baber/WOPTO huggingface dataset:
Patent GB-246177-A (GB)
Title: An improved process for the fixing of nitrogen
IPC: C01C3/00
Filed: 1926-01-18
Abstract: 246,177. Gewerkschaft Sachsen- Weimar. Jan. 17, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Alkali and alkaline earth cyanides; ammonia.- Cyanides are produced, together with some ammonia, by the reaction of nitrogen alone or in admixture with other gases, such as producer gas, upon a mixture of an alkali or alkaline earth sulphate or sulphide, limestone, and a reducing agent, or calcium sulphide and a reducing agent, with or without a catalyst such as iron or an iron compound, at 800-1000‹ C. The reducing agent may be partially or wholly omitted when reducing gases are present with the nitrogen, and the nitrogen and other gases may be dry or contain steam. The calcium may be introduced as. lime or slaked lime or organic calcium salts, and calcium sulphide may be formed in situ. The meaction mixture may be in the form of lumps, granules, or fine powder, and may be heated externally or internally, for instance in the latter case by contact with burning gas giving a reducing flame. Pressure other than normal may be employed. Examples describe the treatment of mixtures of potassium sulphate, coal and lime or calcium sulphide, in nitrogen or producer-gas. Ammonia may be produced by blowing steam intothe reaction chamber.
Patent GB-1094448-A (GB)
Title: Improvements in and relating to copolymers
IPC: C08F8/20
Filed: 1966-01-12
Abstract: Copolymers are chlorinated by a process which comprises contacting an aqueous slurry, having a maximum solids content of 25 weight per cent, of an ethylene/vinyl acetate copolymer containing 5 to 30 weight per cent of vinyl acetate residues and having a molecular weight of 1,000 to 40,000, with chlorine in the absence of oxygen at not above 70 DEG  C. until the copolymer contains a maximum of 40 weight per cent of chlorine.  In examples ethylene/vinyl acetate copolymers are chlorinated in aqueous slurries, and the products stabilized with phenyl phosphite and a barium/sodium stabilizer.
Patent GB-677834-A (GB)
Title: Improvements in valves
IPC: F16K39/02
Filed: 1949-01-19
Abstract: 677,834. Valves. GUMMERS, Ltd., GUMMER, L. W., and MASSEY, P. March 22, 1950 [Jan. 19, 1949], No. 1544/49. Class 135. A valve suitable for the dual function of supplying water for the suppression of dust in mines and for use as a fire hydrant valve comprises a cup-shaped main valve member 18 having a domed seating face and a passage 22 therethrough controlled by an auxiliary valve member 19 connected by a lug and groove 24 with a screwed actuating spindle 17. A ring 20 screwed into the main valve member coacts with a flange on the auxiliary valve member to provide a limited lost-motion between the spindle and the main valve member. A screwed sleeve 28 has an internal shoulder 30 which coacts with a shoulder 29 on the spindle to provide an adjustable stop. A pressure relief valve 32 may be provided in the outlet 12.
Patent GB-1170002-A (GB)
Title: Improvements in and relating to Coil Assemblies
IPC: H01F38/42
Filed: 1967-01-11
Abstract: 1,170,002. Transformers and reactors; coils. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Jan., 1967 [14 Jan., 1966], No. 1571/67. Headings H1P and H1T. The individual coils 1, 3, 5 making up a coil assembly, such as a line deflection transformer, are constructed so as to fit telescopically within one another, and the insulaton between each winding layer of each section and between the individual coil sections is formed solely by the insulating coating on the wire used to wind the coil sections, this insulating coating comprising besides lacquer a thermoplastics outer layer which is heated during assembly to stick the windings together. For a rigid construction the coil assembly may be surrounded by a cast insulating mass such as an epoxy resin. The coil assembly is mounted on a former 8 having a flange 9 and a hole which can accommodate a core of magnetic material. A further flange 15 secures the coils. Contact is made to the coils by tags 11, which may form tappings if the coils are inter-connected to form a single winding or a tapped auto-transformer.
Patent GB-1004755-A (GB)
Title: Improvements in or relating to devices for loading and unloading fuel elements from nuclear reactors
IPC: G21C19/16
Filed: 1963-01-14
Abstract: 1,004,755. Handling devices for use in nuclear reactors. SOC. INDATOM. Jan. 14, 1963 [Jan. 19, 1962], No. 1587/63. Heading G6C. A device for loading and unloading fuel elements to and from reactor channels is contained between inner and outer top protective walls of the reactor and is carried on a rotatable plug mounted in the upper or outer wall. Since the changing machine has no integral shielding, its weight is considerably reduced. The loading machine is carried on a trolley running on rails supported on the underside of the plug and is placed in alignment with a given fuel channel by firstly positioning the machine at the correct radius on its rails, and by rotating the plug to the required angular position. As seen in Fig. 1, the reactor core 2 has situated above it two concrete walls 3, 4 defining a space therebetween. The plug 6 is rotatable and the radial position of the loading machine 9 is varied by running along rails 7. The loading machine (Fig. 2) includes a sealed container 14 in which are housed a winch and grapple 20 and a revolver chamber type magazine 10 comprising a number of tubes 11 open at both ends. An annular closure 21 prevents elements dropping out of the tubes, and a slide 22 is arranged in a gap in the closure 21 coincident with the machine nose 16, for sealing off and providing access to a fuel channel 1 to which the machine nose 16 has been connected. Also mounted on the charging machine frame is coolant and heat exchange unit 27 for cooling elements stowed in the magazine 10. A plugged hole 29 is provided for obtaining access to the interior of the chamber 14. Servo systems are provided for positional control of the charging machine.
Patent GB-653841-A (GB)
Title: Improvements in crayon for marking textile materials and the like
IPC: C09D13/00
Filed: 1948-01-19
Abstract: 653,841. Crayons. UXBRIDGE WORSTED CO., Inc. Jan. 19, 1948, No. 1601. Convention date, May 10, 1941. [Class 146 (iii)] Crayons such as are used in marking cloth on wound bobbins of yarn in manufacturing processes, are made of materials which wash out readily and do not lose their marking quality by the action of water. They are made of a water dispersible colour carrier consisting of clay, fuller's earth, or infusorial earth, or mixtures thereof to which may be added bentonite, a phosphate salt preferably disodium or dipotassium phosphate which may vary from 1 per cent to 5 per cent of the weight of the colour carrier, and colour in an amount sufficient to give the desired shade. A binder may be added consisting of glycerine, the glycols, diglycol stearate in amount from 5 per cent to 15 per cent of the colour carrier. The whole is mixed in water in amount from 40 per cent to 150 per cent of the weight of the colour carrier, and a preservative such as sodium benzoate may be added. The ingredients are mixed in a high power mixer and then finished in a heated mould, or the crayons may be shaped by extrusion. Example. As colour carrier fuller's earth 90 parts bentonite 10 parts. Water 40 to 70 per cent of weight of colour carrier ; colour 0.2 to 0.6 per cent; glucose 5 to 15 per cent; dipotassium phosphate 1 to 5 per cent ; preservative 0.1 to 0.5 per cent. A list of dyes with their colour indices is given. According to the Specification as open to inspection under Sect. 91, the phosphate salt may be a mono- or tri-potassium salt and the alkalinity of the mixture may be modified by the addition of sodium carbonate, sodium hydroxide or an organic acid such as acetic acid or formic acid. This subjectmatter does not appear in the Specification as accepted.
Patent GB-177889-A (GB)
Title: Improvements in lock and trigger mechanism for semi-automatic small arms
IPC: F41A19/32
Filed: 1921-01-11
Abstract: 177,889. Slade, E. J. W., and Fairfax Arms Syndicate, Ltd. Jan. 11, 1921. Machine guns.-Trigger mechanism for automatic guns adapted to fire single shots comprises a trigger A, sear B, trip lever C pivoted to have a limited upward rotation on the end of the trigger, and a single spring D controlling all these parts. In the case of a gun having a magazine catch E, as shown, this is also controlled by the same spring.
Patent GB-335864-A (GB)
Title: Improvements in kinematograph and other optical projection systems
IPC: G03B21/10
Filed: 1930-01-17
Abstract: 335,864. Baxter, H. Jan. 17, 1930. Optical-protection apparatus and systems; anamorphotic systems. - In kinematographic or other optical projection systems used for the projection of panamoric pictures and comprising a distorting system in conjunction with an image forming system, there is combined with the distorting system 3, 4 an ordinary spherical optical system 5, 6 for rendering substantially parallel the rays entering the distorting system. By this arrangement the aberration due to the cylindrical lenses 3, 4 is considerably reduced. The cylindrical lenses 3, 4 are convergent and divergent respectively and of different focal lengths, and the lenses 5, 6 are ordinary spherical lenses. The lenses are mounted in pairs as shown so as to be relatively adjustable individually and as separate systems. They may also be mounted on a base so as to be capable of removal from the axis of the projector 1.
Patent GB-1188482-A (GB)
Title: Carding Method and Apparatus
Inventor: BETTONI EZIO
IPC: D01G15/46
Filed: 1968-01-12
Abstract: 1,188,482. Fibre feed to carding engines. E. BETTONI. 12 Jan., 1968 [13 Jan., 1967], No. 1927/68. Heading D1N. A card 1 has a plurality of feeding press and clearer units T each of which consists of a roller 4, 4', 4", 4"', a feed table 5, 5', 5". 5"', a taker-in grid 6, 6', 6", 6"' and mote knives, 7, 7', 7", 7"', and each unit feeds a separate web to a first carrying roller 8, 10 which combines the webs into a single web and feeds it directly or via a second carrying roller 9 to the main card cylinder 1. The units are superposed and vertically aligned with a vacuum chamber 11, 11', 11", 11"' fitted beneath each taker-in. In the case of more than two units T being provided, a lower roller 10 is provided and a further roller 9 combines the webs from rollers 8 and 10.
Patent GB-190930-A (GB)
Title: Improvements in or relating to indicator for vacant theatre seats
IPC: G08B5/22
Filed: 1922-01-23
Abstract: 190,930. Guerin, W. L. Jan. 23, 1922. Signalling any of a number of possible indications. -A portable apparatus for signalling the location of vacant theatre seats has two differently coloured sets of electric lamps 16, 25 to indicate groups of seats and isolated seats, controlled by switches in such a way that closing of the third switch of a set, say, to indicate three vacant seats involves the closing of the first and second switches, illuminating three lamps. Each of the spring contact members 8 on a hinge 7 common to the set co-operates with a contact 9 connected to a lamp 16, and has a right-angular extension 29 overlying the main portion of the preceding contact member. Closing of a switch bridges the corresponding lamp across the battery connections 6, 13.
Patent GB-1458101-A (GB)
Title: Device for ultrasonically testing welded components
IPC: G01N29/22
Filed: 1974-01-16
Abstract: 1458101 Ultrasonic inspection devices COMMISSARIAT A L'ENERGIE ATOMIQUE 16 Jan 1974 [29 Jan 1973] 01977/74 Heading G1G [Also in Division H3-5] A welded component is tested for flaws by a method in which the respective non-overlapping focal spots of ultrasonic transducers are distributed through the entire thickness of the component. In the Fig. 6, system the focal spots A, B, C, associated respectively with transducer T0, transducer pair T1, T3 and transducer pair T2, T4, cover successive thirds of the depth of weld S. A pulseecho inspection is made using longitudinal waves. In the Fig. 3, system coaxial annular transducers are at staggered distances from the water couplant/ component interface such that the echo time is equal for all three depth zones e 1 , e 2 , e 3 . Switching of the transducers enables the three zones to be examined in turn. By range-gating an echo-receiver using four over-lapping time-gates, Fig. 4 (not shown) and logically combining their outputs, each zone can be effectively divided into seven consecutive time sections, thus dividing the weld depth E into 21 sections in all for digital display of flaw depth. Echoes are also displayed on a CRO. Other arrangements are described in which the transducers are staggered (giving "equal echo-time") Fig. 9 (not shown) or are generally coplanar Figs. 2, 5, 8 and 10, (not shown), in which the focusing is achieved by individual curved lenses on the transducer faces (Figs. 2, 8, 9) or by a common conical lens (Fig. 5), and in which transverse waves are used instead of or in addition to longitudinal waves.
Patent GB-1135981-A (GB)
Title: Improvements in or relating to electrical switching circuits
Inventor: PAYNE SIDNEY WILLIAM
IPC: H03K17/16
Filed: 1966-01-15
Abstract: 1,135,981. Data stores. INTERNATIONAL COMPUTERS & TABULATORS Ltd. 16 Dec., 1966 [15 Jan., 1966], No. 2002/66. Heading G4C. [Also in Division H3] A circuit for switching one of a number of inputs to a load via a common amplifier has a variable time-constant inter-stage coupling in the amplifier, the time-constant being reduced while switching is taking place, to reduce the chance of the amplifier being blocked by the switching transients. In an example, signals from magnetic heads 1 reading information from a tape or disc are passed via successive stages 18, 40 of an amplifier to a load 41 such as the input register of a core store. The signals pass in push-pull manner through inversely connected transistors 4, 5 which are switched on by a control signal 15 to connect the appropriate head to the amplifier. The coupling between the stages is normally via capacitors 26, 28 and resistors 25, 27 with a timeconstant sufficiently long to pass the signals without distortion. During switching, a positive pulse from source 37 turns on transistors 31, 32 which shunt the resistors 25, 27 and reduce the time-constant so that switching transients die away rapidly. The reactance of the capacitors 26, 28 is low compared with the series resistances 23, 24 to reduce the transient at the end of the pulse from source 37. The input transistors 4, 5 may be replaced by other semi-conductor devices. The invention is also applicable to reading heads for information which is recorded non-magnetically.
Patent GB-302514-A (GB)
Title: Improvements in weighing machines
IPC: G01G3/04
Filed: 1928-01-24
Abstract: 302,514. Salter & Co., Ltd., G., and Bache, E. W. Jan. 24, 1928. Spring balances.-A. personal weighing-machine of the kind having a platform with a pair of depending legs entering a box like casing provided with an upwardly reflecting mirror, has each of the legs connected separately to the casing by parallel links. The platform has legs 6 connected to the side 2 of the casing by parallel links 8 and to the central support 14 by links 19. The support 14 carries a head 13 from which the balancing springs 12 are suspended, so allowing a thin sheet metal top 4 to be used. The sides and back 30, 31, may also be made of thin sheet metal. The legs carry a member 16 having a head 23 in a slot 22 in which a plate 21 is mounted to carry a rack 17 for operating the pointer 15 of the dial. The pointer may be adjusted to zero by moving the plate 21 and rack by the nut 26. A mirror 35 may be hinged to the base to reflect upwards the readings of the dial.
Patent GB-161342-A (GB)
Title: An improved candle stick or holder suitable for burning waste wax, candle droppings and the like
IPC: F21V35/00
Filed: 1920-01-24
Abstract: 161,342. Alcock, J. Jan. 24, 1920. Candle-holders.-Candlesticks or caudle holders are provided with means for consuming waste wax, fat, candle droppings &c., waste wax-vesta stalks or ends of tapers 'being used as wicks. A support b, Fig. 1, fitting in the candlestick socket or spring- clip candle holder carries a detachable earthenware or metal plate c having a central perforation in which a waste wax-vesta stalk e is inserted. The lower end of the vesta stalk is splayed outwards underneath the plate. Waste wax &c. is placed on the plate c around the stalk. On igniting the stalk, the waste wax melts and runs into a cavity b<2> in the support b from which the wick is fed. If necessary, colza oil &c. may be used to feed the wick until sufficient wax is obtained. The wick-holding plate c may be fluted, slotted or perforated as at f<1> to direct the melted wax or oil. According to the Provisional Specification, the candlestick may consist of a shallow receptacle having an upstanding central portion dished at the top to form an oil receptacle, and the wick-holding plate is arranged over the oilreceptacle. The device may be used for burning night-lights placed in the recess x or resting on the plate C, which may be provided with spikes. In a modification, the wax-vesta stalk is supported by a coiled wire. Fig. 9 shows a form for traveller's use in which a receptacle b carrying the wick-holding plate c is of shallow formation and is provided with a cover k. The cover k may be secured to the receptacle b by pin and keyhole slot connections. Fig. 10 shows the device constructed in the form of a miniature bedwarmer which may be hung up as an ornament when not being used for lighting purposes. The cover k in this form is hinged to the receptacle b, and as in the form shown in Fig. 9 may be used as an extinguisher.
Patent GB-414045-A (GB)
Title: Improvements in apparatus for the manufacture of sheet material
IPC: B29C41/24
Filed: 1933-01-24
Abstract: An endless metal band for use in the manufacture of artificial films, foils &c. is formed with a basic layer of metal capable of being flexed repeatedly and a hard superficial layer of the same metal capable of taking a high polish.  The basic band may be of cold rolled nickel jointed by hammer welding in a reducing atmosphere of about 200 DEG  C. below the melting point, the plating being also of nickel electrolytically deposited.  The band may be used in a machine as described in Specification 396,723.
Patent GB-246842-A (GB)
Title: Process for the production of 2-amino-5-iodopyridine
IPC: C07D213/73
Filed: 1926-01-26
Abstract: 246,842. Rõth, C. Jan. 26, 1926. 2-Amino-5-iodopyridine is prepared by treating 2-aminopyndine with a solution of iodine in alkali iodide (the iodine being preferably in excess), then digesting the crude mass with an alkali hydroxide solution of concentration exceeding 10 per cent, e.g. 10-30 per cent, and finally crystallizing the residue from its solution in water. The treatment with alkali hydroxide solution, the most suitable concentration of which is stated to be 20-35 per cent, is preferably carried out at normal temperature. An example is given.
Patent GB-719643-A (GB)
Title: Improvements in and relating to sound reproducing apparatus
IPC: G11B3/12
Filed: 1952-01-28
Abstract: 719,643. Gramophones. BIRMINGHAM SOUND REPRODUCERS, Ltd., GUEST, L. V., and SHEPHARD, P. V. Jan. 12, 1953 [Jan. 28, 1952; July 16, 1952], Nos. 2338/52 and 18002 / 52. Class 40 (2). In an automatic gramophone the frictional forces tending to sweep the pick-up inwards at the start of a record is countered by the use of yieldable spring biasing means which acts in opposition the movement of the pick-up during the earlier part of its traverse across the record, but becomes progressively reduced until at the end of the. record the direction of the biasing may be reversed. The invention may be used in an automatic gramophone of the kind described in Specification 693,594. A spring 66 is mounted on a member 56 which is stationary during the playing of a record, the end of the spring resting in and acting on an arm 68 on a member 25 carrying the pick-up arm. As the member 25 rotates clockwise during the playing of the record, a dead centre is eventually passed, Fig. 4, after which the spring 66 assists the inward movement of the pick-up arm. A gravity biasing means may be employed in which a weight pivotally connected with the pick-up arm is drawn up an inclined surface during the tracking of the stylus, the inclined surface being made of varying gradient and finally terminating in a gradient of opposite slope.
Patent GB-1443406-A (GB)
Title: Purification of coumarin and alkylated derivatives thereof
IPC: C07D311/12
Filed: 1975-01-20
Abstract: 1443406 Purifying coumarins STAMICARBON BV 20 Jan 1975 [25 Jan 1974] 2369/75 Heading C2C A coumarin of the formula where R 1 -R 6  are hydrogen or alkyl such that the total number of carbon atoms in the alkyl substituents is not more than 10, is purified by treating it with an aqueous solution of a basic compound, at 20-150 C. and washing the then treated coumarin with water at 20- 150 C.
Patent GB-607062-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: F23Q2/06
Filed: 1946-01-24
Abstract: 607,062. Frictional igniters. FEURER, J. Jan. 24, 1946, No. 2380. Convention date, May 1, 1945. [Class 75(iii)] In a lighter in which the flint wheel, its operative roller and the wick all have their axes parallel to the length of the lighter, the roller is accessible for operation in at least two diametrically opposite places to allow it to be rotated easily in either direction. In a cylindrical lighter, Fig. 1, the roller 29 may be accessible round the whole periphery and have inner teeth 30 meshing with a pinion 31 to which the flint wheel 35 is attached. The flint may be urged by a U-shaped leaf spring 39 and an opening 45 may be provided at the side of the spring (similar to the opening 77 for the spring 72 in the modification shown in Fig. 7), so that the spring may be moved into a sloping position to allow the extraction of the flint. A hook 54 may be carried in the closure plug 21 and is adapted to be removed to engage the spring 39 to move it to the sloping position. The wick 83, Fig. 11, may extend axially through the roller 82, which may be integral with a toothed wheel 87 meshing with a pinion 88 to which the flint heel 86 is attached. 'Alternatively, the wick 71, Fig. 7, may extend axially through the roller 61 which may have inner teeth meshing with a pinion as in the lighter of Fig. 1. Preferably the lid of the lighter is provided with a nose engaged by a spring urged bush, as seen in Fig. 16, and the lid 97 in this modification may have a tubular part 98 disposed eccentrically relatively to the wick 96 so that the lid may be opened without obstruction by the wick. In all the modifications, either the axis of the flint wheel or of the wick or of both is situated within the geometric cylinder surrounding the roller, and the roller is rotatable in either direction, rotation in one sense sending sparks onto the wick directly, and rotation in the other sense sending sparks directed onto the wick by a wall, such as 74, Fig. 7, which partly surrounds the flint wheel.
Patent GB-1489982-A (GB)
Title: Dispensing device
IPC: B65D37/00
Filed: 1975-01-20
Abstract: 1489982 Dipping cows' teats J SILVER 20 Jan 1975 [20 June 1974] 2439/75 Heading A5R [Also in Division B8] Cows teats are dipped into cups 18 arranged around a collar 24 screwed onto the neck of a flexible container 10, the arrangement being such that when the container 10 is squeezed, liquid flows therefrom through a flexible tube and conduit 28 to be returned by a cap 50 downwardly along the outer surface of conduit 28 between ribs 40 thereon and passes to open channels 44 leading to the respective cups 18. The cups 18, conduit 28 and channels 44 may be integrally moulded with a plate 20 provided with indicia 22, LF .. RR identifying the respective cups and teats.