baber/WOPTO huggingface dataset:
Patent GB-1103831-A (GB)
Title: Sintered mixture of metallic oxides and method for preparing such a mixture
IPC: C04B35/26
Filed: 1965-04-08
Abstract: 1,103,831. Magnetic compositions. E. G. LJUNG. 8 April, 1965 [8 April, 1964], No. 14960/65. Heading H1H. A ferrite for microwave purposes having a composition comprising 50-60 mol. per cent NrO, 20-45 mol. per cent Fe 2 O 3  and 5-20 mol. per cent Cr 2 O 3  is prepared by mixing the ingredients, ball-milling in ethanol for 4-40 hours, drying, pressing into cylinders, presintering for 15-16 minutes at 800-1000‹ C., and rapidly cooling, grinding to a particle size of less than 1 mm., re-milling for 6-12 hours, drying, pressing into shape, providing an optional first sintering treatment at 1000- 1100‹ C. for 15-60 minutes followed by slow cooling, and then giving a second sintering treatment between 1200‹ and 1400‹ C. for 2-12 hours, followed by slow cooling. The sintering above 1000‹ C. takes place in an oxygen atmosphere which may be provided by a flow of gas or by maintaining an equilibrium atmosphere in a sealed furnace. Reference has been directed by the Comptroller to Specification 782,762.
Patent GB-496557-A (GB)
Title: Improvements in or relating to vacuum tubes
IPC: H01J7/18
Filed: 1937-05-31
Abstract: 496,557. Discharge apparatus ; obtaining high vacua. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 31, 1937, No. 14998. Convention date, June 1, 1936. [Class 39 (i)] [Also in Groups XI and XXVIII] A container which is more especially for getter material and is adapted to be mounted within the envelope of a vacuum tube comprises a holder having a chamber adapted to receive a pellet from which a hot vaporous active metal may be evolved by heating, and a narrow channel communicating with the chamber so formed and arranged that the inner surface of the wall of the channel is maintained cooler than the vapour of the active metal which passes through it, whereby the stream of vapour evolved on heating is made to follow a substantially straight line trajectory. The container may be formed of a piece of sheet metal 4 having pressed out recesses 5 and grooves 9. The getter material is placed in the recesses 5 and the sheet is folded over to form the chamber and channel, the edges of the container being sealed by welding. Alternatively, the container may be formed of tubing which is flattened and sealed at its ends. To keep the temperature of the inner surface of the wall of the channel colder than the getter vapour, the inner surface may be coated with a material of low conductivity such as a refractory metal oxide. Alternatively, the channel may be lined with or formed wholly of a tube of ceramic material of low heat-conducting properties, or heat radiating fins may be pressed out of the channel portion of the container, or this portion may be coated with carbon. The container may hold getter material which is directed by the channel on to a part of the envelope of an electron discharge tube away from leads or other insulating members; alternatively, the material may also be used to deposit a pattern of sensitizing material of any desired shape upon a surface in or on the envelope to constitute an electrode. and for this purpose the channel is given a rectangular or other cross-section corresponding to that of the electrode surface to be produced, British Specifications 264,258, and 271,419, [Class 39 (i)], and U.S.A. Specification 1,966,226 are referred to.
Patent GB-155312-A (GB)
Title: Improvements in change-speed gearing for self-propelled vehicles
IPC: B62M25/00
Filed: 1919-06-14
Abstract: 155,312. Rigby, E. J., and Clarke, P. C. June 14, 1919. Change-speed gearing.-A two-speed chain gear driven by the engine of a motor-vehicle is arranged in series with a two-speed toothed gear. Sprockets 2, 3 secured to the engine shaft 1* drive sprockets 6, 7 loose on a hollow shaft 26 and adapted to be selectively connected thereto by clutches operated by a rod 9, which passes through the shaft 26 and is actuated by a treadle lever 8. A double dogclutch 22 slides on a square sleeve 33 secured to the shaft 26 and is adapted to engage a clutch 23 and drive directly a sprocket 12 geared to the road wheels. The clutch 22 may alternatively engage a clutch 23, when the drive passes through a loose gear 20, and countershaft gears 21, 16 to a gear 18 secured to the sprocket 12.
Patent GB-525250-A (GB)
Title: Improved composition for obtaining rubber-containing deposits on fibrous substances
IPC: C08L21/02
Filed: 1939-05-22
Abstract: 525,250. Indiarubber compositions. OESTERREICH, K. E. W. May 22, 1939, No. 15199. Convention date, May 31, 1938. [Class 70] A rubber-containing composition which on coagulation gives an adherent rubber-containing precipitate upon fibrous substances is formed by dissolving in an aqueous alkaline solution of phenol-aldehyde resol a dispersion of animal or vegetable lecithin in boiling water, adding wood tar or wood tar oils, for example, birch tar and boiling to obtain solution, and after cooling adding a mono- or di-saccharide for example glucose and sodium or potassium silicate, and mixing the solution with about an equal weight of natural or synthetic rubber latex. A swellable clay such as china clay may be added. On addition of a dispersion of fibres in water and of a coagulating agent such as a weak acid or acid-reacting salts, the fibres become coated with a rubber-containing precipitate.
Patent GB-685324-A (GB)
Title: Improvements relating to electricity meters
Inventor: WOLFENDEN RONALD HARCOURT
IPC: G01R11/40
Filed: 1950-06-19
Abstract: 685,324. Eddy-current brakes. MEASUREMENT, Ltd. April 19, 1951 [June 19, 1950], No. 15243/50. Class 35. Meter-disc braking magnets 4 are of U- shape and their flux is localized by the use of soft iron counterpoles 6 to reduce magnetic coupling with the driving members 2. The magnets, which are fitted on mild-steel blocks 5, and the counter poles are mounted on non-magnetic frame 3. The braking action may be adjusted by turning the magnets or moving them radially of the disc, or using variable magnetic shunts. Specification 588,628, [Group XXXIV], is referred to.
Patent GB-130829-A (GB)
Title: Improvements in and relating to Bats, Racquets and the like.
IPC: A63B51/00
Filed: 1918-09-20
Abstract: 130,829. Acton, J. H. H., and Slazengers, Ltd. Sept. 20, 1918. Rackets.-Relates to the stringing of rackets employed in such games as tennis, badminton, and rackets. The holes for the cross strings or for the mains at the head of the racket or for both sets of strings are so arranged that the portions 4, 4a of the strings supported by the edge of the frame, are in their entirety parallel to, but are alternately on opposite sides of, the central plane.
Patent GB-945801-A (GB)
Title: Sterilization of spores
IPC: A01N63/22
Filed: 1960-05-02
Abstract: Dried spores of an inclusion-forming species of B. cereus, i.e those producing the so-called crystalline inclusion bodies under suitable fermentation conditions, e.g. B. thuringiensis, are sterilized by subjecting them to high-velocity electrons, e.g., beta-, or gamma-rays emitted by X-ray generators, resonant transformers, linear accelerators, nuclear reactors and fission products. A Van de Graaf electron accelerator may be used.  The sterilized spores may be used as insecticides (see Division A5).ALSO:Dried spores of an inclusion-forming species of Bacillus cereus i.e. those producing the so-called crystalline inclusion bodies under suitable fermentation conditions e.g.  Bacillus thuringiensis are subjected to high-velocity electrons e.g. beta or gamma rays emitted by X-ray generators, resonant transformers, linear accelerators, nuclear reactors and fission products, to produce sterilized spores.  The sterilized spores may be used as active ingredient for insecticidal compositions which may also have incorporated other insecticides and/or fungicidally active compounds e.g. such as pyrethrum, derris resins, rotenone, DDT, hexachlorocyclohexane, nicotine, lime sulphur, Bordeaux mixture, sulphur, fluosilicates, arsenates, copper salts, lead salts, thiocyano esters together also with wetting and/or spreading agents.
Patent GB-376900-A (GB)
Title: Improved apparatus for administering air or oxygenated air
IPC: A61G10/04
Filed: 1931-05-26
Abstract: 376,900. Respiratory apparatus. TAYLOR, T. A., Taylor-Woods Building, Lufkin, Texas. U.S.A. May 26, 1931, No. 15415. [Class 81 (ii).] Apparatus for administering air or oxygenated air to a person having the upper part of the body within an enclosure, comprises a box directly adjacent the enclosure and forming one wall thereof, and having means for regulating the temperature and volume of the air passing therethrough. A tent 2, enclosing the patient's head, is closed by the box 6 and supported on rods 2<1> pivotally secured to the same. One or more windows 3 may be provided. Air from the enclosure 2 enters the box 6 by the opening 10 and, after being cooled by contact with ice in a container 17 and its moisture condensed, returns by the opening 11. The amount of air is regulated by means of doors or valves 12, 29. Oxygen may be introduced by means of a pipe 7 and inlets 30, 31 near the base of the box. The pipe 31 may be coiled and disposed in the drip pan 24, which receives the surplus water from the ice, so that cooled oxygen is supplied directly to the enclosure through the outlet 34. Other refrigerants than ice or an electric refrigerator may be used. A separate container for solid carbon dioxide may be enclosed in the upper end of the ice box 17 and extend through the opening 18. Additional fresh air is supplied by opening either the door 18 or the larger door 15. A perforated container 28 filled for example with soda lime may be provided to remove carbon dioxide. Around the top edge of the box, a perforated plate 20 is provided upon which medicated cotton or like material may be placed. In a modified form, the box 6 is made as a double walled ice container, the air passing through the intervening space, or a part thereof which can be closed off from the remainder by means of a valve.
Patent GB-167046-A (GB)
Title: Improvements in or relating to side cars for motor cycles
IPC: B62K27/04
Filed: 1920-06-09
Abstract: 167,046. Westwood, J. W. June 9, 1920. No Patent granted (Sealing fee not paid). Side-cars; bodies.-A motor-cycle side-car is provided with a removable seat and false bottom which form the cover of a luggage compartment. The body has side rails 1 half-lapped into the uprights 2 to form a supporting ledge for a seat and false bottom extending forwards from a back rest 3 and between uprights 5 forming the compartment ends. The forward well 6 contains a footboard 7 the inclination of which is varied by engagement with a spring-pressed rack 8. A rear compartment 10 is provided with a door 11. A suit case fitting the main compartment may be provided.
Patent GB-1376639-A (GB)
Title: Charge coupled devices
IPC: H01L21/00
Filed: 1972-04-05
Abstract: 1376639 Semi-conductor devices WESTERN ELECTRIC CO Inc 5 April 1972 [6 April 1971 (2)] 15571/72 Heading H1K A charge coupled storage device (Fig. 5), comprises a semi-conductor charge carrier storage layer 50 of, e.g. P-Si bounded by insulant layer 51 and isolated by underlying PN junction 52 with N-layer 53. Control electrodes 54, 55, 56 are connected to a conventional 3-phase drive over conductors 57, 58, 59, and the storage layer 50 is biased from source 60 over electrode 61 with respect to layer 53 so that minority carriers are removed from the storage layer and stored information representative charge carriers are confined to the bulk interior thereof, and controllably movable between discrete storage sites therein. Electrode 61 may comprise a Schottky contact or may ohmically overly a P<SP>+</SP> region 62. The field gradient influencing the carriers is enhanced by applying voltage V on electrode 54 and 2V on electrode 55 (Fig. 6, not shown), while the electrode spacing may be extended. Uniform charge distribution to avoid interelectrode potential wells is obtainable by incorporating fixed charge into the structure adjacent the regions between the field plates; by implanting five ions into the insulant layer and/or the semi-conductor using the electrodes as masks or by providing an insulant layer 7 covering the electrodes, over which a positively biased field plate is placed having a configuration nearer to the semi-conductor in the regions between the electrodes (Fig. 7). Four layer metalization is usable for the same purpose. When a Schottky barrier or PN junction isolates the channel from the biasing electrode, the insulant layer may be eliminated and the electrodes may be placed directly on the semiconductor storage layer, which is isolated on the buried side by the PN junction formed with its substrate. The electrodes are, for Schottky barriers in a Si substrate, Cu, Mo, Ni, Wo, or any Pt group metal; formed in windows of an insulant layer (Fig. 8, not shown). P-regions diffused through windows of an oxide layer, or from doped metal contacts; or ionically implanted; may underlie the drive electrodes (Fig. 9, not shown). A metal insulator barrier may bound both planar faces of the storage medium, and the latter may be bi-laterally isolated by PN junctions, while dual storage layers may be interiorly isolated by an opposite conductivity layer and bonded exteriorly by metal-insulant layers. Explanatory energy level diagrams (Figs. 1A, 1B, 2, 3, 4, not shown), and formulae for dopant densities are given.
Patent GB-131194-A (GB)
Title: Improvements in and relating to Pipe Cutters.
Inventor: SCOTT FREDERICK HENRY
IPC: B23D21/08
Filed: 1918-09-25
Abstract: 131,194. Scott, F. H. Sept. 25, 1918. Pipe-cutters. - A pipe-cutter of the kind in which the cutting-mechanism is rotatably connected to a. clamping-device adapted to grip the pipe, comprises a ring member 11 in two pivotally connected parts 12, 13 adapted to be secured together by a catch 15. The ring is provided with two cutting disks 32 and a third cutting disk 31 carried by a member 26 adjustable by a screw 27. The screw is provided with a squared recess 29 to receive a handle 30 for turning the handle 11, and similar recesses 34 are provided to permit intermittent turning of the member by the handle 30 in confined spaces. The clamp comprises a similar two-part ring member 10 provided with two jaws 23 and a jaw 18 adjustable by a screw handle 19. The members 11, 10 are connected by interengaging flanges 16 which permit relative rotation and also a slight relative movement transversely of the axis of the pipe to permit the cutters 32 to be maintained in cutting engagement with the pipe. In a modification, the cutters 32 and jaws 23 are slidably mounted in recesses in the ring-members and are adjustable by screws.
Patent GB-725887-A (GB)
Title: Hemostatic surgical dressings
IPC: A61L15/28
Filed: 1953-06-05
Abstract: A dressing incorporates free acid cellulose glycolic acid ether or free acid cellulose hydroxypropionic acid ether as a haemostatic agent.  The substance may be incoporated in a gauze dressing or sponge for application to a wound or it may be applied in bone wax. Additionally, the dressing may comprise a poly-ol compound such as glycerine to prevent adhesion of the dressing to the clot.  The acid cellulose ether may be added to the dressing by means of any of its soluble salts, soluble forms of the acid itself or by synthesis of the cellulose ether on cellulose fibres. In a preferred procedure the ammonium salt is made by direct contact of free acid carboxymethyl or carboxyethyl cellulose powder with concentrated aqueous ammonium hydroxide solution. The ammonium salt is then diluted and applied directly to the surgical composition.  Then, after drying, the material is heated to decompose the ammonium salt into ammonia and free acid cellulose derivative.  This is perferably subjected to further heat treatment to render it partially insoluble in water.
Patent GB-1505964-A (GB)
Title: Rotor body for an electrical machine
IPC: H02K3/48
Filed: 1976-04-15
Abstract: 1505964 Rotor bodies for dynamo-electric machines KRAFTWERK UNION AG 15 April 1976 [29 April 1975] 15724/76 Heading H2A A rotor core for superconducting windings includes a cylinder 1 of uniform diameter having in its outer surface 2 coil slots each of which follows a closed path, the straight, axial slot sections 4 being connected by circumferential end sections 5 for the end windings. The winding may be secured by a shrunk-on outer cylinder 6, in addition to conventional slot wedges in sections 4.
Patent GB-1143452-A (GB)
Title: Improvements in high pressure saturated vapor sodium lamp containing mercury
IPC: H01J61/22
Filed: 1967-04-06
Abstract: 1,143,452. Metal-vapour lamps. GENERAL ELECTRIC CO. 6 April, 1967 [26 April, 1966], No. 15751/67. Heading H1D. A high pressure sodium  vapour discharge lamp comprises a tubular elongated envelope 11 of material resistant to the attack of sodium vapour at high temperatures, a pair of electrodes 15 and 15<SP>1</SP> sealed into opposite ends, and an ionizable medium within said envelope comprising an inert starting gas and a quantity of a sodium-mercury amalgam in excess of that vaporized in operation of said lamp, the atomic fraction of sodium in the excess amalgam being in the range from 0À5 to 0.9, whereby a partial pressure of sodium is developed in the range of 30 to 1000 torr along with a partial pressure of mercury in the range of 0.1 to 5 atmospheres when the excess amalgam in said lamp envelope is maintained in liquid form at a temperature in the range of 600 to 950 C. at the coldest place in said lamp envelope. The envelope 11 of the lamp shown may be made of sintered high density polycrystalline alumina ceramic with niobium end-caps 12, 13 sealed thereto by a composition 14 comprising aluminium and calcium oxides and supporting activated tungsten wire thermionic cathodes 15 and 15<SP>1</SP> by way of metal tubes 17 and 17<SP>1</SP>, tube 17 having an exhausting and filling aperture 18 and being pinched off at 19. The arc tube support comprises a single side rod frame 21. A getter, e.g. barium powder, is pressed into channelled rings 27. The starting gas is preferably xenon at a pressure of 20 torr, but neon with from 0.1 to 1% argon may be used.
Patent GB-1457246-A (GB)
Title: Treatment of phenolated aqueous effluents
IPC: C02F1/78
Filed: 1975-04-16
Abstract: 1457246 Treatment of phenolated effluents ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES (ELF) 16 April 1975 [17 April 1974] 15764/75 Heading C1C A process for the treatment of phenolated effluents comprises introducing into a linear reactor, the length L and cross-section S of   which are such that the ratio L/#5 is greater than 5, firstly a phenol-containing effluent at a linear speed higher than 0À75 cm/sec and secondly a gas containing sufficient ozone for correctly oxidizing the phenol-containing products which are present. The invention is particularly concerned with the continuous tertiary treatment of sewage waters where the phenol content is of the order of a few p.p.m.
Patent GB-885635-A (GB)
Title: Electrolytic production of saturated fluoro-carbons
IPC: C25B3/28
Filed: 1960-05-05
Abstract: 885,635. Preparing fluoro-carbons and calcium metal. DU PONT DE NEMOURS & CO., E.I. May 5, 1960 [May 8, 1959], No. 15852/60. Class 41. Saturated fluoro-carbons are made by electrolysing molten calcium fluoride in O-free conditions with a carbon anode and molten tin or tin alloy as cathode on which metallic calcium is deposited. An inert gas is used, temperatures of 1400 to 1600 C. and a voltage under 15 v. and preferably less than 10 v. Tin alloys, with Al, Bi, Si, Pb in monor amounts may be used as cathode. In a suitable apparatus, a cylindrical chamber 10 of stainless steel or alumina, contains a graphite crucible 15, holding the molten tin cathode 16 which may be confined by a retainer ring of boron nitride 17. A water-cooled brass lid 11 is provided with an inlet 12 and outlet 13 for an inert gas, and an anode assembly consisting of a consumable carbon tube anode 20, supported in bushings 21 of P.T.F.E., and an inner electrode 22 of graphite or tungsten. The graphite crucible is protected from corrosion by a " skull " of solid calcium fluoride 25, having an outer cooling jacket. The gases evolved through a port A are cooled in liquid nitrogen, and consist of 60 to 90 mols. per cent of carbon tetrafluoride mixed with minor amounts of hexafluor-ethane, silicon fluorides, and traces of CO 2  and other fluoro-carbons. In an alternative apparatus, the carbon tube anode 20 ends above the level of molten calcium fluoride and is provided with a cylindrical shield made of boron nitride, of wider diameter than the anode tube and projects downwards through the electrolyte and into the molten tin cathode. The calcium fluoride used should be dry, free of oxides, and in powder form. U.S.A. Specification 1,552,143 is referred to.
Patent GB-568523-A (GB)
Title: Improvements in soot blowers
IPC: F28G3/16
Filed: 1943-09-28
Abstract: 568,523. Valves. AKTIEBOLAGET SUPERIOR. Sept. 28, 1943, No. 15924. Convention date, Oct. 13, 1942. [Class 135] [Also in Group XXVIII] In a soot blower of the type in which a blower-tube 2 is advanced to and retracted from an operative position and is rotated in that position, the cleaning-fluid supply valve 32 is open only whilst the blower is in the operative position and is closed by a device including trip means which operate just prior to the valve reaching its seat, the valve movement being completed by the cleaning fluid pressure. A gear-wheel 12 which actuates the blower-tube actuates through a gear-wheel 48 and screw 50, a sleeve 52 and trip levers 54 engaging the valve-stem collar 58. The levers are tripped by a fixed sleeve 46 allowing the sleeve 52 to advance over the valve stem whilst the blower tube is retracted. A shoulder (not shown) may hold the valve closed when the blower tube is in the retracted position.
Patent GB-1420904-A (GB)
Title: Process for the preparation of compounds which contain hydantoin  rings
IPC: C07D233/72
Filed: 1974-04-10
Abstract: 1420904 Hydantoin derivatives BAYER AG 10 April 1974 [11 April 1973] 16005/74 Heading C2C [Also in Division C3] Compounds containing at least one hydantoin or thiohydantoin group are obtained by (1) reacting mono-, di- or poly-primary amines with compounds containing at least one α-halocarboxylic acid ester group and (2) reacting the crude reaction product thus obtained with mono-, di- or poly-isocyanates or isothiocyanates. The isocyanates may be used partly or completely in the form of masked isocyanates which are obtained by reacting the free isocyanates with compounds containing reactive hydrogen. The reaction may be carried out in a solvent, e.g. an optionally substituted aliphatic or aromatic hydrocarbon solvent or a phenolic solvent.
Patent GB-910749-A (GB)
Title: Improvements in box spanners
Inventor: MELDRUM THOMAS
IPC: B25B13/06
Filed: 1958-05-19
Abstract: 910,749. Spanners. MELDRUM Ltd., THOMAS. May 13, 1959 [May 19, 1958], No. 16034/58. Class 61. A box spanner has a U-shaped handle 13, Fig. 2, with its end 18 bent over to pivot in recesses 16 and terminating with enlarged burred or-swaged ends 18 adjacent the inner face of the spanner tube 12 so that the spanner may be passed completely over the head of a sparking-plug.
Patent GB-160464-A (GB)
Abstract: 160,464. Kennedy, J. E. Oct. 23, 1917, [Convention date]. Crushers with gyratory heads. - Relates to crushers for reducing stones, ore, &c., and of the kind in which the gyratory shaft carrying the crushing-head is pivotally suspended at its upper end while its lower end is journaled in an eccentric bearing mounted in a rotatable sleeve. The sleeve e<1> is provided with a pulley ex rigidly and concentrically mounted thereon, and power is transmitted to the pulley e<x> from a pulley J on the power shaft K by means of one or more ropes or belts i guided by one or more deflecting idlerpulleys L. The pulleys L are mounted in bearings which are adjustable in inclination, as well as vertically and horizontally.