baber/WOPTO huggingface dataset:
Patent GB-631151-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04B3/10
Filed: 1947-10-29
Abstract: 631,151. Automatic control systems for amplifiers. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and TERRONI, T. B. D. Oct. 29, 1947, No. 28817. [Class 38 (iv)] In an open-wire carrier telephone system, changes in the attenuation of the transmission circuit are counteracted so as to maintain the normal transmission level, by an amplifier, the gain of which is automatically adjusted in accordance with its output. As shown, Fig. 2, the incoming signal is applied to the primary of transformer TRA, of the level controlling amplifier LCA, the secondary of which energizes the potentiometer, comprising variable condensers C1, C2, which are mechanically coupled so that as one increases, the other decreases. The common point of Cl, C2 is connected to the grid of VA supplying the group amplifier GA, the output of which is applied to the pilot receiver PR, similar to that described in Specification 609,120, [Group XXXIX], and the pilot frequency is selected by filter PFF. The latter energizes the control equipment CE, in which the D.C. current is proportional to the level of the incoming signal. According as the line attenuation is ¢ a decibel above or below normal, so the contacts SL1 (H) or SL1 (L) are closed and the motor M, which positions C1, C2, is driven accordingly. A time delay is incorporated so that transient level changes do not effect the device. The change of gain of LCA, in decibels, is linear with respect to the angular movement of the motor M and a linearly-calibrated indicator may be mounted on the motor shaft.
Patent GB-679850-A (GB)
Title: Improved production of anion exchange resins
IPC: C08F8/44
Filed: 1949-11-10
Abstract: Water-insoluble anion exchange resins are prepared by reacting at a temperature of 25-100 DEG  C. a solid nuclearly halomethylated vinyl aromatic copolymer containing in chemically combined form 0.5 to 20 parts of a polyvinyl aromatic hydrocarbon of the benzene or naphthalene series and 99.5 to 80 parts of a monovinyl aromatic hydrocarbon of the benzene or naphthalene series, with a tertiary mono- or di-alkyl N-substituted alkanol or alkane-diol amine in such amount that at least one molecular proportion of the tertiary amine is present for each nuclear halomethyl radical in the copolymer. Monovinyl aromatic hydrocarbons specified are styrene, nuclear methyl, dimethyl, trimethyl, ethyl, and sec.-butyl styrenes, vinyl naphthalene and nuclear methyl vinyl naphthalene.  Polyvinyl aromatic hydrocarbons specified are divinylbenzene, nuclear divinyl toluene, xylene and ethylbenzene, and divinyl naphthalene.  Tertiary amines specified are dimethylaminoethanol, dimethylethanolamine, dimethylisopropanolamine, diethylethanolamine, methyldiethanolamine, methyldiisopropanolamine, dimethylpropanolamine, dioctylethanolamine, 1-dimethylamino - 2,3 - propanediol, 1 - diethylamino - 2,3 - propanediol, diethylisopropanolamine, and dibutylethanolamine.  The copolymers may be prepared by mass or dispersion methods with the aid of heat or light and polymerization catalysts such as benzoyl peroxide lauroyl peroxide, hydrogen peroxide, sodium perborate, ammonium persulphate and potassium persulphate.  In aqueous dispersion a protective colloid such as sodium cellulose glycollate, hydroxyethyl cellulose, or methyl cellulose, may be used to provide a granular copolymer.  The copolymers are halomethylated either by treatment with a halomethylating agent such as chloromethyl or bromomethyl ethers in the presence of a catalyst such as zinc chloride, zinc oxide, stannic chloride, aluminium chloride, tin, zinc or iron, and an organic liquid such as tetrachloroethylene, chlorobenzene, or an excess of halomethylating agent, or alternatively, when the copolymer contains methyl groups attached to the aromatic nuclei, by halogenation in the presence of an organic liquid such as benzene, chlorobenzene, o-dichlorobenzene, acetic acid, tetrachloroethylene, or carbon tetrachloride, and a catalyst such as phosphorus, phosphorus trichloride, or light.  The amination of the halomethylated copolymers is preferably carried out by dispersing the halomethylated copolymer in a mixture of the tertiary amine and a liquid such as water, acetone, or ethyl alcohol and heating at 70 DEG  to 100 DEG  in the presence of a catalyst such as cupric iodide, cuprous chloride, potassium bromide, potassium iodide and calcium iodide.  Specification 654,706 is referred to.  The Specification as open to inspection under Sect. 91, includes the general use of polyvinyl aromatic compounds and monovinyl aromatic compounds, such as nuclear chlorostyrene.  This subject-matter does not appear in the Specification as accepted.
Patent GB-262092-A (GB)
Title: Improvements in or relating to gas testing apparatus with pressure gauges, more particularly flue gas testers
IPC: G01N1/00
Filed: 1926-11-16
Abstract: 262,092. Siemens & Halske Akt.- Ges. Nov. 27, 1925, [Convention date]. Gas analysis.-A pressure gauge 4 forming a part of an apparatus for testing flue gases &c. is sealed by running water which is automatically maintained at constant level e.g. by an overflow, and also serves for cooling the gas passing through a worm 5. The body of flowing water 18 into which the gauge 4 dips may previously have been employed in a suction pump 3. After passing over a steam trap 10 and through the worm 5, the gas to be tested is led through filtering material 6 and a throttle 8 to the indicating device 14 provided with several gas chambers 13. Thence it is conveyed to the suction pump by a pipe 16 communicating with the pressure gauge 4. Most of the parts are carried by a cover 2 of the vessel containing the liquid, the gauge and pump being attached to a separate insertion 25 bolted to the cover. The filter 7 also has a separate lid to allow access to a bolt 22 which tightens packing 23 around the gas pipe.
Patent GB-652338-A (GB)
Title: Improvements relating to index and indicating devices
IPC: B42F17/34
Filed: 1948-11-06
Abstract: 652,338. Indexing; filing papers. JARRETT, RAINSFORD & LAUGHTON, Ltd., and CURRY, F. J. Nov. 6, 1948, No. 28894. [Classes 16 and 146 (i)] In an indexing device in which a desired card or leaf of a pack can be exposed at will on opening the cover of the device by first moving a slider or cursor along an indicating scale to the desired letter, figure or mark, the indicating scale bar is formed as an integral metal pressing with the cover by appropriately spaced incisions in the pressing and displacement of the metal between them or at the side margins of the incisions. The slider or cursor is also preferably formed as a metal pressing. An oblong cover 10 is pressed from sheet metal to have flanges 11 on two sides and one end, the other end being curved at 12 and gapped and flanged centrally at 13 to provide a resilient lip 16 to engage with a spring pressed catch 14 on the back plate 15 of the device. The rear flange 11 is formed with alternate rolled tongues 17, by which the cover is hinged to the back plate 15 on a hinge pin 18, and outwardly bent tongues 19 to engage tongues 20 on the back plate 15 to limit the opening of the cover 10. Parallel cuts are made in the cover to provide an indicating bar 21, marked or pressed with the appropriate letters, and short lateral cuts 22 outwardly so that the margins 23 may be pressed inwardly. A rib 24 is pressed in the bar 21 to stiffen it and grooves are pressed in the margins 23 to form ribs 25 to correspond with the letters on the bar 21. The cursor 26 is formed with a central recess 29 and with shallow flanges 27 at each end and deep flanges 28 which pass through the cover on either side of the bar 21 and have tongues 30 which pass through and are clinched over holes in a selector strap 31. The selector strap 31 has inwardly bent arms 33 to engage the edges of the cards on the back and has spring arms 32 curved upwardly to strap between adjacent ribs 25. For holding the cards, a metal strip 34 is hinged on the pin 18 and has tongues 36 to engage slots in the cards. The curved ends 35 of the strip 34 press against the flanges 11 and normally retain the strip 34 in the cover, but may be disengaged to allow the strip 34 to be moved out for the cover for removal or addition of cards on the tongues 36. The catch 14 on the back plate 15 is urged against the lip 16 by a flange 40 on a spring blade 37, the blade 37 being clinched against the back plate by pressed out lugs 38. In a suggested modification the side margins 23 are not depressed but the bar 21 is raised above the cover.
Patent GB-511107-A (GB)
Title: Improvements in and relating to stuffing boxes for compressors
IPC: F16J15/36
Filed: 1938-10-05
Abstract: 511,107. Stuffing-box substitutes. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 5, 1938, No. 28903. Convention date, Oct. 7, 1937. [Class 122 (v)] A stuffing-box substitute for compressors, particularly for refrigerating-machines, comprises a sealed housing 23 forming a chamber 17 separated from the interior of the main casing and surrounding the shaft 1 having fixed thereto a packing ring 14 against which bears a slidable ring 16 subjected to the force of a spring 18 and attached to one end of a bellows-like spring-casing 19 which is sealed in an airtight manner at its outer end, the chamber 17 being connected to the suction lead 6 of the compressor by a pipe 26 whereby the packing-surfaces are relieved from high pressure. The outer end of the casing 19 is soldered to a disc 20 which together with a packing-ring 21 is pressed against the housing 23 by a plate 22. Pressure in the chamber 17 may be maintained slightly above atmospheric pressure by providing a restricted passage or throttle valve in the pipe 26.
Patent GB-896472-A (GB)
Title: New azo colouring matters containing 2-hydroxyquinoline residues
Inventor: BUCKLEY DONALD
IPC: C09B39/00
Filed: 1959-08-24
Abstract: The preparation of substituted quinolines of formula <FORM:0896472/IV (b)/1> wherein the ring B is substituted by one or two halogen, alkyl or alkoxy substituents by condensing an appropriate m-phenylene-diamine with ethyl acetoacetate or diketene and treating the condensate with concentrated hydrochloric acid is described.  The preparation of 7-amino-2-hydroxy-4 : 5- and 4 : 6-dimethylquinolines, 7 - amino - 6 - chloro - or - methoxy - 2 - hydroxy - 4 - methylquinoline and 7 - amino - 2 - hydroxy - 4 : 5 : 8 - trimethylquinoline is detailed.ALSO:The invention comprises monoazo pigment dyes which in one of their tautomeric forms are of formula <FORM:0896472/IV (c)/1> wherein A is the residue of a coupling component free from sulphonic and carboxylic acid groups and the ring B has one or two halogen, alkyl or alkoxy substituents.  They are prepared by coupling a suitable diazotised 2-hydroxy-4-methyl-7-aminoquinoline (see Group IV (b)) with a coupling component free from sulphonic and carboxylic acid groups. The monoazo pigments are used to colour paints and polymers or in the printing of wallpaper and textiles in red, yellow and blue shades. Preferred diazo and coupling components are 7-amino-2-hydroxy-4 : 5- or -4 : 6-dimethylquinoline, 7-amino-2-hydroxy-4 : 5 : 8-trimethylquinoline and 7-amino-6-methoxy - 2 - hydroxy - 4 - methylquinoline; 2 - hydroxy - 3 - naphthoic - (41 - methoxy - 21 - methyl-anilide) or -(51-chloro-21 : 41dimethoxy-anilide), 1 - p - tolyl - 3 - methyl - 5 - pyrazolone and acetoacet-2 : 4-dimethyl- or -4-ethoxy- or -2-chloro- or -4-chloro-2 : 5-dimethoxy-anilide.  Many examples are described.
Patent GB-1078713-A (GB)
Title: Disposable diaper
IPC: A61F13/15
Filed: 1964-07-15
Abstract: 1,078,713. Diapers. JOHNSON & JOHNSON. July 15, 1964 [July 31, 1963], No. 29075/64. Heading A3V. A disposable diaper comprises an absorbent layer 22, a co-extensive facing sheet 21 and optionally a waterproof backing sheet 23, longitudinal margins being folded inwards at 25, 26 and secured to the body of the diaper at points 27, 28 spaced inwardly of the edges 24 to leave strips which may be further folded outwardly. For instance, the further folds may be parallel with the first folds, diverge towards one or both ends of the diaper to form a diaper wider at the end(s) than at the middle or diverge towards one end and converge towards the other. In an alternative embodiment, Fig. 8 not shown, the first folded portions secured to the body of the diaper are folded back underneath the diaper. The securing means may be adhesive, two-sided adhesive tape, or, if the facing sheet includes thermoplastic fibres, by the application of heat and pressure.
Patent GB-868992-A (GB)
Title: Improvements in suction pumps
Inventor: FORD VICTOR
IPC: A61M1/00
Filed: 1958-09-11
Abstract: 868,992. Raising liquids ; bellows pumps. PORTOVAC Ltd. Sept. 11, 1959 [Sept. 11, 1958], No. 29157/58. Classes 8(1) and 102(2). A bellows pump 6 is driven, through reduction gearing 5 from a battery driven electric motor 4. The suction side of the pump is connected to a suction bottle 16 whereby liquid may be drawn into the bottle ; a float actuated switch 24 stops the motor at a given liquid level. A control valve 14 and gauge 17 are included in the suction line. The outlet from the pump passes through a bacteriological filter 20. The various parts are in or on a portable casing 25.
Patent GB-933101-A (GB)
Title: Improvements in or relating to the extractive distillation of aqueous acetic acid
Inventor: PRYDE ALEXANDER WILLIAM HARROW
IPC: C07C51/48
Filed: 1958-09-11
Abstract: Aqueous acetic acid is concentrated by extractive distillation in a fractionation column in a process comprising introducing a mixture of concentrated sulphuric acid and strong acetic acid into the top or near the top of the column and feeding in the aqueous acetic acid lower down the column, the process being carried out so that the concentration of sulphuric acid in the liquid phase at the top of the column is between 10 and 35 mole per cent.  In an example, a mixture of strong sulphuric acid and glacial acetic acid is fed into the top of a 33 feet silicon iron fractionating tower packed with porcelain rings, a 60% acetic acid-to-be-concentrated is fed in at a point 18 feet from the base of the tower and steam is introduced into the base.  Acetic acid of over 98% purity is recovered as overhead distillate, and 58% sulphuric acid containing less than 0,2% of acetic acid is collected as bottoms.  Specification 22320/10 is referred to.ALSO:Aqueous acetic acid is concentrated by extractive distillation in a distillation column in a process comprising adding concentrated sulphuric acid with sufficient acetic acid to maintain the concentration of sulphuric acid in the liquid phase at the top of the distillation column between 10 and 35 moles per cent, to the top or near the top of the column and feeding in the aqueous acetic acid lower down the column.  In an example, strong sulphuric acid and glacial acetic acid are fed into the top of a 33 feet silicon iron fractionating tower and 60% acetic acid is fed in at a point 18 feet from the base of the tower and steam enters at the base.  Acetic acid of over 98% purity is recovered and 58% sulphuric acid containing less than 0,2 of acetic acid is collected as bottoms.  Specification 22320/10 is referred to.
Patent GB-175347-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M31/04
Filed: 1920-10-15
Abstract: 175,347. Hamilton, B. T. Oct. 15, 1920. Spray carburettors; vaporizers, external. -- A heavy-fuel carburettor comprises a number of fuel-supplying devices, each supplying fuel by suction and fuel in a predetermined quantity per unit of time, a mixture chamber divided into a corresponding number of compartments adapted to be opened or closed successivelv by the throttle, and a fuel vaporizing device interposed between the fuel-supplying devices and the compartmented mixture chamber to which the main air supply is directly admitted. As shown, two fuel-supplying devices, each supplied with fuel by the two methods referred to, open into passages 7 communicating with tubes 11 enclosed in a chamber 10 through which exhaust gases pass. The outlets 11<a> of the tubes are situated in a mixing-chamber 8 provided with an air inlet 14 and divided by a partition 15 into compartments which are brought into action in succession by a throttle 9. The passages 7 may be closed at the ends or may be provided with an automatically or hand-regulated air inlet. In a modification, the tubes 7 each open into a separate chamber provided with an outlet 11<a> and containing electrically heated devices such as plugs, grids or baffles. One or more of the compartments of the mixing chambers mav be provided with a nozzle or nozzles delivering light fuel for starting.
Patent GB-978064-A (GB)
Title: Improvements in or relating to movable outlet conduits on or for use in conjunction with pumps
Inventor: HARRIS HERBERT MONTAGUE
IPC: F16K31/58
Filed: 1962-07-31
Abstract: 978,064. Valves. MUNSTER SIMMS & CO. Ltd. Oct. 23, 1963 [July 31, 1962], No. 29310/62. Heading F2V. A movable outlet conduit on or for use in conjunction with pumps comprises a pipe 10 rotatably mounted in a bush 11 has a central bore 13 with a diaphragm 17 to prevent direct passage of fluid therethrough and at least two apertures 15, 16 located in the wall of the pipe, the bush having at least one longitudinal groove 18, rotation of the pipe causing the apertures to register with the groove when the conduit is " open " and with the smooth inner surface of the bush when the conduit is closed. In the preferred embodiment, a neoprene bush having a pair of longitudinal grooves surrounds a pipe having the shape of an inverted J while the diaphragm is formed by the base of an upturned metal cup 14. The outlet may be used with a hand-operated plunger pump adjacent the sink in a caravan or sailing craft.
Patent GB-208308-A (GB)
Title: Improvements in vehicle bodies
IPC: B60J1/08
Filed: 1922-10-27
Abstract: 208,308. Sunbeam Motor Car Co., Ltd., Coatalen, L., and Cooper, J. A. Oct. 27, 1922. Vehicle windows. - Vehicles provided with collapsable hoods, have the top rail E, Fig. 1, of the body and doors grooved to receive the lower edge of the window frame, the inside wall E<3>, Fig. 4, of the groove E<2> being preferably higher than the outer one. Spigots D<2> are provided at each end of the lower edge of the window frame to engage sockets in the rail and the cant-rail, and pillar are provided with rabbets to accommodate the window frame. The frame. may be of thin metal adapted to retain celluloid or like windows, and the spigots are constituted by downwardly-extending ends of rods formed with, or carried by, the sides of the window frame. Where two windows meet, the rear edge of the forward one overlaps the forward edge of the rear one.
Patent GB-1219649-A (GB)
Title: Novel dodecyl sulphoxides
IPC: C07C317/00
Filed: 1968-06-20
Abstract: 1,219,649. Sulphoxide-containing dodecane derivatives. UNILEVER Ltd. 20 June, 1968, No. 29450/68. Heading C2C. [Also in Division C5] The novel compounds dodecyl glyceryl sulphoxide, 2-dodecyloxyethyl methyl sulphoxide, dodecyl acetonyl sulphoxide, dodecyl 2- chloroethyl sulphoxide, dodecyl 2 - hydroxyethyl sulphoxide, dodecyloxyethoxyethyl methyl sulphoxide, dodecyl 2 - iodoethyl sulphoxide, dodecyl 2 - methylmercaptoethyl sulphoxide, dodecyl 2 - (2 - hydroxyethoxy)- ethyl sulphoxide, dodecyl 2 - methoxyethyl sulphoxide, dodecyl 2 - ethoxyethyl sulphoxide and dodecyl 2 - allyloxyethyl sulphoxide are prepared by oxidizing the corresponding sulphide by reacting a haloethyl sulphoxide with a sodium mercaptide or alcoholate, or by replacing chlorine by iodine with NaI to obtain the above iodo compound. Dodecyl acetonyl sulphide (novel) is prepared from dodecyl mercaptan and acetone. Dodecyloxyethyl methyl sulphide and dodecyloxyethoxyethyl methyl sulphide prepared from sodium methyl mercaptide and the appropriate chloride are also said to be novel as is dodecyloxyethoxy-ethyl chloride. Phonylhydrazones are prepared from dodecyl acetonyl sulphide and sulphoxide and the semicarbazone and oxime from the sulphide.
Patent GB-262108-A (GB)
Title: Improvements in or relating to guides for lifts
IPC: B66B7/02
Filed: 1926-11-22
Abstract: 262,108. Star, B. Nov. 25, 1925, [Convention date]. Cage and platform lifts. -Lift guides are formed of seamless tubes made in sections which are connected together internally by screwed sleeves, the guides being expansibly mounted in girders at their upper and lower ends. The tubes 1, Fig. 3, are connected together internally by screwed sleeves 9 engaging the screwed ends of the tube sections. The upper ends of the guides are supported on girders 2, Fig. 1, by nuts 3 and resilient washers 4. The lower ends of the guides are held in girders 5, Fig. 2. bv tensioning nuts 8.
Patent GB-1087029-A (GB)
Title: Phosphorothiolthionic esters
Inventor: OSBORNE GRAHAM OLIVER
IPC: C07F9/6521
Filed: 1966-07-01
Abstract: Novel compounds of the formula <FORM:1087029/C2/1> where R1 and R2 are the same or different and each represents halogen or an amino group in which one or both H atoms are replaced by alkyl, aralkyl or aryl, any of which may be substituted provided that only one of R1 and R2 may be halogen, and each of R3 and R4 represents alkoxy are prepared by reacting an ammonium or an alkali metal salt of a dialkyl-dithiophosphoric acid with at least an equimolar amount of 2,4,6-trichloro-1,3,5-triazine in the presence of an inert solvent and reacting the resulting dichlorotriazinyl phosphorothiol-thionic acid dialkyl ester with an aliphatic or aromatic amine.  Both stages of the reaction are preferably carried out below 20 DEG  C.  The aryl, aralkyl and alkyl substituents on the amino groups may be substituted, e.g. by halogen.  The compounds are bicides.  The compounds undergo reactions with anions, e.g. iodide and hydroxide ions, thus when 2,4-bis-(dimethylamino) - 5 - triazin - 6 - yl phosphoro-thiolthionic acid dimethyl ester is treated with NaI or subjected to alkaline hydrolysis the products are 2,4-bis-(dimethylamino)-6-iodo-s-triazine and 2,4-bis-(dimethylamino)-6-hydroxyl-s-triazine respectively. Specification 993,813 is referred to.ALSO:Biocidal, (including pesticidal and herbicidal) compositions contain, as active ingredient, a compound of formula:  <FORM:1087029/A5-A6/1> where R1 and R2 are the same or different and each represents halogen or an amino group in which one or both hydrogen atoms are replaced by alkyl, aralkyl or aryl, any of which may be substituted provided that only one of R1 and R2 may be halogen, and R3 and R4 represent alkoxy, together with a carrier or a surface active agent or both.  Suitable carriers are silicates, clays, elements, e.g. C and S, natural and synthetic resins, bitumen, ashphaltite, waxes, fertilisers, water, alcohols, ketones, ethers, hydro-carbons, and petroleum fractions. The surface active agent may be an ionic or a nonionic wetting, emulsifying or dispersing agent.  The compositions may be formulated as wettable powders, dusts, granules, solutions, emulsifiable concentrates and emulsions, and may contain other ingredients, e.g. protective colloids, polyvinyl alcohol sodium polyphosphates, cellulose ethers, stabilisers, other unspecified herbicides or pesticides, and stickers.