baber/WOPTO huggingface dataset:
Patent GB-808658-A (GB)
Title: Electromagnetic eraser
IPC: G11B5/004
Filed: 1955-12-16
Abstract: 808,658. Magnetic recording apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 16,1955 [Dec. 24,1954], No. 36107/55. Class 40 (2). A system for erasing magnetically recorded signals from the entire surface of a rotatable or loop type of record member, comprises energizing means for applying a progressively diminishing current to an erase head whereby each elemental area of record surface is subjected to an alternating magnetic field of initially large but progressively decreasing amplitude. In the embodiment described the erasing head comprises an E-section magnetic core extending to little more than the width of the record member and having four coils spaced along its length and connected as shown in Fig. 2. By means of the double gap so formed, each elemental area of the record is subjected to a rapid reversal of flux as it passes the central limb. In the embodiment described decaying cycles of current of A.C. are supplied to the head, although with the three-limbed core described, similar reversals of flux would equally be obtained with D.C., the essential requirement however for complete erasing being that the cycles of decay do not coincide with a revolution of, or multiples of revolutions of, the record member. A similar objection lies when the ratio approaches an odd multiple of 0.5. A preferred ratio is one which approaches an integer, but not unduly so as the erase time would then become prohibitively long. In the embodiment decaying cycles of current of 60-cycle A.C. are applied by means of an auto-transformer 7, the rotary brush of which is driven by a motor 11. A cam device 16 controls the supply circuits of the motor 11 and transformer 7. Decay cycles continue only while a contactor 12 is operated, but if released, contacts 13, 14 effect a hold-on circuit until a decay cycle has been completed.
Patent GB-835486-A (GB)
Title: Improvements in or relating to method and apparatus for crimping textile strands
IPC: D02G1/12
Filed: 1957-11-20
Abstract: 835,486. Crimping fibrous strands. TEXTURED YARN CO. Inc. Nov. 20, 1957 [Nov. 27,1956], No. 36155/57. Classes 120(2) and 120(3) Strands are crimped by applying to them a movable impeding force continuously and uniformly at a fixed location within a confining region into and through which the strand is passed. The invention is applicable to natural or synthetic materials in filament or staple fibre forms; multifilament nylon strands are specifically mentioned. A strand is guided by a block and clip arrangement 7, 8 to the nip of feed rolls 4, 4<SP>1</SP> that compress it into the tube 5 into which extends a wheel 45 preferably provided with teeth and constituting the impeding force. One manner of providing the necessary braking force to the wheel 45 is to pass a belt 29 around a part of the wheel 45 and around a stationary sheave 28. The shaft of wheel 45 may be provided with vanes. Instead of the wheel 45. one or more chains may be employed. The front or a side wall of the tube 5 may be of glass or transparent plastic.
Patent GB-1393776-A (GB)
Title: Multi-circuit brake system for a vehicle trailer
IPC: B60T8/32
Filed: 1972-08-03
Abstract: 1393776 Tractor-trailer braking systems WABCO-WESTINGHOUSE GmbH 3 Aug 1972 [5 Aug 1971] 36294/72 Heading F2F Two lines of a multicircuit brake system of a trailer comprise an air pressure supply line 1 from a tractor and the brake pressure line 19 of the tractor, each line controlling opening of relay valves 14, 8 which control braking pressure supplied from line 1 to front and rear brake cylinders 11, 12 via reservoirs 5, 6. During normal braking the pressure in line 19 is regulated at 21 and fed to actuator connections 22, 23 respectively of valves 14, 8 to open these valves allowing air pressure to pass to cylinders 11, 12 by way of a first circuit of line 1 comprising reservoir 5 and valve 8 and by way of a second circuit comprising reservoir 6 and valve 14 to the front cylinders only. A single line control valve 3 allows the line 1 pressure to pass to reservoirs 5, 6 by way of a protection valve 4 allowing limited return flow, during normal braking but on loss of pressure in line 1 either by disconnection of the tractor and trailer or by fracture thereof allowing air to pass from reservoirs 5, 6 via valve 4 into a line 16 for actuating connections 17, 18 of valves 14, 8 respectively to open these valves and actuate cylinders 11, 12. If pressure is lost in the first circuit only front cylinders 11 are applied whereas if pressure is lost in the second circuit both cylinders 11, 12 are actuated.
Patent GB-1115505-A (GB)
Title: Sole for repairing shoes
IPC: A43B13/14
Filed: 1965-08-25
Abstract: A sole for repairing footwear without removing the old sole has regions of increased thickness in those places where wear is usually greatest e.g. the toe and central part of the sole.  The sole may be pre-finished and may have a coating of adhesive on its upper surface. The sole may be made by moulding rubber or plastics material or by reducing the thickness of a leather sole in those regions where the least wear occurs.  The sole is stuck directly on to the old sole after the old sole has been roughened.
Patent GB-1193109-A (GB)
Title: Methods of Coating Semiconductive Materials with Conductive Metals.
Inventor: LEPIANE DONALD CARL
IPC: H01L21/306
Filed: 1967-08-10
Abstract: 1,193,109. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. 10 Aug., 1967 [20 Sept., 1966], No. 36776/67. Heading H1K. [Also in Division C7] A method of forming metallic contacts on semi-conductor bodies by electroless plating may be applied to silicon double diffused diodes. Doped silicon slices are provided on their opposite faces with organic solutions of boron trioxide and phosphorus pentoxide and heated to form diffused regions. Hydrofluoric acid etching is effected through when sufficient to remove the borosilicate glass formed by the diffusion process (the less resistant phosphosilicate glass is also removed) it deactivates the silicon surface for electroless plating. The slices are therefore next dipped in hot aqueous ammonia to activate their surfaces and (after an optional hydrofluoric acid etch to remove any thin oxide formed in this process) are dipped in any standard electroless coating solution, such as a bath containing nickelous chloride and sodium hypochlorite. The slices are diced and are provided with leads and housings or mountings.
Patent GB-411565-A (GB)
Title: Improvements in or relating to fence construction
IPC: E04H17/14
Filed: 1932-12-30
Abstract: 411,565. Fencing. MARTIN, W. A., 17, Mill Road, Merton, London, and STENNING & SON, Ltd., J., 136, London Road, East Grinstead, Sussex. Dec. 30, 1932, No. 36867. [Class 45.] The ends of the arris rails 6 of wooden fencing are secured to notched vertical end members 4, Fig. 7, and the end members are bolted to the web 13 of a tapering T- section concrete post 2. The end members 4 are recessed at 8, Fig. 9, near their lower ends, the recesses in conjunction with the inside face of the flanges of the posts serving to accommodate the gravel boards 10 which may be formed of concrete. The posts may be of the same dimensions at their bases as bricks whereby they can be let into a wall.
Patent GB-1087613-A (GB)
Title: Improvements in or relating to the electrodeposition of chromium
Inventor: BISHOP EDWARD ERNEST
IPC: C25D3/04
Filed: 1963-09-19
Abstract: A micro-cracked chromium layer is electro-deposited on an object, e.g. on a nickel electroplated layer applied over a copper flash to a steel body, in a single stage from a plating bath containing 225-275 g/l CrO3, 3.5-6 g/l SiF6 ion e.g. Na2 SiF6 and H2SO4 in a concentration such that the weight ratio of CrO3 to H2SO4 is 130-250; the current density is 100-300 A.S.F. and the bath temperature is 100-130 DEG F.  The electrolyte may contain trivalent Cr.
Patent GB-869760-A (GB)
Title: An alternating-current stabiliser
IPC: G05F3/06
Filed: 1957-11-27
Abstract: 869,760. Inductors. KRIZIK-KARLIN, VYVOJOVY ZAVOD, NARODNI PODNIK, TOMANEK, E., KRUSEK, J., DUDAS, B., and HEJDA, J. Nov. 27, 1957 [Nov. 27, 1956], No. 36989/57. Class 38 (2). A device for providing a constant current comprises a magnetic core having two legs 4, 5 carrying windings, one or more legs 2 provided with air gaps 3 and a leg 1 which includes a permanent magnet, the cross-sectional area of the gaps 3 being greater than that of the legs 2. The two windings are connected in series opposition and a flux is set up by the permanent magnet which saturates the legs 4 and 5. One or other of the windings will produce flux opposing the permanent magnetic flux in its leg so that the current through the series winding is limited on both half-cycles.
Patent GB-1385819-A (GB)
Title: Displacement detecting apparatus
IPC: G01D5/22
Filed: 1972-08-08
Abstract: 1385819 Detecting displacement electrically TOKYOKEIKIKK 8 Aug 1972 [10 Aug 1971 (2)] 36992/72 Heading G1N A displacement transducer arrangement comprises a primary winding, 110 overlying four  secondary coils each comprising a pair of windings, the eight secondary windings being interconnected as shown in Fig. 4 so that at the pairs of output terminals 113bS, 114bS, and 113aS, 111aS, voltages are derived whose magnitudes are related to the displacement of the primary coil in the x and y directions respectively. A gyrocompass including two such transducers 6 is shown in Fig. 5. The primary windings 4N, 4S are mounted on opposite sides of a case 1 housing a gyro rotor, and supported by a wire 3 in a liquid filled container 2. Displacements registered by the secondary elements 5N, 5S, are detected and fed to control servomotors 10, 19 to rotate the case and restore balance, course being read on a compass card 22 circuits whereby the transducers 4 and 5 operate to control the motors 10 and 19 are disclosed Figs. 7 and 8 (not shown). To effect a damping action a further coil 116 is provided surrounding the four secondary coils. The two coils 116 are connected in the control circuit of the servomotor 19 and produce a signal proportional to any displacement of the centre of the case 1 from the centre of the container 2 which itself is proportional to the inclination of the rotor axis to the horizontal.
Patent GB-846814-A (GB)
Title: Improvements in the continuous production of hexachlorcyclopentadiene
Inventor: STEINHOFER ADOLF
IPC: C07C17/10
Filed: 1958-11-18
Abstract: Hexachlorocyclopentadiene is continuously prepared by reacting n-pentane, isopentane, cyclopentane, cyclopentene, cyclopentadiene or dicyclopentadiene or mixtures thereof, with chlorine in the p presence of a catalyst at 200 DEG C. or above, where the hydrocarbon vapour is continuously brought into a reaction zone heated to reaction temperature together with chlorine and, as catalyst, the vapour of at least one compound selected from oxides of nitrogen, nitrogen oxychlorides, aliphatic, alicyclic, aromatic or heterocylic amines, benzonitrile, monocarboxylic acid nitriles, unsubstituted or N-alkyl (1 to 4 carbon atoms) mono- or di-substituted monocarboxylic acid amides of alkane or alkene carboxylic acids with up to six carbon atoms in the alkane or alkene radical or cyclic N-unsubstituted or N-alkyl (1 to 4 carbon atoms), mono- or di-substituted carboxylic acid amides where the amide group forms part of a ring with 3 to 5 CH2 groups, so that the reactants and catalyst pass through the reaction zone in vapour phase, cooling the vapour leaving the zone and separating hexachlorocyclopentadiene from the condensate.  The ratio of hydrocarbon to chlorine is preferably between 1:8 and 1:15 and the concentration of the nitrogenou s catalyst 0,2 to 10% by weight based on the hydrocarbon.  The gaseous reaction mixture is preferably diluted with an inert gas, generally 5 to 50 mols of nitrogen per mole of chlorine.  The reaction zone may be a vertical tube of steel, quartz or ceramic, heated externally e.g., electrically, with the gas stream entering at the top and leaving at the bottom.  The catalyst, if solid or liquid at room temperature, may be introduced as such into the heated reaction zone or vaporised and mixed with one or both reactants.  Many specific catalysts of each particular group are mentioned.  In the examples the reactants, temperature, flow rates and content of the liquefied reaction product are tabulated.  The examples illustrate the use as catalysts, of NO, N2O, NO2, NOCl, NO2Cl, triethylamine, n-butylamine, pyridine, pyrrolidine, N-butylpyrrolidine, dibutylamine, cyclohexylamine, diethylamine, 2-ethylhexylamine-1, propionitrile, acrylonitrile, benzonitrile, acetonitrile, N,N-dimethylformamide, N,N-dibutylformamide, N-methylformamide and N-methyl pyrrolidone. Specification 771,856 and U.S.A.  Specification 2,658,085 are referred to.
Patent GB-1382836-A (GB)
Title: Liquid spraying apparatus
IPC: B05B9/08
Filed: 1971-08-06
Abstract: 1382836 Reciprocating pumps BINKS-BULLOWS Ltd 25 July 1972 [6 Aug 1971] 37030/71 Heading F1A A pump for supplying liquid, e.g. paint, to a spray gun comprises a diaphragm pump unit disposed in the liquid container 27 and operated by a spring-loaded piston 15 acting through a liquid column in a conduit 16, the piston 15 being reciprocated in a liquid-filled housing 17 by an eccentric 14 driven by an electric motor 11 mounted on the container lid 10. The diaphragm 18a is loaded by a spring 19 and draws liquid from container 27 via a filter 32a, ports 32 and an inlet valve 29, and discharges the liquid via outlet valve 40 and conduit 41 to the spray gun. The inlet valve spring 37 is adjusted so that in the rest position of valve 29 there is clearance between the valve member and its seat to permit venting of air from the pumping chamber at the start of the delivery stroke, valve spindle 34 also having clearance in bore 35 to permit misalignment of the valve for venting air. An adjustable pressure-relief valve 20 connects conduit 16 to housing chamber 17 when the liquid column pressure rises due to closure of the spray gun discharge control valve.
Patent GB-957968-A (GB)
Title: Veterinary composition for combating ecto - and endoparasites
Filed: 1962-10-01
Abstract: A veterinary composition for combating ecto- and endo-parasites in domestic animals comprises a sterile aqueous solution of ,oo-dimethyl - S - (N - methyl - carbamoyl - methyl) thiolophosphate, which is preferably present in an amount of 1 to 50% by weight.  The sterile solutions are administered parenterally.  Aqueous solutions of the active ingredient may also be poured on the backs of the animals in the so-called "pour on" method of administration.  Specification 851,005 is referred to.
Patent GB-1044581-A (GB)
Title: Improvements in and relating to electron microscopes
Inventor: MOELLER KARL
IPC: H01J37/20
Filed: 1962-10-01
Abstract: 1,044,581. Cooling electron microscopes. CARL ZEISS JENA VEB. Sept. 2, 1963 [Oct. 1, 1962], No. 37152/62. Heading H1D. The rod-shaped specimen holder of an electron microscope is cooled by contact with an extension of the focusing stage of the microscope. This prevents expansion of the holder, and hence movement of the specimen, by heating by the beam during exposure. The rod may be inserted into the chamber through a rubber seal and a wall of the focusing stage may be deformed by a screw assembly to pinch the holder, or a tapered end of the specimen holder may fit into a groove in the focusing stage.
Patent GB-831840-A (GB)
Title: Monoazo dyestuffs containing sulphonic acid-(sulphonyl)í¡í¡ps
Filed: 1957-11-28
Abstract: The invention comprises dyestuffs of formula R1SO2NHSO2R.N=NR3 where R is a benzene residue which may contain substituents other than sulphonic or carboxylic acid groups, R1 is an alkyl or phenyl radicle which may contain substituents except sulphonic or carboxylic acid groups and R3 is the residue of a 1-sulphoaryl-3-methyl-5-pyrazolone or aminopyrazole linked to the azo bridge in the 4-position, the sulphoaryl groups of which may be substituted by halogen atoms or alkyl radicles.  The dyestuffs are made by coupling, in weakly acid to alkaline media, diazotized amines of formula R1SO2NHSO2.R.NH2 with appropriate pyrazolones or pyrazoles.  Specified diazo components are 1-amino- and 1 - amino - 5 - chloro - benzene - 2 - sulphonic acid (phenylsulphonyl) - amides, 1 - amino - benzene - 2 - sulphonic acid -(41 - chloro-, -methyl- and -acetylamino-, 21 - methyl- and -21,51- and -31,41 - dichloro - phenylsulphonyl)-amides, 1 - amino - benzene - 3 - sulphonic acid -(phenylsulphonyl)-amide and its 21- and 41-methyl and 41-chloro- and -acetylamino derivatives, 1-amino-6-chlorobenzene-3-sulphonic acid -(phenyl-sulphonyl)-amide and its 41-methyl and 31,41-dichloro derivatives, 1-aminobenzene-4 - sulphonic acid -(phenyl - sulphonyl) - amide and its 21- and 41-methyl derivatives.  Specified coupling components are 1-(21-, 31- and 41-sulpho-, 21-methyl- and -chloro- and 21,51-dichloro - 41 - sulpho- and 21 - chloro- and 21,31,61 - trichloro - 51 - sulpho - phenyl) - 3 - methyl - 5 - pyrazolones, 1 - (21 - naphthyl - 61 - sulpho and -61,81 - disulpho) - 3 - methyl - 5 - pyrazolones and 1-(31-sulphophenyl) and -(21-naphthyl - 81 - sulpho) - 3 - methyl - 5 - amino-pyrazoles.  The dyestuffs dye wool and polyamide and polyurethane fibres from a weakly acid bath in yellow shades. Examples are provided illustrating the preparation of the dyestuffs and their uses in dyeing wool, the components used being selected from those indicated above with the addition of 1-amino-benzene-2-sulphonic acid -(21,51-dimethyl-41-chlorophenyl)-, 1 - amino - 2 - chlorobenzene - 5-sulphonic acid -(21,51-dichlorophenyl) and 1-aminobenzene - 2 - sulphonic acid -(methyl)-sulphonylamides and 1-(21-naphthyl-41,81-disulpho) - 3 - methyl - 5 - pyrazolones and 1 - (21,51-disulphophenyl) - 3 - methyl - 5 - aminopyrazole.
Patent GB-1010456-A (GB)
Title: Means for measuring and/or controlling the evaporation rate in vacuum evaporation processes
Inventor: FULTON DONALD
IPC: C23C14/54
Filed: 1962-10-02
Abstract: <PICT:1010456/C6-C7/1> <PICT:1010456/C6-C7/2> <PICT:1010456/C6-C7/3> In a vapour deposition process using an electron beam emitter to evaporate the source material, the rate of evaporation is controlled by regulating the current through the emitter according to the ionization current resulting from the evaporation, the ionization current being registered by a vapour ion electrode exposed to part of the evaporant stream.  A residual ion electrode outside the path of the evaporant stream registers the background ionization current and the electrodes are mounted in an assembly comprising an earthed shielding electrode 1, residual ion electrode 2 and a vapour ion electrode 3 insulated by spacers 4, 5 and 6.  A collimator tube 7 passes through electrodes 1 and 2 and shields the residual ion electrode from the evaporant.  The electrode assembly is mounted on pillars 10 in a vacuum chamber between the source material and the substrate and an electron beam emitter 25 vaporizes the source material, the vapour material passing through the tube 7 and aperture 18 in the vapour ion electrode 3 which thus acquires a positive charge.  As shown in Fg. 4 the difference in the outputs of the vapour ion and residual ion electrodes is amplified at 21 and fed to a controller meter 22 which indicates the rate of evaporation and/or opertes pre-set relays to actuate motor 23 of transformer 24 which controls the current input to the emitter 25.  Alternatively (Fig. 5, not shown) the output from 21 may be applied to a saturable reactor which controls the source temperture at constant high tension. Timing mechanisms may also be incorporated in the control gear. An alternative arrangement of the electrode assembly is also described (Fig. 6, not shown).
Patent GB-1525744-A (GB)
Title: Pyridinylidene guanidines
IPC: C07D213/73
Filed: 1975-09-10
Abstract: 1525744 Pyridine-derived guanidines E R SQUIBB & SONS Inc 10 Sept 1975 [26 Sept 1974] 37286/75 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable salts, wherein R 1  and R 2  are each C 1-6  alkyl, C 3-6  cycloalkyl, Ph or Ph-C 1-6 -alkyl; R 3  is H, halogen, CF 3 , C 1-6  alkoxy, Ph or (C 1-6  alkyl)2 NSO 2 ; R 4  is H, halogen, C 1-6  alkyl or alkoxy, or Ph; n is 1 or 2; and each Ph may be substituted with 1-2 halogen, CF 3  or C 1-6  alkyl or alkoxy. These compounds are prepared by reacting the analogous 2-(unsubstituted imino-)-(1H)-pyridines with R 1 -N=C=N-R 2 . Starting materials also prepared are corresponding 2-amino-1-benzylpyridinium halides, and those of formulae p-HO 3 SC 6 H 4 CO 2 Me and p-XC 6 H 4 SO 2 NMe 2 , where X is MeO 2 C, HOCH 2  or ClCH 2 . Therapeutic compositions given orally as C.N.S. stimulants comprise compounds of the above formula.
Patent GB-859187-A (GB)
Title: Method for preparing substituted tris amino boranes
IPC: C07F5/02
Filed: 1959-11-04
Abstract: A substituted tris (amino) borane is prepared by reacting an alkyl boric acid ester having alkyl groups containing from 1 to 5 carbon atoms with a primary amine RNH2, where R is an alkyl group containing at least 4 carbon atoms, or a cyclopentyl or cyclohexyl group, or a tetrahydronaphthyl group, or a phenyl or substituted phenyl radical C6X5 where X, in each case is hydrogen, or an alkyl group containing from 1 to 5 carbon atoms, or a alkoxy group containing from 1 to 5 carbon atoms, or a phenyl radical, or a phenoxy radical, or a halogen atom, at least 3 moles of the primary amine being used per mole of utilisable alkyl boric acid ester.  By "utilisable" is meant such ester as would not be distilled from the reaction mixture in the form of an ester-alcohol azeotrope.  Thus 4 moles of methyl borate provide one mole of utilisable ester, and 1,48 moles of ethyl borate provides one mole of utilisable ester.  The process may be affected continuously by continuously introducing the reactants into a distillation column and continuously removing the substituted tris (amino) borane from the bottom of the column and the alcohol or alcohol-ester azeotrope from the top of the column.
Patent GB-1523434-A (GB)
Title: Production of nitrogen
IPC: F25J3/04
Filed: 1975-10-08
Abstract: 1523434 Air separation PETROCARBON DEVELOPMENTS Ltd 8 Oct 1975 37462/74 Heading F4P In an air separation process for obtaining gaseous nitrogen, in which the cold is produced by work expansion of at least part of at least one of the process streams, the work produced by the expansion is used to increase the pressure of the product nitrogen gas. As shown, air is compressed at 10, impurities are removed in adsorbers 11, and the air is cooled and partly liquefied in heat exchangers 12, 13 before introduction to column 15. Liquefied "bottoms" is expanded at nozzle 18 vaporized in heat exchanger 14 and further warmed in heat exchanger 13 then work expanded in a turbine 16. Gaseous nitrogen product is withdrawn at the top 35 of column 15, a portion is liquefied in heat exchanger 14 and refluxed at 38, whilst the remainder is passed through heat exchanger 12 before being compressed by blower 17 driven by turbine 16. Some liquefied nitrogen product may be withdrawn at 39.