baber/WOPTO huggingface dataset:
Patent GB-1075446-A (GB)
Title: Improvements in or relating to fuse boxes
IPC: H01H85/20
Filed: 1963-12-02
Abstract: 1,075,446. Fuse boxes. F. G. ROCHE. Dec. 2, 1963 [Dec. 18, 1962], No. 47547/63. Headings H2E and H2G. Fuses 5 are held in the lid 1 of a fuse box, between flat-faced contact blocks 6, 11, which when the lid is mounted on to the base 3, are made to contact flat-faced contact blocks 17 in the base, leaf springs 19; secured to the base contacts 17 ensuring that a good contact is obtained between the lid and the base contacts. Each fuse is detachably mounted between the blocks 6 and 11 by means of a spring-biased block 10. The screws 22 securing the leaf springs to the base contacts 17 also act to secure the leads from the circuit to be protected, which are led in through holes 24 in the base. The lid is secured by screws 2 to the base, which may be attached to a vehicle or other machine by screws 4.
Patent GB-1454085-A (GB)
Title: Zinc oxide light emitting diode
IPC: H01L21/00
Filed: 1973-10-11
Abstract: 1454085 Luminescent materials and uses thereof MINNESOTA MINING & MFG CO 11 Oct 1973 [12 Oct 1972 10 Sept 1973] 47612/73 Heading C4S [Also in Division H1] An L.E.D. comprises a single crystal of ZnO which exhibits a fluorescent efficiency of not less than 0.001 in a band between 3700 and 4000 at 77 K., and includes a substantially ohmic cathode 36 and a rectifying anode 34, the diode emitting violet light at room temperature. The cathode may be of low work function In, or Zn or tin oxide and/or indium oxide and preferably of work function # the work function of ZnO. The anode may be high work Cu, Ag, Au, Pt or C and ultra-violet responsive phosphor 30 may convert the L.E.D. emission. Jig 38 facilitates contact formation. Fig. 4 (not shown) is a coherent radiation source with reflector layers (60), (62), and Au anode (64). Mechanisms are discussed including decay of free excitons, and donors are provided to compensate acceptor concentration of <10 p.p.m. by heating in the presence of ZnS for example for Zn diffusion, followed by quenching. Crystals may be thin slabs from a single crystal or naturally grown and selected by laser or Hg arc excitation according to efficiency. Operation may be A.C. or D.C., the resistivity may be 1 # cm. for 10<SP>17</SP> electrons/c.c. and reduction of acceptor states provided by Li and Na and in amount <10<SP>16</SP>/c.c. is disclosed. Crystal orientation is discussed and surfaces preferably shaped to minimize internal reflection and to focus. Green fluorescence of as grown ZnO may be countered by excess Zn doping and removal of an outer layer. Detailed examples specify voltages and current densities, band gaps, dimensions and further electrode details, including as examples only, a plurality of point contacts provided by Au particles in silicate binder, Au needles with blue ZnS phosphor on the opposite crystal face, four anode dots, gold paste over a blue organic phosphor on the oxygen face, the same phosphor on the opposite face increasing brightness, Au coated silica, rough 10Á Au spheres, and cleaved or otherwise mechanically deformed evaporated films. Applications are specified. Reference is included to Specification 1,452,515.
Patent GB-1499120-A (GB)
Title: Filter
IPC: B01D33/17
Filed: 1975-11-20
Abstract: 1499120 Filter apparatus BIRD MACHINE CO INC 20 Nov 1975 [16 Dec 1974] 47806/75 Heading BID  A filter for separating solids from a slurry comprises a filter medium; means for feeding slurry onto the medium whilst the latter is horizontal; suction means for removing filtrate through the filter medium; cake-treating means to apply treating liquid to the resulting solids cake on the medium; and moving means to relatively move the medium and feed, suction and cake-treating means to subject the medium successively to the feed means, then the suction means, then the cake treating means and then the suction means; the filter further comprising inhibiting means 6 operative to inhibit drainage of slurry liquid as filtrate through the medium to allow an initial cake to be formed by settling on the medium; removal means to remove liquid and unsettled fine solids from above the settled cake; and control means to render successively operative the inhibiting means and removal means before the first action of the' suction means. A specific form of the filter which is described wherein the inhibiting means comprises means to apply back flushing liquid to flow upwardly through the medium whilst the slurry is settling above the medium forms the subject of U.K. Specification 1499119. The filter may comprise a moving filter medium, e.g. it may be a horizontal rotary pan or table filter or a moving band filter, or the medium may be stationary with the feed, suction and cake-treating means moving relative thereto. The illustrated embodiments relate to a horizontal rotary pan filter and a moving band filter, both of the type described in U.K. Specification 1499119 in relation to the use of backflushing inhibiting means. Reference is also made to a rotary, horizontal table filter wherein the slurry is retained on the filter medium table by a belt surrounding the table, except at a cake removal section whereat cake is scraped from the table. The liquid above the settled cake may be removed from above the cake by a fixed suction pipe. Alternatively, two surrounding belts may be used comprising a lower belt covering the table side up to cake level and an upper belt abutting thereto. The belts may be separated to enable the slurry liquor to flow out between them.
Patent GB-1259920-A (GB)
Title: Improvements in chopsticks
Inventor: CHEW YEE LAIN
IPC: A47G21/06
Filed: 1970-10-08
Abstract: 1,259,920. Chopsticks. YEE LAIN CHEW. Oct. 8, 1970, No.47960/70. Heading A4A. A chopstick has one end part formed to provide a surface which substantially prevents slipping of food held thereon. The end may be serrated, roughened, fluted or made bulbous. In Fig. 2 a portion 1 of the stick 4 is tapered towards the bulbous end 2. The chopsticks may be made of ivory, plastics or wood.
Patent GB-1209926-A (GB)
Title: Improved imaging material
Inventor: PARKER KONRAD
IPC: C08J7/043
Filed: 1967-10-23
Abstract: 1,209,926. Coated sheet material. ADDRESSOGRAPH-MULTIGRAPH CORP. 23 Oct., 1967. No. 48104/67. Heading B2E. An image-receiving material for receiving ink-marking comprises a plastics surface having a first lacquer coating applied thereon and a second coating consisting of a copolymer of vinyl acetate and vinyl pyrrolidone whereby ink markings become firmly fixed to the surface. The second coating may be formed by application of a treating agent to the surface in amount 0.3-13 g./sq.m. and the composition may comprise 1-20% of the copolymer, which may comprise 5-55% of vinyl pyrrolidone. The surface may be etched before application of the coating, for example, by exposure to an electrical discharge. The coatings may be applied by a roller or bead coating. The surface may .be of cellulose acetate, cellulose nitrate, cellulose acetate butyrate, cellulose acetate propionate, polyvinylidene chloride, polyvinyl chloride, polyurethane, polystyrene, polymethylmethacrylate, acrylonitrile-butadiene-styrene copolymer, phenolformaldehyde, melamine, polyester or polycarbonate.
Patent GB-1374973-A (GB)
Title: Manufacture of composite plastics structures
IPC: B29C48/10
Filed: 1970-10-09
Abstract: 1374973 Extruding laminar material BAKELITE XYLONITE Ltd 8 Oct 1971 [9 Oct 1970] 48141/70 Headings B5A and B5N  A plastics laminate is continuously manufactured by passing an unbonded laminar structure 36 comprising a reinforcing layer 37 and at least one thermoplastic layer, arranged so that liquid cannot contact the interface between the layers, into a liquid 33 wherein the pressure urges the layers together to form the laminate 40 whilst the thermoplastic layer is at least in the softened state. The reinforcing layer 37 may be a thermoset or thermoplastic resin, carbon, a metal, glass or a mineral. The thermoplastic material may be polyethylene, polypropylene, p.v.c. polymethyl methacrylate, nylon, polyethylene terephthalate or a styrene/acrylonitrile copolymer. The edges of the layers in the unbonded structure may be clipped at intervals along the length or continuously clamped or sealed or, as shown, the reinforcing layer may be within a flattened tubular web which is extruded from a die 35, the construction of which is shown in Fig. 2 around the reinforcing layer. More than one reinforcing layer may be used. A further layer of thermoplastic material may be placed between these reinforcing layers or a barrier layer may be used to enable the tubular web to be slit along one or both edges to provide a laminate having a reinforcing layer on one side only. A folded layer of reinforcing material may also be used. The liquid 33 may be an oil, a liquid wax or a liquid metal. Roller 31 may have a release coating of p.t.f.e. or may run in a reservoir of release agent held under the insert 34 (Fig. 6, not shown). The liquid may be heated and may have a barrier layer on its surface. A continuous conveyer band may be used . to support the unbonded structure/ laminate as it passes round the roller. In another apparatus (Figs. 1 and 4, not shown) the reinforcing layer is drawn upwardly through the die for a tube extruder which is immediately below the treatment unit containing the body of liquid. If the hydrostatic pressure exerted by the liquid is insufficient the pressure may be increased by applying gas under pressure to the surface of the liquid. To ensure reliable bonding the pressure within the unbonded structure may be reduced before it passes into the liquid. In the examples the reinforcing layer is a glass mat around which a polypropylene flattened tubular web is extruded.
Patent GB-1286497-A (GB)
Title: Temperature-compensated gravity meter
IPC: G01V7/08
Filed: 1969-10-01
Abstract: 1286497 Photo-electric measurement; measuring gravity; temperature compensation CONTINENTAL ELEKTROINDUSTRIE A G [trading as CONTINENTAL ELEKTROINDUSTRIE AG ASKANIA-WERKE] 1 Oct 1969 [16 Oct 1968] 48332/69 Headings G1A, G1N and G1W An instrument for determining the force of gravity comprises a mass 10 suspended by main spring 11 and an adjustable auxiliary spring 12 within a housing 1. The mass carries an apertured diaphragm 17 which forms part of the photo-electric system of lamps 15, lenses 16, 18 and photo-cells 19, 20. The photo-cells are oppositely connected so that movement of diaphragm 17 causes the cells to be illuminated unequally and a voltage supplied to amplifier 21. The amplifier output feeds both meter 23 and coil 24A secured to the mass and surrounded by magnet 25 so that the mass is restored to its original position. A further coil 24B is supplied with D.C. from control device 31 which includes a bridge having temperature sensors (copper resistors) in two arms so that variations in spring length due to a temperature change are nullified. The interior of the housing is maintained at near constant temperature by heaters 4, 5, 6 controlled by thermostat 7. An electrostatic system may replace coils 24 and magnet 25.
Patent GB-1079706-A (GB)
Title: Movable mine roof supports
IPC: E21D23/00
Filed: 1964-11-30
Abstract: 1,079,706. Self-advancing pit-props. STAMICARBON N.V. Nov. 30, 1964 [Dec. 2, 1963], No. 48631/64. Heading E1E. A mine roof support comprises a pair of prop units, connected above floor level, with runners 18, 19, 18', 19' engaging spaced parallel rails 6, 7, 6' ,  7' on a central structure 5. One arm 16 joining runners 18, 19 passes over a piston-and-cylinder-unit 8, 10 mounted on the roof support and the other arm 16' passes under it. In a modification there are three guide rails on the structure 5, a runner of each unit engaging an outer rail and part of the middle one, which is lower than the other rails, and unit 8, 10 being mounted between them and above the middle rail.
Patent GB-1105347-A (GB)
Title: Dispensing valve construction
IPC: F16K3/24
Filed: 1966-10-31
Abstract: 1,105,347. Pressurized dispensing containers. AEROSOL INVENTIONS & DEVELOPMENT S. A. Oct. 31, 1966 [Feb. 2, 1966], No.48658/66. Heading F1R. [Also in Division F2] Valve for hand-held dispensers has a cupshaped valve member 30 of resilient plastics material slidable in a bore 28 at the junctions of an outlet passage 26 and an inlet passage (12) Fig. 1 (not shown). The valve member is connected with a press-button plunger 38 through a reduced stem 36. The plunger has a projecting bead 42 engaging the bore 28 and located, in closed position of the valve, by a stop 44 on the housing 10. The valve is spring-loaded to this position. The housing 10 may also be of plastics material e.g. polyethylene, and is sealed to the dispenser by a gasket (22) and retained by a turnedover part (20) of the housing. The spring 32 is large enough to exert some radial pressure on the member 30.
Patent GB-1448882-A (GB)
Title: Machine for manufacturing tubes by helically bending a metal  strip carrier converting equipment
IPC: B21C37/12
Filed: 1973-10-18
Abstract: 1448882 Making helical seam tubing SOC ANON DES ATELIERS DE CONSTRUCTION DE LA MEUSE 18 Oct 1973 [15 Dec 1972] 48689/73 Heading B3E Apparatus for making helical seam tubing includes a bender having two outer parallel bending members (one shown as a set of rolls 3) mounted in a frame 2 and a third inner bending member (rolls 13) on one-end of a beam 12 mounted on a horizontal pivot by bearing 10 so that the position and inclination of the beam can be controlled to control the spacing and relative inclination of the outer and inner bending members. As shown, bearing 10 is hung from the rod of a jack 7, and is connected by strip 14 to a rod 15 and weight 16, Fig. 3, the rod having an arm 19 operating microswitches 20a, 20b, controlling the jack, so that bearing 10 is maintained at a height determined by the position of a slider 21 supporting the switches and adjustable by hand wheel 22. The end of the beam 12 remote from bending member 13 is supported on the rod of a jack 24, and is connected by flexible strip 26 to rod 27 and weight 28, the rod having an arm 30 operating microswitches 31a, 31b, controlling jack 24, so that the end of beam 12 is maintained at a height determined by the position of a slider 32 supporting the switches and adjustable on slider 21 by hand wheel 34. Thus operation of wheel 22 raises or lowers the beam bodily, while operation of wheel 34 alters the inclination of the beam.
Patent GB-1401103-A (GB)
Title: Engine exhaust gas recirculation system
IPC: F02M25/07
Filed: 1973-10-19
Abstract: 1401103 Recirculating exhaust gases FORD MOTOR CO Ltd 19 Oct 1973 [3 Nov 1972] 48823/73 Heading F1B All the exhaust gas from a selected number of cylinders of an I.C. engine less than the total number of cylinders is recirculated to the air intake 26 of the engine and none of the exhaust gas from the remaining cylinders is so recirculated so that a constant proportion of the exhaust gas is recirculated during at least part of the load range of the engine. Exhaust gas from manifold 44 passes via silencer 48, valve 54 and heat exchanger 50 to air intake 26 except under wide open throttle conditions, when valve 54 moves to position 56 to deflect the exhaust gas along branch 52 to mix with exhaust gas from manifold portions 40 and 32 before passing through catalytic reactor 34 and silencer 38.
Patent GB-1350501-A (GB)
Title: Method for preparing the view-screen structure of a cathode-ray tube
IPC: H01J29/28
Filed: 1971-10-21
Abstract: 1350501 Coated luminescent screens R C A CORPORATION 21 Oct 1971 [28 Dec 1970] 48933/71 Heading B2 [Also in Division H1] A method for providing a black carbon coating on a light reflective metal film covering a c.r.t. phosphor layer (e.g. mosaic of areas such as dots) comprises heating the phosphor layer and metal film to between 50‹C and 75‹C, depositing on the heated film a coating of an organic volatilizable film-forming material from an aqueous dispersion, and depositing upon the coated metal layer an overcoating of carbon particles deposited from a suspension substantially free of organic and inorganic binders. The structure reduces heat reflection to the shadow mask of a three beam colour TV c.r.t. for example. Reduction of electron scattering and secondary emission is also instanced. The organic film forming material may be an acrylic polymer, and the suspension may be amorphous carbon and graphite particles in an aqueous vehicle. There may be a further volatizible film between the metal film and the phosphor layer, and the structure may be heated to 400 to 450‹C in air to volatilize both films. The aqueous dispersion of the organic film-forming material and the carbon particle suspension are preferably deposited by spraying. The metal layer may be a 2500A Al film. In embodiments, the aqueous acrylic resin emulsion may contain, as well as solids, deionized water and red dye solution, amounts being specified, the latter facilitating later inspection. The resin emulsion may be principally ethyl acrylate, copolymerized with equal minor amounts of acrylic and methacrylic monomers and polymers. The carbon suspension may include, in specified amounts, aqueous suspension of colloidal graphite, deionized water, aqueous dispersion of carbon black, containing 0.5 wt. % dispersing agent such as sulfonated lignin and 0.1 wt. % wetting agent such as polyoxyethylene lauryl ether. Coating may be by automatic machinery. Another example includes a spray of acrylic resin solution, deionized water and Rhodemine dye powder and the barrier layer may also be an aqueous emulsion of polystyrene. The metal film has pores enabling escape of gases during baking. The carbon may be in toluene, xylene or dispersed in water, preferably with wetting and dispersing agents. Carbon and Al coatings are preferably 2000 to 3000A thick.
Patent GB-1174477-A (GB)
Title: Method of Decontamination of Media Containing Fission Products.
Inventor: MUSIKAS CLAUDE
IPC: C01G55/00
Filed: 1967-10-30
Abstract: 1,174,477. Removal of fission products. COMMISSARIAT A L'ENERGIE ATOMIQUE. 30 Oct., 1967 [3 Nov., 1966], No. 49152/67. Heading G6R. [Also in Division C1] Fission products, in particular ruthenium, are removed from solution by oxidation to the heptavalent state, followed by liquid-liquid extraction with an organic solution of a quaternary ammonium salt in an inert solvent. Irradiated plutonium-aluminium alloy is treated with sodium hydroxide solution, sodium hypochlorite added as oxidizing agent, and the solution contacted with a solution of trilaurylmethyl-ammonium chloride in xylene or carbon tetrachloride. Ruthenium is recovered from the organic solution by treatment with a basic solution containing ethanol. Graphs are given showing the effect on the ruthenium partition coefficient of variations in the concentration in the aqueous phase of NaOH, NaClO, and chloride, nitrate, aluminate, and nitrite ions. Another quaternary ammonium salt which may be used is tricaprylmethylammonium chloride, and a nitrate may be used in place of a chloride; other suitable oxidizing agents are potassium periodate and sodium hypobromite. In Example I, an effluent is decontaminated by the removal of ruthenium and technetium, and in Example II pure Ru 106 is separated from a fission product solution containing also technetium. Reference is also made to the processing of plutonium targets clad with aluminium in the preparation of transuranic elements.
Patent GB-1201042-A (GB)
Title: Method and device for electrophotographic charging.
IPC: G03G15/02
Filed: 1967-10-30
Abstract: 1,201,042. Electrostatic charging apparatus. ADDRESSOGRAPH-MULTIGRAPH CORP. Oct.30, 1967 [Nov.7, 1966], No.49241/67. Heading G2H. An apparatus for electrostatically charging a sheet 10 having a photo-conductive layer 12 on a support 14 has primary charging electrodes 18, 20 and a modulating electrode 30. The electrode 18 has a fine conductive wire 22 surrounded by a conductive shield 24, while the electrode 20 has a fine conductive wire 26 surrounded by a shield 28. The wire 22 is connected to a negative high potential D.C. source 23, e.g. 4,000-6,000 volts while the wire 26 is connected to a similar but positive high voltage source 25. The modulating electrode 30 has a wire 32 connected to the source 25. The modulating electrode lowers the primary charge by 10 to 20%. This is stated to neutralize peak concentrations of charge and lower the primary voltage so that upon exposure exposed areas reach a lower charge level to minimize toner attraction in background areas. The primary charge may be imparted by a roller. Filamentary plastic material (66) Fig. 2 (not shown) guide the sheet being charged out of co ntact with the charging wires.
Patent GB-1374169-A (GB)
Title: Linearly working pressure gas driven motor
IPC: F01B17/02
Filed: 1972-10-26
Abstract: 1374169 Punching; shearing, forging ATLAS COPCO AB 26 Oct 1972 [12 Nov 1971] 49327/72 Headings B3W and B3H [Also in Division B5] A punching or, as shown, a high velocity cropping tool 14 is mounted on a piston-rod 13 of a pressure gas driven piston 12, the piston-rod 13 also supporting a retard piston 27 which moves in a hydraulic fluid chamber 26, the fluid flowing freely past the piston during the major part of the working stroke but being restricted when the piston enters portion 28 of the chamber 26 at the end of the working stroke. In the rest position shown, pressure air is supplied uia inlet 18 and chamber 23 to charge chamber 17 to act on a widened portion 25 of the piston-rod against the action of a return spring 15. To initiate a working stroke, pressure gas is supplied via inlet 19 to the drive chamber 16 to act on the piston 12. As the piston moves down pressure gas also enters the chamber 16 from chamber 17. When the piston covers ports 22 it begins to compress gas ahead of it and simultaneously the retard piston 27 enters the chamber portion 28 and absorbs the excess energy which remains when the punching or cropping is completed. The action of the retard piston also protects the tool during no-load strokes and can be used thus in forging and in metal powder compacting. The rate of retardation may be varied by giving the chamber 28 or varying cross-section (Figs. 3 and 4, not shown). The chamber 26 may include a restricted portion 29 above the piston 27 for retarding the return stroke. The chamber 26 and piston 27 may alternatively be mounted on the piston-rod 13 below the piston 12, Fig. 2 (not shown).
Patent GB-1057948-A (GB)
Title: Production of photographic images
Inventor: MUELLER HERBERT
IPC: C08G79/02
Filed: 1963-12-13
Abstract: 1,57,948. Photographic silver halide materials and processes. AGFA A. G. Dec. 13, 1963 [Dec. 17, 1962], No. 49357/63. Heading G2C. High contrast images are produced in an exposed silver halide emulsion containing at least 50 mol. per cent silver chliride, by development in a formaldehyde - containing developer in the presence of the reaction product of a polyoxyalkylene glycol and a phosphoric acid derivative of the formula: - wherein R1 and R2 represent alkyl, phenyl, alkylphenyl, halo-phenyl or phenylalkyl groups, or R2 represents hydrogen, or R1 and R2 together with the nitrogen atom complete a pyrrolidine or piperidine ring and X is chlorine, bromine or an alkoxy group. The polymeric reaction product may be in the silver chloride emulsion layer or in the developer.