baber/WOPTO huggingface dataset:
Patent EP-0421701-A1 (EP)
Inventor: LEYSHON DAVID W
IPC: C07C4/06
Filed: 1990-10-01
Abstract: A process for the preparation of propylene from C₄ or higher feed by a combination of cracking and metathesis wherein higher hydrocarbon is cracked to form ethylene and propylene and at least a portion of the ethylene is metathesized to propylene.
Patent EP-0435497-A1 (EP)
Inventor: SPERANZA GEORGE PHILLIP SR
IPC: C08G59/50
Filed: 1990-12-07
Abstract: Compounds of the formula:
       
 wherein each R is a group of the formula:
       
 in which n is 2 to 3, 
which are useful as curing agents for epoxy resins, can be made by reacting a carboxylic acid component selected from maleic acid, fumaric acid, anhydrides thereof and C₁ to C₄ dialkyl maleates and fumarates, with a polyoxyethylene diamine of the formula:
Patent EP-0379396-A1 (EP)
Inventor: CHEMINAL BERNARD
IPC: C07B61/00
Filed: 1990-01-08
Abstract: Manufacture of chlorofluoroethanes of formula CF3-CHFxCl2-x, where x is equal to 0 or 1, by catalytic hydrogenation of a perhaloethane of formula CF3-CFxCl3-x. 
<??>Use of a catalyst based on ruthenium deposited on a support enables the selectivity to be improved.
Patent EP-0396456-A1 (EP)
Inventor: CALVENTUS ANTOINE
IPC: B29B11/04
Filed: 1990-04-26
Abstract: A stack (3A, 3B, 3C) of thin sheets, having the desired final thickness, passes from a loading station (1) to a pre-heating station (5) comprising a vacuum enclosure (6) within which a press with heated platens (7, 8) operates. After heating in the press and under vacuum, the stack passes into a shaping station equipped with a cooled-tool press (14, 15). <IMAGE>
Patent EP-0385891-A1 (EP)
Inventor: BOUTIN JEAN
IPC: C25C7/04
Filed: 1990-02-26
Abstract: Diaphragm for the electrolysis in baths of molten metal halide salts. 
<??>This diaphragm is characterised in that it consists of carbon fibres at least partially embedded in a rigid material inert towards the bath, the whole having a porosity of specified value. 
<??>It finds its application in the production of polyvalent metals of high purity, where it permits an easier management of the electrolysis and where, because of its improved lifetime, it ensures gains in production efficiency.
Patent EP-0448622-A1 (EP)
Inventor: RASINSKY JOHN E
IPC: G09B9/00
Filed: 1989-11-13
Abstract: Une unité d'entraînement interactive pour la simulation électronique de contre-mesures affiche des menaces en vol et des réponses de contre-mesures représentatives d'un matériel de combat réel. Des scénarios de menaces sont mémorisés dans une mémoire d'ordinateur et affichés sur une console d'affichage à l'aide d'un bouton-poussoir. Des paramètres de défauts peuvent être aisément modifiés par l'opérateur grâce à une commande de logiciel. La position de l'avion par rapport à des menaces sélectionnées est affichée en temps réel en superposition par rapport aux paramètres de menaces. Des affichages sont identiques à ceux fournis par l'équipement simulé et reflètent l'état véritable opérationnel préétabli par l'opérateur.
Patent EP-0438535-A1 (EP)
Inventor: KUKANSKIS PETER E
IPC: H05K3/24
Filed: 1989-11-20
Abstract: La composition décrite, qui sert à éliminer de surfaces de cuivre leur revêtement en étain, en plomb ou en métal de brasage, ainsi que toute couche sous-jacente en alliage de cuivre et d'étain, contient un acide sulfonique d'alcane, tel que de préférence un acide sulfonique de méthane, un nitrate inorganique, tel que de préférence un nitrate ferrique, et un composant inhibiteur. Une telle composition permet une élimination rapide du revêtement, sans formation notable de boue ou de précipité ou de particules en suspension, et sans que la surface de cuivre sous-jacente ne subisse d'attaque sensible.
Patent EP-0412171-A1 (EP)
Title: Substance non monocristalline contenant de l'iridium, du tantale et de l'aluminium
Inventor: HASEGAWA KENJI
IPC: B41J2/16
Filed: 1990-02-28
Abstract: L'invention concerne une nouvelle substance non monocristalline contenant de l'iridium, du tantale et de l'aluminium, chacun dans la proportion suivante: 28 at.% Ir 90 at.%, 5 at.% Ta 65 at.%, 1 at.% Al 45 at.%, ainsi qu'un élément comprenant un film de ladite substance non monocristalline, disposé sur un support.
Patent EP-0413831-A1 (EP)
Inventor: MATSUNAGA YUSUKE
IPC: G06F17/50
Filed: 1990-03-09
Abstract: This invention relates to a method of representing a logic circuit in the optimization of a multi-stage logic circuit for executing deletion and reductive transformation of a redundant circuit portion without changing an output logic. A binary decision graph expressing a tolerance function of a tree structure or a logic function is prepared by deciding the precedence of a plurality of input variables of the multi-stage logic circuit, assigning the first input variable to the root and all the other variables to nodes, executing branching starting with the root for every logic (1,0) that the assigned variable can assume, connecting sequentially the branches to the node to which the next variable is assigned in accordance with the decided precedence and finally obtaining the tree structure wherein the branch is connected to the leaf which provides the logic (1,0 DON'T CARE) of each gate and net of the circuit or the leaf which provides the logic (1,0). The merging of gates is effected by taking the intersection which allows the branch to terminate at the leaf of 0 or 1 for the combination of the logic of the input variables in which the branch connects to the leaf of DON'T CARE, between the two binary decision graphs representing the tolerance functions. Each binary decision graph is traced in the direction of the same logic of each input variable from the root between the two binary decision graphs of the same kind and when the leaf is reached,the operation between the logics of the leaves is repeated for all of the combinations of the logics of the input variables. Further,the roots and nodes other than the leaves are classified into three groups which do not connect to the logic 1,0 and the leaf of DON'T CARE and into a group other than these three groups in order to improve the speed of the operation between the two binary decision graphs.
Patent EP-0423364-A1 (EP)
Inventor: OHSATO KIYOSHI
IPC: G11B7/09
Filed: 1990-04-23
Abstract: Un appareil d'enregistrement/reproduction optique comprend une pluralité de faisceaux lumineux qui sont divisés en un faisceau principal et en sous-faisceaux, et sont dirigés sur le disque afin d'y enregistrer ou reproduire des données. Sur le disque N, les spots lumineux du faisceau principal (Qam, Qbm) et des sous-faisceaux (Qap, Qan, Qbp, Qbn) sont disposés comme suit: les spots lumineux du faisceau principal sont espacés avec le même intervalle dans une direction radiale du disque, cet intervalle étant un multiple entier de l'entraxe des pistes (Tp) du disque. Les spots lumineux des sous-faisceaux sont disposés de telle manière que l'intervalle Rs entre n'importe lequel de ceux-ci et le spot du faisceau principal correspondant peut être égal à N fois l'intervalle mutuel (Rm) des spots du faisceau principal. D'autre part, les spots du faisceau principal et des sous-faisceaux sont disposés à un intervalle radial égal qui est un produit de la moitié de l'entraxe des pistes (Tp) par un nombre impair. Parmi les spots du faisceau principal, le faisceau principal positionné à une extrémité et le sous-faisceau correspondant sont détectés par un détecteur de lumière qui divise pratiquement par deux, et un signal de défaut d'alignement est produit sur la base de la sortie du détecteur. Ce dispositif permet d'obtenir des signaux intéressants de défaut d'alignement tout en supprimant les effets néfastes provoqués par l'inclinaison du disque, la différence de quantité de lumière parmi les faisceaux lumineux, etc.
Patent EP-0520989-A1 (EP)
Inventor: BAITZ GUENTER
IPC: G06F1/16
Filed: 1990-09-21
Abstract: L'invention concerne un ordinateur portatif au format ''laptop'' comprenant un boîtier de base auquel est associé une imprimante (2'), un clavier pour l'introduction des données (320, 328) et un écran (306, 304). Le boîtier de base possède un canal de transport (3') pour un support d'impression, qui s'étend depuis le côté de l'utilisateur vers l'arrière et qui occupe à peu près toute la largeur du boîtier de base, de sorte qu'il est possible d'imprimer des supports d'impression de largeur appropriée (par exemple le format DIN A4). L'imprimante (2) a la forme d'une imprimante à base plate et présente de préférence une tête d'impression à aiguilles se déplaçant dans la partie inférieure du boîtier (4'), perpendiculairement par rapport à la direction de transport (8) du support d'impression (parallèle aux lignes).
Patent EP-0441234-A1 (EP)
Inventor: GENSCH INGO DIPL-ING
IPC: D21H19/30
Filed: 1991-01-30
Abstract: The invention relates to plastic-coated paper or cardboard, wherein the plastic coating has been applied to the paper by the co-extrusion technique. As the plastic coating, a polyamide is used as a barrier layer and a polymer is used as an adhesion promoter. The polymer is either a terpolymer based on ethylene/acrylate esters with 5 - 15 % by volume of acrylate ester and 2 - 5 % by volume of maleic anhydride, the remainder being ethylene or an ethylene/acrylic acid polymer with a comonomer content of 3 - 9 % by volume, the remainder being ethylene, especially the ethylene/acrylic acid copolymer having been crosslinked with metal ions.
Patent EP-0446837-A1 (EP)
Inventor: KRAEMER WILHELM
IPC: H01F38/30
Filed: 1991-03-11
Abstract: A feed-through transformer (1) is proposed, having a rod-shaped feed-through bolt (5) consisting of electrically conductive metal as a primary winding and a measurement winding (6), arranged in the form of a ring around the feed-through bolt, as secondary winding, in which both the feed-through bolt (5) and the measurement winding (6) are embedded on all sides in an insulating body (3) consisting of cast resin. Perforations are provided in each case for the electrical connection of the measurement winding (6) and for the electrical connection of both ends of the feed-through bolt (5). The insulating body (3) has a flat, planar base part (16), which can be sealed off, at the location of the feed-through of the one end of the feed-through bolt (5). <IMAGE>
Patent EP-0457294-A1 (EP)
Inventor: SAKIYAMA KAZUYUKI
IPC: G21K1/00
Filed: 1991-05-15
Abstract: In order to take into account effect of load resistance applied to electromagnetic field in analyzing electromagnetic wave oscillator, the present invention arranges resistance equivalent to load resistance in analytical region, and converts voltage applied to load and current flowing therein into an electric field and a magnetic field components to analyze electromagetic field distribution of entire analytical region , and thus motion of an electrical charge is analyzed taking into account force applied to electric charge by electromagnetic field distribution, and such compound analyses of both electric charge motion and electromagnetic field are alternately and repeatedly performed.
Patent EP-0466046-A1 (EP)
Inventor: TROMAN DAVID ANTHONY
IPC: G01L5/00
Filed: 1991-07-05
Abstract: A load sensing arrangement comprises first (11) and second (14) members connected together by a pin (30) for relative movement about the axis (31) of the pin (30), the pin (30) having an internal hollow (33), at least two strain gauge means (51-54) spaced longitudinally along the pin (30) and each being secured to a side wall (49) of the pin (30) and there being an electronic circuit (39) located within the internal hollow (38) of the pin (30), longitudinally between the two strain gauge means (S1,S2;S3,S4), each strain gauge means (51-54) being electrically connected to the electronic circuit (39) which includes an amplifier to amplify signals produced by the strain gauge means (S1-S4), means to provide a signal from the electronic circuit (39) to a remote indicating means (27,28) which at least indicates when the load transmitted from the first (11) to the second member (14) through the pin (30), sensed by the strain gauge means (S1-S4), reaches a threshold value.
Patent EP-0480137-A1 (EP)
IPC: B60R22/18
Filed: 1991-07-26
Abstract: The invention relates to a pre-tensioner for a three-point safety belt system for vehicles with a cylinder-piston unit (2) and a clamping device (3) for a belt webbing (4). According to the invention the cylinder-piston unit (2) comprises an outer tube (5) and an inner tube (6) contained in this. A pyrotechnic charge (9) is fitted on the outer tube (5), which charge can be ignited into a combustion chamber (14) of the inner tube (6). Such an arrangement takes up little space and the pressure behaviour on combustion of the propellant charge can be influenced and adjusted by the size and shape of the combustion chamber. <IMAGE>
Patent EP-0489410-A1 (EP)
Inventor: WERNER FOLKE
IPC: B24B3/26
Filed: 1991-12-03
Abstract: In a device for sharpening drill bits with a sharpening disc (7), which is rotatable about a central axis (1), with a conical sharpening surface (8), a drill-bit guide piece (11, 12) opposite the sharpening surface with, parallel to the central axis, guide ducts (13) for guiding the drill bits to the sharpening surface, the guide ducts being at least approximately tangent to an imaginary cylinder jacket (14) which is coaxial with the central axis and which meets the end of the sharpening surface lying next to the drill-bit guide piece, step formation brought about by wear is prevented in the sharpening disc by the sharpening surface (8) forming at its end lying next to the drill-bit guide piece (11, 12), with the surface section (9) adjacent thereto of the sharpening disc (7), an acute-angled edge (10). 
<IMAGE>
Patent EP-0496131-A1 (EP)
Inventor: ROUWENDAAL JOSEPHUS ANDREAS MA
IPC: E05F15/10
Filed: 1991-12-05
Abstract: A revolving door is provided with a number of door wings (2) which can be driven with the aid of a drive mechanism. This comprises a chain (5) running in a substantially horizontal plane along a number of chain wheels (6) in an essentially polygonal path and operatively engaging at least one door wing by means of a carrier means (8). This carrier means comprises two hinged rods (9, 10) which engage the chain at two spaced apart points (A, B) and are interconnected by means of a lever (11) which is movably and driveably connected to the door wing.
Patent EP-0502266-A1 (EP)
Inventor: GROH OTTO
IPC: A63B9/00
Filed: 1991-10-29
Abstract: Scaffolding system, in particular as sports or playing equipment or outdoor furniture, comprising at least one bearing element and an add-on part connected to the latter, the bearing element comprising a tube element of recycled plastic, which is provided with an inner reinforcing tube of metal, the add-on part being fastened on the tube element (24) by at least one fastening element, the fastening element having at least one basic body (35, 36), which is adapted in its shape to the outer wall of the tube element (24), hugs the latter and bears at least one stop element (25) for connecting to the add-on part (27, 28), as well as a non-positive and/or positive connection between fastening element and tube element (24) by at least one substantially rod-shaped connecting element (45) which penetrates the fastening element and the tube element (24) at least partially. <IMAGE>
Patent EP-0501047-A1 (EP)
Inventor: FUJIHIRA TADAO
IPC: H01G9/055
Filed: 1991-02-25
Abstract: Aluminum foils used as a material of electrodes in electrolytic capacitors are manufactured by a method in which a surface portion an aluminum foil is removed at first before the foils are electrochemically or chemically etched later. Then, an initial internal oxide coating 5 to 50 Å thick is formed on surface of the aluminum foils from which the surface portion has been removed. Subsequently, the aluminum foils are subjected to high temperature heat treatment such that the whole thickness of the oxide coating does not exceed 70 Å.
Patent EP-0456391-A1 (EP)
Inventor: IMUTA JUNICHI
IPC: C07D307/33
Filed: 1991-04-26
Abstract: The present invention provides a process for preparing dihydrofuranone derivative of the fornula (III):
       
 wherein R¹ and R³ are individually lower alkyl, and R² is hydrogen or lower alkyl, by reacting a dihydrofuranone derivative of the formula (I):
       
 wherein R¹ is as defined above, with a malonic acid derivative of the formula (II):
       
 wherein R² and R³ are as defined above, in the presence of an alkalimetal alkoxide and/or an alkalimetal hydroxide.
Patent EP-0461823-A1 (EP)
Inventor: IBI AKIRA
IPC: C07C231/24
Filed: 1991-06-07
Abstract: A purification process of crude methacrylamide by recrystallization from an aqueous methacrylamide solution, comprising the steps of conducting crystallization by adjusting the hydrogen ion concentration of the aqueous methacrylamide solution to pH 8 or more, separating a methacrylamide crystal, adjusting 5% by weight or more of resulting mother liquor to pH 5 or less, separating precipitated insoluble matter, and reusing thus-treated mother liquor, is provided. 
     The high quality methacrylamide crystal thus obtained is excellent in Hazen number, purity and transparency of a methanol solution and suitable for uses such as windshield glasses.
Patent EP-0467574-A1 (EP)
Inventor: LOVATO ATTILIO
IPC: A44B11/25
Filed: 1991-07-09
Abstract: A releasable buckle (1) is moulded of synthetic plastics material and comprises a female part (2), and a male part (3) which snap-engages into a socket (20) in the female part (2) by means of a pair of longitudinal resilient arms (5) provided with teeth (6) which lock the buckle by co-operating with respective edges (16) of a pair of lateral through slots (22) in the female part, the male part being further provided with a central rigid arm (7) co-operating with guide means (13, 14) of the socket in the female part and adapted to limit, in use, the deflection of the resilient arms (5), and the rigid arm (7) having a length such as to co-operate interferingly, when the teeth (6) are in the engaged position in the slots (22), with resilient means (4) such as an integral leaf spring (41) provided on a bottom wall of the socket in the female part.
Patent EP-0447325-A1 (EP)
Inventor: MARCINIAK GILBERT
IPC: C07D307/62
Filed: 1991-03-15
Abstract: This invention relates to derivatives of certain 3,4-dihydroxy-2,5-dihydrofuran-5-ones, to the intermediates and processes useful for their preparation, to their free-radical scavenger and cellular protective properties, and to their end-use application as therapeutic agents.
Patent EP-0513007-A1 (EP)
Title: Inductively coupled saw device and method for making the same.
Inventor: NYSEN PAUL A
IPC: H03H9/02
Filed: 1990-11-13
Abstract: An apparatus for coupling energy into and out of a SAW device which can serve as a transponder in a "passive interrogator label system". The device includes a conductive loop deposited on the active surface of the piezoelectric substrate which is electrically connected at its ends to the two transducer terminals of the SAW. The conductive loop forms an inductive element for coupling energy into and out of the SAW device. The active surface of the device is protected by a non-conductive cover (e.g. glass) adhered to the surface.
Patent EP-0521900-A1 (EP)
Title: -g(a)-CYANACRYLATE ADHESIVE COMPOSITIONS.
Inventor: WENZ GERHARD
IPC: C09J4/00
Filed: 1991-03-18
Abstract: PCT No. PCT/EP91/00517 Sec. 371 Date Nov. 17, 1992 Sec. 102(e) Date Nov. 17, 1992 PCT Filed Mar. 18, 1991 PCT Pub. No. WO91/14749 PCT Pub. Date Oct. 3, 1991.The setting properties of an  alpha -cyanoacrylate adhesive composition are accelerated by adding thereto a hydroxyl group derivative of an  alpha -,  beta - or  gamma -cyclodextrin which is at least partly soluble in the  alpha -cyanoacrylate.
Patent EP-0521041-A1 (EP)
Title: Pipeline and passageway lining materials.
Inventor: SMITH EDWARD PETER CHURCH GARD
IPC: B29K105/06
Filed: 1991-03-15
Abstract: A soft lining process lining tube is made up of an inner layer with one or more reinforcement layers wrapped there around. The or each reinforcement layer is wrapped so that the edges thereof overlap and the said overlapped edges may be adhered together with an adhesive which will yield when subsequently the lining tube is inflated onto a pipeline or passageway surface to be lined. The inner layer is of resin absorbent material as is the or each reinforcement layer, and the lining tube is impregnated with curable synthetic resin before being inflated into position. The resin is caused to cure so that the reinforcement layer or layers becomes or become embedded in the cured resin.
Patent EP-0531365-A1 (EP)
Inventor: CARTER WILLIAM A
IPC: A61K49/00
Filed: 1991-05-08
Abstract: Des infections d'hépatite virale peuvent être efficacement soignées par des ARN bicaténaires incompatibles, en particulier rI.r(C11-14,U)n, seuls ou en combinaison avec un ou plusieurs des éléments suivants: ganciclovir, coumermycine A1, didésoxyinosine ou ses analogues nucléosides.
Patent EP-0545932-A1 (EP)
Inventor: SANDESARA NIRANJAN BHOGILAL
IPC: H04J3/08
Filed: 1991-05-07
Abstract: On décrit des configurations d'anneaux hybrides logiques pouvant résister à une coupure de voie de communication ou à une panne se produisant dans un noeud. Un anneau logique est formé par une cascade (i) de segments d'anneaux hybrides physiques (301-304), dont chacun est composé d'une paire de voies de communication unidirectionnelles (par exemple, 3011 et 3012) propageant des sous-canaux multiplexés et des noeuds multiplexeurs addition-retrait interposés (311-319), et (ii) de noeuds d'interconnexion (320, 330) terminant les segments. Chaque noeud d'interconnexion achemine un sous-canal d'entrée d'un segment jusqu'à un sous-canal de sortie arrivant sur un autre segment. Chaque segment peut fonctionner à une vitesse de signaux multiplexés différente, de sorte qu'un anneau logique peut être composé de segments fonctionnant à des vitesses différentes. De plus, des sous-canaux d'un segment d'entrée peuvent être alloués à une pluralité de segments de sortie, donnant ainsi une configuration d'anneaux logiques multiples qui peut servir à répartir le trafic de communications entre plusieurs anneaux logiques.
Patent EP-0502206-A1 (EP)
Inventor: TAKAHASHI HIROMASA
IPC: G06F12/08
Filed: 1991-09-18
Abstract: Le système décrit comprend une antémémoire (2) connectée à un processeur (1) et une mémoire principale (3). Le processeur comporte un organe (1A) qui émet un signal de discrimination (S) servant à déterminer si l'accès aux données de l'antémémoire auquel on doit procéder est un accès à adresses continues ou un accès à adresses discontinues et l'antémémoire (2) comporte un organe (2A) servant à gérer les erreurs qui apparaissent dans son fonctionnement sur la base du signal de discrimination émis. Pendant l'accès aux données par adresses discontinues, on procède à une opération de commande pour supprimer les accès superflus à la mémoire principale. Ainsi, tous les inconvénients qui apparaissent au moment d'une défaillance dans le fonctionnement de l'antémémoire sont réduits et, partant l'efficacité du système peut être améliorée dans son ensemble, grâce à un fonctionnement rapide.