baber/WOPTO huggingface dataset:
Patent GB-994083-A (GB)
Title: Improvements in fuel cells
Inventor: BONNEMAY MAURICE
IPC: H01M8/22
Filed: 1961-11-17
Abstract: 994,083. Fuel cells. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Nov. 17, 1961 [Nov. 24, 1960], No. 41309/61. Heading H1B. A fuel cell wherein a combustible substance is combined with oxygen in the presence of at least one catalyst is characterized in that hydrazine is included in its electrolyte as a combustible substance. The electrolyte may comprise an aqueous solution of potassium hydroxide, preferably 40% concentration, and 1 to 5%, preferably 2%, of hydrazine. The anode may comprise 80% of finely ground active carbon, 19À5% of silver oxide catalyst and 0À5% of platinum black catalyst, the whole being agglomerated by compression and sintering. The cathode may comprise 48% "Raney" nickel, catalyst (" Raney is a Registered Trade Mark), 48% of nickel in the state of a fine powder conductor and 4% of palladium sponge catalyst, the whole being agglomerated by compression and sintering. Electrodes so constituted act as catalysts and permit combustion of hydrazine at temperatures from 0‹ C. to the boiling-point of the electrolyte, the preferred range being 15-100‹ C. In Fig. 1, the cathode 1 and anode 4 are in the form of circular discs enclosed in a gas-tight insulating casing 7. A perforated silver plate 5 is attached to the anode and is connected to a lead 6. Electrolyte is passed through the space between the two electrodes, and air or oxygen is supplied through tube 11 to the anode, which is sufficiently porous to allow the gas to pass through it to the electrolyte.
Patent GB-1371129-A (GB)
Title: Condensation process
IPC: C07D307/89
Filed: 1972-09-06
Abstract: 1371129 Halide sublimation RHONE. PROGIL 6 Sept 1972 [9 Sept 1971] 41332/72 Vapours of a sublimable substance e.g. ammonium chloride, bromide and iodide and some metal halides, contained in a gaseous mixture introduced into chamber 3 through pipe 1, are condensed in the solid state on rounded particles of inert solid material forming a fluidized bed 5 maintained, by heat exchanger 6, below the condensation temperature of the sublimable substance; and the solid condensate is separated from the coated particles by projecting them, by means of rapid gas flow through tubes 7, against hard metal plates 8 whereby fine particles of solid condensate are detached from the particles by impact and are carried out of chamber 3 through cyclone separator 9 and tube 12. The fine solid condensate is then separated from the gas in separators 13 and 14, and is finally withdrawn from the system through pipes 17 and 18. The gas supplied through tubes 7 may be air, nitrogen or carbon dioxide. The inert solid material may comprise glass, silica, ceramics, metals such as aluminium and stainless steel, and plastics materials such as the polymers of fluorine-containing derivatives of ethylene. The diameter of the inert particles can vary from 60 to 500 microns. The height of the fluidized bed is preferably in the range 20 cm.-1À5 cm. In a modified apparatus (Fig. 2, not shown), the particles coated with solid condensate flow out of the chamber from the top of the fluidized bed, and are subjected to impact outside the chamber.
Patent GB-977691-A (GB)
Title: Magnetic storage elements and methods of making them
Inventor: HERITAGE ROBERT JOHN
IPC: C23C18/50
Filed: 1959-12-07
Abstract: A high speed magnetic storage element in the form of a thin film is made by chemically depositing from alkaline solution a layer of nickel-cobalt-phosphorus alloy on to a substrate in the presence of a magnetic field, the weight ratio of nickel to cobalt in the layer being between 60 : 40 and 40 : 60 and the proportion of phosphorus lying in the range of 5-13% by weight.  Deposition is effected from a hypophosphite-containing solution on to a substrate (flat or cylindrical) of nickel, iron, cobalt, palladium or gold or on to a body having a layer of one of these metals, e.g. a layer of evaporated copper on a resin sheet coated with palladium, palladium-coated glass, copper electroplated with nickel-phosphorus, or nickel or iron evaporated on to glass or resin. A specified solution contains nickel sulphate, cobalt sulphate, ammonium sulphate, sodium citrate, hypophosphorous acid, ammonium hydroxide and, optionally, chlorine or chromium ions derived from sodium chloride, chromium sulphate or chromium chloride.  The layer preferably has a thickness of 500-3000 <\>rA.u.  Discrete elements may be made by masking the substrate during deposition.  The layers may be used in a store in which printed circuit boards in contact therewith provide the switching and access conductors.  According to the Provisional Specification, anisotropic layers may be produced by polishing the substrate in one direction and dispensing with the applied field.
Patent GB-1321186-A (GB)
Title: Process for the preparation of 3-alkoxy-5-methyl-phthalicanhydrids
IPC: C07C63/14
Filed: 1971-09-06
Abstract: 1321186 3 - Alkoxy - 5 - methyl phthalic anhydrides L'OREAL 6 Sept 1971 [7 Sept 1970] 41468/71 Heading C2C 3 - Alkoxy - 5 - methyl - phthalic anhydrides of the formula wherein A is alkyl of 1-4 carbon atoms, are prepared by reacting a monohalogenomaleic anhydride with a 1,1-dialkoxy-3-methyl-butadiene of the formula CH 2  = C(CH 3 )-CH = C(OA) 2  at a temperature from ambient up to the reflux temperature and in the presence of an anhydrous solvent (e.g. anhydrous petroleum ether), the product isolated after allowing the reaction mixture to stand being optionally recrystallized. The reaction is preferably carried out using stoichiometrically equivalent amounts of the reactants. The example describes the preparation of 3-ethoxy-5-methyl-phthalic anhydride.
Patent GB-1128656-A (GB)
Title: Improvements in or relating to semi-trailer vehicles
IPC: B60P1/18
Filed: 1965-09-30
Abstract: 1,128,656. Tipping vehicles. HOYNOR Ltd., and G. HOY. 27 Sept., 1966 [30 Sept., 1965; 19 May, 1966], Nos. 41595/65 and 22394/66. Heading B7B. A tipping semi-trailer has rams 7 connected to the forward end of the body and a pair of strut frames 17, 25 pivoted to the underside of the body, the lower ends of the rams and frames being connected to the upper fifth wheel. The rear wheels may be mounted on a separate subframe pivoted at its rear end to the body and connected by a strut member to the strut frame 25.
Patent GB-1086799-A (GB)
Title: Process for the preparation of 1-(5-nitro-2-furyl)-2-(2-amino-6-pyridyl)-ethylene and of derivatives thereof
IPC: C07D405/12
Filed: 1966-09-21
Abstract: 1 - (5 - Nitro - 2 - furyl) - 2 - (2 - amino - 6-pyridyl)-ethylene, its N-acetyl derivative and 1 - (5 - nitro - 2 - furyl) - 2 - (6 - hydroxy -2-pyridyl)-ethylene are prepared by heating 2-[2-(5 -nitro - 2 - furyl) - vinyl] - pyridine - 6-carboxylic acid azide in a solvent to give 1-(5-nitro -2 - furyl) - 2 - (2 - amino - 6 - pyridyl)-ethylene or, if acetic anhydride or glacial acetic acid or a mixture thereof is used as the solvent, to give the corresponding N-acetyl compound, if desired, saponifying the N-acetyl compound to give the free amine and, if desired, diazotizing the amine and boiling the diazo compound to give 1 - (5 - nitro - 2 - furyl) - 2 - (6 -hydroxy-2-pyridyl)-ethylene.  2 - [2 - (5 - Nitro - 2 - furyl) - vinyl] - pyridine-6-carboxylic acid azide is prepared by reacting 5-nitrofurfural with methyl 2-methyl-pyridine-6-carboxylate to obtain 1-(5-nitro-2-furyl)-2-(6-carbomethoxy -2 - pyridyl) - ethylene, saponifying this compound to obtain the corresponding free carboxylic acid, treating this compound with thionyl chloride to obtain the corresponding acid chloride, and heating this compound with sodium azide.
Patent GB-1433536-A (GB)
IPC: G11B7/13
Filed: 1973-09-07
Abstract: 1433536 Laser scanner record playback apparatus TED BILDPLATTEN AG AEGTELEFUNKEN TELDEC 7 Sept 1973 [8 Sept 1972] 42231/73 Heading G5R Playback of signals on a record carrier is effected by a laser beam scanner, the laser beam oscillation in which is influenced by laser beam radiation reflected or scattered back into the laser by the record carrier, means being provided to detect the resulting variations in intensity of the laser beam oscillations and to convert them into an electrical playback signal. A waveguide structure may comprise a laser diode 1 emitting light from a face a thereof towards the record, and a photodiode 6 sensing the laser beam variations to give a playback signal at output 13. The diode 6 may be located adjacent laser diode 1, or a glass fibre light guide may couple laser diode 1 to a more remote photodiode 6 or other electro-optical transducer. Alternatively, Fig. 2 (not shown), laser diode 1 and detector diode 6 may have respective spaced-apart P-type layers on a common N-type layer. Damping of the light intensity variations in the waveguide structure can be reduced by additional doping of the PN-junction of the laser diode 1 and/or detector diode 6. Diode 6 may be an avalanche diode and the injected direct current for laser diode 1 may be modulated, e.g. at 50 Hz, a control voltage for optional adjustment of the avalanche diode bias and/or of the injected laser diode current being derived by filtering out signals of this modulation frequency from the output of diode 6 and processing the filtered out signals. In alternative forms a laser diode is fed from a constant current or constant voltage source and, respectively, the alternating voltage across, or the alternating current through, the laser diode due to the intensity variations is used to obtain the playback signal, Figs. 3, 4 (not shown). To scan a grooved video disc, the laser diode and detector diode are mounted at the rear side of a diamond skid (16), Fig. 5 (not shown), the laser output being coupled by a glass fibre line (18) to scan the same groove as that in which the skid runs, or preferably a groove following the groove or grooves in which the skid runs. The grooves may have a triangular profile with sides at 135 degrees to one another, and with a groove width of 3À5 Ám,. the groove walls being formed with undulations of about 2 to 4 Ám. wavelength and 0À1 Ám. amplitude.
Patent GB-1028472-A (GB)
Title: Improvements in or relating to starter motor drives
IPC: F02N15/02
Filed: 1962-11-12
Abstract: 1,028,472. Ratchet clutches. FABRICA ESPANOLA MAGNETOS S.A. (FEMSA). Nov. 12, 1962 [June 11, l962]. No. 42691/62. Heading F2C. [Also in Division F1] A starter motor drive comprises an overrun clutch provided with means 13. 14 resiliently urging jamming members 12 into jamming engagement with a radially inner member 3 (see also Division F1).
Patent GB-428239-A (GB)
Abstract: 428,239. Typewriters, &c. UNDERWOOD ELLIOTT FISHER CO., 342, Madison Avenue, New York, U.S.A. Nov. 24, 1933, No. 32931. Convention date, Nov. 28, 1932. [Class 100 (iv)] [See also Group XIX] Type-bar actions; hammer-impression arrangement.-A single-bank key-set and lever-operated machine employing a field of key-set stops for mixed calculations is provided with means under the control of a travelling paper-carriage for adjusting the stopsetting mechanism relatively to the stop field when it is desired to change over from non-decimal to decimal calculations, said means being adopted also to disable the corresponding denominational elements of the printing mechanism. The invention is shown embodied in a machine of the Sundstrand type as described in Specifications 197,354, 223,866, and 313,513, [all in Class 106 (i)]. The numeral keys 49, Fig. 1, co-operate with a set of push pins 50 mounted in a post 57 on a pivoted arm 56 carried on the shaft of a bracket 51 ; the pins are adapted to project the appropriate stop 42 into the path of a pin 46 mounted at the forward end of an arm 45 pivoted on the corresponding type bar 3<1>, the set of pins 46 being guided in a sliding carriage 47, Fig. 5, that is connected to the bracket 51. The arm 56 and bracket 51 swing as a unit when amounts are being set upon the keyboard but occupy different relative positions in decimal and English currency computations. For decimal calculations a key 73, Fig. 2, is depressed and by means similar to that described in Specification 313,513 a slide 62 is withdrawn from contact with a roller 59 on the arm 56 to permit the bracket 51 to move until the roller engages the lug 61 thereon. A latch 76<a> holds the parts in displaced position and during the latter half of the cycle of operation the latch is released and the parts return to normal position. The relative movement of the bracket causes the slide 47 to move so that the pins 46 for the pence, units of shillings, and tens of shillings are out of range of the stops 42. The type bars associated with these denominations are prevented from rising beyond the zero printing position by the usual detent bail 83<a>. To prevent these zeros being printed however, the rearward movement of a plate 300, Figs. 2 and 4, in entering a whole number lowers a latch 306 and permits a link 87 to descend thereby placing a detent 84 into position to block the corresponding hammers. The function of the key 73 is performed by the paper-carriage by the provision of a dog 94, Fig. 3, pivotally mounted on a bracket 92 adjustable on the carriage bar 91 and adapted to co-operate with a roller 98 on the upper end of a lever 99 operatively connected to a lever 104 to control the position of the arm 67 that effects the adjustment of the slide 62. U.S.A. Specification 1,583,102 also is referred to.
Patent GB-1099706-A (GB)
Title: Silver halide emulsions and photographic materials comprising the same
Inventor: WILLEMS JOZEF FRANS
IPC: G03C1/09
Filed: 1965-10-11
Abstract: 1,099,706. Photographic silver halide materials. GEVAERT-AGFA N.V. Oct. 5, 1966 [Oct.11, 1965], No.42974/65. Heading G2C. Photographic light-sensitive silver halide emulsions contain as a sensitizer at least one compound of the formula:- where A is a single bond or a sulphur atom and each of R 1  to R 4  is hydrogen or an alkyl, aralkyl or aryl group each of which may be substituted or R 1  and R 2  and/or R 3  and R 4  together form a heterocyclic ring or rings with the nitrogen atom. The colloid of the emulsion may be inert or active gelatine, the emulsion may be chloride, bromide or iodide or a combined halide emulsion and may be washed or unwashed and the halide grains may have a particle size of less than 0À2 microns. Gold salts such as gold thiocyanate, onium compounds, tin (II) salts, polyoxyalkylene compounds and sulphur sensitizers such as sodium thiosulphate may also be present.
Patent GB-1408873-A (GB)
Title: Process of preparing polyfuran foams
IPC: C08G65/34
Filed: 1971-09-15
Abstract: 1408873 Polyfuran foams made from furfuryl alcohol KONINKLIJKE EMBALLAGE INDUSTRIE VAN LEER NV 13 Sept 1972 [15 Sept 1971] 43033/71 Headings C3C and C3P A polyfuran foam is made by adding at least 4% by wt. (based on the total wt. of furfuryl alcohol, and if present its prehomo- and/or preco-polymer) of a liquid catalyst comprising (a) at least one acid having a pKa in water of 1-4 and/or (b) at least one acid having a pKa in water of less than 1 uniformly distributed throughout an alcohol which does not polymerize under the reaction conditions to a liquid feed material to effect polymerization and foaming thereof, the liquid feed comprising furfuryl alcohol optionally in admixture with a furfuryl alcohol prehomo- and/or preco-polymer and/or one or more copolymerizable materials but does not contain an alcohol (other than furfuryl) or an aromatic hydrocarbon, at least 50% of the hydroxyl groups of any mixture of furfuryl alcohol with the prepolymer being derived from free furfuryl alcohol, and any prepolymer being so selected that the mixture thereof with furfuryl alcohol has a viscosity of not more than 1150 cp. at 25 C. In the examples foams were made by polymerizing a mixture of furfuryl alcohol, its prepolymer, a silicone, paraformaldehyde (as blowing agent or foam stabilizer, flint, a volatile liquid blowing agent, butanediol, o-phosphoric acid, p-toluene sulphonic acid, sulphuric acid, n-butanol, dipropyleneglycol, dodecyl alcohol, polyethylene glycol, methanol, propan-2-ol, boric acid, magnesium sulphate, tetraphosphoric acid, kaolin, iron powder and/or 2-butoxy-ethanol.
Patent GB-1464834-A (GB)
Title: Odourless benzoic acid
IPC: C07C51/42
Filed: 1975-10-21
Abstract: 1464834 Odourless benzoic acid BAYER AG 21 Oct 1975 [21 Dec 1974] 43105/75 Heading C2C A process for the manufacture of practically odourless benzoic. acid comprises treating the benzoic acid after crystallization with an inert gas at an elevated temperature below the melting point of the benzoic acid. Generally the process is carried out in the temperature range of 50 to 100 C.
Patent GB-907426-A (GB)
Title: A process for the production of polymethyl methacrylates and co-polymers thereof
IPC: C08F220/14
Filed: 1960-12-14
Abstract: A process is described for bead polymerizing methyl methacrylate using a peroxide catalyst and a mercaptan mixture as modifier.  The peroxide catalyst used is preferably an aliphatic peroxide such as caproyl or lauryl peroxide.  The modifier is a mixture of (a) one or more primary mercaptans containing 1-6 carbon atoms such as butyl mercaptan and (b) one or more mercaptans containing 7-9 carbon atoms such as n-octyl or 2-ethyl-hexy 1 mercaptan, said mixture containing not less than 25% of (b).  The process can be used for copolymerizing methyl methacrylate with one or more copolymerizable monomers such as methyl or butyl acrylate and butyl methacrylate.  Polymerization can be carried out in suspension using sodium polyacrylate or in bulk at temperatures below 100 DEG C.
Patent GB-1536615-A (GB)
Title: Abrasive material
IPC: C01F7/02
Filed: 1977-10-17
Abstract: 1536615 Alumina abrasive material TREIBACHER CHEMISCHE WERKE AG 17 Oct 1977 [25 Oct 1976] 43132/77 Headings C1A and C1J [Also in Division C7] A process for preparing an abrasive material from a spent metallic catalyst on an alumina carrier comprises heating the supported spent catalyst with at least one reducing agent to obtain a melt having an alumina component on an alloy residue and cooling the melt to form a solidified alumina component constituting the abrasive material, the alumina component and the alloy residue being separated from one another mechanically. The alumina component of the melt may contain at least one additive selected from zirconia (e.g. 5-60 wt. per cent), titania, chromic oxide, lime magnesia, silica, zinc oxide and rare earth oxides. The reducing agent may be coke.
Patent GB-1058739-A (GB)
Title: Manufacture of benzdiaz[1,4]epine derivatives
IPC: C07D243/20
Filed: 1964-10-22
Abstract: Compounds of the general formula <FORM:1058739/C2/1> (wherein R1 and R2 each represent a halogen atom or a C1- 7 alkyl or trifluoromethyl group, the lower alkyl group contains 1-7 carbon atoms and the broken lines denote optional substituents) are prepared by reacting a compound of the formula <FORM:1058739/C2/2> with a metal C1- 7 alkoxide, and are optionally converted into (a) a compound of the general formula <FORM:1058739/C2/3> (wherein R3 and R4 each represent a C1- 7 alkyl group) by reaction with ammonia or the appropriate amine, or (b) a compound of the general formula <FORM:1058739/C2/4> by hydrolysis.
Patent GB-1034796-A (GB)
Title: Improved article of wearing apparel
Inventor: BIBBY NOEL
IPC: A41D3/00
Filed: 1962-11-16
Abstract: 1,034,796. Jackets. NOEL BIBBY Ltd. Nov. 8, 1963 [Nov. 16, 1962], No. 43361/62. Heading A3V. A garment such as a ski-jacket having a draw cord 6 housed in a hem 11 at its waist or lower edge has has means to allow the free ends of the cord to be retracted into the hem when they are not tied together. In one embodiment, a loop of cord is drawn out of a gap12 in the hem and anchored to e.g. a hook 9 on the inside of the garment. In another embodiment an intermediate part of the cord is formed of extensible material.
Patent GB-1068546-A (GB)
Title: Therapeutic restorative composition
IPC: A61K31/26
Filed: 1964-10-26
Abstract: A tonic comprises FeSO4, dried yeast, caffeine and nicotinic acid. Manganese sulphate and magnesium glycerophosphate may also be present.
Patent GB-1015448-A (GB)
Title: An apparatus including a variable pressure mattress
IPC: A61G7/057
Filed: 1964-10-26
Abstract: 1,015,448. Liquid filled mattresses. O. H. DRAGER, [trading at DRAGERWERK, HEINR & BERNH DRAGER]. Oct. 26, 1964 [Oct. 24, 1963], No. 43637/64. Heading A4M. A liquid filled mattress comprises two separate, interdigitated ducts 2a, 2b, 2c &c. and 3a, 3b, 3c &c. through which liquid is circulated by pumps 10, 12 at a temperature controlled by a heat exchanger 14, 21, the ducts 2a &c. and 3a &c. being alternately filled and emptied by being of a reversible air pump 22. The air pump 22 applies positive and negative pressures to water in chambers 11, 13 respectively whereby the duct systems 2a &c. and 3a &c. are respectively filled and emptied, the pump 22 being periodically reversed to reverse the process. The water is circulated respectively by the pumps 10, 12 out through conduits 4, 6 and back through conduits 8, 9 and 5, 7.
Patent GB-1510418-A (GB)
Title: Fluid control valve
IPC: F16K11/07
Filed: 1976-10-25
Abstract: 1510418 Valves CATERPILLAR TRACTOR CO 25 Oct 1976 [8 March 1976] 44229/76 Heading F2V A valve comprises a reciprocable spool 11 lands 15, 16 defining an annular groove 23, and a metering slot 66 including a cylindrical pocket 69 recessed into the land 16 with its axis at an acute angle to the axis of the spool, and a longitudinally extending groove 72 including an arcuate portion 74 leading from the peripheral surface of the land 15 and a portion 76 tangential to the arcuate portion, parallel to the spool axis and leading to the pocket 69. The cylindrical pocket 69 is produced by an end mill cutter and the groove 66 by advancing a Woodruff key cutter toward the axis of the spool and traversing it at constant radial depth. There are further grooves 77 with arcuate bottom surfaces connecting the peripheral surface of the land 15 with the annular groove 23. The spool is actuated by a pilot valve (56), Fig. 1 (not shown) supplying fluid to chambers (54), (60) at opposite ends of the spool, and when not actuated the spool is centred by a resilient mechanism (51) in a position (Fig. 4) in which the end faces 67, 68 of the lands 15, 16 are located in chambers 29, 30 formed in the bore in which the spool moves and is separated by an annular seat land 34. When the spool is shifted to the left (Fig. 2), fluid is metered out from the groove 23 to the chamber 30, and when it is shifted to the right (Fig. 3, not shown), fluid is metered into the groove 23 from the chamber 29; it is stated that the shape of the metering slot 66 is such that the reaction on the spool due to momentum of metered fluid is equal in magnitude whichever way the spool is shifted and is in a direction tending to assist the movement of the spool.
Patent GB-1518179-A (GB)
Title: Flocculating compositions
IPC: C02F1/52
Filed: 1975-10-28
Abstract: 1518179 Flocculating composition CAFFARO SpA 28 Oct 1975 [12 Nov 1974] 44277/75 Heading C1C A method of preparing a composition for the flocculation and clarification of waters comprises the steps of: (a) slurrying a raw clay containing Al, Fe and Mg so as to obtain a semi-fluid slurry having a solids content of 33-55% by weight, the particles of clay being not greater than 1 mm diameter, (b) treating the stirred slurry with an acid, while increasing the temperature to 90C, capable of forming water-soluble salts of Al, Fe and Mg, (c) completing the attack of the acid on the clay by heating at 150C and 4 atmospheres, and (d) gradually cooling the mixture and filtering it to obtain a solid residue and a liquid phase, the latter constituting the desired composition. The salts of Al, Fe and Mg may be sulphates or chlorides, and the s.g. of the aqueous composition may be 1À18-1À19 at 20C. A bentonite clay is suitable, and 98% sulphuric acid may be used.