baber/WOPTO huggingface dataset:
Patent GB-2226418-A (GB)
Title: Testing alarm circuits
Inventor: CORKAN JOHN
IPC: G08B29/14
Filed: 1989-11-24
Abstract: A monitoring means comprises a pulse generator (7) which sends pulses through a sensor (1) and a wiring loop (2) of an alarm system. A pulse detector (9) senses any interruption in the regular flow of pulses if a fault exists and then activates a warning unit (12). A plurality of detectors (9), each reacting to an interruption of a different length of time, may be selectively engaged (8) to diagnose the fault. <IMAGE>
Patent GB-2238646-A (GB)
Title: Telephone answering machine
Inventor: MING LIN
IPC: G11B15/44
Filed: 1989-12-01
Abstract: A telephone answering machine is disclosed which is inexpensive to manufacture and minimises space consumption. The machine includes a planet idler gear 10 engagable with a trigger arm assembly 19 to 23 to swivel during rotation against the stud gear 4 of a pulley. By means of the surface structure 20, 21 of the trigger arm assembly, which serves as a cam, a drive arm assembly is controlled to cause a push rod 26 to engage a slidable plate enabling a magnetic head to slide toward or away from a cassette tape. <IMAGE>
Patent GB-2242993-A (GB)
Title: Imaging process
Inventor: SAMBROOK-SMITH COLIN PETER
IPC: G03C5/56
Filed: 1990-02-09
Abstract: A process for imaging a film containing a reversible organic photochromic compound comprises exposing the film to UV light in one or more selected areas followed by treating it with a chemical reagent which reacts irreversibly with only the relatively colourless form of the photochromic compound. An alternative process comprises exposing the film to UV light and the chemical reagent followed by exposing it to high-frequency light in one or more selected areas to cause irreversible reaction. Preferably the photochromic compound contains a cyclic carboxylic acid anhydride ring and the reagent is ammonia or an amine. The imaged films are useful as security markings.
Patent GB-2246687-A (GB)
Title: Receivers for data transmission systems
Inventor: ROGERS BRIAN PETER
IPC: H04L25/38
Filed: 1990-04-06
Abstract: A receiver, for use in data transmission systems in which encoded digital data signals DS subject to noise or interference are transmitted over a data transmission path at a particular data rate or frequency, comprises a binary counter DC to which incoming data elements of logic "1" and/or logic "0" are applied to cause the counter to perform an UP and/or DOWN counting operation from an initial rest position for the duration of each data element in turn. The counting rate is predetermined by the output frequency of an associated oscillator OSC and is relatively high compared to the data rate. The most significant bit of the final count position of the counter at the end of each received data element represents the best estimate of the binary logic value of that data element. The final count is also a measure of the quality of the received data. <IMAGE>
Patent GB-2230852-A (GB)
Title: Cooking hob
Inventor: CROSSLEY PETER WILLIAM
IPC: F24C15/10
Filed: 1990-05-25
Abstract: A cooking hob 13 comprises a cooktop 11 in the form of a metal sheet with a heating element mounted beneath the underside of the cooktop, the heating element comprising a substrate 15 having a resistive heater track 14 deposited on a surface thereof, and a heat-conducting metal sheet 16 to provide enhanced thermal contact between the heating element and the underside of the cooktop 11, the thickness of the sheet 16 being greater than the thickness of the metal sheet 11. <IMAGE>
Patent GB-2244661-A (GB)
Title: Degassing hydraulic fluid
Inventor: PAUL DAVID SAMUEL
IPC: B01D36/00
Filed: 1990-06-07
Abstract: The present invention provides an air removal system of particular use for removing air from the oil of an hydraulic system. The invention provides a collection chamber 20 for the storage of oil, a fluid inlet 26 for supplying fluid to the chamber 20 and a deflector member 24 which acts to reduce the kinetic energy of oil entering the chamber 20 and directs the incoming oil substantially parallel with and adjacent to the surface of any oil in the chamber 20. Reducing the kinetic energy of the incoming oil helps prevent any air bubbles contained therein being further broken up. Directing the incoming oil substantially parallel with and adjacent to the surface allows the air bubbles to rise to the surface rather than be drawn back into the hydraulic circuit. Chambers 47, 46 help in condensing oil droplets in the air and baffle plate 36 cuts down splashing brought about by rough movement. <IMAGE>
Patent GB-2232214-A (GB)
Title: A differential mechanism
Inventor: PARSONS DAVID
IPC: F16H48/12
Filed: 1990-06-12
Abstract: The differential comprises a drive input element 40 two outputs cam members 16, 17 rotatable about an axis A, each said member having a single annular cam surfaces 22, 23 thereon of undulating form arranged such that the cam surfaces on the cam members converge towards each other, and a plurality of cam followers 28. The followers have cam engaging end surfaces 29, 30, 32, 33 for imparting drive from the input element 40 to said output cam members. Relative contra rotation of said output cam members causes the cam followers to slide axially. The cam followers 28 are elongate in the direction of axis A and are slidably supported throughout virtually their entire length by the drive input element 40. The followers 28 may be arranged closely adjacent each other to provide a degree of mutual support.
Patent GB-2235815-A (GB)
Title: Digital dialog editor
Inventor: ELSWICK WILLIAM E
IPC: G11B27/028
Filed: 1990-08-28
Abstract: A system is provided for editing dialog in the digital domain. The system generally consists of three sections, a front end, a plurality of audio processor modules and an inputloutput system. The front end section interfaces with the user and provides overall system control. In one embodiment, the user interfaces with the system via AT compatible hardware using proprietary software with a mouse (7) and keyboard (8). A graphic representation of the sound is presented on a high resolution graphics monitor (2). An intelligent machine control processor controls the overall operation of the system. Each audio processor module includes a processor for preforming operations on the associated track of data. A shared memory architecture is preferably used, whereby the audio processor modules are linked by a VME bus. In operation, the analog master recordings are converted to digital by the input system. Each track is stored separately for a audio processor module and disk drive. The user may call up and display segments of a graphic representation of sound on the monitor. The sound may be modified by action of the mouse. The system operates to assemble the edited master from the edit decision list. <IMAGE>
Patent GB-902352-A (GB)
Abstract: 902,352. Dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 8, 1959 [April 17, 1958], No. 12243/58. Class 38 (2). Commutation in a dynamo-electric machine is effected by the use of semi-conductor switching devices. The stator armature conductors 4 of a D.C. motor 1 having a four-pole permanent magnet rotor 3 are wave-wound, conductors separated by a pole pitch being connected in series to form a number of paths 5 (Fig. 4). Each end of each path 5 is connected through separate transistors 18, 19 of PNP type and 21, 22 of NPN type to both supply terminals 20. The shaft 6 of motor 1 carries an auxiliary four-pole field system 7 which co-operates with a pick-up device 8 having coils 9, 10, 11, 12 in which signals are induced to actuate switching of the transistors. Also on shaft 6 is an auxiliary switching device 13 comprising a conductive disc 14 having non-conductive inserts 15, the disc co-operating with brushes 16-16, 17-17. Pick-up coils 9, 10, 11, 12 are connected between the bases and emitters of the transistors 18, 19, 21, 22. As shaft 6 rotates alternating currents flow in the pick-up coils and are applied to the bases of the transistors. The phasing is such that two transistors, e.g. 18, 21, become conductive, while the other two, 19, 22, are non-conductive. Diodes 28, 30 are poled so that they conduct away the currents applied to the bases of transistors 19, 22 when these are non-conductive. A quarter of a revolution la er transistors 19, 22 are conductive while 18, 21 are non-conductive and their associated diodes 27, 29 are conductive. Diodes 31, 32, 35, 36 shunt excess E.M.F. which builds up as a transistor ceases to conduct when a pole moves away from a conductor, or when the motor is being used as a brake. Auxiliary switching device 13 operates on starting and at low speeds and causes the switching of the transistors in the same sequence. At higher speeds 13 may be automatically disconnected by a centrifugal device. In a modification (Fig. 5, not shown) requiring fewer transistors a pair of conductors is inserted in each armature slot and one end of each is connected to the negative input terminal, the other ends being connected through transistors to the positive terminal. The transistors are made conductive at the appropriate times by pulses derived from pick-up coils and applied to their bases as before. The transistors may be replaced by trigger diodes (Fig. 6, not shown), in which case the polepieces are so shaped or wound that the field near the trailing edge is greater than the field over the remainder of the pole face. This ensures that the trigger diodes are cut off at the appropriate time. The invention may be applied to A.C. and D.C. machines. Photo-responsive devices may be used in conjunction with a rotating disc having opaque segments or a capacitative pick-up may be used.
Patent GB-2249668-A (GB)
Title: Antenna
Inventor: GRIFFIN JOHN MERRICK
IPC: H01Q5/45
Filed: 1990-11-06
Abstract: An antenna arrangement includes a main reflector 1 and a sub-reflector 2 which directs received radiation onto a food 3. The sub-reflector 2 also supports a patch antenna 4 which is arranged to receive radiation at a different frequency range than that at which the feed 3 operates. In another arrangement (not shown) the patch antenna 4 comprises an array of antenna elements. <IMAGE>
Patent GB-2239512-A (GB)
Title: Vehicle headlight
Inventor: LOGGIA MICHELE
IPC: B60Q1/068
Filed: 1990-12-12
Abstract: A vehicle headlight wherein an outer casing (2) houses the support (3) of a reflector (3a) adjustable in relation to the outer casing (2) by virtue of a linear actuator (7) having its output member (6) connected to the support (3) of the reflector (3a. The actuator (7) is supported on the outer casing (2) and connected to the same by a screw-nut screw coupling (16) (19) of adjustable length, for adjusting the position of the output member (6) in relation to the casing (2). <IMAGE>
Patent GB-2247778-A (GB)
Title: Bipolar transistors
Inventor: KIM MYUNGSUNG
IPC: H01L29/732
Filed: 1990-12-14
Abstract: The transistor is constituted such that a polysilicon layer as a base electrode (19) is formed at least partly within an epitaxial layer (3). A thick oxide layer (17) is formed under the polysilicon base electrode so that the base region (24, 25) and a collector region (13) are separated, and an impurity is laterally diffused from the polysilicon base electrode to the extrinsic base region (25). The junction capacitance and the transit time between the extrinsic base region (25) and the collector region (13) are reduced, thereby improving the characteristics of the transistor. Further, reach-through due to the highly doped extrinsic base region is eliminated so that a high breakdown voltage of the transistor is obtained, and consequently, with no reduction in the breakdown voltage, the thickness of the epitaxial layer can be reduced, thereby improving the speed characteristics of the transistor. <IMAGE>
Patent GB-2241389-A (GB)
Title: Floor box
Inventor: MCDONNELL BRIAN JOHN
IPC: H02G3/18
Filed: 1991-01-29
Abstract: A floor box 1 comprises a collar 2 for mounting in an opening in a floor 3 and a lower housing 4 having knock-out inlet 5 for cables 6 and sockets 10, 11, 12. The box includes a door assembly comprising a door frame 15 and door 16 having cable outlets 40 through which cables connected to the sockets 10, 11, 12 are led. The lower housing 4 is releasably mounted to the collar 2 by means of a male lug part 20 and a female slot 21 defined by a rod 22 of spring material which is releasable from the lug part 20. <IMAGE>
Patent GB-2254480-A (GB)
Title: Phase modulation
Inventor: MELLIS JOHN
IPC: G02F/
Filed: 1991-06-03
Abstract: A travelling wave laser amplifier (2) is operated as a phase modulator by applying a modulation signal on the bias injection current. To increase modulation frequency response at the higher end and to minimise unwanted amplitude modulation the input optical signal and injection bias current are preferably set so that the amplifier is running under saturated gain conditions.
Patent GB-2245854-A (GB)
Title: "Improvements relating to spanners"
Inventor: ROSE PETER ANTHONY
IPC: B25B13/56
Filed: 1991-08-27
Abstract: A combination spanner has its ring end of a different size from that of the open end. A set of such spanners can all have this characteristic, with a ring on one spanner being matched by an open end on another spanner throughout the set.
Patent GB-2248679-A (GB)
Title: Method of measuring and adjusting the optical axis of a headlight
Inventor: MURATA NAGATOSHI
IPC: G01M11/06
Filed: 1991-10-09
Abstract: An optical axis of a headlight is measured by disposing a lattice member 3 in front of the headlight. The lattice member has a plurality of longitudinally elongated lattice holes 2 which are arranged in a form of a matrix. An illuminated area and an illuminance of light beams to be transmitted through the lattice member are measured at each of illuminating regions which are divided into a form of a matrix by the lattice holes. The position of a light source of the headlight is located from an illuminating region of maximum illuminated area and a position of an optical axis of the headlight is located from an illuminating region of maximum illuminance. The optical axis is adjusted depending on the located position of the light source and the position of the optical axis such that the inclination angle of the optical axis coincides with a set inclination angle. <IMAGE>
Patent GB-2262362-A (GB)
Title: A process for making a printing screen plate and the device therefor
Inventor: HUNG TI-KUN
IPC: G03F7/12
Filed: 1991-12-11
Abstract: The device for making a printing screen plate comprises a box 10 having a transparent film 17, a screen holder 18 and a rubber securing pad 24 contained therein. Using the device to produce the printing screen plate requires drawing the desired pattern on the transparent film, covering a screen 23 on the screen holder with a layer of photo-resist material, and then exposing said box to the sun through glass 11. A printing screen plate is obtained after washing out the photo-resist which was not exposed to the sun. Thus a simple inexpensive process is achieved for making printing screen plates particularly of an unusual size. <IMAGE>
Patent GB-2257245-A (GB)
Title: Combined heat and power system
Inventor: KNOWLES JOSEPH
IPC: F02G5/04
Filed: 1992-07-02
Abstract: A combined heat and power (CPH) system for a building has an electrical generator (12) for supply power and a gas engine (14) which drives the generator, contained in a housing (30). Recirculating air is drawn in through an inlet (32), over the electrical generator, gas engine and its cooling and exhaust systems (38, 36) where it is heated by waste heat. It is then mixed with controlled amounts of fresh air to regulate the air temperature before being passed into the building air recirculating system. The gas engine can be run at a constant speed which is not dependent on the required temperature of the recirculating air. Water may be heated via heat exchanger 70 to provide domestic hot water. <IMAGE>
Patent GB-2268458-A (GB)
Title: Self-powered electric motor vehicle.
Inventor: MURRAY DENNIS GERALD
IPC: B60L8/00
Filed: 1992-07-07
Abstract: The vehicle uses battery power to move off and at low speeds. There are two pairs 1, 2 of 24 volt batteries, each pair working independently of the other. The batteries power two generators 3,4 sited on the roof of the vehicle. At a speed of 29-32 kph, the generators become activated by the slipstream to power the generators. The battery supply cuts out and the batteries recharge. The system is now completely self-powered and will run for as long as needed. The generators 314 power the main power unit 7 and thence the propulsion motor 8, battery charging units 10,11 and the ancillary electrical system 12. The energy produced by the slipstream-powered generators is far greater than the energy needed to power the vehicle and it is 100% environmentally friendly. It is estimated that this system will power the vehicle from 0 to 60 kph in 5 seconds and give a maximum speed well in excess of 190 kph. <IMAGE>
Patent GB-2269672-A (GB)
Title: Detecting discontinuities in composite components
Inventor: ROWSE DAVID PAUL
IPC: G01N27/00
Filed: 1992-08-14
Abstract: Apparatus 14 detects the presence, presence and location, or absence of points of discontinuity within the composite component 12. The component comprises an insulating layer 28 sandwiched between two conductive layers 22 of the composite component, which may be a carbon fibre reinforced material. A transmitter 16 launches on electromagnetic wave into the insulating layer and means 18 receives the electromagnetic wave from the layer 28, the received wave being composed at 20 with a known wave so as to detect any difference in the two signals due to partial reflection at any point of discontinuity in the layers. The signal is launched into the insulating layer by connected equal and opposite currents WT+, WT- to connectors 30, 32 on the conducting layers, the combination of layers functioning as a waveguide. The composite component may be an aircraft wing. <IMAGE>
Patent GB-2271999-A (GB)
Title: Paint remover comprising dichloromethane, alcohol and amino compound
Inventor: MOGRIDGE ITHIEL
IPC: C09D9/04
Filed: 1992-10-27
Abstract: A paint remover composition comprises a mixture of methylene chloride, an aliphatic alcohol containing from 1 to 6 carbon atoms and at least one compound selected from       (i) compounds having the general formula I   <IMAGE>  wherein  R<1> is H or a group of the formula   <IMAGE>  where R<3> is a straight or branched chain 6-22 C alkyl or alkenyl group; R<2> is H, methyl or ethyl; n is 1 or 2; and 0 is -COOM<1> or -SO3M<1>, in which M<1> is an alkali metal cation or an optionally substituted ammonium group;     (ii) compounds having the general formula II   <IMAGE>  wherein R<4> is a straight or branched chain 6-22 C alkyl or alkenyl group; R<5> is H or -CH2COOM<2>, where M<2> is H, Na or a substituted ammonium group; R<6> is -COOM<3>, -CH2COOM<3> or -CH(OH)CH2SO3M<3>, where M<3> is H, Na or a substituted ammonium group; A<-> is a non-toxic and anion; and     (iii) compounds having the general formula III   <IMAGE>  wherein R<7> is H or -(CH2CH2O)z-H; R<8> is a straight or branched chain 6-22 C alkyl or alkenyl group; m is 0 or 1; and each of x, y and z is an integer wherein the total number of (CH2CH2O) groups is in the range of from 2 to 50.
Patent GB-2263475-A (GB)
Title: Ball dispensing unit
Inventor: WARING CHRISTOPHER JOHN
IPC: A63B47/00
Filed: 1993-01-12
Abstract: A dispensing unit for separating balls from a supply stream, particularly for use on golf driving ranges, comprises a supply tube (10) and a delivery tube which has a header tube (12) with a mouth portion (16) leading from the supply tube (10). The supply tube (10) is provided with deflector means (14) inclined towards the mouth (16) of the header tube (12) but stopping short thereof so as not to prevent the onward passage of balls through the supply tube, whereby balls passing along the supply tube (10) are deflected into the mouth (16) to fill the header tube (12) and when the header tube (12) is full continue to pass through the supply tube (10). A typical installation includes a trunk supply tube leading to several of the dispensing units in series. When the header at the first unit in the series is full further balls pass on to the next unit until its header is full and so on until all headers in the system are full. <IMAGE>
Patent GB-2276596-A (GB)
Title: Steering system for forklift trucks.
Inventor: KEMSHALL PAUL ANDREW
IPC: B62D5/07
Filed: 1993-03-22
Abstract: An electric forklift truck has a single motor 2 which drives a pump 4 which provides, via a priority valve 16, hydraulic fluid for the working hydraulics 6 and a steer unit 8. The motor is driven continuously at an idle speed in order to generate in the steer unit a dynamic load sensing signal to control the position of the priority valve. An optical, magnetic or electromagnetic sensor 26 is associated with the steering column 24 in order to provide an electric control signal to the motor controller 10 to step up the speed of the motor in response to a steering demand. <IMAGE>
Patent GB-2277692-A (GB)
Title: Apparatus for playing a game
Inventor: WONG SAMSON KING-FAI
IPC: A63F3/00
Filed: 1993-05-05
Abstract: The apparatus comprises a board 10 marked with a playing path 12 divided into a plurality of playing areas 13 most of which each bear a letter of the alphabet, a dice or other random number generating means for determining the distance which a player should move a playing piece along the playing path, and means, preferably a card, indicating at least one word which a player should attempt to complete by landing on playing areas bearing the appropriate letters.   <IMAGE>
Patent GB-2269144-A (GB)
Title: Vehicle brake temperature control.
Inventor: MURRAY IAN GORDON
IPC: B60T5/00
Filed: 1993-07-14
Abstract: An active system for providing cooling air to car brakes ensures that the flow of air is not directed at the braking assembly continuously. An air duct (10) directs air to the calliper area (4) of a brake assembly (2, 4). The air duct (10) is fitted with a valve (12) which is normally closed, to prevent the flow of air therealong. An electronic control unit (16) receives information from sensors (18, 20) as to the brake line pressure and the speed of the car. If the electronic control unit (16) determines from the information received that the driver of the car is making a heavy braking manoeuvre, it controls a motor (14) to open the valve (12) so that air flow to cool the brake assemblies is directed thereto. <IMAGE>
Patent GB-2281498-A (GB)
Title: Sound proof helmet
Inventor: MCCOMBE ANDREW WIGHTMAN
IPC: A42B3/16
Filed: 1993-08-02
Abstract: A full face motorcycle helmet with integral earmuff type of hearing protection is described. The earmuffs are adjustable for "fit" by virtue of inflatable reservoirs between their outer surface and the inner surface of the helmet skull. Inflation/deflation of these reservoirs is controlled by a pump/release valve mechanism sited on the helmet chinpiece. <IMAGE>