baber/WOPTO huggingface dataset:
Patent GB-1449774-A (GB)
Title: Method of forming a shaped polyurethane article
IPC: C08J9/34
Filed: 1974-07-31
Abstract: 1449774 Mould release for use in moulding polyurethane GOODYEAR TIRE & RUBBER CO 31 July 1974 [28 Aug 1973] 33744/74 Heading B5A A method of providing a release layer on a mould to be used for the production of polyurethane articles comprises the steps of first coating the mould with a semi-permanent film of a halogenated hydrocarbon polymer having a melting point above 250‹ C. and melting or fusing this film on to the mould surface; applying over this film a layer of a hydrocarbon solid having a melting point between 60- 110‹ C.; and finally applying a layer of polyvinyl alcohol. The moulded article may then be washed with water to give a paintable surface. The halogenated hydrocarbon is preferably P.T.F.E. and the hydrocarbon solid may be wax, polyethylene or polypropylene. In an example, a decorative microcellular polyurethane part 14 is moulded on to a wheel 11 in a cavity defined by the wheel and a lower mould part 5, the lower mould part having first been coated as described above. The polyurethane composition is injected through port 15 to form the decorative part 14. After removal from the mould, the moulding was washed with hot water (75-95‹ C.) and then painted. After repeated use, the mould may be cleaned by washing in diethylene glycol followed by a solvent to remove the diethylene glycol, and then recoated according to the steps outlined above.
Patent GB-430141-A (GB)
Title: Improvements in electric systems for indicating or measuring the flow of liquids
IPC: G01F1/00
Filed: 1934-11-24
Abstract: 430,141. Electric signalling systems. ELECTROFLO METERS CO., Ltd., ENGEL, F. V. A. E., and HANCOCK, A. L., Abbey Road, Park Royal, London. Nov. 24, 1934, No. 33802. [Class 40 (i)] In a system for measuring fluid flow, the indications are transmitted electrically in accordance with the operation of two circuit varying means, the first comprising an autotransformer 20 operable by a float 1 and the second consisting of a variable resistance 13 controlled in accordance with the differential operation of the floats 1 and 2. The resistance 13 comprises a number of contact rods 11 connected to resistances and adapted to be raised and lowered into conducting liquid 12 by a pulley 7 differentially operated by pulleys 6, 8 controlled by the floats 1, 2. In order to overcome frictional errors inherent in a direct coupling between the pulley 8 and the contact 21 the pulley controls a relay motor 27 which operates the contact arm 21 in accordance with the movements of the float 1. Specifications 409,218, [Group XXXVI], and 430,089, [Group XXXVII], are referred to.
Patent GB-1524076-A (GB)
Title: Process for production of isochromans
IPC: C07D311/78
Filed: 1975-08-14
Abstract: Isochromanes of the formula (1) <IMAGE>  are prepared by reacting an arylalkanol of the formula (2) <IMAGE> with a cyclisation agent in the presence of a catalyst under the following conditions:     (1) the cyclisation agent employed is an acetal of the formula (3) <IMAGE> (2) the catalyst used is p-toluenesulphonic acid or phosphoric acid,   (3) the reaction mixture contains no hydrogen chloride whatsoever or corroding halide salts or chloromethyl methyl ether, neither during nor after the reaction,   (4) the reaction temperature is kept in a range from 80-95 DEG C, (5) the concentration of acid is 1 to 100% of the weight of the reaction mixture,   (6) the ratio of acetal to arylalkanol is at least 0.1:1, and (7) the reaction is carried out in the presence of an azeotroping agent.   The meaning of the individual symbols can be found in Claim 1. The process is simple and economical to carry out.
Patent GB-1390919-A (GB)
Title: Lasers
IPC: H01S3/095
Filed: 1971-07-20
Abstract: 1390919 Gas turbine engines ROLLSROYCE (1971) Ltd 18 July 1972 [20 July 1971] 33872/71 Heading F1G [Also in Division H1] A gas dynamic laser uses an active medium produced by bleeding off gases from a gas turbine engine and injecting at least one additional substance into the extracted gases. As shown in Fig. 1, combustion gases are bled off from the combustion chamber 3 of an aircraft gas turbine 1, and pass through a duct 7 to a reservoir/combustion chamber 8 where they are mixed with an additional substance injected through a duct 9. Normally the temperature in the chamber 8 is raised by burning extra fuel in the combustion chamber 3 products, the gases being then passed through "slot" or 2-dimensional nozzles 10 to an expansion chamber 11 in which population inversion is obtained. This chamber, together with resonator mirrors (not shown) having an optical axis 12, forms the laser cavity C. The gas mixture in the chamber 11 is exhausted into the engine jet pipe 5 or to the atmosphere either through a compressor 13 and exhaust duct 14 or a diffuser. In a modification, Fig. 2 (not shown) the bleed gases are taken from the high pressure compressor (HP2) of the engine. A modified laser cavity is shown in Fig. 5, in which the inlet and exhaust gases pass through respective sets of aerodynamically-shaped guide vanes 18, 19 forming double supersonic turning nozzles. Nozzle cooling is used, either by passing liquid or gas through channels within the nozzle array or by introducing a film of cool gas over the nozzles. Population inversion may occur in the CO 2  component of the gas mixture with nitrogen preferably used as a vibrational energy exchange pump for the upper laser level of the CO 2 . The gas turbine is driven by aviation Kerosene and either the same fuel may be added to the combustion chamber 8 or similar fuels such as benzene, acetylene or ethylene. The added substance may be nitrogen, carbon disulphide, carbon dioxide, carbon monoxide, air, cyanogen or finely divided carbon.
Patent GB-1411788-A (GB)
Title: Electronic calculating machines
IPC: G06F7/68
Filed: 1972-07-20
Abstract: 1411788 Calculators; function generators R J P JONES 19 Oct 1973 [20 July 1972] 33921/72 Heading G4A A calculator includes a function generator D supplying a stored series of pulses in a pattern determined by the function, e.g. logarithmic, trigonometric. The function generator may be recirculating MOS shift register, magnetic disc or tape, light chopper, or delay line. In the embodiment described the function is logarithmic and input numbers are counted down by clock pulses while pulses from the function generator are added or subtracted in an accumulator E whereby multiplication and division of numbers may be performed. A keyboard and encoder provide parallel BCD input of successive digits to an input register after which clock pulses are supplied to a number register B until coincidence between the contents of the input and number registers is detected, and at the same time the function generator shift register is stepped by the clock pulses and the "1" pulses in the stored pattern are counted in accumulator E. The contents of number register B are supplied to an output device C, e.g. display tubes, lamps, printer, punch or magnetic recorder. A second number may be entered in a similar way after resetting register B, accumulator E being counted up or down depending on whether multiplication or division is required. Finally, accumulator E is counted down to zero by the function generator pulses while the number register B is counted up by clock pulses so as to anti-log the result. Where the input number is such as to require more than one cycle of the function generator, the frequency of the clock pulses supplied to the number register B is increased by successive powers of 2 in successive cycles while the function generator operates at the basic clock frequency. Simple addition and subtraction may be performed by passing pulses directly between the number and accumulator registers, and similarly the logarithm and anti-logarithm of an input number may be derived and displayed, e.g. for use in calculating powers of numbers. Other functions such as sine, tan may be loaded into the function generator or separate function generators may be provided.
Patent GB-507068-A (GB)
Title: Improvements in or relating to the shaping of shoe soles
IPC: A43D35/00
Filed: 1937-12-08
Abstract: 507,068. Shaping soles. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation) Dec. 8, 1937, No. 33937. [Classes 17 (i) and 17 (ii)] A sole-moulding machine of the kind described in Specification 400,930 is modified to form a bulge at the central area by providing recesses in members clamping the sole and means acting after the clamping, and projecting into the recesses, to form a bulge in the sole. A sole is positioned by gauges 24, 26, 28 on a rubber blanket 22 covering the upper surface of a form 18 having a central recess 36. An upper form 20 then descends, as described in the prior Specification, to clamp the edges of the sole. A plunger 30, carrying a bulgeforming member 32 shaped similarly to the recess 36, then descends to form the bulge in the sole. The member 32 is pivoted to the plunger, and adjustable by a screw 43 to vary the position at which the bulge finishes at the rear of the waist. As shown, a supplementary member 52 extends the bulge into the fore-part of;the sole, the member being pivoted at 54 to the upper form and actuated by a screw 62 carried by the plunger 30 and co-operating with a rod 56 guided by a strap 60 and pivoted to the free end of the member 52. When the sole has been secured to the shoe, the subsequent levelling operation causes the sole margin to fit closely against the shoe upper. Specification 463,632 also is referred to.
Patent GB-505924-A (GB)
Title: Improvements in or relating to pole or like fittings
IPC: E04H12/24
Filed: 1937-12-08
Abstract: 505,924. Attachments to posts. GENERAL ELECTRIC CO., Ltd., and DEBENHAM, W. F. S. Dec. 8, 1937, No. 3398,7. [Class 20 (i)] A post finial 10 is formed integrally with a clamp part 12 which coacts with another clamp part 16, whereby the finial and a bracket support 18 attached to one of the clamp parts, are secured to the post in one operation. The clamp part 12 may be provided with screwed projections 13 to receive clamping bolts 15, or both clamp parts may be provided with abutting flange portions to receive through bolts.
Patent GB-1187858-A (GB)
Title: Infra-Red Quenching Photoconductive Material
IPC: C09K11/88
Filed: 1967-07-25
Abstract: 1,187,858. Photo-conductive material. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 25 July, 1967 [15 Aug., 1966], No. 34100/67. Heading H1K. An infra-red quenching photo-conductive material is prepared from a mixture or solid solution of CdS and CdSe by sintering the mixture or solid solution in the presence of an element of Group I B  of the Periodic Table as an activator, in a free-oxygen-containing atmosphere at 600 C. for 40 minutes, pulverizing the sintered material, refiring the particles with a flux in a free-oxygen-containing atmosphere at 600 C. for 40 minutes to promote growth of micro-crystals, refiring in sulphur vapour at 500 C. for 15 minutes to treat the surfaces of the micro-crystals and firing in vacuum at 500 C. for 15 minutes. The Group I B  element may be added as copper or silver chloride to a suspension of the mixture or solid solution of CdS + CdSe, the precipitate dried and then sintered as above. The pulverized product is washed with water and treated with an aqueous solution of CdCl 2  + NH 4 Cl to provide the flux. The final product may be dispersed in ethyl cellulose and coated on gold-plated glass.
Patent GB-639030-A (GB)
Title: A prefabricated wooden construction comprising pieces of lumber
IPC: B27M3/00
Filed: 1947-12-24
Abstract: 639,030. Dowel pins. PITTSBURGH SCREW & BOLT CORPORATION. Dec. 24, 1947, No. 34177. Convention date, March 16, 1944. [Class 89 (ii)] [Also in Groups X and XXIII] Metal dowel pins 2, as used for driving into holes previously drilled through a series of sideby-side rows of pieces of lumber to form a prefabricated unit, have a spiral thread 3 the pitch of which is steep enough to ensure rotation of the dowel when driven into the said holes. The angular pitch of the thread is not more than 45 degrees to the longitudinal axis or is greater than 45 degrees to a plane passing transversely through the dowel.
Patent GB-383447-A (GB)
Title: Improvements in the process of drying webs of fabric
IPC: F26B13/16
Filed: 1931-12-10
Abstract: 383,447. Drying materials in long lengths. BUTHION, H., 50, Cours de la Liberte, Lyons, France. Dec. 10, 1931, No. 34289. Convention date, June 17. [Class 34 (i).] To compensate for shrinkage in a web of fabric a, b being dried by passage round a rotary perforated drum through which air is passed outwardly or inwardly, the fabric is fed to the drum at a rate exceeding the rate at which it leaves the drum. The rate may be controlled by a split pulley adjusted by a nut. A stationary shield 32 overlaps and masks the portion of the drum between the points where the web runs on to, and off, the drum. Partitions adjustable by screws 11 are provided within the drum to control its effective width. The fan conduits, which include a heater, are connected to the interior of the drum and to the chamber 1 outside the drum, part of the air in circulation being continuously discharged. As shown in the Figure, two drums may be operated in series.
Patent GB-900023-A (GB)
Title: Method and apparatus for making pressure seals between metallic surfaces, more especially in electron tubes
IPC: H01J5/28
Filed: 1958-10-27
Abstract: 900,023. Welding by pressure. EITELMcCULLOUGH Inc. Oct. 27, 1958 [Dec. 5, 1957], No. 34315/58. Class 83 (4). [Also in Group XL (a)] A method of making articles, e.g. electron tubes, comprising parts presenting metallic sealing surfaces joined together in a pressure seal, comprises placing the parts in a vacuumtight chamber removing air from the chamber, heating the metallic sealing surfaces by inducing an electric current therein while maintaining vacuum or inert conditions in the chamber, and forcing together the metallic sealing surfaces while hot with sufficient pressure to form a permanent seal, the temperature to which the metallic sealing surfaces are heated being less than the melting temperature of said surfaces. In the arrangement shown, a double triode tube 10 comprises a plurality of ceramic rings and a plurality of metal rings, e.g. of nickel or an alloy. The ceramic rings have a molybdenummanganese metallizing coating covered by a nickel sealing surface and thin copper sealing rings (not shown) are interposed between the ceramic and metal rings. Terminal tabs arranged in two diametrically opposed rows are connected to the metal rings. The tube parts together with an elevating ring 100 and a pressure ring 102 are loaded into a cylindrical jig 94 and supported on a cylindrical stand 98 seated in a recess 45 in a base-plate 40 having apertures 43 and 44 leading to a pumping system. A coupling 72 is connected to an hydraulic system. A glass cylinder 80 and a ram 82 are held in a recess in the coupling 72 by frictional engagement of the cylinder 80 with sealing rings 77 and 78 surrounded by a cooling coil 79. The ends (not shown) of a cooled radio frequency coil 85 are supported from an insulating platform 87 clamped to the coupling 72 by a screw 88. The jig 94, stand 98, rings 100 and 102 and ram 82 are made of a dielectric material such as ceramic. In operation the cylinder 80 is raised and the stand 98, jig 94, the tube parts and rings 100 and 102 placed in position. Heater leads 108 and 109 are then clipped to the tube heater terminals and the cylinder 80 lowered to the position shown in which it engages a sealing ring 47 surrounded by a cooling coil 48, whereupon pumping is commenced. The tube parts are then outgassed and the sealing surfaces cleaned by r.f. heating current induced by the coil 85 and the cathode is formed by applying current to the leads 108 and 109. The ram 82 is then operated to form the pressure seals. The prior art of forming the metallic sealing surfaces with an optical finish is referred to.
Patent GB-392468-A (GB)
Title: Improvements in or relating to crates, boxes or the like containers
IPC: B65D6/16
Filed: 1932-12-05
Abstract: 392,468. Collapsable crates. WATERS, W. T., Scindia Cottage, Burntwood Lane, Cateiham, Surrey. Dec. 5, 1932, No. 34369. [Class 18.] A collapsable box or crate adapted for repeated use has its four sides connected by flexible steel or similar metal strips A secured between the inner surfaces of the side battens C and slats B affixed thereto. The container may be kept open by means of a base part pressed down into position.
Patent GB-1322941-A (GB)
Title: Flat-bed letterpress printing
IPC: B41N6/00
Filed: 1970-07-16
Abstract: 1322941 Printing plates W & S MAGOWAN (IRELAND) Ltd and W A N MAGOWAN 16 July 1970 [17 July 1969] 34455/70 Heading B6C A mounting block for a printing plate is made of asbestos reinforced with thermo-setting resins and the thickness of the block is 0À8 to 0À9 inches with a tolerance of not more than Œ0À001 inches. A letterpress printing plate is described having a block thickness of 0À818 inches, an adhesive film of 0À004 inches and a rubber relief plate of 0À096 inches.
Patent GB-1444588-A (GB)
Title: Corona generation apparatus
IPC: B01J19/08
Filed: 1973-07-19
Abstract: 1444588 Ozonizers; corona discharge apparatus PURIFICATION SCIENCES Inc 19 July 1973 [17 Aug 1972] 34492/73 Heading H5H Corona discharge cells 436 are immersed in a dielectric liquid 446 such that the liquid is in contact with the outer surfaces of the electrodes to cool them and surrounds the edges of the electrodes to prevent sparking therebetween outside the discharge chamber. Cells 436 consist of a pair of parallel, flat electrodes 243, 244 spaced apart by gasket 444 at the perimeter and disc(s) 450 at the centre. The disc(s) and gasket are made of silicon coated glass or, when the liquid is oil, fluorosilicon rubber. One or both cell defining surfaces of the electrodes are coated with a porcelain enamel layer, fired on. The disc maintains the electrodes parallel and smooths fluid flow through the cell. When stacked in arrays 440, 442 in a reactor core 412 the cells are separated and the electrodes maintained parallel against internal pressure by corrugated spacers 278, the cooling liquid being directed into the spacer channels 286 by baffles. Circulation from stainless steel sealed reactor housing 410 through a heat exchanger 416 is by pump 420. Specifications 1,265,725; 1,310,364; 1,310,365; 1,370,212 and Specifications 1,444,589 and 1,444,590 are referred to.
Patent GB-785258-A (GB)
Title: Products for preparing the large intestine for x-ray photography and method of manufacturing the same
IPC: A61K33/24
Filed: 1955-12-02
Abstract: A product for preparing the large intestine for X-ray photography comprises a laxative agent, preferably one that will produce Holzknecht's long movements of the bowels, and a tanning agent.  As examples of suitable laxatives are given isatin derivatives, e.g. 3,3-bis-(p-acetoxyphenyl)-oxindole and a -pyridyl-di-(p-hydroxyphenyl)-methane and the esters thereof. As suitable tanning agents may be used, tannin mimosa, chestnut and quebracho, synthetic tanning agents and aluminium subacetate. The products of the invention are used in the form of enema solutions; a first, comprising a solution of the product according to the invention and then a second, comprising also an X-ray contrast medium, e.g. barium sulphate.  In the method of preparation according to the invention both components are dissolved in a mutual solvent, the solvent is then evaporated and more tanning agent is admixed with the resulting residue to provide a final product containing preferably 0.2 per cent by weight of laxative agent.
Patent GB-1388796-A (GB)
Title: Diagnostic agent
IPC: A61K47/36
Filed: 1973-07-20
Abstract: 1388796 Diagnostic agent PHARMACIA AB 20 July 1973 [21 July 1972] 34666/73 Heading A5B A diagnostic preparation facilitating examination of body cavities by optical methods comprises an aqueous solution containing 15 to 45% by weight, based on the total volume of the solution of dextran having an average molecular weight of from 10,000 to 200,000 and 5 to 20% w/v of one or more additional substances selected from physiologically tolerable monosaccharides, oligosaccharides and sugar alcohols such as glucose, fructose, invert sugar, maltose, saccharose, sorbitol and/or mannitol. The preparation may also contain an anti-bacterial agent such as an antibiotic, sulpha preparation, hexachlorophene or parahydroxybenzoic acid ester, and/or an electrolyte salt such as sodium chloride, acetate or lactate.
Patent GB-396991-A (GB)
Title: Improvements in or relating to cartridge fuses
IPC: H01H85/157
Filed: 1932-12-07
Abstract: 396,991. Fusible cut-outs. ARNOLD, C: L. and M. K. ELECTRIC, Ltd., Wakefield Street, Edmonton, London. Dec. 7, 1932, No. 34673. [Class 38 (i).] The cap of a cartridge type fuse is pre-formed with one or more indentations, ribs or other irregularities which coact with corresponding irregularities on the body of the cartridge to prevent rotation of the cap relative to the tube. A fuse of this type may be provided with a loose outer cap to which the fuse wire is attached and which acts as an indicator to show when the fuse has blown. As shown in Figs. 1 and 2, each of the caps of the fuse is provided with a rib 5 which engages a furrow 7 in the tube 1. The furrow may either be pre-formed or may be formed by the cap as it is forced on to the tube. Figs. 3 and 4 show a fuse fitted with loose outer caps. The fuse wire passes through the inner fixed caps, which are similar to those of Fig. 1, and is joined to the outer caps. When a fuse blows the outer caps can be removed from the inner caps, so that upon removal of the cartridge from the circuit the condition of the fuse wire is easily detected.
Patent GB-1161037-A (GB)
Title: Arresting Gear for Aircraft or other Vehicles
Inventor: MARCHERON CLAUDE LOUIS EDOUARD
IPC: B64F1/02
Filed: 1967-07-27
Abstract: 1,161,037. Arresting aircraft. SOC. D'EXPLOITATION DES MATERIELS HISPANOSUIZA. 27 July, 1967 [28 Oct., 1966], No. 34682/67. Heading B7G. An arrester net or cable 1 is attached to a tape 2 which passes through a braking device 3 and is stored in a rectangular housing 4 in coils as shown. It is stated that in such arrangement the tape tends to tangle at the end where it is drawn through housing 4 and to prevent this the free edges of the tape engage opposed interior walls of the housing, the two other walls 7A, 7B being apertured as at 8 and 9 so that the volume 6A of the housing on the side 2A of the tape may be subjected to pressure and the volume 6B on side 2B of the tape subjected to suction, whereby the tape is urged as shown against one wall of the housing. Apertures 8 and 9 are connected respectively to manifolds 16 and 19 in turn connected to a pressure cylinder 14 and an ejector 17, 18 energized by fluid from cylinder 14. In an alternative construction apertures 8 and 9 are connected respectively to the delivering and suction sides of a motor driven compressor.
Patent GB-487331-A (GB)
Title: Improvements in and relating to axle boxes for light railways
IPC: F16D69/02
Filed: 1936-12-17
Abstract: 487,331. Axle - boxes ; lubricating. EICHELGRUN, M. Dec. 17, 1936, No. 34717. [Classes 12 (i) and 12 (iii)] [Also in Group XXVI] An oil-tight axle-box for light-railways is in two sections, one of which has a screwed projection carrying a cap 9 which is screwed inwardly to put lubricant in the axle-box under pressure. Accidental rotation of the cap 9 may be prevented by a leaf spring 10. The latter may be omitted and a spring 17 may act to screw in the cap 9. The axle-box halves abut at ground transverse faces 3 which are pressed into mutual contact by the sides 6 of a yoke 5 and of an apron 18. Lubricant leakage along the axle is prevented by a V-shaped felt ring 13 backed by a V-shaped resilient metal ring 15. The latter is subjected to the action of the lubricant pressure with or without the addition of a spring or springs 14. The sides 4 of the ball or roller bearing housed in the axle-box do not contact with the latter.