baber/WOPTO huggingface dataset:
Patent GB-568897-A (GB)
Title: Improvements relating to the free wheels of cycles and the like
IPC: F16D41/24
Filed: 1943-05-26
Abstract: 568,897. Securing freewheels on hubs. FITZPATRICK. H., and FITZPATRICK, A. A. May 26, 1943, No. 8375. [Class 80 (ii)] The inner member D, Fig. 4, of a free-wheel has a cylindrical bore and is slid upon a wheel hub P and held in place by a screwed ring N<1>. Projections R on one of the parts D, P engage recesses in the other part. When the invention is applied to a wheel hub having the usual screw-thread C, Fig. 1, the free-wheel member D is mounted on a ring G screwed on the hub. The projections and recesses are formed on the ring G and in the member D.- The outer member E of the free-wheel may carry a number of different sized sprocket wheels.
Patent GB-146580-A (GB)
Title: Improvements in or relating to pulleys and the like and means for fixing the same on their shafts
IPC: F16H55/46
Filed: 1919-04-03
Abstract: 146,580. Smith & Sons, S., and Ellis, H. April 3, 1919. Pulleys.-A divided pulley or wheel is formed with overlapping wedge or like surfaces A<3>, which when drawn, together axially by bolts B cause the parts A', A<2> to grip on a shaft. The pulley or wheel may be divided at one side only, or the halves may be hinged together at one side.
Patent GB-179883-A (GB)
Title: Improvements in and relating to electric arc welding systems and apparatus therefor
IPC: B23K9/28
Filed: 1921-02-04
Abstract: 179,883. British Thomson - Houston Co., Ltd., (General Electric Co.). Feb. 4, 1921. Uniting by fusion.-Relates to arc welding and consists in a machine in which the electrode is fed by an electric motor and the welding-head is adjustable in two vertical planes at right-angles to one another. The framing 66 carrying the motor 11 can be adjusted in an horizontal plane by worm gear controlled by a hand-wheel 63 and can be adjusted in height by worm gear controlled by a handwheel 61. The welding-head 71 is carried by an arm 70 which can be adjusted in a vertical plane and locked to the framing 66 by bolts 73. The head can be adjusted in a second vertical plane at right-angles to the first named and locked by bolts 76 to a block 75, which can be moved along the arm 70 by a screw and hand-wheel 78. The electrode is fed to the machine from a coil over a curved guide 83, Figs. 1 and 3, and through sets of straightening-rollers, one set being shown at 85. The current is supplied to the electrode by a brush 14, and a hand-wheel 102 is provided for manipulating the feed rollers 9, 10, Fig. 2. The gear between the motor 11 and the feed-rollers 9, 10 is shown in Fig. 2, the head being adjustable about the shafts 95, 99 as described above. The roller 9 is adjustable towards and away from the roller 10 by screws rotated by a hand-pinion 103. Specification 145,330 is referred to.
Patent GB-257305-A (GB)
Title: Improvements relating to current rectifying devices
IPC: H01L21/16
Filed: 1925-03-30
Abstract: 257,305. Westinghouse Brake & Saxby Signal Co., Ltd., (Union Switch & Signal Co.). March 30, 1925. Coating.-In devices utilizing the asymmetric conducting property of a layer of cuprous oxide in contact with metallic copper, the oxide layer is formed in a dense, non-porous, homogeneous condition on the copper by heating the latter after cleaning by sand-blasting or immersion in a caustic solution, to a temperature approaching that at which a glazed surface is produced on the copper, viz., 1040‹ C. in the presence of air or oxygen and then quenching in water or cold air. The process may be repeated, the thin skin of cupric oxide which forms on the surface of the cuprous oxide being removed after each operation, for example, by sand blasting. The heating is preferably effected in an electric furnace, and instead of quenching 'from the temperature of the first heating, the coated copper blank may be allowed to cool slowly in a second furnace to 600‹ C. before being quenched.
Patent GB-450424-A (GB)
Title: Improvements in and relating to alloys for use in sliding bearings
IPC: C22C21/00
Filed: 1935-03-19
Abstract: Sliding bearings are made from hypereutectic aluminium alloys which contain one or more of the metals chromium, manganese, iron, cobalt, and nickel, and have been subjected after casting to a kneading process such as forging or pressing.  Examples contain (a) 6,5 per cent or more of nickel; (b) 2-15 per cent of iron and up to 0,5 per cent of titanium; (c) 6,5 per cent of cobalt and up to 0,5 per cent of titanium; (d) 5 per cent of chromium and up to 0,5 per cent of titanium.
Patent GB-1384244-A (GB)
Title: Cleaning compositions
IPC: C11D3/37
Filed: 1971-04-03
Abstract: 1384244 Abrasive-containing cleaners; aerosols STERLING-WINTHROP GROUP Ltd 26 June 1972 [3 April 1971] 8604/71 Headings C5D and C4X An aqueous cleaning composition comprises (A) 5 to 25% w/w of an abrasive of such fineness that at least 90% will pass a 300 mesh G.B.  sieve; (B) 0À1 to 10% w/w of an anionic and/or nonionic detergent; (C) 0À5 to 10% w/w of a stable foam promoter; (D) 0À01 to 5À0% of a polyelectrolyte flocculating agent. The abrasive (A) may be alumina, silica, pumice, or kieselguhr; (B) is preferably N-lauroyl sarcosinate; (C) is a fatty acid diethanolamide, triethanolamine oleate or a C12-C22 fatty acid ester of 2- amino-2-methyl-1-propanol; (D) is a polymer of acrylic acid, acrylic acid-acrylamide or diethylaminoethyl acrylate, sulphonated polystyrene and others, or an acidic or salified polyphosphate ester based on nonylphenol ethoxylate or a fatty alcohol ethoxylate. Optional ingredients are humectants; corrosion inhibitors such as sodium silicate, sodium benzoate and sodium nitrite; and alkaline substances such as sodium metasilicate and sodium carbonate. The composition is preferably an aerosol containing a propellant such as butane, nitrous oxide or a fluorinated or chlorinated hydrocarbon.
Patent GB-1386442-A (GB)
Title: Gas burners
IPC: F23D14/10
Filed: 1972-02-24
Abstract: 1386442 Gas burners WORTH ENG WORKS Ltd 2 Jan 1973 [24 Feb 1972] 8660/72 Heading F4T A gas burner comprises a tubular casing having a rectangular sectioned bottom part and a triangular sectioned upper part forming a ridged burner plate which is provided with a series of spaced transverse slots 5, 6 forming main flameports, auxiliary flameports 17 being provided to give auxiliary upwardly and inwardly directed flames adapted to suppress divergence of the main flames. Each main flame port comprises a slit 5 in the ridge of the burner plate joined at each end to a wider slot 6. The auxiliary flameports 17 may comprise narrower extensions of slots 5 or apertures adjacent the outer ends thereof. Strips 18 spaced from the burner plate surfaces by scalloped ribs 19 deflect the auxiliary flames. A filter screen 14 is spaced from the inner surfaces of the roof by pressed-in dimples 15. The outlet end of a venturi tube 9 may have a U-shaped or semi-cylindrical restrictor placed adjacent thereto. Access for cleaning the interior of the casing is provided by a removable cover on an end wall 7.
Patent GB-882019-A (GB)
Title: Process for the regeneration of strongly basic anion exchangers
IPC: C13B20/14
Filed: 1958-03-19
Abstract: A strongly basic anion exchanger placed after an ammonium salt-regenerated main cation exchanger in the de-ionisation of e.g., sugar-containing solutions is regenerated by producing an alkali metal carbonate either by the main cation exchanger or by an additional exchanger, rendering the alkali metal carbonate caustic by the action of lime, and using the solution obtained to effect the regeneration.  The production of the alkali metal carbonate from the waste solutions obtained in the de-ionisation is described with reference to Figs. 2 to 5 (not shown).  The strongly basic anion exchanger may also be treated from time to time with a solution of sodium chloride to remove adsorbed colouring matter.ALSO:A strongly basic anion exchanger placed after an ammonium salt-regenerated main cation exchanger in the deionisation of sugar-containing solutions is regenerated by producing an alkali metal carbonate either by the main cation exchanger or by an additional exchanger, rendering the alkali metal carbonate caustic by the action of lime, and using the solution obtained to effect the regeneration.  The production of the alkali metal carbonate from the waste solutions obtained in the deionisation is described with reference to Figs. 2 to 5 (not shown).  The strongly basic anion exchanger may also be treated from time to time with a solution of sodium chloride to remove adsorbed colouring matter.
Patent GB-878244-A (GB)
Title: Process for selective extraction of nitrates from aqueous nitrate-sulfate solutions
IPC: C01B21/48
Filed: 1958-03-19
Abstract: Nitrates are selectively extracted from an aqueous solution containing both sulphates and nitrates (including sulphuric and nitric acids) by contacting said solution with a water-insoluble amine or quaternary ammonium compound having a molecular weight of at least 185, preferably dissolved in a water-immiscible organic solvent.  Thereafter the organic and aqueous phases may be separated and the organic phase stripped of nitrate with a base such as magnesium oxide, ammonia or sodium hydroxide.  Specified amino compounds are those of the formula t-CnnH2n+1NH2 where n = 12-15 or 18-24, dodecenyl t-dodecylamine, dodecylbenzyl t - dodecylamine, tridodecyl - amine, dodecenyl trimethylammonium chloride, dodecylbenzyl di-n-butylamine and poly(metamethylparadodecylbenzyl) dimethyl - g  - (acrylamido) propylammonium chloride.  Suitable organic solvents are kerosene, chloroform, benzene, toluene, xylene, heptane and light or heavy refined mineral oils.  The invention may be applied to solutions obtained in the processing of uranium ores using ion exchange columns or the "resin-in-pulp" methods and to other wastes e.g. from nitration reactions.  Thus uranium may be leached from an ore with sulphuric acid, filtered and adsorbed on an ion exchange resin and eluted with a nitric acid-ammonium nitrate solution: the nitrate ions remaining on the resin may then be eluted with sulphuric acid and the resultant mixed solution contacted with an amine solution according to the invention, nitrate stripped from the organic phase with a base and the solution acidified with nitric or sulphuric acid (where sulphuric acid is used, this will be employed in amount less than would be sufficient to restore the original sulphate/nitrate ratio) for reuse as an eluant in the process.  The sulphuric acid remaining in the aqueous layer may be reused for ore leaching or to elute nitrate from the resin.  Other wastes may be treated according to the invention and the nitrates stripped with ammonia to form an ammonium nitrate solution which after addition of further amounts of ammonia may be recycled as the stripping liquid: a solution of increasing ammonium nitrate concentration is thereby built up.  Specification 654,706 is referred to.
Patent GB-800622-A (GB)
Title: Improvements in or relating to pattern generators
Inventor: SMITH NORMAN JOHNSON
IPC: H03K3/43
Filed: 1955-03-25
Abstract: 800,622. Television. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 1, 1956 [March 25, 1955], No. 8874/55. Class 40 (3). In a flying-spot scanner in which light from the screen 8 of a cathode-ray tube 1 traverses a stencil 7 and impinges on the aperture 5 of a photo-electric cell system 6 by way of an optical system (shown as a spherical mirror 3 and halfsilvered mirror 4), the optical system is arranged to define conjugate foci A and B, the first coinciding with the centre of deflection of the electron beam and the second coinciding with the aperture 5. The arrangement reduces the optical precision with which the parts need to be assembled, particularly the cathode-ray tube screen 8 relative to the centre of deflection of the beam which is determined by the deflection coil system 2. The Specification describes a typical design in detail and discusses the permissible tolerances in the positioning of the parts.
Patent GB-1491593-A (GB)
Title: Hydrogen fluoride-catalysed alkylation of isoparaffins with effluent refrigeration
IPC: C07C2/62
Filed: 1975-03-04
Abstract: 1491593 Alkylating isoparaffins using HF catalyst STRATFORD ENG CORP 4 March 1975 [4 March 1974] 8995/75 Heading C5E An isoparaffin is alkylated with an olefin in the presence of HF catalyst by passing the reaction mixture sequentially through a reaction zone, a settling zone and a cooling zone, withdrawing from the settling zone at least a portion of a hydrocarbon layer formed therein, reducing the pressure on the withdrawn hydrocarbon, thereby to reduce the temperature, controlling the reaction temperature by indirect heat exchange in the cooling zone with the temperature-reduced portion as coolant and recovering alkylate from the coolant. The reaction zone is preferably in a vertical tubular reactor which communicates directly at opposite ends with an overhead settler and a cooler underneath, there being in addition a recycle line from cooler to settler. A portion of the coolant may be used to cool the reactants prior to the reaction. On pressure reduction, the withdrawn hydrocarbon yields a vapour-liquid mixture which is used as coolant and may then be subsequently separated into a liquid and a vapour phase. Each of these may be recycled to the reaction, optionally after removal of isobutane and propane respectively. HF may be recovered from the vapour phase and recycled to the reaction step. The process is particularly applicable to the alkylation of isobutane with C 3 -C 5  olefins.
Patent GB-482923-A (GB)
Title: Improvements in thermocouple ammeters
IPC: G01R19/22
Filed: 1937-03-30
Abstract: 482,923. Current meters; thermoelectric batteries. WESTON ELECTRICAL INSTRUMENT CORPORATION. March 30, 1937, No. 9019. Convention date, Sept. 11, 1936. [Classes 37 and 53] A thermocouple ammeter of the kind described in Specifications 109,046 and 160,763, [both in Class 37], has a heater formed as a thin-walled tube in order to reduce errors due to the rise of resistance at very high frequencies, for example, 100 megacycles. A milli-voltmeter 1 is connected to compensating strips 2 which form the cold terminals of a thermocouple consisting of wires 3, 4 of dissimilar metals, one end of each of these wires being soldered to the centre of its compensating strip. The ends of the strips 2 are thermally connected to but electrically insulated from relatively massive heater terminals 6 by thin sheets of mica 7, the parts'being held together by insulating pieces 8 and screws 9. Lugs or inserted heavy wires 10 extend from the terminals 6 and are bent upwards to support a short heater element. This consists of a tube 11 formed by bending thin metal sheet, and may be about 0À20 to 0À25 inch in length formed from sheet platinum from 0À001 to 0À004 inch thick, the diameter of the tube being about 0À028 inch for a 5- ampere instrument, and correspondingly higher for higher current ranges. The junction of the wires 3, 4 or a short extension 3<1> of one of them beyond the junction, is thermally connected to the centre of the tubular heater 11, as by spot welding. The heater 11 is soldered to the ends of the supporting wires 10.
Patent GB-566123-A (GB)
Title: Improvements in or relating to hydraulic accumulators
IPC: F15B1/18
Filed: 1943-06-04
Abstract: 566,123. Hydraulic accumulators. BENDIX AVIATION CORPORATION. June 4, 1943, No. 9019. Convention date, Oct. 2, 1942. [Class 69 (ii)] In a hydraulic accumulator of the fluidbiassed flexible partition type, the inner end of the liquid opening 22 is covered by a cover plate 24 which is normally held away from the inner surface of the shell 10 by a spring member 50. The partition may comprise a bladder 26 with the lower half thinner than the upper half, and with an internal bead 27, whilst the inner end of the air opening 40 is fitted with a plug 44 of sintered powdered bronze. The member 50 has spring arms 54 which rest in surfaces recesses 58 in the fitting 22, and retaining arms 56 which pass through notches at the recesses 58 and hook under an inwardly projecting flange 60 on the fitting 22. The cover plate 24 has a convex inner surface which closely meets the inner surface of the shell 10 at a flat angle. Specification 560,643 is referred to.
Patent GB-849279-A (GB)
Title: Method of producing amino acids
IPC: C12P13/14
Filed: 1957-03-20
Abstract: Amino-acids are produced by culturing a micro-organism which is capable of producing an a -keto acid from saccharidic materials and possesses a high amino-acid dehydrogenase activity in the reductive animation of the a -keto acid, in a culture medium containing ammonium ions, saccharidic materials, nitrogenous compounds and inorganic substances, but excluding urea, under aerobic conditions, while maintaining the pH at 6-9.  By "high activity" is meant an activity such that at least 21 g of NH3 per ml. are absorbed in a reaction mixture containing 1 ml. of 0,1M glucose, 1 ml. of 0,2M a -ketoglutaric acid, 1 ml. of 0,M (NH4)2 HPO4, 1 ml. of the cell or mycelium suspension (30-50 mg./ml.) and 5 ml. of M/15 phosphate buffer solution (pH8); the mixture is adjusted to pH8 and made up to 10 ml.  Micro-organisms satisfying the above requirements are found among the bacteria (Bacillus, Xanthomonas, Rhizobium, Escherichia, Proteus, Streptomyces, Pseudomonas, Azotobacter, Aerobacter, Salmonella, Lactobacillus), the yeasts (Saccharomyces, Pichia, Schizosaccharomyces, Torulopsis, Rhodotorula, Endomyces, Zygosaccharomyces, Willia, Mycoderma, Monillia), and the fungi (Mucor, Rhizopus, Aspergillus, Neurospora, Penicillium).  Specified micro-organisms include Bacillus subtilis, B. natto, B. megatherium, Pseudomonas aeruginosa, Aerobacter aerogenes, Escherichia coli, Streptomyces tanashiensis, Saccharomyces cerevisiae, Torulopsis utilis, zygosaccharomyces major, Aspergillus oryzae, Mucor javanicus, and Penicillium chrysogenum.  The pH value of the medium may be adjusted and maintained with neutralising agents such as ammonia, ammonium salts, and caustic alkalies.  The amino-acid may be recovered by known processes, e.g. by the use of ion exchange resins. The use of Micrococcus No. 534.  (Specification 839,597) is disclaimed.
Patent GB-375411-A (GB)
Title: A process and apparatus for lowering the consumption of light in colour photography
IPC: G03B33/00
Filed: 1931-03-26
Abstract: 375,411. Colour photography. DICKEN, K., 3, Witzlebenplatz, Charlottenburg, Berlin.-(Assignee of Bertling, H. ; 74, Paulsborner Strasse, Halensee, Berlin.) March 26, 1931, No. 9292. Convention date, June 7, 1930. Drawings to Specification. [Class 98 (ii).] To lower the light consumption for obtaining component colour images (which may be monochrome components or the individual images behind the filter elements of a multi-colour screen) the filters employed are of high transparency and transmit a wider spectrum band than that to be actually used, and the lamps employed are electrical discharge tubes of the gas or metal vapour type, these emitting light in bands or lines lying within the bands transmitted by the filters. The lamps may be employed singly or in combination according to the process used, and may comprise a lithium or a neon lamp, and a mercury vapour lamp.
Patent GB-326668-A (GB)
Title: Improvements in steam power plants
IPC: F01K3/22
Filed: 1929-03-22
Abstract: 326,668. Superheater Co., Ltd., (Superheater Co.). March 22, 1929. Overheating of superheating. tubes, preventing. - In a steam power plant comprising a high pressure boiler 1 supplying a high pressure unit 5, a low pressure boiler 2 supplying a low pressure unit 6 and a steam reheater 13 between the units, when high pressure unit is shut down desuperheated steam from the boiler 1 is passed through the, reheater to prevent overheating. when the steam supply and exhaust outlet valves 9, 14 of the. unit 5 are closed, a valve 19 in the high pressure steam pipe 18 is opened to allow steam to pass through a pressurereducing valve, 20 into a. desuperheater 17, in which the steam flows through U-tubes arrounded by water supplied by a pipe 23 from the boiler drum 24. The desuperheated steam is led off through a pipe 21 opening into the exhaust pipe 15, which is connected to the reheater. Steam generated in the desuperheater is conducted through a pipe 37 into the steam inlet or outlet chamber of the desuperheater. The supply of water is controlled by a valve 32 operated by a thermostat in the steam outlet pipe 21. A float operated valve 35 cuts off the water supply to the desuperheater when the water therein rises to a certain level. The circulation of the water in the desuperheater may be promoted by injector devices operated by steam from the pipe 18.
Patent GB-114245-A (GB)
Title: Improvements in Vehicles Bodies.
IPC: B62D29/02
Filed: 1917-06-28
Abstract: 114,245. Davis, F. G., and Babcock, Co., H. H. June 28, 1917. Bodies; vans and wagons.-The sides 2 of the body of a vehicle such as a motor lorry or van comprise lower side boards 19 which abut against the longitudinal edges of the base or platform 1, upper wings 20, and braces 21 bent laterally at 28 so as to extend across and between the wings and side boards and having their lower portions 25 bolted to the inner faces of the side boards 19 and their upper portions bolted to the outer faces of the wings 20. The upper portions of the braces are turned outwardly and downwardly and secured by bolts 26 to the side boards 19. The platform 1 is supported on longitudinal sills 6, a rabbeted end bar 7 and intermediate cross-bars 8, and the edges of the platform 1 and the ends of the bars 8 are embraced between flanged extensions 27 of the lower portions 25 of the braces 21 and angle-plates 22 at the lower outer edges of the side boards 19. Additional reinforcing- plates 30, 31 are secured to the outer sides of the boards 19, the plates 31 terminating in flanges 32 attached to connecting plates 33, through which, and through the angle-plates 22, bolts 24 pass. A roof 5 supported from the wings 20 by uprights 4 and a rear board 3 hinged about removable pintles 37 and secured by catches 39, 40, are provided.
Patent GB-543544-A (GB)
Title: Improvements relating to stabilisers for motor fuels and to their use
IPC: C10L1/223
Filed: 1940-05-27
Abstract: 543,544. Stabilizing motor fuel oil. KODAK, Ltd. May 27, 1940, No. 9316. Convention date, May 25, 1939. [Class 91] [Also in Group IV] Liquid hydrocarbon motor fuel is stabilized by the addition thereto of an N:N<SP>1</SP>-di- (secondary - alkyl) - p - phenylenediamine. The compounds used as stabilizers are preferably prepared by condensing with the elimination of water a p-dihydric phenol of the benzene series with a secondary alkyl primary amine containing at least four carbon atoms and separating from the product a fraction consisting essentially of N: N <SP>1</SP>-di-(secondary-alkyl)-p-phenylenediamine. The separation is preferably effected by treatment with an alkali followed by extraction with an organic solvent such as a hydrocarbon or an ether, but it may be effected by direct extraction with an ether solvent. Examples are given of the preparation of the compounds using as starting materials hydroquinone and normal secondary butyl primary amine. Specifications 501,844 and 503,401, [Group IV], are referred to.
Patent GB-490504-A (GB)
Title: Improvements in electric lamp holders
IPC: H01R33/46
Filed: 1938-03-26
Abstract: 490,504. Two-part couplings. REVO ELECTRIC CO., Ltd., and REEVES, F. H. March 26, 1938, No. 9339. Addition to 479,669. [Class 38 (i)] A lamp-holder of the type described in the parent Specification has a complete flange a<1> at its rear end and an internal shoulder a3 on which rests a shoulder b<1> on the plug b carrying the contacts. Instead of the lugs provided in the prior case for locating the plug in the sleeve a, projections b<2> on the plug are provided for engagement with extensions of the internal bayonet slots a<4> or with other recesses formed in the sleeve.