baber/WOPTO huggingface dataset:
Patent GB-1361085-A (GB)
Title: Chloroprene polymers
IPC: C09J111/00
Filed: 1971-08-23
Abstract: 1361085 Polymerizing chloroprene E I DU PONT DE NEMOURS & CO 23 Aug 1971 [2 Sept 1970] 39466/71 Heading C3P Chloroprene is polymerized, or co-polymerized with up to 50% of a co-monomer, in an aqueous alkaline emulsion in the presence of watersoluble salts of, (a) 0À5 -1À5% of rosin acid, (b) 1-2% of a C 12 -C 20  unsaturated fatty acid, and (c) 0À5-1À5% of a formaldehyde/naphthalene sulphuric acid condensate; all precentages being wt./wt. based on monomer, the percentages of (a) and (b) being calculated as free acid and that of (c) as salt, the total of (a) + (b) being at least 2% and the monomer conversion being at least 85%. Preferably (d) 1-4 wt. per cent of a methyl ester of a naturally occuring rosin acid is also present to prevent gel formation in the polymer product. In examples, the emulsion also contains dodecyl mercaptan, sodium sulphite and potassium ferricyanide (catalyst), and short-stopping is effected with a mixture of phenothiazine and 2,5 - di - tert - butyl-hydroquinone. The polymer products are useful in non-phasing solvent cements.
Patent GB-395763-A (GB)
IPC: G03B7/00
Abstract: 395,763. Photographic cameras. RISZDORFER, O., 13, Avar Utca, Budapest. Oct. 23, 1931, No. 10362/33. Convention date, Oct. 23, 1930. Divided on 392,902. [Class 98 (i).] An exposure-timing arrangement comprises a photo-electric cell on to which light is allowed to fall through a diaphragm which is progressively opened by clockwork driven at a speed regulated in accordance with the camera diaphragm opening, such clockwork being started by hand simultaneously with the opening of the camera shutter and being stopped when the cell current reaches a predetermined value and thereby closing the camera shutter. As shown, the camera 11, furnished with an objective 12, diaphragm 13, and shutter 14, is provided with a photo-electric cell 15 housed in a separate compartment, upon which light is allowed to impinge through an objective 16 also fitted with a shutter and with a diaphragm 17. Clockwork 22, fitted with a speed regulator controlled directly from the diaphragm 13 through mechanism 28, is geared directly to the diaphragm 17 and is furnished with a winding- button 30, the arrangement being such that the diaphragm is closed when the clockwork is wound up and is opened when it is released. Depression of a spring-returned plunger 23 starts the clockwork, opens the cell and camera shutters through mechanism similar to the mechanism 28, and closes the cell circuit 18 through contacts 32, 33, the plunger being retained in depressed position by a spring bolt 29. The diaphragm 17 is progressively opened and the cell current increases until it is sufficient to energize an electromagnet 24 which retracts the bolt 29 and releases the plunger 23 thereby opening the cell circuit, closing the cell and camera shutters, and stopping the clockwork. The cell circuit is provided with an ammeter 20 and with a regulating resistance 21 which is adjusted in accordance with the plate speed, filters, &c.
Patent GB-1481231-A (GB)
Title: Polyphenylene ether resin/alkenyl aromatic resin blends
IPC: C08L23/16
Filed: 1974-09-11
Abstract: 1481231 Polyphenylene ether compositions; rubber modified polystyrene compositions GENERAL ELECTRIC CO 11 Sept 1974 [1 Oct 1973] 39635/74 Headings C3R and C3P A thermoplastic moulding composition comprises (a) from 20% to 65% by weight of a polyphenylene ether resin and (b) from 35% to 80% by weight of an alkenyl aromatic resin that is modified with a rubbery interpolymer of a mixture of mono-olefins and a polyene. The composition also may include fillers and flame-retardant additives. In examples poly(2,6-dimethyl-1,4-phenylene) ether is blended with polystyrene modified with a terpolymer of ethylene, propylene and 5 - ethylidene - 2 -norbornene; other ingredients are triphenyl phosphate, tridecyl phosphite, polyethylene, titanium dioxide, zinc sulphide, zinc oxide, glass fibres, acicular calcium silicate, potassium titanate, tetramethyl - tetrabromo - dihydroxybiphenyl, a copolymer of bisphenol A and tetrabromobisphenol A, and hexabromobiphenyl.
Patent GB-880295-A (GB)
Title: Improvements in or relating to metal-working rolls
Inventor: WELLS JOHN TREVOR CRAVEN
IPC: B21B27/08
Filed: 1958-12-11
Abstract: 880,295. Hollow rollers. ALLEN & CO. Ltd., EDGAR. Dec. 9, 1959 [Dec. 11, 1958], No. 39930/58. Class 34(1) A roll for the cold-rolling of metals and particularly metal strip comprises a forged roll body 1, Figs. 1 and 2,having longitudinal coolant passages 3, communicating through annular recesses 2, formed by threaded collars 6 screwed on to the ends of the roll, with radial inlet and outlet passages 4, 5 respectively for the coolant. The radial passages communicate with inlet and outlet axial passages 8, 9 respectively, and the passages 3 are preferably slightly skew to the axial direction of the roll. In a modification, the roll is formed with a sleeve 16, Fig. 3, of sintered tungsten carbide.
Patent GB-1475942-A (GB)
Title: Glass fibre reinforced polyamide moulding material of high impact strength
IPC: C08K9/04
Filed: 1974-09-13
Abstract: 1475942 Polyamide moulding composition BASF AG 13 Sept 1974 [14 Sept 1973] 39977/74 Heading C3R A glass-fibre reinforced polyamide moulding material contains (a) 40 to 90 wt. per cent polyamide and (b) 10 to 60% glass fibres coated with a film-forming polymer containing 4 to 50 wt. per cent of units wherein R<SP>1</SP> is H or C 1-5 alkyl and R<SP>2</SP> is a C 2-10  saturated hydrocarbon radial. The coating may also include a conventional silane coupler, e.g. triethoxy-gamma-aminopropyl silane, and lubricant, e.g. oxyalkylated alcohol. The moulding material may contain conventional additives, e.g. a stabilizer, flame retardant, pigment or filler. Various monomers for forming the polyamide and monomers and mono- or di-olefinic comonomers for forming the film-forming polymer are specified. The glass fibre may be of 0À1 to 1 mm. length and 5 to 20 micron diameter and may be continuous filaments comminated during the mixing. They may be coated with 0À1 to 10, preferably 1 wt. per cent of the polymer from an aqueous dispersion which may result from emulsion polymerisation, e.g. using sulphonated oxyethylated isooctyl phenol as emulsifier. In specific examples the polyamide is nylon 6 and the film forming polymer is a copolymer derived from 55 to 85% butyl acrylate, 5 to 25% acrylonitrile, 2% acrylic acid and 10 to 40% butanediol-monoacrylateacetylacetate.
Patent GB-956215-A (GB)
Title: Process for the production of solid copolymers of alkylene oxides with ethylenicallyunsaturated monomers
Inventor: GURGIOLO ARTHUR EMILIO
IPC: C08F2/00
Filed: 1962-10-23
Abstract: Solid copolymers of alkylene oxides with ethylenically unsaturated monomers are prepared by heating a mixture of the monomers in the presence of a ferric oxide-propylene oxide complex.  Specified alkylene oxides are ethylene oxide, propylene oxide, epichlorohydrin, isobutylene oxide, 1-2-butylene oxide, and 2-3-butylene oxide while methyl methacrylate, butadiene, a mixture thereof and vinylidene chloride are specified ethylenically unsaturated monomers.  The process may take place in bulk or in non-aqueous diluent medium, e.g. ethers, benzene or hexane.  U.S.A.  Specification 2,706,181 is referred to.
Patent GB-1159536-A (GB)
Title: Thermoplastics Cable Protecting Sheath
IPC: H01R13/502
Filed: 1967-09-04
Abstract: 1,159,536. Protective sheath. HIRADOTECHNIKAI VALLALAT. 4 Sept., 1967 [3 Sept., 1966], No. 40386/67. Heading H2E. A sheath for protecting a cable where it enters a housing 4 consists of two oppositely wound thermoplastics filament groups 7, 8 arranged in different layers and terminated at either end in rings 5, 6 of the same material. The filaments may be quite independent or they may be joined together at the points of mutual contact, and they may have any crosssectional shape. Reference is made to the application of the sheath to a two-part connector having contacts 2 disposed in an insulating body 1 enclosed by a metal jacket 3 in the housing 4.
Patent GB-1085117-A (GB)
Title: Improved series resonant coupling for alternating current networks
Inventor: THANAWALA HEMESH LAXMIDAS
IPC: H02J3/04
Filed: 1965-09-22
Abstract: 1,085,117. Resonant coupling between A.C. networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 18, 1966 [Sept. 22, 1965], No. 40415/65. Heading H2H. A coupling between two A.C. networks 1, 2 comprises an inductor 3 in series with a capacitor 4, which series combination is arranged to be at or near resonance with the networks operating normally, a circuit comprising a reactor 5 and a capacitor 7 being provided in shunt with the capacitor 4 so as to detune the series combination 3, 4 when an excessive current flows therein, the reactor 5 being arranged to saturate when such an excess current flows in the coupling, the capacitor 7 being provided to ensure resonance in the shunt circuit slightly before the reactor 5 becomes fully saturated. A resistor 6 is used to give a damping effect. In a further embodiment a saturable transformer may be used to connect the capacitor 4 and the shunt circuit to the coupling in which case the capacitor 4 may have a lower voltage ratio. In this embodiment the reactor 3 may be dispensed with and the transformer arranged to saturate at a higher current value than the reactor 5.
Patent GB-1148194-A (GB)
Title: Method and device for striking an electric arc between two electrodes
Inventor: LANGER PHILLIPE
IPC: H03K3/00
Filed: 1966-09-09
Abstract: 1,148,194. Electron beam apparatus; spark gaps. COMMISSARIAT A L'ENERGIE ATOMIQUE. 9 Sept., 1966 [16 Sept., 1965], No. 40433/66. Heading H1D. A vacuum spark gap between electrodes 12, 13, between which is applied a voltage slightly lower than the breakdown valve, is triggered by an electron beam 11 formed between the electrodes. Part of the beam 2 from a laser 1 is reflected by a glass plate 3 through lenses 5, 6 on to a photo-cathode 7 constituting one of the walls of a vacuum enclosure 8. Electrons emitted by the photo-cathode 7 are focused by electrodes 9, 10 to a point between electrodes 12 and 13. Anode 12 is connected through a coaxial line 14, 15 and a resistor 16 to a H.T. generator 17. Cathode 13 is connected to a load circuit 19. Pulses from the circuit 19 may be used to release the shutter of an electronic camera for photographing plasma bursts generated by the impact on a target of the non- reflected portion 20 of the laser beam.
Patent GB-1359422-A (GB)
Title: Fluoran compounds and their use in recording
IPC: B41M5/327
Filed: 1972-08-31
Abstract: 1359422 Diphenylamine derivatives NISSO KAKO CO Ltd 31 Aug 1972 [3 Sept 1971 5 Nov 1971] 40443/72 Heading C2C [Also in Divisions C4 and D2] In Examples 1, 2, and 10, 4-hydroxy-2- methyl-4<SP>1</SP>-alkyldiphenylamines, in which the alkyl group is n-pentyl, n-octyl or n-butyl, are prepared by reacting 4-amino-m-cresol hydrochloride with the appropriate p-alkylaniline in the presence of zinc chloride.
Patent GB-1154793-A (GB)
Title: Improvements in Low Temperature Heat Exchangers
IPC: F25D3/10
Filed: 1966-09-09
Abstract: 1,154,793. Jointing. MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN E.V. 9 Sept., 1966 [14 Sept., 1965], No.40479/66. Heading B3V. [Also in Division F4] An evaporator for low-boiling liquids, e.g. helium, hydrogen or nitrogen (see Division F4) comprises a casing 2 which has been shrunk on to a sintered metal packing 1. The evaporator is made by heating the casing to 150 C., inserting the packing which has been cooled to - 200 C., and allowing the parts to reach room . temperature. The casing may be copper and the packing copper, brass, silver or aluminium.
Patent GB-1119803-A (GB)
Title: Apparatus for beating snow
IPC: E01H4/02
Filed: 1965-09-23
Abstract: 1,119,803. Preparing ski tracks. G. FRESIA. 23 Sept., 1965, No. 40577/65. Heading A6D. [Also in Division B7] A self-propelled device for beating tracks in snow comprises a pair of rollers 2 driven by an engine 31 and a rearwardly extending handle 26, with engine controls 8, 14, by which the device is controlled and steered by a skier 20. The rollers 2 are driven through a reversing gearbox 31 and a differential gearbox 13 and preferably one or a close set pair of stabilising rollers 3 are provided on a forward frame extension 7 which is adjustably mounted by bolts 18 on the frame 30 and the rollers 2 are provided with ballast holders 27. Controls for the engine 31, the gearbox 31 and independent cable-operated hydraulic brakes on the rollers 2 are mounted at the ends of two frame extensions 19 with handles 26. Each roller comprises spokes 1 at an angle to the roller axis, plates 17' or 17" with studs on radial supports 17 and one or two end rings 9, of a greater outside diameter than the body of the roller to prevent sideslip. A seat 24 is provided for towing the skier 20.
Patent GB-1275726-A (GB)
Title: Improvements in nuclear powered ships
Inventor: RIGG SHEPHERD
IPC: B63B43/18
Filed: 1968-08-26
Abstract: 1275726 Housing nuclear power plant UNITED KINGDOM ATOMIC ENERGY AUTHORITY 18 Aug 1969 [26 Aug 1968] 40789/68 Heading B7S [Also in Division G6] A nuclear-powered ship 10 has inner and outer hulls forming collision barriers 19, 20 along the port and starboard sides of the nuclear reactor 21 and a coffer dam 17 extends across the ship forward of the reactor. The collision barriers and coffer dam are of water-tight construction and pipes 30 enable them to be filled with water to provide shielding for the reactor.
Patent GB-1071437-A (GB)
Title: A sealing system for rotary-piston internal combustion engines
IPC: F16J9/00
Filed: 1965-09-28
Abstract: 1,071,437. Rotary-piston I. C. engines. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL. Sept. 28, 1965 [Sept. 29, 1964], No.41169/65. Heading F1F. In a rotary-piston I. C. engine of the trochoidal n and n + 1 lobe type comprising a two-lobed casing (1), Fig. 1 (not shown), containing a threelobed piston 5, sealing of the working spaces (7, 8, 9) between the piston and the casing is effected by providing radially-orientated lateralsealing plates 11 attached to the ends of radialsealing strips 6 lodged in grooves within the lobes or apices of the piston, the radially-innermost end of each of the plates 11 being fixed to a ring 13 that slidingly engages with a groove in an axial-sealing ring 10 seated on a shoulder constituting an extension of the radially-innermost side of an annular groove in the piston containing a resilient ring 12 for pressing the ring 13 against the adjacent end-wall of the casing. The plates 11 are pressed against said wall by leaf springs or coil springs 14. The ring 12 may be made of silicone rubber.
Patent GB-1039801-A (GB)
Title: Improvements in or relating to collecting mechanism
Inventor: BROOKE EDRIC RAYMOND
IPC: F16H35/00
Filed: 1961-11-17
Abstract: 1,039,801. Linkwork. MOLINS ORGANISATION Ltd. Nov. 16, 1962 [Nov. 17, 1961], No. 41247/61. Heading F2K. [Also in Division B8] In a cigarette-collecting mechanism wherein cigarette stacks 1, 2 are pushed into a tray 4 by pusher plates 5, each plate 5 is mounted with respect to a fixed bracket 11 by hinged plates 6a .. 6d, 9a .. 9d which are adapted to be folded and unfolded in order to reciprocate the plate 5 by oscillation of a pivoted lever 14 which is pivotally attached to plates 9c, 9d by rods 12c, 12d. The lever 14 is pivotally mounted on a shaft 21 and is constantly urged in an anti-clockwise direction by a spring 26 located in a telescopic strut 24, 25. A stud 37 on a rotating wheel 35 engages a surface 38 of the lever 14 and thereby, in co-operation with the spring 26, effects oscillation of the lever 41 provided that a solenoid-operated catch 16 is freed. A collar 27 located between telescopic strut parts 24, 25 limits the forward movement of the pusher plate 5. In a modification, shown in Fig. 4, the forward movement is restricted by adjustable links 46, 47 connecting the pusher plate 5 and bracket 11. A three-lobed cam 52 co-operates with a follower 51 on an arm 53 which is pivotally mounted at 54 on a bar 50, attached to the lever 14, and is spring-urged downwardly relative thereto by a spring 55. The end of the arm 53 is engaged by a pivoted catch member 61 which is adapted to be released by operation of a solenoid 70. If the pusher plate 5 is obstructed, a micro-switch 58 is opened due to relative movement between the arm 53 and bar 50, under the influence of a spring 55, and the machine is stopped automatically.
Patent GB-1026461-A (GB)
Title: Improvements in or relating to hydraulic presses
Inventor: ROBBINS LEO
IPC: B30B15/16
Filed: 1962-11-01
Abstract: 1,026,461. Valves. BOBBINS & BENDROR ASSOCIATES Inc. Nov. 1, 1962, No. 41410/62. Heading F2V. [Also in Division B5] When a ram attached to an end wall 44 of a hydraulic press encounters resistance, the pressure in conduits 60, 92 rises causing a pilot rod 88 in a control valve 54 to move leftwards together with plunger 70 and piston 72. When the pilot rod uncovers a passage 84, fluid passes through passage 84 and around piston 72 (Fig. 3, not shown), urging plunger 70 to the left, closing the opening to conduit 56, and allowing the fluid to enter conduit 50 to act on the master piston 42 of the press. On retracting the piston 42, by pressurizing a chamber 110, fluid displaced from chamber 52 acts on the piston 72 moving the valve rightwards to the position shown.
Patent GB-1161540-A (GB)
Title: Improvements relating to Reactive Azo Dyestuffs containing Pyrimidyl 5-Carbonyl-Amino Residues and their use
Inventor: ACKERMANN HANS
IPC: C09B62/245
Filed: 1967-09-14
Abstract: 1,161,540. Reactive azo dyes. J. R. GEIGY A.G. 14 Sept., 1967, No. 41917/67. Addition to 1,051,684. Heading C4P. Monoazo water-soluble reactive dyes of Formula I in which A is a phenyl or naphthyl radical containing at least one water solubilizing group which dissociates acid in water Q is a m or p phenylene group, R is hydrogen or a lower alkyl (C 1-5 ) group and X 1  and X 2  are halogen are prepared by acylating a dye of Formula II with a pyrimidine-5-carboxylic acid halide of Formula III in which hal is halogen. The dyes give yellow shades on cellulosic and polyamide fibres.
Patent GB-868559-A (GB)
Title: Particle spectrometers and spectrographs
IPC: H01J49/32
Filed: 1959-12-10
Abstract: 868,559. Mass spectromsters. LIEBL, H. J. Dec. 10, 1959 [Dec. 10, 1958], No. 42077/59. Class 39(1). Improved transmission combined with greater dispersion and resolution is obtained in energy, momentum or mass spectrometers or spectrographs by providing a substantially anastigmatic system comprising one or more electric and/or one or more magnetic sector fields and so designing the focal lengths and geometrical locations of the analyzing fields in such a way that more intermediate images of axial focusing are formed between the entrance and collector slits than of radial focusing. In the examples given of a single sector field electric energy analyzer, a symmetrical two sector field magnetic momentum analyzer, and a combined electric and magnetic double focusing mass spectrometer, as shown where (a) shows the radial orbits and (b) the axial orbits, a single intermediate axial image is formed, but no radial one.
Patent GB-1481500-A (GB)
Title: Cordierite refractory compositions and method of forming same
IPC: C04B35/195
Filed: 1975-10-15
Abstract: 1481500 Cordierite refractory GENERAL MOTORS CORP 15 Oct 1975 [4 Nov 1974 42210/75 Heading C1J A ceramic refractory fired body having a high thermal shock resistance and a low thermal coefficient of expansion consists substantially of magnesia, alumina and silica in crystalline form with cordierite as the major phase and mullite as the minor phase and the chemical compensation of the body includes a total quantity of Na 2 O and K 2 O not in excess of 0À14% by weight of the body.
Patent GB-1431685-A (GB)
Title: Removing sulphur dioxide from gases containing the same
IPC: B01J27/043
Filed: 1973-09-10
Abstract: 1431685 Sulphur dioxide removal INSTITUT FRANCAIS DU PETROLE 10 Sept 1973 [15 Sept 1972] 42399/73 Heading C1A Sulphur dioxide is removed from a gas containing it by contacting the gas, (a), with an aqueous ammonia and/or ammonium sulphite solution, so as to absorb sulphur dioxide in the form of ammonium sulphite and/or bisulphite, then (b), heating at least a portion of the solution obtained in (a) so as to decompose the sulphite and/or bisulphite to a gas containing sulphur dioxide and ammonia, then, (c), heating the gas from step (b) with a gas capable of reducing sulphur dioxide to hydrogen sulphide, preferably at a temperature of 150-600‹ C., in the presence of a catalyst capable of catalysing the reaction between the reducing agent and sulphur dioxide, so as to produce a gas containing hydrogen sulphide, sulphur dioxide and ammonia, with a molar ratio of H 2 S/SO 2  of from 1À7 to 2À3, then contacting this gas, (d), with a second catalyst capable of catalysing the reaction between H 2 S and SO 2 , to form sulphur and a residual ammonia containing gas, (e) separating the sulphur and the residual gas, suitably (f) by contacting with an organic solvent to remove residual sulphur and sulphur compounds, and (g) using the residual gas, which contains ammonia, to constitute an aqueous ammonia and/or ammonium sulphite solution to be used in step (a). Where the treated gas contains also sulphur trioxide, after decomposition of the sulphites the ammonium sulphates are treated with a reducing agent, suitably in a bath of molten sodium sulphate, so as to convert them to SO 2  and NH 3  which are subsequently subjected to step (c) of the process. The first catalyst may be at least one metal (or oxide or sulphide thereof) selected from Groups VIa and VIII of the Periodic Table; a mixture of cobalt and molybdenum oxides on alumina is preferred. Alternatively, copper, silver, vanadium, manganese, rhenium or zinc (or their oxides or sulphides) may be used. The second catalyst may be alumina or bauxite, and the organic solvent may be polyethylene glycol. As reducing gas, a mixture of carbon monoxide and hydrogen is preferred.
Patent GB-1195424-A (GB)
Title: Electric Switches
IPC: H01H13/18
Filed: 1967-09-19
Abstract: 1,195,424. Mounting operating levers on switches. CROUZET. 19 Sept., 1967 [30 Sept., 1966], No.42583/67. Heading H1N. A U-shaped metal support 14 pivotally mounting a lever 16 controlling a button 12 of a switch has the side arms of the U embracing opposed lateral faces of an insulating cap 13 of the switch housing and located in depressions 130 thereof (see Fig. 3). Projections 142 on the sides locate in depressions 131 in the cap, or lips (145, Fig. 4) and a resilient hook (147) on a tongue of the support 14 locate respectively in grooves (132) in the cap and in an insulating base plate 10 of the housing. A fixing peg 15 passes through holes 141 in support 14 and through the cap. Lever 16 is soldered to an axle 160 pivotally mounted in a selected pair of coaxial holes 144 in the support 14.
Patent GB-1400587-A (GB)
Title: Flow-cell
IPC: G01N23/22
Filed: 1972-09-15
Abstract: 1400587 Flow-cells BRITISH PETROLEUM CO Ltd and APPLIED RESEARCH LABORATORIES Ltd 15 Aug 1973 [15 Sept 1972] 42891/72 Heading G2J A flow-cell for fluorescence work has a back plate 12 that can be replaced to vary the liquid thickness between it and the front plate 16 and inlet and outlet pipes 1, 3 arranged to give an even flow of material through the cell. The film 16 acting as front plate is supported by a metal grid 17.