baber/WOPTO huggingface dataset:
Patent GB-2227387-A (GB)
Title: Filter circuit arrangement
Inventor: PERRY COLIN LESLIE
IPC: H03H11/04
Filed: 1989-12-20
Abstract: An active-ladder filter circuit arrangement comprises a plurality of resistance-capacitance integrator circuits (1A, 1B, 1C) in cascade between an input (2) and an output (3). Each integrator circuit comprises a respective transistor which is controllable via a control input (10A, 10B, 10C) to vary the effective resistance of a resistance component of the relevant integrator circuit, which component connects inputs (6A, 6B, 6C, 7A, 7B, 7C) of the relevant integrator circuit to the capacitance component thereof. The filter characteristic is thus controllable. In order to reduce intermodulation products produced by out of pass-band signals the arrangement input (2) is connected to the capacitance component of the first integrator circuit via a passive resistor which can have a more linear voltage-current characteristic than a resistance which is variable by controlling a transistor. When the above arrangement is constructed as an integrated circuit, a set of alternative passive resistors of slightly different value connected to alternative inputs may be provided and a selected resistor in conjunction with the control input (10A, 10B, 10C) contributes to an optimum filter characteristic. <IMAGE>
Patent GB-2226463-A (GB)
Title: Control of fluorescent lights
Inventor: YAZDANIAN SIROUS
IPC: H05B41/285
Filed: 1989-12-21
Abstract: A fluorescent lamp 10 is connected across a capacitor 30 of a series-resonant L-C circuit 28, 30 and is operated by a high frequency a.c. supply 40, 42 which during lamp starting has a frequency gradually changing between two frequencies respectively lower and higher than the resonant frequency of the L-C circuit. The supply may ramp down from the higher to the lower frequency, or may ramp up from the lower to higher frequency over a one second period, dwell at the higher frequency for half a second and then fall to a normal operating frequency. Lamp brightness may be varied by adjusting the frequency and/or width of the h.f. energising pulses and may be controlled in response to ambient light. A common h.f. supply may power a plurality of L-C/lamp circuits and may have an overcurrent sensor (160), (Fig 6), which causes a control circuit (140) to turn off output MOSFETS (102), (104) for 5 millisecs. <IMAGE>
Patent GB-2241022-A (GB)
Title: Dispenser for edible food spreads
Inventor: FITZPATRICK COLIN
IPC: B65D83/00
Filed: 1990-02-13
Abstract: A dispenser for soft butter, and similar food spreads, comprises a pedestal 10 forming a piston and a disposable cylinder 12 containing butter. An outlet device 14 is secured on to an open top end of the cylinder and forms an opening 18 through which butter becomes discharged upon pressing the cylinder down against the pedestal 10. The outlet device projects to opposite sides of the opening 18 to form lands 20 and 22 which form a continuous scraping surface extending across the opening. A knife blade can be slid from one land to the other to collect a portion of butter discharged through the opening. <IMAGE>
Patent GB-2245351-A (GB)
Title: Deceleration lighting system for vehicles
Inventor: DONNACHIE ROBERT WILLIAM
IPC: B60Q1/44
Filed: 1990-05-24
Abstract: A deceleration lighting system for a vehicle which comprises a deceleration sensing means such as a pressure transducer in the brake fluid line or an accelerometer (32), a computer (34) receiving a signal quantitatively representative of a detected deceleration and a bar type lighting display (30) controlled by the computer so that a larger amount of the display is illuminated in proportion to a greater deceleration force. <IMAGE>
Patent GB-2235843-A (GB)
Title: Aircraft threat monitoring system
Inventor: HUGHES TIMOTHY JOHN
IPC: H04K3/00
Filed: 1990-08-07
Abstract: An aircraft threat monitoring system has several sensors responsive to a potential threat external to the aircraft, such as a radar warning receiver 2, a radar sensor 3, a missile approach warning receiver 4, a forward-looking infrared detector 5 and an electro-optic sensor 6. Each sensor has a respective inference processor 21 to 61 the outputs of which are supplied to a groundspace map manager 11 and an airspace map manager 12. The map managers 11 and 12 collate the processor outputs to derive a threat output signal which is supplied to a planner 7 programmed with tactical route information. The map managers 11 and 12 also control operation of the sensors 2 to 6 such as by modifying their sensitivity, scan or frequency in accordance with the output from other sensors to provide more information about the detected threat or to reduce the ability of a detected missile to home on the aircraft. <IMAGE>
Patent GB-2242168-A (GB)
Title: Fitting a door to a vehicle body
Inventor: KITAHAMA MICHIHIO
IPC: B23P21/00
Filed: 1991-02-12
Abstract: A hinge bracket f of a vehicle door c is fastened to a vehicle body a while the looseness or play at a hinge portion f1 of the hinge bracket f in a direction in which a door load is applied is taken up.   The apparatus for carrying this out includes a positioning device for positioning the door c by moving a big 15 which holds the door c, a fastening device for fastening a hinge bracket f which is hingedly provided on the door to a vehicle body, and a play or looseness take up device carried by the jig 15. The play or looseness is taken up by lifting the hinge bracket f at an end on the side of the hinge portion f1 by means of an arm 34, and/or by lowering the hinge bracket f at an end opposite to the hinge portion f1 by means of a contact piece 32. The door is held by suction means on the jig 15. Each suction means is supported on a movable frame and is slidable in the forward and backward movement direction of the frame, a locking means on the frame restricting the sliding of the suction means (Figure 5). <IMAGE>
Patent GB-2249000-A (GB)
Title: Electronic private branch exchange having an LCR function
Inventor: YAMAMOTO KEIJI
IPC: H04M3/42
Filed: 1991-06-06
Abstract: In an electronic PABX having an LCR function, a call origination is made through a common carrier of the minimum line cost among a plurality of common carriers on the basis of input dial data. When a particular common carrier number is detected in the input dial data, a call origination is made preferentially through the particular common carrier corresponding to the carrier number. Thus a reduction in the communication cost using an ordinary LCR function is further made. in addition, an access to a desired common carrier is made by a very simple calling operation similar to the ordinary call operation.   <IMAGE>
Patent GB-2259417-A (GB)
Title: Brake warning light for automobiles
Inventor: DALTON JOHN STEVEN
IPC: B60Q1/50
Filed: 1991-06-21
Abstract: A safety/warning light 10 with a removable worded message 15 is placed in the rear window of an automobile. A slot 13 allows differently worded plates 15 to be inserted to give different messages e.g. 'CHILD ON BOARD' or 'KEEP YOUR DISTANCE'. The light is connected to the brake lights and operates when the brakes are applied. <IMAGE>
Patent GB-2257602-A (GB)
Title: Improvements in or relating to telephone call management systems
Inventor: SWEETLAND PAUL
IPC: H04M3/42
Filed: 1991-07-10
Abstract: Telephone apparatus comprising a call management system 1 including a central processor unit (CPU) 1b, a display/monitor 1a and a keyboard 1c, telephone line switch means 2 via which predetermined telephone lines are made available to a dealer board 3, which dealer board serves to facilitate selection by a dealer of one or more of the said predetermined lines, a voice recorder 10 responsive to the use of a handset 9 operatively associated with the dealer board for recording telephone activity involving use of the hand set and an activity port 11 operatively associated with the voice recorder, which activity port serves to provide data indicative of use of the handset for telephone communication purposes, the central processor unit of the call management system being arranged to be responsive to the data provided at the said activity port. <IMAGE>
Patent GB-2248685-A (GB)
Title: High-resolution vision system for part inspection
Inventor: TURCHECK STANLEY
IPC: G01B11/02
Filed: 1991-09-16
Abstract: A camera sensor 16 may include a charge coupled device used to provide high-resolution in both an X and a Y axis. Data from the charge coupled device resulting from a standard part is stored for comparison with data of parts 11 under inspection. The data from the standard and inspected parts may be digitised and compacted to reduce memory requirements and processing time. <IMAGE>
Patent GB-2265746-A (GB)
Title: Tactile display array
Inventor: MONKMAN GARETH JOHN
IPC: G09B21/00
Filed: 1992-05-11
Abstract: A tactile display array comprises a solid substrate 1 containing electrically selectable tactor elements 2 over which an electrically insulating separating mesh 4 soaked in electrorheological fluid 5 is laid. The whole upper surface is covered by an electrically conducting compliant film 8 held at earth potential. The tactile image is created by the connection of a high voltage supply to those tactor elements which correspond to the geometric description of the desired image to be displayed. The image may then be haptically detected by finger pressure applied to the compliant surface. <IMAGE>
Patent GB-2273568-A (GB)
Title: Position transducer
Inventor: MEYDAN TURGUT
IPC: G01D5/20
Filed: 1992-12-18
Abstract: A position transducer comprises a core 10 preferably of a ferromagnetic amorphous alloy, a permanent magnet 20 or electromagnet subjecting the core 10 to an external magnetic field, and a tapered shield 30 movable in the gap between the magnet 20 and core 10 to modify the strength of the field to which the core is subjected depending on the (e.g. rotary) position of a movable element. The core 10 is wound with primary and secondary windings: the current induced in the secondary, by a.c. in the primary, depends on the strength of the magnetic field acting on the core and therefore on the position of the movable element. The shield 30 is of soft magnetic material. Alternatively the movable element may be coupled to the magnet 20 or other field producing device. The core 10 is preferably of tubular form with toroidal windings. <IMAGE>
Patent GB-2265370-A (GB)
Title: Preparation of nitriles
Inventor: DRENT EIT
IPC: C07C253/00
Filed: 1993-03-01
Abstract: A preparation of nitriles in which an ethylenically or acetylenically unsaturated compound is reacted with carbon monoxide, a hydrogen source and hydroxylamine or a hydroxylamine salt in the presence of a catalyst system comprising one or more Group VIII metals.
Patent GB-2277982-A (GB)
Title: A boiler
Inventor: GRANT STEPHEN WILLIAM JOHN
IPC: F24H1/26
Filed: 1993-05-18
Abstract: A gas or oil fired enclosed boiler 1 comprises a base 2, a top 3, a main rear tank, a main front tank 5 and a pair of main side tanks 6, 7 which define at least one enclosure through which flame and hot gases are led from a burner 12 to an exhaust flue 16. A removable cover for cleaning access is provided, e.g. at 26. Four baffle assemblies are provided in the boiler. Adjacent transverse baffle plates 30, 31, 32, 33 are longitudinally spaced-apart to define interconnected transverse passageways. Deflectors 51, 52, 53 are welded to the baffle plates and direct hot gases against the water-carrying surfaces of the boiler. The baffle plate assemblies are removable for cleaning. Adjustable damper means 54a, 54b, are provided for controlling the flow and/or temperature of the flow gases exiting from the boiler. The baffle plates 30 - 33 may be defined by water tanks. The deflectors may be defined by a central water tank extending through the boiler. The boiler may be upwardly or downwardly firing. <IMAGE>
Patent GB-2267661-A (GB)
Title: Heat and moisture exchanging filters
Inventor: LOWE GRAHAM DESMOND
IPC: A61M16/16
Filed: 1993-06-09
Abstract: A pleated filter in a housing comprises hydrophobic (10) and hydrophilic (11) sheets, preferably laminated together, and is connected between a patient and a ventilator in an open breathing system, with the hydrophobic sheet nearest to the patient. The hydrophobic sheet comprises resin-bonded ceramic fibres and has an alcohol bubble point of more than 710 mm of H2O to capture micro-organisms. The hydrophilic sheet comprises cellulose, may be continuous or slotted and captures moisture from exhaled breath, allowing it to be picked up again by inhaled air. <IMAGE>
Patent GB-2280045-A (GB)
Title: Anti-swing automatic control systems for unmanned overhead cranes
Inventor: BAE INTAK
IPC: B66C13/06
Filed: 1993-07-15
Abstract: An anti-swing automatic control system for unmanned overhead cranes is provided which calculates and controls an appropriate velocity profile to eliminate swings of an object which is being moved hung on a wire rope when transporting it using an overhead crane. The anti-swing automatic control system can move an object to a destination with minimum swing by controlling the velocity of the crane utilizing a velocity profile generator and a fuzzy logic controller etc. <IMAGE>
Patent GB-2278231-A (GB)
Title: Magnet arrangements
Inventor: WARD KEVIN DENNIS
IPC: H01J23/087
Filed: 1993-08-03
Abstract: In a magnet arrangement suitable for providing PPM focusing, cylindrical magnets 4 have inclined inner faces 6 and 7 meeting at an edge 8. Pole pieces 9 are contiguous with the inclined faces 6 and 7 to provide a relatively large field within the volume enclosed by the arrangement. Preferably, the magnet is of a type II magnetic material. <IMAGE>
Patent GB-2273329-A (GB)
Title: Pulse ring and bearing assembly
Inventor: BROCKMUELLER UWE
IPC: F16C19/52
Filed: 1993-10-28
Abstract: A rolling element bearing for use with a pulse ring in an ABS system has on an outer surface of a race thereof a peripherally-extending groove having an undulating surface, the groove being adapted to receive a deformable portion of the pulse ring and thereby secure the ring against axial and rotational movement relative to the bearing.
Patent GB-2273090-A (GB)
Title: Lifting device and method
Inventor: SAMPLE WALTER SNAITH
IPC: H02G1/02
Filed: 1993-12-02
Abstract: A device (40) for use in lifting and/or lowering objects up or down a pole (4) comprises a frame (42, 48, 50) for mounting the device on a pole and rope guides (60, 66) supported on the frame. The arrangement of the device is such that a rope can pass over the guides and up and down two opposite sides of the pole, while both of these sides are effectively unobstructed by the frame (48) of the device. A clamp device may be attached to the object to be raised (lowered). The clamp grips the object at spaced-apart points and has a central attachment point or guide around which a rope may be passed. Means are provided by which the lifting operation may be performed at a safe distance from the foot of the pole. The device is used for lifting new crossbows onto power transmission or telephone lines. <IMAGE>
Patent GB-938085-A (GB)
IPC: B01D53/52
Abstract: 938,085. Purifying gases and hydrocarbon mixtures; sulphur. NORTH WESTERN GAS BOARD, and CLAYTON ANILINE CO. Ltd. Nov. 20, 1961 [Nov. 29, 1960], No. 40929/60. Classes 1(2) and 32 A process for absorbing hydrogen sulphide from gases e.g. coal gas or air, and liquid or gaseous hydrocarbon mixtures, comprises washing the gases or liquids with an aqueous alkaline solution containing a metal vanadate, a salt of a metal having at least two valency states, and at least one sequestering or chelating agent. The H 2 S is oxidized and sulphur is liberated, the reduced vanadate being re-oxidized by free oxygen or an oxygen-containing gas, e.g. air. An ortho-, meta-, or pyro-vanadate of ammonia or of an alkali metal may be used, preferably in concentrations of 20 to 1,000 p.p.m., and the sequestering or chelating agent may be a soluble tartrate, e.g. sodium potassium tartrate, or tartaric acid or ethylene diamine tetra acetic acid. Salts of iron, e.g. ferrous sulphate or ferric chloride, or of Cu, Mn, Cr, Ni or Co may be used, preferably in concentrations of 100 to 1,000 p.p.m. The solution may be made alkaline initially by adding ammonia or Na 2 CO 3  and NaHCO 3  to give a pH above 7, preferably 8À5 to 9À5.
Patent GB-2285418-A (GB)
Title: Mechanism for manoeuvring a wheeled vehicle
Inventor: LAI KUO JENN
IPC: B60S9/215
Filed: 1994-01-06
Abstract: The present invention relates to a mechanism for manoeuvring a wheeled vehicle which includes a control unit (1 Fig. 2), four deploying actuators 2, four elevating actuators 3 and four units 4 attached to the elevating actuators 3. The control unit (1) includes a control panel (11) and an electric oil pump (12) connected to a car battery (13) serving as a power supply. The deploying actuators 2, elevating actuators 3 and units 4 are disposed under a chassis of the wheeled vehicle, whereby the control panel (11) is selectively operated to control the movements of the four deploying actuators 2 and elevating actuators 3 so as to lift the wheeled vehicle on one side or all sides and the two-way motors of the units 4 are controlled by the control panel (11) to rotate clockwise or anti-clockwise for driving the driven wheels 42 so as to transversely move the wheeled vehicle left or right into a parking site or so as to rotate the wheeled vehicle. <IMAGE>
Patent GB-940604-A (GB)
Abstract: 940,604. Controlling gas burners. T. FARINELLA. Dec. 27, 1961 [Dec. 28, 1960], No. 46250/61. Heading F4T. A liquid heater gas burner control device comprises a valve operated by the pressure of the liquid to be heated to control the gas supply to a pilot burner, the movement of this valve also serving to control an electrical sparking device for ignition of the pilot burner and an electromagnetic valve for controlling the gas supply to the device. A thermal deformation device under the control of the pilot flame controls a valve for the supply of gas to the main burners. As shown, on operation of a hot-water cock a membrane 1 is subjected to the water pressure and lifts a valve body 7 which is shaped to establish communication between a duct 39 and a duct (not shown) leading to a pilot burner 17 and to operate a switch 38 which closes the circuit of a sparking device 18 and opens an electromagnetic valve 12 to admit gas to the device. The valve body 7 also opens a valve 9 to admit gas from the valve 12 to a chamber 23 whence it passes to a header 25 for the main gas burners when a valve 21 is opened by a bimetallic element 19 which when heated by the pilot flame forces a rod 20 and the valve 21 downwardly. A further bimetallic element 26 is heated by one of the main burners and forces a rod 27 and a valve member 28 downwardly to establish communication between chambers 31 and 34 which are connected respectively to the inlet side of the valve 12 at 32 and to the pilot burner 17 so that the latter receives gas from the main supply directly. The rod 27 also acts on a switch 41 which opens the sparking circuit. Thus, when the water supply is switched off and the valve body 7 closes the valves 9 and 12, the pilot burner remains lit until the element 26 cools and the valve member 28 closes. The electromagnetic valve 12 is provided with a lever 16 which may be used to open the valve in the event of an electrical power failure, the pilot burner being then lit with a match.
Patent GB-2313373-A (GB)
Title: A high temperature stable, low input energy primer/detonator
Inventor: RAMASWAMY COODLY P
IPC: C06B21/00
Filed: 1990-04-04
Abstract: A method for the manufacture of primers/detonators with 90-99.99% reliability and achieving sensitivity of 0.8 inch-oz. to 3.0 inch-oz. , able to withstand temperatures within the range of -40* superscript 0 *C to 200* superscript 0 *C and able to withstand temperature cycling and humidity for 95% RH at 95* superscript 0 *C to -40{C. Mechanical and chemical sensitizers are utilized in lieu of tetracene, the utilization of oxidizers as sensitizers, the utilization of high energy fuels, and a method of co-precipitating the primary explosive and mechanical sensitizer.
Patent GB-2278356-A (GB)
Title: Polypeptide substrates having proteolytic cleavage sites
Inventor: GARMAN ANDREW JOHN
IPC: C07K14/31
Filed: 1994-05-27
Abstract: A method for the preparation of a polypeptide substrate, especially a fluorescence resonance energy transfer (FRET) substrate, having donor and acceptor species on opposite sides of a proteolytic cleavage site and wherein the donor and/or acceptor species are attached via the side chain(s) of amino acid(s) therein, comprises contacting a reactive donor or acceptor species with a polypeptide substrate having the side chain(s) of amino acid(s) therein adapted for reaction with the reactive species and then contacting the substrate so obtained with a corresponding reactive donor or acceptor species. The substrates so prepared may be used in assays to identify modulators of protease activity.
Patent GB-2285459-A (GB)
Title: Looper drive for a chain stitch sewing machine
Inventor: SCHOPF DIETER
IPC: D05B57/02
Filed: 1994-11-30
Abstract: A looper drive for a chain stitch sewing machine has an articulated connection having an intermediate guide rod (23) between a driven arm (25) and a looper shaft (8) for imparting lengthwise motion to the shaft (8). The guide rod (23) bears a ball (20) which pivots in an opening (19) in a receptacle (17) on the shaft (8). The lengthwise motion is derived from a cam (3) on main shaft (2) through a pull rod (5), transverse shaft (28) and arm (25). Rocking motion of the looper shaft derives from a further cam on the main shaft and a yoke (33). Yet another cam on the main shaft rocks a shaft (40) carrying a needle protector (43) which supports the needle (35) against deflection by the workpiece. <IMAGE>
Patent GB-2284672-A (GB)
Title: Magnetically actuated switch assembly
Inventor: ITALIANO BIAGIO GIUSEPPE
IPC: H03K17/97
Filed: 1994-12-07
Abstract: A switch assembly 11 for electrical or electronic use, has a main body 13 formed with a central aperture 15 which receives a button 31. The button supports a permanent magnet 43 and the main body supports a permanent magnet 19, the magnets being arranged with like poles facing each other to provide repulsion resulting in the button being biased outwardly from the main body. An aperture 45 is provided in the main body, offset from the central axis of the button and extending to a position alongside the space between the magnets. Located within the aperture is a semiconductor device in the form of a hall-effect sensor 47, which is soldered to a printed circuit board 25. The hall effect sensor is located at an appropriate depth within the aperture to sense the variation in the magnetic field due to movement of the magnets relative to each other. A circuit may be connected to the hall effect sensor to provide switching function in response to the button being pressed. A coil or a reed switch may be used in place of the hall effect device. <IMAGE>
Patent GB-2285163-A (GB)
Title: Power supply for liquid crystal display
Inventor: ISOZAKI SHINGO
IPC: G09G3/36
Filed: 1994-12-20
Abstract: A signal electrode drive circuit (X driver) is made up of a low-voltage-amplitude operating portion 101 that operates on the supply of a first power voltage group, and a high-voltage-amplitude operating portion 102 that operates on the supply of a second power voltage group. A frame memory that stores display data is provided in the high-voltage-amplitude operating portion, with the configuration being such that the operating power source for the frame memory is supplied from the second power voltage group. The power source of the frame memory could also be supplied through a constant-voltage circuit that regulates these second power voltages, and the supply of the first and second power voltages could be switched in accordance with the state of the second power voltage supply by a power monitoring means that monitors the second power voltage group. The configuration of the present invention is particularly effective for the multiple line selection drive method. <IMAGE>