR LA BI-COUCHE 9, 10, CREE UNE ELONGATION DE LA COUCHE DILATABLE 9, LAQUELLE DEFORME LA COUCHE DUCTILE 10 PAR ALLONGEMENT AU-DELA DE LA LIMITE D'ELASTICITE. IL DEMEURE UNE DEFORMATION PERMANENTE DE LA BI-COUCHE SANS PERCAGE. APPLICATIONS AUX DISQUES OPTIQUES EN PARTICULIER.
Patent FR-2475441-A1 (FR)
Title: Hinge knuckle welded to steel plate, esp. to make automobile hinges - using combined flash and projection welding to obtain very strong joint
Inventor: GUIONIE PAUL
IPC: B23K11/14
Filed: 1980-02-13
Abstract: The edge of a steel plate, which is to be welded to a steel tube, is provided with a row of saw teeth; and the peaks of teeth are placed in contact with the ouside surface of tube, which will form the hinge knuckle. An electric resistance welding current is fed between the two components; and a pressure is applied during welding so teeth enter the wall of tube to make a very strong weld. The pref. welding technique consists of a combination of flash- and projection-welding and the peaks of the saw teeth may be sharp or rounded.
Patent FR-2465782-A1 (FR)
Title: Milieu d'isolement selectif de vibrions choleriques, a base de mannose
Inventor: NIWANO KIYOSHI
IPC: C12Q1/04
Filed: 1980-02-29
Abstract: L'INVENTION A POUR OBJET UN MILIEU SELECTIF D'ISOLEMENT POUR VIBRIONS DE CHOLERA. IL COMPREND DU MANNOSE, UN COLORANT DE SULFONAPHTALEINE, LA POLYMYXINE B, UN AGENT TENSIO-ACTIF ET DU TELLURITE DE POTASSIUM; CE MILIEU POSSEDE UNE DIFFERENTIABILITE ET UNE SELECTIVITE TOUTES DEUX EXCELLENTES ET IL EST SPECIALEMENT EFFICACE POUR DETECTER LES BACTERIES DU CHOLERA A PARTIR DE SUBSTANCE PROVENANT DE L'ENVIRONNEMENT OU DE MATIERES CLINIQUES PROVENANT DE PATIENTS EN VOIE DE GUERISON, C'EST-A-DIRE CONTENANT UN PETIT NOMBRE DE BACTERIES DE CHOLERA. UTILISATION DE CE MILIEU POUR LA DETECTION EVENTUELLE D'UN DEBUT D'EPIDEMIE DE CHOLERA.
Patent FR-2477892-A1 (FR)
Title: Under-water diving helmet - has collar forming spherical base on which is pivoted visor
Inventor: MASSON YVES LE
IPC: B63C11/06
Filed: 1980-03-11
Abstract: The underwater diving helmet incorporates a visor which is mounted on a base (1). The base (1) forms a collar supported by the shoulders of the wearer and has a seal round the neck. The visor has a transparent area which is spherical (2) and extends over the wearer's whole area of vision, for at least three hundred degrees of the spherical part, from right to left, and over at least one hundred and twenty degrees from top to bottom. The visor is pivot mounted on the base, and also allows the wearer to turn his head inside the helmet.
Patent FR-2452582-A1 (FR)
IPC: E21B21/06
Filed: 1980-03-26
Abstract: A method of filling up the borehole (1) with the drilling mud while lowering and raising the drilling pipes (2) during the process of drilling the borehole (1) consists in feeding the drilling mud from a filling reservoir (3) into the borehole (1) through a measuring tank (4) interconnected with them. The space above the drilling mud in the filling reservoir (3) is evacuated and connected with the measuring tank (4), the process of filling up being controlled by way of decreasing the vacuum degree in the filling reservoir (3) by allowing portions of air to enter therein, those portions coming from the mouth of the borehole (1) when the level of the drilling mud therein lowers below the point of interconnection of the measuring tank with the mouth of the borehole, the specific gravity of the feeded drilling mud being simultaneously decreased by way of aeration thereof.
Patent FR-2444442-A1 (FR)
Title: Tie rack fixed to wardrobe - is telescopic, movable between vertical and horizontal position, and consists of bar with side arms
IPC: A47G25/74
Filed: 1980-03-18
Abstract: The hanger for ties is pref. mounted in a wardrobe and comprises a support (A) fixed to one of the vertical sides of the cupboard, and a telescopic rack (B) which is hinged onto the support (A) and can be locked in a horizontal position when lifted up on the support (A). The rack (B consists of a straight axial bar (5) from which two rows of parallel arms (6) extend at right angles to the bar (5). The support (A) comprises a circular disc (1) coated on one side (2) with a self-adhesive layer. On the opposite side to the adhesive coating is an extension (3) in the form of a cap with a vertical slot. The end of the bar (5) facing the cap has a tail piece (8) with a protuberance (9) fitting between the bottom surfaces of the cap.
Patent FR-2453551-A1 (FR)
Title: Dispositif emetteur pour un systeme de transfert d'information
IPC: H04B1/38
Filed: 1980-04-04
Abstract: Dispositif émetteur comprenant un émetteur, un circuit indicateur de trajet de transfert occupé, et un circuit de commande présentant une entrée pour un signal de demande d'émission ce circuit de commande étant conçu pour produire, à une sortie qui est couplée à une entrée de commande dudit émetteur, un signal d'activation de transfert pour ledit émetteur en réaction à l'amenée d'un signal de demande d'émission à l'entrée du circuit de commande, caractérisé en ce que le circuit de commande est agencé de manière que ledit intervalle de temps prédéterminé est d'autant plus long que le temps qui s'écoule entre l'amenée dudit signal et l'indication résultante par le circuit indicateur que le trajet de transfert n'est plus complètement occupé, est plus court. Application : systèmes de transfert d'information.
Patent FR-2459349-A1 (FR)
Title: Commande de porte avec un groupe moteur de commande electrique
Inventor: HORMANN MICHAEL
IPC: F16H7/08
Filed: 1980-06-20
Abstract: L'INVENTION CONCERNE UNE COMMANDE DE PORTE AVEC UN GROUPE MOTEUR DE COMMANDE ELECTRIQUE, QUI EST RELIEE PAR UNE TRANSMISSION A COURROIE 17. ELLE EST CARACTERISEE PAR LE FAIT QUE LES ELEMENTS D'ACTIONNEMENT 35, 36 DU DISPOSITIF D'INTERRUPTEURS 37, 38 SONT DISPOSES DE FACON A REPOSER SUR LE BRAS 32, PRATIQUEMENT SANS JEU DANS LA POSITION DE FONCTIONNEMENT NORMAL DE LA PLAQUE 28 ET SONT MAINTENUS DANS CETTE POSITION PAR DES RESSORTS 39, 40, DONT LA FORCE DE PRECONTRAINTE EST MODIFIABLE A VOLONTE, AU MOYEN D'UN DISPOSITIF DE REGLAGE 41 ET, RESPECTIVEMENT 42.
Patent FR-2486000-A1 (FR)
Title: Fixing system for seat of sulky - uses hook and buckle combined with tilting lever fitting into one of series of holes to provide seat position adjustment
IPC: B62C1/08
Filed: 1980-07-04
Abstract: The device permits the manual fixing of a seat (1) on the members (2,3) of a sulky chassis. It consists of a hook (4) and a buckle (5) which are fitted to the support (8) to give complete locking by simple tilting of a lever (6). It is possible to position the seat relative to the assembly by moving the fixing elements from one hole (9) to another one and then locking them with bolts against the seat. A soft material (7) is inserted between the seat and the rear members (3) of the sulky frame.
Patent FR-2488116-A1 (FR)
Title: Bed with frame folding into seat - consists of three panels hinged together, with one end folding up to lie flat against centre panel and supported on hinged legs
IPC: A47C17/16
Filed: 1980-08-08
Abstract: The bed which folds up into a seat with a back-rest consists of three panels (1,2,3) hinged together and each formed of two lengthwise struts between which are stretched springs forming the mattress base. The back-rest is formed by one of the end panels (3), with the other end panel (1) folded to rest against the central panel (2). The back-rest is hinged to the legs (12,15) of the folded back panel, and is held in an inclined position by abutting against a fixed stop. When the frame is in the chair configuration, the folded legs are held against the two longitudinals of the back-rest by rings (16).
Patent FR-2464162-A1 (FR)
Title: Actuating linkage for tractor clutch - has link between cab and chassis intersecting cab tilting axis, or crossing at distance dependent on load
Inventor: MAHLER HEINRICH
IPC: B62D33/06
Filed: 1980-08-29
Abstract: A clutch linkage for a tipping cab, or for a tractor cab which is sprung on the chassis, has the control rod, (13) or its extension, taken through the axis (7) about which the cab tilts during braking and acceleration. This provides a fine degree of control under all torque demands. The linkage direction can be offset slightly from the tipping axis to allow the maximum loading of the cab. The other controls are linked to the transmission by cables or electrical connections.
Patent FR-2470614-A1 (FR)
Title: Ski, notamment ski alpin
Inventor: STAUFER ADOLF
IPC: A63C5/00
Filed: 1980-11-24
Abstract: LA LARGEUR AU MILIEU DU SKI EST INFERIEURE OU EGALE A LA VALEUR MOYENNE DE LA PLUS GRANDE LARGEUR DE LA PARTIE AVANT ET DE LA PLUS GRANDE LARGEUR DE LA PARTIE ARRIERE. DANS SA ZONE MEDIANE LE SKI PRESENTE UNE LARGEUR MAXIMALE RELATIVE ET DANS SES ZONES AVANT ET ARRIERE UNE LARGEUR MINIMALE RELATIVE.
Patent FR-2494612-A1 (FR)
Title: Flash removal from inside welded pipes - using appts. with pivoted cutting tool holders supported by rollers
Inventor: PATON B E
IPC: B21C37/08
Filed: 1980-11-26
Abstract: The flash removal appts. comprises a body on which V-shaped two-arm levers are mounted around its periphery. A cutting tool holder is pivoted to one arm of each of the levers and cutting tools are rigidly attached to the holders. Drives, for turning the levers, are mounted on the body, each being connected with the other arm of each of the levers. On the front and rear ends of the cutting tool holders, there are mounted rollers in contact with the inner surface of the pipe. The appts. is useful in laying pipelines and in welding casing pipes. The cutting tool holders can be held in a withdrawn position during transport of the appts. thus facilitating movement of the appts. within the pipe. Abrasive wear of the rollers is insignificant compared with that of sliding supports so that any dangerous increase in cutting depth is excluded. Hence, the period between repairs of the appts. is increased, power- consumption for moving the appts. within pipes is reduced, and damage to the pipe walls and weld during flash removal is excluded.
Patent FR-2500207-A1 (FR)
Title: Isolateur electrique de type console isolante
Inventor: WILLEM MICHEL
IPC: H01B17/16
Filed: 1981-02-13
Abstract: ISOLATEUR ELECTRIQUE COMPORTANT UN JONC 2 EN RESINE ET FIBRES DE VERRE DONT UNE EXTREMITE EST LOGEE DANS UNE FERRURE 1 SOLIDARISEE A UN PYLONE 20. AFIN D'AMELIORER LA RESISTANCE MECANIQUE DU JONC 2 AU NIVEAU DE L'ANCRAGE, ON PREVOIT UNE FERRURE 1 DONT LE LOGEMENT EST EN FORME DE BICONE ET ON Y SCELLE A L'AIDE D'UN MATERIAU ORGANIQUE 16 L'EXTREMITE DU JONC INITIALEMENT USINEE SUIVANT UNE OU DEUX GORGES.
Patent FR-2477638-A1 (FR)
Title: Dispositif de commande de carburation pour un moteur a combustion interne
Inventor: OHGAMI MASAAKI
IPC: F02D41/14
Filed: 1981-03-09
Abstract: L'INVENTION CONCERNE LA COMMANDE DU RAPPORT AIRCARBURANT POUR UN MOTEUR A COMBUSTION INTERNE. LE DISPOSITIF DE L'INVENTION EST DESTINE A COMMANDER LE RAPPORT AIRCARBURANT DU MELANGE QUI ALIMENTE UN MOTEUR A COMBUSTION INTERNE, POUR LE FAIRE COINCIDER AVEC LE RAPPORT STOECHIOMETRIQUE. IL COMPREND NOTAMMENT UN CIRCUIT DE COMMUTATION 22 QUI EST COMMANDE PAR UN CIRCUIT DE DETECTION 21 DETECTANT SI LE MOTEUR FONCTIONNE EN REGIME ETABLI OU EN REGIME TRANSITOIRE. LE SIGNAL DE SORTIE D'UN CAPTEUR DE O 19 EST TRAITE DIFFEREMMENT SELON QUE LE MOTEUR QUE LE MOTEUR FONCTIONNE EN REGIME ETABLI OU EN REGIME TRANSITOIRE, AFIN D'ASSURER DANS TOUS LES CAS UNE COMMANDE OPTIMALE DU RAPPORT AIRCARBURANT. APPLICATION A LA CONSTRUCTION AUTOMOBILE.
Patent FR-2502537-A1 (FR)
Title: Shake table for forming reinforced concrete structure - has paired single-shaft vibration exciters secured to resiliently supported beams
Inventor: KRAKINOVSKY LEOPOLD MARKOVICH
IPC: B28B1/087
Filed: 1981-03-25
Abstract: The shake table is for forming concrete structures and comprises beams mounted on flexible supports and capable of being rearranged depending on the shape and mass of the structure to be formed. Each of the beams incorporates a pair of resilient elements and a pair of single-shaft vibration exciters, each underlying a related resilient element. The single shaft vibration exciters are so positioned that the shaft axis of each exciter is perpendicular to the longitudinal centre line of the structure being formed. The distance between the shaft axes of the single-shaft vibration exciters secured to any of the beams amounts to from 0.4 to 0.6 of the distance between the centre points of any two neighbouring beams arranged along a common centre line.
Patent FR-2479394-A1 (FR)
Title: Tambour d'etancheite a eau, destine a des conduites de circulation de gaz et comportant des tubes munis de buses pour la dispersion de ce gaz dans l'eau d'etancheite
Inventor: SHINOBU OKITSUGU
IPC: F23K5/00
Filed: 1981-03-27
Abstract: TAMBOUR D'ETANCHEITE A EAU, DESTINE A DES CONDUITES DE CIRCULATION DE GAZ ET COMPORTANT DES TUBES MUNIS DE BUSES POUR LA DISPERSION DE CE GAZ DANS L'EAU D'ETANCHEITE. IL EST CONSTITUE PAR UN RECIPIENT 3 RENFERMANT UNE MASSE D'EAU 2 ASSURANT L'ETANCHEITE, UN TUBE 4 D'INTRODUCTION DE GAZ QUI PART DE LA PARTIE SUPERIEURE DE CE RECIPIENT ET QUI EST DIRIGE VERS LE BAS, L'EXTREMITE INFERIEURE 41 DE CE TUBE DEBOUCHANT PLUS BAS QUE LA SURFACE LIBRE DE L'EAU ET UN TUBE 5 D'ECHAPPEMENT DE GAZ SITUE A LA PARTIE SUPERIEURE DE CE RECIPIENT 3. LE TUBE 4 D'INTRODUCTION DE GAZ EST MUNI DE TUBES 6 DE DISPERSION DE GAZ DISPOSES RADIALEMENT ET PRESENTANT UN GRAND NOMBRE DE BUSES 61 SERVANT A DIFFUSER LE GAZ, CES BUSES ETANT SITUEES PLUS HAUT QUE L'EXTREMITE INFERIEURE 41 DU TUBE 4 D'INTRODUCTION DE GAZ MAIS PLUS BAS QUE LA SURFACE LIBRE WL DE L'EAU.
Patent FR-2482725-A1 (FR)
Title: Procede de mesure de la temperature du gaz et des corpuscules du fluide de travail d'un generateur magneto-hydrodynamique
Inventor: ABRAMOVNA VASILIEVA INNA
IPC: G01J5/60
Filed: 1981-05-14
Abstract: L'INVENTION CONCERNE LE DOMAINE DE MESURE DE LA TEMPERATURE DE COMBUSTION, ET PLUS PARTICULIEREMENT, UN PROCEDE POUR MESURER LA TEMPERATURE DU GAZ ET DE CORPUSCULES CONSTITUANT LE FLUIDE DE TRAVAIL DUN GENERATEUR MHD. LE PROCEDE DE MESURE DE LA TEMPERATURE D'UN GAZ ET DES CORPUSCULES DANS LE FLUIDE DE TRAVAIL D'UN GENERATEUR MHD CONSISTE A MESURER LES VALEURS O1, O2, ET O3, DE L'INTENSITE D'UN FLUX DE RAYONNEMENT DU FLUIDE DE TRAVAIL, SE TROUVANT DANS LA CHAMBRE DE TRAVAIL 4 DU GENERATEUR MHD, ET DU FLUX DE RAYONNEMENT DU FLUIDE DE TRAVAIL, IRRADIE PAR LA SOURCE PRINCIPALE 1, AU MOINS A DEUX LONGUEURS D'ONDE L ET L PARMI LESQUELLES LA LONGUEUR D'ONDE L SE SITUE DANS LE DOMAINE DE LA LIGNE SPECTRALE DE RESONNANCE D'UN METAL ALCALIN, TANDIS QUE LA VALEUR L DE LA LONGUEUR D'ONDE EST CHOISIE EN PARTANT DE LA RELATION (CF DESSIN DANS BOPI) PUIS ON CALCULE LA TEMPERATURE DU GAZ ET DES CORPUSCULES SUIVANT LES RELATIONS DE LA METHODE GENERALISEE D'INVERSEMENT DES RAIES SPECTRALES, DANS LES EQUATIONS CI-DESSUS:P EST LA PRESSION DES PRODUITS DE COMBUSTION (ATM);T T SONT LES VALEURS APPROXIMATIVES DE LA TEMPERATURE MAXIMALE POSSIBLE DU FLUIDE DE TRAVAIL DU GENERATEUR MHD, RESPECTIVEMENT, (K);Y EST LA TENEUR MOLAIRE EN ATOMES DE METAL ALCALIN AVEC UNE LIGNE SPECTRALE DE RESONANCE A LA LONGUEUR D'ONDE L()L EST L'EPAISSEUR DU FLUIDE DE TRAVAIL (CM);X LE COEFFICIENT ATOMIQUE DE FOICHT A UNE DISTANCE DLO DU CENTRE DE LA RAIE SPECTRALE, OU LE COEFFICIENT DE FOICHT SE TRANSFORME EN COEFFICIENT EN PUISSANCE AVEC UN EXPOSANT (-X);C EST LA CONSTANTE DE RAYONNEMENT, C14380M.M.K EST LE COEFFICIENT D'EFFET DE GRENAILLET (L) EST LA DENSITE OPTIQUE ADMISSIBLE SUR LA LONGUEUR D'ONDE L. L'INVENTION EST PREVUE POUR ETRE UTILISEE DANS LES GENERATEURS MHD EN BUT D'OPTIMISER LEUR FONCTIONNEMENT.
Patent FR-2482862-A1 (FR)
Inventor: SCHMIDT SIEGFRIED
IPC: A62B1/10
Filed: 1981-05-21
Abstract: The invention relates to a fall-prevention device of variable rope length, the braking mechanism of which is actuated in response to a predetermined rope run-out acceleration and/or rope run-out speed in order to protect persons against falling or to protect them against sliding down too quickly in an uncontrolled manner. The object on which the present invention is based is to develop a fall-prevention device of variable rope length in which the braking mechanism is switched on immediately at the start of a fall and/or of a rapid uncontrollable downslide, in order to keep the forces occurring during the braking operation as low as possible and to construct the fall-prevention device in such a way that it can be fastened to the safety harness or belt of the person to be protected, in order to give the falling person the possibility of self-preservation. According to the invention, the object is achieved in that a rope run-off acceleration is predetermined as a pulse for switching on the braking mechanism for the purpose of braking the rope. If a falling acceleration of </= 9.81 m/s<2> is preset as a switch-on pulse, in the event of a fall the braking mechanism comes into operation immediately at the start of the fall, thereby keeping the braking forces low.
Patent FR-2496464-A1 (FR)
Title: 4-(or 3-) 3,4-Di:hydroxyphenyl pyridine and its salts - are cardiotonics which increase cardiac contractility, prepd. by demethylation of 3,4-di:methoxy cpd. with hydrobromic acid
Inventor: COLLINS JOSEPH CHARLES
IPC: C07D213/30
Filed: 1981-06-11
Abstract: 4-(or 3)-(3,4-dihydroxy-phenyl) -pyridine, (I), and its acid addn. salts are new. Cardiotonic compsns. for increasing cardiac contractility contg. (I) or 4-(or 3)-(3,4-dimethoxy-phenyl) pyridine (II) or their salts are new. 2-(3,4-dihydroxy or dimethoxy -phenyl)pyridine and its acid addn. salts are described as new cpds., but do not form part of the present invention. (I) is prepd. by demethylation of (II) using aq. hydrobromic acid, pref. at 100-126 deg.C. Other demethylation agents may be used if desired. (II) is described in US3575985 as an intermediate for preparing +, -(3,4-ihydroxy-phenyl)-1-methyl pyridinium cpds. having cardiovascular activity. Cpds. are cardiotonics which increase cardiac contractility and may be administered orally or parenterally using classical formulations. Pharmacological tests are described.
Patent FR-2487117-A1 (FR)
Title: Tube d'images en couleur comportant un masque d'ombre muni d'une couche reflectrice d'electrons
Inventor: WAAL JAN VAN DER
IPC: H01J29/07
Filed: 1981-07-15
Abstract: L'INVENTION CONCERNE UN TUBE D'IMAGES EN COULEUR MUNI D'UN MASQUE D'OMBRE 12 PLACE DEVANT L'ECRAN IMAGE 8. LE MASQUE D'OMBRE 12 EST MUNI, AU MOINS DU COTE SITUE A L'OPPOSE DE L'ECRAN IMAGE D'UNE COUCHE 14 CONTENANT ENTRE LES OUVERTURES DU MASQUE 13 0,2 A 2MGCM D'UN METAL LOURD OU D'UN COMPOSE DE METAL LOURD. LE METAL LOURD PRESENTE UN NUMERO ATOMIQUE SUPERIEUR A 70. UNE TELLE COUCHE PRESENTE UN COEFFICIENT DE REFLEXION ELECTRONIQUE ELEVE, CE QUI SE TRADUIT PAR UNE REDUCTION DE L'ABSORPTION DE L'ENERGIE DES ELECTRONS ATTEIGNANT LE MASQUE D'OMBRE. DE CE FAIT, LE GONFLEMENT TOTAL (EN ANGLAIS OVERALL DOMING) OU LE GONFLEMENT LOCAL (EN ANGLAIS LOCAL DOMING) PROVOQUES PAR LA DILATATION THERMIQUE DU MASQUE D'OMBRE TRAITE CONFORMEMENT A L'INVENTION EST PLUS FAIBLE QUE DANS LE CAS D'UN MASQUE NON MUNI D'UNE TELLE COUCHE. IL EN RESULTE UN DEPLACEMENT PLUS FAIBLE DU SPOT FORME SUR L'ECRAN IMAGE A TRAVERS UNE OUVERTURE 13 DU MASQUE, CE QUI PERMET D'AMELIORER L'IMAGE EN COULEUR. APPLICATION: TUBE D'IMAGES EN COULEUR.