baber/WOPTO huggingface dataset:
Patent GB-896453-A (GB)
Title: Improvements in bleaching processes using monopersulphates
IPC: C11D3/39
Filed: 1960-07-26
Abstract: Materials liable to yellow when bleached with an alkali-metal monopersulphate in the presence of manganese ions, e.g. cotton fabrics, are bleached in the presence of manganese ions with an alkali-metal monopersulphate and a perhydrate which, when added to water, liberates hydrogen peroxide, the ratio of the active oxygen content of the monopersulphate to that of the perhydrate being between 3 : 1 and 30 : 1, whereby the yellowing is substantially decreased or eliminated.  The alkali metal monopersulphate may be "Oxane", a mixture of KHSO5, KHSO4 and K2SO4 in the molar proportions of 2 : 1 : 1. Specified perhydrates are those formed from hydrogen peroxide aod sodium borate, e.g. sodium perborate tetrahydrate, NaBO2.H2O2.3H2O, and sodium borate perhydrate, NaBO2.H2O2, aluminium sulphate, urea, sodium acetate, sodium silicate, ammonium carbamate or pyrophosphates.  The treating composition may also contain sodium sulphate, sodium metasilicate sodium carbonate and tetra-sodium pyrophosphate.  Specifications 727,419, 797,701 and U.S.A. Specification 2,491,789 are referred to.
Patent GB-1175627-A (GB)
Title: Sealing Rings for use in Pipe Connections
IPC: F16L19/10
Filed: 1968-05-30
Abstract: 1,175,627. Pipe joints. H. KREIDEL, and H. KREIDEL. 30 May, 1968, No. 26050/68. Heading F2G. A sealing ring of the sort which has an edge 8 which bites into the pipe 14 when compressed within a pipe-fitting 6, 15, is provided with a slightly conical surface 12 behind the cutting edge and arranged to be forced into firm abutment with the pipe when the connection is completed so that the fitting cannot be overtightened.
Patent GB-285934-A (GB)
Title: Improved process of and apparatus for extinguishing fires
IPC: A62C5/00
Filed: 1926-10-19
Abstract: 285,934. Excelsior Feuerl÷schgerõte Akt.-Ges., and Burmeister, H. Oct. 19, 1926. Fire-extinguishing by foam.-In the production of foam by dissolving the dry foam-forming chemicals in a moving stream of water, a pump a draws water directly through a pipe d from a reservoir c. The moving stream of water draws in one of the foam forming chemicals from a hopper f, which may have a controlling valve h and a rotary agitator i. A similar hopper for the second chemical and the foam generator may be mounted on the same pipe d, or on a second pipe d employing the same, or a different pump and reservoir. Specification 250,924 is referred to.
Patent GB-822894-A (GB)
Title: Improvements in or relating to coated polyester film
Inventor: DALE THOMAS LUCAS
IPC: C08J7/043
Filed: 1955-09-13
Abstract: 822,894. Coated polyester film. WINTERBOTTOM BOOK CLOTH CO. Ltd. Sept. 13, 1956 [Sept. 13, 1955], No. 26135/55. Class 140. Polyester film is coated with an organic hydrophobic film-forming material which is receptive to clear and legible markings with ink or pencil, photographic emulsions or solutions containing light-sensitive diazo compounds, by first treating the surface of the film with a solution, in an organic solvent, of an organic polyisocyanate so as to deposit a primary coating on the surface, and thereafter further coating the treated film with an organic hydrophobic film-forming material from a solution thereof. The polyester film, e.g. polyethylene terephthalate, may be stretched to impart dimensional stability prior to coating. The polyisocyanate may be an arylene diisocyanate, e.g. toluylene diisocyanate, and the solution thereof may also contain a polyester resin. The hydrophobic film-forming material may be cellulose acetate or nitrate which may contain an abrasive and/or a partially polymerized resin compatible with cellulose nitrate and capable of being cured by baking for a short period. The solution of the hydrophobic film-forming material may also contain urea-formaldehyde modified alkyd resin and non-drying oil-modified alkyd resin.
Patent GB-954028-A (GB)
Title: A process for the stabilisation of polyvinyl chloride foam materials having closed cells
IPC: C08J9/36
Filed: 1960-07-27
Abstract: Completely expanded polyvinyl chloride foam materials having closed cells and containing not more than 10% by weight of volatile plasticizer are stablized by maintaining them at 35 DEG  to 105 DEG C. for at least 24 hours.  The heat treatment may be repeated at intervals with cooling in between.  In examples (1) a sheet of polyvinyl chloride foam containing 35% dioctyl phthalate was maintained at 50 DEG C. for 5 days (2) a sheet of polyvinyl chloride foam with no plastizer was heated at 60 DEG C., for 4 days (3) a test element with 45% plasticer was heated 3 times at 50 DEG C., for 2 days each time.  Foam materials containing more than 10% of volatile solvent, (e.g. acetone or methyl ethyl ketone) must have their solvent content reduced by heating at low temperature, e.g. 25-30 DEG C., with ventilation before being treated according to the invention. The products have substantially constant volume even when subjected to strong fluctuations in temperature and are particularly suitable for buoyancy articles, e.g. life belts and life jackets.
Patent GB-772188-A (GB)
Title: A new or improved icing indicator for aircraft
IPC: B64D15/20
Filed: 1954-09-09
Abstract: 772,188. Indicating information on aircraft. MINNEAPOLIS-HONEYWELL REGULAT- OR CO. Sept. 9, 1954 [Sept. 11, 1953]. No. 26170/54. Class 4. [Also in Group XXXV] To detect impending icing conditions on an aircraft, perforated tubes 12 and 25, Fig. 1, are positioned in the aircraft airstream e.g. in the air inlet of a gas turbine engine. Temperature variable resistances 15 and 27 responsive to the temperature of tubes 12 and 25, respectively, are connected to a bridge-operated relay circuit 100 controlling the direction of rotation of a reversible A.C. motor 114 adjusting a valve 49 to maintain a constant difference in temperature between tubes 12 and 25 by ensuring an appropriate supply of cooled air or volatile fluid, e.g. alcohol, from a reservoir 45 to an evaporator 38 of porous sintered material associated with tube 25. Tube 25 is thus maintained at a lower temperature than tube 12 so that impending icing conditions on the aircraft result in actual icing of tube 25 to block its perforations. This unbalances air pressures applied from tubes 12 and 25 to opposite sides of a diaphragm 82 so that a switch 85 is closed to switch on a heater 30 for tube 25, and a switch 135 is changed over to run motor 114 in a direction to close a valve 49 and stop the supply of cooling fluid. Heater 30 de-ices tube 25 and the cycle repeats as long as impending icing conditions obtain so that a lamp 95 is illuminated as a warning to the pilot. When actual icing conditions obtain, the perforations of tube 12 become blocked to reduce the pressure applied to the underside of a diaphragm 56. A switch 65 is closed to energise a, heater 18 for tube 12. A lamp 76 is then illuminated intermittently in a similar manner to lamp 95 to indicate actual icing conditions. An arrangement in which ice formation reduces the gap and hence air flow between concentric cylindrical members is described. Diaphragm 56 may also operate a potentiometer to control the energization of heater 18 the current through which is displayed as an indication of the icing rate. U.S.A. Specification 2,423,534 is referred to.
Patent GB-817347-A (GB)
Title: Improvements in the lubrication of bearings of revolving tables of machine tools
IPC: B23Q11/12
Filed: 1957-08-20
Abstract: 817,347. Lubricating bearings. WALDRON, F. B. Aug. 20, 1957, No. 26194/57. Classes 12 (1) and 12 (3). [Also in Group XXII] In a lubricating system for a thrust bearing 18 and a stem bearing 19 of a mushroom-shaped spindle 16 carrying a table 11 of a machine tool, the space 22 located between the bearings 18, 19 is fed continuously with oil under pressure. The oil is supplied from a pump 20 through a conduit 21 to the space 22. That oil which reaches the bottom of the bearing 19 is delivered to a channel 24 through a conduit 23 and the oil passing through the thrust bearing 18 also passes into the channel 24 from which the oil flows through holes 25, 26 to an oil sump 27 to be recirculated by the oil pump 20. An oil filter 28 is disposed on the suction side of the pump 20. The table 11 is driven through a ring gear 12, pinion 13, bevel gears 14 and a gear-box 15.
Patent GB-246594-A (GB)
Title: Improvements in sealing wires into glass
IPC: C03C27/04
Filed: 1924-11-03
Abstract: 246,594. Hoge, H. Nov. 3, 1924. Leading-in wires.-Wires, which are required to be sealed in glass, are coated with glass by rolling the wire between two hard surfaces having powdered glass between them. The particles of glass are thus pressed permanently into the wire. When rolling, the wire is treated in short lengths, and when coated is brought to a high temperature which fuses the glass combining the glass and wire as one homogeneous glass-covered wire. A suitable metal for such treatment is an alloy of nickel and steel. The wires so coated may be used as leading-in wires for incandescent electric lamps or thermionic valves.
Patent GB-843134-A (GB)
Title: Improvements in and relating to pharmaceutical compositions
Inventor: GOTTFRIED SIEGFRIED
IPC: A61Q11/00
Filed: 1957-08-20
Abstract: A pharmaceutical agent, a polyalkylene such as polythene, a plasticizer such as lithium hydroxystearate, and an oily or fatty vehicle, such as liquid paraffin are admixed.  Examples of dental pastes and gauze impregnating compositions in which the pharmaceutical agent is glycyrrhetinic acid or a salt thereof, together with cinchocaine, amethocaine hydrochloride, neomycin sulphate and aspirin are given.  Specifications 798,655, 799,415, 843,132 and 843,133 are referred to.ALSO:A pharmaceutical composition for topical application, comprises a pharmaceutical agent, such as glycyrrhetinic acid and its derivatives, or xanthoglabrol and its derivatives, and as vehicle a polyalkylene such as polythene together with a plasticiser, such as lichium hydroxytearate, in a neutral oily or fatty base such as liquid paraffin, an analgesic such as cinchocaine, amethocaine hydrochloride, and aspirin, and an antibiotic, such as neomycin sulphate, may also be present in the composition.  Examples of p  dental pastes and compositions for impregnating gauze are given. Specifications 798,655, 799,415, 843,132 and 843,133 are referred to.
Patent GB-752530-A (GB)
Title: Electrically operated pulley-block
IPC: B66D3/24
Filed: 1954-09-10
Abstract: 752,530. Chain hoists. DEMAG ZUG GES. Sept. 10, 1954 [Sept. 24, 1953], No. 26341/54. Class 78 (5). A pulley block has the end of the unloaded chain part movable in a slide 1, and formed with a lengthened link pin 2, such that when said pin traverses the slide it operates control member 3 to work the limit switch of the driving motor. As shown, slide 1 acts as a chain storer, enlarged link pins 10 sliding along the slide, pins 10 being smaller than end pin 2.
Patent GB-1514517-A (GB)
Title: Processing coupler-containing silver halide photographic materials
IPC: G03C11/00
Filed: 1975-06-20
Abstract: 1514517 Processing colour silver halide  materials with hydrogen peroxide solution KONISHIROKU PHOTO INDUSTRY CO Ltd 20 June 1975 [20 June 1974] 26419/75 Heading G2C Several exposed photo-sensitive silver halide materials each containing silver halide and a coupler in an amount of at least 50% in excess of the stoichiometric amount for the silver in the silver halide, are processed by (1) developing the first material with a developer containing a paraphenylene diamine developing agent, (2) treating the material with an amplifying bath containing H 2 O 2  and (3) repeating (1) and (2) for the other materials, the amplifying bath containing, at least immediately after processing the first material and after processing subsequent materials, developing agent carried over from (1) in an amount not exceeding 2/1000 mole/litre. The concentration of the H 2 O 2  in the amplifying bath is preferably 0À1-40 wt. per cent. Images having improved maximum density and less fog are obtained even when prosessing has been effected after continuous running over a long period.
Patent GB-659038-A (GB)
Title: An improved rolling apparatus for the manufacture of brick-and-iron lathing
IPC: B28B3/12
Filed: 1949-10-14
Abstract: 659,038. Rolling mills for making brick and iron lathing. LENS, J. P. A. A., and BENTINCK, S. P., (trading as COMMANDITAIRE VENNOOTSCHAP ARO). Oct. 14, 1949, No. 26429. Convention date, Aug. 22. [Class 87 (ii)] [Also in Group XXIV] When a hard lump of material passes between the fixed and movable rollers 4, 6, the roller 6 moves upwardly about a pivot 7 against a spring 10. If the lump is large enough to fully compress the spring, a cap 13 breaks a breaking piece 15, and allows a contact 16 to engage a contact 17, closing an electric circuit to stop the rolling mill. The switching lever 23 is moved by an electromagnet 21; in the circuit. The lower end of the spring and one end of the bearing for the roller 6 are supported by an adjustable nut.
Patent GB-1451013-A (GB)
Title: Process for production of stainless steel
IPC: C21C5/28
Filed: 1974-06-17
Abstract: 1451013 Production of stainless steel in a converter ALLEGHENY LUDLUM INDUSTRIES Inc 17 June 1974 [18 June 1973] 26671/74 Heading C7D Stainless steel is produced in a converter by providing a charge that is at least partly liquid and suitable for producing a chromium containing stainless steel in an oxygen steel converter having a tuyere in its bottom section, providing a subatmospheric pressure in the converter (e.g. 100 m.m. Hg absolute), introducing oxygen through a lance on to or beneath the surface of the charge, introducing an inert gas (e.g. argon or nitrogen at 5-100 SCFM and 100 psi) or an endothermic gas (e.g. water vapour or CO 2 ) through the tuyere and recovering the stainless steel. A flow of CO 2 , air, N2 or argon may be maintained through the tuyere during changing of the converter which may be tilted to prevent blockage of the tuyere and natural gas may be admixed with the argon entering the melt after the oxygen blow to assist in deoxidation of the melt. Further refining steps involving reducing slags, refining slags and further alloy additions for final composition adjustment may be carried out prior to the tapping of the stainless steel melt obtained.
Patent GB-365051-A (GB)
Title: Improvements in or relating to punching machines
IPC: B21D28/32
Filed: 1930-09-06
Abstract: 365,051. Making road vehicles. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Uxley, W. S.; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) Sept. 6, 1930, No. 26696. Convention date, Sept. 14, 1929. [Classes 83 (ii) and 83 (iv).] Punching.-A device for punching a series of spaced holes in a metal stamping &c. comprises a work support on which a number of punch units are mounted at predetermined points and angular positions. Each punch unit comprises a block 10 on which is mounted a punch 22, co-operating with a die 19 and actuated from a handle 29 through a lever 25 and a toggle lever 28, a spring-pressed ball 34 engaging a recess in the lever 25 to retain the mechanism in the inoperative position. The block 10 of each unit receives bolts 46 by which it is attached to a wall 41, Fig. 6, of the support 37 on which the work 38 is clamped. Packing pieces are used to locate the units with respect to the work. The upper surface of the wall 41 is shaped to conform to the work, and limits downward movements of the handles 29.
Patent GB-879806-A (GB)
Title: Transparent polymeric styrene compositions
IPC: C08F257/00
Filed: 1960-08-02
Abstract: Graft polymers are obtained by polymerizing styrene at a temperature above 50 DEG C. in the presence of at least one peroxide derivative of a substantially linear amorphous, non-crystallizable homo- or co-polymer of an arylolefine having the formula: CH2=CH-(CH2)n-C6H5 in which n is an integer not higher than 6, e.g. allyl benzene and 5-phenyl-pentene-1.  Ethylene is specified as a co-monomer for use in preparing arylolefine copolymers.  The arylolefine polymer preferably constitutes 5%-20% by weight of the mixture of monomer and polymer.
Patent GB-405922-A (GB)
Title: Stair rods
IPC: A47G27/06
Filed: 1933-09-28
Abstract: 405,922. Stair rods. AINSLEY, H., Holmrook, Southwick Road, Blackheath, Staffordshire. Sept. 28, 1933, No. 26709. [Class 52 (v).] A stair rod of the type having at the rear cut-away parts 3 each bridged by a plate 5 having a longitudinal slot 6 to co-operate with a headed pin or screw fixed to the stairs, has the plate fixed over a portion only of the recess 3 the slot being open at the end adjacent the non- covered portion of the recess and provided with an enlarged hole 8 at the closed end into which the screw head enters to lock the rod in place when it has been slid longitudinally. The plate 5 is of angle section with the slot 6 cut in its apex. The holes 8 are countersunk internally.
Patent GB-1388295-A (GB)
Title: Pinch valves
IPC: F16K27/02
Filed: 1972-04-28
Abstract: 1388295 Valves ALVASUM (ASEPTIC) Ltd 9 April 1973 [28 April 1972] 26853/74 Divided out of 1388294 Heading F2V The description is similar to that of Specification 1,388,294, but the claims are directed to the hinged identical casing parts. In an additional manually operated embodiment, Fig. 2 (not shown), the flexible tube has a raised region, caused by an enlargement in the casing parts, to give good drainage of the valve when it is not carrying fluid.
Patent GB-811008-A (GB)
Title: Improved spring cushion assembly
IPC: A47C23/053
Filed: 1956-08-13
Abstract: 811,008. Spring assemblies. RYMLAND, M. J. Aug. 13, 1956 [July 9, 1956], No. 26900/58. Divided out of 811,007. Class 52(4) A pair of parallel border wires 26, 90 for the edges of an assembly of upholstery springs are located one above and the other below the arcuate edge portions of the springs and are connected thereto by welding or by clips 60, the wires 26 being tie wires as disclosed in Specification 811,007.
Patent GB-1491381-A (GB)
Title: Apparatus for the drying and single-phase firing of ceramic bodies
IPC: F27D99/00
Filed: 1975-06-25
Abstract: 1491381 Funnel kiln CERAMICA FILIPPO MARAZZI SpA 25 June 1975 [2 July 1974] 26958/75 Heading F4 A ceramic drying and firing plant comprises a drier 10, preheating and treatment kiln sections 22a-22e and a cooling section 44, heat sources 34, 36 spaced throughout the length of the sections 22a, 22e and exhaust outlet 30 at the charge end of the kiln and a rollerway conveyer extending through the drier, kiln and cooling zone, each roller being mechanically driven. The drier 10 has its own burner 12 and exhaust outlet 20. The outlets 24, 26 for the exhaust from the kiln are spaced above and below the conveyer, as are the burners, each of which comprises a central gas supply tube 96, Fig. 12, and two concentric air supply sleeves 106, 88 so that a small flame can be maintained to give low heat, and complete combustion can be obtained for a high heat output. The rollers 52, Fig. 7, extend through the kiln walls, one end resting on spaced rollers (Fig. 8) and the other carrying cogs 78 engaging chains 80, which operate the rollers of a part only of the kiln. The chains may be lowered to remove the drive to any section. The sections of the kiln are separated by vertical partitions extending to near the upper surface of the ware.
Patent GB-615969-A (GB)
Title: Improvements relating to rotary couplings for power transmission
IPC: F16D3/58
Filed: 1946-09-07
Abstract: 615,969. Universal joints. FENNER & CO., Ltd., J. H., HICKMAN, J. C., HAINSWORTH, S. B., and HALL, T. Sept. 7, 1946, No. 26964. Addition to 608,340. [Class 80 (ii)] The universal joint of the parent Specification is modified by the use of a floating coupler including a flanged portion which encloses with working clearance the flexible elements. As shown, the coupler is of the stepped washer type described in the parent Specification and has an axially extending flange 25, Fig. 1. In Figs. 2 and 3 (not shown) the stepped portions of the washer are omitted, leaving individual radial segments of, say, 65 degrees extent connected only by the flange 25, to which they may be brazed, welded or otherwise attached.
Patent GB-1163218-A (GB)
Title: Motor Gasoline Compositions
Inventor: THARBY RONALD DESMOND
IPC: C10L1/18
Filed: 1967-06-13
Abstract: 1,163,218. Increasing viscosity of gasoline. BRITISH PETROLEUM CO. Ltd. 23 Aug., 1968 [13 June, 1967], No. 27147/67. Heading C5G. A gasoline composition for variable choke carburetters comprises a base gasoline of initial B.Pt. <40‹ C., a 90% distilled point of #150‹ C. and a research octane rating (unleaded) #80, and 0À01-1% by weight of a polyolefin or polyalkylmethacrylate. The polyolefin may be poly-i.-butene, poly-4-methylpentene-1 or polymethylstyrene. The composition may also contain Pb(CH 3 ) 4  or Pb(C 2 H 5 ) 4  anti-knock agents, ethylene dibromide as scavenger, and tripropylene glycol anti-freeze.
Patent GB-431327-A (GB)
Title: Improvements in or relating to discharge devices such as cathode ray tubes
IPC: H01J29/52
Filed: 1933-10-03
Abstract: 431,327. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, CONDLIFFE, G. E., Thorncombe, Fulmer Road, Gerrards Cross, Buckinghamshire, SHOENBERG, I., 203, Willesden Lane, and TEDHAM, W. F., 267, Woolwich Road, Abbey Wood, both in London. Oct. 3, 1933, Nos. 27199/33 and 20960/34. [Class 39 (i)] In a cathode-ray tube arrangement of the hard type having a cathode, a first accelerating electrode, a decelerating electrode with an apertured diaphragm, and a second accelerating electrode so arranged that the ray passes through them to a screen and is focused by electrostatic or electromagnetic means, a potential equal or nearly equal to that of the cathode is applied to the decelerating electrode, and positive potentials to the accelerating electrodes, these potentials and the shape and disposition of the electrodes being such that increases of potential of the decelerating electrode in a negative sense produce increases of current to the first accelerating electrode. As shown, the first accelerator 7, the decelerator 8, and the second accelerator 9 are mounted with an apertured shield 6 for an indirectlyheated cathode 5 on a glass tube 4 extending from the foot. The decelerator 8 consists of a cylinder with an apertured disc mounted about half way along it, and the accelerators 7, 9 consist each of a cylinder with an apertured disc at one end. A second apertured disc 23 may be arranged inside the accelerator 9. An anode 15 overlaps the accelerator 9. Dimensions and values of the potentials are given. For example, the accelerator 7 may be at 200 volts positive, the decelerator 8 at 20 volts negative, the accelerator 9 at 1000 volts positive, and the anode 15 at 3600 volts positive with respect to the cathode ; or the accelerators may be at the same potential. Modulating potentials may be applied to the decelerator. The shield 6 may be omitted. The ray is focused to a spot on the screen by the electrodes 9, 15, or a magnetic electron lens may be used. In another arrangement three accelerators and two decelerators are provided so as to produce two deceleration regions ; a third deceleration region may be produced by two additional electrodes.
Patent GB-927260-A (GB)
Title: Process for the protection of materials subject to corrosion
IPC: C23C8/06
Filed: 1961-07-27
Abstract: A process for the protection of ferrous metal surfaces from the action of a sulphidic corrosive medium comprises converting a permeable iron sulphide initially formed into a protective layer of a crystallized or semi-crystallized iron sulphide impervious to the corrosive medium.  A permeable layer of kansite (Fe9S8) first formed may be converted to impermeable pyrrhotite (Fe7S8) and/or pyrite (FeS2) by heating the metal to a temperature above 130 DEG  C. in an inert atmosphere, or in an atmosphere of iron carbonyl alone or mixed with an inert gas, or in an atmosphere of sulphur vapour, or in the corrosive medium in the presence of a catalyst for the production of atomic sulphur from hydrogen sulphide, e.g. nickel carbonyl.  The process may be carried out under reduced pressure, e.g. less than 10-2 mm. Hg.