baber/WOPTO huggingface dataset:
Patent GB-781015-A (GB)
Title: Improvements in or relating to voltage stabilised supply systems
Inventor: DONALDSON ROBERT BERTRAM
IPC: G05F1/52
Filed: 1955-03-31
Abstract: 781,015. Automatic voltage control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 24, 1955 [March 31, 1955], No. 9387/55. Class 38 (4). In an automatic voltage stabilizer of the kind in which a controlled valve is in series with a resistor across the supply and the output is taken across the resistor, the valve is a tetrode and is controlled by its screen grid. The supply, with the positive line earthed, is applied at 1, 2 across the resistor 3 and the controlled tetrode 4 which has its control grid strapped to the cathode. The stabilized output is obtained from terminals 1 and 5 across resistor 3. This voltage is applied to the cathode of a D.C. amplifier 7 in opposition to a reference voltage (not disclosed) said to be connected to the grid of the amplifier 7. The amplified error signal is applied via cathode follower 9 to the screen grid of the valve 4. The cathode load of the valve 9 includes a valve 10 and neon 11 to provide the necessary fixed drop in standing voltage between stages without loss of gain.
Patent GB-853726-A (GB)
Title: Process for the production of synthetic textile fibres
IPC: D01F6/08
Filed: 1958-03-25
Abstract: Artificial fibres are made by dry-spinning solutions containing polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate containing 70-98% by weight of polyvinyl chloride, or terpolymers of vjnyl chloride, vinyl acetate and vinyl alcohol containing 70-98% by weight of polyvinyl chloride, and 5-10% (based on the weight of the polymers) or an organic isocyanate, dissolved in a mixture of carbon disulphide and acetone.  The resulting fibres are stretched while passing them through a water bath at an elevated temperature, then treated at 80-150 DEG C. with an amine which is either undiluted or in solution in water or an organic solvent, and subsequently heated to 150-200 DEG C., the treatment with an amine and subsequent heating being effected while maintaining the fibres under tension.  The amine may have the general formula <FORM:0853726/IV(a)/1> in which one or two of the letters X, Y and Z may represent a hydrogen atom and the other one or two letters, or all three letters, may each represent an alkyl, hydroxyalkyl, alkoxyalkyl, amino-alkyl, aryl, arylalkyl, furfuryl, pyridinic, quinolic or 4-morpholinic radical or another heterocyclic radical.  The amine preferably contains more than one amino group in the molecule, the amino groups having at least one hydrogen atom.  The preferred amine is hexamethylene diamine used in a 10-20% aqueous solution. Preferred isocyanates are hexamethylene-diisocyanate and toluene diisocyanate.  The water stretch bath may be at 100 DEG C. and the stretch ratio may be 4:1 to 4,2:1.  In an example a solution of 1000 grams of polyvinylchloride of molecular weight about 90,000 and 85 grams of hexamethylene diisocyanate in a mixture of 1540 grams of carbon disulphide and 980 grams of acetone is dry-spun and the filaments are stretched in water at 100 DEG C. with a ratio of 4,2:1, treated for 20 minutes in a 10% aqueous solution of hexamethylene diamine at 100 DEG C. while maintaining them under tension and finally maintained at 180 DEG C. for 3 minutes at constant length.  Fibres produced according to the invention are improved with respect to resistance to shrinkage on heating, resistance to organic solvents used in dry cleaning and dyeability with acid wool dyes.
Patent GB-1002973-A (GB)
Title: Improvements in or relating to the production of adipic acid
IPC: C07C51/31
Filed: 1962-03-13
Abstract: In a process for the preparation of adipic acid by reacting cyclohexane in a liquid phase with molecular oxygen in a first oxidation zone, to produce cyclohexanone, cyclohexanol, and other oxygenated products, removing unreacted cyclohexane, reacting the residual mixture in solution in a saturated monocarboxylic acid (2-6 carbon atoms) e.g. acetic acid with molecular oxygen in a second oxidation zone to produce an adipic acid solution from which the adipic acid is crystallized, the adipic acid crystals are washed with water or a saturated monocarboxylic acid (2-6 C), e.g. acetic acid or a mixture thereof, the wash liquor separated and concentrated to an adipic acid and impurities concentration not above that of the mother liquor and the concentrated wash liquor recycled to a further quantity of solution containing adipic acid obtained from the second oxidation zone prior to the recovery by crystallization of the adipic acid therefrom.  The first oxidation stage may be at 125-175 DEG  C. and 55-500 p.s.i.g. and the second at 60-105 DEG  C. and a pressure of from atmospheric to 1000 p.s.i.g. with a manganese or manganese and copper catalyst.
Patent GB-928767-A (GB)
Title: Disazo pigments containing benzopyrone residues and their manufacture and use
IPC: C09B43/32
Filed: 1961-03-15
Abstract: Polyvinyl compounds, e.g. polyvinyl chloride and polyvinyl acetate are coloured in greenish-yellow to orange shades with disazo pigment dyes of formula <FORM:0928767/IV(a)/1> <FORM:0928767/IV(a)/2> wherein A1, A1, B1 and B1 are aryl residues and the benzene nuclei C may contain further substituents.  In an example a mixture of polyvinyl chloride, dioctyl phthalate and the dye of formula <FORM:0928767/IV(a)/3> is rolled to give an orange foil.ALSO:The invention comprises disazo dyes free from water-solubilizing groups and of formula <FORM:0928767/IV(a)/1> or <FORM:0928767/IV(a)/2> wherein A1, A1, B1 and B1 are aryl residues and the benzene nuclei C may contain further substituents.  The dyes are prepared by (a) condensing 1 mole of an aryl diamine free from water-solubilizing groups with 2 moles of a halide of a monocarboxylic acid of formula <FORM:0928767/IV(a)/3> or (b) condensing 2 mols. of an aryl monoamine free from water-solubilizing groups with 1 mole of a dihalide of a dicarboxylic acid of formula <FORM:0928767/IV(a)/4> The dyes may be used to colour and print paper, textile fibres, natural and synthetic resins and plastics, particularly polyvinyl compounds (see Group IV(a)) in greenish-yellow to orange shades. The intermediate azocarboxylic acids of Formula (3) are prepared by coupling the diazo compound of an arylamine free from water-solubilizing groups with an alkali metal salt of a dicarboxylic acid of formula <FORM:0928767/IV(a)/5> and lactonizing the azo-dicarboxylic acid formed by heating with a strong acid, e.g. hydrochloric acid.  The disazo dicarboxylic acids of Formula (4) are prepared by coupling a tetrazotized aryl diamine free from water-solubilizing groups with a dicarboxylic acid of Formula (5) and lactonizing as specified above. The dicarboxylic acid halides are prepared in known manner by treating the acids in an inert solvent with a halogenating agent such as phosphorus tri- or penta-chloride or thionyl chloride, e.g. as described in Specification 820,444.  In examples: (1) coumarin-3-carboxylic acid is hydrolysed in aqueous sodium hydroxide solution, a diazo compound from 4-chloro-3-aminotoluene is added, the precipitated azo compound is heated with concentrated hydrochloric acid to give an azo dye of Formula (3), which is heated in o-dichlorobenzene to which thionyl chloride is added, the resultant acid chloride is isolated and reacted with 2-methyl-5-methoxy-1,4-phenylenediamine in o-dichlorobenzene to give a dye of Formula (1); (2) the disazo dye 3,31-dichlorobenzidine ??? hydrolysate of coumarin-3-carboxylic acid is lactonized, converted into the acid chloride and reacted with aniline to give a dye of Formula (2). Many further examples and alternative reactants are specified.
Patent GB-884732-A (GB)
Title: Improved grafted copolymer compositions
IPC: C08F291/18
Filed: 1958-03-25
Abstract: A composition comprises a graft copolymer of at least one polymer with ethylene, and a plasticizer in an amount sufficient to impart to the composition tensile properties characteristic of a high molecular weight polyethylene, the polymer or polymers being one or more homopolymer or copolymer, such as polyvinyl chloride, polyvinyl acetate or polyisobutylene, that has a value of Young's modulus higher than that typical of a high molecular weight polyethylene and is capable of forming graft copolymers with ethylene.  The plasticizer may be dioctyl or dibutyl phthalate, and may be added before, during or after graft polymerization.  Specification 884,731 is referred to.
Patent GB-284500-A (GB)
Title: Improvements relating to motor tricycles
IPC: B62K7/04
Filed: 1927-04-07
Abstract: 284,500. Norris, H.G. April 7, 1927. Auxiliary hand and foot propelling mechanism. -In a bicycle or tricar, the pedal spindle 3 drives the intermediate spindle 4 through a free-wheel sprocket 5, a sprocket 7 fixed to the spindle 4 being adapted to drive or be driven by the sprocket 11 fixed to the engine crank shaft 8, while the sprocket 6 drives the chain wheel 13 on the road wheel either directly or through the medium of the connected sprockets 9, 10 mounted freely on the crank shaft 8.
Patent GB-570107-A (GB)
Title: Improvements in heteropolar inductor alternators
IPC: H02K19/24
Filed: 1943-06-17
Abstract: 570,107. Inductor alternators. BRITISH THOMSON-HOUSTON CO., Ltd., and WALKER, J. H. June 17, 1943, No. 9753. [Class 35] In an inductor-alternator with unsubdivided stator polepieces and with an A.C. winding in each slot, the exciting winding or windings is or are disposed in alternate slots so that the number of poles is half the number of stator polepieces and the number of polepieces or teeth in the rotor is three times the number of stator poles. A two-pole machine is shown with four stator polepieces 6 embraced by A.C. coils 4, 3 being the exciting winding. Specification 534,784 is referred to.
Patent GB-589037-A (GB)
Title: Improvements relating to electric lighting systems
IPC: H05B41/34
Filed: 1945-06-15
Abstract: 589,037. Kinematograph projectors. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. June 15, 1945, No. 9785/44. [Class 97 (i)] [Also in Groups XXXV and XL] An electric discharge lamp L (see Group XL) for use in a kinematograph projector is metallically connected across a capacitance C2 charged from a direct current source through a resistance R3 to a peak voltage less than the fundamental breakdown voltage of the lamp ; rapidly recurrent impulses of high voltage (not less than 24 per second and preferably 50 or even 100 per second) are applied to the lamp, e.g. from a spark coil S whereby breakdown occurs at each impulse and the capacitance is discharged across the lamp producing a high current density discharge of short duration. The duration of current flow may be not more than one per cent of the duration of operation, the peak current during an impulse being not less than one hundred times that which the lamp could carry on steady load. The lamp may be cooled by water or air-blast particularly when near the condenser of the projector. In the arrangement shown one end. of the secondary of the coil S is wrapped round the tube L. Periodic excitation of the primary is effected bydischarge of a condenser C1 through the plate circuit of a gas valve TH the condenser being charged from a voltage source through a resistance R2 ; the rate of flashing may be controlled by the values of the resistance and the condenser or by controlling the application of bias to the grid of the valve, e.g. the intermittent feed of the projector may be arranged periodically to short-circuit a resistance across the terminals e, f. Alternatively control may be exercised photo-electrically from a track on the film. Specifications 569,267, 579,686 and 586,685, [all in Group XL], are referred to.
Patent GB-1095874-A (GB)
Title: Improvements in or relating to hay tedders
IPC: A01D89/00
Filed: 1965-04-13
Abstract: 1,095,874. Haymaking machines. TEXAS INDUSTRIES Inc. April 13, 1965 [April 23, 1964; Oct. 16, 1964], No. 9787/67. Divided out of 1,095,873. Heading A1F. A haymaking machine comprises a horizontal transverse pick-up rotor 107 which feeds picked-up crop to an auger 116 extending parallel to the pick-up rotor, the conveyer being surrounded by a casing 106 including a series of arcuate doors 119-122 which can be opened to permit rearward scattering of the crop over a wide area or closed to cause the auger to convey the crop laterally and discharge it in a narrow ribbon. The pick-up rotor comprises a pair of co-axial tinecarrying tubes partly surrounded by a series of fixed plates between which the tines pass to discharge the crop on to an arcuate plate 117 from which it is picked up by the auger 116 which has a series of triangular blades 148 arranged along it. In a modification, instead of blades 148, the auger is provided with axially-extending tine-carrying bars. The bars are spring- loaded and can be arranged so that the tines protrude from the auger-flights (i.e. for rearward scattering) or lie close to the auger-core, when the auger is used for lateral conveyance of crop. The Specification also includes the subject-matter of Specification 1,095,875.
Patent GB-1300248-A (GB)
Title: Light activated semiconductor device
IPC: H01L23/051
Filed: 1970-03-02
Abstract: 1300248 Semi-conductor devices WESTINGHOUSE ELECTRIC CORP 2 March 1970 [1 April 1969] 9893/70 Heading H1K Light is directed on to a light-sensitive semiconductor element hermetically sealed within a housing through an aperture 76 in a stud of the base 116 of the housing. This permits the element to be mounted in a compressed, non- bonded relationship with the device terminals, e.g. as shown in Fig. 2 for a light-activated thyristor. The aperture 76 may be sealed by a transparent epoxy or glass layer or by a transparent silicon oxide coating over the lightreceiving portion 74 of the element. A laser diode may be coupled to the element through a light pipe in the aperture 76. A prior art Si device is described in which the light reaches the element through a hollow conductor extending through the cap portion of the housing. Diodes and transistors are also referred to.
Patent GB-1133809-A (GB)
Title: Improvements in or relating to side delivery rakes
IPC: A01D78/00
Filed: 1967-03-02
Abstract: 1,133,809. Haymaking machines. ALLIS-CHALMERS MFG. CO. 2 March, 1967 [7 March, 1966], No. 9902/67. Heading A1F. A side-delivery rake comprises a main frame 10 mounted on ground-wheels 19, 21, a sub-frame 36 supported from the main frame and rotatably carrying a raking reel 48, the reel being driven from an axle 18 of the ground wheels by an endless belt 57 engaging pulleys 24, 49 carried, respectively by the axle 18 and reel 48, the means for supporting the rear end of the reel including an adjustable turnbuckle 34 which can be slackened to enable the belt to be crossed in order to reverse the direction of rotation of the reel. The main frame 10 is substantially V-shaped in plan and has legs 11, 12 united forwardly in a clevis 13 and carrying the ground-wheels 19, 21 at their rear ends, the legs being arched to pass over the sub-frame. The latter is flexibly suspended at its front end from the main frame and also includes a V-shaped member 37, 38 secured to a rigid rake-basket 39 carrying bearings 43, 44 for the reel. The rear end of the rake-basket is pivotally attached to the main framemember 11 by the turnbuckle 34, idler pulleys 29, 31 being mounted on the framemember adjacent to the pivot to carry the belt 57. The turnbuckle can be adjusted sufficiently for the belt to be released from the pulley 49 and crossed, after which the turnbuckfe is re-tightened.
Patent GB-235120-A (GB)
Title: Improvements in groat cutting machines
IPC: B02C9/02
Filed: 1924-09-23
Abstract: 235,120. Fitzpatrick, H. D., (Robin Hood Mills, Ltd.). Sept. 23, 1924. Drawings to Specification. Mills and apparatus.-Relates to a groatcutting machine of the kind comprising a perforated rotary cylinder and a number of cooperating knives, and consists in the use of a large number of closely-set knives, each knife in width being approximately one-half the thickness of the cylinder wall and the cutting-edges of the knives being spaced apart a distance less than the thickness of the cylinder wall. The knives are supported by the arc-shaped support described in Specification 235,119. Specification 235,062 is referred to.
Patent GB-477884-A (GB)
Title: Improvements in closures for containers
IPC: B65D39/04
Filed: 1936-04-03
Abstract: 477,884. Cartridge-clips. SIMSINOVICI, M. April 3, 1936, No. 9930. Convention date, April 4, 1935. [Class 9 (i)] [Also in Groups XVII and IX] A cartridge - clip 17 is secured in its container 19 by means of depressions or cells 18 which engage the walls of the container and by their suction effect secure the clip 17 rigidly in place.
Patent GB-1129062-A (GB)
Title: Fuel element handling equipment for a nuclear reactor
Inventor: GROUTHIER JEAN
IPC: G21C19/14
Filed: 1967-03-02
Abstract: 1,129,062. Reciprocating conveyers; grabs. COMMISSARIAT A L'ENERGIE ATOMIQUE 2 March, 1967 [7 April, 1966], No. 9933/67. Headings B8A and B8H. [Also in Division G6] A charging machine for a nuclear reactor having horizontal channels comprises a magazine 1 having a spiral-shaped duct 25 receiving a chain 2. The chain is composed of identical hollow links 5 pivotally interconnected by spindles 23 carrying guide rollers 24, the end link 6 being attached to a grab 7 which may be advanced by the chain through a shield wall 20 of the reactor to engage a fuel element in a reactor channel. The chain is driven forward or in reverse by a pair of screws 3, 4 each having a double thread forming a helical channel for engaging rollers 28 carried by spindles 26 on the links 5. The screws 3, 4 are rotated by worms 39, 40 engaging gear-wheels (Fig. 9, not shown) coaxial with the screws, the worms being driven by a pulley 43 rotated by a motor 44 through a belt. The magazine 1 is carried by a chassis 18 movable over the floor 20 in wheels 19 to align the grab 7 with the selected channel, a telescopic portion 14 of the magazine duct 25 being advanced through the wall 20 by a motor 15. The grab 7 is electromagnetically controlled through a cable 8 passing through the chain 2 and winding on to a drum 9.
Patent GB-215924-A (GB)
Title: Improvements in and relating to the gas-containers of airships
IPC: B64B1/62
Filed: 1923-04-12
Abstract: 215,924. Naatz, H., and Lustuv Luftfahrtechnische Studien - und Verwertungs Ges. April 12, 1923. Aerostats.-The envelope of an airship is subdivided by bulkheads of cylindrical form to take end stresses when the airship is inclined. The Figure shows an envelope divided by vertical fabric cylindrical bulkheads d - - g of the same diameter as the envelope. The spaces 2, 4 are kept as small as possible, and valves k, l of fabric may be provided in the bulkheads to permit gas to flow only to their concave sides. The envelope may, in addition, have one or more longitudinal vertical partitions. In rigid airships, the edges of the bulkheads are secured to the framework.
Patent GB-560900-A (GB)
Title: Improvements in electric fires
IPC: F24C7/08
Filed: 1942-07-17
Abstract: 560,900. Electric radiators. ENGLISH ELECTRIC CO., Ltd., FRASER, J. A., and HUMM, R. W. July 17, 1942, No. 9974. [Class 39 (iii)] An electric radiator employs U-shaped, low temperature heating elements 5 of the type in which a metal sheath encloses a heating wire embedded in refractory insulation or wound on an insulator and spaced by air from the sheath. The ends 5a of the elements pass through the frame 2 to sub-terminals 6. U-shaped rails 7 are spanned by notched plates 8 which support the elements 5, and removable front bars 9 are provided so that the elements may be detached for replacement. The elements may alternatively be arranged vertically, or several bars combined to form a sinuous resistance, Fig. 4 (not shown). A polished sheet metal reflector 10a behind the elements may be illuminated by a red lamp 11. A transparent panel 1 of heatresisting glass may be arranged, as described in Specification 560,921 behind the elements, or the panel may be a reflector. Apertures 2b may be provided in the frame 2a to allow air to pass to the back of the panel. Convection of air may be assisted by vertical apertures in the guard rails. The number of elements in circuit is controlled by switches 13, and thermostatic control may also be provided.
Patent GB-633952-A (GB)
Title: Improvements in or relating to processes of producing agglomerated sodium hexametaphosphate and the improved product resulting therefrom
IPC: C01B25/445
Filed: 1947-04-15
Abstract: Free flowing granular sodium hexametaphosphate for use as a water softener is produced by "humidifying" the finely-divided phosphate particles mixed, if desired, with an alkalinity adjusting agent, agitating to form agglomerates, screening to the desired size and rapidly removing moisture by drying at a temperature between 40 DEG and 90 DEG  C. at an absolute pressure of 8-10 mm. of mercury. "Humidifying" includes the addition of water by a spray, humidified air, or by hydrated salts.  Suitable alkalinity adjusting agents are soda ash, sodium sulphate, bisulphate, metasilicate and pyrophosphate, trisodium phosphate, soaps, sulphonated or sulphated and other non-saponaceous detergents, or mixtures of these, added up to 10 per cent by weight of sodium hexametaphosphate.  A pH value between 7.5 and 8.5 in a 1 per cent solution in water is referred to.ALSO:Free flowing granular sodium hexametaphosphate for use as a water softener is produced by "humidifying" the finely divided phosphate particles mixed if desired with an alkalinity adjusting agent, agitating to form agglomerates, screening to the desired size and rapidly removing moisture by vacuum drying at a temperature between 40 DEG C and 90 DEG C at an absolute pressure of 8-10 mm. of mercury.  "Humidifying" includes the addition of water by a spray, humidified air, or by hydrated salts.  Suitable alkalinity adjusting agents are soda ash, sodium sulphate, bisulphate, metasilicate and pyrophosphate, trisodium phosphate, soaps, sulphonated, sulphated or other non saponaceous detergents, or mixtures of these, added up to 10 per cent by weight of sodium hexametaphosphate.  A pH value of 7.5-8.5 in a 1 per cent solution in water is referred to.
Patent HU-T33970-A (HU)
Title: Process for producing compozitions well and guickly solubla in water from slowly and wrong soluble active agents containing basic nitrogen atom
Inventor: HORTOBAGYI GYOEZOE
IPC: A61K47/00
Filed: 1983-04-08
Abstract: Easily and quickly water soluble pharmaceutical prepns. are obtd. from pharmaceutical cpds. contg. a basic nitrogen atom, which by themselves dissolve only slowly and with difficulty in water, by preparing an acidified aq. soln. of the basic cpds. with an excess of an easily soluble adjuvant and a pharmaceutically acceptable acid at a pH of 1-2, spray drying the acid soln. and converting the resulting mixt. of the acid addition salt and the easily soluble adjuvant into solid pharmaceutical prods.. Most of the active ingredient in the prods. dissolves in water within 2-5 minutes.
Patent HU-T37379-A (HU)
Title: Process for production of celats
Inventor: AGOCS PAL M
IPC: C07F15/02
Filed: 1984-04-11
Abstract: An aq. soln. of metal salts is mixed with a calculated amt. of either beta-diketone, acetyl-acetone, benzoyl-acetone or acetoacetic ester and an organic solvent, e.g. benzene or chlorinated hydrocarbons. This is followed by mixing with an alkaline reagent, e.g. an alkaline metal hydroxide, -carbonate, -acetate or NH4OH until the required pH is reached. After the phase sepn. the organic phase is filtered and dried, or the solvent is boiled off to obtain the solid chelate product.