baber/WOPTO huggingface dataset:
Patent GB-2157669-A (GB)
Title: Exploiting metal deposits of low concentrations
Inventor: MORPER DR MANFRED
IPC: C22B3/18
Filed: 1985-04-09
Abstract: The metal to be recovered is maintained in an aqueous solution in dissolved or suspended form; biodegradable organic compounds and optionally nitrogen compounds and phosphorus compounds are added to the aqueous solution; thereupon, the aqueous solution is brought into contact with anaerobic sludge; and the anaerobic sludge, after having been charged with the metal, is dewatered and fed as product to a conventional metal recovery processing stage.
Patent GB-2162840-A (GB)
Title: Sterospecific process for preparing azetidinones
Inventor: CAINELLI GIANFRANCO
IPC: C07F7/18
Filed: 1985-06-18
Abstract: Chiral azetidinones II (R1 optionally substituted phenyl, R2 = C1-C4 alkyl or aryl, R3 = H or an N-protecting group) are prepared by reacting compound III (R4 = carboxy protecting group) with an organometallic derivative and treating the resultant dianion with a compound IV. The azetidinones II are stereospecifically prepared by the above process and may be converted to azetidinones VIII (R5 = hydroxy protecting group), useful in the preparation of penems.   <IMAGE>
Patent GB-2161309-A (GB)
Title: Apparatus for illuminating a liquid crystal display
Inventor: JEWELL MICHAEL B
IPC: G02F1/1335
Filed: 1985-06-24
Abstract: Apparatus for back-lighting a liquid crystal display comprises a light-distributing plate (11) arranged to receive light through a side edge (40) and to distribute this light out through a front face (9) of the plate (11). The side edge (40) is shaped to collimate the light which is then scattered through the front face (9) of the plate (11) by surface roughness provided on the rear face (7) of the plate. The surface roughness forms a scattering surface (7) which is arranged to have portions that are progressively closer to the plate front face (9) with increasing distance from the light source; this arrangement enables a more even distribution of light to be obtained across the front face (9) of the plate (11). The surface roughness may be progressively increased or the plate thickness reduced with distance from light. <IMAGE>
Patent GB-2167211-A (GB)
Title: Article recognition and handling system
Inventor: MCCORMACK WILLIAM
IPC: B65G47/24
Filed: 1985-10-18
Abstract: A succession of articles e.g. casting to be fettled, presented at random and of random orientation is identified in turn and orientated to a predetermined configuration by a system which not only obtains an image in the form of a silhouette from which are derived a number of dimensional parameters which are compared in a computer with the stored parameters from known classes of article but also a weight parameter is included. The articles may be turned over from one stable position of repose to another for identification and/or for final positioning by pushing them over a stop 10 onto a adjustable height platform 4. Robot 11 may then remove correctly orientated and identified articles for appropriate treatment as required for each class of article. <IMAGE>
Patent GB-2165762-A (GB)
Title: Neck support
Inventor: HELFET ARTHUR JACOB
IPC: A61F5/055
Filed: 1985-10-18
Abstract: A neck support comprises inflatable members (1, 2, 3, 4) which provide lateral support to prevent the head tilting sideways and support for the chin to prevent the head tilting forwards. In one embodiment a plurality of inflatable members is provided and in another a single inflatable member is sub-divided into a plurality of intercommunicating compartments. <IMAGE>
Patent GB-2169935-A (GB)
Title: Retaining device for a covering strip
Inventor: GIBSON COLIN FREDERICK
IPC: E04F19/04
Filed: 1985-11-22
Abstract: A retaining device 2 (22, Fig. 5) for a covering strip such as a skirting board 1 or architrave (21, Fig. 5) comprises a member 3 adapted to be secured to a structure such as a wall 5 or a door frame (17, Fig. 5) and cooperating means 4 (24, Fig. 5) adapted to cooperate with the covering strip to retain it on the member. This arrangement enables the covering strip to be retained in position relative to the structure. <IMAGE>
Patent GB-2170922-A (GB)
Title: Light beam switching prism having mirrored faces
Inventor: GREENHAM ADRIAN CLEMENT
IPC: G02B7/182
Filed: 1985-12-13
Abstract: A light-switching pentaprism designed to switch light from a fixed source into one or another direction, has a first position in which the light leaves the pentaprism at 90 DEG  to its input direction, and a second position in which an additional input face 10 is directed towards the light source, the light entering that face 10 then effectively passing straight through the prism and emerging from an additional output face 11 in its original direction. Faces 10,11 may be curved or planar. Faces 6,7 are mirrored. <IMAGE>
Patent GB-2169710-A (GB)
Title: Process and apparatus for measuring the distance between a target and a sensor
Inventor: AZPIROZ PIERRE
IPC: G01B7/02
Filed: 1985-12-23
Abstract: According to this process, a perturbation of the potential in a triangular wave signal supplied directly to the sensor is detected. The apparatus comprises a resonant series circuit supplied by an oscillator, a comparator and a source of stabilised supply, characterised in that the oscillator (0) supplying the sensor (1) is a triangular wave oscillator connected to a power amplifier (10) directly supplying the sensor (1) and arranged to produce an output potential signal having a perturbation when the impedance of the sensor varies and comprising a three-input logic circuit (9) and a resettable monostable circuit (12). By the use of a complementary pair transistor amplifier (10) having a strapped-emitter output, the triangular waveform has flat portions where it passes through a potential equal to one-half the peak value. If the approach or recession of a magnetisable target (C) detunes the sensor (1), the flat portions are advanced or retarded relative to the triangular wave. <IMAGE>
Patent GB-2346764-A (GB)
Title: Radio systems
Inventor: AVARNE SIMON
IPC: H04J13/00
Filed: 1986-04-04
Abstract: A frequency hopping MFSK radio system performs initial synchronisation by transmitting (2) a synchronisation sequence on known channels, at least some of which carry known symbols. The receiver 4 detects what is received during each symbol period on a selected channel, which, in one embodiment, is maintained constant over a number of symbol periods. The reciever maintains a table of probabilities, each of which pertains to a possible time offset in the synchronisation sequence from an arbitrary point.(For example, if the synchronisation sequence has a length of L symbol periods, then L probabilities are stored, one for each possible offset.) For each possible offset, the receiver determines the probability that what has been received during the current symbol period is consistent with that offset being the correct one for synchronisation. (The probability is never zero because of noise.) The table of probabilities is updated cummulatively after each symbol period using Bayes theorem. Once a particular offset attains a threshold probability close to 1, then synchronisation to within a symbol period is achieved.
Patent GB-2175803-A (GB)
Title: Seat cushion
Inventor: SCHAERER EMIL A
IPC: A47C7/72
Filed: 1986-05-16
Abstract: The seat cushion comprises a plurality of elevations forming a surface structure and which at least partially define cavities, of which at least some serve for the incorporation of, in each case, one permanent magnet, with the permanent magnets being arranged homopolar. <IMAGE>
Patent GB-2177120-A (GB)
Title: Improvements in and relating to metal coated carbon gouging rods
Inventor: SLATER JOHN MICHAEL
IPC: C23C4/02
Filed: 1986-06-18
Abstract: A method of protecting a carbon or graphite gouging rod against oxidation comprises the steps of heating the surface of the rod to a temperature of between 150 DEG C and 400 DEG C and spray coating the heated surface with a layer of molten aluminium by means of an arc spray torch or gun, for example an oxy-gas or electric arc spray torch.
Patent GB-2180474-A (GB)
Title: Device for removing bubbles
Inventor: SUZUKI RYUSHI
IPC: B01D19/00
Filed: 1986-07-17
Abstract: A device for removing bubbles from a liquid comprises a plurality of elongate, cylindrical bubble-collection bodies 2. One end of each body has one or more tangential inlet apertures 8 and a liquid inlet space 5 is defined around the said one end of the bodies. The one end of the bodies is closed by a cover 4 in which a plurality of gas outlet openings 11 is formed each communicating with a respective bubble-collection space in a body 2 and with a common gas outlet space 10. The other ends of the bodies communicate with a common liquid outlet space 9 and flow resistance means 16 downstream of the bodies induces a back pressure greater than 0.05 kgf/cm<2> in the liquid flowing through the device. <IMAGE>
Patent GB-2179978-A (GB)
Title: Fire seal for a cavity wall
Inventor: NEWMAN LEWIS CLIVE
IPC: E04B1/94
Filed: 1986-09-03
Abstract: An elongate articulated fire seal comprising longitudinally-extending layers of an intumescent material 1 and a fire-resistant synthetic foam material 2 contained in a flexible tubular casing 3 of sheet material is insertable into a flexible guide tube 8 introduced into the cavity 4 of a cavity wall 5, 6 of a building, whereby in the event of a fire the intumescent material 1 of the fire seal will expand to compress the foam material 2, the tubular casing 3 and the flexible guide tube 8 into sealing contact along the length of the guide tube 8 with the walls 5, 6 defining the cavity 4. <IMAGE>
Patent GB-2182225-A (GB)
Title: Time base corrector with memory mapped system control
Inventor: WESOLOWSKI JAN S
IPC: H04N9/896
Filed: 1986-10-16
Abstract: A time base corrector is comprised of a plurality of system function modules 30, 32, 34 implementing the functions for time base correcting an analog composite color video signal with a stable reference video signal. The system function modules obtain control data and communicate status data to a system control through a plurality of module function registers 36, 40, 44 located in each module. The module function registers are connected to and selectable by a system bus 28 of a microprocessor. The microprocessor has the module function registers mapped as addresses in its memory space to provide an architecture for communication and control of each function module by the system control. <IMAGE>
Patent GB-2202157-A (GB)
Title: Card games
Inventor: LAYFIELD CHARLES WILLIAM
IPC: A63F1/00
Filed: 1987-03-05
Abstract: Apparatus for playing a game based on the game of snooker includes cards indicative of the potting of red, yellow, green, brown, blue, pink and black balls, and cards indicative of a foul stroke. The foul stroke cards may indicate fouls on the various colours, and the deck may include at least one "free ball" card, a miscue card, and total 52 cards. The game may be played by shuffling the deck and drawing cards in turn to indicate the course of play each player continues the 'break' provided red-colour card sequence is maintained. Apparatus includes scoring device e.g. conventional cribbage board. <IMAGE>
Patent GB-2203681-A (GB)
Title: Producing a die-cast composite artefact
Inventor: STROMMEN GUNNAR
IPC: B22D19/00
Filed: 1987-04-24
Abstract: A composite die-casting operation, which is exemplified by reference to production of a parabolic aerial (1). A parabolic metal plate (2) is placed between a movable die member (5a) and a stationary die member (5b) in a die-casting machine (4), the die members having a pressure face (6) and a counter pressure face (7), respectively, which are complementary to the final shape of plate member (2). Members (5a, 5b) are moved towards each other to hold plate member (2) and rear structure (3) is cast on to the rear side of plate member (2) and with a shape corresponding to recesses (7a) in counter pressure face (7). By the aid of perforations (2a) in plate member (2), and recesses (6a) in member (5a) the casting metal is made to flow into said recesses fixing said rear structure (3) to plate member (2). The plate member (2) may initially be a planar disk which is bent to dished shape between the die members and also has the necessary perforations punched therein. <IMAGE>
Patent GB-2207047-A (GB)
Title: A hair clip
Inventor: LEUNG CHONG CHI
IPC: A45D8/24
Filed: 1987-06-23
Abstract: A hair clip comprises a body (10), a first gripping member (11) provided on the body, a second gripping member (12) hingedly mounted at one end (14) on the body and co-operable with the first gripping member to grip hair, and releasable fastening means (15) provided for fastening together the other end (16) of the second gripping member and the body. The first gripping member and the body are formed as an integral plastics moulding. The second gripping member is hingedly mounted between a pair of ears (18) integral with and upstanding from the body. The second gripping member is resiliently deformed about and bears against abutments (26) on the ears when fastened to the body. <IMAGE>
Patent GB-2202574-A (GB)
Title: Cordgrip
Inventor: ROBERTS SIMON
IPC: E06B9/324
Filed: 1988-02-08
Abstract: A cordgrip particularly for cords which control the raising and lowering of "Austrian" blinds which comprises a housing 10 having walls 12, 14, 16, 18 defining a passageway for the cords. A pawl 28 having a cord engaging edge 34 is mounted in the housing. The paw is movable in one direction towards a wall 18 of the housing so as to trap a cord between the edge and the wall 18 and movable in the other direction to release the cord. As shown the paw is pivoted at 32 to the housing. <IMAGE>
Patent GB-2215739-A (GB)
Title: Ionisation assisted chemical vapour deposition
Inventor: UNIVERSITY OF HULL HE
IPC: C23C16/517
Filed: 1988-03-26
Abstract: The substrate 5 to be coated is supported within a vacuum chamber 1 comprising a thermionic filament 7, an anode 8 and means 2 and 3 for introducing gas into the chamber 1 and venting gas from the chamber 1, and the thermionic filament 6 and the substrate are negatively biased with respect to the plasma generated thereby producing an intensified plasma which acts as a source of ions and/or neutrals which bombard the substrate. <IMAGE>
Patent GB-2217590-A (GB)
Title: An ottoman
Inventor: COHEN MARTIN
IPC: A47C7/62
Filed: 1988-04-22
Abstract: An Ottoman having at least two cushions (12, 14) fittable securably on the lid of the Ottoman and padded side members (16, 18) covering its side walls. The Ottoman is proportioned so that each cushion fits snugly into its interior, the lid thus being usable as an occasional table. Two trays fit secure on the lid, the cushions having a portion of reduced cross-section, which is fittable into a tray. <IMAGE>
Patent GB-2220576-A (GB)
Title: Dismantleable golf clubs
Inventor: ROBINSON IAIN JAMES
IPC: A63B53/00
Filed: 1988-07-15
Abstract: A golf club comprises three separate sections, the grip 4, the shaft 7 and the head 10, the sections being releasably joined by screw, bayonet or friction connections. A collection of heads, shafts and a grip constitute a set of clubs which can be dismantled for transport in a small case. <IMAGE>
Patent GB-2221480-A (GB)
Title: Demountable multi-unit staircase and platform
Inventor: HAYWARD JOHN
IPC: E04F11/025
Filed: 1988-08-03
Abstract: A fire escape structure consists of multi-unit interconnected demountable staircase 2 and platform 3, 4 assemblies. Each assembly consists of a plurality of units bolted together, the members of each unit preferably being cold rolled from high tensile alloys e.g. steel. Load bearing members in a unit of each assembly are preferably formed from cold rolled open E-channel sections, vertical load bearing members 10, comprising two such sections secured together e.g. by welding along their longitudinal edge portion to produce a hollow member. <IMAGE>
Patent GB-2214407-A (GB)
Title: Article of hosiery and method of producing same
Inventor: HOLT COLIN
IPC: A41B11/14
Filed: 1988-09-08
Abstract: A panti-hose is manufactured from a pair of leg portions 20 each of which is cut along an inclined line (22, Fig. 4), the cut edges (22', Fig. 5) thus produced being joined together to form a respective seam 25 on the front and back which extends generally diagonally from a crotch portion to a side of the panti-hose. Each leg portion 20 is also provided with a false seam 23 which (in the finished article) is disposed symmetrically relative to a seam 25 about a centreline 26 of the panti-hose. This avoids the need for an unsightly seam running straight up the panti-hose from the crotch portion. A gusset 28 may be fitted. <IMAGE>
Patent GB-2213454-A (GB)
Title: Hydraulically powered hoist
Inventor: COY DAVID
IPC: B66D3/18
Filed: 1988-12-07
Abstract: A hydraulically powered hoist including a hydraulically powered motor 18 having a drive shaft connected to lifting means for raising and lowering the load, a hydraulic control circuit for controlling supply of hydraulic fluid to said motor, controlled by valve 22 movable from a stop position to either a raise position or a lower position and such that when the valve is in the stop position hydraulic fluid is both prevented from being supplied to or drained from the motor and a brake for braking rotation of the shaft in the lowering direction, the valve being operatively connected to said brake so as to release it before actuating the control circuit to supply hydraulic fluid for lowering said lifting means. <IMAGE>
Patent GB-2226719-A (GB)
Title: Automatic gain control system
Inventor: GAY MICHAEL JOHN
IPC: H04M1/60
Filed: 1988-12-22
Abstract: An AGC system providing a control signal for controlling the gain of an amplifier (4) receiving its power from a power supply (1) regulated by a shunt regulator (3), comprises detecting means (R1, T2, T4) for producing a detection signal in response to current flowing in the shunt regulator (T1) and integrating means (C2) responsive to the detection signal for producing the control signal representative of the ratio of periods of conduction and non-conduction of the shunt regulator. <IMAGE>
Patent GB-2213181-A (GB)
Title: Shifting tool for subsurface safety valve
Inventor: VINZANT MICHAEL BURL
IPC: E21B34/10
Filed: 1989-02-28
Abstract: A flapper-type surface controlled subsurface safety valve for use in a well tubing string an operator tube 40 for opening the valve closure member 31 and holding it open and a lockout sleeve 50 mounted in tandem with the operator tube 40 for movement simultaneously with the operator tube 40 to a position at which the lockout sleeve 50 holds the valve 31 open. The operator tube 40 and lockout sleeve 50 are engageable by a shifting tool 70, to operate the operator tube 40 and lockout sleeve 50 simultaneously. The shifting tool 70 includes selective keys 76 which engage a recess in the operator tube 40 and separate expandable latch dogs 100 which engage the lower end of the lockout sleeve 50 for simultaneous coupling of the operator tube 40 and the lockout sleeve 50. The tool 70 has a housing 72 and core 71 which is initially fixed by shear pins 75 in a position allowing retraction of the keys 76 and dogs 100. After shearing of pins 75 the core 71 is moved downwardly to lock keys 75 and dogs 100 in their expanded position as shown. <IMAGE>
Patent GB-2235253-A (GB)
Title: Ceramic guide vane for gas turbine engine
Inventor: HAYTON PAUL ROBERT
IPC: F01D9/06
Filed: 1989-08-16
Abstract: Ceramic nozzle guide vanes 22 for a gas turbine engine are each provided with an integral ceramic shroud member 28 having upstream and downstream sections 30, 32 which are in contact with the engine turbine casing solely at upstream and downstream extremities thereof. Cooling air channels are provided between the shroud members 28 and the turbine casing. Split sealing rings 66, 68 are provided circumferentially of the shroud members to seal any gaps between adjacent shroud members. A rod 52, having a channel 54 is provided radially through each vane 22 and its shroud member 28 to allow for the passage of cooling air between a region outside the turbine casing and a region radially inwards of the vane. Ring seals 44, are provided at the radially inner ends of the vanes. <IMAGE>
Patent GB-2225861-A (GB)
Title: Monitoring major metallic elements in molten metallurgical materials
Inventor: FRAY DEREK JOHN
IPC: G01N27/406
Filed: 1989-12-05
Abstract: The concentration of an element in a molten metallurgical phase (3) is measured by applying an electrical potential across two electrodes (1, 2) separated by a solid electrolyte (7) containing cations of the element to be measured immersed in the melt, and measuring the current flowing between them. The solid electrolyte is preferably of beta -alumina or zirconium silicate or phosphate.
Patent GB-2231195-A (GB)
Title: Thermal power generation by electrically controlled fusion
Inventor: ASPDEN HAROLD
IPC: G21B3/00
Filed: 1990-02-13
Abstract: The process by which deuterons adsorbed into a palladium cathode combine to generate heat energy is enhanced under the control of an electrical current flowing around an all-metal circuit including the cathode. This current is an A.C. current very much greater than the ionic anode-cathode current involved in deuteron adsorption. It causes adsorbed deuterons to excite fusion-triggering vacuum energy fluctuations when traversing field boundaries inside the cathode in the presence of a strong electron counterflow. Deuterium may be absorbed into the cathode by electrolysis or by corona discharge. <IMAGE>
Patent GB-2244333-A (GB)
Title: Depth gauge
Inventor: MUSTAFA MAHIR MOSS
IPC: G01B3/56
Filed: 1990-05-14
Abstract: A gauge 1 for measuring the depth or width of a crack, eg in a weld, in a substrate comprising a body 4 providing a datum 5 for resting on the substrate adjacent a crack 2, an angular measure 6, which is on the body 4 and a probe 7 mounted on the body 4 by mounting means 8, the arrangement being such that the probe 7 can be extended on the mounting means 8 relative to the body 4 at an angular displacement measured by the angular measure 6 whereby to provide a reading in use of the depth or width of a crack. <IMAGE>
Patent GB-2232802-A (GB)
Title: Multiplex addressing of ferro-electric crystal displays
Inventor: HUGHES JONATHAN RENNIE
IPC: G02F1/133
Filed: 1990-05-16
Abstract: A ferro-electric liquid crystal display is multiplex addressed by strobe waveform applied in sequence to each electrode in one set of electrodes coincidently with a data waveforms applied to a second set of electrodes. Liquid crystal material in the display is switched by a d.c. pulse of appropriate polarity, amplitude and time. The strobe waveforms have first and second pulse pairs, each pulse pair comprising two pulses of different amplitude and the same or different sign. The pulse pairs are similar but of opposite sign. Data waveforms are rectangular waveforms of opposite sign. The amplitude and ratio of leading pulse to trailing pulse in each strobe pulse pair are adjusted to obtain the desired switching and contrast. Compensation for temperature changes is arranged by measuring the temperature of the liquid crystal material and using the value obtained to adjust the amplitude value of the leading pulse in each strobe pulse pair.
Patent GB-2238306-A (GB)
Title: Highly conductive magnetic material
Inventor: MORI TOSHIHIKO
IPC: H01F1/33
Filed: 1990-09-04
Abstract: A highly conductive magnetic material useful for a magnet or a magnetic core for an electromagnet is obtained by molding copper or a copper alloy having ferrite dispersed therein.