baber/WOPTO huggingface dataset:
Patent GB-2089740-A (GB)
Title: A tire and wheel assembly
IPC: B60B21/12
Filed: 1981-12-08
Abstract: A tire and wheel assembly comprises a wheel rim (10), a tire (22), an inner tube (20) having a valve stem (18), an opening (16) in the wheel rim for receiving the valve stem, a flap (24) disposed between the wheel rim and the inner tube and having an aperture (26) for the stem (18), and a reusable shield (32) interposed between the flap and the wheel rim to prevent exposure of the flap through the rim opening (16). The shield covers the rim opening, has an aperture (31) which snugly receives the valve stem (18) and may be made of a resilient material, e.g. plastics, which is resistant to deterioration when exposed to substances such as grease, oil, and road salts. <IMAGE>
Patent GB-2119066-A (GB)
Title: Vehicle with hydrostatic transmission
Inventor: SENGER MATTHIAS NORBERT
IPC: B62D11/04
Filed: 1982-04-16
Abstract: A swashplate pump (44) driven by the vehicle engine is arranged in circuit with motors (14a, 16a) mounted on associated wheels and a flow divider/ combiner (58) intended to equalize flow to the motors. The circuit also includes a restricted balance line (86) for accommodating variation in tyre wear or inflation pressure, oppositely acting relief valves (60), and a valve (62) for diverting working fluid to tank via relief valve (100) for cooling purposes. The vehicle may include two such circuits driving wheels at opposite sides of the vehicle. <IMAGE>
Patent GB-2102952-A (GB)
Title: Distance measuring devices
Inventor: HAMMOND NORMAN GEORGE
IPC: G01S15/74
Filed: 1982-06-28
Abstract: A generator unit 1 produces a pulsed sonic or ultrasonic signal which is received by a transducer 5 and the signal is passed to an analysing unit which determines the receipt of a correct signal and causes a signal generating unit to create a modified signal which is transmitted by a transducer 6 back towards horn 10 on the generator unit 1. The generator unit 1 then responds to the modified signal and calculates the time between transmission of the original signal and receipt of the modified signal and displays an indication of the distance of the measurement path 3. The modified signal may differ from the initially transmitted signal as regards its frequency or amplitude. <IMAGE>
Patent GB-2126535-A (GB)
Title: Wheeled household transporter
Inventor: MCMASTER MARCELLA
IPC: D06F95/00
Filed: 1982-09-08
Abstract: The transporter (10) (e.g.for wet washing), comprises a fold-flat frame (12) formed by a pair of ladder units (13, 14) pivotally interconnected at (15A, 15B) and having wheels (16, 17). A container device (20) primarily made of netting but incorporating a rigid base tray (21) is removably secured to the frame (12). The frame may be made from plastics-covered wire and the netting, tray and wheels may be of plastics. Pockets (22, 23) may be provided. <IMAGE>
Patent GB-2127692-A (GB)
Title: Hydrogen peroxide liquid film sterilization method
Inventor: KOUBEK EDWARD
IPC: A61L2/20
Filed: 1982-09-29
Abstract: Hydrogen peroxide sterilization of medical articles whereby there are obtained the advantages of both vapour penetration, especially for such articles as surgical packs, and direct liquid-sterilant article contact, in which a vapour mixture comprising hydrogen peroxide is brought into contact with the article to be sterilized, the article being at a temperature below the dew point or condensation temperature of the vapour mixture, is caused thus to condense as a liquid film on the article, and is revapourized and hence removed from the so-sterilized article.
Patent GB-2131863-A (GB)
Title: Buckle
Inventor: CHEETHAM GORDON
IPC: A44B11/28
Filed: 1982-12-14
Abstract: The buckle has a plate-member (11)with a hook (14) at one end and slots (12, 13) at the other end for engaging straps of a harness. A box-like latch (20) has a lug (26) which engages a slot (15) in the member (11) for pivoting the latch. A leaf spring (30) is housed in the latch and urges the latch to a hook-closing position, with an edge (22) opposite to the lug (26) engaging the hook (14). The hook can be opened by depression of the latch against the spring bias, so that an eye-member 40 can be engaged with the hook. The spring has a part (31) located in the latch (20) and a further part (32) engages a stop (16) on the plate- member (11) to locate both the spring and the latch on the plate-member. <IMAGE>
Patent GB-2112946-A (GB)
Title: Electromagnetic flowmeters
Inventor: THATCHER GORDON
IPC: G01F1/00
Filed: 1982-12-20
Abstract: In an electromagnetic flowmeter the flow path is defined by a tubular member (4) of homogeneous electrically conductive glass having high electrical resistivity. Radially extending opposed electrodes (2) make electrical contact with the glass (4) without penetrating its wall. The tubular member (4) may be housed in a non-conducting glass body (1) in stainless steel housing (3). In order to measure rate of flow in pipes not running full a second pair of opposed electrodes may be provided displaced 90 DEG  with respect to the first pair. The magnetic field of the flowmeter is in this case produced by a pair of opposed magnets disposed at 45 DEG  displacement from each pair of opposed electrodes. <IMAGE>
Patent GB-2115008-A (GB)
Title: Electroplating chromium
Inventor: BARCLAY DONALD JOHN
IPC: C25D3/06
Filed: 1983-01-27
Abstract: A process for electroplating chromium comprising pre-treating the surface of a part to be plated with chromium by forming a deposit of a sulphur compound thereon, which sulphur compound accelerates the reduction of chromium ions to chromium metal. Preferably the deposit is formed cathodically in a solution containing a sulphur species. The sulphur species include thiocyanate, or species having S-O or S-S bonds: or a species having a -C=S or -C-S group within the molecule. Alternatively the sulphur compound can be chemically deposited by evaporating sulphur on to the surface or by immersing the part in a solution of sulphide ions.
Patent GB-2131533-A (GB)
Title: Heat engines or refrigerators
Inventor: WHEATLEY JOHN CHARLES
IPC: F02G1/043
Filed: 1983-01-31
Abstract: A refrigerator comprises a compressible fluid that is cyclically compressed and expanded by a positive displacement drive means 12. A second thermodynamic medium 16 is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with on respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. The apparatus may comprise an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium 16 can be coupled to suitable heat exchangers 20,22 to utilize the apparatus as a simple refrigeration device. Alternatively. the apparatus is utilizable as a prime mover by coupling it to suitable sources and sinks of heat. <IMAGE>
Patent GB-2143972-A (GB)
Title: Irrigator control system
Inventor: KILKERR WILLIAM
IPC: A01G25/09
Filed: 1983-06-25
Abstract: The invention is concerned with an irrigator of the kind comprising a central pivot having a water supply, an irrigation arm typically extending some hundreds of metres and constituted by a plurality of spans pivoted together and carried on ground engaging driving support towers and means for distributing water from the supply along the arm for discharging it to provide irrigation. A control system for maintaining the spans in substantial alignment comprises an angle sensor incorporating a bar magnet 31 connected to one span and a Hall-effect device 32 connected to the adjacent span and arranged to move longitudinally along the magnet with relative movement between the two spans. An adjustable zeroing signal VO backs off the Hall-effect device output to zero when the two spans are aligned. After amplification in variable gain amplifier 61 the resulting angle signal VS is compared with a reference voltage in comparator 62 which operates a forward drive actuator to bring the spans into alignment when VS exceeds VR. To overcome misalignment in the opposite direction, an inverted signal minus VS is compared with VR in comparator 66 the output from which operates a reverse drive actuator. <IMAGE>
Patent GB-2139897-A (GB)
Title: Vascular grafts with cross-weave patterns
Inventor: MATTERSON SAMUEL ARTHUR
IPC: D03D19/00
Filed: 1983-07-15
Abstract: Graft prostheses are woven with cross-weave patterns to prevent unravelling and to increase suture hold strength. A vascular graft according to the invention is woven as a continuous tube by shuttling a continuous weft thread through a double-layer array of warp threads. As the weft thread is shuttled through the warp pattern, groups of warp threads are retained in parallel relationship to each other while interspersed pairs of warp threads are crossed over each other. This results in graft having normal weave patterns circumferentially alternating with cross-weave patterns.
Patent GB-2129332-A (GB)
Title: Dimensionally heat recoverable article
Inventor: OVERBERGH NOEL MARCEL MICHIEL
IPC: B29C61/02
Filed: 1983-07-25
Abstract: A dimensionally heat recoverable article (1) carrying a thermoplastic polymeric material (5) and a heat-softenable adhesive (4) of smaller thickness and lower softening or melting point than the polymeric material (5) is used to encapsulate objects such as joints in cables. The heat-softenable adhesive (4) allows low installation temperature while the polymeric material (5) allows excellent cycling performance to be maintained.The article may be in the form of a wrap-around sleeve.
Patent GB-2144467-A (GB)
Title: Railway switch
Inventor: LENTON ALAN ARTHUR
IPC: E01B7/04
Filed: 1983-08-05
Abstract: A railway switch comprises a pair of stock rails (1, 3), two movable blades or tongues (5, 7) each associated with a respective one of the stock rails, and a slidably movable stretcher bar (9) for moving the blades between their open and closed positions. In order to avoid splitting of the switch the blades are actuated by the stretcher bar by respective lock arms (13, 15) which are pivotably secured to the blades. The stretcher bar has respective recesses (23, 25) for receiving a head (17) of the respective lock arm and one blade is held open by engagement of the lock arm head in the recess, whilst the other blade is held closed by the lock arm which is urged against an abutment (11) by the stretcher bar and the lock arm is simultaneously decoupled from the stretcher bar and hence the open blade. <IMAGE>
Patent GB-2145750-A (GB)
Title: Pile fabric
Inventor: HAIGH JOHN STEPHEN
IPC: D03D27/00
Filed: 1983-09-01
Abstract: A pile fabric comprises tufts of pile yarn located in a woven backing fabric by means of a carpet tufting machine. The backing fabric is woven from keratinous fibres, for example wool, and subjected to a felting shrinkage treatment whereby to lock the pile yarns in position. The pile yarns can also be keratinous fibres, for example wool, but in this case should be given a shrinkproofing treatment.
Patent GB-2147913-A (GB)
Title: Thermal hydrogenation of hydrocarbon liquids
Inventor: TIMMINS CYRIL
IPC: C07C1/04
Filed: 1983-10-14
Abstract: Methane-containing gases suitable for use as SNG are produced by the non-catalytic thermal hydrogenation of hydrocarbon oils using a hydrogenating gas produced by the partial oxidation of a hydrocarbon followed by swift conversion of the crude partial oxidation gasification product in admixture with steam and the crude product from the thermal hydrogenator. The crude shift conversion product is subjected to compression purification and separation into at least two streams. A first stream containing hydrogen is employed as the hydrogenating gas and the second stream is the methane-containing product gas. <IMAGE>
Patent GB-2141672-A (GB)
Title: Floating barrier
Inventor: BENNION ROGER
IPC: E02B15/04
Filed: 1983-10-24
Abstract: A boom is provided for controlling waterbound polluting petroleum, the boom comprising a plurality of elongate members 101 interconnected in line and substantially parallel with one another so as to allow limited axial movement of the members relative to one another. The members are adapted to float in a substantially upright attitude. <IMAGE>
Patent GB-2149275-A (GB)
Title: Identity card recognition system
Inventor: ALLEN STANLEY GEORGE
IPC: G07C9/00
Filed: 1983-10-26
Abstract: Spread spectrum and parallel processing techniques are employed for rapid identification of proximity type identity cards. An electromagnetic field radiated by an antenna (6) is produced in response to a spread spectrum signal obtained by phase modulation of a carrier signal frequency (f0) with a pseudo-random noise signal (PRN). When an identity card is disposed in the field, passive circuitry in the card resonates at a frequency characteristic of that card, absorbing energy from the field in particular frequency bands and resulting in a modified spread spectrum signal for analysis by a spectrum analyser (8). The analyser includes a plurality of parallel arranged sets of band pass filters (9), each with a respective pass band, amplifiers (10) and signal amplitude level detectors (11). A latch (12) produces a parallel n-bit word from the detector outputs which is indicative of the identity of the card disposed in the field. <IMAGE>
Patent GB-2135076-A (GB)
Title: Eye testing apparatus
Inventor: MAROOF DR ABDUL KARIM HAMID
IPC: A61B3/00
Filed: 1984-01-04
Abstract: Apparatus for eye testing wherein a laser is arranged to produce a speckle pattern on a rotating drum. Light from laser 6 is projected directly onto a diffusing drum 2 (e.g. a hollow drum of glass coated with paraffin wax) which is rotated in direction 4 in front of the patient. The pattern appears to move in a direction and to an extent dependent upon any vision defect of the viewer. The drum may be twisted to examine astigmatism and in order to determine the extent of the defect, either compensating lenses may be employed or the speed of movement of the speckle pattern may be compared with that of an auxiliary variable-speed drum. <IMAGE>
Patent GB-2134375-A (GB)
Title: Shredding machine
Inventor: BAKER GERALD NEVILLE
IPC: A01F29/00
Filed: 1984-02-02
Abstract: Baled material, particularly in cylindrical form 11 is shredded in apparatus mounted on the forward portion of a chassis 2 mounted on wheels 36. Side rails 16 guide and support the cylindrical bales 11 as they are positively fed forward by a horizontal conveyor towards a stop face in the form of a pair of semi-circular divider plates 3 separated by a space through which project cutter blades 7 carried by bars 5. The plates 3 are carried by a rotatable frame 4 within a cylindrical drum 1, which forms an open-ended box into which bales are fed. The frame 4 supports outer bearings for the bars 5. The bars can rotate about the central axis of 16 drum and about their own axis. Shredded material passes out of the drum 1 into a driven auger 13, where it can be mixed with controlled proportions of outer materials such as feedstuff concentrate and/or molasses. From the auger the mixture can be fed to a side delivery conveyor. <IMAGE>
Patent GB-2155619-A (GB)
Title: Rotation measuring devices, tachometers
Inventor: CARLESS DAVID CHARLES
IPC: G01P3/486
Filed: 1984-03-01
Abstract: An optical tachometer or other device for providing information relating to rotating structures, comprises a light-chopping or varying structure 1 coupled or adapted to be coupled to rotating means 2 and an optical fibre arranged for conveying light from a remote light source 5 to the light- chopping or varying structure and for conveying reflected light to a detector 12. The structure 1 comprises alternate absorbing and reflecting portions 4 and may be associated with means to vary the wavelength of the reflected light. Circuitry associated with the detector may determine the frequency or the period of received pulses. The apparatus may be used for angular position measurement. <IMAGE>
Patent GB-2137060-A (GB)
Title: Radiant-Energy Heating and/or Cooking Apparatus
Inventor: HARNDEN JOHN DAVIS
IPC: F24C7/04
Filed: 1984-03-15
Abstract: Radiant-energy heating and/or cooking apparatus includes a unit which utilizes a high temperature heater 11, such as a tungsten filament, and a reflector 14 for directing radiant energy toward a cooking surface. A layer of visible-wavelength radiation absorbing material 18 is provided between the radiant-energy source and the cooking surface, to reduce visible-wavelength radiation viewable by an apparatus system user, while substantially transmitting radiation in at least the near-infrared-wavelength region to foodstuffs to be cooked. The layer of absorbing material may be iron oxide. <IMAGE>
Patent GB-2141310-A (GB)
Title: Secretary telephone system
Inventor: HASHIMOTO KASUO
IPC: H04M1/00
Filed: 1984-06-06
Abstract: In a secretary telephone system for calling a transfer destination telephone set D through given local lines L3, L4 of a telephone set C different from a called party telephone set B upon reception of a call from a calling party telephone set A to the called party telephone set B, the calling party telephone set A can receive a busy signal in response to an output generated from a busy tone detector 3 for detecting the busy tone when the transfer destination telephone set D is set in an off-hook state. Alternatively, when a person at the transfer destination telephone set D does not answer the phone within a predetermined period of time, the busy tone can be sent to the calling party telephone set A in response to an output generated from a timer T arranged in place of the busy tone detector 3. <IMAGE>
Patent GB-2144266-A (GB)
Title: Method of manufacture for ultra-miniature thin-film diodes
Inventor: SORIMACHI KAZUAKI
IPC: H01L29/04
Filed: 1984-06-29
Abstract: A thin-film diode is formed by a semiconductor layer (14) sandwiched between the intersections of and upper (18) and lower (12) electrodes, each of narrow elongated form, portions of an insulating film (19) being disposed between the upper electrode (18) and the edges of the semiconductor layer (14) and the lower electrode (12). The diode is produced by depositing a PIN a-Si layer structure on a conductive layer and patterning to form an elongate strip. An insulating layer is deposited and processed to expose the upper face of the semiconductor strip. A second conductive layer is deposited and patterned to form the upper electrode extending transversely to the strip. The excess semiconductor and insulator is then etched away using the upper electrode as a mask. Variations of the process are described. A pair of diodes connected in inverse parallel may be used as a switching element for a liquid crystal display and occupy a small substrate area due to the self aligned contact. <IMAGE>
Patent GB-2143485-A (GB)
Title: Trailer coupling link
Inventor: RIEHLE HANS
IPC: B60D1/173
Filed: 1984-07-04
Abstract: A trailer coupling link comprises a trapezoidal four-link linkage 2,3,4, used to achieve a virtual centre of rotation displaced forwards in the direction of the centre of gravity of the towing vehicle, one link 2 of the said linkage being arranged so as to be capable of limited pivoting about a longitudinal axis on a flange element 5 which can be bolted on below the trailer drawbar 14, and another link 3 is formed by a housing element 6 mounted on the coupling ball 16 and, with the aid of grooves 21 overlapping projections 22 which extend laterally from the ball neck 15, can be fixed so as to be immovable about the perpendicular axis passing through the coupling ball. The coupling link may be removed to enable a conventional coupling between the towing vehicle and trailer for short and slow journeys. Links 3,4 are connected by ball joints 9. <IMAGE>
Patent GB-2162641-A (GB)
Title: Nuclear magnetic resonance
Inventor: FEENAN PETER JOHN
IPC: G01R33/38
Filed: 1984-07-11
Abstract: Means for providing a magnetic field in NMR apparatus, e.g. for imaging, comprises first and second coils suitably wound on respective formers 1, the second coil being operable to reduce the fringe field produced by the first coil at a predetermined distance outside the sample volume to a predetermined level, e.g. less the 0.0005T at 3-5 metres thereby reducing the space required in a hospital or enabling the apparatus to be mobile by truck. The formers are preferably cylindrical, having circumferential channel compartments for corresponding coil windings connected via niches 6 which may also house superconductive switches. <IMAGE>
Patent GB-2150633-A (GB)
Title: Apparatus for locking a closure
Inventor: DALEY ERNEST CHARLES
IPC: E05C9/04
Filed: 1984-11-30
Abstract: Keepers 1 and 10 are mounted near a jamb of the door, in which jamb the leading edge of the door carrying handle/espagnolette gear is received to lock the door. Using the apparatus embodying the invention, the door can be locked in any one of three additional positions. This provides for the door to be locked open in different ventilating positions without having a sufficient gap between the leading edge of the door and the jamb to permit unauthorised entry. The door is merely slid to the required position and then the espagnolette rods are moved to engage in a desired one of the facing pairs 2, 11, depending on the ventilation gap required. <IMAGE>
Patent GB-2153784-A (GB)
Title: Article handling equipment
Inventor: KEDDY MICHAEL
IPC: B66C1/64
Filed: 1985-01-10
Abstract: Article handling equipment, for example for handling railway rails, has a support structure on which is mounted a gripper 26 for movement relative thereto. The gripper 26 has gripper members 28 pivotally mounted intermediate their ends on a crosshead 30, the upper ends of the members 28 being interconnected by toggle links 32. The members 28 are openable and closeable by a piston-and-cylinder arrangement 34. The arrangement 34 has a piston 56, 58 the rod 58 being connected to the crosshead 30; a cylinder 60 in which the piston 56, 58 is relatively reciprocable; and a cylinder 64 in which a piston formation 62 on the cylinder 60 is relatively reciprocable. The toggle links 32 are connected to the cylinder 64 via a crosshead 52. As the piston 56, 58 and the cylinders 60, 64 float relatively to one another, any tendency of the gripper 26 prematurely to lift the article or to impose strains on the mounting means is reduced or obviated. <IMAGE>
Patent GB-2160817-A (GB)
Title: Improvements in and relating to elastication
Inventor: POMPLUN WILLIAM SEAL
IPC: D06J1/12
Filed: 1985-05-01
Abstract: An article having a thermally-elasticizable strip along a marginal portion is elasticized by directing heated air towards the strip at at least two different angles relative to the plane of the strip and at a velocity sufficient to cause oscillation of the marginal portion bearing the thermally-elasticizable strip; these conditions are maintained for a dwell time long enough for elasticization when cooled to ambient conditions. Apparatus is disclosed which includes a heating chamber through which conveyor means (50, 51) conveys a stack of articles eg. diapers (21). Means for directing the heated air are louvers (60) arranged in three banks (63, 64, 65). Also included are means for circulating the heated air in the chamber. <IMAGE>