baber/WOPTO huggingface dataset:
Patent EP-0393275-A1 (EP)
Inventor: GIVANNIELLO ROCCO
IPC: C01F7/57
Filed: 1989-04-21
Abstract: The invention relates to a process for preparing a basic aluminum halide having the empirical formula: 
Al₂(OH) 6-y X y pnH₂O 
where n has a numerical value of about 0.8 to about 4, X is chlorine, bromine or iodine and y has a numerical value of about 0.7 to about 3, which comprises reacting aluminum metal with a hydrohalogen acid having the formula HX at a temperature of about 50 o C to about 100 o C for about 1 to 100 hours and recovering the basic aluminum compound from the hot solution. The polymer distribution of the product formed, as characterised by size exclusion chromatography, is:
     (a) 100% of the polymers are found in Bands II, III and IV, with substantially no part of the product found in Band I, and   (b) Band III contains at least 25% of the polymer.   
     Also described is a method for preparing an aluminum zirconium hydroxy halide glycinate complex having the empirical formula: 
(Al₂(OH) 6-y X y ) a (ZrO(OH) x Cl 2-x ) b Neutral Amino Acid 
  wherein x has a numerical value from 0 to 1.5, y has a numerical value from 0.7 to 3.0, X is chlorine, bromine or iodine and a and b are selected so that the Al/Zr atomic ratio is about 2.0 to about 8.0, which comprises reacting an aqueous solution of an aluminum halide as described above with an aqueous solution comprising a 20-55% solution of zirconyl hydroxychloride having the empirical formula: 
 ZrO(OH)     x     Cl     2-x     
wherein x has a numerical value of from 0 to 1.5, and a neutral amino acid which is included in either the aluminum halide solution or the zirconyl hydroxychloride solution. The two solutions are mixed at a temperature of from 50 to 100 o C for a time period of less than two hours to form a complex of the two components and the amino acid. The complex is then spray-dried to a powder having a polymer distribution as characterised by the size exclusion chromatography test of:
     a) a peak height ratio of peak 4 to peak 3 of 0.5 to 1.8:1, and   b) peaks (1+2) of less than 4% of the polymer distribution by weight.
Patent EP-0348141-A1 (EP)
Inventor: KALMANASH MICHAEL
IPC: G02B5/20
Filed: 1989-06-20
Abstract: A high precision optical filter includes a wideband filter element and a cholesteric liquid crystal notch filter element. In one embodiment, a wideband infrared filter (10) blocks infrared wavelengths beginning at a nearly visible corner wavelength and a cholesteric liquid crystal filter (12) blocks transmission of infrared wavelengths in a precise narrow band that includes the corner wavelength and that extends down to visible wavelengths. The liquid crystal filter may include a polymer for maintaining maximum reflectivity of the filter near the corner wavelength over an anticipated operating temperature range. The combined optical filter may be fabricated by depositing a matched pair of liquid crystal cholesteric films (15, 20) on a glass infrared filter element (10). In another embodiment, an optical filter according to the invention forms an eyepiece in a night vision goggles assembly for blocking visible light. The filter may also be mounted on a display device to block the transmission of undesirable infrared emissions at the source.
Patent EP-0366250-A1 (EP)
Inventor: GROSS ALLEN E
IPC: H04M11/06
Filed: 1989-09-13
Abstract: A modem (10) capable of three modes of operation; a normal mode, a reduced power mode responsive to a control signal from a function controller (34) within the modem (10), and a further reduced power mode responsive to a control signal from a computer (14). The function controller (34) monitors activity within the modem (10) and applies or removes power transparently as required to exit or enter the first reduced power mode. The control signal from the computer (14) enables the modem to enter or exit the further reduced power mode, in which no modem functions are available.
Patent EP-0380884-A1 (EP)
Title: A security post
Inventor: HIGGINSON BARRY
IPC: B60D1/60
Filed: 1989-12-22
Abstract: A retractable post device, e.g. to be located within an entry to control vehicular access, comprises a vertical tubular member (10) installed below ground with its upper end generally level with the surface and having a hinged lid (14). A post (17) is slidable within the tubular member (10) and is lockable in a raised and in a lower position by means of a lock(19)-controlled handle (18) rotatable to locate a locking bar in one of two vertically spaced slots (15, 16) provided in the tubular member (10). Capping members, through which a chain or like flexible barrier element can be passed, may be lockably attached to the tops of a plurality of spaced posts (17) in their raised position. 
     The top of the post (17) may comprise a towing ball to which the towing hitch of a caravan or trailer can be locked.
Patent EP-0334724-A1 (EP)
Inventor: DEAUMAUTIS CHANTAL BENDIX FRAN
IPC: F16D65/14
Filed: 1989-03-15
Abstract: The invention relates to an actuating mechanism for a drum brake, controlled by a wedge (20), comprising a fixed body (16), two opposite pistons (14, 15) sliding in the body (16) and interacting with facing ends (9, 10) of two segments (2, 3) carrying linings, a wedge (20) which can move in the body in a direction (22) transverse to the axis of the pistons and is provided with two inclined surfaces (27, 28) interacting with the pistons (14, 15), characterised in that the wedge comprises, on either side of the said inclined surfaces (27, 28), two extension pieces (29, 30) with parallel faces (31, 32) perpendicular to the axis of the pistons, and in that the body (16) comprises two guide grooves (33, 34) perpendicular to the axis of the pistons, the two extension pieces (29, 30) being accommodated in sliding fashion in the said guide grooves. <IMAGE>
Patent EP-0353124-A1 (EP)
Inventor: LEBACQ PHILIPPE
IPC: C12Q1/68
Filed: 1989-07-12
Abstract: The invention relates to a process for labelling a nucleic acid in a nucleic probe comprising a nucleic-probe sequence suitable for hybridising with a nucleic-complementary target sequence, in which the labelling of the said nucleic acid is carried out by chemical bridging with a disclosing system to permit a subsequent detection of the hybrid thus formed. The disclosing system is based on the guanine or thymine groups of a modified single-strand nucleic acid which is by itself incapable of hybridising with the nucleic-target sequence and which is attached to the nucleic-probe sequence by ligation, covalent chemical bonding or by hydrogen bonds. <IMAGE>
Patent EP-0329628-A1 (EP)
Inventor: TSURUMI KAZUNORI
IPC: B01J23/40
Filed: 1989-02-17
Abstract: Process for producing a supported metal catalyst in which ions are reduced to the corresponding metals with a weak reducing agent which contains a sulfur atom.
Patent EP-0398985-A1 (EP)
Inventor: LETTINGTON ALAN HAROLD
IPC: C23C14/06
Filed: 1989-01-19
Abstract: Un matériau transparent à des longueurs d'ondes infrarouges de 3 à 5 et de 8 à 14 mum se compose ZrN, YN, CeN, TLN, ou EuN. On peut utiliser le matériau comme matériau autoporteur ou comme revêtement sur des substrates tels que des matériaux transparents infrarouges, par exemple Ge, ZnSe, As2S3, As2Se3, des matériaux optiquement transparents, par exemple du verre de sodium, ou des surfaces réfléchissantes, par exemple Al ou des surfaces argentées. Pour certains substrats, par exemple Ge, on peut utiliser une mince couche de liaison par exemple de 10 à 1000 angstroms, afin d'améliorer l'adhérence. Les couches de liaison peuvent être Ge, Si, GeXC1-x, SiXC1-x (0 < x < 1). On peut produire la couche par vaporisation dans une chambre de décharge luminescente utilisant des gaz Ar et N.
Patent EP-0371094-A1 (EP)
Inventor: DEL SIGNORE JAMES RICHARD II
IPC: H02P7/29
Filed: 1989-02-21
Abstract: Un système numérique de commande de moteur comporte une bascule et un loquet (20, 24) recevant des données d'entraînement du circuit moteur provenant d'un microprocesseur, un compteur (34, 36) permettant de compter jusqu'à une valeur prédéterminée représentant la durée totale d'une impulsion d'entraînement du moteur, un comparateur (26, 28) servant à comparer la valeur incrémentielle du compteur avec les données de commande du circuit moteur stockées dans le loquet (24) pour produire un signal de modulation d'impulsions en largeur, une porte d'entraînement (48) commandée en partie par ledit signal de modulation d'impulsions en largeur pour obtenir un signal d'entraînement du moteur et une porte de freinage (50) pour obtenir un signal de freinage du moteur. Des circuits de retard (56) produisent des retards dans les signaux d'entraînement et de freinage afin d'éviter un chevauchement possible de ces signaux, qui pourrait entraîner des pointes de tension nuisibles. Un circuit de décalage (42, 44) retarde le signal de modulation d'impulsions en largeur pour supprimer le bruit causé par les transitions d'état dans le comparateur (26, 28).
Patent EP-0457758-A1 (EP)
Title: Tissue plasminogen activator having zymogenic or fibrin specific properties.
Inventor: ANDERSON STEPHEN
IPC: C07K14/47
Filed: 1989-08-29
Abstract: Tissue plasminogen activator (t-PA) zymogens and variants are prepared, including a fibrinolytically active variant of t-PA that has an amino acid alteration at a site within the protease domain of t-PA as compared with the corresponding wild-type t-PA, which alteration renders the variant zymogenic in the presence of plasmin-degraded fibrinogen, and/or fibrin (or plasma clot) specific, as compared to the corresponding wild-type t-PA. DNA sequences can be prepared that encode the zymogens and variants, as well as expression vectors incorporating the DNA sequences, and host cells transformed with the expression vectors. The zymogens and variants may be used in a pharmaceutical preparation to treat a vascular disease or condition or to prevent fibrin deposition or adhesion formation or reformation in mammals.
Patent EP-0438437-A1 (EP)
Inventor: WILMS ELMAR
IPC: C11D3/12
Filed: 1989-09-25
Abstract: Le séchage par pulvérisation permet de fabriquer des produits à lessive ou des produits d'addition pour lessives sous forme particulaire, comportant des silicates lamellaires en tant qu'assouplissants textiles. Le procédé est le suivant: on pulvérise une suspension aqueuse d'au moins une partie des constituants du produit à lessive et on insuffle les silicates lamellaires à fines particules dans le cône de projection. Par séchage au moyen de gaz chauffés que l'on dirige sur le produit de la pulvérisation, soit en courant direct, soit, de préférence, en contre-courant, on obtient des produits à lessive ou des produits d'addition pour lessives séchés par pulvérisation contenant des silicates lamellaires, qui ne perdent rien de leur pouvoir assouplissant en cours de traitement.
Patent EP-0447594-A1 (EP)
Inventor: JOHNSON TIMOTHY WALTER
IPC: C08K7/04
Filed: 1990-03-23
Abstract: Poly(arylene sulfide)/long carbon fiber composites containing small amounts of added crack inhibiting agent such as polyethylene have reduced levels of microcracking. The polyethylene can be introduced as a finely divided powder in a slurry prepreg process or can be compounded with the poly(arylene sulfide) and extruded as a film for stacking with carbon fabric.
Patent EP-0393522-A1 (EP)
Inventor: KIMURA MITSUO C O TECHNICAL RE
IPC: B23K35/30
Filed: 1990-04-12
Abstract: A pipeline and steel pipe having superior resistance to carbon dioxide corrosion and suitable for transporting crude oil, natural gas and the like containing carbon dioxide. The pipeline includes in combination, pipe sections including a base metal having a composition containing not more than 0.25 wt% of C, from 0.01 to 0.50 wt% of Si; from 0.1 to 2.0 wt% of Mn; not more than 0.03 wt% of P; not more than 0.01 wt% of S; from 0.25 to 1.0 wt% of Cr; from 0.01 to 0.10 wt% of Aℓ, and the balance substantially Fe and inevitable impurities, and a weld metal connecting the pipe sections together having a Cr content ranging between a value which is 0.2 wt% smaller than the Cr content of the base metal and a value which is 1.0 wt% greater than the Cr content of the base metal. 
     The method of the invention includes circumferential welding for connecting steel pipes together by gas-metal arc welding using a welding wire containing Cr and Ti in such amounts as to meet the condition of: 
Cr wt% + 3 x Ti wt% ≦ 2.4 wt% wherein, Cr wt% and Ti wt% respectively represent the contents of Cr and Ti of the welding wire in wt%.
Patent EP-0397204-A1 (EP)
Inventor: PRASAD RAVI
IPC: B01D53/86
Filed: 1990-05-11
Abstract: High purity nitrogen from an air separation membrane/deoxo system is dried in a membrane dryer unit preferably operated with a countercurrent flow path in the membrane bundle. Drying is enhanced by the use of purge gas on the permeate side of the membrane dryer unit, with feed air, product nitrogen or waste gas from the air separation membrane system being used as purge gas.
Patent EP-0415022-A1 (EP)
Inventor: OKUI KAORU
IPC: F01L1/053
Filed: 1990-06-27
Abstract: The present invention relates to an internal combustion engine for automotive vehicles comprising a cylinder block (7) and a cylinder head (11), said engine being disposed transversely in an engine compartment with the crankshaft (6) extending perpendicularly to the traveling direction of the vehicle, wherein a water pump drive shaft (121) for driving a water pump (120) is rotatably supported on a forwardly facing front side of the cylinder block in parallel to the crankshaft and the water pump is mounted within the extent of the crankshaft facing to a radiator.
Patent EP-0423458-A1 (EP)
Inventor: CAPELLE GERD DIPL-ING
IPC: B29C48/92
Filed: 1990-08-18
Abstract: In an extrusion device of the type which has a screw rotating in a housing and which has a feed section in which a feed roller, cooperating with the screw, is provided, a stripper blade is used to remove the fed material from the feed roller. The present invention provides a method and an apparatus for maintaining the net force acting on the stripper blade to direct it towards the feed roller constant. To achieve this, the force of the fed material which acts in a direction tending to move the feed roller and the extrusion screw apart is measured. An opposing force is applied to the stripper blade in dependence upon the magnitude of the measured force. By so doing, the net force directing the stripper blade towards the feed roller is maintained constant.
Patent EP-0425889-A1 (EP)
Inventor: YAMAGUCHI NOBUYUKI C O TAKASAG
IPC: F04D29/18
Filed: 1990-10-16
Abstract: The known rotor blade of axial-flow machines is improved. The improvement resides in a novel configuration of the respective blades in the rotor. The leading edge of the tip end portion of each blade tilts forwards to the upstream side, and also advances in the direction of rotation. In the tip end portion, between the tip end surface and a cross-section displaced from the tip end surface towards the central portion by 1/2 of a chord length, the configuration of the leading edge of the tip end portion is such that the angle S of skew direction of the leading edge of the tip end portion in the direc­tion of rotation and the effective skew amount ϑ s  eff in the direction of the lead­ing edge of the tip end portion tilting forwards to the upstream side fall in a particular region in a diagram of S vs. ϑ s  eff delimited by specific 4 points A, B, C and D determined through experiments.
Patent EP-0426106-A1 (EP)
Inventor: IWASAKI KAZUHITO
IPC: H01J29/20
Filed: 1990-10-30
Abstract: A method for preparing a phosphor of the formula: 
Ln₂O₂S:Ln′ 
wherein Ln is at least one element selected from the group consisting of Gd, Y, Lu and La, and Ln′ is at least one element selected from the group consisting of Eu, Tb, Sm and Pr, which comprises adding to Ln₂O₃ and Ln′₂O₃ a flux containing boron oxide and a sulfiding agent, followed by baking.
Patent EP-0405956-A1 (EP)
Inventor: GRACEY BENJAMIN PATRICK
IPC: B01J23/72
Filed: 1990-06-27
Abstract: This invention relates to a process for the catalytic hydrogenation of alpha-hydroxy ketones to the corresponding alcohol in a heterogeneous liquid phase reaction medium which contains a carboxylic acid. The carboxylic acid may be a simple carboxylic acid or a hydroxy carboxylic acid. 
     The presence of the carboxylic acid improves both the yield of and selectivity to the alcohol product.
Patent EP-0408261-A1 (EP)
Inventor: NOURSHARGH NOORALLAH
IPC: G02B6/28
Filed: 1990-07-06
Abstract: An integrated optic waveguide directional coupler comprising two parallel, adjacent, identical waveguides (G1,G2) whose lateral spacing is zero for an interaction length (L) of from 20 to 800 um, the waveguides diverging from both ends of the interaction length.
Patent EP-0418056-A1 (EP)
Inventor: DOIG THOMAS C O TRI-STATE OIL
IPC: E21B33/10
Filed: 1990-09-12
Abstract: A patch for oil-well casing has a metal-to-metal seal formed by a seal ring (20) forced against a casing stub (10) by a tapered face (42) on a seal body (12). The seal ring (20) has internal annular ribs (52) which are plastically deformed when the seal is set. The material of the seal ring (20) is chosen to give suitable strength and ductility for such deformation, a suitable material being a low alloy Cr-Ni-Mo steel with a carbon content about 0.2%.
Patent EP-0418095-A1 (EP)
Inventor: WONG JOHN
IPC: A61B17/06
Filed: 1990-09-14
Abstract: A needle (10) having three fluted edges (12a, 12b, 12c), all of the same angular size. The needle (10) presents a five sided (12, 14, 16, 22, 24) cross-section at a tapered end (11). This results in easier tissue penetration, reduced cross-sectional needle area, better wound opening area performance, and minimized tissue distortion. In an alternate embodiment, the flat surface (112) from which the taper (111) is formed is on the inside of the needle (110) so that the outer fluted edges (112a, 112b, 112c) are formed outside that configuration.
Patent EP-0482251-A1 (EP)
Inventor: BASIC JOHN N SR
IPC: F23G5/16
Filed: 1990-10-15
Abstract: An incinerator system includes: a main chamber (32); double reburn tunnels (41,42); an excitor (134,158) within a reburn tunnel; a grate (234) near the incinerator's inlet (231) to permit the drying and initial combustion of refuse, and an ash scoop (278). The use of dual reburn tunnels (41,42), along with a damper (69,70) that permits the closure of at least one of them, permits the efficient and environmentally acceptable utilization of the main incinerator chamber (32) even with minimal refuse contained there. With less refuse, only one reburn unit (41,42) operates; it will still have sufficient heat and throughput to maintain, with minimal auxiliary fuel, the temperature needed for complete combustion. An excitor (134,158), or solid stationary object placed within the reburn tunnel (41,42), permits the retention and reflection of the heat generated by the burning to assure complete combustion of all hydrocarbons within the reburn unit. Additionally, the air utilized in the reburn unit may enter through the excitor for efficient distribution and concomitant combustion.
Patent EP-0380416-A1 (EP)
Inventor: BOURGEOIS CHRISTIAN
IPC: A47J27/21
Filed: 1990-01-24
Abstract: The electric kettle comprises a water container (1) closed by a lid (2), this container comprising an electric heating element (3) fixed to the bottom (4) of this container. 
<??>The container (1) comprises a pipe (14) for the passage of steam extending substantially over the entire height of the container and emerging at its lower section opposite the temperature-sensitive element (15) of the temperature limiter (12). 
<??>Application to automatic electric kettles. 
<IMAGE>
Patent EP-0396459-A1 (EP)
Inventor: PERSELLO JACQUES
IPC: C01B33/154
Filed: 1990-04-27
Abstract: Silica capable of being employed in particular in dentifrice compositions and compatible especially with organic amino compounds. The silica of the invention is characterised in that it results in an aqueous suspension whose pH varies according to defined equations, depending on its concentration and its electrical conductivity.
Patent EP-0413623-A1 (EP)
Inventor: DONY DOMINIQUE
IPC: F16C11/06
Filed: 1990-08-02
Abstract: Ball-socket comprising a body which has a cavity (4) for holding a ball (1) and carries an elastic C-shaped ring (10) whose ends reach into the channel (5), through which the ball is to be inserted, via oblique slots (13), in order to come into contact with the ball and prevent it from falling out. The ends of the ring are bent back on themselves through approximately 180 DEG  and come into contact with the ball at the bends (24). The backwardly-bent portions (25) act as anchors on the wall of the channel (5) or of the slot (13). <IMAGE>
Patent EP-0464085-A1 (EP)
Inventor: BERGHELLA ROCCO
IPC: B63H3/00
Filed: 1990-03-19
Abstract: Le réglage du pas, dans une hélice à variation de pas utilisant une prise par engrenage planétaire entre un moyeu à pignon (1-3) claveté sur l'arbre d'entraînement (2) et des pignons planétaires (5) placés à la base des pales (4) de l'hélice, lesquelles sont montées rotatives dans des trous ménagés dans la paroi d'un carter (6) du moyeu, peut être facilement effectué manuellement grâce àl'enregistrement de la position angulaire relative d'une seconde partie (7) du carter par rapport à une première partie (6) du carter dans lequel est logé l'engrenage planétaire. On effectue l'enregistrement du pas en exerçant une force tendant à séparer la seconde partie (7) du carter de la première partie (6) contre la résistance exerçée par un ressort de retour de poussée (7), sur une distance suffisante pour désengager un couplage (12-13) entre la seconde partie (7) et la première partie (6) du carter ou le moyeu de pignon (1-3), entraînant ainsi en rotation la seconde partie (7) désengagée par rapport à la première partie (6) du carter, avant de libérer la poussée, entraînant ainsi l'engagement des deux parties dans une position angulaire relative modifiée. Ainsi, les butées placées sur la trajectoire d'une pièce cintrée traînante (8) reliée solidement au moyeu (1) de l'hélice, qui sont essentiellement formées sur la paroi interne de la seconde partie du carter, modifient leur position angulaire relative autour de la pièce cintrée (8), modifiant ainsi l'orientation limite adoptée par les pales (4) lors de la rotation de l'arbre d'entraînement (2). Des éléments résilients sont utilisés entre les surfaces d'aboutpour empêcher leur déformation.
Patent EP-0483202-A1 (EP)
Title: Coin testing device.
Inventor: MEEKS ALAN MICHAEL GEORGE KING
IPC: G07D5/00
Filed: 1990-07-03
Abstract: A coin testing device comprising two parts (2, 4) which in an operating, closed, condition of the device define between them a narrow space (6) in which coins travel edgewise, and one or more coin sensor elements (12, 12', 14, 14', 16, 16') mounted on at least one of the parts, the two parts being capable of relative movement apart from each other for access to the space between them, characterised in that the two parts are provided with location-defining  features (20, 20', 22, 22', 24, 24') at three positions which are spaced apart to form a triangle, that when the two parts are being brought together from their apart position they are sufficiently displaceable relative to each other to be able to adopt final closed positions determined only by contact between the location-defining features, and that means (28, 56) is provided for urging the parts towards each other at a position within said triangle. Accurate location of the two parts relative to each other is achieved despite manufacturing tolerances.
Patent EP-0489106-A1 (EP)
Inventor: JARRETT MARTIN ROY
IPC: B21C23/01
Filed: 1990-09-18
Abstract: Un lingot en métal extrudable, notamment un alliage d'Al est conique au niveau de son extrémité arrière. Le lingot est comprimé longitudinalement de sorte que le métal de l'extrémité conique est refoulé transversalement. Le lingot comprimé est extrudé à chaud. Le refoulement améliore la ténacité à la rupture de l'extrémité arrière de l'extrusion, ce qui est utile dans des extrusions longues pour l'industrie aéronautique.