baber/WOPTO huggingface dataset:
Patent GB-955516-A (GB)
Title: Improvements in or relating to the preparation of dimethyl terephthalate
IPC: C07C69/82
Filed: 1961-12-21
Abstract: Purified dimethyl terephthalate is made by selectively reducing any aldehyde(s) present as impurity in crude dimethyl terephthalate or in the reaction mixture in which said dimethyl terephthalate is formed by hydrogenating the aldehyde(s) in the presence of a copper-chromium oxide or Raney copper catalyst, and rectifying the resulting reaction mixture to isolate the desired purified dimethyl terephthalate.  The catalytic hydrogenation may be carried out after the formation of the crude dimethyl terephthalate or during its formation by esterification of terephthalic acid with methanol. The hydrogenation may take place under pressure at a temperature in the range from 150 DEG  to 250 DEG C.ALSO:As catalyst for the selective hydrogenation of aldehyde impurities in dimethyl terephthalate, Example (1) describes the preparation of a copper-chromium oxide containing barium oxide, and in Example (5) Raney copper is made by treating Devarda's alloy (Al 50%, Cu 45%, Zn 5%) with sodium hydroxide solution.
Patent GB-1279606-A (GB)
Title: Improvements in or relating to filter thickeners
Inventor: BROCINER RONALD ERIC
IPC: B01D29/15
Filed: 1968-09-27
Abstract: 1279606 Filter thickeners ENGLISH CLAYS LOVERING POCHIN & CO Ltd 22 Sept 1969 [27 Sept 1968] 46159/68 Heading BID A filter thickener comprises a tank enclosing a plurality of inward-flow flat filter elements operating in parallel and comprising nylon or polyethylene terephthalate, woven cloth bags internally supported by pervious packing which fills their internal volumes. The filter element in Fig. 3 is made by folding a single piece of filter cloth, stitching the two halves together up the sides, turning the resulting bag inside out and inserting perforated filtrate pipe 85 through gaps in the stitching adjacent the fold. The cloth is separated from the pipe by a similarly folded packing sheet of woven, splitfilm polypropylene fabric, and the ends of the cloth are tucked between the ends of the fabric and stitched in place at 94. Rows of stitching 88 extend through the cloth and fabric to prevent excess bowing of the cloth during backwashing. Figs. 1, 2 (not shown) illustrate similar flat filter elements with different filtrate outlet connections and made from two sheets of filter cloth separated by a single packing layer of fabric. Fig. 5 shows a filter thickener with an open tank 103 and flat filter elements 101 supported by floats 102 and chains 105 which prevent the elements descending to contact rotary rake 104. Pump 108 is driven by a reversible electric motor controlled by a timer, and alternately pumps filtrate from elements 101 to overflow tank 110 and returns filtrate to the elements to backwash them for specified periods. The tank in Fig. 6 (not shown) has a rotary mixer (204), and pump (208) delivers filtrate to an overhead vessel (210) from which some is returned to backwash the elements (201) when valves (221, 222) are appropriately adjusted. In Fig. 7 (not shown) liquid is supplied to closed filter tank (303) under a considerable head of pressure and no pumps are needed, an overhead filtrate tank (310) and valves (316, 321, 322) enabling the elements (301) to be backwashed. Packings may be made of other plastics than those above, and elements may be stitched to divide their areas into annular sections rather than strips as in Fig. 3.
Patent GB-1131454-A (GB)
Title: Camera lens mechanism
IPC: G03B3/02
Filed: 1965-11-02
Abstract: 1,131,454. Camera lens mechanism. N. F. SEROV, I.S. BATJUTA, L.E. KORCHNOI, V.V. KUZMIN and A. F. VINOGRADOV. Nov.2, 1965, No.46282/65. Heading G2J. A camera lens mechanism includes a lens mount 1 for supporting a lens system 2 and located inside a lens barrel 5 which is in screw-threaded connection with focus adjustment means 11, means 9 for preventing the mount 1 from rotating relative to the barrel 5, the mount 1 and the barrel 5 having differential screw-threads 6, 7, an adjustment member 8 mounted between the mount 1 and barrel 5 to engage both screw-threads so that by rotating the member 8 the mount 1 will move axially of the barrel 5, and lock means 10 for holding the mount 1 in the selected axial position within the barrel 5. A protective ring 17 is screwed into a front extension of the barrel 5 to cover the adjustment member 8. The lock means 10 comprises a plurality of set screws. A diaphragm 3 is controlled by a crown ring 4 which is operated by suitable mechanism within the camera body when the lens assembly is screwed thereto.
Patent GB-1395243-A (GB)
Title: Process for preparing piperidine derivatives
IPC: C07D211/64
Filed: 1972-10-09
Abstract: 1395243 Piperidine derivatives SUMITOMO CHEMICAL CO Ltd 9 Oct 1972 [16 Oct 1971 (2)] 46434/72 Heading C2C Piperidine derivatives of general Formula I in which R<SP>1</SP> is hydroxy, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, C 2 -C 5  alkanoyl, C 2 -C 5  alkanoyloxy, carboxy, C 2 -C 5  alkoxy-carbonyl, carbamoyl, N-(C 1 -C 3  alkyl)carbamoyl, N-di-(C 1 -C 3  alkyl) carbamoyl, N-(C 2 -C 5  alkamoyl)aminoethyl or a N-(C 1 -C 4  alkoxycarbonyl)aminoethyl group; R<SP>2</SP> and R<SP>3</SP> are optional substituents and are hydroxy, C 1 -C 4  alkyl or alkoxy, a halogen atom or a trifluoromethyl group; R<SP>4</SP> is an optional substituent and is halogen, nitro or C 2 -C 5  alkylamoyl amino, and R<SP>5</SP> is halogen are prepared by decomposing a quaternary piperidinium salt of Formula II in which R is methyl, ethyl, isopropyl, isobutyl, benzyl, naphthylmethyl, phenethyl or naphthethyl (in which the phenyl or naphthyl nucleus may be substituted by alkyl, alkoxy or nitro or halogen), X is a halogen atom, Z is oxygen or ethylenedioxy; the decomposition being effected by treating the piperidinium salt in the presence of a base, or when R is a benzyl or substituted benzyl group by hydrogenation; when Z is an ethylenedioxy group by hydrolysis of the resulting metal compound I<SP>1</SP> The quaternary piperidium salt used as starting material may be prepared by reacting a piperidine of Formula (III) with a halide of Formula (IV) The products of Formula (I) have useful therapeutic properties.
Patent GB-1147059-A (GB)
Title: Bourdon tube gauges
IPC: G01L7/04
Filed: 1966-10-19
Abstract: 1,147,059. Pressure gauges. STEWART-WARNER CORP. Oct. 19, 1966 [Oct. 21, 1965], No.46769/66. Heading G1L. In a pressure indicating device a coiled Bourdon helically coiled tube 72 contained in a closed chamber formed by members 54, 56 is attached at one end to the wall of the chamber member 54 and at the other end carries a bar magnet 86 the free end of which moves in a slot in the end-wall of the chamber member 56 and the arrangement is such that the tube 72 is deflected, when subjected externally to a pressure through a restricted passage 66, to move the end of the magnet 86 in the slot to cause rotation of a disc magnet 24 mounted on a spindle 114 and frictionally attached to a pointer 26. The bracket 112 carrying the pointer 26 is slidably mounted to enable the range of movement of the pointer 26 to be adjusted.
Patent GB-1166735-A (GB)
Title: Enhancement of Resistance of Olefin Polymers to Heat Deterioration
Inventor: BRAUS HARRY
IPC: C08K5/524
Filed: 1967-10-13
Abstract: 1,166,735. Stabilizing olefin polymers. NATIONAL DISTILLERS & CHEMICAL CORP. 13 Oct., 1967, No. 46914/67. Heading C3P. Olefin polymers are stabilized with a stabilizer composition comprising a (1) hydrocarbonmercaptohydrocarbon phosphite containing 1 to 30 carbon atoms in each hydrocarbon group, and (2) carbon black. The polymer may be a polymer or copolymer of ethylene, propylene, butene - 1, pentene - 1, 3 - methylbutene - 1, 4-methylpentene-1 or styrene. Preferably the compositions also comprise a hindered phenol antioxidant. Many suitable phosphites and phenols are listed and examples describe the stabilization of polyethylene with carbon black and tri - (# - laurylthioethyl) phosphite, tri - (4 - t. - butylphenylthioethyl) phosphite, tri - (2 - methyl - 4 - t. - butylphenylthioethyl) phosphite, tri - (phenylthioethyl) phosphite, tri - (iso-octylthiobutyl) phosphite, mono-(phenylthioethyl)- di - (2 - ethylhexylthioethyl) phosphite, di - (cyclohexylthiomethyl) phosphite, mono - #-  laurylthioethyl phosphite, di - (methoxythioethyl) phosphite and tri - (phenylthiononyl)- phosphite, optionally together with 4,41-methylene bis- (6-t.-butyl-o-cresol), 2,21-methylene-bis- (6 t. - butylphenol), 3,5 - di - t. - butyl - 4 - hydroxybenzyl ether, 2-ethyl-4-octyl-6-methyl resorcinol, 1,3,5 - trimethyl - 2,4,6 - tris - (3,5 - di - t. - butyl - 4 - hydroxybenzyl) benzene, 4,4<SP>1</SP>- cyclohexylidene bis - (2,6 - di - t. - butylphenol), 2,2<SP>1</SP> - methylene bis - (4 - ethyl - 6 - t. - butylphenol), 4,4<SP>1 </SP>- methylene bis - (2,6 - di - t. - butylphenol) and 4,4<SP>1</SP>-n-butylidene bis - (2 - t. - butyl - 6 - methylphenol).
Patent GB-1044969-A (GB)
Title: Improvements relating to combine harvesters
IPC: A01D41/12
Filed: 1963-11-28
Abstract: 1,044,969. Combine-harvesters. MASSEY-FERGUSON Inc. Nov. 28, 1963 [Nov. 29, 1962 (2); Nov. 30, 1962], No. 47005/63. Heading A1F. A combine-harvester includes a body 11 enclosing mechanisms for cleaning and separating grain (not shown), a grain tank 20, 21 on each side of the body, grain-conveying means 24, 26, 27 extending between the mechanisms and the grain-tanks and grain-transferring means 50 passing over the body and interconnecting the tanks. The grain-conveying means comprises an auger 24, extending across the base of the body, and feeding an endless conveyer 26 which delivers grain into a transverse conveyer 27 consisting of a horizontal auger 32 in a tube 33 with two outlets, one, 34, above the tank 21 and the other, covered by an adjustable door, above the tank 20. Adjustment of the door (Fig. 3, not shown), by a lever 36 accessible to an operator, can vary the loading between the tanks. For emptying the tanks, a discharge auger 42 is provided, the grain from tank 20 being transferred to tank 21 by the auger 50 extending up the gabled roof 23 of the body. In Fig. 5, the transferring means consists of a vertical auger 86 feeding into the transverse conveyer 27, the adjustable opening 77 above the tank 20 being completely closed during transfer of grain. In Fig. 7, the transferring means again comprises a vertical auger 106 but this auger discharges directly into the tank 21 via a shoot 110 extending along the roof 23 of the body.
Patent GB-1074573-A (GB)
Title: Improvements in or relating to cellular material
Inventor: PARKER ROBERT SYDNEY RICHARD
IPC: C08J9/00
Filed: 1962-12-13
Abstract: A rigid or semi-rigid cellular material is produced from a mixture comprising a polymer or copolymer of vinyl chloride, a polyisocyanate, a blowing agent, an unsaturated ester and an unsaturated anhydride which is copolymerizable with the other reactants, by heating the mixture in a mould under pressure to form a partially expanded material, cooling the mould under pressure, removing the partially expanded material and finally completing the expansion by heating the material in the presence of water or water vapour.  Pressures from 3 to 7 tons per square inch are used. Polyisocyanates specified are p-p1-p11 triisocyanate of triphenyl methane, p-p1-diphenyl methane diisocyanate, toluene 2-4-diisocyanate, toluene 2-6 diisocyanate.  Blowing agents, which are used in amounts from 5% to 40% by weight of the initial mixture, mentioned are azodiisobutyrodinitrile, asodiisobutyric amide oxime; azidicarbonamide; p,p1 - oxybis (benzene sulphonyl hydrazide); benzene sulphonyl hydrazine; benzil hydrazones; tertiary butyl-amine; nitrite; N:N1-dinitroso-ethylene urea; N:N1 - dinitroso - N:N1 - dimethylterephthalamide; N:N1 - dinitrosopentamethylene tetramine; urea oxalate; amino-guanidine bicarbonate and nitrourea. Fuorocarbons may also be used. Anhydrides specified are maleic anhydride, itaconic anhydride, acrylic anhydride, citraconic anhydride and mixtures of these. Unsaturated esters are preferably liquid and are used in quantities of 2% to 30% by weight of the initial mixture.  Those specified are methyl, n-butyl, isopropyl, n-hexyl and benzyl esters of methacrylic acid; esters of methacrylic acid and diols, triols and polyols such as dimethacrylate esters of ethylene glycol, triethylene glycol, 1:3 propane diol or 1:3 butane diol, penta erythritol and alkyl or aryl esters of unsaturated organic acids such as butyl maleates, fumarates or itaconates; esters of acrylic acid particularly the mono- and di-esters such as the ethyl, butyl, ethylhexyl esters and those formed from ethylene glycol and 1:3 butane diol.
Patent GB-1422816-A (GB)
Title: Motor car steering arrangement
IPC: B62D1/19
Filed: 1973-10-09
Abstract: 1422816 Collapsible steering columns DAIMLER-BENZ AG 9 Oct 1973 [11 Oct 1972] 47100/73 Heading B7H A collapsible vehicle steering column includes a shaft portion 1 connected via a plastically deformable member 2 to a steering wheel 3, the resistance to deformation of the wheel 3 being greater than that of the deformable member 2 and the. shaft portion being at substantially 15 degrees to the horizontal. Shaft portion 1 is connected by a universal joint 5 to. a further shaft portion. 6 which is joined by a further joint 7 to a steering gear for the wheels. The geometry of this. arrangement is such that on frontal collision of a vehicle in which the column is mounted the shaft portion 1 is moved angularly towards the horizontal from its normal mounting position.
Patent GB-473250-A (GB)
Abstract: 473,250. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. April 23, 1937, No. 11694. Convention date, April 25, 1936. [Class 38 (ii)] [Also in Group XXVII] In an inverter system in which a low voltage source 10 of direct current connected to the mid-point 33 of a reactor 16 provides an alternating current at the ends of the reactor through the medium of a commutator switch 13 comprising slip rings 17, 18 and commutator segments 20, 22 ... and 21, 23 ... , the commutator brush is wide enough to bridge adjacent segments to permit a condenser 44, across the ends of the reactor 16, to oppose the battery current about to be broken by the commutator, a short circuit of the condenser through the slip rings and commutator segments direct being prevented by copper oxide &c. rectifiers 36, 37 in the leads between the ends of the reactor 16 and the slip rings 17, 18.
Patent GB-1158285-A (GB)
Title: Method and Apparatus for the Production of a Candle Material Granulate.
Inventor: BARFRED NIELS GEORG
IPC: C11C5/02
Filed: 1966-10-21
Abstract: 1,158,285. Granulating candle material. N. G. BARFRED. 17 Oct., 1967 [21 Oct., 1966], No. 47329/66. Heading B5A. A candle material granulate composed mainly of paraffin wax and stearin is made by melting a mixture of the components, stirring to homogenize the melted mixture, transferring the material to a moving cooled surface spaced from a similar surface by a distance corresponding to one dimension of the granulate, passing the material through the gap to solidify it and granulating. The cooling may be carried out between parallel metal belts, but is preferably carried out on rollers as shown. The three rollers 5, 6, 7 are internally cooled to successively lower temperature by water flowing along their axes and are driven in alternate directions with peripheral speeds increasing from roller 5 to 6 to 7. The roll gap can be adjusted by handles 9, 10. Molten wax is picked up from bath 16 by roller 5 and becomes cooled on the surface adjacent the roller. The wax is shaped in the gap between the rollers 5 and 6 and passes around rollers 6 and 7. As a result of the different roller speeds and cooling on alternate sides of the wax layer, the material is granulated and is scraped off from roll 7 by doctor blade 19. The granulate is preferably fed immediately to an extruder and is extruded around a wick to form candles.
Patent GB-1236245-A (GB)
Title: File construction
Inventor: SELDEN LEONARD MARVIN
IPC: A47B63/00
Filed: 1968-10-07
Abstract: 1,236,245. Filing papers. L. M. SELDEN. 7 Oct., 1968 [5 Oct., 1967], No. 47412/68. Heading B6E. A filing appliance comprises a plurality of mounting arms 9 projecting radially from a central support 4, each arm 9 carrying a housing unit, adjacent housing units being connected together as by hinges 24, 25. The support 4 may be rotatably mounted on a vertical shaft 2. Each housing is adapted to receive a tray unit 26 which is swingable about hinge pins 31 from a vertical position within its associated housing unit to a horizontal position for access to its contents. A resilient rod 36 is provided to hold the tray in the horizontal position, the rod being flexible by means of a push-rod 37 to permit the tray to return to its vertical position. Each tray has pivoted thereto as at 42 a pair of retaining members 40 each comprising a flange 43 which partially covers the open side of the tray when the tray is in the vertical position, but which is urged by a spring 44 to uncover the open side when the tray is in the horizontal position. The number of interconnected housing units around a support 4 may be four as shown, or by modification of the support may be three, five or six. Further housing units may be mounted on a single shaft 2, either independently rotatable or attached to one another.
Patent GB-1485678-A (GB)
Title: Barrels
IPC: B65D8/10
Filed: 1975-11-19
Abstract: 1485678 Thermally insulated containers SEMPERIT AG 19 Nov 1975 [21 Nov 1974] 47580/75 Heading F4U [Also in Divisions B5 and B8] A barrel comprises a metal, e.g. steel, vessel 1 provided with an in situ moulded protective heat insulating and noise-deadening casing 2 of semi-rigid polyurethane integral foam having a density of 0À1 to 0À9 gm./cm.<SP>3</SP>, an elongation to rupture of 10 to 300%, and a Shore hardness of between 80 degrees Shore A and 70 degrees Shore D. Preferably, the density is between 0À4 to 0À5 gm./cm.<SP>3</SP>, the elongation to rupture between 50 to 100%, and the Shore hardness between 95 to 98 degrees Shore A. The vessel is degreased, heated to 50‹ C. before and/or after placing in a mould, and then provided with the casing by injecting or pouring the foamable constituents into the mould. The vessel may be filled with compressed air to support it during moulding of the casing. Specific examples of various polyurethane foam-forming mixtures are disclosed. The vessel may be formed of nickel - chromium, nickel - chromium - molybdenum, or nickel - chromiummolybdenum-titanium sheet steel having a thickness of 1 mm., and the foamed casing may have a thickness of between 3 and 4 mm.
Patent GB-980105-A (GB)
Title: Phenylvinylpolysiloxanes
IPC: C07F7/21
Filed: 1962-12-18
Abstract: The invention comprises compounds of the formula <FORM:0980105/C3/1> where n is 0 or 1.  They are prepared by the reaction of tetraphenyldisiloxane diol-1,3 or hexaphenyltrisiloxane diol-1-5 with a methyl vinyl dihalosilane, in the presence of a hydrogen halide acceptor, e.g. a tertiary amine, in particular pyridine. The reagents are dissolved in an inert solvent, e.g. tetrahydrofuran, n-hexane, xylene, ether or toluene.  The hydrohalide precipitate is removed, then the solvent, and the product is recrystallized.  Polymers containing recurrent units <FORM:0980105/C3/2> where n is 0 or 1, are prepared from the compounds (I) by heating them alone at 250-350 DEG C., or, preferably, with a catalyst at 135-170 DEG  C.  A suitable catalyst is a 0.01-1% dispersion of KOH in octamethylcyclotetrasiloxane, amounting to 10-100 p.p.m. of KOH in monomer.  The polymers are clear gums, soluble in benzene or toluene, of MW of 10,000 to 5,000,000.  Copolymers can be made in a similar manner from the compounds (I) with themselves or other cyclic polysiloxanes such as those of Specifications 978,101, 978,102, 978,103, 978,104, 978,106, 978,107, 978,108 and 978,109.  Both homopolymers and copolymers containing units (II) can be cured by conventional means, e.g. by free radical (peroxide) curing agents, or by irradiation, e.g. with 50,000 to 20,000,000 eV electrons. Fillers may be added before cure, if desired, and may suitably be silica (aerogel, fumed, precipitated), TiO2, Fe2O3, Cr2O3, CaCO3, CaSiO3, CdS, lithopone, carbon black, talc, asbestos, glass fibres.  The examples describe the preparation and polymerization, and cure with benzoyl peroxide, of both of the compounds (I), and the preparation of a copolymer of the trisiloxane (I) with hexaphenylcyclotrisiloxane.
Patent GB-1435211-A (GB)
Title: Knob assembly for mounting on a panel in an aperture in the  panel
IPC: A47B95/02
Filed: 1973-10-11
Abstract: 1435211 Knob assemblies PLESSEY CO Ltd 2 Sept 1974 [11 Oct 1973] 47655/73 Heading A4V A knob assembly for mounting on a panel 15 comprises a knob 10 having a stem (11) for extending through an aperture (14) in the panel, the stem having a transverse aperture (13) extending through it, and a member having a laterally compressible limb 18 for engaging in the aperture in the stem. A stud 16 on the knob engages an aperture (17) in the panel to prevent rotation of the knob. A detent 20 and an arcuate rib 21 on the limb 18 releasably retain the limb in the aperture in the stem. The panel may form part of a door or a cover (26), Figs. 6 and 7 (not shown) e.g. for a telephone equipment rack, the cover having a magnetic strip (29) round its inside lip for retaining the cover over an equipment compartment. The cover carries knob assemblies and each has an inverted-V formation 23 attached to its compressible limb 18 adapted, when required, to fit over and behind the knob of a knob assembly on a similar cover.
Patent GB-1530316-A (GB)
Title: Panel assembly joint
IPC: A47F3/12
Filed: 1975-11-20
Abstract: 1530316 Panel assembly joint M BENAGLIA 20 Nov 1975 47722/75 Heading F2M A panel assembly joint comprises two multiarmed elements 1 and 2 and a screw or bolt 3. The arms of the element 2 engage in grooves 9 in the panels 8 to be assembled and the element 1, provided with jaws 5, engages with shoulders 10 in the panels, and is secured by means of bolt 3 which is threaded into the hole that passes part way through the centre of element 2. For disassembling an extractor 11 is provided (Fig. 8) which is screwed into a thread tapped part way through element 1 after bolt 3 is removed, the shank bearing against the base of the threaded hole in element 2 and prising the two elements apart.