baber/WOPTO huggingface dataset:
Patent EP-0028890-A1 (EP)
Inventor: DETERING RICHARD LARRY
IPC: H02M7/155
Filed: 1980-10-22
Abstract: In a static-controlled power converter which uses power switches (SCRs) (T 1 -T 6 ) controlled by a digital pulse generator, the cosine transfer gain is linearized by digital treatment of one of the two control signals of the digital pulse generator controlling the firing angle of the power switches (T I -T 6 ). To this effect, a ROM device (200) is designed so as to convertthe inputted digital control signal into a digital input signal forthe digital pulse generator which is an exact compensation function, e.g. providing a transfer gain combining with the cosine transfer gain of the converter to linearize the overall power amplifier.
Patent EP-0029317-A1 (EP)
Inventor: HIGGINS RAYMOND
IPC: C07C51/25
Filed: 1980-10-31
Abstract: Maleic anhydride is produced by oxidising a straight chain C 4  hydrocarbon with oxygen in a stream comprising 25 to 60% by volume of the C 4  hydrocarbon, 20 to 45% by volume of oxygen and optionally inert gases to produce a stream containing at least 2½% by volume of maleic anhydride and condensing maleic anhydride substantially free from water from this stream.
Patent EP-0031219-A1 (EP)
Inventor: HADLEY MICHAEL STEWART
IPC: C07D451/06
Filed: 1980-12-11
Abstract: Compounds of the formula (III) and pharmaceutically acceptable salts thereof:
     wherein:
     R, is a C 1-6  alkoxy or C 1-6  alkylthio group;   R 2  and R 3  are the same or different and are hydrogen, halogen, CF 3 , C 1-7 acyl, C 1-7  acylamino or amino, aminocarbonyl or aminosulphonyl optionally substituted by one or two C 1-6  alkyl groups, C 1-6  alkylsulphonyl, C 1-6  alkylsulphinyl, Ci-6 alkoxy, C 1-6  alkylthio, hydroxy or nitro or R 1  and R 2  taken together are methylenedioxy or ethylenedioxy in which case R 3  is any one of the groups given for R 2  and R 3  above;   R 4  is C 1-7  alkyl or a group -(CH 2 ) s R 6  where s is 0 to 2 and R 6  is a C 3 - 8  cycloalkyl group, or a group -(CH 2 ) t R 7  where t is 1 or 2 and R 7  is a phenyl group optionally substituted by one or two substituents selected from C 1-6  alkyl, C 1-4 alkoxy, trifluoromethyl and halogen, or a thienyl group; and   n, p and q are independently 0 to 2 having useful pharmacological activity, a process for their preparation and their use.
Patent EP-0041513-A1 (EP)
Inventor: KARLSSON AKE
IPC: A61B5/00
Filed: 1980-11-26
Abstract: Dispositif de mesure des changements de temperature chez les animaux tels que le betail. Un dispositif de detection (1) est concu sous la forme de deux moities de collecteurs en godet d'aspiration (7) avec une bague d'espacement filetee (10). La bague d'espacement (10) est pourvue de quatre detecteurs (8). Depuis la bague d'espacement (10), une ligne (2) d'alimentation de puissance (4) est connectee a l'unite centrale (3) qui est pourvue de cinq zones rectangulaires (11) pour la mesure de la temperature a un niveau predetermine, un instrument (12) indiquant les traillons qui ne donnent pas de lait, un instrument d'indication a affichage digital (13) indiquant les temperatures utiles et un bouton de remise a zero (14) pour activer le circuit. Du lait, dont la temperature doit etre mesuree, est introduit a partir d'un godet a traillon (6) selectionne et au travers de ce dernier vers la bague d'espacement (10) et le lait, dont la temperature a ete mesuree, s'ecoule du collecteur a godet d'aspiration (7) au travers d'un tuyau de transport (5) vers le systeme de tuyaux d'alimentation de puissance (4) se fait par des batteries interchangeables. L'objet est de fournir un dispositif de mesure des temperatures simple, precis et economique. Le dispositif de mesure de temperatures est fabrique sous forme d'unites compactes, robustes et s'adaptant facilement.
Patent EP-0036605-A1 (EP)
Inventor: MULLER HORST DIPL-ING
IPC: H03K3/84
Filed: 1981-03-16
Abstract: 1. A PCM-system having a transmitting section (SE) for the parallel scrambling of n binary digital signals (BS1 to BS4), which are respectivement fed to a first input of n modulo-2-adders (MO1 to MO4) whose outputs, in order to form a serial binary signal (SB), are connected to the inputs (DO to D3) of a multiplexer (MUX) and whose second inputs (EM1 to EM4) are connected to the outputs (a, c, d, g) of a scrambler (SC) which are formed by the flip-flops (K1 to K7) of a shift register (SR) provided with feed-back ; and with a receiving section (EM) which corresponds to the transmitting section (SE) and which includes a demultiplexer (DMUX) and a synchronized descrambler (DSC), characterized in that the feed-back path of the shift register contains only one modula-2-adder (MO), that in order to produce a predetermined synchronizing sequence the transmission of the binary digital signals (BS1 to BS4) is blocked, and that the flip-flops (K1 to K7) have setting inputs which are combined via a common resetting input (R) and in order that the synchonizing sequence may be produced are set by a pulse in such manner that the pseudorandom sequences emitted by the scrambler, having been combined, from the synchronizing sequence at the output of the multiplexer (MUX).
Patent EP-0062081-A1 (EP)
Inventor: HOHN WOLFGANG DIPL-ING
IPC: H03M1/20
Filed: 1981-04-03
Abstract: 1. Parallel analog-to-digital converter with p = 2**r -1 comparators (D1 to Dp) where r is the number of bits of the (r+1)-bit converter output signal (A1 to A(r+1)) diminished by 1, wherein the analog signal is applied to the noninverting (or inverting) inputs of all p comparators (D1 to Dp), whose inverting (or noninverting) inputs are connected consecutively to the taps of a resistive voltage divider (R1 to R(p-1)) consisting of equal-value resistors and having a reference voltage (Ur) applied thereto, wherein the analog signal is shifted by DELTA U = Ur/2**r+1 for the duration of every second clock period of the converter clock signal, and wherein the comparator outputs are connected to a digital encoder (CD) followed by a buffer memory (PS), characterized by the following features : - the analog signal is applied to the appropriate comparator inputs through a resistor (R) interconnecting the collectors of two transistors (T1, T2) connected in the manner of a differential amplifier and having a constant-current source (KQ) in the emitter circuit, the base of one of the transistors being at fixed potential (Uc), and the base of the other transistor being fed with a clock signal (F) of half the frequency of the converter clock signal ; - the value of the resistor (R) is chosen according to the following equation : R = DELTA U/l = 2**-(r+1) Ur/l, where l is the strenght of the constant-current-source current, and - the least significant bit at the output of the digital encoder (CD) and the corresponding bit at the output of the buffer memory (PS) are combined via an exclusive-OR gate (EG) whose output provides the least significant bit (A1) of the output signal (Ar to A(r+1)) of the parallel analog-to-digital converter.
Patent EP-0040422-A1 (EP)
Inventor: BOCK MARK G
IPC: C07D241/26
Filed: 1981-05-18
Abstract: Novel substituted pyrazinyl-1,2,4-oxadiazoles of the formulas 
<CHEM>
 are disclosed
 wherein
 R is hydrogen or lower alkyl (C1-5),
 R<1> is hydrogen or lower alkyl (C1-5),
 R<2> is hydrogen or lower alkyl (C1-5),
 R<3> is hydrogen or lower alkyl (C1-5),
 R and R<1> can be joined to form an alkylene group of from 2-4 carbon atoms,
 R<4> is lower alkyl (C1-5)
 X is halo, cyano or phenyl, and
 Y<-> is chloride, bromide or iodide, or a suitable anion. 
<??>Processing for preparing the same are also described. The compounds are useful in the treatment of edema and hypertension.
Patent EP-0043037-A1 (EP)
Inventor: NITTEL FRITZ DR
IPC: C09K23/36
Filed: 1981-06-19
Abstract: Hydrophobe Substanzen, insbesondere Zusätze zu photographischen Materialien werden unter Verwendung eines Ölbildners in einem mehrstufigen Verfahren in einem wäßrigen Medium dispergiert, indem die Gesamtmenge der hydrophoben Substanzen gegebenenfalls zusammen mit einem Teil der Gesamtmenge des Ölbildners in einer Hauptdispergierstufe, und der restliche Teil der Gesamtmenge des Ölbildners in mindestens einer der Hauptdispergierstufe zeitlich vor- oder nachgeschalteten weiteren Dispergierstufe in dem wäßrigen Medium dispergiert wird. Als Ölbildner werden beispielsweise Triarylphosphate, Dialkylphthalate, Monoester der Bernsteinsäure, die in α-Stellung einen aliphatischen Rest mit mindestens 8 C-Atomen trägt, oder von hydrierter Phthalsäure, oder aliphatische oder cycloaliphatische Alkohole mit mindestens 10 C-Atomen und deren Gemische verwendet. Nach dem Verfahren werden Dispersionen mit erhöhter Digestionsstabilität erhalten.
Patent EP-0044514-A1 (EP)
Inventor: BERNHAGEN DR WOLFGANG DIPL-CHE
IPC: C07C33/22
Filed: 1981-07-15
Abstract: 1. Process for preparing dimethylbenzyl carbinol and dimethylbenzyl carbinyl formate from 2-methyl-1-phenyl-2-propene and formic acid in the presence of catalytic amounts of a strong mineral acid, characterised in that the conversion is carried out in the presence of an aliphatic alcohol containing 1 to 10 carbon atoms, a cycloaliphatic or aromatic alcohol, which has up to 10 carbon atoms, the mole ratio of olefin to formic acid is 1 : 1 to 10, that of olefin to formic acid is 1 : 0.05 to 0.2 and that of olefin to catalyst 1 : 0.05 to 0.2, sulfuric acid is used as a catalyst and the reaction takes place at 5 to 50 degrees C.
Patent EP-0059247-A1 (EP)
Inventor: NICKOL FRIEDRICH-WILHELM
IPC: G02F1/133
Filed: 1981-10-24
Abstract: Die Erfindung betrifft eine Anzeigevorrichtung zur Darstellung heller Zeichen in dunklem Umfeld, insbesondere eine Flüssigkristallanzeige. Sie besitzt ein zwischen zwei optisch verschiedenen Zuständen schaltbares Medium zwischen zwei zueinander parallelen Trägerplatten (1, 2). Auf einer der einander zugewandten Trägerplattenflächen ist eine Fixierschicht aufgebracht, die Distanzelemente (7) beinhaltet. Durch diese Distanzelemente (7) sind die Trägerplatten (1, 2) in einem bestimmten Abstand voneinander gehalten. Weiterhin ist jeder Trägerplatte (1, 2) ein Polarisator (11, 12) zugeordnet. Um bei exakter Einhaltung des Abstands zwischen den Trägerplatten (1, 2) einen starken Kontrast zwischen den Zeichen und deren Umfeld zu gewährleisten, überzieht die Fixierschicht die Trägerplatte (1) vollständig und bestehen die Distanzelemente (7) aus einem Material dunkler Farbe.
Patent EP-0050869-A1 (EP)
Inventor: LEHMANN BERND DR DIPL-CHEM
IPC: C07C67/22
Filed: 1981-10-25
Abstract: 1. A process for the production of N-tertiary-alkylamines or cycloalkylamines and esters of formic acid from ethers by reacting the ethers with hydrogen cyanide and water in the presence of strong acids, characterised in that tertiary-alkyl-ethers or cycloalkylethers of primary or secondary alkanols are reacted in the presence of up to about double the molar quantity of the strong acids to produce N-tertiary-alkylamines or cycloalkylamines and formic acid esters of the primary or secondary alkanols.
Patent EP-0050524-A1 (EP)
Inventor: BRANKLING DAVID
IPC: C08F8/06
Filed: 1981-10-21
Abstract: A method for oxidatively shearing an olefinic polymer accompanied by introduction into the sheared polymer of carbonyl groups which comprises oxidising the olefinic polymer in a solvent such as a lubricating oil in the presence of an alkali or alkaline earth metal added in the form of either the elemental metal or a compound other than a benzene sulphonic acid salt. The oxidised sheared polymer so-produced can be used without further modification as a viscosity index improver additive in lubricating oil compositions or can be modified by reaction with functional group-containing compounds to introduce multifunctional properties.
Patent EP-0053916-A1 (EP)
Inventor: SAKAI KEIJIRO
IPC: H02P27/06
Filed: 1981-12-03
Abstract: A control system for an induction motor driven by an AC output of variable frequency and voltage produced from an inverter (4) which converts DC power obtained by a converter (2) through conversion of AC power having constant voltage and constant frequency. The system comprises means (8, 9, 10,11,13; 23, 24) for estimating the power factor of the induction motor from an input current to the inverter, means (8) for controlling the voltage of the AC output from the inverter when the estimated power factor is outside a predetermined range, and means (7, 8) for restricting the control of the AC output voltage to prevent the ratio between the AC output voltage and the AC output frequency from exceeding a predetermined range.
Patent EP-0041907-A1 (EP)
Title: Banc de retenue de mandrin pour laminoir continu
Inventor: BLANQUET CLAUDE
IPC: B21B25/02
Filed: 1981-06-03
Abstract: Dispositif permettant de libérer le mandrin d'un laminoir à tube sans que l'extrémité n'ait tendance à s'échapper intempestivement vers le haut au moment où elle est libérée. Ce dispositif consiste à fixer la fourchette (10) retenue du mandrin (11) sur un chariot (7) entraîné par deux chaînes sans fin (1-1'). Le chariot est relié aux deux chaînes (1-1') par deux liaisons-articulations (8-8'/15-15') sur deux maillons successifs (9-9'/15-15') de chacune des chaînes (1-1'). La liaison aval (8-8') support l'effort de traction du mandrin (11) sur le chariot (7). La liaison amont (15-15') est une liaison avec débattement. Ainsi la fourchette (10) s'incline de l'angle approprié au moment où elle s'éclipse vers le bas pour libérer l'épaulement (13) du mandrin (11).
Patent EP-0033305-A1 (EP)
Inventor: NILSSON KJELL
IPC: E02D5/80
Filed: 1981-01-16
Abstract: A ground anchor device comprises a plate (13), which in use rests upon the ground, a stanchion (12, 25, 30) or the like projecting from one face of the plate as well as a helical member (11) adapted to be screwed into the ground. 
     The helical member is formed as an open helix (22, 28, 31), and at the plate there is at least one vertical stay (23, 27) for bracing the helix, which, by itself, will not have a satisfactory lateral rigidity, as it lacks a core. 
     The stays can be formed as short rods (23), preferably of semi-circular cross-section, which are welded to the plate (13), inside the helix (22,31), and extend downwardly over at least two windings of the helix, to be welded thereto. 
     Alternatively the stay may consist of a length of tube (27) from the end of which remote from the plate the helix (28) issues. The tube (27) is preferably provided with at least one opening (29) for the escape of soil being forced upwards by the helix.
Patent EP-0045772-A1 (EP)
Inventor: MYRSTRAND GUNNAR
IPC: A47B13/02
Filed: 1981-02-19
Abstract: Une table comprend un dessus de table (2) et des pieds, qui peuvent etre fixes et enleves de maniere simple du dessus de table, et des moyens d'attache pour attacher les pieds au dessus de table. Chaque pied comprend deux parties (3, 4) qui sont attachees l'une a l'autre a l'extremite inferieure et mobiles en se rapprochant et en s'eloignant l'une de l'autre par l'action de l'elasticite propre du materiau. Deux de ces pieds sont attaches a leur extremite superieure de maniere espacee l'un de l'autre a l'aide d'entretoises, de maniere a former un treteau. A la petite extremite de chaque dessus de table (2), des moyens d'attache comprenant des blocs (11, 12) sont prevus. Les blocs (11, 12) possedent des evidements horizontaux (14, 15, 16), dans lesquels des projections correspondantes (9, 10) provenant des pieds sont introduites et maintenues par leur elasticite. Ces blocs (11, 12) sont positionnes dans le sens longitudinal du dessus de table (2) de telle sorte qu'un treteau puisse etre attache soit a la petite extremite du dessus de table (2) soit, alternativement, entre les blocs (11) positionnes le plus pres de la petite extremite du dessus de table (2) des deux dessus de table (2) places l'un a cote de l'autre, dans ce dernier cas le treteau reliant les dessus de table (2) entre eux, empechant des vides et des differences de hauteur de se former entre les dessus de table (2).
Patent EP-0047322-A1 (EP)
Inventor: TAKEUCHI SEIZI
IPC: H01M4/86
Filed: 1981-03-04
Abstract: Un procede de preparation d'un catalyseur de particules metalliques fines ayant une grande surface specifique telle que du noir de platine, consiste a reduire une solution contenant des ions platine et au moins un ion metallique ou un ion complexe ayant un potentiel Redox different celui des ions platines, et a effectuer l'elution du metal ayant un potentiel Redox different de celui du platine hors des particules metalliques precipitees. Le catalyseur ainsi obtenu possede une petite dimension de particules et est tres approprie a l'utilisation comme electrode d'une cellule a combustible.
Patent EP-0064065-A1 (EP)
Inventor: NORONEN AATTO
IPC: B01D15/08
Filed: 1981-11-03
Abstract: Systeme de circulation d'air dans un four chromatographique a gaz dans lequel le chauffage et le refroidissement sont regles a l'aide d'une resistance de chaleur (9), un detecteur (14) et uniquement un seul obturateur (8).
Patent EP-0067167-A1 (EP)
Inventor: MCGINN MICHAEL
IPC: H03K4/502
Filed: 1981-10-28
Abstract: Un oscillateur horizontal pour un recepteur de television comprend un condensateur a mono-plaquette de nitrure (30). Le circuit comprend un amplificateur de courant de reference (64, 66, 68, 70, 72) qui genere un courant de reference de faible coefficient de temperature. En faisant varier le gain d'un circuit reflecteur de courant (78, 80, 82), le courant de reference est divise pour produire un petit courant de charge/decharge. Une chaine de polarisation resistive (36, 38, 40, 42) et un premier et un second condensateurs (30, 106) sont utilises pour fixer les tensions de crete superieure et inferieure du signal de rampe de sortie de l'oscillateur.
Patent EP-0072465-A1 (EP)
Title: Dispositif de filtrage de vibrations et de bruit
Inventor: LAMY JEAN-MICHEL
IPC: B60K20/02
Filed: 1982-07-28
Abstract: La rotule (2) d'un levier de vitesses (1) de véhicule automobile est montée dans une pièce intermédiaire (5) comprenant une base massive reliée à un élément (4) mobile et présente sur sa surface en regard de l'autre élément (6) fixe, des protubérances (12) en saillie.
Patent EP-0072609-A1 (EP)
Inventor: ZOLLMAN PETER MARTIN
IPC: B23K26/00
Filed: 1982-06-21
Abstract: The laser beam is passed through diffraction means (15), which may be of any suitable form such as a diffraction grating, zone plate or diffraction aperture or a beam shaping mirror, and is then focussed onto the surface of the workpiece in the form of a diffraction pattern. In addition, the workpiece may be moved relative to the laser beam during engraving while praferably also varying the intensity (pulse- shape) of the laser beam to produce the cells of different size and configuration. The disclosure also describes methods and apparatus for engraving an image or pattern on the surface of the workpiece by varying the output of the laser beam in accordance with stored image defining signals to produce cells of uniform or different size and shape while scanning the workpiece surface.
Patent EP-0079255-A1 (EP)
Title: Dispositif perfectionné de commande de la pression de suralimentation d'un moteur turbocompressé permettant d'améliorer la réponse dynamique
Inventor: ARNAUD HENRI
IPC: F02B37/18
Filed: 1982-10-11
Abstract: Dispositif de commande de la pression de suralimentation d'un moteur turbocompressé, du type comportant un turbocompresseur (2) dont la partie turbine (2a) est alimentée par l'échappement (3) du moteur (1), avec une vanne de décharge (8) en dérivation, et dont la partie compresseur (2b) alimente par un conduit (6) et un papillon des gaz (5) la conduite d'admission (7) du moteur (1), et dans lequel ladite vanne de décharge (8) est commandée par un vérin pneumatique (11) à ressort de rappel (12) agissant dans le sens de la fermeture et dont la chambre de commande (13) est raccordée par une conduite de liaison (14) audit conduit (6), caractérisé par le fait qu'une valve à retard (15) est interposée dans ladite conduite de liaison (14), ladite valve à retard (15) étant constituée par un étrangleur (16) et un clapet anti-retour (17) placé en parallèle.
Patent EP-0093220-A1 (EP)
Inventor: HAMILTON FRANK GARRISON
IPC: B07B1/15
Filed: 1982-05-04
Abstract: Disk screens having various interface opening dimensions are combined with air classifiers and other refuse separating components to separate municipal and industrial refuse into a fuel fraction and other recyclable resource fractions, each having a low percentage of unwanted materials therein.
Patent EP-0098907-A1 (EP)
Inventor: HINTERMANN FRITZ
IPC: F03G6/00
Filed: 1982-07-16
Abstract: The essence of the installation is that a mechanical drive is produced via a double piston (2) at low temperatures via warming and cooling heat exchangers (6-15) which are charged with coolant. The heat can be solar heat, or it can be composed of a multiplicity of waste heats arising from industrial and chemical processes, such as waste heat from nuclear power stations, heating systems, households, ventilation systems, cooling systems, recooling plants, exhaust gases, engine waste heat, geothermal heat. This waste heat is still frequently lost to use. Water from lakes, rivers and seas or melt water or groundwater is used to cool the heat exchangers. Cold air can also be used. The installation serves to generate mechanical drive energy which can be tapped at the piston rods. For its part, the mechanical energy can be further employed for all types of drive, and thus also to generate electricity. A plurality of installations can be assembled by means of crankshafts, belts, toothed gears, couplings or chains, so that it is possible for them to operate as a block or in stages. <IMAGE>
Patent EP-0057163-A1 (EP)
Inventor: LANCEROTTO FABIO
IPC: B65H59/38
Filed: 1982-01-07
Abstract: System for regulating the temporary speed of rotation of a spindle (16) taking up yarn on bobbins (25), whereby the regulating system tends to restore and keep substantially constant the temporary speed of winding of the yarn of the bobbin (25) being formed and comprises in coordinated cooperation with each other and with the bobbin or bobbins (25) being formed:
     a drive roll (10) actuated by a synchronous motor and regulated with variable frequency to the desired peripheral speed and revolving in contact with the bobbins (25) being formed: a shaft (11) of the drive roll (10), supported in an oscillating manner and in a position of equilibrium in relation to a given desired peripheral speed of the drive roll (10); means (26) to monitor and read the temporary angular position of the shaft (11) of the drive roll (10); means (33) to balance and equilibrate the reacting moment of the shaft (11) of the drive roll (10); and a control and regulation unit (27), whereby there are advantageously included start-up brake means (28), means (18) to signal and eliminate the presence of fibres wound on the drive roll (10) and means (34) to damp the sensitiveness of corrective action.
Patent EP-0067145-A1 (EP)
Title: Einrichtung zum Kühlen der Meissel einer Schrämmaschine
Inventor: ZITZ ALFRED
IPC: E21C35/22
Filed: 1982-05-26
Abstract: Zum Kühlen der Meissel (1) einer Schrämmaschine sind Düsen (22) für Kühlwasser vorgesehen. Der Meissel (1) ist axial verschieblich gelagert und kann einen Hub im Ausmass (a) bei Belastung im Sinne des Pfeiles (4) durchführen. Die Hubbewegung des Meissels (1) ist über ein Kuppelglied (9) mit einem Absperrventil (7) verbunden, welches die Wasserzufuhr in unbelastetem Zustand des Meissels sperrt und bei Überschreiten eines vorbestimmten Schnittdruckes freigibt. Die Rückstellkraft des Meissels (1) in die Ausgangslage beim unbelasteten Zustand wird durch eine Feder (5) und den Wasserdruck gebildet und ist entsprechend dem Mindestwert des Schnittdruckes bemessen. Die Rückstellfeder (5) ist gegen ein verstellbares und im Betrieb festlegbares Widerlager (30, 31) abgestützt, so dass die Rückstellkraft eingestellt werden kann.