baber/WOPTO huggingface dataset:
Patent GB-2346452-A (GB)
Title: Waveguides
Inventor: DA SILVA MARQUES PAULO VICENTE
IPC: G02B6/136
Filed: 1999-02-05
Abstract: A waveguide for an optical circuit comprises a substrate 6; a buffer layer 7 formed on the substrate; a doped lower cladding layer 8 formed on the buffer layer; a doped waveguide core 13 formed on the lower cladding layer; and a doped upper cladding layer 12 embedding the waveguide core. The waveguide core includes mobile dopant ions, such which as P or F have diffused into the upper cladding layer and the lower cladding layer to form an ion diffusion region around said waveguide core such that the waveguide core boundary walls are substantially smooth. Methods of fabricating the waveguide are also described. Cladding layers 8 and 13 are preferably doped with P or B ions.
Patent GB-2335936-A (GB)
Title: Multi-piece rotary cone drill bit seal
Inventor: PORTWOOD GARY R
IPC: E21B10/22
Filed: 1999-04-01
Abstract: A rotary cone drill bit seal (50) with a multi-piece construction comprising a seal body (52) formed from an energizing material such as an elastomer or rubber and a seal jacket (54) formed from a different material with a greater wear resistance than the seal. The seal jacket has a sealing surface (56) at one end and sides (58) that extend around the seal body and are shaped and sized to fit around the non-energizing sides (52A, fig 4)of the seal body. The seal jacket is not chemically cross-linked bonded to the seal body, but is held in position by a slip or interference fit. The seal may be provided with a stiffening layer (78, figs 7 to 9) attached to the seal jacket by mechanical or chemical means to prevent the seal jacket from separating from the seal body when operating in harsh conditions. The cross-section of the seal may be made in a variety of profiles (figs 6,8,13 to 15 and 17 to 19) for uses in particular applications. The diameter across the internal surface (84, figs 10, 11) of the seal body (82, figs 10,11) may be varied to vary the contact pressure profile. In light drilling operations the seal jacket can be made in the form of a cap placed over the seal body (see figs 13 to 15) or a partial cap (figs 17 to 19) may be provided where contact is not required over the entire inner surface.
Patent GB-2336690-A (GB)
Title: Liquid crystal alignment layer with ionic bond
Inventor: KABE MASAAKI
IPC: G02F1/141
Filed: 1999-04-23
Abstract: A substance containing an ionic bond is mixed with or positioned adjacent to an alignment layer in a ferroelectric liquid crystal device. When the liquid crystal is injected into the cell, ions are eluted from the substance and distributed evenly throughout the liquid crystal layer. The ionic substance can be mixed with the alignment material before formation of the layer, or alternatively the ionic substance can be infiltrated into the substrates or alignment layer at various stages of the manufacturing process. The even distribution of ions reduces the influences of display history, thus half-tone displays with improved response characteristics can be provided.
Patent GB-2349616-A (GB)
Title: Vehicle having a roof mounted inflatable cushion
Inventor: JONES IAIN RAYMONG
IPC: B60R21/213
Filed: 1999-05-05
Abstract: A motor vehicle comprising a passenger compartment, an inflatable cushion 4, provided along a side edge, of the roof 6, and arranged to inflate downwards in the event of an accident, and an inflator 8, to inflate the inflatable cushion in an accident. The inflator is situated in a recess, adjacent the front reinforcement member (24, Fig 2), at the front edge, of the roof, of the passenger compartment. The inflator may be secured to the front reinforcement member, by means of a deformable bracket (26, Fig 2) of sheet metal, welded to the inflator, and bolted to the reinforcement member. Said bracket may have a plurality of fold lines (36, Fig 3), to ensure the inflator will move, relative to the reinforcement member, under impact. The inflator may be aligned parallel to the reinforcement member, and connected to the cushion, via a 90 degree tube section 10.
Patent GB-2351634-A (GB)
Title: Audio processing system
Inventor: CLARKE THOMAS BRENDAN FRANCIS
IPC: G10K15/02
Filed: 1999-06-26
Abstract: An audio processing system has particular application in passenger vehicles. In a preferred embodiment, the system comprises a vehicle audio installation comprising audio reproduction apparatus including an amplifier (14) and one or more transducers (16) for radiating sound into a passenger compartment of a vehicle. The audio installation may be a system for reproducing audio recordings. The system further includes a signal generation stage (10) having a synchronising signal input (20) and an audio signal output (12). The signal generation stage is operable to generate an audio frequency signal on its output (12). These signals are generated at a rate determined by a periodic synchronisation signal appearing on its input (20), which synchronisation signal varies with the speed of operation of the engine of the vehicle. The audio signal output being connected to supply signals to the amplifier (14) for reproduction by the audio reproduction apparatus. A memory device, such as a chip card, (30) contains data which can be interpreted by the signal generation stage to determine the perceived sound to be generated by the output stage. The system can operate to enhance the perceived sound of a vehicle during operation.
Patent GB-2353191-A (GB)
Title: Packet data encryption/decryption
Inventor: HONARY BAHRAM
IPC: H04L9/12
Filed: 1999-07-09
Abstract: Plaintext data packets to be encrypted, transmitted and decrypted comprise data elements P<SB>1</SB>, P<SB>2</SB>...P<SB>n</SB>, the number n of elements in each packet being variable between successive packets. Each plaintext packet is converted to a ciphertext packet comprising the same number n of elements C<SB>1</SB>, C<SB>2</SB>...C<SB>n</SB> as the number of elements in the plaintext packet from which it is converted. The element conversion is achieved by combining each of the plaintext elements in turn with a respective element of the first n data elements K<SB>1</SB>, K<SB>2</SB>...K<SB>n</SB> of a key stream segment comprising N data elements K<SB>1</SB>, K<SB>2</SB>...K<SB>N</SB>, N being a constant which is at least as great as n. Each ciphertext packet is transmitted from a transmitter to a receiver, and the received ciphertext packet is converted to the plaintext packet from which it was converted. Reconversion is achieved by combining each of the ciphertext data elements in turn with a respective element of the first n elements of a key stream segment identical to that used to convert the plaintext packet to the ciphertext packet. The key stream segments are generated by cipher apparatus operating on an initialisation vector which is updated each time an element is converted and further updated after conversion of the last element in a packet such that the vector is always updated N times each time a packet is converted. Thus regardless of the number of elements in a packet to be converted, the vector is always updated the same number of times as a result of conversion of that packet.
Patent GB-2352601-A (GB)
Title: Graphical data-processing
Inventor: HALAMISH DANNY
IPC: G06T15/30
Filed: 1999-07-26
Abstract: A method of processing image data blocks representing image surfaces for display on a display device. Respective image data blocks are combined to form a compound image data block and a corresponding compound control data block. The compound image data block is processed in accordance with the compound control data block.
Patent GB-2338736-A (GB)
Title: Composite spoolable tube
Inventor: QUIGLEY PETER A
IPC: F16L9/147
Filed: 1998-02-23
Abstract: A spoolable composite tube capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anistropic characteristics that provide improved burst and collapse pressures, increased tensile strength, compression strength, and load carrying capacity, while still remaining sufficiently bendable to be spooled onto a reel in an open bore configuration. The spoolable composite tube (10) can include all inner liner (12), an interface layer (14), fiber composite layers, a pressure barrier layer and an outer protective layer. The fiber composite layers can have a unique triaxial braid structure.
Patent GB-2345095-A (GB)
Title: Sliding bearing including a resin layer consisting of soft metal particles dispersed in a thermosetting resin
Inventor: TANAKA TAKUYA
IPC: F16C33/20
Filed: 1999-12-10
Abstract: In a sliding bearing, a bearing metal layer is covered with a coating layer comprising a thermosetting resin as a base resin, and soft metal particles of Vickers hardness Hv 60 or less in an amount 0.1 to 10% by volume dispersed in the base resin. The soft metal is harder than the base resin and has a higher thermal conductivity, increasing the wear resistance and resistance to seizure of the sliding bearing. In particular, when the soft metal particles are of copper, silver, tin or zinc, the particles react with sulphur contained in a lubricating oil to form a thin metal sulphide film excellent in lubricity on the surface of the particles, lowering the coefficient of friction. Optionally, solid lubricant (up to 80% by volume) and particles of hardness greater than Hv 60 (up to 5% by volume) may be included in the coating layer.
Patent GB-2357296-A (GB)
Title: Low sulphur fuel composition with enhanced lubricity
Inventor: BARBOUR ROBERT HOWIE
IPC: C10L10/08
Filed: 1999-12-16
Abstract: A fuel composition having a sulphur content of . &.  50 ppm by weight and comprising . /.  50 ppm by weight of at least one fused polycyclic aromatic compound which has at least one hetero-atom selected from O and N either (a) as a heterocyclic group, or, (b) as an exocyclic group in which the hetero-atom is attached either directly or through one other carbon atom to a ring carbon atom wherein the fused polycyclic aromatic compound is substituted on at least one of its ring carbon atoms by a C1-C4 alkyl group. These compounds are capable of improving the antiwear and lubricity properties of a low sulphur fuels, especially diesel fuels, when compared with the performance of the same fuel in the absence of such compounds.
Patent HU-T63589-A (HU)
Title: Method for producing gas-permeable net made of noble metals for catalytic processes
Inventor: BLASS SIEGFRIED
IPC: B01J23/40
Filed: 1992-03-16
Abstract: For knitting round nets for use as catalysts in ammonia combustion and as recovery nets for platinum metals, wires of platinum with 4 to 12 % of rhodium or 4 to 12 % of palladium and rhodium and wires of palladium with 2 to 15 % of nickel or 2 to 15 % of copper or 2 to 15 % of nickel and copper are used, which must have a diameter from 50 to 120  mu m, a tensile strength from 900 to 1050 N/mm<2> and an elongation limit from 0.5 to 3 %. In addition, a flat-knitting machine having a pitch between 3.63 mm and 1.81 mm is required, the mesh length having to be between 2 and 6 mm.
Patent HU-T66144-A (HU)
Title: Process for manufacturing of sodium hydroxide
Inventor: BOURGEOIS LOUIS
IPC: B01D61/42
Filed: 1993-03-05
Abstract: Process for the manufacture of sodium hydroxide, according to which an electrodialysis cell is used, water or an aqueous sodium hydroxide solution (10, 10') is introduced into a chamber (6, 6') of the cell, defined between a cationic membrane (2, 2') and an anionic face (8, 8') of a bipolar membrane (3, 3'), an aqueous sodium carbonate solution (11, 11') is introduced into a chamber (7, 7') defined between a cationic face (9, 9') of the bipolar membrane (3, 3') and another cationic membrane (2', 2''), an alkaline pH is maintained in the chamber (7, 7') which is supplied with the sodium carbonate solution (11, 11') and an aqueous sodium hydroxide solution (12, 12') is drawn off from the chamber (6, 6') containing the anionic face (8, 8') of the bipolar membrane (3, 3').
Patent HU-T66766-A (HU)
Title: Universal kitchenmachine
Inventor: GRELICH THOMAS
IPC: A47J43/06
Filed: 1992-04-24
Abstract: PCT No. PCT/DE92/00339 Sec. 371 Date Dec. 27, 1993 Sec. 102(e) Date Dec. 27, 1993 PCT Filed Apr. 24, 1991 PCT Pub. No. WO92/19139 PCT Pub. Date Nov. 12, 1992.A kitchen appliance for processing food by chopping, mixing, whipping, kneading, pressing, and preparing emulsions from food has a horizontally positioned cylindrical vessel for receiving food. A tool for processing food in the vessel has a diameter that matches the inner diameter of the vessel. A drive motor is connected with a drive shaft to the tool for driving the tool in rotation. An advancing unit is provided for advancing the tool in the axial direction of the vessel over its axial length. The advancing unit has a stationary spindle and a slide connected to the spindle so as to be slidable on the spindle in the axial direction of the vessel, wherein the slide is displaced by an electric motor on the spindle in the axial direction. The drive motor of the tool is connected to the slide to allow for axially advancing the tool within the vessel.
Patent HU-T71847-A (HU)
Title: Dna molecules encoding aminopeptidase enzymes, vectors and transgenic cells containing dna molecules, immunogenic polypeptides encoding by dna molecules, vaccines against helminth infections containing these peptides and process for the preparation ...
Inventor: GRAHAM MARGARET
IPC: C12N15/09
Filed: 1993-05-07
Abstract: The present invention provides nucleic acid molecules containing nucleotide sequences encoding helminth aminopeptidase enzymes, and antigenic fragments and functionally-equivalent variants thereof, their use in the preparation of vaccines, for use against helminth parasites, and synthetic polypeptides encoded by them.
Patent HU-T74107-A (HU)
Title: A mineral-fiber composition
Inventor: HOLSTEIN WOLFGANG
IPC: C03C13/00
Filed: 1995-05-16
Abstract: A mineral-fiber composition that is biologically degradable characterized by the following constituents in percent by weight: SiO2 40 to 67, CaO 20 to 45, MgO 0 to 12, Na2O 0 to 10, B2O3 0 to 15, Na2O + B2O3 0 to 25, P2O5 0 to 5, Al2O3 0 to 3, TiO2, Fe2O3, BaO, MnO, K2O 0 to 5.
Patent HU-T75595-A (HU)
Title: Balance gate
Inventor: HOERMANN THOMAS J
IPC: E05D15/42
Filed: 1995-12-21
Abstract: The invention relates to an up-and-over door (1) with a door panel (3) which can be pushed along substantially horizontal guide rails (5) inside a building between an open and a closed position, in which the up-and-over door (3) is articulated beneath the guide rails (5) via deflectors (9) acting as a double-sided lever in a channel (6), said deflectors (9) being secured on the channel (6) to rotate about a spindle (12), with a first end (14) arranged on the door panel (3) so as to rotate and a second end (15) supported against the building via springs (16) to compensate the weight. An up-and-over door (1) which, even with large dimensions and correspondingly strong springs (16) can be easily and securely fitted, is provided in that in the region of the spindle (12) of the deflector (9) there is a device (17) for pretensioning the springs (16) which is secured to the springs (16) during the fitting of the door (1) and can be secured to the second  end (15) of the deflector (9), preferably in the open position of the door (1).
Patent IL-73512-A (IL)
Title: Process for the preparation of aromatic cyanates
Inventor: DANIEL J MURRAY
IPC: C07C313/00
Filed: 1984-11-14
Abstract: A process for the preparation of an aromatic cyanate which comprises (a) preparing in situ a cyanogen chloride by contacting a solution of chlorine in a chlorinated hydrocarbon with an aqueous solution of an alkali metal cyanide at a temperature of 0°C or below under conditions such that a cyanogen chloride is prepared; (b) physically separating the chlorinated hydrocarbon in which the cyanogen chloride is dissolved from the aqueous layer in which an alkali metal chloride salt is dissolved; and (c) contacting the cyanogen chloride dissolved in the chlorinated hydrocarbon with a hydroxy-substituted aromatic compound dissolved in a chlorinated hydrocarbon, a secondary alcohol or a tertiary alcohol, in the presence of a tertiary amine at a temperature of about 0°C or less under conditions such that a polyaromatic cyanate is prepared.
Patent IL-92963-A (IL)
Title: Phenylamidine and phenylguanidine derivatives, process for their preparation and pharmaceutical compositions containing them
IPC: C07D295/135
Filed: 1990-01-03
Abstract: Compounds of formula I <CHEM> and their salts in which n = 0 or 1, R1 and R2 are each aliphatic or cycloalkyl or NR1R2 is an optionally substituted heterocyclic ring, R3 is alkyl, cycloalkyl or optionally substituted amino, R5 is an aliphatic group, R6 is H, an optionally substituted aliphatic group or a cycloalkyl group, or R3 and R5 together with the nitrogen and carbon atoms to which they are attached form an optionally substituted heterocyclic ring or R5 and R6 together with the nitrogen to which they are attached form a heterocyclic ring optionally substituted by alkyl and R7 is optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkoxycarbonyl, trifluoromethyl or cyano have utility as hypoglycaemic agents.
Patent IL-97685-A (IL)
Title: 2-(substituted pyrrolidinylthio) carbapenem derivatives process for their preparation and pharmaceutical compositions containing them
IPC: C07D477/20
Filed: 1991-03-26
Abstract: A compound of the formula: <CHEM> wherein R is a hydrogen atom or a methyl group, R<1> is a hydrogen atom or a negative charge, each of R<2> and R<3> which may be the same or different, is a hydrogen atom, a lower alkyl group, a hydroxy lower alkyl group, a formimidoyl group, an acetoimidoyl group, -COOR<4>, -CON(R<5>)R<6>, -N(R<5>)R<6>, -CH2COOR<4>, -CH2N(R<5>)R<6> or -CH2CON(R<5>)R<6> (wherein R<4> is a hydrogen atom or a lower alkyl group, each of R<5> and R<6> which may be the same or different, is a hydrogen atom or a lower alkyl group, or R<5> and R<6> form together with the adjacent nitrogen atom a heterocyclic group selected from the group consisting of an aziridinyl group, an azetidinyl group, a pyrrolidinyl group and a piperidyl group), A is =NR<7>, =N/<+>(R<7>)R<8>, -CON(R<7>)-, -CON(R<7>)CO-, -CON(R<7>)CON(R<8>)-, -N(R<7>)CO(CH2)sN(R<8>)-, -N(R<7>)CO(CH2)sCON(R<8>)-, -CON(R<7>)N(R<8>)- or -N(R<7>)(CH2)sN(R<8>)- {wherein each of R<7> and R<8> which may be the same or different, is a hydrogen atom, a lower alkyl group, a hydroxy lower alkyl group, a formimidoyl group, an acetoimidoyl group, -COOR<4>, -CON(R<5>)R<6>, -N(R<5>)R<6>, -CH2COOR<4>, -CH2N(R<5>)R<6> or -CH2CON(R<5>)R<6> (wherein R<4>, R<5> and R<6> are as defined above), s is an integer of from 1 to 3}, p is an integer of from 0 to 3, and each of q and r which may be the same or different, is an integer of from 0 to 5, provided that q and r are not simultaneously 0 and q + r </= 6; or a pharmaceutically acceptable salt or ester thereof.
Patent IL-97853-A (IL)
Title: Saccharide compositions and methods and apparatus for their synthesis
IPC: C12N9/10
Filed: 1991-04-15
Abstract: A process for preparing an intermediate product suitable for glycosyl- transferase-catalyzed preparation of a saccharide by serially bonding at least one preselected saccharide unit thereto, and if desired for converting such intermediate to a saccharide, wherein said intermediate is obtained by the steps of: (i) obtaining a glycosyltransferase capable of transferring a preselected saccharide unit to an acceptor moiety by contacting said acceptor moiety with at least one mixture suspected to contain a plurality of glycosyltransferases under conditions effective to bind said acceptor moiety and said glycosyltransferase, and thereby isolating said glycosyltransferase, wherein said acceptor moiety is one member selected from the group consisting of proteins, glycoproteins, lipids, glycolipids, and carbohydrates; (ii) providing conditions and optionally one or more coreagents that form divalent cations sufficient to effect bonding of a preselected saccharide unit to said acceptor moiety catalyzed by said glycosyltransferase thereby obtaining a product; and (iii) repeating steps (i) and (ii) at least once, such that the product obtained in step (ii) of a given iteration is used as the acceptor moeity in step (i) of the following iteration until such intermediate is obtained, and if it is desired to convert the intermediate to a saccharide; (iv) performing steps (i) and (ii) a plurality of times such that the product obtained in step (ii) of a given iteration is used as the acceptor moiety in step (i) of the following iteration until said saccharide is obtained. The compound of the formula b1-3,4b1-4 galNAc R gal R glu is claimed as novel.
Patent JP-H02190758-A (JP)
Title: Electrochemical element
Inventor: NAKAGAKI KUNIHIKO
IPC: G01N27/409
Filed: 1989-01-20
Abstract: PURPOSE:To provide both accuracy and responsiveness even in a low-temp. atmosphere by providing a porous body (porous catalyst carrier) on which a catalyst to put a gas to be measured in a nonequil. state into an equil. state separately from a porous protective layer. CONSTITUTION:Planar solid electrolytes 1 to 3 are laminated and integrated to form one planar solid electrolyte body. A measuring electrode 10 and a reference electrode 11 are provided on both surfaces of the electrolyte 1 in contact with the planar solid electrolyte body. A groove 5 for air introduction is provided in the central part of the electrolyte 2 in order to expose the electrode 11 to a reference gas, such as air. The porous protective layer 21 is provided on the electrode 10 and is laminated and integrated with the electrolyte 1 which constitutes a base plate. The porous catalyst carrier 22 having the effect of putting the nonequiv. gas into the equil. state is provided by being laminated and integrated with the electrolyte 3 on the opposite side of the protective layer 21. The electrode 10 and the electrode 11 are connected via a lead pattern or lead wires to a voltmeter 51, by which the electromotive force based on the difference in the partial pressures of the gases on the respective electrodes is measured.
Patent JP-H09197692-A (JP)
Title: Photoreceptor for electrophotography
Inventor: YOKOTA SABURO
IPC: G03G5/06
Filed: 1996-01-24
Abstract: PROBLEM TO BE SOLVED: To improve durability and residual electric potential, and to provide the excellent performance on the electric characteristic and the image forming characteristic by including titanyl phthalocyanine or the like as a charge generating material, and including the specified diphenoquinone group compound as a charge transporting material. SOLUTION: A photosensitive layer having the single structure, which includes the charge generating material and the charge transporting material, is provided on a conductive support. As the charge generating material, one kind or more of material, which is selected among a group of titanyl phthalocyanine and the reaction products of the titanyl phthalocyanine and 2,3-butane diol, is included, and as the charge transporting material, the positive hole transporting arterial and the diphenoquinone group compound expressed with a formula is included. In the formula, R<1> -R<8> separately means hydrogen atom and halogen atom or the like. Removal efficiency of the trapped electron is optimized by combining the charge generating material and the charge transporting material, and the excellent electric characteristic is thereby realized.
Patent JP-S62210096-A (JP)
Inventor: UIRUFURETSUDO ANSONII MAARERU
IPC: C02F1/465
Filed: 1987-01-21
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。