baber/WOPTO huggingface dataset:
Patent GB-889514-A (GB)
Title: New quinone derivatives and process for their manufacture
IPC: C07D203/14
Filed: 1960-05-13
Abstract: The invention comprises compounds of the formula <FORM:0889514/IV (b)/1> (wherein R and R1 are each aliphatic hydrocarbon radicals of 6 to 17 carbon atoms and R2 and R3 are each hydrogen atoms or alkyl radicals of at most 6 carbon atoms) and their preparation by reacting corresponding 2,5-dihalogeno - 3, 6 - bis - acylamino - p - benzo - quinones with ethylene imine or a C-alkylated ethylene imine. Examples are given.  2, 5 - Dichloro - 3, 6 - bis - oenant hoylamino - p - benzoquinone is prepared from 2,5-dichloro-3,6-diamino-benzoquinone and oenanthic anhydride.  2, 5 - Dichloro - 3, 6 - bis - capramido - p - benzo - quinone is prepared similarly.ALSO:Pharmaceutical compositions comprise a compound of the formula <FORM:0889514/VI/1> (wherein R and R1 are each aliphatic hydrocarbon radicals of 6 to 17 carbon atoms and R2 and R3 are each hydrogen atoms or alkyl radicals of at most 6 carbon atoms) in admixture or conjunction with a pharmaceutical carrier.  They may take the form of tablets, dragees, powders, salves, creams, suppositories, solutions, suspensions or emulsions and they may also contain preserving, stabilizing, wetting or emulsifying agents, and other therapeutically valuable substances.
Patent GB-977705-A (GB)
Title: Process for the production of foamed polyester polyurethanes
IPC: C08G18/42
Filed: 1962-05-03
Abstract: A process for the production of foamed polyester polyurethanes comprises reacting polyisocyanates in the presence of a wetting agent, water, and a tertiary amine with polyesters derived from a glycol on the one hand and on the other a mixture of unsaturated fatty acids and their polymerization products which consists of above 10 and up to 50 parts by weight of monocarboxylic acids with 14 to 22 carbon atoms, 10 to 70 parts by weight of dicarboxylic acids with 36 to 44 carbon atoms, 10 to 70 parts by weight of tricarboxylic acids with 54 to 60 carbon atoms, and up to 30 parts by weight of tetracarboxylic acids and more highly polymerized carboxylic acids with more than 60 and up to 88 carbon atoms, in the molecule, which polyesters have a mean molecular weight of 750 to 6,000, a hydroxyl number of 25 to 150 and an acid number below 4.  The polyester may be mixed with polyalkylene glycols before reaction with the polyisocyanates. The polyester can be one obtained by alcoholysis with the glycol of a mixture of esters of the carboxylic acids with a more volatile monohydric alcohol proportion of the initial esterifying groups may remain and then the corresponding parts of the molecule act as internal plasticizers.  The carboxylic acid mixtures can be obtained by heating to 200 DEG C., especially in the presence of water and mineral clays, unsaturated acids such as linoleic, linolenic, eleaostearic litanic acids, unsaturated acids from marine oils, single unsaturated fatty acids such as oleic and palmitoleic acids, conjugated unsaturated fatty acids, castor oil fatty acids, Polyesters can be formed with ethylene, propylene, diethylene, tri-ethylene and higher polyethylene glycols, 1, 2-propylene glycol, poly-1, 2-propylene glycol, and trimethylene, butylene and neopentylene glycols.  In the preparation of the foamed polyurethanes low boiling liquids can be added as additional foaming agents. Various orders of mixing the reactants can be used.  Fillers such as chalk, heavy spar, kieselguhr, carbon black or coloured pigments can be added to the reaction mixture. In examples the polyesters are prepared from (A) ethylene glycol and polymerized fatty acids of linseed oil; (B) diethylene glycol and a polycondensation product of tung oil fatty acid methyl esters; (C) diethylene glycol and soya oil fatty acid methyl ester polymerization product; (D) ethylene glycol and a polymerization product of dehydrated castor oil fatty acid methyl ester. Foaming is effected by mixing the reactants at high shearing speeds or in a spray pistol and casting or spraying the mixture. Other specified components of the mixture are lecithin, alkyl phenol polyglycol ether, chalk, carbon black, 4, 41-diphenylmethane diisocyanate or 2, 4-toluylene diisocyanate.
Patent GB-313007-A (GB)
IPC: B44F9/04
Filed: 1929-06-04
Abstract: 313,007. Masa Ges. zur Herstellung K³nstlicher Oberflõchen, (Assignees of Allgemeine Elektricitõts-Ges.). June 4, 1928, [Convention date]. Printing processes.-In the imitation of marble or ceramic designs on wood, metal plates, &c., a photographic negative is obtained from the marble &c, to be imitated, and from it is prepared a diapositive, which may be of natural size, the diapositive serving for the production of an etched copper plate or a lithographic plate A screen is usually interposed, in order to obtain half tones. The printing-plate is inked and the pattern is taken off with a rubber or liko roller and transferred to a metal plate or board. In the case of weak contrasts in the grain of the marble, intensification may be employed, and any veiling may be removed by reduction, for example, by prussiate salts. A marble slab may be ground down until translucent, and then laid directly upon a light-sensitive, plate. The surface to receive the pattern may be first grounded in the ground colour of the marble, for example, in bluish, whitish-yellow, or bluish-white tones- In the case of marble having several colours. different exposures with colour-eliminating filters are made. and a number of printing-plates are prepared. As a source of light for twocolour marble, an arc light, quartz light, or R÷ntgen light are used, and for polychrome marble, sunlight, mercury-vapour light, or ultraviolet light.
Patent GB-1076184-A (GB)
Title: Fuel injectors for internal combustion engines
Inventor: BEDDOES GERALD NORMAN
IPC: F02M51/08
Filed: 1963-05-01
Abstract: 1,076,184. Fuel injectors. ASSOCIATED ENGINEERING Ltd. May 1, 1964 [May 1, 1963]. No. 17176/63. Heading FIB. In an electromagnetically operated fuel injection valve having a spring-loaded valve stem 10b within a valve body 1a engaging a valve seat 12b at one end and having an armature 10d at the other end, a swirl chamber 15. having a tangential fuel inlet port 16, surrounds the valve stem upstream of the valve seating. The solenoid coil and iron core assembly 3, 4 are encapsulated in synthetic resin material 6 in a housing 5 and electrical terminals 8 are insulated from the engine B. Valve body 1 consists of portion 1a, e.g. of bronze, and portions 1b, 1c, e.g. of brass, and contains a bronze guide sleeve Id. Valve stem 10 consists of a plastics portion 10a e. g. of Delrin (R. T. M. ) portion 10b e.g. of aluminium, and a Swedish iron armature portion 10c having an enlarged flat head 10d which is engaged by a non-magnetic annular spring 14 which also acts as a spacer between armature portion 10d and the solenoid assembly. Fuel from inlet 19 passes through chamber 20 and tangential passages 16 into swirl chamber 15 and, when the valve is closed, passes through port 17, passage 11 and ports 18, 21a, to the fuel return passage 22. When the valve is opened the swirl in chamber 15 causes the fuel to be passed through orifice 13 as a thin film, having a central air core, and emerges into the engine manifold as a conical sheet which is atomized by its passage through the air. The size of port restrictions 21a are determined by the desired rate of fuel flow and in a modification the ports 17, 21 are omitted. In further modifications a straight or curved extension of the valve stem extends into the outlet orifice 13.
Patent GB-706042-A (GB)
Title: Oxidation process
IPC: C07B35/04
Filed: 1951-07-19
Abstract: Organic compounds (e.g. hydrocarbons, amines, amides, aldehydes, ketones, esters, acids, heterocyclic compounds, sulphides, alcohols, and carbohydrates) are oxidized by heating with sulphuric acid or a water-soluble sulphate, a water-soluble sulphur compound containing sulphur of valency below 6, and water to a temperature between 200 DEG F. and the critical temperature for water, at a pressure sufficient to hold a substantial proportion of the water in liquid phase.  The process may be batchwise or continuous.  In examples, p-xylene, ammonium sulphate and ammonium or hydrogen sulphide are heated in a bomb, the products being phthalic, toluic, and benzoic acids, and in a similar continuous process referred to, the reaction product mixture is passed to a cooling and depressuring zone, a gaseous product consisting of p  ammonia and hydrogen sulphide is withdrawn therefrom, and scrubbed with sulphuric acid, ammonium sulphate so obtained being returned to the reaction zone.  Other oxidations specified are: toluene to benzoic acid, toluic acid to phthalic acid, caproic acid to carbon dioxide, tetrahydrofuran to carbon dioxide or to acetic, succinic and butyric acids, acetophenone to benzoic or phenylacetic acid, cyclohexanone to phenol and carbon dioxide a -methylnaphthalene to a -naphthoic acid, p-tert.-butyl toluene to p-tert.-butyl-benzoic acid, mesitylene to trimesic acid, pseudocumene to the phthalic acids, m-cymene to isophthalic acid, benzyl alcohol to benzoic acid, durene to iso- and tene-phthalic acids, 2.3-dimethylbutane to carbon dioxide and isobutyric acid, n-hexane and n-octane to carbon dioxide and lower aliphatic acids, 2.2.4-trimethyl pentane 2.2.5-trimethylhexane and diisobutylene, to trimethyl acetic and propionic acids, diamyl sulphide to valeric and other acids, hemimellitene to phthalic acids, methanol to carbon dioxide, trimethylamine to methyl mercaptan dodecene to aliphatic acids, sucrose and n-butane to acetic acid and carbon dioxide.
Patent GB-530576-A (GB)
Title: Improvements in receiving apparatus for alternating current telegraphy
IPC: H04L27/06
Filed: 1939-06-13
Abstract: 530,576. Valve relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 13, 1939, No. 17278. Convention date, June 14, 1938. [Class 40 (v)] The relay Re which responds to signals having varying amplitudes is connected in the output circuit of a pair of valves E1, E2 connected in push-pull, the input circuits of the valves containing oppositely connected rectifiers g<SP>1</SP>, g2, and the circuit of one valve including a condenser C shunted by resistance R which is arranged so that the bias of valve E1 varies with grid current. If an amplifying valve F is provided, Fig. 2, the circuit R.C. is connected in part of the circuit common to both valves F and E1 as described in Specification 530,575.
Patent GB-1418147-A (GB)
Title: Extensible scaffold
IPC: E04G1/22
Filed: 1973-04-11
Abstract: 1418147 Telescopic scaffold K RASMUSSEN 11 April 1973 17283/73 Heading E1S A vertically extensible scaffold comprises at least three scaffold sections 1, 2, 3, 4 each including upright corner tubes 15, the scaffold sections being loosely telescopically received within one another; pulleys 14 mounted at the ends of the tubes 15 of the base and intermediate sections 2, 3, 4; lifting cables or wires 13 passing through the upright tubes 15 of the sections 2, 3, 4 and guided round the pulleys 14 and connected to the lower end of the top section 1; winch means 8 mounted on the base section 4 and connected to the lower ends of the cables or wires 13 for raising and lowering the sections 1, 2, 3; and releasable locking means for securing adjacent sections together in adjusted positions. The winch means may comprise grooved pulleys 8, one for receiving each cable or wire 13, mounted on a common shaft 7, which as shown is rotatable manually by a handle 6. Adjacent scaffold sections may be fastened together in any relative position by clamps embracing the corner tubes 15, or in fully extended or retracted positions by co-operating apertured brackets and studs on respective sections and locking wedges. The scaffold may have wheels 20 and a top platform 16.
Patent GB-821745-A (GB)
Title: High temperature alloys and the manufacture thereof
IPC: C22C19/00
Filed: 1957-05-31
Abstract: A high temperature cobalt or nickel-base alloy suitable for use in the construction of gas turbines has the following composition in percentages by weight: Cr 4-30; C 0-05; Fe 0-30; Ti 0-8; Al 0-8; Mo 0-30; W 0-15; Nb and/or Ta 0-6; V 0-3; Mn below 3; Si below 3; B 0.0005-0.05; Zr 0.005-0.50; Ni or Co 35-90.  When the alloy is Ni-based, up to 30% of Co may be present and when the alloy is Co-based, up to 30% of Ni may be present.  The alloy is prepared by vacuum melting the Cr, Ni and/or Co and Fe, Mo, W, Nb and Ta (if any) in the presence of C, after deoxidation by the C adding at least one element selected from Si, V, Al or Ti and when the addition has melted adding B and/or Zr in such an amount as to complete deoxidation and to leave 0.005-0.5% of Zr and/or 0.0005-0.05% of B in the resultant alloy.  The alloys are subjected to a hardening heat treatment, an example quoted for a nickel-base alloy being to heat to 1950 DEG F. for 4 hours, air cool, age for 15 hours at 1400 DEG F. and air cool, whilst for a cobalt-base alloy a suitable heat treatment is to heat for 2 hours at 2150 DEG F., air cool, age for 24 hours at 1650 DEG F. and air cool.
Patent GB-657821-A (GB)
Title: Improvements in or relating to the production of resilient rubber rings and articles embodying same
IPC: B29C45/14
Filed: 1948-06-28
Abstract: A ring of rubber or like elastomer reinforced with an embedded annular spring is made by supporting the spring in an annular mould, injecting rubber or the like, at least partially vulcanizing the rubber, and subsequently inserting the coated spring in a mould of larger dimensions, injecting more rubber and finally vulcanizing the whole.  The ring may be supported centrally in the first mould on grooved projections, the second moulding operation covering inter alia those parts left uncovered in the first operation. Alternatively, the spring may be supported by rubber supports which are embedded in the covering by the moulding operations.  The spring may be of flat section coiled into an annulus or may be a helical spring bent into a circle and secured.  If of the latter form the spring may be supported on a spigot in the first mould and rubber injected into its interior, the rubber exuding through the turns to fill the mould.  Either type of spring may also be supported in the first mould by rubber tape would round it in an open helix, rubber being injected into the centre of the spring when this is of helical form.  Articles incorporating reinforced rubber rings are made by disposing the coated ring from the first operation in that part of a mould of the required shape corresponding to the part of the moulded article requiring reinforcement.  The rubber mix for the second operation may be faster curing than that for the first, so that in the second operation both may be fully cured in the same time.
Patent GB-129652-A (GB)
Title: Improvements in and relating to Rackets.
Inventor: FORESTIER MAURICE CLAUDE ALPHO
IPC: A63B51/12
Filed: 1919-07-11
Abstract: 129,652. Forestier, M. C. A. April 30, 1918, [Convention date]. Rackets.-The cross strings b of a racket pass round semicircular guides g and are tightened by means of tubular nutst t provided with slotted conical heads T countersunk in the frame. Instead of a tubular nut t, a screw may be used fitting into a tubular portion of the guide g.
Patent GB-1027632-A (GB)
Title: Improvements in and relating to processes for the separation of olefines
Inventor: WIENER HANS BERTHOLD
IPC: C07C7/152
Filed: 1962-05-07
Abstract: Olefins are separated from mixtures with paraffins and/or aromatics by extracting with an aqueous solution of a heavy metal, particularly silver, fluoborate or fluosilicate, purifying the solution obtained to remove non-olefinic compounds and recovering olefins by stripping. Purification and stripping may be effected by liquid-liquid extraction with an immiscible solvent, e.g. a paraffin or by stripping with steam.  In one embodiment the stripping is effected by liquid-liquid extraction using a volatile solvent which is then used in vapour form in the purification.  In another embodi ment both stages are effected by extraction, from part of the solvent from the stripping step olefins are recovered and the other part is used in the purification and olefin-lean material recovered from this part is recycled to the original extraction.  In an example styrene is separated from C8 aromatics.  Reference has been directed by the Comptroller to Specification 859,440.
Patent GB-243043-A (GB)
Title: Improvements in and relating to the supply of hot water for domestic and other purposes
IPC: F24H9/20
Filed: 1924-07-22
Abstract: 243,043. Lauth, C. H. July 22, 1924. Manually-actuated multiple-way valves. - The water-circulating pipe of apparatus for heating water for domestic purposes &c. is provided with a three-way valve f, Fig. 1, adapted, when in the position shown, to allow the water to circulate and when in one or the other of two alternative positions to be withdrawn through the parts a, e of the pipe from either the top or the bottom of the tank. In a modification, the valve is formed with passages k, m, n, Fig. 3, which communicate with the annularly-arranged parts a, e of the pipe.
Patent GB-440190-A (GB)
Title: Process of improving natural resins and gums by distillation
IPC: C09F1/00
Filed: 1934-06-13
Abstract: Natural resins and gums, which are molten at the distillation temperature employed, are purified by subjecting them to a short-path distillation in a very high vacuum of the order of 10<-3>--10<-5> mm. of mercury, as described in Specification 303,078, [Class 32].  The materials are preferably dissolved or dispersed in a non-distillable carrier liquid which is mobile at the distillation temperature, e.g. vegetable oils or high-boiling mineral oils from which the volatile constituents have been removed by distillation in a very high vacuum. Alternatively a volatile carrier liquid is used preferably a drying oil which serves as a vehicle in the manufacture of a varnish from the improved resin.  The products may be removed from the still by scraping as described in Specification 435,032 or by melting them and running off into a receptacle.  A low grade rosin is dissolved in linseed oil and the solution heated to 168 DEG  C., in a still maintained under a vacuum of 10<-3>-10<--5> mm. of mercury and provided with condensing and heating surfaces disposed 1--2 cms. apart.  A white powder is obtained which is removed by scraping. Specification 437,895 also is referred to.
Patent GB-416300-A (GB)
Title: Improvements in and relating to poppet valves for internal combustion engines
IPC: F01L3/18
Filed: 1934-06-14
Abstract: 416,300. Valves. CROSS, R. C., 33, Midford Road, Odd Down, Bath. June 14, 1934, No. 17661. [Class 7 (vi).] Oil or other cooling-medium is supplied to tubes 3 extending through the stems of several poppet valves into the valve heads, by means of a conduit 10 which is arranged transversely alongside the valve axes and has ports 12 which register with passages 6 leading through the tappet bearings of the various valves to the hollow tappets 4 which communicate with the tubes 3. The conduit 10 is carried by a series of blocks 13 secured to the tappet bearings or their supports. The cooling-medium passes down outside the tubes 3 and through escape holes 8 in the valve stem, whence it spurts on to the engine casing and becomes cooled.
Patent GB-515855-A (GB)
Title: Improvements in and relating to the etherification of cellulosic fibres
IPC: C08B11/00
Filed: 1938-06-14
Abstract: 515,855. Yarns and threads. REICHEL, F. H. June 14, 1938, No. 17684. [Class 120 (iii)] [Also in Group IV] Cellulosic fibres of textile making length are converted wholly or partially or superficially, into cellulose ethers in presence of alkali, and a water soluble salt which is added to prevent sticking. The fibres obtained can be readily separated by carding or like operations. They are spun into yarns either alone or with other fibres. Cotton, kapok, flax, hemp, jute, sisal, ramie, cocoanut, straw, or like fibres may be subjected to the etherification treatment. Yarns containing the cellulose ether fibres may be treated with caustic alkali solution or other solvent and subjected to pressure so as to cause the fibres to coalesce. Yarns containing the cellulose ether fibres and other fibres may be treated with a solvent for the cellulose ether so as to obtain stiffened yarns. The etherifying agent used may be an alkyl halide or sulphate, an alkylene oxide, a chlorohydrin, or a halogen fatty acid. Specifications 501,436 and 510,511, [both in Group IV], are referred to.
Patent GB-1224441-A (GB)
Title: Improvements in photographic cameras
IPC: G03B7/16
Filed: 1969-04-03
Abstract: 1,224,441. Focusing for flash photography. FERRANIA S.p.A. April 3, 1969 [April 4, 1968], No. 17684/69. Heading G2A A camera lens is displaced axially from a "distant" focusing position to a "near" focusing position when an illuminating device is attached. As shown, the housing 28 of the lens 34 is mounted in a screw-threaded support so that rotation of the housing causes the lens to be moved along the optical axis. Spokes 30, 32 project radially from the housing 28, and spoke 30 is normally drawn downwards by a spring 60 so that it rests against a ledge 38 of the camera casing. Against the other spoke 32 rests the free end of a spring 52 attached to a rod 48. The other end of rod 48 is pivoted to one end of a lever 39, whose other end 40 is pivoted to the camera casing. Pivoted to lever 39, part way along its length, is a plunger 18 forming part of a flash bulb socket 16, and normally the parts occupy the positions shown in full lines. The arrangement is regarded as being particularly applicable to fixed focus cameras, and normally the lens 34 is in a "distant" focusing position, i. e. suitable for outdoor photography. When flash illumination is used, however, the subjects are usually indoors, and a shorter focus is desirable. Thus when a flash bulb 26 is inserted into the socket 16, the plunger 18 is depressed, causing lever 39, and hence rod 48, to move downwards, so engaging spoke 32 and rotating the lens housing in the direction of the arrow (broken line position). This causes the lens to move axially into its "near" focusing position.