baber/WOPTO huggingface dataset:
Patent GB-2239770-A (GB)
Title: Modulation device with input signal modification for correction of amplifier nonlinearities
Inventor: ISOTA YOJI
IPC: H04L27/36
Filed: 1990-12-24
Abstract: A QPSK modulation system incorporates a device which modifies an input signal series to compensate the nonlinear characteristics of an amplifier located at a later stage, and provides a carrier wave modulated by the modified signal series to the amplifier. A first arithmetic circuit 100 obtains an amplitude Ai and a phase  theta i of an input signal by calculation. A ROM 110 is set with correction data corresponding to the calculated amplitude so as to compensate the nonlinearity of the amplifier. A modification value generating circuit 85 and a RAM 111 output an amount of compensation  DELTA Ai so as to further modify the correction data according to part of an output signal from the amplifier to compensate amplifier characteristic changes e.g. due to temperature variations. A second arithmetic circuit 101 provides a signal series produced from the modified amplitude Ap and phase  theta p to a quadrature modulator 20. <IMAGE>
Patent GB-2252749-A (GB)
Title: Fraud detection in postage meter having unsecured print wheels
Inventor: SALAZAR EDILBERTO I
IPC: G07B17/00
Filed: 1991-02-15
Abstract: A postage motor is disclosed which determines whether postage was printed while power to the meter was off, and if so accounts for such postage printing. The postage meter also determines whether such printing resulted from tapering, and if so records each instance of such tampering. When the number of instances exceeds a predetermined number, the meter prevents further normal operation thereof. The postage meter determines print cycles of the postage meter occurring when power to the meter is switched off and whether the print devices were moved to a different postage value setting when the meter was off, and if so, the new setting of the print devices. From that, the postage meter determines whether postage was printed while power to the meter was switched off, and if so, accounts for the postage printed.
Patent GB-2253442-A (GB)
Title: Multi-stage seal for an axial flow turbine
Inventor: BELCHER BRYAN LESLIE
IPC: F01D11/02
Filed: 1991-03-02
Abstract: A labyrinth seal 60 positioned between a turbine rotor 26 and inner platforms 44 of stator vanes 46 controls the leakage flow B of fluid from a chamber 48 to the flowpath through the turbine assembly. The seal 60 is divided into two parts 68, 70 by a second chamber 66 located at a predetermined position in the seal such that a predetermined pressure, sufficient to ensure a supply of cooling fluid to a stage of turbine rotor blades 30. The second chamber 66 is interconnected to the turbine blades 30 by passages 72, a chamber 74 and passages 76. By removing fluid from chamber 66, the flow of fluid from the second chamber 66, through the second part 70 of the labyrinth seal 60, to the flowpath through the turbine is reduced. In order to ensure sufficient leakage flow through the seal part 70 fluid may be supplied from chamber 48 via passages 78. Alternative seal configurations are disclosed (figures 4 and 5). <IMAGE>
Patent GB-2242130-A (GB)
Title: Cleaning and sanitising tablets manufactured by direct compression
Inventor: EDMONDSON PAUL STEPHEN
IPC: A01N59/00
Filed: 1991-03-19
Abstract: A cleaning and sanitising composition in tablet form comprises a disinfecting or sanitising agent (such as a dichloroisocyanurate), a surfactant (such as sodium lauryl sulphate, polyethylene glycol, sodium dodecyl benzene sulphonate or a natural source material derived from defatted soya beans) and a base material. The base may be non- effervescent or effervescent base. An effervescent base comprises an hydrous sodium sulphate, sodium bicarbonate and an acid source such as a combination of fumaric acid and maleic add. The additives have cohesive and lubricant properties which enable the tablets to be manufactured by direct compression methods, without any pretreatment of any of the tablet components.
Patent GB-2245188-A (GB)
Title: Removal of contaminants from exhaust gases from a frying vessel
Inventor: BOTTOMS IVAN PERCY
IPC: F24C15/20
Filed: 1991-05-07
Abstract: A method and apparatus are described for condensing noxious fatty acid components from exhaust fumes emanating from food friers prior to venting the fumes to the atmosphere. The temperature at which condensation occurs is sufficiently high (typically about 50 DEG C) to ensure deposition of the fatty-acids in the liquid state. <IMAGE>
Patent GB-2256258-A (GB)
Title: Split seat gate valve
Inventor: OWENS BRIAN
IPC: F16K3/02
Filed: 1991-06-01
Abstract: A gate valve assembly comprises two resilient valve seats 24, each having a body 48 with a cylindrical through-passage 44 and a generally cylindrical outer surface which engages within the through passage of a housing member 26. Body 48 has a planar face 46 defined around and perpendicular to the passage 44 and a seating surface 66 which extends radially outwardly from the face 46 and is defined by a seat portion 64 of axial thickness which increases in the radially outward direction. Seats 24 are arranged within the valve housing such that their planar faces 46 are in contact with one another and the seat portions are compressed against each other. A packing chamber formed by recesses 86 in the housing members 26 is filled with a packing material compressed by a packing compressor 32 to form a tight seal around an imperforate gate 22. The leading edge of the gate is bevelled and has radiussed corners, the radius thereof being greater than that of the passages 44. Chamfered portions 52 of the faces 46 facilitate entry of the gate between the seats 24. Seat portions 64 are open to the exterior of the valve so that particles trapped there-between may be expelled. <IMAGE>
Patent GB-2249008-A (GB)
Title: "Tillage discs"
Inventor: TOPHAM PETER DOUGLAS TEMPLE
IPC: A01B5/14
Filed: 1991-07-15
Abstract: A tillage element for use in a plough, or harrow is described which comprises a disc having a substantially planar portion 21 and an inclined flange portion 22 extending from the periphery of said central portion, an abrupt transition being provided from the central portion to the flange portion. The tillage element provides better penetration, inversion of soil and improved ploughing as compared with a conventional disc plough having concavely curved rotary disc. The invention also relates to tilling apparatus using a plurality of such tillage elements and description is given as to how the tillage elements can be used in such apparatus in combination with a leg provided with a point with the tillage element being pivotable readily between positions, permitting both left- and right-hand ploughing alternatively to be carried out. <IMAGE>
Patent GB-2258190-A (GB)
Title: Unfoldable information booklet
Inventor: JOHNSON IAN
IPC: B42D1/00
Filed: 1991-08-02
Abstract: An unfoldable information booklet (10) comprises a front portion (11) and a back portion (12) both of durable material, joined together along a fold line (13). An information pack (14) is secured to the inner face of the back portion. The information pack is derived from a single sheet (15), which is preformed with fold lines (18, 19) which permit the pack to be unfolded to a display position, displaying the information thereon, and to be refolded to a storage position within the booklet. The folded booklet may be of credit card size. <IMAGE>
Patent GB-2247453-A (GB)
Title: Spherosilicate cements
Inventor: LERAT ANDRE
IPC: C04B12/00
Filed: 1991-08-30
Abstract: Method for preparing a powdered cold setting spherosilicate-type cement which develops, after 4 hours at 20  DEG C, a compressive strength of at least 15 MPa with a water/binder ratio of 0.20-0.27, wherein the following three reactive elements are used: a) an alumino-silicate oxide (2SiO2,Al2O3) having the Al cation in (IV-V) co-ordination as determined by the MASS-NMR Nuclear Magnetic Resonance spectrum analysis for <27>Al; b) an alkaline sodium and/or potassium disilicate, (Na2,K2)(H3SiO4); c) calcium silicate characterized in that the mol ratios between the three reactive elements are the same or between (Na2,K2)(H3SiO4)2/(2SiO2,Al2O3) = 0,40 and 0,60, Ca<++>/(2SiO2,Al2O3) = 0.60 and 0.40 so that (Na2,K2)(H3SiO4)2 + Ca <++>/(SiO2,Al2O3) = 1,0 wherein Ca<++> designates the calcium belonging to a slightly basic calcium silicate with an Ca/Si atomic ratio of less than 1.
Patent GB-2260635-A (GB)
Title: Battery and vehicle protection unit
Inventor: MALMBERG GORAN
IPC: B60R25/04
Filed: 1991-10-16
Abstract: The unit is for attachment to a vehicle battery and comprises first detection means 7 for detecting an unacceptable drop in the voltage of the battery, second detection means 8 for detecting that the vehicle has been involved in a collision, switch means 4 for isolating the battery completely or for isolating the battery from the starter motor of the vehicle, and override means 5 for overriding the switch means. The arrangement is such that the battery is isolated completely in the event that either the first detection means detects that the battery voltage has dropped to an unacceptable level, so as to protect the battery. or that the second detection means detects that the vehicle has been involved in a collision, so as to reduce the risk of fire or explosion, and that the battery can be isolated from the starter motor of the vehicle in the absence of operation of the override means, so as to prevent theft of the vehicle. <IMAGE>
Patent GB-2265597-A (GB)
Title: Can with two chambers and one ring-pull
Inventor: HOLYOAKE VALERIE
IPC: B65D25/04
Filed: 1992-03-04
Abstract: A can comprises two separate chambers, two openings 2 and a ring-pull 3 which can spin to enable it to release either opening. The can may contain beverages of different flavours and be made of aluminium. <IMAGE>
Patent GB-2254342-A (GB)
Title: Friction false-twisting unit with a drive motor
Inventor: RAEDER WOLFGANG
IPC: D02G1/04
Filed: 1992-03-27
Abstract: A friction false-twisting unit (1) is driven by an externally arranged motor (5) via a toothed belt (8) and is mounted on a support (3) which is detachable from the base plate (6) on which the motor (5) is mounted. The belt (8) can be made slack by displacing the support (3) and it is then possible to lift the unit (1) out of the machine, without further parts of the unit, viz. the motor (5) monitors and a cutting device (13, 14, 15), (1) having to be removed.   <IMAGE>
Patent GB-2257143-A (GB)
Title: Process for preparing powder coating composition
Inventor: ONO KAZUYA
IPC: C08L63/00
Filed: 1992-04-28
Abstract: A process for the preparation of a powder coating composition, comprises   (a) providing a crystalline material consisting of two or more crystalline substances each of which has a melting point of at least 90 DEG C and consisting of at least one crystalline epoxy resin and at least one crystalline curing agent; (b) providing a non-crystalline material consisting of one or more non-crystalline substances each of which has a softening point of at least 50 DEG C and one of which has a glass transition point Tg which is lower than those of the other non-crystalline substances and which is lower than said melting point Mp, said non-crystalline substances being selected from non-crystalline epoxy resins, non-crystalline curing agents and mixtures thereof; (c) blending said crystalline and non-crystalline materials to obtain a mixture having a content of said crystalline material of 55-90% by weight and a content of said crystalline curing agent of 5-45% by weight based on the total weight of said crystalline and non-crystalline materials; (d) pressing said mixture at a temperature which is higher than said glass transition point Tg but lower than said melting point Mp and which is lower than any softening point of said non-crystalline substances so that said crystalline and non-crystalline substances are bonded with each other with said non-crystalline substance having the glass transition point Tg serving as a binder; (e) then cooling the mixture obtained in step (d) to a temperature lower than said glass transition point Tg; and (f) then pulverizing the cooled mixture.
Patent GB-2273147-A (GB)
Title: Domestic water heaters
Inventor: NICHOLS DAVID MICHAEL
IPC: F24H1/20
Filed: 1992-12-03
Abstract: A domestic water heater in which, within an outer tank in which water is heated to a hot water temperature of about 45 degrees C under thermostatic control, is mounted an inner tank (16) receiving water from the main tank through apertures (38), whereby, by means of heating element (32) also used to heat the water in the main tank, a limited supply of water can at will quickly be heated to a higher temperature of about 75 degrees C under control of a separate thermostat (28). A control valve assembly 16 connected to the outlets of the two tanks may be adapted to control which thermostat is operative. <IMAGE>
Patent GB-2270175-A (GB)
Title: Control system for motors and inductive loads
Inventor: AUSTIN CHARLES C
IPC: H02P27/08
Filed: 1993-01-12
Abstract: A system for controlling current through a motor winding automatically switches between pulse width modulation mode and a linear mode, depending on the current demands. A time base circuit T2 provides periodic pulses that set a flip-flop N1, N2 allowing current to flow through the motor windings LMA, LMB. The current through the windings increases over time. If the current through the windings exceeds a reference value set by Vin, the flip-flop is reset and the current is shut off until the next pulse from the time-base circuit. After the power supply current has been shut off, current continues to flow through the windings through flyback diodes, decreasing over time. The circuit automatically chooses linear or PWM mode, improving efficiency and reducing noise. <IMAGE>
Patent GB-2264278-A (GB)
Title: Packaging compressible articles
Inventor: WIDLUND URBAN
IPC: B65D75/56
Filed: 1993-02-11
Abstract: A stack 1 of articles 2 is packaged by compressing it between a pair of sheets 3, 4 of non-elastic material and securing together folded-over edges of the sheets. A tubular wrapper holding the articles in their compressed state is thus formed. The ends of the tube may also be closed by folded over ends of the sheets. More than one stack may be accommodated side-by-side with the sheets having tear lines to enable the package to be separated into individually wrapped stacks. The sheets 3, 4 may be joined by fastening means such as a glue bead 5 or an overlapping third sheet (17, Figure 5). The articles 2 may be absorbent disposable articles such as diapers. <IMAGE>
Patent GB-2265447-A (GB)
Title: Tumble dryer control
Inventor: TANAKA MIHO
IPC: D06F58/38
Filed: 1993-03-26
Abstract: A tumble dryer has degree-of-dryness detecting electrodes 60 which detect the degree of dryness of clothes in a drying drum 14 and a thermistor 52 which detects the temperature of the air exhausted from the drying chamber. Two heaters are turned on until the degree of dryness reaches 65%. After that, the temperature is controlled in a range of 40 to 53 DEG C until the degree of dryness reaches 90%. After that, one heater is actuated intermittently so that the temperature of the air which is drawn into the drying chamber decreases. <IMAGE>
Patent GB-2279011-A (GB)
Title: Method and apparatus for measuring performance of a road vehicle driver
Inventor: WARREN CLIVE PARKINSON
IPC: G09B19/16
Filed: 1993-06-16
Abstract: The accuracy with which the driver maintains distance (X) either laterally of the vehicle or forwardly of the vehicle from a road datum point (1) such as a kerb, roadside barrier or lane or centre marking or a vehicle being followed is monitored and analysed to provide a measure of driver performance. A reference line (2) is provided on a vehicle windscreen (3) in line with a front or front corner of the vehicle bonnet (9) and the position of this reference line is filmed through the windscreen with respect to the position of the road datum point with respect to time. Analysis of the film shows a deviation in the driver's ability to maintain relatively constant distance from the road datum point which is a measure of performance. The video camera used may be mounted on the passenger seat or, in the case of a motorcycle or bicycle, on the rider or a vehicle outrigger.   <IMAGE>
Patent GB-2280908-A (GB)
Title: Process for clarifying a beverage brew
Inventor: WARD IAN L
IPC: C12C7/26
Filed: 1993-08-11
Abstract: The process comprises adding to the brew wort a mixture of a linear sulphated polysaccharide and silica sol, preferably at a wort temperature of 60 - 100 DEG C. The polysaccharide may be carrageenan, particularly Kappa-carrageenan.
Patent GB-2281702-A (GB)
Title: Driving range terrain simulator.
Inventor: CHOY CHOONG TOW PATRICK
IPC: A63B69/36
Filed: 1993-09-09
Abstract: The driving range terrain simulator 1 comprises a base 2 and a platform 3 pivotably and rotatably mounted on the base. The platform provides a surface on which a golf ball may be positioned in order for a golfer to practice teeing off balls under different conditions. The platform is tilted by the use of an elongate member 6 fixedly and rotatably attached at one end to the platform and variably positionable on the base. The rotation is achieved by a pivot base 4 being stationary on the ground and the remainder of the base 2 rotating around that pivot base using a number of castors. The elongate member may be replaced by mechanical jacks. <IMAGE>
Patent GB-2272132-A (GB)
Title: Telephone hand set support
Inventor: GARBER LINDA
IPC: H04M1/05
Filed: 1993-10-27
Abstract: The handset support has a base 1 for gripping the user's shoulder S and a cradle 2 for holding a handset H with its mouthpiece M adjacent the user's mouth and its earpiece E adjacent the users ear. The base member has front and rear limbs 3, 4 arranged in invert U form to grip the front and rear of the shoulder. The limbs are plastics material mouldings with end pieces 5, 6 extended to spread the force with which they grip the shoulder. The limbs 3, 4 are pivotally connect by a pin 7, about which a spring 8 acts, urging the limbs together. A stem 11 connects the cradle 2 to one 3 of the limbs. A ball and socket joint 12 is provided between the stem and the cradle, to allow adjustment of the disposition of the cradle with respect to the limb. The joint is tight enough to prevent slippage in use. The cradle is L-shaped in cross-section with a foot member 13 carrying the joint 12 and an upstand 14. The latter is provided with one part 15 of a hook and loop fastening tape. The other part is fixed to the handset, for holding it at a position convenient for the user. <IMAGE>
Patent GB-2283239-A (GB)
Title: Human H1 histamine receptor
Inventor: BOLLEN ALEX
IPC: C07K14/72
Filed: 1993-10-29
Abstract: There is disclosed the isolation of the human H1 histamine receptor protein, the gene which encodes this protein and nucleic acid probes therefor. Vectors are detailed which are adapted for the expression of this receptor on the surface of CHO cells. There are disclosed methods for determining ligand binding, detecting the presence of human H1 histamine receptor on the surface of a cell, drug screening and detecting the presence of mRNA coding for the protein in a cell.
Patent GB-2272523-A (GB)
Title: X-Y table apparatus
Inventor: TENG HONGCHUN
IPC: G12B5/00
Filed: 1993-04-01
Abstract: An X-Y table apparatus provided with a base (12), a member (14) capable of being moved in an X-direction with respect to the base, a member (18) capable of being moved in a Y-direction with respect to the X-direction-movable member and supporting an object placed thereon, and a means (20) for detecting an amount of movement of the object support member with respect to the base, the movement amount detecting means including a main scale (24) which is provided at the central portion of a lower surface of the object support member so that the main scale can be operated in accordance with the movement of the object support member, and which has a matrix type island-like first lattice, and an index scale (26) which is provided on the base so that it can be moved relatively and two dimensionally with respect to and extends in parallel with the main scale, and which has a second grid-ironed lattice (80) and a third grid-ironed lattice (82). This apparatus has a simple construction, and, moreover, it is capable of detecting the displacement of an object in the X- and Y-directions with a high accuracy. A block (100) attached unitarily to the object support member (18) is provided with a mounting hole (101). A free end portion (102) of a detecting shaft (22) of an X-Y encoder is inserted into this mounting hole and three-line-supported on three parallel pins (103a - 103c). The relative position of angle of rotation of a table with respect to the X-Y encoder are finely regulated by turning the detecting shaft by a regulating lever (105) directly under the object support member. <IMAGE>
Patent GB-936791-A (GB)
IPC: C07F9/32
Abstract: 936,791. Insecticidal compositions containing organo-phosphorus compounds. FARBENFABRIKEN BAYER A.G. May 18, 1962 [May 19, 1961], No. 19353/62. Class 81 (1). [Also in Group IV (b)] Insecticidal compositions comprise a phosphorus-containing ester of formula where R 1  and R 2  are C 1-4 -alkyl, R 3  and R 4  are saturated or unsaturated, unsubstituted or substituted aliphatic, cycloaliphatic, araliphatic or aromatic radicals and R 4  may also be unsubstituted alkoxy or cycloalkoxy or another and X is oxygen or sulphur, together with an inert carrier. Methyl-, chlorine- and nitrosubstituted phenyl radicals are specified substituted R 3  and R 4  radicals. The active ingredients may be admixed with known insecticides and/or fertilizers and may be formulated in solid or liquid form, e.g. an emulsion.
Patent GB-2287310-A (GB)
Title: Gas turbine engine combustor heatshield
Inventor: PEARCE DONALD EDWARD
IPC: F23R3/10
Filed: 1994-03-01
Abstract: A gas turbine engine annular combustor has a bulkhead at its upstream end which is protected by an annular array of heatshield segments (36) Fig 1 (not shown). The segments are spaced apart from the bulkhead by means of a plurality of flanges (40). Cooling air apertures provided in the bulkhead direct cooling air into the space between the heatshield and the bulkhead. A portion of the cooling air is directed on to the downstream face of heatshield by means of a plurality of radially extending slots (46) disposed around a fuel nozzle aperture (38) in the centre of each heatshield segment. The slots provide for unrestrained thermal expansion of the heatshield region immediately surrounding the fuel nozzle aperture, thereby to prevent excessive thermal hoop stresses developing in the heatshield during engine operation. The slots may be angled to impart a swirl component so cooling air exits as a film over the downstream surface of the stubs (54). The radial extremity (60) of each slot also may be angled to lay cooling air over the heatshield segment between the slots and cooling holes (52). The cooling holes also may be angled to induce swirl. <IMAGE>
Patent GB-2289323-A (GB)
Title: Instantaneous electric water heater
Inventor: MATTOCKS ANDREW IAN
IPC: F24H1/10
Filed: 1994-04-09
Abstract: An instantaneous electric water heater has an inlet 3 for connection to a supply of cold water, an outlet 4 for heated water and, between the inlet 3 and outlet 4, a pump 5, an on/off valve 6, a flow regulator 7 and a heat exchanger 8. The on/off valve 6 and flow regulator 7 are operable independently with the pump 5 being operable on opening the valve 6 to boost the water pressure and the heat exchanger 8 being operable on opening the valve 6 when the water pressure reaches a pre-determined value. The flow regulator 7 (Fig.7, not shown) comprises a cylinder sliding through an O-ring, the cylinder having axially extending slots, of different length, in its outer surface. Pressure increase can expand the O-ring. <IMAGE>