baber/WOPTO huggingface dataset:
Patent EP-0003273-A1 (EP)
Title: Dispositif d'alimentation de source lumineuse à semiconducteur
Inventor: MALISSIN ROLAND
IPC: H04B10/07
Filed: 1978-12-27
Abstract: Dispositif d'alimentation de source lumineuse à semiconducteur diodes lasers ou diodes emettrices de lumière LED, dont la puissance est régulée en régime établi une boucle de régulation, comportant un dispositif de commutation constitué par deux portes (10, 20) commandées par un basculeur (40), un générateur de rampe (résistance 12 et capacité 22) dont la sortie est reliée à une première entrée du circuit de commutation (entrée de la porte 10), la sortie de la boucle de régulation étant reliée à la seconde entrée de ce circuit (entrée de la porte 20), l'entrée de commande de ce circuit (entrée du basculeur 40) recevant un signal caractéristique de la puissance émise par la diode (D1). En régime transitoire la diode (D1) est alimentée par la rampe de tension et en régime établi par un signal régulé par la boucle. Le dispositif est applicable, notamment, à l'alimentation de lasers destinés à l'inscription et à la lecture de vidéodisques.
Patent EP-0009310-A1 (EP)
Inventor: BALLARD DENIS GEORGE HAROLD
IPC: C04B30/00
Filed: 1979-08-06
Abstract: A composition comprising vermiculite lamellae (delaminated vermiculite) and one or more solid particulate materials which have a basic reaction in water, especially magnesium oxide. These particulate additives improve the physical properties of vermiculite articles especially the compressive strength and stability to water of foam.
Patent EP-0021156-A1 (EP)
Inventor: FELIX WILLI
IPC: B65H1/00
Filed: 1980-06-04
Abstract: The individual built-together lifting units (6a, 6b, 6c) each have a raisable and lowerable platform (7). Each platform (7) is connected to its own lifting mechanism, which has a drive unit (10a, 10b, 10c) which is arranged above the associated platform (7) and attached to a horizontal carrier (11a, 11b, 11c). To the side of the platforms (7), which are freely accessible from mutually opposing sides, vertical supports (12a, 12b, 12c, 12d) are arranged on which the horizontal carriers (11a, 11b, 11c) are supported. Running in these supports (12a, 12b, 12c, 12d) are threaded spindles (15) which are in engagement with nuts (16) mounted on the platforms (7). In the single support (12b, 12c, 12d) arranged between adjacent platforms (7), two threaded spindles (15) are accommodated one behind the other, of which in each case one is associated with one of the two adjacent platforms (7). At their upper end, the threaded spindles (15) are connected to chain wheels (17) which are driven by the associated drive unit (10a, 10b, 10c) via a chain (18). By virtue of the arrangement of the drive unit (10a, 10b, 10c) above the platform (7), and the accommodation of the threaded spindles (15) in the supports (12a, 12b, 12c, 12d) carrying the horizontal carriers (11a, 11b, 11c), a compact construction in terms of width is obtained. <IMAGE>
Patent EP-0025587-A1 (EP)
Inventor: ROHDE VERNON CARL
IPC: B04B5/04
Filed: 1980-09-10
Abstract: A blood bag (10) is described which aids in maintaining the separation of blood components. This bag (10) is constructed of a flexible plastic, has a conical top leading to an outlet line (28) and internal septa (32) to reduce swirling of the bag's contents during rotor deceleration. The bag (10), is adapted to be placed in a split sleeve (12) prior to placement in the swinging bucket of a centrifuge rotor. A collar (14) is placed over the top of the bag (10) to aid in reducing wrinkles in the bag (10). 
     Methods are described for reducing contamination of separated blood components by reducing bag wrinkles, reducing swirling of the blood fractions during rotor deceleration, and reducing mixing during expression.
Patent EP-0031119-A1 (EP)
Inventor: PHAM QUANG MINH
IPC: H02P3/08
Filed: 1980-12-15
Abstract: Dispositif electronique apte à commander d'une façon entièrement électronique le passage de mode de traction à mode freinage et inversement d'une machine à courant continu à excitation séparée, la marche avant et arrière du moteur ainsi que la réalisation d'une freinage rhéostatique. Le hacheur comporte deux thyristors principaux (T1) et (T2) et un thyristor d'extinction (T3) unique pour les deux thyristors principaux. L'enroulement d'excitation séparée (J) est parcouru dans un sens ou un sens inverse grâce à quatre thyristors (T5) à (T8).
Patent EP-0024208-A1 (EP)
Inventor: PERROLS ROLAND FRANCIS
IPC: B65B7/06
Filed: 1980-08-15
Abstract: The disclosure relates to methods and apparatus for closing a bag mouth of a bag (18) formed from a heat weldable material after filling the bag through the open mouth thereof. In order to support and present the bag mouth forthe closure operation the mouth is supported from within the mouth by flat elements (43) held apart by rams (44) across the mouth to draw the mouth into an elongate form and then the sides of the mouth are pressed together by rams (32) between an elongate heating element (31) and an elongate anvil (37) and the heating element is activated to heat weld the sides of the mouth together to close the mouth.
Patent EP-0028506-A1 (EP)
Inventor: FENTON SYDNEY DESMOND
IPC: A47C31/02
Filed: 1980-10-30
Abstract: An upholstered article such as a car seat is provided with a frame (5) consisting of a pair of closely adjacent tubes (6,7). The tubes (6,7) preferably have a narrow, obstruction free gap between them into which a trim-strip (12) of suitable cross-section can be fitted. A plastics extrusion can be made for use as a trim-strip. 
     The gap and trim-strip can be utilised in a method of fixing the upholstery on the article, the trim-strip (12) being utilized to trap the edges of one or more sheets of covering material (4,9) in the gap.
Patent EP-0033029-A1 (EP)
Inventor: NICHOLAS DAVID MICHAEL
IPC: B01D53/14
Filed: 1980-11-07
Abstract: Method for treating a contaminated gas such as a contaminated natural gas or a synthesis product gas from the partial oxidation of petroleum or coal to concentrate and remove hydrogen sulfide at a reduced energy and capital requirement. Hydrogen sulfide in the contaminated stream is absorbed to form a hydrogen sulfide rich solvent which includes co-absorbed carbon dioxide, which is then removed to prevent dilution of the concentrated hydrogen sulfide formed when the solvent is regenerated. The solvent leaving the hydrogen sulfide absorber (2) is heated before entering a high pressure stripper column (11) wherein the co-absorbed carbon dioxide is stripped from the solvent, preferably by stripping with nitrogen or a portion of the product gas, and the carbon dioxide is recycled to the hydrogen sulfide absorber. The CO 2  stripper is operated at a pressure not substantially below the pressure of the hydrogen sulfide absorber, eliminating the need for large compressors required in conventional methods to recycle the carbon dioxide.
Patent EP-0030452-A1 (EP)
Inventor: LUPTON TREVOR JOHN
IPC: E02B3/12
Filed: 1980-12-03
Abstract: A flexible reinforcing shutter for location under water or over swampy or other terrain comprises co-extensive upper (10) and lower (11) layers joined by a plurality of spaced tubular elements (13). A mattress (21) made from such a shutter, the edges of the layers (10, 11) being joined together and the shutter filled with a concrete or other settable composition (25), reinforces and stabilizes the ground (2) and protects it against erosion and also provides support, for example for a pipeline (26) or for vehicles. The shutter can be made up of a plurality of modular units.
Patent EP-0018259-A1 (EP)
Title: Nouveaux carbonates porteurs de groupes carbonates cycliques, leur procédé de fabrication et leur application à l'extraction de valeurs métalliques à partir de solutions aqueuses
Inventor: BURGARD MICHEL
IPC: C22B3/36
Filed: 1980-04-03
Abstract: L'invention concerne de nouveaux produits industriels de formule générale <IMAGE> un procédé de fabrication de ces produits et leur application en hydrométallurgie. Selon l'invention, R est notamment un groupe alkyle, cycloalkyle, aryle, aralkyle, carboxylate, polyoxyéthylène, polyester et polycarbonate. Le procédé consiste à faire réagir un alcool ou un polyol ROH sur le chloroformiate de carbonyl dioxy-2, 3 propyle, entre -10 et +20°C, en présence d'un accepteur d'acide. Application: les composés selon l'invention sont des agents extractants pour l'hydrométallurgie, pouvant être utilisés en solution diluées.
Patent EP-0023438-A1 (EP)
Inventor: SCHLESSELMAN HAROLD DAVID
IPC: G01N27/04
Filed: 1980-06-20
Abstract: A temperature compensated oxygen sensor has a generally cylindrical first insulator (1) with an axial bore (9) extending therethrough which is counterbored at one end. A second cylindrical insulator (13) is retained in the bore (9) in the first insulator (1) either by a radial inwardly directed flange (5) on the second end of the first insulator (1) or by a radial outwardly directed flange (71) on one end of the second insulator (13) which seats in the counterbore (9) of the first insulator (1). Atitania resistor and a compensating resistor (17, 19) are mounted on the second end of the second insulator (13) by leads (21) extending through longitudinal bores (15) in the second cylindrical insulator (13) and into the counterbore (9) in the first insulator (1). The leads (21) are connected to terminals (25) which are retained in the counterbore (9) either by a chemical bonding agent (31) or by a third cylindrical insulator (29) through which the terminals (25) extend. The third insulator (29) can be secured either by mechanical means and/or by a chemical bonding agent including a glass preform.
Patent EP-0028550-A1 (EP)
Title: Onduleur et générateur statique de signaux comportant un tel onduleur
Inventor: CARNEL ALAIN
IPC: H02J13/00
Filed: 1980-10-06
Abstract: L'invention se rapporte à la production de signaux de courant fort dans les conditions de fréquence et de modulation déterminée. Selon un mode de réalisation, un onduleur triphasé comporte un pont de quartre thyristors par phase. Les thyristors de chaque pont sont branchés de telle sorte que lorsque les thyristors de deux branches opposées sont allumés simultanément, ils produisent un signal à la sortie de l'onduleur de sens opposé au signal correspondant lorsque les thyristors des deux autres branches opposées sont allumés. Les thyristors des branches adjacentes sont commandés en opposition et couplés par une self inductance à deux enroulements assurant par effet de mutuelle l'extinction de l'un d'eux lorsque l'autre s'allume. L'énergie accumulée dans la self inductance au moment de la phase d'extinction est dissipée par effet Joule dans une résistance prévue à cet effet dans une boucle ne contenant pas l'alimentation. Application aux générateurs statiques de télécommande centralisée.
Patent EP-0018322-A1 (EP)
Inventor: AMACHER PAUL
IPC: B03D1/14
Filed: 1980-04-02
Abstract: A vertical column (1), assembled from one or more tubular parts (2), is charged with the liquid to be treated by gases and also with the gases under pressure. Each tubular part (2) of the column (1) contains a hollow spherical funnel (3, 3') which has an electrically conducting surface and an enlarged, rough head area. The sphere (3a) has an inlet opening (4) for the liquid and the gases, which leads into the interior of the sphere (3a). It is positioned approximately tangentially and in a transverse direction relative to the longitudinal axis of the spherical funnel (3, 3'). Its orientation confers the desired flow direction on the liquid entering the sphere (3a). The liquid is split electrolytically-physically or only physically in column (1) and then set in centripetal whirling motion. In this way the liquid is saturated in column (1) with gases to a very high degree, and such saturation to a very high degree persists for several hours. <IMAGE>
Patent EP-0026225-A1 (EP)
Inventor: STOCKFORD WILLIAM F
IPC: B03C3/30
Filed: 1980-10-23
Abstract: Un materiau de filtration non tisse, relativement fin (14) est forme avec des fibres de denier fin ou le materiau (14) presente la caracteristique de developper une charge electrostatique en presence d'un courant d'air sensiblement sec se deplacant a une vitesse d'au moins 200 pieds par minute. Les fibres sont choisies parmi le groupe constitue de polyester, nylon et polypropylene. Une longueur de materiau de filtration. (14) ainsi formee se deplace entre une bobine d'alimentation (12) et une bobine receptrice (16) dans le passage d'air contamine par la fumee de soudage et passant au travers d'une conduite (10). Le materiau de filtration (14) peut passer autour d'une ou de plusieurs bobines de renvoi (18) entre les bobines d'alimentation (12) et de reception (16). Le mouvement du materiau (14) entre la bobine d'alimentation (12) et la bobine receptrice (16) est sensible au depot de contaminants sur le materiau. Le courant d'air mobile provoque le chargement electrostatique du materiau de filtration (14) de telle sorte que le materiau particulaire fin se trouvant dans la fumee de soudage soit soustrait du courant d'air de maniere plus efficace qu'auparavant.
Patent EP-0033349-A1 (EP)
Inventor: SAKAI TAKUO
IPC: C12P19/04
Filed: 1981-02-24
Abstract: Un procede de preparation de pectine utile pour des produits alimentaires, des medicaments, etc., consiste a faire agir de la levure sur un tissu vegetal contenant de la pectine tel que du pericarpe de citron, ladite levure ayant une activite de liberation de pectine a partir des tissus vegetaux et appartenant aux genres Endomyces, Endomycopsis, Saccharomices, Schizosaccharomyces, Pichia, Hansenula, Debaryomyces, Hanseniaspora, Tolulopsis, Candida, ou Kluyveromyces, un milieu de culture de ceux-ci, ou leur produit traite.
Patent EP-0049730-A1 (EP)
Inventor: NAGIRA NORICHIKA
IPC: C25D7/06
Filed: 1981-05-06
Abstract: A surface treatment apparatus for producing a steel strip having an enhanced phosphatizing property, comprises a plurality of guide rolls for moving the strip along a predetermined moving path, a pickling vessel having means for spraying a pickling liquid onto the surface of the strip, a first rinsing vessel having means for spraying water onto the strip surface, an electrolytic treating vessel having an anode and a temperature control means for the electrolytic treating liquid, a second rinsing vessel having means for spraying water onto the strip surface, and means for applying a voltage between an anode and a cathode consisting of a guide roll located beside and close to the electrolytic treating liquid contameo in the electrolytic treating vessel
Patent EP-0041735-A1 (EP)
Inventor: EZZELL BOBBY RAY
IPC: C08F214/18
Filed: 1981-06-10
Abstract: Polymers and the process for producing polymers by the polymerization of at least three monomers wherein at least one monomer is selected from the group consisting of tetrafluoroethylene, trifluoromonochloroethylene, trifluoroethylene, vinylidene fluoride, 1,1-difluoro-2,2-dichloroethylene, 1,1-difluoro-2-chloroethylene, hexafluoropropylene, 1,1,1,3,3-pentafluoropropylene, octafluoroisobutylene ethylene, vinylchloride, trifluoronitrosomethane, perfluoronitrosoethane and alkyl vinyl ether, and at least one other monomer is selected from the group represented by the general formula:  <IMAGE>   and at least one monomer is selected from the group of monomers represented by the general formula:  <IMAGE>  These polymers are useful as ion exchange membranes in electrolytic cells, especially chlor-alkali electrolytic cells. Other uses include solid, strong acid catalyst useful in corrosive environments, electrodialysis and other similar membrane separation processes.
Patent EP-0043984-A1 (EP)
Inventor: HILDEBRAND DIETRICH DR
IPC: D06P3/872
Filed: 1981-07-01
Abstract: In the novel process for the single-bath, single-stage dyeing or printing of blends of cellulose and polyester fibres with reactive and disperse dyes by the continuous method, in particular the thermosol method or the high temperature (HT) steam fixation method, the alkaline padding liquor used for dyeing or the alkaline print paste used for printing contains in addition to customary assistants and solvents a disperse dye, a reactive dye having a fluorotriazinyl and/or fluoropyrimidyl group and also from 0.1 to 25 grams per litre of padding liquor (or from 0.1 to 25 g per kg of print paste) of an acid donor which is effective at the fixation temperature of the dyes used.
Patent EP-0044992-A1 (EP)
Inventor: WETZEL BERND DR DIPL-CHEM
IPC: A61P31/04
Filed: 1981-07-13
Abstract: Novel  beta -lactams of the general formula (1) are disclosed:   <IMAGE>  wherein: R1 represents an aliphatic acyl or alkoxycarbonyl group or the aminocarbonyl group, and X represents the group   <IMAGE> wherein D represents an hydrogen atom; an acetoxy; aminocarbonyloxy; pyridinium; or 4-aminocarbonyl-pyridinium group; or a group -SHet (Het represents, for example, the 1-methyl-tetrazole-5-yl radical), and E represents an hydrogen atom or an in vitro or in vivo readily cleavable protective group, and R represents an hydrogen atom; the cyclopropyl group; a lower hydroxyalkylamino group; an amino; alkyl; or alkenylamino group; a cycloalkylamino group; or a group of the general formula:   <IMAGE> wherein n represents the number 0 or 1, and R3 and R4 represent hydrogen atoms; hydroxy; acetylamino; aminocarbonylamino; nitro; aminocarbonyl; cyano; methylsulfinyl; methylsulfonyl; aminosulfonyl; or methylaminosulfonyl groups. Salts of the compounds (I) with inorganic or organic bases, 3 processes for the preparation of these compounds and pharmaceutical compositions containing these compounds are also described. The compounds of the general formula (I) have additionally an activity against gram-positive and especially against gram-negative bacteria and micro-organisms similar to bacteria; the compounds being distinguished especially by a broad spectrum of activity.
Patent EP-0058241-A1 (EP)
Inventor: THOMANEK ULRICH FRANZ DR
IPC: H04L12/00
Filed: 1981-10-28
Abstract: 1. A method of transmitting data signals (D) and items of signalling information (Sa, Sb) between data terminal devices (DTE) which are connected to one another via exchanges (VSt) of a telecommunications network in which, for the transmission of the data signals (D) and the items of signalling information (Sa, Sb), there are provided data transmission paths (NK) and signalling paths (SK) which are separate from one another, and in which the data transmission paths (NK) can be additionally used to transmit signals (Sa', A, Sb', B) which differ from data signals (D), where the establishment and clearance of connections between data terminal devices (DTE) takes place in that the exchange (VSt) in question is supplied with special items of signalling information (Sa, Sb) via the signalling path (SK), characterised in that during a part of the interval in which a data terminal device (DTE) emits an item of signalling information (Sa) which serves to establish a connection to another data terminal device, via the signalling path (SK), a control signal (Sa') emitted from the aforementioned first data terminal device prior to the data signal emission and serving to actuate the other data terminal device designated for data signal reception, and an acknowledgement signal (A) indicating the actuation of the other data terminal device and transmitted from this other data terminal device to the first data terminal device in order to clear the transmission of data signals (D), are transmitted via the data transmission path (NK) which is to be used for data signal transmission between the two data terminal devices whick are to be connected or are connected to one another, without additional analysis or evaluation in the relevant exchange (VSt).
Patent EP-0041296-A1 (EP)
Inventor: SOOLS FRANSISCUS GUILLAUME PET
IPC: H01J61/36
Filed: 1981-05-26
Abstract: The invention relates to a high-pressure discharge lamp for use in the vertical position, having a tubular ceramic discharge vessel (1), the electrodes (2,3) being connected to current lead-through members (4,5) which have been provided one at each end of the discharge vessel, a first, upper current lead-through member (4) consisting of material which is resistant to attack by halogens and/or halides, for example molybdenum, and a second, lower current lead-through member (5) comprising a hydrogen-permeable material, for example niobium.
Patent EP-0039613-A1 (EP)
Inventor: SEGAL ROBERT MICHAEL
IPC: C04B7/42
Filed: 1981-05-05
Abstract: A Portland-type cement composition having a boron-and halogen-containing component and, as hydraulically settable calcium silicates, about 20-70 percent alphaprime dicalcium silicate (a'-C 2 S) and about 10-50 percent tricalcium silicate C 3 S based upon the weight of the composition.
Patent EP-0055066-A1 (EP)
Inventor: HARDING BRUCE L
IPC: F16K27/00
Filed: 1981-12-15
Abstract: A valve (10) is disclosed for controlling fluid flow through two laterally-spaced openings (16a and 16b) in a surface (14) of a manifold element (12). The valve (10) includes a housing, (20) having a mounting face (24) for mounting against the manifold surface (14), with a pair of laterally-spaced ports (26a and 26b) arranged to communicate with the openings (16a and 16b) in the manifold surface (14). A conduit (28) leads from one of the ports (26a) internally through the valve housing (20) to the other port (26b). A ball element (32) is rotatably arranged in the conduit (28). The ball element (32) has a passageway (40) extending therethrough. The ball element (32) is rotatable between an open position, in which fluid can flow through the conduit (28) via the ball passageway (40), and a closed position, in which fluid flow through the conduit (28) is blocked by the ball element (32).
Patent EP-0054529-A1 (EP)
Inventor: SVENSSON LENNART
IPC: E02D3/074
Filed: 1981-12-11
Abstract: The invention relates to a vibrator for compacting soil. 
     The object of the invention is to provide a vibrator having an improved manoeuvrability. 
     The vibrator comprises a bottom plate (8) and a vibratory element (10) supported thereby. The vibratory element comprises two in synchronized opposite directions rotatable shafts (62, 64) driven by hydraulic motors and each supporting an excentric weight (66, 68). The relative position ofthe excentric weights is adjustable in orderto impart to the vibratory element a vibratory motion which has the desired direction. 
     The vibratory element (10) comprises two hydraulic motors (12, 14) connected with each of the shafts which are connected with each other by means of a device (70, 72) for transmitting the rotational motion of the one shaft to the other shaft. At least one portion of the motion transmission device connected with the one of the shafts is rotatable in relation to the shaft between two engagement positions which are positioned at an angle distance from each other. The vibrator comprises a control device (30) for supplying a main flow of hydraulic fluid to either the one or the other hydraulic motor (12, 14). On each occasion the shafts are driven by the one or the other hydraulic motor, one of the shafts being thereby driven directly and the other shaft being driven indirectly through the motion transmission device. Thereby the portion of the motion transmission device rotatable in relation to its shaft takes different engagement positions dependent on whether the portion connected with the shaft is driven directly by the hydraulic motor connected with said shaft or indirectly by the hydraulic motor connected with the other shaft.