baber/WOPTO huggingface dataset:
Patent GB-2213342-A (GB)
Title: Digital assistance data transmission in active picture period
Inventor: PULLEN R IAN RICHARD
IPC: H04N7/00
Filed: 1987-12-11
Abstract: A method and apparatus for transmitting extended aspect ratio pictures which can be viewed on an extended aspect ratio high definition screen but can also be viewed on a reduced number of lines on a conventional receiver, Fig 1, transmits, in lines 2, 4 not used in the picture viewed on the conventional receiver, non-visible data relating to picture information. The transmitter comprises a (HDTV) camera 42 providing a (HD) video signal to a standards down-converter 44. This has a video output with a reduced number of lines coupled to a frame store 46 and a data output for the additional information necessary for extension of the reduced picture connected to a buffer 48. Means 54 combines the data from the buffer 48 with the video signal from the frame store 46. A controller 50 responsive to synchronising information ensures that the data is combined with blank portions of the video signal. At an extended aspect ratio receiver a switch under the control of a data/video detector selects between sending picture information to a frame store and sending data to a standards up-convertor. The data is used to enhance picture information from the frame store, the resultant picture being displayed on an extended aspect ratio display. The data may be in non-return to zero or bi-phase format and at a level making it substantially invisible when displayed as a conventional receiver. <IMAGE>
Patent GB-2213850-A (GB)
Title: Enhanced oil recovery process
Inventor: BOCK JAN
IPC: C09K8/588
Filed: 1987-12-22
Abstract: Oil recovery from a subterranean oil-bearing formation is accomplished by injection under pressure of an aqueous solution of a water-soluble terpolymer having the formula:   <IMAGE> wherein R1 is a C6 to C22 straight, chained or branched alkyl or cycloalkyl group; R2 is hydrogen or a C6 to C22 straight, chained or branched alkyl or cycloalkyl group or a C1 to C3 straight, chained or branched alkyl group; and M<+> is an alkali metal or ammonium cation, wherein x is about 60 to 98 mole percent, y is about 2 to about 40 mole percent, and Z is about 0.1 to about 10.0 mole percent
Patent GB-2215479-A (GB)
Title: Viewing apparatus
Inventor: NORTH ROBERT ANTHONY
IPC: G02B27/02
Filed: 1988-02-27
Abstract: Viewing apparatus for x-rays, films comprises a viewing screen (7), lights (8), conveyor (9) extending across and below the screen, feeder (20) to feed films (30) one by one from the upper stack (25) onto the conveyor at one side of the screen so that its lower edge is lowered into engagement with the upper track (12) of the conveyor. The conveyor is driven continuously and at least one pin (29) can be selectively moved into or out of the path of said track in synchronism with operation of the feeder to stop a film, or films, in front of the viewing screen for viewing. The film is removed from the opposite side of the screen by withdrawing the rim(s). A separate viewing screen (36) which lights (37) may be provided so that a film from lower stack (25) can be viewed with one or more films on screen (7). Thus, the invention provided compact viewing apparatus in which many films can be readily examined as they pass across the viewing screen with the minimum of handling. <IMAGE>
Patent GB-2202668-A (GB)
Title: House signs
Inventor: BROWN WILLIAM HENRY
IPC: G09F13/00
Filed: 1988-03-18
Abstract: A house sign 10 has a housing 14 containing a light source 16, low voltage power supply 18 and light sensor 40. The housing is provided with a cover 12 of translucent plastics material on which the house name or number is formed in contrasting or normally opaque lettering or numbers. The light-sensitive device 40 in the circuit monitors ambient light intensity and controls a switch 30 in the circuit to the light source 16. During daylight hours the light source is off. When darkness falls the light source is energised, illuminating the sign. <IMAGE>
Patent GB-2204622-A (GB)
Title: Adjustable strut for use in mine archwork structures
Inventor: DAVIES GLYN
IPC: E21D11/28
Filed: 1988-05-05
Abstract: A telescopic strut member for spanning between parallel girders in a roof supporting archwork structure in mining or tunnelling comprises two elements forming the strut which have U-shaped cross sections and one element is designed to be slidingly received within the other. Two U-bolt clamps are provided to lock the elements together to provide a strut of predetermined length. Means, such as drilled plates are secured to each end of the strut for securing the struts to a respective girder, for example by bolting to the web thereof. Since the struts of the invention are telescopic they may be used when the distance between girders is variable. <IMAGE>
Patent GB-2207718-A (GB)
Title: Auxiliary braking device for an escalator
Inventor: KITAMURA SHIGEHARU
IPC: F16D65/18
Filed: 1988-06-16
Abstract: An auxiliary brake for an escalator which directly arrests the motion of the axle 5 of the stair driving sprocket wheel 3 comprises a toothed wheel 12 mounted on the axle through a friction-imparting support 12c, 17, 18, a detent lever 13 engaging with the toothed wheel to arrest the motion thereof, a spring 14 urging the lever in the direction of engagement, an electromagnet 18 which draws and keeps the lever out of engagement with the toothed wheel when energized, and a damper 16 which slows down the turning motion of the lever and represses oscillation thereof. Thus, when the electromagnet is de-energized, the lever comes into engagement with the toothed wheel after a certain delay to apply the braking force to the axle. Even when only the auxiliary brake is operative, the damper ensures the engagement of the lever with the toothed wheel by curbing the oscillations thereof. <IMAGE>
Patent GB-2209729-A (GB)
Title: Powder delivery apparatus
Inventor: CAMPBELL DAVID HUGH
IPC: B05B5/03
Filed: 1988-09-09
Abstract: Powder delivery apparatus has a first conduit 31, fed with powder in a carrier fluid and a second conduit 32 of greater bore than the first, extending downstream of the first. Air can be entrained by powder and carrier fluid discharged from the first conduit either through gap 33, Fig 5 or holes 36, Fig 6. This enables the powder to be carried at high velocity in the first conduit to avoid powder falling out of suspension and yet to be discharged at low velocity from the second conduit to coat an article without falling out of suspension in the second conduit. Fig 6 shows an electrostatic spray gun which can be taken closer to the workpiece than usual, and overcomes to a certain extent the "Faraday Cage" effect. <IMAGE>
Patent GB-2218039-A (GB)
Title: An extrusion-casting method
Inventor: SCHMIDT FRED KARL
IPC: B29C48/12
Filed: 1989-03-02
Abstract: A method of producing a profiled strip of polymeric material having a desirable surface finish on the outer periphery of the strip. The method comprising the steps of first extruding a profile strip of polymeric material through an extrusion die in a plastic extruder, laminating a sheet layer having a desirable surface finish on the surface facing the profiled strip to a predetermined area on the outer periphery of the profile strip and then cooling the profiled strip together with the laminated sheet layer such that the laminated sheet layer can be removed from the profiled strip to expose the desirable finish reproduced from the surface of the sheet layer.
Patent GB-2216721-A (GB)
Title: Cable controlled switch devices
Inventor: PICCOLI JEAN-LUC
IPC: H01H3/32
Filed: 1989-03-14
Abstract: A cable controlled electrical safety switch device comprises a cable 2 connected to a spring biased piston 15 having a groove 25 with two flanks 31, 32 and an actuating member 28 for actuating a switch 40 received in the groove 25 so as to be movable when the piston 15 is moved by the cable 2 in either of two opposite directions. The width of the groove 25 in the piston 15 varies about the periphery of the piston 15 and the piston 15 is angularly adjustable so that the distance between the switch actuating member 28 and at least one of the groove flanks 31, 32 can be adjusted. The device enables the initial tension of the cable 2 to be adjusted and compensation to be made for any length variation of the cable 2 due to temperature. 
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Patent GB-2216827-A (GB)
Title: Taphole drilling machine
Inventor: VENTURINI SEVERINO
IPC: C21B7/12
Filed: 1989-03-20
Abstract: The machine has a conical guide and support head (34) which is mounted slideably on a mount (20) and which comprises at least one hook (42) equipped with two mutually opposite catching slots allowing the hook (42) to occupy two catching positions, in the first of which the head (34) is secured to a sliding frame (36) displaceable by means of a sliding carriage (28), and in the second of which the head (34) is secured to the front end of the mount (20). The head (34) is used to guide a drill rod (32) into the carriage, which has the power spindle, for removal from a shaft furnace. The carriage moves the frame (36) by abutment with either of two stops (38, 40). 
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Patent GB-2224088-A (GB)
Title: Hydraulic braking system with reduced pedal travel
Inventor: NISHII MICHIHARU
IPC: B60T13/14
Filed: 1989-08-25
Abstract: In a hydraulic braking system for a motor vehicle a pressure regulator 30 adjusts the pressure of fluid supplied by a power source of pressure fluid e.g. a pump 22 to a pressure equal to that provided by a master cylinder 2 and during normal operation this pressure-regulated fluid is applied directly via line 73 to the slave cylinders 53a, 54a of some vehicle wheels 53, 54 and the master cylinder 2 provides hydraulic pressure via lines 71, 72 to the slave cylinders 51a, 52a of the other vehicle wheels 51, 52. During antilock brake modulation the pressure regulated fluid is provided to the slave cylinders 51a to 54a of all vehicle wheels 51 to 54 after antilock pressure modulation. During anti-spin control high pressure fluid from a high pressure port 34p of the pressure regulator 30 provides the hydraulic pressure, after modulation, to the slave cylinders of the driven wheels. The utilization of the pressure regulated hydraulic fluid during normal braking reduces the pedal travel of the master cylinder 2, which may be unservoed or associated with any conventional brake servo system 3. 
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Patent GB-2225894-A (GB)
Title: Display
Inventor: TSUNODA HIDEYUKI
IPC: G09G3/34
Filed: 1989-11-08
Abstract: A liquid crystal display 24 is provided with an electroluminescent (EL) lamp 26 which back lights the display. The lamp 26 is responsive to light which is incident on the display, the electrostatic capacity of the lamp varying with the incident light. Circuitry is provided which reads the light intensity falling on the EL lamp and controls the level of illumination accordingly. The display forms part of portable radio equipment. <IMAGE>
Patent GB-2244098-A (GB)
Title: Variable configuration gas turbine engine
Inventor: BRYCE WILLIAM DEAN
IPC: F02K3/075
Filed: 1990-05-17
Abstract: A gas turbine engine suitable for supersonic aircraft uses a variable configuration to reduce jet noise at take-off without compromising engine efficiency at high cruise speeds. In the take-off configuration, supplementary air intakes (21) are opened to admit ambient air into bypass duct (20). The combined flow of bypass air and entrained ambient air is mixed with the engine core flow at the upstream end of jet pipe (30) to exhaust through a large common nozzle (32). Opening and closure of the intakes (21) is linked to the control of variable area nozzles (17, 22 and 32) such that nozzles (17 and 22) are reduced in area when intakes (21) are open whilst nozzle (32) is opened. This promotes efficient mixing as far upstream as possible, thereby attenuating the exhaust jet velocity and thus reducing its noise-generating capacity. In cruise operation the engine adopts the configuration of a conventional low bypass ratio engine: intakes (21) are closed, nozzles (17 and 22) are opened and nozzle (32) is reduced in area.
Patent GB-2241934-A (GB)
Title: Ensiling and unloading device for a bunker silo
Inventor: YAJI YUKIO
IPC: A01F25/20
Filed: 1991-02-04
Abstract: A device for ensiling and unloading fodder from a bunker silo, comprising a carriage 8 mounted on rails (6a, 6b) on the side walls of the silo for movement along the rails. A frame 20 is suspended from the carriage and a pantograph mechanism 10 is provided for moving the frame vertically. The frame carries a levelling device 19 for levelling the fodder in the silo, compression rollers 17, 18 for compressing the fodder and a bucket 21 for removing the ensiled fodder from the silo. Preferably a rack and pinion moves the pantograph mechanism. <IMAGE>
Patent GB-2259319-A (GB)
Title: Safety barrier
Inventor: BAYLEY BRIAN EDWIN
IPC: E06B9/02
Filed: 1991-08-30
Abstract: A kit of parts for assembly of a child-proof safety barrier 12 for a passageway, is formed in component parts comprising elongate frame elements 18, 20, 22, 24 and means 28 for defining a restriction held within the frame to allow assembly and disassembly for storage of the barrier and to facilitate transportation from one site to another. A corner fitment 34 for attachment to the ends of two outer members 18, 22 of the frame for holding them at substantially 90 degrees provides an aperture 50 for receiving the jacking screw 60 of a gate buffer 14 to allow the barrier to be braced in position across a threshold. <IMAGE>
Patent GB-2264323-A (GB)
Title: Window blind mounting bracket
Inventor: RALTON DAVID
IPC: E06B9/323
Filed: 1992-02-21
Abstract: Bracket means (1) for attachment to a wall, window frame or ceiling in order to provide a support for a window blind, the bracket means having latching means (7) for temporary fixing of a casing (6) of the window blind loosely in position prior to fixedly securing the casing (6) to the bracket means (1). <IMAGE>
Patent GB-2253816-A (GB)
Title: Pneumatic tire tread having high density siping zones in the shoulder regions
Inventor: SCHUSTER DANIEL EDWARD
IPC: B60C11/01
Filed: 1992-03-09
Abstract: In a tread 12 of or for a pneumatic tire each shoulder region 13, 14 contains a high density siping zone 16, 18 of width between an inside edge 36 and an outside edge 40 from about 1.4% to about 4.5% of the overall tread width and/or between 3mm and 9mm. The outside edge 38, 40 of each siping zone 18, 16 is spaced from the nearer tread edge by a distance from about 0.9% to about 6.5% of the overall tread width and/or by from 2mm to 13mm. From about 50% to about 30% of the surface area 43 in each high density siping zone 16, 18 is ground contacting with the remaining area being siping 44. No more than 50% of the siping 44 is arranged in the circumferential direction and it is stated that at least 75% of all sipes within each high density siping zone are arranged so that their end portions are laterally aligned with or overlap in the circumferential direction an end portion of another sipe within the zone. The high density siping zones reduce the tendency for shoulder edge chamfer wear by creating a weakened zone without the tendency for tearing of tread rubber associated with decoupling grooves. <IMAGE>
Patent GB-2257723-A (GB)
Title: Movement assisting apparatus for stairs.
Inventor: MCGREGOR JOHN ROBERT
IPC: E04F11/18
Filed: 1992-04-07
Abstract: Movement assisting apparatus 2 comprises a track 4 in which a wheeled carriage 6 is arranged to move. The track is fixed to a wall adjacent to a flight of stairs and arranged so as to extend parallel to the elevation of the flight of stairs. In use, a person may be supported whilst walking up or down the stairs by holding support handle 8 and pushing the carriage along the track. The movement of the carriage 6 along the track is restricted by car means which co-operate with space rows of slots, and which can be released from engagement, when descending the stairs, by a lever 10. <IMAGE>
Patent GB-2259026-A (GB)
Title: Venting device
Inventor: PUFPAFF FREDERICK JAMES
IPC: F25D23/06
Filed: 1992-06-26
Abstract: A venting device is used to allow displacement of gas from the hollow space inside a refrigerator wall or door as said space is filled with foamed-in-place insulating material. The device comprises apertures 18 of elongated section which taper in the direction of gas flow from surface 14 to surface 16. The device shown also includes a cylindrical recess 28 designed to receive a pivot pin 132 for mounting the door. Other constructions are similar but receive a shelf support (Figs. 5, 6) or are generally flat (Figs. 7, 8). The device is made of moulded plastics. Apertures 18 may have a taper of 0.2 to 1. <IMAGE>
Patent GB-2266187-A (GB)
Title: Rotary stepping switch.
Inventor: WONG BUN
IPC: H01H17/18
Filed: 1992-07-23
Abstract: A rotary stepping switch comprises a rotor (23) supported within a casing (12, 13) for rotation about an axis, a movable switch contact (22) carried on the rotor (23), a driving member (30) supported for rotation within the casing about the axis for rotating in a driving direction (Y) the rotor (23) in order to move the movable switch contact (22) into or out of electrical contact with one or more stationery switch contacts (20A, 20B), one-way clutch means (32, 28) provided between the driving member (30) and the rotor (23) for enabling the driving member (30) to impart a stepwise drive to the rotor (23), and first and second interengageable parts (27 and 208) for stopping the rotor (23) against rotation upon return rotation of the driving member (30) in a non-driving direction (X) opposite to the driving direction (Y), the first part (27) of the stop being provided on the rotor (23) proper. The second part of the stop may be provided by a stationery switch contact (20B) or on the inner side of the casing. <IMAGE>
Patent GB-2257866-A (GB)
Title: Tracking radar system
Inventor: ATTWOOD JOHN WILLIAM
IPC: G01S13/68
Filed: 1992-08-14
Abstract: A tracking radar system has a multi-element aerial (1). A receiver (10) processes radio-frequency sum (S) and difference (D) signals derived from the aerial to produce corresponding intermediate frequency sum (S<1>) and difference (D<1>) signals. The oscillator (62) of a phase-locked loop (60) locks on to the frequency of the intermediate frequency sum signal (S<1>), and a phase-sensitive detector (34) compares the oscillator (62) output with the intermediate frequency difference signal (D<1>) to produce an output signal representing the direction of a target relative to the aerial. The phase-locked loop includes a variable gain circuit (300). Responsive to the intermediate frequency sum signal (S<1>), a threshold detector (304) produces a first or second output signal. The first threshold output signal is combined with a target acquisition signal to cause the variable gain circuit (300) to slowly decrease the bandwidth of the phase-locked loop (60). The second threshold output signal causes the variable gain circuit (300) to rapidly increase the bandwidth of the phase-locked loop (60). The invention is particularly concerned with a method of providing AGC in the receiver. <IMAGE>
Patent GB-2264120-A (GB)
Title: Combined laundry washing machine and space heater with kit for drying
Inventor: CINELLO ARTURO
IPC: D06F34/28
Filed: 1993-02-08
Abstract: A front-loading laundry washing machine comprises a washing tub containing a drum, a front opening, an air heating element 2, a fan 3 and suitable conduits (4, figure 2) for passing heated air to the exterior of the machine by way of an orifice 5 which is open at the front of the machine such that the machine can be used as a space heater. The machine also comprises a suitably shaped conduit 6 which is open at its ends 7, 8 and can be removably installed on the front of said laundry washing machine in such a way that its open ends 7, 8 are disposed respectively in front of the opening and in front of said orifice 5 thus ducting hot air into the drum to effect drying. In the preferred embodiment the conduit 6 has openings (15, figure 4) which allow the escape of warm moist air from the drum. <IMAGE>
Patent GB-2266403-A (GB)
Title: Magnetic disc drive and sector servo system.
Inventor: YAMAMOTO SATOSHI
IPC: G11B21/10
Filed: 1993-04-16
Abstract: In an idle state, servo information from all sectors is not used, but the servo information from every other sector or from every three or more sectors is used so that head positioning can be performed with only a minimum number of the servo information. The power of electric circuitry of a write or read system and a servo system, which is not needed in the idle state is interrupted, from the arrival of the selected servo information to the arrival of the next selected servo information, by a power control signal generated in accordance with timing of the, sectors. The consumption power can be reduced by the amount corresponding to turning off of the circuitry not needed, plus the amount needed for computing for position control. <IMAGE>
Patent GB-2281975-A (GB)
Title: Security camera
Inventor: RICHARDS THOMAS PETER
IPC: G08B13/196
Filed: 1993-09-17
Abstract: A Security Camera, a body 10 which incorporates a camera 12 solenoid 16 PCB board 18. Batteries and or power supply to be triggered by intruders. The unit will also complement a larger system and can be used in multiples, being armed or disarmed by the larger system or by a hand held remote control. <IMAGE>
Patent GB-2272561-A (GB)
Title: Magnetoresistive head with longitudinal biasing
Inventor: NIX JAMES LAMAR
IPC: H01F41/14
Filed: 1993-11-12
Abstract: An improved magnetoresistive device and method for fabricating the same which results in improved Barkhausen noise suppression. A generally coplanar device 120 is described having an MR structure conductive region 122 longitudinally biased by opposing permanent magnet layers 128 separated therefrom by a non-magnetic metal or dielectric separation layer 136. Significant reduction of the demagnetization energy near the MR-to-permanent magnet junction is achieved, particularly in the use of an elliptically shaped conductive region (172. Fig. 11) and the resultant generally coplanar device is readily fabricated and reproducible using a self-aligning process. The longitudinal bias technique described can be used in conjunction with all known transverse bias techniques. <IMAGE>
Patent GB-2273328-A (GB)
Title: Vibration damper for motor vehicles
Inventor: GROSS JOSEF
IPC: F16F9/54
Filed: 1993-12-06
Abstract: A vibration damper for motor vehicles, has a piston 2 secured to a piston rod 1, the piston rod being attached to the vehicle by means of an attachment member 9 and rubber rings 3. In order to achieve an economical, resilient attachment with good sound insulation and working life, each rubber ring 3 has a greater axial length (5, Fig. 4) at its outer periphery than at its inner region. Each ring 3 may also have raised portions and/or recesses on its axial faces. <IMAGE>
Patent GB-2281973-A (GB)
Title: Filling containers
Inventor: BADDER PETER
IPC: G01G13/02
Filed: 1994-01-13
Abstract: The apparatus (100) for weighing and filling containers includes a material delivery arrangement (5) having an outlet (52) for supply of material to a container position. A container would be supported on pan (11). A container support frame (1) is pivotally mounted onto a frame of the apparatus by one or more pivoted support arms (14, 17). Counterbalance means (45) for the container support frame (1) are coupled to the support arms rearwardly of the pivot. Automatic mechanical cut off means (60, 63, 64) are arranged such that, when weight of material in the container being filled overbalances the counterbalance means (45) to cause the support frame (1) to move downwardly, the cut off means (60, 63, 64) are actuated so as to close the outlet (52) from the material guide arrangement (50). <IMAGE>