baber/WOPTO huggingface dataset:
Patent GB-1562828-A (GB)
Title: Liquid ring pumps and compressors using a ferromagnetic liquid ring
IPC: F04C19/00
Filed: 1976-11-09
Abstract: Liquid ring compressors and pumps using a ferrofluidic ring liquid are disclosed there being electrical coil means disposed around the compressor or pump casing to induce a field in the ferrofluidic ring liquid causing that liquid to form a rotating ring within the casing to drive the rotor.
Patent GB-1413736-A (GB)
Title: Video-telephone systems
IPC: H04N5/217
Filed: 1973-10-08
Abstract: 1413736 Television SIEMENS AG 8 Oct 1973 [27 Oct 1972] 46851/73 Heading H4F Fluctuations in the output of a camera tube R, which is used in a video telephone system, due to the ratio between the frame frequency of the camera tube and the frequency of light illuminating the viewed object being non- integral are compensated by using a photo cell FZ the output of which is fed via a logarithm device L and a band-pass filter BP (tuned to the frequency of the light) to a divider D which also receives a signal, via amplifier V, from camera tube R, the output signal from divider D being free from these fluctuations.
Patent GB-1159130-A (GB)
Title: Process for the Preparation of Fluorindine Dyes
IPC: C09B17/06
Filed: 1966-10-20
Abstract: 1,159,130. 5,12-dialkylfluorindines, preparation of. EASTMAN KODAK CO. 20 Oct., 1966 [23 Oct., 1965], No. 46979/66. Heading C4P. Fluorindine dyestuffs of the general formula wherein R represents an alkyl group which may be substituted e.g. by an hydroxyl group, and Z represents the carbon atoms necessary to complete a substituted or unsubstituted ophenylene radical are prepared by heating compounds of the general formula with an acid to effect ring closure. Organic carboxylic and inorganic acids, e.g. hydrochloric and sulphuric acids, may be used. Preferably the quinone compound is first prepared in situ by reacting the appropriate o-phenylenediamine with 1,4-benzoquinone preferably in the mole ratio 1: 1À5 before addition of the acid. Mixtures of o-phenylene diamines may be used and the fluorindines obtained may subsequently be quaternized e.g. by heating with dimethyl sulphate. The dyes give the shades on polyacrylonitrile.
Patent GB-1060381-A (GB)
Title: Focussing electrodes for an image converter tube or the like
IPC: H01J31/50
Filed: 1963-11-28
Abstract: 1,060,381. Cathode ray tubes; cathode materials and processing. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Nov. 28, 1963 [Dec. 4, 1962]. No. 47043/63. Heading HID. An electrode forming part of a multi-electrode electrostatic focusing system as for instance in an image converter tube having a sealed envelope and a photocathode surface produced by evaporation-depositing of at least one metallic substance after the envelope is sealed, comprises an annular body having a transverse wall 2 with a central aperture 4 and movable shutters to seal the aperture, the shutters comprising a pair of symmetrically disposed members 7 pivoted about axes 8 and having part-circular portions 6. The electrode is inserted in the envelope with the aperture 4 sealed by the shutters and after the photocathode surface has been formed the shutters are opened by shaking or spinning the tube to cause the shutter members 7 to swing apart to their open positions in which they are retained by upstanding ends on spring latch 9. Guide plate 3 assists wall 2 in retaining the shutters in their correct plane. Around wall 2 is a wall 1 having a flange 30, and evaporators are located between this and plate 3. An evaporator for alkali metal consists of container 23 connected to wire 13 along which a current is passed to heat container 23 and evaporate the charge in it. An evaporator for antimony consists of a resistance wire 16 on which is a bead of antimony 31.
Patent GB-1563732-A (GB)
Title: Polyene compounds
IPC: A61K31/22
Filed: 1976-11-12
Abstract: Polyene compounds with antineoplastic activity have the formula <IMAGE> in which R1, R2 and R3 are lower alkyl, R4 is lower alkoxy, R6 and R8 are methyl or trifluoromethyl, R9 is formyl, hydroxymethyl, alkoxymethyl, alkanoyloxymethyl, carboxyl, alkoxycarbonyl, lower alkenoxycarbonyl, lower alkynoxycarbonyl, carbamoyl, mono (lower alkyl) carbamoyl, di (lower alkyl) carbamoyl or N-heterocyclylcarbonyl, and R5, R7, R10, R11, R12 and R13 are hydrogen or fluorine; with the restriction that at least one of the radicals R5, R7, R10, R11, R12 and R13 is fluorine or at least one of the radicals R6 or R8 is trifluoromethyl. The preparation of these compounds is based on building up the side chain by the principle of the Wittig reaction.
Patent GB-1534141-A (GB)
Title: Vehicle sway control device
IPC: B60D1/32
Filed: 1975-11-17
Abstract: 1534141 Stabilizing towed vehicles W L RENDESSY 17 Nov 1975 47242/75 Heading B7T A sway control device comprises a cable or, as shown, a belt 19 having its ends secured to a towed vehicle and its central portion in frictional engagement with a curved -guide member 18 mounted on a towing vehicle. In a modification the belt has its ends-secured to the towing vehicle and the guide member is mounted on the towed vehicle.
Patent GB-1190640-A (GB)
Title: Translucent Instrument Dial Means.
Inventor: BAEZ EDGAR R
IPC: G04B19/30
Filed: 1967-10-17
Abstract: 1,190,640. Indicating apparatus. STEWARTWARNER CORP. Oct. 17, 1967 [Oct. 17, 1966; May 9, 1967], No. 47262/67. Heading G1J. [Also in Division F4] An instrument such as a tachometer, &c. comprises a transparent dial plate 42 having a layer of translucent material 46 on its back surface and a layer of light transmitting material 50 on its front surface which contrasts with an opaque pointer 34 when a light 26 is turned off and which enables the pointer to be seen in silhouette when the light is turned on. The light source is enclosed in a diffuser 28 and the plate 42 is preferably made of plastics material. The material 46 is preferably white, silver or blue paint and the material 50 is preferably a white plastics overlay secured by adhesive to the plate 42. The overlay has indicia 52 and bands 54, 56 printed on it in black and the area between the bands may be coloured. The whole of the area of the material 50 is uniformly illuminated by light diffusing directly through the materials 46, 50 and by multiple reflections from the rear surface of the plate 42 due to the reflection of light from the bevelled edge 44 of the plate. Several modifications are described of the form of the indicia and the front layer of material 50.
Patent GB-1122572-A (GB)
Title: Combustion apparatus
Inventor: CARR ERIC
IPC: F02C7/24
Filed: 1965-11-09
Abstract: 1,122,572. Ignition apparatus. JOSEPH LUCAS (INDUSTRIES) Ltd. 9 Nov., 1965, No. 47411/65. Heading F4F. [Also in Division F1] Ignition apparatus comprises an igniter 13 and a fuel burner nozzle 14 projecting through the wall 11 of a gas turbine combustion chamber and being both enclosed by a perforated cover 16, with a plurality of flanged openings 17, and an outer shell 18 having openings 19 communicating with a space defined between the wall 11 and a flare tube 12 so that cooling air may pass between the cover 16 and shell 18 and out from openings 20 which register with, but are larger than, openings 17. The igniter 13 and fuel burner 14 are carried in a body part 10 secured in the wall 11. The burner nozzle 14 is supplied with liquid fuel and air. The invention may be applied to annular combustion chambers.
Patent GB-1048684-A (GB)
Title: Prefabricated building structures
Inventor: DAWSON WILLIAM
IPC: E04B1/348
Filed: 1962-12-17
Abstract: 1,048,684. Baths, wash-basins. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 4, 1963 [Dec. 17, 1962; July 8, 1963], Nos. 47458/62 and 26896/63. Heading A4N. [Also in Division E1] A bath-room is formed from two moulded sections of a rigid synthetic thermoplastic polymeric material, (the lower of which is shown). A pressure, or vacuum assisted moulding process is employed, and the material may be a polymer or co-polymer of vinyl chloride, or an acrylic or methacrylic ester. The moulded section shown includes a bath 7, washbasin supports 10 and 11, a soap dish 8, and a toilet 9. A sink fitting 12, and a towel rail 15 are added, and the recess 14 is cut out to form a door opening. The plumbing fittings may pass through moulded holes 17. The sections may have corrugations in them to make them more rigid, and may be coated with one or more layers of a glass reinforced polyester resin, or polyurethane foam. Alternatively, a polyacylic ester sheet in the shape of a bath may be inserted in a recess formed in the moulded section, to give better wear.
Patent GB-965989-A (GB)
Title: Disc brake
IPC: F16D55/2255
Filed: 1962-12-17
Abstract: 965,989. Disc brakes. D.B.A. S.A. Dec. 17, 1962, No. 47582/62. Heading F2E. In a caliper type disc brake the caliper housing is formed of two spaced sheet metal yoke members 10, 12 disposed transversely of the plane of the disc and interconnects at least on one side of the disc by a brace member in the form of the body 14 of an hydraulic applying cylinder, each yoke member being reinforced by a casting 24, 26 attached to the yoke member 10, 12 to absorb the stresses to which the back portion of the yoke member is subjected during braking. Each casting 24, 26 is provided with an extension 30 overlying the back portion of the yoke member and radially spaced therefrom so as to form a guiding groove in which is received a portion of a fixed support member 6 on which the caliper housing is slidably mounted.
Patent GB-1153736-A (GB)
Title: An Electrolytic Cell
IPC: H01M6/16
Filed: 1966-10-24
Abstract: 1,153,736. Electrolyte for electric cells. VARTA A.G. 24 Oct., 1966 [30 Oct., 1965], No. 47678/66. Heading H1B. In an electrolytic cell, the solvent for the electrolytic salts is tetrahydrofurane alone or in admixture with up to 50% by volume of a lower aliphatic alcohol or up to 5% by volume of water. Specified positive electrodes consist of silver or a silver compound (e.g. the oxide or chloride), manganese dioxide, mercury oxide, bismuth oxide, vanadium pentoxide and nickel oxide, the preferred positive electrode being made by pressing a mixture of silver chloride or silver oxide, silver powder and zinc chloride with fine mesh nickel wire and then dissolving out the zinc chloride. Specified negative electrodes consist of zinc or zinc oxide, magnesium, cadmium, tin and aluminium. Specified electrolytic salts are zinc chloride, tin (II) chloride, aluminium chloride, phosphorus pentachloride, halides of the alkali and alkaline earth metals and magnesium, alkali metal acetates and aniline acetate. The cells may be operated in the gastight state.
Patent GB-1028265-A (GB)
Title: Method and apparatus for the manufacture of granular ammonium nitrate and associated products
IPC: B01D1/24
Filed: 1962-12-18
Abstract: <PICT:1028265/C1/1> Granular ammonium nitrate is prepared by reacting ammonia gas and nitric acid under pressure, evaporating to 96% b.w., concentrating this solution to approx. 100% in a film evaporator using a heating fluid at a temperature not above 190 DEG  C. and granulating the liquid.  Ammonia from pipe 3 and 52-57% nitric acid at ambient temperature from pump 1 enter neutralizer 2 where the pressure is 4 kg./cm.2, and the exothermic reaction raises the temperature to 175-180 DEG  C.  The solution of 75-80% ammonium nitrate produced is led by pipe 4 to vacuum evaporator 5, where it circulates through tubes 51 and is reheated by vapour given off in 2. The 96% solution from 5 is sent to tank 11 directly or via evaporator 12 (where it is concentrated to 97-98% at 8 kg./cm.2); and pumped into mixer 15 where limestone may be added (for producing low-nitrogen fertilizers) it is then conveyed to film evaporator 21, having a heat exchange tube surrounded by steam heated jackets, and an upper expansion chamber.  Agitators form a film of the solution on the wall of the tube, which may be of e.g. Al, Ti, Ta or stainless steel, and the 100% solution produced is sent via constant level tank 24 to spraying means 25 at the top of granulating tower 26. Evaporator 21 may be operated under vacuum; or at atmospheric pressure while air at 60-80 DEG  C. is fed at 0.25m.3/kg. of solution through exchanger 23 to the lower (hottest) part of 21, whence it circulates and is exhausted at 27.  The granules are uniform spheres; less than 2% passing a 1 mm. sq. screen.
Patent GB-1362720-A (GB)
Title: Flexible permanent magnet
IPC: H01F1/113
Filed: 1971-10-14
Abstract: 1362720 Flexible ferrite magnets H G COCHARDT 14 Oct 1971 [14 Oct 1970] 47911/71 Heading C1J [Also in Division C3] Flexible permanent magnets contain ferrite particles embedded in an elastomeric binder, the ferrite particles having predominantly single crystal characteristics and at least a proportion of the ferrite particles being of multi-domain size. Powdered iron ore is the basic raw material from which such ferrites are made, typical starting mixes comprising 19% BaCO3, 80% Fe2O3 and 1% of SiO2, sulphates, CaO and/or Al2O3. Additionally the ferrites may contain Sr, Pb or Ca. An example describes the manufacture of a ferrite from 800 g. Fe2O3, 180 g. of BaCO3 and 20 g. of PbO.SiO2 which was calcined at 2150 F., pulverized, milled in water and pressed.
Patent GB-1527307-A (GB)
Title: Gas turbine engines
IPC: F02C7/232
Filed: 1976-11-19
Abstract: 1527307 Gas turbine engine fuel systems-purging GARRETT CORP 19 Nov 1976 [21 Nov 1975] 48362/76 Heading F1G The invention relates to a gas turbine engine fuel system in which means are provided to purge the fuel conduits with air under pressure upon engine shut-down. The fuel system comprises a fuel pump 32, a fuel line 34, a control valve 36, a primary drain valve 46 comprising a spring-loaded piston valve 48, a similar secondary drain valve 64, and a pressure-differential valve 56 which controls flow of fuel to the secondary drain valve. In normal engine operation fuel passes from pump 32 through open valve 36 to act on the valve member 48 of the primary drain valve 46 whereby the valve member moves downwardly against loading of the spring 50 to open port 47 whereby fuel flows through primary conduit 52 to a fuel manifold and primary burners 54 in the engine combustion chamber. At a certain rate of flow of fuel through restriction 44 in line 34, the ball valve 58 is caused to open due to the differential pressure acting on opposite sides of the capsule 62, whereby fuel now flows also through line 63 and secondary drain valve 64 to the secondary supply conduit 68 and secondary burners 70 in the combustion chamber. The drain valves 46, 64 when in the fuel shut-off positions shown, place the fuel conduits 52, 68 in communication with purge lines 86, 88. When the engine is shut down by closing valve 36, the purge valve 92 is simultaneously placed in the open position shown by the electrical control 94. Thus air under pressure in the accumulator 82 now passes through line 84, through check-valve 90 to the purge lines 86 and 88; the air thus passes through the conduits 52, 68 also through the fuel manifolds and burners 54, 70 which are thus purged of fuel, the fuel being burned in the combustion chamber. The accumulator is charged with air under pressure taken from the compressor discharge 16 through bleed connection 24 and line 76, a checkvalve 80 being fitted in the line; air taken from the bleed connection 24 is also utilized for de-icing the engine intake at 28.
Patent GB-1010247-A (GB)
Title: Polymerization of 2,2,4-trimethyl-1,2-dihydro-quinoline
IPC: C08G73/00
Filed: 1963-12-10
Abstract: 2,2,4 - Trimethyl - 1,2 - dihydroquinoline is polymerized in the presence of a catalytic amount of anhydrous aluminium chloride.  The polymerization is conducted at a temperature of between 80 DEG  and 140 DEG  C.  The anhydrous aluminium chloride is preferably dispersed in an inert organic solvent before mixing with the 2,2,4-trimethyl-1,2-dihydro quinoline.  The polymerization may be carried out employing either the pure material or the crude reaction product result ing from the reaction of aniline and acetone.ALSO:2,2,4-Trimethyl - 1,2 - dihydroquinoline is polymerized in the presence of a catalytic amount of anhydrous aluminium chloride. The polymerization is conducted at a temperature of between 80 DEG  and 140 DEG  C.  The anhydrous aluminium chloride is preferably dispersed in an inert organic solvent before mixing with the 2,2,4 - trimethyl - 1,2 - dihydroquinoline.  The polymerization may be carried out employing either the pure material or the crude reaction product resulting from the reaction of aniline and acetone.
Patent GB-1000364-A (GB)
Title: Semiconductor junction devices
IPC: H01L23/29
Filed: 1962-12-27
Abstract: 1,000,364. Semi-conductor device. RADIO CORPORATION OF AMERICA. Dec. 27, 1962 [Jan. 19, 1962], No. 48717/62. Heading H1K. A semi-conductor device is made by depositing through a mask on one or more restricted areas of a prepared doped semiconductor wafer a thin coating of a dopant material capable of inducing opposite conductivity type in the wafer, depositing on the coating a further metal layer and heating the dopant and further layer to alloy them to the wafer. In the embodiment fast acting diodes are made from an etched P-type germanium wafer 10 by evaporating on gold and diffusing it into the wafer prior to the formation on one surface thereof of a photo resist mask 13. The mask pattern includes several circular openings through which is deposited a coating of antimony from an electroplating bath. A second plating step forms a lead coat on the antimony layer and the assembly is then heated to alloy the lead and antimony into the wafer; details of the alloying process are described. A silicon dioxide or magnesium hydroxide film may be applied to the wafer prior to the alloying step. The diodes so formed may be separated by dicing the treated wafer. The dopant materials may be applied to the silicon or germanium wafers by printing or silk screening techniques. Instead of lead, tin or tin-lead alloys may be used on silicon, germanium or silicon-germanium alloy wafers. For. initially N-type semi-conductor indium, gallium or aluminium may be used as dopant with zinc or cadmium mentioned for use with gallium arsenide or indium phosphide. For transistor manufacture both large faces of the wafer may be treated as described.
Patent GB-1049978-A (GB)
Title: Improvements in the manufacture of fire hose
Inventor: BRINSON ROGER
IPC: F16L11/02
Filed: 1964-12-01
Abstract: 1,049,978. Flexible hoses. GEORGE ANGUS & CO. Ltd. Nov. 10, 1965 [Dec. 1,1964], No. 48796/84. Heading F2P. A flexible fire hose comprises a textile jacket 10 having an impermeable rubber or plastics lining 15 and an outer abrasive-resistant rubber or plastics cover 16, said cover having a plurality of sealed small holes or cuts 21 so that, on puncture 23 of the lining, high pressure fluid within the hose bore will cause local rupture 22A of the cover and not cause substantial detachment of the cover from the jacket. As shown, the holes or cuts may only extend partially through the cover or, alternatively, as illustrated in Fig. 4 (not shown), the holes may extend through the full thickness of the cover In this latter case, the holes may be sealed by various methods described with a suitable material 24 such as natural or nitrile rubber latex, polyvinyl chloride latex or emulsion, or a wax. A method of manufacturing the hose as illustrated in Figs. 1 and 2 (not shown), comprises the steps of drawing the textile, jacket through an extruding head 12, which simultaneously coats the jacket with inner and outer layers as described in Specifications 856,955 and 977,208, drawing the hose through a cooler 13, partially or fully perforating the outer layer or cover by drawing the hose between a pair of rollers 17 having axial, staggered rows of tapered pins 20, specific pin and pin-spacing dimensions being stated, and sealing the resulting holes when the cover is fully perforated.
Patent GB-1055568-A (GB)
Title: Improvements in or relating to bearing sheets for surface compressing apparatus
IPC: B27M1/02
Filed: 1963-12-11
Abstract: 1,055,568. Casting composite articles; continuous casting. HOOVER, BALL & BEARING CO. Dec. 11, 1963 [Dec. 11. 1962; Oct. 4, 1963], No. 49019/63. Heading B3F. [Also in Divisions B5 and F2] A method of making a bearing sheet 18, Fig. 4 (not shown), comprising a woven wire screen 12, 14 impregnated with babbit bearing material 16, and having a set of strands 14 each extending parallel to the longitudinal direction of the sheet, comprises the steps of cleaning the woven wire screen of impurities, covering the cleaned screen with molten babbit and applying pressure to the covered sheet while protecting it from ambient air. An apparatus, Fig. 1 (not shown), is used for cleaning and " tinning " the screen 10 with babbit and comprises a tank 26 containing molten babbit 24 above which is positioned a flux tank 20. During " tinning " the screen 10 is secured at 30 to the tank 26 and is reeled off a roll 22 placed in the flux tank 20, so that the screen passes under a hold-down roll 28 and enters the babbit wet with flux. In an alternative arrangement the screen is coated with a flux containing acetone, which is evaporated by a fan to leave a film of flux on the screen whereby the " tinning " operation is eliminated. After drying the " tinned " or acetone fluxed screen 10 is inserted in molten babbit in a container 34, Fig. 2 (not shown). The container is divided by a baffle 36 under which the screen 10 is passed into the space between a lower platen 40 and a floating platen 38. The platens are provided with heating elements 42, 44 and are squeezed together under a pressure of 100 pounds per square inch, whereupon the heaters 42, 44 are turned off. After the babbit has hardened, the platens are separated and the bearing sheet is removed. The screen is preferably made of finely drawn annealed copper alloy wire having a composition essentially 80% copper and 20% zinc or of phosphor bronze. The composition of the babbit is stated to be either 2% tin, 1% antimony and 97% lead or 5% tin. 10% antimony and 85% lead. An apparatus (see Division B5) for compressing the surface of wood and incorporating the bearing sheet according to the invention is described.
Patent GB-1116506-A (GB)
Title: Modified cellulosic materials
IPC: D06M13/13
Filed: 1965-11-18
Abstract: Cellulosic materials, e.g. cotton which may be mixed with polyester fibres, viscose rayon, linen and flax, which have been chemically modified by the introduction of carbonyl radicals to render them crease resistant, are treated with a reducing agent to reduce at least 36% of the carbonyl radicals, to improve their resistance to hydrolysis and to discolouration on laundering. The carbonyl containing radicals may be introduced into the cellulosic materials by reacting them with bis (2-pyridinium ethyl) ketone dichloride, dihydroxy acetone or an acetone - formaldehyde precondensate.  The reducing agent may be Li AlH4, Li BH4, Na BH4, KBH4, Mg (AlH4)2,Na AlH4, Al H3, Al (BH4)3, Ca (BH4)2, NaHB(OCH3)3 or an aminoborane, e.g. morpholine borane.  The alkali metal borohydrides may be used in conjunction with a catalyst or accelerator which may be a complex metal salt of copper, nickel or cobalt, e.g. K4 Co(CN)6, K2Ni (CN)4, or a magnesium, aluminium or lithium halide.  The reducing agent may be applied to the cellulosic material as a 0.5-5% by weight aqueous solution or as a solution in isopropanol, tetraethylene glycol dimethyl ether or dimethyl formamide by immersion, spraying or padding, the reaction being effected at temperatures up to 150 DEG C.
Patent GB-1096380-A (GB)
Title: Improvements in or relating to the treatment of onions
Inventor: PARSONS LESLIE ARTHUR
IPC: A23N15/08
Filed: 1966-07-04
Abstract: 1,096,380. Preparing onions &c. LES PARSONS & SONS (ENGINEERS) Ltd. Nov. 4, 1966 [July 4, 1966], No. 49489/66. Heading A4C. The claims relate to the onion skinslitting device described in Specification 1,096,377.