baber/WOPTO huggingface dataset:
Patent GB-2260775-A (GB)
Title: Two-step method for horizontal gravel packing
Inventor: FORREST JAMES K
IPC: E21B43/04
Filed: 1991-10-21
Abstract: A method is disclosed for placing gravel within an annulus formed in a non-vertical borehole by the placement of a screen within the borehole. First, a slurry of gravel, polymer, and oil field brines is injected into the annulus to control fluid leakoff, pack the perforations, and pack from 50% to 75% of the screen-borehole annulus. Then a slurry of gravel and water is injected into the annulus until the annulus is completely packed. <IMAGE>
Patent GB-2260971-A (GB)
Title: A vent plug for an enclosure
Inventor: SENTER JOHN THOMAS
IPC: H05K5/02
Filed: 1991-10-29
Abstract: A vent plug 10 for an enclosure 12 comprises two nested insert members 13, 14 defining a tortuous duct by which air can pass into and out of the enclosure but contaminants, such as water, are prevented from entering the enclosure. Insert member 12 nests within insert member 14 and each insert member may include a helical groove 13c, 14c forming part of the duct and directing air flow in two opposite directions A and B. A cross bore 14e in the inner member connects the interior of the enclosure to the groove 14c, while recesses 15 connect the exterior to groove 13c, the grooves being connected via notches in the end surface of side wall 13a, (13d, Fig 2a). The plug may push fit or snap fit in the enclosure opening and the enclosure may contain electrical or electronic circuitry for an internal combustion engine. <IMAGE>
Patent GB-2253441-A (GB)
Title: Liquid ring pump having a rotating liner.
Inventor: HAAVIK HAROLD K
IPC: F04C19/00
Filed: 1991-11-15
Abstract: In a liquid ring pump having a rotating liner inside a stationary housing for helping to reduce fluid friction losses, at least one end, and preferably both ends of the liner are partly closed to more completely contain the liquid ring in order to further reduce fluid friction losses; furthermore there are means for introducing a bearing liquid into the clearance to provide a liquid bearing for the liner relative to the housing. <IMAGE>
Patent GB-2257856-A (GB)
Title: Data output buffer
Inventor: LEE SEUNG-KEUN
IPC: G11C11/409
Filed: 1992-03-10
Abstract: A data output buffer includes a data driving circuit composed of pull-up transistor 10 for responding to a first signal and pull-down transistor 11 for responding to a second signal, first control circuit 12 for regulating the slope of the first signal to be less steep after reaching the threshold of the pull-up transistor than before reaching the threshold of the pull-up transistor, and second control circuit 13 for regulating the slope of the second signal to be less steep after reaching the threshold of the pull-down transistor than before reaching the threshold of the pull-down transistor. Therefore, noise generated by the transition of the output signal of the data output buffer is reduced without affecting operating speed. A modification to the control circuits 12 and 13 is described (fig. 6). <IMAGE>
Patent GB-2254975-A (GB)
Title: Apparatus and method for detecting wind direction
Inventor: KEENE WAYNE H
IPC: G01P13/00
Filed: 1992-03-26
Abstract: A laser radar system for measuring wind velocities includes apparatus for permitting the system to measure the direction of the atmospheric flow field. A modulator 50, 24 is used to chirp the laser 10 frequency toward increasing frequencies. The converging laser beam 60 from a vertically directed telescope 30 is passed through a rotating cylinder 36 having a horizontal lower face and an inclined upper face so that the beam 50 is refracted to make an angle with the vertical direction. The cylinder 36 is rotated about its vertical axis so that the refracted beam 60a, 60b traces out a horizontal circle (70, Fig. 2) with its focal point. Reflection from aerosols in the locus of the focal point pass back through the rotating cylinder 36 to the telescope 30. The local oscillator frequency 62 available for homodyning 48 will be offset from the initial transmitted frequency by an amount equal to the chirp rate multiplied by the round transit time to the aerosols at the focal point of the converging laser beam 60a, 60b. During the up-ramped chirps of the optical beam frequency, the Doppler shift frequency of aerosols moving toward the laser beam 60a will be transmitted to a lower frequency, and the Doppler shift frequency of aerosols moving away from the laser beam 60b will be frequency translated upward. <IMAGE>
Patent GB-2263604-A (GB)
Title: System for distribution of switched voice and video on cable
Inventor: ORTEL WILLIAM C G
IPC: H04N7/16
Filed: 1992-07-09
Abstract: A system for voice distribution amongst a plurality of telephone subscriber locations operating on a broadband cable network that can also carry video has an RF transmitting and RF receiving channel for carrying voice and signalling information established at each subscriber location, and has a central switch, and the system also has means for adjustment of the level of the signal and voice information on the RF transmitting channel and the RF receiving channel of each subscriber location at one or both of a central switch and the subscriber location. The adjustment may be selective and is made by attenuation at the switch 1200A - 1200N (1301X - 1301Y, Fig 13), and/or subscriber (1100, 1102, Fig 12) locations. A control signal for adjusting attenuation is developed in a traffic sensitive control circuit 1201. The system has a higher signal-to-noise ratio for the voice channels than systems without such attenuation. <IMAGE>
Patent GB-2257637-A (GB)
Title: Golf putting device.
Inventor: DUNKLEY SIDNEY
IPC: A63B57/00
Filed: 1992-07-13
Abstract: A golf putting device comprises a frame (32) adapted to stand on a surface and to define a smooth path through the frame, and ball-capturing means attached to the frame and adapted to hold a golf ball struck at the device. The ball-capturing means may comprise brushes (35), arranged singly or as a continuous strip, or a pivotable flap. The frame (32) can be held in place on the ground by pins (34) through posts (30, 31). <IMAGE>
Patent GB-2260669-A (GB)
Title: Method for transforming color signals and apparatusfor the method
Inventor: IKEGAMI HIROAKI
IPC: G06T1/20
Filed: 1992-10-15
Abstract: Method and apparatus for transforming color signals in order to reproduce a tone on an original document faithfully, and an apparatus for executing the method. As illustrated by Figure 1 the color signals transforming method comprises the steps of dividing each of three input signals representative of colors into the higher bits and the lower bits, combining the higher bits to form basic data, combining the higher and lower bits to form interpolation data, and adding the basic data and the interpolation data to each other, thereby forming output signals, in which the hexahedron of an object to be interpolated is divided into six tetrahedrons (see Figs 1, 2) each passing through one of eight lattice points constituting the hexahedron of the interpolated object, and the different combinations of interpolation data are assigned to the tetrahedrons in one-to-one correspondence manner. <IMAGE>
Patent GB-2279874-A (GB)
Title: Vacuum body massager
Inventor: AGYEPONG SAMUEL
IPC: A61H9/00
Filed: 1993-07-14
Abstract: The massager has a container housing a motor 7 and fan 14 for generating a vacuum and a tube 5 leading to a flexible hose 3 and massage head 2. The latter has a smooth surface which may be lubricated to reduce friction. A short tube 10 leads from the other side of the fan compartment to an air vent 11. The fan may have curved blades and is so arranged as to expel air through the tube 10. In a hand-held model (Fig. 8 - not shown), the flexible hose may be omitted. <IMAGE>
Patent GB-2269948-A (GB)
Title: Gas discharge lamp dimmer circuit
Inventor: PERCIVAL JAMES ALAN
IPC: H05B41/392
Filed: 1993-07-23
Abstract: An energy saving dimming system for driving one or more gas discharge lamps 14 together with their ballasts 13 and starters 15, from an A.C. supply 16 has a series switch 1, which is on immediately before zero crossings of the voltage waveform of the AC supply 16 and turns off substantially at such zero crossings, and a short flywheel switch 12 turned on and off in antiphase relative to switch 1. Dimming is achieved by increasing the duration of the ON period of switch 12 in each AC supply voltage half cycle and reducing the ON period of switch 1 until such periods are equal. Further dimming may be achieved by opening switch 1 one or more times towards the start of each half cycle of the lamp current waveform, (Fig 4). Switch 1 may be controlled to turn on when the lamp current falls to a threshold. This threshold may be dependent on lamp load and ambient temperature.   A bypass switch 6 may be closed during lamp starting and in the event of a failure. Switch 1 is also held closed and switch 12 open during starting. A control system for switches 1, 6, 12 may respond to supply voltage, lamp current, and lamp light output. Switches 1, 12 may use gate turn off devices, MOS controlled thyristors, or a combination of a MOSFET and bridge rectifier, (Fig 6). Diodes 2, 3, 4, 5, resistors 8, 11 and capacitors 9, 10 provide voltage spike suppression. <IMAGE>
Patent GB-2270207-A (GB)
Title: Cooling of electronics equipment
Inventor: MURRAY DAVID
IPC: H05K7/20
Filed: 1993-08-27
Abstract: A circuit board 2 is a snug fit within a cavity 1a in a two-part enclosure 1b, 1c made from an aluminium alloy or other good heat conducting material. At least the spaces between the heat generating components 2a and adjacent internal faces of the enclosure cavity are filled and bridged by a material or compound possessing enhanced thermal conductivity, so that heat generated by the components 2a is transferred directly to the surrounding enclosure, in a direction away from, and generally perpendicular to, the plane of the circuit board. The thermally conductive material may be an aluminium oxide filled silicone elastomeric sheet or a potting compound such as epoxy resin. Alternatively the inner face or faces of the enclosure members may be configured to engage or be close to the heat generating components. <IMAGE>
Patent GB-2284352-A (GB)
Title: Water therapy appliance
Inventor: MANSFIELD DAVID ERNEST
IPC: A61F7/02
Filed: 1993-11-10
Abstract: A water therapy alliance for treatment of for example muscle complaints, comprising a jacket incorporating a water pressure let conduit system (2, 5) to enable heat/pressure to be applied via a heat/pressure transfer layer (7) to sensitive body areas to alleviate suffering and to reduce the necessity of sufferers to be subjected to the inconvenience of using a hydrotherapy pool. <IMAGE>
Patent GB-2274394-A (GB)
Title: Impregnation of tissues with aromatic products
Inventor: HARGREAVES NIGEL
IPC: A47K10/16
Filed: 1994-01-18
Abstract: A method of impregnating tissues with an aromatic product comprises packing the tissues in a substantially sealed container together with a quantity of a volatile liquid form of the aromatic product, the volatile liquid being contained on an absorbent base which is separated from the tissues by means of a film which prevents the flow of liquid from the base to the tissues but permits the evaporation of the volatile liquid to liberate the aromatic products for absorption by the tissues. Preferably, the base is located in an envelope formed of the film whereby the film and base together form a sachet. In the case where the container is a cylinder and the tissues take the form of an open-centred roll the sachet is preferably located within the open centre of the roll.
Patent GB-2275212-A (GB)
Title: Treating waste gas
Inventor: VAN ACKEREN PAUL
IPC: C21B7/22
Filed: 1994-01-18
Abstract: A method for using the energy contained in the gas from blast furnaces, in particular in the gas from cupola furnaces (1), is described. In order economically to use the heat from the blast furnace waste gas, the blast-furnace gas after emergence from the blast furnace is firstly wet-pre-purified in a scrubber (2) and cooled. Then the pre-treated blast-furnace gas is fed to a fine dust filter (6). Before entering the filter (6), a partial gas stream is admixed with the blast-furnace gas, which stream consists of blast-furnace gas which has been purified of dust and is branched off from the blast-furnace gas stream after emergence from the fine-dust filter (6). The partial gas stream heats the blast-furnace gas which is to be purified to above the dew point. The branched-off partial gas stream is heated in a recuperator (10) before admixing. The gas mixture which has been thus heated is purified of dust in the fine-dust filter (6), and is fed to a gas turbine (7) for further use. <IMAGE>
Patent GB-2285752-A (GB)
Title: Apparatus for operating a golf driving range.
Inventor: KINGSBURY RICHARD GEORGE
IPC: A63B57/00
Filed: 1994-01-20
Abstract: Apparatus is provided for automatically operating golf driving range having driving bays 10a to 10j. Ball delivery conduits 20a to 20j lead to the individual driving bays, and an automatic conveyor system, 12, 14, 16a, 16b is provided for maintaining a supply of balls at each of the driving bays. Each driving bay has player actuatable means for causing the golf balls to be delivered into the driving bay at each actuation. Each bay has a ball sensor 26a to 26j associated with each delivery, conduit and arranged to signal as the ball successively passes the sensor. A control system 34 fed with signals from the ball sensors is arranged to store for each player at each driving bay the number of balls supplied. An automatic ball dispensing and teeing device may be provided. <IMAGE>
Patent GB-2290702-A (GB)
Title: Reservoir toothbrush
Inventor: WOOLDRIDGE IAN
IPC: A46B11/00
Filed: 1994-06-22
Abstract: A toothbrush comprises a head (1), a handle (3), a toothpaste reservoir (4) and dispensing means (6) for moving toothpaste (5) from the toothpaste reservoir (4) to the head (1). The dispensing means (6) comprises a plunger (9) a pump (10) and a spring (11). Pump (10) has a passage (14) leading from the inside of handle (3) to the atmosphere and is closed at its inner end by a valve (15). Pumping action on pump (10) compresses spring (11) and the air in chamber (12), thereby moving plunger (9) towards head (1) to move toothpaste through passage (7) and out onto bristles (2). On releasing pump (10), spring forces pump back towards its original position and valve (15) opens allowing air to enter chamber (12) through passage (14). Preferably, the reservoir (4) contains sufficient toothpaste (5) to last a user the recommended life of the toothbrush. <IMAGE>
Patent GB-2290509-A (GB)
Title: Hand controls, for disabled drivers, mounted on adjustable steering column
Inventor: WEBBER JILL
IPC: B60K26/02
Filed: 1994-06-22
Abstract: Hand controls for disabled or other drivers which comprises a hand lever 1 is mounted on the upper part 10 of the vehicles steering column which can be connected to operate the normal brake and/or throttle and/or clutch controls, the lever 1 being pivotal linked to a pivot mounting on the lower part 11 of the steering column where the said upper and lower parts of the column are relatively moveable either as part of the safety design of the vehicle in the event of an accident or as part of the steering wheel position adjustment. The longitudinal links 3, 5 between the pivot mountings are either manufactured to move with the movement of the two parts of the steering column or are designed with a weak spot in the link 3 which normally operates in tension, which is designed to fracture or distort when subjected to high forces of compression as would be experienced in a crash situation where either the footwell or the lower part 11 of the column was being pushed backwards and upwards towards the driver or where the top part 10 of the steering column was being pushed downwards and away from the driver through impacts on the steering wheel. For vehicles which have adjustability to the steering wheel position, this system can be manufactured to allow the full range of adjustment to be obtained without affecting the relative position of the hand control arms and the steering wheel, which is self adjusting as the steering wheel is repositioned. <IMAGE>
Patent GB-2288864-A (GB)
Title: Engine with variable compression ratio
Inventor: MA THOMAS TSOI-HEI
IPC: F02B75/04
Filed: 1994-08-11
Abstract: In a variable compression ratio internal combustion engine each piston 12 is connected to a crank pin on the crankshaft by means of a connecting rod that is formed in two parts. The first part 10 is rotatably secured to the crank and the second part is rotatably secured to a gudgeon pin 14 of the piston 12. The two parts are connected to one another by a coupling including two eccentrics 26, 28 having axes of eccentricity that are inclined to one another so that the eccentrics cannot both lie in a dead centre position at the same time. The second part comprises two pairs of links 20, 22, 20', 22' disposed symmetrically about the connecting rod 10. All four links pivot about gudgeon pin 14. The links in each pair may be bonded to each other by elastomeric material 24. <IMAGE>
Patent GB-2292481-A (GB)
Title: Microwave antenna members secured by a bayonet-type arrangement
Inventor: SKINNER WILLIAM
IPC: H01Q1/08
Filed: 1994-08-17
Abstract: A microwave radio antenna assembly comprises a radio frequency head member 20 which is detachably mounted to an antenna casing member 10. One of said members is formed with studs 26 and the other member is formed with corresponding guide channels 14. The studs 26 and guide channels 14 provide a bayonet-type arrangement for securing the members 10, 20 together. The assembly may include a circular plug and socket arrangement with microwave ports which align when the member 10, 20 are in the secured position. The studs 26 may include spring-biased elements and there may be a handle 29 on the top of the radio frequency head member 20. Also disclosed is a bracket arrangement with two plates, which are rotatable relative to each other, including slot and bolt arrangements (Fig. 6). <IMAGE>
Patent GB-2279417-A (GB)
Title: A brake valve
Inventor: CASEY TODD ALDEN
IPC: B62D5/07
Filed: 1992-08-13
Abstract: A brake valve (45) is disclosed of the type which permits communication from a source (11, Fig. 1) of pressurized fluid to a brake actuator (47) in response to manual movement of a valve spool 57 from a neutral position, as illustrated, to a power brake position, in which the valve spool permits fluid communication between a piston bore 75, which communicates with a brake actuator, a chamber 85 connected to the source via a pressure limiting non-return valve (97, Fig, 3), and a brake load signal chamber 87, the brake load signal controlling the fluid output of the source. As the valve spool moves toward a manual brake position communication between the piston bore 75 and the brake load signal chamber is blocked. In the manual brake position, movement of the valve spool causes a large piston 63 to displace fluid from its piston bore 73 into the piston bore 75 in which is disposed a small piston 61, the small piston being operable in response to movement of the valve spool to build brake pressure in the brake actuator. A relief valve arrangement 137, 139, 141 relieves fluid pressure in the larger piston bore 73 to limit the manual force required to move the valve spool and the pistons. As described, the brake valve is in parallel with a steering circuit (37, Fig. 1) which is connected to the source and which also generates a load signal for controlling the output of the source, so that the brake valve and steering circuit have priority over other unspecified hydraulic circuits (23, Fig. 1). <IMAGE>
Patent GB-2282500-A (GB)
Title: Frequency converters
Inventor: NOGUCHI KOUICHI
IPC: H03L7/183
Filed: 1994-09-16
Abstract: A frequency converter is provided of which a frequency-dividing ratio is arbitrarily altered and retained after a power is turned off. The frequency converter has a programmable counter 13 which outputs a signal having a desired frequency, a non-volatile memory 15 for storing data for setting the frequency-dividing ratio and a control unit 16 for controlling writing of data into the memory. The programmable counter, the non-volatile memory and the control unit are accommodated in a single package. The frequency converter may comprise a resonator 11 and an oscillating circuit 12 within the package. The frequency convertor may function as a variable divider in the feedback loop of a frequency synthesizer. Applications may be in control of a stepping motor, communication systems, disk drive, driving unit of a printer or copy machine, laser scanner and magnetic card reader. <IMAGE>
Patent GB-2293317-A (GB)
Title: Vehicle seat assembly
Inventor: HENSHAW ANDREW RICHARD
IPC: B60N2/30
Filed: 1994-09-22
Abstract: A transverse beam 4 fixed to a first tiltable seat back 1 extends behind a second tiltable seat back 2 and has its end portions releasably locked to respective side portions 7a, 7b of the vehicle body. Thus the first seat back 1 remains adequately supported in its operative position while the second seat back 2 is moved to its inoperative position (as shown). <IMAGE>
Patent GB-2295768-A (GB)
Title: Spin fryer
Inventor: SMITH STEPHEN HOWARD
IPC: A47J43/24
Filed: 1994-12-09
Abstract: A spin fryer has a body (F) inside which is a basket (A) to contain the food. Food is submerged in oil and cooked by means of a suitable heating element (C). After cooking, the basket containing the food is raised from the oil on a spindle (D) and spun at a suitable speed by motor (B). Centrifugal action forces the oil off the food and the oil returns to the reservoir. The lid is removed (E) and the food is taken out. <IMAGE>
Patent GB-949443-A (GB)
Abstract: 949,443. Bedsteads; mattresses. G. A. LOAKE. Dec. 24, 1962 [Sept. 14, 1962], No. 35076/62. Headings A4J and A4M. A bed comprises two longitudinal rail members 10, 11 and a head rail 16 and a foot rail 17 hingedly connected at 14, 15 respectively to the rail members 10 and adapted to be swung from a folded position where they are aligned with the member 10 to an operative position in which they will extend at right angles to the member 10 and vice versa, the rail member 11 being adapted when the rails 16, 17 are in their operative positions to be moved from a closed position adjacent the rail member 10 to a position where it will be spaced from but parallel to the latter and will extend the outer face ends of the rails 16, 17 to form with the latter and the member 10 a rectangular frame. Legs 12 are hingedly connected to the rail members 10, 11 which are of channel section and have walls cut away to house the legs 12 in folded position. The rails 16, 17 are also of channel section and when in their folded position they embrace the members 10, 11. The rails 16 17, are retained in their operative position by studs 19 on the rail member 10 engaging holes in the rails 16, 17 and catches 24 in the member 11 engaging slots 25 in the rails 16, 17. When the rails 16, 17 are in their erected positions flanges 22 on these rails will form continuous spaced guide slots with flanges 21 on the rail member 10. The ends of the rail member 11 are provided with extension pieces 23 (Fig. 7) which are recessed to accommodate the flanges 21, 22 so that the sliding rail member 11 will be positively guided. A foldable base 26 is attached to the rail members 10, 11. Coiled suspension springs 27 are attached to the base 26, each spring 27 being attached to a slider member 28 which has a roller 29 to engage in the guide tracks formed by the flanges 21, 22. To collapse the bed, the catches 24 are released from the slots 25 and the rail 11 pushed inwardly towards the rail 10. The inward movement of the rail 11 will cause folding of the base 10, guides 30 (Fig. 8) being provided to cause the springs 27 to assume a staggered relationship.