baber/WOPTO huggingface dataset:
Patent GB-2261523-A (GB)
Title: Optical filters
Inventor: KELLY CHRISTOPHER JOSEPH
IPC: G02B5/28
Filed: 1986-10-27
Abstract: An optical filter comprises a multilayer coating adherent to a substrate, the coating comprising at least four superimposed layer collections. Each layer collection has ordered first, second and third layers of which the first and third layers are made of a first material and are 0.6 quarter wavelengths thick whereas the second layer is made of a second material and is 6.8 quarter wavelengths thick. One of these materials has a high refractive index in the range 1.9 to 2.5 whilst the other of these materials has a low refractive index in the range of 1.3 to 1.7. The preferred high index material is zinc sulphide and the preferred low index material is thorium fluoride. The optical filter is generally transmissive except in a number of narrow waveband regions which include respective known laser wavelengths.
Patent GB-2188413-A (GB)
Title: Central heating system
Inventor: STUKLEY PHILIP ARTHUR RICHARD
IPC: F24D5/02
Filed: 1987-02-12
Abstract: A fresh air central heating system is described which uses cool air about 28 DEG F to provide house warmth, hot water and filtered air. A heating control unit (14) uses solid state thyristors to control the operation of the heating system. Air is inducted through a duct (10) by a centrifugal fan (5), a washable filter (17) and past an electronic shutter (18). An electric battery heater (12) is coupled to a control panel (14) which in turn is connected to a thermistor. The control unit (14) includes a temperature controller (24) which senses the temperature of the thermistor and which controls operation of the battery heater (12) to heat the inducted air. A frost thermostat (30) can be fitted to the control unit (14) to override the time clock in the event of freezing temperatures. <IMAGE>
Patent GB-2187836-A (GB)
Title: Cooking hob
Inventor: GOODCHILD GRAHAM HOWLETT
IPC: H05B3/74
Filed: 1987-03-09
Abstract: A cooking hob comprises a cooktop 2 with a heating element 3 mounted beneath the underside of the cooktop, the heating element 3 comprising a substrate 8 having a resistive heater track 9 deposited on a surface thereof, and means 10 to provide enhanced thermal contact between the heating element and the underside of the cooktop 2. Said means 10 may comprise a resilient compressible material to compensate for irregularities in the undersurface of cooktop 2, or a rigid metal plate. The cooktop 2 may be glass ceramic or stainless steel. <IMAGE>
Patent GB-2187993-A (GB)
Title: Log gripper saw bench
Inventor: TIMPERON JOSEPH
IPC: B27B29/00
Filed: 1987-03-11
Abstract: Apparatus for supporting logs to be sawn comprises a forward V- shaped support means 3, 5 to be engaged by the underside of a log and a rearward inverted V-shaped support member 4 to be engaged by the upperside of a log then extending through the forward support means. To render the log more safely gripped than hitherto a pivoted gripper arm 7 is provided to engage the top of the log at a position spaced from the rearward support member. Said gripper arm 7 is conveniently guided between said forward support means. One particularly advantageous embodiment is adapted for mounting to the three point linkage of a tractor and comprises an inverted V-shaped mounted member 15 which in conjunction with a transverse member provides a rigid frame work for carrying the support members and the three mounting points. In a free standing embodiment, the bench may be stabilised by a concrete block attached to one of a pair of legs. <IMAGE>
Patent GB-2193051-A (GB)
Title: A coding element for a multi- terminal electrical connector
Inventor: KIRMA SAFA
IPC: H01R13/645
Filed: 1987-07-16
Abstract: Coding of connectors (1, 2) to prevent interconnection of incompatible types is achieved in a readily changeable manner by insertion of a coding element, in the form of a elongate body (13), into at least one of the contact positions (B). If the opposing pin or socket chamber (3, 7, 12, 15) is empty, interconnection of the plugs (1, 2) is possible by plugging of pins 4 into sockets 8 at other contact positions A (Figs. 1, 2), whereas if the opposing chamber is not empty, and contains a terminal (eg 4, Fig. 4) interconnection is not possible. The coding element may replace a pin (as shown), or fill a socket connector (Fig. 5 not shown) to prevent a pin entering the socket. <IMAGE>
Patent GB-2207368-A (GB)
Title: A method of treating containers
Inventor: MASKELL STANLEY GEORGE
IPC: C08J7/04
Filed: 1987-08-01
Abstract: Particulariy high density polyethylene moulded containers, to increase their resistance to environmental stress cracking, comprises forming a coating of a siloxane polymer on at least a major portion of the inner surface of the container. The coating may be formed using an organic silane of the formula (R)3SiCl or (R)2SiCl2, wherein R is methyl, ethyl or vinyl, and the siloxane polymer coating may be formed by hydrolysis of the silane in situ. In use the method may be incorporated in a process for producing blow moulded plastics containers. Such use may comprise subjecting warm containers from moulding apparatus to the defined treatment method.
Patent GB-2211679-A (GB)
Title: Solar powered current supply circuit
Inventor: PATERSON ERIC PAUL
IPC: G04C10/02
Filed: 1987-10-27
Abstract: A supply circuit, particularly for a low current load such as a digital clock 12 or a calculator, has a solar cell 14 to energise the load and to charge a capacitor 18 which provides a backup power supply. The capacitor is a 1 Farad electric double layer "super" capacitor. <IMAGE>
Patent GB-2214477-A (GB)
Title: Inland waterways vessel
Inventor: GOODRIDGE WILLIAM HENRY
IPC: B63B1/04
Filed: 1988-01-27
Abstract: A vessel having sides 1 formed in flat parallel planes comprises a box-like hull with a funnel shaped opening 2 in the front leading to a tunnel 4 enclosing a propellor or turbine to drive the water in jet form along the upwardly-sloped bottom of the vessel channelled between two fins 6. The vessel is intended for inland waterways being free from bow wave and wash. <IMAGE>
Patent GB-2202571-A (GB)
Title: Glazing units
Inventor: GOODALL DAVID RAYMOND
IPC: C03C17/36
Filed: 1988-02-03
Abstract: A double glazing unit comprising an outer pane of body coloured heat absorbing glass and an inner pane of annealed glass with a coating including a silver layer having a thickness in the range 15 nm to 40 nm on its face turned towards the outer pane.
Patent GB-2219144-A (GB)
Title: Securing bearing in electric motor frame
Inventor: WONG CHI NUNG
IPC: F16C23/04
Filed: 1988-05-25
Abstract: An electric motor comprising a frame part 12 mounting a stator and a rotor 17, mounted in bearings eg supported by the frame has one of the bearings (20) held against a seat (30) in the frame by a spring clip (31). The clip comprises an arcuate portion (31a) which bears against a cylindrical portion (28) of the bearing (20) and two arms (31b) which are secured to or held captive relative to the frame. <IMAGE>
Patent GB-2220854-A (GB)
Title: Picture frames
Inventor: CREEPER ADRIAN JAMES
IPC: A47G1/14
Filed: 1988-07-19
Abstract: A picture/photo frame designed to hold a picture or photograph or display material is made from a single piece of card, pre-cut and scored and constructed by folding and held together by tabs and slots. Its technical features allow a person to make frames without using external means of holding it together, i.e. cutting instruments and adhesives. It can be hung on walls or free standing on any of the sides. <IMAGE>
Patent GB-2205428-A (GB)
Title: Stock and cash control systems
Inventor: BOBOWICZ ANTHONY DAVID
IPC: G06Q10/00
Filed: 1988-08-03
Abstract: A stock and cash control system particularly suitable for in-flight sales to air passengers comprises a hand-held portable computer (20) having one mode of operation of a price look-up for "bar sales" by a single depression of a specially labelled key denoting an item in a small product range, and another mode for "duty free sales" by depression of two alphabetic keys corresponding to a two-letter mnemonic for an item in a larger product range denoting that item. The system changes between the two modes upon depression of a "mode" key. <IMAGE>
Patent GB-2227073-A (GB)
Title: Valves for controlling admission and exhaust of pressure fluid
Inventor: GEISOW JOHN CHRISTOPHER HOWARD
IPC: B23D17/06
Filed: 1989-01-13
Abstract: A valve for controlling admission and exhaust of pressure fluid to and from a working space (92) of a fluid pressure actuated device, such as a piston and cylinder device (1, 6, 9) for actuating a pair of lawn shears (30, 31, Figs 6-9) comprises a valve element (19) movable, e.g. linearly slidable within a housing (6) and having a sealing surface (20) in contact with a mating sealing surface (201) of the housing, means (17) for admitting fluid pressure to the housing interior (14), delivery and exhaust passages (13, 16) in the housing sealing surface (201), the valve element (19) being movable by an acuating member (23) passing through the exhaust passage (16) between a first position (Fig 1) in which the delivery passage (12, 13) to the working space (92) communicates with the housing interior (14) and a second position (Fig 2) in which the delivery passage (12, 13) communicates through a passage (22) in the valve with the exhaust passage (16), the valve element (19) being so shaped and arranged that, in all its positions, differential fluid pressure between the housing interior (14) and the exhaust passage (16) presses the sealing surfaces of the valve element and housing together. The actuating member is in the form of a stop pin (23) projecting through the exhaust passage (16) and contacting adjustable stop means (24) to move the valve element (19) relative to the piston rod (6) between its respective positions. In a modification (Figs 10-19), a rotary sliding valve controls a jack. <IMAGE>
Patent GB-2210413-A (GB)
Title: Fuel metering
Inventor: SMITH DARREN ANDREW
IPC: F02B75/18
Filed: 1989-01-23
Abstract: A fuel metering and injection system for an internal combustion engine cirulates fuel through a metering chamber (11) via valved fuel inlet and fuel outlet ports (25, 26) to prepare a metered quantity of fuel. Compressed gas is introduced into the metering chamber through a valved air inlet port (14) to displace the metered fuel and deliver it to the engine. Phasing of the valves is controlled to ensure that the fuel inlet and outlet valves (60, 61) are closed prior to opening of the air inlet valve (16), and that on completion of the injection phase residual gas in the metering chamber (11) is expelled through the fuel outport (26). In the figure admission of gas to the metering chamber is controlled by valve (102) and inlet (106) which open at a higher pressure than it takes to close valves (60) and (61). <IMAGE>
Patent GB-2219808-A (GB)
Title: Heating and damping clothes press
Inventor: RAWLE STEPHEN LEONARD
IPC: A47G25/72
Filed: 1989-05-23
Abstract: A clothes press includes two facing pressing surfaces for pressing clothes, one of the surfaces 4 being heatable. An ultrasonic transducer 8 vapourises water at ambient temperature in a vapour generating chamber 6. A fan 9 mixes the vapour with air and blows it through apertures 14 in one of the pressing surfaces. Heating element 4 may be moved into a cushioning layer. A control circuit activates vapouriser 8 for a few minutes during the heating period. <IMAGE>
Patent GB-2222601-A (GB)
Title: Lubricating oil compositions containing phosphordithioic acid derivatives
Inventor: RIPPLE DAVID EUGENE
IPC: C10N10/02
Filed: 1989-05-26
Abstract: A lubricating oil formulation is described which is useful in internal combustion engines. More particularly, lubricating oil compositions for internal combustion engines are described with comprise (A) a major amount of oil of lubricating viscosity, and at least 2.0% by weight of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) at least one amine compound characterized by the presence within its structure of at least one HN< group, and wherein said substituted succinic acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from a polyalkylene, said polyalkene being characterized by  &upbar& Mn value of about 1300 to about 5000 and an  &upbar& Mw/ &upbar& Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups, and (C) from about 0.05 to about 5% by weight of a mixture of metal salts of dihydrocarbyl phosphorodithioic acids wherein in at least one of the dihydrocarbyl phosphorodithioic acids, one of the hydrocarbyl groups (C-1) is an isopropyl or secondary butyl group, the other hydrocarbyl group (C-2) contains at least five carbon atoms, and at least about 20 mole percent of all of the hydrocarbyl groups present in (C) are isopropyl groups, secondary butyl groups or mixtures thereof, provided that at least about 25 mole percent of the hydrocarbyl groups in (C) are isopropyl groups, secondary butyl groups, or mixtures thereof when the lubrication oil compositions comprise less than about 2.5% by weight of (B). In one embodiment, the oil compositions contain at least about 0.05 weight percent of isopropyl groups, secondary butyl groups of mixtures thereof derived from the mixture of metal salts of phosphorodithioic acids (C). The oil compositions also may contain other desirable additives such as (D) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound and/or (E) at least one carboxylic ester derivative. In one embodiment, the oil compositions of the present invention contain the above additives and other additives described in the specification in amounts sufficient to enable the oil to meet all the performance requirements of the API Service Classification identified as "SG", and in another embodiment the oil compositions of the invention will contain the above additives and other additives described in the specification in amounts sufficient to enable the oils to satisfy the requirements of the API Service Classification identified as "CE".
Patent GB-2236647-A (GB)
Title: Electro magnetic radionic camera
Inventor: BAGE JAMES BARTLEY
IPC: G03G17/00
Filed: 1989-10-03
Abstract: A method of obtaining photographic images of specific portions of the human body or of animals, birds, insects, trees, bushes, flowers, plants, seeds or the like, including psychic phenomena, comprises sensing radiation from a sample of the object with an infra-red sensor 5 from which signals are passed to conductor plates 8, 9 between which a photographic medium is placed. <IMAGE>
Patent GB-2244425-A (GB)
Title: Furniture assembly kit
Inventor: ADAM MIKO
IPC: A47B85/00
Filed: 1990-06-01
Abstract: A set of furniture components includes at least one main component (3) and at least one connecting component (1). The or each connecting component (1) of the set has at least two connecting portions (2), each of which enables that connecting component to be secured to any main component (3) of the set, and the main and connecting components are such that a plurality of different items of furniture can be constructed from a group of at least three such components, which group includes at least one main component and one connecting component. Preferably, the connecting portions comprise respective slots of a width equal to the thickness of each main component, and the main components also have identical slots. Such a set can enable a wide variety of different items of furniture to be assembled quickly and conveniently using a small number of basic standard components. <IMAGE>
Patent GB-2246844-A (GB)
Title: Vehicle with auxiliary drive system
Inventor: HORSFIELD ERIC DEAN
IPC: F16H39/02
Filed: 1990-07-13
Abstract: A vehicle having wheels arranged in pairs has a hydraulic auxiliary drive system for driving one of the pairs of wheels, the system comprising a fixed displacement motor 12 for driving each one of the pair of wheels 6, a variable displacement pressure compensated tandem pump 10 for supplying pressure from each section thereof to each one of the motors 12 and means for controlling the pump to regulate the supply to each motor. The motors 12 are carried on the outer side of the wheels which they drive. The vehicle may be a conventional two-wheel drive vehicle and the auxiliary system may be employed to drive the front wheels thereof. The auxiliary system is preferably automatically activated, in particular, in response to movement of the gear shift lever into first or reverse gear. A signal from a solenoid valve 16 causes isolating valves 14 to move into the drive mode and pass oil from the pumps to the motors. The motors then turn at a rate dependent upon the swash-plate angles of the pumps set by controllers (22) and potentiometers (23) (Fig 3). <IMAGE>
Patent GB-2235540-A (GB)
Title: Evaluating properties of porous formation
Inventor: HOLZHAUSEN GARY R
IPC: G01V1/00
Filed: 1990-08-29
Abstract: The properties of porous material hydraulically coupled to a well through openings in cased or in uncased portions of the well are evaluated by initiating a pressure wave, typically at the well head, so that the pressure oscillations extend to the porous material zone under investigation. Flow of fluid between the well and formation changes the amplitude and frequency content of the oscillations travelling up and down the well, that is, the oscillations are modulated from the form they would have in a like well with no hydraulic communication to the formation. The properties of the formation are derived from these changes by constructing a mathematical model of the formation, calculating flow and pressure oscillations for the model, comparing the calculated flow + pressure oscillations with actual measurements of the flow + pressure oscillations, altering the formation model and repeating the comparison until a best fit to the measured data is found. Alternatively an inversion technique relying on a hydraulically accurate numerical model of the well + formation may be used. A single impulse may be applied to well 10 by rapidly opening and closing well head valve 12 or a forced oscillation may be applied by a pump 16 controlled over a range of frequencies. One or more pressure or flow transducers 20, 22, 24, 26 mounted in the well bore 10 measure the pressure oscillations. Porosity, permeability, storativity (storage coefficient), formation thickness and pore fluid viscosity may be determined. <IMAGE>
Patent GB-2237693-A (GB)
Title: Waveguide coupling networks
Inventor: JOSHI JAI SHANKAR
IPC: H01P5/16
Filed: 1990-10-09
Abstract: In a waveguide input/output network including four waveguide sections 26, each waveguide section extends from its first inlet/outlet aperture to a second inlet/outlet aperture, respective twos of the waveguide sections diverge from a coplanar array formed by the four waveguide sections and the waveguide sections of each of the twos are coupled to each other adjacent the second inlet/outlet aperture region. As described the network receives 16 signals and distributes them substantially between 16 signal outputs including a 16-way network (10, Fig 1) comprising two 8-way networks 14 stacked one on the other with their outputs interconnected by two output networks (24, Fig 3). Each signal path through the network is of substantially the same length and undergoes substantially the same deflections to maintain amplitude and phase coherence. <IMAGE>
Patent GB-2254347-A (GB)
Title: Reinforcement for settable material
Inventor: PATTISON STEPHEN
IPC: E04C5/04
Filed: 1991-01-19
Abstract: A square comprising a border of metal or plastic covered by a tensioned wire at various centres forming smaller squares with square space between them. The square is attachable to other similar squares on all four sides to form chains. These chains may be attached to metal structure; the body serves as reinforcement for concrete, GRP, or plastics. <IMAGE>
Patent GB-2240400-A (GB)
Title: Adhesive testing device
Inventor: PYKE JOHN ARTHUR
IPC: G01N19/04
Filed: 1991-01-24
Abstract: An adhesive testing device includes a movable carriage (2) carrying a substrate (4) to which adhesive is applied by an applicator wheel (32). The carriage is brought to rest opposite an anvil (46) carrying another substrate. The substrates are pressed together and the force required subsequently to separate them measured. In a preferred arrangement the anvil is carried by a beam (48) bearing a strain gauge (60) for measuring the force. The carriage (2) is preferably inverted during its movement to the applicator wheel: this allows it to have its operative surface uppermost initially for ease of application of the substrate. Various parameters (e.g. periods between operations, speed of the carriage, temperature of adhesive and/or anvil) may be varied to simulate conditions in a packing machine e.g. for forming or wrapping cigarette packets. Adhesive may be applied by a spray nozzle. <IMAGE>
Patent GB-2241750-A (GB)
Title: Engine compressor
Inventor: ZECCHINI FRANCO
IPC: F04B39/06
Filed: 1991-02-22
Abstract: An engine compressor comprises an internal combustion engine (2) having a drive shaft (7) for driving a compressor (4) with a head (13) and a cylinder (12). An arrangement (5) for ventilating the head (13) and cylinder (12) for cooling purposes includes; an impeller (38) fitted on to the drive shaft (7); a housing (22) mounted between the casings (6, 8) of the engine (2) and the compressor (4), and defining an internal chamber (37) housing the impeller (38); an inlet (42, 43) formed in a central portion of the housing (22) and through which ambient air is drawn; and an outlet (39) formed in the top portion of the housing (22) and through which air is fed to the head (13) and the cylinder (12). <IMAGE>
Patent GB-2255197-A (GB)
Title: Support unit for audio - visual projector or camera
Inventor: LIGERTWOOD PETER
IPC: F16M13/00
Filed: 1991-04-27
Abstract: A support unit 10 for a box like structure such as an audio-visual projector 11 or camera having an alignment axis A0 comprises a beam 14 with a longitudinal axis L having demountably located at each end a mounting bracket 16, 18 for securing to the box like structure, a carrier 21 for the beam 14 to which the beam is attached by means of a pivot 22 to allow the beam to pivot about a first axis A1 relative to the carrier, the beam passing through an interior region of the carrier, the interior region having a cross section which is complementary to the local external section of the beam so that the region serves to resist rotation of the beam about its longitudinal axis alignment means, such as threaded bolts 25, 26 mounted on the carrier whereby the beam can be positioned by rotation about the first axis A1, a header 35 to which the carrier 21 is attached by means of a second pivot to allow the carrier to tilt about a second axis A2 relative to the header; the second axis A2 being perpendicular to the first axis A1, arms 36, (37, Fig. 2) extending from the header 35 on either side of the carrier 21, a further alignment means, such as a threaded bolt 41, mounted in each arm whereby the carrier 21 can be caused to tilt, in either direction, about axis A2 and thereafter be retained on a second given angular displacement; and a coupling 42, 60 whereby the header 35 is secured to e.g. a mounting plate 50. <IMAGE>