baber/WOPTO huggingface dataset:
Patent EP-0262668-A2 (EP)
Inventor: MAEDA TAKANORI
IPC: G11B7/1392
Filed: 1987-09-30
Abstract: An astigmatism generator such as may be used in the pickup of an optical disk player which produces substantially no other aberrations yet which can be manufactured at a low cost. The astigmatism generator is fabricated from a plate (21) having four plane surfaces, including a first surface (22) through which light is introduced,a second surface (23) parallel to the first surface and through which the light exits, and a third surface (24) by which light transmitted thorough the first surface is reflected toward the second surface. The third surface is arranged at an oblique angle (α) to the first and second surfaces and is selected such that almost all coma is eliminated from the light passing through the second surface.
Patent EP-0269843-A2 (EP)
Inventor: WESTPHAL ROBERT DR
IPC: G01S7/40
Filed: 1987-10-26
Abstract: Eine Prüfeinrichtung (11), wie sie insbesondere für Suchköpfe (13) intelligenter Lenkmunition (21) bekannt ist, soll bei verringertem apparativem Aufwand insbesondere hinsichtlich des Antennen-Arrays einen realistischeren Test des Suchkopfes (13) und seiner Signalverarbeitungseinrichtung (24) ermöglichen, was insbesondere den im Prüfbetrieb realisierbaren Scan-Winkel und die Endphasen-Bewegung bei der Zielannäherung betrifft. Dafür wird einerseits der Suchkopf (13) und andererseits der Zielsimulator (20) jeweils im Brennpunkt (14) eines quasioptischen Abbildungssystems (15) positioniert, das vorzugsweise aus zwei über Parallelstrahlen (18) gekoppelten parabolischen Hohlspiegeln (19) besteht. Nun kann der Suchkopf (13) über die gesamte Spiegelfläche und damit in einem sehr großen Raumwinkel verschwenkt werden, ohne daß die Erfassung des Zielsimulators (20) verloren geht, weil dieser im anderen Brennpunkt (14) liegt.
Patent EP-0269165-A2 (EP)
Inventor: DE JONG JOB
IPC: F04C2/344
Filed: 1987-11-09
Abstract: A liquid flow meter, comprising a housing 1 with a cylindrical cavity 2 of non-circular cross section and a rotor 5 placed centrally in the cavity. The rotor is provided with one ore more pairs of radial slits 6 which are diametrically opposite each other. Each slit accommodates a radially displaceable blade 7. A rod 8 extends between the blades of a pair through a bore in the rotor. To make the design of the flow meter simpler and to improve the linearity the ends of the rod 8 only engage with the blades 7, without being connected to the blades.
Patent EP-0233712-A2 (EP)
Inventor: KARLEN JAMES P
IPC: B25J17/02
Filed: 1987-01-27
Abstract: A digitally-controlled industrial robot comprises a set of unitized and integrated joint drive modules (2,4,6,8,10,12,14) which can be assembled in series to form a manipulator arm. The joints are of two basic types, pitch joints (4,8,12) and roll joints (2,6,10,14) the latter providing rotation about the longitudinal axis of the manipulator and the pitch joints providing rotation about axes which are substantially perpendicular to and offset from the roll joint axes. Any number of joints may be assembled to form the manipulator, permitting the manipulator to have a kinematically-redundant configuration. In one preferred form, a servocontrol derives feedback from sensing the motive force on a driven member and compensates the drive signal accordingly. More particularly, the torque exerted on each roll and pitch joint is measured and used for feedback to provide stability and optimum bandwidth for the servomechanism.
Patent EP-0249324-A2 (EP)
Inventor: TRUE RICHARD BROWNELL
IPC: H01J23/027
Filed: 1987-04-30
Abstract: A high-power switch tube (10) is shown constructed from a plurality of electron guns each having a cathode (12) and an anode (32). Between the cathode and anode is mounted a shadow grid (22) closest to the cathode beyond which is mounted a control grid (26), a screen grid (28), and, in some applications, a suppressor grid (30). Each anode (32) is formed with an anode cavity (34) having an opening (36) that is smaller in dimension than the largest dimension of the cavity, thus forming a Faraday cage collector which prevents secondary emission problems.
Patent EP-0254404-A2 (EP)
Inventor: LYONS LARRY ALBERT
IPC: C02F1/50
Filed: 1987-05-27
Abstract: A method of controlling the fouling potential of macroinvertebrates in aqueous systems which comprises adding to the system a water-soluble quaternary ammonium salt having the following structure:
     wherein R₁ is an alkyl group having about 6 to 24 carbons; R₂ is an alkyl, aryl or arylalkyl group having about 6 to 24 carbons; R₃ and R₄ are alkyl groups having about l to 4 carbons; and X is chloride, bromide, sulfate, bisulfate, nitrate, or acetate.
Patent EP-0248586-A2 (EP)
Inventor: MARYANOFF CYNTHIA ANNE
IPC: C07C381/14
Filed: 1987-05-27
Abstract: An efficient synthesis of quanidines, e.g. of the formula (III), by oxidizing a thiourea, e.g. of the following formula (II):
      with H₂O₂ and a molybdenum catalyst to yield an aminoiminomethane sulfonic acid which can then be reacted with an amine followed by optional transamination steps.
Patent EP-0252606-A2 (EP)
Inventor: BROWNAWELL DARRELL WILLIAM
IPC: C10G27/04
Filed: 1987-06-05
Abstract: The cetane number of a middle distillate fuel fraction is increased by contacting said fraction with oxygen or oxidant, in the presence of a catalyst, for a time sufficient to increase the cetane number. The catalyst selectively oxidizes benzylic carbon atoms present in the fuel to ketones. The fuel is preferably hydrorefined before being selectively oxidized.
Patent EP-0262814-A2 (EP)
Inventor: STEERE ROBERT E
IPC: B24D5/12
Filed: 1987-09-07
Abstract: The saw blade mount is provided with a stabilizer blade mount (29) for imposing an axial force on the saw blade (10) to eliminate unevenness in the saw blade. The stabilizer blade (29) includes a stabilizer ring (30) on which a gasket ring (31) of plastic or elastomeric material is mounted to abut against the saw blade (10) and which faces an opposing surface of an inner clamping ring (17). Adjustment screws (35, 39) permit adjustment of the stabilizing ring (30) relative to the saw blade (10) either completely about the periphery or only at localized regions.
Patent EP-0256970-A2 (EP)
Inventor: KURANDT FRITZ
IPC: G01J3/50
Filed: 1987-07-30
Abstract: Es wird eine Vorrichtung zur schnellen Farbmessung an unterschiedlichen Proben vorgeschlagen, die einen Sender (1) zum Bestrahlen oder Durchstrahlen der jeweiligen Probe (12) und einen Empfänger zum Empfangen der von der Probe reflektierten oder durch die Probe transmittierten Strahlung und eine Filteranordnung aufweist. Weiterhin ist ein REchner zur Auswertung der vom Empfänger gelieferten Signale vorgesehen. Der Sender wird von mehreren Halbleiterstrahlungsquellen (6,7,8) gebildet, die in unterschiedlichen Spektralbereichen abstrahlen und deren optische Strahlung über eine Filtereinheit (9,10) zusammengeführt und durch eine Linsenanordnung (11) auf die Probe gelenkt wird. Eine Ansteuereinheit (2) steuert die Halbleiterstrahlungsquellen nacheinander impulsweise an. Die Ansteuereinheit liefert außerdem ein Signal, das eine Zuordnung der Empfängersignale zu der in den unterschiedlichen Spektralbereichen abgesandten Strahlung erlaubt.
Patent EP-0275978-A2 (EP)
Inventor: SARIN VINOD K
IPC: C04B41/87
Filed: 1988-01-19
Abstract: A process for producing a wear resistant article (30), such as a cutting tool. Gaseous halides of two or more of aluminum, zirconium, and yttrium with other reactants are passed over a cemented carbide or hard ceramic substrate (12) at 900°-1250°C for the cemented carbide substrate or about 900°-1500°C for the hard ceramic substrate, and 1 torr to about ambient pressure to form a composite ceramic coating (32) on the substrate (12). The coating (32) is a continuous first-phase metal oxide matrix (24) having particles (34) of at least one different metal oxide dispersed therein. In a preferred process, one or more of the metal halides is pulsed into the gaseous mixture containing a different metal halide to control the deposition of the particles.
Patent EP-0287762-A2 (EP)
Inventor: HARA SHIGEYOSHI
IPC: C08G61/08
Filed: 1988-02-13
Abstract: A cross-linked copolymer containing repeating units derived from a mixture comprising the following monomers:
     or
     and occasionally other repeating units derived from other metathesis polymerizable cyclic compounds such as dicyclopentadiene, a process for producing the copolymer, a process for producing a molded article from the copolymer and a polymerizable composition therefor.
Patent EP-0282033-A2 (EP)
Inventor: DOUGHERTY THOMAS JOHN
IPC: H02J7/16
Filed: 1988-03-09
Abstract: A 24/12 volt battery power supply for a vehicle includes two 12 volt batteries connected in series, and having first and second 24 volt terminals to the opposite ends of the batteries and a 12 volt terminal to the center common connection of the batteries. The 12 volt loads are divided into equal right and left side vehicle loads and the right side is connected across one battery and the left side is connected across the second battery. A three phase wye-connected alternator has the winding connected to a full wave three phase rectifier, the D.C. output of which is connected to the 24 volt terminals. The center common connection of the winding is connected directly to the 12 volt terminal. The system operates with balanced currents and charges on the two 12 volt batteries so long as the 12 volt loads remain balanced. Control loads are selectively connected to the right and left side loads if a 12 volt load is lost, disconnected or otherwise changes to maintain the balanced system but only if the imbalance due to lost loads is large. In another embodiment, the full wave rectifiers are connected to conduct the opposite half cycles of the alternator output. The controlled rectifiers for each half cycle have the gates connected to a common gate source, and a logic circuit monitors the voltage of each battery and actuates one or the other of the rectifier groups to prevent one battery segment from significantly varying in voltage with respect to the other.
Patent EP-0282935-A2 (EP)
Inventor: TREVISANI DAVIDE
IPC: E01C3/00
Filed: 1988-03-12
Abstract: The process starts with digging a trench (10) of adequate depth in the slope (8) of the embankment (1) of the existing roadway at a distance corresponding to the widening. A wall (12) is then built in the trench by means of prefabricated elements or by on-site casting, and is subsequently anchored to the road embankment (1) by means of tension elements (17). The wall (12) rises substantially to the level of the roadway so as to define a channel (15) which is then filled with stabilized material, on which the road paving is completed up to the wall.
Patent EP-0301469-A2 (EP)
Inventor: ROSL WOLFGANG
IPC: H01H19/00
Filed: 1988-07-26
Abstract: The invention relates to a pulse generator having an operating element which can be moved by a gearwheel over a latching projection, and which, when displaced, can operate contact springs fitted on the sides. A relatively large spacing is required on the sides between the contact springs and the operating element, which is bent from a metal strip of sprung material, in order to prevent a short-circuit between the two mutually opposite contact springs on the sides. This necessitates a dead angle of rotation through which the gearwheel must be rotated before operation of a contact spring is possible. In addition, a separate latching spring is provided and is used to define the rest positions of the gearwheel. …<??>The operating element (10) is produced from dielectric material and is pressed against the gearwheel (4) by a compression spring (12). The compression spring is also used as the latching spring. …<??>The pulse generator is particularly suitable for the emission of current or voltage pulses for adjusting the frequency of digitally adjustable devices. …<IMAGE>…
Patent EP-0314990-A2 (EP)
Inventor: DOCKREY JASPER WILLIAM
IPC: H01L21/302
Filed: 1988-10-20
Abstract: This disclosure relates to a process for etching polycrystalline silicon (14) in preference to single crystal silicon (10). Polycrystalline silicon (14) is anisotropically etched in a plasma which includes a noncarbonaceus silicon etching compound such as chlorine together with about 0.4 - 1.5 percent by volume of oxygen. The process is used to fabricate semiconductor devices which require the etching of polycrystalline silicon (14) in the presence of exposed monocrystalline silicon (10).
Patent EP-0318787-A2 (EP)
Inventor: ROSENQUIST NILES RICHARD
IPC: C08G64/14
Filed: 1988-11-21
Abstract: A method for the preparation of polycarbonate resins bearing terminal hydroxy ester groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula:
     wherein R represents alkylene of 1 to about 12 carbons. The novel product resins are useful as intermediate in the preparation of copolymers with, for example, polyesteramides.
Patent EP-0332755-A2 (EP)
Inventor: MUNDHENKE RUDOLPH F
IPC: C08L55/02
Filed: 1988-12-14
Abstract: UV stable, impact resistant, flame retarded ABS compo­sitions are obtained by compounding ABS with nitrile rubber, surfactant, Diels-Alder adduct of 2 moles of chlorocyclopentadiene and 1 mole of cyclooctadiene (commonly known as Dech Plus) and antimony oxide. Such compositions consist essentially by weight of from about 1% to about 9% nitrile rubber, from about 0.3% to about 5% surfactant, from about 14% to about 30% Dech Plus, from about 4% to about 20% antimony oxide and from about 50% to about 80.9% ABS. The ABS constituent has an Izod Impact Strength of at least 1.5 foot-­pounds per inch. The nitril rubber is preferably acrylonitrile-butadiene copolymer containing by weight from about 15 to about 50% acrylonitrile component, and the surfactant is preferably siloxane-oxyalkylene copolymer. The compositions have Izod Impact Strengths ranging from 2.0 to 4 foot-pounds per inch and in most cases a V-0 (UL94) flammability classification.
Patent EP-0318061-A2 (EP)
Inventor: TETENBORG KONRAD
IPC: B31B23/00
Filed: 1988-04-28
Abstract: The device consists of guide rollers and advance rollers which, in an intermittent manner by one bag or sack length in each case, push the respective front end, which is provided with a bottom welded seam, of the tubular film web, hanging down freely vertically, through between welding jaws of a welding device, which carry out opening and closing movements in a horizontal plane. In order to reliably avoid the tubular web sticking to the welding jaws of the welding device, there is provided above the welding device at least on the inner side of the tubular film web (26) which is supplied in a hanging manner a rake (53) which is mounted rigidly on the frame about a horizontal shaft and which, on every advance cycle, can be pivoted out in such a manner that the end of the tubular film web provided with the bottom seam can be freed from the welding beam and guided free of hindrance through following cutting and clamping devices. <IMAGE>
Patent EP-0278762-A2 (EP)
Inventor: GRAHAM LAWRENCE D
IPC: B22D27/04
Filed: 1988-02-11
Abstract: An improved apparatus and method is used to cast a plurality of articles in a mold structure (30) having a plurality of article molds (32) disposed in an array having an open central portion. The article molds are filled with molten metal while the mold structure is supported on a chill plate. An inner baffle plate is disposed in the central portion of the array of article molds and retards the transfer of heat from the article molds to the chill plate. The inner baffle plate is supported by a support structure which extends through the chill plate (20). After the article molds have been filled with molten metal, the chill plate and mold structure are lowered relative to the inner baffle plate to increase the rate of heat transfer from the article molds to the chill plate through the open central portion of the array of article molds. Thereafter, the inner baffle (44) plate and support structure are lowered with the chill plate and mold structure. An outer baffle plate (46) extends around the outside of the mold structure and is supported by the support structure. The outer baffle plate may be pressed against the bottom of a furnace (14) to retard heat transfer between the inside and outside of the furnace along a path extending outside of the mold structure.
Patent EP-0282202-A2 (EP)
Inventor: FORTH LESLIE
IPC: H04L7/10
Filed: 1988-02-24
Abstract: A preamble search and synchronizer circuit for detecting a preamble pattern within data input signals and synchronizing it with a clock signal associated with a StarLAN coded data transceiver includes a synchronizer start circuit (32), a counter circuit (34), and a pattern detector circuit (36). The synchronizer start circuit (32) is responsive to the complement of the data input signals and the clock signal for generating a start signal which is synchronized with the clock signal. The counter circuit (34) is responsive to the start signal and the complement of the clock signal for generating a gated clock signal. The pattern detector circuit (36) is responsive to the start signal, the data input signals and the gated clock signal for sampling of the data input signals and for generating a synchronized output signal upon detection of a predetermined data sequence indicative of the preamble pattern.
Patent EP-0280531-A2 (EP)
Inventor: MIURA KYO
IPC: G11B7/247
Filed: 1988-02-24
Abstract: An optical information recording carrier comprises an optical recording layer (3) provided on a transparent substrate (1), a film coating layer (6) laminated with out adhesion on said optical recording layer (3), and further a fixing layer (4a) laminated thereon to fix said film coating layer.
Patent EP-0307065-A2 (EP)
Inventor: TARY TAMAS
IPC: H05B41/285
Filed: 1988-03-04
Abstract: The present invention relates to a method and apparatus for driving discharged lamps and which is adapted to maximize the luminous efficiency of a discharged lamp and its associated electronic driving apparatus. This is accomplished through the power sourcing characteristics of the driver, by causing the required power to dissipate while maintaining the power factor in the lamp as near unity as possible with the real components available for the implementation of the apparatus.
Patent EP-0292194-A2 (EP)
Inventor: KOVALCHICK JOSEPH S
IPC: G01R31/02
Filed: 1988-05-12
Abstract: The color of each of a plurality of wires 18(1)...18(8) can be determined by first placing the wires proximate to a white background (31) and then directing a pair of light beams (36,38) thereat. Each of the red, green and blue spectral components in the light reflected from each wire and in the light reflected from the surface is simultaneously sensed by a separate one of three television cameras (40, 42 and 44), respectively, having a separate one of a set of red, green and blue band pass filters (52, 54 and 56), respectively, thereon. The output signal of the television cameras is processed by a machine vision system (58) which first computes the ratios of the red, green and blue spectral components of the light reflected from each wire to the red, green and blue spectral components, respectively, of the light reflected from the background. Each of the red, green and blue intensity ratios computed for each wire is then compared by the machine vision system to a red, green and blue intensity ratio, respectively, established for each of a plurality of wires of known colors until a substantial match therebetween is found. When a substantial match is found, the wire of unknown color can then be identified.
Patent EP-0295919-A2 (EP)
Inventor: MAYER DEAN LOWELL
IPC: B21C37/20
Filed: 1988-06-16
Abstract: Formation of continuous grooves in the internal surface of a tube shell (10) is effected in a single continuous cold drawing step, by first sinking the tube shell (10) in a die over a reduced diameter cylindrical mandrel portion (20) so that the diameter of the inner surface of the tube shell (10) is reduced to a dimension below the base of grooves (22) of a grooved plug portion (21) of the mandrel (20) thereby retarding longitudinal movement of a portion of the reduced internal surface of the sunk tube shell (10) at a plurality of circumferentially spaced intervals to effect formation of longitudinally continuous shallow grooves. The mandrel (20) is allowed to rotate if it is desirable to facilitate the formation of spiral grooves on the tube inner surface.
Patent EP-0299663-A2 (EP)
Inventor: CALE ALBERT DUNCAN JR
IPC: A61P37/08
Filed: 1988-07-05
Abstract: Aromatic tetrahydroazepinones and thiones having the formula:
      wherein 
Q is carbon or nitrogen; 
B is oxygen or sulfur; 
R is loweralkyl, cycloalkyl or phenylloweralkyl; 
Z is an amino or a heterocyclic amino containing radical; and 
Y is halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, phenyl or trifluorophenyl; 
and having antihistaminic utility, a process for the preparation thereof and chemical intermediates therefor are disclosed.
Patent EP-0302639-A2 (EP)
Inventor: NISHIIKE UJIHIRO C O TECHNICAL
IPC: C21D8/12
Filed: 1988-07-22
Abstract: A grain oriented electromagnetic steel sheet having a very low iron loss is obtained by subjecting a surface of base metal in the sheet after finish annealing to a particular mechanical polishing and has a surface roughness having a center-line average roughness of not more than 0.3 µm after the polishing and the number of abrasive grains embedded in a layer just beneath polished surface of not more than 20,000 grains/cm².
Patent EP-0329960-A2 (EP)
Inventor: COOPER MARTIN HOWARD
IPC: B65D5/74
Filed: 1989-01-24
Abstract: The package (21) includes a body (23) and a closure (25) and a readily breakable electrical oscillatory network (29) sans power supply is physically connected between the body (23) and the closure (25). The network (29), is tuned to resonate at a predetermined frequency. The package (21) is monitored by a transmitter-receiver when it is distributed to a customer. The transmit­ter produces pulse signals in a carrier frequency band which overlaps the resonant frequency of the network (29). During monitoring the package (21) is placed in the field of the transmitter and the oscillatory network (29) is excited to produce a decaying pulse for each transmitter pulse. If the package (21) is sealed, the oscillatory network (29), is intact decaying pulses are received to produce visual or audible signals. If the package (21) has been opened, the network (29) is broken and no signals are produced.
Patent EP-0333107-A2 (EP)
Inventor: HONJO TAKESHI
IPC: G03G15/00
Filed: 1989-03-13
Abstract: An original handling apparatus includes a convey unit for feeding an original and stopping it at a predetermined position on a platen and discharging the original from the predetermined position after reading is completed, and a control unit for controlling the convey unit so that the next original is fed to the predetermined position parallel to discharging of the original from the predetermined position.