baber/WOPTO huggingface dataset:
Patent GB-947820-A (GB)
Title: Improvements in or relating to brake mechanism for arresting and releasing movable parts
IPC: B66D5/00
Filed: 1961-09-07
Abstract: 947,820. External shoe-drum brakes. MARKHAM & CO. Ltd., and W. McGUIRE. July 13, 1962 [Sept. 7, 1961], No. 32205/61. Heading F2E. In a brake mechanism for mine winding gear two pairs of brake shoes 14, 13 are mounted side by side and the two shoes of each pair are pivoted at one end 15, 16 to a fixed part of the structure 17 and are interconnected with one another by a lever link system 20, 22 and with transmission rods 25 such that the transmission rods 25 are adapted to be actuated by separate spring means 45 and released by separate hydraulic means 54. Should one of the transmission rods 25 break the collective thrust of all the springs 45 act upon the links 40 associated with the other transmission rod and a full braking effort will be applied to the pair of shoes associated with that rod when the other pair of shoes is rendered inoperative.
Patent GB-1036478-A (GB)
Title: Process and apparatus for preparing cellulosic paper pulps
IPC: D21D5/02
Filed: 1963-08-15
Abstract: 1,036,478. Paper-making apparatus. B. GHIGLIOTTI & L. GHIGLIOTTI. Aug. 15, 1963 [March 11, 1963], No. 32359/63. Heading D2A. [Also in Division B2] Resin coated paper waste is shredded, and a suspension of cellulosic fibres thus obtained is separated from comparatively large sized resin particles by continuously running the suspension through a separating strainer having such a mesh size to allow the suspension of cellulosic fibres to pass through while holding back the resin particles. The strainer comprises a rotating drum 8 covered with a wire cloth and mounted in an endless channel in a vat 1. The fibrous suspension flows from the drum interior through an opening 85 and over a flange 86 mounted on the vat into a duct 12. The resin particles float to the top of vat and are removed, either continuously or intermittently through an overflow duct. Vanes 84 on the drum assist in the circulation of the suspension in the vat. In a modification (Fig. 4, not shown) the opening 85 is smaller and the fibrous suspension is scooped up to it by means of members extending the length of the drum between the centre and the periphery.
Patent GB-1187922-A (GB)
Title: Pyran Derivatives and a Related Open-Chain Hydroxy Ketone
Inventor: WENDLER NORMAN LORD
IPC: C07D313/00
Filed: 1968-01-16
Abstract: 1,187,922. Pyran derivatives and a related open-chain hydroxy-ketone. MERCK & CO. Inc. 16 Jan., 1968 [18 Jan., 1967], No. 32382/69. Divided out of 1,187,921. Heading C2C. Novel 10 - hydroxy - 1 - undecen - 6 - one, obtained by the interaction of 4-pentenyl magnesium bromide (or iodide) and 2-hydroxyhexanoic acid-#-lactone (prepared by treating 4- acetylbutyric acid with sodium borohydride and sodium bicarbonate and subsequently acidifying the mixture with hydrochloric acid), is converted to novel 2-(pent-4-enyl)-6-methyl- #<SP>2</SP>-dihydropyran by distilling in vacuo; treatment of the dihydropyran with aqueous hydrochloric acid results in the reformation of the 10-hydroxy compound. The dihydropyran is converted into a novel 2-(pent-4-enyl)-2- (C 1-5  alkoxy) - 6 - methyl - tetrahydropyran, utilizing a C 1-5  alkanol in the presence of acid, which is in turn converted into a novel aldehyde I (R 3  signifies C 1-5  alkyl) via an ozonide; reduction of I or the ozonide with an alkali metal borohydride yields the novel alcohol II but in the presence of aqueous acid 1,7-di-oxa-2- methyl-spiro [5: 5] undecane is formed: treatment of II with aqueous alcoholic mineral acid also yields the spiro compound and II may be obtained from the spiro compound utilizing dry alcoholic hydrogen halide. Novel 2-[#- (phenyl, tolyl or alkyl)-sulphonyloxybutyl]-2- C 1-5  alkoxy-6-methyl tetrahydropyrans, prepared from II using standard methods, are converted to the corresponding novel 2-(8-bromo- and -iodo)-compounds, utilizing an alkali metal bromide or iodide, from which are obtained the novel phosphonium halides III wherein Ar is aryl and X is iodine or bromine.
Patent GB-521126-A (GB)
Title: Improvements relating to speed control of alternating current generators
IPC: H02P29/00
Filed: 1938-11-08
Abstract: 521,126. Correspondence control. PRICE, D. R., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 8, 1938, No. 32452. Drawings to Specification. [Class 40 (i)] [Also in Group XXXV] In control systems using frequency responsive relays with alternators of differing frequencies for selective connection to power lines, relays with delayed response are used so that the alternator when connected to the lines has time to reach its steady speed and correct frequency before response occurs.. The alternator has its speed maintained constant by tuning its complete circuit to a frequency slightly above the response frequency, it being driven by means having a drooping torque-speed characteristic so that it is incapable of reaching the resonance speed.
Patent GB-177199-A (GB)
Title: Improvements in steam superheaters for locomotive and similar tubular boilers
IPC: F22G7/06
Filed: 1920-11-17
Abstract: 177,199. Fraser, W. S., and Wells, C. E. Nov. 17, 1920. Smoke-tube superheaters. -. A smoke-tube superheater for a locomotive-type boiler has a header A divided into longitudinal saturated and superheated steam chambers by a vertical partition wall I, and elements B connected to the bottom wall of the header by bolts L passing through bridge-pieces M on the ends of the elements and through holes in the partition wall. A balanced damper D apertured by a steam cylinder on the outside of the smoke-box regulates the passage of gases through the smoke-tubes.
Patent GB-652163-A (GB)
Title: Improvements in or relating to a wood screw manufacturing process
IPC: B21K1/56
Filed: 1947-12-10
Abstract: 652,163. Forging screw-threads; making wood-screws. BULLONERIA E VITERIA ITALIANA B.E.V.I. Dec. 10, 1947, No. 32575. Convention date, April 27, 1946. [Classes 83 (ii) and 83 (iv)] A process for manufacturing wood-screws comprises successive forging operations by threaded dies operating transversely to the length of a cold metal blank of round section, characterized in that the part of the blank which is to have the thread is first forged to an approximately rectangular or oval section and then a pair of dies operate on the edges of the blank along the line of its major axis to produce partial threads, and change the sectional shape of the blank to contract its major axis and expand its minor axis, after which a second pair of dies close on to the work at opposite sides and complete the thread and change the sectional shape of the blank to circular form. A round metal blank 1 is forged to substantially rectangular section 3, thence to a substantially elliptical rough-threaded section 6 in dies 4, 41, and finished in dies 7, 71. The wire 1 may comprise a continuous length which is shaped at intervals along its length. The dies may be shaped to produce screws having tapered shanks.
Patent GB-535126-A (GB)
Title: Device for collecting golf balls, fruit and the like
IPC: A63B47/02
Filed: 1939-12-21
Abstract: 535,126. Picking up tools. CARTWRIGHT, A. B. Dec. 21, 1939, No. 32696. [Class 61(ii)] A device for picking up golf balls from the ground comprises a tube 11 fitted at the lower end with a flanged member 14 and ring 16 with bristles 17 which return the ball in the tube after being forced therebetween. Fig. 4 shows a modification wherein the tube 21 is fitted with a cap 22 with ledges 23 to which are secured as retaining members flexible rubber flaps 25 by means of wires 27. Or the tube may be fitted with a central opening slot round the edge or with hinged pins.
Patent GB-1393833-A (GB)
Title: Carbon fibre reinforced nickel matrix composite having an intermediate layer of metal carbide
IPC: H05B3/14
Filed: 1973-07-09
Abstract: 1393833 Coating carbon fibres by hotdipping, hot pressed fibres UNION CARBIDE CORP 9 July 1973 [10 July 1972] 32704/73 Headings C7D and C7F The bonding of carbon fibres in a nickel matrix improved by providing the fibres with a carbide layer by immersing them in a molton alloy bath comprising a metal e.g. Ti, Zr, Hfi, V, Nb, Ta, Cr, Mo, W, and Fe which reacts to form a carbide and an acid soluble metal e.g. In, Ge, Ga, Sn, Sb, Bi, Ag, Cu which does not react with carbon, and subsequently removing unreacted metal with an acid, e.g. nitric, hydrochloric or sulphuric. Ni may be deposited on the coated fibres by electrodes or electrolytre methods, thermal decomposition of carbonyls or halides or by sputtering, and the coated fibres hot pressed 700 to 1300C. in an atmosphere of e.g. nitrogen, argon xanon, or helium. A further metal may be applied to the Ni-coated fibres before pressing.
Patent GB-664841-A (GB)
Title: Abrasive articles and methods of manufacturing the same
IPC: B24D3/28
Filed: 1948-12-17
Abstract: Abrasive grains are bonded and/or attached to a backing by a binder comprising the reaction product of a urea-formaldehyde condensate and furfuryl alcohols.  In making coated abrasive articles the said binder may constitute both the "making" and "sizing" coat or it may constitute one coat and another adhesive, e.g. hide glue or a phenol-aldehyde resin, may constitute the other.  In examples: (1) abrasive discs are made by applying to a layer of cloth filled with resin a making coat containing water, an aqueous suspension of an initial urea-formaldehyde condensate, furfuryl alcohol and an accelerator comprising an ammoniacal solution of ammonium thiocyanate and thiourea.  The cloth is then coated with fused alumina abrasive grain, the making coat dried, a sizing coat made by diluting the making coat with water applied, and the whole dried and cured; (2) and (3) as in (1) except that the making coat also contains respectively walnut shell flour and cryolite; (4) abrasive discs are made on a cloth backing using hide glue as the making coat and a mixture of an aqueous suspension of an initial urea-formaldehyde condensate, furfuryl alcohol, the accelerator of example (1) and walnut shell flour as the sizing coat; (5) abrasive paper is made with a glue making coat, fused alumina abrasive grain, and a mixture of an aqueous urea-formaldehyde condensate, furfuryl alcohol and the accelerator of example (1); (6) abrasive wheels are made by moulding a mixture of an aqueous urea-formaldehyde condensate, furfuryl alcohol, the accelerator of example (1), pulverized flint and abrasive grain.  Instead of the accelerator of example (1) there may be used ammonium sulphate, aluminium sulphate, aluminium chloride, ferric chloride or a 20 per cent solution of ammonium thiocyanate containing ammonia. Specification 610,302 is referred to.
Patent GB-802646-A (GB)
Title: Improvements in or relating to adjustable inductance coils
IPC: H01F21/08
Filed: 1956-10-26
Abstract: 802,646. Inductors. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 26, 1956 [Nov. 8, 1955], No. 32721/56. Class 38 (2). An adjustable inductor comprises a ferromagnetic disc 16 to which the ends of U-shaped core members 3, 4 are secured so that these are mutually perpendicular, series windings 1, 2 on the members 3, 4, and means for saturating the disc in a direction along a diameter, which direction may be varied as shown, the saturating means is a permanent magnet 18 whose poles 19, 20 lie near the periphery of the disc and which is rotatable about an axis Y, Y. The saturation of part of the disc restricts the portion available for the fluxes through the members 3 and 4, and the variation of the position of these portions causes these fluxes to either add or subtract so that the inductance of the device is varied. The magnet 18 may be replaced by a movable electromagnet or a pair of fixed electromagnets whose strengths may be varied and which are positioned in quadrature about the disc (Fig. 8, not shown).
Patent GB-406433-A (GB)
Title: Improvements in or relating to fuel or fuel-mixture vaporizers for internal combustion engines
IPC: F02M31/18
Filed: 1932-11-19
Abstract: 406,433. Vaporizers. GODWARD, E. R., 397, Ellis Road, Invercargill, New Zealand. Nov. 19, 1932, No. 32747. [Class 7 (iii).] Combustible mixture from a carburetter or a mixture formed by spraying fuel from a nozzle J into an air stream drawn up a passage H, is drawn towards a cylindrical chamber C<2>, the mouth of which is separated from a casing B, through which exhaust gases pass, by an annular passage K, light fuel particles and air passing into the chamber while heavier, wet particles are thrown outwards and, with some air, stream through the annular passage K into a vaporizing chamber. In this chamber, vertical spiral ribs A<2> on the interior of the inner wall A of the casing B co-operate with an intermediate cone C, which at its lower end carries a cylindrical casing C<1> constituting the chamber C<2>, to form passages A<1> for the mixture, the passages widening out towards their discharge ends. In the vaporizing chamber, the fuel particles are thrown against the heated wall A and ribs A<2> and are vaporized before passing through apertures E<1>, at the ends of the passages, into an expansion chamber E formed between the intermediate cone C and an inside cone D which leads to a Venturi portion F<3> opening from the chamber C<2>. The Venturi portion and an annular aperture F', leading from the expansion chamber E to a mixing chamber F constituted by the cone D, are closed by the bulbous end G<1> of a valve G adapted to be lifted to permit the mixture passing up the chamber C<2> to draw the mixture from the expansion chamber E and to mix with it before the combined mixtures pass through outlets F<1> to the induction manifold.
Patent GB-809875-A (GB)
Title: Improvements relating to drawers, especially drawers for metal furniture and the like
Inventor: HARVEY GORDON COLUMBA
IPC: A47B88/00
Filed: 1956-10-26
Abstract: 809,875. Drawers. HARVEY & CO. (LONDON) Ltd., G. A. Oct. 25, 1957 [Oct. 26, 1956], No. 32758/56. Class 52(1) The front plate 1 of a drawer 7 has flanges 2 engaging corresponding flanges 7<SP>1</SP> on the sides and bottom of the drawer, and is held in position by a tray-like plate 8 fitting in the drawer and having a flange 10 abutting the rear of front panel 1, the tray-like plate 8 being secured in position on the front plate 1 by a trim member 12 bolted to the front plate and extending over part of the tray-like plate 8. The bolts may also be used to secure the drawer handle 16 in position. Channel members are inserted in the side flanges 2 to keep the flanges 2 and 7<SP>1</SP> pressed together.
Patent GB-1197583-A (GB)
Title: Method of and Apparatus for Grinding Solid Particles
Inventor: SZEGVARI ANDREW
IPC: B01F7/00
Filed: 1967-07-17
Abstract: 1,197,583. Ball mills. A. SZEGARI. 16 July, 1968 [17 July, 1967], No. 32770/67. Heading B2A. A stirrer type. ball mill has an agitator with arms 6a, b, Fig. 1, alternately disposed at right angles to a shaft with a baffle, e:g. a disc 9 (which may be vaned) between each pair, to prevent liquid flow along and immediately around the shaft. The arms may be located in grooves and cross-bolted to the shaft. Alternatively the agitator may comprise known plates or rings which would (in the absence of (baffles) permit flow along and immediately around the shaft. Balls from 1/16" to 9/116" of e.g. steel or ceramic, e.g. steatite, aluminium oxide, zirconia or hafnium dioxide, or small pebbles may be used, with rotor speeds from 100 to 800 r.p.m. The mill may have a sieve to prevent loss of grinding media.
Patent GB-925729-A (GB)
Title: Improvements relating to the production of polypropylene
IPC: C08F10/06
Filed: 1961-09-13
Abstract: Propylene may be polymerized in the presence of a catalyst prepared by a process which comprises grinding titanium trichloride with lithium chloride under inert conditions and mixing the product with an aluminium alkyl.  Grinding may be effected with rod, pebble, ball or jet mills; and grinding and polymerization may be effected in the presence of a solvent or diluent, e.g. pentane, hexane, cyclohexane, heptane, octane, isooctane, benzene, toluene or xylene.  The aluminium alkyl may be aluminium triethyl or aluminium triisobutyl, or a dialkyl or monoalkyl aluminium chloride.  The polymers may be purified by refluxing with a hydrogen chlorideisopropanol-acetyl acetone mixture.  In Example I a catalyst of the invention is compared with one in which the lithium chloride is replaced by potassium chloride.
Patent GB-471175-A (GB)
Title: A thermal insulation applicable also for use in heat radiation
IPC: F24D3/12
Filed: 1935-11-28
Abstract: 471,175. Electric heating. NAAMLOOZE VENNOOTSCHAP INTERNATIONALE ALFOL-MAATSCHAPPIJ. Nov. 28, 1935, No. 33043. Convention date, Nov. 28, 1934. Drawings to Specification. [Class 39 (iii)] [Also in Group XIII] Heat insulation comprising at least one metal plate or foil of small radiation capacity which forms a boundary of a gaseous layer completely isolated from the medium on the other side of the plate or foil, is adapted for heat radiation by beating the plate or foil, or at least one if a number be used, by passing an electric current therethrough. A number of sheets of aluminium foil are arranged in spaced relation and electricallv insulated from each other. The sheets may be corrugated and adjacent ones may be arranged at right-angles, the points of contact of the sheets being insulated by means of pieces of paper. The whole of the sheets may be insulated by forming an oxide coating thereon. Irregularly crumpled sheets of foil may be used, particularly for insulating curved surfaces. The heating of the foils may be graded, the foil adjacent to the part being insulated, being at the highest temperature. The metal plates or foils may be replaced by paper sprayed with a metallic coating. The insulation and radiator may be used in rooms. U.S.A. Specification 1,920,685 is referred to.
Patent GB-1028433-A (GB)
Title: Improvements in or relating to a selective ortho-alkylation process
IPC: C07C37/14
Filed: 1964-08-13
Abstract: Phenols are selectively ortho-alkylated by reaction at elevated temperature and a pressure up to 3000 p.s.i.g. with an olefin in presence of a zirconium aryloxide.  Examples describe the production as the main products of o-(a -methylbenzyl)phenol and 2,6 - bis(a  - methylbenzyl)phenol from phenol and styrene; thymol from m-cresol and propylene; o-sec.-butylphenol from phenol and 1-butene; o-t.-butylphenol from phenol and isobutylene; o-butenylphenol from phenol and butadiene; o-a -methylnonylphenol from phenol and 1-decene; 2-t.-butyl-6chlorophenol and 2,4-di-t.-butyl-6-chlorophenol from chlorophenol and isobutylene; 2-(a methylbenzyl)-1-naphthol from naphthol and styrene; 2 - (a  - methylbenzyl) - 6 - phenylphenol from o-phenylphenol and styrene; oethylphenol from phenol and ethylene.  A number of other suitable phenols and olefins are listed.  The catalyst is preferably derived from the phenol undergoing alkylation and may be formed in situ.
Patent GB-638447-A (GB)
Title: Improvements in or relating to lead alloys
IPC: C22C11/00
Filed: 1947-12-16
Abstract: A lead alloy, particularly for the manufacture of cable sheaths, has the following composition: As 0.01-0.2 per cent, Cu 0.02 -0.1 per cent, one or both of Sn and Ag in the following amounts: Sn 0.25-1.0 per cent, Ag 0.005-0.07 per cent, Pb the remainder.  Specification 595,339 is referred to.
Patent GB-783743-A (GB)
Title: Methods of repairing sheet metal panels
IPC: C08J5/04
Filed: 1955-11-21
Abstract: 783,743. Repairing damaged car bodies. GENERAL MOTORS CORPORATION. Nov. 21, 1955 [Nov. 22, 1954], No. 33203/55. Class 83 (4). [Also in Group XXXII] A method of repairing a damaged motor-car body, fuel tank or other sheet metal panel comprises successively applying a liquid epoxy resin and layers of glass fibres to the portion of the sheet metal panel to be repaired and permitting or causing the liquid epoxy resin to set. In an embodiment a hole 12 in a metal panel 10 is repaired by first cleaning the surfaces adjacent the hole with a hydrocarbon solvent and then indenting the sheet metal surrounding the hole to provide a secure bonding of the resin and to permit proper contouring of the patch (Fig. 4). The metal surrounding the hole is heated to evaporate moisture and two or more fibre-glass cloth layers 16 are cut to size. Catalysed resin is now applied to the sheet-metal by brushing or spraying and the first fibre-glass layer 20 is pressed into position. A second coat of resin is applied to the layer 20 and these steps are repeated to provide sufficient fibre glass layers to obtain the desired thickness of patch. The repaired area is covered with paper while the resin is setting which may be expedited by heating with infra-red lamps. Final contouring is effected by grinding, hand filing and sandpapering (Fig. 6). If the rear surface of the damaged panel is accessible a fibre-glass reinforced epoxy resin patch 23 (Fig. 9) is applied to the rear surface 25 to bond with the patch 27 on the front surface 29 of the panel. If there is a large unsupported area to be repaired where a backing is necessary chopped fibre-glass or crushed paper is used as a filler. Small holes or tears 31 may be provided adjacent any rusted area 33 (Fig. 10) to effect a secure anchoring of the patch on a badly rusted panel. Dents in panels may be repaired according to the invention as shown in Figs. 7 and 8.
Patent GB-796807-A (GB)
Title: Insulating coating for silicon steel sheet or strip
IPC: C23C26/00
Filed: 1956-10-31
Abstract: An insulating coating is produced on the surface of silicon steel sheet or strip by applying thereto a coating or an aqueous solution containing 10-60 per cent by weight of zinc dichromate and heating the coated metal at 500-700 DEG C. for 10-40 seconds.  1-5 per cent by weight of glycerine may be added to the solution in which case the heating is performed at 200-500 DEG C.  The solution may also contain 2-5 per cent by weight of boric acid.
Patent GB-775539-A (GB)
Title: Preparation of water-soluble sulphonation products of polymeric ar-vinyltoluenes
Filed: 1955-11-21
Abstract: Ar-vinyltoluene polymer particles of diameter up to 10m  or aggregates of such particles of up to 15m  are sulphonated in the presence of an inert diluent, capable of swelling the polymer, by agitating at - 20 DEG  to + 40 DEG  C. with at least 0.7 mol. of sulphur trioxide per mol. of monomer.  The polymer should be free from crosslinking and soluble in toluene, dioxane or methyl ethyl ketone and may contain up to 40 per cent of one or more of vinyl esters, vinyl ketones, vinyl ethers, ethylene, isobutylene, styrene, ethyl acrylate, methyl methacrylate, acrylonitrile, methacrylonitrile, maleic anhydride, vinyl halides and vinylidene halides.  In place of sulphur trioxide a sulphur trioxide complex with dioxane, thioxane or bis-(b -chloroethyl) ether may be used. Suitable diluents are liquid sulphur dioxide, methyl chloride, methylene chloride, carbon tetrachloride, ethylene chloride and tetrachloroethylene.  Co-diluents, e.g. 1,2,3,4-tetrachloro-1,1,2,3,4,4-hexafluorobutane may be employed. The polymer may be finely divided by crushing or grinding, by atomizing the dissolved or molten polymer or by coagulating, e.g. by freezing or adding electrolytes, or spray drying a polymer emulsion or dispersion.  The polymer may be sprinkled on, suspended in air or nitrogen and blown into, or added in suspension in the diluent to a solution of the sulphonation agent. Alternatively, the polymer and a solution of the sulphonation agent may be introduced simultaneously into the diluent and the process made continuous by withdrawal of the reaction mixture. The product may be separated by filtering or centrifuging and converted to salts by reaction with ammonia, sodium or potassium hydroxide or amines.  The salts may be used for treating textiles, preparing emulsions and dispersions and soil conditioning. Specification 773,956 is referred to.