baber/WOPTO huggingface dataset:
Patent GB-2214924-A (GB)
Title: Cleaning compositions
Inventor: DAY PETER MICHAEL GEORGE
IPC: C09D9/00
Filed: 1988-02-01
Abstract: Cleaning compositions for removing residual ink and stencil material from a screen printing mesh. The compositions consist of a powder dispersed in an active solvent and having a viscosity of at least 40 poise at 21 DEG C as measured by Brookfield RVTD Viscometer spindle 4 at 20 r.p.m. The powder can be a clay or other suitable particulate material, and the active solvent is typically an N-alkyl-2-pyrrolidone, dimethyl formamide,  gamma -butyrolactone, 2-amino-2-methylpropan-1-ol or a glycol ether acetate. The present invention enables "haze" to be avoided following cleaning used printing screens, and without the use of caustic materials.
Patent GB-2204574-A (GB)
Title: Natural calcium carbonate ores purification
Inventor: GOLLEY CHRISTOPHER ROBIN LANGD
IPC: C09C1/02
Filed: 1988-05-10
Abstract: There is disclosed a process for purifying a calcium carbonate-containing mineral which process comprises the following steps:-   a) mixing the calcium carbonate-containing mineral with water and a dispersing agent to form a suspension containing from 60% to 80% by weight of the dry mineral; b) comminuting the suspension of calcium carbonate-containing mineral prepared in step a) to give a product containing not more than 5% by weight of particles which are retained on a sieve having a nominal aperture of 53 microns and not more than 50% by weight of particles which are smaller than 2 microns e.s.d.; c) subjecting the suspension containing from 60% to 80% by weight of the dry comminuted mineral prepared in step b) to froth flotation using a collector for disclouring impurities which colletor comprises a cation containing at least one long chain alkyl group having from 10 to 24 carbon atoms, to yield an underflow product containing the calcium carbonatecontaining mineral from which substantially all discolouring impurities have been removed; and d) further comminuting the underflow product of step c) to give a material of which at least 40% by weight of the particles have an equivalent spherical diameter smaller than 2 microns. g
Patent GB-2219521-A (GB)
Title: Heating matter
Inventor: DODSON CHRISTOPHER EDWARD
IPC: F27B15/10
Filed: 1988-06-08
Abstract: A method of heating matter comprises supplying a gaseous mixture, which is reactable to produce heat, at a temperature above that at which spontaneous ignition occurs to a heating zone such that the gaseous mixture reacts to provide a heated fluid flow in said heating zone, and supplying matter to be heated to said heating zone.
Patent GB-2209178-A (GB)
Title: Improved hot-dip galvanized coating for steel
Inventor: MILLER GEORGE T
IPC: C23C2/26
Filed: 1988-06-09
Abstract: A hot-dip galvanized coating for improved resistance welding of galvanized steel parts or sheets for use in the automative and appliance industries includes particles of a metal phosphide, and preferably ferrophosphorus particles, having a particle size of from 0.1 to 30  mu m, such particles being included in the galvanized coating while the zinz or zinc alloy is still molten. This causes nucleation of zinc crystals to occur. Since the melting point of the phosphide is substantially higher than that of zinc this permits the formation of a satin finish instead of the normal spangle finish. The phosphide particles may be present in an amount of 0.1-50% by weight of the zinc. The coating may be 0.08-2.8  mu m thick. The coating can also include up to about 40% by weight of the metal phosphide of an additional metal such as nickel, tin, aluminum or lead, which can be incorporated in the coating as discrete particles or deposited onto the surface of the metal phosphide particles.
Patent GB-2223594-A (GB)
Title: Improvements relating to load testing systems
Inventor: FRASER NICHOLAS ANTHONY
IPC: G01M99/00
Filed: 1988-08-13
Abstract: A load testing system for cranes and other lifting gear or for load bearing structures eg towers, bridges or ramps uses one or more rigid tanks (10) filled with liquid to act as loading weights. They are of modular size corresponding to standard freight containers and their corner fittings (11) enable them to be bolted together in a stack and/or a side-by-side group. Gauges (17) are provided at the ends to indicate the liquid content level and filling and emptying is via valved fittings (16) to which hoses can be attached. Each tank has evenly distributed lugs (12) with chain or wire pennants (13) to a common lifting joint (14). <IMAGE>
Patent GB-2209557-A (GB)
Title: Lock protection device
Inventor: BANHAM PETER
IPC: E05B17/20
Filed: 1988-08-30
Abstract: A device to prevent forcing of a spring-loaded bolt consists of a plate (2) attached to the outer face of a door (6) adjacent the door frame and at the level of the bolt. The plate has a limb (22) which projects outwards from the door (6), and which, when the door (6) is closed, lies in a channel created by inwardly curved portion (34) of plate (4), this arrangement blocks any pathway past the edge of the door for an attempt to force the bolt back by slipping in a flexible card. <IMAGE>
Patent GB-2231908-A (GB)
Title: Gardening aid
Inventor: PAYNE FREDERICK WALTER
IPC: A01G9/12
Filed: 1989-04-29
Abstract: A stay 16 is described for steadying a cane 14 in a plant pot 10. The stay 16 comprises a clip 16a for fitting onto the lip of the plant pot and an arm 16b extending from the clip 16a and onto which a cane 14 can be tied. <IMAGE>
Patent GB-2231813-A (GB)
Title: Emission control
Inventor: MA THOMAS TSOI-HEI
IPC: F01N3/20
Filed: 1989-05-17
Abstract: A method is described for reducing the light-off time of a catalytic converter which comprises exposing the matrix of the converter to an alternating magnetic field or to electromagnetic radiation having such a frequency that the particles of catalyst supported by the matrix are heated to the light-off temperature without a corresponding increase in the temperature of the entire matrix.
Patent GB-2233061-A (GB)
Title: Screw threads
Inventor: COLLINS JOHN
IPC: E02D17/08
Filed: 1989-06-20
Abstract: A modified "Acme" type of male and female thread combination has a single-start male thread (10) of machined steel and a single-start female thread (12) of cast nodular graphite iron. The crown (20) of the female thread (12) is machined but the flanks (22, 22) and root (24) are left un-machined. There is plenty of clearance left between the crown (14) of the male thread (10) and the root (24) of the female thread (12). This reduces cost and yet the screw threads are adequate for use in a trench-box strut. The feed per revolution is 20 mm.
Patent GB-2223259-A (GB)
Title: Security system
Inventor: MCKAY DONALD
IPC: E05B51/02
Filed: 1989-08-29
Abstract: A security system for premises comprises either a panel (2) as a cover to an opening of existing premises, such as an unoccupied house, or else a locker having a door in the form of a Panel covering an opening to the locker. The panel is securable by securing means (3) which interconnect the rear of the panel and the surround of the opening. The securing means are preferably bolts which are fluid actuable and fluid releasable by an obscure release mechanism (10, 10') the bolts being movable between a disengaged position and an engaged position wherein each bolt in the secured position is jammed between the opposed surfaces of the surround or retained in a complementary keeper. The release mechanism, eg master cylinders, is connectable to a compressor via front access points in the panel. <IMAGE>
Patent GB-2235367-A (GB)
Title: Driving disc for floor treating machine
Inventor: MONTAVON ERWIN
IPC: A47L11/164
Filed: 1989-09-01
Abstract: A driving disc for a floor treating machine comprises a disc element 1 for supporting a cleaning pad, a coupling element 2 for coupling the disc to a drive member of the floor treating machine, and a hollow, flexible tube 3 connected to both elements 1, 2. The tube may be made of rubber and may be inflated via valve 4. It may be connected to elements 1, 2 by an adhesive. The tube is found to reduce vibrations at relatively high rotary speeds. <IMAGE>
Patent GB-2232815-A (GB)
Title: Manufacture of electrical transducer devices with polymer films particularly infrared detector arrays
Inventor: TURNBULL ANDREW ALFRED
IPC: H01L37/00
Filed: 1989-10-11
Abstract: An infrared detector array or other electrical transducer device comprising an electrically-active film (10) of polymer material is manufactured with a pattern of electrodes (11) embedded at one face of the film (10). The electrodes (11) are formed on a support (4, 5) as a photolithographically defined pattern of deposited material. These electrodes (11) are then transferred to the film (10) by depositing the film material on the support (4, 5) and over the electrodes (11) and removing the support (4, 5) at least at the area of the electrodes (11). Fine-geometry patterns of thin electrodes (11) can be formed in the film (10) for charge detection at the film faces in piezoelectric, pyroelectric and ferroelectric devices. The bulk (5) of the support may be of glass. <IMAGE>
Patent GB-2237983-A (GB)
Title: Flexible carrier
Inventor: HULME WILLIAM RICHARD
IPC: A45C13/36
Filed: 1989-11-16
Abstract: A carrier suitable for attachment to a vehicle roof rack comprises a flexible, base carrier shell 1 and a flexible, top carrier shell 7, the top carrier shell 7 being arranged to be secured over the base carrier shell 1 to provide an enclosure. Straps 5 provided on the base carrier shell 1, cooperate with buckles 9 on the top carrier shell 7 to secure the top carrier shell 7 to the base carrier shell 1. The straps 5 also secure the carrier to a roof rack. <IMAGE>
Patent GB-2226940-A (GB)
Title: Aquarium
Inventor: ICHIKAWA MINORU
IPC: A01K63/04
Filed: 1990-01-03
Abstract: An aquarium tank (1) includes a frame open at least on the front and at the top, a tank (11) open at the top, an openable and closeable lid (21) hinged to the open top of the frame, a water treatment device (31) including a filtering mechanism (31, 36) and a pumping mechanism (39), and an electric device including an illuminating device, terminals and switches. The tank is accommodated in the frame. The water treatment device (31) is provided in the tank (1) and the electric device on the lid. The water treatment device has electric components connected to the electric device of the lid. <IMAGE>
Patent GB-2231350-A (GB)
Title: Allowing for expansion & renovating flat roofs
Inventor: SUGRE DENIS ROY
IPC: E04D11/02
Filed: 1990-05-08
Abstract: An old roof is renovated by securing plywood 14 over the hardboard 18 and felt lining 20 of the old roof. A first sheet 212 is adhered to the upwardly facing surface of the plywood 14 around the periphery of the sheet and along two intermediates lines running from end to end along the sheet. The next sheet 112 is then placed to overlap the sheet 212 slightly, and the sheet 112 is adhered to the plywood 14 in the same way as the sheet 12, and intermediate adhesive along the overlapping portions of the sheets 112 and 212 adheres those sheets together. A polyurethane coating 22 is applied over the sheets. The lack of all-over adhesion facilitates relative movement between the sheet and the roof. The sheets may be transparent to allow visual inspection that the adhesive is making proper contact at all points. <IMAGE>
Patent GB-2244947-A (GB)
Title: Cutting blades
Inventor: LEUNG KWOK HUNG
IPC: A45D29/06
Filed: 1990-06-14
Abstract: A set of cutting blades, particularly for use in a finger nail-cutting device, comprises an inner cylindrical tube 15 adapted to be rotated within an outer tube 16, which may also be cylindrical and a generally longitudinally extending slot 17, 18 in each tube. At least one edge of each slot is sharpened, the sharpened edges of the two slots cooperating upon rotation of the inner tube to sever material extending through the slots. The width W is 1-2 mms to allow entry of a nail but not of adjacent soft tissue; different sizes may be provided for different nail thicknesses. The tube 15 is rotatable by a motor (12, Fig 1) via gearing (13), in either direction if both edges of the slots are sharpened. to allow left- or right-handed use. In table-mounted form, only one edge of each slot is sharpened and the motor rotates in only one direction. A finger rest (20, Fig 1) and a fan to collect or expel clippings may be provided. <IMAGE>
Patent GB-2234836-A (GB)
Title: Remote monitoring system for containers
Inventor: HASEGAWA AKIO
IPC: H04Q9/14
Filed: 1990-07-26
Abstract: A remote monitoring system for containers including a central monitoring device 1, a plurality of key terminal stations 3, 4 for communication control and sub terminal stations 7, 13 each provided on the side of the container so that transmission of signals such as a control command and operation data is made by a serial communication using power lines 9, 10, is characterized in that said key stations and the sub stations store a registration number peculiar to the sub station and two or more transmission line systems are constituted on the same transmission line. Restoration and re-communication from a temporary disconnection due to movement of a container and maintenance are made automatically at a high speed. <IMAGE>
Patent GB-2235209-A (GB)
Title: A packaged combustible
IPC: C10L11/04
Filed: 1990-08-22
Abstract: A combustible package for setting up a fire comprises a self-supporting structure (16) of readily ignitable material such as a wooden lattice grating structure mounted on side supporting member which provides ventilation and supports discrete pieces of a less readily ignitable longer-burning combustible material such as coal or charcoal. The coal or charcoal may be contained in a bag or lie free on the wooden lattice. Preferably there is a firelighter (17) attached beneath the wooden lattice to aid in ignition. The whole package may be contained in a cardboard box, the front of which unfolds to make the firelighter readily accessible. The cardboard box may also be ignited and does not have to be removed. The shape of the package may be adapted to fit in domestic firegrates and barbecues. Alternatively, the whole package may be wrapped in any suitable packaging material. <IMAGE>
Patent GB-2237315-A (GB)
Title: Land improvement
Inventor: BULLIVANT ROGER ALFRED
IPC: B09B1/00
Filed: 1990-08-29
Abstract: A method of improving land, for example an infill site, comprises surrounding the land with a sub-terranean continuous relatively thin wall (10) which is formed in situ by displacing soil to form a void and filling the void with a gas and water impervious material, forming a plurality of columns (20) filled with a liquid and gas permeable material in the land surrounded by the wall with at least some of said columns located as close to the wall that liquid therein can permeate through the soil to moisten the neighbouring wall, and covering the surrounded land with an impermeable barrier sheet (18, 28). <IMAGE>
Patent GB-2237715-A (GB)
Title: Inductively heatable apparatus
Inventor: NOLLE EUGEN
IPC: B29C48/03
Filed: 1990-10-24
Abstract: Inductively heatable apparatus, particularly for plastics extruders, with a housing 1 of steel and an opening 1a for the passage of the material to be heated wherein to produce a magnetic field has laminated iron cores 2, 2a, 3, 3a coupled magnetically to the housing wherein the laminated iron cores are E-shaped, with the arms of the cores directed to the housing and at least one thereof supporting a coil, the G cores being disposed symmetrically about housing 1 and urged towards it by resilient clips or casing parts 8, 9 tensioned by nuts and bolts 13, 17. Thermal insulation 7 may be disposed between extruder housing 1 and the cores. <IMAGE>
Patent GB-2253439-A (GB)
Title: Variable valve timing mechanism
Inventor: SAUL M K
IPC: F01L13/00
Filed: 1990-12-18
Abstract: A valve operating profile 6 is formed on arm 5 pivotted on a shaft 7, so that when the shaft is moved parallel to the camshaft 2, a different part of the valve operating profile 6, is presented to the cam 4, giving a different valve lift and opening period. I.c. engine intake and exhaust valves may be controlled in dependence on engine load and speed. The arm 5 may be located by compressible elements (10, Fig. 7) between collars (11) on the movable shaft 7. The arm 5 may engage a valve tappet 2 or have a portion beyond the shaft 7 which operates the valve. <IMAGE>
Patent GB-2242689-A (GB)
Title: Refining titanium
Inventor: YOSHIMURA YASUNORI
IPC: C01G23/02
Filed: 1991-01-16
Abstract: Titanium is refined by reacting crude titanium with titanium tetraiodide to form lower valent titanium iodides, and then thermally decomposing those lower valent iodides to form pure titanium and to regenerate titanium tetraiodide. <IMAGE>
Patent GB-2242897-A (GB)
Title: High critical temperature binary superconducting materials
Inventor: GAZZANA PRIAROGGIA PAOLO
IPC: C04B35/45
Filed: 1991-01-21
Abstract: A superconducting material of high critical temperature, viz. higher than the liquefaction temperature of helium, consists of a binary intermetallic compound, possibly oxidized, of two metallic elements (T)x(N)yOz wherein (T) is a transition metal and (N) is a normal metal, x = y+/- 10% y z/x <3. Preferred compounds are Al Co, Al2Co2O3, Al2Co2O, AlNi, Al2Ni2O, Al2Ni2O3, AlFe, Al2Fe2O, Al2Fe2O3, AlCuO2, Al2Cu2O5, ZnCuO2 and Zn2Cu2O5.
Patent GB-2253542-A (GB)
Title: Improvements in and relating to telephone systems
Inventor: COOPER BRIAN
IPC: H04Q3/00
Filed: 1991-03-07
Abstract: An apparatus to control access from individual telephone extensions to public or private telephone networks. Means are provided to effect a connection between an extension and a network or to prevent the connection occurring. A user of the extension enters an authorisation code which is received by authorisation code receiving means, and the code is compared with one or more access-enabling codes. If the code entered by the user is recognised by the apparatus as entitling access to the network by the user of the code the extension is connected to the network. If the code is not recognised by the apparatus, a connection of the extension to the network is not made. Processing means in the apparatus can record details of calls made and attribute to each code such information. The apparatus is suitable for use with other communications media such as facsimile machines, telexes, and radio communication channels. <IMAGE>
Patent GB-2244472-A (GB)
Title: Tissue dispenser
Inventor: WELTON DEREK EDWIN
IPC: A47K10/38
Filed: 1991-05-24
Abstract: A tissue dispenser is made by fitting a core-less roll 24 of tissue, such as a toilet roll with the cardboard core removed, within a refillable container 10 having a top 20 with a central hole 22. The end of the roll of tissue which is radially innermost in the roll is drawn out axially from the roll and through the hole 22. Thus, a required length of tissue strip can be drawn from the roll simply by pulling the projecting end of the strip and can be torn by lateral displacement of the gripped end. The container may be of zipped fabric (Fig. 5), may be triangular (Fig. 6), may have a sheet steel part fitted into a rubber base (Fig. 7), may be of two blow-moulded pans (Fig. 8) with the hole 22 in a side wall, and may fold flat (Figs. 9 to 12). The core-less roll may be flattened and placed in an elongate container (Fig.3) to prevent roll rotation. A card box-blank is shown (Fig. 4). <IMAGE>
Patent GB-2246636-A (GB)
Title: Nuclear quadrupole resonance imaging
Inventor: ROMMEL EBERHARD
IPC: G01R33/44
Filed: 1991-07-20
Abstract: In a nuclear quadrupole resonance (NQR) imaging method, particularly suitable for polycrystalline powders, in which an RF pulse is applied in the absence of any other externally applied magnetic field and the NQR signal is detected over a measurement period, the RF field amplitude is position dependent with a constant gradient, and the signal amplitude including its sign is determined for each detected NQR frequency. Measurements are performed at different flip angles, e.g. by altering the RF pulse length, RF gradient or overall pulse amplitude. The resulting set of signal amplitudes is subjected to Fourier transformation to enable reconstruction of the density distribution of the observed nuclei along the RF gradient direction. Since no imposed magnetic field is required the apparatus may be compact, and not all of the sample needs to be accommodated within the apparatus; furthermore Zeeman splitting effects do not have to be considered. <IMAGE>
Patent GB-2253117-A (GB)
Title: Capacitor microphone cartridge
Inventor: KU JA BONG
IPC: H04R1/22
Filed: 1991-12-18
Abstract: The cartridge has a dielectric material plate 20 coated with electrostatic material which is separate from a diaphragm 5. The plate 20 is arranged on top of a fixed electrode 16 with the diaphragm 5 beneath the fixed electrode. Several apertures 21 are peripherally provided in the fixed electrode 16 for controlling the directional and frequency characteristics. The diaphragm 5 is made thinner in comparison with conventional ones whereby the frequency characteristic is improved. The dielectric material plate 20 is made thicker than conventional whereby static electricity reserving capacity is enhanced. Such an arrangement reduces the number of parts in the cartridge and simplifies manufacture. <IMAGE>
Patent GB-913699-A (GB)
IPC: F02K1/60
Abstract: 913,699. Deflecting propulsion jets in aircraft. GENERAL ELECTRIC CO. Dec. 13, 1960 [Dec. 18, 1959], No. 42781/60. Class 4. A thrust reverser for an aircraft jet propulsion engine, has a pair of blocker doors 11, 12 pivotally mounted adjacent the exhaust nozzle of engine 20 on pins 13, 14 for deflecting the exhaust gases, and having actuating means having a motion multiplying linkage 39, 34, 29 and 41, 35, 31 for both translating and rotating the doors 12, 11 respectively, to their operative and non-operative positions. Pressure admitted to cylinders 15, 16, Fig. 3, moves sliders 36 (only one shown) to the left in Fig. 1 in guides 38 to pivot bell cranks 34, 35 about pins 42, 43 to rotate doors 11, 12 about pins 13, 14 through their crossed extensions 31, 29 respectively. Pin 13 carries rollers 59, 61, Fig. 4, slidable in channelled members 53, 54 on beam 22 so that the doors are also moved rearwardly, Fig. 2 (not shown). In the operative position, door surfaces 25, 26 and members 51 on cranks 34, 35 abut. The pins 42, 43 are at an angle to the longitudinal vertical plane of the engine and pivots 44, 45, 46, 47 are ball joints and extensions 29, 31 include hinges 48, 49 to accommodate expansion and contraction of the doors and to minimize the space required for the reverser. In the non-operative position the linkage 39, 34, 29 and 41, 35, 31 is housing in recesses 32, 33 in the doors, Fig. 4.
Patent GB-2264513-A (GB)
Title: Automatic sterilizing device for flush toilet or urinal
Inventor: LIAO SU-LAND
IPC: E03D5/10
Filed: 1992-02-20
Abstract: An automatic sterilizing device for a flush toilet or urinal, which device can discharge a small volume of flush water first upon sensing a user having used it, and then discharge a large volume of flush water with a given volume of sterilizing liquid so as to wash away any urine sediment in the toilet or urinal completely, comprises a control circuit to control a solenoid valve for controlling a given volume of flush water, and to control a sterilizing unit; the sterilizing unit including a sterilizing liquid container which is controlled with a liquid pump to discharge liquid. The liquid pump is controlled with a control circuit. During a large volume of water being discharged, the liquid pump can pump and discharge a suitable volume of sterilizing liquid to mix with the flush water to wash and sterilize a urinal simultaneously.