baber/WOPTO huggingface dataset:
Patent GB-467543-A (GB)
Title: Improvements in or relating to the manufacture of magnesium hydroxide
IPC: C01F5/22
Filed: 1936-10-21
Abstract: <PICT:0467543/III/1> <PICT:0467543/III/2> In the manufacture of magnesium hydroxide from dilute brines such as ocean water, a stream of unclarified milk of lime is delivered into a stream of the brine with gentle agitation and under controlled conditions with respect to rate of flow whereby agglomerated flocks of highly hydrated magnesium hydroxide are formed and maintained, the combined stream carrying the flocks passing into a quiescent body of mother liquor to effect settling of the flocks.  As shown in Fig. 1, lime to be used in the process is slaked with water in apparatus comprising a mixing vessel 6, retention vessel 8, and final mixing-tank 13.  This arrangement prevents the growth of large crystals of calcium hydroxide.  The slurry is diluted in a tank 19 with water or treated brine until it contains 0,3 to 0,5 lb. CaO per gallon, is subjected to hydraulic classification in tower 23 and further purified by screening in device 27.  The purified slurry is then delivered to the mixing chamber 31 disposed in the settling chamber 32.  Raw brine may be treated in tank 36 with the matter rejected from tower 23 and screening device 27 and with alum in tank 42, before being filtered in filter 44 and passed to the mixing chamber 31. As shown in Fig. 2, the mixing chamber is located below the level 45 of liquid in the tank 32.  Milk of lime is supplied through a pipe 47, and brine through a pipe 48 to a pipe 46 surrounding the pipe 47, a baffle 49 being provided to ensure an even downward flow from the lower end of pipe 46.  The distance between the lower end of pipe 47 and that of pipe 46 may be varied to ensure proper mixing of the reactants.
Patent GB-418256-A (GB)
Title: Improvements in and relating to frame structures for vehicles, marine vessels and aircraft
IPC: B62D25/08
Filed: 1933-10-17
Abstract: 418,256. Motor vehicle frames. BECKER, W. A., 49A, Cicerostrasse, Halensee, Berlin, and SCHLESINGER, H., 7, Rue Saulnier, Paris. Oct. 17, 1933, No. 28722. Convention date, Oct. 20, 1932. [Class 79 (iv).] To avoid permanent deformation under stress, a degree of flexibility is introduced into frame structures of motor and other vehicles, marine vessels and aircraft by the use of one or more frame members constituted of corrugated tubing, the corrugations encircling the tubing at right angles to the axis. Preferably one complete corrugation extends over a length of the tubing equal to the diameter thereof. The application to a motor vehicle is shown in the Figure wherein corrugated tubing is used for the longitudinal frame members 1, 2. The application to a central longitudinal tubular chassis frame is also shown, the corrugated tubing extending from the engine and gear box unit to the rear axle assembly.
Patent GB-161147-A (GB)
Title: Improvements in or relating to safety valves
IPC: F16K17/08
Filed: 1920-10-11
Abstract: 161,147. Crosby Steam Gage & Valve Co., (Assignees of Clark, G. H.). March 30, 1920, [Convention date]. Safety-valves.-A safety-valve of the kind provided with concentric seats has the outlet from the inner seat progressively constricted as the valve opens, by an adjustable sleeve surrounding the valve member. The valve member D, which is adjustably loaded by a spring G, has valve faces S, S<1> and is fitted with a tubular extension T adapted to work in a well in the seat B. The extension T has a series of inlet ports A close to the inner seat S<1> and has outlet passages E extending to the periphery of the valve member. The valve member slides in a sleeve R adjustably secured to the hood M so that as the valve lifts the passages E are progressively constricted. The sleeve R has lugs R<1> whereby it may be adjusted and secured in position by a pin P on a removable stud P<1>.
Patent GB-601094-A (GB)
Title: Improvements in or relating to the catalytic purification of coal gas or other combustible gases
IPC: C10K1/34
Filed: 1945-10-30
Abstract: A catalyst for converting organic sulphur compounds in fuel gases to hydrogen sulphide and sulphur dioxide is prepared from copperised steel wool obtained by immersing steel wool in copper sulphate soln. until the proportion of Fe : Cu are within the limits of 5.5 and 7 : 1 (a) as a sulphide or sub-sulphide by sulphiding at an elevated temperature and (b) as an oxide by oxidation.  The fuel gases are passed with or without the addition of steam over the catalyst (see also Group XII) at a temperature in the neighbourhood of 340 DEG  C.
Patent GB-1354857-A (GB)
Title: Luggage
IPC: A45C3/00
Filed: 1972-06-20
Abstract: 1354857 Bags J R ROSENBLUM 20 June 1972 [12 July 1971] 28861/72 Heading A4G [Also in Division B8] A bag assembly comprises a larger bag; a smaller bag; means to detachably connect the two so that the smaller bag is alongside and totally outside the larger bag; carrying means, e.g. handle or shoulder strap 36, which can either be connected to the larger bag or to the smaller bag as desired. When the bags are connected together the handle or strap 36 is attached to the larger bag and the assembly is carried as a unit. The smaller bag can be detached and used alone, either with or without the carrying means. The connection is preferably by snap fasteners  arranged on a flap 84 of the smaller bag cooperating with mating fasteners on the interior of an exterior pocket 50 of the larger bag. This exterior pocket may be closed by further snap fasteners. Both bags are preferably closed by slide fasteners and are both lined, at 40 and 76, and preferably both have interior pockets 44, 80 closable by slide fasteners. The larger bag may fit over, and be detachably connected, as by snap fasteners, to an open-topped box 90 having a resilient strap 104 therein to retain bottles.
Patent GB-722578-A (GB)
Title: Improvements relating to projection screens
IPC: G03B21/13
Filed: 1953-11-13
Abstract: 722,578. Projection screens. STABLEFORD, 3. L. Nov. 13, 1953 [Nov.15, 1952], No. 28876/52. Class 97 (1). A transmitting or partially specularly reflecting screen is provided at sides, top and bottom with convexly-ourved partially specular wings I1, 9<SP>1</SP>, 10<SP>1</SP>, the tangential planes to which, at the inner edges thereof are substantially normal to the screen, e.g. parallel to the marginal rays of the projection beam. Each wing 1 may be formed of two portions of cylindrical curvature, the inner one having the smaller radius, with or without an intermediate plane portion, The wings 9<SP>1</SP>, 10<SP>1</SP> may have a cylindrical curvature at their inner edges merging into a plane or may have parabolic or catenary curvature. The inner edges 18, 19 may be curved to conform to any curvature of the screen. Preferably the outer edge of each wing should be tangential to the plane through the inner edge of the opposite wing. The wings may be rigid, or formed of flexible sheeting on a rigid frame and may be integral with or separate from the screen. Specifications 534,483 and 702,756 are referred to.
Patent GB-1081433-A (GB)
Title: Carbon dioxide storage on board ship
IPC: B63J2/00
Filed: 1964-07-14
Abstract: In a ship provided with storage means for liquid carbon dioxide, the storage means is connected to a plurality of outlets for distribution of carbon dioxide throughout the ship.  The carbon dioxide may be used for fire extinguishing, fumigation, inerting of perishable foodstuffs or inflammable cargo, for providing an emergency means of maintaining refrigeration or for pumping fluids within the ship.
Patent GB-1470359-A (GB)
Title: Method of and apparatus for use in manufacturing testing trans porting and laying phase cores for oil-filled cables
IPC: H01B13/00
Filed: 1975-07-09
Abstract: 1470359 Oil filled cables VSES PROEKTNO IZYSKATEL I NI INST GIDROPROEKT IMENI S YA ZHUKA 9 July 1975 28936/75 Heading H1A [Also in Division H2] A method of manufacturing, testing, transporting and laying phase cores for an oil filled cable includes making a paper insulated stranded conductor core 8, winding it on a drum 7, drying and impregnating the core with insulating compound whilst in a housing 5, electrically testing the core, sealing the housing for transportation to the cable laying site and laying the core as it is unwound from the drum in the housing. Sealed chamber 18 containing the drum and insulating compound is kept under constant pressure by the elastic partition 10 which connects with a gas filled compensating chamber 19, which is in turn connected with internal chamber 11. The phase core can be led out of the housing, through hatch 20, directly into the pipe-line on site without the intermediate stage of lead sheathing. Before use the core is electrically tested by reducing lid 9 with one through which the core can be led and connected with testing devices. In other embodiments the compensating chamber is located either wholly within the drum (Fig. 6) or is mounted on the side of the housing (Fig. 7).
Patent GB-975010-A (GB)
Title: Improvements in portable powder-type fire extinguishers
IPC: A62C13/00
Filed: 1962-07-27
Abstract: 975,010. Fire-extinguishers. SAMUEL JONES & CO. (ENGINEERING) Ltd., and C. H. PHILLIPS. July 24, 1963 [July 27, 1962], No. 28958/62. Heading A5A. A portable, powder-type fire-extinguisher comprises a cylindrical container 1 fitted with a powder outlet tube 3 and a neck ring 2 threaded to receive a closure cap 5 which incorporates all the operative parts of the extinguisher. A central boss 6 on the cap carries a guide 7 for an operating plunger 8 and piercer 10, and extends inwardly with a threaded portion to receive the threaded neck of a gas cartridge 9. The external face of the inwardly extending portion of the boss is machined to a smooth finish and an annular fitting 13 is fixed thereover in good sliding contact and returned in place by a keeper ring 14. The annular fitting is grooved to provide a gas passage encircling the boss and at least one gas port 15 whereby communication is made between the interior of the boss and a downwardly directed gas tube 19 fitted to an outward protuberance 18 on the annular fitting.
Patent GB-289601-A (GB)
Abstract: 289,601. Mackeson, H. March 9, 1927. Addition to 267,236. Materials for making beverages.-A beverage made from apple juice according to the parent Specification is modified by the omission of malt extract either before or after fermentation.
Patent GB-319510-A (GB)
Title: Improvements in or relating to fastening devices for stair carpets
IPC: A47G27/06
Filed: 1928-10-10
Abstract: 319,510. Wicker, J. C. Oct. 10, 1928. Stair-carpet fasteners.-A fastener for the edge of a stair-carpet consists of an arm pivoted to a fixed bracket member and provided with a slot which co-operates with a turnbutton carried by the bracket to hold the arm pressed upon the carpet. In the construction shown, the arm 5 has trunnions 5<a> rotatably mounted in holes in an angle bracket 6, the arm being locked by a turnbutton 7 carried by the bracket and passing through a slot 5b in the arm. According to the Provisional Specification, the turnbutton may be replaced by a cam lever or similar fastening means.
Patent GB-998736-A (GB)
Title: Machines for assembling carriers with cans or other containers
IPC: B65B17/02
Filed: 1961-08-11
Abstract: 998,736. Feeding webs. ILLINOIS TOOL WORKS Inc. Aug. 11, 1961 [Aug. 12, 1960], No. 29096/61. Addition to 974,619. Heading B6B. [Also in Division B8] In a machine of the type described in the parent Specification, the perforated web, designed to fit over groups of cans, is drawn from a reel by means of the power-driven drum of an assembly 180 and led in tension-free condition through a trough 204 past a driven roller 206 to a station 214 where the web is applied to the cans. The web is pulled round the assembly 180 by means of pairs of pins 190 inserted through the holes in the web. The pins are movable in slots in the drum, being mounted on shafts, Fig. 2A (not shown), turned by bell-cranks operated by a fixed cam 200. A roller 162 pivoted on a counter-weighted bell-crank lever 164 causes a switch 172 to stop the machine if the supply of web from the reel fails. Switches are also provided to stop the machine if the supply of cans fails or if a can overturns before packaging. Specifications 914,202 and 976,398 also are referred to. Reference has been directed by the Comptroller to Specification 922,591.
Patent GB-1106046-A (GB)
Title: Preparation of peptides
IPC: C07K5/103
Filed: 1965-07-08
Abstract: In processes for the manufacture of peptides in which one or more free amino groups are protected by conversion into N-(cycloalk-2-en-1-one-3-yl) groups (cf. Specification 1,082,524), the protecting groups are later hydrolysed by treating the peptide derivative with nitrous acid and treating the resulting N-(2-isonitrosocycloalkan - 1 - one - 3 - ylidene) in an aqueous medium of pH less than 6.  Peptides containing amino and azido groups may be obtained by applying the nitrous acid treatment to peptides containing amino and hydrazino groups.  The nitrous acid may be taken as such or formed in the reaction mixture from an alkali-metal nitrite and an acid.  The protecting N-(cycloalk-2-en-1-one-3-yl) group may be introduced by treating the peptide with a 1,3-cycloalkanedione, particularly a 1,3-cyclohexanedione or a 1,3-cyclopentanedione, a number of both of which are specified.  The process is applicable to peptides containing carboxylic acid groups, which may be esterified, and when the carboxylic groups are present as benzyl esters they may be converted into the free acids by hydrogenation, as described in Specification 1,082,524.  In one example, N - (5,5 - dimethylcyclohex - 2 - en-1- one - 3 - yl) - glycyl - DL - alanine benzyl ester is treated with sodium nitrite and hydrochloric acid to yield glycyl-DL-alanine benzyl ester, which may be hydrogenated to yield glycyl-DL-alanine. In another example, the hydrazide of N - (5,5 - dimethylcyclohex - 2 - en - 1 - one-3-yl) glycyl-glycyl-glycine is treated similarly to yield the hydrochloride of glycyl-glycyl-glycine azide. Other examples are given also.
Patent GB-854427-A (GB)
Title: Improvements in and relating to a device for forming a screen against the inner faceof the upper part of an ingot mould
IPC: B22D7/10
Filed: 1959-08-26
Abstract: 854,427. Ingot moulds. DAUSSAN, H. J. Aug. 26, 1959 [Aug. 28, 1958; Dec. 23, 1958; April 10, 1959], No. 29161/59. Class 83 (1). The inner face of the upper part of an ingot mould is screened by a sleeve composed of at least two parts, which are longitudinally movable relative to one another and are in contact by lateral oblique faces, so that one of said parts constitutes a wedge and creates, by its longitudinal displacement, an expansion of the screen in a direction corresponding to an increase in the cross-sectional size. The sleeve, Figs. 1 and 2, may be composed of four elements 1 with interposed wedges 2, the parts being held in their assembled position by a binding 7 which allows a limited vertical displacement of the wedges 2. The parts may be made of, e.g. silico-aluminuous refractories, compressed fibres, cardboard or paper. In a modification, the sleeve comprises a single flexible element with a wedge between its adjacent ends. In another modification, Figs. 9 and 10, the sleeve comprises elements 1d and wedges 2d, held in place by clips 25 and carrying bags 19 containing materials for exothermic, oxidizing or purifying action &c. The elements may be made from corrugated cardboard, rendered incombustible by dipping or painting with sodium-silicate &c. In a further modification, Figs. 15 and 16, the sleeve extends above the top of the mould, and comprises two elements 1e, 1f in contact through lateral edges 3e, 4f, and surrounded by binding-means C, mounted on top of the mould and comprising two relatively-displaceable members 44 of iron or steel &c. Exothermic or other material may be accommodated in a recess 43 (not shown) on the inner face of the sleeve.
Patent GB-1385430-A (GB)
Title: Process for the production of homopolymers or copolymers of trioxane
IPC: C08G2/04
Filed: 1972-06-22
Abstract: 1385430 Chain-transfer agents in trioxan polymerization DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 22 June 1972 [22 June 1971] 29329/72 Heading C3P Trioxan is polymerized in the presence of (a) a cationic catalyst, (b) a chain transfer agent of the formula R n Si(OR<SP>1</SP>) 4-n  where R is a hydrogen or hydrocarbyl group, R<SP>1</SP> is a hydrocarbyl group and n is 0, 1 or 2, and, optionally (c) a comonomer. Bulk polymerization conditions at temperatures above the melting-point of trioxan are exemplified. Reaction components employed in the examples are:-(a) tertiary butyl perchlorate or nitrosyl hexafluoroantimonate in an ethylene chloride/dimethylglycol catalyst solvent or boron trifluoride dibutyl etherate in pure ethylene chloride, (b) tetramethoxy-, tetraethoxy-, tetrabutoxy-silanes, triethoxysilane, propyl-tri-n-butoxysilane, diphenyl diethoxysilane, and tetrapropoxy- and tetrahexoxy silanes, and (c) 1,3-dioxepan. Comparative examples utilize trimethyl borate and tributyl borate as (b) components.
Patent GB-1478844-A (GB)
Title: Spraying apparatus
IPC: B05B14/00
Filed: 1974-09-04
Abstract: 1478844 Rotating sprayers STAFFORDSHIRE CERAMIC SYSTEMS Ltd 4 Sept 1974 [20 June 1973] 29382/73 Heading B2F A spraying apparatus particularly for glazing ceramic ware, comprises a pair of parallel and oppositely rotatable hollow shafts 10, 11 each provided with a plurality of disclike members 15, with clearances between them, along its length and perforations between the disc-like members so that in use, the liquids fed through a pair of fixed pipes 13 to the rotating shafts 10, 11 issue through the perforations in the form of sprays impinging on articles 16 on a moving, endless conveyor 17. The two sets of disc-like members 15 are staggered and the liquid impinging on sloping baffles 18 lining a housing 12 runs into a vessel 20 to be pumped back into a header tank 14 for recirculation. The perforated parts of the shafts are changeable so that the number and/ or size of the perforations can be varied. The two shafts may be separated by a partition in the housing 12 or may be in two separate housings so that the articles on the conveyor are subjected to the two sprays separately.
Patent GB-720244-A (GB)
Title: Extrusion apparatus
IPC: B21C23/30
Filed: 1952-11-21
Abstract: 720,244. Extruding. WESTERN ELECTRIC CO., Inc. Nov. 21, 1952 [Nov. 21, 1951], No. 29475/52. Class 83 (4). Extrusion apparatus, particularly for sheathing electric cables with lead or lead alloy, has its extrusion metal fed to a die by a screw impeller 10 which at or near its rear end has toothed means for masticating for removal any solidified extrusion material which may have worked backwards between the impeller and its surrounding barrel 15. Molten lead supplied through an inlet 31 is fed forwards by screw threads 12 formed in the impeller. Any lead leaking backwards tends to solidify and form a "lead seal" of cylindrical form around the impeller, which seal is pressed rearwardly by the incoming lead. A masticating ring 38 secured to the impeller has peripheral teeth 49 which co-operate with adjacent teeth 42 on a fixed masticating ring 37 to cut the solidified lead into small chips which are flushed through a drain 52 by oil supplied through a conduit 50. This oil also lubricates the impeller bearing 26 and cools the rear portion of the impeller so as to chill the leaking lead. Annular grooves 36 assist in the formation of the " lead seals" and similar grooves 35 are provided on the inner surface of the impeller. Specification 430,006 is referred to.
Patent GB-244736-A (GB)
Title: Improvements in the separation of the lowest boiling constituents of a mixture of liquids by vacuum distillation
IPC: B01D3/10
Filed: 1925-11-23
Abstract: 244,736. Schmalenbach, A. Dec. 22, 1924, [Convention date]. Hydrocarbons, distilling.-In a continuous process for distilling in vaeuo to separate low-boiling constituents of a mixture of liquids, for example, to separate benzol from washing oils, the efficiency of t h e vacuum pump is increased by interposing between the end condenser and the pump a device for washing the vapours with an absorbing agent such as heavy oil, or for passing them through a final condenser cooled by a. freezing mixture. The whole of the vapours distilled under a high vacuum may be condensed together and subsequently fractionated under a lower degree of vacuum. The liquid to be treated flows through a pipe 12 into a still 11 from which the residual liquid flows through a pipe 14 to a heatexchanger. The vapours pass by a pipe 15 to a condenser 16 connected by a pipe 17 with the vacuum pump. Condensate flows through a tube 18 into the heated base of a rectifying column 19 surmounted by a dephlegmator 21. Vapours from the column pass to a condenser 22 con. nected to the vacuum pump through a reducing valve or a device 25 in which a column of liquid x, Fig. 1<a>, is interposed between the connection 26 to the vacuum pump and the connection 27 to the condenser in order that the vacuum in the condenser may not be so low as that produced by the pump. In a modification the preheated liquid before entry into the still 11 passes through a vessel connected to the rectifying column 19 to obtain a preliminary separation of vapours which are drawn into the column.
Patent GB-786731-A (GB)
Title: Process for the production of styrene oxide
Filed: 1955-10-17
Abstract: Styrene oxide is produced from styrene chlorohydrin by saponification with alkali metal hydroxide, the saponification being carried out, in the absence of organic solvents, with aqueous alkali metal hydroxide of more than 10 per cent by weight concentration at a temperature of from 50 DEG  to 100 DEG  C. for a reaction time of 3 to 100 minutes. Instead of using styrene chlorhydrin as starting material it is possible to use styrene chlorhydrin which contains a halogen atom in the nucleus or a styrene chlorhydrin which is substituted in the nucleus or in the chain or in both by an alkyl radical, preferably containing not more than 3 carbon atoms.  In the examples a mixture of styrene chlorhydrin and styrene dichloride is treated with 25 per cent caustic soda solution and the resulting mixture is cooled and separated into two layers, the upper layer is washed and distilled; styrene oxide is obtained in the first fraction and styrene dichloride is obtained in the second fraction.  The dichloride may be partially saponified to chlorhydrin which can then be converted to styrene oxide.  Specification 786,732 is referred to.