baber/WOPTO huggingface dataset:
Patent GB-1187616-A (GB)
Title: Production of Adiponitrile
Filed: 1967-10-16
Abstract: 1,187,616. Dimerization of acrylonitrile to adiponitrile. TOYO KOATSU INDUSTRIES Inc. 16 Oct., 1967 [18 Oct., 1966], No. 46971/67. Heading C2C. Adiponitrile is obtained by reductively dimerizing acrylonitrile by reacting an aqueous solution of acrylonitrile with an alkali or alkaline earth metal amalgam and acid in the presence of an optionally substituted tetraalkyl arsonium compound as a catalyst and maintaining the pH of the reaction solution at 2-12, the acid used being an inorganic or organic acid or a substance capable of providing acidity in the aqueous solution. The tetraalkyl arsonium catalyst employed is suitably of the formula wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are C 1-20  alkyl radicals which may be substituted, e.g. by -OH or -Br, and [X-] is an anion chosen from Cl-, Br-, I-, SO 4  =, RSO 4 - wherein R is a C 1-4  alkyl radical, SCN-, OH-, PO 4 #, the sulphonic acid anion, a carboxylic acid anion, the benzoic acid anion or the phosphonate anion, and it may be used in an amount of 0-0001 to 0À01 mol per mol of acrylonitrile. The acid employed may be hydrochloric, sulphuric, acetic or a sulphonic acid, carbon dioxide or sulphur dioxide, and the reaction is suitably effected at a temperature of 10-50 C. An organic solvent capable of dissolving the acrylonitrile in water may be present, suitable solvents being mono- and dialkylamides, dialkyl sulphoxides, dialkylsulphones, hexaalkylphosphoramides, aliphatic alcohols, acetone, N-methyl pyrrolidone and acetonitrile and the amalgam employed, which is suitably of a concentration of 0À015 to 0À7% by wt., is preferably sodium or potassium amalgam. Suitable forms of apparatus in which the process may be carried out are described and the product mixtures obtained may be worked up by conventional methods.
Patent GB-1127503-A (GB)
Title: Improvements in the production of thermoplastic films
IPC: C08J9/26
Filed: 1966-10-20
Abstract: 1,127,503. Paper-like films. SEKISUI KAGAKU KOGYO K.K. 20 Oct., 1966 [20 Oct., 1965; 2 Feb., 1966; 18 May, 1966; 28 June, 1966], No. 47041/66. Heading B2E. [Also in Divisions B5 and C3] Paper like microcellular thermoplastic film obtained by making a film composed of a thermoplastic resin and a water-soluble polymer of ethylene oxide, contacting the film with water to leach out some of the polyethylene oxide and impregnating with a foaming agent which is subsequently decomposed may be coated by similar methods to those used on conventional pulp papers. The film can be treated with strengthening agents e.g. melamine-urea resins, polyvinyl acetate or chloride, phenoxy or acrylic resins, butadiene polymers, natural or synthetic rubbers; water repellents e.g. rosin size, paraffin wax, or silicone resins; water-proofing agents e.g. polyvinyl chloride polystyrene or asphalt; welting agents, e.g. carboxymethyl cellulose, celluronic acid; and finishers such as starch casein and melamine resins.
Patent GB-1186252-A (GB)
Title: Method and Apparatus for Recording Information in Coded Form.
Inventor: TORLEY ROBERT E
IPC: G06K7/12
Filed: 1967-02-01
Abstract: 1,186,252. Typewriters; selective printers. AMERICAN CYANAMID CO. 1 Feb., 1967 [9 Feb., 1966 (5); 14 Oct., 1966], No. 47107/69. Divided out of 1,186,251 Heading B6F. [Also in Division C4] A typewriter or selective printer is provided with type bars or type carriers which encode a selected alpha-numeric character in a binary code, the bits of which are impressed in different photo-luminescent inks, which for retrieval of the printed character are exposed to irradiation with u.v. light. Type bar machines; types and printing surfaces; inking pads; electric input signals.-A typewriter is provided in addition to its usual type bars (not shown) with coded type bars 110b, Fig. 4, including a head 110a, having a number of projections 112, 114 arranged in a binary combination and co-operating with a respective ink ribbon band (101 . . . 106, Fig. 2) impregnated with different photo-luminescent ink. In another embodiment the coded type bars may be replaced by a reciprocated hammer 312, Fig. 10, actuated by output signals from a decoding matrix and co-operating with a rotary disc 304 sub-divided into six segments (305 . . . 310, Fig. 11) each of which is impregnated with a different photo-luminescent ink. In a further embodiment an adding machine is modified in that the type bars 70 . . . 74, Fig. 8, are provided with spring biased slugs 1 . . . 10 associated with anvils 221<SP>1</SP> and impelled by hammers 222<SP>1</SP> into contact with a record medium 79 to impress the selected numeric character in a respective photo-luminescent ink contained in an inking pad 75 sub-divided into a number of different reservoirs by partitions 76 of plastics material or metal to prevent intermingling of the different photo-luminescent inks. Matrix printing heads; electric input signals; dies and printing surfaces; inking arrangements.-The code type bars 110b, Fig. 4, may be replaced by a matrix head 424, Fig. 14, comprising six rods 431 . . . 436, Fig. 13, arranged in two vertical columns and actuated by a decoding matrix 426 whose output signals are applied to transducers 437 the cores 441, 443 displace the rods 431 . . . 436 into contact with a record medium (420, Fig. 12). The rods are porous and ink with different photo-luminescent inks from associated reservoirs 428. In a modification the matrix head may have four rods (572 . . . 575, Fig. 15) extending in the letter spacing direction and co-operating with respective ink-ribbons (582 . . . 585) or extending in the line spacing direction (Fig. 17) and co-operating with an ink ribbon having four bands each of which is impregnated with a different photo-luminescent ink.
Patent GB-955614-A (GB)
Title: New steroid compound and processes
IPC: C07J75/00
Filed: 1961-03-08
Abstract: The invention comprises a compound having the formula: <FORM:0955614/C2/1> and a process for the preparation thereof by treating 17a  - hydroxy - 16a  - methyl - pregna - 4, 9 (11) - diene - 3, 20 - dione with iodine in the presence of calcium oxide and calcium chloride. Said starting compound may be obtained by oxidizing 3a , 17a -dihydroxy-16a -methyl-pregna-11, 20-dione, at the 3-position and brominating the product to form 4-bromo-17a -hydroxy-16a -methyl-pregna-3, 11, 20-trione which is then dehydrobrominated to form 17a -hydroxy-16a -methylpregn-4-ene-3, 11, 20-trione, ketalizing the said 17a -hydroxy-16a -methylpregn-4-ene-3, 11, 20-trione, reducing the 3, 20-diketal at the 11-position to yield the corresponding 3, 20-diketal of 11b , 17a -dihydroxy-16a -methylpregn-4-ene-3, 20-dione, followed by dehydration thereof to yield the corresponding 3, 20-diketal of 17a -hydroxy-16a -methyl-pregna-4, 9(11)-diene-3, 20-dione and hydrolyzing the latter to form 17a -hydroxy-16a -methyl-pregna-4, 9(11)-diene-3, 20-dione. Specifications 934,702 and 955,613 are referred to.
Patent GB-1310077-A (GB)
Title: Epoxy resins
IPC: C08K5/17
Filed: 1971-10-12
Abstract: 1310077 Inhibiting crystallization of epoxy resins GENERAL MILLS CHEMICALS Inc 12 Oct 1971 [12 Oct 1970] 47502/71 Heading C3B The crystallization of liquid epoxy resins is inhibited by addition of a minor amount, e.g. 0À02-3À0 parts by wt. per 100 parts by weight of resin, of 2-amino-2-ethyl-1,3-propanediol. Examples relate to liquid diglycidyl ethers of bisphenol A which may be in the form of 50% by wt. aqueous emulsions.
Patent GB-1017514-A (GB)
Title: Improvements in and relating to fuel consumption indicators
IPC: G01F9/02
Filed: 1962-12-17
Abstract: 1,017,514. Measuring fuel consumption electrically. H. GARLICK. Dec. 13, 1963 [Dec. 17, 1962], No. 47550/62. Headings G1K and G1N. [Also in Division F1] An I.C. engine fuel consumption indicator comprises an ammeter 26, (Fig. 1), means for deriving from the ignition system a current dependent on the engine speed, means coupled to the engine control member 24 to produce a current dependent on the setting of the control member indicative of the fuel consumption, and a circuit for applying the currents additively to the ammeter. Current from battery terminal 14 passes through resistor 20 and potentiometer 21, whose slider 23 is linked mechanically to throttle control lever 24, to produce a current through rectifier 25, ammeter 26 and calibration resistor 27 proportional to the setting of control 24. A zener diode 22 stabilizes the voltage across the potentiometer 21. Pulses generated by contact breaker 18 are fed through resistor 28, capacitor 29, resistor 31 and ammeter 26, the average current being proportional to engine speed. Reactance may be introduced into the circuit in order to change the shape of the current/engine speed curve. The calibration resistor 27 may be arranged in parallel with the ammeter 26, and separate calibration resistors may be provided for adjusting each current. The ammeter indication is compared with a separate speed indication (not shown) to determine the fuel consumption in gallons per mile.
Patent GB-1026807-A (GB)
Title: Method for producing powdered alpha alumina containing magnesium oxide,and the preparation of high-density translucent alumina ceramic therefrom
IPC: C04B35/10
Filed: 1962-12-18
Abstract: Powdered a -Al2O3 containing 0.06 to 1% MgO is prepared by heating a mixture of Al2(SO4)3 and a magnesium salt decomposable to MgO to a temperature up to 1100 DEG  C., e.g. 950-1100 DEG  C., to drive off volatile components and form powdered g -Al2O3, and further heating to up to 1700 DEG  C., e.g. 1200-13- DEG  C., to convert g -Al2O3 to a -Al2O3.  Commercial mono-clinic Al2(SO4)3.#cH2O (#c is 12-18) may be used, and the magnesium salt may be sulphate, nitrate or carbonate.  The mixture of a -Al2O3 and MgO may be formed into translucent alumina ware by crushing to - 18 mesh B.S.S. and pressing at 5 to 50 tons/sq. inch to give a compact of density not less than 35% that of a single alumina crystal.  This compact is fired in air at 800-1200 DEG  C. for e.g. 1 hour, machined to shape, and fired at 1700-1950 DEG  C. in H2 or vacuo to remove air pores.
Patent GB-1448902-A (GB)
Title: Method of forming corrugated heat exchanger tube and tubes for heat exchangers
IPC: B21D15/02
Filed: 1974-05-02
Abstract: 1448902 Making heat exchanger tubing OLIN CORP 2 May 1974 [10 May 1973] 48044/75 Divided out of 1448901 Heading B3A A method of making a corrugated heat exchanger tube from metal strip comprises forming longitudinally extending corrugations in the strip leaving longitudinally extending edge portions of the strip uncorrugated, the edge portions having a combined width less than 20% of the corrugated strip width, forming the corrugated strip into a tube with the strip edges in longitudinal abutment and with the uncorrugated portions intercepting the corrugated portion and the peaks of corrugations, and welding the strip edges together. The method is described in Specification 1,448,901.
Patent GB-1474356-A (GB)
Title: 6-alpha-carbethoxy-1-adamantylacetamido-penicillanic acid  salts thereof and a process for their preparation
IPC: C07D499/72
Filed: 1975-11-21
Abstract: The sodium salt of the novel penicillin of the formula <IMAGE> possesses antibacterial properties. It is prepared by reacting 6-aminopenicillanic acid, in the form of the trimethylsilyl ester of its N-trimethylsilyl derivative in methylene chloride solution, with alpha -carbethoxy-1-adamantylacetyl chloride, purifying the resulting product by chromatography on a silica gel column and by elution with a methylene chloride/methanol mixture, subsequently, after removal of solvent under reduced pressure, dissolving the solid residue in a dilute solution of sodium bicarbonate and isolating the novel penicillin, as the sodium salt, by lyophilisation (freeze drying) of the solution.
Patent GB-1242488-A (GB)
Title: Improvements relating to miniature variable condensers
IPC: G04F5/06
Filed: 1969-09-30
Abstract: 1,242,488. Variable capacitors. SUWA SEIKOSHA K.K. 30 Sept., 1969 [2 Oct., 1968], No. 48078/69. Heading H1M. [Also in Division H3] A variable capacitor comprises a single evaporated thin film electrode plate overlapping two or more separate thin film plates and lead terminals with contacts for bringing each or a combination of the latter into play for step-bystep variation of the total capacitance. As shown, the separate plates 2 deposited on the substrate have areas in geometric progression and are selected by screwing flexible contact plates in to engagement with the electrodes. Electrodes 2 may be chrome-gold, dielectric layer 3 silica and single upper electrode 4 aluminium. The latter may be protected with a thin covering of silica.
Patent GB-1037289-A (GB)
Title: Improvements in and relating to hydraulic valves
Inventor: EYRE IVAN DAVID
IPC: F16K11/07
Filed: 1963-12-06
Abstract: 1,037,289. Valves. ARMSTRONG PATENTS CO. Ltd. Dec. 1, 1964 [Dec. 6, 1963], No. 48234/63. Heading F2V. [Also in Division G3] A manually actuated spool valve for selectively directing hydraulic fluid, e.g. for control in tractors, earth moving machinery and cranes, is retained in neutral position (Fig. 1) by centring spring 78 whereby pressure fluid entering port 16 passes to reservoir port 18 and, upon displacement of spool 20 to the right until a detent 58 engages a groove 25, a conical head 30 enters narrowed chamber portion 32 to restrict flow therethrough which is diverted to unseat closure 40, against spring 44, to supply a service line, e.g. to operate a ram, via port 14. A passage 74 connects through the valve body between port 16 and spring chamber 76 to equalize force upon the spool. When the service line is filled the consequent pressure rise displaces a relief valve 50 whereby a transverse port 64 thereof, communicating via spring chamber 51 and passage 68 with port 18 and passage 54 to equalize pressure on both sides of detent piston 56, is closed and transverse port 72 is opened to passage 60 whereby pressure fluid is applied to piston 56 to release the detent and the spool 20 is returned to the neutral position and continued displacement of valve 50 thereafter connects extension 17 of port 16 directly to passage 54. The consequent release of pressure build-up enables valve 40 to seat at 34 to retain pressure fluid in the service line which may gradually be released therefrom upon displacement of spool 20 to the left so that closure 46 is unseated by abutment of conical head 30 with spigot 48, provided with a gradually increasing taper. In the Fig. 2 embodiment position (not shown), the spool is engaged by detent 120 with pressurized fluid supplied from port 110 to service port 112 until relief valve 124 operates to permit flow via passage 128, constricted passage 130 and passage 144 to reservoir port 114 and to release detent 120 to permit the spool to be returned by springs 138 to a centralized neutral position whereby pressurized fluid is directed from ports 110 to 114, via ports 140, 144 connected by spool passage 142, whilst pressure is retained in service port 112 by the central portion 119 of the spool. Upon moving the spool to the right, fluid is released from the ports 112 to 114 and the pump continues to discharge via ports 140, 144.
Patent GB-1199750-A (GB)
Title: Improvements in Plant for the Treatment of Rolled Wire Rod from the Mill Heat
IPC: C21D1/84
Filed: 1967-10-25
Abstract: 1,199,750. Controlled cooling of hot rolled wire rod. SCHLOEMANN A.G. Oct.25, 1967 [Nov. 5, 1966], No.48447/67. Heading C7N. Hot rolled steel wire rod from mill 1 is subjected to controlled cooling, e.g. to transform the texture of the steel from austenite to ferrite and pearlite or sorbite, by feeding it, preferably through water-cooled feeding device 2, on to rotating tube reel 3 which deposits the rod as coils alternatively on to one of two coil-collecting appliances e.g. baskets 15, one being equipped for bath patenting e.g. in salt bath container 10 (as shown) the other (7, Fig. 2) for air patenting. Tube reel 3 may rotate about a horizontal (as shown) or vertical axis, depositing non-concentric overlapping turns by means of tripping edge 5 upon a conveyer device e.g. belt 8 or roller bed arranged to slew horizontally about a swivel pivot 9, the end of the conveyer device being connected to the coil-collecting appliance. The appliance equipped for air patenting may be arranged immediately beneath or behind the rotating tube reel. The conveyer device may be connected with an air blast or suction appliance for cooling quickly to 600-700‹ C. to produce air patented steel wire rod having a lamellar pearlite texture. Alternatively the device e.g. belt 8 may be covered with an insulating casing 8a filled with neutral gas. For bath patenting, salt bath container 10 may be provided with heating and cooling means (not shown), and contain rods 11 supported upon driven eccentric shafts 12, 13 outside for reciprocating the coils forming upon collecting baskets 15. A lead or fluidized bed may be used instead of a salt bath.
Patent GB-1164497-A (GB)
Title: Diaphragm Valve
IPC: F16K7/12
Filed: 1966-10-31
Abstract: 1,164,497. Valves. GRINNELL CORP. 31 Oct., 1966 [16 Nov., 1965], No. 48694/66. Addition to 1,080,902. Heading F2V. The valve of the parent Specification is modified, in that the diameter of the end openings 14, 16 measured at right angles to the length of the flow passage is at least as great as the width dimension of the diaphragm opening 18 measured at the seat 36 at right angles to the length of the flow passage. The end openings are circular or approximately so. The ends of the flow passage may extend over a distance 12a, Fig. 1 (not shown), so that the required reduction in cross-sectional area takes place over a comparatively shorter distance corresponding to the remainder of the flow passage. The diaphragm opening may be of hour-glass shape, Fig. 18 (not shown). In the case of non-circular end openings, which do not differ greatly in their maximum and minimum dimensions, it is the maximum dimension which must be compared with the width dimension of the diaphragm opening.
Patent GB-1151920-A (GB)
Title: Process for Making Multi-Layer Film from Thermoplastic Polymeric Materials.
Inventor: LEE ROBERT EDWARD
IPC: B29C48/08
Filed: 1966-10-31
Abstract: 1,151,920. Composite films. DOW CHEMICAL CO. 31 Oct., 1966 [1 Nov., 1965], No. 4874/66. Heading B5B. Composite multilayer films comprising a synthetic thermoplastic polymer unstable to heat encapsulated in a heat stable synthetic thermoplastic polymer are produced by feeding the heat stable polymer from an extruder 11 through a conduit 12 to a sheeting die 13, the conduit being in operative communication with a second conduit 23 which supplies the material which is unstable to heat from an extruder 22 so that a composite coaxial stream of material is formed prior to entering the cavity of the die and extruding the composite film from the slot 17, heat being applied to the heat stable material at the point of discharge from the die, by means 19 and 20. Vinylidene chloride, or a copolymer containing at least 50% thereof with vinyl chloride, vinyl acetate, acrylonitrile, ethylacrylate or methylmethacrylate may be used as the encapsulated layer, and a polyolefin vinyl chloride, polystyrene or cellulose ester may be used for the outer layers.
Patent GB-1485053-A (GB)
Title: Ionizer assemblies in electrostatic air cleaning apparatu
IPC: B03C3/41
Filed: 1974-11-12
Abstract: 1485053 Electrostatic precipitators CHEMTOOL Inc 12 Nov 1974 48948/74 Heading B2J The subject matter of this Specification is substantially the same as that described in Specification 1485054, but the claims are concerned with the ionizer assembly of the precipitator. As shown, spaced members 16, 17 support a plurality of couples of ionizer wires 22, each couple being tensioned by a single spring 43. One wire of each couple is located upstream relative to the flow of air through the precipitator and is associated with a grounded ionizer tube 29, whilst the other wire is located downstream and is associated with another grounded tube.
Patent GB-1518540-A (GB)
Title: Diapers
IPC: A61F13/551
Filed: 1975-11-28
Abstract: 1518540 Absorbent pad assembly with disposal bag COLGATE-PALMOLIVE CO 28 Nov 1975 [12 Dec 1974] 49034/75 Heading ASR An absorbent pad assembly is fitted with a rolled-up bag in which the pad can be disposed after use. The pad assembly may comprise an impermeable back sheet, an intermediate absorbent layer and a fluid pervious top sheet. The rolled bag 53. may be attached by one of its edges adjacent one end of the assembly and protected during use by folding over that end onto, e.g. adhesive patches 54. The assembly may have a box pleat, flat or inverted pleat configuration. After use the pleats and end flap 48 are unfolded at the bag end, Fig. 7, and the bag is detached. The bag may have adhesive closure strips.
Patent GB-1525927-A (GB)
Title: Phosphor materials
IPC: C09K11/77
Filed: 1975-11-05
Abstract: 1525927 Luminescence DEFENCE SECRETARY OF STATE FOR 5 Nov 1975 [13 Nov 1974] 49196/74 Heading C4S A phosphor material is produced by processing an intermediate divalent Eu activated mixed metal phosphate composition of the general formula before firing in a reducing atmosphere where M<SP>I</SP> is one of Li, Na, K, Rb, Cs; M<SP>II</SP> is one of Ca, Sr, Ba; a is 0À95 to 1À05 (e.g. 1À0), b is 0À95 to 1À05 (e.g. 0À98 to 1À03) and c is 0À0001 to 0À025 (e.g. 0À01), and an additive which is at least one of (i) a carbonate, silicate of a said Group Ia element, (ii) a carbonate, silicate, or aluminate of a said Group IIa element in such proportions that any of said carbonate, silicate or aluminate comprises up to 0À7 mole of the mixture, the phosphor being capable of electroluminescence, fluorescence, phosphorescence, and/or cathodoluminescence. The components may be slurried with water, and fired in a reducing atmosphere at 900 to 1200‹ C. so that sintering or fusing does not occur. Alternatively, starting materials for the intermediate.composition are mixed with at least one of a carbonate, or silicate of the Group Ia or Group IIa elements, or an aluminate of the Group IIa elements, slurrying, grinding, and firing stages being detailed before a further firing at 900 to 1100‹ C. in a reducing atmosphere. Specific phosphors are disclosed.
Patent GB-1378984-A (GB)
Title: Perfluoroalkene sulphonamides
IPC: C07C311/09
Filed: 1972-10-25
Abstract: 1378984 Perfluoroalkanesulphonamides BAYER AG 25 Oct 1972 [26 Oct 1971] 49231/72 Heading C2C [Also in Division D1] Perfluoroalkanesulphonamides of the general formula in which the groups R f  are identical or different perfluoroalkyl radicals; A is an alkylene chain which is optionally interrupted by one or more oxygen or sulphur atoms; R 1  and R 2  are each H or an optionally substituted alkyl group; n is an integer of 1 to 4 and m is 0 or 1 and dimers thereof in which two moieties of the general Formula I are linked by a common group R 1  or R 2 , the said common group being an optionally substituted alkylene group, are prepared by reacting an amine of general formula 'with a perfluoroalkanesulphonyl halide of general formula R f -(CH 2 CH 2 ) m -SO 2 X in the presence of an acid binding agent at 0-150‹ C. Compounds in which at least one of R 1  and R 2  is an alkyl group are obtained by alkylating with a substituted alkane or perfluoroalkanesulphonamide in which R 1  and R 2  are both H. Where at least one group R 1  or R 2  has an acyloxy group as substituent this is obtained by acylating the perfluoroalkanesulphonamide having a hydroxyalkyl group as R 1  and/or R 2 . Amongst numerous examples the compounds and N - methyl - N<SP>1</SP> - (2 - acryloyloxyethyl)- N,N<SP>1</SP> - di - perfluoro - octanesulphonyl - propylenediamine are obtained.