baber/WOPTO huggingface dataset:
Patent EP-0403069-A1 (EP)
Inventor: NICOLA LIVIU MIHAIL
IPC: H03F1/32
Filed: 1990-05-08
Abstract: A voltage limiting circuit is disclosed for preventing distortion in amplified audio signals. Clipping of the output of a power amplifier (23) is detected and a clipping signal is integrated in a two-step process for limiting a bass frequency gain and limiting a wideband frequency gain which are applied in series. Separate limiting thresholds cause the bass gain to be limited first. Wideband gain is reduced at higher levels of clipping but is more quickly restored when clipping stops. Voltage limiting feedback is provided using inexpensive RC integrator circuits (71, 72, 76, 77).
Patent EP-0403179-A1 (EP)
Inventor: SHIBAIKE NARITO
IPC: B81B5/00
Filed: 1990-06-08
Abstract: An electrostatic micro-motor apparatus (K) capable of transmitting driving force of an electrostatic micro-motor, comprises a rotor (12) which has the shape of a gear substantially. A plurality of electrodes (13a-13r) confront teeth of the rotor and are disposed at a predetermined circumferential region around the rotor (12) so that a circumferential gap(s) (G1, G2) is defined around the rotor (12). A transmission gear or gears (14, 15) is/are provided in the circumferential gap(s) (G1, G2) so as to be in engagement with the rotor (12).
Patent EP-0434213-A1 (EP)
Inventor: ALBIN LOREN D C O MINNESOTA MI
IPC: C07F15/04
Filed: 1990-11-16
Abstract: An N-(monosubstituted)dithiooxamide compound of the formula:
     wherein R 3  comprises:
     (a) an alkyl or aralkyl group having 11 or more carbon atoms; or   (b) a group of the structure -R 4 -Y-R 5  wherein: (i) when Y is a functional group selected from the group consisting of -N(R 6 )C(O)-, -C(O)N-(R 6 )-, -N(R G )-, -N(R G )C(0)0-, -OC(O)N(R 6 )-, and -N(R 6 )C(O)N(R 7 ), wherein R 6  and R 7  are independently hydrogen, or an alkyl or aralkyl group having 1 to 12 carbon atoms: R 4  is a divalent alkyl or divalent aralkyl group having 1 to 12 carbon atoms; R 5  is hydrogen, or an alkyl or aralkyl group having 1 to 20 carbon atoms; and, the total number of carbon atoms in R 4  plus R 5  is at least 7; or (ii) when Y is a functional group selected from the group consisting of -OC(O)-, -C(O)O-, and -OC(O)O-: R 4  is a divalent alkyl or divalent aralkyl group having 1 to 12 carbon atoms; R 5  is hydrogen, or an alkyl or aralkyl group having 1 to 20 carbon atoms; and, the total number of carbon atoms in R 4  plus R 5  is at least 9.   
     Preferred materials are those for which when the monosubstituent dithiooxamide is complexed with a transition metal cation, the resulting polymer is substantially a dark, i.e., blue or blue-black color. Carbonless paper constructions involving use of N-(monosubstituted)dithiooxamides to advantage are described.
Patent EP-0391772-A1 (EP)
Inventor: SCHICK JEAN-FRANCOIS
IPC: F16G3/16
Filed: 1990-03-29
Abstract: This apparatus is intended for fixing, onto the end of a conveyor belt, a row of joining fasteners (2) provided with fixing spikes disposed in readiness, and this is carried out by means of a punch for driving in the spikes and a movable die intended for crimping the points of these spikes. Now, these components form part of a working head (5) comprising a frame (6, 7) capable of being installed at a fixed point on any appropriate support, for example a work bench (8). This working head comprises moreover a slide (11) on which is mounted, so as to slide, a movable bar (10) intended to act as support to the end of a conveyor belt (1) and to the row of joining fasteners (2) to be fixed to the latter. This bar has a series of regularly spaced openings (13) capable of receiving the heads of the fixing spikes (4) which initially project over one of the arms of the joining fasteners (2). The working head (5), which has a fixed position, comprises means capable of immobilising the movable bar (10) in each of these successive positions useful for engaging with this working head for fixing the various fasteners (2) one after the other. <IMAGE>
Patent EP-0435707-A1 (EP)
Inventor: BOURGIE PAUL
IPC: H01R13/631
Filed: 1990-11-20
Abstract: This interconnection assembly comprises: on one side, a first connector element (110); on the opposite side, a telescopic assembly (240, 250, 260) comprising, at its free end, a second connector element (210), this assembly being moved by a manoeuvring thrust device (220) whose deployment moves the second connector element towards the first connector element and then plugs it into the latter; alignment means (241, 242, 243) for mutually aligning, axially and transversely, and orienting, angularly, prior to the commencement of the plugging-in operation, the two connector elements while they come closer together; and means for limiting the travel of the thrust device in order to detect the complete plugging-in of the connector elements and to then interrupt the deployment of the thrust device. 
<??>The telescopic assembly comprises: an intermediate tube (240) housed in a stationary external tube (230) and comprising a first bearing surface (242) intended to interact with a second corresponding bearing surface (122) integral with the first connector element; an internal tube (250), housed in the intermediate tube, carrying the second connector element (210) and connected to the rod of the thrust device; and elastic means (260) for linking the internal tube to the intermediate tube. These elastic means enable, during the approach phase, the displacement impressed on the internal tube by the thrust device to be transmitted to the intermediate tube and these elastic means are progressively compressed as soon as the said bearing surfaces come into contact, the deployment of the thrust device then producing only a displacement of the internal tube, and that alone. 
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Patent EP-0427665-A1 (EP)
Inventor: STACHER ANGELO
IPC: D03J1/14
Filed: 1990-10-12
Abstract: In a device (101) for rectifying warp-thread breaks in a weaving machine (102), the warp threads (12) are sensed in the upper shed, with the weaving machine stationary, the tracking member (101c) being displaced parallel to the weaving reed (4). In this way, the position of the missing warp thread (11) and therefore of the auxiliary warp thread (1) to be drawn in is determined exactly, whereupon a perforated needle (60) can be pushed through the weaving reed (4) in order to draw an auxiliary warp thread (1) through the weaving reed (4). The warp-thread break can thus finally be rectified, without manual interventions in the weaving machine (102) being necessary. 
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Patent EP-0438972-A1 (EP)
Inventor: VEITH GUENTER
IPC: D03J1/00
Filed: 1990-11-12
Abstract: The invention relates to a cloth-beam exchanger for looms, which replaces a full cloth beam (14) with an empty cloth beam (7) and which, together with the loom (1) as one element, possesses a cloth-beam winding station (2), a receiving device (3) for full cloth beams, a receiving device (4) for empty cloth beams, a cutting device (5) and transfer elements (20). A curved insertion wedge (8), which bears with one side over a specific angular sector (9) against the outer surface of the empty cloth beam, pushes, as a result of a relative rotation (18) between itself and a pressing element (11) about the axis of the empty cloth beam (7), a cloth start, obtained by cutting and in the form of a loop (12), under a resilient pressing element (11) prestressed towards the cloth beam. As a result of the retraction of the insertion wedge (8) relative to the pressing element (11), the cloth loop (12) remains between the pressing element (11) and the cloth beam (7). As soon as the cloth loop (12) is overwound, the full draw-off moment can be transmitted from the empty cloth beam (7) to the running-on cloth (13). Pressing elements can be the cloth (13), running onto the empty cloth beam (7) under prestress, or resilient plates (16) which are arranged in the outer surface of the empty cloth beam (7). …<IMAGE>…
Patent EP-0458854-A1 (EP)
Title: Table tennis robot.
Inventor: BLINDHEIM KRISTEN JARLE
IPC: A63B47/02
Filed: 1990-02-16
Abstract: A table tennis robot sends a ball towards a player, so as to simulate a realistic situation in a game, where the device comprises a firing unit, a receiving unit and a collection unit. A damping plate (1) is located on the table-tennis table, on the opposite side of the table from the player. The damping plate (1) slows and controls balls from the player. A trigger mechanism ensures that the player receives a return ball when the player hits a ball correctly. The device may embody more than one firing unit with associated trigger mechanisms, so that return balls come from the same area that the player has hit the ball to.
Patent EP-0480976-A1 (EP)
Inventor: BADER JOSEF
IPC: F16H61/18
Filed: 1990-06-25
Abstract: Une boîte mécanique à plusieurs vitesses comprend des embrayages (2) à synchroniseurs dans lesquels sont agencées des sécurités de rétrogradation. Les embrayages (2) se composent d'un corps de synchronisation (21) sur lequel est agencé un manchon d'embrayage axialement mobile mais solidaire en rotation, ainsi que de bagues de synchronisation (23) et de corps d'embrayage (24) agencés prioritairement des deux côtés des embrayages (2). Les sécurités de rétrogadation prennent la forme d'éléments de verrouillage (3, 4) agencés dans le corps de synchronisation, capables de limiter le déplacement axial du manchon coulissant (22) en s'appuyant sur une butée dudit manchon, en fonction des forces centrifuges. Dans la position interne, les éléments de verrouillage (3, 4) sont retenus par un ressort-bague (5) de façon à ne pas dépasser la surface extérieure (210) du corps de synchronisation (21), alors que dans leur position extérieure par rapport à la tête (31) de la tige de blocage (3), dans laquelle ils sont entraînés par la force centrifuge, ils bloquent le manchon coulissant au moins dans une direction d'embrayage, au moyen d'un segment à force centrifuge qui accroche la butée dudit manchon. Afin d'augmenter la masse des éléments de verrouillage (3, 4), le segment à force centrifuge est logé dans un évidement (211) circonférentiel du corps de synchronisation et son extension radiale vers l'extérieur est elle aussi limitée. Le segment à force centrifuge (4) comprend en outre une projection en forme de collet (41) par rapport au corps de synchronisation, dans laquelle le ressort-bague est retenu dans une rainure radialement ouverte vers l'extérieur. A des vitesses de rotation élevées, le ressort-bague (5) est retenu dans l'évidement (211) avec le segment à force centrifuge (4) par ses extrémités pliées.
Patent EP-0485478-A1 (EP)
Inventor: JONNALAGADDA KRISHNAMURTHY
IPC: H04N11/14
Filed: 1990-07-19
Abstract: Appareil pour enrichir un signal de télévision d'un signal auxiliaire. Il se compose d'un ensemble de circuits destinés à moduler une porteuse d'images avec un signal vidéo en bande de base afin de produire un signal de télévision en bande latérale résiduelle. Le signal auxiliaire (54) est ensuite modulé sur une nouvelle porteuse (CA) ayant une fréquence telle que les bandes latérales supérieures fp-(2n+1)fH/2 de la nouvelle porteuse ainsi modulée, représentant l'information auxiliaire, 1) occupent le spectre de fréquences de la bande latérale résiduelle du signal de télévision de cette même bande (50), et 2) apparaissent groupées aux multiples impairs de la fréquence de demi-ligne. Les bandes latérales de la nouvelle porteuse modulée sont ajoutées (52) au signal de télévision de la bande latérale résiduelle en fréquences imbriquées dans le domaine spectral de la bande latérale résiduelle.
Patent EP-0441983-A1 (EP)
Inventor: TORII NOBUTOSHI ROOM
IPC: G05B19/19
Filed: 1990-09-04
Abstract: A method of controlling a robot, by which the robot can be prevented from causing vibration arising from low rigidity thereof. A processor in a digital servo circuit cyclically performing loop processing of position, speed, and electric current computes an amount (ε) and speed (ε̇) of distortion on the output side of a reduction gear corresponding to the rotational position and rotational speed on the input side of the reduction gear, respectively, after executing observer processing on the basis of a speed instruction computed by speed loop processing and a torque instruction computed by the speed loop processing in the previous cycle in order to achieve an observer function modeled on the basis of a state equation representing the mechanism of the robot (103). The processor computes a switching surface (S) in a sliding mode expressed by a function of the amount and speed of distortion (104) and finds a current instruction value by adding a correction torque found by an operation expression selected according to a positive or negative value of the computation to the torque instruction value computed by the speed loop processing (105 ∼ 108). When the motor is driven according to the current instruction value, the amount and speed of distorsion converge to zero, whereby vibration of the tip of the robot mechanism is prevented and the robot can quickly operate.
Patent EP-0493443-A1 (EP)
Inventor: LANE CHARLES D
IPC: H03M1/20
Filed: 1990-09-18
Abstract: Convertisseur éclair analogique-numérique à n bits, comprenant 2n/2 comparateurs d'entrée, comportant chacun une première entrée couplée pour recevoir la tension analogique à convertir, ainsi qu'une seconde entrée couplée à une tension de référence différente. Les tensions de référence de chaque comparateur d'entrée successif sont espacées de deux bits les moins significatifs du convertisseur. Chaque comparateur d'entrée comporte deux sorties, SORTIE ainsi que une version inversée de celle-ci, S(Boolean not)O(Boolean not)R(Boolean not)T(Boolean not)I(Boolean not)E(Boolean not). On a prévu 2n-1 bascules successives. Chaque autre bascule reçoit au niveau de ses sorties les signaux SORTIE et S(Boolean not)O(Boolean not)R(Boolean not)T(Boolean not)I(Boolean not)E(Boolean not) provenant d'un seul comparateur d'entrée associé. Toutes les autres bascules reçoivent le signal SORTIE d'un des comparateurs d'entrée et le signal S(Boolean not)O(Boolean not)R(Boolean not)T(Boolean not)I(Boolean not)E(Boolean not) d'un comparateur d'entrée adjacent. Les bascules comportant des entrées couplées aux signaux SORTIE et S(Boolean not)O(Boolean not)R(Boolean not)T(Boolean not)I(Boolean not)E(Boolean not) d'un seul comparateur d'entrée, produisent une sortie de comparaison changeant d'état tous les deux bits les moins significatifs du convertisseur, et les bascules ayant une entrée couplée au signal SORTIE du comparateur d'entrée et au signal S(Boolean not)O(Boolean not)R(Boolean not)T(Boolean not)I(Boolean not)E(Boolean not) d'un comparateur d'entrée adjacent produisent des signaux de comparaison changeant d'état à mi-chemin entre les signaux de sortie des bascules adjacentes. Ainsi, une sortie de comparaison est prévue pour chaque bit le moins significatif de toute l'étendue d'échelle du convertisseur, uniquement à l'aide de 2n/2 comparateurs d'entrée.
Patent EP-0445538-A1 (EP)
Inventor: ZURECKI ZBIGNIEW
IPC: C23C4/12
Filed: 1991-02-06
Abstract: Wear resistant surfaces can have their service life increased by being coated with a titanium nitride based coating applied by the electric arc thermal spray process using at least one pre-nitrided titanium feed wire and nitrogen in the arc spray gun.
Patent EP-0445831-A1 (EP)
Inventor: HIRAOKA SHIGERU
IPC: H01L21/66
Filed: 1991-03-08
Abstract: A characteristic testing method for variable capacitance diodes comprises the steps: of separating element pellets of variable capacitance diodes formed in a matrix form on a semiconductor wafer to rearrange separate pellets in a row so that pellets neighboring each other in any one of the longitudinal, lateral and oblique direction of the pellet serve as adjacent pellets, implementing formation of elements on the group of pellets arranged in a row measuring the characteristic of those elements to conduct a quality judgment of the elements to reject defective elements collecting characteristic measurement data of a plurality of good elements in accordance with an arrangement order from an element to be judged toward said one end of said arrangement, and setting quality judgment criteria of said elements to be judged for every said elements to be judged on the basis of said characteristic measurement data.
Patent EP-0464316-A1 (EP)
Inventor: YOSHIMURA SHOJI
IPC: F04C29/00
Filed: 1991-03-27
Abstract: A screw compressor comprises a pair of screw rotors provided in a casing, a cylinder fixed to the casing and having a first chamber and a second chamber, a first piston fitted in the first chamber, a second piston fitted in the second chamber, a built-in volume ratio adjusting valve operated by the first piston, a volume control slide valve operated by the second piston, a stopper fixed to the casing to limit the backward movement of the built-in volume ratio adjusting valve, and a volume control slide valve. When built-in volume ratio adjustment is unnecessary, the built-in volume ratio adjusting valve is held immovable between the stopper and a spacer fixed to the built-in volume ratio adjusting valve and resting on a fixed surface of the casing. All the forces acting on the immovable built-in volume ratio adjusting valve are sustained by the casing, so that the rest of the components of the screw compressor are not exposed to excessive forces.
Patent EP-0462486-A1 (EP)
Inventor: GENGO TADASHI NAGASAKI SHIPYAR
IPC: F22B29/06
Filed: 1991-06-10
Abstract: Disclosed is a variable-pressure once-through boiler furnace evaporating tube unit in which upper headers disposed at the upper end are connected via perpendicular evaporating tubes to lower headers disposed at the lower end, thus constituting a furnace wall. The adjacent evaporating tubes constituting the furnace wall communicate with each other at the middle portions between the upper headers and the lower headers, so as the fluids in the respective evaporating tubes are intermixed.
Patent EP-0472076-A1 (EP)
Inventor: HOPPE LUTZ DR
IPC: C09D101/18
Filed: 1991-08-12
Abstract: The present invention relates to coating compositions consisting essentially of cellulose nitrate having an N2 content of less than 12.6% (by weight) and epoxidated and/or ethoxylated esters of natural fatty acids and/or epoxidated and/or ethoxylated triglycerides, and to the use thereof as paint raw material.
Patent EP-0472184-A1 (EP)
Inventor: KAZUHIRO TASHIRO
IPC: A61K8/89
Filed: 1991-08-21
Abstract: A composition for hair treatment such as hair rinse, shampoo, or hair conditioner, contains (a) 0.1 - 10 wt.% of a modified silicone polymer having at least one alkoxy group in the molecule and a melting point of not lower than 30° C, (b) 0.1 - 20 wt.% of a cationic surface active agent, (c) 0.1 - 30 wt.% of an oily or fatty material, (d) 0.1 - 90 wt.% of an organic liquid which is compatible with water and of which molecule has at least one hydroxyl group, and (e) water.
Patent EP-0488386-A1 (EP)
Inventor: MIYAJIMA KIYOSHI
IPC: F02B49/00
Filed: 1991-11-29
Abstract: An exhaust gas purifier for a diesel engine is positioned in the middle of an inlet system (3) for supplying air to a combustion chamber (2). The exhaust gas purifier comprises an HC (hydrocarbon) supply means (6), and a catalytic converter (18), which is activated by the hydrocarbon as a reduction agent to crack NOx (oxides of nitrogen) in the exhaust gas, thereby purifying the exhaust gas.
Patent EP-0444733-A1 (EP)
Inventor: RENDERS FRANCISCUS AUGUSTINUS
IPC: B60J7/06
Filed: 1991-02-15
Abstract: Girder for bodywork construction of industrial vehicles, more specific upper longitudinal girder for trailer, semi-trailer or loading space of lorry, with roof canvas (23) and sidelong curtain (5), which girder mainly consists of an extruded element (3), which contains a longitudinal supporting core (7) and sidelong against the latter at least a guide (8) for the hanging of said curtain (5).
Patent EP-0458442-A1 (EP)
Inventor: ANDERTON KENNETH
IPC: D06P3/10
Filed: 1991-03-05
Abstract: A compound which, in the free acid form, has the Formula (1), a process for the coloration of materials having -OH and/or -NH- groups by applying thereto a compound of Formula (1), and materials having -OH and/or -NH- groups when coloured with a compound of Formula (1):
       
 wherein:
     R¹   is H, alkyl, alkoxy, CO₂H or SO₃H;   Z   is -CH=CH₂ or a group which yields -CH=CH₂ on treatment with aqueous alkali;   A and A¹   are each independently H or SO₃H provided at least one of A and A¹ is SO₃H;   X   is Cl or F;   R²   is H, alkyl or alkenyl; and   Y   is phenyl substituted by one or two groups selected from CO₂H and SO₃H.
Patent EP-0466361-A1 (EP)
Inventor: WILEN ALLAN SHELDON
IPC: B32B27/16
Filed: 1991-06-26
Abstract: Microwaveable package exhibiting improved temperature control are provided. The package comprises a dielectric substrate having at least a portion of at least one of its surfaces coated with a matrix composition containing susceptor particles as well as particles of a blocking agent selected from the group consisting of calcium salts, zinc salts, zinc oxide, lithopone, silica and titanium dioxide. Also disclosed is a microwaveable ink composition useful for the preparation of such a package as well as a process for manufacturing the package.
Patent EP-0504516-A1 (EP)
Inventor: NEESER TIMOTHY ALLAN
IPC: B67D1/04
Filed: 1991-07-17
Abstract: A carbonated beverage delivery system having at least two syrup storage tanks (7,9). Each storage tank is provided with a valve (45) that allows air to vent from the tank during delivery, acts as a nozzle to deliver cleaning solution during clean-up operations and, most significantly, meters the amount of fluid delivered to the tank and prevents inadvertent overfill. The tanks are also provided with a syrup feed pipe (31)  and drain pipe (18) for filling and discharging the tank, respectively. The drain pipe can be connected to a mixing valve (19) that also receives carbon dioxide and water from separate sources. These components are mixed at the mixing valve to create the desired carbonated beverage which is then delivered to a beverage dispenser. The feed pipe (31) can be connected to a delivery truck supply tank (60) such that its supply of syrup can be replenished. The volume of syrup carried by the truck supply tank is less than the total volume of all the storage tanks to be filled from the supply tank.
Patent EP-0478325-A1 (EP)
Inventor: ZIEKE LARRY M
IPC: B65B9/20
Filed: 1991-09-26
Abstract: A method and apparatus for producing rolls (40) of thermoplastic zipper film stock wherein zipper elements (14,16) are interlocked for structural support and in which the web (12) is folded into a Z-shaped configuration in cross-section. Thus the web (12) is open and ready for use on container and packaging machines.
Patent EP-0485083-A1 (EP)
Inventor: TEETER EUGENE WESTOVER
IPC: B65G21/02
Filed: 1991-10-17
Abstract: A bucket conveyor frame is disclosed having at least one horizontal section (56,60) and one vertical section (58) which are connected by a curved section (57,59). Each section has a central support tube. A plurality of plates connected to the support tube lie in approximately horizontal planes. Upper and lower chain tracks (94,110,128,142) extend the length of the sections. A transport track delivers products from an infeed station (24) to a discharge station (26) and a return track returns the buckets to the infeed station in a continuous loop. Chain sprockets are located within enclosed housings at the infeed and discharge stations.
Patent EP-0488735-A1 (EP)
Inventor: KURIYA YOSHINORI
IPC: B29D30/38
Filed: 1991-11-28
Abstract: A steel cord for the reinforcement of rubber articles comprises a central basic layer (1) comprised of 1 to 4 steel filaments, at least one coaxial layer (2,3) arranged around the central basic layer and comprised of steel filaments which are twisted in the same twisting direction at the same twisting pitch, and a wrap filament (4) spirally wound around the coaxial layer in the same twisting direction. Such a steel cord may be suitably used as a carcass cord ply of a pneumatic radial tire.