baber/WOPTO huggingface dataset:
Patent GB-2221010-A (GB)
Title: Hinged sleeve for the lining or joining of conduits
Inventor: CAMPBELL LAWRENCE A
IPC: F16L55/163
Filed: 1989-06-28
Abstract: A sleeve for lining the inner wall of a circular conduit comprises a cylinder of flexurally deformable metal or plastics material with at least one hinged connection along its length and the hinged connection is in the form of a toggle whereby the sleeve can be placed in a relaxed position in the conduit and the toggle is then strengthened to press the sleeve tightly against the inner wall. The sleeve may alternatively be used to join conduits. The conduit may carry fluid or cable. <IMAGE>
Patent GB-2235053-A (GB)
Title: Identifying an electrical cable
Inventor: ROBERTS WILLIAM ELWYN
IPC: G01R31/02
Filed: 1989-07-25
Abstract: For identifying a multi-core cable, an electrical signal is introduced (1) between the cores of the cable at one location and the varying magnetic field about the cable is detected (7, 10) at a second location. As shown, coils (9) on an annular clamp (8), sense fields produced by a pulse and generator (1). A non-linear passive load (not shown) may be connected to a live cable to cause harmonics to be generated for sensing purposes (the pulse generator then not being required). <IMAGE>
Patent GB-2224493-A (GB)
Title: Sheet transfer device
Inventor: THUENKER NORBERT
IPC: B41F21/05
Filed: 1989-09-28
Abstract: In a printing machine sheets are transferred from a front lay position to a feed drum by means of gripper fingers 8 on a cam (2)-operated arm 1. The gap between the fingers and pads 11 is adjusted to suit sheet thickness by screw adjustment (28-32) of eccentric bushing 27. 
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Patent GB-2226331-A (GB)
Title: Electrochemical regeneration of metal oxide after use for oxidative treatment of waste
Inventor: STEELE DAVID FRAME
IPC: C02F1/467
Filed: 1989-10-17
Abstract: In a method of oxidation of a substance such as polychlorinated biphenyl waste by treatment with a metal oxide selected from the group consisting of ruthenium, osmium, iridium, and rhodium in the higher valency state, after oxidation of the substance the metal oxide is regenerated to the higher valency state by electrochemical means.
Patent GB-2238412-A (GB)
Title: Exit signalling device
Inventor: BONE RICHARD
IPC: G08B5/36
Filed: 1989-11-21
Abstract: A beacon includes an illuminable exit sign of the type used in cinemas and the like. The exit sign contains a smoke detector and an audible alarm. In use the beacon is fitted above an exit from a building or craft, and arranged so that when the smoke detector is activated by smoke, for example in the event of a fire in the building, the alarm will sound and will guide people towards that exit even if the exit is obscured by smoke.
Patent GB-2240592-A (GB)
Title: Hydrodynamic shaft seals
Inventor: GREGORY CHRISTOPHER CLIVE GORT
IPC: F16J15/32
Filed: 1990-01-24
Abstract: A hydrodynamic shaft seal is formed by through moulding a base section (3) of elastomeric material through holes (5) in a PTFE lining section (4). When the seal is located about a shaft relative rotation of the seal results, because of the differing coefficients of friction of the liner section (4) and the base section (3), in a hydrodynamic pumping action. <IMAGE>
Patent GB-2230192-A (GB)
Title: Prosthetic interpositional device/coupler
Inventor: CROWNINSHIELD ROY DOUGLAS
IPC: A61F2/32
Filed: 1990-03-15
Abstract: A prosthetic interpositional device/coupler (10) designed to be interposed between the neck (7) and head (4) of a prosthesis such as a femoral prosthesis (1). One example of a contemplated environment of use of the coupler (10) is in connection with a prosthesis having a neck of one material and a head of another material. The coupler (10) may be made with an outer wall (15) having a taper designed to match the internal taper of the head (4) and with an inner wall (17) having a taper designed to match the taper of the neck (7). These tapers may differ. Additionally, the inner and outer surfaces (15, 17) may have different surface textures from one another so as to make the respective wall compatible with the surface texture of the material of which the adjacent structure, head or neck, is made. In a first embodiment the coupler (10) consists of a tapered sleeve having open ends. In a second embodiment (Figure 4), which may be longer than the first embodiment, the coupler (10') has an end wall (21). A third embodiment is similar to the second embodiment except that the end wall is much thicker than the end wall in the second embodiment so that the device is greater in length. 
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Patent GB-2242756-A (GB)
Title: Antireflection coating
Inventor: FARRIES MARK CUNNINGHAM
IPC: G02B1/11
Filed: 1990-04-03
Abstract: An antireflection coating comprises a first transparent layer which is not stable and a second layer, covering and protecting the first layer, of a transparent chemically and physically stable material. The thicknesses of the layers, relative to their respective refractive indices being chosen so that the coating comprises a quarter wavelength filter at a predetermined wavelength(s). The layer thicknesses may be measured and more deposited or some etched away to give the desired thickness. The first layer may comprise HfO2 and the second layer may be SiO2. The antireflection coating may be on the windowed 16 end facet 14 of a semiconductor optical amplifier 10 e.g. a buried ridge laser. <IMAGE>
Patent GB-2231032-A (GB)
Title: Containers formed from blanks
Inventor: ALEXANDRON JEAN-MICHEL
IPC: B65D5/18
Filed: 1990-05-03
Abstract: A blank made of cardboard, corrugated cardboard or other sheet material includes front and rear panels 13A, 13B joined along base fold lines 12A, 12B to a bottom panel 11. At least one of the front and rear panels 13A, 13B has a tongue 15A, 15B extending beyond a joint line of the front and rear panels 13A, 13B, the tongue being suitable for forming a decoration. The blank can be folded along the base fold lines 12A, 12B with the front and rear panels 13A, 13B joined at the join line to form a container 10. <IMAGE>
Patent GB-2253349-A (GB)
Title: Female condom
Inventor: HESSEL LASSE
IPC: A61F6/06
Filed: 1990-07-11
Abstract: A tubular protective device for protection against transfer of infectious matter during sexual intercourse and for use as a contraceptive comprises a flexible, thin walled tube having a sufficiently large diameter to permit movement of a penis within the tube during coitus. The flexible thin walled tube also has a closed end and an open end. The open end has a ring-like member 3 integrally connected to the open end. The protective device further comprises a means 5 for retaining the closed end of the tubular device in a vagina for a user. <IMAGE>
Patent GB-2235590-A (GB)
Title: Planar antenna
Inventor: GOTO NAOHISA
IPC: H01Q13/18
Filed: 1990-08-07
Abstract: An inner-feed-type planar antenna of single-layered structure excited by an axially symmetric mode for propagating radio waves from the center toward the outer periphery within a propagation layer having an antenna surface. The antenna is provided with a plurality of coupling slots 20A, 20B formed and arrayed in one surface of an axially symmetric mode waveguide member 12, 14 in such a manner that the coupling factor of the external radiation is high at the outer periphery and becomes successively lower as the center is approached, and a terminating slot 24, comprising a spiral- slot 24 or ring-shaped slot (32, Fig 17, 106, Fig 26 a-c) provided in the antenna surface at the terminus of the axially symmetric mode waveguide member. A region not coupled with the outer protion is provided at the center of the antenna surface. Furthermore, the planar antenna is provided with a reflector member 22(50, Fig 17) arranged along the terminating slot for reflecting a propagating radio wave between the inner and outer portions of the axially symmetric mode waveguide member. The antenna may be used for receiving or transmitting. <IMAGE>
Patent GB-2237330-A (GB)
Title: Wind motor or hydraulic turbine
Inventor: VANNAN JOHN NICOLL
IPC: F03B17/06
Filed: 1990-10-08
Abstract: A machine for utilising the energy in fluid flows comprises a support (21), Fig 9, and central drive shaft (22), Fig 9, connected to a support arm 23, each arm 23 carrying at least one vane (24), 25, 26, (27), Fig. 11. The vanes can pivot on bearing rods (28), Fig 12, and may be flexible so that they can present the most advantageous profile to the fluid flow as the support arms rotate about the central drive shaft 22. More than one such machine may be situated in a pipe (37), Fig 27, through which fluid flows. <IMAGE>
Patent GB-2240958-A (GB)
Title: Handrail drive system for passenger conveyor
Inventor: YASUHARA YOSHIHITO
IPC: B66B23/04
Filed: 1991-02-19
Abstract: A conveyor for transporting people includes a transmitting mechanism for transmitting the drive force of a treadboard driving section for moving treadboards to a drive mechanism of a hand rail driving section for moving handrails. The transmitting mechanism includes a transmission shaft (22) on which first and second sprockets (9a, 9b) are fixed, a first drive chain (8) stretched between the treadboard driving section and the first sprocket (9a), and a second drive chain (10) stretched between the second sprocket (9b) and the hand rail drive mechanism. A detecting device (40) is arranged to detect a twist of the transmission shaft attributable to the difference between loads acting on the first and second sprockets (9a, 9b). The device detects a change in the moving speed of the hand rail in accordance with the detected twist of the shaft. On detection of a twist in the shaft (22) a signal may be given to an alarm or to stop the drive of the conveyor. <IMAGE>
Patent GB-2241890-A (GB)
Title: Preventing onset of or treating protein catabolism using an ace inhibitor
Inventor: TSCHOLLAR WERNER
IPC: A61K38/55
Filed: 1991-03-07
Abstract: A method is provided for preventing onset of or treating protein catabolism in hypertensive or normotensive patients and thereby preventing loss of muscle mass in such patients by administering an ACE inhibitor, especially one containing a mercapto moiety, such as captopril or zofenopril, as well as fosinopril.
Patent GB-2243899-A (GB)
Title: A torsion damped double flywheel for an internal combustion engine
Inventor: NAUDIN JACKY
IPC: F16F15/131
Filed: 1991-04-24
Abstract: A torsion damped double flywheel for an internal combustion engine in a motor vehicle comprises a first inertia mass (1) which includes a hub (8), and a second inertia mass (10) which is mounted on the hub (8) by means of a first bearing means (9). The second inertia mass includes a secondary flywheel (11) carrying a friction clutch (90), and at least one torsion damper (70) which couples the first and second inertia masses (1, 10) together. The first inertia mass (1) includes a support (100) which is secured to the engine output shaft (80) by first fastening means (110), together with a primary member (300) which is arranged to be fastened to the support (100) by second fastening means (120). The primary member (300) is secured to the hub (8) of the first inertia mass (1), and is also coupled to the torsion damper (70), so as to form a preassembled, unitary assembly with the first inertia mass (10), the torsion damper (70) and the friction clutch (90). <IMAGE>
Patent GB-2244217-A (GB)
Title: Artificial ligaments
Inventor: GOODFELLOW JOHN WILLIAM
IPC: A61F2/08
Filed: 1991-05-22
Abstract: An artificial ligament (10) has a bundle of coextensive elongate elements (11) held at their opposite ends in a mutual one-to-one relationship with the relative disposition of the individual elements at one end of the bundle corresponding generally with that at the other end, each element otherwise extending between its ends substantially freely of other elements of the bundle. The elements are suitably held by individual threading through respective perforations of grill members (13) to pass into securement in associated tubes (14). Preferably the bundle has a sheath, wrapping, distinctively coloured element (11a) or other feature to indicate visually the relative rotational disposition of the bundle between its ends.
Patent GB-2244719-A (GB)
Title: Manufacturing method of base material particles with porous surface
Inventor: KITAZAKI KURAKI
IPC: B29C43/00
Filed: 1991-06-05
Abstract: A core material (e.g. powder or wire) of higher melting point (e.g. Cu) is coated (e.g. by electroless deposition) with a lower melting point layer (e.g nickel compound or Ag), the coated material is formed as a coating layer on the substrate and is then heated to between the fusing points of the core and coating layer to give a porous surface layer (e.g. for use as an ebullition heat transfer surface).
Patent GB-2248448-A (GB)
Title: Lightweight gypsum product and apparatus for manufacturing the same
Inventor: HUGHES ROBERT WATT
IPC: C04B14/18
Filed: 1991-09-18
Abstract: A gypsum product comprises lightweight porous filler and hydrated calcium sulphate. The filler used is preferably pumice, has a dry bulk density of less than 550 kg/m<3> and comprises 50% or more of the volume of the product. A process for producing the gypsum product comprises adding the filler to a slurry of calcined gypsum and water. The filler is preferably added in the damp or dry state. Apparatus for forming a building board from the product comprises a mixer 10 with a screw conveyor / mixes 14. Inlets 16, 18, 20, 22, 24 are provided for water, foam, calcined gypsum, accelerator and filler, respectively. The mixture is extruded on to carrier paper 28 and passes beneath roller 30 to yield a board, which may comprise a top paper 32. <IMAGE>
Patent GB-2250607-A (GB)
Title: Device for wiping of materials, particularly photographic film
Inventor: WILSON COLIN JOHN
IPC: G03D15/02
Filed: 1991-09-30
Abstract: A device for wiping material, particularly a length of photographic film, comprises a support with a handle (10) having two arms (13, 14) and two material wiping elements (16, 18) carried by the respective arms for positioning by said arms in parallel relationship. spaced apart in the direction in which the material (24) is intended to be moved relative to the device between said wiping elements. The off-set wipers prevent particles scratching the film which can happen if the wipers are opposite each other. The device can also be used to clean discs, records, window blinds, shelves and filters. <IMAGE>
Patent GB-2250348-A (GB)
Title: Integrated sensor-transducer device and pressure sensor-transducer
Inventor: NETO CARMINO SCIAMMARELLA
IPC: E21B47/06
Filed: 1991-12-05
Abstract: An improved integrated sensor-transducer device and an improved pressure sensor-transducer, particularly suitable to operate in the measurement of the temperature and pressure of a fluid that passes through fluid extraction well head equipment. The invention permits such parameters to be measured through a single orifice in the said equipment and reduces substantially the volume of the external wiring. The invention also provides a pressure sensor-transducer that eliminates the possibility of leakage of the fluid being extracted in the case of damage to the sensor, apart from avoiding corrosion thereof. Such objects are obtained by providing an integrated sensor-transducer that is particularly suitable for operation together with fluid extraction equipment, for measuring determined parameters of the fluid, including a rigid housing (1) having an output connector (11) and in the interior of which a temperature sensor-transducer assembly (4, 5) is arranged which comprises a temperature-electric signal converter (4) electrically connectable to said output connector (11), characterised by a pressure sensor-transducer assembly (6-9) also arranged within said housing (1); and by comprising an elongated chamber (8) divided by a sealing element (7) into a first sub-chamber filled with a neutral fluid, and a second sub-chamber adapted to be filled with the fluid being extracted, said sealing element (7) being axially shiftable within the chamber (8) so that the pressure of the fluid being extracted may be transferred to the neutral fluid, and a pressure-electrical signal converter (9) also electrically connectable to the output connector (11) and situated in contact with the neutral fluid. In addition, the invention may be embodied in the form of a pressure sensor-transducer operable together with fluid extraction equipment, characterised by comprising an elongated chamber (8) divided by a sealing element (7) into a first sub-chamber filled with a neutral fluid and a second sub-chamber adapted to be filled with the fluid being extracted, said sealing element (7) being axially shiftable within the chamber (8) so that the pressure of the fluid being extracted may be trasferred to the neutral fluid, and a pressure-electric signal converter (9) arranged in contact with the neutral fluid.
Patent GB-2256941-A (GB)
Title: Power lens and camera system
Inventor: KAWASAKI MASAHIRO
IPC: G03B17/14
Filed: 1992-05-21
Abstract: A lens drive apparatus comprises a motor 65, (39 - Figure 1) for driving a lens moving mechanism to move a movable lens unit, a power supplier 63, (37) for selectively continuously (i.e. using direct current) or discontinuously (i.e. using pulses) supplying the motor with electrical power, a detecting device 69, (41) for generating detection signals in association with the operation of the motor at predetermined intervals each corresponding to a predetermined displacement thereof, a speed setting device for setting the operational speed of the motor using a time interval corresponding to the output of the detecting device, and a supply control device for shortening the discontinuous supply time by a predetermined time unit when the detection signals are outputted within the time interval, and for lengthening the discontinuous supply time by a predetermined time unit when no detection signal is outputted within the time interval, respectively. The apparatus may be used for a power zoom and/or autofocus system in a camera system. The supply control device keeps the motor speed constant. The direct current supply may be used for braking the motor. Absolute positions of a group of zooming lenses and a group of focusing lenses are detected by respective code plates (Figures 4, 5). <IMAGE>
Patent GB-2261032-A (GB)
Title: Gas turbine blade with skin and core construction
Inventor: MAKITA HARUOMI
IPC: F04D29/38
Filed: 1992-08-04
Abstract: A rotor blade for a gas turbine has a shaped core 5 which is accommodated within a space formed between two outer skins 1 and this core is joined to the skins by diffusion bonding or brazing. To enhance the fatigue strength and enable stress levels in the skins to be reduced, the inner surfaces of said skins are provided with island-shaped protrusions 1a, and said core is joined to the skins via these protrusions. The enhanced strength and reduced stress levels enable the sheet thickness of the skins to be reduced with a consequent saving in weight. The core may be dimpled, corrugated or honeycomb in form. <IMAGE>
Patent GB-2259830-A (GB)
Title: Picture resolution enhancement with dithering
Inventor: WILLIS DONALD HENRY
IPC: H04N7/00
Filed: 1992-11-09
Abstract: A dither signal is added to an n-bit video signal. The adder (376) should include a limiter to avoid overflows. The samples are truncated after the addition. The least significant two bits are simply discarded. A dither signal which can provide significant improvement in a subsampled signal is a two frequency dither in which the higher frequency has the higher amplitude. The dither signal can have any repetitive sequence of the numbers 0, 1, 2, 3 in any order within said sequence, for example, 0, 2, 1, 3, 0, 2, 1, 3, ..., etc. The quarter-frequency component is usually more objectionable than the half-frequency component. A dedithering scheme can be chosen to suppress only the quarter-frequency component. A first signal path is for delay and amplitude matching. A second signal path includes a combination inverted bandpass filter and limiter. The inverted bandpass filter (818, 820) cancels the frequency at the center of the pass band when added to the delay and amplitude matched original signal, The limiter (816) assures the only amplitudes of dither size will be cancelled. <IMAGE>
Patent GB-2274580-A (GB)
Title: Brush holder
Inventor: MOORE KEVIN RONALD
IPC: A46B17/02
Filed: 1993-01-28
Abstract: A brush holder 1 hooks over the rim 8 of a container 9 and provides a platform 7 to hold a brush while temporarily not being used. The angled platform 7 slopes downwards inside the container 9 to allow any excess liquid to drip back in. Two stems 5 inside the rim 8 act as hooks to prevent the brush holder from falling away thereby causing the two wings 4 to embrace the outside of the container 9 and create purchase. The two stems 5 also push against the inside of the container 9 and prevent the holder from toppling inwards. The toothed wall 6 at the lower end of the platform 7 stops the brush from slipping while allowing the liquid through. A bracket 3 underneath the platform 7 creates the slope required. <IMAGE>
Patent GB-2281413-A (GB)
Title: A photographic reflector
Inventor: KEAN BRENDA
IPC: G03B15/03
Filed: 1993-07-28
Abstract: A photographic reflector 15 for use with a bounce-head flash unit 18 to produce indirect light comprises a one-piece sheet of material which is provided with an integral reflective surface on at least a portion of one side thereof. The sheet is creased to enable it to be folded into an internally reflective hood and means are provided to enable it to be secured to the flash unit. The hood is shaped so that it can provide a reflective surface angled between 30 DEG  and 60 DEG inclusive but preferably at 45 DEG  with respect to an upper light-emitting surface of the flash unit when secured thereto. <IMAGE>
Patent GB-2293416-A (GB)
Title: Liquid fuel bipropellant rocket engine
Inventor: SACKHEIM ROBERT LEWIS
IPC: F02K9/50
Filed: 1991-04-18
Abstract: A high-performance liquid fuel bipropellant high-thrust rocket engine using pure hydrazine as the fuel comprises: a pure hydrazine supply, including a supply tank, fuel line and fuel supply valve; an oxidant supply, including a supply tank, oxidant line and oxidant supply valve; a combustion chamber 30 having coaxial inlets 32', 38' for the hydrazine and the oxidant, connected to the fuel and oxidant lines; and means for delaying closure of the fuel supply valve until after closure of the oxidant supply valve, to ensure that combustion is completed in the combustion chamber, thereby minimizing unwanted combustion after shutdown of the engine. <IMAGE>
Patent GB-2272917-A (GB)
Title: Topsheet for use in disposable body fluid absorptive goods
Inventor: IGAUE TAKAMITSU
IPC: D04H1/542
Filed: 1993-11-29
Abstract: A topsheet for use in body fluid absorptive goods comprises an upper sheet 7 having a skin-contacting area 14 and liquid passages 13 and a lower sheet 8 underlying the upper sheet 7 and defining cavities 20 therewith. The lower sheet 8 is welded to the upper sheet 7 around lower openings 12 of the respective liquid passages 13 so as to restrict deformation of these passages which would otherwise possibly occur. The lower sheet 8 is of melt-blown fibres and the upper sheet 7 may comprise two layers of melt-blown fibres or may be of thermoplastic film. <IMAGE>
Patent GB-2285578-A (GB)
Title: Beverages containing added guaranine
Inventor: LEA LEILANI
IPC: A23L2/52
Filed: 1993-12-22
Abstract: Caffeinated or decaffeinated beverages, e.g. tea, coffee, chocolate or cola drinks, contain added guaranine. The guaranine may he added in pure form or as seeds or extracts of the Paullinia Cupana plant (Guarana). The consumer has increased energy, vigour, alertness etc. Optional vitamins or herbal extracts may further included in the beverages e.g. Vitamin B.