baber/WOPTO huggingface dataset:
Patent GB-422369-A (GB)
Title: Improvements in or relating to the separation of arsenic and antimony from complex sulphur compounds of copper
IPC: C22B15/00
Filed: 1934-02-21
Abstract: Arsenic and antimony are obtained as oxides mixed with some sulphides in the smelting of ores and the like containing complex copper compounds by mixing the ores &c., with oxygen compounds of iron, e.g. roasted pyrites, hammer scale, &c., with or without the addition of fluxes such as slags rich in copper.ALSO:In order to remove arsenic and antimony in the smelting of ores and the like containing complex copper compounds, the ores &c. are mixed with oxygen compounds of iron, e.g. roasted pyrites, hammer scale, &c., whereby a copper matte is produced containing iron sulphide, and the arsenic and antimony are liberated as oxides mixed with some sulphides.  Fluxes such as slags rich in copper may be added to the charge to be smelted. Precious metals present in the ore are obtained from the subsequent electrolytic or other sludges.
Patent GB-955842-A (GB)
Title: Clay grease manufacturing process
IPC: C10M169/00
Filed: 1961-02-16
Abstract: A process for the preparation of clay gelled lubricating greases comprises adding to a preformed clay gelled grease which has incorporated in it a cationic surface-active agent and has not more than 5% by weight of water, 0.25 to 1% by weight based on the grease of oil-soluble amino amides formed by reaction of 0.3 to 0.6 equivalents of a mixture of saturated fatty acids having different carbon atom contents chosen from saturated fatty acids having 10 to 14 carbon atoms per molecule with one equivalent of a mixture of polyethylene polyamines (as defined), 20 to 80% by weight of this latter mixture comprising either or both polyethylene polyamines having 2 or 3 nitrogen atoms, the remainder thereof being polyethylene polyamines having an average molecular weight within the range of 200 to 500.  Part of the fatty acids may be replaced by acids having from 14 to 22 carbon atoms per molecule, which may be unsaturated.  Examples of these latter acids are linoleic, oleic or linolenic acid.  Polyethylene polyamines are defined as including ethylene diamine and the mixture of polyethylene polyamines is preferably that obtained as a bottom product in the process for the preparation of ethylene diamine, by reacting ethylene dichloride with ammonia.  The grease is preferably prepared by dispersing clay in water, adding to the dispersion a cationic surface-active agent and the lubricating oil, and dehydrating the mixture.  The preferred type of surface-active agent comprises the same amino amides as are added to the greases according to the invention, but other amino amides may be used.  The base oil may be a mineral oil, a silicone, a diester, a polyether, or a phosphate. The composition may also include corrosion inhibiters such as sodium nitrite, dicyclohexyl ammonium nitrite, diisopropylammonium nitrite and mixtures thereof; sebacic, adipic, azelaic, pimelic or suberic acids; and oxidation inhibitors such as diphenylamine, di-(a -naphthyl)amine, di - (b  - naphthyl)amine, phenyl - a  - naphthylamine, phenyl - b  - naphthylamine, bis(ethylphenyl)amine, bis(tert-butylphenyl)amine, a -naphthyl)(b -naphthyl)amine, bis(dimethylphenyl)amine, bis(diethylphenyl)amine or phenyl-beta(butylnaphthyl)amine.  A small amount of phosphoric acid may also be included during the mixing process. Specification 874,336 is referred to.
Patent GB-797492-A (GB)
Title: Improvements in and relating to heat exchangers
IPC: F28D7/02
Filed: 1957-02-20
Abstract: 797,492. Tubular heat exchangers. HUET, A. Feb. 20, 1957 [Feb. 21, 1956]. No. 5807/57. Class 64(3) A heat exchanger comprises a coiled tube b alternate turns, e.g. 1, 3, 5 of which are provided with longitudinal fins. The fins may extend from one side only of each turn of the coil with the fins on adjacent finned turns of the coil extending either in the same direction or in opposite directions. Alternately fins may extend from both sides of each finned turn of the coil, such fins d1, d2 in the form shown being so arranged as to deflect liquid flowing over them towards unfinned portions of the coil. A plain tube g may extend through the finned tube.
Patent GB-700559-A (GB)
Title: Improvements in or relating to radiation burners
IPC: C04B38/06
Filed: 1951-03-09
Abstract: The reduction of heat conductivity in a burner plate in order to minimize back firing is attained by providing cavities therein, either by partial sintering of the refractory forming the plate or by merely drying the refractory, or by the addition of a gas producing substance, or by burning out combustible matter. Alternatively, heat restraining materials, e.g. kieselguhr or asbestos powder, may be added to the raw refractory, or the radiation from the plate can be increased by adding the oxides of iron, manganese, cobalt or chromium.  Zirconia and ceria may also be present.  Dry refractory material is rendered plastic by admixture with oil and water and pressed to the desired shape. Specified refractories are clay and metal silicates.
Patent GB-675497-A (GB)
Title: Improvements in and relating to automatic locking devices for the covers of centrifugal and like machines
IPC: D06F49/00
Filed: 1950-03-08
Abstract: 675,497. Machinery safety devices. BROWN, W. H., and RUSSELL, W. L. Jan. 31, 1951 [March 8, 1950], No. 5831/50. Class 80 (iv). The cover 3 of a centrifugal or like machine having a rotary or oscillatory element or cage 32 within its casing 8 is adapted to be locked by a locking device 1 secured to the cover and passing through an aperture 7 in the wall of the casing. A spring- loaded transverse latch 9 engages beneath the edge of the aperture 7 and is adapted to be released by depression of a hollow plunger 12 by an operators' thumb and the cover lifted by means of a handgrip 11. The plunger 12 operates the latch 9 by means of a wedge member 25 which engages between a rod 17 and the rear of an aperture 24 in the latch. The rod 17 is spring-pressed by the plunger 12 and carries at its lower end a pivoted link 29 which is adapted to engage the top surface of the cage or element 32 so that if the cage 32 is stationary the link remains in alignment with the rod 17 and stops the latter moving downwards. If the cage is moving, the link 29 is collapsed and the rod 17 is moved downwards so that a projection 26 thereon moves into the aperture 24 of the latch 9 and prevents the wedge 25 of the plunger 12 releasing this latch.
Patent GB-728216-A (GB)
Title: Improvements in yarn carriers for gripper axminster carpet looms
Inventor: RENNIE JOHN ALAN
IPC: D03D39/08
Filed: 1951-03-10
Abstract: 728,216. Pile fabric looms. TEMPLETON & CO., Ltd., J. Feb. 25, 1952 [March 10, 1951], No. 5848/51. Class 142(2). In a gripper Axminster loom, the cut yarn ends extending from the supply are prevented from unwinding and from drawing back away from the grippers by two blade springs 10,11, the spring 10 biting into the yarn and the spring 11 preventing untwisting of the cut end. The springs are bent from a single piece of wire, which may be a beryllium-copper alloy, and have a portion 12 engaging the front edge of a block 6 on the yarn carrier. A spring clip 17, having a portion 19 forming a stop for the blade 10, is sprung into position between two of the blocks 6 and retains the members 10, 11.
Patent GB-329614-A (GB)
Title: Improvements in aeroplane fuselage construction
IPC: B64C1/06
Filed: 1929-05-01
Abstract: 329,614. Burnelli, V., J. Feb. 4, 1929, [Convention date]. Divided on 329,489. Fuselages; cars.-An aeroplane fuselage has a bulkhead 10 opposite the rear spars of the wings, which has a central member 10<a>, this member and the frame having strengthening ribs 33, 33<a> which merge into a structure 34 forming couches for passengers. The webs are shaped to provide clearance spaces 35. 36 and are strengthened by flanges 33<b>. Specification 329,489 is referred to.
Patent GB-1167464-A (GB)
Title: Sealed Electric Cells
IPC: H01M6/06
Filed: 1968-02-07
Abstract: 1,167,464. Sealed electric cells. SOC. LES PILES WONDER. 7 Feb., 1968 [17 Feb., 1967; 2 Feb., 1968], No. 6089/68. Heading H1B. A sealed electric cell, Fig. 2, encased between two half-shells, 4 and 5, crimped together, which form the cell terminals, is characterized by a removable insulating cover, 8, which temporarily protects one of the half-shell terminals, the edge, 8, of the cover extending into the crimping where it forms a seal between the two halves and the other half-shell is crimped inwards over it. The cover may be of polythene and have a central hole 8 3 . It may be removed by cutting ties 8 4 . The cell may comprise a depolarizer mass, 1, of MnO 2 , and a zinc anode 2, separated by electrolyte 3. The lower halfshell, 5, may be of nickel plate iron or stainless steel and the shells may be separated by insulator 6. Fig. 3 shows a cylindrical cell embodying the invention.
Patent GB-207443-A (GB)
Title: Improved pneumatic lint-clearer device for warping machines, looms and other machines
IPC: D03J3/00
Filed: 1923-03-03
Abstract: 207,443. Kenney, F. B., and Sidebottom, J. W. March 3, 1923. Mounting.-A pneumatic device for clearing lint from looms, warping-machines and like apparatus having a series of yarns or thread's travelling side by side, comprises a fan-blower which oscillates in the direction of the length of the yarns causing the air current to sweep along them. The plane of oscillation may be adjusted angularly, and the fan may be moved bodily or oscillated. across the threads, covering the whole width. As shown in Fig. 3, an electric fan 24 is pivotally supported between the arms of a yoke 22 clamped in an angularly adjustable manner to a pin 21 projecting from a collar 20 which is traversed along a sleeve 17 by a double-threaded screw driven from the slow motion driving mechanism of the warping-machine, over which it extends at right angles to the yarn or threads. The blower is oscillated to cause the air blast to sweep along the threads by a shaft 26 driven from the main fan shaft and carrying a disc 27 on which a link 29 is pivoted at one end, 'ts other being fixed to the yoke. In the modification shown in Fig. 6, the fan 119 swings in bearings in a yoke 121 across the yarns &c., while the yoke and fan are oscillated bodily along the length of the yarns by supporting the yoke by a collar on a shaft 110 rocked by an arm 128 through a rod 130 and a lever 311 pivoted to the machine frame and having a stud engaging a groove 341 in a wheel driven from a shaft 381 of the machine.
Patent GB-846108-A (GB)
Title: Improvements in or relating to radiation detectors
Inventor: MCGEE JAMES DWYER
IPC: H01J29/02
Filed: 1956-02-29
Abstract: 846,108. Electron multipliers; cathode materials ; luminescent materials. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 19, 1957 [Feb. 29, 1956], No. 6271/56. Class 39(1). A radiation, e.g. X- or gamma-ray, detector comprises a layer 6, e.g. of zinc sulphide or sodium iodide, emitting light under the incident radiation, a layer 9, e.g. an antimony-caesium photo-cathode, emitting electrons under the light from the layer 6, and a layer 5, e.g. of zinc sulphide, emitting light under incident electrons, there being interposed between the layers 9 and 5 an electron multiplying electrode structure comprising a plurality of Venetianblind type grid electrodes 4 maintained at progressively positive potentials, each electrode comprising parallel passages extending from the front face to the rear face thereof and having a grid 3 arranged between successive grid electrodes, the passage openings of consecutive grid electrodes being aligned to provide a series of electron-multiplying channels. Each grid electrode 4 is made by assembling and soldering together columns and rows of small rectangular cross-section metal tubes of nickel, stainless steel or copper which are coated internally with antimony-caesium. The resultant multi-channelled block is then sawn into sections at 45 degrees to the longitudinal axis. The grid electrodes 4 are so arranged as to provide zig-zag passages of square cross-section with a right angle bend at every electrode interface. A deep grid 7 of cast lead having a number of parallel passages 11 is positioned in front of the layer 6. The whole structure is mounted in an evacuated glass envelope 10 on the inner wall of which the layer 5 can be deposited.
Patent GB-898615-A (GB)
Title: Corrosion resistant gate valve
IPC: F16K3/28
Filed: 1959-02-24
Abstract: 898,615. Valves. WILLIAMS, J. L., and KUM, S. L. Feb. 24, 1959, No. 6390/59. Class 135. A rising stem bonnetless gate valve comprises a built-up valve body 11, Fig. 2, including keyholedshaped plates 33, 35, and U-shaped spacer plate 37 therebetween of plastic material adhesively connected together and bolted between metal flange plates 31, 32. A plastic material gate blade 13 moves between ring inserts 43, 45 adhesively connected to the plates 33, 35, 37 to open and close a flow passage 12 through the valve. The upper ends of the plates 33, 35, 37 are externally recessed and project beyond the plates 31, 32 to be enclosed in a metal reinforcing band 63. Packing pieces 75 surrounding the blade 13 and housed in a rectangular-shaped flange 73 of a packing-gland 71 are pressed by nuts 83 and stud bolts 77 into sealing engagement with the blade 13 and end faces of the plates 33, 35, 37 and reinforcing band 63. The reinforcing band 63 projects slightly beyond the plates 33, 35, 37 to take the initial pressure and protect the plates. The plastic parts are preferably made of polyvinylchloride. In a modification, the recessed upper ends of the plates 33, 35, 37 are formed with inwardly sloping bevelled edges 101, Fig. 4, projecting beyond the reinforcing band 63a to provide a more effective but less strong seal.
Patent GB-675131-A (GB)
Title: Improved process for manufacturing porous carbon electrodes
IPC: H01M12/06
Filed: 1950-03-14
Abstract: In the manufacture of porous carbon electrodes for oxygen depolarization in galvanic cells by impregnating a carbon body with heavy metal compounds, dilute solutions of heat-decomposable heavy metal salts capable of effecting partial oxidation of carbon are used for the impregnation and the impregnated bodies are heated to decompose the salts, thereby partially oxidizing the carbon, to form metals or metal compounds in amounts of less than 5 per cent, which metals or metal compounds catalytically accelerate the electrochemical reaction of the depolarizing oxygen.  Impregnating solutions should contain salts of at least two, preferably five or more metals, e.g. iron cobalt, nickel, manganese, chromium, copper, silver, gold, platinum, vanadium, thorium, or rare earths.  Suitable salts are nitrites, nitrates, chromates, chlorates, oxalates, acetates, or formates, or mixtures thereof.  The impregnating solutions may also contain heat-decomposable salts of the alkaline earth metals magnesium, calcium strontium, barium, and beryllium, or of aluminium or mixtures thereof.  Impregnation may be effected by suction or pressure.  The carbon bodies may be treated, before impregnation, with agents which attack carbon, e.g. concentrated hydrochloric, and/or nitric acids with or without hydrofluoric acid, and dried. The finished electrodes may be given a water-repellent coating, e.g. of paraffin.
Patent GB-115469-A (GB)
Title: Improvements in the Manufacture of Saws.
Inventor: DENLEY WILLIAM HENRY
IPC: B23D63/00
Filed: 1917-05-07
Abstract: 115,469. Denley, W. H. May 7, 1917. Milling-machines.-A machine similar to that described in Specification 113,977 is employed to cut the teeth of saws. One or more gangs of saw blanks 3 are secured by set-screws to a slide 1 which is advanced intermittently, the space of one tooth, by a screw 20, ratchet gear 21, and a cam on the shaft 28. The cutters 4 on spindles 7 which are resiliently mounted in bridge-members 6, are driven by separate belts or otherwise. The members 6 are carried resiliently by levers 9 one of each pair being oscillated by a cam 11 and spring 12. The members 6 may be guided by formers 26.
Patent GB-953581-A (GB)
Title: Improvements in or relating to skylights
Inventor: KUBALL CARL-HEINZ
IPC: E04D13/03
Filed: 1961-02-22
Abstract: 953,581. Laminates. C-H. KUBALL, [trading as GEB. KUBALL]. Feb. 22, 1961, No. 6512/61. Drawings to Specification. Heading B5N. [Also in Divisions E1 and E2] A spherically or cylindrically curved window unit for a skylight (see Divisions E1 and E2) comprises compound safety glass, at least the outer layer of which is of silica glass.
Patent GB-1125813-A (GB)
Title: Electrical connectors
Inventor: PICKEN NIGEL
IPC: H01R13/213
Filed: 1966-02-15
Abstract: 1,125,813. Securing cables to end pieces; plug and socket connectors. BRITISH OXYGEN CO. Ltd. 13 Feb., 1967 [15 Feb., 1966], No. 6531/66. Heading H2E. An electrical connector comprises a body 1, Fig. 1, having a bore 3 containing a U-shaped insert, the limbs of which have parallel and opposite walls 11 defining a channel 12 in which a cable end is located by a plate 15 and grubscrews 16. The body 1 is generally made of a blank of inductive material which is subsequently milled or hobbed to form the bore 3 but may also be manufactured using precision bore tubing, in which case a cup-shaped member of sheet metal is press-fitted into the bore of the tubing to provide a seat for the member 4. As shown, a resilient socket member 2 is formed integral with the body 1 and is provided with a plurality of grooves 20 and a circumferential recess 21, the latter containing a circlip (30, Fig. 3, not shown) comprising a nose portion (34) extending through one of the slots 20 into the bore of the socket, arms which engage the recess and kinks (33, Fig. 3, not shown) on the ends of the arms engaging slots 20 to hold the circlip in position. In the corresponding plug member (Fig. 4, not shown) a conductive member (7) formed integral with the body 1 is provided near its end with a reduced diameter portion and at its end with another portion of larger diameter than the last mentioned portion, this end portion being formed with a flat part of D-shaped cross-section. In coupling the plug and socket, the flat of the end portion of the plug is aligned with the nose on the circlip and when the end portion of the plug has passed the nose, the plug is turned through half a revolution, such that the nose on the circlip engages the reduced diameter portion of the plug.
Patent GB-471676-A (GB)
Title: Improvements in or relating to processes for the preparation of light-sensitive emulsions
Filed: 1936-03-04
Abstract: The process of increasing the sensitivity of an emulsion by subjecting it at any stage during its manufacture to oscillations, for example electric or electromagnetic oscillations, is modified by artificially cooling the emulsion during the application of the oscillations so that the treatment is carried out at a constant reduced temperature.  The high frequency oscillations used in long and short wave diathermy, or short broadcasting waves, may be employed.  Emulsions with a higher ration of halide to gelatine may thereby be produced without coarseness of grain or tendency to fog. To increase the effect, there may be added to the emulsion small amounts of substances which have no chemical action on it, but which increase the activity of the oscillations, such as colloidal silver, fine glass beads, or glass dust.  In an example, a silver bromide emulsion of stated composition, which would normally be prepared at 40 DEG  C., is treated with electrical oscillations of 100-metre wave length, and cooled with water so that emulsifying, digestion, and redigestion take place at 38 DEG  C. The resulting emulsion is compared in the Specification with an emulsion prepared in normal manner, with and without application of oscillations without simultaneous cooling.  Specification 417,501 is referred to.
Patent GB-329720-A (GB)
Title: Improvements in railway rolling stock underframe structures
IPC: B61D5/06
Filed: 1929-03-01
Abstract: 329,720. Brookes, N. E., (Commonwealth Steel Co.). March 1, 1920. Underframing of bodies.-In a locomotive tender or other railway tank wagon the underframe, which is preferably formed as a one-piece casting, constitutes an integral part of the tank structure. In the construction shown, the underframe. of a locomotive tender comprises two centre sills 1 and side sills 2, Fig. 3, connected by a horizontal web 3 forming the tank bottom, end sills 4, 5, Fig 1, bolsters 6 and transoms 7, the side and end sills having flanges 9 to which the side walls 10 of the tank structure are welded. A fuel compartment is provided having side walls 13 welded at their lower edges to the bottom 3 which may be reinforced by vertical ribs 26. Each end sill 4, 5 includes an inner transverse wall 30, and the intervening spaces at the centre of the wagon accommodate draw-bars 31 and couplings 31A, while the stems 32 of the buffers pass through the end sills 4, 5 into recesses 35 of the transverse walls 30.
Patent GB-1356208-A (GB)
Title: Monowheel plastic lens edger
IPC: B24B9/14
Filed: 1972-02-14
Abstract: 1356208 Edging lens; milling edges; gauging RAPHAELS Ltd 9 Feb 1973 [14 Feb 1972] 6813/72 Headings B3D B3K and B3B A process for forming an edge on a lens 30 made of transparent plastics material, such as allyl di-glycol carbonate or polymethyl methacrylate, comprises shaping the lens to the desired peripheral profile and also forming a V-section edge formation thereon by use of a grooved milling or grinding wheel 11 in a single operation, the relative axial positions of the lens and the wheel being determined by an adjustable stop 41 with which a surface of the lens is held in contact. In apparatus for carrying out the process, the wheel 11 may be a grinding wheel having diamond impregnated metal or a milling wheel having steel or tungsten alloy teeth and operates at 3000 to 5000 r.p.m. The wheel is mounted in bearings 12 on a base-plate 10 having a lower bearing for a pivot shaft 15 in which is mounted a carrier assembly 18. An inner part 19 of the assembly consists of a motor 21 carried by an arm 22 and driving through gearing 24 a cross shaft 25. An outer part 20 of the assembly consists of an arm 27 pivotable about bosses 26 on the cross-shaft 25 and having carrier shafts 28, 29 between which the lens is held, the shafts 28, 29 being driven by belts or chains from the cross shaft 25. The shaft 28 also carries a cam 33 having the desired profile of the lens and engaging an anvil 34 fixed to the base 10. The assembly 18 is free to pivot about the axis of the pivot shaft 15 and a spring acts on the assembly to urge a surface of the lens into engagement with the stop 41 which is adjustable by a screw 44.
Patent GB-949987-A (GB)
Title: Improvements in or relating to satellite carriers
IPC: B62M11/14
Filed: 1962-02-21
Abstract: 949,987. Variable-speed gearing; toothed gearing. FITCHELL & SACHS A.G. Feb. 21, 1962 [Feb. 24, 1961], No. 6817/62. Headings F2D and F2Q. A planet carrier for planetary gearing in cycle and motor cycle multi-speed gear hubs comprises planet pinions 40 mounted on bearing studs 32 supported between an annular flange member 16 and an end plate 12 which are spaced and riveted together by a number of spacers 18 and pins 20, formed integrally on the flange 16, the bearing studs 32 each having a reduced diameter shank 34, engaging in the plate 12, forming an abutment at one end which together with a retainer sleeve 36, secured by a circlip 38 on a hub extension 14 of the flange 16, prevent axial displacement of the bearing studs. A screw thread may be provided on the hub 14 for operating a back-pedalling brake and the plate 12 has inner teeth 42, or dogs (not shown), for engagement with a toothed clutch member (not shown). The hub 14 and flange 16 together with the spacers 18 and rivet pins 20 are cold-forged, as one member 10, and have the end plate 12 located and riveted thereto by the pins 20. Stud holes 28, 30, in the flanges 16, 12 are concentrically bored and the assembly hardened after which the stud holes are finish ground and the bearing studs together with the planet pinions &c. are fitted.