baber/WOPTO huggingface dataset:
Patent GB-2282351-A (GB)
Title: A method of combattiing submarines
Inventor: BUGIEL GEORG
IPC: F42B21/00
Filed: 1987-04-01
Abstract: In a method of combatting submerged submarines (11), individual effective bodies (19), or groups of them, are delivered by means of carriers (16), directly or from a launching apparatus (15) into the region above the immersion area (18) of the suspected submarine (11). After an entry into the water (17) at small angles of immersion, the effective bodies (19) are steered by means of flow-dynamic steering means (25) into a circular path approximately parallel to the surface of the water, so that they sink along a shallow spiral path of motion (26). When an effective body (19) acquires a submarine (11) by means of its echo-sounding location device (30) which is orientated rigidly ahead, an underwater drive device (32) is started, in order if possible to pierce the outer hull of the submarine by reason of the high kinetic energy of the effective body (19) of relatively small diameter and to detonate its warhead (34) against the pressure hull of the submarine. <IMAGE>
Patent GB-2206317-A (GB)
Title: Foldable wheelbarrow
Inventor: GREGG JOHN DUDLEY WELL
IPC: B62B1/20
Filed: 1987-05-12
Abstract: The barrow comprises a folding tubular framework to which is attached a container 3 polymer fabric or other lightweight sheet material such that on folding of the framework the container also folds. The framework may comprise generally trapezoidal frames 1, 2 pivoted together, with a rest support 5. Alternatively the frame 1 may be replaced by a "U" or "V" shaped frame bearing a single wheel, pivoted to a generally trapezoidal frame having side extensions providing rest support (Fig 3). <IMAGE>
Patent GB-2195492-A (GB)
Title: Foamed high-temperature chemical resistant seal material
Inventor: SINGELYN JAMES D
IPC: H01M8/24
Filed: 1987-06-02
Abstract: A seal material having improved sealing characteristics and useful in high temperature, corrosive environments, particularly fuel cells is disclosed. The material comprises an acid resistant, high temperature stable fluorinated elastomer and a blowing agent which activate at a temperature within the range of curing temperatures of the elastomer. Improved sealing characteristics due to volume expansion of the seal material applied and activated within the fuel cell were observed. The process of activating the seal material at the operating temperature of the fuel cell is also disclosed. The invention also discloses the process of using the seal material within a fuel cell.
Patent GB-2193005-A (GB)
Title: Photoreactive lenses and pyran compounds
Inventor: HELLER HARRY GEORGE
IPC: C07D493/04
Filed: 1987-06-15
Abstract: Photoreactive plastics lenses are disclosed which are coated or impregnated with an adamantane 2-spiro-benzo or naphthopyran and with a blue colouring pho tochromic benzo- or naphthopyran having a nitrogen containing substituent in the 2-position in the pyran ring. The lenses darken in sunlight and fade rapidly at ambient temperatures in the dark or in white light which does not contain a U.V. component. The combination of the yellow/orange colouring adamantane 2-spiro pyran compound with the purple/blue colouring pyran gives a desired brown/grey colouration in the sunlight-darkened lens. The invention includes novel blue-colouring pyran compounds in which the nitrogen-containing substituent in the 2-position is a phenyl group having an amino or substituted amino or nitrogen-containing heterocyclic substituent in the ortho- or para-position of the phenyl group.
Patent GB-2196112-A (GB)
Title: Optical fibre measurement apparatus and method
Inventor: ROGERS ALAN JOHN
IPC: G01D5/353
Filed: 1987-08-18
Abstract: A monomode birefringent optical optical fibre 3 possesses two polarisation eigenmodes whose relative velocity depends on an external parameter. The magnitude of the external parameter (measurand) is determined by measuring the change in relative velocity either as an average over the length of the fibre or distributively, the latter allowing the distribution of the measurand to be determined as a continuous function of position along the length of the fibre. The velocity change is measured by causing the two eigenmodes (after polarisation control at 6) to interfere optically on the surface of a "square-law" photodetector 8. This interference yields a difference frequency which may be either averaged over the fibre propagation time to give a "point" measurement, or time resolved to give a measurement spatially distributed along the length of the fibre. The external parameter may be temperature, strain, pressure, or an electric or magnetic field. <IMAGE>
Patent GB-2210149-A (GB)
Title: A wallcovering steam-stripping machine
Inventor: ELSEY LESLIE
IPC: F22B1/28
Filed: 1987-09-21
Abstract: A wallcovering steam-stripping machine comprises a liquid container 11, a heating element 14 and above element 14 a safe liquid-level sensing float switch 16. Outside the container is an audible/visual low liquid-level indicator 19 connected to one contact of a two position relay operated by the switch 16. The other contact of the relay is connected to the heating element 14. This arrangement is such that the heating element 14 is only activated when there is a safe level of liquid in the container, otherwise the low liquid-level indicator 19 is activated to give an alarm. <IMAGE>
Patent GB-2211520-A (GB)
Title: Localised lavatory extraction system
Inventor: AUJLA R RAJINDER SINGH
IPC: E03D9/052
Filed: 1987-10-29
Abstract: A secondary cistern seat 2 with an air cavity attaches to the bottom of the conventional cistern seat 3. The air cavity opens to inner and outer orifices and to the outlet connected to the extraction fan 4 to provide suction. A rubber ring is fixed to the bottom of the seat to provide an airtight seal between the ceramic cistern and the secondary seat for effective extraction from the cistern. The system then provides a means of removing the bad odour from the cistern as soon as it is released. The system may be operated via a manual switch or automatically by a micro-switch. <IMAGE>
Patent GB-2207546-A (GB)
Title: Thin film resistors
Inventor: ALLAN DAVID ARTHUR
IPC: H01C7/00
Filed: 1988-03-30
Abstract: A thin film resistor for use on II-V semiconductor material substrates comprises an amorphous layer of tungsten and silicon, preferably in the molecular ratio 5 to 3. In a method of fabricating such a resistor, a composite target is diode sputtered at radio frequency. The composite target comprises a high purity silicon plate overlaid with an apertured sheet of high purity tungsten, the arrangment providing particularly good control of the proportions of tungsten and silicon in the deposited film. The resistors find particular application in analogue and digital GaAs integrated circuits.
Patent GB-2206560-A (GB)
Title: Roll tape measure
Inventor: HURTZ WINFRIED
IPC: G01B3/10
Filed: 1988-07-06
Abstract: A roll tape measure comprises a flexible tape 11 bearing measurement graduations, coiled around a core within a housing 20 and subjected to the action of a return spring (16, Fig. 8) which seeks to retract the tape into the housing. Locking means (40, 42, Fig. 4) are provided to lock the withdrawn useful length of the tape member. To facilitate use of the roll tape measure, the housing has a tear-drop shaped peripheral contour 28. Thus, a segmental region 25 of the housing 20, which otherwise has a cylindrical shape 24, is replaced by a triangular prism 26, with equal opposite walls 27,27' meeting at an apex 29 with the exit position 30 for the tape located at the apex 29 of the triangular prism 26. <IMAGE>
Patent GB-2224061-A (GB)
Title: A panel assembly
Inventor: HULLIS BARRIE JOHN
IPC: E06B3/70
Filed: 1988-10-21
Abstract: A panel assembly, e.g. a door or drawer front for a kitchen unit, comprises a panel (1) pivotably mounted within a frame (2) about an axis (Y) parallel to the plane of the panel (1). Opposite sides of the panel (1) may be of different appearance, e.g. colour, decoration, texture or of different material. The panel (1) may be pivoted through 180 DEG  to display one or other side of the panel at will. Locking means in the form of retractable pins (4) may be provided. <IMAGE>
Patent GB-2217395-A (GB)
Title: Plastic retainer for bearing
Inventor: ARAMAKI TERUO
IPC: C08G75/02
Filed: 1989-01-30
Abstract: A plastic retainer made of straight-chain polyphenylene sulfide resin.
Patent GB-2220132-A (GB)
Title: Dispenser for granular material
Inventor: MAHON KEVIN
IPC: B65D47/28
Filed: 1989-06-30
Abstract: A dispenser for granular material comprises a housing 11 having two compartments 13, 14 for storing granular material, for example salt and pepper. Each compartment 13, 14 has a dispensing outlet 23, 22 respectively at its upper end 16. A slidable cover 18 is arranged to slide in a channel 17 to selectively close either one of the dispensing outlets 22, 23 such that when the dispensing outlet of one compartment is open, the dispensing outlet of the other compartment is closed. <IMAGE>
Patent GB-2235012-A (GB)
Title: Orthotic device
Inventor: FARMER IAN RICHARD
IPC: A61F5/01
Filed: 1989-08-09
Abstract: An orthotic device suitable for the investigation and treatment of joint malfunctions includes a first member (20) rotatably connected to a second member (21). Two adjustable limits (41, 42) restrict the relative rotation of the members and over-ride means are provided to allow rotation beyond the limits (41, 42). Means are also provided for locking the first and second members in at least one fixed position. The limits (41, 42) may be fitted selectively in bores (43, 44) in one face of the member (20) while the opposite face is formed with slots (50, 51). A tongue which is normally received between the limits (41, 42) may be retracted by the over-ride means (72) and turned round so as to engage instead in one of the slots (50, 51). <IMAGE>
Patent GB-2222483-A (GB)
Title: Piezo-electric device
Inventor: FUJITA MASANORI
IPC: H01L41/18
Filed: 1989-08-30
Abstract: A piezo-electric device, suitable for use in a piezo-electric motor or sensor, comprises first and second electrodes (1, 2), between which ferro-electric liquid crystal materials (3) is contained by a sealing member (6). The electrodes (1, 2) are mounted on glass supports (5) and are covered by alignment layers (4). The alignment layers undergo a homogeneous alignment process involving strong rubbing in parallel. The material of one alignment layer attracts spontaneous polarisation of the ferro-electric liquid crystal and the material of the other alignment layer repels such spontaneous polarisation. <IMAGE>
Patent GB-2223996-A (GB)
Title: Tanker vehicle e.g. for sludge, with a driven vacuum pump
Inventor: COFFEY MANUS
IPC: B60P3/22
Filed: 1989-09-05
Abstract: The tanker vehicle comprises a tank (7) for drawing and carrying sludge from a latrine pit, mounted on a chassis (2) comprising a pair of front side members (14) and (15) and a pair of rear side members (19) and (20) joined by a cross member (16). An engine (25) drives the rear wheels (4) through a clutch (26), a main gear box (29), a drive shaft (30) and a back axle (5). A vacuum pump (33) for applying a vacuum to the tank (7) for drawing sludge into the tank (7) is mounted in the chassis (2) between the rear side member (20) and the drive shaft (30). A secondary gear box (35) mounted between the clutch (26) and main gear box (29) transmits drive from the engine (25) through a further drive shaft (34) to the vacuum pump (33). <IMAGE>
Patent GB-2223017-A (GB)
Title: Pyridine and pyrimidine intermediates
Inventor: ANTHONY VIVIENNE MARGARET
IPC: C07D239/52
Filed: 1989-10-11
Abstract: Compounds of formula:   <IMAGE> wherein W is a substituted pyridinyl or substituted pyrimidinyl group linked to A by any one of its ring carbon atoms; A is either an oxygen atom of S(O)n, wherein n is 0, 1 or 2; X, Y and Z, which are the same of different, are hydrogen or halogen atoms, or hydroxy, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted aryl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkylthio, optionally substituted aryloxy, optionally substituted arylalkoxy, optionally substituted acyloxy, optionally substituted amino, optionally substituted acylamino, nitro, cyano, -CO2R<3>, -CONR<4>R<5>, -COR<6> or -S(O)mR<7> (wherein m is 0, 1 or 2) groups, or any two of the groups X, Y and Z, when they are in adjacent positions on the phenyl ring, join to form a fused ring, either aromatic or aliphatic, optionally containing one or more heteroatoms; R<1> is optionally substituted alkyl; provided that when W is 5-trifluoromethylpyridin- 2-yl, A is oxygen, X is hydrogen, and R<1> is methyl, Y and Z are not both hydrogen, Y is not F, Cl, methyl, nitro, 5-CF3, 4-(CH3)2N if Z is hydrogen and Y and Z together are not 3-nitro-5-chloro, 3,5-dinitro, 4,5-dimethoxy or 4,5-methylenedioxy; and R<3>, R<4>, R<5>, R<6> and R<7> which are same or different, are hydrogen atoms or optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, or optionally substituted aralkyl groups, are intermediates in the production of agriculturally useful acrylic acid derivatives.
Patent GB-2226729-A (GB)
Title: Infrared communication network
Inventor: SIM SYLVIA MUI LENG
IPC: H04B10/00
Filed: 1989-10-31
Abstract: An infrared communications network includes a plurality of infrared transceivers (1, 2) in predetermined fixed locations such as suspended from the ceiling of an office or warehouse, and at least one movable infrared transceiver (4) eg. a computer, producing a beam of infrared radiation which is aimed at one of the fixed infrared transceivers to establish a communications link. For two-way communication, the fixed infrared transceivers illuminate the area therebelow with diverging beams of infrared radiation. To facilitate the aiming of the infrared beam from the movable transceiver, a visible light marker (9) Fig 2 is preferably projected to give an indication of the orientation of the beam. <IMAGE>
Patent GB-2227143-A (GB)
Title: Mobile radio-telephone system with mobile units and base stations
Inventor: MCCANN KENNETH DAVID
IPC: H04B7/185
Filed: 1989-11-27
Abstract: Each mobile radio-telephone 4 has a unique identification code and responds to reception of a signal broadcast on a unidirectional link which contains the identification code thereof by transmitting a signal on a bidirectional communications link. If the mobile radio-telephone is within range of base station 5, then the latter responds on the bidirectional link establishes a communications channel between the mobile unit and the caller. If the mobile radio- telephone is not within range of a base station it will not receive a response and, after a predetermined time with no response, it may store information on the call-in attempt, or indicate to the user that an unsuccessful attempt has been made. This avoids the need to continuously track mobile radio-telephones. The unidirectional link may be a television or radio broadcast network, or a communications satellite. <IMAGE>
Patent GB-2226801-A (GB)
Title: Screw fasteners for lightning strike protection of composite structures in aircraft
Inventor: BALDWIN R E
IPC: B64C1/12
Filed: 1989-11-29
Abstract: A screw fastener assembly for attaching one component 1 of an aircraft structure to another 2, comprising a male threaded member 4 for passing through a hole 10 in a first component of an aircraft and co-operating with a second female threaded member 21 adapted to engage a second component 2 of the aircraft structure, wherein there is provided means 24 for venting hot gaseous spark products generated at the interface between the first and second components of the aircraft structure and the male threaded member in the event of a lightning strike to the aircraft structure in the region of the screw fastener assembly either to the outside of the aircraft structure or to an enclosed ballast volume 23 forming part of the female threaded member. <IMAGE>
Patent GB-2228380-A (GB)
Title: Frequency synthesizer
Inventor: JOHNSON EDGAR ALVIN
IPC: H03L7/22
Filed: 1990-01-11
Abstract: A frequency synthesizer comprises a cascade of subsystems, each comprising a phase lock loop and a VCO (32, 18), each receiving an input signal and each providing another signal whose frequency is to be added to or subtracted from the frequency of its input signal to produce a subsystem output signal. The output signal of each subsystem except the last is connected to be the input signal of the next subsystem, and at least two of the VCOs are selectively turnable to frequencies above and below those of their respective input signals by amounts equal to their respective other signals. Frequency dividers, which would result in noisy final outputs, are not employed. <IMAGE>
Patent GB-2229192-A (GB)
Title: Electrolytic metal recovery unit
Inventor: DVORNIK PETER
IPC: C25C7/06
Filed: 1990-03-01
Abstract: A metal recovery unit e.g. for recovery of silver from photographic solutions comprises a container having a base and walls, and an electrolyte inlet (10) at an upstream end and an electrolyte outlet at a downstream end, said inlet (10) and outlet being set above the base of the container, said container being partitioned by at least one baffle (7a, 7b) defining an upstream chamber (1) and a downstream chamber (2) within the container, said baffle (7a, 7b) having fluid communication means (4) therein to allow fluid communication of an electrolyte between the upstream and downstream chambers (1, 2), said fluid communication means (4) being located at a position below the level of the electrolyte outlet, each chamber having therein at least one anode and one cathode. <IMAGE>
Patent GB-2242023-A (GB)
Title: Improvements in acoustic ranging systems
Inventor: WOODWARD STEVEN J
IPC: G01S7/52
Filed: 1990-03-14
Abstract: In an acoustic pulse-echo ranging system, a transmitter (18) and a receiver (20), are electronically tuned (114,60,70,80) to determine their operating frequency, the electronic tuning being controlled responsive to stored data relating to a particular transducer (4) being utilized to transmit and receive a pulse. A single transmitter (18) and receiver (20) can be utilized to service a number of different transducers (4), being automatically tuned to an appropriate frequency for each transducer as it is used to transmit and receive a pulse. The system can verify the nominal operating frequency of each transducer, and can also adjust the operating frequency used with any particular transducer to optimize its performance. <IMAGE>
Patent GB-2242722-A (GB)
Title: Adjustment means
Inventor: PHIPPS J
IPC: F16B5/02
Filed: 1990-03-30
Abstract: Adjustment means (10) for adjustably connecting two structures comprise a first element (12) having an aperture (20) therethrough and a second element (14) engageable in the aperture (20). The adjustment means (10) further comprise interlocking means (22, 30) located on the interior wall of the aperture (20) and on the portion (28) of the second element (14) engageable therein and adapted such that the position of the second element (14) relative to the first element (12) can be adjusted by appropriate engagement of the interlocking means (22, 30). The arrangement allows the first and second elements (12, 14) to be manufactured relatively cheaply and provides a firm connection between two structures. <IMAGE>
Patent GB-2231131-A (GB)
Title: Apparatus and method for combustion of solid fuel
Inventor: HEANLEY CHRISTOPHER RODGER
IPC: F23L7/00
Filed: 1990-05-04
Abstract: Apparatus for the combustion of solid fuel, e.g. in the form of discrete pieces of rubber, comprises a combustion chamber 1, delivery means for delivering fuel into said chamber, means 12 for controlling the amount and bulk density of fuel delivered to said chamber, means for supplying said chamber with combustion medium for combustion of fuel therein, means for modulating the ratio of said combustion medium to fuel in said chamber, means for providing steam or compressed hot air in said chamber, means for controlling the amount of steam or compressed hot air in said chamber, means for the outlet of combustion products from said chamber, and means for discharging ash from said chamber. <IMAGE>
Patent GB-2247254-A (GB)
Title: Overflow fitting for flushing cistern
Inventor: MCMANUS DAVID
IPC: E03D1/38
Filed: 1990-08-23
Abstract: A flushing cistern 10 has an overflow assembly comprising a pipe 18 and tundish bowl 20 connected to a flush pipe 24 with an air gap between the pipe 18 and the tundish bowl 20 to give an audible and visible warning of overflow condition. The tundish bowl 20 is supported by a bracket 26 which is itself supported by attachment round the cistern overflow pipe 18. By this means the overflow cistern is firmly affixed to the cistern and independent of the spacing of an adjacent back wall. <IMAGE>
Patent GB-2244862-A (GB)
Title: A stacked capacitor for a dram cell
Inventor: BAE DONG-JOO
IPC: H01L21/822
Filed: 1990-08-31
Abstract: The stacked capacitor for use in a DRAM cell has a high capacity and includes a storage electrode 22 comprising a first polysilicon region 19 coupled to the source region 12 of an associated transistor so as to extend in parallel with the surface of the substrate 10 over the source region, a bridge polysilicon region 23 extending in the upward direction of the substrate, and a second polysilicon region 21. A dielectric film 24 and a polysilicon plate electrode 25 are formed over the storage electrode. <IMAGE>
Patent GB-2236110-A (GB)
Title: Detergent composition
Inventor: NEIL THOMAS BRUCE
IPC: C11D1/22
Filed: 1990-09-18
Abstract: A structured detergent composition having a low electrolyte content comprising surfactant, a betaine and/or a derivative of a betaine.
Patent GB-2249684-A (GB)
Title: Optical system for the remote determination of position and orientation
Inventor: MORRISON JOHN MALCOLM
IPC: G01S3/781
Filed: 1990-10-31
Abstract: To determine the position and orientation of a helmet in a cockpit to enable weapons aiming to be determined from the position of the pilot's head, at least two light sources on the pilot's helmet are imaged onto a pair of position sensitive detectors 11 and 12, the first (11) of which is transparent, and which provide x and y electrical signals corresponding to the position in the area of the position sensitive detector of the light spot. The use of sequential detectors enables the determinations of the direction lines of the sources. It is not necessary for the images to be focussed on each detector, the use of one focussing means 13 thereby being possible, Fig. 4. <IMAGE>
Patent GB-2252719-A (GB)
Title: Improvements in washing systems for oil tanks
Inventor: GIBSON VICTOR RUSSELL
IPC: B08B9/093
Filed: 1991-02-13
Abstract: A washing system for oil tanks comprises a washer head (16) for mounting within an oil tank, and a conduit (22) for delivering fluid under pressure to nozzles (26) on the washer head which are movable so as to distribute the fluid emerging under pressure from the nozzles over the internal walls of the tank. A cam and follower device (27, 32) is arranged to sense the continuing operative movement of the nozzles, and to transmit to the exterior of the tank, through a fluid filled conduit (33), pressure pulse signals indicative of said continuing movement, means (38) being provided to monitor the signals and produce an output in response thereto.