baber/WOPTO huggingface dataset:
Patent EP-0480028-A1 (EP)
Inventor: KHOPOV VLADIMIR VIKTOROVICH
IPC: G01B11/30
Filed: 1989-06-30
Abstract: A method for determining the surface profile of diffusion-reflecting objects provides for interferometrical comparison of the light beams reflected by a reference mirror (5) and by the object (11), deviation of the optical path of the object beam, focusing the object beam on a plane corresponding to a zero difference between the path lengths of the interferometrically compared beams and measuring said optical path change between the initial value and up to the moment of obtaining the interference picture of the maximum contrast. A device for implementing the method comprises an objective (1) and, consecutively mounted, a coherent radiation source (2), and an interferometer (3) comprising a light divider (4), a reference mirror (5) located on one side (6) of the surface of the light divider (4) perpendicularly to the beam path and an optical path modulator (7) mounted on the other side (9) of the surface of the light divider (4) with the possibility of oscillating movement along the beam path and provided with a unit (8) for measuring its displacement. The device further comprises a photo-receiver (12), a unit (13) for determining the contrast of the interference lines and a unit (14) for fixing the position of the modulator (7). The modulator (7) is provided with a corner reflector (10) whose axis of symmetry is parallel to the beam path and is located beyond the plane of the light divider (4). The objective (1) is designed so as to provide for the possibility of optical conjugation of the coherent radiation source (2) with the plane corresponding to the zero path difference of the interferometer (3).
Patent EP-0457776-A1 (EP)
Title: Gas detector.
Inventor: ADAMS HORST
IPC: G01N27/64
Filed: 1990-02-07
Abstract: PCT No. PCT/EP90/00195 Sec. 371 Date Jul. 19, 1991 Sec. 102(e) Date Jul. 19, 1991 PCT Filed Feb. 7, 1990 PCT Pub. No. WO90/09586 PCT Pub. Date Aug. 23, 1990.A trace gas detector including in a closed gas loop, two baffle cells with an intermediate trace gas filter, each baffle cell consists of an ionization source, a labyrinth-like recombination zone and a collector electrode. A differential circuit derives a differential signal from output signals of the two baffle cells, the differential signal depending only on the trace gas concentration. Temperature changes and supply voltage changes are compensated by means of the differential circuit.
Patent EP-0592662-A1 (EP)
Inventor: IIJIMA MASAYUKI DAI NIPPON PRI
IPC: G03G15/05
Filed: 1990-03-15
Abstract: The electrostatic data recording medium (110) of the invention comprises an electrode layer (113) and a charge-holding layer (111). The method of laminating the charge-holding layer (111) and the structure of the layer are improved. Further, the electrostatic data are converted into visible or positional data. Thereby, the medium has excellent characteristics of data holding, and the electrostatic data can be stored for a longer period of time. According to the electrostatic data recording method of the invention, the electrostatic data recording medium (110) is so disposed as to face a photosensitive member (1) having a photoconductive layer (9) on an electrode (7), image exposure is carried out while a voltage is applied across the electrodes (113) and (7), and electrostatic data corresponding to the image exposure are recorded in the electrostatic data recording medium (110). The electrostatic data recorded in the charge-holding layer (111) can be easily reproduced by reading the surface potentials, to amplify and output the signals, or by an electro-optical method, or by developing with toner. The electrostatic data recording medium (110) of the invention has storage capacity with a high data density of 8 x 10⁸ bits/cm². The electrostatic data recording method which uses a photosensitive member makes it possible to accomplish two-dimensional data-recording, and to record analog, digital, picture, voice and (0, 1) data, and to realize the application electrostatic data recording cards, etc.
Patent EP-0419681-A1 (EP)
Inventor: ASANUMA TADASHI - - TORIISHI -
IPC: C08F6/02
Filed: 1990-04-10
Abstract: A method of producing syndiotactic polypropylene characterized by washing a polymer produced by polymerizing propylene in the presence of a catalyst comprising a transition metal compound having unsymmetrical ligands with a hydrocarbon solvent. A syndiotactic polypropylene having further improved properties can be obtained by treating the formed polymer slurry with a mixture of a β-dicarboxy compound and an alcohol or with an alcohol containing hydrogen chloride under a nonaqueous condition to thereby solubilize the residue of the catalyst used in the polymerization in the hydrocarbon solvent before conducting the washing.
Patent EP-0423376-A1 (EP)
Inventor: NAKANIWA SHINPEI JAPAN ELECTRO
IPC: F02D41/34
Filed: 1990-05-15
Abstract: The error magnitude of the supply characteristics of a fuel supply means of one specified cylinder whose air/fuel ratio has been forcibly changed is detected depending on whether or not the effect caused by the air/fuel ratio of said specified cylinder only that has forcibly been changed by correcting the amount of fuel supply is exerted on the correction value of the air/fuel ration feedback set based on the average air/fuel ratio of each cylinder as predicted, and the correction value of the amount of fuel supply is set for each cylinder based on the error magnitude of the supply characteristics thus obtained for each cylinder.
Patent EP-0425705-A1 (EP)
Inventor: KATOU DAIICHIROU NIPPON HOSO K
IPC: G11B15/60
Filed: 1990-05-22
Abstract: A rotary drum unit of a helical scan-type magnetic recording/reproducing apparatus used for a video tape recorder or a digital audio tape recorder, enables the tape to run stably and a track pattern to be formed maintaining high precision. In the helical scan-type rotary head drum of the invention, tape position detecting sensors (3) arranged along an imaginary lead (2) detect a change of the tape (4) on the drums (1) and (6) that have no lead, and an actuator for dynamic tracking is so driven as to correct the deviation amount from the imaginary lead (2), so that the rotary head (5) is moved in the axial direction to effect the scanning.
Patent EP-0425655-A1 (EP)
Title: Passive network monitor and corresponding method of monitoring.
Inventor: DOUGLAS ROBERT H
IPC: H04L12/24
Filed: 1990-05-18
Abstract: The invention is a network monitor (10) that passively detects sequences of control frame transmissions. Detected control frame sequences are compared to a model of the expected exchange of control frames. The monitor concludes that a malfunction has occurred when the detected control frame sequences do not match the frame sequences indicated by model. The monitor is quite useful with a network that uses a token passing protocol, since it can determine whether a particular station (11) is working improperly by tracking whether the token is passed in the order proscribed by the expected token-passing sequence in the model. The monitor can detect and diagnose many types of network malfunctions. The monitor also observes and maintains statistics on network data traffic and configuration information, in real time. Since the monitor independently tracks which station has the token, statistics are developed on how much traffic is passing to and from bridges (14).
Patent EP-0441985-A1 (EP)
Inventor: HORIKI SEINOSUKE NAGOYA OILCHE
IPC: B05B12/26
Filed: 1990-09-06
Abstract: L'invention se rapporte à un procédé, qui permet de fixer un matériau de masquage en polyoléfine sur la surface à protéger d'un élément, en collant une bande adhésive sur la surface supérieure du matériau de masquage et sur la surface de l'élément, afin de fixer le matériau de masquage, ainsi qu'à un matériau de masquage utilisé à cet effet. Selon ledit procédé, la couche adhésive de la bande adhésive ne se transfère pas sur la surface de l'élément, lorsque le matériau de masquage se détache par écaillement de la surface de la partie protégée de l'élément.
Patent EP-0493438-A1 (EP)
Title: Magnetcodeleser mit verstellbarem schwellwert.
Inventor: JONES PHILIP BRIAN BRANT
IPC: G07D7/04
Filed: 1990-09-19
Abstract: PCT No. PCT/GB90/01446 Sec. 371 Date Oct. 17, 1991 Sec. 102(e) Date Oct. 17, 1991 PCT Filed Sep. 19, 1990 PCT Pub. No. WO91/04549 PCT Pub. Date Apr. 4, 1991.A reader for a coded discontinuous security thread in a security document comprises a multiplicity of reading channels each coupled to at least one magnetic transducing means (11, 40) for sensing along a track across the document and including processing circuits for forming a channel signal which exhibits signal excursions in response to the passage of the ends of each length of magnetic material. First and second comparators (55, 56) compare the channel signal with relatively positive and relatively negative thresholds respectively and a bistable switching means (59) is coupled to the comparators to provide a digital signal. A reference comparator (64) controls an analog switch and diode pumps (70, 71) to adjust the thresholds in accordance with the amplitude of a signal excursion.
Patent EP-0506663-A1 (EP)
Inventor: LANGER FRIEDRICH H
IPC: E21B17/10
Filed: 1990-09-27
Abstract: Appareil destiné à être utilisé avec un élément tubulaire, lequel appareil comprend: un corps creux généralement cylindrique (11, 41, 61, 81, 110, 141, 151) possédant une surface interne de diamètre sensiblement uniforme, une surface externe, une première extrémité et une deuxième extrémité, le corps pouvant être disposé sur un élément tubulaire; une pluralité de nervures (16, 46, 66, 86, 116, 136, 156, 173, 174) s'étendant à partir dudit corps et espacées sur celui-ci; caractérisé en ce que la distance entre au moins une paire contiguë de nervures et/ou l'épaisseur du corps creux généralement cylindrique n'est pas uniforme sur toute la longueur de l'appareil.
Patent EP-0440220-A1 (EP)
Inventor: WATANABE RIKIZO
IPC: C22C38/00
Filed: 1991-01-31
Abstract: A heat-resistant ferritic cast steel having excellent thermal fatigue resistance, consisting, by weight, of 0.25 to 0.45% C, 0.3 to 2.0% Si, not more than 1.0% Mn, 17 to 22% Cr, at least one kind selected from the group consisting of not more than 6% Co and not more than 1.5% Ni, the amount of %Co + 3 %Ni being in the range of 1 to 6%, 0.001 to 0.1% of at least one kind selected from the group consisting of Y and rare earth elements, and the balance Fe and incidental impurities, the ferritic cast steel being composed of a structure in which a ferrite (c) and M₂₃C₆ carbide (b) are dispersed in δ ferrite (a). With this specific composition, even at high temperatures, there can be maintained the structure which has the a ferrite (c) and the M₂₃C₆ (b) dispersed in the δ ferrite (a), with the result that there is obtained an excellent thermal fatigue resistance, and in this structure, the transformation under heating will not occur even at a temperature of about 1,000°C. The steel of the present invention is particularly suited for a turbo rotor casing, an exhaust manifold, etc., of an automobile.
Patent EP-0459339-A1 (EP)
Inventor: ROUSSEAU EMMANUEL
IPC: H04L27/233
Filed: 1991-05-27
Abstract: The present invention relates to a digital signal processing device which comprises:     - an adder (61),   - a random-access memory (51), - a controlled inversion circuit (70) providing the absolute value (A), the true value or the opposite value (0) of the signal applied to its input, - a read-only memory (52) preserving in a location the square of the address of this location, - a first multiplexing circuit (41, 42) producing the first operand (M2) from, among other things, a digital sample (M1),   - a second multiplexing circuit (43, 44), - a sequencer (10) comprising means of selectively controlling the random-access memory (51), the controlled inversion circuit (70), the first (41, 42) and second (43, 44) multiplexing circuits, in such a way as to effect in particular a correction of the DC component and a frequency-translation on a sample, and a measurement of power on a series of samples.   <IMAGE>
Patent EP-0462539-A1 (EP)
Inventor: KAZATO HIROHIKO
IPC: H02P29/00
Filed: 1991-06-17
Abstract: The invention relates to a monitor system for a servo controller used in connection with servo motors utilized in multivarious machines, such as machine tools. In addition to detecting a servo system fault when the difference between the commanded position and the actual position exceeds a predetermined value, the system monitors several servo system parameters to distinguish between different causes of servo faults. Identifying the source of the fault leads to improved maintenance and decreased system down time when a fault occurs.
Patent EP-0469361-A1 (EP)
Inventor: VIEGENER WALTER
IPC: E03C1/22
Filed: 1991-07-12
Abstract: 2.1 The object of the invention is to provide a drainage fitting which securely seals off the installation space against penetrating waste water. 2.2 The solution is brought about in that the housing 4', for adaptation to basin bottoms of varying thicknesses, is constructed with a lifting region 3' and an insert body 1' is provided with at least one sealing edge 2', 2'' which extends outwards in the lifting region 3' and seals off an installation space 5', 5'', bounded by the housing 4' and the insert body 1', downwards against penetrating water. 2.3 Such a drainage fitting can be used especially in kitchen sinks. <IMAGE>
Patent EP-0514583-A1 (EP)
Inventor: PARENTI GIUSEPPE
IPC: E04H7/20
Filed: 1991-08-05
Abstract: Panels for forming circular basins above ground constituted by a curved wall (1) provided with vertical stiffening ribs (3) and, at the sides, polygonal connection joints designed to allow union between contiguous panels. 
     The panels have different inclinations of their lateral borders in relation to the radius of the basin to be formed, so that the elements (6, 7) forming the joint have contact surfaces perpendicular to the basin tangent in the junction point. 
     A plurality of horizontal ribbing (2) are provided, with holes (4) passing longitudinally and designed to permit the insertion and stretching of prestress cables.
Patent EP-0473973-A1 (EP)
Inventor: DAETWYLER MAX
IPC: B41C1/05
Filed: 1991-08-12
Abstract: The plate (1) has an external layer (4) joined to a base (2) via a metallic interlayer (3). Raster cups (5) are incorporated in the external layer (4) by means of laser radiation. The external layer (4) consists of a metal or a metal alloy, for example zinc or a zinc alloy, which makes it possible to form the raster cups (5) with a lower energy consumption and with a higher processing speed than is the case for an external layer (4) consisting exclusively of copper. <IMAGE>
Patent EP-0472165-A1 (EP)
Inventor: JEAN JAU-HO
IPC: H01B3/08
Filed: 1991-08-20
Abstract: A ceramic composition for forming a ceramic dielectric body having a dielectric constant of less than about 4.2. The composition is formed from a mixture of finely divided particles of 25-50 vol.% borosilicate glass and 50-75 vol.% high silica glass. The borosilicate glass comprises approximately 20-35 wt.% B₂O₃ and approximately 60-80 wt.% SiO₂. The high silica glass contains essentially 0.5-1 wt.% alumina, 1-5 wt.% B₂O₃ and approximately 95-98 wt.% SiO₂. The composition can be fired at a temperature of less than 1000°C.
Patent EP-0492057-A1 (EP)
Inventor: BIEBER HELMUT
IPC: F24C3/12
Filed: 1991-08-27
Abstract: In a gas cock (1) with a cock housing (2) and with a cock tap (3) which is rotatable in the housing via control cams (7, 8) at the free end (4') of a handle shaft (4), the handle shaft (4) being displaceable in its axial direction against the force of a spring to assume given control positions, a solution is to be provided, with which not only the rotation limitation is simplified, but with which, in particular, the takeover of other functions, such as the triggering of the ignition mechanism or the like, by a single additional component is also possible, this component being simple to manufacture and economical. This is achieved in that an essentially disc-shaped multifunction part (10) provided with control surfaces (10a, 10b) is provided in the region of the control cams (7, 8) of the handle shaft (4). <IMAGE>
Patent EP-0501009-A1 (EP)
Inventor: STEINER RUDOLPH
IPC: B23B29/034
Filed: 1991-10-04
Abstract: A boring head (B) with a longitudinal axis (7) includes a leading cutting portion (16) and a trailing portion (14). A pair of adjustable work engagement devices (20,22) are releasably secured to the leading portion (16) by individual fasteners (40,42). Individual mechanisms (62,72) for adjusting the position of each of the work engagement devices (20,22) in a first direction generally parallel to the longitudinal axis (7) of the boring head (B), and individual mechanisms (64,74) for adjusting the position of each of the work engagement devices (20,22) in a second direction, generally transverse to the first direction, are provided. The first and second direction adjusting mechanisms (62,64,72,74) are positioned coaxially of each other in the boring head. Each work engagement device (20,22) is adjustable in the first and second directions individually and independently of the other.
Patent EP-0536432-A1 (EP)
Inventor: URSTOEGER RUPERT
IPC: B62D13/06
Filed: 1991-10-08
Abstract: In order to operate a multi-sectional road vehicle in both directions of travel without special track-guidance devices with stable steering, the steering angle ( delta ) for the wheels of a trailing axle (A1, A2, A3) is influenced by at least one of the two articulation angles ( beta ) between the adjacent vehicle sections (1, 2; 2, 3) with the aid of mechanical and/or hydraulic transmission means (4, 5, 6); for the kinetically stable main direction of travel (20), the steering ratio between the articulation angle ( beta ) and the steering angle ( delta ) is chosen such that the centre point (M) of the turning circle is located in the point of intersection of the perpendicular lines (S1, S2, S3) on the centres of the longitudinal centre sections (L1, L2, L3) of the adjacent vehicle sections (1, 2, 3); for the opposite direction of travel, the steering ratio is changed, the steering angle ( delta ) becoming larger in relation to the articulation angle ( beta ). <IMAGE>
Patent EP-0492517-A1 (EP)
Inventor: OGAWA HIROYUKI
IPC: B32B15/01
Filed: 1991-12-20
Abstract: An alloy exhibiting corrosion resistance in a combustion environment where V, Na, S and Cl are present comprises, in weight percent, not more than 0.05% C, 0.02 - 0.5% Si, 0.02 - 0.5% Mn, 15 - 35% Cr, 0.5 - 4% Mo, 10 - 40% Co, 5 - 15% Fe, 0.5 - 5% W, 0.0003 - 0.005% Ca and the remainder of Ni at a content of not less than 4% and unavoidable impurities, provided that Cr (%) + 0.5Ni (%) + 3Mo (%) ≧ 30 (%) and Ni (%) + 0.5Co (%) > Cr (%) + Mo (%) + W (%). A composite steel tube exhibiting corrosion resistance in a combustion environment where V, Na, S and Cl are present comprises an inner tube constituted of Cr-containing boiler tube and an outer tube constituted of the alloy.
Patent EP-0493839-A1 (EP)
Inventor: HERGENROTHER WILLIAM L
IPC: C08K3/00
Filed: 1991-12-30
Abstract: An anionic polymerization initiator comprising the reaction product of a an organatin halide and lithium in a suitable solvent. Elastomeric polymers prepared with these initiators have tin containing functional groups on substantially every polymer chain and provide vulcanizable rubber compounds exhibiting reduced hysteresis. Articles such as tires, produced with low hysteresis elastomeric polymers have lower rolling resistance. Methods are also provided for preparing the initiators and the elastomers having reduced hysteresis properties.
Patent EP-0440427-A1 (EP)
Inventor: SMYTH FRIEDA MARIA
IPC: A61M25/00
Filed: 1991-01-30
Abstract: A package for a catheter includes a tray (1) for accommodating the luer fitting and shaft of a catheter (4) and a curve retention insert (6) for securely retaining the curve portion of a catheter in a track (7) formed in the insert (6). The tray (1) is adapted to retain the insert (6) during storage. The tray (1) and insert (6) are arranged so as to enable the curve retention insert (6) to be slidable along the longitudinal axis of the tray (1), whereby the catheter (4) may be withdrawn from the package by sliding the catheter (4) and curve retention insert (6) along the tray (1), luer fitting leading, and out of an enveloping pouch.
Patent EP-0444879-A1 (EP)
Inventor: O'RELLY EDWARD PATRICK
IPC: F24D19/08
Filed: 1991-02-26
Abstract: A control-valve for controlling fluid-flow comprises a valve-housing (3) having inlet and outlet ports (11,12) for connection to a fluid-flow system, inlet and outlet passages (13,14) communicating with the inlet and outlet ports (11,12) and a valve-member (22) controlling the flow of fluid from the inlet passage (13) to the outlet passage (14); a shut-off device (35) is provided in association with the inlet passage (13) for interrupting fluid-flow therein when required, and the outlet passage (14) is provided with a drain-port which is normally closed by a closure plug (43) which can be released when required, to allow fluid to be drained from the outlet passage (14) to the exterior.
Patent EP-0469710-A1 (EP)
Inventor: SATO KEIJI
IPC: C23F1/02
Filed: 1991-06-24
Abstract: A method of manufacturing a low-core-loss grain oriented electrical steel sheet. Thread-like grooves are formed in a cold-rolled grain oriented electrical steel sheet having a final thickness of about 0.27 mm or less in a direction within the range of about 30° from the direction perpendicular to the rolling direction. The grooves and sheet satisfy the equation  
log d ≧ 0.6Ra + 0.4  
where d is the groove depth (µm), and Ra is the mean surface roughness of the steel sheet cold-rolled to final gauge. The steel sheet is thereafter decarburization annealed and final texture annealed.
Patent EP-0470868-A1 (EP)
Inventor: BAUMGARTEN ROBERT W
IPC: B21J1/00
Filed: 1991-08-12
Abstract: A hole in a metal component such as a gas turbine rotor flange (3) of superalloy or titaniurn is repaired by enlarging the hole to a uniform diameter (5), inserting a plug (6), of the same or similar material and heat treatment in the enlarged hole (5) and applying sufficient pressure (9,10) to the plug and heating the plug and the surrounding material to forge join the plug and the walls of the hole whereby a fully recrystallized joint interface is achieved between the plug and the walls of the hole. Excess material is removed.
Patent EP-0484098-A1 (EP)
Inventor: WOLTJER BERNARD H
IPC: B65G47/26
Filed: 1991-10-29
Abstract: An accumulation conveyor (30) includes a plurality of powered rollers (34) that are selectively actuatable in a series of zones in order to convey product to the receiving conveyor (28) at a generally constant rate. A product sensor (36) associated with each zone senses the presence of product in that zone, and a control system that is responsive to the product sensor actuates all of the zones upstream of any sensor that is not sensing product in order to transport product to the receiving conveyor (28) without singulation, yet provide an accumulation capability. The control is pneumatic and uses pilot-actuated valves (66, 66′) configured in a manner that connects the associated roller drive actuator (44, 44′) directly with a source of pneumatic fluid (58) in order to provide an exceptionally fast response.
Patent EP-0529166-A1 (EP)
Inventor: OKADA IZUHO
IPC: C08J3/09
Filed: 1991-12-23
Abstract: An electrorheological fluid comprising a dispersed phase of dielectric particles having an average particle diameter in the range of from 1 to 50 microns, a sipersion medium of an electrically non-conducting oil, and an additive, said additive being a copolymer (I) obtained by polymerizing a raw-material monomer mixture having as essential components thereof a polymerizable monomer (A) such as (meth)acryloyl group-containing poly(ethylene glycol) and at least one polymerizable monomer (B) selected from the group consisting of cross-linking monomers and silicone type polymerizable monomers and optionally containing another polymerizable monomer (C).