baber/WOPTO huggingface dataset:
Patent GB-2184816-A (GB)
Title: Non-return valve
Inventor: ROSSEL HELMUT
IPC: F04C18/344
Filed: 1986-12-09
Abstract: A non-return valve, interposed between a vacuum tank, particularly of the kind used for the braking system in motor vehicles, and a vacuum pump, comprises a valve seat 8, a valve head 10 urged towards the seat by a compression spring 11. The valve head is dimensioned and constructed, relative to the passage in which it is installed, in such a way that when the air-stream flowing through the valve passage exceeds a certain speed of flow the valve head is carried along, against the influence of the compression spring, until it obturates an aperture 13, leaving open for the passage of air only at least one further aperture 14, thereby throttling the flow of air discharged into the engine crankcase and ensures good starting of the engine. <IMAGE>
Patent GB-2189527-A (GB)
Title: Cavity tray for wall abutting an inclined surface
Inventor: SHILLABEER JOHN LOUIS
IPC: E04B1/70
Filed: 1987-04-02
Abstract: A cavity tray has elongate wall portions 12, 14; (112, 114 Fig. 5) constituting a base 12; a rear wall 14, and also has one end wall 16. However it is symmetrical so that the functions of the base 12 and the rear wall 14 are exchangeable to reverse the "handedness" of the tray. There may be flaps 17; (117 Fig. 5) extending from the elongate wall portion. A flap 17 on the rear wall 14 assists in bridging a cavity; that on the base 12 may assist in installing the tray correctly, and in locating a tray subsequentially. The end wall 16 may be adapted to be folded or cut to accommodate a thick outer skin 30 of a cavity wall. <IMAGE>
Patent GB-2206814-A (GB)
Title: Oil skimmers
Inventor: FOULDS MICHAEL CHARLES
IPC: E02B15/06
Filed: 1987-06-10
Abstract: An oil skimmer comprises a rotary shaft 2 carrying oil-collecting discs 3, 4, 5 and scrapers (not shown) which remove oil from the discs. To assist flow of floating oil 7 towards the discs, impeller blades 8,9 are provided on the shaft and/or on the discs. In Figs. 3 to 5 the blades bridge the gap between two adjacent discs. <IMAGE>
Patent GB-2206189-A (GB)
Title: Finned heat exchanger tubes
Inventor: LUND GRAHAM
IPC: F28F13/06
Filed: 1987-06-24
Abstract: A boiler heat exchanger comprises a flueway, a waterway provided through at least one externally-finned heat exchange tube 3, and at least one baffle located in spaced relationship to the fins of the heat exchange tube to guide and constrain hot flue products in the flueway into closer contact with and over a greater surface area of the fins than if the baffle were absent, the battle being of unitary construction and comprising a series of baffle segments 7 which are at least partially located in the spaces between the fins of the heat exchange tube. The provision of the battle improves the efficiency of the heat exchanger. <IMAGE>
Patent GB-2207286-A (GB)
Title: Dipole antenna
Inventor: WOLOSZCZUK EDMUND WERGILIUSZ
IPC: H01Q9/28
Filed: 1987-07-22
Abstract: A half-wave notch fed dipole 1 comprises four parallel arms e.g 1A, 1B, formed from extensions of the outer conductors, e.g 3, of a triplate feed structure 2. The dipole is fed directly from the inner conductor 5 of the triplate. <IMAGE>
Patent GB-2197772-A (GB)
Title: Support framework
Inventor: SQUIER DANIEL WORRIN
IPC: A01B43/00
Filed: 1987-10-16
Abstract: The present invention relates to an axially elongated support framework adapted to be transported over the land and to receive and transport in operative co-operation therewith a demountable machine which is to lift material from the land and to transport that material rearwardly of the machine, the said machine being adapted to be mounted at or adjacent one end of the framework and to act as the first stage of an article handling process to be carried out in the framework; said framework having a second article handling means for receiving the material to be discharged from the said machine and to transport it axially towards the other end of the framework in a second article handling stage and to discharge that material to a third article handling stage; and said framework having a third article handling means mounted at or adjacent the other end of the framework and adapted to receive material from said second article handling means and to discharge those articles from the framework and/or to transport at least some of the articles to a storage means carried by the framework.
Patent GB-2219288-A (GB)
Title: Decorating ceramic ware and other articles
Inventor: FINCH DAVID MICHAEL
IPC: C04B41/89
Filed: 1987-12-31
Abstract: In the manufacture of an article of glazed ceramic ware a matt flux is applied to a selected area of the surface of the article before final firing. The flux sets to form an area which can be substantially permanently coloured (by means of spirit-based, oil-based or alcohol-based pens) enabling the article to be decorated subsequently in a simple manner to individual taste. The area of matt flux may be applied together with decoration in colour prior to firing to set the flux and the colour.
Patent GB-2214395-A (GB)
Title: Meat substitute from curd
Inventor: MURPHY PAUL
IPC: A23C19/045
Filed: 1988-01-29
Abstract: A mock meat is prepared by firstly curdling milk, separating off the curd and then compressing it until firm. Thereafter the compressed curd may be fried and then cooked in a prepared sauce until tender.
Patent GB-2206155-A (GB)
Title: Internal combustion engines and methods of operation
Inventor: WANG LIN-SHU
IPC: F02G3/02
Filed: 1986-09-03
Abstract: An improved internal combustion engine apparatus and method of operation designed to achieve high efficiencies over a range of operating conditions includes the monitoring of the exhaust gas temperature (56) and air-fuel ratio (32, 34) on a continuing basis such as by a microcomputer (58). The exhaust gas temperature is compared to a stored value and compression of the input air is varied to cause the exhaust gas temperature to equal the stored value. By minimizing the exhaust gas temperature increased engine efficiency can be realized. The invention may be embodied in a variety of engine configurations, including piston and turbine systems.
Patent GB-2218595-A (GB)
Title: Smart socket (mercury)
Inventor: SAVOULLIS IANNIS
IPC: H04M1/27485
Filed: 1988-05-13
Abstract: An applique unit for use with a telephone connected to one network (BT) but where access is needed to another network (MCL) monitors the line to detect when the subscriber initiates a call. When he starts to "dial", the telephone is switched to a state in which it is connected to the exchange via the unit. The digits go into store, and are checked as they do so; if they are for a BT call they are sent out in the normal way and the unit drops out to leave the telephone once again connected to the line. If the call is for MCL, there is a pause and the MCL access code is sent, followed by the caller's identity code and the wanted number. In each case sending is in the format appropriate to the network to be used. The criterion for choosing MCL can be either that the wanted line is only accessible via MCL, or that the wanted call would be cheaper via MCL. <IMAGE>
Patent GB-2217109-A (GB)
Title: Capacitor termination and facility for protection
Inventor: VENTURINI LUCIO
IPC: H01G4/224
Filed: 1988-12-28
Abstract: The capacitor casing consists of two welded plastics half shells, defining ribbing (1') suitable for supporting an explosion-preventing diaphragm (2) which deflects under pressure and has underlying means (2'') of hooking for a conductor wire (3) so that, upon outward deflection, said wire (3) is cut off from the capacitor element (5). The ribbing (1') clamps the respective conductor wires (3,4) between the mated half shells. A shell projection (B') clamps a conductor wire (3, 4) against a notch (m'') in a terminal (m'). The terminal includes a spring portion (m''') that clamps an external conductor wire in the terminal. The capacitor element (5) is embedded in resin (r) that defines a vent channel (t). Mounting means (1''') or (1'' ''') are provided by the casing halves. <IMAGE>
Patent GB-2227854-A (GB)
Title: Integrated optics asymmetric y-coupler
Inventor: CARROLL JOHN EDWARD
IPC: G02F1/313
Filed: 1989-02-03
Abstract: An integrated optics beam splitting/combining coupler in which a first integrated optics waveguide (5) is optically coupled with second and third waveguides (7, 6) takes the form of an asymmetric Y. The first waveguide forms the stem of the Y, the third waveguide is in line with the first and forms a through arm, and the second waveguide forms a angled arm which is optically coupled with the stem by means of a mirror (9). <IMAGE>
Patent GB-2231728-A (GB)
Title: Trimming a variable resistor
Inventor: WILLIAMS DAVID ANTHONY
IPC: H01C17/242
Filed: 1989-05-16
Abstract: A variable resistor e.g. fuel tank sensor is produced by providing a plurality of electrical contact strips 22 on a ceramic substrate 13 which strips are interconnected by links 25 and upon which is located a resistive film 26 bridging said strips. The links between adjacent strips are then sequentially severed and the resistive film therebetween trimmed e.g. by laser in a similar sequential manner to produce a desired value for the electrical resistance of the resistor when measured across all the strips. <IMAGE>
Patent GB-2219063-A (GB)
Title: Method and apparatus for manufacture of an umbilical
Inventor: PEART ROBERT HENRY
IPC: D07B3/00
Filed: 1989-05-19
Abstract: A method of and apparatus 10 for manufacture of an umbilical comprising a plurality of cables or conduits 13 utilises guide means 24 axially spaced apart in the longitudinal direction of the apparatus 10 and each comprising a guide plate 26 rotatable in an oscillating manner about a central axis extending substantially parallel with the longitudinal direction of the apparatus 10. Each guide means 24 has a plurality of guide positions 27a, 27b etc spaced radially from the central axis of rotation so that a cable or conduit 13 extending through the guide positions e.g. 27a of the two guide means 24 is maintained spaced from the central axis. The guide plates 26 of the guide means 24 are rotatable in an oscillating manner in unison with one another and one rotatable relative to the other, with the guide plate 26 of a second guide means 24 being constrained to rotate only through an angle range of less than +/-180 DEG  more than the angle range of the guide plate 26 of the first guide means 24. Means e.g. a tapering head 19 is provided for securing and holding the resulting assembly of conductors 13 in a reversing lay orientation thereby to result in an umbilical of flexible construction. <IMAGE>
Patent GB-2225289-A (GB)
Title: Fine adjustment of ribbon lifts in multicolour printers
Inventor: ITOH WATARU
IPC: B41J35/14
Filed: 1989-10-16
Abstract: The ink ribbon cassette holder of a multicolour printer is lifted by coaction of a rotary cam (driven by a stepping motor) on the printhead carriage and an adjustably positioned follower roller on the cassette holder. As shown, the follower roller (20) is mounted on a lever (14) which is itself pivoted about the cassette holder rocking axis (13) and is secured with respect to the cassette holder by a set screw (16) engaging an arcuate slot (15). It is stated that, while the correct mutual lifts required to bring selected colour stripes of the ribbon into registry with the printing station can be effected by appropriate command of the stepping motor, "zero error" correction can be effected by adjustment of the lever. <IMAGE>
Patent GB-2230333-A (GB)
Title: Airblast fuel injector tip and method for reducing vapor lock
Inventor: HALVORSEN ROBERT M
IPC: F23D11/10
Filed: 1990-05-15
Abstract: An airblast fuel injector 10 capable of accommodating high fuel temperature at the injector tip without deleterious fuel vaporization problems and resultant combustion instability in a gas turbine engine includes part annular spring valve 50 mounted on an annular shoulder of an inner injector body 14 forming a fuel chamber 48 with the valve having a cantilever valve head 110 for controlling fuel flow from a fuel swirling orifice 54 in the shoulder near the injector tip. The method involves valving the fuel flow in the injector tip near to the fuel discharge orifice 56 in a valve closed manner below a selected minimum fuel pressure and in a valve metering manner above the selected fuel pressure with valving located sufficiently upstream therefrom that the airblast operational characteristics of the injector due to inner and outer air discharging past lips 60, 62 are not adversely affected. <IMAGE>
Patent GB-2235090-A (GB)
Title: "Contacts for semiconductor transducers"
Inventor: LEHTO ARI
IPC: G01L9/12
Filed: 1990-08-03
Abstract: In a method of fabricating contact areas (5') on a multilayer semi-conductor element, such as a transducer (1') having layers of conductive material separated by insulating material, the contact areas (5') are formed on the side surface (7) of the transducer by metal deposition using laser-based deposition, sputter deposition, vapour deposition, electrolytic or autocatalytic plating techniques. By virtue of this fabrication method of contact areas, the size of the transducer (1') can be reduced and the transducer (1') can be bonded to a circuit board using surface-mount technology. <IMAGE>
Patent GB-2249412-A (GB)
Title: Substrate voltage generator for a semiconductor device
Inventor: MIN DONG SUN
IPC: H01L27/04
Filed: 1990-10-31
Abstract: A substrate voltage generator for a semiconductor device, comprises an oscillator (10) for generating an oscillating signal, the period of which is maintained constant by compensating an appropriate resistance value according to temperature variation; a voltage pump driver (20) for providing clock signals 180 DEG  out of phase; a voltage pump (30) for generating a substrate voltage VBB; a level detector (40) for detecting the substrate voltage and providing a clock signal when the voltage is not at a predetermined level; and an oscillator driver (50) for providing a bias voltage to the oscillator (10) according to the state of the clock signal from the level detector (40). <IMAGE>
Patent GB-2249517-A (GB)
Title: Marking or cutting tools
Inventor: FORESHEW SHAUN JOHN
IPC: B25H7/04
Filed: 1990-11-06
Abstract: A workpiece marking or cutting tool, comprises a stock (12) in which an elongate rod (36) is located, the rod having a blade at one of its ends. The blade may be in the form of a disc (40), a part-disc or a pin. The disc may have a diamond cutting edge for marking glass, tiles or the like. The rod is offset from the centre of the stock. <IMAGE>
Patent GB-2241116-A (GB)
Title: Directive radio receiver.
Inventor: TALWAR ASHOK KUMAR
IPC: H01Q3/26
Filed: 1990-12-11
Abstract: A radio receiver (32) having a narrow effective beamwidth includes a receiver antenna (30) and an interference cancellation system having an auxiliary antenna (36). The receiver antenna (30) is selected to exhibit an omni-directional antenna pattern, while the auxiliary antenna (36) is selected to exhibit a null in its antenna pattern. The null is directed toward the desired signal such that any signals outside of a predetermined angle from the center of the null will be cancelled by the interference cancellation system, and the desired signal which is received within a predetermined angle from the center of the null will be substantially unaffected by the interference cancellation system. <IMAGE>
Patent GB-2251276-A (GB)
Title: Planetary change speed bicycle hub gearing
Inventor: NAGANO MASASHI
IPC: B62M11/16
Filed: 1991-12-24
Abstract: A self-contained change speed apparatus for use on a bicycle having a drive member 2 and a hub body 3 rotatably supported on a fixed shaft 1, and two planetary gear mechanisms 4, 5 arranged on a drive transmission path extending from the drive member 2 to the hub body 1. The planetary gear mechanisms include planet gears 11b, 12b; 13b, 14b meshed with sun gears 11, 12a; 13a, 14a switchable through externally controllable one-way clutches between a state of free rotation relative to the fixed shaft 1 and a state of being locked to the fixed shaft 1. The controls of the one-way clutches acting on the sun gears 11a, 12a; 13a, 14a are effected by relative positional relations between projections 21b, 22b, 23b formed on the fixed shaft 1 and control sections formed on a control member 8 shiftable on peripheral surfaces of the fixed shaft 1. Such controls of the sun gears 11a, 12a; 13a, 14a determine an output line extending through one of the two one- way clutches. <IMAGE>
Patent GB-2253764-A (GB)
Title: Transceiver mounting assembly having integrally formed lock
Inventor: REPPLINGER DANIEL J
IPC: H04B1/38
Filed: 1992-01-30
Abstract: A mounting assembly (10) for mounting a transceiver (80) thereupon. The mounting assembly (10) is integrally formed of a flexible material, and permits affixation of the transceiver (80) thereto when the transceiver (80) is positioned in a confronting relation upon the assembly (10), and then translated into a locking position thereupon. A lock (18) formed integral with the mounting assembly (10) locks the transceiver (80) in the locking position. Application of an actuation force upon the lock (18) unlocks the transceiver (80) to permit translation of the transceiver (80) out of the locking position to permit the transceiver (80) to be lifted thereaway. <IMAGE>
Patent GB-2253348-A (GB)
Title: Sustained release compositions
Inventor: HANSRAJ BASHIR RAMZANALI
IPC: A61K9/50
Filed: 1992-02-28
Abstract: The compositions comprise cores including a pharmacologically active ingredient and having a diameter not greater than 5 mm, the cores being coated with a mixture comprising a) as a film forming agent at least one poly (ethyl acrylate, methyl methacrylate, trimethylammonioethyl methacrylate chloride) and b) at least one anionic surfactant wherein the ratio of a) to b) is from 100:1 to 10:1 by weight. The surfactant may be an alkylaryl sulphonate, sodium lauryl sulphate, a sulphosuccinate, a sulphosuccinamate, a sarcosinate or a taurate and the active ingredient may be (inter alia) idazoxan mebeverine, paracetamol, aspirin or betahistine. The film forming agent may be Eudragit RS or Eudragit RL (Trade Marks).
Patent GB-2265091-A (GB)
Title: A golf putter.
Inventor: HOWARD CHRISTOPHER ROWLATT
IPC: A63B53/04
Filed: 1992-03-10
Abstract: A golf putter comprises a head, having a front surface (14a), and a shaft (10) secured to the head, the head having a transparent plastics portion (14) extending rearwardly from the front surface (14a). The transparent plastics portion (14) is secured in a peripheral frame (12) to which the shaft (10) is attached. <IMAGE>
Patent GB-2255148-A (GB)
Title: A structurally composite metal and plastics tube and method of manufacture
Inventor: BARFIELD MALCOLM RAYMOND
IPC: B29C48/153
Filed: 1992-04-24
Abstract: A tube for fluids is a substantially rigid structural composite of metal and plastics functioning together to provide the tube with strength to resist internal or external fluid pressures through a range of operating temperatures and, when required, with a heat exchange capacity. The metal forms a tubular core (15) having openings throughout its length occupying at least 5 % of its total surface area. The plastics material forms imperforate inner (24) and outer (25) layers, each at least 0.1 mm thick, covering the inside and outside of the metal core and integrally joined through the openings. The combined thickness of the plastics layers is substantially equal to or greater than the metal thickness. Preferably the metal is expanded and flattened sheet or strip. The inner plastics layer may be a pre-formed lining inside the core and the outer layer may be extruded onto the core to join through the openings to the inner layer. Preferably the plastics is extruded externally onto the core to form both layers.
Patent GB-2268079-A (GB)
Title: Markers for clay pigeons
Inventor: LEE JAMES
IPC: F41J9/16
Filed: 1992-08-21
Abstract: A marker for clay pigeons comprises a ring 5 of resilient material having a wall 6 adapted to engage outwardly the rim of a standard clay pigeon target. The marker be a dished disk having an upwardly curving central portion which fits into the underside of a clay pigeon target and an upwardly directed wall or it may take the form of a simple annulus having inner and outer upwardly directed walls. Incisions 8 or a castellated ring may be provided. In an alternative embodiment the marker may comprise a central disc-shaped core carrying a plurality of legs. The markers are constructed from a synthetic resin polymer or a composition based thereon such as polystyrene which may be painted or pigmented with a distinctive colour and formed by moulding or vacuum forming from sheet preferably having a thickness in the range 0.25 to 0.75 mm. Alternatively the marker may be formed by dipping or spraying a mould or a clay pigeon target with a solution, dispersion or other liquid mixture containing the synthetic resin. <IMAGE>
Patent GB-2261699-A (GB)
Title: Bag, rucksack or the like fastener
Inventor: FUDAKI TSUTOMU
IPC: A45F3/04
Filed: 1992-11-04
Abstract: A bag rucksack or the like comprising: a bag body (1) having a mouth; a covering flap (2) extending from said bag body (1) for covering the mouth; a fastener (4) having an anchoring portion secured to said covering flap (2) and a locking tongue (4c) resiliently deformable when said locking tongue (4c) is depressed on its front side; and a receptacle (3) having a gate-shape holding portion (3a) for detachably catching said locking tongue (4c) of said fastener (4), said receptacle (3) having an upper end portion secured to said bag body (1) and a lower end portion separate from said bag body (1). <IMAGE>
Patent GB-2273216-A (GB)
Title: A modulator circuit
Inventor: LIGERTWOOD PETER JOHN
IPC: H04N9/80
Filed: 1992-12-03
Abstract: This invention relates to a modulator circuit (2) for a video system such as a VCR. The modulator circuit (2) is selectably operable in any one of a plurality of modes of operation in order to comply with the operating standard of the video system. The modulator circuit comprises oscillator means (4, 10) for generating a carrier signal having a selectably variable frequency, and modulating means (3) coupled to receive the carrier signal and having an audio input (24) for receiving an audio signal and a video input (26) for receiving a video signal, the modulating means using the video and audio signals to generate a modulated output signal on the carrier signal, the generation of the modulated output signal depending on selectably variable operating parameters of the modulating means. The modulator circuit further comprises control means (5, 6, 20) coupled to the oscillator means (4, 10) and to the modulating means (3), for receiving a mode select signal (SCL, SDA) and for selecting the frequency of the carrier signal and for selecting predetermined values for the variable operating parameters of the modulating means in dependence on the mode select signal whereby the modulated output signal is generated in accordance with one of the plurality of modes of operation. <IMAGE>
Patent GB-2266018-A (GB)
Title: Sigma-delta data converter
Inventor: THURSTON ANDREW MARK
IPC: H03M3/02
Filed: 1993-04-06
Abstract: In a sigma-delta analogue-to-digital converter, the digital output is subtracted in analogue form from the input, and the resulting difference signal is passed through filter means before being quantised at quantising means (13). Instead of feeding the output of the final filter stage to the quantising means to include all four orders of filter response, the different orders of the filter response are independently extracted at differential amplifiers (10, 11, 12, 17) and summed for input to the quantising means. This simplifies the design of the analogue-to-digital converter. The amplitudes of the third and fourth orders are limited to promote overload recovery performance.