baber/WOPTO huggingface dataset:
Patent GB-2239871-A (GB)
Title: Reactive triazinyl monoazo dye compositions
Inventor: MIYAMOTO TETSUYA
IPC: C09B62/44
Filed: 1990-11-22
Abstract: Novel reactive dye compositions comprise a dye of formula (I) or salt thereof, plus at least one dye of formula (II), (III) or (IV) or salt thereof   <IMAGE> wherein Z,Z' and Z''' are each -CH-2 or -CH2CH2Z1, -CH2CH2Z2 or -CH2CH2Z3, respectively, in which Z1, Z2 and Z3 are alkali-cleavable groups; Z''' is -CH=CH2; and one of X and Y is sulfo, the other being hydrogen. The above compositions have improved solubility, storage stability, build-up and fastness properties, and give red colorations when dyed or printed on fibrous hydroxyl- or amide group-containing materials, esp. cellulose.
Patent GB-2252106-A (GB)
Title: Method and apparatus for spinning together and balling a combined yarn product
Inventor: FOLKARD HARVEY JOHN
IPC: D02G3/28
Filed: 1991-01-22
Abstract: Two yarns 60, 64 are spun together and the combined yarn product 70 is balled in a continuous process on a single piece of apparatus. The apparatus comprises a hollow spindle 40, means for drawing a first yarn 60 through the spindle 40, and means for supporting on the spindle a supply 66 of a second yarn 64 which is caused to wrap around the first yarn 60 after it has passed through the spindle 40, and the yarn product 70 is then wound onto a former 58 to produce a ball 80 of the combined yarn product 70. The drives of the spindle 40 and former 58 are interconnected as is the cam actuation of a winding guide associated with the former. The yarn passes over a brush 74 on its way to the former. The yarn length is metered to determine when a ball has been wound of the desired length. <IMAGE>
Patent GB-2252129-A (GB)
Title: Internal combustion engines,their exhaust systems and manufacture thereof
Inventor: PALMER ANDREW CHARLES
IPC: F01N1/02
Filed: 1991-01-26
Abstract: A series of substantially identical internal combustion engines is produced. The exhaust system for each engine is selected from a first series each incorporating a catalytic converter 15, and a second series, not including a catalytic converter but having the same back pressure characteristics as each of the first series. Each exhaust system of the second series may have a dummy converter 16, ie constructed using the same components as the catalytic converter in the first series but without a catalyst. Alternatively each exhaust system in the second series may incorporate a resonator 17 with a restrictor 22. <IMAGE>
Patent GB-2241440-A (GB)
Title: An artificial foot with dorsi-flexion restriction device
Inventor: HARRIS GRAHAM JAMES
IPC: A61F2/50
Filed: 1991-02-26
Abstract: An artificial energy-storing foot has a keel (12) having a lower spring portion (12B) connected at its posterior end as a cantilever to an upper mounting portion (12A). These two portions may be formed as single carbon fibre reinforced plastics moulding or individually as part of a two-piece keel with the ankle mounting portion rigid and the spring portion as a simple fibre reinforced strip. The resilience of the foot is adjustable by means of a removable resilient buffer element (27) mounted ahead of the ankle centre as a course adjustment device and, optionally, by means of a transversely extending support bar (28) which can be moved longitudinally behind the ankle centre by rotating an adjusting screw (30). Both the buffer (27) and the support bar (28) are mounted between the ankle mounting portion (12A) of the keel and the lower spring portion (12B). A resilient ankle joint (13) may be secured to the ankle mounting portion (12A), the joint comprising a ball and socket assembly with resilient elements (48, 54) arranged to allow plantar flexion of the joint but substantially to prevent dorsiflexion. <IMAGE>
Patent GB-2254083-A (GB)
Title: Anticoagulants from e.coli saccharide
Inventor: JANN KLAUS
IPC: C08B37/00
Filed: 1991-03-28
Abstract: The present invention relates to anticoagulants prepared from the K5 saccharide of E. coli, which have good activity and which can be mass produced.
Patent GB-2244867-A (GB)
Title: Printed circuit boards
Inventor: OKONOGI HIROTAKA
IPC: H05K3/46
Filed: 1991-04-18
Abstract: Ground connection between an electromagnetic wave shielding layer 6 and a printed circuit 2 formed on a printed circuit board 7 is effected via apertures in a plurality of insulating layers 3a-3c formed between the shielding layer 6 and the printed circuit 2. The apertures in the insulating layers 3a-3c increase in diameter from the printed circuit 2 to the shielding layer 6 so as to improve the connection. <IMAGE>
Patent GB-2245954-A (GB)
Title: Motor vehicle propeller shaft
Inventor: HOOFMAN WERNER
IPC: B29C70/06
Filed: 1991-06-20
Abstract: A drive shaft 1 for use as a motor vehicle propeller shaft has attachment portions (3) containing attachment elements (4) at its ends, the attachment elements being slidable into the tubular shaft element when subject to an axial force greater than a predetermined value, and has energy absorbing characteristics which are matched to those of the vehicle the shaft is intended to fit so that in a collision the shaft provides maximum energy absorption when the absorption by the vehicle structure is at a minimum and a changed level of absorption after a certain amount of collapse of the shaft. <IMAGE>
Patent GB-2259588-A (GB)
Title: Testing data terminal equipment
Inventor: CLARK ALAN
IPC: G06F11/273
Filed: 1991-09-12
Abstract: Data terminal equipment comprises a computer 7 and an integral modem through which signals are outputted and inputted on a communications link 8. The modem is responsive to an input test signal on the link 8 from a management system 9 serving to trigger the terminal to test itself and issue a corresponding test result signal which is outputted on the link to the management system. This enables each data terminal in a network to be tested automatically or by central skilled personnel. <IMAGE>
Patent GB-2263114-A (GB)
Title: Biocidal rubber latex products and methods of making same
Inventor: WINTER RAYMOND WILLIAM
IPC: A01N47/44
Filed: 1991-12-19
Abstract: A method of forming a latex product comprises providing a latex formulation or latex article, providing a solution including a biocide, and contacting the formulation or article and the solution so that the biocide becomes incorporated in the latex formulation or article to provide a latex product with biocidal properties. The biocide is preferably a biguanide. In other aspects, the invention relates to a rubber latex product incorporating a biocide, and to a coagulating solution for a natural or synthetic rubber latex formulation which comprises a biocide. The coagulating solution may comprise a solution of a biguanide and a calcium salt in water and/or an alcohol. The biguanide may be a salt of the monomeric form, e.g. chlorhexidine acetate, or of the polymeric form.
Patent GB-2252625-A (GB)
Title: High light cut-off circuit
Inventor: GRAMER MARK EVERETT
IPC: G01J1/42
Filed: 1992-01-23
Abstract: A high light cut-off circuit, e.g. for night vision apparatus, photo-conductive detector 12 and integrator 16. When the photo detector voltage is below a first threshold, the integrator 16 is inoperative, but when the threshold voltage is exceeded the photodetector voltage is applied to the integrator 16, providing an output voltage proportional to the integral of the input photo-current. Thus, the higher the incoming light level, the quicker the integrator output reaches a predetermined second threshold voltage 18 at which time power to the image intensifier assembly 20 is interrupted 24, e.g. by a FET switch. A voltage doubler 46 may be used to increase battery 22 voltage. An auxiliary output from the image intensifier 20 may be used instead of the separate photodetector 12. <IMAGE>
Patent GB-2264041-A (GB)
Title: Auxillary display rack
Inventor: OZAWA KENZO
IPC: A47B45/00
Filed: 1992-02-12
Abstract: In an auxiliary display rack for use on a display shelf and comprising left and right side panels 2 connected at the front and rear ends by rod-like connecting members 4, 6, the connecting members are made extensible and contractible for enabling the rack width to be adjusted to the width of merchandise to be displayed. When the panels are formed to be higher in the rear than in the front and the rear connecting member is positioned higher than the front connecting member, merchandise can be easily removed from the rack and the merchandise can be prevented from toppling when the rack is pulled forward to bring unsold merchandise at the rear thereof to the front of the shelf. <IMAGE>
Patent GB-2266419-A (GB)
Title: Electrical power supply
Inventor: SCOP SHLOMO
IPC: G01R31/08
Filed: 1992-04-23
Abstract: An electrical power system (10) for routing an electrical current (I) comprises a plurality of fault sensing devices (24) responsive to the system (10), and at least one remote unit (RTU1-RTUn) coupled to the system (10). A satellite global positioning system (12, 14, 16), associated with each of the remote units (RTU1-RTUn), provides a synchronised timing signal. Each of the remote units (RTU1-RTUn) has at least one of the fault sensing devices (24) coupled to it, and the detection of a fault (26, 38, 40, 42) within the system (10), as registered by a fault sensing device (24), causes a remote unit (RTU1) coupled to the device to register a time (T1, T2, T3), obtained form the satellite system (12, 14, 16). The time tagging arrangement enables tracking and location of a fault by comparison of the times logged. <IMAGE>
Patent GB-2260581-A (GB)
Title: De-aeration of water-based hydraulic fluid
Inventor: HERON ROGER ARTINDALE
IPC: F16N39/00
Filed: 1992-05-20
Abstract: In apparatus for de-aerating water-based hydraulic fluid flowing in an hydraulic circuit to service a unit such as a high speed hydrostatic bearing in a grinding tool, the fluid flows without interruption through a de-aerating tank having at the bottom an immersed array of ultrasonic transducers (22). Foam may be removed from the tank by a cased fan adjustable in height. The tank may be incorporated in a reservoir. <IMAGE>
Patent GB-2256331-A (GB)
Title: Analogue-to-digital converters
Inventor: THURSTON ANDREW MARK
IPC: H03M3/02
Filed: 1992-05-21
Abstract: An analogue input is converted to a digital output with a null in the quantisation noise corresponding to the frequency of the intended analogue signal. This is achieved by feeding back the digital output to be combined, 8, in analogue form with the analogue input, the resulting difference signal being fed through a loop filter. The loop filter may include resonant circuits e.g. parallel resonant circuits L3, C3, L4, C4. To reduce the phase change at high and low frequencies from +/-90 DEG , which could cause instability, but to avoid the problems of having a resistor in series with the resonant circuit, which would cause any input or output capacitance to ground of adjacent buffers to degrade the Q factor and the notch shape, the resonant circuit L4, C4 on the one hand and resistive means r on the other hand are connected between ground and the inputs of a pair of differential inputs such as on a buffer 11. Alternatively, a signal derived from the digital output may be used in place of the resistive means. <IMAGE>
Patent GB-2267603-A (GB)
Title: Electronically scannable array of antenna elements.
Inventor: WISBEY PHILIP HENRY
IPC: H01Q3/26
Filed: 1992-05-27
Abstract: An apparatus, for example, a radar apparatus, having a plurality of antenna elements 14a in an electronically scannable array 14, has a calibration antenna 15 located forward of the array in a determinable position, the calibration antenna being coupled by optical means 19 to a transmit and/or receive calibration module 20 located outside the solid angle of transmission and/or reception of the array. The calibration antenna, which consists of a dipole 4, patch loop printed on a dielectric substrate, may be mounted on a radome and used to adjust the gain or phase of the antenna elements in the array 14. The location of the calibration antenna may be predetermined or determined by means of an optical source located with it and 2 or 3 photodetectors. The calibration antenna may operate in either transmit or receive modes. <IMAGE>
Patent GB-2256893-A (GB)
Title: Storage vessel.
Inventor: HALLEY DAVID
IPC: B65G3/02
Filed: 1992-06-04
Abstract: A storage vessel for storing grain or other natural products comprises a gas-impermeable enclosure having a water- vapour-permeable membrane (12) to allow the grain to breath and dry, and to prevent condensation and mould growth. The membrane is impermeable to oxygen gas to allow a reduced oxygen atmosphere (e.g. 3 to 7%) to be established as oxygen is used up by insect pests within the grain. A water-filled wall (4) of glass-fibre reinforced resin may form the bottom of the vessel, seated on a gas-impermeable ground sheet (8). Alternatively, a frusto-conical bag of the material referred to above is supported above an outlet chute. The membrane is preferably a laminate of porous expanded polytetrafluoroethylene layers with an oleophobic layer and an adhesive layer therebetween. <IMAGE>
Patent GB-2259627-A (GB)
Title: Virtual external extension
Inventor: TROUGHT MARK TIMOTHY
IPC: H04Q3/00
Filed: 1992-09-16
Abstract: A telecommunication system has a first ISDN network 1 and a further network 2 connected thereto, each network having a number of users connected to respective exchanges of the networks, the connection including an interface 10 whereby the bearer/user channel on the connection between the first and further networks is independent of the network directory number of the user using the channel and enables a user on the first network to access facilities provided by the further network. <IMAGE>
Patent GB-2263185-A (GB)
Title: Colour lcd system
Inventor: LEE JONGCHEON
IPC: H04N9/31
Filed: 1992-11-23
Abstract: A colour LCD system uses a large reflecting liquid crystal panel (11) as a screen. The system includes unicolour light sources of the colours red, green and blue, disposed remote from the screen; three light shutters (14R) (14G) (14B) for transmitting the red, green, and blue light beams successively and periodically; and three diffusing lenses (12R) (12G) (12B) for diffusing the respective beams on to the same area of the screen. A colour drive signal corresponding to the light beam from the image controlling circuit (21) is applied to the driver (20) to drive the LC panel (11). As a result, the light beams of the colours red, green and blue are successively reflected from the reflection type LC panel according to the colour drive signal. The frequency of successive reflections is such that a person observing the screen recognizes a composite colour screen. White light sources and filters may be employed as unicolour light sources.   <IMAGE>
Patent GB-2270219-A (GB)
Title: Power amplifier saturation detection and correction method and apparatus
Inventor: BLACK GREGORY R
IPC: H03G3/30
Filed: 1992-05-08
Abstract: A power amplifier controller for detecting saturation of the power amplifier (203) and correcting the automatic output control voltage (231) to avoid any further saturation. The controller detects the power of the RF output signal (211), generates a signal (229) correlated to the detected power, compares changes in that signal (229) to changes in the voltage of the AOC signal (231) in a comparator (217). The comparator (217) generates a signal (233) correlated to saturation of the power amplifier (203) for a DSP (223). The DSP checks the status of this signal (233). Upon detecting saturation, an algorithm contained within the DSP methodically reduces the voltage of the AOC signal (231) until there is a change in the power of the RF output signal (211). <IMAGE>
Patent GB-2264079-A (GB)
Title: Coated components of the intermetallic phase titanium aluminide
Inventor: TANK EGGERT
IPC: B23K35/30
Filed: 1993-02-09
Abstract: Coated components, able to withstand high stresses, composed of the intermetallic phase titanium aluminide, in particular for piston engines, gas turbines and exhaust gas turbochargers, are coated, at least on the parts of their surface which are at risk of hot corrosion and/or wear, with a sheet of a solderable nickel-based alloy soldered on under vacuum, a coating thickness of 0.1 to 0.4 mm having proved to be adequate. The nickel-based alloys, of which the soldered-on sheet is composed, have a melting point of below 1180 DEG C and preferably also comprise chromium, boron, silicon, phosphorous and carbon and possibly iron. They may also include hard particles eg tungsten carbide.
Patent GB-2276356-A (GB)
Title: Wheel trim securing system
Inventor: SINCLAIR ALISTAIR
IPC: B60B7/14
Filed: 1993-02-25
Abstract: A strip of metal or other suitable material is secured to a wheel by means of two spring loaded retaining pins which are inserted through two holes made in the wheel. A threaded screw protrudes from the centre of the strip to be coaxial with the wheel hub. To secure the wheel trim to the wheel a nut is inserted through a hole made in the centre of the wheel trim and engaged with the threaded screw. <IMAGE>
Patent GB-2276293-A (GB)
Title: Transmitter/receiver isolation circuit
Inventor: LICHTERFELD STEFAN
IPC: H04B1/56
Filed: 1993-03-19
Abstract: In order to isolate receiver circuitry (20) in a radio communications device from a signal (14) transmitted by the same device, the pass band of a variable pass band filter (24) defining the reception frequency is shifted away from the transmission frequency during transmission. <IMAGE>
Patent GB-2265596-A (GB)
Title: Valve bag handling apparatus
Inventor: MITTELBACH HELMUT
IPC: B65B43/26
Filed: 1993-03-26
Abstract: Apparatus for singling of stacked bags (18) with valve ends and for preparing the bags for filling comprises a vertically movable suction strip (14) for entraining and transporting each uppermost bag of the stack to a positioning device comprising two positioning members (21, 22) between which the bag hangs freely with its valve base resting on the upper side of the members (21, 22). The valve base can be pressed flat through lowering of the suction strip (14), the members (21, 22) being pivotally mounted (20) and equipped with extendible clamping strips (35, 36) in order to clamp the bag while the valve is opened. Subsequently, plates (29, 30) embrace the valve base and keep the valve open as the bag is conveyed to a filling device. <IMAGE>
Patent GB-2274889-A (GB)
Title: An improved connector for pipe coupling
Inventor: WANG SHIOW DUAN
IPC: F16L19/08
Filed: 1993-03-31
Abstract: An improved pipe coupling connector is for connecting the two terminals of two adjacent pipes A, B placed along the same axis. The configuration of the connector composes of at least an external connecting device 10, a joining ring 20, a fix ring 30 which can be accommodated inside the external connecting device 10, and a deformable device 41, 42, 43. The joining ring 20 includes a first end which can be displaced along the axis space inside the external connecting device 10 and forces the fix ring 30 to bite into the pipe A. The pipe coupling eases the problems of difficult connecting, easy sliding and detaching. <IMAGE>
Patent GB-2276858-A (GB)
Title: A badge
Inventor: HORTON PETER ELDON
IPC: A44C3/00
Filed: 1993-04-06
Abstract: A two-part display badge comprises a circular front part (10) and a circular rear part (12) each formed of a plastics material and having a respective hub formation (18, 26) resiliently interengaged with one another. Display material comprising a printed paper overlaid by a transparent plastics film is secured to the front face (14) of the front part (10) by a pressing operation to crimp the periphery of the material around a rearwardly extending annular rim part (16). The front part (10) includes a rearwardly extending lip (18) having a frusto-conical inner wall (20) and the rear part (12) includes a boss (26) having a frusto-conical outer wall (30). When the boss (26) is sprung over the lip (18) the two parts are retained against axial removal from one another whilst permitting relative rotation therebetween. <IMAGE>
Patent GB-2278257-A (GB)
Title: Receiving equipment for digital transmissions
Inventor: WRIGHT DEREK THOMAS
IPC: H04J11/00
Filed: 1993-05-05
Abstract: A receiver for an orthogonal frequency division multiplexed (OFDM) signal includes means (2, 4) for receiving a Fourier Transform (FT) representation of the signal. An inverse Fourier Transform converter (14) changes this representation to the frequency domain. The magnitude (7) and phase (d) of the frequency domain components are derived. A phase error analyser (20) determines any phase errors which are then corrected in a phase error compensator (22). <IMAGE>
Patent GB-2274751-A (GB)
Title: Optically amplified transmision systems
Inventor: TAYLOR MICHAEL GEORGE
IPC: H04B10/532
Filed: 1994-01-18
Abstract: An optically amplified transmission system includes a concatenation of optical amplifiers 13 in the transmission path 12 between an optical transmitter 10 and a non-coherent receiver 11. In order to prevent amplification of spontaneous emissions from one amplifier in subsequent amplifiers, the transmitter 10 includes, in addition to an amplitude modulator 10b for impressing data modulation, a polarisation state modulator 10c which sweeps the polarisation of the transmitted beam over a 90 DEG  range at a rate (eg 100 KHz) which is rapid compared to the population inversion time in the optical amplifiers. Consequently the signal-to-noise ratio at the detector is improved. <IMAGE>
Patent GB-2278525-A (GB)
Title: Analog video interface for a digital video display
Inventor: KURIKKO JARMO
IPC: G06F3/147
Filed: 1993-01-29
Abstract: The invention relates to an analog video interface for a digital video display, comprising an analog video input (31) for receiving at least one analog video signal with composite or separate horizontal and vertical deflection signals; digitizing means (36) for digitizing said at least one analog video signal; means (41) for generating a basic clock signal having a frequency at least n times a desired video frequency, where n >/= 1; means (41, 43) for generating control signals for the digital display and a sampling clock signal for the digitizing means in synchronization with the basic clock signal. According to the invention, said display further comprises means (32) for determining the actual video frequency of the analog video signal on the basis of said received signals; said means for generating the basic clock signal comprising a programmable frequency synthesizer means responsive to said determining means for synthesizing the basic clock of a frequency at least n times said determined actual video frequency, where n >/= 1. <IMAGE>
Patent GB-2281626-A (GB)
Title: Solid-state pulse generator
Inventor: GERHOLD RICHARD R
IPC: G01P3/481
Filed: 1994-08-19
Abstract: A solid-state pulse generator to provide output pulses from a gas volume meter in response to rotation of a magnet in the meter comprises a sensor (34) which detects a change in magnetic field with a rotation of the magnet and generates an electrical output pulse (36). A MOSFET switch (44) is coupled to the sensor for forming a closed circuit between output terminals (46, 48) when a pulse is generated by the sensor, thereby enabling a data collection circuit (58) coupled to the output terminals. The sensor described is of Wiegand wire type and the circuit requires no power other than that provided by the sensor. <IMAGE>
Patent GB-2282372-A (GB)
Title: Synthetic abrasive stones and method for making same
Inventor: OAT HENRY C
IPC: D06C29/00
Filed: 1993-05-12
Abstract: Synthetic abrasive stones and method for making same. A mixture of glass and 10.5 - 28% by weight foaming agent is provided. The mixture is heated to a temperature of from 765 to 960  DEG C, and is then cooled to room temperature.