baber/WOPTO huggingface dataset:
Patent EP-0537375-A1 (EP)
Inventor: WATANABE YOSHITANE
IPC: C01B33/148
Filed: 1991-10-15
Abstract: A method of preparing a stable aqueous silica sol, which comprises the following steps (a) to (h):
     (a) an aqueous solution of a impure water-soluble alkali metal silicate is brought into contact with a cation-exchange resin so as to form an aqueous solution of an active silicic acid having an SiO₂ concentration of from 1 to 6 % by weight and a pH value of from 2 to 4;   (b) a strong acid is added to the solution to adjust its pH value to from 0 to 2.0 ; solution is kept at a temperature between 0°C and 100°C for a period of from 0.1 to 120 hours;   (c) the solution is brought into contact with a cation-exchange resin, and then with an anion-exchange resin to form a substantially pure solution which has an SiO₂ concentration of from 1 to 6 % by weight and a pH value of from 2 to 5;   (d) the solution is fed into an aqueous solution of an alkali metal silicate or hydroxide while said resulted liquid by the feeding is maintained at a temperature of from 60 to 150° C under stirring throughout the feeding;   (e) the solution is kept at a temperature of from 60 to 150°C with stirring, so as to form a stable aqueous silica sol having a mean particle size of from 10 to 30 millimicrons;   (f) the water in the sol is removed through a microporous membrane until a stable aqueous sol having an SiO₂ concentration of from 30 to 50 % by weight is formed;   (g) the sol is brought into contact with a cation-exchange resin, and thereafter with an anion-exchange resin to thereby form an acidic aqueous silica sol which is substantially free from any other polyvalent metal oxides than silica; and   (h) ammonia is added to the sol in order that the sol may have a pH value of from 8 to 10.5 to thereby form a stable highly pure aqueous silica sol having an SiO₂ concentration of from 30 to 50 % by weight and a mean particle size of from 10 to 30 millimicrons.
Patent EP-0487905-A1 (EP)
Inventor: VOGEL FRIEDRICH
IPC: F16K3/02
Filed: 1991-10-25
Abstract: A shut-off valve having two housing halves (14) which enclose a through-flow opening (18) and are connected to one another, partially resting against one another, in a contact plane in the edge region, at least one of said housing halves having an inner section, which is set back from the contact plane, for holding the slide plate (16), characterised by a U-shaped groove (22) which surrounds this inner set-back section and extends into this housing half from the plane of the set-back section, and whose outer boundary wall extends beyond this plane as far as the contact plane of the edge regions, and by a profiled seal which is arranged in this groove and whose web projects beyond the edge of the groove towards the slide plate.
Patent EP-0483726-A1 (EP)
Inventor: NEUHAUS FRIEDRICH
IPC: A45C13/30
Filed: 1991-10-28
Abstract: The present invention relates to a tubular belt woven in one piece and having a soft interlining, especially a saddle belt or carrying belt. According to the invention, the interlining (3) is likewise woven in one piece together with the tube (1, 2), in such a way that a common weft yarn (4) runs cyclically and successively through one tube half (1), at least once through the interlining (3) and through the second tube half (2). <IMAGE>
Patent EP-0496049-A1 (EP)
Inventor: KOCH MAX DIPL-ING
IPC: B65H51/14
Filed: 1991-11-14
Abstract: With this improvement to the device for feeding a cable into an automatic cable processor, it is possible to move normal cables and cables of reduced wall thickness (18) at high speeds through the drive surfaces (3.1,8.1) of two drive belts (3,8), applied against each other, of two belt drives (1,2). By the separation of a drive roller (12) driven synchronously with the belt drives (1,2) from the measurement drive roller (21) of the cable length measurement device (22), it is made possible to vary the diameter and hence the peripheral speed of this drive roller (12). Thus a tension can be constantly applied to the cable (18) between the belt drives (1,2) and the drive roller (12) corresponding to the running direction of the cable (18), preventing piling up of the cable in this region and a possible lateral emergence of the cable from the belt drives (1,2), and ensuring an accurate length measurement for the cable sections. <IMAGE>
Patent EP-0442560-A1 (EP)
Title: Display device
Inventor: HUISMAN FREDERIKUS ROELOF JOHA
IPC: G02F1/1365
Filed: 1991-02-05
Abstract: By arranging a Schottky diode which is insensitive to light in parallel with a photodiode which is sensitive to grazing light, a switching element is obtained which, when used in, for example an LCD, has a current-voltage characteristic which is comparable with that of a zener diode. A picture display device provided with these switching elements can then be driven in a reset mode.
Patent EP-0475472-A1 (EP)
Inventor: SCHIPPER DIRK JAN
IPC: F16L27/087
Filed: 1991-07-25
Abstract: A device for sealingly transporting medium, for instance lubricating oil, from a source to a receiving station (8) rotatably movable relative thereto, which device comprises: 
a source (2) for the medium; and 
a rotation bearing assembly (3) comprising: 
at least one rotation bearing; 
means (1) for receiving the medium from the source, transporting thereof through the rotation bearing assembly in at least partially radial direction and for feeding the medium to the receiving station; and 
mechanical sealing means (13,14).
Patent EP-0439290-A1 (EP)
Inventor: ISHII TOSHIYUKI
IPC: G11B27/032
Filed: 1991-01-18
Abstract: In a recording and reproducing apparatus, a management database recording region is provided in recording tracks. Management data recorded the management database recording regions has various management information, such as erase permission or inhibition information, information indicating whether or not the program recorded in the recording track was reproduced, external unit control data for controlling cooperating apparatuses, subscribed data of program being allocated to the management data corresponding to the program, a recorded flag for diverting record reserving information corresponding to the program to record information and a character display information for interacting with user.
Patent EP-0449566-A1 (EP)
Inventor: KAMIMURA TADASHI
IPC: C22C33/02
Filed: 1991-03-26
Abstract: A partially hardened sintered body such as a rocker arm comprises powder forming a main body and a capsule-like powder composite (1) disposed adjacent to the powder and composed of core particles (2) made of a material harder than the powder and covering particles (3) covering the core particles and made of the same material as the powder. The powder and the capsule-like powder composite (1) are solidified into the partially hardened sintered body.
Patent EP-0454409-A1 (EP)
Inventor: OKAYAMA HIROAKI
IPC: H04N9/07
Filed: 1991-04-23
Abstract: A phase grating optical low-pass filter having wavelength selectivity comprises a plurality of layers (8,9) which are the same in refractive index at a certain wavelength and different from one another in refractive index dispersion, and has a configuration to generate a phase difference at a boundary of the layers. 
Use : Low-pass filter for a single tube color camera, with enhanced spacial frequency in the green wavelength band.
Patent EP-0470729-A1 (EP)
Inventor: OMOTE ATSUSHI
IPC: G03G5/06
Filed: 1991-07-25
Abstract: A method for making photosensitive materials of the positive charge type which are useful in electrophotography is described. In the method, X-type and/or τ -type phthalocyanine is at least partially dissolved in a solvent along with a resin binder or in a solution of the resin binder by which good photosensitive characteristics are obtained. The photosensitive material obtained by the method may be of a single-layer or a double-layer type. A photosensitive material having an improved ozone resistance is also disclosed. The material makes use of a resin binder having vinyl phenol units therein and is resistant to ozone.
Patent EP-0474513-A1 (EP)
Inventor: SAGER FRANK D
IPC: B65H45/109
Filed: 1991-09-06
Abstract: Apparatus for fan folding a continuous web of paper (12) having transverse fan fold lines (18) spaced at a predetermined distance (20) from each other along its length, including feeding means (34) for feeding said continuous web of paper (12) to a folding area (30); a pivotally mounted chute (48); and drive means (50) for oscillating said chute (48) about its pivotal point to cause a stack (14) of fan folds to be formed as said continuous web of paper (12) passes through said chute (48). The apparatus further includes sensing means (58) for generating a first signal representing the velocity of said continuous web of paper (12) as it is moved towards said folding area (30); counter means (62) for generating a second signal representing a preselected fan fold length (16); and control means (60) responsive to said first and second signals for operating said drive means (50) to determine the rate and the arc length (B) of the oscillations of said chute (48).
Patent EP-0482897-A1 (EP)
Inventor: SUGIMOTO MAKOTO -BAN -GOU
IPC: C04B35/584
Filed: 1991-10-22
Abstract: In a sintered ceramic body used for a spark plug insulator, the ceramic body has silicon nitride (Si₃N₄), aluminun nitride (AlN) and alumina (Al₂O₃). Reduced weight percentage of the silicon nitride (Si₃N₄), aluminum nitride (AlN) and alumina (Al₂O₃) in the sintered ceramic body falls within an area surrounded by points A (91.5, 1.5, 7.0), B (91.5, 2.5, 6.0), C (91.5, 3.5, 5.0), F (83.0, 7.0, 10.0), J (66.0, 14.0, 20.0), O (50.0, 20.5, 29.0), T (41.0, 24.0, 35.0), S (41.0, 17.0, 42.0), R (41.0, 10.0, 49.0), M (50.0, 8.5, 41.5), H (66.0, 6.0, 28.0), D (83.0, 3.0, 14.0) and A (91.5, 1.5, 7.0) at a three-component diagram. As one sintering additive, yttrium oxide (Y₂O₃) is selected, weight percentage of the sintering aditive ranges from 0.3 % to 15.0 % of the total weight of the silicon nitride (Si₃N₄), aluminun nitride (AlN) and alumina (Al₂O₃).
Patent EP-0484115-A1 (EP)
Inventor: PERKINS ROGER JOHNSON
IPC: C25D5/50
Filed: 1991-10-30
Abstract: A method for applying a thin layer of uncoated abrasive particles (20) to the tip of a turbine blade. A single layer of particles (20) and a thin layer of metal (36) are first deposited on the tip (14). A metal matrix comprising a fine alloying powder and a metal is then deposited over the first thin metal layer and the particles using co-electrodeposition. The turbine blade is then thermally treated to homogenize the thin layer and the codeposited layer containing alloying powders and metal.
Patent EP-0457661-A1 (EP)
Inventor: IACOVELLA ROCCO
IPC: G08B13/16
Filed: 1991-05-13
Abstract: The present invention relates to an alarm system comprising a volumetric ultrasound detector intended for motor vehicles. The alarm system control circuit comprises a means for adapting the width (t1) of a square wave pulse used to activate the ultrasound emission circuit in such a way as to minimise power consumption. In the same way, the square wave pulse (R) for activating a reception circuit falls within the evanescent wave, so that the transducers operate alternately. Furthermore, the control circuit auto-adapts the alarm system to the acoustic conditions of the volume under surveillance by, in particular, adjusting the width (t1) of the square wave pulse used to activate the ultrasound emission circuit. Application to motor vehicle alarm systems. <IMAGE>
Patent EP-0463908-A1 (EP)
Inventor: PIROT FRANCOIS-XAVIER
IPC: G11B5/49
Filed: 1991-06-11
Abstract: The invention relates to a magnetic recording device of the type comprising a plurality of magnetic heads (M1 to M9) forming a matrix network, each magnetic head being arranged at the intersection of a column conductor (X1 to X3) with a row conductor (Y1 to Y3). According to the invention, each magnetic head (M1 to M9) is energised via a switching element (I1 to I9). This arrangement enables the magnetic heads (M1 to M9) to be controlled by a matrix type addressing, whilst avoiding the problems related to the spread in the characteristics of the magnetic heads. <IMAGE>
Patent EP-0534035-A1 (EP)
Title: Fotografisches Kopiergerät und Betriebsverfahren
Inventor: FRICK BEAT DR
IPC: G03B27/46
Filed: 1991-09-26
Abstract: In einem fotografischen Kopiergerät zur Verarbeitung von belichtetem fotografischem Film werden in einer Messstation neben Messdaten über die farbliche Zusammensetzung des Negativs auch Spleissereignisse und Perforationsereignisse und deren Auftreten auf dem Film registriert. Die registrierten Daten werden an eine Rechen- und Auswerteeinheit weitergeleitet, und dort in Form einer Tabelle (Ereignistabelle) gespeichert. In einer oder in mehreren repositionierenden Bearbeitungsstationen wird jeweils das Auftreten von Spleissereignissen und von Perforationsereignissen auf dem Film registriert. Diese Daten werden in der Rechen- und Auswerteeinheit als Tabelle (Positionstabelle) gespeichert. Zur Repositionierung des Filmes in jeder Bearbeitungsstation werden die Tabellen korreliert und festgestellte Abweichungen bei der Repositionierung des Filmes berücksichtigt. Zur Detektion der Perforations- und der Spleissereignisse sind die Messstation (7) und die Bearbeitungsstationen (8,9) mit Perforations- und Spleissdetektoren (72, 73 bzw. 82, 83 bzw. 92, 93) ausgestattet. <IMAGE>
Patent EP-0454644-A1 (EP)
Inventor: LARSSON BENGT
IPC: F16K17/04
Filed: 1991-04-23
Abstract: An arrangement in liquid pumps, especially petrol pumps, comprising a valve system with the functions of a non-return valve, a pressure relief valve and a ventilating valve, is connected in the delivery line between a liquid pump and a petrol delivery nozzle. The valve system includes a piston and cylinder assembly (18, 19) whose cylinder (18) has an open end communicating with the delivery line (17) and whose piston (19), adapted to move back and forth through the open cylinder end, has a tapered end portion (20, 21). This portion is facing the upstream side of the delivery line passage, and the piston is biased so as to occupy a position in which the tapered piston end portion, with a cross-sectional area thereof which is smaller than its largest cross-sectional area, closes said upstream side by engaging a seat (9′). The taper of the end portion is such that in said position, said largest cross-sectional area is spaced from the seat, as seen in the direction of movement of the piston.
Patent EP-0466887-A1 (EP)
Title: Process for preparing pyrimidinetrione derivatives.
Inventor: SIEGFRIED BERNARD
IPC: C07F9/6512
Filed: 1991-02-05
Abstract: PCT No. PCT/EP91/00253 Sec. 371 Date Oct. 30, 1991 Sec. 102(e) Date Oct. 30, 1991 PCT Filed Feb. 5, 1991 PCT Pub. No. WO91/12244 PCT Pub. Date Aug. 22, 1991.This invention relates to a process for preparation of pyrimidinetriones. It also relates to novel N-dihydroxyphosphoryl pyrimidinetrione derivatives which may be useful as water-soluble prodrugs of certain pyrimidinetrione compounds.
Patent EP-0466934-A1 (EP)
Inventor: FUKUOKA SHINICHIRO
IPC: G06K7/00
Filed: 1991-01-30
Abstract: A data carrier wherein a shift register is used as a memory. When writing a datum, the signal having the duty factor corresponding to the written data is written into a shift register through a resonance circuit to store the data in the register, which hereafter retains the data in a circulation mode. The data stored in the shift register is read out in accordance with an identification code from outside. Thus, the data carrier of a small capacity is simply constituted.
Patent EP-0518942-A1 (EP)
Inventor: SHABRANG MANI
IPC: H01B1/12
Filed: 1991-03-05
Abstract: Un dispositif électrochromique (100) incorpore un matériau électrochromique (13) et une couche conductrice d'ions de polymère à acide perfluorosulfonique (14) intercalée entre une électrode fonctionnelle (12) et une contre-électrode (15), caractérisée par le fait que la couche de polymère à acide perfluorosulfonique (14) comprend un tronc principal sensiblement fluoré auquel sont attachés des groupes suspendus récurrents représentés par la formule -O-(CFR'f)b-(CFRf)a-SO3-, où a=0-3, b=0-3, a+b= au moins 1, et Rf et R'f sont indépendamment sélectionnés, à partir d'un halogène et d'un groupe alkyle sensiblement fluoré ayant un ou plus d'atomes de carbone. Un exemple d'un tel polymère est le copolymère de tétrafluoroéthylène et 1,1,2,2-tétrafluoro-2-((trifluoroéthényl)oxy) éthane acide sulfonique ayant un poids équivalent d'environ 800. L'avantage principal de cette invention est que le dispositif électrochromique s'assombrit suffisamment pour être utile quand le dispositif est actionné à haute température, comme on peut en rencontrer dans un toit solaire électrochromique d'une voiture un jour de soleil dans un pays à climat chaud.
Patent EP-0521065-A1 (EP)
Inventor: SHORR ROBERT
IPC: G01N27/447
Filed: 1991-03-19
Abstract: Milieu électrophorétique à base de polymères présentant des structures nouvelles. On forme les polymères par polymérisation de monomères d'acrylamide, tels que N-méthylolacrylamide, à l'aide d'agents de réticulation ou d'agents comonomères tels que le diacrylate de tétraéthylène et le méthyléther de bisacrylamide.
Patent EP-0520015-A1 (EP)
Inventor: ZANETTI JOHN M
IPC: A61B5/352
Filed: 1991-03-14
Abstract: Procédé et appareil pour surveiller de manière non invasive les battements du coeur d'un patient, pour détecter et visualiser sur écran les variations des battements du coeur induites par l'ischémie et qui sont le signe d'une maladie des artères coronaires.
Patent EP-0474839-A1 (EP)
Inventor: SAMS BERNARD
IPC: A61M5/315
Filed: 1991-03-28
Abstract: Dispositif d'administration possédant une enveloppe (11) qui peut se relier à un réservoir (14) pour administer un liquide tel qu'un composé pharmaceutique injectable. Ce dispositif possède un premier élément fileté (21) fixe et un deuxième élément fileté (22) entourant le premier, ces deux éléments possédant chacun des segments filetés (27 et 29) situés à équidistance de segments non filetés (28) intermédiaires, ce qui provoque la torsion axiale du deuxième élément quand on le fait tourner autour du premier élément, mais aussi son positionnement pour coulisser axialement par rapport au premier élément. Un piston plongeur (23) se trouve en position coulissante à l'intérieur du premier élément (21) et possède une partie (33) qui peut venir en prise dans les filetages du deuxième élément. Une gaine de dosage (53) entoure le deuxième élément et possède des filetages (54) venant en prise avec l'enveloppe du dispositif, cette gaine étant accouplée au deuxième élément pour tourner avec lui. Le dosage s'effectue en éloignant par torsion le deuxième élément (22) d'une butée fixe (25) jusqu'à ce que la gaine (53) indique la quantité dosée nécessaire; le deuxième élément (22) est ensuite ramené à la butée fixe (25) par coulissement axial, le piston plongeur (23) étant poussé vers l'avant pour éjecter le liquide du réservoir.
Patent EP-0522039-A1 (EP)
Inventor: ALEXANDER NICHOLAS JOHN
IPC: A61M5/20
Filed: 1991-03-27
Abstract: Dispositif manuel d'injection d'un liquide (par exemple, un vaccin) ou d'insertion d'un objet (par exemple, un émetteur-récepteur) sous l'épiderme d'un animal, comprenant un support (2) destiné à recevoir une seringue hypodermique traditionnelle (5, 6, 7), un poids (7) (pouvant faire partie du piston situé à l'intérieur de la seringue) servant à agir sur le piston (7) de la seringue et une plaque (3) conçue pour que l'aiguille (6) de la seringue hypodermique perce l'épiderme de l'animal quand on plaque le dispositif sur l'animal et que le dispositif s'arrête brusquement quand la plaque (3) vient en contact contre l'animal, l'impulsion du poids (7) agissant pour pousser le piston (7) dans la seringue et introduire dans l'animal le liquide ou l'objet qu'elle contient.
Patent EP-0521109-A1 (EP)
Inventor: RESCH BRUNO
IPC: B66D1/74
Filed: 1991-03-21
Abstract: Un système de treuil répondant automatiquement à la charge comprend une base (43), un tambour de treuil (14, 110) monté rotatif sur la base, et un arbre moteur rotatif (12, 100) servant à entraîner le tambour du treuil. Au moins deux trains d'engrenages sont montés sur des arbres menés (44, 45, 102, 104, 106) et sont reliés entre l'arbre moteur et le tambour pour faire tourner le tambour en réponse à la rotation de l'arbre moteur. Le premier des deux trains d'engrenages génère une vitesse de tambour différente de celle du deuxième train d'engrenages. Lorsqu'une charge à moment de torsion variable s'exerce sur un des arbres via le tambour, un mécanisme (26) se déplace verticalement par rapport à un des arbres, en réponse aux variations du moment de torsion de la charge. Le mécanisme comprend un système (29, 30) qui permet de mettre en prise un des deux trains d'engrenages dans une première position verticale du mécanisme et qui sert à désengrener le premier train d'engrenages dans une deuxième position verticale pour isoler ledit train d'engrenages et permettre la rotation du tambour par le deuxième train d'engrenages.
Patent EP-0581762-A1 (EP)
Title: Appareil et procede de changement de l'huile dans un moteur a combustion avec rin age optionnel
Inventor: BEDI RAM D
IPC: F01M11/03
Filed: 1991-11-22
Abstract: Une première pompe (30) peut retirer le liquide usé d'un réservoir d'huile et peut optionnellement être utilisée pour introduire un liquide de rinçage à travers le filtre d'huile (16) et le système interne de graissage, pour faire circuler le liquide de rinçage au sein du système interne de graissage et pour retirer le liquide de rinçage usé du réservoir d'huile afin de le vider et de le stocker dans un récipient de stockage externe (26). Une seconde pompe (32) est destinée à introduire de l'huile neuve à partir d'un récipient de stockage externe (22) à travers le filtre d'huile et le système interne de graissage. Optionnellement, une bride de fixation pour filtre d'huile éloigné et vidange (16) fournit un lieu central et facilement accessible au sein du moteur permettant de connecter l'appareil de changement de l'huile et de changer l'élément de filtre d'huile. Un adaptateur pour bouchon de vidange (18) peut être connecté au réservoir d'huile afin de fournir une connexion avec la première pompe (30).
Patent EP-0484483-A1 (EP)
Inventor: STUTZ WILLIAM H JR
IPC: H01R13/52
Filed: 1991-05-03
Abstract: Un connecteur (54) de stimulateur cardiaque à parties multiples comprend un bout de corps moulé (62) avec lequel est solidaire un bloc de connecteurs conducteurs (74), un connecteur d'entrée moulé (70) avec lequel est solidaire un tube conducteur (124) formant un second bloc conducteur s'étendant à partir d'une de ses extrémité, ainsi qu'un contact à ressort cylindrique en anneaux (86) venant au contact de la surface intérieure du tube conducteur (124), et une bague de corps moulée (66) connectant le bout de corps (62) ainsi qu'un connecteur d'entrée (70) au tube (124) reçu dans une gorge (150) se trouvant dans la bague de corps (66). Des joints d'étanchéité (64, 72) complètent l'ensemble à tester (208) avant incorporation dans l'ensemble matriciel de stimulateur cardiaque (210, 212).