baber/WOPTO huggingface dataset:
Patent GB-1004390-A (GB)
Title: Improvements in or relating to sulphidic phosphors which are insensitive to copper and nickel contaminations
IPC: H01J29/20
Filed: 1962-10-04
Abstract: Method of manufacturing a sulphidic phosphor which is insensitive to copper and nickel ion contaminations comprises coating the phosphor particles by precipitating thereon at least one compound having reducing properties and heating the coated particles, the compounds having reducing properties effective to reduce any copper or nickel ions present to the metallic state. The coating can be effected by contacting the phosphor particles with a liquid containing sodium phosphate, sodium hydrogen phosphite and barium nitrate, zinc sulphate and lead acetate, or other suitable barium, zinc or lead salt.  The amounts of phosphate and phosphite present in the liquid are in an equivalent weight value of from 50 : 50 to 90 : 10.  The coated particles are dried at a temperature below 105 DEG  C., preferably 90-100 DEG C. Coatings of 0.5% and 0.05% by weight of phosphor are referred to. The phosphor can be silver activated zinc sulphide.
Patent GB-1166799-A (GB)
Title: Novel Thermoplastic Elastomeric Compositions
Inventor: BREEN ADRIAAN WOUTER VAN
IPC: C08L95/00
Filed: 1968-08-07
Abstract: 1,166,799. Block copolymer-bitumen compositions. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 7 Aug., 1968, No. 37702/68. Heading C3P. A thermoplastic elastomeric composition comprises (a) a block copolymer of the formula A-B-A where each A is a polymer block of a monoalkenyl aromatic hydrocarbon and B is a polymer block of a conjugated diene hydrocarbon, the average molecular weights of the A blocks being 2000 to 100,000 and those of the B block being 25,000 to 500,000, (b) an aromatic asphaltic bitumen having a ratio of carbon atoms to hydrogen atoms in the range of 0.60 to 1.25 and a penetration index of at most zero, the amount of bitumen being 5 to 50% of the weight of the block copolymer-bitumen mixture, and optionally (c) fillers (reinforcing such as carbon black, and non-reinforcing such as whiting), antioxidants, antiozonants and extender oils which are naphthenic, aromatic or polymeric. In the examples poly(styrene-6-butadiene-bstyrene) is mixed with various commercial aromatic asphaltic bitumens, naphthenic and aromatic extending oils, whiting, styrenebutadiene random copolymer, and polystyrene.
Patent GB-1155572-A (GB)
Title: Adhesives for Tyre Cords
IPC: C08J5/06
Filed: 1966-08-23
Abstract: 1,155,572. Aqueous adhesive compositions. BRIDGESTONE TIRE K.K. 23 Aug., 1966 [28 Aug., 1965; 9 Aug., 1966], No. 37789/66. Heading C3P. [Also in Division D1] A water base composition for adhering synthetic fibres to rubber comprises 1 to 35% by weight of resorcinol formaldehyde resin, 5 to 90% by weight of a latex of a high polymer having epoxy groups and unsaturated chemical bonds, the molecular weight of which being more than 8000 and the epoxy equivalent weight of which being less than 3000, and less than 94% by weight of rubber latex, all percentages being solid weight per total solids, the mole ratio of resorcinol to formaledehyde in said resin being between 1 : 0À2 and 1 : 7 and the total solids content of the adhesive being 1 to 40% by weight. Suitable high polymers include butadiene-glycidyl methacrylate copolymers and butadiene-styrene-glycidyl methacrylate terpolymers. Suitable rubber latices include butadiene-styrene copolymer, butadiene-styrenemethacrylic acid terpolymer, butadiene-styrenevinyl pyridine terpolymer, and polychloroprene latices. The compositions may also contain lower molecular weight epoxy compounds such as epoxy resins and epoxy novolak resins. The compositions may also contain adhesion promoting additives such as dimethyl, diethyl, dibutyl or dioctyl phthalate, benzyl benzoate, dibutyl maleate, dioctyl maleate, dioctyl sebacate, tricresyl phosphate, glycerol triacetate, diethylene glycol diacetate, biphenyl, benzophenone, and pentaerythritol tetrapropionate.
Patent GB-1515577-A (GB)
Title: Electrical apparatus for supplying power at variable voltage and frequency
IPC: H02M7/48
Filed: 1975-09-16
Abstract: 1515577 Power supply systems; control of A.C. motors; inverters MASSACHUSETTS INSTITUTE OF TECHNOLOGY 16 Sept 1975 [16 Oct 1974] 37948/75 Headings H2H H2J and H2F  A power supply unit 104A1 comprises N stages connected in cascade, each stage having a voltage source B1-1 and switches S1-1 to S4-1 which enable the potential at an output terminal B to be positive, negative or equal to the potential at an input terminal A, the voltage source in at least one of the stages consisting of an assembly of sources the interconnection of which may be changed to vary the output voltage and current of the unit. As shown, two power supply units 104A1, 104A2 are provided so that when one unit supplies power to a load 6 such as a dwelling, the voltage sources B1-1 to B1-N in the other unit are charged by a generator 3 driven by a windmill 9. The voltage sources may be batteries, solar cells, capacitors, fuel cells or thermoelectric devices. The switches in each stage may be transistors or thyristors and are controlled by respective controllers PUC 1-1  to PUO 1-N  which are in turn controlled by a master controller 2 connected to receive signals from the generator 3, The controllers enable the power supply units to provide a stepped alternating voltage of variable amplitude and frequency and which approximates a sine wave. In a power supply for a single- or three-phase motor of a vehicle, three sets of power supply units 104A1, 104A2 provide variable frequency and variable voltage to the motor, Figs. 8, 9 (not shown). The frequency and voltage variation for changing the speed of the motor is effected by the vehicle accelerator which sends signals to a master controller which in turn supplies control signals to the switches in the power supply units.
Patent GB-835571-A (GB)
Title: Improvements in or relating to lawn mowers
Inventor: DEW ARTHUR
IPC: A01D69/06
Filed: 1956-12-12
Abstract: 835,571. Lawn-mowers. SUFFOLK IRON FOUNDRY (1920) Ltd. Dec. 12, 1957 [Dec. 12, 1956], No. 37981/56. Class 6(2). In a motor driven lawn-mower of the kind in which the prime mover drives both the cutting cylinder and two ground wheels or roller-parts, the ground wheels or roller-parts are driven through differential gearing comprising a planet carrier in operative connection with the prime mover and at least one planet gear rotatable on a stub shaft carried by the planet carrier and meshing with two gears connected respectively to the two ground wheels or roller-parts, means being provided for resisting the rotational movement of the or each planet gear about its axis. According to the preferred embodiment, the mower comprises a vertically adjustable roller 16 for altering the depth of cut of the cutting cylinder 17 which in turn is adjustable towards or away from a ledger blade 27, and two rollerparts 36 mounted on a common shaft 14 for moving the mower forwardly over the ground. The prime mover may comprise either an electric motor or an internal combustion engine and drives the cutting cylinder via a shaft 34, sprocket wheels 32 and 33 and chain 31, the drive to the roller shaft 14 being derived from the sprocket wheel 33 through a further system of chains and sprocket wheels and including a dog clutch 72 operable by means of the lever 75, whereby the drive to the rollerparts may be disconnected whilst maintaining the drive to the cutting cylinders. The adjacent end plates 39 of the two roller-parts 36 are dished inwardly to provide a housing for a planet carrier 51 which is rigidly connected to the shaft 14, holes being bored in the arms 52 of the carrier to receive stub shafts 54 on each of which a planet gear 55 is rotatably mounted to mesh with rings of bevel gear teeth mounted one on each end plate 39. Rotation of the planet-gears about their respective stub shafts is restricted by means of friction pads 58 and 59 urged into engagement with the gears by means of nuts 63 threaded on the stub shafts, so that when one roller-part is out of engagement with the ground, whereas normally that part in contact with the ground will remain stationary and the raised part will spin as a result of the rotation of the planet gears about their respective stub shafts, such rotation of the planet gears being restricted, both roller-parts will still be positively driven.
Patent GB-849265-A (GB)
Title: Improvements relating to self-propelled agricultural machines
IPC: G05G13/00
Filed: 1956-12-14
Abstract: 849,265. Change-speed and brake control. MASCHINENFABRIK FAHR A.G. Dec. 14, 1956 [Dec. 19, 1955], No. 38236/56. Class 80 (2). [Also in Group XXXI] In a self-propelled agricultural machine having an operating lever 1a, Fig. 1, for controlling a variable-speed gear (not shown) in the drive and a member formed as a pedal 12, separate from the lever, for applying a brake (not shown) for the machine, the pedal 12 is arranged within the pivoted range of the lever 1a whereby pivotal movement of the lever 1a in a direction from an idle position different from that to control the gear directly contacts the pedal 12 to apply the brake. As further shown in Fig. 1, the lever 1a pivoted at 2 carries an arm 1b connected by a rod 15 to the gear. Also pivoted at 2 is the pedal 12 connected to a tension-rod 13 for operating the brake. The lever 1a is adapted to engage an abutment 16 on the pedal thereby applying the brake. Concentric with the axis 2 are ratchet sectors 17, 18 in order to lock the lever 1a in any desired position. In another embodiment, Fig. 2, a lever 24 controls a reversible variable-speed gear 20, movement of the lever 24 in a slot 31 of a gate 30 in the direction 24<SP>1</SP> causing the driven shaft 22 of the gear 20 to rotate in the direction 22<SP>1</SP> and movement of the lever in the slot 31 in the direction 24<SP>11</SP> causing the shaft 22 to rotate in the direction 22<SP>11</SP>. Movement of the lever 24 in the direction 24<SP>111</SP> in a slot 32 in the gate causes the brake to be applied, a member 25 on the lever 24 carrying an arm 28 being adapted to abut a brake control-rod 27 and to move it in the direction 29 and the member 25 having a pin connection 26 to the control-rod 23 of the gear 20.
Patent GB-835044-A (GB)
Title: Improvements in or relating to electro-photography and electro-radiography
IPC: C25D13/00
Filed: 1956-12-17
Abstract: A composition comprises a paste of boiled linseed oil, lead chromate and lead naphthenate, milled together and dispersed in an insulating liquid such as n-pentane, carbon tetrachloride or toluene.  Other pigments referred to are phthalocyanine blue, "Monolite" (Registered Trade Mark) yellow or red, cadmium red, zinc oxide or carbon black, and cyclohexane also is referred to as an insulating liquid.
Patent GB-1507397-A (GB)
Title: Treatment of water-soluble metal sulphate residues
IPC: C01B17/50
Filed: 1976-09-16
Abstract: 1507397 Sulphur dioxide from waste sulphates ALLIED CHEMICAL CORP 16 Sept 1976 [20 Nov 1975] 38454/76 Heading C1A Sulphur dioxide is produced from water-soluble metal sulphates obtained from spent sulphuric acid and comprising a heavy metal sulphate (see below), by introducing the sulphate residue into a pool of molten sulphur maintained at at least 250‹C., recovering the SO 2  from the resultant gas stream, and separating the metal sulphate reduction products from the pool as a water-insoluble agglomerated reduction product, e.g. by removing a purge stream, removing solids by filtration or sedimentation, and returning the stream to the pool, or burning it to provide heat to the molten pool. Alternatively the pool may be heated by passing an oxygen-containing gas into it to burn some of the S. The gas stream may be cooled to below 160‹C. but above the melting point of S to condense out S, which is returned to the pool; water remaining in the gas stream may then be condensed out. The SO 2  product may be used to produce H 2 SO 4 . "Heavy metals" are Fe, Sb, Bi, Zn, Cd, Pb, Cr, Mn, Ni, Cu, Ti and V.
Patent GB-871813-A (GB)
Title: Brazing paste and method of brazing using brazing paste
Inventor: WERNZ DONALD EDWARD
IPC: B23K35/36
Filed: 1958-12-01
Abstract: 871,813. Brazing. MARTIN CO. Dec. 1, 1958, No. 38627/58. Class 83 (4). A brazing paste for joining aluminium or aluminium base alloys containing at least 70% aluminium comprises approximately 1 part by weight of a metal fluoride, from approximately 4-12 parts by weight of an aluminium-silicon alloy and water. In an example a paste is prepared using 4-12, preferably 7-8 parts by weight of powdered aluminium-silicon alloy, 1 part by weight powdered aluminium fluoride and 3¢ parts by weight water. The alloy may contain 7-12 parts aluminium and 1 part silicon, e.g. 88% aluminium and 12% silicon. The paste, which is brushed on to the joint, may be used in furnace or flux dip brazing and one of the parts to be joined may be an aluminiummagnesium-copper bearing alloy.
Patent GB-905943-A (GB)
Title: Improvements in or relating to cosmetic containers
IPC: A45D34/06
Filed: 1958-12-01
Abstract: 905,943. Containers; container closures. LECHNER I. M., [trading as LECHNER AMERICAN LABORATORIES I. M.]. Dec. 1, 1958 [Nov. 29, 1957], No. 38704/58. Classes 66 and 125(3). A cap 1 for a cosmetic container 10 is made of two members, one serving as closure for the container and the other, which is of non- circular cross-section for engaging a similarly shaped portion of the first member, being detachable to provide access to a space for housing further cosmetic material. A formation 7 depending from the closure member of the cap holds the stem 8 of a brush; and a housing 4, holding a lipstick, is covered by a hood 6. Ribs 9 enable the cap to be gripped. Metal ball bearings 13 in the container assist in stirring its contents. The container may be of elliptical cross-section, the ratio between the longer and shorter axes of the ellipse ranging between 1 : 3 and 1 : 7. The lipstick may be replaced by an eyebrow pencil or nail pencil.
Patent GB-1359986-A (GB)
Title: Encapsulation of fluids and solids
IPC: C08G59/18
Filed: 1970-08-13
Abstract: 1359986 Encapsulation process MAGNESIUM ELEKTRON Ltd 11 Aug 1971 [13 Aug 1970] 39075/70 Heading B8C Fluids and solids are encapsulated by dissolving a water-insoluble polymerizable monomer (or prepolymer) in a solvent having a higher affinity for water than for the monomer, dispersing the monomer solution in water, dispersing the substance to be encapsulated in the dispersion so formed and mixing into the resultant a solution of a polymerizing agent for the monomer in a solvent having a higher affinity for water than the polymerizing agent and continuing mixing until polymerization is substantially complete. Suitable solvents are acetone, diethylene glycol, dioxan, tetrahydrofuran and C 1-6  aliphatic alcohols. Suitable polymerizing agents are polyamines, polyamides and polyamine/phenol-formaldehyde adducts. Suitable monomers are, in particular, epoxy monomers and pre-polymers. Examples relate to the encapsulation of xylene, a polyester resin and magnesium powder.
Patent GB-1034333-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/16
Filed: 1963-10-04
Abstract: In the manufacture of flat glass, particularly in ribbon form, in which the glass is advanced over a bath of molten metal, a gas which is chemically inert to the molten metal is bubbled through the latter to remove impurities.  A ribbon of glass 22 (Fig. 3, not shown), is advanced over a bath of molten tin 12 contained within a tank 13, 14, 15.  A roof structure bridges the bath and consists of a roof 17, end walls 18, 19, side walls 20, and also an intermediate wall 27 situated near the end of the bath.  A protective gaseous atmosphere is fed into the headspaces above the glass by ducts 20a, 20b, 20c. Inlet passages 32 extend through the floor of the tank in the regions of the delivery and take out of the glass ribbon to and from the tank.  The tank side walls have formed therein a series of pockets 38, (Fig. 4, not shown), each of which provides a gas injection means 39, exhausts 41 being incorporated in equivalent pockets 40 in the superstructure and the depth of metal in the pockets being greater than in the bath. A gas which is chemically inert to the molten metal is bubbled through the latter via passages 32, 39, and is preferably a mixture of four parts nitrogen to one part hydrogen, thus accelerating the vaporization of impurities in the molten metal. The passage of the gas through the molten metal is so chosen that the gas does not come into contact with the glass ribbon.  The composition of the protective gas and of the gas bubbled through the molten metal may be the same as that disclosed in Specification 1,034,332.
Patent GB-1067516-A (GB)
Title: Improvements in belting
Inventor: SEDDON ROBERT MAXWELL
IPC: B29D29/00
Filed: 1964-09-29
Abstract: 1,067,516. Laminates UNITEX Ltd. Sept. 24, 1965 [Sept. 29, 1964], No. 39551/64. Heading B5N. A method for the manufacture of driving or conveyer belts Comprises spraying or coating a synthetic material or a fabric with polyurethane elastomer or cellular polyurethane and winding the material or fabric under tension over a' pair of rollers until a plurality of plies have been wound thereon to form a multi-ply bell. A suitable apparatus is shown.
Patent GB-960918-A (GB)
Title: Improvements relating to the preparation and use of catalysts
IPC: B01J27/13
Filed: 1961-11-06
Abstract: A method of preparing a palladium-refractory oxide-halogen catalyst comprises forming a paladium-refractory oxide composite using an ammoniacal solution of a Pd compound and one or more refractory oxides selected from Group II-V of the Periodic Table and thereafter adding halogen to the composite.  The palladium compound may be PdCl2, the refractory oxide may be alumina and the halogen added may be chlorine.  Preferably the halogen may be added by use of either AlCl3 vapour or of a compound of formula <FORM:0960918/B1-B2/1> where X and Y may be the same or different and are selected from H. Cl, Br. F or SCl, or where X and Y together may be O or S. Specified refractory oxides are Al2O3, B2O3, SiO2, TiO2, BeO, ZrO2, MgO or mixtures.  Halogenating agents mentioned are CCl4, CHCl3, CH2Cl2, CCl2F2, CCl3Br, CCl3SCl.  Examples are given.  Specifications 822,998, 830,882, 953,187 and 953,189 are referred to.
Patent GB-344577-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/66
Filed: 1929-12-31
Abstract: 344,577. Electric lamps with cut-out arrangements. GENERAL ELECTRIC CO., Ltd., Magnet House. Kingsway, London, and PEARCE, A. G., of General Electric Co., Wembley, Middlesex. Dec. 31, 1929, No. 39905. [Class 39 (ii).] Electric incandescent lamps, more particularly of the kind having an inert gas filling, are provided with a fuse which is disposed within the lamp cap and consists of a short length of a fine wire which melts at a temperature above that attained by the cap during the " capping " operation and is attached, after the sealing-in operation, to a relatively thick leading-in wire passing through the pinch. The fuse-wire may be attached to the leading-in wire by flattening the end of the latter and bending it into cylindrical form to receive the end of the fuse-wire, which is either pinched within or spot welded to it; or one end of the fuse-wire may be pressed into a relatively thick copper leading-in wire joined to the wire passing through the pinch, the other end of the fuse-wire being secured to the cap contact. The fuse may consist of a wire of material known under the registered Trade Mark " Euraka."
Patent GB-1202454-A (GB)
Title: Thermoplastic moulding compositions based on oxymethylene polymers and process for their manufacture
IPC: C08L23/02
Filed: 1968-08-22
Abstract: 1,202,454. Oxymethylene polymer-α-olefin copolymer composition. FARBWERKE HOECHST A.G. 22 Aug., 1968 [30 Aug., 1967], No. 40134/68. Headings C3P and C3G. A composition comprises 99À7 to 70% of an oxymethylene polymer and 0À3 to 30% of a copolymer of 50 to 99% of an α-olefin and 50 to 1 % of an alpha-beta-unsaturated acid, at least some of the acid groups having been neutralized with a mono-, di- or tri-valent metal prior to or after polymerization. The copolymer may be a graft polymer of the acid on the preformed polyolefin; the copolymer may also contain acid ester groups. The unsaturated acids may be acrylic, methacrylic, maleic, fumaric and itaconic. The compositions may be obtained by mixing above the melting-point of the oxymethylene polymers. In the examples a formaldehyde homopolymer esterified with acetic acid and a trioxan-ethylene oxide copolymer are mixed with an ethylene-methacrylic acid copolymer and a graft copolymer of acrylic acid on polyethylene neutralized in each case with sodium hydroxide.
Patent GB-1355102-A (GB)
Title: Liquid preparation for dyeing and printing
IPC: D06P3/76
Filed: 1971-08-27
Abstract: 1355102 Dye compositions SANDOZ Ltd 27 Aug 1971 [5 Sept 1970] 40360/71 Heading D1B Compositions used in dyeing fibres specified below comprise a) 40-75% by weight of an alkyl glycol or alkyl polyglycol ether of formula R-(O-C n H 2n ) x -OH in which R is a C 1  to C 6  radical, n is 2 or 3 and x is 1 to 4, b) 10-30% by weight of an alcohol having 1 to 8 carbon atoms, c) 2-15% by weight of a nonionic or cationic dispersing agent and d) 0-20% by weight of water. The compositions are mixed with basic dyes and used in the continuous dyeing and printing of polyacrylonitrile fibres acrylonitrile copolymer fibres and polyamide fibres acid modified or polyester fibres which have been acid modified.
Patent GB-1526923-A (GB)
Title: Photopolymerisable compositions
IPC: C08G59/68
Filed: 1974-09-18
Abstract: 1526923 Photopolymerizable compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 10 Sept 1975 [18 Sept 1974 24 Feb 1975] 40682/74 and 7598/75 Headings C3B C3P and C3R A composition comprises at least one acidpolymerizable or acid-curable material and as photosensitizer at least one salt in which A is S, Se or Te; n= 1 or 2; R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> are independently, optionally substituted hydrocarbon groups or heterocyclic groups or two of the groups R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> together with A form a heterocyclic ring the other R group being optionally substituted hydrocarbon. X<SP>(n-1)</SP> is an anion of an acid capable of curing or polymerizing the acid-curable or -polymerizable material. Examples of I are diphenyl ethyl sulphonium tetrafluoroborate and triphenyl selenium tetrafluoroborate. Examples relate to the curing of epoxy resins, aminoplastalkyd resin mixtures, urea- and melamine-formaldehyde resins and to the polymerization of acrolein tetramer, isobutyl vinyl ether and N-vinyl carbazole. I may be used at 3-5% by wt. of the material.
Patent GB-1474620-A (GB)
Title: Tube closure
IPC: B65D47/20
Filed: 1974-09-18
Abstract: 1474620 Moulding closures on to tubes BLENDAX-WERKE R SCHNEIDER GmbH & CO 18 Sept 1974 40738/74 Heading B5A [Also in Division B8] A tube 1 is provided with a tube closure 6 of elastomeric material having a Shore-A-hardness within the range 40-60 (see Division B8) by mounting a tube body provided with an annular groove 14 on a mandrel and then injection moulding the closure of elastomeric material using a moulding tool which has a cavity corresponding to the external shape of the closure. The front end of the mandrel which forms the inner cavity of the closure, is formed so that the inner contour of the closure is shaped correspondingly. Subsequently the incisions forming the sealing lip 7 are formed by punching. Examples of elastomers are silicone rubber, nitrile rubber, fluororubber, natural rubber, polyesters and ethylene/propylene copolymers.