baber/WOPTO huggingface dataset:
Patent GB-1090487-A (GB)
Title: Triethylenic esters and acids and their preparation
Inventor: CHABARDES PIERRE JEAN ANTOINE
IPC: C07C51/09
Filed: 1966-02-04
Abstract: Triethylenically unsaturated carboxylic acid esters are prepared by reacting at least two molecular proportions of a conjugated di-olefine and one molar proportion of an acrylic and methacrylic ester in the presence of an organometallic complex of zerovalent nickel as a catalyst.  Butadiene, isoprene or piperylene may be used as the diene and propyl, butyl, hexyl and octyl acrylates or methacrylates are mentioned. The nickel complex may be prepared in situ by the reduction of nickel acetylacetonate optionally in the presence of an electron donor. Novel compounds are 2,5,10- and 3,5,10-alkatrienoic acids and their esters, specifically methyl 2,5,10 and 3,5,10 undecatrienoate, t-butyl 2,5,10-undecatrienoate and 3,5,10-undecatrienoic acid.
Patent GB-946657-A (GB)
Title: 18-oxygenated steroids and process for their manufacture
IPC: C07J75/00
Filed: 1960-02-12
Abstract: 946,657. 18-Oxygenated steroids. CIBA Ltd. Feb. 12, 1960 [Feb. 12, 1959; April 23, 1959; May 29, 1959; Dec. 22, 1959], No. 5110/60. Heading C2U. The invention comprises (1) a process for the preparation of an 18-hydroxy-, 18-acyloxy- or 18-oxo-pregnane, wherein an 18,20-oxido-pregnane is subjected to the action of an acylating agent and, if desired, the resulting 18-acyloxypregnane is hydrolysed to the 18-hydroxypregnane and, if desired, the 18-hydroxyl group in a resulting # <SP>20</SP>-pregnene is oxidized to an 18-oxo group and/or, if desired, the 20,21-double bond is hydroxylated; and (2) 3#, 18, 20α-trihydroxy-5α-pregnane or an ester thereof; 3#,18, 20#,21-tetrahydroxy-5a-pregnane; 3α, 11α, 18, 20α- or #-tetrahydroxy-5#-pregnane or an ester or ether thereof; 3#, 11#, 18, 20-tetrahydroxy - 5α- pregnane or an ester thereof; #<SP>4</SP>-3-keto-11α, 18, 20α-trihydroxy-pregnene or an ester thereof; 3, 11- diketo - 18, 20α - dihydroxy - 5# - pregnane; #<SP>4</SP>-3, 11 - diketo - 18, 20α-dihydroxy-pregnane or an ester thereof; and #<SP>20</SP>-18-hydroxy and 18- oxo-steroids of the pregnane series. Acylating agents for use in process (1) may be aliphatic carboxylic acid anhydrides, advantageously used in presence of an acidic catalyst. If this catalyst is a Lewis acid such as a metal halide there are obtained predominantly 18, 20-diacyloxy-pregnanes, while, especially at a somewhat raised temperature, if a strong acid such as sulphuric or p-toluene-sulphonic acid is used as catalyst #<SP>20</SP>-18-acyloxy-pregnenes are mainly formed. Oxo groups present e.g a 3-keto group, are converted to enol acylates in this process. The acylating agent may alternatively be an aliphatic acid halide, when 18-acyloxy-20-halides are formed which, on treatment with an alkali, give the 18,20-oxido-compounds again, or which, on treatment with a tertiary organic base, give the #<SP>20</SP>-18-acyloxy-pregnenes (which may also be obtained by heating the 18, 20-oxido compounds with an aromatic acid chloride at a high temperature). Alkaline hydrolysis of 18, 20-diacyloxypregnanes gives the 18, 20-dihydroxy compounds, other acyloxy groups present also being hydrolysed. #<SP>20</SP>-18-acyloxy-pregnenes similarly give #<SP>20</SP>-18-hydroxy-pregnenes, which on oxidation give the 18-oxo compounds. The starting materials for the present process may contain free, esterified or etherified hydroxyl groups, free or ketalized oxo groups, alkyl groups or halogen atoms in one or more positions of the steroid nucleus or the 21-position, and they may also contain double bonds, particularly in the 4, 5 or 9(11) positions. Products containing no 11- substituent can be hydroxylated microbiologically while free hydroxy groups can be esterified or etherified. Detailed examples are provided. Specifications 946,656, 946,658, 946,659 and 946,660 are referred to.
Patent GB-1421292-A (GB)
Title: Refractory casting tube for casting hot liquid metals
IPC: B22D41/50
Filed: 1973-02-01
Abstract: 1421292 Continuous casting VEREINIGTE OSTERREICHISCHE EISEN UND STAHLWERKE AG 1 Feb 1973 [3 Feb 1972] 5166/73 Heading B3F A pouring tube for passing molten metal into a mould, e.g. for casting steel, has a head 4 intended to be immersed in the receiving vessel and having at least one vertical outlet 8 or 9 connected to the bore 7 by a lateral passageway 10. A pouring tube blank 1 is shown and this requires boring to produce the passageway 10, the resulting hole 11 through the wall being subsequently closed by a plug 13 with a screwthread 12 or by a rammed mass of refractory material. The blank is formed by pressing plastic refractory material in a die incorporating mandrels or by casting pasty refractory material in a mould with cores. In either case the material is eventually fired. For slab casting there may be a vertical outlet at each corner of a rectangular sectioned head of a pouring tube or there may be two tubes on opposite sides of the mould axis. The metal flow, directed by a tube, flushes inclusions, up to a slag layer at the surface.
Patent GB-1247829-A (GB)
Title: Improvements relating to flavourings
IPC: A23L27/20
Filed: 1968-09-11
Abstract: 1,247,829. Flavourings. POLAK'S FRUTAL WORKS N.V. and DOUWE EGBERTS KONINKLIJKE TABAKSFABRIEK-KOFFIEBRANDERIJEN-THEEHANDEL N.V. 11 Sept., 1968 [11 Sept., 1967], No. 5188/71. Divided out of 1,246,644. Heading A2B. [Also in Division C2] A food, beverage, or medicine, for example a coffee concentrate, is flavoured by the addition of one or more ketones, furane derivatives, or thiazole compounds selected from:- 2,3 - dimethyl - cyclopent - 2 - en - 1 - one, mmethyl acetophenone, hepten - 3 - one.- 2, 4- phenylbutanone - 2, 2 - acetyl - 4 - isopropenyl- 1 - cyclopentene, 2 - methyl - 3 - (2' furyl) - propenal, 2 - acetyl - 3 - methylfuran, 2 - propionyl - 3 - methylfuran, 3 - (5 - methyl - 2 - furyl) acrolein, 2 - methyl thiazole, 2 - acetyl thiazole, 2 - ethyl thiazole, 4,5 - dimethyl thiazole, 2,5 - diethyl thiazole, and 2 - acetyl - 3 - methyl thiophene.
Patent GB-1440148-A (GB)
Title: Coating of surfaces
IPC: H01J17/49
Filed: 1974-02-05
Abstract: 1440148 Coating with glass MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 5 Feb 1974 05244/74 Heading C1M [Also in Division B2] The surface of an article is coated by forming a suspension of particles of coating material in a non-solvent carrier, cooling the surface to below the solidification temperature of the carrier, contacting the suspension with the cooled surface so as to form a solidified layer of suspension on the surface, the carrier in the suspension being at above the solidification temperature of the carrier before contact, removing the carrier from the layer and causing the remaining particles to form a continuous layer on the surface. The coating material may be a resin or glass. The carrier may be a chlorofluoroethane and suitable materials are specified. A binder may be present to assist in the adhesion of the particles to the surface in amount 0À1-5À0% by weight. In the examples the method is used to coat wire resistors with a low melting glass of PbO 88; B 2 O 3  12 in percentages by weight, in ethylcellulose as binder and a carrier of chlorofluoroethane.
Patent GB-1419379-A (GB)
Title: Spot facing machine
IPC: B23C3/00
Filed: 1972-02-04
Abstract: 1419379 Spot facing machine LUCAS INDUSTRIES Ltd 28 Feb 1973 [4 Feb 1972] 5273/72 Headings B3K and B3B A spot facing machine comprises mounting means, work table 11, for carrying a workpiece 40, means for supporting a conical milling cutter 22 so that the longitudinal axis thereof is inclined to the plane of the required spot face at an angle which is substantially equal to half the included angle of the milling cutter, adjusting means for positioning the milling cutter relative to the mounting means, first drive means, motor 21, for rotating the milling cutter about its conical axis and second drive means for circulating the milling cutter in the plane of the required spot face. The second drive means consists of electric motor 29, gearbox 30 and flywheel 28 rotatable in plinth 16. A member 31 is supported in the flywheel for rotation about an axis parallel to but spaced from the axis of the flywheel. A crank pin 34 extends from member 31 and is eccentric therewith a distance equal to that between the axes of the flywheel and member 31. A worm 32 and wheel 33 enable member 31 to be rotated so that the eccentricity of pin 34 with the flywheel can be adjusted between a maximum and zero. Pin 34 is journalled in a bush 35 mounted in a connecting rod 36 which is secured to saddle 19 which is slidable and mounts milling-cutter 22. A block 20 has a rack 24 thereon so that it can be moved independently of saddle 19. The rack engages a pinion 23 connected to a handle 25. Loaded pawls 26, 27 oppose movement of block 20 to the right relative to saddle 19. In operation the throw of pin 34 is set as required. Cutter 22 is positioned by wheel 25 initially clear of the workpiece. Motor 29 is started causing the tip of cutter 22 to follow a circular path parallel to table 11. Cutter 22 is rotated by motor 21 and advanced by wheel 25.
Patent GB-1253552-A (GB)
Title: Heat treatment of high tensile steel
IPC: C21D1/18
Filed: 1969-01-31
Abstract: 1,253,552. Heat treating alloy steel. MITSUBISHI JUKOGYO K.K. Jan.31, 1969 [Jan.31, 1968], No. 5364/69. Heading C7A. A steel containing in percentage by weight:- is heated above the A 3  temperature; when the combined content of Mo + Cr + Mn + Ni is less than 3.2% the steel is cooled from 800‹ to 500‹C. in 2.1 to 54 seconds followed without interruption by cooling from 500‹ to 200‹C. in more than 15 seconds; when the combined contents are from 3.2% to less than 3.8% the corresponding periods are 2.3 to 70 seconds and more than 20 seconds, and when the combined contents are 3.8% or more the periods are 2.4 to 80 seconds and more than 24 seconds. The steel may then be tempered.
Patent GB-762987-A (GB)
Title: Improvements in or relating to wedge wire sieves
IPC: B07B1/46
Filed: 1954-02-24
Abstract: 762,987. Filters. LOCKERS (WEDGE WIRE), Ltd., [formerly WEDGE WIRE MANUFACTURERS, Ltd.], and DICKER, G. A. Feb. 15, 1955 [Feb. 24, 1954], No. 5383/54. Class 46. [Also in Group II] A sieve for liquid filtering comprising laterally spaced wedge-section wires A with offset loops through which cross-bars B are threaded, includes outer channel members D through the downwardly extending flanges of which the ends of the bars are passed. The outer ends of the bars are riveted over at F and the bars are welded at G to the inner sides of the channel flanges. An intermediate channel support E may be provided to which the bars are similarly welded. Straps K are welded to the ends of the channel members which have been filled in by plates H, and straps L secured to the straps K support the ends of the wires.
Patent GB-306414-A (GB)
Title: Manufacture of hydrogenated amines
Filed: 1929-02-18
Abstract: 306,414. I. G. Farbenindustrie Akt.- Ges. Feb. 18. 1928, [Convention date]. Hydroaromatic amines are obtained by treating a phenol or a hydrogenated phenol with ammonia or an amine in the presence of hydrogen and a hydrogenation catalyst. The reaction is conducted in either the gaseous or liquid phase at a temperature which is substantially lower than 290‹ C., being preferably at about 180- 190‹ C., and with or without the use of pressure. The presence of hydrogen may be dispensed with when treating a hyrogenated phenol with ammonia or an amine to produce wholly or partially hydrogenated amines. Examples are given of the preparation of a mixture of mono- and di-cyclohexylamines by (1) heating equimolecular proportions of phenol and aniline with freshly-reduced nickel and hydrogen under pressure, (2) conducting hydrogen containing the vapour of cyclohexanol and aniline over heated reduced nickel, and (3) passing cyclohexanol vapour and ammonia over heated nickel.
Patent GB-823947-A (GB)
Title: Low pressure oxo synthesis
IPC: C07C27/22
Filed: 1956-02-22
Abstract: Aldehydes are produced from an olefin feed by a carbonylation process in which an olefininsoluble cobaltiferous material, dispersed in at least a part of the olefin feed, is reacted in a first reaction zone with a mixture of hydrogen and carbon monoxide at a pressure between 2000 and 3500 p.s.i.g. and a temperature of 150-250 DEG  F. to convert substantially all the cobaltiferous material to cobalt carbonyl, and at least a part of the effluent from the first reaction zone is reacted in a second reaction zone with the olefin feed and a mixture of carbon monoxide and hydrogen at a temperature of 200-300 DEG  F. and a pressure between 300 and 750 p.s.i.g.  Suitable cobaltiferous materials are, for example, cobalt oxide, cobalt carbonate, cobalt basic formate and cobalt metal.
Patent GB-556951-A (GB)
Title: Improvements in or relating to the production of sheets of cellulose acetate or other organic substances
IPC: B29D7/01
Filed: 1942-04-25
Abstract: 556,951. Films &c. ; moulding plastic materials. MOSS, W. H. April 25, 1942, No. 5568. [Class 2 (ii)] [Also in Group V] A solution of an acetone-soluble film-forming polymer in a volatile solvent is applied to a smooth casting-surface formed by a non-elastic film-forming polymer which is a derivative of a polymerized diene and is insoluble in the solvent of the applied solution ; at least the bulk of the volatile solvent is evaporated, and the resulting sheet is stripped. The polymerized diene derivative may be chlorinated rubber, rubber hydrochloride, hydrogenated rubber, cyclorubber, or similar derivatives of polymerized isoprene, butadiene, or dimethyl butadiene. Chlorinated isoprene and omega-polychloroprene may be employed. Film-forming polymers which may be used as a basis for the sheets include cellulose acetate, propionate, butyrate, aceto-nitrate, and aceto-stearate, acetonesoluble cellulose ethers, polyvinyl acetate, and polymethyl methacrylate. Thick sheets may be obtained by casting one or more layers of the solution. The casting surface may be supported on a sheet of glass or metal. Thus a layer or layers of a solution of chlorinated rubber in ethylene dichloride or benzene may be deposited on a glass or metal plate, fitted with removable side walls. In an example, a large number of layers of a cellulose acetate solution are cast successively one on top of another, the.bottom layer being cast on a chlorinated rubber surface supported by a glass plate. The composite sheet is stripped from the chlorinated rubber. Instead of depositing the first layer of cellulose acetate dope directly on the chlorinated rubber surface, a preformed sheet of cellulose acetate may be laid flat on the chlorinated rubber surface and this sheet may be built up to the required thickness by the deposition of successive layers of cellulose acetate dope. The composite sheet including the first layer, which is formed, is stripped from the chlorinated rubber surface. The dopes may contain plasticizers, high boiling solvents, dyes, pigments, metallic powders. Sheets suitable for observation panels of aircraft, windshields, or windows for vehicles may be made. The process may be modified by dipping a plate of chlorinated rubber or the like, or a glass plate or other support coated on both sides with chlorinated rubber, into the film dope, e.g. a solution of cellulose acetate. The coating of cellulose acetate is dried and further coatings are formed by alternate dipping and drying steps. The composite sheets so formed are then stripped from the two chlorinated rubber surfaces. Specifications 533,788, 542,080 and 551,786 are referred to.
Patent GB-492751-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: B64C25/60
Filed: 1937-02-24
Abstract: 492,751. Shock absorbers. CLARK, G. M. (Soc. d'Inventions AÚronautiques et MÚcaniques S.I.A.M.) Feb. 24, 1937, No. 5583. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 25, 1937.] [Class 108 (iii)] An oleo-pneumatic shock-absorber, particularly for the undercarriages of aircraft, in which the cross-sectional area for the passage of the liquid is greater during the compression stroke than during the subsequent expansion stroke, includes an auxiliary arrangement which comes into operation under exceptional circumstances as a stress limiting device when the pressure in the system attains or exceeds a predetermined value and provides a supplementary passage for the liquid of the shock-absorber. During the compression stroke the piston 10 moving donwwardly in a cylinder 11 forces liquid through an opening 12 into a tube 14 and through valves 16 into the space 15 above the piston and in addition through a channel between the tube and a spring-loaded valve 17. During the subsequent expansion stroke, under the pressure of the air in the chamber, the valves 16 are closed and liquid passes from the space 15 through, a shannel 21 between the tube 14 and the valve 17 normally held in its closed position by a spring 18. If the pressure attains or exceeds a predetermined value during the compression stroke, the valve 17 is opened and provides an additional passage 20 for the flow of liquid. Specification 451,901 is referred to. The Specification as open to inspection under Sect. 91 includes an arrangement, Fig. 3 (Cancelled), in which a piston 1 carries a rod 3 of varying cross-section co-operating with a hole 4 in a plate 5 fixed in a cylinder 2. When the pressure in the chamber 9 becomes excessive, a spring-loaded relief valve 7 opens to provide an additional passage 6 for the flow of liquid. In a modified construction of the relief valve, a disc is normally held against the plate 5 by a spring mounted in a cylindrical member having a slot which is uncovered to a varying extent for the passage of liquid in accordance with the compression of the spring. This subject-matter does not appear in the Specification as accepted.
Patent GB-1459357-A (GB)
Title: Variable capacitor
IPC: H01G5/00
Filed: 1975-02-10
Abstract: 1459357 Variable capacitors STANDEX INTERNATIONAL CORP 10 Feb 1975 [11 Feb 1974] 5597/75 Heading H1M In a trimmer capacitor wherein variation in capacitance is effected by relative movement of the fixed and movable plates in a direction perpendicular to their planes, a plastics base 24 for the assembly has a hole 38 therethrough, a part 36 of which is screw threaded and is an interference fit with actuating screw 22 to provide a desired resistance to rotation. The length and diameter of part 36 may be selected to give a desired torque rating. As shown fixed plate 50 is threaded for engagement with screw 22 and is separated from annular movable plate 58 by insulating, e.g. mica, washer 54. Plate 58 in the minimum capacitance position is bowed, becoming flattened (Figs. 3, 4, not shown) in the maximum capacitance position. A further plate 76 may be provided, electrically connected to fixed plate 50 by a solder tag (Fig. 9, not shown) and separated from plate 58 by insulating washer 72. Compression washer 84 abuts the under surface of the screw head, and may be metallic or insulating depending on the presence or absence of plate 76. Leads 26, 28 have portions 26A, 28A for soldering the trimmer to a printed circuit board and portions 26B, 28B of greater width to function as heat sinks during soldering and to minimize capillary creeping of the solder. The leads pass through holes in the base 24, the holes providing a tight fit at the bottom of the base but having cut-away wells towards the interior forming receptacles for any solder which does enter base 24.
Patent GB-397551-A (GB)
Title: Improvements in electrical impedance networks and amplifiers
IPC: H04B3/14
Filed: 1932-02-26
Abstract: 397,551. Impedance networks. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. Feb. 26, 1932, No. 5830. Convention date, March 12, 1931. [Classes 40 (iii) and 40 (v).] In an impedance network or amplifying system for equalizing the attenuation or phasedisplacement of currents of different frequencies, the coils of a transformer shunted by a condenser are interposed between one or each leg of the line and an attenuating or retarding line or an amplifier, the characteristic impedance of the whole device being independent of frequency. The system has input terminals 1, 2 and output terminals 3, 4, and the terminals a, c of a quadripole A are connected in the middle of a tapped transformer whose coils L1, L2 are wound on a common core and shunted by a condenser C. The quadripole A may be an amplifier, a resistance network provided with tappings, Fig. 2 (not shown), a retardation line comprising shunt condensers and series inductances, Fig. 3 (not shown), or a combination of the two. The Specification gives the conditions which must be fulfilled in order that the overall characteristic impedance may be independent of frequency. The lower frequencies are attenuated or retarded by the quadripole but the higher frequencies pass mainly through the condenser.
Patent GB-139509-A (GB)
Title: Improvements in metal wheels
IPC: B60B1/10
Filed: 1920-02-26
Abstract: 139,509. Structural Pressed Steel Wire Co., (Assignees of Lachman, M.). July 12, 1916, [Convention date]. Disk wheels.-In metal wheels of the kind comprising disks having openings to form spokes integral with a continuous rim and centre, the edges of the rim 2 and spokes 4 around the openings 6 are bent into tubular form, as shown at 15. The outer periphery of the disk and the central opening 5 may be similarly formed. One or more of the disks may be used in the construction of a wheel.
Patent GB-851280-A (GB)
Title: A dynamo-electric machine high voltage winding coil
IPC: H02K3/34
Filed: 1959-02-20
Abstract: 851,280. Insulation for dynamo-electric machines. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 20, 1959 [Feb. 27, 1958], No. 5863/59. Class 35. In a dynamo-electric machine H.V. winding coil comprising one or a bundle of conductors having respective portions 4 and 2, 3 shaped to be disposed in one or more slots and beyond the ends of a core not shown of the machine, the slot and end portions are insulated by a mica tape wrapping 1 filled and bound with materials which in the slot portion or portions 4 consists of a solventless resin and in the end portions 2, 3 consists of silicone rubber. The mica tape consists of mica flakes either felted together or attached by a polyester resin to a tape-shaped backing of glass fibre, paper, asbestos, or thermoplastic film of polyamide or polyethylene-glycol terephthalate. Unvulcanised silicone rubber in the form of dimethylpolysiloxane is applied on the conductor bundle end portions 2, 3 only and to each layer of wrapping tape 1 at such end portions, and to the rubber is added a silicone organic curing catalyst which vulcanises at room temperature; alternatively a heat vulcanising rubber can be used. After vulcanising the coil is dried and impregnated with either a polyester or an epoxy resin such resin entering only the slot portion 4 and being prevented by the silicone rubber from penetrating the end portions 2, 3. The coil is then wrapped in nylon or polytetrafluoroethylene tape, placed in a mould, and the resin cured. After curing, the slot portions are rigid, while the end portions remain flexible.