baber/WOPTO huggingface dataset:
Patent GB-888917-A (GB)
Title: Improvements in or relating to electronic apparatus employing transistors
IPC: H04B1/26
Filed: 1959-12-10
Abstract: 888,917. Radio receiver arrangements. COLE Ltd., E. K., and WALTERS, C. A. Nov. 28, 1960 [Dec. 10, 1959], No. 42005/59. Class 40(5). In electronic apparatus incorporating transistors switching means are provided for switching the transistors from one circuit to another, the movable element of the switching means carrying contacts which are fixed to appropriate transistor electrodes and support the transistors. A radio receiver adapted to receive either F.M. or A.M. transmissions comprises two panels A, B mounted at rightangles to each other, panel A carrying components and printed wiring (not shown) associated with the F.M. intermediate frequency stages of the receiver and panel B components and printed wiring (not shown) associated with the A.M. local-oscillatormixer and I.F. stages. A longitudinally operable switch positioned between the two panels consists of a fixed contact assembly C carrying two sets of fixed contacts CA, CB which are held by rivets E, and a movable slide-bar D carrying contacts CD each of which is held in position by two small projections F which pass through the bar and are then twisted, one of the projections being used as a connecting tag for the appropriate lead of a transistor. The slide bar contacts are shaped so that the slide bar is held captive relative to assembly C but is permitted to move longitudinally under the control of spring H between two operative positions; in one (as shown) contacts CD engage contacts CA and in the other contacts CD engage contacts CB. Thus to change over from the reception of F.M. transmissions to that of A.F. transmissions the element D is slid from one operative position to the other in order to connect the transistors T into the appropriate stages.
Patent GB-1217793-A (GB)
Title: Improvements in and relating to driving movable parts of a vehicle coachwork, more especially a sliding roof
IPC: B60J7/057
Filed: 1969-08-25
Abstract: 1,217,793. Vehicle window actuating mechanism. WEBASTO-WERK G.m.b.H. 25 Aug., 1969 [23 Oct., 1968], No. 42308/69. Heading E2M. [Also in Division F2] A vehicle window operating mechanism comprises a bridge 6 which moves with the window 2 and carries an electric motor 5 having a hollow drive shaft 7 through which is guided a screw-threaded cable 4, one end of which is secured to vehicle structure at 9, and the motor shaft 7 carries a wheel 8 which is in screw-threaded engagement with the cable 4. As the window 2 moves in one direction the free end of the cable 4 passes into a guide tube 10. The cable portion between the end fixing 9 and the motor is housed in a telescopic guide tube 11, 12. Springs 13, 14 urge the part 2 in the closure direction. The motor 5 may have an overload switch or an overload slipping clutch.
Patent GB-1304389-A (GB)
IPC: F16F15/067
Filed: 1970-09-04
Abstract: 1304389 Helical springs GENERAL ELECTRIC CO 4 Sept 1970 [10 Sept 1969] 42505/70 Heading F2S An end turn 15 of a helical spring is of reduced diameter and square with the axis of the spring. An associated generally cylindrical end connector 7 has a tapered end and a peripheral groove 14 square with the axis of the connector. The turn 15 snaps into the groove 14 and follows it for an angle of atleast 180 degrees, preferably (as shown in Fig. 4) 225 degrees. Fig. 1 (not shown), depicts a refrigerator compressor supported by three springs each mounted in the above described manner.
Patent GB-1180057-A (GB)
Title: Improved Sulphur Dioxide Drying.
Inventor: MOLLER LEOPOLD
IPC: B01D53/26
Filed: 1967-09-20
Abstract: 1,180,057. Drying sulphur dioxide; sulphuric acid. IMPERIAL SMELTING CORP. (N.S.C.) Ltd. 29 Aug., 1968 [20 Sept., 1967], No. 42775/67. Heading C1A. A gas containing sulphur dioxide, water and organic material is dried by contact with 50- 70% H2SO4 in a first stage and at least 75% H2SO4 in a second stage. The acid strength in the second stage is preferably 90-99À5%. Excess acid generated in both stages by water adsorption is removed and the remaining acid (and the removed acid if desired) may be brought to the required strength by addition of oleum or by adsorption of SO3. Acid from the first stage may be strengthened by SO3 adsorption in the main adsorber of a contact H2SO4 plant while that from the second stage, which contains all the organic impurities and is coloured black, may be strengthened by SO3 adsorption in a separate adsorber. The drying towers are preferably packed with glass or ceramic material, e.g. Berl saddles, Raschig rings, and the temperature of the first stage is such that 70-90% of the water is removed, i.e. normally below 90 C.
Patent GB-839631-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop lying on theground
IPC: A01D78/16
Filed: 1956-07-03
Abstract: 839,631. Haymaking machines. VAN DER LELY N.V., C. July 3, 1956 [July 5, 1955], No. 43210/59. Divided out of 839,630. Class 6(3). A tractor-mounted haymaking machine having power-driven rake-wheels 34, 35, 36 comprises two parts pivoted together about a horizontal axis, the first part being connected to the tractor and the second part carrying the rake-wheels, the second part being rotatable through 180 degrees about the axis to convert the machine from a tedder to a side-delivery rake. The first frame-part comprises a tube 23 adjustably mounted in a horizontal plane on a supporting frame 16, 17 carried by tractor draught links 3, 4, 5, the whole machine being wheel-less and being supported by a spring 18 connected between the top hitch-point 13 and the frame-member 17. The second frame-part consists of a beam 26 carrying tubes 25, 27, 28 through which pass axles 31, 32, 33 carrying the rake-wheels the axles 31, 33 being driven by gearing 37, 38, 45 from the axle 32 which passes through the tube 23 and is connected by gearing 47 to a shaft driven from the tractor power take-off. The first and second frameparts have mating flanges where they meet and are resiliently connected together by springs, Fig. 4 (not shown), so that limited rotary movement of the second part about the first can occur. When the second part is inverted, about the axis of the shaft 32, the rake-wheels no longer co-operate and the device operates as a tedder.
Patent GB-976509-A (GB)
Title: Improvements in or relating to glass cathode-ray display tubes
IPC: H01J29/87
Filed: 1961-12-06
Abstract: <PICT:0976509/C1/1> The junction of the glass cone 1 and display face 3 of a cathode-ray tube is covered with an elastic cloth embedded in a synthetic resin 5, to minimize the risk and effects of implosion. The tube may first be coated with an adherence-improving layer 7 of polyvinyl-acetate, over which is stretched an elastic, circular-knitted glass fibre cloth, which is then sprayed with an unsaturated polyester resin. A conductive metal network may be provided in the glass fibre cloth.  Specifications 971,702 and 976,508 are referred to.
Patent GB-890069-A (GB)
Title: Improvements in mountings for heat exchangers
Inventor: SYPTAK KAREL
IPC: F28F9/00
Filed: 1959-12-23
Abstract: 890,069. Tubular heat exchangers. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Dec. 23, 1959, No. 43772/59. Class 64(3) In a tubular heat exchanger consisting of a tube nest 1 extending within a shell 9, the tube nest is rigidly connected at its ends to header members 2, 3 constituting supports each received in a spring or like resiliently mounted carrier 4, relative axial movement between the tubes and the shell being provided for by means (not shown) such as stuffing boxes. In the arrangement shown, expansion of the tubes proceeds from a fixed mounting 10, a fixed mounting for the shell 9 being provided at the point 11. Movement in a vertical direction due to relative expansion is accommodated by the resilient mounting of carriers 4 and by member 13 incorporated in the inlet duct 12, for fluid such as air, to be heated, and in the inlet duct 15 for a heating fluid such as combustion products.
Patent GB-947482-A (GB)
Title: Novel polyurethane foams
IPC: C08G18/48
Filed: 1959-12-29
Abstract: The invention comprises a rigid polyurethane foam comprising the reaction product of an aromatic diisocyanate, a polyoxypropylene ether having a molecular weight in the range of 200 to 1200 which is the condensation product of propylene oxide with a hexahydric alcohol and a gas generant.  The gas generant can be a low boiling liquid which vaporizes under the heat of reaction or can be provided by excess diisocyanate and a compound having one or more active hydrogen atoms, which may be water, polyoxypropylene ether or a dibasic acid, specifically succinic acid.  Sorbitol, mannitol, dulcitol and iditol are suitable hexahydric alcohols.  In the reaction mixture there may also be incorporated siloxane foam stabilizing and emulsifying agents, accelerators such as methyl piperidine, N,N,N1,N1-tetramethyl-1,3-butanediamino, tribenzylamine and pyridino, and antioxidants such as benzoquinone, hydroquinone, pyrogallol, 2, 6-di-t-butyl-4-methylphenol, amines and salts having oxidisable functions.  In the example a foamed product is prepared by blending (a) a product obtained on heating together sorbitol propylene oxide reaction product, toluene diisocyanate, 2,6-di-t-butyl-4-methylphenol and silicone emulsifying agent and (b) more sorbitol/propylene oxide reaction product, monofluorotrichloromethane, triethylene diamine, N.N.N1, N1-tetramethyl-1,3-butane diamine and more 2,6-di-t-butyl-4-methylphenol.  Specification 947,483 is referred to.
Patent GB-1153707-A (GB)
Title: Treatment of Phosphoric Acid, Process, Apparatus & Product
IPC: C01B25/28
Filed: 1967-09-27
Abstract: 1,153,707. Ammonium phosphate. W. R. GRACE & CO. 27 Sept., 1967 [20 Oct., 1966], No. 44072/67. Heading C1A. Granular ammonium phosphate is produced by heating an aqueous solution of wet-process orthophosphoric acid, to a temperature below its boiling point, adding ammonia to the heated solution, suddenly reducing the pressure on the solution to effect flash evaporation causing cooling and dehydration of the reaction mixture and producing a melt of ammoniated phosphate. The melt is churned to further cool it and form a granular product. The ammonia and phosphoric acid are mixed in the ratio of N:P 2 O 5  of between 6: 50 and 15: 65, preferably between 10: 56 and 15: 65. An apparatus is described for carrying out the process in which the flash evaporation is effected by spraying the ammoniated solution into a closed vessel under substantially atmospheric pressure, the vapours from this vessel being withdrawn into a scrubber where ammonia vapour is removed by scrubbing with phosphoric acid, which together with its contained ammonia is recycled to a stage prior to the ammoniation. Granulation is preferably effected by churning the melt into recycled granules of the product. The process may be used to produce a granular ammonium phosphate fertilizer containing by weight total of at least 3% of Fe, Al, Ca and F, 6 to 17% nitrogen 50 to 65% phosphorus expressed as P 2 O 5  of which 35 to 65% is polyphosphate, 99% is citrate-soluble and at least 90% water-soluble.
Patent GB-940139-A (GB)
Title: Improved compositions based on vinyl halide polymers, cured products obtained therefrom and a process for the manufacture of such products
Inventor: PETTIT MAURICE RAYMOND
IPC: C08F259/04
Filed: 1960-12-22
Abstract: 940,139. Chlorine-containing graft copolymers. B.X. PLASTICS Ltd. Dec. 19, 1961 [Dec. 22, 1960], No. 44154/60. Heading C3G. A composition comprising a vinyl halide polymer, an allyl or methallyl monomer that is substantially non-volatile under the conditions of use and has a plasticizing action on the vinyl halide polymer and a saturated synthetic rubber is cured, the product being a graft copolymer in which the polymer chains formed from the allyl or methallyl monomer are chemically bonded to the vinyl halide polymer and, when an monomer having a functionality greater than 2 is used, is also cross-linked. As a vinyl halide polymer there is specified polyvinyl chloride. Allyl and methallyl monomers specified are triallyl cyanurate diallyl phthalate, adipate and maleate, triallyl mellitate, allyl esters of acrylic, crotonic, carbonic and phosphonic esters, polyesters containing allyl and maleic groups, and methallyl ethers and esters. As the polymeric compound of the composition there is specified a mixture of polyvinyl chloride with a rubbery chlorinated polyethylene. Also present in the composition may be a non- polymerizable plasticizer, e.g. a phthalate, sebacate, adipate, glycollate or phosphate, and a stabilizer for the vinyl halide polymer, e.g. dibutylfin bis-monobutyl maleate. The curing of the composition may be carried out by heating in the presence of a free radical initiator, e.g. the diphenyl ethane catalysts of Specification 864,675, dicumyl peroxide or di-tert-butyl peroxide, or by irradiation with gamma rays or accelerated electrons. Alternatively: (a) the curing may be carried out in two stages, using irradiation in one stage and heating in the presence of an initiator in the other; or (b) the first stage of cure may be effected by means of ultra-violet light, and the second stage by heating in the presence of an initiator. Specification 905,711 also is referred to.
Patent GB-965443-A (GB)
Title: Improvements in squirrel-cage rotors
IPC: H02K17/16
Filed: 1960-12-23
Abstract: 965,443. Casting composite articles. GENERAL ELECTRIC CO. Dec. 23, 1960 [Jan. 6, 1960], No. 44216/60. Heading B3F. [Also in Division H2] Windings are cast in a rotor core for a dynamo electric machine by pouring molten aluminium into a central bore provided in the core so that it flows outwardly into the conductor slots and mould cavities for the end rings &c., venting air from the conductor slots and removing the mould and excess aluminium from the core when solidification is complete. The aluminium may be forced outwardly by centrifugally rotating the mould and core assembly. The laminations 20, 30, 40, Figs. 1a, 1b, 1c and 2, are so perforated that on assembly they provide not only conductor slots 28 but neck portions 26 which serve as heat storage areas for heat generated during operation of the machine. The slats 36 in the laminations 30 provide vents for air displaced during pouring, the air passing into the bore of the core and escaping past the funnel 70. A vent 68 vents the upper end ring cavity. Alternatively the slots 36 may be dispensed with by making the inner bore cf the laminations 30 on the radius R2, and providing vents by welding spacers 78 to the laminations 40. Alternative flux paths may be provided by the use of other appropriate apertured laminations.
Patent GB-1390888-A (GB)
Title: Partially crystallized glasses and precursors thereof
IPC: C03C3/066
Filed: 1973-09-21
Abstract: 1390888 Dielectric composition E I DU PONT DE NEMOURS & CO 21 Sept 1973 [22 Sept 1972] 44386/73 Heading C1M [Also in Division H1] A composition for printing dielectric layers comprises 1-40% by weight of calcium titanate and 60-99% by weight of a glass frit, which frit comprises by weight 25-40% SiO 2 , 5-15% TiO 2 , 7-12% Al 2 O 3 , 10-30% BaO, 10-26% ZnO, 2-10% CaO, 2-8% B 2 O 3 , 0-2% MgO, and 0-4% Bi 2 O 3 , BaO and ZnO together constituting 30-40 of the said glass frit. The composition may be printed on to prefired metallized ceramic dielectric substrates either dry or in the form of a suspension in an inert liquid vehicle, e.g. a mixture of ethyl cellulose and terpineol. Generally 0À4-9 parts by weight of solids per part by weight of vehicle is used, whilst the composition preferably has an average particle size of 1-15 microns. Generally screen or stencil techniques are employed. After application of the composition the printed substrate is refired, e.g. at 800-950‹C., producing a dielectric layer comprising a glassy matrix having dispersed therein particles of calcium titanate and crystals of celsian (BaAl 2 Si 2 O 8 ) in addition to minor amounts of crystals of sphene (CaTiSiO 5 ) and zinc orthosilicate. The glass used in the specific examples consisted of, in per cent by wt., 30À0% SiO 2 , 10.0% TiO 2 , 4À0% B 2 O 3 , 10À0% Al 2 O 3 , 26À0% BaO, 12À0% ZnO, 6À0% CaO and 2À0% MgO. Comparative examples disclose compositions of (1) the above specified glass and strontium titanate; (2) a glass comprising, in per cent by wt., 56À5% SiO 2 , 4À5% B 2 O 3 , 9À1% Al 2 O 3 , 17À2% PbO, 2À4% Na 2 O, 1À7% K 2 O and 8À6% CaO and calcium titanate; and (3) a glass comprising, in per cent by wt., 27À0% SiO 2 , 12À0% TiO 2 , 11À0% Al 2 O 3 , 8À0% BaO, 32À0% PbO and 10% ZnO and either calcium titanate or strontium titanate.
Patent GB-1253639-A (GB)
Title: Reactor power level sensing device
IPC: G21C17/10
Filed: 1970-09-21
Abstract: 1,253,639. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. 21 Sept., 1970 [7 Oct., 1969], No. 44832/70. Heading G6C. Nuclear reactor power level is measured by the detection of high energy gamma rays against a background of low energy gamma radiation generated by the decay of radio-active products. The gamma radiation is directed in to a probe, filled with pressurized gas, and Compton recoil electrons are produced which travel with velocities greater than that of light in the gas. The Cherenkov radiation resulting from the slowing down of the electrons is detected by a photomultiplier to measure the reactor power level. As the velocity of light in a gas is a function of its density, the gas pressure is adjusted so that only electrons with energies above a threshold have a velocity greater than the velocity of light in the probe, and discrimination is effected against gamma radiation below a specified level. The probe 10, containing methane gas under pressure, is mounted within the reactor 11 and intercepts the gamma rays 13. The Cherenkov radiation 19, generated in the probe, is reflected by the mirrors 22, 23 into the measuring photomultiplier 20.
Patent GB-1153407-A (GB)
Title: Device for Electrically Controlling Resetting and Pump Motors of a Petrol Pump.
IPC: H01H36/00
Filed: 1967-10-03
Abstract: 1,153,407. Control of motors. KIENZLE APPARATE G.m.b.H. 3 Oct., 1967 [4 Oct., 1966], No. 44892/67. Heading H2J. [Also in Division H1] A control system for a motor driving the resetting mechanism of a price computer for a petrol pump, and for controlling the pump motor, comprises a switch actuated when the petrol nozzle is replaced or removed to or from its hook, the resetting motor actuating a pair of cams for controlling the motors, and the resetting operation being uninterrupted by premature operation of the nozzle switch. A switch 15 is actuated to close contacts 15/1, 15/3, when a supply nozzle is removed from a casing, a motor 8 driving a disc 19 for setting the drums of a price computer back to zero. The disc 19 is coupled with gear-wheel 26 adapted to engage a toothed disc 27 mounted on shaft 31 together with wheel 28. The latter is coupled with the motor through pinion 32, worm-wheel 33, and worm 34. Lever 35 is then rocked by cam 29 so that magnet 41 closes reed contacts 43/3, the motor 8 being supplied directly from source 50, 51. The motor 8 continues to operate until the cam 29 opens the contacts 43/3. Just previous to this, cam 30 rocks lever 39 whereby magnet 42 closes contacts 44/3 to energize contactor 49 for operating a pump motor supplying fuel through the nozzle. During the fuelling operation, the price and quantity are registered on the figure drums of the computer, the registered valves being transferred to a ticket printer. The replacement of the nozzle on to its hook closes contacts 15/2, the motor 8 being re-energized to initiate a second halfrevolution of the shaft 31 and the cams 29, 30. The contacts 43/3 are closed by cam 29 for direct connection of the motor to the source until the switch 43 is changed-over. Before the end of the second half-revolution of the shaft 31, the switch 44 is returned to its initial position. The re-setting operation is not interrupted by premature removal from or replacement of the fuelling nozzle on to its hook. In a modification, the resetting drive is transferred to the disc 19 by a spring through a toothed segment and pinion associated with a driving disc and ratchet pawl. A spiral cam disc on the shaft 31 is adapted to stretch the spring and release the toothed segment for turning the disc 19. In a further arrangement, the cams 29, 30, have the same shape, the cam 29 being driven at twice the speed of the other.
Patent GB-1444563-A (GB)
Title: Production of pigmented plastics structural members
IPC: C08K3/00
Filed: 1973-09-25
Abstract: 1444563 Pigmented synthetic resins DYNAMIT NOBEL AG 25 Sept 1973 [29 Sept 1972] 44958/73 Heading C3P A thermoplastic plastics moulding composition contains a pigment which absorbs a major portion of visible light and which causes remission of at least 35% of infra-red radiation incident thereon at substantially all wavelengths in the range 2250 to 750 nm. Polyvinyl chloride is the preferred plastics material and the pigment may be black anthraquinone pigment or black Sb 2 S 3  or Sb 2 S 3 -Sb 2 (SO 4 ) 3 . The material is used for structural members such as window and door frames.
Patent GB-1364920-A (GB)
Title: Explosives
IPC: C06B31/32
Filed: 1971-09-30
Abstract: 1364920 Explosive compositions KINETICS INTERNATIONAL CORP 30 Sept 1971 [8 Oct 1970] 45616/71 Heading C1D [Also in Division F3] An explosive composition sensitive to a No. 6 blasting cap comprises a solid porous absorbent material having an average particle size less than 1000 microns and consisting of an alkali metal, alkaline earth metal or ammonium nitrate or perchlorate, diatomaceous earth, or expanded silica, together with a liquid nitrogenous hydrocarbon derivative insensitive to a No. 6 cap, in an amount less than that required to fill the interstitial volume of the solid component, so that 2-90% by volume of the composition is a gaseous component. Liquid components specified are nitromethane and dinitrotoluene oil. Benzene, toluene, xylene, naphtha, methanol, ethanol, propanol, lower ethers, ketones, aldehydes, acids, and esters, and gasoline fractions may be added as fuels to the liquid component. Before mixing, the components of the explosive may be sealed in flexible containers made of laminates of polyethylene, polypropylene or a polyester with aluminium foil. The composition may be used to detonate a secondary explosive consisting of nitromethane or a mixture of ammonium nitrate and fuel oil.
Patent GB-1068462-A (GB)
Title: Improvements in or relating to refractory bonding mediums
Inventor: HALL DEREK NEIL
IPC: C04B28/34
Filed: 1962-12-04
Abstract: A mortar is obtained by dry-mixing pulverized calcined high alumina material, e.g. bauxite, with pulverized ball clay, dextrin and phosphoric acid, and adding water to give a creamy consistency.