baber/WOPTO huggingface dataset:
Patent GB-894070-A (GB)
Title: Improvements in and relating to the bleaching of cotton fibres
IPC: D06L3/02
Filed: 1960-09-29
Abstract: Cotton fibres are bleached by a cold-bleaching process in which the fibres are dampened with a bleach comprising an aqueous alkaline hydrogen peroxide solution containing an alkali-metal dipersulphate or ammonium dipersulphate and maintained in a dampened condition to permit bleaching to take place.  The bleach solution perferably contains 3-15 grams/litre of the alkali-metal dipersulphate or ammonium dipersulphate, 0.75%-5% by weight of hydrogen peroxide, 5-25 grams/litre of sodium hydroxide or an equivalent amount of another alkali, e.g. potassium hydroxide or an alkali metal phosphate, 15-50 grams/litre of sodium silicate or 2-15 grams/litre of sodium phosphate as stabilizer and 1-5 grams/litre of a non-ionic or anionic wetting agent, e.g. an alkyl aryl sodium sulphate or a condensation product of an alkyl phenol with ethylene oxide.  The hydrogen peroxide and alkali may be introduced into the bleach solution as sodium peroxide.  In the dampened condition the fibres preferably contain 50%-150% by weight of the bleach solution and are preferably maintained in the dampened state by stacking.  The bleaching operation is preferably carried out at a temperature at or near room temperature, e.g. 50 DEG F.-120 DEG F., for 6-24 hours.  The cotton fibres may be raw stock or they may be carded, spun, woven, knitted, felted or otherwise fabricated into goods alone or mixed with other fibres.
Patent GB-1270414-A (GB)
Title: Apparatus for determining the melt index of plastics
IPC: G01N11/06
Filed: 1969-07-02
Abstract: 1,270,414. Digital measurement. VEBACHEMIE A.G. 2 July, 1969 [2 July, 1968], No. 33479/69. Heading G4H. [Also in Division G1] An apparatus for obtaining the melt index or viscosity of a plastics material comprises a cylindrical chamber 2 adapted to be heated and containing plastics material 5, a calibrated orifice in nozzle 4, a plunger 3 mating with chamber 2 and adapted to expel the material through the orifice with a predetermined force, and means for observing the movement of the plunger and displaying the rate of displacement numerically. The plunger moves under its own weight and causes wheel 9 to rotate and generate pulses as perforations in the wheel pass photoelectric cell 10 or, alternatively, as magnetic spots on the wheel pass a magnetic transducer. The pulses are counted at 12 and displayed numerically. In use, pulses are counted for a time interval determined such that the reading displayed is the melt index. The results may be recorded.
Patent GB-683032-A (GB)
Title: Improvements in electromagnetic actuators
IPC: H01F7/16
Filed: 1949-12-31
Abstract: 683,032. Electrically-actuated valves. STEYNOR, D. V., and VERDIK, Ltd. Sept. 22, 1950 [Dec. 31, 1949 ; March 31, 1950], Nos. 33482/49 and 8193/50. Class 135. [Also in Group XXXV] An air-valve is moved by two armatures 26, 28a joined by a mechanical lost-motion connection consisting of a pin 29 passing transversely through the armatures. The valve body 10 has a cylindrical valve chamber 11 having a radial air-inlet port 12. Air is admitted to the chamber 11 through a wedgeshaped port 18 in a rotary regulator sleeve 19 surrounding the chamber 11 and capable of being frictionally held in various positions of adjustment by a spring blade 20.
Patent GB-1372784-A (GB)
Title: Travelling wave shedding looms
IPC: D03D47/26
Filed: 1972-07-18
Abstract: 1372784 Shedding motions WIRKMASCHINENBAU KARL-MARX-STADT VEB 18 July 1972 33571/72 Heading D1E In a travelling wave shed loom wherein shedding is performed by cams 3, 4, acting through pivoted levers 6 on heald frame carrying rods 8, all the heald frames are brought to the same level by raising a rail 16 which acts on the levers 6, and simultaneously raising a further rail 17, to which heald frame return springs 18 are fixed. Rails 16 and 17 are fixed at their ends to supports 14 which are movable vertical in the loom frame side members 1 and 2 by means of pinions 23, and a rack 15 on supports 15. The heald frames may be lifted above the upper shed position and maintained there by passing a wire through holes 24 in the rods 8.
Patent GB-733302-A (GB)
Title: High sulphur rubber composition
IPC: C08L21/00
Filed: 1953-12-03
Abstract: A composition comprises 100 parts of a rubber, 16 to 28 parts of sulphur, and not more than 100 parts of a resinous copolymer of styrene and a conjugated diene hydrocarbon.  The rubber may be p natural or synthetic rubber, e.g. a butadiene-styrene copolymer prepared at 41 DEG  F., or polybutadiene or a butadienearylonitrile copolymer.  The resinous copolymer may be made from 90 parts of styrene and 10 parts of butadiene or may be a styrene-isoprene copolymer.  A filler, e.g. hard clay, and the usual vulcanization materials may also be present and the composition may be vulcanized.ALSO:A composition comprises 100 parts of natural rubber, 16 to 28 parts of sulphur and not more than 100 parts of a resinous copolymer of styrene and a conjugated diene hydrocarbon.  The conjugated diene may be butadiene or isoprene, a specified copolymer being made from 90 parts of styrene and 10 parts of butadiene.  A filler, e.g. hard clay and the usual vulcanization ingredients may also be present and the composition may be vulcanized.
Patent GB-1113758-A (GB)
Title: The lactone of a substituted malonic acid ureide,its preparation and use
IPC: C07D307/33
Filed: 1966-07-26
Abstract: The lactone of 2-allyl-2-(b -hydroxypropyl)-malonic acid ureide is prepared by the action of a base on 5-allyl-5-(b -sulphoxypropyl)-barbituric acid, prepared by reacting 5,5-diallylbarbituric acid with sulphuric acid at a temperature of up to 28 DEG  C., whereby the sulphuric acid adds to the double bond of one allyl group of said diallylbarbituric acid.  Therapeutic compositions which have a valuable effect upon the function of brain and heart cells, and a weak anti-convulsant action, and which may be administered orally, parenterally or rectally, contain 2-allyl-2-(b -hydroxypropyl)-malonic acid ureide as active ingredient.
Patent GB-1191742-A (GB)
Title: Preparation of Aliphatic Ketones
Inventor: YOUNG HOWARD SETH
IPC: C07C45/48
Filed: 1967-07-21
Abstract: 1,191,742. Condensation catalysts. EASTMAN KODAK CO. 21 July, 1967 [5 Aug., 1966], No. 33753/67. Heading B1E. [Also in Division C2] A solid catalyst comprises an oxide of lithium supported on activated alumina. The oxide of lithium may form a salt resulting from reaction of the lithium oxide with one of the reactants used, e.g. a compound of Li and water and/or a compound of Li and an aldehyde and/or a compound of Li and an acid or a Li salt of the alumina support. It is suitable to employ Li compounds which are convertible to the oxide for making the catalyst compositions e.g. the carbonate, nitrate, acetate, oxalate or isobutyrate. The alumina support may be in any of its activated forms e.g. gamma, eta, chi, kappa or theta forms. The catalyst may be prepared by impregnating the alumina particles with an aqueous solution of a lithium salt and calcining prior to use in the reaction. Preferably 1-25% e.g. 5% by weight of Li is present in the catalyst. In the Example the catalyst is prepared by treating gamma-alumina tablets of surface area 80-100 sq. m/gm. and pore volume 0.28- 0.33 c.c./g with a LiNO 3  solution, then dried and calcined at 450‹C.
Patent GB-1343104-A (GB)
Title: Worm wheel
IPC: F16H55/22
Filed: 1972-07-19
Abstract: 1343104 Worm-wheel RHEINSTAHL AG 19 July 1972 [20 July 1971] 33759/72 Heading F2Q A worm-wheel comprises a gear rim 1 of a non-ferrous metal such as bronze and a hub of grey cast iron, the rim 1 having a web 3 which may be provided with bolts 4 as shown, or pins, screws, or depressions or notches in the web may be utilized, so that a positive connection between hub and rim is obtained when the hub is cast about the rim.
Patent GB-521522-A (GB)
Title: Improvements relating to television systems
IPC: H04N5/57
Filed: 1938-11-22
Abstract: 521,522. Television. KOLSTER-BRANDES. Ltd., and SMYTH, C. N. Nov. 22, 1938, No. 33949. Addition to 520,235. [Class 40 (iii)] The position of the picture image with respect to the screen in the television receiver described in the parent Specification is adjusted by adjusting or inserting a time delay device in the path of a synchronizing pulse train for a time base of the receiver. Television signals at a receiving station are fed to a high-frequency amplifier A and detector B, the output of which is applied through a video frequency amplifier C to a cathode ray tube D. From the detector B signals also pass to an amplitude filter E which separates the synchronizing signals and passes them through a variable time delay device G and thence to the line scanning unit H. The delay device is arranged to produce a delay of from half a line to one and a half lines and is normally set to a delay of one line so that the picture occupies the raster in the normal way and reduction and increase in the delay time move the picture to the right and left respectively. The method may be applied either to the vertical or horizontal positioning of the picture or to both. From the amplitude filter E there is also a direct connection to the frame scannin g time base F.
Patent GB-1523357-A (GB)
Title: Drink dispensing machines
IPC: B67D1/12
Filed: 1976-08-10
Abstract: 1523357 Drinks dispenser BARTON VENDING SERVICES Ltd 10 Aug 1976 [14 Aug 1975] 33951/75 Heading B8N A manually operated drinks dispenser with a set of nozzles for different main ingredients has a multi-tier pricing system which allows dispensing of a beverage from only the nozzles of beverages whose price has been paid, the nozzle of other higher price beverages being disabled. The dispenser also has control system which enables dispensing from only one nozzle and blocks dispensing from the other main ingredient nozzles. Each nozzle has an associated control responsive to actuation of a manual switch. The dispenser also includes a water dispensing system operated by a further manual switch. The ingredients which can only be individually dispensed are tea, coffee, chocolate, soup and fruit juice. The dispenser includes further nozzles to dispense additives such as sugar or creamer. The dispenser may be set for free dispensing or for coin freed operation. In the latter case a coin value detector system 61, 62, Fig. 5, is provided and high and low thumb wheel switches 67, 68 are set to enable dispensing only from the nozzle of a drink which has been paid for.  The control circuit includes a diode resetting network for the main ingredients and water channels, Fig. 3. Each network of the main ingredients A-D is disabled by a reset signal Ra-Rd from the other main ingredient networks and the water network Rg. The additive networks (e-f), are disabled by the water reset signal Rg and the soup reset signal Rd. The dispenser can be used for hot or cold drinks and includes a water heater 16, Fig. 1, and indicator lamps 18, 19, 22 to indicate when the water tank is empty or full and when the dispenser is ready for use. A free water switch (55), Fig. 4 (not shown), enables water dispensing whenever push button switch (311) is pressed. The nozzles each have a valve which is preferably a magnetically lifted ball operated by a solenoid.
Patent GB-410428-A (GB)
Title: Improvements in or relating to closures for sheet metal drums, kegs and like receptacles
IPC: B65D39/08
Filed: 1933-12-04
Abstract: 410,428. Metal drums &c. PILKING- TON, L. G., and FRANCIS & SONS, Ltd., F., Thames Ironworks, John Penn Street, Lewisham, London. Dec. 4, 1933, No. 33997. [Class 21.] A sheet-metal drum, keg, &c., e.g. for oil is formed with an outwardly projecting flange a<1> defining an orifice, the upper edge a<2> being turned over outwardly, a screwed socket b being driven into the orifice with a packing-ring c interposed to form a seating b<2> for a packing-ring d carried by a flanged plug e<1> adapted to screw into the socket. A flange b<1> of the socket b may be prevented from rotating by spot welding at say three points. A thin metal cap f may be beaded over the top a<2>.
Patent GB-1151086-A (GB)
Title: Method and Apparatus for Glass Manufacture.
Inventor: PLUMAT EMILE
IPC: C03B5/183
Filed: 1966-07-28
Abstract: 1,151,086. Glass manufacture. GLAVERBEL. 28 July, 1966 [11 Nov., 1965], No. 34021/66. Heading C1M. [Also in Divisions F4 and H5] A glass manufacturing process wherein batch is melted in a glass melting tank furnace provided with a sill over which molten glass flows towards the "hot spot" from the withdrawal end of the tank and wherein heat is supplied locally within the path of molten glass at the site of the sill so as to increase the temperature of the molten glass as it flows over the sill. In a preferred embodiment greater heat is supplied at end portions of the sill than in a central zone thereof. The plates of the sill may be covered by a material with good heat reflecting properties, e.g. platinum.
Patent GB-303566-A (GB)
Title: Coating compositions
IPC: C08K5/09
Filed: 1927-10-06
Abstract: 303,566. Marks, E. C. R., (Alox Chemical Corporation). Oct. 6, 1927. Divided on 303,560. Coating-compositions for use particularly in making artificial leather comprise nitrocellulose and a softening-agent consisting of the waterinsoluble carboxylic acid product obtained by contacting an oxygen-containing gas with a petroleum hydrocarbon mixture in liquid state at reacting temperatures and under pressure, for instance as described in Specification 303,560. The composition may comprise 50-5 parts of nitrocellulose and 50-95 parts of the softening-agent, a mixture of 25-15 parts of the former, 70-80 parts of the latter, 5 parts of pigments and fillers, and a suitable solvent and diluent being referred to. Solvents mentioned are ethyl and butyl acetate, and diluents benzol, alcohol, and gasoline.
Patent GB-1435526-A (GB)
Title: Electron bearm deflection tube
IPC: H01J29/70
Filed: 1973-07-18
Abstract: 1435526 Electron beam focusing and deflecting systems; X-ray tubes TEKTRONIX Inc 18 July 1973 [4 Aug 1972] 34143/73 Heading H1D An electron tube comprises cathode 40, an anode with beam limiting aperture 44, target 50 (e.g. light sensitive or silicon oxide storage), twisted and interleaved deflection electrodes 48 (also Figs. 3, 4 and 5, not shown) for generating a twisted electric field extending perpendicular to the tube axis at an orientation varying continuously and uniformly along the axis to provide two co-ordinate beam deflection, solenoid 25 producing a uniform oxide field proportional to the magnetic dwell angle which angle differs from the angle of twist of the E field by integer multiples of 2# radians, the B and E fields producing a helical motion of the beam so that the beam impinges orthogonally on the target and is scanned thereacross. The plane of deflection of the beam is also prevented from rotating away from the initial E field direction. Fig. 2 also includes grid 41, accelerator 42, barrel 45 providing field free drift space or prefocus lens according to potentials, deflection shield 46, and target mesh 49. Detailed theory is given for deflection and focusing operation for zero shading (i.e. right angle incidence on target), requiring # m =# e t2 n#  where # m  and # e  are the magnetic dwell and electric twist angles. Characteristics are produced in Figs. 7-14 (not shown). Solenoid 25 may extend past the target to reduce fringing fields. Deflection 48 may be produced photographically. Applications include high beam intensity microspot tubes scan converters, monochrome or colour TV projection apparatus, vidicon or image orthicon tubes, X-ray tubes or high power focused beam tubes for electron machining, welding or contour drilling.
Patent GB-1413233-A (GB)
Title: Condition responsive circuits
IPC: G05F1/45
Filed: 1973-07-19
Abstract: 1413233 Automatic control of temperature HONEYWELL Inc 19 July 1973 [21 July 1972] 34334/73 Addition to 1393935 Heading G3R A condition responsive circuit as in Specification 1393935 e.g. a temperature control circuit, wherein a temperature sensitive bridge 2 and differential amplifier 44 control the firing of a triac 64 that is in series with a heater 13 and the bias on the bridge 2 is at one of two levels according to the charge on capacitor C 1  i.e. upon whether the triac is fired or not, is modified by a discharge path through resistor R 7  for the capacitor C 1  to allow the charge on the capacitor to change rapidly between the two levels whenever thyristor 50 in the amplifier 44 is conductive.
Patent GB-500904-A (GB)
Title: Improvements relating to radial suction dredgers
IPC: E02F3/90
Filed: 1937-12-11
Abstract: 500,904. Dredgers. SIMONS & CO., Ltd., W., BROWN, A., and DAVIDSON, A. B. Dec. 11, 1937, No. 34368. [Class 113 (ii)] The turntable 2 of a suction dredger of the type described in Specification 164,789, [Class 113 (ii)], is turned on its pivot by a power-driven winch 6 which rotates a pinion 7 engaging an arcuate rack 8 fixed to the hull of the dredger 1.
Patent GB-1215186-A (GB)
Title: Improvements in or relating to the removal of liquid penetrants from a surface
IPC: G01N21/91
Filed: 1968-07-18
Abstract: 1,215,186. Penetrant remover composition. MAGNAFLUX CORP. 18 July, 1968 [12 Oct., 1967], No. 34402/68. Heading B1X. [Also in Division G1] A penetrant remover composition for use in the liquid penetrant method of testing for surface discontinuities comprises an aqueous solution of a surfactant, and preferably alkylphenoxy polyethoxy ethanol and a de-gelling agent such as ethylene glycol, or other water miscible glycols. Optional components include glycol ethers and esters, a corrosion inhibitor such as sodium nitrite and a dye such as xylene red.
Patent GB-367360-A (GB)
Title: Improvements in or connected with flat-bed cylinder printing presses
IPC: B41F3/58
Filed: 1930-11-17
Abstract: 367,360. Printing-machines. GARDNER, L. F., 173, Fleet Street, London. -(Rote-Press Akt.-Ges. ; 61, Monbijoustrasse, Berne, Switzerland.) Nov. 17, 1930, No. 34551. [Class 100 (ii).] Cylinder machines.- In a web-printing cylinder machine of the kind described in Specification 229,323, [Class 100 (ii), Printing processes &c.], in which a reciprocating slide b is fitted with two impression rollers a coacting with vertical printing-beds, and the rollers are rotated on the downstroke by means of segmental pinions g engaging fixed racks h, the drive of the impression rollers is controlled by means of pivoted racks p which can be brought into engagement with the teeth of auxiliary wheels n, Fig. 2, secured to the pinions g; the wheels n having teeth corresponding to the gaps in the pinions g. Each bed is fitted with two pairs of racks p which are pivoted to the bed at o and are interconnected by a link r. The racks are oscillated from a cam s on the shaft of the crank which reciprocates the slide b. The cam s actuates a lever u connected to a pair of thrust-rods q connected to the pivoted racks p. The cylinders a are also fitted with locking-levers b<1> provided with rollers c<1> which engage recesses a<1> in the cylinders and lock the cylinders as they move upwards over the beds out of contact with the forme. The levers b<1> are operated by means of guide rails e<1>, which are pivoted to the third arms of the rack levers p and cause the locking devices to come into action as the racks p move away from the gears n, and vice versa. In the machine shown, the slide b carries inking-rollers and the impression cylinders after moving from position A to position B corresponding to the length of the forme, move further to position C to enable the inking to be completed. The racks p are set to come into operation at position B and the cylinder is rotated while passing from B to C, and are reversed as the carriage returns from C to B. In a modification the auxiliary racks p are replaced by racks 17, Fig. 6, and rack levers 15 which are mounted so as to be capable of moving relatively to the slide b so as to start and stop the cylinders more gradually than would be the case if the racks were fixed relatively to the slide. These racks 15, 17 are connected to guide-rods 22 which are reciprocated by links 16 connected to a thrust member 27 which is reciprocated on guide-rods by a cam 32 on the shaft.of the operating crank for the bed b. The rod 22 is moved laterally so as to bring the racks 17, 15 into and out of engagement with the wheels n by means of curved slots 23 which are engaged by rollers 24 fixed to the bed. Impression rollers.-The cylinder a is made of light metal, e.g. aluminium, and for strength it is secured by bolts to flanged steel or like journals.
Patent GB-931055-A (GB)
Title: Improvements in or relating to oil suspension units
Inventor: BITTEL KARL
IPC: F16F9/18
Filed: 1959-10-14
Abstract: 931,055. Liquid springs: adjusting vehicle height. FLUGZEUGWERKE VEB. Oct. 14, 1959, No. 34746/59. Classes 108(2) and 108(3). A self-levelling liquid spring unit for a vehicle suspension comprises a cylindrical container 1 with a cover 2, a liquid compressing piston 5, passing through cover 2, with a plunger 13 on its end slidably guided in a pumping cylinder 14, an annular chamber 8 being formed between the piston 5 and cylinder 14 and valve means interconnecting the annular chamber 8 with a liquid reservoir 11. Damping is provided, when the piston moves, by passage of liquid through opening 15a in spring loaded plate 15 or radial holes in the lower end of cylinder 14. In operation when the piston descends liquid is sucked from reservoir 11 through non-return valves 18 into annular chamber 8 above the piston plunger 13 and then when the piston rises liquid is forced into the cylindrical container 1 through non- return valves 19 until the plunger passes the lower ends of the two grooves 14a on the inside of the upper part of cylinder 14 equalizing the pressures in the cylinder 14.When the piston rises too far flats 5a on the piston allow liquid to return from the pumping cylinder 14 to the reservoir thus lowering the vehicle.
Patent GB-492732-A (GB)
Title: Improvements in vapour generators
IPC: F22B37/14
Filed: 1936-12-18
Abstract: 492,732. Fluid-pressure servomotorcontrol systems; steam generators. BABCOCK & WILCOX, Ltd. Dec. 18, 1936, No. 34790. Void. Convention date, Dec. 18, 1935. Drawings to Specification. [Class 135] [Also in Group XIII] The subject-matter of this Specification is described in Specifications 482,059 and 490,455, [Group XIII].