baber/WOPTO huggingface dataset:
Patent GB-1032207-A (GB)
Title: Locking screw-threaded members
Inventor: FOX ROBERT GEORGE
IPC: B23G9/00
Filed: 1964-02-28
Abstract: 1,032,207. Producing locking nuts. NUTS & BOLTS (DARLASTON) Ltd. Feb. 22, 1965 [Feb. 28, 1964], No. 42977/63. Heading B3A. [Also in Division F2] An insert 16 is positioned within a groove 11 in the threaded bore 13 of a self-locking nut, for example, by means of opposed cylindrical dies 13 and 14 which are forced together. The insert 16, suitably of nylon which can be heated if desired, is forced into the annular groove and retained there. The nut is subsequently mounted on a spring support 21 (Fig. 3, not shown), a circular die 23 forcing the nut downwardly over a cutting die 17 to remove the centre section of the insert. In place of a single groove, a number of discontinuous grooves may be provided, and the threads in the nut on opposite sides of the groove or grooves may be slightly misaligned.
Patent GB-1524979-A (GB)
Title: Blowing agents based on urea dicarboxylic acid anhydride
IPC: C08J9/06
Filed: 1975-10-22
Abstract: 1524979 Blowing agents for thermoplastic polymers BAYER AG 22 Oct 1975 [7 Nov 1974] 43312/75 Heading C3C Blowing agents comprise urea dicarboxylic acid anhydride of formula optionally in combination with a compound which yields water at 150-350 C. and/or at least one other blowing agent and are used to foam thermoplastic polymers by heating to 150-350 C. In the examples mixtures of (1) polystyrene and butyl stearate, (2) acrylonitrile - butadiene - styrene copolymer, butyl stearate and MgSO4 À 7H2O and (3) polyamide and zinc oxide, were foamed by heating with the above anhydride in a screw injection moulding machine.
Patent GB-1106755-A (GB)
Title: Combustion equipment
Inventor: JUBB ALBERT
IPC: F02C3/36
Filed: 1965-10-14
Abstract: 1,106,755. Gas turbine plant. ROLLSROYCE Ltd. Oct. 6, 1966 [Oct. 14, 1965], No. 43676/65. Heading F1G. [Also in Division F4] Combustion equipment comprises fractionating means for fractionating a fuel into at least two fractions one of which is of lower molecular weight than the other, there being means for passing the said two fractions to two different combustion chambers, and means for obtaining useful work from the combustion gases produced in the two combustion chambers. The plant shown in Fig. 1 is a gas turbine plant which comprises an air compressor 12, an air pre-heater 13, combustion equipment 14, a first turbine 16 which is connected to drive the compressor through shaft 17, and a second, separate power turbine 22 which is connected to drive a useful load 23 through shaft 24. The exhaust gases from the turbine 22 discharge through duct 21, a portion of the gases being tapped off through duct 26 and passed to a second combustion chamber 25 the combustion gases in which are utilized to heat the air pre-heater 13, the gases being then discharged through duct 31. A fuel fractionating means 33 is provided to which a heavy or residual oil is supplied through a first pre-heater 35 disposed in the exhaust gas duct 21 and then through a second pre-heater 36 heated by means not shown, the oil being raised to a temperature of 500‹C. The lower weight fraction boiled off passes to burners 15 in the combustion equipment 14 while the higher weight fraction passes to a burner 27 of the combustion chamber 25. The combustion equipment 14 may thus be operated at a temperature of 900‹C. which would not be possible if the heavy oil were burned directly in the equipment 14. In a second embodiment, Fig. 2, the invention is applied to combustion equipment of a steam generator and which comprises a first combustion chamber 43 to which air under pressure is supplied from a compressor 46, the air being preheated. The combustion gases from the first chamber 43 pass through duct 47 to a second combustion chamber 44 from which the gases discharge to atmosphere through duct 51. A steam generating section 63 is disposed in the chamber 44 and a steam super-heating section 64, also a steam reheat section 66 are disposed in the chamber 43. A fractionating chamber 52 is provided and heavy oil is supplied thereto through a heater 54 disposed in the combustion gas duct 47, the oil being heated to about 500‹C. The lower weight fraction boiled off passes to the burner 46 in the first chamber 43, and the heavier fraction passes to the burner 50 in the second chamber 44.
Patent GB-989392-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: MANN CHARLES ALAN
IPC: G21C17/04
Filed: 1962-11-20
Abstract: 989,392. Fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 7, 1963 [Nov. 20, 1962], No. 43817/62. Heading G6C. A nuclear fuel element constructed to enable leak tests to be conducted on it comprises nuclear fuel enclosed in a sheath closed by one or more closure members and one or more free spaces at selected positions, said space or spaces being filled with a gas containing a radio-active tracer gas. A fuel rod 1 enclosed in a magnesium sheath 2 has abutting its end a porous insulating disc 5. The can is closed by a screwed-in end plug 3 seal welded at 4. The porous sintered alumina disc contains helium having 0.06% krypton 85 mixed with it. In two further embodiments, the porous insulator may be replaced by a non porous disc having a recessed face to act as a gas pocket (Fig. 2, not shown), or by a perforated disc (Fig. 3, 4, not shown). Testing procedure. The advantage of the invention over previous methods of leak detection is that whereas previously a fuel element which had been stored prior to installation might pass a final leak test because the gas in it had already leaked away, the present invention provides a method of testing which measures the amount of trapped gas which has been retained in the fuel element since manufacture. Two radio-activity signals are measured, one at a position adjacent the end cap, and a second at a point midway along the fuel element. The two readings are subtracted one from the other to cancel the radio-activity signal emmanating from the fuel, and the result is compared with values obtained from other fuel elements stored for a similar time, and with a theoretical optimum value for a leak-free fuel element which is based on the amount of krypton as contained in the fuel element and which takes account of the decay which will have taken place. Specification 897,232 is referred to.
Patent GB-1003709-A (GB)
Title: Copying material and a process for the preparation thereof
IPC: B41M5/10
Filed: 1962-11-20
Abstract: Compositions used in making copying sheets (see Division D2) comprise a polycondensation product of oligomeric polymerized unsaturated long-chain carboxylic acids with di-, tri- or polyamines. The polymers may also include other acids, e.g. sebacic acid, and reactable amino groups.  In the Examples, the compositions comprise: (Example I) montanic acid ester, polyamide, water and silica; (Example II) polyamide, water and silica; (Example III) dispersible polyethylene, polyamide, water and silica; and (Example IV) montanic acid ester, polyamide, water and ethyl alcohol.ALSO:Copying material in the form of sheets, sets of sheets or sets of forms, of the kind which can be written upon on one side, have on the other side a pressure-transferable copy-forming layer, so that the writing is transferred by the pressure of the writing instrument from the back of the sheet to another sheet underneath the first sheet, the transferred layer of ink sticking to the bottom sheet, has an ink layer that is free of wax and oil and is not in itself transferable and an overlay which is transferred together with an ink layer when pressed and comprises one or more synthetic resins that are polycondensation products of oligomeric unsaturated long-chain carboxylic acids with di-, tri- or poly-amines.  They may also include fatty acids of low molecular weight, e.g. sebasic acid, and reactable amino groups.  The overcoating may also include polyethylene, montanic acids or esters or synthetic or natural waxes, and may be applied in aqueous dispersion.  The base sheets may be of paper, fabric, fleece or a structureless foil of organic, inorganic, natural or synthetic origin, and may have the coatings on the whole or part of one or both sides.  Binders for the ink layer referred to in the examples are polyvinyl alcohol (Examples 1, 11 and IV) and polyvinyl acetate (Example III).
Patent GB-1195400-A (GB)
Title: Improvements in Fuel Control Systems for Gas Turbine Engines
IPC: F02C7/14
Filed: 1967-09-27
Abstract: 1,195,400. Gas turbine engine fuel systems. GENERAL ELECTRIC CO. Sept. 27, 1967 [Dec. 29, 1966], No.43949/67. Heading F1G. In a gas turbine engine fuel system comprising a fuel pump having an output increasing with increasing engine speed and delivering via a flow-scheduling assembly to a fuel injection nozzle having a back pressure which increases with an increasing rate of flow through the nozzle, and throttle means for by-passing that portion of the pump output not required by the nozzle to a low-pressure point, there is provided means for selectively providing a relatively low resistance flow path from the pump to the fuel tank when the engine speed is high and the flow rate through the nozzle is relatively low whereby a significant portion of the heat input to the unrequired portion of the pump output is then carried by fuel returning to the fuel tank and is dissipated in the fuel in the tank. The fuel system shown comprises a engine-driven fuel pump 26 delivering fuel from a wing tank 22 via a metering valve 30 and a valve assembly 52 to fuel nozzles 16. The metering valve 30 is controlled primarily by a manual control 50 and also by selected engine variables fed to a computer 48, the pressure across the metering valve being kept constant by means of a by-pass valve 40 which by-passes fuel back to the pump inlet. During normal operation, fuel entering the valve assembly 52 is directed by a spool valve 74 through a heat exchanger 84 for cooling another fluid such as lubricant before passing via a pressurizing valve 60 to the fuel nozzles 16. A relief valve 58 limits the flow through the heat exchanger 84 to a predetermined maximum. When the aircraft is descending with a minimum engine thrust output after high speed flight, the engine 10 is windmilling at a maximum rotational speed while the fuel consumption is relatively low. Since the output of the engine-driven pump 26 is then high, the substantial amount of fuel needing to be by-passed tends to introduce considerable heating of the fuel. To avoid this, the spool valve 74 can be moved to the right by means of a manual control 112 to terminate the normal flow through the heat exchanger 84 and to allow fuel to flow via a line 104 through the heat exchanger and then return via a line 110 to the tank 22, where it is cooled by the fuel already in the tank. A restrictor 116 may be provided in the line 110 to prevent undue restriction of the pump outlet pressure.
Patent GB-1410857-A (GB)
Title: Thermoplastic resin composition
IPC: C08K3/30
Filed: 1973-09-20
Abstract: 1410857 Polymer compositions LION FAT & OIL CO Ltd 20 Sept 1973 [20 Sept 1972] 44149/72 Heading C3P Thermoplastic resin compositions comprise (1) 8 to 40 weight per cent of polyethylene of melt index 0.1 to 10, (2) 10 to 30 weight per cent of an ethylene/vinyl acetate copolymer of melt index 2 to 20, (3) 0.05 to 2 weight per cent of a metal salt of a copolymer of ethylene with an ethylenically unsaturated carboxylic acid of melt index 0.5 to 40 and (4) 40 to 70 parts by weight of calcium sulphite and/or calcium carbonate having a mean particle diameter in the range 0.5 to 70 microns. The salt may be a zinc, magnesium, calcium, sodium or potassium salt, and the copolymer may be derived from methacrylic, acrylic, crotonic, maleic or fumaric acid. The compositions may also contain stabilizers and lubricants and may be made into articles by blow, injection or extrusion moulding. Examples describe the moulding of bottles and cylindrical cups from compositions comprising polyethylene and ethylene/vinyl acetate copolymer together with (1, 2 and 4) zinc salt of ethylene/methacrylic acid copolymer and calcium sulphite and (3) sodium salt of ethylene/ methacrylic acid copolymer, calcium sulphite and calcium carbonate.
Patent GB-1429729-A (GB)
Title: Method of producing glass by flame hydrolysis
IPC: C03B37/014
Filed: 1974-10-14
Abstract: 1429729 Producing oxide-modified glass CORNING GLASS WORKS 14 Oct 1974 [19 Dot 1973] 44371/74 Heading C1M A glass body comprising an oxide additive is produced by forming a preform on a support by depositing at least one glass-forming oxide on the support by flame hydrolysis, the preform having a network of continuous open pores throughout its mass and being sufficiently cohesive to resist disintegration during treatment, contacting at least a portion of the pores of the preform with a material comprising the oxide additive, or a compound convertible thereto, and which material is substantially inert to the preform, the material being in the liquid phase, and subsequently heat-treating the preform to consolidate the treated preform into a non-porous glassy body having the oxide additive dispersed throughout at least part thereof. The preform may be a mixed oxide material, but is preferably SiO 2  produced by deposition on a mandrel (e.g. of fused quartz) from a SiCl 4 /O 2  mixture. The additive may be a metal salt (e.g. a chloride), in aqueous or organic solution (e.g. methanol), in suspension, or as a molten material. The preform is preferably immersed in a bath of the liquid, and subsequently dried (e.g. by blowing air). The preform may have a porosity of 60-90% (as measured by mercury porosimetry) with an average pore diameter of 0À001-10Á. The pore size may vary across the preform. The consolidation may be by induction heating to, e.g. 1450‹ C., in a He atmosphere. In examples, the preform is treated by solutions in methanol of CoCl 2 , NiCl 2 , MnCl 2 , LaCl 3 , SnCl 3 , TbCl 3  or NdCl 3 , or an aqueous suspension of ZrO 2 .
Patent GB-940157-A (GB)
Title: Method of and apparatus for forming a continuous tobacco rod
IPC: A24C5/18
Filed: 1959-12-31
Abstract: 940,157. Cigarette-making machines. K. KÍRBER. Dec. 31, 1959 [April 18, 1959], No. 44385/59. Heading A2C. The depth of tobacco 5 removed by a trimming cutter 8 from a tobacco stream 1 formed by a distributer 9 is maintained constant for different depths He, He<SP>1</SP> of the stream 1 by conjoint control of the height of the cutter 8 and the feed rate of the distributer 9, e.g. manual or automatic adjustment of the cutter height acts, mechanically or via an electrical balanced potentiometric bridge servomotor F, on the motor V of the distributer drive A, or both the motor V and cutter height may be actuated via the servomotor F from a separate control member. As described, the stream 1 is trimmed whilst passing upwards on the periphery of a feed wheel which reverses its direction and which it leaves at the top of the wheel to enter cigarette rod forming means, the trimmedoff tobacco continuing round the wheel to re-join the stream at the bottom of the wheel. Specifications 662,949, 940,156 and German Specification 497,464 are referred to.
Patent GB-1377109-A (GB)
Title: Trim strips
IPC: B29C69/00
Filed: 1972-09-26
Abstract: 1377109 Trim strips STANDARD PRODUCTS CO 26 Sept 1972 [29 Dec 1971] 44454/72 Heading B6G An end finish for a trim strip of plastics material is produced by removing a portion of the trim strip material such that the remaining portions of the strip material define a recess having at least two edges, and extending through the entire thickness of the trim strip, displacing the remaining portions relative to one another to bring the two edges of the recess into juxtaposed relationship, and interconnecting the remaining portions to retain the two edges in juxtaposed relationship. The interconnection of the remaining portions of the trim strips may be achieved by bonding or by the use of fasteners and preferably by heatsealing the juxtaposed edges together. Preferably the strip material is heated prior to displacement of the trim strip portions to facilitate such displacement or to facilitate both the displacement and heat-sealing of the juxtaposed edges. Heating can be achieved by a heating block having a contour corresponding to that of the recess. Displacement of the trim strip portions to bring the recess edges into juxtaposition can be achieved by using an appropriately contoured forming block. The trim strip may be made of polyvinyl chloride. As shown in Fig. 2 and 3 a portion of a trim strip material is removed whereby remaining side portion 30 and remaining intermediate portion 32 define a recess 34 and remaining side portion 36 and remaining intermediate portion 32 define another recess 38. Recess 34 has two edges 30a and 32a and recess 38 has two edges 36a and 32b. Portions 30 and 36 are cut to a longitudinal length which provides for each to be displaced laterally inwardly relative to the intermediate portion 32 and to terminate in an abutting engagement. Terminal ends 30b and 36b of side portions 30 and 36 are tapered to provide for the terminal ends to be disposed in abutting relationship. The interconnection of the side portions 30 and 36 with intermediate portion 32 is achieved by heatsealing. Heating can be achieved by conductive, radiant, hot gas, or induction heating. Preferably conductive heating is employed by using a heating block 40 provided with electric heating electrodes in recesses 42 thereof. Lateral displacement of the side portions 30 and 32 is preferably achieved after the trimstrip has been heated by a pair of laterally reciprocable die elements 46, 48. Other end contours of the trimsttip are described and illustrated.
Patent GB-1028163-A (GB)
Title: Process for separating solid hydrate from saline water
IPC: C02F1/26
Filed: 1963-02-08
Abstract: Hydrates formed from saline waters are washed with an immiscible liquid, the density of which is either greater or smaller than that of the saline liquid depending on the density of the hydrate being greater or smaller respectively.
Patent GB-1222037-A (GB)
Title: Catalytic hydrogenation of di(4-aminophenyl)methane
IPC: F16D43/22
Filed: 1969-09-10
Abstract: 1,222,037. Di - (4 - aminocyclohexyl)methane. UPJOHN CO. 10 Sept., 1969 [25 Sept., 1968], 44639/69. Heading C2C. Di - (4 - aminocyclohexyl)methane is obtained by the hydrogenation of di - (4 - aminophenyl)methane in the presence of a supported rhodium catalyst, preferably rhodium on alumina; the reaction is carried out at 25-200 C. and a pressure of 3-100 atmospheres of hydrogen. The catalyst may be regenerated by treatment with water, aqueous ammonia or acetic acid at 60-80 C. and then dried.
Patent GB-1459127-A (GB)
Title: Arrangement for afterburning of exhaust gases
IPC: F01N3/34
Filed: 1974-10-17
Abstract: 1459127 After burners J EBERSPACHER 17 Oct 1974 [17 Oct 1973] 45098/74 Heading F4B [Also in Division B1] An afterburner for an engine exhaust comprises an elongate cylindrical reactor 1, the reaction space 2 of which is divided into two by a longitudinal apertured partition 4, the exhaust gases being introduced, together with additional combustion air, into the upper part and the afterburned gases being removed from the lower part. The conduit 6 for the exhaust gases is kept as short as possible and is bolted to the exhaust manifold by flange 5. Combustion air is fed from duct 17 through conduit 18 to a point near the exhaust valve. The reactor is made of two cup-shaped end pieces 7, 8-and a cylindrical piece 13, the joints allowing some movement for expansion. The partition 4 is also of jointed construction, and may be provided with a catalytic layer, e.g. of nickel, copper or an alloy of these. Alternatively it may be made of these metals. The reactor is insulated by a layer 14 inside a metal casing 15.
Patent GB-1061907-A (GB)
Title: Improvements relating to vestigial sideband transmitters
Inventor: LOMAR GEOFFREY JOHN
IPC: H03C1/60
Filed: 1962-11-30
Abstract: 1,061,907. Vestigial sideband systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 18, 1963 [Nov. 30, 1962]. No. 45341/62. Heading H3R. In a vestigial sideband amplitude modulation system, an upper frequency band of the modulating signal is delayed by a network, then after modulating the signal on a carrier in a double sideband modulator a further delay is produced by an asymmetric filter on those frequency components of the desired single sideband output which correspond to the lower modulation frequency band so that when the modulated signal is then passed to a vestigial sideband filter, which produces a delay mainly of the vestigial sideband, the over-all virtual delay of the single sideband and vestigial sideband is the same. The modulation may be a television video, e.g. colour, signal and its upper frequency band delayed by three networks in cascade, respectively delaying adjacent partly overlapping frequency ranges, producing an equal over-all delay. The vestigial sideband carrier produced may then be transposed to a higher frequency before transmission.
Patent GB-1480686-A (GB)
Title: Component fitted with ornamental stones and process and apparatus for the production thereof
IPC: A44C27/00
Filed: 1975-10-31
Abstract: 1480686 Mounting ornamental stones D SWAROVSKI & CO 31 Oct 1975 [4 Nov 1974] 45409/75 Heading A3H An arrangement of ornamental stones have their setting surfaces adhered to a coherent fusible adhesive film 5 and the resulting component is fixed in a cast jewel setting 17 by fusion of the adhesive film. Cut-outs in the film 5 coincide with relief 18 on the surface of the setting 17. Apparatus for making the components comprises a member 6a having recesses to receive the visible surfaces 2 of stones 1, with bores 8 connecting the recesses to a source of vacuum 15a so that the film 5, arranged above the setting surfaces 3, is moulded and adhered to the surfaces 3 on the application of heat from a source 16. The recessed member may be flat and stationary for a discontinuous process, whereas the rotating cylindrical member 6a is provided for a continuous process, the film 5 being fed into the apparatus by a roller 21 and a cooling region 22 being provided. Cut-outs are made in the cooled film 1.
Patent GB-1309894-A (GB)
Title: Closure for a box
IPC: H01R13/447
Filed: 1971-09-29
Abstract: 1309894 Connector boxes BUNKER RAMO CORP 29 Sept 1971 [16 Oct 1970] 45415/71 Heading H2E Lid 4 hinged at 26 to connector box 2 has a sealing member 6 secured to it in such a way that member 6 can tilt to some extent about its point of attachment and is thus self adjusting to seal uniformly the opening between lid 4 and box 2. As shown member 6 comprises rigid annular metal 8 disc joined to resilient disc 10 and is joined to the lid 4 by a screw passing into a convex portion 22 of the lid. Gap 24 thus left permits the tilting motion. The convex portion may alternatively be on the sealing member. Shoulder 14 at the periphery of resilient portion 10 aids sealing. In alternative embodiments an extension of the resilient portion may be glued into a hole in the lid, or the rigid portion may have a ball at its centre bearing against the lid.