baber/WOPTO huggingface dataset:
Patent GB-825749-A (GB)
Title: Improvements in methods for the treatment of metal articles made of refractory alloys
IPC: C23C10/42
Filed: 1956-02-14
Abstract: In a method of treating an article made of a refractory alloy having as main component(s) nickel and/or cobalt and further containing chromium and possibly one or more of titanium, aluminium, molybdenum, tungsten, zirconium, iron, manganese, cerium and thorium, in which the article is subjected to a heating operation at a temperature higher than 700 DEG C. in a protective neutral or reducing atmosphere containing vapours of at least one halide of a metal component of the alloy, said halide having a boiling point higher than 700 DEG C., the atmosphere contains no halide other than inert halides (i.e. halides which do not cause the formation of a superficial diffusion alloy on the article during the heating operation) and halides of the metals of the alloy.  Where the halide having a boiling point higher than 700 DEG C. is a chromium halide, the proportion of such halide in the atmosphere should be such that the diffusion of chromium into the article does not bring the chromium percentage at the surface of the article to more than 1.5 times the chromium percentage in the mass of the article.  For other metals, any possible diffusion is preferably limited to an amount which does not increase the percentage thereof at the surface of the article to more than twice the value in the mass of the article.  The article may be a gas turbine blade and may be composed of an alloy consisting of ..I.II .Chromium.18%.19% .Molybdenum.3.5-5%.15% .Aluminium.1-1.5%.1.5% .Titanium.2.7-3.2%.2.5% .Carbon.less than 0.1%.0.5% .Cobalt.12-15%.50.5% .Nickel.remainder.11% The heating operation may be a hot-shaping or a thermal treatment, e.g. skin-annealing, with or without simultaneous chromizing, at temperatures ranging from 900 DEG C. to 1300 DEG C. Skin-annealing is preferably carried out in two successive temperature steps, the first being higher than the second.  If desired, the proportion of titanium and aluminium in the surface of the articles may be reduced before skin-annealing by performing a controlled oxidation at 700 DEG -750 DEG C.  The heating operation may be performed in an atmosphere comprising hydrogen, cracked ammonia, nitrogen, helium or argon together with (a) one or more inert halides, e.g. nickel and cobalt fluorides, (b) one or more active halides (i.e. halides which cause the formation of superficial diffusion alloys on the article), or (c) a mixture of inert and active halides.  The halides may be formed directly or indirectly, e.g. by using (a) a cementation product, (b) a cementation product together with a regeneration mass, (c) a halogen acid or ammonium fluoride acting on a metal mass, or (d) a halogen acid or ammonium fluoride acting on the metal of the article.
Patent GB-342160-A (GB)
Title: Improvements in and relating to the production of ammonium sulphate
IPC: C01C1/242
Filed: 1930-02-11
Abstract: Ammonium sulphate is made by neutralizing sulphuric acid with ammonia in two or more stages with intermediate cooling.  The first stage may be effected in a preliminary vessel until a solution of ammonium sulphate or bisulphate is obtained which is unsaturated on cooling to 20 DEG  C.  The heat of reaction is dissipated in a cooler and the cold solution fed to a saturation vessel into which ammonia is fed until ammonium sulphate precipitates.  The separated mother liquor, after addition of sulphuric acid to cause a slight heating and prevent deposition of solid, may be fed to the preliminary vessel or the saturator. Alternatively, the solution in the preliminary vessel may be continuously circulated through a cooler and a volume equal to that of the added sulphuric acid supplied to the saturator.  The sulphuric acid may first be diluted with water or mother liquor and cooled in a separate vessel, or the mother liquor may be mixed with sulphuric acid and returned to the saturator as described above.
Patent GB-1373719-A (GB)
Title: Transmission device for a vehicle
IPC: F16H57/037
Filed: 1972-02-01
Abstract: 1373719 Vehicle power units AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 1 Feb 1972 [10 March 1971] 4615/72 Heading B7H  A transmission arrangement for a vehicle includes a hydrokinetic torque converter C, which drives gear-box B by a shaft 15, and a differential mechanism which is disposed between the converter C and gear-box B at a lower level, the driving pinion 24 of the differential being mounted on a shaft 23 which is offset from the gearbox output shaft 20 and is driven by the output shaft 20 by gears 21, 22. Preferably the plane containing the axes of shafts 20, 23 is inclined at an angle of about 55 degrees to the vertical. The teeth of the crown wheel 25 of the differential are on the opposite side of the crown wheel to the rest of the differential mechanism which is located at the centre line of the vehicle, thus allowing drive shafts 31 of equal length to be utilized. The gear-box B (which may be automatic) is supplied with hydraulic fluid under pressure by a rotary pump 32 which is driven by the impeller 13 of the converter C and which is located in a recess 36 in a partition wall separating the converter casing 10 from the differential casing 11.
Patent GB-916195-A (GB)
Title: Improvements in or relating to earth excavating machines
IPC: E02F3/352
Filed: 1961-02-07
Abstract: 916,195. Earth - excavating machines. BAUUNTERNEHMUNG E. HEITKAMP G.m.b.H. Feb. 7, 1961 [Feb. 8, 1960], No. 4618/61. Class 68 (1). [Also in Group XXIII] An earth-excavating machine, particularly suitable for. the excavating out of the floors of haulage ways in mines, consists of a selfpropelled, tracked chassis carrying a horizontal turntable 19 on which is mounted at 25 a vertically tiltable frame 27 supporting at least two different earth-excavating appliances, e.g. a scoop 54 and percussive drills 47, which can be brought as required into and out of a working position appropriate to the appliance.
Patent GB-608069-A (GB)
Title: Improvements in chlorine-dioxide-producing compositions
IPC: C01B11/02
Filed: 1946-02-14
Abstract: A stable, solid composition for the generation of chlorine dioxide comprises a chlorite and a solid organic acid anhydride. Anhydrides specified are those of phthalic, succinic, maleic, glutaric and glutaconic acids with or without substituents, e.g. fluorine, chlorine, bromine, iodine, methoxy, ethoxy, tertiary-butoxy, nitro and sulphonic acid groups, and those of the aliphatic mono-basic acids having 12 or more carbon atoms, e.g. lauric, myristic, palmitic and stearic acids with or without a substituent such as halogen.  The composition may comprise a mixed anhydride or a mixture of anhydrides.  Desiccants, e.g. sodium monoxide, sodium hydroxide and anhydrous calcium chloride, and anhydrous diluents, e.g. sodium chloride, sodium carbonate, sodium di- and mono-hydrogen phosphate, trisodium phosphate and sodium bicarbonate may also be included in the compositions. Specification 608,068 is referred to.
Patent GB-1514154-A (GB)
Title: Hydraulic braking system for a fishing reel
IPC: A01K89/033
Filed: 1977-02-04
Abstract: 1514154 Fishing reels GARCIA CORP 4 Feb 1977 [9 Feb 1976] 04694/77 Heading A1A Frictional brake linings 26, 27 are brought into contact with the rotatable spool 6 of the reel by rotary movement of lever 47 to move associated piston 46 in a hydraulic cylinder 48 and thus move piston 30 to apply the brake. A third piston 55 is resiliently biassed by an adjustable spring 57 to move in a further cylinder 43 and so avoid a sudden pressure build-up in cylinder 48.
Patent GB-231638-A (GB)
Title: An improved table
IPC: A47B37/00
Filed: 1924-02-23
Abstract: 231,638. Marston, G. E. Feb. 23, 1924. Tables combined with receptacles; tables with mechanically-connected movable parts.-A table top b is pivoted about a horizontal axis c between its front and rear edges so that on inverting the top, the downwardly and finally upwardly swing- ing edge of the top engages with and raises a rack d guided in the table and normally housed below the level of the table top. The rack has a ledge i projecting, when the rack is raised, above the table top, which is pivoted at c nearer its front than its rear edge. The part of the top which, on inversion, projects forward is supported on flaps g which may carry receptacles h and are vertically hinged at and normally close the front of the table, or is supported on a horizontally-hinged board n turning through a right angle to a vertical position and carrying a flap m then projecting forward. The top may rest on felt-covered blocks e on the boards f on the flaps g. The rack d is supported on pairs of parallel links j and serves to hold canisters and bins k. A narrow strip l of the back of the table top carries receptacles o and is raised by the rising rack d. According to the Provision Specification, a narrow strip at the front of the table is turned down to a vertical position in front of the table so that after inversion, the rear of the top rests on this strip. Also, on inversion of the top, the front edge in turning depresses the front ends of a pair of levers thereby raising the rack d supported on their rear ends. The front edge then engages with a catch comprising two members at right angles, and causes one, a hook member, to hold the front ends of the levers depressed, until, on returning the top, the catch is released and the rack falls within the table.
Patent GB-830828-A (GB)
Title: Improvements relating to trolleys
Inventor: TOMLINSON HARRY
IPC: B62B1/12
Filed: 1957-02-12
Abstract: 830,828. Shopping trolleys. TOMLINSON GAUGE CO. Ltd. March 25, 1957 [Feb. 12, 1957], No. 4716/57. Class 108(1) [Also in Group XVII] A hand propelled trolley for shopping incorporates a pair of intersecting frames 10, 11 which are pivoted at the intersection so that the trolley may be collapsed and in which one frame 10 serves as a ground rest 104 with the framework extended and the other frame 11 is mounted on wheels 113, and in which a separately formed receptacle 17 is detachably fitted to the said frames. The bag 17 rests on cranks 111 of the frame 11. Pegs 102 and 115 on the top of frames 10 and 11 releasably support the receptacle 17 of canvas or other flexible material which has reinforcing bars at top front and rear edges; the ends of the bars being formed into eyes, which engage said pegs. The framework is locked in the extended position by an over centre linkage 12. Handle 141 is telescopically adjustable in a tube 13 which is pivotally connected to axle 112 and engages an eye 101 on the top member of frame 10.
Patent GB-184500-A (GB)
Title: Improvements in and relating to grinding, burnishing, dressing or like machines
IPC: B24B5/38
Filed: 1921-02-10
Abstract: 184,500. Coryell, W. C. Feb. 10, 1921. Disc apparatus; feed devices.-A machine for treating the edges of strips, bands, &c. of metal, glass, leather, &c. comprises a pair of dressing- wheels with hyperboloidal surfaces, between which the article is fed at an angle to the axes of the wheels. The work 46, Fig. 9, is constrained between rolls 47, 48 to move past the dressing-wheels 38, 39, Figs. 8 and 9. The wheels rotate in boxes 28, 29, which are adjustable towards each other in a guiding-slot 26 by a right and left-handed screw 31 operated by hand-wheels 34, 35. The wheels 38, 39 are driven from shafts 42, 44 through universal couplings 43, 45. Sides 23, 25 of the slot 26 are parts of a carrier 17 supported by hangers 15, 16, which pivot on trunnions 14, 13 carried by uprights 11, 12 on a bed 10. A bolt 21 passing through an arm 18 depending from the carrier 17 and through a curved slot 20 in a web 19 of the base 10 secures the carrier in any angular position. The curvature of the edge treated is determined by the angle between the plane of the work 46 and the plane containing the axes of the wheels 38, 39. In a modification, the axes of dressing-wheels 136, Fig. 13, are always horizontal, and guide rolls 124, 125 are carried by arms 122, 123 pivoted to pedestals 113 and secured in any angular position. The axis on which the carrier 17 or the arms 122, 123 is or are pivoted intersects the axes of the dressing- wheels at points corresponding to the circular sections of the hyperboloids, which sections have a minimum diameter. The wheels may be formed from a piece of material by rotating it in contact with a thin cutting-substance held at an angle to the axis of rotation and not in the same plane with it. Steel cutters with straight cutting-insets or wheels with file-cuts along the generators may be used. Flexible work is maintained under tension by driving the rolls 47 and applying a brake to the rolls 48.
Patent GB-1392030-A (GB)
Title: Filter press plates
IPC: B01D25/21
Filed: 1971-02-24
Abstract: 1392030 Filter press plates FLETCHER FILTRATION Ltd 24 May 1972 [24 Feb 1971] 4816/71 Heading B1D A filter press plate comprises a main section 2, made of rubber or other polymer moulded on to a rigid iron or steel core, to which is removably secured a section 16 having a through hole 18 which together with the holes 18 in other sections defines a filtrate discharge duct, each hole 18 communicating with the drainage surfaces of main section 2 through channels 14, 20. Main section 2 may have one, two or four sections 16 at its corners. Sections 16 may be wholly of rubber or polymer or have a rigid core like the main section. O rings 26, 28 provide seals between adjacent sections 16 and between sections 2, 16. Fig. 3 (not shown) illustrates replacement of rings 26 by aperfured pieces of filter cloth (30), similar to the cloths covering main sections 2 but having only a sealing function. Optional projection 36 in Fig. 4 protects section 16 against damage in use.
Patent GB-1382993-A (GB)
Title: Data storage
IPC: G11C13/04
Filed: 1971-02-17
Abstract: 1382993 Uses of tenebrescence EMI Ltd 17 Feb 1972 [17 Feb 1971] 4860/71 Heading C4S [Also in Divisions G2 and H1] A method of data storage comprises modulating the one or more beams issuing from the cathode 2 of an electron tube according to data signals, and which are incident an cathodochromic target 4, directing coherent radiation (e.g. from a laser) to a further storage medium 9 via the cathodochromic material and also directing reference radiation from the same coherent radiation source to the medium 9 to produce thereon a holographic image representing the temporarily stored information. Target 4 may be single crystal or deposited; wedgeshaped or parallel sided, the former reducing unwanted reflections. Reflective and electrically conductive layer 6 may be of Al. Plane glass window 7 is preferably highly transmissive and non-reflective to the coherent radiation. Film 9 may be fed to a computer, and binary data applied to film 9 in binary form or as a fourier transform, by positioning of the planes of members 4 and 9 in an appropriate optical system. The storage medium 9 may be the target of a pick-up tube. Reference is included to Specification 1,322,337.
Patent GB-750604-A (GB)
Title: Colouring materials of the anthraquinone series
Inventor: BRADLEY WILLIAM
IPC: C09B1/20
Filed: 1952-02-26
Abstract: The invention comprises copper containing complexes of the formula:-Cu(NR-CX=NR1) wherein R and R1 represent the same or different 2-anthraquinonyl radicals which are either unsubstituted or substituted with groups other than the sulphonic acid or acylamino groups and X represents a hydrogen atom, or an alkyl, aryl, aralkyl or substituted alkyl or aralkyl radical. They are prepared by heating an amide of the formula:-R-NH-CX=N-R1 or an N-alkyl or N-aralkyl derivative with copper or a copper compound using at least one atomic proportion of copper, free or combined, for each molecular proportion of the amidine, and isolating the copper complex formed.  The amidine may be prepared in situ from 2-aminoanthraquinones or 1-halogen-2-aminoanthraquinones in presence of ethyl orthoformate or formaldehyde or from the N-alkyl or N-aralkyl derivatives of such anthraquinones. Examples describe the preparation of the same copper complex of N.  N1-di(2-anthraquinonyl) formamidine in various ways viz. (1) by making the amide from 2-aminoanthraquinone and ethyl orthoformate, followed by heating with copper bronze or copper acetate in nitrobenzene; (2) in one step from 2-aminoanthraquinone, formaldehyde, and copper bronze, (3) methylation of N, N1-di-(2-anthraquinonyl)-N-methyl-formamidine with methyl, p-toluene sulphonate, followed by heating with copper bronze, (4) making 2, 21-dianthraquinonylaminomethane from 2-aminoanthraquinone and formaldehyde and heating with copper bronze; (5) heating 2-methylaminoanthraquinone or 2- dimethylamino anthraquinone with copper bronze; (6) heating 1-chlor -2- methylamino-anthraquinone, 2-aminoanthraquinone, and cuprous chloride in nitrobenzene, (7) heating 1-chlor-2-methylamino-anthraquinone and cupric chloride in nitrobenzene.  Also, (8) N, N1-di(2-anthraquinonyl) benzamidine is heated in nitrobenzene with copper bronze.
Patent GB-1204675-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: BEMROSE COLIN RAYMOND
IPC: F28F3/02
Filed: 1967-02-01
Abstract: 1,204,675. Plate heat exchangers. ASSOCIATED ENG. Ltd. 31 Jan., 1968 [1 Feb., 1967], No. 4971/67. Addition to 1,116,621. Heading F4S. In one modification of the heat exchanger of the parent invention the web portions 4 between adjacent fins 3 of each sheet element 2 are depressed or deformed outwardly as indicated at 4a in Fig. 1, thus forming a fluid passageway 1 which is sinuous when the opposite fins 3 are arranged in staggered relationship. The region 5 at the base of each fin 3 is also slightly depressed outwardly as shown. The fins 3 formed on either side of the passageway 1 may alternatively be arranged in aligned relationship. In another modification of the parent invention shown in Fig. 4, each pair of sheet elements are spaced apart by edge strips 24 made of a plastics material to which the elements are adhesively bonded, thus defining sealed fluid passages 23. Preferably the strips 24 have tapering outer edges. The fins 13 (and also the fins 3, Fig. 1) may be provided with dimples 25 or other means for increasing the heat exchange area.
Patent GB-1293899-A (GB)
Title: Flat pack reed relays
IPC: H01H51/28
Filed: 1970-02-03
Abstract: 1293899 Polarized electromagnetic relays AMF Inc 3 Feb 1970 [26 Feb 1969] 5022/70 Heading H1N A polarized electromagnetic relay arranged in a "low profile or flat pack" form providing all its components disposed substantially in a single mean plane has a permanent magnet 19, an electromagnet 14 and one or more sealed magnetic reed contact units 20 arranged to extend between polepieces 23, 24. When the coil 16 is not energized its core provides a flux path for permanent magnet flux so as to shunt this flux away from the contact units 20 which are thus inoperative. When the coil 16 is energized to oppose the permanent magnet flux in its core 15 the combined flux serves to operate the contact units. The polepieces 23, 24 may extend around the ends of the contact units and the relay may be encapsulated in plastics material (Fig. 1, not shown). The permanent magnet may be mounted between polar extensions (Figs. 5 and 6, not shown) allowing the magnetic axis to be parallel or normal to the cone axis. Contact units may be mounted on opposite sides of the magnet and electromagnet and the core may be remanent to provide for magnetic holding of the operated contacts until the electromagnet is energized in a reverse direction by the same or an additional coil. Fig. 10 shows a balanced layout with the electromagnet having two cores 15 surrounded by series coils 16. In a further alternative relay there are two permanent magnets (Fig. 11, not shown) on opposite sides of a single core.
Patent GB-1120684-A (GB)
Title: Improvements in cleaning liquid circulating equipment
Inventor: SEARLES CLIVE BARRINGTON
IPC: F28G9/00
Filed: 1966-02-04
Abstract: Water-cooling equipment is descaled and cleaned by adding to the circulating water, whose velocity is at least 3 feet per second, an acid, which may be hydrochloric or sulphuric acid, in an amount of from 0.1% to 3% of the water by weight, together with from 0.1% to 2% together by volume of the acid of a corrosion inhibitor and a wetting agent.  The water is circulated at not more than 9 feet per second, and is preferably mixed with the cleaning chemicals in a mixing tank in the water circuit.  The corrosion inhibitor and wetting agent may be provided by a single reagent, and be an amine or mixture of amines, a mercaptan, a heterocyclic nitrogen compound or a urea or thiourea.  Nitrogen containing cationic agents such as C12 + amines, alkylamine and quaternary ammonium compounds may be used, and alkanol-amine reaction products are stated to be particularly suitable.  Where required the acid effluent from the cooler may be neutralised by adding alkaline material as it emerges.
Patent GB-647555-A (GB)
Title: Calendar pencil
IPC: B43K29/087
Filed: 1948-02-20
Abstract: 647,555. Calendars. RITEPOINT CO. Feb. 20, 1948, No. 5120. Convention date, April 4, 1941. [Class 106 (iv)] [Also in Group XV] A pencil, Fig. 1, including a barrel A, clip B, eraser and spare lead container C, tip D and a point E, comprises two calendar elements, namely a cylindrical shell 10 and cap 11 respectively imprinted or engraved with seven vertical columns of month numbers and a horizontal row of seven characters representing day names. A plug 12, Fig. 5, secures the shell 10 to the barrel A and a decorative ring 13 may be inserted. A bushing 14 is secured in the top of the shell A and is provided at the top with seven recesses 16, Fig. 7, which part extends into the cap 11. A plug 17 is embedded in the cap 11 and carries a vertical pin 20 and horizontal pin 21, the latter being slightly smaller than a recess 16, into which it is pressed by the expansion of a spring 24, inserted between a head 22 of the pin 20 and a washer 23 abutting the bush 14, upon releasing the cap after rotating it to set the calendar, thus locking the parts.
Patent GB-937652-A (GB)
Title: Improvements in or relating to apparatus for mixing plastic, liquid or particulate solid materials or combinations thereof
Inventor: BENNETT WILLIAM DOUGLAS
IPC: B29C48/85
Filed: 1959-02-16
Abstract: 937,652. Mixing appliances. DUNLOP RUBBER CO. Ltd. Feb. 10, 1960 [Feb. 16, 1959], No. 5268/59. Class 86. [Also in Group XXVI] A mixer for rubber and other plastic materials comprises a casing 1 having a passageway 3 for the passage of the material during mixing. A rotatable mixing member 2 projects transversely across the passageway 3. The profile of the mixing member 2 conforms closely to the shape of the passageway 3; it may take the form of a helix, as shown, which increases the homogenizing effect by mixing the rubber and particulate material transversely to its direction of flow. In a modification, Fig. 2 (not shown), the mixing member is in the form of a ring. The mixing member may also be disposed with its axis at an angle of 60 degrees to 90 degrees to the axis of the passageway. The casing 1 is made in two parts, 1a, lb, which are held together by clamps as at 9 embracing flanges 7. A cooling fluid may be passed through passages 10 in the casing 1; through hollow baffles 10a, placed in the passageway 3 each side of the mixing member; and through the hollow interior of the mixing member 2. Provision is made for gas released by the mixing process to escape through the annular space 47 surrounding the shaft 41, and the vent 48.