baber/WOPTO huggingface dataset:
Patent GB-2289343-A (GB)
Title: A side-access MRI magnet having both active and passive shims
Inventor: WESTPHAL MICHAEL
IPC: A61B90/00
Filed: 1995-05-12
Abstract: In a side-access MRI magnet, the central part of the bore is not available for the placement of ferromagnetic shims, with the result that some types of inhomogeneity cannot be compensated by this method alone. To solve this problem, four pairs of superconducting shim coils C1i, C1a-C4i, C4a are added to provide compensation of zonal (rotationally symmetric) error components, the passive shims 20, which may be permanent magnets, being used to compensate tesseral error components. The currents in the coils of each pair are oppositely directed, and the coil pairs have no net coupling to the main field produced by coils 1a, 1b, 2a, and 2b. Additional room-temperature shims may be provided. <IMAGE>
Patent GB-2292295-A (GB)
Title: Three-dimensional model processing systems
Inventor: ONO MIEKO
IPC: G06T19/00
Filed: 1995-08-02
Abstract: A three-dimensional model processing system comprises a three-dimensional model storage unit (1) that stores three-dimensional model data; a position input unit (2) that receives the user's designation of a specific location on a three-dimensional model on a flat display, for example a corner; and a display control unit (3) that computes the direction from which the three-dimensional model is being viewed, based on the specific location which the user designated on the three-dimensional model using the position input unit (2) and the three-dimensional model data stored in the three-dimensional model storage unit (1), and displays the three-dimensional model on a flat display according to the result of that computation. Such a system can display the model from a suitable angle automatically, without involving a user of the system in troublesome display details. <IMAGE>
Patent GB-2304359-A (GB)
Title: Drainage channel grating fitting
Inventor: HUMPHRIES DEREK
IPC: E01C11/22
Filed: 1995-08-15
Abstract: A drainage system uses U-shaped channels (2) which are provided with pairs of inwardly projecting locking nibs (8) adjacent to the mouth at each end of the channel in order to engage with shaped downstands (14) formed along the length of the grating (6). An end plate (20) for closing an open end of a channel is provided which has removable tags (24) which can be used to replace the functionality of the nibs when a channel has been cut to size so that the nibs are removed.
Patent GB-2294374-A (GB)
Title: A supervising loopback circuit and a transmitting and receiving circuit for an optical repeater system
Inventor: HORIUCHI YUKIO
IPC: H04B10/08
Filed: 1993-06-08
Abstract: A supervising transmitting and receiving circuit for an optical transmission system having a plurality of optical repeaters, each of which includes a pair of up and down side repeating circuits using respective optical amplifiers inserted in an optical transmission link having up and down side optical fibre channels for a two way communication. The circuit comprises a sine wave oscillator 25 producing a carrier, circuit 36 generating pulses which have a width narrower than a time of an optical signal travelling through the spacing between said repeaters, and a period longer than a going and returning delay time of an optical signal travelling the overall length of said optical transmission system, a gate circuit 37 for modulating the amplitude of said carrier by said pulse signal and outputting a pulse modulated signal, a transmission light source 28 for transmitting a communication signal as a trunk channel signal, an optical amplitude modulator 29 for amplitude-modulating said trunk channel signal with said pulse modulated signal to produce a supervisory signal and sending said supervisory signal to an up side optical fibre channel, a photo-detector 30 for converting a returned optical signal into an electric signal, said returned optical signal returned by a group of parallel supervising loopback circuits Aa - An through a down side optical fibre channel, a band pass filter 38 for eliminating noise of said electric signal and an oscilloscope 39 for displaying said electric signals passed through said band pass filter. <IMAGE>
Patent GB-2296724-A (GB)
Title: Papermachine clothing cleaning apparatus
Inventor: LIDAR PER-OLA
IPC: D21F1/32
Filed: 1996-01-03
Abstract: A papermachine clothing cleaning apparatus 10 comprises a fluid injection nozzle 13 which may have an apertured plate 14, via which fluid is directed onto the papermachine clothing 11 in order to clean the clothing 11. Whilst being cleaned the area of papermachine clothing 11 which are adjacent the areas of clothing being impacted by the fluid are located in a press formed by the apertured plate 14 and a body 15, which may be in the form of a plate bar or roller, provided at the opposite surface of the fabric 11 the apertured plate and body are movable relative to one another. The apparatus may span or traverse the clothing. A suction device may be provided for removing the cleaning fluid. <IMAGE>
Patent GB-2304274-A (GB)
Title: Holder eg for compact disc containers
Inventor: MOK SZE MAN
IPC: A47B91/00
Filed: 1996-02-16
Abstract: A storage unit (1) for holding flat objects, particularly compact disc containers comprises at least two side walls (2) which bound a holding area for the objects, each side wall having at least one standing surface (5) for standing on a substantially horizontal support surface, and at least one support element (6) which is arranged on the storage unit (1) and which, when the storage unit (1) is set up, forms a support point arranged on the support surface outside the holding area bounded by the side walls (2). The standing surfaces (5) of the side walls (2) are preferably designed to enable the storage unit (1) to stand at a slope relative to the horizontal support surface.
Patent GB-2311868-A (GB)
Title: Alignment of liquid crystal polymers
Inventor: BLACKWOOD KEITH MORAY
IPC: G02F1/1333
Filed: 1996-04-04
Abstract: A liquid crystal polymer device comprises a layer of a liquid crystal polymer material contained between two plastic cell walls. The walls carry electrode structures and an alignment layer. This alignment layer is formed by a polyimide coating, baked and unidirectionally rubbed. The electrodes may be formed into row and column electrodes and the device operated by addressing in a multiplex addressed manner. The liquid crystal material may be a chiral smectic, a cholesteric, or a nematic material.
Patent GB-2314524-A (GB)
Title: Antenna ground plane substrate
Inventor: MCKINNON JOHN PETER BRUCE
IPC: H01Q9/28
Filed: 1996-06-25
Abstract: An antenna conductive element, e.g. a ground plane, is formed from expanded polystyrene and coated with a conductive compound by a process in which (a) unexpanded polystyrene beads are expanded by steam treatment, cooled and freed from stabilising agents, expansion agents and moisture, (b) the expanded beads are introduced into a mould where passage of steam causes further expansion, (c) the pressure within the mould is reduced whereby the polystyrene is cooled to a solid state and moisture removed, (d) the substrate is removed from the mould and heated in dry air and (e) a conductive coating is applied, e.g. as a metal pigment in an aqueous based thermoplastic resin binder, the metal being, inter  alia , silver, silver plated copper, nickel and gold. The element forms part of a flat plate, or layered, antenna comprising a dielectric substrate 10, two apertured ground planes 12,30 and a reflecting ground plane 32 which provides a degree of directionality. The dielectric substrate has, on one side, a metallisation pattern 22 which provides a feed for radiating probes 18,20 and the apertures 14,16 of ground planes 12,30 are positioned such that the probes are able to radiate in a primary radiating direction.
Patent GB-2304203-A (GB)
Title: A light amplifier having a multi-stage optical isolator
Inventor: KIM YEONG-JU
IPC: G02F1/095
Filed: 1996-07-31
Abstract: A light amplifier is constructed with only one multi-stage optical isolator 6 so as to reduce size and fabrication costs. The multi-stage optical isolator 6 has two input ports on one side and two output ports on the other. A source pump 3 generates light used to amplify weak input light 7(B). A wavelength division modulator 2 division-modulates wavelengths of the light generated by the source pump 3 and the light forwarded through the second output multi-stage optical isolator 6. An optical fibre 7 amplifies the light from the wavelength division modulator 2 and emits amplified light through the first input port of the multi-stage optical isolator 6.
Patent GB-2319091-A (GB)
Title: Instrument housing with discharge gap
Inventor: WALDING JR H PAUL
IPC: G01F15/14
Filed: 1997-10-29
Abstract: An assembly for electrostatic discharge has a chassis (14, 24) inside the instrument housing (11, 12) with a support (26) for holding a pair of insulated wires having portions where the insulation (31) is partially removed and where the wires are mounted to the support (25), a base (12) of a conductive material having a projection extending upward opposite the portions where the insulation (31) has been removed, such that a gap is provided through which charge may be conducted to the base (12) of conductive material for discharge from the interior space (41) of the instrument (10). The instrument (10) contains a volume of a gas for conducting electrostatic charge. The wires may be from a transmitter supplying metering pulses to a remote unit.
Patent GB-2331304-A (GB)
Title: Liquid crystal composition & shutter based on 2-phenylpyrimidines and tricyclic analogues of terphenyl, each having alk(en)yl or alkoxy end groups
Inventor: JONES JOHN CLIFFORD
IPC: C09K19/44
Filed: 1997-11-13
Abstract: A liquid crystal composition includes a host material comprising (a) two or more phenylpyrimidinyl compounds of the general formula [I]: [wherein X 1  and X 2  are independently selected from the group consisting of straight or branched chain (C 1 -C 12 )alkyl, straight or branched chain (C 1 -C 12 )alkenyl and straight or branched chain (C 1 -C 12 )alkoxy, in which either or both of the alkyl, alkenyl or alkoxy groups may be substituted (eg by one or more of halogen, oxygen and siloxane)] and (b) at least one fluoroterphenyl compound or analogue having formula [II] or [III]: [wherein each ring A is independently pheayl, pyrimidine, dioxane, pyridine or cyclohexane, Y 1  and Y 2  are independently selected from the group consisting of straight or branched chain (C 1 -C 12 )alkyl, straight or branched chain (C 1 -C 12 )alkenyl and straight or branched chain (C 1 -C 12 )alkoxy, and wherein either or both of the alkyl, alkenyl or alkoxy groups may be substituted (eg by one or more of halogen, oxygen and siloxane). A liquid crystal shutter is also provided which comprises a liquid crystal composition as detailed above.
Patent GB-2320763-A (GB)
Title: Monitoring device
Inventor: RADMALL PAUL
IPC: G01R31/40
Filed: 1997-11-26
Abstract: A monitoring device comprises means for monitoring a signal and providing an indication when the signal level is above and/or below a predetermined range of values. The indiction provided may take the form of one or more visual and/or audible device. Data communication to and from the device may be implemented via radio transmissions or power supply line telemetry which may be used for remote programing of the device. Encoded signalling may be used to identify a particular device during such communication. The device may include an audible indication device with a piezoelectric element and an associated resonator with holes which are of a size which prevent water ingress. The device may be included within an electrical plug or socket termination. The device may monitor voltage or current or other signals from transducers and may be energised by a signal dependent or independent of the signal to be monitored.
Patent GB-2320108-A (GB)
Title: Pause Controller
Inventor: MATTHEWS ROBERT JOHN COLIN
IPC: F24D19/10
Filed: 1997-12-08
Abstract: A pause controller has a switch which can make (or break) an electrical circuit in response to the pressure, temperature, or velocity of water, or other fluid, at one or more positions in a circuit containing the fluid. The device also incorporates a timer 14, which causes the switch 12 to be reversed after a set time interval. The time interval might be adjusted with a programmer 10, or fixed by the manufacturer. The switch may be used to open and close a bypass valve 12 in a central heating fluid circuit.
Patent GB-2334211-A (GB)
Title: The use of anionic polysaccharides to prevent prion infection
Inventor: DEALLER STEPHEN FRANCIS
IPC: A61K31/715
Filed: 1997-12-12
Abstract: Polysaccharide compounds derivatised with anionic groups, particularly sulphate, and more particularly pentosan sulphate, are indicated for inhibiting infection with an infective agent of a transmissible spongiform encephalopathy following inoculation therewith. The size of dose and duration of administration are calculate to avoid anti-thrombic activity (similar to heparin) and yet be in proportion to infection inhibiting doses used in laboratory animal testing following inoculation with prion protein (PrP). The proportion is calculated from the respective life expectancies in laboratory animals and humans.
Patent GB-2321132-A (GB)
Title: Endoscope
Inventor: ITO KEIJI
IPC: A61B1/05
Filed: 1998-01-13
Abstract: An electronic endoscope has insulation (70) between side faces of a solid-state imaging element 10 and inner leads (23) of a flexible circuit board 20. The external dimensions after assembly of the endoscope comprised of the solid-state imaging element and the flexible circuit board are small. The inner leads of the flexible circuit board are bonded to pad parts (12) disposed on the solid-state imaging element, and these inner leads are bent so as to be disposed along the side faces of the solid-state imaging element. The lens group of the endoscope is detachable, and the outermost lens has the same rectangular shape as the imaging device which reduces the amount of stray light incident on the imaging device.
Patent GB-2326313-A (GB)
Title: Method of controlling transmission in a base station transceiver subsystem
Inventor: PARK YEON-HEE
IPC: H04W88/08
Filed: 1998-03-10
Abstract: A method for controlling signal transmission from selected transceivers (24-0 to 24-5) in a base station transceiver subsystem (BTS). The method includes collecting and combining fault information from devices which provide factors affecting call processing service; accordingly selecting transceivers; preventing transmission by the selected transceivers by sending a message to transceiver interface processor(s) (22-0 to 22-5) connected to each of a plurality of transceivers within the base station transceiver subsystem. If the fault is rectified; normal transmitting power is restored by sending a message to the transceiver interface processor(s). Figure 1 comprises the following features: base station controller (BSC); base station transceiver subsystem (BTS); BTS communication interconnect network (BCIN); BTS call control processor (CCP); BTS control processor (BCP); fault management executor (BFMX); status handling executor (BSHX); test unit (BTU); interconnect processor assembly (HIPA), channel elements (CE); channel element interface processors (CIP); transceiver interface processors (TIP) and transceivers (XCVR).
Patent GB-2335718-A (GB)
Title: Vacuum cleaner telescopic extension wand
Inventor: WANG CHIEN-CHUN
IPC: A47L9/24
Filed: 1998-03-26
Abstract: The wand comprises an inner tube 30 telescopically slidable in an outer tube 10 and being retainable at a given axial position by a retaining plate 60 having teeth 61, meshable with an axially extending toothed formation 36 on the inner tube, and actuated by a rotary sleeve 21 on the outer tube. An inclined tab 24 is provided at the sleeve inner wall for biasing the plate 60 for teeth meshing. A projected boss 25 provided at the inner sleeve wall can be guided by a guiding slot 13 disposed at the outer tube wall. When the sleeve is rotated to a preset position, the incfined tab as well as the retaining plate can be controlled to engage or disengage with the middle tube or inner tube without engagement between the retaining teeth therebetween. An identical coupling arrangement is provided between the inner tube 30 and a further tube 50 slidable and retainable within it.
Patent GB-2328730-A (GB)
Title: Dehumidifier
Inventor: SAKAKI MASAYA
IPC: F24F1/02
Filed: 1998-06-04
Abstract: A dehumidifier includes a compressor (1) disposed to the rear of the lower portion of the main body of the dehumidifier. An evaporator (6) and a condenser (7) are located immediately above the compressor. An air inlet (4) is provided in the rear side (B). Air drawn into the dehumidifier through the air inlet (4) by a fan (8) passes through the evaporator and the condenser, before being blown out through an outlet (9) in the top side of the main body. A drain tank (2) surrounds the compressor (1). A drain pan (11) which communicates with the drain tank is positioned below the evaporator to collect moisture. Air having passed through the evaporator is heated by passage through the condenser,
Patent GB-2326274-A (GB)
Title: Electron gun for multibeam electron tube
Inventor: BEUNAS ARMEL
IPC: H01J23/087
Filed: 1998-06-11
Abstract: An electron gun (102), e.g. for a Klystron or travelling-wave tube, comprises a plurality of cathodes (1) each designed for the production, from an emissive face, of an electron beam (100). Each of the cathodes (1) is surrounded by a pole piece (70). This pole piece (70) is designed to convey a magnetic flux close to the emissive face of the respective cathode (1). The pole pieces (70) associated with each cathode (1) may be separate or integral with one another. A Wehnelt electrode (6) for focussing may be provided as a coating on the or each pole piece (70). A coil (14) additionally provides an annular magnetic field around all the beams (100).
Patent GB-2327089-A (GB)
Title: A method of treating metal-working dies
Inventor: MELDRUM FRITZ
IPC: B21J3/00
Filed: 1998-07-06
Abstract: A method of treating a metal-working die 11,12 constituted of consolidated particulate material with a porosity of 0.01-0.5% comprises the steps of immersing the die in lubricant 31 which is contained within a pressure vessel 33, raising the pressure within the vessel to 1000-3500 psi (7-25 MPa) and heating the lubricant to 80-120C for a period of time sufficient to allow lubricant to be trapped in the die's pores at a positive internal pressure (e.g. 0.01-1.0 psi) so that lubricant removed as the die is used is replenished from within the die. Possible lubricants include: chlorinated paraffin, fatty esters, water soluble lubricants, petrol based lubricants and synthetic or solvent based lubricants. A die treated by this method and used for cold working does not require breaking in by burn-in and redressing.
Patent GB-2331208-A (GB)
Title: Restoring failed telecoms. links using software agents
Inventor: GROVER WAYNE D
IPC: H04L12/24
Filed: 1998-08-10
Abstract: A distributed method creates telecommunications paths in a network, particularly after a span failure. The network includes plural distinct nodes interconnected by plural distinct spans, each span having working links and spare links. Each node has a digital cross-connect switch for making and breaking connections between adjacent spans forming span pairs at a node. At least one of the end nodes of a path to be created broadcasts statelets (Fig 4). Each intermediate node between the end nodes broadcasts incoming statelets in a manner that favours use of restoration paths that eliminate the fewest other paths. Statelets that have traversed spans with greater spare capacity, considering the number of statelets competing to be broadcast along the spans, are preferentially broadcast.
Patent GB-2328686-A (GB)
Title: Producing Arylamines
Inventor: KUBO SHINJI
IPC: C07D213/22
Filed: 1998-08-10
Abstract: Production of an arylamine by allowing an aromatic amine to react with an aromatic halide in the presence of a copper-containing catalyst in a reaction solvent having an ionization potential of from 8.0 to 9.0 eV is described. The arylamines, in particular a triarylamine or a diarylamine, useful as a raw material for use in electronic materials or as an intermediate thereof can be produced with a high purity and in a high yield or at a low cost.
Patent GB-2331045-A (GB)
Title: Security marking for a motor vehicle comprising indicia and weld
Inventor: GUNTER MARTIN RICHARD
IPC: B60R13/10
Filed: 1998-08-21
Abstract: A motor vehicle is provided with a security marking comprising a unique string of indicia and a length of material applied by welding. A photographic record or digital image of the indicia and length of material is made for comparison purposes.
Patent GB-2344036-A (GB)
Title: Single-sided subband filters; echo cancellation
Inventor: REILLY JAMES P
IPC: H04B3/23
Filed: 1998-11-23
Abstract: A digital signal processing apparatus has a bank of single-sided filters 22 with complex valued filter coefficients for dividing an input signal into subbands, and means for processing the signals within the subbands. The arrangement may be applied to blind deconvolution, blind signal separation, channel equalisation, array signal processing, detection/estimation problems, double-talk detection, and echo cancellation for speech, data or video. The subband filters may have filter coefficients based on a least squares optimised approximation of a near ideal filter. In an echo canceller, the signals from the subband filters 22 are passed to a bank of adaptive filters 14 forming echo signal estimates y[n] which are subtracted 18 from the outputs of a similar set of subband filters 24 receiving an input from a microphone 16. Synthesis filters to reconstitute an output signal from the subbands are formed by a second bank of complex-valued, single-sided filters. Filters 22 also perform downsampling of the input signal. Downsampling may be carried out by polyphase decomposition, and the downsampling rate may be nearly twice the critical rate. The synthesis filters perform upsampling. A subbanded double-talk detector 26 is used within each subband. If double-talk is found in any subband, the coefficients of all the adaptive filters 14 are frozen.
Patent GB-2332049-A (GB)
Title: Photodiode pixel sensor with output coupling via transistor with threshold voltage
Inventor: CHOU ERIC Y
IPC: H04N5/374
Filed: 1998-11-25
Abstract: A salient integration mode active pixel sensor has a amplify compare transistor M2 which connects its input to its output BUS when the its input exceeds a certain threshold voltage. The photo diode D1 Has an intrinsic capacitance which is charged via M1 when the RST line is active. The voltage at N1 Is then dropped below the threshold of M2 by reducing the voltage on the SEL line which is coupled to N1 via a capacitor C1 and then decreases further as D1 back conducts when light strikes it. The SEL voltage is then raised bringing the voltage at N1 back above the threshold of M2 coupling the voltage across D1, indicative of the intensity of light received, to the output BUS. The amplify/compare transistor and the reset transistor can be an N-type MOSFETs. Furthermore a back gate of the amplify/compare transistor may be connected to a circuit ground.