baber/WOPTO huggingface dataset:
Patent GB-2191321-A (GB)
Title: Normaliser circuit
Inventor: HAWKES HENRY WILLIAM
IPC: H03G11/00
Filed: 1987-05-28
Abstract: A normaliser circuit for dividing an AC signal a sin omega t by a reference voltage to give, as quotient, an AC signal whose amplitude is related as a multiple or fraction to the reference voltage comprises a linear detector which receives the initial AC signal, followed by a divider whose denominator is the detector output a and whose numerator is the reference voltage V1 (which may be DC or long-period AC or related to the input amplitude). The divider output is fed to a balanced square-law mixer whose other input is the initial AC signal and whose output is the desired quotient. Preferably there is connected between the detector and the divider additional circuitry (Fig. 2) which limits the minimum input to the divider to the lower limit (V2) of the latter's dynamic range in order to prevent instability. A plurality of such circuits connected in series by amplifiers, (Fig 3), can be used to cover a dynamic range greater than that of a single divider and/or mixer. The circuit may be used to provide limiting without clipping, or, when the reference voltage V1 varies slowly compared with  omega , to change the modulation on the ac signal. <IMAGE>
Patent GB-2206400-A (GB)
Title: Explosive mine
Inventor: LEE DR PETER RAYMOND
IPC: F42B23/16
Filed: 1987-06-09
Abstract: An explosive mine comprises a sensor for detecting the presence of a target in the vicinity of the mine, an ejectable cartridge 3 comprising a charge of high explosive material 5, an ejection charge 25 for ejecting the cartridge from the remainder of the mine, first initiating means 31 for initiating the ejection charge in response to an output from the sensor 29, and second initiation means for initiating the charge of high explosive material after ejection of the cartridge, the second initiation means being in the cartridge and being actuable in response to initiation of the ejection charge, the second initiation means comprising a delay charge 21 extending from a surface of the ejection charge, a booster charge 11 arranged adjacent to a surface of the charge of high explosive material, and an elongate connecting portion 17 of explosive material forming an explosive track from the delay charge to the booster charge whereby initiation of the ejection charge causes ejection of the cartridge and sympathetic initiation of the delay charge whereby, after a predetermined delay by the delay charge, initiation of the charge of high explosive material is effected by the connecting portion and the booster charge. <IMAGE>
Patent GB-2196541-A (GB)
Title: Board game
Inventor: GILBERTS PETER JOHN
IPC: A63F3/00
Filed: 1987-09-18
Abstract: A board game comprises a board having a plurality of equi-spaced holes 12, the holes being arranged in groups of four in a coloured rectangle 14, there being a number of different colours to designate the rectangles and the rectangles being laid out in a pattern on the board. The holes are arranged to receive coloured pegs. The object of the game is for each player to receive a number of coloured pegs and for the player to move the pegs around the board according to values indicated by two dice and the player has to occupy one or more of the coloured rectangles by such movements in order to win the game. <IMAGE>
Patent GB-2201384-A (GB)
Title: Aerodynamic control device
Inventor: RILEY JOHN F
IPC: B64C3/48
Filed: 1988-02-05
Abstract: The present invention provides an aerodynamic control device having a slat (1) located along the leading edge of a wing, the said slat being moveable to any desired position between a first (fully retracted) position and a second (fully extended) position. In use, a gap will be formed between the trailing edge of the slat (1) and the upper skin (3) of the wing as a result of the flexing of the wing and/or the flat under aerodynamic forces; according to the invention, the gap is closed by a seal. The seal can take the form of a pre-stressed trailing portion (5) of the slat which presses against the upper skin (3) to seal the gap and/or the seal can be produced by the upper skin being detached from the rib structure of the wing and being free to move under the influence of the lift-generated during flight towards the slat (1) to close and seal the gap. The front portion of the upper skin (3) may be free to move from a position (3A) at low load to a position (3B) at high load. The slat is carried by a curved track (12) (Fig. 4) supported by rollers (16) on the wing structure, and moved by a jack (18). <IMAGE>
Patent GB-2215184-A (GB)
Title: Baby carrier
Inventor: SHAW JOANNE
IPC: A47D13/02
Filed: 1988-03-01
Abstract: A baby carrier adapted for strapping to the back of an adult, preferably with the facility for conversion into a child's seat (Figs 4 to 7), comprises a frame with generally parallel legs (72, 74, Fig 9) and a U-shaped bridging section 10 inclined to the plane containing the legs, and an apertured fabric 12 folded around the frame to define a pouch for supporting the child with the child's legs extending through the apertures 14 in the fabric, together with shoulder straps 22, 24 and waist straps 26, 28 by which the carrier can be fitted to the back of an adult. When the carrier is converted into a child's seat it may be attached to a handle and trolly assembly to define a pushchair. <IMAGE>
Patent GB-2215490-A (GB)
Title: Control apparatus for submersible vessels
Inventor: WALKER TERENCE DAVID
IPC: B63G8/22
Filed: 1988-03-08
Abstract: A remotely operable submersible vessel (1) including at least one closed ballast tank (6) and an umbilical having a supply line (3) for supply and removal of liquid from the tank (6), a first pneumatic line (4) for supplying pressurised air to said tank and a second pneumatic line (5) which is in communication at its normally lower end with the air space within the ballast tank (6) via an air bleed means (14) which also functions to transmit any ambient water pressure changes to said second pneumatic line (5). Pneumatic pressure-change responsive means (13), in the form of a manometer device or a flexible diaphragm (Figure 3), is settable to "normal" or selected depth pressure at any required submersion depth of the vessel and operates to sense an increase or decrease in tank pressure and in ambient water pressure adjacent the vessel (1). Opposite ends of the device (13) are connected to the line (5), one via a valve (17), the latter being closed when a desired pressure difference has been established across the device (13). Optical diodes (19.19'), (25, 26) detect movement of the manometer meniscus or the diaphram (22) and generate signals which are used to control a liquid discharge valve (9) or liquid supply means (7) located in the supply line (3) at the water surface and serving respectively to discharge or increase the amount of liquid in the tank (6) to maintain the selected depth of submersion. <IMAGE>
Patent GB-2284486-A (GB)
Title: Viewing system
Inventor: HAWKINS JOSEPH CHARLES
IPC: G02B23/08
Filed: 1988-03-23
Abstract: A viewing system such as a panoramic sight for a tank, adapted for operation in both the visible and infra-red wavebands, comprising at least one common optical component 52 which is receptive to both types of radiation and a means 62 for subsequently separating the visible and infra-red radiation, before reaching direct viewing 64 and indirect viewing apparatus 66. <IMAGE>
Patent GB-2204666-A (GB)
Title: Ball-valve seat ring
Inventor: MOONEY DAVID RALPH
IPC: F16K39/06
Filed: 1988-05-03
Abstract: A seat ring (10) for a ball valve has a radially-inner deflectable lip and at least one pressure-relieving passageway (32) connecting an outer face (14) with a ball-seating face (24). Axial passageways (34) may also be provided. <IMAGE>
Patent GB-2219155-A (GB)
Title: Electrical motor drive system
Inventor: DAVIES REX MANSFIELD
IPC: H02P25/02
Filed: 1988-05-14
Abstract: A polyphase induction motor IM is controlled by a Hidden Link Converter the cyclic switching of which is not synchronised to the shaft rotation or the motor. <IMAGE>
Patent GB-2205574-A (GB)
Title: A process for preparing nonionic surfactants from glycerol monochlorohydrin and hydroxylated compounds; and compositions containing the surfactants
Inventor: SEBAG HENRI
IPC: C09K23/42
Filed: 1988-06-03
Abstract: Process for preparing polyglycerolated nonionic surfactants from (poly)hydroxylated organic compounds, by condensing glycerol monochlorohydrin with the said (poly)hydroxylated compound in the presence of a strong base, at a temperature below 150 DEG  C. and in the presence of an aromatic solvent, removing the water formed by distillation as it forms. This process makes it possible to condense a relatively large quantity of glycerol monochlorohydrin in a single step, while limiting the formation of polyglycerols, and to obtain a good quality surfactant which is usable in cosmetic compositions.
Patent GB-2225705-A (GB)
Title: Riding coat
Inventor: GODDARD SHEILA MAY
IPC: A41D3/02
Filed: 1988-12-09
Abstract: A riding coat of the kind having a portion intended, in use, to cover the rear of a saddle, characterised in that the portion includes a seam formed as a quick release fastening of the mating filamentary hook-and-eye kind, the arrangement being such that, with the fastening opened, there is defined in the coat an opening or vent extending upwards from the hem of the coat. Preferably the opening is closed by means of a triangular gusset 3 having the fastening along both inclined edges thereof. The arrangement obviates accidents if the coat tail becomes entangled with the saddle during dismounting. <IMAGE>
Patent GB-2226470-A (GB)
Title: Encoding,decoding and processing pixel values for storing and reproducing a digitised image in expanded format
Inventor: RICHARDS NORMAN DENNIS
IPC: H04N7/30
Filed: 1988-12-23
Abstract: A method of processing a first series of values representing a row of pixels of a digitised image comprises:   (i) differentially encoding the first series of pixel values to generate a first series of codes (70) representing a first series of differential values; (ii) expanding each code (70) of the first series into a group of codes to form a second series of codes, each group of codes representing a plurality (72,74) of differential values whose sum is the differential value represented by the corresponding code (70) of the first series; and (iii) decoding the second series of codes to generate a second series of pixel values for display.   By transmitting or recording the first series of codes and then effectively dividing each received or reproduced differential value into two or more smaller differential values, known apparatus can be made with little modification to expand each line of a received image by a factor of two or more, depending on the number of codes in each group. The extra pixel values generated will be at least approximately linearly interpolated values. This allows improved moving pictures to be reproduced from an optical disc, for example.
Patent GB-2228169-A (GB)
Title: Fishing line tightener
Inventor: WILSON KENNETH WILLIAM
IPC: A01K91/06
Filed: 1989-02-21
Abstract: A fishing line tightener, has a body 22 which is shaped for attachment to a fishing rod. Incorporated in the body is a line guide 23 through which the fishing line is threaded. Variable friction is exerted on the fishing line by turning a threaded spindle 24 which raises or lowers the line guide. A fixed or retractable friction arm 27 for contacting the line is attached to the body, which arm if retractable can be raised to make a cast and then lowered to exert preset friction on the fishing line. The progress of a float in moving water is retarded by the amount of friction exerted on the fishing line. A channel 28 in the body holds the line guide vertical with markings on the body to indicate the position of the line guide in the body. <IMAGE>
Patent GB-2224679-A (GB)
Title: Machine tool table incorporating a work holder
Inventor: MITSUMORI KAZUMASA
IPC: B23Q3/02
Filed: 1989-04-24
Abstract: A magnetic or other chuck 7 for carrying work 11 thereon is provided in an embedded manner in the surface of a table 6 mounted on a machine tool for back and forth movement relative to a grinding wheel 4. The weight of the moving assembly including the table can thus be reduced, and the spacing between the surface of the table and the grinding wheel can be used effectively. <IMAGE>
Patent GB-2224666-A (GB)
Title: Coupling for pressure or vacuum fluid system
Inventor: HUNTER GEORGE SHERWOOD
IPC: F16M1/00
Filed: 1989-08-07
Abstract: A coupling is provided for a pressure or vacuum fluid system having a bowl and filter head (10, 26) that connect together by relative rotation to engage bayonet coupling formations (32, 34, 94) thereof. When connected together the bowl (10) and filter head (26) have outer walls (16, 104) overlapping with an intervening seal (22) therebetween. A pressure relief valve (38) is provided in one of the members (10). A latch (36, 108) engages at an angular position of said members (10, 26) where the bayonet coupling is established to prevent relative rotation of said members (10, 26) and is prevented from engagement at other angular positions. The latch (36) is decoupled from the valve (38) when in its engaged state but is operatively coupled to the valve (38) when in a disengaged state to open said valve (38), fluid flow therethrough providing an audible warning when a pressure differential exists across the valve (38).
Patent GB-2231263-A (GB)
Title: Use of neutral protease as activator for damaged neurocytes
Inventor: FUJISAKI SHIGEMI
IPC: A61P25/28
Filed: 1989-12-21
Abstract: An activator for damaged neurocytes for the prevention and treatment of disease which contains a neutral protease or a mixture of a neutral protease and one or more other proteases or Pronase. Preferred neutral proteases are produced by microorganisms of the genus Streptomyces, Serratia or Bacillus and are presented as oral or parenteral preparations.
Patent GB-2236660-A (GB)
Title: Device for easing the donning of garments
Inventor: GORDON JOHN YEATS
IPC: A41D13/00
Filed: 1990-02-05
Abstract: The device 12 is a pouch made from a material having a low coefficient of friction. The device may be releasably attached on the inside of a garment just below the entrance to the legs or sleeves. Thus, e.g., in the former case when the wearer's foot is inserted into the leg of the garment, the device 12 breaks away facilitating the quick sliding of the foot down the trouser leg. The invention also relates to a garment fitted with such a device, in particular an abandonment suit. <IMAGE>
Patent GB-2240872-A (GB)
Title: Process and an apparatus for the treatment of liquid organic waste
Inventor: ASPART ALAIN
IPC: G21F9/06
Filed: 1990-02-12
Abstract: Into the reactor (1) containing concentrated sulphuric acid (5) are introduced the liquid waste to be treated (by 7) and nitric acid or hydrogen peroxide (by 11) at flow rates such that in the reactor there is a carbonization of the liquid waste introduced by the sulphuric acid and an oxidation of the carbon and SO2 formed during the carbonization by simultaneously regenerating the sulphuric acid. A continuous measurement takes place of the optical density of the liquid medium (5) for stopping the liquid waste supply or controlling flow through 11 when the C content of the liquid medium exceeds a set value. The liquid waste can be an organic solvent such as tributyl phosphate contaminated by radioactive elements. <IMAGE>
Patent GB-2242301-A (GB)
Title: Display device
Inventor: MILNE SIMON SCOTT
IPC: G09F1/04
Filed: 1990-02-24
Abstract: The device shown in the drawing has four sides 1, 2, 3, 4 of card, hinged by creasing at corners 5, 6, 7, 8 and cut from a single web of card. A tab 9 is provided at the hinge 8 for connecting the sides 1 and 4 by means of the tab being glued to the inside surface of the side 1. This side has an aperture 10 for a lens 11. The lens is an acrylic moulding with a flange 12 via which it is adhered to the inside surface of the side 1 at the aperture 10. The inside surface of the side 3 opposite the lens has information I printed on it. This information is too small and compressed to be read by the naked eye, but can be read when magnified by the lens. Typically the lens will provide seven times magnification. The information can be cartographic and in an embodiment, two adjacent sides may bear such information in the form of a map on one side and a gazeteer on the adjacent side, whilst the two opposite sides have lenses for viewing of the map and the gazeteer. The sides of the device may be flexed for focusing. <IMAGE>
Patent GB-2242703-A (GB)
Title: Spark plug electrodes
Inventor: LENK MICHAEL
IPC: H01T13/39
Filed: 1990-04-04
Abstract: The spark plug comprises an outer shell (1), a central electrode (2), an insulator (3) surrounding the central electrode (2) and at least one ground electrode (4B) connected at at least one point to the outer shell (1). At least one (4B) of the electrodes consists of an outer layer made of a corrosion resistant material (e.g. nickel or a nickel alloy) and of an inner core made of a material having good thermal conductivity characteristics and a good corrosion and erosion resistance (e.g. silver or a silver alloy). In front of the bottom end of the other electrode (2), i.e. at the spark gap (5) the inner core projects through the outer layer perpendicularly to the longitudinal axis of said one electrode (4B). Several embodiments of the spark plug as well as several methods for making the electrodes of the spark plug are described.
Patent GB-2243912-A (GB)
Title: Evaluation of static pressure downstream of a normal shock in hypersonic flight
Inventor: BRAILSFORD EDWARD NOEL
IPC: G01P5/175
Filed: 1990-05-10
Abstract: A device for installation in an aircraft for determining gas-state parameters for air downstream of a normal shock for hypersonic flight speeds. These are speeds where true-airspeed is in excess of Mach number = 4. The device comprises a total air-temperature sensor 11, a total air-pressure sensor 12, a processor 13, a display 17 and a control-unit 18. The processor includes an input/output unit 14, a central processing unit 15 and an electronic memory 16, storing data relating to properties of air and to parameter relationships dependent upon total air-temperature and total air-pressure. Based upon the sensed parameters and stored data, the processor calculates the static pressure, the value of which enables quantities to be evaluated that are important for piloting and control of the aircraft. These quantities are output to a pilot display 17 and to a control-unit 18. <IMAGE>
Patent GB-2322928-A (GB)
Title: Swing wing assembly for missiles
Inventor: GIESENBERG PETER
IPC: F42B10/20
Filed: 1990-05-16
Abstract: In a missile containing a number of swing wings made of sheets of spring steel the sheets contain a closed cavity into which pressurized gas can be infed. In one embodiment the sheets 18, 20 of the swing wing directly forms the closed cavity. The swing wings are connected at their base to the missile body via respective swivel joints 22. Each swivel joint comprises a pressurized gas cartridge 28 constituting the pressurized gas source for inflating the swing wing. In a second embodiment (figs 3,4), the cavity is formed by pressure tubes within the wing. Instead of a pressurizing gas, a settable liquid may be used. The missile maybe self-propelled or ballistic.
Patent GB-2235056-A (GB)
Title: Motor driven camera having strobe incorporated therein
Inventor: KITAZAWA TOSHIYUKI
IPC: G03B15/00
Filed: 1990-07-19
Abstract: A strobe incorporated camera having two drive motors 12, 15, a strobe main condenser 16 and a battery 17, wherein the first drive motor 12 is located in a rotatable film winding spool of the camera, and the second drive motor, the strobe main condenser and the battery are located to surround the film winding spool, so that the longitudinal axes thereof extend in the direction of the rotational axis of the film winding spool. The centers of the two drive motors, the strobe main condenser and the battery in a plan view substantially form an imaginary quadrilateral or an imaginary triangle. <IMAGE>
Patent GB-2249886-A (GB)
Title: A power reducing device for ceiling fans
Inventor: LEE CHIN TARN
IPC: H02P25/04
Filed: 1990-11-19
Abstract: A power reducing device for reducing an AC power supply of voltage V1 to a lower voltage V2 for a fan with a motor (M). The power reducing device is a capacitive circuit (SW1) serially connected between the AC power supply of voltage V1 and the motor (M), the device having a plurality of switching positions respectively corresponding to open-circuit states of this device and to different capacitance values. <IMAGE>
Patent GB-2252507-A (GB)
Title: Apparatus for playing a game
Inventor: HARVEY NIGEL MARTIN
IPC: A63F3/00
Filed: 1991-02-08
Abstract: Apparatus for playing a game comprises a board (10; Figures 1 and 2) of generally pyramidal form. The surface of the board may be provided with markings by virtue of which a game based upon climbing may be played utilising the board. In a preferred embodiment the board (10) comprises a plurality of generally flat triangular portions (12) disposed in succession around a centre to afford respective sides of said pyramid, and successive such portions are at least substantially hingedly connected together along their adjacent generally radial edges such that when opened out to lie at least substantially flat, in total they subtend an angle, at said centre, of less than 360 DEG , whereby when the exposed generally radial edges (24, 26) of the first and last portions of said succession are brought together into contact or near contact with each other, the board adopts a pyramidal configuration. <IMAGE>
Patent GB-2255850-A (GB)
Title: Low tyre pressure indicating device
Inventor: HUANG TIEN-TSAI
IPC: B60C23/00
Filed: 1991-05-15
Abstract: The device is adapted to be directly connected to the valve stem of an automobile tyre to indicate a low pressure condition and comprises a bulb 514, a cell device 511 and compression spring switch assembly 42 uniquely responsive to a low pressure condition in the tyre for operating the switch assembly thereby connecting an electrical circuit to energize the bulb 514. The switch assembly is actuated by a diaphragm 3 which is disposed over a partition 101 having a central through-hole. Disposed in the through-hole is a screw assembly having a threaded bolt 80 and a head 801 with a concave portion whose periphery abuts the diaphragm. The screw assembly is hermetically and adjustably inserted in the through-hole and can be adjusted in advance to light the bulb 514 when a selected pressure is detected. <IMAGE>
Patent GB-2256371-A (GB)
Title: Golf club having a guiding device mounted thereto
Inventor: HO CHIN-LUNG
IPC: A63B69/36
Filed: 1991-06-04
Abstract: A golf club has a ball receiving device (11) mounted on the shaft portion (10) of the golf club, and a guiding device (20) which includes a transparent hollow ball (21) retained by the ball receiving device (11) and containing a quantity of liquid that forms a positioning bubble (23) inside the transparent hollow ball (21). The transparent hollow ball (21) is provided with markings (211). The golf club is adjustably inclined so that the positioning bubble (23) can be moved to a desired position relative to the markings (211), with the desired position corresponding to a preferred golf club striking position of a golfer. <IMAGE>