baber/WOPTO huggingface dataset:
Patent EP-0190859-A2 (EP)
Inventor: EPWORTH RICHARD EDWARD
IPC: G02B6/00
Filed: 1986-01-27
Abstract: A coherent optical time domain reflectometer of the kind including a light source (10), an optical coupling means (13) whereby light from the source is coupled into an optical transmission medium (14) and light reflected from the transmission medium is mixed together with a reference optical signal and is coupled to a detector (18). The coupler (13) is a 3 x 3 coupler with the mixed reflected light and reference signal being coupled out via two adjacent outputs to two respective inputs (16, 17) of a balanced detector (18).
Patent EP-0210067-A2 (EP)
Inventor: HEMINGWAY THOMAS K
IPC: H03H11/46
Filed: 1986-07-21
Abstract: The drain-to-source resistance of a field-effect transistor (FET) can be used as a variable resistor controlling say the gain of an AGC amplifier, the AGC signal being applied to the gate of the FET. However, the resistance is dependent not only upon the gate drive but also on the device characteristics which vary even from one sample to another of the same device type. Thus, replacing the FET in say an AGC amplifier may well change the amplifier characteristics. Similarly, it may be difficult to ensure that multiple reproductions of the amplifier operate uniformly. Herein, an FET of which the drain-to-source resistance controls the gain of an amplifier is implemented as one of two matched FET's in a dual FET device, the same drive signal is applied to both FET's and this drive signal is formed by a feedback circuit which sets the drive signal to maintain the current through the second FET dependent upon a received input signal and to maintain the potential across the second FET constant. As a result the resistance of each FET becomes dependent only upon the received signal not upon its inherent characteristics. The principle can be applied to other circuits, eg variable filters, and other resistance defining components, eg photo-resistors. Also, disclosed is an embodiment where only one FET is used and this is connected alternately first to a feedback circuit which derives and stores the proper signal and then to the 'user' circuit to be controlled by the FET.
Patent EP-0219978-A2 (EP)
Inventor: CUTLER LARRY P
IPC: B29C55/02
Filed: 1986-09-19
Abstract: A microporous liquid impermeable but vapor permeable sheet material useful as a backsheet for disposable absorptive devices such as disposable diapers, incontinent devices, sanitary napkins, and panty liners is disclosed. This backsheet provides unexpected useful attributes such as compatibility with available closure tapes and embossibility with translucent patterns.
Patent EP-0220022-A2 (EP)
Inventor: ANZAI SHUNJU
IPC: G03B27/62
Filed: 1986-10-08
Abstract: In a document size detection apparatus having a plurality of sensor portions including light emitting devices and photodetector devices disposed in the vicinity of an original table for detecting the size of a document such as an original mounted on the original table by means of reflected light or transmitted light, a comparator for comparing the output level of the sensor portion with a reference level, and decision means for deciding the document size depending on the output signal of the comparator, disclosed is the document size detection apparatus comprising a circuit changing the reference level for the comparator and detecting the resultant output of the comparator for finding the condition in which the reference level becomes equal to the output level of the sensor portion and a storage circuit for storing the value representing that condition, which are used in the adjustment mode without a document mounted on the original table, and a reference level setting circuit for setting the reference level to be input to the comparator depending on the value stored in the storage circuit, which is used in the document size decision mode for detecting the size of a document mounted on the table.
Patent EP-0223758-A2 (EP)
Inventor: BACKLUND ULF E H H
IPC: G01N30/24
Filed: 1986-10-09
Abstract: The invention relates to apparatus for manipulating small quantities of liquid, comprising at least one test tube (1, 2) for accommodating the quantity of liquid, a cannula (10) which can be inserted into the vessel, and a control arrangement (6, 21) for controlling the system vessel and cannula in relation to one another in a manner such as to bring the cannula to the bottom of the vessel. In accordance with the invention, the cannula is provided with a suspension means (9,11, 12) which is connected to a mechanical or electronic sensor arrangement (22) which records pressure acting axially on the end of the cannula. When pressure is detected, the control arrangement halts further insertion of the cannula into the vessel.
Patent EP-0240659-A2 (EP)
Title: N-substituted 3,4,5,6-tetrahydrophthalimides and their precursors
Inventor: PLATH PETER DR
IPC: C07C205/44
Filed: 1987-02-02
Abstract: The N-substituted 3,4,5,6-tetrahydrophthalimides and their precursors have the general formula I 
<IMAGE>
 in which the substituents have the following meaning:
 A is -NO2, -NH2 or 
<IMAGE>
 corresponding to the compounds Ia, Ib and Ic,
 A is -NO2, -NH2 or 
<IMAGE>
 corresponding to the compounds Ia, Ib and Ic,
 B is -CH2-, -CH2-CHR<1>-, -CH2-CHR<1>-CH2-, -CH=, -CH=CR<1>- or -CH=CR<1>-CH=, where the radical R<1> is -H, -Cl, -Br or -CH3,
 D, depending on the terminal group of B, is -CH<2bR> or =C<2bR>,
 X is -H, -Cl or -Br,
 Y is -H, C1-C7-alkyl, -Cl, -Br, -CN, CONH2 or -CO2R<2>, in which the radical R<2> is H, C1-C6-alkyl, C5-C6-cycloalkyl, C1-C4-alkoxy- C2-C4-alkyl, C1-C4-alkylmercapto-C2-C4-alkyl, propargyl, benzyl,  alpha -phenylethyl,  alpha -phenylpropyl, C2-C4-alkyl which is up to trisubstituted by F or Cl, or allyl which is substituted by -CH3 or -Cl,
 Z is -COOR<2>, -CONR<3>R<4>, 
<IMAGE>
 or -COR<2>,
 in which the radicals R<3> and R<4> are H or C1-C4-alkyl or together form a cycloaliphatic 5- or 6-membered ring whose carbon chain may be interrupted by an oxygen atom.
Patent EP-0244781-A2 (EP)
Inventor: DAVIDSON MARK
IPC: G01N21/88
Filed: 1987-05-01
Abstract: A specially adapted Linnik microscope is used in combination with a video camera, a wafer transport stage and data processing electronics to form a novel inspection apparatus based on the use of the two beam interference microscope. The apparatus can utilize either broad band or narrow band light to develop a plurality of interference images taken at different axial positions relative to the surface under investigation. The point-by-point brightness along scan lines across such images is then used to develop data which is proportional to the degree of coherence (or to the fringe amplitude, the variance of the fringes, or the amplitude of oscillation of the fringes) as the optical path difference is varied in a two beam optical or acoustic microscope.
Patent EP-0246635-A2 (EP)
Inventor: NAKAYAMA MAKOTO
IPC: H01Q3/08
Filed: 1987-05-20
Abstract: In a satellite tracking control system, a receiver derirves a pair of elevation (EL) and cross-elevation (XEL) tracking error signals having a quadratic relationship in a coordinate system from a signal received from a polar-orbital satellite. Elevation and cross-elevation motors are respectively controlled in response to the elevation (EL) and cross-elevation (XEL) tracking error signals. An azimuth controller derives an azimuth control signal from angle data representing the angles of the antenna about the azimuth, elevation and cross-elevation axes detected by angle detectors. Preferably, the antenna is rotatable about the elevation (EL) axis in the range between zero and l80 degrees.
Patent EP-0253146-A2 (EP)
Inventor: WURTMAN RICHARD J
IPC: A61K31/135
Filed: 1987-06-16
Abstract: © D-fenfluramine is administered to a human patient having seasonal depression or other forms of bipolar depression in order to alleviate or cure the depression. The invention provides the respective medicaments.
Patent EP-0255686-A2 (EP)
Inventor: MAYR ERNST ING
IPC: G02B6/44
Filed: 1987-07-28
Abstract: A method and apparatus for the manufacture of optical transmission elements comprising a bundle of at least one light waveguide lead having a coating of filling material and receiving an outer envelope, characterized by the method, including applying a first coating of filling material to the bundle, stripping a portion of the material from the coated bundle, applying a second coating and then, subsequently applying the envelope. By stripping a portion of the first coating of filling compound or material, air or gas bubbles in the filling compound will be stripped from the coated bundle and reduce the chance of damage to the light waveguide leads.
Patent EP-0258704-A2 (EP)
Inventor: HOLZINGER WALTER DR
IPC: C06C5/06
Filed: 1987-08-13
Abstract: Um eine möglichst konstante Verzögerungszeit zu erhalten, ist zwischen einem pyrotechnischen Verzögerungssatz (1) und dem Verzögerungsröhrchen (2) ein Zwischenraum (3) vorgesehen.
Patent EP-0260696-A2 (EP)
Inventor: ITOH NORIO C O NEC CORPORATION
IPC: H04B7/14
Filed: 1987-09-17
Abstract: In a repeater station (20) for receiving a first downward signal from a next preceding station (21) with a propagation delay and for transmitting a second downward signal to a next succeeding station, a first delay circuit (15) gives a fixed delay to the first downward signal to produce a delayed signal for use as the second downward signal. The first downward signal has a frame period and includes a reference signal and a number signal representative of an integer for the repeater station. The fixed delay is rendered equal to an integral submultiple of the frame period minus the propagation delay. A first detector (17) detects the reference signal to produce a first detection signal. A second detector (23) detects the number signal to produce a second detection signal representative of the integer. Responsive to the second detection signal, an internal delay circuit (24) gives an internal delay to the first detection signal to produce a delayed detection signal. The internal delay is decided in consideration of the integer. Responsive to the delayed detection signal, a multiplexer (25) processes a first upward signal received from the succeeding station into a processed signal. A second delay circuit (26) gives the fixed delay to the processes signal to produce a second upward signal which should be received by the   preceding station with the propagation delay. The repeater station may be used as a terminal station.
Patent EP-0261662-A2 (EP)
Inventor: TAMURA TAKAAKI
IPC: G21F9/02
Filed: 1987-09-23
Abstract: A method for the removal of iodine from a mixture gas or vapor, in which iodine is removed as a sediment of an insoluble iodine compounds by bringing the mixture gas or vapor into contact with a solution containing silver ions, is disclosed.
Patent EP-0261670-A2 (EP)
Inventor: HASHIMOTO KOJI
IPC: C22C9/00
Filed: 1987-09-23
Abstract: A highly corrosion-resistant amorphous Ni-Cu-Ti-Ta, Ni-Cu-­Ti-Nb and Ni-Cu-Ti-Ta-Nb alloys in which the sum of Ti and Ta and/or Nb is 30-62.5 atomic%.
Patent EP-0261721-A2 (EP)
Title: Hydraulic or pneumatic drive device
Inventor: BEULLENS THEOPHILE
IPC: F15B15/10
Filed: 1987-09-11
Abstract: The device comprises on the one hand at least one substantially tightly-sealable chamber (1), which is bound partly at least by a wall (1ʹ) from an approximately resiliently distortable material, and on the other hand flexible, approximately unstretchable spiral-wound filaments (5,6) which extend substantially next to one another at least about said wall (1ʹ), whereby part (6) of said filaments are wound rightwards and another part (5) thereof leftwards, and this in such a way that two arbitrary crossing filaments (5 and 6) may undergo some angular displacement relative to one another, and the one end each said filaments (5,6) on the one side of said chamber (1) is fixed relative to a working point (9), and the other end thereof on the opposite side of said chamber (1) is fixed relative to another working point (10), and whereby further at least one feed opening (3) is provided in said chamber (1), wherethrough a pressurized gas or liquid may be fed and said wall (1ʹ) is distortable at leas along one direction cross-wise to the line joining both said working points (9 and 10), in such a way that by regulating the gas or liquid pressure inside the chamber (1), a relative displacement of said working points (9 and 10) occurs.
Patent EP-0273519-A2 (EP)
Inventor: BROEKHUIS ANTONIUS AUGUSTINUS
IPC: C08C19/00
Filed: 1987-12-16
Abstract: Process for introducing a conjugated diolefin linkage in an elastomeric polymer by (a) reacting the polymer having an active group containing an alkali metal atom with a 2,3-ethylenically unsaturated aldehyde or ketone to produce an alkali metal salt, (b) converting this salt into the corresponding alcohol, and (c) dehydrating this alcohol.
Patent EP-0243153-A2 (EP)
Inventor: CERRETTI DOUGLAS PAT
IPC: C07K14/535
Filed: 1987-04-22
Abstract: Human granulocyte colony stimulating factor (hG-CSF) and related mutant cDNAs and proteins are disclosed, characterized by molecular modifications increasing expression in microbial systems. Related aspects concern recombinant yeast and bacterial expression vectors for producing the proteins in high yield, and processes for making the proteins using microbial expression systems.
Patent EP-0246054-A2 (EP)
Inventor: MIYAMOTO TAKEHIKO
IPC: H03M1/24
Filed: 1987-05-11
Abstract: Position encoders include a rotary disc or sliding member (20) for moving by an amount proportional to movement of a body to be controlled and having a recording material layer on a surface thereof, and a write/read head (10) or sensor (106) arranged at a position opposing the layer for writing position information (X,Y,Z) into the data-carrier layer that is coupled to the body to be controlled and for reading written information therefrom. The body is positioned at a control position, control position information (D) for controlling the body is written by a writing portion of the magnetic head write-in transducer at a corresponding position on the rotary disc or slide, and the written control position information is subsequently detected by a reading portion (11) of the magnetic head or sensor, thereby detecting arrival of the body to be controlled at a desired control position.
Patent EP-0253667-A2 (EP)
Inventor: KITAMURA SHUJI
IPC: C08J5/18
Filed: 1987-07-16
Abstract: A linear polyethylene (100 wt parts) of low density of 0.870 to 0.915 g/cc and containing 15 to 50 wt% of components extractable with xylene at 25±1°C and a weight average molecular chain length of 1,000 - 9,000 Ångstroms is mixed with 50-400 parts of an organic or inorganic filler (e.g. calcium carbonate, barium sulfate or talc) and optionally to help dispersion of the filler 0.5-8 parts of a nonionic surfactant (e.g. a glycerine or sorbitan ester of a C12-22 fatty acid) and the mixture is molded into a film. 
     The film is stretched either (a) uniaxially at 30-80°C at a stretch ratio of 1.2-8 in the mechanical direction or (b) biaxially at 40-100°C at a ratio of 1.1-8.0 in the mechanical direction and then at 70-100°C at a ratio of not above 6.0 transversely; optionally a heating setting treatment is then applied. 
     The resultant film formed from the stretched composition is breathable to a high extent and has good strength, touch and appearance.
Patent EP-0254492-A2 (EP)
Inventor: NORTON DAVID JOHN
IPC: B61L19/06
Filed: 1987-07-17
Abstract: A railway signalling system includes a plurality of trackside equipments (11,12) and means (1,2,3,4,6,15,16) for transmitting control information to the equipments and receiving status information therefrom, each of the trackside equipments being provided with a respective microprocessor (13 or 14) via which such control information is transmitted from the said means to the equipment and via which such status information is received by said means from the equipment.
Patent EP-0255361-A2 (EP)
Inventor: WRIGHT PETER V
IPC: G10K11/36
Filed: 1987-07-29
Abstract: An ST cut quartz crystal for surface acoustic wave device application defined by the Euler angles lambda (λ) equal to substantially 0°, mu (µ) equal to substantially 132.75° and with an acoustic wave propagation direction theta (ϑ) equal to substantially plus or minus 25°.
Patent EP-0262852-A2 (EP)
Inventor: BALDWIN JOHN J
IPC: A61K31/40
Filed: 1987-09-22
Abstract: Prodrugs of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors which are useful as antihypercholesterolemic agents and are represented by the following general structural formula (I):
     and pharmaceutically acceptable salts thereof are disclosed.
Patent EP-0241332-A2 (EP)
Inventor: LEQUIME MICHEL RENE
IPC: G01D5/26
Filed: 1987-03-13
Abstract: Procédé et dispositif de détection à distance de grandeurs physiques, mettant en oeuvre un multiplexage et un démultiplexage de signaux issus de différents capteurs, dans lesquels une source (10) de lumière incohérente éclaire par des fibres optiques (12, 14) des capteurs C 1, C 2, ... associés à des dispositifs de codage D C 1, D C 2 réalisant une modulation périodique de la lumière transmise par chaque capteur à une fréquence caractéristique du capteur considéré, des moyens de démultiplexage (20) étant prévus pour réaliser par transformation de Fourier une démodulation des signaux issus des différents capteurs et repérer chaque signal par sa fréquence caractéristique de modulation.
Patent EP-0256982-A2 (EP)
Inventor: SPINDLER FELIX
IPC: C07C217/84
Filed: 1987-07-29
Abstract: Asymmetric hydrogenation of prochiral N-arylketimines to give optically active secondary amines at a temperature of -20 DEG  to 80 DEG  C., a hydrogen pressure of 105 to 6.106 Pa with the addition of catalytic amounts of an iridium compound of the formula III or IIIa [XIrYZ](III) or [XIrY(+)A(-)(IIIa) in which X is two olefin ligands or one diene ligand, Y is a chiral diphosphine, the secondary phosphine groups of which are linked by 2-4 C atoms and which, together with the Ir atom, forms a 5-, or 6- or 7-ring, or Y is a chiral diphosphinite, the phosphinite groups of which are linked via 2 C atoms and which together with the Ir atom forms a 7-ring, Z is Cl, Br or I and A63  is the anion of an oxygen acid or complex acid, and if appropriate with the addition of an ammonium or alkali metal chloride, bromide or iodide.
Patent EP-0284744-A2 (EP)
Inventor: SWAROVSKI HELMUT DIPL-ING
IPC: G04B37/22
Filed: 1988-02-10
Abstract: An ornamental clock comprising an ornamental glass body (1) which has a recess (7) in which a mount (8) is disposed. In the mount (8) there is a removable clock (2) which has a clock case (21) on whose outer wall (19) there are set wheels (14).
Patent EP-0295379-A2 (EP)
Inventor: DANIEL ARTHUR AULDEN
IPC: G06F15/00
Filed: 1988-04-12
Abstract: The construction and display of operator messages representative of alert conditions in a network is described. Code points, which are strings of bits, are generated in response to an event in a device attached to the network. The code points are used to index predefined tables that contain relatively short units of text messages in operator selectable languages to be used in building an operator's information display. A product attached to a network, an alert sender, will generate a series of code points representative of desired display messages for an operator. The messages are independent of the specific alert sending product insofar as an alert receiver is concerned. The operator can also choose between detailed and general display messages. The code points are hierarchically arranged so that if the alert receiver does not have the most up to date set of messages, the alert receiver will display a more generic message which is still representative of the event.
Patent EP-0324894-A2 (EP)
Inventor: PELZER HELMUT
IPC: F16H57/00
Filed: 1988-07-21
Abstract: The axle is designed as a hollow axle. Its inner wall is coated with a layer of viscoelastic material against which a coaxial cylindrical element is applied in a non-positive manner. The cylindrical element can be of solid design or likewise be designed as a hollow shaft with or without a spiral slot. To apply the layer of the viscoelastic material, the hollow shaft is subjected to a dipping operation. The cylindrical element is incorporated with a reduced diameter or by pressing. <IMAGE>
Patent EP-0308726-A2 (EP)
Inventor: MASAKI AKIRA
IPC: H01L23/528
Filed: 1988-09-07
Abstract: A wafer scale integrated circuit wherein at least one of a plurality of functional blocks (2) formed on a semiconductor wafer (1) has its internal defects repaired and has an area which is at least 2.3 cm². The integrated circuit permits the use of a functional block having an area that is much greater than that of the conventional blocks. Therefore, the total length of wirings among the blocks can be shortened to simplify the complex wiring process, the total number of wiring layers can be reduced, and the signal propagation delay time can be shortened, too, making it possible to realize a high packaging density with low redundancy.
Patent EP-0311915-A2 (EP)
Inventor: HARRINGTON ROBERT
IPC: A43B13/42
Filed: 1988-10-07
Abstract: An article of footwear comprises an upper, a flexible metal midsole and outsole. Between the flexible metal midsole and the outsole is located an internal arch-reinforcement member or "digging-plate". 
     The "digging-plate" may be made of a rigid plastics material, suitably a fibre-reinforced plastics material.
Patent EP-0313066-A2 (EP)
Inventor: HAVENS MARVIN R
IPC: B29K105/00
Filed: 1988-10-21
Abstract: A blow molded container provides protection for electrically sensitive devices by including antistatic agents in the outer layer and electrically conductive agents in the inner layer of a multilayer parison used to form a container. The invention renders the use of separate antistatic foam pads unnecessary by providing an antistatic surface in the container when closed.
Patent EP-0322964-A2 (EP)
Inventor: KNIGHT PAUL ANTHONY
IPC: G01R19/165
Filed: 1988-12-19
Abstract: A circuit for detecting when the voltage between a pair of supply conductors (1,2) rises above a first predetermined level and subsequently falls below a second predetermined level comprises a pair of emitter-coupled transistors (3,4) supplied from the conductors. The base of one transistor (3) is fed with a constant voltage relative to one supply conductor (1) by means of a Zener diode (9) and the base of the other transistor (4) is fed from the collector of the one transistor to give a hysteresis effect via a voltage divider (11,12,13). The arrangement has two states in each of which one transistor is on and the other is off, which transistors these are signifying the relevant state. The arrangement changes state when the supply voltage rises above the first predetermined level and when it subsequently falls below the second predetermined level.
Patent EP-0297824-A2 (EP)
Inventor: JOB ROBERT CHARLES
IPC: C08F4/64
Filed: 1988-06-28
Abstract: A method for making crystalline magnesium halide particles for use in preparing catalysts usable in the polymerization of alpha olefins, which particles have the formula Mg n E m X p .yROH, wherein E is a metal, X is halogen, ROH is an alcohol, n is a number from 0.25 to 6, m is 0 or 1, p is a number from 2n to (am+2n), where a is the valence of the metal E, and y is a positive number of up to 6, comprises contacting a magnesium compound of the formula Mg n E m X p , wherein the various symbols are as defined herein, or precursor(s) thereof, with an alcohol of the formula ROH to form a solution thereof, heating the solution to remove any water present by azeotroping, and contacting the heated solution with an inert hydrocarbon liquid to precipitate crystalline particles. 
     Procatalysts are formed by melting the crystalline particles and adding appropriate amounts of a porous support to the molten particles to form supported particles, and halogenating and treating the supported particles. When the procatalysts are used in conjunction with a cocatalyst, such as an organoaluminum compound, olefin polymers of improved morphology can be produced.