baber/WOPTO huggingface dataset:
Patent GB-880838-A (GB)
Title: Improvements in or relating to electrolytic cells
IPC: C25B9/19
Filed: 1959-06-04
Abstract: 880,838. Electrolytic cells. DIAMOND ALKALI CO. June 4, 1959 [June 6, 1958], No. 19165/59. Class 41. An electrolytic cell for electrolysing alkali metal chloride comprises a base 4 supporting inner and outer conductive, e.g. steel, walls 3, 2, forming a peripheral chamber 5 from which catholyte and hydrogen are withdrawn and an inner chamber containing anodes 10, e.g. of graphite or magnetite, vertically mounted on the base 4, a plurality of foraminous, tubular, metal cathodes 6 disposed between the anodes 10, Fig. 5 (which is a horizontal section) and extending horizontally across the cell at least between the walls 3, being fixed in holes 8 therein and providing communication between the interior of the cathodes 6 and the chamber 5, a liquid permeable diaphragm 26, e.g. of asbestos, completely separating the anodes 10 from adjacent cathodes 6. The cathodes, which may be steel wire cloth or seamed steel tubes, each extend substantially the height of the cell and form with the walls 3 anolyte chambers 22 which are open top and bottom but closed at each end by asbestos 26 which also passes over the top and bottom of the cathodes 6 which are thereby completely en. closed. The cathodes are supported by metal straps 25 and receive current by a bus-bar 13, the anodes 10 being supplied by connections 41, 42, base 4, copper grid 12 and a lead bonding layer 14. Brine is delivered to chambers 22 through pipes 36, 37, a chlorine outlet 38 being provided and the chamber 5 having outlets for hydrogen and caustic. Catholyte may additionally reach the chamber 5 via holes 9 in the wall 3 after traversing the diaphragm 26. U.S.A. Specification 1,862,244 is referred to.
Patent GB-694651-A (GB)
Title: Improvements in or relating to turbo-machines
Inventor: ROBINSON NORMAN ROBERT
IPC: F01D5/30
Filed: 1950-08-01
Abstract: 694,651. Making turbine &c. blades. ROLLS-ROYCE, Ltd. Oct. 31, 1951 (Aug. 1, 1950], No. 19183/50. Classes 83 (ii) and 83 (iv). [Also in Group XXVI] Brazing.-An aerofoil section blade of a turbo machine is brazed in a curved parallel sided slot in a supporting part having a curvature sub. stantially conforming to that of the camber line of the blade and having the walls spaced apart by a distance equal the maximum thickness of the blade. In an embodiment a slot 12 having walls 13, 14 in the form of cir. cular arcs spaced apart by a distance equal to the thickness 16 of the blade 10 is formed by an open-ended milling cutter in a disc 11. The camber line 15 of the blade conforms substantially to the slot curvature. The root end of the blade 10 is copper coated and after placing it in the slot 12 is tack welded to one end wall 11a or 11b of the disc 11. The assembly is heated in an oven to effect brazing. The bottom of the blade is preferably also brazed to the slot 12. To provide a greater brazing area the convex and/or concave surfaces of the blade 10 are slightly ground. A parallel sided root may be forged on the blade. The blade may be formed by cutting a length from a bar of uniform aerofoil section and then twisting it.
Patent GB-372614-A (GB)
Title: Improvements in and relating to carding machinery
IPC: D01G15/38
Filed: 1931-07-04
Abstract: 372,614. Carding-engines. SHAW, H. D., Roundwood Grange, Baildon, and BOWER, S., 298, Barkerend Road, Bradford, both in Yorkshire. July 4, 1931, No. 19316. [Class 120 (i).] To reverse the drive of a woollen or worsted carding-engine for grinding, a gear unit is interposed between two adjacent machines and is arranged to reverse the drive of one machine when driven from the other. The unit comprises a shaft S carrying gear-wheels S<1>, S<2> adapted to engage gear-wheels W, W<1> on the shafts of the fourth lickers B<2>, B3 a wheel G being interposed on one side to obtain the necessary reversal.
Patent GB-802576-A (GB)
Title: Improvements in or relating to apparatus for use in treating lengths of textile fabric
Inventor: COBURN ROBERT
IPC: D06B17/06
Filed: 1955-07-05
Abstract: Apparatus for treating textile fabrics in long length comprises a chamber 1 containing the treating fluid, e.g. steam, an endless conveyor (see Group XXX) comprising two channelshaped tracks 2, one on each side of the chamber 1 and having their channels facing, and a treating tank 11 through which the fabric 10 is passed by rollers 12, 13, 15, 16 and 17 to the <PICT:0802576/IV (c)/1> <PICT:0802576/IV (c)/2> conveyer, where it is arranged freely to fold over thin, flat, closely-spaced bars 6 extending between the tracks 2 and moving towards takeoff rollers 22, 23.  The bars 6 are interconnected by links 8 hinged to fold in alternate directions at points 9, and are driven around the track 2 by means of a crank 28 supported on a rod 29 which engages the trailing edges of the bars 6 and pushes them into a vertical position, thus hingeing the links 8 and causing the fabric passing between bars 6 to form loops.  The bars 6 are prevented from backward displacement by a pivoted catch 30. In a modification the upper run of the conveyor may be moved on endless belts, and the downward end run may pass through water or steam jets to clean the bars 6.  In another embodiment springloaded fingers are provided on an endless chain having vertical runs, the fingers engaging and grinding the fabric into loop formations.
Patent GB-979763-A (GB)
Title: Magnetic materials
Inventor: LAVELL HUGH HENRY
IPC: G11B5/702
Filed: 1961-05-29
Abstract: 979,763. Magnetic compositions. INDUSTRIAL COLOURS Ltd. May 28, 1962 [May 29, 1961], No. 19377/61. Heading H1H. A magnetic material suitable for a flaw detecting material or magnetic ink comprises a magnetic pigment, a colour modifier and a thermoplastic resinous binder, the colour modifier being a substance which in daylight and/or other radiation reflects and/or fluoresces in the visible spectrum and modifies the colour of the magnetic pigment. The resin may be melamine-, benzoguanamine-, or urea-sulphonamide formaldehyde resin, or may be an acrylic resin or vinyl resin or nylon. The magnetic pigment may be Ni, Co, A1 alloy, Fe, and iron oxides. Non-fluorescent dyes are phthalocyanines, acetoacetarylamide and toluidine dyes, and triphenyl methane dyes. Non-fluorescent pigments are metal sulphates, metal sulphides, metal oxides, e.g. titanium oxide, metal selenides, lithopone. Fluorescent dyes and pigments are Rhodamine dyes, acenaphthane dyes, " Tinopal " (Registered Trade Mark), " Blankophor " (Registered Trade Mark), " Leucophor " (Registered Trade Mark), xanthene, anthraquinone, naphthalimide and stilbene dye. In one method of preparation the pigment and modifier are added to the reaction mixture of the resin or the finished resin while still liquid; the resultant mixture is stirred, cooled, solidified, and pulverized. Alternatively the magnetic pigment is omitted in this process and added at the end. The magnetic pigment may comprise 2-65% by weight of the composition. For magnetic inks a liquid or pasty media may provide a vehicle for the composition, specified media are aliphatic hydrocarbons and water with polyvinyl alcohol as stabilizer.
Patent GB-614256-A (GB)
Title: Improvements in and relating to optical systems comprising a concave spherical mirror and a correcting element
IPC: G02B17/08
Filed: 1946-06-28
Abstract: 614,256. Optical systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 28, 1946, No. 19386. Convention date, May 30, 1942. Drawings to Specification. [Class 97 (i)] In a system comprising a concave spherical mirror with a correcting element, e.g. a Schmidt plate, located at its centre of curvature, the element has a mark at its centre or concentric or symmetrical with respect thereto, so that the correct location of the element may be checked by ensuring that the mark coincides with its image formed by the mirror. The mark may be V-shaped, circular, or comprise pairs of dots and may be of a different colour from the element. Where the element is moulded the mark may be formed by a recess or protuberance in the mould. The element may be of the type described in Specification 614,255.
Patent GB-530992-A (GB)
Title: An automatic variable speed transmission
IPC: F16D67/00
Filed: 1939-07-04
Abstract: 530,992. Variable-speed gearing. FUERY, G. T. (Duffield, W. A.). July 4, 1939, No. 19398. [Class 80 (ii)] Reverse and three forward speeds are afforded between driving and driven shafts 1, 4 through a fluid coupling of the Fottinger type, a centrifugally controlled friction clutch and planetary gearing. From the shaft 1, flywheel 10 casing 13, and fluid-coupling members 12, 22, movement is transmitted through the stub shaft 2 to the main shaft 3 carrying the sun pinion 31. The planet carrier is held by the brake-band 91. Movement is conveyed to the shaft 4 through the toothed wheels 84, 85, 41, and also through gear 83 to the pinion 53 and the casing 50 of the clutch. With increasing speed the masses 56 move radially outward, tilting the wedges 66 to engage the clutch-plates with each other. The plate-carrying sleeve 18 is keyed to flange 17 secured to the casing 13. The sleeve 5 and pinion 53 thus rotate at driving shaft speed, and through the gears 83, 84, 31, the coupling member 22 is rotated faster than the driving member 12. At this point the shaft 4 is in second speed. Increasing driving shaft speed actuating centrifugally on the fluid in the coupling brings the coupling members 12, 22 to the same speed producing a solid drive between the shafts 1, 4. For reverse drive the brake-band 91 is released and the band 93 engaged on the clutch casing 50. The planet carrier 8 being thus released rotates, and transmits a reversed drive to the shaft 4.
Patent GB-1457862-A (GB)
Title: Producing hot reducing gas
IPC: C01B3/34
Filed: 1975-05-09
Abstract: 1457862 Production of reducing gas CENTRE DE RECHERCHES METALLURGIQUESCENTRUM VOOR RESEARCH IN DE METALLURGIE 9 May 1975 [10 May 1974] 19599/75 Heading C5E A method of producing a hot reducing gas comprising CO and H 2  by reforming a hydrocarbon fuel with a supporter of combustion comprises the steps of (a) producing a high temperature gas (at a temperature of, for example, 2000‹ C.) by means of a plasma medium and (b) adding fluids comprising a supporter of combustion and/or a hydrocarbon fuel to the high temperature gas such that reforming reactions occur to produce the desired reducing gas at a temperature of, for example, 1000-1100‹ C. The high temperature gas may be a non-oxidising gas, such as nitrogen or a reducing gas obtained from a mixture of hydrocarbon fuel and supporter of combustion having a stoichiometric amount of oxygen. Alternatively the high temperature gas may be a reducing gas obtained by reaction of the hydrocarbon fuel with an excess of the supporter of combustion. In this case, the fluids added in the second step should contain the appropriate amount of the supporter of combustion to ensure that the product contains the desired quantities of CO, H 2  and if necessary only hydrocarbon fuel should be added in the second step. Suitable supporters of combustion include steam, CO 2 , oxygen, air, blast furnace gas, exhaust gases from direct reduction or combustion furnaces, or residual reducing gas including an excess of combined oxygen as CO 2 , H 2 O. The hydrocarbon fuel may be a liquid or gaseous hydrocarbon, or a gas such as coke furnace gas containing CO, H 2  and CH 4 .
Patent GB-589227-A (GB)
Title: Improvements in or relating to the spinning and twisting of threads
IPC: D01H1/02
Filed: 1939-07-05
Abstract: 589,227. Spinning. FRENKEL, I. July 5, 1939, No. 19621. Convention date, July 25, 1938. [Class 120 (ii)] In a spinning and twisting device comprising a member rotating co-axially with the bobbin and which guides the yarn passing from the delivery rollers, the yarn bears on the layers of yarn already wound before being wound on the bobbin and further bears frictionally on the surface of the rotating member over lengths comprised between spaced guides located on the rotating member before bearing on the layers already wound and before being wound on the bobbin respectively. As shown in Figs. 1 and 2, the yarn 1a from the supply engages a perforation 3 in the cup flyer 2 and then passes around the exterior of the cup to a perforation 4 from which it passes into contact with the bobbin 5 or yarn wound thereon to a perforation 6 in the cup; the yarn then passes round part of the exterior of the cup to a perforation 7 from which it passes to and is wound on the bobbin 5; bobbin 5 may be driven and the cup flyer braked by a band 2d, the friction of the yarn contacting with the bobbin assisting in the driving of the cup or the cup may be driven and the bobbin braked, if desired, by means additional to the variable braking action of the yarn. The locations of the perforations 3, 4, 6 and 7 and the planes in which they are disposed may be varied and a number of alternative apertures 3a, &c. may be provided; for reverse spinning, the cup may be turned upside down or a cup with the apertures oppositely arranged with .respect to the axes x, y may be used. When a two-legged flyer is used, each leg has a pair of eyes and the yarn from the supply passes through the eyes in one leg into contact with the bobbin or the yarn wound thereon, thence to the two eyes in the other leg and finally to the bobbin to become wound theron. In the arrangement shown in Fig. 10, a number of travellers 3<1>, through one of which the yarn from the supply passes and which are fixed to a rotary ring or are movable on a fixed ring, are fixed to an annulus 50 and the yarn from the traveller 3<1>, may be wound around the annulus before passing to a traveller 4<1> from which it passes into contact with 'the bobbin 5 or the yarn wound thereon, through travellers 6<1>, 7<1> and on to the bobbin to be wound thereon; the bobbin may be driven or the ring may be driven and the bobbin braked. The braking may be effected by a cord carrying a weight and passing over rocking or sliding members or by other mechanical, electrical or like means.
Patent GB-637120-A (GB)
Title: Improvements in luminescent zinc fluoride and method of preparing same
IPC: C09K11/08
Filed: 1947-07-22
Abstract: 637,120. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS, Inc. July 22, 1947, No. 19675. Convention date, June 12, 1946. [Class 39 (i)] In the manufacture of a luminescent zinc fluoride screen such as for a cathode-ray tube, the growth of the zinc fluoride crystals is inhibited during the activating stage by the addition of small amounts of silicic acid, tin oxide, magnesium fluoride or aluminium fluoride. The zinc fluoride crystals are then settled on to a support to form the screen, from a non- aqueous medium such as acetone or alcohol. Zinc fluoride is prepared from the reaction of a solution of hydrofluoric acid with a water suspension of a basic zinc carbonate. The purity of the reactant is such as to control the limits of permitted impurities such as silver, lead, nickel and iron, for example 0.0005 per cent iron. Manganese which in the subsequent firing step is the activator, may also be added as a carbonate in the water suspension, and precipitated as manganese fluoride with the zinc fluoride, or manganese fluoride may be added by milling it into the dried zinc fluoride precipitate. Preferred proportions are by weight, 1.5 per cent manganese fluoride, 1-5 per cent crystal growth inhibiting agent, for example 4 per cent silicic acid, and the rest zinc fluoride. After activation by firing, zinc fluoride crystals, majority from 2 to 6 microns in size, are produced. They are then suspended in acetone and rod-milled. The milled crystalline powder is then passed through a 325 mesh. Specification 579,749 is referred to.
Patent GB-1472057-A (GB)
Title: Electrodes for glass melting furnaces
IPC: H05B3/03
Filed: 1973-04-25
Abstract: 1472057 Electrode furnace for glass ELEMELT Ltd 25 April 1974 [25 April 1973] 19730/73 Heading H5H A glass furnace electrode is protected from oxidation where it passes through the furnace tank wall by a protective sleeve assembly comprising a metal layer 18 and a layer 34 of viscous sealing material. The electrode 20 of molybdenum is covered by a sleeve 18 of nickel or nickel alloy, which may be in turn covered by a further sleeve 22 of alumina-silica based paper, and the layer 34 of viscous sealing material is of alumina-silica based cement. A second layer 35 of the viscous sealing material may be present. Any further space between the electrode and the furnace tank wall is filled with glass 36, 37 which flows in from the tank. At the outer part of the tank wall this glass is kept solidified by cooling means carried by the electrode, Fig. 1, not shown, but when it is required to feed the electrode into the furnace these cooling means can be turned off to allow the glass to flow and allow relative movement between the electrode and the tank. As an alternative to the glass providing the flow capability for moving the electrode sodium silicate may be provided.
Patent GB-571317-A (GB)
Title: Improvements in or relating to the production of sintered alloys
IPC: B22F3/10
Filed: 1943-11-26
Abstract: 571,317. Obtaining coherent masses from powdered metals ; alloys. MILLER, G. L., and MUREX, Ltd. Nov. 26, 1943, No. 19793. [Class 82 (i)] In the production of sintered metal products a pressed mixture of metal powders containing at least one readily oxidizable metal or alloy is sintered in vacuo or in a non-oxidizing atmosphere, the pressing is protected from oxidation by the presence in the heating zone of a porous, readily oxidizable material. This may comprise silicon, aluminium, titanium or alloys thereof or lower oxides of such metals, e.g. titanium monoxide. This enables the use of moderate vacuum and an atmosphere of commercially available reducing gas, e.g. electrolytic hydrogen, but this should be dried. In an example a powder pressing containing iron, aluminium, nickel, cobalt and copper was placed in a graphite boat, covered with powdered alumina and then with finely-powdered alloy of titanium and aluminium, or the covering powders could be mixed, and the whole heated. to 1300‹ C. in commercially dry hydrogen for four hours. There was no increase in oxygen content but, when the protective powder was omitted, oxygen increased 4.5 per cent. The use of titanium aluminium alloy is valuable as it protects from nitrogen, carbon dioxide, carbon monoxide, if present in small amounts, as well as against oxygen and water.
Patent GB-742922-A (GB)
Title: Improvements in or relating to electrically insulating liquid for electrical high-tension devices
IPC: H01B3/20
Filed: 1951-08-22
Abstract: A mineral oil composition used as insulating liquid for high-tension electric devices comprises a saturated mineral oil to which a small quantity, i.e. 0.2 per cent to 3 per cent of a hydrocarbon or of a hydrocarbon halide containing one or more double bonds or aromatic groups has been added, in which the added hydrocarbon or hydrocarbon halide has a vapour pressure equal to or lower than the vapour pressure of the saturated mineral oil. The hydrocarbon may be polybutadiene, an oily liquid mixed polymer of styrene and isobutylene, a styrene polymer of low degree of polymerization especially di- or tri-styrene, and the hydrocarbon halide may be chlorinated or fluorinated diphenyl.
Patent GB-1383463-A (GB)
Title: Method of depositing coagula from bituminous emulsion-rubber latex compositions
IPC: C08L95/00
Filed: 1973-04-26
Abstract: 1383463 Coating; coating apparatus; bitumen emulsions TREMCO MFG CO 26 April 1973 [10 May 1972] 19947/73 Headings B2E B2L and B1V A coagulum is deposited on a surface from a composition comprising a major proportion of a bituminous emulsion and a minor proportion of a natural or synthetic rubber latex or a mixture of such latices by generating an atomized stream of the composition by liquid pressure and directing the stream along a first path towards the surface to be coated, generating an atomized stream of coagulant for the emulsion and the latex by liquid pressure and directing the stream along a second path towards the surface which intersects with the first path, and maintaining the point of intersection of the paths a sufficient distance from the surface to permit thorough coming- ling of the composition and the coagulant in advance of contact of the atomized streams with the surface. A minor amount of polyvinyl alcohol may be incorporated in the bituminous emulsion. Bituminous materials mentioned are coal-derived tars and pitches, shale oil residues, straight run materials, solvent cutbacks and preferably asphaltic materials. Suitable emulsifying agents are alkali metal soaps, resin soaps, rosin soaps, casein, proteins. Stabilizing agents such as caseinate, alginate, or ammonium hydroxide may be added. The rubber latex may be butadienestyrene copolymers, polychloroprenes, butadieneacrylonitrile copolymers and organic polysulphides. The coagulant may be calcium chloride, sodium chloride, hydrochloric acid, aluminium sulphate. Suitable compositions of sprayable consistency contain 98-65 weight per cent of a bituminous emulsion containing 65-75 weight per cent solids, and from 2-35 weight per cent rubber latex containing 55-65 weight per cent solids. As shown in the drawing spray apparatus 10 comprises a first pipe manifold 12 which splits into feed tubes 14, 16 terminating in spray nozzles 18, 20 and a second pipe manifold 22 splits into feed tubes 24, 26 terminating respectively in spray nozzles 28, 30. Pipe manifolds 12, 22 are provided respectively with flow control valves 34, 36. The spray nozzles 18, 28 and 20, 30 are disposed such that the atomized streams of material extend along converging paths and intersect each other at a distance x from the point of generation of the streams. Preferably the bituminous emulsion-rubber latex composition is fed through pipe manifold 22, feed tubes 24, 26 and spray nozzles 28, 30 while the coagulant is fed through pipe manifold 12, feed tubes 14, 16 and spray nozzles 18, 20. Preferably the distance between the points of generation of the streams and the point of intersection of the first and second paths x is less than the distance between the point of intersection and the surface to be coated y. The method is used in roofing applications, sound insulating, vibration dampening and vehicle undercoating.
Patent GB-183821-A (GB)
Title: Improved crown cork remover and resealer
IPC: B65D51/24
Filed: 1922-07-20
Abstract: 183,821. Bracey, H. E. P. July 27, 1921, [Convention date]. ' Crown corks,' applying; prising-tools for removing capsules.-A device for resealing crown corks comprises an internally-tapered shallow cup or annulus secured to a handle, knob, or haft. To a knob 15, Fig. 2, is secured a cup 14, the interior of which is tapered to afford clearance for the head of crown cork and is so formed that the largest diameter engages the flutings 18 on the crown cork. The resealer may be combined with means for removing the crown cork. The crown cork 18, Fig. 5, is gripped between the handle 15 and the edge of an inverted metal cup 13. Alternatively, the cup 14, Fig. 7, may have an extension 23 provided with means such as the projection 24 for engaging the edge of the crown cork.
Patent GB-434301-A (GB)
Title: Stereotype plates
IPC: B41D3/00
Filed: 1934-07-07
Abstract: Stereotype plates are die-cast from the alloy described in Specification 434,047, instead of the usual lead-antimony or lead-antimony-tin alloy.