baber/WOPTO huggingface dataset:
Patent GB-2289978-A (GB)
Title: Optical waveguide amplifier with different gains at different wavelenghts
Inventor: O'SULLIVAN MAURICE
IPC: H04B10/294
Filed: 1995-05-25
Abstract: An optical amplifier for use in a wavelength division multiplex (WDM) transmission system has a circulator 20 two of whose ports a, c constitute the input and output ports of the amplifier, and to whose third port b is connected an optically amplifying fibre 21. Bragg grating reflectors 22 are formed at specific intervals along this fibre 21 chosen such that each wavelength is reflected hack to the circulator 20 at a distance in inverse proportion to the gain per unit length experienced by that channel in the amplifierfibre (21), whereby all channels are amplified by the amplifier to the same extent. The reflection hands of the reflectors 22 are spectrally separated by intervening guard bands. The amplifier is pumped from optical pump sources 23 via polorisation beam splitter 24. <IMAGE>
Patent GB-2301687-A (GB)
Title: Machine control module for a processor
Inventor: COOPER GUY ALEXANDER
IPC: H04W52/04
Filed: 1995-07-11
Abstract: A machine control module for a processor includes a processor-independent kernel object and one or more processor-specific objects, the kernel object being responsive on initialisation to parameters identifying a processor-specific object to establish a link from the kernel object to the processor-specific object for initialising a machine controller on the processor, which may be a microcontroller or a microprocessor, for example. The kernel object is responsive to parameters identifying a processor-specific object to establish a pointer table containing pointers to the processor-specific object. The invention finds particular application to an element in a telecommunications system which has one or more processors for passing messages to and from the element, with the module being initialised on at least one processor.
Patent GB-2307038-A (GB)
Title: Baffle arrangement for distributing heat
Inventor: CROSSLEY PETER W
IPC: F23M9/06
Filed: 1995-10-28
Abstract: A baffle arrangement (22) for distributing the heat of a gas burner comprises a top plate (26) and below the top plate one or more baffle units (28) each of an inverted generally 'U'-shaped section, and each tapering in the same direction, the baffle units being fixed to the top plate by means of flexible fixings (34). The flexible fixings may be thin stainless steel brackets which will take up relative expansion and contraction between the baffle unit and the top plate without causing distortion. The tapered shape of the baffle units allows each baffle to overlap with the next successive baffle, leaving an open space therebetween through which hot gasses can escape.
Patent GB-2297862-A (GB)
Title: Displays
Inventor: SEATS PETER
IPC: H01J17/49
Filed: 1996-01-05
Abstract: A display comprises a matrix of cells (2) each having an anode 20 and a cathode 21 which is in the form of a field emitter, e.g. a cone or a layer of diamond. The cells contain an ionizable gas such as xenon or a mixture of xenon with other rare gases, and include fluorescent layer 18. Primary electrons emitted by the cathode excite the gas by collision in a weakly ionized plasma. Neutral atoms are then excited by the plasma to radiate VUV which is converted to red, blue or green light by the fluorescent layer. The cells may also include gate electrodes, and are connected to a conventional address and drive unit.
Patent GB-2298082-A (GB)
Title: Optically pumped laser in which light from pump source is split into two component beams
Inventor: MAAG ROBERT
IPC: H01S3/0941
Filed: 1996-02-09
Abstract: Optically pumped laser wherein the light beam P, which comes, for example, via light conductors 4 from the pump light source 200, is split into two component beams (T1, T2), for example, by a beam splitter 2. The two component beams (T1, T2) are directed to the laser medium 1 separately, for example, from both ends, or at an angle onto one end. The two component beams are preferably polarised and the optical systems are arranged so that the beams are aligned with the preferred direction of polarisation of the laser medium 1 to provide maximum transfer of the pump radiation. Laser media such as Nd:YVO4, Nd:YLF, Nd:LSB or Nd: YAP which have polarization-dependent absorption are especially suitable for pumping.
Patent GB-2311285-A (GB)
Title: Snap-on, twist-off container closure assemblies
Inventor: KING ROGER MILNER
IPC: B65D41/04
Filed: 1996-03-22
Abstract: The invention provides snap-on, twist-off container closure assemblies including one or more of the following features: (1) a sealing plug 39 on the closure 3 for insertion into the container neck 1, said plug 39 having an outer annular sealing recess or sealing rib 41 for engagement with an annular sealing rib or sealing recess 15 on the inside of the container neck 1 to form a seal; (2) complementary first and second locking elements 23,45 on the container neck 1 and the closure 3 which engage to resist twisting-off of the closure 3 from the neck 1 until a predetermined minimum opening torque is applied to the closure 3, the assembly further comprising an alignment means to align the first and second locking elements 23,45 when the closure 3 is snap fitted onto the container neck; (3) ramped first and second thread segments 5,37 on the container neck 1 and the closure 3 to reduce the axial force required to snap the closure 3 onto the container neck 1 relative to the axial force required to snap the closure 3 off the container neck 1; and (4) a sealing web on the container neck 1 and a compressible sealing wad in the base of the closure 3 to form a seal with the container neck 1 after removal of the sealing web. Further, a tamper-evident ring 35 may be provided.
Patent GB-2304807-A (GB)
Title: Wheeled refuse bin : lid support
Inventor: MORRISON ARCHIBALD
IPC: B65F1/16
Filed: 1996-08-19
Abstract: A detachable support 10 for use with a wheeled refuse bin provides a rest for supporting the lid of the bin in an open position for ease of handling, the support being formed from metal rod.
Patent GB-2316857-A (GB)
Title: Storage container for knives
Inventor: GORE NICHOLAS
IPC: A61B19/02
Filed: 1996-09-06
Abstract: A storage container (1) comprises a housing 2 having an opening (6) for receiving at least one object 12 (e.g. a knife) and containing a unit of flexible filaments 10 for supporting the object(s) 12 during storage. The filament unit 10 is removably fitted into the housing 2, such that it can be drawn out through the housing opening (6) for replacement or cleaning. Attachment means (38,39,41) may exist to attach the filament unit 10 to the housing 2, access for release of the filament unit 10 being possible via an opening 45 at the base of the housing 2. Optionally, the filament unit 10 may be made from a plurality of sub-units (16,18,20,22) releasably connected to a retainer element 24. The filament unit/sub-units 10/(16,18,20,22) may be formed by interconnecting the lower ends of the filaments (26,28,30,32), either by mechanical fusing or gluing. The housing 2 can have a support leg 14 capable of supporting the housing at an angle.
Patent GB-2303941-A (GB)
Title: Toner dispensing cartridge having a non-rotatable toner cup and a rotatable sleeve-cap
Inventor: WEED JOHN M
IPC: G03G15/08
Filed: 1996-03-15
Abstract: A toner dispensing cartridge having a hollow toner cup with an open end portion to which a sleeve-cap is fitted. The sleeve-cap has at least one opening forming a mouth portion. The sleeve-cap is rotatable relative to the hollow toner cup. An agitator element disposed within the hollow toner cup is connected to and rotatable by the sleeve-cap. With the hollow toner cup stationary, rotation of the sleeve-cap causes the agitator element to displace toner contained within the cartridge toward the mouth portion of the cartridge for egress of the toner through the mouth portion to toner receiving apparatus.
Patent GB-2321847-A (GB)
Title: Foldaway pet carrier
Inventor: PALFREMAN MARIE JOYCE
IPC: A01K1/02
Filed: 1997-02-05
Abstract: A pet carrier made from flexible material comprises a box shaped unit (1) which may be collapsed to a flattened form in a concertina-like manner. Mesh-covered openings (5), handles (2), a movable inner base member (6) and a shoulder strap (3) are provided.
Patent GB-2322614-A (GB)
Title: Foam-Producing Insert
Inventor: MONDSZEIN KARL
IPC: B65D85/73
Filed: 1997-02-27
Abstract: A foam-producing insert for a pressurised beverage container comprises separate inlet 16 and outlet 37 passages and a chamber 50 for containing gas. The inlet passage communicates with the headspace and the outlet passage communicates with the liquid. The chamber communicates with both passages via a thin gap 42. The inlet passage has greater resistance to gas flow than the outlet passage, preferably by being longer. During pressurisation of the container, the chamber is filled with gas through the inlet passage, rather than with liquid via the outlet passage, due to the liquid having a higher viscosity than the gas. On opening the container, the pressure within it is released, and gas is jetted out of the insert via the outlet passage in preference to the inlet passage, due to the greater resistance of the inlet passage. Preferably, the insert includes a tube 14 extending into the chamber, with the inlet passage provided at its inner end wall 15. The insert may comprise a cup-shaped portion 34 surrounding the outlet that receives the end of the tube, with the thin gap formed in between. As the gap may be convergent toward the outlet, a venturi effect may be produced, thus increasing the jetting power. The insert may float and be self-righting, and may comprise two mouldings 10, 30 snap-fitted together.
Patent GB-2318394-A (GB)
Title: Device for discharging cartridges containing plastics compounds
Inventor: DREVE VOLKER
IPC: B05C17/01
Filed: 1997-04-14
Abstract: A device for discharging two cartridges containing plastics compounds has a thrust piston acting on each cartridge base. Two mutually parallel cartridge holders receive one cartridge 1 each. The end-face outlet openings of the cartridges are connected to a mixing or delivery nozzle 4. The thrust pistons are displaceable parallel to the longitudinal extension of the cartridges, and are guided in an axially displaceable manner in the housing 3. A handle 5 extends from the housing. In the housing (3) an electric motor drive (6) Fig 2 drives the thrust pistons (2) which can be moved from a starting position to a final position corresponding to the complete discharge of the cartridge(s) (1). The housing can be split to allow the cartridges to be removed and new ones fitted. The motor rotates a shaft via a gearing. The shaft has an enlongate strip connected to it and a member connected to the free ends of piston rods. During operation the strip is wound around the shaft. Return movement is manual after the shaft is disconnected from the motor.
Patent GB-2324781-A (GB)
Title: Apparatus for feeding moulding material
Inventor: DEE JOHN CHARLES
IPC: B30B15/30
Filed: 1997-04-30
Abstract: An apparatus (10) for feeding moulding material towards a moulding station comprises a receptacle (11) for the moulding material at a first location, conveyor means (12) for conveying moulding material from the receptacle (11) towards a second location (13) and reservoir means (14) at the second location (13), the second location (13) being at or adjacent the moulding station, characterised in that the conveyor means (12) comprises a rotatable screw member (27) received in a casing (26), the rotatable screw member (27) having a generally central hollow.
Patent GB-2316637-A (GB)
Title: Workpiece allignment and handling system
Inventor: STOCKER MARK ANDREW
IPC: B24B49/12
Filed: 1997-06-11
Abstract: A workpiece alignment and shifting system for moving circular workpieces from a first inspection station to a second machining station, comprises workpiece holding means 20B for attachment to the face of a disc workpiece to move the latter from one position to another along at least two orthogonal directions 190, 202, both of which are parallel to the plane of the disc when it occupies the first station. The disc is rotated in the inspection station and in the machining station and inspection means determines the position of the geometric centre of the disc as it is rotated. Computing means then calculates the two shifts required along the orthogonal directions of movement of the robotic means, to move the geometric centre of the disc to a second desired position whose coordinates are known, e.g. those of the centre of rotation of the workpiece holder or chuck in the said second station.
Patent GB-2317714-A (GB)
Title: Controlling a pressure application resistant welding machine
Inventor: YAMAGUCHI TERUZO
IPC: B23K11/24
Filed: 1997-07-25
Abstract: A method of controlling a pressure application resistant welding machine comprises partitioning a moving region of the electrode 10 into a safety region A and a danger region B. The range of the safety region A is substantially the same as a maximum thickness of a workpiece 12 to be welded, and the range of the danger region B is substantially the same as the thickness of a foreign object (such as a finger) which could be inserted between the workpiece 12 and the electrode 10. The torque of the electric motor 1 generates a given pressure application force in the electrode 10 in the safety region A, but a much smaller force is generated in the danger region B so as not to injure the foreign object. Also, if a foreign object is detected in the danger region B, by an anomalous change of a current value of the electric motor 1, then the electrode motion is stopped. In the safety region A, however, the electrode 10 is allowed to continuously perform the pressure application operation even if the current value of the electric motor changes. A further safety region C may be defined.
Patent GB-2330998-A (GB)
Title: Seed germination medium
Inventor: HOLLOWAY DAVID HOWARD
IPC: A01C1/04
Filed: 1997-11-05
Abstract: A seed-germination medium comprising an upper layer (4) formed from a biodegradable material which is permeable to gases but substantially impermeable to water in liquid form; a lower layer (6) formed from a water-absorbent biodegradable material; seeds (8) being disposed beneath the upper layer (4); and the upper layer (4) having a plurality of perforations (12) therein to enable seedlings germinating from the seeds to grow therethrough.
Patent GB-2331799-A (GB)
Title: Lamp which induces an air flow in which an object may float
Inventor: TOPEN PAUL
IPC: G09F21/06
Filed: 1997-11-26
Abstract: A lighting apparatus having: a lamp head (2) mounting a fan (24 fig 3) and a lamp (31 fig 3); an object (12) for floating above the lamp head; and a stand (3 fig 1) for supporting the lamp head. Air flow induced by the fan (24 fig 3) is constrained to flow through a conduit (16 fig 3) which way contain uni-directional fins (26 fig 3), whereby a substantially non-turbulent flow of air is provided which is discharged from the lamp head onto the object (12), causing the object to be captively retained in a floating position above the lamp head (2). The lamp (31 fig 3) and lamp head (2) are formed and arranged so that light emitted from the lamp is directed onto the floating object. The object (12) may be transparent or reflective and the lamp may be arranged to project a visual image onto the object (12).
Patent GB-2322375-A (GB)
Title: Melt mix polymer blend for shaped articles
Inventor: HEINRICH ROLF
IPC: B29C48/03
Filed: 1997-12-08
Abstract: A material for making building materials such as roofing felt sheets, and shaped articles, comprises a melt mixture of a thermoplastic material and a rubber material. Preferred materials are, for the thermoplastic, polyethylene, polypropylene, thermoplastic polyurethanes and other vinyl polymers. Powdered polyethylene obtained from recycled polyethylene bottle closures is preferred. The preferred rubber material is coarse rubber powder. Mixing is preferably effected in an extruder to produce the desired shaped, such as sheet material. Flooring and acoustic insulation are mentioned as other uses. Filler may be added, with fillers having closed or open cells being preferred eg foam polystyrene granules. Fibrous filler may also be used.
Patent GB-2333696-A (GB)
Title: Tool for cleaning deposits from teeth of sprocket-drive wheels
Inventor: VOSS STEVEN ROBERT
IPC: B08B1/00
Filed: 1998-03-03
Abstract: The tool is held at its knurled end to cover a tooth and rotated so that the scraping edges at its tip remove deposits (such as glue) from around the tooth.
Patent GB-2338424-A (GB)
Title: Apparatus for playing a game
Inventor: GRAINGE FRANK GORDON
IPC: A63F3/00
Filed: 1998-06-20
Abstract: Apparatus for playing a game comprises a playing area marked off to an array of readily identifiable zones, a plurality of playing pieces and a random number generator which generates the identifying indicia of the playing spaces. The game is preferably played by casting a dice which indicates a zone thus dictating the possible movement of a playing piece.
Patent GB-2344596-A (GB)
Title: Flame retarded and UV light stabilised polyester film
Inventor: MACDONALD WILLIAM ALASDAIR
IPC: C09K21/12
Filed: 1998-12-09
Abstract: A polyester film, such as polyethylene terephthalate (PET) or polyethylene naphthalate (PEN), comprising at least one flame retardant and at least one UV light absorber. The flame retardant is an aromatic phosphorous containing compound. The UV light absorber is a triazine such as hydroxyphenyltriazine or metal oxide, such as titanium dioxide or zinc oxide. The polyester film may comprise a heat sealable layer. Further the polyester film may be co-extruded and stretched and is suitable for use as a protective layer on a metal sheet.
Patent GB-987599-A (GB)
IPC: G03C7/34
Abstract: 987,599. Substituted tetrahydronaphthanilides. AGFA A.G. July 24, 1962 [July 28, 1961], No. 28462/62. Heading C2C. [Also in Division G2] The invention comprises compounds of formula wherein R 1  is H or SO 3 M (M = H or 1 equivalent of cation derived from a metal, ammonia or an amine), R 2  is C 1-5 -alkyl, R 3  is C 8-18 -alkyl and R 4  is H, SO 3 M or SO 2 N(R 5 ) 2 , R 5  being H, C 1-5  alkyl or aryl; at least one of R 1  and R 4  is other than H. They are prepared by reacting phenyl 5,6,7,8 - tetrahydro - 1 - hydroxy - 2 - naphthoate with the appropriately substituted aniline, with possible subsequent sulphonation in the 4-position of the naphthalene ring. The initial phenyl ester is obtained by reacting the corresponding acid with POCl 3  and phenol. Intermediates.-4 - Chloro - 3 - nitrobenzenesulpho - N - butylanilide, prepared by reacting n-butylaniline with the appropriate sulphochloride, was reacted with methyl n-octadecylamine and the product reduced giving 3-amino- 4 - (methyl-n-octadecyl) -aminobenzenesulpho -N- butylanilide.
Patent GB-2330322-A (GB)
Title: Methods and apparatus for conditioning polishing pads utilizing brazed diamond technology
Inventor: HOLZAPFEL PAUL
IPC: B24B53/017
Filed: 1997-07-16
Abstract: A conditioning ring (200) having cutting elements (205) brazed-bonded to the bottom surface (204) of the ring and suitably adopted for conditioning a workpiece polishing pad (126) by contact with the pad. The conditioning ring (200) further includes a flange (202) extending about the bottom periphery of the ring (200) with the cutting elements (205) being attached to the bottom surface of the flange (202). The flange (202) includes cutout portions for permitting material to escape from the interior of the ring. The cutting elements (205) are distributed substantially uniformly across the bottom surface of the flange (202) and the elements are brazed-bonded to the flange (202) with a braised metal alloy, creating an extremely strong bond between the cutting elements (205) and the flange surface. Further, the conditioning ring (200) may be attached to a plurality wafer carrier elements (124) so that the conditioning process occurs during the actual polishing of the wafers (10), or the conditioning ring (200) may be attached to a mechanical arm which engages the ring against the polishing pad (126) in between wafer polishing steps. In either case, to enhance the conditioning process, the carrier element (124) and the mechanical arm rotate the ring (200) about its axis and oscillates the ring back and forth the polishing pad (126).
Patent GB-2334568-A (GB)
Title: Promoting circulation in hot/chilled water supply systems
Inventor: RAY NEVILLE GEORGE
IPC: F24D17/00
Filed: 1999-02-04
Abstract: Circulation in the hot water pipework 24 leading from a heat exchanger 12 to a draw-off point 14a is promoted between periods of use by a small diameter pipe 32 which extends within the pipework 24 down as far as the draw-off point (Fig 4) and is connected at its other end to a pump 36. This ensures that water in the pipework stays hot. The draw-off point may be a sink, wash basin, bath, shower or appliance. As shown, hot liquid is pumped from the heat exchanger 12 via another small diameter tube housed within pipework 22, through the pump 36, into the small diameter pipe 32, and out through the open end of the pipe 32 near the draw-off point. Alternatively, flow may be in the opposite direction. Either way, the cooled standing water in the pipework 24 is returned to the heat exchanger 12. A number of pipes 32 serving different draw-off points may be connected to the same pump 36 (Figs 5, 6). The draw-off points may instead be supplied by a ring main (46, Fig 8) and circulation in the pipework (24) surrounding each small diameter pipe (32) induced by a single pump (36) in the ring main circuit. The small diameter pipes 32 may be provided with adjustable restrictor valves 34. The system may be applied to chilled water supply systems.
Patent GB-2349825-A (GB)
Title: Extracorporeal blood circuit for removing MRI contrast agent from blood
Inventor: YOUNG IAN ROBERT
IPC: A61K49/18
Filed: 1999-05-11
Abstract: A separator for reducing the concentration of MRI contrast agent in the blood of a heart patient comprising a pump for connection to an intravenous catheter 6 and an intra-arterial catheter 7 and a magnetic separator 8 for separating the contrast agent from the blood passing between the two catheters. According to the embodiment, insert 9 is aligned in the path of the blood flow A, aligned with magnetic field B. Blood passing through tube 10 encounters wire mesh 13 carried on spools 11 and 12 at which point the strongly magnetised contrast agent will adhere to the mesh whilst the much less paramagnetic blood constituents such as oxyhaemoglobin will pass through the mesh. Quick removal of the contrast agent allows further images to be taken for quick assessment of the effectiveness of an injected thrombolytic agent.
Patent GB-2337300-A (GB)
Title: Fuel injector armature
Inventor: LAHNALA THOMAS ARTHUR
IPC: F02M51/06
Filed: 1999-05-11
Abstract: A movable armature is provided for use in a fuel injector having an inlet tube (18) with an inlet tube face (50 fig.3). The movable armature (14) includes an armature body having a central opening (56) formed therein with a flat, ring-shaped impact surface (52) surrounding the central opening (56) for abutting engagement against the inlet tube face (50). The armature body has a frustoconical or tapered surface (58) extending radially outwardly from the impact surface (52) to a peripheral edge (60) of the armature body.