baber/WOPTO huggingface dataset:
Patent GB-311370-A (GB)
Title: Improvements in illuminating bodies with concave roflector and diffusely radiating incandescent bulb
IPC: F21V23/00
Filed: 1929-04-18
Abstract: 311,370. Zeiss, C., [Firm of]. May 10, 1928, [Convention date]. Multiple - filament lamps.-A lamp having a concave reflector c and intended principally for operating surgeons' use is fitted with a bulb d having two filaments f<1>, f<2> and a lightdiffusing envelope. The two filaments are connected in separate circuits so that if one filament fails the other can be brought into use by means of a switch l.
Patent GB-1048631-A (GB)
Title: Improvements in or relating to injection moulding tools
Inventor: BROOKER BERNARD FREDERICK
IPC: B29C45/43
Filed: 1963-03-27
Abstract: 1,048,631. Injection moulding apparatus. PREMIER INJECTION MOULDINGS Ltd. Jan. 31, 1964 [March 27, 1963], No. 12117/63. Heading B5A. An article such as a battery box having at least two parallel sides of constant thickness and of length greater than six inches is made from thermoplastic material by injection moulding. In one example an injection mould comprises a fixed portion 6, a movable portion 5, and a core 10 which is accurately positioned by means of a block 21 which bears against inclined surfaces 22, 23 on the core 10 and a fitment 24 respectively. Material is injected through two sprues 25 (see also Fig. 5, not shown). A stripper plate 13 having a phosphor bronze wear plate 14 strips the moulded article off the core 10 when the latter is withdrawn by hydraulic means (not shown). A valve stem 12 extending through a passage 11 in the core releases the vacuum when the core is withdrawn. The article is removed from the mould portion 6 either manually or with the aid of air blow-off valves 26. The core is heated by a continuous water tube 20. In a second example (Fig. 10, not shown), the mould comprises an integral core 101 and forged bolster 102. Injection is effected through a sprue 111. Heaters 109, 110 are provided, the former being oilfilled. When the core 101 is withdrawn, removal of the article therefrom is effected by a stripper plate 105 when elements 115, 117 on a stripper rod 112 contact the plate 105 and a surface 118 respectively.
Patent GB-399583-A (GB)
Title: The manufacture of dyestuffs containing sulphur
Filed: 1932-04-27
Abstract: Dyes of the thiazine-quinone type are prepared by condensing an arylenethiazthionium chloride with an aromatic compound containing in the molecule in addition to the primary or secondary amino group at least one -SO2NH-group, either the sulphur or the nitrogen atom of this group being attached to the aryl radicle, subjecting this product to alkali reduction and condensing the resulting o-aminomercaptan with an arylquinone (cf. Specification 265,641, [Class 2 (iii), Dyes &c.]).  The introduction of the -SO2NH- group into the arylamino substituent attached to the thiazine nucleus results in an easy solubility in the sodium sulphide bath and in dyes of fast bright shades.  In an example the condensation product of 3-methyl-5-chloro-1.2-phenylenethiazthionium with p-aminodiphenyl-p<1>-sulphanilide according to the process of Specification 265,498, [Class 2 (iii), Dyes &c.], the product saponified and converted to the zinc mercaptide and condensed with chloranil to give a bright greenish-blue vat dye.  A table gives the properties of the corresponding dyes derived by replacing p-aminodiphenyl-p<1>-sulphanilide by the following amines :--4 - aminophenylsulphanilide, N - (b -naphthyl)-3-aminophenylsulphonamide, N-(4<1>-aminophenyl) - benzenesulphonamide, N - (4<1>-aminodiphenyl)-benzene- and 4-chlorbenzenesulphonamides, N - 2 - (4<1>-aminodiphenyl)-benzenesulphonamide, p - aminodiphenyl - p<1> - (3<11>-chloro- and 2<11>-methoxy-sulphanilides), 4-aminodiphenylether - 2 - sulphanilide, 2 - aminonaphthalene-7-sulphanilide (all dyeing blue shades). Sulphanilido derivatives specified above are prepared as follows:--p<1>-nitrobenzenesulphochloride is condensed with aniline and the corresponding m-derivative with b -naphthylamine followed by reduction to give 4-aminophenylsulphanilide and N-(b -naphthyl)-3-aminophenylsulphonamide respectively; p-nitrodiphenyl-p<1>-sulphochloride is condensed with aniline, m-chloraniline, and o-anisidine followed by reduction to give the sulphanilide, 3<11>-chlorsulphanilide and 2<11>-methoxysulphanilides of 4<1>-aminodiphenyl; benzenesulphochloride is condensed with p-nitraniline followed by reduction to give N-(4<1>-aminodiphenyl)-benzenesulphonamide, and with 4-acetylamino-2<1>-aminodiphenyl followed by saponification to give N-2-(4<1>-aminodiphenyl)-benzenesulphonamide, 4-nitrodiphenylether-2-sulphochloride is condensed with aniline and reduced to give 4-aminodiphenylether-2-sulphanilide, and 2-acetylaminonaphthalene-7-sulphochloride with aniline followed by saponification to give 2-aminonaphthalene - 7 - sulphanilide. Azobenzene is condensed with benzene- and p-chlorbenzene-sulphinic acids, the products reduced to hydrazo derivatives and converted to N-p<1>-aminodiphenyl-benzene and 4-chlorbenzene sulphonamides respectively in known manner.
Patent GB-1138957-A (GB)
Title: Production of cleve's acid
Inventor: LEIGHTLE GEORGE BROOME
IPC: C07C309/47
Filed: 1966-03-18
Abstract: 1,138,957. Amino-naphthalene sulphonic acids. GENERAL ANILINE & FILM CORP. 18 March, 1966 [29 March, 1965], No. 12154/66. Heading C2C. A mixture of 5- and 8-aminonaphthalene-2- sulphonic acids (Cleve's acid) is prepared by reducing a mixture of 5- and 8-nitro naphthalene-2-sulphonic acids by treatment with finely divided iron and sulphuric acid at 95- 98 C., filtering the product, evaporating the filtrate to a concentration of 8-20% by volume of amino-naphthalene sulphonic acids, treating the resulting concentrated filtrate with zinc dust at 60-70 C., treating the product with a mineral acid at 20-70 C. and filtering off the required acids.
Patent GB-454517-A (GB)
Title: Improvements in or relating to stationary drying kilns
IPC: F26B21/00
Filed: 1935-04-26
Abstract: 454,517. Drying systems. KALOROIL BURNERS, Ltd., and GOLDBERG, A., Victoria Road, Park Royal, London. April 26, 1935, No. 12540. [Class 34 (ii)] A method of drying hops or like materials in a kiln, Fig. 1, comprises mixing the products of combustion with any necessary additional air before they are discharged under forced draught into the kiln and up through the material to be dried. A steel housing 4 is passed through a wall 5 of the kiln, half in and half out. A fire brick furnace 6, Fig. 2, with an oil burner 7 is provided in the outer half. Oil is fed by the aid of a compressor 9 motor driven at 11. At the inner end of the housing 4 is a fan 13 which discharges air from the housing 4 into the kiln space 1. Between the burner 7 and fan 13 the housing forms a mixing and combustion chamber. In the roof of the housing are apertures 20, 21 one outside and one inside the kiln. A sliding damper 22 can be adjusted to close or partially close one aperture and open the other. The volume or air discharged is constant but the proportions of outside and inside air can be varied as desired. Supplementary air intakers might be arranged in the housing 4 with independent dampers to give finer adjustments.
Patent GB-910549-A (GB)
Title: Improvements in and relating to fluid flow control valves
Inventor: STEPHENS WILLIAM THEODORE
IPC: F15B13/08
Filed: 1961-04-07
Abstract: 910,549. Valves; hydraulic apparatus. PARKER HANNIFIN CORPORATION. April 7, 1961, No. 12607/61. Addition to 864,499. Classes 69 (2) and 135. The invention relates to a control valve as described in the parent Specification, but the first passage 81, and the outlet port 24a, have means for selectively opening and closing them, e.g. screw plugs 82, 25a, for establishing a connection between the common exhaust chamber 24 and either the by-pass passage 29 or the housing exterior. Port 83 is always open and leads to sump 19 when one control valve unit is used alone or as the last in a series, or leads supply pressure at 16 in the first unit A via by-pass passages 30, 29 to the inlet chamber 15 of the second unit B. The lowermost land of the valve to bores 12 controlling the single-acting motor 65 or 86 is shortened so as never to close the by-pass passage.
Patent GB-530107-A (GB)
Title: Improvements in and relating to frequency controlling systems
IPC: H02J3/08
Filed: 1939-04-27
Abstract: 530,107. Synchronizing. BRITISH THOMSON-HOUSTON CO., Ltd. April 27, 1939, No. 12642. Convention date, April 28, 1938. [Class 38 (iv)] [Also in Group XXXVI] Two A.C. systems 1, 2 are synchronized by controlling, with the motor 12, the governor 11 of the prime-mover 8 of the generator 5. The motor 12 is controlled in either direction by the relay 36 which connects to it, selectively, sources 48, 49. The relay 36 is operated by either of coils 38, 39, which cause it to move in opposite directions, depending upon the polarity of the voltage across an inductance 26; the coils being included in polarity responsive circuits containing oppositely directed rectifiers 32, 34. Inductance 26 is in series in the output circuit 25 of a rectifier system 15, connected to the A.C. supply 1, and composed of valves 16-21 containing an ionizable gas or vapour. The grids of the valves are controlled by the supply 2 through the transformer 29. The output current through load 25 increases gradually and falls abruptly to zero or rises abruptly and falls gradually to zero depending upon whether the frequency of system 2 is greater or less than the frequency of system 1. Due to the abrupt changes in current, voltage peaks are produced across inductance 26 the polarity of which depends upon the relative frequencies of the supplies. The appropriate coil 38 or 39, is energized through its associated rectifier, to cause change in speed of the alternator 5 in the necessary direction to reduce the frequencies of systems 1 and 2 to the same value. It is stated that any conventional synchronizing means may be employed to effect synchronization of circuits 1 and 2 after the frequency of the circuit 2 is substantially equal to that of circuit 1. This synchronizing apparatus may be interconnected with the arrangement shown to effect energization of the actuating coil 4 of the circuit-breaker 3 at the desired time. Indicator circuits comprising lamps 46 may be provided in association with the relay 36 to show whether the speed of prime-mover 8 is high or low. Reference has been directed by the Comptroller to Specifications 411,100 and 423,323 and U.S.A. Specification 2,018,268.
Patent GB-1444612-A (GB)
Title: Process for the production of aminoanthraquinones
IPC: C09B1/22
Filed: 1973-08-06
Abstract: 1444612 Aminoanthraquinones by hydrogenation of nitroanthraquinones SANDOZ Ltd 6 Aug 1973 [8 Aug 1972] 12709/76 Divided out of 1444611 Heading C4P A process for the production of an aminoanthraquinone from a nitroanthraquinone comprises hydrogenating the nitroanthraquinone in excess of the theoretical amount of hydrogen to overhydrogenated aminoanthraquinone, in the presence of a hydrogenation catalyst and in an inert organic solvent in which the resulting aminoanthraquinone is soluble and the catalyst insoluble, removing the catalyst from the resulting aminoanthraquinone solution, removing the aminoanthraquinone and oxidizing the remaining over-hydrogenated aminoanthraquinone to aminoanthraquinone. The process may be conducted batchwise or continuously. Suitable nitroanthraquinones are the 1-nitro-, 2-nitro-, 1,2-dinitro-, 1,6-dinitro-, 1,7-dinitro-, 1,8-dinitro-, 1,5-dinitro-, 2,7-dinitro- or 2,6-dinitroanthraquinones or mixtures of such nitroanthraquinones. The inert organic solvent may be an aromatic hydrocarbon, an ether such as anisole, phenetole, hydroquinone dimethylether or resorcinol dimethyl ether, a glycol ether or an ester such as ethylbenzoate. Suitable hydrogenation catalysts include noble metal catalysts such as Pt or Pd on a carrier. Other reaction conditions are a temperature of between 50 and 200 C. and a hydrogen partial pressure of 0À5 to 15 atmospheres. The overhydrogenated product may be recycled and oxidized to the aminoanthraquinone by reaction with, e.g. nitroanthraquinone or hydroxylaminoanthraquinone.
Patent GB-1385229-A (GB)
Title: Polyvinylidenefluorides
IPC: C08F4/34
Filed: 1972-03-17
Abstract: 1385229 Polyvinylidene fluoride DIAMOND SHAMROCK CORP 17 March 1972 [18 Mareh 1971] 12754/72 Heading C3P Vinylidene fluoride is polymerized in aqueous emulsion in the presence of #-hydroxyethyl tbutyl peroxide, an alkylene oxide having up to 8 carbon atoms and a water soluble fluorinated surfactant, at a temperature of 80-110‹ C. for 0À5 to 6 hours at a pressure of 1500-5000 p.s.i.g., maintained by applying hydrostatic pressure. The reactor is thus maintained liquidfull. In examples ethylene oxide and ammonium perfluorooctanoate are used as alkylene oxide and surfactant respectively. Isopropanol may also be added as a chain transfer agent. The polymer is very suitable for use in coatings for example compounded with titanium dioxide, an acrylic copolymer zinc dicyclohexyl dithiophosphinate, and a solvent mixture of γ-butyrolactone and isophorone. Comparative examples of polymerizations using other initiators, e.g. disuccinic acid peroxide, peroxy maleic acid, tbutyl peroxypivalate and hydrogen peroxide/ sodium formaldehyde sulphoxylate, or omitting some ingredients are also described. Reference has been directed by the Comptroller to Specification 1,312,036.
Patent GB-119066-A (GB)
Title: Process of Treating Hydrocarbon Oils and the Product.
Inventor: PAYNE TOD
IPC: C10L1/04
Filed: 1917-09-06
Abstract: 119,066. Payne, T. Sept 6, 1917 Oils for burning.-A fuel analogous to gasolene is obtained by subjecting hydrocarbon oils derived from petroleum, asphalt, bitumen, resin, bituminous shale, &c. to a treatment consisting in lowering the temperature and increasing the pressure of the liquid in successive stages and at each stage introducing a fuel gas, the product being thereafter restored to substantially atmospheric pressure and temperature. For example, kerosene may be reduced to about 32‹ F. under six atmospheres pressure and about five volumes of coal gas forced in; the pressure may then be increased to eight atmospheres and the temperature lowered to about 0‹ F. and about eight volumes of Pintsch gas introduced; or coal gas, acetylene, and hydrogen may be successively introduced into kerosene at temperatures and pressures ranging to -32‹ F. and 15 atmospheres. The product is preferably kept under a pressure slightly above atmospheric.
Patent GB-465762-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/38
Filed: 1936-05-06
Abstract: 465,762. Arc - - discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. May 6, 1936, No. 12802. Convention date, May 11, 1935. [Class 39 (i)] To maintain constant the ignition point in each cycle of the alternating potential applied to an arc-discharge tube, the starting electrode, which projects into the cathode pool, is so formed that a change in resistance of the starting-current circuit due to variations in the level of the pool is compensated for by a change in the diameter of the line of contact with the surface of the pool. The starting electrode 10, which may have the shape shown in Fig. 2, and may consist of tungsten or silica carbide mixed with clay, is held in a member 16 swaged to the conductor 11. A lateral stem 3 supports the conductor 11 which is partly screened by a glass tube 12. The tube is adapted to supply rectified current to a load 19 such as a spot-welding device and the starting circuit includes a resistance 22 and a thermionic or oxide rectifier 23. The anode 7 consists of graphite or molybdenum and the conductor 5 is secured to the device through a glass to metal seal 6. A mercury or gallium cathode may be used.
Patent GB-1038507-A (GB)
Title: Float valve
Inventor: SAIT PETER ALFRED
IPC: B63B13/00
Filed: 1964-03-26
Abstract: 1,038,507. Valves. ESSO RESEARCH & ENGINEERING CO. Jan. 29, 1965 [March 26, 1964], No. 12920/64. Heading F2V. A float valve suitable for controlling the level of the interface between two immiscible liquids of differing density, e.g. oil and water, in an oil tanker cargo space, comprises a tube 1 having one end 2 open for connection to a pump or syphon and the other end closed by a plate 3, a sleeve 4 slidable on the tube to control ports 11 in the lower end thereof, and a doughnutshaped float 6 mounted on the sleeve. A perforated skirt 7 attached to the sleeve reduces turbulence and prevents entrainment of foreign bodies in the ports 11. A bellows 8 and a seating 9 in the plate 3 serve to prevent ingress of liquid to the space between the sleeve and the tube when the valve is closed. In operation, with the interface 10 in the position shown in the left-hand side of the Figure, water is drawn off until the interface lowers to the position shown in the right-hand side of the Figure, at which point the valve is closed. If oil is required to be drawn off instead of water, the valve is inverted.
Patent GB-310541-A (GB)
Title: Improvements in or relating to composite sheet material
Filed: 1929-04-26
Abstract: 310,541. Celluloid Corporation, (Assignees of Ximenez, M. R.). April 27, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Coated fabrics; compound fabrics.-A composite sheet material for use for example as floor or wall covering, panelling, insulation or ornamentation, is formed by embedding an openwork or reticulated reinforcement such as metallic wire netting in a composition comprising pyroxylin, cellulose acetate or other cellulose ester or ether and fillers. The reinforcement may be laid between two layers of the composition and united by the application of heat and heavy pressure, the surfaces next the reinforcement being previously softened by solvent if necessary, or a cement may be used. Alternatively the reinforcement may be embedded in the composition while the latter is still plastic, by rolling and hot pressing. A layer of any desired composition may then be applied to one or both sides of the reinforced material to obtain a fine surface. In a particular example the plastic composition comprises, in addition to the cellulose compound, camphor, or camphor substitute, powdered asbestos, calcium sulphate, colouring matter, for example, ultramarine blue, ethyl acetate and alcohol. Other reinforcements specified are sufficiently stiff openwork fibrous material or netting and flexible perforated metal.
Patent GB-244992-A (GB)
Title: Improvements in inhalers
IPC: A61M15/06
Filed: 1925-05-20
Abstract: 244,992. Breir, J. May 20, 1925. Inhalers.-An inhaler made in the form of a tobacco pipe comprises a bowl 1 fitted with a hinged lid 6 and with a detachable perforated lining 3 containing bodies which afford a large evaporating surface, such as perforated glass beads 5. The stem is provided with a plug 8 carrying a tube 9, one end of the tube being screwed to receive the mouthpiece 10 and the other end projecting into the stem to prevent entry of liquid into the mouthpiece. The bowl and the stem may be made of glass coated with vulcanized rubber or the like. The liquid 4 of which the vapour is to be inhaled is contained in the bottom of the bowl, and in use the lid 6 being closed. the appliance is inverted, to moisten the heads 5. Thereafter the lid is opened and air is inhaled through the heads. The appliance may be modified by the attachment of nasal jets to the mouthpiece.
Patent GB-977332-A (GB)
Title: Improvements in or relating to the production of formaldehyde
IPC: B01J8/18
Filed: 1961-04-12
Abstract: Formaldehyde is produced by the oxidation of methanol with air in the gaseous phase in the presence of a catalyst comprising a metal oxide in a fluidized or agitating bed, the methanol being fed into the apparatus in a concentration which lies within the explosive range which is defined as a methanol/air ratio between 6.0 and 36.5% by volume. The catalyst may be supported on an inert carrier and, for example, may be a mixture of Fe2O3 and MoO3.
Patent GB-528297-A (GB)
Title: Improvements in or relating to heat exchange elements
IPC: F28F9/18
Filed: 1939-05-03
Abstract: 528,297. Making heat exchangers. CLAYTON DEWANDRE CO., Ltd. May 3, 1939, No. 13226. Convention date, July 12, 1938. [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] Coiling: soldering. Ring shaped heat exchanger tubes of flat section, particularly for surrounding a fan for air heaters for motor cars are formed with flat side walls extending in a plane perpendicular to the axis of the ring and connected by narrow end walls, the side walls being formed from flat strips by winding them edgewise into helical form. A strip 21, Fig. 7, is coiled edgewise on a rotating mandrel 22, creasing and distortion being prevented by a spring-pressed holder 23. The strip may then be drawn into V-form, then formed with flanges 14, 14<SP>1</SP>, Fig. 2, and finally bent into ,oblong section, Fig. 3, and the edges seamed. The tubes may be used in this form or subdivided into ring-sections. Each tube may alternatively be formed from a pair of wound strips 15, 16, Fig. 4, of equal width which are bent to the form shown and provided with reamed edges 20. Other forms are shown in Figs. 5 and 6. In these forms the wound and shaped parts may be assembled by screwing one into the other and then joined together. The ends of the rings 24, Fig. 8, are inserted into walls 24<SP>1</SP> of distributor casings 25 provided with inlet and outlet tubes 26. For this purpose the flat sides of the tubes are grooved at 28 near their ends and the edges are slit and the slit portions bent over to form tapered ends as shown at 30, 31, Fig. 10. The grooves form stops when the ends are inserted into the walls and the projecting parts are flared over to secure them in position. Corrugated strips 27 are placed between the rings. If desired, smaller rings connected with the walls may also be arranged inside the spaces between the inner edges of the rings. After assembly, the article is dipped in molten metal to seal the parts together, excess molten metal being removed by a centrifuge into which the article is placed and rotated round its axis.
Patent GB-254066-A (GB)
Title: Improvements in and relating to the manufacture of sheet metal pipes
IPC: B21D5/01
Filed: 1925-05-20
Abstract: 254,066. Junkers, H. May 20, 1925. Pipes. - Long narrow pipes are made from sheet metal by feeding the sheet step by step to a looselymounted vertically-guided core and pressing it round the core by a succession of pressing strokes of swage members one of which at least is trough shaped; the holes for the rivets securing the longitudinal edges of the bent-up sheet may be formed prior to bending. The metal sheet 25 is fed intermittently between the core 8 and lower swage 9, and successive portions thereof are shaped by an upper swage 7 carried by a press beam 6 actuated by an eccentric 5, the feed of the sheet being effected by bands 12 attached by clamps 13 to the rear edge of the sheet and wound on a drum 14 by means of a ratchet wheel 16 and pawl 17 on a lever 18 connected by a rod 19 to a lug 20 on the eccentric 5. Spring- pressed rollers 10 adapted to retreat into the swage 9 serve to lift the work and the vertically. guided core 8 away from the lower swage between the strokes of the press to facilitate the feed of the work. A rail 24 guides the bent end of the sheet between the core and the upper swage 7. The bed 2 supporting the lower swage 9 acts against heavy springs 22 which compensate for the increased space between the swages when the bent sheet enters between the core 8 and upper swage 7. In the modification shown in Fig. 3, wherein the swage 9 is supported on a rigid bed 2, the increased space between the swages when the pipe is half formed is provided by moving a stepped block 30 slidable on the press beam 6. over to the right, and the guide rollers 36 and winding drum 14 for the bands 12 move up and down with the press beam 6.