baber/WOPTO huggingface dataset:
Patent GB-2282231-A (GB)
Title: Security apparatus
Inventor: FURSDON JAMES MACDONALD
IPC: G08B15/00
Filed: 1993-09-22
Abstract: Security apparatus (2) comprising a camera (4), detector means (6) for detecting the presence of an intruder, and switch means (8) for causing operation of the camera (4) consequent upon the detector means (6) detecting the presence of the intruder. <IMAGE>
Patent GB-2284311-A (GB)
Title: Hybrid notch filter
Inventor: RHODES JOHN DAVID
IPC: H01P1/20
Filed: 1993-11-24
Abstract: A hybrid notch filter comprises an impedance inverter network connected across a two port filter network. In its simplest form, the impedance inverter network comprises impedance inverters of substantially  2ROOT 2 characteristic admittance connected between the input and output ports across which the two port filter network is connected, and impedance inverters of substantially unity characteristic admittance interconnecting the  2ROOT 2 characteristic admittance impedance inverters at their respective ends. The two port filter network may be a plurality of serially connected resonators and is connected across the output ports of the impedance inverter network. The hybrid notch filter may be formed into a switched hybrid notch filter by providing a switch between an adjacent pair of resonators in the filter network. <IMAGE>
Patent GB-2274520-A (GB)
Title: Optical waveguide device
Inventor: STEWART WILLIAM JAMES
IPC: G02B6/26
Filed: 1994-01-13
Abstract: The device comprises an optical waveguide 13 on a substrate 11 which over part of its length forms one of a stack 15 of coupled optical waveguide sections of the same length, the stack being of a length such that a light wave of predetermined frequency propagating along the waveguide to enter the stack at one end thereof produces light waves at the other end of the stack which are substantially in phase adjacent each waveguide section. The device finds particular application for coupling light from a substrate waveguide into another waveguide, e.g. an optical fibre 27, off the substrate. <IMAGE>
Patent GB-2286719-A (GB)
Title: Field effect transistors
Inventor: BURROUGHES JEREMY HENLEY
IPC: H01L29/423
Filed: 1994-02-14
Abstract: The transistor 1 comprises a back gate layer 7 formed in a substrate 3 having a recess intersecting an edge of the back gate layer. The recess extends from an upper surface to a recessed surface 17 of the substrate. A conduction layer 19 including a channel region 29 is formed over at least part of the recess to cover the edge of the back gate layer 7. Source 23 and drain 27 regions are formed in the conduction layer 19 respectively in the vicinity of the recessed and upper surfaces. A front gate electrode 37 overlies the conduction layer between the source and drain regions. Conduction between the source and drain electrodes is controlled by applying a bias potential to the back gate layer 7. <IMAGE>
Patent GB-2286641-A (GB)
Title: Controlling gear change by controlling clutch fill pressure and shift pressure independently and according to engine speed
Inventor: FELDER JEAN-JACQUES
IPC: F16H61/08
Filed: 1994-02-17
Abstract: A transmission controller (40) is operative to measure engine speed from an engine speed sensor (46) or on the basis of a throttle position sensor (14) and to control the fill time and shift time of a gear change by adjusting the fill pressure and shift pressure applied to the on-coming clutch (C1-C5) substantially independently of one another. In use, the controller (40) stores a plurality of best fill pressures and best shift pressures for the various types of gear changes and for various engine speed ranges. More efficient gear change can be provided together with a reduction in clutch wear. <IMAGE>
Patent GB-2291073-A (GB)
Title: Drainage trap
Inventor: HUANG TAY THENG
IPC: E03F5/042
Filed: 1994-07-07
Abstract: A drainage trap includes a vessel 2 having a lid 18 and supported over a pipe 14 by a frame 16. The vessel 2 has an inlet and an outlet for waste material. The outlet is releasably closed by a pivotally mounted flap 8 counter-balanced by a weight 12. The flap 8 pivots open when a sufficient weight of waste material enters the vessel and bears on the flap. <IMAGE>
Patent GB-2282438-A (GB)
Title: Oil flow in a refrigeration circuit
Inventor: KONISHI HIROSHIGE
IPC: F25B43/02
Filed: 1994-08-01
Abstract: In a refrigerating circuit using a refrigerant containing hydroflorocarbon as a main component, an upwardly-extending refrigerant pipe has an inner diameter such that oil adhering to the inner wall of the pipe rises when refrigerant passes upwardly through the pipe. The circuit may also include an outlet header (5) having a suction pipe (9); and a silencer (8). The oil may be alkylbenzene oil or poly-alpha-olefin oil. <IMAGE>
Patent GB-2291873-A (GB)
Title: Fungicidal cyclopenta-oxazines and thiazines
Inventor: LAWSON KEVIN ROBERT
IPC: C07D265/12
Filed: 1994-08-03
Abstract: A compound of formula (I):   <IMAGE> wherein A, B, D, E, G and J are, independently, hydrogen, halogen, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted aryloxy, optionally substituted heteroaryloxy, optionally substituted alkenyl, optionally substituted alkynyl, nitro, cyano or NR<1>R<2>, or A and B or D and E or G and J together form an exocyclic methylene group which is optionally substituted by halogen or optionally substituted alkyl; wherein R<1> and R<2> are, independently, hydrogen, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted aryl or optionally substituted heteroaryl; and X, Y and Z are, independently, oxygen or sulphur, can be used to combat fungi, especially fungal infections of plants.
Patent GB-2282813-A (GB)
Title: Annular antigen scaffolds comprising thioether linkages
Inventor: CUNNINGHAM BARRY
IPC: C07K14/445
Filed: 1994-10-07
Abstract: Scaffolds of antigens are prepared by a convergent synthesis and coupling of soluble precursors comprising solubilizing groups. Cyclic peptide epitopes, known to be more effective immunogens than linear antigens because they are constrained to fewer conformations, are incorporated. In addition to the epitopes, linear T-haptens may be incorporated at either the C- or the N-terminus of the scaffold construct. The scaffolds constitute effective synthetic vaccines. The scaffolds are cyclised via a thioether linkage, the ring of which comprises from 3 to 10 lysine radicals, to which the epitope or antigen is bonded. The epitope or antigen is preferably an HIV V3 loop peptide, a malarial peptide, a GnRH peptide or a bacterial capsular polysaccaride.
Patent GB-2295384-A (GB)
Title: Dispensing valve
Inventor: BIRCHALL ANDREW BRYAN
IPC: B65G69/18
Filed: 1994-11-23
Abstract: A dispensing valve (10) enables a fluid such as a powder to be dispensed from one container (12) to another such as a flask (14). The valve assembly includes a duct (16) tapering to a port at one end, and a variable-length enclosure (34) supported within the duct (16), the enclosure (34) defining at one end a valve door (40) for the port, and including means (48, 50, 54) to clamp a lid (26) of the flask (14) to the outside of the door (40). The door (40) has a seal (42) to seal to both the port and the lid (26), and the flask (14) is also sealed to the outside face of the port. The valve enables a powder to be transferred between the containers (12, 14) without contacting any external surfaces of the flask (14), the lid (26) or the valve (16, 40). <IMAGE>
Patent GB-2297190-A (GB)
Title: Electron tubes with graphite coating to reduce multipactor dishcarge and diamond layer to conduct away heat
Inventor: WARD KEVIN DENNIS
IPC: H01J23/12
Filed: 1995-01-21
Abstract: In an electron tube such as a travelling wave tube, a ceramic member 1 having a surface exposed to electrons during operation of the tube bears a layer of diamond 3 and a top thin layer of graphite 4. The graphite tends to reduce multipactor discharge from the surface of the component hence allowing the tube to operate at relatively high power levels. An electrically conductive member 7 for the transmission of high frequency radiation may pass through the member 1 and carry a diamond layer for the conduction of heat from the interior of the tube. The transmission line is coaxial and tapered with a diamond coating.
Patent GB-2298233-A (GB)
Title: Lock alarm warning of un-removed key.
Inventor: HILL WILLIAM GEORGE
IPC: E05B43/00
Filed: 1995-02-24
Abstract: A warning (e.g. sound or light signals) is generated by a door lock if the key is not removed. As described a switch is incorporated between the inside door furniture and the cylinder of a conventional door lock, which switch is operated either by the end of an extra long key projecting beyond the end of the cylinder, or by a normal length key in conjunction with a plunger mediating between the cylinder bore and the switch. A delay timer may prevent the annunciator from being activated until a reasonable time for key-removal has elapsed.
Patent GB-2300247-A (GB)
Title: Weapon
Inventor: LOWNDES ROY BASIL WALTER
IPC: E01F13/12
Filed: 1995-04-27
Abstract: A weapon (10) is provided comprising a body (11), and a plurality of impingement elements (14), each impingement element being elongate and having a sharp end (14 a ) adapted to penetrate, and a base end (14 b ). Each impingement element (14) being mounted by its base (14 b ) in the body (11), so that on deployment the impingement elements (14) extend from the body (11). The weapon (10) further comprises explosive means (15), and detonation means (17) adapted when the weapon (10) is armed, to detonate the explosive means (15) in the event that one of the impingement elements (14) is urged inwardly of the body (11). The weapon may be dropped from the air and may be used as a runway denial weapon.
Patent GB-2291690-A (GB)
Title: Device for replacing lead piping
Inventor: JAVELLE PHILIPPE
IPC: F16L55/165
Filed: 1995-07-26
Abstract: A device for replacing buried lead connection pipes, without digging ditches, the said device comprising a cutting tool and an expanding cone which also acts as a means for pulling replacement plastics piping. The device comprises a traction stand 5 on which there is mounted a device 6 actuating a double-drum reel 7 via a traction cable 8 wound on to the drum (7a) (Fig. 2) of larger diameter. The cutting tool 10 (Fig. 3) is positioned at one end of a cable 9 which is introduced into the buried lead piping 1 and is secured to the drum of smaller diameter. The rear portion (14) of the expanding cone 11, is reamed so as to accommodate a locking stop device (15) which locks the expanding cone (11) on the cable 9 introduced into the lead piping 1 and also pulls the replacement plastics piping 12. <IMAGE>
Patent GB-2296965-A (GB)
Title: Melting device for a granulate thermoplastic material
Inventor: PUFFE WOLFGANG
IPC: B29B13/02
Filed: 1995-12-19
Abstract: Equipment for melting thermoplastic granules comprises a tank (7) with vertical sidewalls (13, 14), an upper inlet (10) for feeding granules, a lower outlet (21) for liquefied material, one or more heaters (11, 16) between inlet (10) and outlet (21) and a horizontal cooler (12) between the inlet (10) and heaters (11, 16) and covering the tank (7) cross-section.
Patent GB-952898-A (GB)
IPC: C08F4/50
Abstract: 952,898. Polymerization catalysts for epoxides. HERCULES POWDER CO. March 13, 1961 [March 31, 1960], No. 9089/61. Heading B1E. [Also in Divisions C2 and C3] A catalyst for polymerizing epoxides (see Division C3) comprises the reaction product of a halogen-free organomagnesium compound having the formula RR<SP>1</SP>Mg, where R is a hydrocarbon radical and R<SP>1</SP> is H, OR, NR 2 , SR or a hydrocarbon radical, with a polyreactive compound, the mole ratio of polyreactive compound to magnesium compound being from 0À04/x:1 to 2À8/x:1 where x is the number of functional groups in the polyreactive compound, the product retaining magnesiumcarbon bonds in an amount of 0.2 to 1.8 hydrocarbon groups per magnesium atom. Examples of magnesium compound starting materials are dimethyl, diethyl, dipropyl, diisopropyl, di-n, iso- and tert.-butyl, diamyl, dioctyl, dicyclohexyl and diphenyl magnesium, ethyl and butyl magnesium hydrides, methoxymethyl magnesium and ethoxy ethyl magnesium. Mixtures may be used. The polyreactive compound may be organic or inorganic and the two or more reactive groups may be active hydrogen, C=O, N=O, S=O, P=O, C=S, P=S, N=N, C#N, &c. A large number of such compounds is given including water, polyols, polyhydric phenols, ammonia, amines, aminoalcohols, hydrazines, amides, sulphenamides, sulphonamides, hydrogen sulphide, thiols, alkyl sulphides, sulphones, hydroxysulphones, sulphoxides, organic and inorganic acids, ketones, esters, nitro- and nitroso-alkanes, nitriles, hydrate of formaldehyde, (HNS)4, nitrosophenols, sulphinic acids, hydrogen phosphites, thioacids, hydrogen cyanide, carbon dioxide, glyoxal, nitrobenzene, nitrogen dioxide, sulphur dioxide, phosphorus pentoxide, phosphates, carbon disulphide, phosphorus sulphides, nitrogen sulphides, cyanogen, azobenzene, nitrosoaldehydes and nitrosoketones. The catalysts may be complexed by reaction with, for example, an ether such as dioxane, tetrahydrofuran or diethyl ether, a thioether, aminoether, tertiary amine or tertiary phosphine. They may be used immediately or aged or heat-treated. They may also be prepared in situ in the monomer. Formulae of the catalysts are suggested. Reference has been directed by the Comptroller to Specification 870,418.
Patent GB-2314642-A (GB)
Title: Twisted nematic liquid crystal device
Inventor: WALTON HARRY GARTH
IPC: G02F1/1337
Filed: 1996-06-26
Abstract: A twisted nematic liquid crystal device has a liquid crystal layer 20 between a pair of alignment layers 22 and 24. Glass plates 30 and 32 with electrodes 26 and 28 are disposed on opposite sides of the layers 20, 22 and 24. The alignment layers 22 and 24 have their alignment directions disposed mutually perpendicular and at 45‹ with respect to adjacent linear polarisers 34 and 36. The pretilt angle of liquid crystal molecules in a surface region 20a of the layer 20 adjacent the alignment layer 22 is different to that of liquid crystal molecules in a surface region 20c of the layer 20 adjacent the alignment layer 24.
Patent GB-2299872-A (GB)
Title: Defrosting apparatus for refrigerators and method for controlling the same
Inventor: YOO HAN-JU
IPC: F25D21/06
Filed: 1995-11-17
Abstract: A defrosting apparatus for a refrigerator and a method for controlling the defrosting apparatus, wherein the refrigerating compartment (3) is cooled irrespective of the internal temperature of the freezing compartment (2) when the internal temperature of the refrigerating compartment (3) is higher than a predetermined temperature, so that the refrigerating compartment (3) is maintained below the predetermined temperature. The defrosting operation is carried out in accordance with the drive times of the compressor and refrigerating compartment fan (44) when the internal temperature of the refrigerating compartment (3) is higher than the predetermined temperature even though the compressor and refrigerating compartment fan are continuously driven. Accordingly, it is possible to improve the cooling efficiency. For the rapid refrigerating operation, the point of time when the defrosting operation for the refrigerating compartment (3) begins is accurately determined by calculating a temperature drop gradient on the basis of a variation in the internal temperature of the refrigerating compartment (3). For the rapid freezing operation, the point of time when the defrosting operation for the freezing compartment begins is accurately determined by calculating a temperature drop gradient on the basis of a variation in the internal temperature of the freezing compartment. In either case, accordingly, it is possible to efficiently achieve the defrosting operation.
Patent GB-2300661-A (GB)
Title: Method and apparatus for installing a hollow suction pile in the bottom of a body of water
Inventor: HOGERVORST JOHANNES RUDOLF
IPC: E02D27/52
Filed: 1995-01-18
Abstract: During the installation of a hollow suction pile (1) in the bottom of a body of water, the pile is lowered onto the bottom and the pressure in the interior (6) of the pile (1) is reduced shockwise a number of times until the pile (1) has penetrated the bottom (2) to the required depth. For the shockwise reduction of the pressure, the interior (6) of the pile (1) is brought into connection with a room wherein an under-pressure has been created, the room forming part of an apparatus (7) which is mounted on the hollow pile (1). The relevant room is subjected to an under-pressure by closing it and evacuating the water present therein by pumping.
Patent GB-2317031-A (GB)
Title: Optimization control apparatus and optimization control method for array descriptions
Inventor: HARAGUCHI MASATOSHI
IPC: G06F9/45
Filed: 1996-09-04
Abstract: In order to generate optimum codes for array descriptions having a new language specification, an optimization control apparatus or method for array description executes a function of determining a scope of executing optimization (2) for the array descriptions on the basis of an optimization level (3) determined in advance, the dimension number (4) of an array of the array descriptions, and the array number (4) of each dimension; a function of extracting information (5) representing the respective forms of the array descriptions within the scope of executing the optimization; a function of detecting a common expression (6) for each array description and recognizing information common to each array description; and a function of executing a loop merge determination process (7) as to whether or not a loop merge for converting each array description to an optimum loop (8) is to be carried out, for each array description whose form is defined during the generation of the optimum codes.
Patent GB-2312826-A (GB)
Title: Back protector
Inventor: JULIN JASMINE
IPC: A41D13/05
Filed: 1997-05-06
Abstract: A back protector (1) for a motorcyclist comprises a protective part (3), shoulder straps (4) and fastening means for securing the back protector (1) to the motorcyclist's trousers (2). The first ends of the shoulder straps (4) are secured to the upper end of the protective part (3). The second ends of the shoulder straps (4) are fastened to the front side waistband of the trousers (2) by fastening means (5). The lower end of the protective part (3) is fastened to the back side waistband of the trousers (2) by similar fastening means (not shown). Holes in the protective part (3) lighten the protector and allow the back to breathe. The back protector (1) serves both as a protector against falling and as a pair of braces.
Patent GB-2313430-A (GB)
Title: Urine collecting device and valves
Inventor: PAYNE STUART GORDON
IPC: A61F5/44
Filed: 1997-05-23
Abstract: A urine collecting device comprises an elongate portion (22) opening into an integral collecting portion (24) the elongate portion has an inlet (26) remote from the collecting portion and the collecting portion has an outlet (28). The elongate portion is shaped such that it lies flat against and follows the contours of a users leg. A non-return valve may be provided at the inlet. The valve has a passageway (45) through it and may have a ball (50) which blocks an aperture (48) to prevent flow of urine in one direction but allows flow of urine in the opposite direction through the passageway. Alternatively, a resilient flap (64, Figure 4)may provide the valving function. Urine samples may be drawn from a port (44) provided in the valve. The valve may be used with a tap comprising a clamp for clamping an outlet tube fitted to an outlet of the valve.
Patent GB-2329700-A (GB)
Title: Cryostat systems
Inventor: STAUTNER WOLFGANG ERNST
IPC: F25D3/10
Filed: 1997-09-30
Abstract: In a cryostat system comprising first and second liquid interconnected helium baths (2,4), with a superconducting magnet coil structure (6) immersed in one of the baths, a pulse tube refrigerator is located directly within the two baths. The pulse tube refrigerator has a 'cold finger' (12) having warm and cold ends (14,16). The cold end (16) extends into the bath (4) housing the superconducting magnet coil structure. A heat exchanger (26) is connected to the cold end of the pulse tube refrigerator. The pulse tube refrigerator can also serve to cool the radiation shields (8,10). The system may comprise a single bath having an internal partition separating the bath into first and second volumes of helium. The internal partition mat be a hollow or evacuated disc or a disc made from thermally low conducting material.
Patent GB-2316588-A (GB)
Title: Rules based electronic message management system
Inventor: FINNEY MICHAEL S
IPC: H04L12/58
Filed: 1996-05-08
Abstract: A system for managing electronic messages (24) is disclosed. Recipients (22, 26, 28) of electronic messages may define a set of rules for accepting incoming messages. These rules are applied by a message distributor (18) at substantially the initial point of distribution so that delays in routing messages are reduced. Additionally, network (14) traffic may be reduced because message routing is more direct.
Patent GB-2319421-A (GB)
Title: Target tracking
Inventor: CHEONG SEONG-HAK
IPC: G01S3/782
Filed: 1997-11-13
Abstract: The shape of a target is extracted from an initial scene viewed by a videophone camera which includes an initial image of the target to be tracked, and then an area containing the target is extracted as a correlation area. Based on the correlation area, a checking area is extracted from a current scene and checked for a correlation with the correlation area. The change in position of the target is calculated to estimate movement of the target. The camera is moved to the target. The correlation area can be acquired either by extracting a boundary pixel of the target on the basis of changes in luminosity and scanning to extract a shape of the target which serves as the correlation area, or by quad-tree dividing and merging a window including the target on the basis of a luminosity of each pixel.
Patent GB-2321604-A (GB)
Title: Filter unit for medical use
Inventor: PAGAN ERIC
IPC: A61M16/00
Filed: 1998-01-08
Abstract: A medical breathing filter has a flexible tubular outer housing 5 having one port 2 connected to the patient and another port 6 connected to receive ventilation gas. A flexible, tubular filter element 10 is sealingly joined within housing 5 between ports 2 and 6 using mounting ring 11. Element 10, which resembles a "W" shape, comprises an outer tubular portion 14 tapering slightly to end 15 where it joins inner tubular portion 16 which, in turn, tapers slightly in the opposite direction to and is coaxially mounted within outer tube 14 to form a closed end at central portion 18 of mounting ring 11. Thus gas flowing through the housing 5 must flow through the thickness of the filter element 10. The surface of filter 10 may be corrugated or creased to increase its surface area and flexibility. Different tubular filter constructions are described involving single elements such as helical element (70), radially-pleated ruff with (40) or without (30) an inverted conical centre (41), tube (81) or a number of elements connected in series such as conical elements (50), (51), (52), (53) and (54) (Fig. 9, not shown). A heat and moisture exchange element may also be included in the form of a foam layer (42) attached to the surface of filter element 10 (Fig. 8, not shown).