baber/WOPTO huggingface dataset:
Patent EP-0014083-A1 (EP)
Inventor: HUGHES KATHLEEN ANNE
IPC: C08F2/10
Filed: 1980-01-21
Abstract: in the preparation of low molecular weight water soluble polymers having a molecular weight of up to about 50,000, monomer comprising (a) at least one of acrylic acid, methacrylic acid, acrylamide, methacrylamide, alkylpolyalkoxyacrylate, al- kylpolyalkoxy methacrylate, N-vinyl pyrollidone, acryloxypropionic acid, methacrolein and acrolein and optionally from about 5 to 50% by weight of the total monomers present of (b) at least one of itaconic acid, maleic acid, fumaric acid, hydroxyethylmethacrylate, hydroxypropylmethacrylate, hydroxyethylacrylate, hydroxypropylacrylate, acrylonitrile, methacrylonitrile, dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate, t-butylaminoethyl acrylate, 4-vinyl pyridine, beta-hydroxyethyldimethylaminoethyl methacrylate salt and t-butylaminoethyl methacrylate, is reacted in an aqueous solution system at a temperature up to the boiling point of said system in the presence of a catalyst system comprising initiator and metal salt wherein the molar ratio of initiator to metal ion is from about 10:1 to about 5000:1, preferably from 10:1 to 150:1, and the initiator is present in an amount of from about 0.5 weight percent to about 35 weight percent based on the weight of monomer present. The catalyst system may also comprise reducing agent wherein the molar ratio of initiator to metal ion is preferably from about 150:1 to about 5000:1 and the molar ratio of initiator to reducing agent is from about 0.5:1 to about 20:1. Polymer prepared by this method, such as polyacrylic acid, may be used as a scale inhibitor.
Patent EP-0018704-A1 (EP)
Inventor: SCHULTZ PETER CHARLES
IPC: C03B37/075
Filed: 1980-02-20
Abstract: A preform is formed by providing a substantially longitudinally continuous core member (10) and affixing it to a starting member (12). Particulate material is applied to the exterior surface of the core member to form an adherent coating (18) having an index of refraction less than that of the core member (10). The starting member (12) and the core member (10) are longitudinally translated while simultaneously applying the adherent coating (18) of particulate material to the core member to form a continuous and substantially homogeneous adherent coating of substantially uniform thickness. The composite so formed is simultaneously or subsequently heated to sinter or consolidate the applied adherent coating thereby forming a solid blank which may be heated to the drawing temperature of the material thereof and drawn to reduce the cross-sectional area thereof forming a substantially continuous optical waveguide, the core member (10) comprising the core while the consolidated coating (18) comprising the cladding of the optical waveguide. The adherent coating (18) may be sintered or consolidated to form a solid blank and thereafter drawn in a separate operation or subsequently drawn as part of a continuing operation. As an alternate, the optical waveguide may be drawn immediately following the sintering or consolidation step employing a single heating of the structure.
Patent EP-0018233-A1 (EP)
Inventor: SLACK IAN DAVID
IPC: D06N7/00
Filed: 1980-04-23
Abstract: The present specification relates to a fire resistant carpet and methods of making them. The use of synthetic fibre in carpet poses a serious hazard in the spread of fire. The present invention provides for a carpet having a backing made of a plastics material which incorporates a flame retardant material. Additionally a foaming agent and/or filler may be incorporated in the plastics coating to provide a resilient backing and/or weight, respectively. 
     To construct such a carpet the plastics material coating is extruded onto the back of the carpet, the plastics material being drawn against and thus bonded to the carpet as the carpet is passed over suction means.
Patent EP-0020028-A1 (EP)
Inventor: GERKEY KENNETH SYLVESTER
IPC: F22B37/02
Filed: 1980-04-30
Abstract: The identity of a cantilevered end effector support member (33) and its angular position on the platform member (29) of a carriage (27) movable along an arm (23) which is rotatable in a plane parallel to a steam generator tubesheet (9), are supplied to a tubesheet servicing machine control system in the form of a discrete pattern of electrical signals which is used to determine the offset required in aligning the end effector (35) with a particular point on the tubesheet. The discrete pattern of electrical signals is generated by at least two sensor elements (59) mounted on one of the members, preferably at different radial distances from the pivot axis of the support member. At least two trigger elements (61) are mounted on the other member in such a pattern as to trigger selected sensor elements to produce the discrete pattern of signals. By increasing the number of sensors and trigger elements, it is possible to provide binary information indicating tool presence, tool identification as well as toll angular position.
Patent EP-0022358-A1 (EP)
Inventor: ICHIKAWA MASARU
IPC: C07C45/49
Filed: 1980-07-03
Abstract: Compounds containing oxygen, hydrogen and carbon having 1 or 2 carbon atoms can be prepared by reacting a gaseous mixture of carbon oxide and hydrogen in the presence of a catalyst composition comprising
     (A) substantially metallic rhodium;   (B) an oxide of a metal of Group IIa, IIIa, IVa or Va of the Periodic Table of short form; and optionally   (C) an element selected from niobium, tantalum, chromium, manganese-and rhenium when the metal oxide (B) is of a metal of Group IIIa, IVa or Va.   
     This catalyst composition is highly efficient under relatively mild reaction conditions and can be prepared easily and inexpensively.
Patent EP-0023824-A1 (EP)
Inventor: KATSUBE HIDEO
IPC: B23H7/06
Filed: 1980-08-01
Abstract: In a wire electrode-type discharge machine (DMAC) a workpiece (12) is machined to a desired shape whilst being moved relatively to a wire electrode (2). 
     To provide for restoration of operation after the wire electrode (2) has broken, arrangement are made so that the position of breakage (CP) is stored in a memory (WME). A machining starting point (SP) is also stored in a memory (WME). The wire electrode (2) is brought from the position of breakage (CP) to the machining starting point (SP) and the wire electrode (2) is returned to its feed system. The wire electrode is then returned to the position of breakage (CP) and machining of the workpiece (12) is resumed.
Patent EP-0028144-A1 (EP)
Inventor: DAVEY GORDON
IPC: F04B39/04
Filed: 1980-10-24
Abstract: A compressor piston (5) reciprocates with small clearance in its cylinder (6) and is driven electromagnetically (13-22). Axial alignment of the piston (5) is maintained by mounting the piston rod (9) on two axially-spaced springs (25), (26) that are relatively flexible axially but stiff radially. The springs (25, 26) may be formed by cutting thin metal discs to spiral form, and an individual spring (25, 26) may comprise a stack of such spirals (27) prevented from interference with each other by spacers (28, 29).
Patent EP-0020721-A1 (EP)
Inventor: TOFFOLON ROGER L
IPC: E04B2/46
Filed: 1980-06-17
Abstract: Element de structure en beton precoule (10) et structure de paroi composite comprenant une pluralite de ces elements empiles verticalement en quinconce. Chaque element (10) comprend une paire de panneaux lateraux espaces lateralement et s'etendant longitudinalement (12). Une paire de bras de liaison s'etendant lateralement sont formes integralement avec les panneaux (12) au niveau de leurs surfaces interieures respectives pour maintenir les panneaux en position relativement fixe. Une liaison par tenon et mortaise (22, 24) entre les elements superposes est prevue, avec une mortaise verticale (22) au fond de chaque bras de liaison (18) et un tenon complementaire se projetant verticalement (24) au sommet de chaque bras. Chacune des mortaises (22) et chacun des tenons (24) definit une paire de surfaces portantes verticales placees en vis-a-vis et espacees lateralement (26, 28) et chaque mortaise et chaque tenon represente approximativement le tiers de la largeur totale de l'element de structure associe (10). L'espacement longitudinal entre les bras de connection (18) represente approximativement deux fois l'espacement longitudinal que chaque bras forme avec l'extremite adjacente des panneaux lateraux (12).
Patent EP-0029044-A1 (EP)
Title: A method of carrying out slip form casting of concrete structures under water and apparatus for carrying out the method.
Inventor: OPEDAL TORLAK
IPC: E02D15/06
Filed: 1980-12-15
Abstract: Method and apparatus for carrying out under water casting of concrete structures by utilization of slip form equipment. The slip form unit (19, 20, 22, 25) is suspended in stays (27) supported in hoisting means (30) mounted on a support construction (2) in above water position, is being sunk down onto the casting site on the sea bottom (50), possibly subsequent to that the sea bottom has been levelled and prepared. One or more supply conveyors, such as tubes (46), are devised from suspension means (45) on the support construction in order to extend down into the slip form (20). The casting tubes are being filled with ready poured concrete. The slip form is hoisted upwards in correspondence with the hardening speed of the poured concrete, simultaneously as suitable quantity of poured concrete mass is supplied to the casting site through the casting tubes. The slip form equipment is suspended in hoisting means mounted on the support construction in such fashion that one can carry out directional guiding and adjustment of the position of the slip form during the casting operation.
Patent EP-0033734-A1 (EP)
Inventor: ALANI SAFWAT DAVID
IPC: A61B10/00
Filed: 1981-02-09
Abstract: Unite d'application utilisee pour effectuer un test epicutane en vue d'eclaircir l'etiologie et le diagnostic d'eczema de contact allergique et pour administrer des substances therapeutiquement actives pour traiter en surface les maladies de la peau, et comprenant un organe porteur (10) qui consiste en plusieurs dispositifs d'application (11) chacun de ces dispositifs recevant une surface d'application (13) pour une substance (14). Le dispositif d'application se compose d'un materiau non-absorbant. Ladite surface d'application est essentiellement situee au meme niveau que la surface adhesive (12) de l'organe porteur et est entouree d'une rainure annulaire. Les unites d'application sont recouvertes d'une couche de couverture (17) qui est pourvue de domes (18) situes au-dessus de chaque dispositif d'application et enferment les substances hermetiquement.
Patent EP-0032936-A1 (EP)
Title: Pressure-sensitive adhesive susceptible to ultraviolet light-induced detackification.
Inventor: BENNETT RICHARD E
IPC: C09J7/02
Filed: 1981-02-09
Abstract: "Release on demand" pressure-sensitive adhesives and tapes which are readily detackifiable by exposure to actinic radiation. The adhesive system has an oxirane ring-bearing component blended thereinto (or preferably reacted therewith) to achieve an adhesive epoxy equivalent value of 400-900, preferably 450-700. The adhesive system also includes an effective amount of ionic photoinitiator capable of promoting the polymerization of oxirane rings.
Patent EP-0032154-A1 (EP)
Inventor: DAVIS WALTER LEE
IPC: H03K3/288
Filed: 1981-02-09
Abstract: Un registre a decalage et circuit bi-stable necessitant moins de regions de micro-plaquettes et ayant une perte de courant considerablement reduite est realise avec des portes logiques (I2L). Chaque cellule (28) du registre comprend quatre portes logiques (10), connectees comme deux bascules binaires R-S, chaque porte consistant en une paire de transistors interclasses (PNP et NPN). Les deux bascules sont excitees alternativement par commutation du courant dans les injecteurs de porte en fonction de la phase du signal d'horloge. L'utilisation d'un nombre reduit de portes avec des interconnexions simplifiees contribue a reduire la region de micro-plaquettes et les pertes de courant.
Patent EP-0055847-A1 (EP)
Inventor: ASANO MAKOTO
IPC: B41M5/136
Filed: 1981-12-23
Abstract: Disclosed is a pressure sensitive recording unit which comprises a single base web sheet and a methine-type dyestuff and an organic oxidizing compound both supported on the single base web sheet, or a combination of first and second base web sheets and the methine-type dyestuff and organic oxidizing compound supported individually on the first and second base web sheets. Such a recording unit includes for example a pressure sensitive recording unit formed in combination of (a) a back-coated topsheet (CB-sheet) making use of microscopic capsules containing a solution obtained by dissolving a methine-type dyestuff in a solvent having a high boiling point and (b) a front-coated undersheet (CF-sheet) carrying an organic oxidizing compound coated thereon. Also disclosed is a pressure sensitive recording unit which includes a base web sheet carrying thereon such a methme-type dyestuff together with a metal ion sequestering agent and/or alkanol amine.
Patent EP-0039970-A1 (EP)
Inventor: DAVIES ROBERT
IPC: H03B9/14
Filed: 1981-05-06
Abstract: In an R.F. oscillator arrangement comprising a modulator (M) and a diode (D), such as a TRAPATT diode, operable to produce pulses ofR.F. energy when d.c. pulses above a critical level are applied to the diode (D), the frequency of oscillation is markedly dependent on the temperature of the diode (D). To reduce variations of the frequency over a wide operating range of ambient temperatures a direct current below the critical level is passed through the diode (D) to heat it. The heating current being controlled by measuring the temperature with device (G), of a heat-sink (N) on which the diode (D) is mounted and which is substantially at ambient temperature, or by measuring the oscillating frequency by means of device (K).
Patent EP-0054994-A1 (EP)
Inventor: ERNI PETER DR
IPC: C01B13/11
Filed: 1981-12-10
Abstract: Das Ozonerzeugungselement, der Röhrenozonisator (1) besteht im wesentlichen aus einem äusseren Metallrohr (3) welches die eine Elektrode bildet und einem in diesem koaxial angeordneten von ihm distanzierten Glasrohr (4) dessen innere Oberfläche mit einer elektrisch leitenden Schicht (5) versehen ist, welche als andere Elektrode dient. Die Ozonbildung erfolgt durch Impulsentladungen, wobei als Schaltelement eine passive, flächige Funkenstrecke (12) mit definierter Ansprechspannung dient. Die Speisung des Röhrenozonisators (1) erfolgt von einer niederfrequenten Stromquelle (7) über einen Hochspannungstransformator (9), an dessen Sekundärwicklung (10) ein Speicherkondensator (11) angeschlossen ist. Es werden eine Reihe von Ausführungsformen vorgeschlagen, bei denen ein Teil bzw. sämtliche Bauelemente des kritischen Impulskreises mit dem Röhrenozonisator (1) eine Baueinheit bilden oder sogar in diesen integriert sind.
Patent EP-0035367-A1 (EP)
Inventor: WALKER JOHN GRAHAM
IPC: B25B25/00
Filed: 1981-02-26
Abstract: A tie gun (1) for applying a flexible tie (16) around a roll or bundle, said tie (16) having an apertured head (17) through which the tail of the tie, after looping around the roll or bundle, is threaded, tensioned and locked in position, the gun incorporating an indexing means (28 to 31) including a rotary drum (31) which advances successive ties, tail forward, into the path of a push rod (11) driven by a trigger (2) actuated, pneumatically operated cylinder/piston (8) so that said push rod (11) performs a rearward stroke during the second part of an operating cycle and in so doing indexes the tie feed rum (31) and simultaneously turns the buckle (17) of an advanced tie (16) into a tail receiving position, thus completing loading of the gun in readiness for the next operating cycle during the first part of which the push rod (11) moves forwardly to push the tail around the roll or bundle to be tied back through the preorien- tated buckle (17) ready for tensioning and locking.
Patent EP-0041823-A1 (EP)
Inventor: GREENHALGH KEITH
IPC: H01H37/00
Filed: 1981-06-03
Abstract: A thermally responsive electric switch including two dimensionally identical, bimetallic, snap-over, part-spherical, thermally responsive actuating elements 9, 11, arranged in a nesting, contacting relationship within the end portion 7 of a housing. The first element 9 changes from a first to a second curvature when its temperature rises above a first predetermined temperature, returning to its first curvature if its temperature falls below a second, lower, predetermined temperature. The second element 11 changes from a first to a second curvature when its temperature rises above a third predetermined temperature higher than the first temperature, and thereafter remains in that curvature. A common force transmitting rod 13 bearing on the uppermost elementll transmits the movement of both elements to a pair of contacts 3 at the other end of the housing, the contacts being in one condition when both plates have the first curvature, and otherwise being in a second condition.
Patent EP-0048173-A1 (EP)
Inventor: ISSHIKI TOMIYA
IPC: C07C67/00
Filed: 1981-09-16
Abstract: Producing vinyl acetate by reacting acetic anhydride with hydrogen in the presence of a catalyst comprising
     (a) a metal belonging to Group VIII of the Periodic Table or a compound of the metal, and       (b) (i) an acidic substance, or   (ii) a halide.
Patent EP-0046443-A1 (EP)
Inventor: CANZEK LUDVIK DR
IPC: G02B17/08
Filed: 1981-08-03
Abstract: Das Objektiv mit Öffnungsverhältnis 1 : 1,2 umfasst eine Frontlinse, eine Hauptspiegellinse, einen Gegenspiegel, der auf dem mittleren Teil der Frontlinse aufgedampft ist und ein Feldlinsensystem. Das Feldlinsensystem bilden der mittlere nicht verspiegelte Teil der Hauptspiegellinse und weitere Linsen, die in unmittelbarer Nähe vor und hinter der Hauptspiegellinse angeordnet sind. Für die Front- und Hauptspiegellinse wird gleiches Glas verwendet, welches gewichtsmäßig leicht, billig und auf chemische Einflüsse wenig empfindlich ist. Die drei aufgeführten Beispiele weisen für den Wellenlängenbereich von 400nm bis 1000nm einen sehr hohen Korrektionszustand auf, womit eine kontrastreiche Abbildung bzw. eine gute Erkennbarkeit eines kontrastarmen Gegenstandes gewährleistet wird. Die erfindungsgemäßen Objektive sind trotz der hohen Leistung von sehr einfachem Aufbau und billiger in der Fabrikation als bekannte Objektive. Sie eignen sich unter anderem für Nachtsichtgeräte mit Bildverstärkerröhren der 1., 2. und 3. Generation.
Patent EP-0057183-A1 (EP)
Inventor: OVERNURY DOUGLAS G
IPC: B27B17/12
Filed: 1980-08-08
Abstract: Une tronconneuse portative mue par un moteur (20) possede un systeme automatique de lubrification (54) comprenant une soupape de commande reglable de l'exterieur (60) qui dose un ecoulement reglable d'huile (69) au travers de la soupape de maniere unidirectionnelle et arrete l'ecoulement lorsque la tronconneuse (20) est arretee. Une pompe d'huile amelioree (58) est pourvue d'un rotor (72) du type a aubes. L'organe reglable (124) de la soupape de commande (60) possede une ouverture longitudinale (130) pour l'ecoulement d'huile (69) au travers de la soupape, vers la barre de guidage (24), et l'ouverture (130) porte de maniere coulissante la tige (144) du clapet de retenue (140) qui assure l'ecoulement unidirectionnel.
Patent EP-0056383-A1 (EP)
Inventor: DOBLER KLAUS
IPC: G01L23/22
Filed: 1981-06-24
Abstract: Le detecteur de la pression d,un milieu comprend un fil (5) dont la resistance varie sous l'effet de la pression. Le fil (5) est dispose dans le milieu sous la forme d'une bobine d'un accordeon ou analogue. De preference, une partie (5a) du fil est a l'abri de la pression. La partie abritee (5a) du fil et la partie (5b) exposee a la pression forment les branches d'un circuit en pont. Pour la mesure de la pression de combustion dans des machines a combustion, des circuits a fil sont places dans la chambre (11) d'une bougie d'allumage ou disposees avec les conducteurs electriques (21) (44) d'une bougie incandescente. Ainsi des pressions de combustion par commande et/ou reglage des systemes d'injection et/ou d'allumage peuvent etre obtenus sans percages supplementaires. Avec d'autres formes d'execution du detecteur de fortes pressions peuvent aussi etre mesurees, par exemple la pression dans une pompe d'injection.
Patent EP-0063269-A1 (EP)
Inventor: EMDE HERBERT DR
IPC: C07C303/08
Filed: 1982-03-31
Abstract: Aromatische Aminosulfonsäuren mit verringertem Gehalt an verfärbenden Nebenprodukten werden erhalten, wenn man aromatische Amine mit einem Sulfonierungsmittel in einem Reaktionsmedium umsetzt, das mindestens teilweise aus Tetramethylensulfon besteht.
Patent EP-0073350-A1 (EP)
Inventor: KUNERT HEINZ DR
IPC: B60J10/248
Filed: 1982-07-30
Abstract: Ein auf dem Randbereich einer Glasscheibe (2) angeordneter Profilrahmen (15) weist, im Querschnitt gesehen, außerhalb des Umfangs der Glasscheibe (2) einen Abschnitt (17) auf, der durch mechanische Krafteinwirkung gezielt plastisch verformbar ist. Auf diese Weise läßt sich eine umrahmte Glasscheibe mit kalibrierten Außenabmessungen herstellen. Durch die gezielte Verformung lassen sich Flächentoleranzen, beispielsweise die Herstellungstoleranzen der Fensteröffnungen von Fahrzeugkarosserien, individuell ausgleichen.
Patent EP-0075863-A1 (EP)
Inventor: AXELROD ROBERT JAY
IPC: C08L51/00
Filed: 1982-09-23
Abstract: The present invention relates to improved, flame retardant thermoplastic compositions of polyphenylene ether and polyalkenyl aromatic resins. Incorporation of an admixture of triarylphosphate and cyclic phosphonate having the formula:
     wherein x = 0 or 1 has been found to provide desirable flame retardance without loss of the important physical properties of the resin blend.
Patent EP-0077989-A1 (EP)
Inventor: HALPAAP REINHARD DR
IPC: C08G18/38
Filed: 1982-10-16
Abstract: Es wird ein Verfahren zur Herstellung von überwiegend linearen Polyurethanen in Lösung, aus A) einem organischen Diisocyanat oder Diisocyanatgemisch, das gegebenenfalls geringe Anteile eines Triisocyanats enthält, B) einer oder mehrerer Polyhydroxyverbindungen, die überwiegend bifunktionell sind, mit Molekulargewichten in der Regel zwischen 400 und 5.000, und C) gegebenenfalls einem oder mehreren Kettenverlängerungsmitteln mit mindestens zwei gegenüber Isocyanatgruppen reaktiven Wasserstoffatomen und mit Miolekulargewichten zwischen 32 und 399, und D) monofunctionellen Kettenabbrechern, unter der Voraussetzung, daß das Verhältnis der Isocyanatgruppen zur Anzahl der gegenüber Isocyanatgruppen reaktiven Wasserstoffatome zwischen 0,9:1 und 1:0,9 liegt, beschrieben, das dadurch gekennzeichnet ist, daß zum Reaktionsgemisch nach Erreichen der erforderlichen Viskosität des gebildeten Polyurethans eine gegenüber Isocyanatgruppen äquivalente oder überschüssige Menge eines monofunktionellen, niedermolekularen Oxims mit einem Molekulargewicht zwischen 73 und 325, vorzugsweise Butanonoxim, als Kettenabbrecher zugegeben wird. Die neuen Kettenabbruchsmittel sind einfache Verbindungen, die einen schnellen Kettenabbruch ergeben und keine störenden Nebenwirkungen bezüglich eines nachträglichen Kenenabbaus haben und sogar - falls gewünscht - eine weitere Aufbaureaktion mit z.B. Diaminen ermöglichen.