baber/WOPTO huggingface dataset:
Patent GB-2080872-A (GB)
Title: Fabric fasteners
IPC: F16B21/18
Filed: 1980-07-26
Abstract: A fastener for releasable engagement with a curtain comprises a loop of spring wire having wider 12 and narrower 13 loop portions. A suspending hook 14 is formed integrally with the wider loop portion. A detent stud has a detent head 15 for insertion through the wider loop portion and a decorative head 17, the detent and decorative heads being joined by a stud shank 16. In use, a portion of curtain is taken through the wider loop portion together with the detent head and is retained in the loop by shifting into engagement with the narrower loop portion. <IMAGE>
Patent GB-2063512-A (GB)
Title: Diazo development
IPC: G03D7/00
Filed: 1980-10-30
Abstract: The invention is concerned with preventing the escape of ammonia to the environment in the vicinity of a diazo copier, by controlling the pressure of the ammonia rather than the flow rate of an ammonia solution. Ammonia solution in a reservoir 42 is heated to produce a supply of ammonia vapour under pressure which is metered by a gas governor 70 and released, into chamber 44 from which it diffuses out through apertures 96 to contact the copy material. Surplus developing agent is removed from exposed copy material by radiant heat from heat lamps 22 controlled by a sensor 210. Air and any escaping ammonia are withdrawn from chamber 10 and flown beneath the surface of citric acid solution in a vessel 230. Baffles 246, 248 in the vessel 230 lengthen the flow path through it and further baffles 250, 252 prevent splashing. Tubes 130, 132, 134, valves 100, 102, 110, 112 and a pump 140 enable filling with fresh ammonia solution and the draining of exhausted solution with minimal escape to the atmosphere. <IMAGE>
Patent GB-2090506-A (GB)
Title: Video colour graphics apparatus
IPC: G06F3/0484
Filed: 1980-11-12
Abstract: n-bit code numbers in a picture store 11 are read out synchronously with television waveforms to a "palette" 17 (programmable look-up table) and digital-to-analogue converters 18R, G, B to provide video signals for a picture whose elements are individually given their colours by the stored n-bit numbers. A keyboard 22, graphics tablet 24 and control unit 20 enable an artist to set up the contents of the store 11 to draw the desired picture. In order to allow a modification to the picture to be tested, a flag bit store 12 can have flag bits set to "1" for those elements which are to be in a new colour defined by an n-bit code written into a register 26. When a signal on input 34 is "1" each "1" flag bit causes a selector 16 to pass the register code to pass to the palette 17 in place of the corresponding code in the picture store 11. When the artist is satisfied with the modification, the unit 20 writes the code in the register 26 into all n-bit locations in the store 11 corresponding to "1" flag bits, which are reset to "0". <IMAGE>
Patent GB-2066596-A (GB)
Title: An arc lamp lighting unit with low and high light levels
IPC: H05B41/38
Filed: 1980-12-10
Abstract: The present invention relates to a lighting unit having low and high light levels and employing an efficient arc lamp 11 as the source of light during the high level setting. The unit employs a filamentary light source 12 for the production of light during low light level operation, the filament acting as a resistive ballast for the arc lamp during high level operation. Practical embodiments operate in a conventional three-way light socket with the sequences being off, low, high and low, and off, low, high, and high. <IMAGE>
Patent GB-2070571-A (GB)
Title: Card conveying apparatus
IPC: G06K13/073
Filed: 1981-01-28
Abstract: In a card conveylng apparatus an opposed member 20 is provided parallel to a transport path of a card (not shown). To reduce the number of parts used and enhance the mounting accuracy of the parts and the reliability of the apparatus the member 20 carries a number of different functional parts. As shown the member 20 carries a card side pressure plate 22, projection 20a corrects any unwanted bend in a card (to improve the operation of magnetic head 18), blocks engaging shafts 17a, 17b so that the member 20 is attachable to plate 10 and blocks 20b, 20c to tension spring 24 and aid positioning the bead 18 respectively. <IMAGE>
Patent GB-2072850-A (GB)
Title: Metal scale for an electronic measuring instrument
IPC: G01L9/12
Filed: 1981-02-19
Abstract: A metal scale 1%, for an electronic measuring instrument is made by forming a non-reflecting thin film 12 on a mirror-finished surface of a metal base 11. A photoresist film 13 is then applied onto the thin film 12, is irradiated with light through a mask 14, and developed. The photoresist film 13 is removed at portions that are to be engraved, the thin-film portions 12 thus exposed then being engraved by etching to provide light-reflecting graduations 16, without attacking the mirror-finished surface of the metal base 11. The remaining photoresist film 13 is then removed, so that the exposed thin-film surfaces 12 will serve as light-absorbing graduations 15. The metal scale 1% which is produced by this method is free from the development of side etches, whilst its light-reflecting graduations 16 show excellent durability. <IMAGE>
Patent GB-2076161-A (GB)
Title: Measuring Rotation or Voltage Using Charged Superconductors
IPC: G01P3/46
Filed: 1981-05-15
Abstract: Methods of accurate measurement of angular velocity of rotation over long periods and methods of voltage measurement use apparatus comprising two concentric, electrically-charged, superconducting paths 11 and 12, shielded from external magnetic fields, and means for measuring the current in one path. When the paths are rotated, the currents formed by the moving charges tend to set up a magnetic field in the region between the loops but since this region is within a superconducting loop, a current flows in the paths to oppose the setting up of the magnetic field. By measuring this current, a measure of angular velocity of rotation is obtained, but if instead the paths are rotated at constant speed and an unknown voltage is applied between the paths, the measured current indicates the unknown voltage. <IMAGE>
Patent GB-2101441-A (GB)
Title: Facsimile reproduction apparatus and image input apparatus therefor
Inventor: HIRABE AKIRA
IPC: H04N1/207
Filed: 1981-05-26
Abstract: A facsimile reproduction apparatus 1 has means for mounting an original 3 and a receptor sheet 4 on longitudinally spaced areas of the periphery of a drum 2. Scanning of the original and the receptor takes place using respective devices 5 and 7 which carry out by-line scanning, the input device 5 being a linear CCD array and the output device being a thermal or similar printing array extending across the width of the receptor sheet. <IMAGE>
Patent GB-2081208-A (GB)
Title: Machine for Winding Tape about Advancing Core
IPC: B65H81/08
Filed: 1981-07-09
Abstract: In the machine, each winding head (5) carries tape reels and is rotated about an advancing core, which itself rotates about its own axis, by the annular gear (Z13, Z14) of a gear transmission and epicyclic gear whose planet gear (Z12) is orbited at constant speed and in constant direction by gearing (shaft 10, gears Z1-4 and shaft V) and whose sun gear (Z11) is rotated by change speed gearing (gears X on shafts 11 and 111) via reversible gearing (Z5-8). This arrangement allows constant relative rotation speed of the head and core irrespective of head reversal, and constant winding pitch. The change gears may be replaced by a stepless variator (Fig. 5, not shown). <IMAGE>
Patent GB-2102885-A (GB)
Title: Thermostatically controlled fan
Inventor: HART WILLIAM BARRIE
IPC: F04D27/00
Filed: 1981-07-27
Abstract: The fan includes a throttle member 20 located in an air intake 16 to control the airflow through the intake. The throttle member 20 is operatively connected to a thermal actuator 25, comprising a spring made of SME material such as heat treated Cu-Zn-Al Alloy, so that the flow is controlled in dependence on the ambient air temperature to which the actuator 25 is subject. When the air temperature increases, the SME spring becomes stiffer until it overcomes the bias of a spring 23 and displaces the member 20 to open the intake. In a modification, the throttle member closes the intake when the temperature increases. <IMAGE>
Patent GB-2109653-A (GB)
Title: Communication system using X- or ???-rays
Inventor: LLOYD PETER GREGORY
IPC: H04B13/00
Filed: 1981-10-10
Abstract: A system for electromagnetic communication through highly attenuative matter, e.g. control instructions to buried mines, comprises generating a beam of ???- or x-radiation and pulse modulating it in accordance with the information to be transmitted, and receiving the radiation by means of a radiation detector/counter and deriving the information from energy variations in received radiation. The transmitted beam may be generated (Fig. 1) by a radioactive isotope 14 arranged to emit a beam of ???-radiation by way of an aperture 16 of a housing and shield 15, the beam being steerable in direction by gimballed mounting 19 of the housing. The isotope has attached thereto an ultrasonic vibrating device 20 by which the Mossbauer effect can be induced to vary the energy distribution of the emissions and so modulate the beam for detection. Alternatively, the beam may be generated by an x-ray tube 43 (Fig. 4) in which the source of electrons to be accelerated to the tube target is varied to effect energy modulation of the emitted beam. <IMAGE>
Patent GB-2087138-A (GB)
Title: Electron lens equipped with three magnetic pole pieces
IPC: H01J37/141
Filed: 1981-10-15
Abstract: An electron lens equipped with three magnetic pole pieces 7, 8, and 9 defining two gaps, 51 and 52 forms two magnetic fields of opposite polarities. The magnetomotive force of the magnetic field in the upper gap is fixed at a value close to the magnetomotive force providing a minimum focal length under the condition that the magnetomotive forces in both gaps are equal to each other, and the magnetomotive force of the magnetic field in the lower gap is made larger than that of the magnetic field in the upper gap, so that not only radial and spiral distortions are eliminated but also focal length is shortened. <IMAGE>
Patent GB-2107809-A (GB)
Title: Fuel pipe seal
Inventor: ROBERTS NORMAN
IPC: F02M55/02
Filed: 1981-10-16
Abstract: A fuel pipe (10) is provided with a modified end portion (11) which locates in a connector (20). The fuel pipe modified end portion (11) is provided with two portions (12, 14) which are of different diameters and have resilient annular sealing members (17, 19) located upon them. The sealing members (17, 19) radially space apart the fuel pipe modified end portion (11) and the connector so as to permit limited relative movement between them. A fuel drain (26) is provided in the connector (20) between the two sealing members (17, 19) so that any fuel leakage past the smallest seal (19) will not result in fuel leaking to the exterior of the fuel pipe/connector assembly. <IMAGE>
Patent GB-2113509-A (GB)
Title: Plasma method and apparatus for the production of compounds from gas mixtures, particularly useful for the production of nitric oxides from atmospheric air
Inventor: ALAMARO MOSHE
IPC: C01B21/32
Filed: 1981-11-20
Abstract: A process and apparatus for the production of compounds from gas mixtures by the plasma method, particularly useful for the production of nitric oxides from atmospheric air as a step in producing synthetic nitrogeneous fertilizer. According to the novel method, a supersonic speed is imparted to the gaseous medium flowing through the reactor in which an electrical discharge is produced, and at least part of the energy of the gaseous medium exiting from the reactor is converted into electrical energy.
Patent GB-2112664-A (GB)
Title: Liquid sample dilution means and process and a tip therefor
Inventor: SMITH KENDALL O
IPC: B01L3/02
Filed: 1981-12-24
Abstract: An improved process and device for facilitating microanalysis of samples under ten microliters with good accuracy-precision. A sample together with a dilution liquid are simultaneously delivered into a receptacle in a suitably small volume. The delivering means comprises a liquid receiver (12) with a metering means (13) for dispensing dilution liquid into the bore of a tip (11) at the lower end of the reservoir. A probe (23) extends from the lower end of the tip so that liquid from the tip will run down the probe. The free end of the probe has a longitudinally extending slot which may be filled by dipping with a liquid sample to be diluted. <IMAGE>
Patent GB-2092843-A (GB)
Title: Lighting system and compact electric lighting unit
IPC: H05B41/04
Filed: 1982-01-04
Abstract: A lighting system and a compact lighting unit has a high pressure gas discharge lamp 12 and an incandescent body 4 within a common sealed and evacuated bulb 13. A ballast unit fitted externally to the neck of the bulb 13 includes in series with the body 4 an interruptor 5 and control circuitry therefore, and a choke coil 3 in series with the discharge lamp 12. The control circuitry represents an equivalence logic with two variables, wherein the output of an equivalent circuit 6 is connected to the control input of the interruptor 5 while its inputs are connected to a potential divider 11 connected across the discharge vessel 12. The lighting system instantly emits light when switched on from the mains and maintains the illumination at an approximately constant level during the cool or cooling down periods of the discharge vessel following its start, warm-up, or re-start after switch off. <IMAGE>
Patent GB-2096938-A (GB)
Title: Dry storage cells for radioactive material
IPC: G21F7/06
Filed: 1982-02-12
Abstract: A facility for posting irradiated nuclear fuel from a preparation cell 1 of a dry storage complex into storage canisters 3 located in buckets 23 within a clean cell 4 comprises a telescopic tubular port member 5 for sealably connecting the preparation cell 1 to a canister 3. In operation the closure 9 of the canister 3 is screened against contamination and withdrawn from the canister into the preparation cell 1 via a retractable grab 8 prior to posting of the fuel into the canister. <IMAGE>
Patent GB-2115277-A (GB)
Title: Electrically heatable free standing portable clothes dryer
Inventor: HOWORTH MICHAEL N
IPC: D06F58/16
Filed: 1982-02-26
Abstract: An electrically heatable free standing portable clothes dryer 10 comprises a support post 12 and at least two wings 14 and 16 hingedly (18) attached thereto about a vertical axis. The wings 14 and 16 each comprise three horizontal sections 32, 34 and 38 for supporting articles of clothing and a ground-engaging leg 40. The wings 14 and 16 contain electrically heatable filaments. <IMAGE>
Patent GB-2099751-A (GB)
Title: Heat sealing apparatus and method
IPC: B29C65/18
Filed: 1982-05-13
Abstract: A method for sealing plies of thermoplastics, has only two steps, namely applying heat and pressure at the line of the seal and subsequently compressing or crushing of the seal line. The preferred apparatus comprises a pair of juxtaposed endless metal bands 3, 5 between which the plies are gripped. The bands pass between two heating blocks 9.1, 9.2; 10.1, 10.2 which are resiliently biassed into heat conducting contact with the band. A pair of nip rollers 7 are disposed downstream of the heating blocks and outwardly of the endless band and crush the plies to form the seal. <IMAGE>
Patent GB-2109726-A (GB)
Title: Producing a new edge on an airfoil blade for a gas turbine engine
Inventor: SHARON HAROLD MAYNARD
IPC: B23D1/26
Filed: 1982-11-01
Abstract: In a process for the production of a new edge on the aerofoil edge of a gas turbine blade, one side face is cut using a first cutting tool (Fig. 3) to form the desired angle and thickness between opposed blade surfaces and then the leading edge of the blade is cut by a second cutting tool (Fig. 5) to provide an aerodynamically efficient blade contour. Two separate hand held tools are used in the forming process. <IMAGE>
Patent GB-2133457-A (GB)
Title: Hinge connections
Inventor: BERINGER MICHAEL
IPC: E04B2/74
Filed: 1983-01-12
Abstract: An assembly of members, particularly but not exclusively free standing screens or panels 10 which are interconnected by a common connecting element 30. The connection between each member and the element comprises a lobe 32 and a complementary channel 18 which may be so shaped as to permit relative angular displacement of the connecting element and each member so providing a hinged connection. In the preferred embodiment, the connecting element 30 extends along the entire length of the members and has lobes 32 which are interconnected by a web or webs 34. <IMAGE>
Patent GB-2118685-A (GB)
Title: Drainage valve
Inventor: BRIGGS PETER JAMES
IPC: F16K27/04
Filed: 1983-01-28
Abstract: A drainage valve for a liquid container such as, for example, a body fluid drainage bag comprises an inlet and an outlet member (5, 4) which respectively define a first and second open passage (10, 6). The outlet member is mounted on a cylindrical element (9) of the inlet member (5) for rotation between an open and closed position in which the two passages are respectively connected and disconnected. <IMAGE>
Patent GB-2116085-A (GB)
Title: Grinding machine and method of grinding a workpiece
Inventor: MORITOMO SADAO
IPC: B24B53/00
Filed: 1983-03-02
Abstract: A grinding machine comprising a grinding wheel (6); means for rotating the grinding wheel (6); a dressing wheel (10); means (M3) for rotating the dressing wheel (10); means (M2,7) for maintaining the grinding wheel (6) and the dressing wheel (10) in a dressing position in which in operation the dressing wheel (10) dresses the grinding wheel (6); a dressing device (13) which may be a wheel or diamond tip; and means (M4,12) for maintaining the dressing wheel (10) and the dressing device (13) in a dressing position in which in operation the dressing device (13) dresses the dressing wheel (10). <IMAGE>
Patent GB-2117840-A (GB)
Title: An extractor
Inventor: FALDBORG NEILS
IPC: F16L37/00
Filed: 1983-03-29
Abstract: In an extractor with an aluminium head (10) and a down pipe (20) of steel electrolytic corrosion is prevented because the spring seat 23 supporting the lower end of the screw spring which causes the ring-shaped valve body (17) of the extractor to assume a closed position, is made of an electrically insulating material. The spring seat is formed with two sets of resilient means (36 and 40) which can cooperate with a flange (24) on the down pipe to secure the spring seat thereon and with recesses (22) in the skirt (12) of the head to secure the spring seat in it, respectively. The various faces of these parts are so loosely engaged with one another that they are readily accessible for cleaning liquid, and the down pipe has so much freedom of movement as to be self- aligning when the valve body is acted upon. <IMAGE>
Patent GB-2147706-A (GB)
Title: Apparatus for balancing an electrical network
Inventor: WALTON JOHN HUGH DAVEY
IPC: G01R17/06
Filed: 1983-04-21
Abstract: An electrical null transmission network, such as a balanced mutual inductance system used for metal detection, may have to be maintained in a balanced or null condition in order to register departures from this condition in the presence of time-varying disturbances such as mechanical movement or thermal drift. The out-of-balance signal from the network is split into separate components, at least one of which is rectified and to at least one of which a constant signal is normally added, pairs of such signals being multiplied together and combined or integrated to form a negative feedback signal. This affords a quasi-stable response to small desired signals while other signals are rapidly attenuated. <IMAGE>
Patent GB-2128750-A (GB)
Title: Displacement transducer system
Inventor: ASBERY JOHN HARRISON
IPC: G01D5/241
Filed: 1983-10-03
Abstract: A transducer system includes a variable capacitor 13 formed by a pair of relatively movable elements, with a dielectric medium between. The capacitor 13 is connected in series with a fixed capacitor 14 across the output of an A.C. generator 15. The voltage across the capacitor 14 is sensed to provide a D.C. output signal, which is compared with a reference voltage in a comparator 19 and the difference is supplied to a memory circuit 21 which controls the output voltage of the generator 15. The reference voltage is chosen to be equal to the desired value of the output signal at either the maximum or minimum value of the capacitor 13. In the embodiment the movable one of the pair of elements spends a substantial portion of its time at a stop, such that the capacitance is a maximum. <IMAGE>
Patent GB-2130275-A (GB)
Title: Road construction
Inventor: MUTTER DEREK
IPC: E01C9/08
Filed: 1983-11-14
Abstract: A temporary road, track or hard standing structure for heavy duty vehicles consists of an array of prefabricated slabs (10) laid over the required area, each slab consisting of a block of concrete (12) encased in a metal channel frame (11), and the slabs being releasably shackled to one another after laying to prevent progressive parting due to vehicle and/or ground movement while at the same time accommodating relative movement between the slabs. As shown each slab has four corner lifting rings 19 retained in eyes 18 welded to the frame 11, adjacent rings 19 being coupled by a shackle 20 and pin 21. In a modification dispensing with the rings 19 the shackle directly couples welded-on elongated eyes. <IMAGE>
Patent GB-2130177-A (GB)
Title: Device for use in dispensing and other carbonated beverages
Inventor: BETTERIDGE PAUL
IPC: B67D1/00
Filed: 1983-11-15
Abstract: A dispense spout for apparatus for dispensing beer or other carbonated beverages has a sparkler (6) which can be removed for cleaning. To prevent the spout being used without the sparkler there is a closure valve in the form of a ball (10) which engages a seat (5) and thus closes the spout when the sparkler is removed. The sparkler includes a conical portion (8) which, when it is replaced on the spout, lifts the ball from its seat and thus re-opens the valve. The sparkler screws onto the lower end of the spout and can be adjusted by rotation to vary the gap between the cone and the valve seat in a known manner. The ball is sufficiently soft to prevent its being noisy in use and is retained in the spout by a bush (11) held frictionally in the tapered bore of the spout. <IMAGE>
Patent GB-2134119-A (GB)
Title: Luzopeptin E2
Inventor: CLARIDGE CHARLES A
IPC: A61P31/04
Filed: 1984-01-30
Abstract: A cyclic depsipeptide antibiotic designated luzopeptin E2 is produced by fermentation of Actinomedura luzonensis ATCC 31491 and isolation of the antibiotic free of substances coproduced therewith. Luzopeptin E2 exhibits antimicrobial activity and inhibits the growth of mammalian tumors.
Patent GB-2153231-A (GB)
Title: Leg bag for urine drainage
Inventor: CROSS DAVID EDWARD
IPC: A61F5/44
Filed: 1984-02-03
Abstract: A leg bag is provided which tightens progressively on the leg as the weight of urine in it increases. When the bag is empty, the device is relatively loose on the leg and correspondingly less likely to cause discomfort or interference with venous blood flow than the constantly tight prior art bags. Progressive tightening is achieved in one embodiment (Fig. 2) by using the urine chamber and a strap together to encircle the leg. Urine flow into the bag displaces apart two faces of the bag to bring its side edges closer together. In another embodiment (Fig. 1) the urine chamber (V) depends from a "Chinese finger" type gripping bandage (10). <IMAGE>