baber/WOPTO huggingface dataset:
Patent GB-1214827-A (GB)
Title: A process for the purification of naphthalene
Inventor: VOROZHTSOV NIKOLAI NIKOLAEVICH
IPC: C07C7/148
Filed: 1967-12-08
Abstract: 1,214,827. Purifying naphthalene. NOVOSIBIRSKY INSTITUT ORGANICHESKOI KHIMII. 8 Dec., 1967, No. 55877/67. Heading C5E. Naphthalene is purified by passing its vapour in a stream of gas over a silica-alumina catalyst at 300-450 C. and at a gas: molten naphthalene volume ratio of 40: 1 to 250: 1. The gas stream may be air or nitrogen. In a preferred process air and nitrogen are used alternately. The naphthalene may be fed at a rate of 0.2 to 2.1 volumes of molten naphthalene per volume of catalyst per hour.
Patent GB-1450715-A (GB)
Title: Multi-bed reactors
IPC: B01J8/04
Filed: 1973-12-07
Abstract: 1450715 Mixing and redistributing device for multi-bed reactors BRITISH PETROLEUM CO Ltd 20 Nov 1974 [7 Dec 1973] 56743/73 Heading B1F A device for mixing and redistributing reactants between the beds of a multi-bed, mixed, phase, down-flow reactor comprises means (9 and 10) for injecting gas into the reactor having a number of parallel perforated pipes (11) extending across the width of the reactor, and beneath the gas injection means a number of quench boxes (13) each extending across the width of the reactor and each having an inner and two outer compartments (18 and 20 respectively in Fig. 3), passages (19 in Fig. 3) in the roof of either the inner or outer compartments, passages through the walls between the inner and outer compartments and passages in the floor of whichever compartment has no passage in its roof.
Patent GB-1357347-A (GB)
Title: Permeable membranes
IPC: C22C1/08
Filed: 1970-11-30
Abstract: 1357347 Coated thin membranes TRADE & INDUSTRY SECRETARY OF STATE FOR 19 Nov 1971 [30 Nov 1970] 56772/70 Heading C7F [Also in Divisions B2 and H1] A thin permeable, but non-porous, membrane is made by blocking the pores of a porous substrate with a preferentially removable poreblocking material to give a smooth surface comprising both substrate and pore-blocking material, depositing on the smooth surface a permeable non-porous film, and removing the pore-blocking material. The porous substrate may be PTFE or polyethylene, and the poreblocking material may be ice, deposited by exposing the cooled substrate to water vapour, or a gum, a gel, or an inorganic salt, deposited from solution. The permeable film may be a sputtered PTFE film, and this may be subsequently metallised, e.g. with Pt by sputtering. A poreblocker such as ice is removed by heating; the others are removed using a solvent. The body so formed may be used as a fuel cell electrode.
Patent GB-1190159-A (GB)
Title: Shock Absorber and Air Spring Assembly
IPC: F16F9/084
Filed: 1968-12-02
Abstract: 1,190,159. Hydropneumatic shock absorbers. FORD MOTOR CO. Ltd. 2 Dec., 1968 [15 Dec., 1967], No. 57012/68. Heading F2S. In a shock absorber consisting of a telescopic hydraulic damper combined with a gas spring of the rolling diaphragm type, the spring diaphragm 50 is formed from a tubular sleeve which in its uninstalled state (Fig. 2, not shown) has end portions of different diameter and an intermediate tapered portion. The smaller diameter end of the sleeve is secured at 52 to the casing of the hydraulic damper, the sleeve is folded back upon itself at 62 and its larger diameter end is secured at 53 to a rigid tubular element 48 which in turn is secured to the pistonrod 40 of the damper. The latter is of the kind in which a valved piston 42 acts in a cylinder 16 which communicates by way of a valve 26 with an annular reservoir 30 surrounding the cylinder. The rate of the gas spring can be adjusted by varying the gas quantity by means of a valve 63.
Patent GB-1112730-A (GB)
Title: Wet bruising mill
IPC: B02C4/06
Filed: 1966-12-23
Abstract: Malt soaked in a container 2, Fig. 1, by water issuing from nozzles 3 and stirred by a stirrer 5, is delivered by a feed roller 7 to bruising rollers 8, 9.  The bruised malt is then mixed into sprays 25, 26 of mash liquor by at least one pair of vanewheel sets 16, 17, refer to Fig.3, and the resulting <FORM:1112730/C6-C7/1> mash is taken off by a pump 31.  The vane-wheels, which are provided along the entire length of the gap between the squeezing rollers, are driven in opposite directions such that the parts of the vane-wheels are moving upwardly where they inter-engage.  A variable drive may be provided for the vane-wheels.  The vane-wheels may be rimless spoked wheels with the individual spokes forming the vanes, 20, or sheet metal discs from which the vanes have been formed by punching out.
Patent GB-1338389-A (GB)
Title: Feed device for continuous casting machines for the production  of a continuous metallic rod
IPC: B22D11/06
Filed: 1970-12-04
Abstract: 1338389 Continuous casting I PROPERZI 4 Dec 1970 [19 Dec 1969 20 Jan 1970 22 April 1970] 57797/70 Heading B3F [Also in Division F4] A tundish 1, having a lateral nozzle 18 through which molten metal, e.g. copper, is fed to a grooved casting wheel 2 which co-operates with a metal belt 3, has an internal metal-holding cavity eccentric to the longitudinal axis of the nozzle, so that the tundish 1, and its mounting ribs 17 may be tilted by motor-driven means (not shown) about the axis of nozzle 18, to vary the head of molten metal, and thus its flow velocity through nozzle 18. The nozzle 18 may be shaped to fit into the groove of the casting wheel.  In a modification, Fig. 15, one or more adjustable oxy-acetylene or oxy-methane burners 51 and/or 49 may, by reduction of oxygen feed to the flame, provide a protective reducing gas atmosphere both within the tundish 42 and in the space between the nozzle 41 and a surrounding refractory-lined protective sheath 45 which space communicates with the interior of the tundish via passage 50. The heated nozzle 41 is thus kept free from solid metal obstructions, and thermal stresses and corrosive oxidation are reduced. Moreover the protective gases form a jacket around the molten metal jet leaving the outlet bush 44 of the nozzle. The bush 44 may be replaced by another bush of the same or a different outlet cross-section and/or length. Motorized slide means are provided to adjust the position of the tundish and its casting nozzle relative to the groove of the casting wheel 2. In a variation (Fig. 10, not shown) the cooling position may be at the summit of the casting wheel.
Patent GB-1481695-A (GB)
Title: Gas extraction of coal
IPC: B01D11/02
Filed: 1973-12-17
Abstract: 1481695 Extraction of soluble components from coal COAL INDUSTRY (PATENTS) Ltd 13 Nov 1974 [17 Dec 1973 9 Aug 1974] 58350/73 and 35243/74 Heading C5E In a process for the gas extraction of soluble constituents of coal which comprises heating the coal in the presence of an extractant to a terminal temperature of 400-550‹ C. at which the extractant is in the gas phase, separating the extractant and extract from the residue and thereafter recovering the extract from the extractant, the heating of the coal in the presence of the extractant is carried out at an initial rate of at least 20‹ C. per minute up to an intermediate temperature of 370-390‹ C. and thereafter heating to the terminal temperature is carried out at less than 20‹ C. per minute. The extractant used can comprise components having critical temperatures of 150-550‹ C.; the solvent components listed are water, aromatic, alicyclic and acyclic hydrocarbons, oxygencontaining compounds such as phenols, nitrogen-containing compounds, chlorobenzene and alkylthiophenes. In examples, the solvents used are toluene, o-xylene, pyridine, n-dodecane, methyl ethyl ketone, and an alkyl aromatic mixture having 95% boiling between 165‹ and 167‹ C. Fig. 1 (not shown) illustrates a process in which a mixture of coal and extractant is heated to the intermediate temperature and then passed downwardly through a shaft extractor in countercurrent to an upwardly moving stream of extractant which has been heated to the terminal temperature. Fig. 2 illustrates a process in which a mixture 33 of coal and extractant is heated to the intermediate temperature in a fluidized bed 35 and then further heated and extracted in a series of fluidized beds 40 and 48 in which heat is supplied by the hot extractant from the heaters 43 and 47 which fluidizes the beds.
Patent GB-1198433-A (GB)
Title: Process for Producing a Peroxy Compound
Inventor: DURSTON PETER JOHN
IPC: C07D273/00
Filed: 1967-12-22
Abstract: 1,198,433. 1,1<SP>1</SP> - Peroxydicyclohexylamine and 1,1<SP>1</SP>-dihydroxydicyclohexyl peroxide. BP CHEMICALS (U.K.) Ltd. 31 Dec., 1968 [22 Dec., 1967], No. 58378/67. Heading C2C. 1,1<SP>1</SP>-Peroxydicyclohexylamine is obtained by reacting cyclohexanone and hydrogen peroxide together at below 25‹ C. to give 1,1<SP>1</SP>-dihydroxydicyclohexyl peroxide and reacting this with ammonia at 25‹ to 50‹ C. The first stage may be conducted in the presence of an alkali, e.g. ammonia.
Patent GB-1179200-A (GB)
Title: Process for Preparation of Ethylene-Carboxylic Acid Copolymers.
IPC: C08F8/00
Filed: 1968-12-11
Abstract: 1,179,200. Ethylene-carboxylic acid copolymers. GULF RESEARCH & DEVELOPMENT CO. 11 Dec., 1968 [28 Dec., 1967], No. 59001/68. Heading C3P. Ethylene-carboxylic acid copolymers are prepared by heating a copolymer of ethylene with an isopropyl ester of acrylic or methacrylic acid to the ester decomposition temperature in the presence of water vapour or ammonia. The decomposition may be effected in a melt extruder, and the products used in coating and the manufacture of safety glass laminates.
Patent GB-1345007-A (GB)
Title: Method of coating photographic emulsions
IPC: G03C1/74
Filed: 1971-12-20
Abstract: 1345007 Silver halide emulsion FUJI PHOTO FILM CO Ltd 20 Dec 1971 [23 Dec 1970] 59196/71 Heading G2C A single coating layer of a heterogeneous silver iodobromide emulsion is applied to a temporary support, the silver halide grains of the layer (before setting or after remelting) are allowed to separate by gravity into relatively coarse and fine fractions, the layer is set, and the set layer is transferred to a final support, a material having relatively coarse grains at or near the surface thereby being produced. An upper protective gelatine layer may be subsequently formed or transferred together with the emulsion layer from the temporary support. The temporary support may be of triacetyl cellulose, polyester, chromium-plated metal, stainless steel or paper. The final support may be of polyester. As shown, a temporary support 10 passes through coating 21, air doctor 22, solidifying 23, melting 24 and solidifying 25 stages whereafter the temporary support 10 and a final support 12 pass through melting 26, solidifying 27, drying 28 and peeling 29 stages.
Patent GB-595340-A (GB)
IPC: G03C5/08
Abstract: 595,340. Photographic copies. KODAK, Ltd., and SOPER, A. K. May 28, 1945, No. 13322. [Class 98 (ii)] A photographic copy of typewritten or printed matter or other line original is made by exposing to the original a photographic material comprising an unhardened light-sensitive silver salt emulsion coated on a support and having a dry-stripping layer between the emulsion and the support, processing the emulsion to form a silver image and a relief image coincident therewith, pressing the relief image into contact with a permanent support in the presence of water, and removing the first support by dry stripping. The dry stripping layer may be of gum dammar or gum sandarac with or without wax..The emulsion may be a negative or autopositive emulsion, and may contain the developing agent and be developed merely by immersion in plain alkali as in Specification 593,328. The relief image may be produced by development in a hardening developer and washing out with hot water, or by development in a non-hardening developer, removal of the image portions of the layer by means of an etch-bleach solution, fogging and re-development to silver. The permanent support may be of very thin paper. In an example, paper is successively coated with a gum dammar stripping layer and an unhardened autopositive gelatino silver bromide emulsion layer. Typewritten matter is contact printed on to this material and the image is developed in a caustic alkali-hydroquinone developer and the unhardened gelatine washed out with hot water. The material is immersed in cold water and contacted with a thin sheet of paper and the two sheets withdrawn, placed between blotting paper, passed between rollers and dried. The temporary support is then dry-stripped off. The exposure to the original may also be in a camera or by reflex copying. Specifications 555,383 and 568,652 also are referred to.
Patent GB-1450547-A (GB)
Title: Concrete making plant
IPC: B32B33/00
Filed: 1973-12-21
Abstract: 1450547 Concrete mixing plant E E KUHNER 21 Dec 1973 [30 Dec 1972] 59543/ 73 Heading B1C A concrete mixing plant comprises a housing 1 accommodating a mixer, metering apparatus for binder and water, a hoist and other devices, mounted on front and rear supports 3, 8 so that a vehicle may have access to the delivery pipe 10 either by an arcuate path through the plant or by a blind path radial to the arcuate path, the aggregate store 2 is arranged so that material can flow by gravity through a shutter into a weighing tip of the hoist when it is at the bottom of the hoist track 9. The part supports are splayed and inclined and may provide a stairway and service supply duct; their upper ends may be hinged to the housing to facilitate transportation. A cabin consisting of half shells (5, 6 Fig. 3 not shown) may be attached to the housing 1 as well as a soundinsulated control cabin 7.
Patent GB-1343407-A (GB)
Title: Preparation of l-a-hydrazino-beta-phenylpropionic acid compounds
IPC: C07C/
Filed: 1970-12-17
Abstract: 1343407 L-α-hydrazino-#-phenylpropionic acid compounds MERCK & CO Inc 17 Dec 1970 [18 Dec 1969 5 Feb 1970 24 Feb 1970 25 March 1970 (9)] 60035/70 Heading C2C L-Compounds containing not more than 10% of the D-form and having the Formula I (in which each of R<SP>1</SP> and R<SP>2</SP> is H, OH, C 1-6  alkoxy, phenoxy or benzyloxy, each of R<SP>3</SP> and R<SP>4</SP> is H or C 1-6  alkyl and R<SP>5</SP> is H, C 1-6  alkyl, a metal atom or, in the case of a multivalent metal, an equivalent of the metal) are prepared from a racemate or other mixture of the D and L-isomers by (a) seeding a saturated solution of the D,L-mixture or an acid addition salt thereof, with crystals of the L-isomer or an acid addition salt thereof and recovering the L-isomer or salt thus precipitated and, if necessary, converting the salt to the acid, or (b) by treating with an optically active isomer of an acylating agent (e.g. l-menthoxy acetyl chloride d-o-acetylatrolactic acid chloride) to produce a diastereoisomeric pair of acylates, separating them and hydrolysing the appropriate diastereoisomer to produce the desired L-diastereoisomer of the starting material, or (c) by treating with an optically active base to produce a diastereoisomeric pair of salts, separating the latter by fractional crystallization and regenerating the acid. Compounds I are useful as decarboxylase inhibitors and antihistaminics.
Patent GB-1487184-A (GB)
Title: Rotary tool holders
IPC: B23C5/26
Filed: 1973-12-29
Abstract: 1487184 Arbors BABB ENG CO Ltd 16 Dec 1974 [29 Dec 1973] 60139/73 Heading B3K A rotary toolholder of the kind comprising a body 10 carrying at a forward end thereof a separable screw threaded member 16 on which, e.g. a milling cutter is screw threaded, and including a radial locating face 15 against which the milling cutter abuts, is characterized in that the member 16 is formed with a head 19 slidably received within a recess in the body, the head is formed with at least one laterally presented face 23 which is inclined so that the width of the head 19 increases in a direction rearwardly from the locating face 15, and the body 10 is provided with a laterally offset locking screw 25 movable towards and away from the inclined face 23. In use the locking screw holds the screw threaded member 16 in a retracted position by engagement with the inclined face 23 nearer the narrower end of the head 19. To release the milling cutter the screw 25 is loosened to allow axial movement of the member 16. The head 19 may be a transverse head having a pair of oppositely facing diametrically opposite inclined faces (22), 23 (Figs. 2 and 3, not shown). A spigot 13 on the body 10 is bisected by a slot and recess 20 to receive the transverse head 19. The toolholder is rotated in a direction so that the torque drive is passed through the screws 25 to the member 16.
Patent GB-1358320-A (GB)
Title: Arrangement for releasably mounting a roller on a shaft for driving connection therewith
IPC: D01H4/00
Filed: 1971-12-29
Abstract: 1358320 Mounting rollers on shafts; ratchet clutches ELITEX-ZAVODY TEXTILNHO STROJIRENSTVI GENERALNI REDITELSTVI 29 Dec 1971 [28 Jan 1971] 60293/71 Headings F2U and F2C An end of a shaft 2 having a neck 8 (e.g. an eccentric cylinder) defined by shoulders 11 between an end portion 9 and a cylindrical portion, is inserted into a blind cylindrical recess 4 with an annular groove 7 in a roller 1, a member 4 (e.g. a cylinder) in the groove 7 jamming between the radially facing surfaces 12, 13 of the neck and groove at two positions to act as a double one-way clutch, to transmit rotation, axial location of the roller on the shaft being provided in one sense by the end 10 of the shaft abutting the blind end 5 of the recess 4, and in the other sense by the shoulder 11 co-acting with the member 3 in the groove 7, between the jamming positions, the end portion 9 may be relieved as at 91 to allow axial withdrawal of the shaft.
Patent GB-1208668-A (GB)
Title: Method of producing l-histidinol by fermentation
IPC: C07D233/64
Filed: 1968-12-24
Abstract: 1,208,668. L-Histidinol by fermentation. AJINOMOTO CO. Inc. 24 Dec., 1968 [30 Dec., 1967], No. 61351/68. Heading C2C. L-Histidinol is produced by culturing a histidine-requiring strain of Brevibacterium, Corynebacterium, or Arthrobacter under aerobic conditions in a medium containing assimilable carbon and nitrogen, and essential inorganic salts, and histidine, maintaining the culture at pH 5-9. Specified micro-organisms are B. flavum ATCC 21349, C. acetoacidophilum ATCC 21350, and A. citreus ATCC 21348, histidine is preferably present in an amount between 5 and 50 mg/dl., and the L-histidinol may be isolated as its di-hydrochloride salt by centrifugation, absorption on active carbon and ion-exchange.
Patent GB-1272868-A (GB)
Title: Correcting medium for removing unwanted printing areas from photomechanically prepared printing formes
IPC: G03F7/40
Filed: 1969-12-23
Abstract: 1,272,868. Treating printing plates. KALLE A.G. Dec. 23, 1969 [Dec. 30, 1968], No. 62610/69. Heading G2M. A material for removing unwanted printing areas of printing plates (and any ink thereon), e.g. for corrective purposes, comprises: (a) 20 to 60% by weight of glycol, polyglycol, glycol ether or polyglycol ether or a mixture of any thereof, (b) 10 to 50% by weight of a neutral organic solvent other than any of (a), (c) 3 to 25% by weight water, (d) 0À5 to 15% by weight acid or substance having an acid reaction in aqueous solution, (e) 5 to 25% by weight of thickening agent different from components (a) to (d); (a), (b) and (c) being completely miscible. Preferably (a) is triethylene glycol, (b) is methyl ethyl ketone and (e) is silica. Other suitable substances are named.
Patent GB-631548-A (GB)
Abstract: 631,548. Drawing, rolling, &c. PYRENE CO., Ltd., HOLDEN, H. A., SMITH & CO., WIRE MANUFACTURERS, Ltd., F., and SETTERINGTON, J. T. Oct. 14, 1947, No. 27564. [Class 83 (iv)] A method of lubricating metal prior to drawing, rolling or other operation involving plastic deformation comprises giving the metal a coating of a crystalline phosphate followed by a coating of one or more of the oxides, hydroxides and carbonates of calcium, strontium and barium and borax. In one example, steel wire to be drawn is given a phosphate coating by treatment with a solution of zinc phosphate containing an oxidizing accelerator and before being dried, is dipped in a 10 per cent aqueous suspension of slaked lime. Specification 455,077 is referred to.
Patent GB-2026079-A (GB)
Title: Magnetic connector
IPC: A44C5/20
Filed: 1978-07-20
Abstract: This invention relates to a magnetic connector consisting of a magnet 1 and an iron piece 5 or 5' to be attracted. The magnet 1 is coated with a thin layer of paint 2. The surface of an iron plate 3 to which the magnet 1 is attached and the piece 5 or 5' are plated with bright metal. The iron piece 5 or 5' is provided with a circular cavity 4 or 4' which fits tightly over the magnet when attracted by the magnet. <IMAGE>
Patent GB-2001540-A (GB)
Title: Oil recovery apparatus
IPC: E02B15/04
Filed: 1978-08-02
Abstract: The present invention provides oil recovery apparatus comprising first (11) and second (12) rope loops of an adsorbent material arranged for floating on the surface (13) of water contaminated by oil which is preferentially adsorbed by the loops, an extraction unit (21) through which the loops are simultaneously advanced to remove oil, and in respect of each loop one or more guide units at which the loop is guided around guide means (14, 15, 16, 17, 18 and 19), wherein the first and second loops both extend away from the extraction unit in the same or substantially the same direction and when both viewed from above advance in opposite rotational directions, whereby transverse loads exerted on the extraction unit by one of the loops are opposed by transverse loads exerted on the extraction unit by the other of the loops. <IMAGE>
Patent GB-2005241-A (GB)
Title: Chromic Oxide
IPC: C01G37/033
Filed: 1978-09-14
Abstract: Chromic oxide is obtained from chromite-containing materials, by doing all the following steps (a) to (d):-     (a) Fuse the ore with a sodium oxide precursor. (b) Melt the fusion product of (a) with an alkali metal chloride and components which form a sodium borate glass preferably of substantially sodium diborate composition, under oxidising conditions. There result separable salt and glass phases. (c) Under reducing conditions, fuse the salt phase from (b) with components which will form a borate melt. There again result separable salt and glass phases. (d) Crush the glass phase of (c) and leach with water. Separate the residue. This comprises the chromic oxide. o
Patent GB-2005920-A (GB)
Title: Timer for a washing machine
IPC: D06F33/04
Filed: 1978-09-14
Abstract: A washing machine including a motor (37), whose direction of rotation is repeatedly reversed, has a timer 82 including a bistable device 67 driven alternately in opposite directions, by a pin 66 on a worm wheel 64 by the motor (37) for controlling the direction of rotation. The bistable device (62) also drives a timer counter (82) through a one-way clutch mechanism. The machine has a removable hinged cover containing the drive motor 37 which is coupled to a toothed rim of the drum through a gear wheel projecting from the cover. <IMAGE>
Patent GB-2008719-A (GB)
Title: Fixing a Driving Wheel on a Shaft
IPC: F16H57/00
Filed: 1978-11-17
Abstract: A driving wheel is fixed on a shaft without the use of a key. The wheel (e.g. a sprocket 30) and a locking ring (e.g. the inner race 6 of a bearing 4 in which the shaft is journalled) have bores fitting the shaft and mating peripheral surfaces 24, 22 which are eccentric relative to the bores. Transmission of torque through the wheel and shaft automatically binds the wheel and shaft against each other and to the shaft. A supplementary grub screw 37 is not essential, but may be provided to hold the assembly tight, prior to torque transmission.   <IMAGE>
Patent GB-2012833-A (GB)
Title: Method of Producing Recording Sheets
IPC: B41M5/155
Filed: 1978-12-07
Abstract: A receiving sheet for pressure- sensitive colour-reactive copying paper is produced by coating on a support a coating composition containing a water-soluble polyvalent metal salt and then a coating composition containing an alkali metal salt or an ammonium salt of an aromatic carboxylic acid. The receiving sheet has excellent flatness and surface strength.