baber/WOPTO huggingface dataset:
Patent EP-0009354-A1 (EP)
Inventor: KOBAYASHI KAZUYUKI
IPC: H03K6/04
Filed: 1979-09-06
Abstract: A waveform shaping circuit which has large hysteresis loop characteristics and which is operated as a Schmitt trigger circuit comprises several impedance elements (14a, ... 14n) and several reference voltage source units (15a, ... 15n). By appropriately selecting the number n of the MOS transistors (15a, ... 15n) the hysteresis loop voltage n·V THA  can be determined (V THA  = MOS transistor threshold voltage). The changes in the state of a third MOS transistor (13) consequent upon changes in the states of a first and a second MOS transistor (11, 12) result in a hysteresis effect while permitting a high input impedance and a low output impedance to be obtained. The circuit which shapes an input signal into an output signal having a rectangular waveform is suited for being manufactured as a large scale integrated circuit.
Patent EP-0011990-A1 (EP)
Inventor: CANINO LAWRENCE S
IPC: G11B21/10
Filed: 1979-11-22
Abstract: A servo control system for maintaining an information detection device, such as a light beam, centered on a moving information track, such as a spiral recording track on a video disc. The system of the invention includes a dither signal generator (60), a bandpass filter (68) for deriving an inter- mediatesignal indicative of the effect of dither on the detected signal derived from the information track, and switching circuitry for deriving an error signal from the intermediate signal and the polarity of the dithersignal. In one embodiment of the invention, the switching circuitry includes an inverter (72), and a switch (74) for selecting either the intermediate signal or the inverted intermediate signal, in accordance with the polarity of the dither signal. The error signal thus derived is low-pass filtered and has a positive value when thecenter position of the beam moves to one side of the track, and a negative value when the center position ofthe beam moves to the other side. In an alternate embodiment, a pulse generator provides two trains of pulses occurring at the positive and negative peaks of the dither signal, respectively, and the pulse trains are employed to control two sample-to-hold circuits, respectively supplied with the intermediate signal and its inverse.
Patent EP-0003932-A1 (EP)
Title: Compositions de polyesters saturés réticulables pour peinture en poudre à surface mate et/ou satinée et procédé pour la préparation de cette peinture
Inventor: BERNELIN DANIEL
IPC: C09D5/03
Filed: 1979-02-15
Abstract: L'invention concerne des compositions saturées réticulables pour peinture en poudre fournissant un feuil de peinture à surface non brillante. Les compositions comprennent un premier système de résine/réticulant qui, dans un rapport stoechiométrique des fonctions réactives, donne au spectrométre mécanique une courbe dont la partie rectiligne a une pente comprise entre 0,5.10<5> et 10<6> dynes/cm²/minute et un deuxième système de résine/réticulant qui dans un rapport réticulant/résine compris entre 1,5 et 4 fois le rapport stoechiométrique donne au spectrométre mécanique une courbe dont la partie rectiligne a une pente inférieure à 10<4> dynes/cm²/minute. Application à des peintures pour métal.
Patent EP-0019880-A1 (EP)
Inventor: MIYAHARA JUNJI C O FUJI PHOTO
IPC: C09K11/67
Filed: 1980-05-23
Abstract: Sintering of a rare earth element activated divalent metal fluorohalide phosphor represented by the formula… M<II>FX:yLn… wherein M<II> is at least one divalent metal selected from the group consisting of Ba, Ca, Sr, Mg, Zn and Cd; Ln is at least one rare earth element selected from the group consisting of Eu, Tb, Ce, Tm, Dy, Pr, Ho, Nd, Yb, Er, Sm and Gd; X is at least one halogen selected from the group consisting of Cl, Br and I; and y is a number satisfying the condition of O < y </= 0.2 can be prevented by adding to the raw material mixture of the phosphor at least one compound selected from the group consisting of… a) the first subgroup consisting of BeO, MgO, CaO, SrO, BaO, ZnO, Al2O3, Y2O3, La2O3, In2O3, SiO2, TiO2, ZrO2, GeO2, SnO2, Nb2O5, Ta2O5 and ThO2, and… b) the second subgroup consisting of compounds of Be, Mg, Ca, Sr, Ba, Zn, Al, Y, La, In, Si, Ti, Zr, Ge, Sn, Nb, Ta and Th which are easily alterable to the above-mentioned respective metal oxide at a high temperature. …<??>The compound added to the raw material mixture remains in the phosphor as the above-mentioned metal oxide after firing, and improves the luminance of emission, the powder fluidity and the afterglow property of the phosphor.
Patent EP-0023047-A1 (EP)
Inventor: KAWACHI SHOJI
IPC: C08L7/00
Filed: 1980-07-22
Abstract: A process for preparation of filler-containing polytetrafluoroethylene fine powder by coagulating polytetrafluoroethylene together with at least one filler selected from the group consisting of polyimide resins, polyamide-imide resins, polyamide resins and carbon fiber powders from their aqueous dispersion, characterized in that a water-insoluble organic liquid having a boiling point of from 30 to 150°C and a surface tension of not more than 35 dyne/cm at 20°C is added to the aqueous dispersion under agitation at any stage from the start to the end of the coagulation (B).
Patent EP-0029108-A1 (EP)
Inventor: DOMER JOSEF ING GRAD
IPC: H04B17/40
Filed: 1980-10-06
Abstract: 1. A process for address-free (symbolic) fault location by means of a loop closure in a communication transmission link for the transmission of digital communication signals from a locating end station via at least one intermediate regenerator which regenerates and/or amplifies the transmission signals in both directions of transmission and which contains a loop closure switch which serves to connect the output of the regenerator for one direction of transmission to the input of the regenerator for the opposite direction and further contains a change-over switch which connects the input of the regenerator of the opposite direction to the connected loop or to the ouptut of the transmission link of the opposite direction, wherein the locating end station transmits one single locating signal during the entire fault locating process, characterized in that commencing from the operating state, the locating signal transmitted periodically contains a code of short duration, that following a recognition time (T1) all the intermediate regenerators which receive this locating signal assume a preparation state in which a state counter (ZZ) is released and these intermediate regenerators emit a locating signal which has been modified in such a manner that the code which is still contained therein can no longer be recognised as a code by a receiving intermediate regenerator and the latter remains in the equalizer control zone and in the synchronisation zone of the phase control loop, that the intermediate regenerators which have been switched into the preparation state and which receive the modified locating signal switch back to the operating state following a hold time which corresponds approximately to the recognition time (T1), and that at the end of the hold time, in the event of an interruption in the transmission of the locating signal for a step-on time (T2) which is short in comparison to the recognition- and hold time, the intermediate regenerator which has remained in the preparation state is switched into the loop closure state and the input of the regenerator for the opposite direction is cut off from its preceding signal path, and in addition the unchanged locating signal is transmitted to the intermediate regenerator which follows in the locating direction, the state counter (ZZ) is switched on, and the switched loop closure is retained for the duration of the unmodified locating signal, which exceeds the recognition time (T1), that in the event of a further change in the locating signal for the step-on time (T2) the state counter (ZZ) in the intermediate regenerator with loop closure is switched into an end position, the loop closure in this intermediate regenerator is discontinued, and the locating signal is transmitted with its code unchanged to the intermediate regenerator with follows in the locating direction and this intermediate regenerator is switched into the loop closure state.
Patent EP-0033370-A1 (EP)
Inventor: STRUB FRITZ
IPC: B01D37/02
Filed: 1980-11-20
Abstract: 1. A method of operation of a settling-filter-installation comprising a tank filter with a central pipe arranged vertically in the tank and being rotable by a drive motor and with a plural number of filter elements mounted one upon the other to the central pipe and being shaped as circular disc-like hollow bodies arranged coaxially to the axis of the central pipe and connected, with their hollow spaces, with the interior of the central pipe and provided on their upper flat sides with filter surfaces, in which method a fluid to be treated in the settling-filter-installation is led into the tank and reaches there through the filter surfaces the hollow spaces of the filter elements and flows off from there over the central pipe and a filter aid is admixed to the fluid before leading the fluid into the tank and settles, together with the constituent parts of the fluid to be filtered out of or extracted from the fluid, on the filter surfaces in form of a settling layer, characterized in that, for achieving settling layers on the filter elements with essentially constant layer thickness from the center to the periphery of the filter elements or for avoiding a forming of bulging thickenings of the settling layers in the peripheral ranges of the filter elements, the drive motor for rotating the central pipe and the filter elements mounted thereon is switched on in predetermined time intervals for a short time over a length of time being smaller than 1 % of the respectively preceding time interval and thereby thickenings of the settling layers in the peripheral ranges of the filter elements formed in the respectively preceeding time interval are removed.
Patent EP-0030729-A1 (EP)
Inventor: OTT LOTHAR
IPC: B29C49/56
Filed: 1980-12-15
Abstract: The disclosure deals with a clamping device for molds used in blow molding of hollow plastic articles having two halves (1A,1 B) of the mold for forming the sides of the hollow plastic article and a bottom part, wherein the halves of the mold can be moved away from each other. The clamping device is characterized in that during the opening of the mold the halves of the mold are moved away from each other in a longitudinal direction to said hollow plastic article and, at least partially simultaneously, in a perpendicular direction to said article.
Patent EP-0018753-A1 (EP)
Inventor: WILKINSON PETER
IPC: C25D3/62
Filed: 1980-04-17
Abstract: Electrodeposition of a hard, bright, pore-free ductile gold alloy having a pink coloration, useful for decorative purposes, is effected using an aqueous cyanide-free electroplating bath essentially comprising:
     (a) from 4 to 20 g/l of gold,   (b) from 0.1 to 3.0 g/l of copper,   (c) from 0.2 to 5.0 of palladium,   (d) from 5 to 200 g/l of free sulphite ion,   (e) from 0 to 150 g/l of one or more buffering agents and/or conducting salts,   (f) from 0.001 to 0.5 g/l of a brightening element selected from arsenic, antimony and thallium,   (g) from 0.01 to 5.0 g/l of a surface active agent, and   (h) water.     
The bath has a pH in the range from 7 to 11.5, preferably about 9.5 and electrodeposition of the pink alloy can be carried out at a cathode current density of from 0.1 to 1.5 amp/dm 2  and a temperature of40 to 80°C, preferably with moderate agitation of the cathode during the electroplating process. The pink alloy will normally contain from 2 to 8 parts by weight copper, from 2 to 6 parts by weight palladium and the balance gold.
     Such a bath is less prone to the colour stability and pollution problems encountered with conventional electroplating baths for producing pink gold electrodeposits.
Patent EP-0020104-A1 (EP)
Inventor: COLE HENRY WILLIAM
IPC: G01S13/76
Filed: 1980-05-23
Abstract: A secondary surveillance radar is provided with means for reducing the effect of undesirable reflections on the interrogation pulses transmitted by the radar and the replies received in response to the interrogations. in addition to a directional antenna (2) a further omnidirectional antenna (3) is provided and the energy of certain of the interrogation pulses are shared between the two antennas (2, 3) in such a manner as to enhance suppression of replies from aircraft which are located at angles away from the boresight of the directional antenna (2).
Patent EP-0021665-A1 (EP)
Inventor: MATSUNAGA FUJIHISA
IPC: C07B61/00
Filed: 1980-06-05
Abstract: It is known to produe an aromaticaicohol by the catalytic hydrogenation of at least one tertiary peroxy compound selected from tertiary aromatic hydroperoxides and tertiary aromatic peroxides in the presence of a palladium catalyst in a solvent to form the corresponding aromatic alcohol. 
     Known palladium catalysts tend, however, to lose their activity too quickly and the amounts of re-usable palladium recovered after the hydrogenation reaction are lower than is desirable. 
     By using a lower aliphatic alcohol solvent and palladium catalyst having a palladium metal surface area, determined by the CO chemisorption method, of up to 200 m 2 /g.Pd these problems are mitigated or overcome, and the desired aromatic alcohol is obtained at high selectivity and in high yield.
Patent EP-0028106-A1 (EP)
Inventor: WEEKS BRIAN
IPC: B29C65/00
Filed: 1980-10-17
Abstract: Surfaces of a blend of (1) unvulcanised chlorosulphonated polyethylene and/or chlorinated polyethylene, (2) a bituminous petroleum derivative of softening point in excess of 100°C and an asphaltene content in excess of 25% by weight, and (3) a non-interfering anti-blocking agent are joined by radio frequency dielectric welding.
Patent EP-0022729-A1 (EP)
Inventor: ROBERT JEAN-PAUL
IPC: H01H33/34
Filed: 1980-07-15
Abstract: 1. Hydraulically-actuated operating system of a jack associated with a switching operation mechanism of a high tension circuit breaker for closing and opening of the contacts, said device including : - an accumulator (56) filled with oil under pressure, - a lower pressure sump (72) for the leakage of the jack (15) oil when the tripping occurs, - an hydraulic poppet valve (10) to selectively connect the jack (15), either to the accumulator (56) for closure and hold of the contacts in switch-off position, or to the sump (72) for venting when the tripping occurs, - supply (58) and back-flow (70) ducts for the connection of the poppet valve to the accumulator (56) and to the sump (72) respectively, - a fixed body (12) equipped with a first seat (40) located in close proximity to a leakage port (68) of a back-flow duct (70), and with a second seat (48) located in close proximity to an inlet port (54) of the supply duct (58), the two seats (40, 48) being shifted from each other by a predetermined axial gap, - and a propelling unit (14, 200), capable of moving the poppet valve between the two seats (40, 48) of said gap to ensure closure or tripping of the circuit breaker, said poppet valve (10) comprising a closing member (28) capable of sliding in a reaming (32) of the body (12), characterized in that the closing member (28) of the poppet valve (10) is stable in the two farthest positions of limit closure and tripping, and is formed by an hollow cylinder (30) comprising : - a first supporting face (38) at one of the cylinder (30) ends being brought into stable engagement in limit closure against the first seat (40) disposed between the back-flow duct (70) and the jack, (15) duct (62a), - a second supporting face (42) at the opposite end of the cylinder (30) cooperating in stable position of limit tripping with the second seat (48) located between the supply duct (58) and the propelling unit (14, 200), the last one being mechanically coupled to the cylinder (30) on the side of said second supporting face (42), - and an inner duct (62b) opening at the two ends of the cylinder (30) by opposite apertures, each showing a size lower than the corresponding seat (40, 48) one.
Patent EP-0024968-A1 (EP)
Inventor: ABBES CLAUDE
IPC: F16B7/04
Filed: 1980-07-30
Abstract: L'invention concerne un raccord autoverrouillable comprenant deux embouts (16,22) fixés à deux parties de circuit à raccorder, et des demi-coquilles (18,24) présentant des surfaces tronconiques internes (54) qui coopèrent avec des surfaces tronconiques externes (36) formées sur les embouts pour assurer le serrage du raccord. 
     Des lames de ressort (28) portées par l'une des demi-coquilles sont munies de trous (62) dans lesquels viennent se loger des pions (60) portés par l'autre demicoquille, pour assurer le verrouillage du raccord, et chaque demi-coquille est rendue solidaire de l'un des embouts. 
     Application à la réalisation d'embouts pouvant être serrés à distance.
Patent EP-0027392-A1 (EP)
Inventor: LOMBARD CLAUDE
IPC: G01F1/7088
Filed: 1980-09-10
Abstract: - Capteur de mesure de vitesse d'un gaz par temps de vol d'ions comportant un couplage (7, 8, 9a) entre l'organe de vannage (17) du gaz dont on veut mesurer la vitesse et l'une des électrodes (3) servant à la mesure du temps de vol à l'intérieur de la canalisation (1) délimitant l'écoulement gazeux. - utilisé à la mesure de la vitesse de l'écoulement gazeux à l'entrée des cylindres d'un moteur à combustion interne.
Patent EP-0014666-A1 (EP)
Inventor: MARGERIT PAUL
IPC: B65G13/071
Filed: 1980-01-09
Abstract: 1. Friction roller for a conveyor comprising driven rollers, of the type composed of a shaft (4) keyed to rotate in a frame (3), of a roller (2a) and a driving device (5), provided with at least one sprocket wheel (6), mounted to rotate freely on the shaft (4), of a friction lining (27) interposed between one of the end faces of the roller and the opposing face of the driving device (5) and means for regulation the pressing force of the lining comprising a stop member (32) integral with this shaft and transmitting to the roller (2) an adjustable longitudinal thrust, characterized in that the shaft (4) is keyed to rotate at each of its ends in the frame by flat portions (4a) giving it a freedom of translation and has mechanical and dimensional characteristics enabling it to bend in order to increase locally the pressing force of its end face against the friction lining (27).
Patent EP-0025453-A1 (EP)
Inventor: SAVAGE SAM L
IPC: A63F9/10
Filed: 1980-10-08
Abstract: Un jeu de patience a plusieurs mises en oeuvres utilisant des elements chantournes d'emboitement de formes et de tailles identiques (12). Puisque ni la forme ni la taille ne fournissent d'indications quant a la position, ce jeu presente une difficulte accrue. Dans un premier mode de realisation, les elements en mosaique sont formes dans la silhouette d'un lezard. Ils portent des parties d'un dessin (par exemple, une image) (14) sur un des cotes et presentent des rayures de lezard (12G, 12H, 12I) sur l'autre cote afin de permettre son utilisation soit comme un jouet en mosaique (lezard) soit comme un jeu de patience (cote de l'image). Dans une seconde mise en oeuvre, l'image comprend des sous-unites d'image (14A, 14B, etc.) (tels qu'une chaise dans l'image d'une chambre) qui peuvent etre inseres dans differentes positions du champ de l'image formee par le jeu de patience. Ceci donne a un jeu de patience ayant un nombre de solutions differentes. Un troisieme mode d'execution est analogue au second mais utilise une bordure en ligne droite (24). Les pieces du jeu ne sont pas toutes de formes et de tailles identiques quoiqu'un grand nombre puissent l'etre, et plusieurs des pieces de bordure peuvent meme etre inserees en un certain nombre de positions le long du bord. Ce troisieme mode de realisation peut aussi utiliser des sous-unites d'image amovibles dans le champ de l'image. Dans un quatrieme mode de realisation, un ou plusieurs sous-jeux (313, 404) peuvent etre imbriques pour former un plus grand jeu de patience (602) tel qu'un tableau mural.
Patent EP-0046749-A1 (EP)
Inventor: PETERS KENNETH
IPC: H01M10/34
Filed: 1980-05-08
Abstract: Dans une batterie d'accumulateurs au plomb, le separateur est un electrolyte et un materiau fibreux compressible permeable aux gaz ayant un taux d'absorption de l'electrolyte d'au moins 100% et un volume d'electrolyte d'au moins 0,8 (X + Y) ou X est le volume total des pores des separateurs a l'etat sec et Y est le volume total des pores du materiau d'electrode actif a l'etat sec completement charge, la batterie, au moins a l'etat totalement charge, n'ayant aucun electrolyte non absorbe. La recombinaison des gaz au moins aux vitesses de charge ne depassant pas C/20 est realisee pour les lampes de tete de mineur, des batteries d'avions et de voitures.
Patent EP-0039443-A1 (EP)
Inventor: STEINGRAF PETER
IPC: A61B5/00
Filed: 1981-04-22
Abstract: In a device for cooling areas or parts of the body consisting essentially of a layer or bandage through which heat transport medium flows, a cooling system and measuring and regulating devices for the control of the heat transport, there are provided devices (7, 8, 20) for the measurement of the temperature and/or of the heat transferred away from the area of the body being treated. The transfer away of heat is controllable as a function of a reference temperature in such a manner that specifically only the excess quantity of heat is transferred away. The cooling is automatically deactivatable, as soon as the heat generation at the treated body area or the quantity of heat transferred away has declined to a reference value or target value. The reference value or target value can be determined by means of an additional temperature measurement electrode (22) which can be applied to an equivalent, but healthy part of the body. <IMAGE>
Patent EP-0040793-A1 (EP)
Inventor: ISHIKAWA MASAYUKI
IPC: C07D239/96
Filed: 1981-05-19
Abstract: A 5,6,7-substituted-2,4 (1H,3H)-quinazolinedione compound of the formula (I),
     wherein R 1 , R 2 , R 3 , A and B as defined in claim 1 and its acid addition salt; and a vasodilating and hypotensive composition containing the aforesaid compound.
Patent EP-0048886-A1 (EP)
Inventor: SCHEROWSKY GUNTHER DR
IPC: C09B1/16
Filed: 1981-09-15
Abstract: Der Farbstoff hat die allgemeine Formel <IMAGE> mit R¹, R³, R<4>, R<6> = H, OH, OCH3, NH2, NHCH3, NO2; <IMAGE> (R<7> = H, Alkyl, Cycloalkyl, Alkoxy, Alkylmercapto, Amino, Alkylamino, Dialkylamino, Nitro, Cyano, Halogen); <IMAGE> CHO, COOR<9>,CH2-OR<9> (R<8> = H, Alkyl, Cycloalkyl, Alkoxy, Alkylmercapto, Amino, Alkylamino, Dialkylamino, Nitro, Cyano, Halogen; R<9> = H, Alkyl) und entweder R¹, R<4> = H, OH, NH2, NHCH3, NO2, OCH3, wobei wenigstens einer der beiden Reste ein NH2 oder Ein NHCH3 ist; R³ = R<6> = H oder R³, R<6> = H, OH, NH2, NHCH3, NO, OCH3, wobei wenigstens einer der beiden Reste ein NH2 oder ein NHCH3 ist, R¹ = R<4> = H. Besonders günstig ist die Verbindung 1,5-Diamino-6-(4-butylphenylimino-methyl)anthrachinon-2-carbaldehyd. Farbstoffe der genannten Formel ergeben zusammen mit geeigneten gelben und blauen Farbstoffen unbunte Gemische. Beispiel: 1,5-Diamino-2,6-di(phenylimino-methyl)anthrachinon/1,5-Dihydroxy-2-methoxyphenyl-anthrachinon/1,5-diamino-4,8-dihydroxy-3,7-di(4-methoxyphenyl)anthrachinon. Der Flüssigkristall findet vor allem bei absorptiven Flüssigkristallanzeigen Verwendung.
Patent EP-0043625-A1 (EP)
Inventor: BOS TEUNIS MARINUS
IPC: C08L1/14
Filed: 1981-07-02
Abstract: Coating composition, particularly car refinish, which can be readily sprayed, has good levelling properties and surface gloss, and exhibits low dust attraction. The binder comprises
 [1] 10-60 parts b.w. of a polyacrylate having an acid number of 0-15 and a weight average molecular weight of 10,000-60,000,
 [2] 30-75 parts b.w. of an acrylated alkyd resin resulting from the polymerisation of a mixture of 20-80% b.w. of an acrylate monomer and 80-20% b.w. of an olefinically unsaturated alkyd resin having a weight average molecular weight of 500-1500 and an iodine number of 20-70, and
 [3] 5-45 parts b.w. of a cellulose ester, the sum of said basic components totaling 100 parts b.w. 
<??>The cellulose ester used may be cellulose acetobutyrate.