baber/WOPTO huggingface dataset:
Patent GB-1235161-A (GB)
Title: Coating compositions containing polymers having polyvinylnitrile grafts
IPC: C08F291/00
Filed: 1968-05-10
Abstract: 1,235,161. Coatings. E.I. DU PONT DE NEMOURS & CO. 10 May, 1968 [16 May, 1967], No. 22384/68. Heading B2E. [Also in Division C3] Compositions for coating metal substrates such as wires, coils and beverage cans comprising one coated with compositions A) as the principal or only film-forming ingredient, a graft polymer having 1) a backbone component comprising an ethylenically unsaturated polymer and 2) at least 15% by weight of the graft polymer, of a graft component comprising a polymer of an ethylenically unsaturated nitrile and B) an organic liquid in which the graft polymer is dissolved or dispersed. In the Example, an unprimed tin-free steel panel is sprayed with a dispersion in naphtha of polybutadiene grafted with acrylonitrile, air dried and baked at 390‹F.
Patent GB-258288-A (GB)
IPC: F01D5/02
Filed: 1926-09-13
Abstract: 258,288. British Thomson-Houston Co., Ltd., (Assignees of Moss, S. A.). Sept. 11,1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Rotors; blades.- A rotor for high speed turbines as used, for example, in exhaust gas driven turbo - compressors for supercharging internalcombustion engines, comprises a shaft 1 having an integral flange 3, the blade roots 13 being clamped between the grooved flange 3 and a grooved plate 9 by means of rivets 8. The plate 9 is centred on the flange 3 by a projection 10 engaging a recess 5.
Patent GB-1015985-A (GB)
Title: Semiconductor materials and applications thereof
Inventor: HARRIS DARREL MELVIN
IPC: H01L35/22
Filed: 1962-06-12
Abstract: The Specification relates to the use in semiconductor devices of various boron-carbon and boron-carbon-based compositions.  It describes their use in thermo-electric elements, thermistors, point-contact rectifiers, and frequency sensitive capacitors. These compositions contain 6.5 - 17 weight per cent carbon and may contain one or more additional elements selected from all parts of the Periodic Table with the exception of the halogens and the rare gases. Table I in the Specification sets out many additives and the proportions in which they may be used.  The lower limit for the additives is 10-13 weight per cent; the upper limit, which varies slightly with the nature of the additive, is never more than 25 weight per cent for a single additive or more than 48 weight per cent for combinations of additives.  The compositions may be formed by hot-pressing mixtures of the powdered elements.  Decomposition of a mixture of an alkyl boron compound with or without diborane or a boron trihalide will also yield carbon boron mixtures of the required proportions, additional elements such as aluminium, titanium, iron, germanium, and silicon being incorporated by co-deposition of their hydrides or halides.  Specific compositions disclosed are:  (1) 93.49% B, 6.5% C, 0.01% Ge; (2) 89.9% B, 10% C, 0.1% Si; (3) 88.75% B, 11% C, 0.2% Si, 0.05% Ti; (4) 88% B, 10% C, 2% Ce; (5) 86% B, 7% C, 7% Be; (6) 85.6% B, 12% C, 1.5% Ti, 0.9% Si; (7) 85% B, 15% C; and (8) 83% B, 12% C, 5% Ge. Three compositions are disclosed in which the value of the carbon content within the range 6.5 - 17% is not specified but which contain respectively 0.0001 atom per cent Be, 0.00001 atom per cent Si, and 0.001 weight per cent Mn.ALSO:Air or another oxygen source and a stream of liquid white phosphorus are fed into a furnace for the production of phosphoric anhydride. The hot exit gas stream containing the phosphoric anhydride is cooled by passing it over a surface containing thermoelectric elements consisting of carbon-boron or carbon-boron-base compositions containing 6.5-17 wt. per cent carbon.  The furnace described has four thermoelectric units connected in series so that the heat absorbed gives a useful electrical output such as that required for a motor or a resistive load.  Alternatively power may be fed into the thermoelectric elements of the phosphorus burner or similar furnace so that with one direction of current flow the units act as a Peltier cooler and with the opposite direction of current flow the junctions in contact with the gas-stream provide heat to initiate a reaction.
Patent GB-460979-A (GB)
Title: Improvements in or relating to the stiffening of boot or shoe uppers
IPC: A43B23/08
Filed: 1935-08-10
Abstract: A relatively small amount of a modifying substance, such as cellulose derivative, is amalgamated with resinous matter in a coating material for application to the unlined toe end portion of the upper of a sandal or like footwear, to counteract any tendency towards undue brittleness of the resinous stiffening material employed to stiffen such toe.  The resinous material, which may comprise 7\ba1/4\be parts by weight of coumarone resin and 3\ba7/8\be parts by weight of wood resin, preponderates over the cellulose material which latter may consist of 1\ba1/2\be parts by weight of cleaned scrap celluloid kinematograph film.  The inner surface of the toe end of the upper may, before the coating is applied, be treated with a wire brush to give it a napped surface. The coating material, after application to the upper, may be dressed with a light dressing of powdery material such as dental plaster.
Patent GB-598413-A (GB)
Title: Improvements relating to electrolyte level indicators and antisplash devices for electric accumulators
IPC: H01M50/618
Filed: 1945-09-03
Abstract: 598,413. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd., and GRAY, R. Sept. 3, 1945, Nos. 22585 and 28924. [Class 53] To enable the level of the electrolyte in an accumulator to be gauged or seen, a cup d is attached to a slotted skirt b depending from the lid of the accumulator. The bottom of the cup is below the normal level of the electrolyte and is provided with openings or slots e of varying heights or at different levels. The interior of the cup is provided with a device or means for enabling the electrolyte level to be seen when the filling plug is removed. For this purpose the interior wall of the cup above the normal electrolyte level may be of a different colour from the lower part. In the construction shown in Fig. 1, the lower part of the cup is provided with a partition f which slopes from the bottom of the cup to a shoulder g representing the normal electrolyte level. The cup also serves to prevent electrolyte from splashing against the vent plug and protects the separators between the plates from damage by hydrometers and other testing instruments inserted in the electrolyte in the cup. The cup does not entirely close the slots in the skirt b which form passages for the escape of gas. Instead of the partition f the cup may contain a float which can be seen when the filling plug is removed. Fig. 3 shows a further modification in which a float j in the cup is provided with a stem k which projects through openings in the bottom and top of the gas vent plug n. The stem k carries marks o to indicate the normal and lowest allowable levels of the electrolyte.
Patent GB-1177694-A (GB)
Title: Improvements in or Relating to Transistors
Inventor: BUSEN KARL MAX
IPC: H01L29/735
Filed: 1967-05-16
Abstract: 1,177,694. Lateral transistors. SPRAGUE ELECTRIC CO. 16 May, 1967 [17 May, 1966], No. 22661/67. Heading H1K. A lateral transistor is produced in a lightly doped layer over-lying a heavily doped substrate of the same conductivity type by forming emitter and collector regions of the opposite conductivity type extending through the highly doped layer and contacting the substrate. This reduces the injection of carriers from the emitter region into the base region in the direction perpendicular to the major surface of the wafer. As shown, Fig. 2, a PNP lateral transistor is produced by epitaxially depositing a lightly doped N-type layer 12 on a heavily doped N++-type substrate 11, oxidizing the surface, photo-masking and etching, and heating in an atmosphere of B 2 H 6  + 0 2  + N 2  to diffusein P-type emitter region 15 and collector region 16. The diffusion is continued until the emitter region extends to the N++N junction 13. Emitter, collector and base contacts 18, 19, 20 are provided.
Patent GB-813025-A (GB)
Title: Improvements in or relating to phenthiazine derivatives
IPC: C07D279/18
Filed: 1957-07-17
Abstract: The invention comprises 3-dimethylsulphamoylphenothiazine, and its preparation by cyclising a diphenyl sulphide of the formula <FORM:0813025/IV (b)/1> (wherein Hal represents a halogen atom, e.g. chlorine or bromine, and one of X1 and X2 is a dimethylsulphamoyl group and the other is a hydrogen atom) in an anhydrous solvent at elevated temperature in the presence of an acidbinding agent.  Under some conditions the reaction may be accelerated by a dehydrohalogenation catalyst, e.g. copper powder.  In an example, 2 - bromo - 21 - amino - 41 - dimethylsulphamoyldiphenyl sulphide is cyclised by refluxing in dimethylformamide in the presence of dry potassium carbonate and copper powder, and the 3-dimethylsulphamoyl phenothiazine so formed is purified by chromatography over basic alumina.  2 - Bromo - 21 - amino - 41 - dimethylsulphamoyldiphenyl sulphide is obtained by the reduction with iron and acetic acid of 2-bromo-21-nitro - 41 - dimethylsulphamoyldiphenyl sulphide, itself obtained by decomposing, in the presence of cuprous bromide, the diazonium salt of 2-amino-21-nitro-41-dimethylsulphamoyldiphenyl sulphide, prepared by condensing 2-aminothiophenol with 1-dimethylsulphamoyl-3-nitro-4-chlorobenzene.
Patent GB-677910-A (GB)
Title: Improvements in or connected with tracks for toy vehicles
IPC: A63H18/02
Filed: 1949-09-02
Abstract: 677,910. Tracks for toy vehicles. ULLMANN, P. Nov. 30, 1950 [Sept. 2, 1949], No. 22774/49. Class 132 (iii). A channel section track for toy vehicles is of figure 8 form with additional straight outer portions 2, 2a. Two pairs of L-section switch blades 5, 6 and 15, 16 are pivoted at their ends nearest the centre of the track and each pair is connected by a link 8. When a clockwork driven vehicle 11 having downwardly projecting side pins 13, 13a travels along the track portion 2 from the right, the pin 13 strikes the bulge of blade 15 causing the two free ends of blades 15, 16 to move downwardly. As the vehicle rounds the lower end of portion 2c, the pin 1,3 passes inside the wall of blade 16 and the vehicle is guided into diagonal portion 2e. Pin 13a then passes inside the wall of blade 5, the positions of blades 5, 6 remaining unchanged. After passing round portion 2b, the vehicle enters straight portion 2a and then passes round portion 2c, the pin Ba causing blades 16 and 15 to move back to their original positions. The vehicle then passes onto diagonal 2d due to the action of blade 15 and, in passing blade 6, the blade is moved downwardly by pin 13. Blade 5, being also in its lower posi-, tion, allows the vehicle to pass onto straight portion 2 and the cycle is repeated.
Patent GB-868807-A (GB)
Title: Chlorination of zirconia-silica compounds
Inventor: EVANS ARTHUR WALLACE
IPC: C22B1/08
Filed: 1958-07-16
Abstract: In the production of zirconium tetrachloride by the reaction of chlorine with a fluidised bed of a zirconia-silica compound such as zircon, in the presence of a reducing agent, preferably carbon, a zirconium-containing additive which reacts highly exothermically with chlorine is fed to the bed to maintain the required high temperature thereof.  The additive is added in amount less than and preferably 10-80% by weight of, the zirconiasilica compound employed; suitable additives are zirconium cyanonitride, nitride or carbide or impure zirconium metal such as dross, cuttings or turnings.  Zircon of particle size from 76-250 microns may be employed in admixture with carbon, preferably petroleum coke, in a proportion of 4 to 1.  The reactor employed is provided with a perforated base plate across which pressure drop is 1/2 to 50 times the pressure drop across the bed.  Zirconium and silicon tetrachlorides are formed and condensed in separate chambers. Specifications 794,666 and 813,489 are referred to.
Patent GB-640468-A (GB)
Title: Improvements in copolymers of dipropenyl esters
IPC: C08F22/28
Filed: 1947-08-18
Abstract: Soluble unsaturated resins capable of ultimate conversion to a solvent and heat resistant state are prepared by copolymerizing a mixture of a dipropenyl ester of an alpha-beta unsaturated dicarboxylic acid and an omega trichloralkene.  The preferred esters are those of acids having the general formula Cn H2n-2(COOH)2, where n is from 2 to 6 and include allyl, 2-alkyl- and 2-chloro-allyl esters of maleic, fumaric, itaconic, citraconic and mesaconic acids. Esters of ethyl-fumaric, ethyl-maleic, propyl-fumaric and a -hydromuconic acids are also mentioned.  The preferred omega-trichlor-alkenes are those also containing a terminal ethylene linkage, e.g. 3,3,3-trichloropropene-1, 4,4,4-trichlorobutene-1 and 4,4,4 - trichloro - 2 - methylbutene - 1.  Polymerization is effected at 25-120 DEG  C. in the presence of a peroxidic catalyst such as benzoyl peroxide, acetyl benzoyl peroxide, tert.-butyl hydroperoxide, succinyl peroxide and tert.-butyl perbenzoate.  The products which are soluble in acetone, benzene, chloroform, carbon tetrachloride, ethyl acetate and xylene may be purified by repeated solution in a solvent and precipitation with a non-solvent, e.g. n-hexane, or may be dissolved without isolation. Dyes, pigments, fillers, plasticizers and resins may be incorporated before curing the copolymers by the application of heat.  The copolymers may be interpolymerized with ethylenic compounds, e.g. butyl methacrylate, allyl acrylate, vinyl acetate and styrene, by dissolving them in these monomers and heating in the presence of a catalyst to the infusible state.  An example is also given of dissolving the copolymer in diethyl fumarate and curing in a mould.  The copolymers which are non-dissolving and fire-retardant, may be cast and moulded into rods, blocks and sheets or used for impregnating or coating furnishings.
Patent GB-189245-A (GB)
Title: Improvements in feeding appliances for thrashing machines
IPC: A01F12/12
Filed: 1921-08-31
Abstract: 189,245. Leonard, W. C. Aug. 31, 1921. Thrashing-machines.-Wheat is fed from a conveyer 47 to a thrashing-machine between a pivoted shoot 48 and a moving endless guide-belt 55, the distance between these members being regulated by the weight of the wheat which depresses the shoot against a spring 53. From there the wheat is led by a rotating cylinder 57 on to a moving endless belt 65, which carries it to the main thrashing cylinder (not shown). The shoot, upper guide member, and rotating cylinder, may be duplicated as shown in Fig. 2. A stripping wheel 60 is provided to remove any wheat carried round by the cylinders 56, 57. The free end of the shoot is attached to a flexible wall 62 secured at its lower end to a rigid board 61 which forms an extension of the housing 64 for the conveyer 65. The guides 55 may be driven at varying speeds by moving an eccentricallypivoted lever 80, Fig. 3, so that friction wheels 70, mounted on shafts 71 carrying worms 72 for engagement with worm wheels 74 secured to the ends of the driving shafts 76 of the belts 55, are moved into closer or slacker contact with friction discs 73 carried at the ends of the shafts 58, 58<1> on which the guide cylinders 56, 57 are mounted.
Patent GB-744510-A (GB)
Title: Improvements in chairs and like articles of furniture
IPC: A47C7/32
Filed: 1953-08-21
Abstract: 744,510. Seats. CHADWICK, E. E. Aug. 20, 1954 [Aug. 21, 1953], No. 23101 /53. Classes 52(2) and 52(4). The frame of a spring-upholstered chair has curved side members 1 of bent wood or resin bonded laminated wood braced apart by stays 4, 5 and comprising a base portion la and a rear portion 1b the great parts of which lie below the seat surface and behind the back surface of the chair respectively and have their ends 2, 3 bent upwardly to support the spring assemblies which consist of tension springs 6 connected by chains 7. Specification 742,799 is referred to.
Patent GB-979644-A (GB)
Title: Improvements in and relating to electric signal apparatus
IPC: H04S1/00
Filed: 1961-06-27
Abstract: 979,644. Reverberation systems; electromechanical delay lines. PHILCO CORPORATION. June 27, 1961 [June 27, 1960], No. 23201/61. Headings H3U, H4J and H4R. In a sterophonic reproducing system a reverberation effect is produced by feeding a common signal derived from the two channels of the apparatus through a delay device and mixing the delayed signal with each of the two normal channel signals feeding the reproducing means. A mis - matched torsional delay line device is described which produces multiple echoes. Circuit details, Fig. 1. The two channel inputs A and B are fed respectively to valves 14A and 14B from each of which two signals are developed, i.e. at anode and cathode. The anode signals are mixed in a resistive adding network and fed to valve 46 the anode of which feeds the delay device 48, the delayed output is fed via an RC filter to amplifier valve 86 and attenuators 102 and 104, the delayed signal from the slider of attenuator 104 is then mixed with the normal channel signals by feeding it to the grids of valves 22A and 22B, the cathodes of which are fed with the respective channel signals from the cathodes of valves 14A and 14B. The anodes of the valves 22A and 22B are fed to the respective reproducing systems. Delay device, Fig. 2. Signals fed to coil 80 causes rotation of the diametrically magnetized rotors 68 and 74 which are mounted at the ends of springs 60 and 62. The rotational displacement travels down the springs and causes rotation of the magnetized rotors 72 and 76 and hence generation of corresponding signals in coil 84. The springs are attached at each end to rigid supports 64 and 66 which represent mismatched terminations and cause multiple reflections.
Patent GB-406283-A (GB)
Title: Improvements in and relating to processes for working-up crude petroleums and petroleum derivatives
IPC: C10C3/02
Filed: 1932-08-18
Abstract: Lubricating and other oils, asphalts, and other products are obtained from crude petroleum or its derivatives by mixing with one or more animal and/or vegetable oils or fats, heating with sulphuric acid or its equivalent to above 120 DEG  C., and distilling. The process is especially suited for the treatment of petroleum oils or residues containing sulphur and bitumen.  Varied plastic or elastic residues are obtained by use of different fatty oils and of initial materials of different sulphur and bitumen content. Petroleum derivatives specified are distillation and refinery products and residues, e.g. topped oils, cracking residues, hydrogenation residues, and residues from the refining of petroleum by solvents.  The viscosity may first be reduced by addition of gas oil or other fluid hydrocarbon.  The acid may be concentrated, or diluted to about 70 per cent; there may be used waste acids, e.g. oil-refining acid sludges or acids extracted therefrom, sulpho acids, sulphuric acid esters, or sodium bisulphate or other acid sulphate.  Fatty oils specified are rape seed, castor, palm, soya bean, and fish oils, and blubber. Preferably the fatty oils at 150--220 DEG  C. are added to a mixture of the acid and petroleum preheated to 40--80 DEG  C., intimately mixed, and heated slowly.  The sulphur dioxide evolved is collected separately and liquefied, converted into sulphuric acid, or otherwise worked up. When lubricating oils with a content of animal and/or vegetable oils are required, excess of fatty oil is added to the petroleum treated, and preferably non-drying vegetable oils with B.P.s. corresponding with those of the petroleum distilled over are used.
Patent GB-1004071-A (GB)
Title: Substituted ª‰-phenethylamines and a process for the production thereof
IPC: C07D295/12
Filed: 1962-06-18
Abstract: The invention comprises amines of the general formula <FORM:1004071/C2/1> (wherein R1, R2 and R3 represent halogen atoms or C1- 6 alkyl or alkoxy groups, or at most two of them may represent hydrogen atoms, R4 represents a hydrogen atom or a C1- 6 alkyl group, R5 and R6 represent C1- 6 alkyl groups or together, with the nitrogen atom, form a heterocyclic ring, and A represents a C2- 6 alkylene group) and their non-toxic pharmaceutically acceptable acid addition salts, and the preparation of the amines by the last step, alone or in combination with one or both of the preceding steps, of the following sequence: (a) treating a compound of the general formula <FORM:1004071/C2/2> with a C2- 6 aliphatic haloacyl halide, (b) treating the resulting halo-amide with an amine R5.NH.R6, and (c) reducing the carbonyl group in the resulting amino-amide by means of a metal hydride reducing agent.  Pharmaceutical compositions.-The compounds of the invention possess pharmacological activity on the central nervous system and the cardio-vascular system and as diuretics, and may be formulated with pharmaceutically acceptable diluents and carriers into such dosage forms as tablets, capsules, solutions, suspensions or suppositories.
Patent GB-490096-A (GB)
Title: Closures for ink bottles
IPC: B43L25/00
Filed: 1937-08-26
Abstract: 490,096. Ink - bottles ; stoppers. NAMIKI, R. Aug. 26, 1937, No. 23405. [Class 146 (iii)] [Also in Group XVII] A closure for ink-bottles, adapted to be turned upside down with the nib end of a fountain pen extending through the passage in the closure without a leakage of ink, comprises a cap 1 adapted to be screwed to the mouth of the bottle 2, a mouthpiece 3 screwed into or integral with the cap and extending through the central opening in the cap, a valve 4 with a number of radial flaps 41 held on to the bottom of the mouthpiece by a screw collar 5, a plug 8 to be screwed into the mouthpiece, and a sheet packing 7 co-operating with the mouthpiece and the neck of the bottle to prevent leakage of ink. The plug 8 normally seats on the shoulder 3<111> of the mouthpiece. When it is removed and the fountain pen screwed into its place the nib of the pen pushes aside the flaps 4<1> formed by the cross cuts 6 in the sheet rubber valve 4. The invention is adapted to be used with a fountain pen according to Specification 488,541.
Patent GB-755521-A (GB)
Title: Improvements in or relating to derivatives of morphine
Inventor: RUFFELL GRAHAM KEITH
IPC: C07D489/02
Filed: 1953-08-25
Abstract: The invention comprises N-n-propyl-nor-morphine and its acid addition salts.  The compound is made from nor-morphine and a propyl halide, e.g. the iodide.  An example is given of the preparation of the free base and its hydrobromide, hydriodide, sulphate and acid oxalate.
Patent GB-1395743-A (GB)
Title: Conversion systems
IPC: H02M5/27
Filed: 1972-05-18
Abstract: 1395743 Frequency changers: control of A.C. motors INTERNATIONAL STANDARD ELECTRIC CORP 18 May 1972 [26 May 1971] 23437/72 Headings H2F and H2J A circuit for reducing the frequency of a A.C. supply comprises for the or each phase of the output a first bridge of two diodes D1, D2 and two controlled rectifiers T1, T2 for feeding a first portion UX of a load and a further bridge comprising the said diodes D1, D2 and two further controlled rectifiers T3, T4 for feeding a further portion U<SP>1</SP>, X<SP>1</SP> of the load. The controlled rectifiers are triggered by means which determine the number of half cycles (or part half cycles) of similar polarity to feed the load portions. The load portions UX &c. may be windings of a squirrel-cage motor. In Fig. 10 (not shown) four pairs of thyristors are used in conjunction with a common pair of diodes D1, D2 so as to feed four load portions with a twophase supply derived by reducing the frequency of the single phase input. Fig. 12 (not shown) depicts a block diagram of a control system in which an adjustable frequency generator oprates at twice the required frequency and feeds flip-flops and gates so as to provide appropriate triggering pulses for the respective thyristors. The thyristors may be phase-controlled (Fig. 13, not shown) so that the effective output is proportional to frequency. The motor may be stopped by switching off the controlling frequency generator or reversed by reversal of phase sequence.