baber/WOPTO huggingface dataset:
Patent GB-743419-A (GB)
Title: Improvements relating to luminescent screens
IPC: C09K11/02
Filed: 1953-03-09
Abstract: A method of preparing a phosphor screen comprises making a mixture of a phosphorescent powder with a liquid anaerobic monomer prepared according to the process described in Specification 724,188, applying a coating of the mixture to a layer of backing material such as solid polymeric methyl methacrylate or glass, compressing the mixture, preferably downwardly, between the backing layer and a flat surface, preferably of glass, to polymerize the monomer by the exclusion of air, and removing the flat surface when the polymerization is complete.  The anaerobic monomer can be prepared by forming a mixture of tetra-ethylene glycol di-methacrylate, water and a small amount of an organic peroxide as an accelerator, emulsifying the mixture and then passing oxygen through it for a time sufficient to increase the active oxygen content above 0.1 per cent, the temperature being maintained above 25 DEG  C.
Patent GB-1018013-A (GB)
Title: Production of magnesium and other metal chlorides from siliceous magnesium minerals
IPC: C01B33/187
Filed: 1964-02-17
Abstract: Aqueous solutions of the chlorides of Mg and other metals are obtained from siliceous minerals by first finely dividing the mineral to particles - 20 mesh (Tyler).  The particles are mixed and leached either at atmospheric pressure or in a sealed vessel with HCl of 25-38% by weght concentration in an amount slightly in excess of the theometrical stoichiometric requirement. The mixture is heated and agitated during the leaching to keep particles in suspension and maintained at substantially boiling temperature. The MgCl2 and other metal chlorides are separated from the insoluble silica by mechanical means (e.g. filtration).  Examples relate to the separation of MgCl2 from olivine.
Patent GB-1154684-A (GB)
Title: An Improved Fastener.
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B5/10
Filed: 1967-02-10
Abstract: 1,154,684. Stud and socket fastenings. F. T. PRODUCTS Ltd. 9 Feb., 1968 [10 Feb., 1967], No. 6574/67. Heading E2B. A fastener made of resilient plastics for securing two apertured panels 10, 11 together comprises a stud 13 and a bush 14, the stud having a head 16, a shank 15 and a pair of lugs 17, 18, the bush having a base with projections engaging the aperture in one panel 10 and a pair of resilient arches 30, 31 on which the lugs move when the stud is rotated. The two arches have each a central indentation in which a lug engages. The bush has a rectangular aperture with a central enlargement for the shank, and central projections 34, 35 and two pairs of side legs with outwardly directed shoulders to grip the aperture in the panel 10. The stud has a rib 21 which retains a washer between the rib and panel 11.
Patent GB-822206-A (GB)
Title: Wall, consisting of reinforced concrete frames covered by wall plates
IPC: E04B2/64
Filed: 1957-02-27
Abstract: 822,206. Walls. SCHOKBETON N. V. Feb. 27, 1957 [March 12, 1956], No. 6612/57. Class 20(4) Upright reinforced concrete frames 1, 3, Fig. 1, connected by bolts 6 are completely covered by reinforced concrete wall plates 16, Fig. 3, having overlaps 16 which at the vertical plate edges cover the joints between adjacent frames. Intercommunicating drainage grooves 20, 22 are provided centrally of the horizontal plate edges, and frame edge chamfers coact at the frame joints to provide vertical drainage grooves behind the vertical plate edges. The plates 15 are located by turned-over ends 32 of plate reinforcing rod extensions passed through frame web bores 30, Fig. 1.
Patent GB-137432-A (GB)
Title: An improved vessel for the purpose of efficient sterilization of surgical instruments and the like
IPC: A61L2/26
Filed: 1919-03-18
Abstract: 137,432. Harvey & Co., G. A., Munn, H., and Harvey, S. G. A. March 18, 1919. Disinfecting.-For sterilizing surgical instruments, the sterilizer proper h, which has rounded corners and edges, is surrounded by a jacket b having a perforated bevelled top, for the purpose of preventing radiation. The lid has an obliquelyarranged rim d, which, when the lid is vertical, sheds the water of condensation back into the sterilizing-vessel. The front part i of this rim is deeper than the rest, so that, in opening the lid, the steam escapes at the sides and not at the front.
Patent GB-628154-A (GB)
Title: Improvements in devices for registering webs longitudinally as fed to cutting or thelike machines
IPC: B26D5/20
Filed: 1947-03-12
Abstract: 628,154. Feeding and registering webs. KUSTNER FRERES & CIE. SOC. ANON. March 12, 1947, No. 6927. Convention date, April 2, 1946. [Class 100 (i)] For guiding webs 2 having printed impressions 3 to the cutting devices 8, 9 of a packing - machine, registering mechanism is provided to ensure that the impressions 3 are arranged centrally of the cut wrapper. The web 2 is led over a control roller 6 to a feed and cutting roller 7 which is formed with grooves 28, Fig. 4, and suction channels 29 for gripping the web to the roller, and with grooves 22, 23 co-operating with the cutting knives 8, 9 which are driven synchronously with the roller 7. The roller 7 is constructed so that its semiperimeter is less than half the distance between apertures 4 in the web 2, and its effective perimeter is modified by arranging pivoted members 24, 25 in grooves in the cylinder. The member 24 is set by hand and is held frictionally in such a position that the peripheral distance between the grooves 22, 23 in a clockwise direction is slightly less than the distance between the apertures 4, 5, and the position of the member 25 is controlled automatically by a pin 19 on a piston 18 and a fixed pin 21 which are both capable of acting on a cam surface 27 carried by the member 25 which is normally arranged in its groove so as not to act upon the web. If a port 11 in the roller 6 is out of phase with an aperture 4 or 5 in the web as this aperture passes around the roller 6 the pin 18 will be maintained out of reach of the cam 27 as suction will be maintained on the piston 18 via pipes 15, 14. When, however, owing to the distance between the apertures being slightly greater than the semi-perimeter of the roller 7 an aperture 4 or 5 registers with the port 11, the pin 19 is projected by a spring 17 and the member 25 is moved out of its groove to extend beyond the surface of the roller 7 and increase its periphery so that the aperture 4 or 5 advances relatively to the port 11. At each revolution the pin 21 returns the member 25 into its groove, and the piston 18 is only actuated to project the member 25 when the next aperture 4 or 5 registers with the port 11. The roller 7 may be so arranged that its normal perimeter is slightly larger than the distance between the control apertures, and the control mechanism arranged to diminish the effective perimeter. The roller 7 may be made of separable segments which are moved apart to control the effective perimeter. The vacuum control may be changed to a pressure one, or an electric control may be used in which a circuit is closed when the aperture 4 or 5 and port 11 register.
Patent GB-648675-A (GB)
Title: Improvements in electrical plug and socket connectors
IPC: H01R13/502
Filed: 1947-03-13
Abstract: 648,675. Two-part couplings. BENDIX AVIATION CORPORATION. March 13, 1947, No. 7067. Addition to 632,501. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 12, 1946.] [Class 38 (i)] In a plug-and-socket connector 5, 6 of the kind described in the parent Specification, and comprising rigid shells 7, 32 and soft resilient contact-carrying blocks 18, 43 each slid axially into its respective shell, and readily removable thereform, the shells have circumferential lands 10, 39 which interengage with grooves 27, 48 in the blocks to locate each block in its correct position. The plug 5 and socket 6 can be fastened together by a screw-ring 17 and the block 18 is located within the shell 7 by the interengagement of its keyway 30 with a shell key 14, a similar engagement 51, 42 being provided for the block 43 and the shell 32. The key-ways 30, 51 are located in diametral alignment with two holes for the pin and socket contacts, 36, 20. The diameters of the lands 10, 39 are greater than those of the adjacent block ends but less than the diameters of the block mid-portions 25, 37, the abutment surfaces 12 and 50 of the lands being bevelled to permit the blocks to be forced into position after being correctly orientated. The other land abutment surfaces 28, 49 are flat. Key 35 and keyway 13 on the shells ensure the proper coupling of the plug and socket.
Patent GB-1488579-A (GB)
Title: Thermocurable coating composition in powder form
IPC: C08L63/00
Filed: 1975-02-20
Abstract: 1488579 Powder coating compositions BASF AG 20 Feb 1975 [21 Feb 1974] 7107/75 Headings C3B and C3P Heat-curable powder coating compositions contain as binder a mixture of (A) from 94-70 parts by weight of at least one carboxyl-containing copolymer of (a) 25-75 wt. per cent of at least one vinyl aromatic compound and/or methyl methacrylate and/or (meth)acrylonitrile, (b) 15-60 wt. per cent of at least one ester (other than methyl methacrylate) of an olefinically unsaturated carboxylic acid with a C 1-18  alcohol, and (c) 3-25 wt. per cent of an α,#- ethylenically unsaturated mono- or di-carboxylic acid, said copolymer(s) having a softening temperature (KSN) of 50-120‹ C. and a melt viscosity at 120‹ C. of 500-10,000 Pas; and (B) from 6-30 parts by weight of diglycidyl terephthalate or isophthalate. Pigments, e.g. TiO 2 , and flow improvers, e.g. an n-butyl acrylate/2-ethylhexyl acrylate copolymer, may also be present. The compositions are cured by heating at below 200‹ C., preferably without a catalyst. In examples, component (A) is a styrene/methyl methacrylate/butyl acrylate/acrylic acid copolymer.
Patent GB-698820-A (GB)
Title: Improvements relating to electrically pre-heating pipes and flanges therefor
Inventor: BRADFORD DOUGLAS NORMAN
IPC: H05B3/00
Filed: 1951-03-27
Abstract: 698,820. Welding by fusion. MUNRO & MILLER, Ltd. Feb. 29,1952 [March 27, 1951], No. 7116/51. Class 83 (iv). [Also in Group XI] A unit for heating the end portion of a pipe and a flange prior to welding them together, preferably by fusion welding, comprises a cylindrical electric resistance 16 and a flat annular resistance element 18 disposed radially adjacent one end of the cylindrical element 16. Insulating beads 18, 20 are threaded on the resistance heating wires supported on the cylinder and flat annular former. The cylindrical element 16 is wound around or supported within an asbestos cylinder 10 so that the element bears closely on the end of the pipe to be heated. The flange rests closely on the annular element 18, the end of which is connected by rigid wires 13 to an asbestos flange or asbestos-covered metal flange 14. Metal strips 20, 21 hold in place the heating elements, the ends of which are connected to terminals 23. The flange 14 may have a cylindrical part 27. The pipe and flange are preferably spot-welded together prior to placing them on the heating unit, where they are heated at about 450‹ F. before welding. When the element 16 is wound within the asbestos cylinder 10, the pipe to be heated is placed within it.
Patent GB-687481-A (GB)
Title: Improvements in coloured film-forming materials
Inventor: TAYLOR WILLIAM IVAN
IPC: C08J3/22
Filed: 1949-03-17
Abstract: A pigmented water-insoluble film forming substance devoid of water-soluble salts is obtained by forming a thermoplastic water-insoluble film forming substance, which has a capacity for water imbibition similar to that of cellulose acetate, and a pigment containing water-soluble salts into a compact solid complex containing the water-soluble salts and in which the pigment is distributed in finely-divided form throughout the film-forming substance, and subjecting the solid complex to aqueous extraction. The film-forming substance may be cellulose acetate, propionate, aceto-propionate, aceto-butyrate, or other cellulose ester or ether, or it may be a polyamide or polyurethane, e.g. a polyamide from adipic acid and hexamethylene diamine, or it may be a polyvinyl compound such as polyvinyl acetate, or a copolymer of vinyl chloride with vinyl acetate or acrylonitrile.  The film-forming substance should have a water-imbibition of 15-45 per cent by weight.  For the extraction with water or other aqueous liquid, the pigmented material may be in sheet form or in the form of short rods.  Cold or hot water may be used and several treatments may be given.  The water may contain a swelling agent for the plastic material, e.g. ethyl, methyl, or propyl alcohol, or acetone.  The salt containing pigment may be milled with a solution of the cellulose acetate or synthetic resin and the product may then be brought into compact solid form for the aqueous extraction.  Dispersion and reduction in the size of the pigment particles may be effected by kneading or rolling a mixture of the pigment, cellulose acetate and a softening agent, e.g. a volatile solvent such as acetone or a less volatile solvent such as diacetone alcohol, glycol - monomethyl ether acetate, or ethyl lactate. Kneading may be effected on heated malaxating rolls.  Evaporation of acetone or other low-boiling solvent from a cellulose acetate solution containing pigment, water, volatile solvent and high-boiling solvent may result in precipitation of the cellulose acetate intimately mixed with the pigment.  Water may be added to a solution containing cellulose acetate and a dispersion of salt-containing pigment so as to precipitate the cellulose acetate; the more volatile solvent and most of the water are then evaporated while retaining high-boiling solvent, and the residue is mechanically worked while evaporating the high-boiling solvent.  The mass is then subjected to aqueous extraction.  The proportion of pigment in the product may be 10-35 of the combined weight of pigment and film-forming material. Such a product may be used for colouring uncoloured film-forming material, e.g. for conversion into coloured fibres or foils.  Organic or inorganic pigments may be used.  Vat dyes, such as Caledon Blue RN or Caledon Brilliant Red 3BS, and mixtures of vat dyes with carbon black or water-insoluble azo dyes are specified.  White pigments may also be used.  Specification 426,912 is referred to.
Patent GB-767255-A (GB)
Title: Improvements relating to apparatus for cooking dough products of the type requiring immersion of the dough in hot oil or fat
Inventor: HUNTER HERBERT THOMAS
IPC: A21B5/08
Filed: 1955-03-14
Abstract: 767,255. Frying apparatus for doughnuts and the like. DOUGHNUT CORPORATION OF AMERICA. March 14, 1955, No. 7354/55. Class 28(1) Apparatus for cooking doughnuts or the like comprises a tank 10 containing cooking liquid through which a plurality of longitudinally spaced transversely extending elements 22 are advanced continuously, submerging members 40 being continuously advanced between the transverse elements and then raised above the surface of the liquid Tank 10 'is heated by gas burners 14. Raw doughnuts are deposited side by side at one end of the tank and are advanced by paddle members 22 which are mounted on two endless conveyers 18 carried on driven drums or sprocket wheels 20. The doughnuts are inverted between conveyers 18 by a rotary inverting member 26. Members 40 are carried between chains 34 mounted on sprocket wheels 36, 38 at least one of which is driven. The wheels 36, 38 are mounted on a frame which may be moved vertically.
Patent GB-911867-A (GB)
Title: Improvements in or relating to pulse generating circuits
IPC: H03K3/013
Filed: 1960-03-02
Abstract: 911,867. Keying carrier frequencies. SVENSKA A.B. GASACCUMULATOR. March 2, 1960 [April 3, 1959], No. 7370/60. Class 40 (5). [Also in Group XL (b)] In the normal or rest condition of a carrier keying circuit, contacts 5 short-circuit the series arrangement of contacts 2 and the input 11 of a transmitting valve 10. When the transmitting contacts 9 are closed, relay 6 is operated to close contacts 2 which remain short-circuited by contacts 5 until they are opened by relay 7 after a predetermined delay effected by an R-C circuit 13, the delay being sufficient to eliminate-the effect of bounce or chatter of the contacts 2.
Patent GB-526949-A (GB)
Title: Improvements in or relating to detachable couplings for lubricating apparatus
IPC: F16N21/04
Filed: 1939-03-07
Abstract: 526,949. Pipe couplings. KREMER, R. W. March 7, 1939, No. 7393. [Class 99 (i)] A detachable coupling for lubricating apparatus comprises a plurality of jaws 8 laterally movable against spring pressure and adapted to be urged to grip the nipple 11 by a spring-urged axially movable sleeve 10. The jaws may be carried on spring arms formed by slitting the tube 6 or they may have compression springs between them or may be connected by tension springs to an outer sleeve or a single leaf spring may be coiled in a circular groove which is formed in the base of the jaws. The tube 2 of the coupling is secured to the lubricator 5a by its head 3 engaging flanged projections 5b and being held there by a spring urged cap 5. Specification 528,768 is referred to.
Patent GB-470933-A (GB)
Title: Improvements in rotary internal-combustion engines
IPC: F02B53/00
Filed: 1936-03-12
Abstract: 470,933. Rotary internal-combustion engines. HARTLEY, H. A. March 12, 1936, No. 7415. [Class 110 (ii)] The engine comprises a rotor H having spring - pressed sliding vanes D, and a number of pawls J which drop down behind the vane tips to prevent reverse rotation of the rotor Thrust plates F are located in position by dowels.
Patent GB-1222361-A (GB)
Title: Improvements in and relating to vehicle lighting equipment
Inventor: WARNES BRIAN CHARLES JOHN
IPC: F21V7/00
Filed: 1967-02-16
Abstract: 1,222,361. Vehicle headlamps. B. C. J. WARNES, E. R. COURAGE, and R. H. COURAGE. 12 Feb., 1968 [16 Feb., 1967], No. 7540/67. Heading F4R. A vehicle headlamp consists of a reflector 14, a light source 11 and a mirror 12, so arranged that all the light from the source falls on the mirror to produce a main beam of substantially parallel light and a secondary beam which is directed downwards. The reflector 14 may be parabolic with the filament arranged with one end coincident with the focus. The mirror 12 may be planar at the lower end and curved over at the upper end so as to ensure that no light reaching it is directed, above the main beam. The light source may be a quartz-iodine lamp or the reflector 14 may comprise a sealedbeam unit. A transparent window with or without a yellow or orange filter may be arranged in front of the system. The reflector 14 may be parabolic in one plane only, and the mirror 12 may be curved transversely to alter the spread of the downward beam. The reflector 14 may be hinged at its vertex and the beam pattern adjusted by opening the two halves of the parabola. The part M of the mirror 12 or the part R of the reflector 14 may be removed or blacked out to avoid multiple reflections. Means may be provided for tilting the mirror to produce a dipped beam or the mirror may be mounted to move downwards in response to an uneven road surface, being returned by a damped spring. The inclination of the mirror may be such as to produce polarized light. A small window may be provided in the casing of the system or an additional lamp provided on the offside front corner of the vehicle to light up the road around the vehicle. Additional heating filaments may be mounted within the reflector 14 and may be so energized that the heating increases with engine speed.
Patent GB-938915-A (GB)
Title: Pulling dendritic crystals
IPC: C30B15/36
Filed: 1962-02-27
Abstract: <PICT:0938915/III/1> <PICT:0938915/III/2> <PICT:0938915/III/3> <PICT:0938915/III/4> <PICT:0938915/III/5> <PICT:0938915/III/6> <PICT:0938915/III/7> A dendritic seed is pulled from a supercooled portion of a melt, the supercooled portion having a surface area of at least 1,6 cm2, at a rate of 0,63-10 cm, so as to produce a dendritic body comprising two or more parallel dendritic crystals, each crystal being joined to the adjacent crystal by a thin web of substantially uniform thickness extending over the entire length of the body.  The parallel dendritic crystals may have a thickness of 0,05-0,625 mm. and a width of 0,5-5 mm. The web may have a thickness of 0,0025-0,075 mm. and a width of 12,5 mm.  The seed may have three interior twin planes; and may be a single dendritic crystal (Fig. 2) or a portion of a grown body comprising two or more parallel dendritic crystals with or without an intermediate web (Figs. 6 and 5, respectively).  The web of the resulting dendritic body may contain no interior twin planes (Fig. 9) or one thereof (Fig. 10 or 11).  The melt may be of silicon, germanium, zinc selenide or sulphide, or a compound of aluminium, gallium, or indium with antimony, arsenic, or phosphorus.  A semi-conductor material may be intrinsic or n- or ptype.  Induction, radiation, or electron beam heating may be employed.  Pulling may be effected in a vacuum or a protective atmosphere of argon, helium, hydrogen, or nitrogen.  As shown in Fig. 1, a dendritic body 26 is pulled from a melt 18 in a crucible 19 having a quartz lining and an apertured cover 22 of molybdenum, tantalum, or tungsten.  Crucible 19 is surrounded by a quartz heat shield 37, glass enclosure 32, and induction heating coil 20. Specifications 889,058 and 913,674 are referred to.
Patent GB-423074-A (GB)
Title: Improvements in or relating to the manufacture of paper tubes employed in the textile industries
IPC: B65H75/10
Filed: 1934-03-10
Abstract: 423,074. Paper tubes and like yarn holders. LOWRY, A. S., Oakwood Mills, Romiley, Cheshire. March 10, 1934, No. 7648. [Class 120 (iii)] A paper tube is prepared by taking a blank 1 of relatively soft and flexible paper, treating the same with an adhesive and stiffening means, e.g. a starch paste, except that part B which will ultimately become the outer and thread-receiving surface of the tube, and then winding such blank upon itself.
Patent GB-1128283-A (GB)
Title: Gantry crane for loading barges on to ships
Inventor: SCHNEIDER ALFRED
IPC: B63B27/16
Filed: 1967-02-17
Abstract: 1,128,283. Overhead travelling cranes; taking up slack. MORGAN ENG. CO. 17 Feb., 1967 [12 Aug., 1966], No. 7716/67. Headings B8B and B8H. A travelling crane A, Fig. 1, which lifts barges D and stows them in the hold of a ship E has means for preventing slack developing in the lifting cables. Each of four uprights G, Figs. 1, 11, has a pivoted arm 90 mounted at its apex. The arm supports pulleys 91, 92 over which are trained cables for respectively supporting a lifting frame 63 and operating gripping jaws 65 thereon. These arms 90 may be raised from the position shown by hydraulic rams 95 which rotate a spindle 93 by a rack and pinion. Fig. 14 illustrates the jaws 65 engaging a bracket 70 on a barge D. The jaws are closed by springs in casings 75 and are released by raising cables 78. The weight of the load holds the jaws closed. The sequence of operations for loading a barge is as follows. The arms 90 are held in their raised position by hydraulic pressure until the frame 63 is lowered into clamping position above a barge which will be moving up and down with the swell. When the frame is near the barge some of the hydraulic pressure is released by the crane operator so that the arms 90 pivot down to enable the jaws 65 to engage the brackets 70. With the jaws in contact with the barge a low hydraulic pressure is applied to the rams 95 which is sufficient to raise and lower the arms and keep the cables tight as the barge is lifted by the swell. The jaws are closed by paying out cables 78 and the hoist winches are operated to raise the barge. This forces arms 90 down on to resilient stops 94, Fig. 11. In unloading, the barge is lowered on to the water with the arms 90 on the stops 94 but with high pressure applied to the rams 95. This allows the arms to compensate for the swell when the barge floats on the water, and when the jaws 65 are released the frame 63 is rapidly raised by the arms 90 clear of the barge.