baber/WOPTO huggingface dataset:
Patent GB-255892-A (GB)
Title: A process for the production of organic arseno compounds
IPC: C07F9/70
Filed: 1926-07-22
Abstract: 255,892. Binz, A., and Rõth, C. July 22, 1926. Organo arseno compounds are prepared by the reduction of arsinic acids, containing hydroxyl groups, but not containing amino groups, using aldehyde or ketone sulphoxylic acids as reducing means. The products, which may be unsymmetrical and may contain aliphatic, aromatic or heterocyclic nuclei, are wholly soluble in alkali. Reducing agents mentioned are the formaldehyde, diformaldehyde and acetone compounds of sulphoxylic acid. The acids are employed as such or liberated from their salts by mineral acids or excess of the arsinic acids themselves. The temperature is preferably kept below about 50‹ C. Examples are given of the reduction of (1) 2-oxy- 5-pyridinearsinic acid with sodium formaldehyde sulphoxylate and hydrochloric. acid, (2) a mixture of 2-oxy-3-bromo-5-pyridinearsinic acid and 2- oxy-5-pyridinearsinic acid with sodium formaldehyde sulphoxylate to give 2 : 6<1>-dioxy-3-bromo- 5:3<1>-diarsenopyridine, (3) 2-oxy-5-pyridinearsinic acid with sodium acetone sulphoxylate to yield 2 : 6<1>-dioxy-5 : 3<1>-diarsenopyridine, and (4) o-, m- and p-benzoarsinic acid with sodium formaldehyde sulphonate. 2-Oxy-3-bromo-5-pyridinearsinic acid is prepared by treating a solution of 2-oxypyridine-5- arsinic acid in glacial acetic acid with bromine. Sodium acetone sulphoxylate is prepared in solution by adding acetone to an aqueous solution of sodium hydrosulphite containing caustic soda.
Patent GB-483895-A (GB)
Title: Improvements relating to geysers and like water-heaters
IPC: F24H1/12
Filed: 1937-07-02
Abstract: 483,895. Water - tube hot - water boilers. AMSTUTZ, J. July 2, 1937, No. 18408. Convention date. July 3, 1936. [Class 64 (i)] Water-containing pipes 8 helically wound inside a casing 1 form a helical flue 3, the pipe coils being in close contact with each other and surrounding a central hollow member 4 serving as an inlet 12 for gases of combustion from an oil burner 9 and as their outlet 13 from the casing. Water entering at 14 passes first through a pipe 7 wound cylindrically, then passes down the pipes 16, 17 and through pipes 18-26 to an outlet 27. A mazout burner 9 is placed on a slide 11 pressed by a spring 10 against the member 4, which has apertures 12, 13 for flue gas.
Patent GB-1416377-A (GB)
Title: Device for the treatment of flexible sheet material
IPC: D06B19/00
Filed: 1973-04-17
Abstract: 1416377 Liquid treatment of webs TEXTILKOMBINAT COTTBUS VEB 17 April 1973 18479/73 Heading D1L Irradiated fabric webs are graft co-polymerized by passage through a grafting bath 6, the web 1 being guided between baffles 5 provided with surface projections which diverge in the running direction, in order to prevent curling of the web. The projections may be V-shaped rods 7 having a diam. of 5mm. The distance between the baffles 5 may be 8 mm. For Figures see next column
Patent GB-848328-A (GB)
Title: Improved salt crystals
Inventor: ALLDAY CONINGSBY
IPC: C01D3/24
Filed: 1956-06-15
Abstract: Non spherical crystals of sodium chloride of irregular shape or of sharp-edged cubic or other polyhedral shape of 0.8 mm. to 2 mm. linear size and a bulk density when poured exceeding 0.7 gm./cc. are prepared by evaporating brine under reduced pressure and allowing the salt crystals to grow for a sufficient period in the body of the supersaturated brine solution, wherein there is added to the brine in an amount less than that required to secure the formation of dendritic crystals of bulk density below 0.7 gm./cc., a water soluble compound having the formula A(MX6), where A is a cation and MX6 is a complex anion in which a metal M is associated with six not necessarily identical atoms or groups X, or a polyphosphate formed by reaction of ammonia with phosphorus pentoxide (e.g. victamide), or potassium silico tungstate, or a polyphosphate, or ethylene diamine tetra acetic acid, or sodium diethyl dithio carbamate, or ammonium dihydrogen phosphate, or a soluble bismuth salt, or extract of Carragheen Moss, or a cellulosic, or alginic hydrolysed homopolymeric longchain organic compound containing carboxylic acid side groups or a salt thereof. Specified substances include K4Fe(CN)6; Na3[Fe(CN)5CO]; ammonium polymethacrylate; sodium carboxymethyl cellulose; sodium alginate; hydrolysed polyacrylonitrile; and sodium hexametaphosphate.  The brine may be freed of calcium and magnesium and its pH adjusted to 8 or more prior to evaporation.  The evaporation may be conducted in one vessel and the supersaturated brine then flows through a bed of crystals in another vessel. Specifications 667,101 and 779,742 are referred to.
Patent GB-1418179-A (GB)
Title: Quinazolone azo pigments
IPC: C08L7/00
Filed: 1973-04-18
Abstract: 1418179 Quinazolone azo pigments BADISCHE ANILIN- & SODA-FABRIK AG 18 April 1973 [20 April 1972] 18621/73 Heading C4P Novel dyestuffs of the formula (wherein R<SP>1</SP> is H, Cl, Br or NO 2 ; R<SP>2</SP> and R<SP>3</SP> are each H or Cl; R<SP>4</SP> is H, Cl or CH 3 ; and X is CN or CONH 2 ) are prepared by diazotizing a 2- (amino-phenyl)-quinazolone-4 and coupling with a 2,6 - dihydroxy - 3 - X -4- methylpyridine. They may be conditioned by standard procedures, e.g. heating in glacial acetic acid. Pigments of various yellow shades are obtained. They may be used for the production of printing inks and the colouration of plastics materials, coating compositions, e.g. based on alkydmelamine resins, and rubber.
Patent GB-835892-A (GB)
Title: Manufacture of diaryloxazole derivatives
IPC: C07D263/64
Filed: 1956-06-15
Abstract: The invention comprises a process for making diaryloxazoles of formula <FORM:0835892/IV (b)/1> in which R1 and R2 are aryl residues and R3\t is an organic bridge member with at least one double bond between two carbon atoms, and also the new compounds of the above formula in which R1 and R2 contain at least one alkyl group having up to 4 carbon atoms and in at least one of the residues R1 and R2 the alkyl group or groups contain a total of at least 2 carbon atoms. The diaryl oxazoles are made by heating a compound of formula <FORM:0835892/IV (b)/2> with an agent that splits off water, e.g. sulphur trioxide or zinc chloride, to a temperature in the range 140-180 DEG  C.  When sulphur trioxide is used sulphonation also takes place.  The starting materials are obtained by condensing dihalides of unsaturated dicarboxylic acids, e.g. thiophene-2,5-dicarboxylic acid, with primary aryl amines having an hydroxyl group in the ortho position to the amino group, in accordance with the process described and claimed in Specification 835,891.  Examples are given of the preparation of the compounds of formul  <FORM:0835892/IV (b)/3> a ,b  - di - [5 - methylbenzoxazolyl - (2)] - ethylene disulphonic acid and its sodium salt, a ,b -di-[benzoxazolyl-(2)]-ethylene disulphonic acid, and <FORM:0835892/IV (b)/4> The products are optical brightening agents (see Group IV (c)), and may be used in the treatment of paper and cardboard (see Group VIII) and acetyl cellulose films (see Group IV (a)).ALSO:Diaryloxazoles of formula <FORM:0835892/IV(c)/1> in which R1 and R2 are aryl residues and R3 an organic bridge member with at least one double bond between 2 carbon atoms are made by heating a compound of formula <FORM:0835892/IV(c)/2> with an agent that splits off water, e.g. sulphur trioxide or zinc chloride, to a temperature in the range 140-180 DEG  C.  When sulphur trioxide is used sulphonation also takes place.  Compounds in which R1 and R2 contain at least one alkyl group having up to 4 carbon atoms, the alkyl group or groups containing at least 2 carbon atoms, are claimed per se. The products are brightening agents.  Examples are given of the preparation of <FORM:0835892/IV(c)/3> a .b  - di - [5 - methylbenzoxazolyl - (2)] - ethylene disulphonic acid and its sodium salt, a .b -di-[benzoxazolyl-(2)]-ethylene disulphonic acid and <FORM:0835892/IV(c)/4>ALSO:Compounds of the formula <FORM:0835892/IV (a)/1> in which R1 and R2 are aryl residues and R3\t an organic bridge member with at least one double bond between 2 carbon atoms, are used for the optical brightening of nitro cellulose lacquers and acetyl cellulose films.  In an example 0.25 part of a -b -di-[5-methylbenzoxazolyl - (2)] - ethylene is added to 100 parts of an acetyl cellulose mass containing 24% of acetyl cellulose.  The film produced from this mass has a brighter appearance than one containing no oxazole compound.
Patent GB-613358-A (GB)
Title: Improvements in the production of articles from multi-coloured plastic materials by extrusion
IPC: B29C48/17
Filed: 1946-06-21
Abstract: 613,358. Moulding multi-coloured rods, tubes &c. by extrusion. DELORME, J. June 21, 1946. No. 18755 Convention date, June 22, 1945. [Class 87 (ii)] In an apparatus for extruding multi-coloured plastic bodies, plastic substances of, e.g, two different colours are forced through tapped openings 3a, 3b and passages 12a, 12b into annular grooves 11a, 11b provided in the inner wall of a hollow feed chamber 2. These grooves communicate through holes 8a, 8b with two series of bores 7a, 7b in a cylindrical distributing core 6 whereby the plastic is delivered to a draw plate 4. The core 6 may be rotated or may be stationary.
Patent GB-456175-A (GB)
Title: Improvements relating to boilers supplying steam to sterilizing apparatus for use in dairies
IPC: F22B5/00
Filed: 1935-07-01
Abstract: 456,175. Steam boilers without internal flues. YOUNGMAN, F. C., 35, Gunton Drive, Corton Road, North Lowestoft. July 1, 1935, No. 18760. [Classes 64 (i) and 123 (ii)] A boiler for supplying steam'to sterilizing- apparatus for use in dairies consists of a vertical cylindrical vessel 1 supported on surrounding brickwork furnace walls 5 by a flange 4 formed by an annular plate welded to the top of the vessel. The inner part of the annular plate forms a seating for a steamtight cover 8 secured by a hinged cross-bar 10. Hot water is drawn off through a pipe 16.
Patent GB-980401-A (GB)
Title: A process for the preparation of cyclic ethers
IPC: C07D305/06
Filed: 1963-05-13
Abstract: Cyclic ethers of formula <FORM:0980401/C2/1> in which each R represents a hydrogen atom, an alkyl group or a phenyl group and n is 1, 2 or 3, are prepared by reacting at elevated temperature an alkylene halohydrin of formula <FORM:0980401/C2/2> in which X is a halogen atom, with an alkali metal hydroxide in a tertiary alkanol. Preferably the process is carried out at the boiling point of the reaction mixture.  The tertiary alcohol preferably contains 4-8 carbon atoms and is used in such amount that the alkylene halohydrin forms less than 40% by weight of the reaction mixture.  Examples are given of the preparation of oxetane, 3,3-dimethyloxetane, 3,3-diethyloxetane, 2-methyloxetane, 2,3-dimethyloxetane, 3 - ethyl - 2 - propyloxetane, 2,3,3 - trimethyloxetane, tetrahydrofuran, tetrahydropyran and 2-phenyloxetane.
Patent GB-205175-A (GB)
Title: Improvements in or relating to feed water heating apparatus for locomotive and like boilers
IPC: F22D1/42
Filed: 1922-07-10
Abstract: 205,175. Trevithick, F. H. July 10, 1922. Feed-water, heating. - In locomotive and like boilers feed-heating tubes a at either or each side of the smokebox are connected to inlet and outlet headers such as c, Fig. 5, external to the smokebox shell. The tubes a are joined to the headers c by tubes of reduced diameter which deliver through smaller holes e in a plate d to distribute the feed-water equally. In the example shown, flue gases pass from the fire tubes, between the tubes a and forward between them and the smokebox shell, through apertures k in a plate j to the interior of a chamber f mounted on the smokebox door l. When the door is closed the chamber connects the blast pipe with the chimney i. During firing-up, direct access to the chimney is provided for the hot gases through holes m in the chamber wall, covered ordinarily by plates o. The water can be preliminarily heated in an exhaust steam heater q of tubular form supported on the boiler shell, supplied with steam from the blast pipe by one of the tubes a suitably connected.
Patent GB-741585-A (GB)
Title: Improvements in or relating to solvent extraction
Inventor: KARNOFSKY GEORGE BENJAMIN
IPC: C11B1/10
Filed: 1953-07-08
Abstract: <PICT:0741585/III/1> Apparatus for extracting fatty oils from solids, such as seeds and nuts, with solvents comprises an extractor 1 with a solids outlet 20 connected to a solids desolventizer 2 to receive the solids after extraction, the desolventizer being arranged to return the evolved vapour directly to the extractor. In the preferred plant shown a desolventizer 3 for the miscella obtained from the extractor is also provided and the solvent vapour therefrom is also returned directly to the extractor.  The extractor is provided with a vapour outlet 28 communicating directly with a condenser 4, which discharges condensed solvent directly into the extractor.  The extractor is preferably of the type described in Specification 739,602 comprising a series of cells 17 rotated in an annular horizontal path with hinged base doors 18 allowing continuous drainage of solution to compartments 21 therebeneath and opening above the solids outlet 20. A slurry of the solids to be extracted and solvent is maintained in the feeding screw 12 and forms a vapour seal for the extractor.  The contents of the compartments 21 are pumped through lines 25 to the appropriate nozzles 26 above the cells to obtain countercurrent flow of liquid.  The condenser 4 is of the U-shaped tube type cooled with water.  The condensate distributer 82 is formed with a slot 84 radial to the cells 17.  A fan 35 connected to a vent 34 ensures a slight vacuum in the plant.  Fresh solvent is supplied through line 37.  The extracted solids are preferably heated in the desolventizer 2 by superheated solvent vapours.  The solids are cascaded through the desolventizer by a helical blade 40 and bars 41 rotated by a motor. The vapours rising in domes 45 are blown through a superheater 48 opening into the desolventizer.  The miscella desolventizer 3 comprises a preheater 57, evaporator 59 and a vapour-liquid separator 65.  The final miscella is pumped to the desolventizer 3 through a line 54.  The solvent vapor flows to the extractor through a line 66 and the extracted oil is collected at 68.  In a modification the condensate from the condenser may be divided into aqueous and non-aqueous portions, the aqueous portion being fed to the slurry in the screw feed 12. The condensate is collected in an annular basin at the base of the condenser 4 where it can stratify the solvent overflowing into the extractor.
Patent GB-658018-A (GB)
Title: Bed-settee
IPC: D06B5/00
Filed: 1949-07-19
Abstract: 658,018. Bed settees. DUCROT, A. July 19, 1949, No. 19008. Convention date, July 27, 1948. [Class 52 (ii)] A bed settee comprises two bed sections a, b, embodying spring mattresses, hinged together at 1, a back 11, 14 hinged to the bed section b at 15, a seat 18, 20 pivoted to the back at 21 and a stuff mattress c. As shown in Fig. 2 the folded stuff mattress c lies below and behind the seat and back respectively and to transform into bed position the seat 18, 20 is folded on to the back 11, 14 and the whole then folded down with the bed section b causing the legs 6 to be brought into position by levers and linkage 8, 10. Arm rests e if provided may serve in the bed position to support the side of the bed. In modifications the bed sections may be hinged together on two axes and also the seat may be pivoted to a bed section other than that to which the back is pivoted. Specification 489,527 is referred to.
Patent GB-1412916-A (GB)
Title: Coke ovens
IPC: C10B33/00
Filed: 1974-05-01
Abstract: 1412916 Confining and removing dust in industrial processes SIMON-CARVES Ltd 1 May 1974 [1 June 1973] 19022/74 Heading F4X A shed disposed on the coke discharge side of a coke oven 10 over the full length of the coke oven battery is equipped with means (e.g. a suction branch 17 leading to a suction main 16) for extraction of dust-laden air, and comprises a roof 15 which rises from the oven top to a longitudinal end wall 29 running alongside the quench car track. The roof may present to the interior of the shed a concave shape (as shown) or a convex shape (Fig. 2). In use, as coke is pushed from the oven 10 with the evolution of gases laden with coke particles, through the coke guide 12 into the quench car 13, the larger coke particles are deflected by the roof 15 into a trough running the full length of the battery and formed by a catchplate 19. The collected larger particles are moved by a conveyer 20 either to the end of the trough, or to shoots 21 from which they descend to the coke car 13. At the end of each shoot is a valve 22 which is opened to discharge the coke particles into the quench car as it passes the end of the shoot.
Patent GB-360814-A (GB)
Title: An improved process for the purification of hydrocarbon oils
IPC: C10G67/10
Filed: 1930-08-22
Abstract: Unrefined kerosene is purified by treating it with hydrogen at temperatures between 750-870 DEG  F. and under pressures above 20 atmospheres, the time of treatment being adjusted in relation to the temperature so that less than 5 per cent of the oil is converted into fixed gas and about 97 per cent of the feed oil is recovered as purified oil.  The oil is fed by a pump 1 through a pipe 2 and heat exchanger 3 to a heated coil 8 and retort tubes 5 packed with catalysts.  The tubes 5 are of greater diameter than the coil 8, the respective diameters being 8-12 in. and 2-4 in. for a throughput of 1000 barrels per day.  The products pass through the exchanger 3 to a cooler 13 and separator 14, from which conden <PICT:0360814/III/1> sate is led off through a line 15 while gases pass off through a line 16 to a purification system 17 from which they are recirculated by a pump 18, fresh hydrogen being added by a pump 19.  The temperature of the furnace is regulated by recirculating part of the flue gases through ducts 10 by a fan 11.  The furnace may alternatively be heated by lead or mercury vapour baths.  In starting up the process carbon dioxide may be introduced into the apparatus and reacts with the hydrogen to form steam and methane with evolution of heat.  The carbon dioxide may be added throughout the reaction.  From a kerosene cut of specific gravity 29,9 DEG  B<\>ae containing ,395 per cent sulphur after treatment under the conditions specified so that 1,7 per cent by weight is converted into fixed gas, a recovery of 97 per cent of oil is obtained containng ,006 per cent sulphur.
Patent GB-1398521-A (GB)
Title: Lighting fittings
IPC: F21V1/12
Filed: 1971-06-04
Abstract: 1398521 Lighting fittings MERCHANT ADVENTURERS Ltd 2 June 1972 [4 June 1971] 19082/71 Heading F4R A lighting fitting such as a lampshade comprises a plurality of identical elements 1 interconnected by snap-connector members 5 to form a stacked array, each element having a band-like part parallel to and spaced from the band-like parts of adjacent elements and being provided with at least two of the members 5 each of which has a socket 6 at one end and a spigot 8 at the other end for engagement with an interference fit in the socket of the corresponding member of an adjacent element. Each band-like part consists of a cylindrical sleeve 2 and an inwardly directed flange 3 joined together by an outwardly concave curved portion 4, the elements being made of any suitable transparent, translucent or opaque material and the array having the form of a right-circular cylinder, as shown, or a cylinder of triangular, square, rectangular or polygonal cross-section. A spider 11 is provided for securing the shade to a lampholder, the legs of the spider having apertures 12 adapted to fit over the members 5 of one of the elements. Adaptor rings (14) may be provided for insertion in the central aperture 13 of the spider to engage smaller lampholders, a lampholder cord-grip fitting or a suspension rod. In a modification the array, instead of being cylindrical, is of planar, faceted or trough-like shape and may span an alcove or corner of a room.
Patent GB-701155-A (GB)
Title: Improvements in furnaces
IPC: F23L1/02
Filed: 1950-08-01
Abstract: 701,155. Air supply to furnaces. THERMOFIRE ENGINEERING CO., Ltd., and TERRETT, J. F. July 27, 1951 [Aug. 1, 1950]. No. 19195/50. Class 51 (1) In a furnace having associated therewith a source of air under pressure, the air is introduced below the firebars by a perforated tubular member or members E provided with perforations which allow air to flow to the whole of the area of the grate and closed at both inner and outer ends, the air being admitted at a point D<SP>1</SP> intermediate said ends bv a conduit D which constitutes the only means of air entry to the furnace. Air is drawn through an adjustable damper M to a blower B driven by an electric motor C and is supplied under pressure to the conduit D. A thermostat (not shown) operates a switch H to stop or start the motor. The damper M closes the air inlet when the motor is switched off.
Patent GB-285313-A (GB)
Title: Process for the manufacture of stable dry substances from colloidal liquids especially liquids containing fat and albumen
IPC: A23C9/18
Filed: 1927-07-21
Abstract: 285,313. Knoch, C., and Gross, F. July 21, 1927. Preserving milk &c.-For making stable dry bodies from colloidal liquids, especially liquids, such as milk, containing fat and albumen, the liquid is concentrated, a part of the substances present in solution is extracted as by osmosis, the remaining concentrated liquid is dried to powder form, and the powder is compressed into solid bodies which are coated with a hard envelope consisting of the substances which have been previously extracted. As applied to milk, the liquid is evaporated in vacuo at a temperature below 60‹ C., milk sugar and salts are extracted by osmosis, the remaining concentrated liquid is transferred in the form of drops to steam-heated glass, china, or like drums, and after being momentarily heated the particles are brushed off by razor-sharp flexible scraping devices moving parallel to the axis along the drum surface. The brushed-off powder is freed from air by pressure with or without the application of vacuum, and it is then intermittently compressed into solid bodies which are coated by immersion in a highly concentrated solution of the milk sugar and salts or by being sprayed with the dry powder obtained by evaporation of the dialysed liquid.
Patent GB-508336-A (GB)
Title: Improvements relating to hub caps for the wheels of perambulators, baby carriages and wheeled toys
IPC: B60B19/00
Filed: 1938-07-05
Abstract: 508,336. Vehicle wheels. HUGHES, Ltd., G. H., and ROWE, A. July 5, 1938, No. 19835. [Class 144 (i)] A hub-cap for wheels of perambulators and toy vehicles comprises an inner pressing 3, of steel or other relatively cheap metal, and an outer pressing 4 formed of more weatherproof and ornamental nature such as electrolytic zinc, the parts being connected by flanging 3a, 4a, as shown.
Patent GB-1075235-A (GB)
Title: Improvements in or relating to the processing of natural rubber
Inventor: SEKHAR BALACHANDRA CHAKKINGAL
IPC: C08L7/00
Filed: 1964-05-13
Abstract: Wet natural rubber in the form of latex coagulum or a solid mass is mixed with an incompatible oil and milled at least until the mixture crumbles.  Suitable oils are castor oil and silicone grease.  The oil may be added to the rubber in the latex form.