baber/WOPTO huggingface dataset:
Patent GB-1163759-A (GB)
Title: Suction Box Cover
IPC: D21F1/52
Filed: 1966-11-08
Abstract: 1,163,759. Suction boxes. TEXAS INSTRUMENTS Inc. 8 Nov., 1966 [3 Dec., 1965], No. 50011/66 Heading D2A. [Also in Division Cl] In a paper making machine the suction box cover comprises a cast silicon substrate, coated with silicon carbide. The cover is prepared by casting a silicon black with appropriate perforations and coating it with silicon carbide. The SiC produced is preferably the beta form, has a hardness of 988-2900 on the Knoop Scale, and has a free carbon content no greater than 0.89% by weight and a free silicon content no greater than 36.5% by weight.
Patent GB-1385559-A (GB)
Title: Microfiche readers
IPC: G03B21/11
Filed: 1972-11-01
Abstract: 1385559 Optical projection apparatus REALIST Inc 1 Nov 1972 [20 March 1972]  50246/72 Heading G2J A film reader has a base portion 10 including a lamp 26 whose light is directed upwards by mirror 50 through a micro-fiche carrier (only edge 60 shown) to projection lens assembly 48. This projects an image on to screen 14 via mirrors 76, 78, 80, the mirrors 78, 80 being at right angles to each other. As shown the micro-fiche carrier includes two transparent plates between which the fiche may be placed for movement in the plane normal to the optical axis. The lens assembly 48 rests on the carrier to ensure consistent spacing, focusing movement of the lens 74 relative to the assembly being possible. The reader may have interchangeable lenses and the lamp housing 28 may be slidably mounted. The mirrors 78, 80 may be telescopically mounted to move as a unit relative to the rest of the upper housing 12 and several housings 12 having different screen shapes may be interchangeably mounted on the base portion 10. The lamp housing 28 can be fan cooled, hence the provision of louvres 96. The position of the fiche carrier relative to the assembly 74 can be indicated and moved manually by a pointer attached to the carrier and whose free end passes over a reference grid lying in a plane parallel to the fiche carrier.
Patent GB-1401437-A (GB)
Title: Ablutionary appliances
IPC: E03C1/04
Filed: 1971-10-29
Abstract: 1401437 Shower head WALKER GROSWELLER & CO LTD 19 Sept 1972 [29 Oct 1971] 50429/71 Heading B2F A shower nozzle has a spray head which is rotatable about its axis between two positions giving two different flow rates. The head 5 is rotatably mounted on the body 1 and has a bore 3 with an outlet 14 leading to the discharge chamber 16 in the head. Mounted in the body for rotation with the head 5 is a valve 13 having parts 17, 18 of different flow section which are bought into register with the outlet 14 as required. Outlets of different flow rates may be provided in the body and a single port in the valve. The axis of the spray discharge is at an angle to the axis of the spray head.
Patent GB-1390530-A (GB)
Title: Oligomerisation and co-oligomerisation catalysts
IPC: B01J31/18
Filed: 1972-11-02
Abstract: 1390530 Oligomerisation catalyst AKADEMIE DER WISSENSCHAFTEN DER DDR 2 Nov 1972 50487/72 Heading B1E [Also in Division C5] An oligomerisation catalyst comprises a thermally pretreated carrier which is a completely hydrated alumina or a partially dehydrated aluminium oxide or a hydroxidegroup containing alumina, e.g. bayerite, bohmite, hydrargillite or gamma-alumina, which has been reacted firstly with at least one halogen-containing organo-aluminium compound and, subsequently, impregnated with at least one divalent nickel and/or cobalt complex in which ligand atoms include, oxygen, nitrogen, phosphorus, arsenic and/or antimony, the reaction and subsequent impregnation been carried out at -50 to 150‹C. The catalyst may be regenerated after use in oligomerisation by (i) if there is only a small drop in activity, applying a small amount of a halogen-containing organo-aluminium compound to the catalyst, or by (ii) if there is substantial deactivation, firstly impregnating with the divalent nickel and/or cobalt complex and then impregnating with the halogencontaining organo-aluminium compound.
Patent GB-1499978-A (GB)
Title: Method of making multi-layer bearing strip
IPC: C23C24/10
Filed: 1973-10-31
Abstract: 1499978 Coating with metals by melting powdered metals GLACIER METAL CO Ltd 30 Jan 1975 [31 Oct 1973] 50628/73 Heading C7F A bearing strip e.g. steel coated with Cu-Pb, is formed by depositing the powdered metal on a moving strip, which may have been pre-heated by induction heating, melting the powder by induction heating and passing the strip through a further induction heating zone, which gives a reduced heating to allow the metal to cool slowly. The strip may be finally cooled with a water spray. The heating may be effected in nitrogen or other inert gas. The induction coils extend short of the edges of the strip, so that the metal at the edges is less viscous and does not fall off the edges of the strip.
Patent GB-1019434-A (GB)
Title: Aircraft
Inventor: WILDE GEOFFREY LIGHT
IPC: B64C29/00
Filed: 1964-12-11
Abstract: 1,019,434. Jet-propelled aircraft. ROLLSROYCE Ltd. Dec. 11, 1964, No. 50649/64. Heading B7G. [Also in Division F1] A gas turbine engine 18 has a plurality of compressor bleed air apertures 22 and is mounted in an aircraft in a housing 21 which forms part of a manifold 24 for the bleed air. As described, an aircraft has a forward propulsion jet engine 15 in its fuselage and a housing 14 on each side of the fuselage containing seven direct lift turbo-jet engines 18. Each engine 18 has annular abutments 25, one on each side of the apertures 22, which co-operate with inflatable tubes 26 in the housing to define with the engine easing wall 20, and a groove 23 in the housing, an annular manifold. The tubes 26 may be deflatable to form dump valves. The manifold is connected by an outlet duct 27 to stabilizing jet nozzles, air motors or other pneumatic equipment, and contains cascades of vanes 30 angled to provide a greater resistance to the flow from the apertures near the outlet 27, so that the airflow from the apertures is constant around the engine. Alternatively a perforated sleeve (Fig. 4, not shown) fixed to the housing may surround the engine, the sizes of the perforations being varied to achieve a uniform flow. The lip of the air intakes is inflatable and may be covered by doors 43.
Patent GB-1198828-A (GB)
Title: Process for Preparing Pyrryl-(2)-Acetonitriles
IPC: C07D207/337
Filed: 1967-11-13
Abstract: 1,198,828. Preparation of pyrryl-(2)-acetonitriles. RUTGERSWERKE A.G. 13 Nov., 1967 [3 Dec., 1966], No. 51443/67. Heading C2C. Pyrryl-(2)-acetonitriles of the formula wherein R 1  is hydrogen or C 1-4  alkyl, are obtained by alkylating a dialkyl-[pyrryl-(2)-methyl]- amine of the formula wherein R 2  and R 3  are C 1-4  alkyl groups in aqueous solution and subsequently reacting the resulting reaction mixture with an aqueous solution of an alkali cyanide at 40-100 C. in the presence of a water-immiscible solvent in which the nitrile product is soluble and then separating the solvent phase containing the product from the aqueous phase. Suitable alkylating agents are alkyl sulphates, alkyl halides and aralkyl halides and the solvent employed may be an aromatic or aliphatic hydrocarbon or halohydrocarbon.
Patent GB-1380879-A (GB)
Title: Pressure regulator with flow limiter
IPC: G05D16/16
Filed: 1973-11-09
Abstract: 1380879 Fluid-pressure servomotor systems VAPOR CORP 9 Nov 1973 [21 May 1973] 52188/73 Heading G3P A flow control valve comprises a body 10 having an inlet 11 and containing an axially slidable cylindrical throttling member 18 defining a variable opening 19 controlled by a pilot valve 42 in response to the pressure at the inlet 12 of a downstream Venturi 13 so as to maintain that pressure constant in normal circumstances. Should there be a loss in pressure downstream of the control valve, e.g. as a result of puncturing of an aircraft fuel tank supplied with engine bleed air via the valve, then a flow limiting pilot valve 58 responsive to the pressure differential between Venturi inlet 12 and throat 14 senses the resulting increase in flow and opens to over-ride pilot valve 42. Throttling member 18 thus reduces, rather than increases, the size of opening 19 causing a reduction in flow therethrough. The pilot valves 42, 58 position throttling member 18 by controlling the pressure in a chamber 27 to the right of a wall 23 connecting member 18 to a hub 20 slidable upon guide rod 21. Chamber 27 is vented via hole 38 in wall 23 to a chamber 31 on the left of the latter, the chamber 31 being at all times vented to atmosphere via passage 32 and containing a spring 35 biasing throttling member 18 to the open position. In the arrangement shown pilot valve 42 comprises a spring-loaded diaphragm 43 connected to valve member 48 throttling a port 49 communicating Venturi inlet pressure to chamber 27 via passages 45, 44, 50, 51 and 52. Whereas pilot valve 58 comprises a spring-loaded diaphragm 59 connected to a valve member 62 which opens a port 63 only during the pressure loss conditions described above to communicate Venturi inlet pressure to chamber 27 via passages 45, 61, 51 and 52. In a modification pilot valves 42, 58 may be operated by evacuated bellows. A shut-off valve 68 includes a solenoid operated valve member 69 co-operating selectively with seats 70, 71. In the seat 70 closed position shown, bleed air at upstream pressure is directed to another device via passages 73, 75, whereas when solenoid 68 is energized to close seat 71 upstream pressure is directed to chamber 27 via passages 73, 74, 51 and 52 causing throttling member 18 to close opening 19.
Patent GB-1172519-A (GB)
Title: Photographic Colour Origination Process for Photomechanical Colour Printing
Inventor: DENNIS RICHARD JOHN
IPC: G03F3/06
Filed: 1965-12-09
Abstract: 1,172,519. Photographic colour separation negatives and positives. R.J. DENNIS and R.J. WILSON. March 6, 1967 [Dec.9, 1965], No.52234/65. Heading G2C. A photographic colour origination process for use in photo-mechanical colour-printing comprises making a single separation negative from a coloured original without using separation filters by exposing to the original a multi-layer colour negative film in which on development at least one integral masking image is formed and making a set of separation positives on black-and-white film from said separation negative. Alternatively the coloured original may be recorded on a reversal colour film which forms integral masking images on development to form a colour positive and the latter used for making screen negatives directly by exposure through colour filters. The multi-layer colour negative film may be a conventional silver halide material having red, green and blue sensitive layers forming cyan, magenta and yellow images. The colour separation negative may be exposed through blue, green and red filters to form continuous separation positives or through said filters and a screen to form screen positives from which screen negatives may be prepared. Any enlargment desired may be effected between the original and the single separation colour negative.
Patent GB-1305122-A (GB)
IPC: C07C2/36
Filed: 1970-11-03
Abstract: 1305122 Olefin-nickel chelates SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 3 Nov 1970 [5 Nov 1969 (3)] 52261/70 Heading C2J [Also in Divisions C3 and C5] Organophosphorus chelates of olefin-nickel compounds are obtained by direct reaction of the chelating phosphorous compound containing a carboxymethyl or carboxyethyl group with the olefin-nickel compound. In examples, the following reactions are described: his - (1, 5- cyclooctadiene) nickel (0)/a mixture of 9-carboxy-methyl- or 9-(2-carboxyethyl)-9-phosphabicyclo [3.3.1] and [4.2.1] nonanes, or diphenyl carboxymethylphosphine, and #-crotyl nickel, #-allyl nickel bromide, or bis-cyclooctatetraene nickel (0)/diphenyl carboxymethylphosphine.
Patent GB-1400519-A (GB)
Title: Air purifier
IPC: F23G7/07
Filed: 1972-11-15
Abstract: 1400519 Electrostatic separators SHIMIZU KENSETSU KK and TOYO KUKI CHOWA KK 15 Nov 1972 [16 Nov 1971] 52684/72 Heading B2J [Also in Division A4] An air purifier comprises a housing 4 provided with inlets 6, 7, an outlet 3 and, a blower 5; a first filter 9, e.g. of synthetic or glass fibres and a metal screen, for removing coarse particles from the air passing through the housing; a second filter 10 in the form of an electrostatic precipitator; ultra violet lamps 13 for sterilising the air; a third filter 14 of metal, e.g. copper wool or aluminium foil, which is earthed to capture any charged dust particles which may leave the precipitator 10; a chemically active filter 15, e.g. of the ion-exchange or catalytic type; and a fifth filter 16 of activated carbon.
Patent GB-1468365-A (GB)
Title: Plut or closure
IPC: B65D51/14
Filed: 1973-11-14
Abstract: 1468365 Plugs UNITED CARR Ltd 13 Dec 1974 [14 Nov 1973] 52797/73 Heading F2H A plug for closing an aperture in a panel, e.g. a body panel of a vehicle, comprises a metal plate 11 and a plurality of separate metal legs 12-15, each leg having an attachment portion 19, 20, 21 which attaches each leg to the panel and a mounting portion 22 depending from the panel adjacent the periphery thereof, the legs being shaped so as to be snap-engageable through the aperture 27, wherein the legs are manufactured separately from the plate and subsequently attached thereto. A sealing ring 16 may be provided of synthetic plastics, e.g. a polythene copolymer, to form a seal, and the ring 16 softens on heating, e.g. during a paint drying process, so as to bond the plate 11 to the panel. Each leg 12-15 may be attached by an aperture 24 thereof engaging over a dimple in the plate 11, as shown, or (Figs. 6 and 7, not shown), the plate (31) may be provided with a continuous rib (32) which engages a dimple (35) and a groove (33) provided on a U-shaped leg attachment portion. The legs may also be attached by spot welding, riveting or by providing prongs thereon for gripping the plate. The plate 11 may be oval (as shown) or circular in which latter case three legs are preferably provided. The plate may be of mild steel and the legs of carbon steel.
Patent GB-1411836-A (GB)
Title: Fishermans tool
IPC: A01K95/02
Filed: 1973-11-14
Abstract: 1411836 Gripping tools; hand knives G B KLEIN 14 Nov 1973 [15 Nov 1972] 52800/73 Headings B4W and B4B A hand tool comprises an elongated handle having an elongated, resilient top plate member 10 a corresponding elongated resilient bottom plate member 11 spaced from and substantially parallel with the top plate member, and a back wall 12 interconnecting the rear side edges of the top and bottom plate members over first end portions thereof to hold the members apart with the opposite end portions of each plate member being cantilevered from the back wall, lever means 25 for flexing the cantilevered end portions of the members toward each other, and tool means arranged on the cantilevered end portion of each plate member to oppose and to move towards the tool means on the other plate member whenever the cantilevered end portions are flexed towards each other by the lever means, whereby the tool means co-operate and will act upon an object placed between them. The tool is described as a fisherman's tool and has terminal jaws 23 for closing the slit of a split shot 5 on to a line L, side cutting jaws 31, 32, e.g. for cutting a fishing line L (Fig. 6, not shown), and further side jaws 35, 36 adapted to crush and thereby spread monofilamentary line material adjacent to a knot tied in the line, the crushing and spreading serving to prevent the knot untying. The lever 25 is provided with a projecting wedge 29 which can be used in one disposition of the lever 25, as shown in Fig. 3, for opening the slit in a split shot. A variety of knife blades 13 may be pivotally accommodated between the plates 10, 11.
Patent GB-1415427-A (GB)
Title: Process for obtaining high-purity cyclopentene
IPC: C07C7/04
Filed: 1973-11-16
Abstract: 1415427 Purifying cyclopentene BAYER AG and ERDOLCHEMIE GmbH 16 Nov 1973 [17 Nov 1972] 53281/73 Heading C5E Cyclopentene is purified by distilling crude cyclopentene containing C 5  olefinic and diolefinic impurities to remove volatile components and subjecting the sump product which contains the cyclopentene to treatment with a macroporous cation exchanger in the H form. The exchanger is preferably styrene-divinylbenzene copolymer containing sulphonic acid groups. The product may be distilled in order to separate off impurities boiling at higher temperatures than cyclopentane, and/or washed with an alkali metal hydroxide solution which may contain up to 15 wt. per cent hydrazine hydrate to remove carbonyl compounds. Water may then be removed by an azeotropic distillation, pure cyclopentene being recovered as a side stream.
Patent GB-1136552-A (GB)
Title: A method of and apparatus for continuously annealing metal wires
IPC: C21D9/00
Filed: 1965-12-20
Abstract: 1,136,552. Annealing wire. GEOFFROY. DELORE, and GODDERIDGE & CIE. 20 Dec., 1965 [18 Dec., 1964], No. 53971/65. Heading H5H. [Also in Division C7] In a method and apparatus for annealing metal wire by direct resistance heating the wire is advanced over a number of rotary electrodes so that it is in contact with each over a small arc. Movement of the wire is effected by an input capstan upstream of the electrodes and by the final electrode which has a pair of pulleys associated with it, the final electrode and pulleys and the other electrodes being driven from the input capstan. Adjustable means, such as a pair of pulleys at least one of which is movable in relation to its associated electrode, are provided for maintaining the wire in contact with the intermediate electrodes over a small arc. As illustrated, wire 1 enters by input capstan 2 and passes over electrodes 3, 6 and final electrode 10, the zone between electrodes 3 and 6 forming a heating zone and that between electrodes 6 and 10, in which the wire is maintained in a protective atmosphere in tube 16, forming an annealing zone. The wire is then cooled during its passage through tube 18 through which coolant is circulated by pump 20. On the shaft of capstan 2 is mounted a pulley 25 (Fig. 2) which through a speed selector 28 drives pulley 31 mounted on the shaft of electrode 10. The latter is geared to pulleys 11 and 12, pulley 12 having on its shaft a further pulley 42 (Fig. 4, not shown) over which runs a belt driving electrodes 3 and 6. These are provided with coolant by pump 20 and have associated with them pulleys 4, 5 and 7, 8 respectively, these pulleys being grooved so that the position of the wire on the electrode may be adjusted to avoid localized wear.
Patent GB-1411295-A (GB)
Title: Process for the manufacture of mouldings impregnations coatings  and surface fillings from preparations which can be cured by uv  irradiation
IPC: C08F2/50
Filed: 1972-11-29
Abstract: 1411295 Laminated products BERGER JENSON & NICHOLSON Ltd 29 Nov 1972 [6 Dec 1971] 55152/72 Heading B5N [Also in Division C3] Laminates are prepared from glass fibre mats impregnated with compositions curable by U.V.- irradiation and comprising stabilized mixtures of an unsaturated polyester resin, copolymerizable monomeric compound, sensitizer, and metal compound as polymerization accelerator by curing by U.V.-irradiation after moulding, coating, impregnation or surface filling, a tin (II) compound being used as accelerator in combination with at least one naphthalenesulphonyl chloride of the formula as the sensitizer. The unsaturated polyester resins are obtained by polycondensation from α,#-unsaturated dicarboxylic acids and/or their anhydrides with polyhydric alcohols employed in molar excess. In Example 31 two glass fibre mats are successively laminated to a glass plate and may later be removed from the plate. In Example 33 two glass fibre mats are laminated successively to a form which has the shape of a cylinder cut diametrically in order, to produce a profile.
Patent GB-1072046-A (GB)
Title: Coating compositions
IPC: C09D157/04
Filed: 1963-11-07
Abstract: A coating or impregnating composition having a total solids content of at least 8% by weight comprises an aqueous medium having dispersed therein a water-insoluble addition polymer of monoethylenically unsaturated molecules, said polymer containing at least 1% by weight of units from monomer molecules containing basic nitrogen atoms; the aqueous medium also containing a dispersing agent and 2 to 50% by weight based on the weight of the polymer of a calcium compound and/or a magnesium compound. Long lists of suitable monomers are given.  Copolymers exemplified are: ethyl acrylate / methyl methacrylate / dimethylaminoethyl methacrylate; 2 - ethylhexyl acrylate / styrene / dimethylaminoethyl methacrylate; ethyl acrylate / vinyl acetate / 4-vinylpyridine; n - butyl acrylate / methyl methacrylate / b  - aminoethyl vinyl ether; vinylidene chloride/ethyl acrylate/vinyltoluene/N - (dibutylaminoethyl) - methacrylamide; methyl acrylate / methyl methacrylate/vinyltolune / b  - dimethylaminoethyl vinyl sulphide; ethyl acrylate / acrylonitrile / methyl methacrylate / t. - butylaminoethyl methacrylate; and a blend of the copolymers ethyl acrylate/ethyl methacrylate / 2 - methyl-5-vinylpyridine and butyl acrylate/methyl methacrylate/2-vinylpyridine. Calcium and magnesium compounds exemplified are calcium chloride, acetate and hydroxide, and magnesium chloride.  In one example, the first copolymer listed above, prepared by conventional emulsion polymerization using octyl phenol modified with 40 ethylene oxide units, is diluted with water, calcium chloride is added and the mixture is coated on to a piece of cold rolled steel at 65 DEG  C. and the water is flashed off.  In the other examples, the polymer emulsions are blended with either polyethylene wax or carnauba wax, together with oleic acid, morpholine, plasticizers and surface active agents to form floor polishes to which the calcium and magnesium compounds are added and the final compositions are applied to rubber and asphalt floor tiles. Many other surfaces, to which the compositions may be applied, are specified. Conventional dyes, pigments and fillers may be incorporated in the compositions.ALSO:A coating or impregnating composition having a total solids content of at least 8% by weight comprises an aqueous emulsion containing a water-insoluble addition polymer of monoethylenically unsaturated molecules, said polymer containing at least 1% by weight of units from monomer molecules containing basic nitrogen atoms; the aqueous medium also containing a dispersing agent and 2% to 50% by weight based on the weight of the polymer of a calcium compound and/or a magnesium compound. Example 4, and acrylate-styrenemethacrylate polymer is blended with carnauba wax, together with oleic acid, morpholine, plasticizers and surface active agents to form a floor polish to which the calcium and magnesium compounds are added.  Conventional dyes, pigments and fillers may be incorporated in the compositions.