baber/WOPTO huggingface dataset:
Patent GB-2370722-A (GB)
Title: Controlling base stations to increase traffic capacity
Inventor: JOHNSON NICHOLAS DOUGALL
IPC: H04W16/10
Filed: 2000-07-14
Abstract: A cellular radio telecommunication system comprises a plurality of basestations (BS1,BS2,BS3,BS4) and a basestation controller (PC). The basestation controller is arranged to control the basestations so that at least two of the basestations use the same broadcast control channel, each basestation being substantially synchronised with respect to each other. The basestation controller further controls the basestations to use dedicated traffic and signalling channels within the immediate vicinity of each basestation. The telecommunication system seeks to provide the maximum space diversity gain in traffic capacity by controlling the basestations so that they use a single broadcast synchronise control channel and separately handle dedicated traffic and signalling channels in their immediate vicinity.
Patent GB-2349645-A (GB)
Title: Microencapsulated drag reducing agents
Inventor: KOMMARREDI NAGESH
IPC: F17D1/16
Filed: 1999-01-25
Abstract: High concentration drag reducing agents may be prepared by microencapsulating polymer drag reducing agent. The microencapsulation may be performed prior to, during, or after the polymerization of monomer into effective drag reducing polymer. If encapsulation is done before or during polymerization, a catalyst may be present, but little or no solvent is required. The result is very small scale bulk polymerization within the microcapsule. The inert capsule or shell may be removed before, during or after introduction of the microencapsulated drag reducer into a flowing liquid. No injection probes or other special equipment is expected to be required to introduce the drag reducing slurry into the liquid stream, nor is grinding (cryogenic or otherwise) of the polymer necessary to form a suitable drag reducing agent.
Patent GB-2365992-A (GB)
Title: Compound glass holey fibre
Inventor: BRODERICK NEIL GREGORY RAPHAEL
IPC: C03C25/106
Filed: 2000-08-14
Abstract: To overcome problems of fabricating conventional optical fibre from compound glass, it is proposed to fabricate compound glass optical fibre as holey fibre. This removes the conventional problems associated with mismatch of the physical properties of the core and clad compound glasses, since a holey fibre can be made of a <I>single</I> compound glass. A variety of fibre types can be fabricated from compound glasses, for example: single-mode fibre; photonic band gap fibre; highly non-linear fibre; fibre with photosensitively written gratings and other refractive index profile structures; and rare-earth doped fibres (e.g. Er, Nd, Pr) to provide gain media for fibre amplifiers and lasers. The compound glass may be chalcogenides eg. sulphide glass, or a halide glass. Fig. 4A shows a solid core 1, single mode holey fibre. 4B shows a hollow core 1, photonic crystal holey fibre. Holey cladding 2 is shown.
Patent GB-2362220-A (GB)
Title: Fluid flow rate measurement with tracer
Inventor: HARRIS CHRIS
IPC: G01F1/708
Filed: 2000-10-23
Abstract: A non-contaminating, decaying tracer is introduced into a fluid flow such as water and the device includes means for generating the tracer, means for introducing a known quantity of the tracer into the fluid, means for mixing the tracer with the fluid, means for measuring the resultant concentration of the tracer, and means for calculating the flow rate of the fluid. The tracer does not pollute the fluid and may be in the form of a physical tracer such as an air suspension (bubbles) or heat or may be in the form of a chemical tracer such as ozone. The rate of decay of the tracer is calculated and used to derive the fluid flow rate. Independent claims refer to the use of multiple downstream tracer sensing devices, sensors to measure a downstream impulse response, or the use of a holding tank.
Patent GB-2364584-A (GB)
Title: An information device
Inventor: GALE MARK STAFFORD
IPC: G07C1/00
Filed: 2000-12-04
Abstract: Means for displaying the value of a time-varying resultant of a calculation of which elapsed time from a temporal start point is a component, has means for selecting and storing at least one parameter value on which the calculation is based, for example the daily saving of money by not smoking, means for determining the temporal start point and means for displaying an updated result of the calculation 24.
Patent GB-2370923-A (GB)
Title: Wheel with a generator
Inventor: CHIU CHUN-CHEN
IPC: H02K7/18
Filed: 2001-01-09
Abstract: A permanent magnet stator 142 is mounted fixedly on the wheel axle 30 via insulating sleeve 14 and inter-digitated salient pole rotor 16 housing a winding 15 is secured by tabs 162,172 for rotation in wheel halves 10,12, said tabs forming respective winding terminals. Respective lead wires 104 extend between the tabs and the rotating shell of the bearing whilst non rotating metal contact rings 18 are mounted in contact with respective fixed bearing shells. Insulating bushings 19 cooperate with sleeve 14 insulating the bearing from axle, insulating sleeves 22 sheathing the connection between the rings 18 and leads 20.
Patent GB-2371404-A (GB)
Title: An optical device with a heat sink
Inventor: MARSH JOHN HAIG
IPC: H01S5/024
Filed: 2001-01-23
Abstract: An optically active device 10 has a device body 12 and a heat sink 28 retained in thermal association with one another. A first end 16, 18 of at least one optically passive region (s) 20, 22 is adjacent an end of an active region 14. The first end 16, 18, of the at least one optically passive region (s) is within an area of the heat sink 28, and the second end 24, 26 of the at least one optically passive region (s) is provided outside the area of heat sink 28. A method of forming the optically active device is also disclosed. The at least one passive region (s) 20, 22 may be a quantum well intermixed region. The quantum well intermixing may be achieved using a damage induced technique using vacancies. The technique may use a diode sputterer, to form a dielectric layer of silica in an atmosphere of Argon to introduce points structural defects at least in a proportion of the material adjacent the dielectric layer. A further dielectric layer may be deposited using plasma enchanced chemical vapour deposition. The device may be annealed. The device may be monolithic, and have a ridge structure ( Figure 3, 38) formed in a cladding layer (Figure 3, 34) which acts as an optical waveguide to laterally confine an optical mode in the device. The active layer may comprises AlGaAs, and have a refractive index of 3 to 3.5.
Patent GB-2359323-A (GB)
Title: Trim and glass run attachment structure in a vehicle door
Inventor: NOZAKI MASAHIRO
IPC: B60R13/06
Filed: 2001-02-05
Abstract: A flange 15b, 17a on the inner periphery of a vehicle window frame has mounted thereon a trim strip 18 of channel shaped cross section. To the outside of the flange is a channel shaped attachment groove 17 housing a separate glass run body 20 to guide and seal a window 14. The trim and glass run are in contact and the attachment groove forms part of the flange. Protrusions 17d and 16b on the attachment groove may cooperate with glass run limbs 20e and 20f to secure the glass run in place. It may be further secured by limb 20j interlocking with limb 18f of the trim strip. The door frame may comprise an inner panel 15 and an outer panel 16, connected by a door sash 17 from which the glass run attachment is formed. The welded join of the inner panel and the door sash may form the flange upon which the trim strip is mounted. The trim has a larger radius of curvature at corners than does the glass run. A shield plate (18h, figure 7) is disclosed to fill the gap between the two and so maintain a pleasing visual appearance.
Patent GB-2356960-A (GB)
Title: Method for remotely accessing vehicle system information and user information in a vehicle
Inventor: ABLAY SEWIM FEWSI
IPC: B61L3/12
Filed: 1999-08-24
Abstract: A communication system includes a vehicle (101) and an infrastructure (160). The vehicle contains vehicle system information (104) and user information (112). The infrastructure includes a processor (154) with an applications programm (155). The application is arranged to remotely access (200, 300, 400 and 500) the vehicle system information in a secure manner. The application is also arranged to remotely access (600) the user information in a secure manner.
Patent GB-2373177-A (GB)
Title: Improvements in or relating to a vehicle seat safety arrangement
Inventor: SVANTESSON ANDERS
IPC: B60N2/48
Filed: 2001-03-15
Abstract: A vehicle seat 1 has a head-rest 5 which is mounted for movement about a horizontal axis defined by a bar 7. Depending arms 12 extend downwardly in to the back of the seat and carry a pressure plate 13 at a position behind the torso of the occupant of the seat so that pressure applied to the pressure plate 13 (eg. during an impact) will cause the lower section of plate 13 to move rearward towards (Fig 3), the upper portion 18 to move forwards and the headrest 5 to move forward relative about bearings 8 which are enclosed within frame member 9. Pressure plate 13 is pivotally connected 14-17 to arms 12 to enable the arrangement to pivot to the maximum extent in a situation where the rear part of the seat is rigid, for example if the seat is a rear seat in a motor vehicle.
Patent GB-2362503-A (GB)
Title: Field emission type cold cathode structure with layer of fusible material and electron gun incorporating the same
Inventor: TOMII KAORU
IPC: H01J1/304
Filed: 2001-03-21
Abstract: A cold cathode emission structure consists of a base electrode 102, an insulator layer 103, a gate electrode layer 104 and emission tips 105. A layer of fusible material 61 is located between the emitter tips and the base electrode. The structure is designed for use in an electron gun such as in a flat screen display device. In another embodiment the insulator layer is located between the gate and main electrodes.
Patent GB-2369137-A (GB)
Title: Cutting arrangement
Inventor: GENESIS MINING TECHNOLOGIES PR
IPC: E21C35/18
Filed: 1999-12-06
Abstract: A cutting arrangement (10) includes a pick holder (12) having a bore (14) containing a sleeve (16) within which a shank (18) of a pick (20) is located. The pick (20) and the sleeve (16) each have heads (22: 24). The head (24) of the sleeve (16) has an outer abutting surface (26) and an inner abutting surface (30). The outer abutting surface (26) abuts an abutting surface (28) of the head (22) of the pick (20). The inner abutting surface (30) abuts an abutting surface (32) of the pick holder (12). The abutting surface (28) of the head (22) of the pick (20) has an outwardly curved formation (28.1) which abuts an inwardly curved formation (26.1) on the outer abutting surface (26) of the sleeve (16). The inner abutting surface (30) on the head (24) of the sleeve (16) has an outwardly curved formation (30.1). The abutting surface (32) of the pick holder (12) has an inwardly curved formation (32.1). The inwardly and outwardly curved formations (30.1: 32.1) abut one another.
Patent GB-2377573-A (GB)
Title: Storing images from a plurality of transmitters in a plurality of frame stores
Inventor: BOURNE DAVID RONALD
IPC: H04N7/18
Filed: 2001-07-11
Abstract: A video transmission system 400 includes a plurality of video transmitters 420, 430, 440 (cameras) and a video receiver 410. The receiver includes a plurality of frame stores 412, 414, 416 for storing video images from the respective plurality of video transmitters 420, 430, 440. The transmitted images may include a camera reference indication which is checked by the receiver which will then switch to the appropriate frame store for the camera. Preferably each frame store holds the last received intra coded frame received from its corresponding camera so that, if transmission is interrupted, when that camera begins transmitting again the intra frame does not have to be re-transmitted, and only update information is sent. The receiver may be arranged to signal to a camera to start or stop transmitting, the camera may send an end marker to indicate when it has finished transmitting update information, or a camera may be set to only transmit if a significant change in the image sequence is detected. The system may be a surveillance system with a plurality of cameras transmitting back to a central control receiver.
Patent GB-2365099-A (GB)
Title: Piston-type flush valve having a triple filtered bypass
Inventor: HALL DAVID C
IPC: F16K31/383
Filed: 2001-07-12
Abstract: A flush valve for use with urinals or water closets includes a hollow valve body 10, having an inlet 12, an outlet 14, and a valve seat 20 therebetween. There is a piston assembly 26 movable in the hollow valve body 10 to a closing position on the valve seat 20 to control flow through the valve. A pressure chamber 60 is above the piston assembly 26 for holding it on the valve seat 20. There is a bypass passage through the piston assembly 26 to connect the inlet 12 with the pressure chamber 60 to provide fluid to move the piston assembly 26 to the closing position. The bypass passage 62 includes a filter and an orifice (62, figure 4), with the filter including multiple filters in series between the inlet and the bypass, providing a three-stage maze-like path for the fluid flow. The filter are defined by a first and second set of radially extending slots 66, 70 formed between an inner and outer concentric array of molded vertical protrusions 68, 72 on piston 28, with an annular passage 74 formed between the slots 66, 70. The slots 66, 70 and passage 74 are sized to sequentially filter any particles which could clogg the bypasss orifice (62).
Patent GB-2378569-A (GB)
Title: Field emission backplate and device
Inventor: ROSE MERVYN JOHN
IPC: H01J9/02
Filed: 2001-08-11
Abstract: A field emission backplate, or device including such a backplate, comprising a plurality of grown emitter tips made from a semiconductor based material such as silicon. The backplate may be formed by first depositing a thin film of amorphous silicon on an aluminium substrate by plasma enhanced chemical vapour deposition. The tips are then grown on areas of the amorphous silicon layer which have been crystallised by exposure to a laser interference pattern, using a selective etch and growth process involving the use of a dilute silane/hydrogen plasma. The device may be constructed such that the backplate emits electrons into a vacuum or into a wide band gap light emitting polymer (figure 4). The device may also include a phosphorescent layer (figure 5). The device may be a display device.
Patent GB-2364241-A (GB)
Title: A carpet-stretching device
Inventor: WHITING JOHN
IPC: A47G27/04
Filed: 2001-09-06
Abstract: A carpet-stretching device 100 comprises a shank 110 having a first end provided with a head portion 130 carrying a plurality of carpet engaging pins 140 and an end portion 120 provided at a second end wherein the shank 110, head 130 and end 120 portion are generally linearly arranged so that when used for stretching a carpet laid over a floor onto a fixing strip, a force applied to the end portion tends to drive the carpet in a direction parallel to the device rather than towards the floor. A plurality of lateral ribs 150 may be formed on the underside of the shaft to provide strengthening means. Preferably the device 100 is manufactured as a single piece formed by die-casting aluminium or injection moulding a plastics material. Advantageously, the carpet stretcher is inexpensive, does not include moving pads, is light and may easily be released from the carpet after stretching.
Patent GB-2369141-A (GB)
Title: Method and apparatus for milling without a whipstock
Inventor: OHMER HERVE
IPC: E21B7/08
Filed: 2001-11-08
Abstract: An anchor (22, figure 1) supports milling apparatus (12, figure 1) downhole in a lined well bore. The apparatus includes mills 104, 106 which are mounted on a jointed, rotatable shaft 102. The shaft extends down the axis of the borehole from a motor 14 to a deflection control unit 20 which may be hydraulic, pneumatic, mechanical or electrical. In the embodiment shown in figure 2 a series of pistons 124, 126 and slots 114, 116 and pins 130, 132 are used. When the motor 14 is switched on, the shaft 102 and mills 104, 106 rotate. This rotation is detected by the control unit 20, which begins to deflect the shaft and mills, so that they become radially offset and engage the wellbore liner (10, figure 1), cutting a small window. While still in cutting engagement with the liner, the mills are driven on a longitudinal path by the control unit 20, extending the window to the desired length. As well as the formation of lateral branches in the wellbore, the apparatus 12 may be used to form slits for the propagation of electromagnetic waves for the purpose of testing the properties of the surrounding formation. Alternatively it may be used to form a pocket for the placement of measuring equipment.
Patent GB-2381877-A (GB)
Title: Integrated optical device
Inventor: VONSOVICI ADRIAN PETRU
IPC: G01B9/02
Filed: 2001-11-09
Abstract: A novel geometry for a Mach-Zehnder interferometer (MZI) is proposed. The interferometer includes a pair of directional couplers 34, 44, acting on a pair of waveguides 30, 32. Each directional coupler comprises an approach region 36, 46, in which the separation of the waveguides decreases, and an exit region 38, 48, in which the separation of the waveguides increases. The geometry is characterised in that in at least one directional coupler (preferably both), a waveguide is substantially straight in at least the approach region. As a result the structure is more compact thereby reducing the demand for chipspace on the substrate and the design is more suitable for construction as part of an array of MZIs. In another aspect the problem of bringing two waveguides together is addressed, a directional coupler has a pair of waveguides which approach one another, at least one waveguide is curved in first and second S-bends. The first S-bend reduces the separation of the waveguides by a larger amount that the second.
Patent GB-2367899-A (GB)
Title: Balanced charge flame characterization system and method
Inventor: JAMIESON JEREL S
IPC: F23N5/12
Filed: 2000-06-08
Abstract: A sensor for detecting characteristics of a flame includes a pair of electrodes that are spaced apart for passing an electric current through the flame. A pulse width modulator is coupled to the electrodes and generates an alternating current which flows through the flame. A controller operates the pulse width modulator to alter the duty cycle of the alternating current so that the average current through the flame is zero. Flame characteristic information is derived from the lengths of the positive and negative periods of the resultant alternating current.
Patent GB-2385846-A (GB)
Title: Dose dispensing apparatus
Inventor: DAVE RAJIV BOBBY
IPC: A61M15/00
Filed: 2002-02-22
Abstract: A programmable dispensing mechanism for dispensing primarily medication from a cartridge (60). The device is configured by a configuration cartridge 100 having user specific data. This is received in the dispensing mechanism in place of the medication cartridge. The configuration cartridge is then replaced with the medication cartridge and the dispensing of the medication is carried out in accordance with the information provided by the configuration cartridge.
Patent GB-2386038-A (GB)
Title: Channel estimation in a radio receiver
Inventor: KUTZ GIDEON
IPC: H04W24/08
Filed: 2002-02-27
Abstract: In a channel estimator for a RAKE receiver of wide-band CDMA data communications, high order interpolation is employed using four interpolation points per slot. A wide-band CDMA signal is de-spread at a mobile receiving station by a matched filter into a number M of narrow-band modulated signals, ie. a transmission is divided into M slots (M=4 in Figure 1). Each slot contains a pilot portion 6 and a data portion 5 which is further divided into N parts, eg. quarters (N=4 in Figure 1). The pilot symbols 6 from each slot are summed and output as x(M)(13-16 in Figure 2). Each filter (18-21 in Figure 2) receives all of these data quarters and summed pilot outputs and, for a given data quarter j in a given slot i (running from 0 to M-1), calculates the channel estimate as <EMI ID=2.1 HE=17 WI=46 LX=853 LY=1595 TI=MF> <PC>where F is the coefficient of a simple FIR interpolation filter, itself calculated from a LMS estimation of an N-order polynomial. The method can produce both Dedicated Control Channel (DPCCH) estimation and Common Pilot Channel (CPICH) estimation, and has low computational complexity.
Patent GB-2370278-A (GB)
Title: Well treatments using derivatized polymers
Inventor: DAWSON JEFFREY C
IPC: C09K8/20
Filed: 1999-03-16
Abstract: A method for treating a well comprises:<BR> ```combining a polymer material with an organic solvent to form a polymer-containing slurry;<BR> ```combining said polymer-containing slurry with a derivatizing agent, wherein said polymer material and said derivatizing agent react to form a derivatized polymer-containing slurry;<BR> ```combining said derivatized polymer-containing slurry with an aqueous solution, wherein said polymer material interacts with said aqueous solution to form a hydrated derivatized polymer-containing treatment fluid; and<BR> ```introducing said treatment fluid into said well. The polymer may comprise guar combined with a derivatizing agent in a slurry.
Patent GB-2376038-A (GB)
Title: Ultraviolet marking system for aiding aircraft take off, landing and manoeuvring on the ground
Inventor: EDGECOMBE GEORGE LOWTHIAN
IPC: B64F1/20
Filed: 2002-05-22
Abstract: The ultraviolet marking system, particularly for use on aircraft carriers and other navel aircraft carrying vessels, comprises a combination of UV fluorescent markings and at least one diffused UV light source positioned to illuminate the markings so as to aid take off, landing etc. The markings are in the form of an adherent coating comprising a mixture of a transparent or translucent binder chosen to bond to a surface to which the coating is applied and at least one UV fluorescent material dispersed in the binder and which has a rapid fading of fluorescence after extinguishing of the UV light. The UV fluorescent material may comprise zinc sulphide and/or cadmium sulphide or may comprise lithopone. The markings may be made on horizontal or vertical surfaces or on posts or poles. The binder may be chosen from any of the following groups of organic compounds: epoxies, polysiloxanes, vinyls, acrylics and combinations thereof. A top layer of small glass beads may be partly embedded in the binder/pigment mixture.
Patent GB-2375174-A (GB)
Title: Dipole logging tool
Inventor: HOYLE DAVID
IPC: G01V1/52
Filed: 2001-03-21
Abstract: A logging tool having a tool body, which can be positioned in a fluid-filled borehole, including a receiver section and a dipole transmitter; wherein the dipole transmitter includes a transducer with a shell having a reaction mass and a motor located therein, the motor operatively connecting the shell and the reaction mass such that only an outer surface of the shell is in contact with the fluid in the borehole. This new type of dipole source for well logging involves shaking all or part (axially) of a dipole tool body to produce a pure, broadband acoustic dipole signal while at the same time coupling as little energy as possible into the tool body. Important variations on this idea include a linear phased array of shaker sources, and active cancellation of tool borne noise.