baber/WOPTO huggingface dataset:
Patent GB-1309318-A (GB)
Title: Metal clad laminates
IPC: H05K3/38
Filed: 1970-08-03
Abstract: 1309318 Metal-clad laminates UNIVERSAL OIL PRODUCTS CO 3 Aug 1970 [13 Aug 1969] 37370/70 Heading B5N In the manufacture of a metal-clad laminate by bonding a sheet of resin-impregnated fibrous material by heat and pressure to a metal sheet, an assembly consisting of at least one sheet of resin impregnated fibrous material and a thin metal sheet, e.g. a copper sheet of thickness about 0À03 mm., is prepared, with a thin film of thermoplastic polymeric material placed between the fibrous material and the thin metal sheet, and the assembly is subjected to heat and pressure. The fibrous material may comprise glass cloth, canvas, linen, cotton or nylon fabric, paper or cardboard and the impregnating resin is preferably an epoxy resin. The film of thermoplastic polymeric material suitably comprises an ionic polymeric material such as an olefine/ethylenic carboxylic acid copolymer in which the acid groups are at least partly neutralized by alkali-metal ions, such as an ethylene/α,#-methacrylic acid copolymer neutralized with sodium hydroxide. Other suitable thermoplastic polymers include polyesters, polyethers and polyurethanes.
Patent GB-523177-A (GB)
Title: Improvements in and relating to windshield cleaners
IPC: B60S1/38
Filed: 1938-12-28
Abstract: 523,177. Windscreen wipers. TRICO PRODUCTS CORPORATION. Dec. 28, 1938, No. 37602. Convention date, Jan. 4. [Class 138 (i)] The actuating arm of a windscreen wiper is curved at its end and engages a correspondingly curved transverse wall 28 of a U-shaped clip riveted to the wiper. The parts are assembled by an arcuate sliding movement of one on the other, and are pressed together by a leaf spring 26. The end 15 of the arm is reduced in width at the ends of the wall 28 to allow the wiper to rock in the plane of the windscreen. The spring 26 allows rock about the actuating arm.
Patent GB-1337025-A (GB)
Title: Cage for breeding and or storing shellfish
IPC: A01K61/00
Filed: 1971-08-11
Abstract: 1337025 Shellfish breeding cage L N HALAUNBRENNER 11 Aug 1971 [12 Aug 1970] 37682/71 Heading A1A [Also in Division C3] The breeding or storage cage for shellfish consists of a central cylindrical float 1 defined by a lateral envelope 2 and two bases 3 and 4, each carrying two rings 5 and 6 respectively, each attached to the corresponding base by ribs 7 and 8 such that annular baskets 11, 12, 13, 14 may be held at a depth of water determined by the length of cable 30 attached to the ring 5 and a sinker 29 on the seabed. Each basket has cylindrical internal and external walls 16, 17, the baskets being interconnected by radial partitions 23 and a circular base 15, Walls 16, 17 have flanges 18, 19 respectively in order to provide means of support for the basket immediately above. Annular top cover 20 is fixed by a bolt 21 located in an opening 22 in rib 7 and the float 1 is made of two parts interconnected by intermediate component 10.  In another embodiment, the cage comprises an upper annular peripheral float below which at least one annular receptacle is located about a rod 35. A further embodiment provides annular floats adjacent to or above and below each basket. Another embodiment provides an annular float which surrounds a basket, the float being attached by means of a cheekplate located on a rod and fixed by a collar.  Compartments, provided in another embodiment, contain curved spat collectors which aid brood removal. The baskets may be given buoyancy by having circular sector floats of similar shape to the spat pots in the compartments. The baskets may be injection moulded and made from a polymer containing .01%-50% weight of copper, iron or manganese in metallic or chemical compound form to improve the oyster breeding, the baskets containing in at least certain of their surfaces, openings to allow passage of water but not of shellfish or their natural predators. A rope, attached to a marker buoy, may be used to lift the cages.
Patent GB-1458132-A (GB)
Title: Purification of nitric acid
IPC: C01B21/46
Filed: 1974-08-29
Abstract: 1458132 Purifying nitric acid UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 29 Aug 1974 [17 Sept 1973] 37715/74 Heading C1A Nitric acid contaminated with fluoride ions, e.g. from nuclear fuel processing or uranium refining, is purified by boiling a solution containing the contaminated acid and at least 6 moles of aluminium nitrate for every mole of fluoride whereby the aluminium reacts with the fluoride impurities to form a non-distillable aluminium fluoride complex and nitric acid vapour which is given off and condensed. The solution preferably contains 4 to 6 moles of calcium for every mole of aluminium. Aluminium nitrate and calcium nitrate are the preferred sources of the ions and the calcium may be partially or wholly replaced by zinc or lanthanum nitrate. Oxygen or air is preferably bubbled through the boiling solution to assist the distillation.
Patent GB-792041-A (GB)
Title: A method for making pressure-sensitive, unsupported organosilicon rubber tape
IPC: C09J7/10
Filed: 1956-12-12
Abstract: A pressure-sensitive unsupported silicone rubber tape is made by heating a sheet of raw, unvulcanized silicone rubber on one side at a temperature of from 160 DEG  to 220 DEG  C. for 5 to 30 seconds while simultaneously cooling the opposite side of the sheet to below 40 DEG C.  The process which may be continuous or discontinuous, may be effected (a) by placing the raw silicone rubber sheet on a hot surface and surface of the sheet; (b) by placing the sheet on a cold surface and blowing hot gases across the opposite surface of the sheet; or (c) preferably by passing an extruded sheet of raw silicone rubber in contact with a slip sheet of interweaving material, e.g. polyethylene, round the cylindrical surface of a heated revolving drum, one face of the silicone rubber sheet being in contact with the drum while the slip sheet is in contact with a liquid cooled shoe; the partially vulcanized rubber and interleaving material may then be rolled up and cut into the desired width for tapes.  Alternatively, (d) instead of a drum and shoe, a heated plate and a cooled table respectively may be used.  The raw silicone rubber preferably contains a peroxide vulcanizing agent, e.g. benzoyl peroxide, tertiary butyl perbenzoate, dicumylperoxide, tertiary butyl peracetate, isopropylbenzene hydroperoxide, acetylperoxide and any peroxide described in Specification 608,956.  In examples, tapes were made (1, 2) from a raw silicone rubber sheet composed of dimethylpolysiloxane gum, fume silica and 2,4,21,41-tetrachlorobenzoyl peroxide by processes (d) and (c) respectively; process (d) was also used to make tapes using respectively a copolymer of 90 mol. per cent of dimethylsiloxane and 10 mol. per cent of phenylmethylsiloxane, a trifluoropropylmethylsiloxane, and a copolymer of 89 mol. per cent of dimethylsiloxane, 1 mol. per cent of methylvinylsiloxane and 10 mol. per cent of diphenylsiloxane.
Patent GB-1187594-A (GB)
Title: Display Devices
Inventor: SIMPSON ANTHONY WILLIAM
IPC: G02F1/09
Filed: 1966-08-24
Abstract: 1,187,594. Light modulators. NATIONAL RESEARCH DEVELOPMENT CORP. 10 Aug., 1967 [24 Aug., 1966], No. 38028/66. Heading H4F. [Also in Division G5] An array of light modulators comprises a matrix of elements 8 exhibiting the Faraday effect, having two distinct states of magnetic remanence, and each forming at least part of a closed magnetic loop. They are placed between a polarized e.m. radiation source 1 and a polarizing screen 6, and are switched by the application of current to conductors. As described, the conductors X ... and Y ... are in a crossed-type configuration. Elements 8 are of square loop shape, all but the light-transmitting zones being silvered, and are of YIG or GIG or mixtures thereof. A mask 4 and a wavelength converter 7 may be provided. Half-tone (" grey ") transmission is obtained by switching to an intermediate state of remanence by short current pulses.
Patent GB-927500-A (GB)
Title: Improvements relating to the carrying of curtain rails by pelmets
Inventor: IDE DOUGLAS
IPC: A47H1/06
Filed: 1960-11-07
Abstract: 927,500. Curtain rails supported by pelmets. IDE BROS. Ltd. Nov. 1, 1961 [Nov. 7, 1960], No. 38171/60. Class 52 (5). Curtain rails 3 having enlarged heads 3a e.g. with L or T cross-section are slid into appropriately shaped grooves 2, 2a formed in the underneath face of a horizontally projecting pelmet board 1. The board 1 is detachably secured by clips 5 to a mounting plate attached to the wall.
Patent GB-1166545-A (GB)
Title: Manufacture and Use of Graft Polymers
IPC: C08F279/02
Filed: 1967-08-21
Abstract: 1,166,545. Coating. CIBA Ltd. 21 Aug., 1967 [2 Sept., 1966], No. 38361/67. Heading B2E. [Also in Divisions C3 and D1] Fibrous substrates e.g. polyester fabric, paper and leather are coated with an aqueous dispersion of a graft polymer formed by grafting acrolein and at least one further monomer on to a synthetic polymer formed from butadiene or a derivative thereof.
Patent GB-1103578-A (GB)
Title: Soap compositions
Inventor: LANCASHIRE FRANK
IPC: C11D9/34
Filed: 1965-09-08
Abstract: Soap compositions comprise (a) soap; (b) a water-soluble amphoteric detergent; and (c) an alkali metal salt of a phosphonic acid of the formula <FORM:1103578/C4-C5/1> wherein X is H or OH and Y is H, CH3, CH2.COOH, CH2.PO3H2 or CH2.CH.(PO3H2)2, or X and Y together are carbonyl oxygen, the weight ratio of amphoteric synthetic detergent to phosphonic acid salt being 1:4 to 4:1 and the weight of (b) and (c) together being at least 5% of the weight of (a). Suitable amphoteric detergents are water-soluble salts of alkylamino alkane carboxylic acids, N,N1-dialkyl ethylene-diamine diacetic acids, N-alkyl taurines and N - alkyl - N1 - sulphophenyl - ethylenediamines. The preferred amphoteric detergent is the sodium salt of N-lauryl-beta-alanine and the preferred phosphonic acid salts are ethane-1,1, 2 - triphosphonic acid penta - sodium salt, propane - 1,1,3,3 - tetraphosphonic acid pentasodium salt and, more especially, ethane-1-hydroxy - 1, 1 - diphosphonic acid trisodium salt. The compositions preferably contain at least 40% by weight of the soap and, in addition to the above ingredients, may contain from 2 to 20%, by weight of the soap, of a low foaming non-ionic detergent, such as the condensation product of one mole of hydrogenated tallow fatty alcohol and 4 moles of ethylene oxide.  The usual detergent ingredients may also be added.
Patent GB-1398527-A (GB)
Title: Rotary hydraulic piston pumps
IPC: F04B1/06
Filed: 1971-08-17
Abstract: 1398527 Reciprocating pumps JOSEPH LUCAS (INDUSTRIES) Ltd 9 Aug 1972 [17 Aug 1971] 38469/71 Heading F1A A radial piston pump comprises a rotary cylinder block 13 with pistons 15 engaging an eccentric track ring 20 rotatably mounted in the housing 10 and angularly adjustable by a rack 28 to vary the piston stroke. As shown, two banks of pistons 15 engage respective track rings 20, 21 with their axes on opposite sides of the cylinder block axis, the rack 28 engaging teeth 26 on both rings 20, 21 to effect simultaneous adjustment. Liquid enters the pump cylinders via inlet 11, centrifugal impeller 17, the housing interior and ports 19, and is delivered via ports 19, a kidney port in a respective valve plate 18 and outlet 12. The edge of the kidney port is spaced from the valve plate-edge by a distance greater than the width of the cylinder port 19, Fig. 3 (not shown), to cause precompression in the cylinders before delivery, the arrangement being such that the precompression is substantially constant irrespective of the track ring position. Rack 28 has pistons for moving it axially in response to control pressures, Fig. 2 (not shown).
Patent GB-843901-A (GB)
Title: Improvements in or relating to cyclopentanophenanthrene compounds
IPC: C07J75/00
Filed: 1958-11-28
Abstract: The invention comprises D 1,4,9(11)-ondrostatriene- -3,17-dione, 9a -bromo (and fluoro) - D 1,4 -androstadiene- -11b -ol-3,17-dione, 9a -fluoro-D 1,4-androstadiene- -3,11,17-trione and 9b , 11b -epoxy- D 1,4-androstadiene-3,17-dione, and a process comprising the treatment of 11b -hydroxy- D 1,4-androstadiene -3,17-dione with mesyl or tosyl chloride to form D 1,4,9-androstatriene-1,37-dione, this compound is brominated with N-bromosuccinimide to produce 9a -bromo- D 1,4-androstadiene-11b  - ol-3,17 - dione, this compound is treated with an alkali metal hydroxide to produce 9b , 11b -epoxy- D 1,4-androstadiene-3, 17-dione and the last mentioned compound is fluorinated with hydrofluoric acid to form 9a -fluoro- D 1,4-androstadiene-11b -ol- 3,17-dione with the optional further step of oxidising this compound to form 9a -fluoro - D 1,4-androstadiene - 3,11,17 - trione e.g. with chromic acid.  The treatment with mesyl or tosyl chloride may be carried out in the presence of pyridine and a catalytic amount of thionyl chloride in dimethylformamide as solvent. The bromination may be effected in dioxane and in the presence of perchloric or sulphuric acid.  Detailed examples are given.
Patent GB-1030135-A (GB)
Title: Improvements relating to lawn mowers
Inventor: SOUTHALL CHRISTOPHER READHEAD
IPC: A01D34/82
Filed: 1963-10-01
Abstract: 1,030,135. Rotary-scythe mowers. H. C. WEBB & CO. Ltd. Dec. 15, 1964 [Oct. 1, 1963], No. 38530/63. Heading A1F. In a rotory-scythe mower a forwardly and upwardly inclined deflector 10 is provided on the mower-casing 11 along the upper edge of the grass-opening 17 the deflector being so inclined that long grass is bent back as it approaches the opening. The machine is that described in Specification 1,010,482 and has non-adjustable wheels 14, the height adjustment of the cutter 12 being effected by bodily movement of the engine (not shown) through means 13. The deflector 10 is a flat metal plate having a flange 18 which may be welded or bolted to the casing 11, or the deflector may be formed integrally with the casing. The deflector extends upwardly at about 45 degrees to the ground. The front of the casing is also provided with a safety bar 19, of tubular steel, to prevent accidental access to the cutter. This bar also extends upwardly and forwardly and assists in bending over the long grass.
Patent GB-1046988-A (GB)
Title: Anthraquinone dyes and their production
Inventor: BRAUN WILLY
IPC: C09B5/24
Filed: 1965-09-10
Abstract: The invention comprises dyes of the formula <FORM:1046988/C4-C5/1> where R1 is H or an alkyl radical of 1-3 carbon atoms; R2 H or a methyl radical; X is a carboxylic ester group. The compounds are prepared by reacting R2C2H2X with a compound of the formula <FORM:1046988/C4-C5/2> in the presence of an alkaline reagent.
Patent GB-1007717-A (GB)
Title: Process for polymerising ethylenically unsaturated compounds
IPC: C08F14/06
Filed: 1961-10-30
Abstract: Monomers having the general formula <FORM:1007717/C3/1> in which R1, R2, R3 and R4 are the same or different and are hydrogen, saturated or non-saturated hydrocarbon radical, halogen, nitrile group, carboxylic acid, carboxy ester or other acyl containing group or halogen-substituted hydrocarbon radical, are polymerized using a complex boron compound as catalyst, the complex comprising a co-ordination linkage between as a first component (a) a boron trialkyl and as a second component (b) a compound containing an element of Group V or VI of the Mendel<\>aeeff Periodic Table which is capable of donating electrons to the boron atom to provide the co-ordination complex compound, but excluding nitrogen containing compounds other than heterocyclic compounds containing a tertiary nitrogen atom.  The catalyst complex may be activated by the presence of a compound containing an element having an electron donating character and a mobile hydrogen atom, e.g. water, an alcohol, a thioalcohol, phosphine, stibine, arsine, hydrogen sulphide or hydrogen selenide may be used. The polymerization can be carried out in bulk or in a polar or inert solvent.  In the examples: (1) vinly chloride is polymerized using (a) boron triethyl complexed with pyridine, diethyl ether or tetrahydrofuran optionally in the presence of water, and (b) boron triisobutyl complexed with diethyl ether; (2) acrylonitrile, methylmethacrylate, styrene and vinyl acetate are separately polymerized using boron triethyl complexed with pyridine, optionally in the presence of water.
Patent GB-873555-A (GB)
Title: Flame resistant cellulose derivatives
IPC: C08B5/00
Filed: 1957-12-17
Abstract: Cellulosic material containing substituted C6H10O5 units having the formula: <FORM:0873555/IV (a)/1> in which X is halogen and R is selected from the group consisting of hydrogen and organic sulphonyl groups and when the R's in the unit are hydrogen some other C6H10O5 units in the cellulose macromolecule contain an organic sulphonyl group, are made by contacting the cellulosic material with a bath containing a tertiary base such as pyridine and an organic sulphonyl chloride, the initial temperature of the bath being below 80 DEG C., keeping the material immersed for a period of at least 1 minute and thereafter contacting the treated material with an aqueous solution of a metallic halide.  The halogen X in the above formula may be introduced into the cellulosic material by the at least partial replacement of an organic sulphonyl group with halogen, the derivative containing from 0,5%-20% by weight of sulphur and from 1%-15% by weight of halogen.  The cellulosic material may be a woven or nonwoven fabric, viscose rayon, cuprammonium rayon, cotton linters, paper pulp and cellulosic fibrous materials.  Specified organic sulphonyl chlorides are methane sulphonyl chloride, ethylsulphonyl chloride, isopropyl sulphonyl chloride, phenyl, benzyl and p-toluene sulphonyl chlorides.  Specified tertiary bases are pyridine, lutidine and quinoline.  The halogen X may be chlorine, bromine, iodine or fluorine.  In esterification of the cellulosic material with an organic sulphonylchloride, while the primary OH group in the 6 position is preferentially involved in the reaction, some esterification may occur in the 2 and 3 positions of the C6H10O5 units.  Examples are given. Specification 873,556 is referred to.
Patent GB-919790-A (GB)
Title: Improved independent suspension system
IPC: B60G3/20
Filed: 1961-11-02
Abstract: 919,790. Road vehicle spring suspensions. FORD MOTOR CO. Ltd. Nov. 2, 1961 [Nov. 21, 1960], No. 39217/61. Class 108(2). An independent suspension system for a motor vehicle comprises a road wheel 31 mounted on a support member 32 connected by ball joints 35, 36 to an upper suspension arm 11 pivoted on a shaft 13 on the vehicle frame and to a lower suspension arm 18 supported by a helical spring 38 and connected to the vehicle frame by a resilient bushing 21 and by a cam and follower mechanism 24. When horizontal shocks are applied to the wheel 31 the cam and follower mechanism 24 permits horizontal displacement of the lower suspension arm and recession of the wheel together with upward displacement of the lower suspension arm against the spring 38. The resilient bushing 21 comprises a rubber member 51 bonded to an inner sleeve 48 mounted on a bolt 22 passing through a frame member 23 and to an outer sleeve 49 welded or press-fitted in an aperture 61 in the lower suspension arm 18. The cam and follower mechanism 24 comprises a sleeve 94 pressfitted or welded to an aperture 92 in the lower suspension arm 18 and provided with an arcuate cam surface 95 engaging a groove 83 in a roller 82 on a bearing 84 freely mounted on a sleeve 76 carried by a bolt 73 passing through a frame member 71. Rubber seals 96, 97 exclude foreign matter from the bearing 84. Alternatively the roller may be mounted on the lower suspension arm with the cam mounted on the frame and below the roller. Rubber stop members 43, 44 come into engagement with a frame member 37 supporting the spring 38 to limit vertical displacement of the wheel 31. The invention may be applied to a susoension system employing torsion bars or leaf springs instead of helical springs, or a system having springs means connected to an upper suspension arm.
Patent GB-376234-A (GB)
Title: Improvements in shuttling mechanism for looms for weaving
IPC: D03D49/52
Filed: 1930-12-31
Abstract: 376,234. Positioning shuttles in looms having automatic weft replenishing mechanism. ATELIERS DE CONSTRUCTION G. DIEDERICHS, Ste-Colombe-les- Vienne, Rhone, France. Dec. 31, 1930, No. 39262. Convention date, March 22. Void [Published under Sect. 91 of the Acts]. [Class 142 (iii).] A shuttle positioning device comprises a horizontal lever a which is pivoted on the lay and is pivotally connected to a rod h attached to the loom frame, the movement of the lay causing a projection e to engage a member f at the beat-up and push the shuttle into replenishing position. The rod h is adjustably supported at its rear end by a knuckle joint pivoted on a bracket l adjustably mounted on the loom frame.
Patent GB-837669-A (GB)
Title: A method and apparatus for suction dredging
Inventor: BLANKEVOORT DIRK
IPC: E02F3/92
Filed: 1958-12-05
Abstract: 837,669. Suction dredger nozzles. BLANKEVOORT EN ZOON N.V., D. Dec. 5, 1958, No. 39292/58. Class 68(1) A suctionnozzle for a suction dredger is characterized in that relief valve means are provided in a chamber in the nozzle to which excavated material and water are supplied separately for mixing together to form a suspension that is withdrawn from the chamber through a suction pipe 10. The relief valve means comprises a spring- loaded plate 27 and prevents excessive pressure building up in the chamber by allowing escape from the chamber of any excess material entering the chamber due to operational circumstances. The depth of cut of the nozzle in the material is regulated by an adjustable plate 23 and the quantity of water entering the chamber from a pipe 25 is controlled by a flap valve 30. The nozzle is maintained against the material to be excavated at a substantially constant pressure in a cylinder 17 connected to a tank containing air under pressure. Pressure variations experienced in previous suction heads due to pitching of the dredger are not experienced in the above described suction head.
Patent GB-932679-A (GB)
Title: Photographic apparatus
IPC: G03B17/52
Filed: 1961-11-03
Abstract: 932,679. Cameras. INTERNATIONAL POLAROID CORPORATION. Nov. 3, 1961 [Nov. 25, 1960], No. 39470/61. Class 98 (1). Photographic apparatus comprises a pair of pressure-applying members at opposite sides of a path for two superposed photographic sheets for spreading processing liquid between the sheets and an element with a front end surface for engaging and positively moving forward a leader attached to the sheets, the element being movable to move the end surface between the pressure members from one side thereof to the other. The camera shown has a back portion 12 designed to hold a film pack with film units as described in Specification 921,927. Each unit comprises two photographic sheets with a leader having a clip which is engaged by a slidable strip spring 50 in the camera housing and moved between pivoted pressure rollers 40, 42. The strip 50 is provided with a return spring (not shown) and a handle 62 which projects through the camera housing and which can be manually operated. The strip is guided in a channel formed by parts 58, 52, 56 and 58. Plate 58 has a slot 68 cut in it which is wider than a narrow tongue 66 of strip 50 so that as strip 50 moves up slope 52 tongue 66 projects into the film pack to engage the leader clip and it is then bent back into a path leading through the rollers 40, 42 when the broad part 65 of the strip is engaged by the strips of plate 58 adjacent slot 68. The leader is provided with projections adjacent the clip which engage behind the rollers and prevents the leader being withdrawn with the strip. As shown in Fig. 11, the handle 62 may be replaced by a pivoted lever 76 connected to strip 50 by another spring strip 82. Specifications 684,592, 714,412 and 921,921 also are referred to.