baber/WOPTO huggingface dataset:
Patent GB-224072-A (GB)
Title: Improvements in or relating to net supporting means for games and sports
IPC: A63B63/00
Filed: 1923-10-17
Abstract: 224,072. Gundry & Co., Ltd., J., Bowden, H. J., and Pennington, J. Oct. 17, 1923. Nets; goals.-The head of a goal or other net is supported by a triangular system of members 2, 3, 5 attached to the upright 1 and cross-bar 4, and joined together at their outer ends 1. A wire or rope 6 extends from this support to a similar support at the other end of the cross-bar, and is tensioned by a runner 8. The sides and back of the net are held down by rigid rods pinned to the ground.
Patent GB-815475-A (GB)
Title: Improvements in gas turbines with a small built-in heat exchanger
IPC: F02C7/08
Filed: 1955-09-12
Abstract: 815,475. Gas turbine plant. HENSCHEL & SOHN G.m.b.H. Sept. 12, 1955 [Sept. 10, 1954], No. 26011/55. Class 110 (3). [A.lso in Groups XII and XIII] A gas turbine plant comprising a built-in heat exchanger arranged concentrically with the turbine axis and axially between the exhaust side of the turbine and the compressor with the heat exchanger tubes disposed parallel to the turbine axis and traversed in cross-flow relationship by the turbine exhaust gases, has annular air collecting chests disposed on either side of the heat exchanger, the turbine and compressor casings connected respectively to one of these chests and an annular passage extending through one of the chests for the turbine exhaust gases. Air compressed in a compressor 5 is passed through an annular connecting member 13 into an air chest 14. From the chest 14 the air passes through the small tubes 16 parallel to the turbine axis to the outlet chest 7. To give additional rigidity, plates 17 are welded to the tube plates 15. The chests 7 and 14 carry brackets 18 by means of which the heat exchanger is secured to a foundation. A hood-shaped steel jacket 6 fixed to the air chest 7 supports the turbine bearing 3. The inner and outer boundary walls 8, 9 of an annular combustion chamber and the turbine stator casing 10 are also attached to the air chest 7 in which are mounted the burners 12. The heat exchanger and stator casing 10 are split along a plane parallel to the turbine axis. The turbine exhaust gases pass through a diffuser 19 and the heat exchanger into the collecting chamber 20. The spaces between the combustion chamber walls 8, 9 and the steel jacket 6 and the stator casing 10 are filled with air from the chest 7 so that the pressure drop across the walls 8, 9 is negligible. This air is allowed to leak through small holes in the walls 8, 9. The walls 8, 9 and jacket 6 may be constructed in one piece.
Patent GB-1470945-A (GB)
Title: Production of cyclic carbonyl compounds
IPC: C07D235/26
Filed: 1975-06-18
Abstract: 1470945 Benzodioxolones, benzimidazolones and benzoxazolones SNAMPROGETTI SpA 18 June 1975 [25 June 1974] 26044/75 Heading C2C Compounds of the formula where R<SP>1</SP> to R<SP>4</SP> are hydrogen or substituents or two adjacent members of R<SP>1</SP> to R<SP>4</SP> are joined to form a ring fused to the benzene ring; and X and Y are -O- or -NR-, where R is hydrogen, alkyl or aryl, are made by reacting a compound where A and B are -OH, -NH 2  or -NHR<SP>11</SP> (R<SP>11</SP> being alkyl or aryl) with an alkyl carbonate, the reaction being carried out in the liquid phase. Some of the compounds (I) have antioxidant and corrosion inhibiting properties and can be used in photographic products.
Patent GB-1337449-A (GB)
Title: Preparation of fluorine containing copolymers
IPC: C08F214/22
Filed: 1971-04-19
Abstract: 1337449 Vinylidene fluoride copolymers E I DU PONT DE NEMOURS & CO 19 April 1971 [2 April 1970] 26047/71 Heading C3P Vinylidene fluoride copolymers are obtained in an aqueous medium containing a watersoluble free radical initiator and a water-soluble hypophosphite. Examples relate to the continuous emulsion polymerization of vinylidene fluoride and hexafluoropropylene using sodium persulphate and sodium hypophosphite. The vulcanized products have improved heat ageing properties.
Patent GB-928529-A (GB)
Title: Improvements in blow-moulding machines
Inventor: SAFFRON RONALD GEORGE
IPC: B29C49/06
Filed: 1960-07-27
Abstract: 928,529. Blow-moulding hollow articles. FEMCO ENGINEERING CO. Ltd. Oct. 11, 1961 [July 27, 1960], No. 26117/60. Class 87(2). Polyethylene bottles are moulded by, forming a parison, by injecting pre-plasticized material between preform die halves 52, 53 and a parison rod 39, opening the die halves 52, 53, lowering the parison rod 39 and parison into position between two halves 19, 20 of a blow mould, closing these, blowing the preform to shape by passing air through a passage and valve 72, 73, in the parison rod 39, (see Fig. 2 not shown), opening the die halves 19, 20 and blowing the moulded article clear. Instead of injection moulding a parison a thermoplastic tube can be extruded to fit over a blow mandrel 56 in the blow mould 19, 20, (see Fig. 3 not shown). Several blow mould halves 19, 20 which are opened and closed by a toggle mechanism are placed on a rotatable table 10 driven by a Geneva mechanism so that they come in turn beneath the preforming means, and are opened radially of the table 10.
Patent GB-1148756-A (GB)
Title: Process for the removal of hydrogen sulphide from natural gases
Inventor: GRUETER BERNHARD
IPC: C10K1/16
Filed: 1966-06-11
Abstract: 1,148,756. Sulphur. B. GRUETER. 11 June, 1966, No. 26122/66. Heading C1A. [Also in Divisions B1 and C5] Hydrogen sulphide and mercaptans are removed from hydrocarbon-containing gas streams, especially from natural gas which also comprises methane, nitrogen and carbon dioxide, by pressure washing with a C 1-5 -trialkyl phosphate at temperatures up to 40‹ C., the ester being subsequently regenerated by depressurization in one or more stages, preferably with heating to 50-150‹ C. The washing is suitably performed at pressures of 40-80 atmospheres and depressurization may be effected in two stages. The preferred regeneration temperature is 100‹C., and regeneration may be assisted by passing a current of an inert or purified gas through the liquid. In one embodiment, especially suitable where the H 2 S content is high a natural gas stream is pressure washed and then passed through a bed of Type 5A molecular sieve to complete its purification. Part of the purified stream is used to regenerate an exhausted bed of molecular sieve, the effluent stream therefrom being recycled with the crude gas stream. In a second embodiment, suitable for use with a lower H 2 S content, the natural gas stream is purified by passage through a molecular sieve bed. Part of the purified effluent stream is passed through an exhausted second bed to regenerate it, and the effluent therefrom, of high sulphur content, is passed through a pressure wash before being recycled with the feed stream. The regeneration temperature for the molecular sieve bed is at least 200‹ C., and is preferably 250-400‹C. The sulphurcontaining gas stream obtained by regenerating the washing agent may be processed in a Claus plant to give elemental sulphur.
Patent GB-716538-A (GB)
Title: Fluid-metering valve for hydraulic motor control system
IPC: F15B11/12
Filed: 1952-10-17
Abstract: 716,538. Hydraulic machines. BENDIX AVIATION CORPORATION. Oct. 17, 1952 [Oct. 26, 1951], No. 26130/52. Class 69 (2) A control valve system of the type shown in Specification 692,838 in which the pump 34 is connected, by passages 33, 40 across the ends of the cylinder 23. The pressure drop in the alternative paths can be adjusted by the needle valve 42.
Patent GB-1335909-A (GB)
Title: Method of producing cubic boron nitride and abrasive material based thereon
IPC: C04B35/5831
Filed: 1971-04-19
Abstract: 1335909 Cubic boron nitride VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT ABRAZIVOV I SHLIFOVANIA 19 April 1971 [12 Oct 1970] 26259/71 Heading C1A [Also in Division C4] Cubic boron nitride is prepared by subjecting hexagonal boron nitride to at least 1000‹ C. and 40 Kbar in the presence of at least one boride of an alkali and/or alkaline earth metal which is present in such a quantity as to increase the boron content in the reactants by at least 10%. Suitable borides are Hg or Be borides which may be present in such quantity as to increase the boron content by 20-55%. The reaction mixture may be preheated to at least 1000‹ C. and cooled before being subjected to the reaction conditions. An abrasive product of the process contains 90-98% cubic boron nitride, not more than 9% unhydrolysable borides, nitrides and free boron, and not more than 1% hexagonal boron nitride with at least 80% of the abrasive material in the form of grains of polycrystalline aggregates.
Patent GB-856798-A (GB)
Title: Improvements in or relating to slide mountings for pre-mounted transparencies
IPC: G03B21/64
Filed: 1959-07-31
Abstract: 856,798. Transparency mounts. PERROT, A. July 31, 1959 [May 1, 1959], No. 26286/59. Class 98(2) A slide mounting for a framed transparency 1 consists of two transparent plates 7, 11 which fit together with the transparency between them, the first plate 7 having a first recess 8 which receives the transparency, and a second recess 9 centrally of the first recess so that a flange 10 is formed between the two recesses; the second plate 11 has a raised portion 13 forming a flange corresponding to the flange 10, so that in the assembled position the transparency itself is gripped between the two flanges only. The transparency 1 is held marginally in cardboard frames 2, 3, which in the assembled position (Fig. 4) are firmly held in recessed portions of plates 7, 11, which are made of transparent plastic. The flanges 10, 13 on the respective lower and upper plates 7, 11 are rectangular, and grip the actual transparency 1 firmly round a narrow peripheral portion only. The small clearance between the transparency 1 and the plates 7, 11 allows slight movement of the transparency without impairing the sharpness of the projected image, and avoids the formation of Newton's rings or other interference patterns. The assembly is finally enclosed in a pair of tray-shaped metallic masks 19, 20, which may be fixed in position by the apparatus described in Specification 773,114
Patent GB-1348747-A (GB)
Title: Devices for detecting leakage
IPC: G01M3/20
Filed: 1972-06-06
Abstract: 1348747 Testing for leaks COMMISSARIAT A L'ENERGIE ATOMIQUE 6 June 1972 [14 June 1971] 26355/72 Heading G1S A vessel to be leak tested (not shown) may be coupled directly to a component 3, Fig.1, or a sniffer 51 may be so connected to pick up a gas sample. Any gas sampled from the test vessel is collected and passed down through a limb 20 of an adsorption element 1 and up through a limb 21 to an ionic pump 6 which detects the presence and amount of any helium trace. Each limb 20, 21 contains activated charcoal 23, Fig. 2, held in position by a grid 24, or by containing tubes and the sampled gas passes around baffles 38 and is cooled by liquid nitrogen contained within a super insulated cryogenic vessel 8 and circulated through pipes 30, 31. Electric batteries 13 and circuit 14 supply current to the pump 6 which detects the helium which alone of the sample gas constituents has been allowed to pass through, the amount of helium detected being proportional to the pump current which after amplification is measured on an ammeter 18. (For Figures see next page)
Patent GB-1009957-A (GB)
Title: Compositions of matter containing cariostatic agents
IPC: A23L33/00
Filed: 1962-07-10
Abstract: Beverages comprise a cariostatic agent consisting of a water-soluble, bland-tasting phosphate ester of a polyhydric alcohol a cyclitol (an alicyclic polyhydric alcohol), a sugar or an oligo- or poly-saccharide, or a salt of such an ester, including mixtures of such esters or salts, and a carrier suitable for oral intake. Prepared ester salts are those of calcium, sodium and magnesium e.g. calcium sucrose phosphate, calcium lactose phosphate and calcium glucose phosphate.  The beverage may contain liquid sugar and calcium sucrose phosphate.  Specification 572,352 is referred to.ALSO:Pharmaceutical preparations and dentifrices comprise a cariostatic agent consisting of a water soluble, bland-tasting phosphate ester of a polyhydric alcohol, a cyclitol (alicyclic polyhydroxy alcohol), a sugar or an oligo- or poly-saccharide, or a salt of such an ester, including mixtures of such esters or salts, and a carrier thereof suitable for oral intake.  Preferred ester salts are those of calcium, sodium and magnesium e.g. calcium sucrose phosphate, calcium lactose phosphate and calcium glucose phosphate. The dentifrice may be liquid paste or powder and apart from conventional ingredients may contain fluorides in addition to the phosphate ester.  The pharmaceutical preparation may be in the form of a tablet or lozenge.  Sugar may be coated with the cariostatic agent.  Specification 572,352 is referred to.
Patent GB-1004569-A (GB)
Title: Process for removing boron compound deposits
IPC: C07C7/17
Filed: 1962-07-10
Abstract: Boron compound deposits are removed from a reaction system by reaction with a gaseous fluorine compound and liberating the resultant volatile boron compounds.  The deposits are typically those formed in systems in which an aromatic hydrocarbon is reacted with an olefin to form an alkylate, the reaction being carried out in the presence of a boron trifluorideanhydrous alumina catalyst.  They usually comprise compounds with a fluorine/boron mol. ratio of less than 3.0, and are mixtures of boron trioxide, hydrated boron oxide (e.g. orthoboric acid, metaboric acid and tetraboric acid) and co-ordination compounds of boron, hydrogen, fluorine and oxygen such as B(OH)2F, B(OH)F2. Gaseous fluorine compounds which may be used include boron trifluoride, hydrofluoric acid and an equimolecular mixture of these.  The aromatic hydrocarbons may be present during the reaction, which may be conducted between 20 DEG  and 230 DEG  C. at pressures from atmospheric to 200 atmospheres.
Patent GB-285943-A (GB)
Title: Improvements in electric fires
IPC: F24C7/06
Filed: 1926-10-25
Abstract: 285,943. Fletcher, J. Y., and Quance, F. G. Oct. 25, 1926. Electric radiators.-In a radiator employing heating resistances 26, 27 and a lamp or lamps 30 in conjunction with a reflector 28, the latter is adjustable to vary the angle over which the heat and light rays are reflected. The reflector is supported by rods 36 carried by brackets 37 and is coupled by a strap 44 to a screwed operating spindle 46. An additional resistance 33 is fitted to the front of the radiator. The lamp and heating elements are mounted on bus-bars 15, 14. 13 connected to the supply mains. The lamp may be of the tubular type, the envelope being stained a flame colour.
Patent GB-678203-A (GB)
Title: Improvements in grinding machines
IPC: B24B49/18
Filed: 1950-08-23
Abstract: 678,203. Grinding. BRYANT CHUCKING GRINDER CO. Aug. 23, 1950 [Aug. 23, 1949], No. 26838/51. Divided out of 678,188. Drawings to Specification. Class 60. A grinding machine comprises means for moving a grinding wheel head parallel to the axis of rotation of a workpiece mounted in a workhead between an advanced position in which the wheel is operative on the work and a retracted position in which the wheel is removed from the work, a trueing device movable transversely to the said axis for trueing an end face of the grinding wheel when the latter is retracted, and means for adjusting the means for moving the wheel head so as to advance the wheel towards the work preparatory to a wheeltrueing operation and provide for the trued end face to be in pre-determined relation to the work when in advanced position. The description is identical with that in Specification 678,188. Specifications 653,011, 678,202 and 678,204 also are referred to.
Patent GB-297394-A (GB)
IPC: B01D33/19
Filed: 1928-09-20
Abstract: 297,394. Vernay, J. B. Sept. 20, 1927, [Convention date]. Closure members, rotary disc.-In apparatus for filtering liquid the members of two series of pipes 38, 39 rotating about a fixed axle are successively brought into communication with fixed pipes 55, 50 respectively by means of a distributing valve formed by a rotary plate 41 and a fixed plate 42. These plates are pressed together by rollers 44 on pistons controlled by springs 45 in a fixed hoop 43.
Patent GB-1038628-A (GB)
Title: í¸-3-oxo-steroids and process for their manufacture
IPC: C07J75/00
Filed: 1963-07-09
Abstract: The invention comprises (1) a process for the preparation of a D 5-3-oxo-steroid by reduction of a D 4,6-3-oxo-steroid with zinc under neutral or slightly acidic conditions; and (2) D 5-3,20-dioxo - 11a ,21 - diacyloxy - 16a  - methyl - 17a -hydroxy-pregnenes and D 5,9(11)-3,20-dioxo-16a -methyl - 17a  - hydroxy - 21 - acetoxypregnadiene. Process (1) may be followed by reduction of the product with a complex metal hydride to a D 5-3b -hydroxy-steroid or isomerization with an acid or a base to a D 4-3-keto-steroid. The conditions for process (1) are such that isomerization does not occur, and they are achieved by the use of zinc e.g. as zinc dust, which may be activated by treatment with an acid, or a zinc alloy, in an alcoholic medium, advantageously in an alcohol containing 1 to 5% by volume of water.  The zinc may also be activated in the reaction medium itself, for example by adding about 2 to 10% by weight (calculated on the reaction medium) of a lower alkanoic acid to the reaction medium.  In the optional subsequent reduction process other oxo groups may also be concomitantly reduced.  The starting materials for process (1) may be of the cholestane, stagmastane, pregnane or androstane series and may contain in positions 9, 11, 12, 14, 15, 16, 17, 20 and 21 free or esterified hydroxyl groups, oxo groups, alkyl groups and/or halogen atoms; and further double bonds e.g. D 9(11). If a D 4,6-3,20-dioxo-17a -hydroxy-11a -formyloxy-21-acetoxy -pregnadiene is used as starting material, the formyloxy group can be selectively hydrolysed, e.g. with an alkali metal carbonate in an aqueous solvent or by absorption and subsequent elution, and the free 11a -ol converted to a sulphonic ester and this to a D 9(11)-steroid. Examples describe the above processes and products and (1) the preparation of D 5 - 3b ,17b  - dipropionyloxyandrostene by reaction of D 5 - 3b  - hydroxy - 17b  - propionyloxy-androstene with propionic anhydride; and (2) the preparation of D 3,5 - 3 - ethoxy - 11a -formyloxy - 16a  - methyl - 17a  - hydroxy - 20-oxo - 21 - acetoxy - pregnadiene by enol-acylation, and its conversion to D 4-3,20-dioxo-6b -fluoro - 11a  - formyloxy - 16a  - methyl - 17a  - hydroxy - 21 - acetoxy - pregnene and, by the process outlined above, the free 11a -ol, the 11-mesylate, and D 4,9(11) - 3,20 - dioxo - 6b - fluoro-16a  - methyl - 17a  - hydroxy - 21 - acetoxy - pregnadiene and the corresponding 6a -fluoro epimer.  6 - Dehydro - testosterone propionate is prepared by brominating 3-oxo-17b -propionyloxy-5a -androstine and heating the dibromide with lithium chloride in dimethylformamide.  D 4,6 - 3,20 - Dioxo - 17a  - hydroxy - 21 - acetoxy-pregnadiene is prepared by heating 2,4-dibromo-3,20 - dioxo - 17a  - hydroxy - 21 - acetoxy - allo-pregnane with lithium bromide in dimethyl-formamide.
Patent GB-709833-A (GB)
Title: Improved process and means for moving a continuous sheet of glass in glass grinding and/or polishing plants
IPC: B24B7/24
Filed: 1951-11-20
Abstract: 709,833. Surfacing glass. GLACERIES DE LA SAMBRE SOC. ANON. Nov. 20, 1951 [Dec. 14, 1950], No. 27233/51. Class 60 An endless sheet of glass 8 is continuously traversed through a glass surfacing apparatus by arranging some of the tools 3 to project beyond the edges of the sheet and rotating the tools projecting beyond opposite edges in opposite directions. In one embodiment, four tools are supported on a transverse beam 1 and the outer tools are rotated through variable speed gearing by motors which also drive the intermediate tools 5 through a common shaft. Alternatively, each tool may be driven by a separate motor. Where both sides of the sheet are treated simultaneously by opposed pairs of beams reciprocated in anti-phase, the end tools of each beam travel between a projecting position and one where they are completely in contact with the glass. If single disc tools having a diameter substantially equal to the width of the sheet are used, the glass is traversed by small marginal tools inserted between them.
Patent GB-663808-A (GB)
Title: Composite match plate for use in foundries
IPC: B22C7/04
Filed: 1949-10-24
Abstract: 663,808. Patterns. COOPER ALLOY FOUNDRY CO. Oct. 24, 1949, No. 27316/49. Class 83 (i). [Also in Group II] Casting composite articles.- A composite pattern-plate comprises a flat plate 64 of relatively large area having an opening of relatively small area to receive a pattern insert 62 and means to lock the insert in the plate. The plate is preferably of plywood and the pattern insert is formed by casting a phenolic resin (see Group II), or a low melting-point alloy. For very simple shapes, the pattern insert may be made of wood by cutting it to shape. The peripheries of the insert and of the opening in the plate are formed with cooperating grooves 66, 68 of semi-circular crosssection which, on assembly, form an internal passage 80 communicating with one edge of the plate through passages 82, 84. In order to lock the insert in position a low melting-point alloy is cast into the passage 80 through the passage 82, the passage 84 serving as a vent. If desired, additional locking may be provided by means of transverse passages 86, 88 communicating with the passage 80 and formed by drilling the insert and plate. The plate 64 may be formed with a number of openings each receiving a pattern insert.
Patent GB-1215659-A (GB)
Title: Anti-corrosion pigment
Inventor: GIULIANI ARMANDO
IPC: C09C1/14
Filed: 1969-05-29
Abstract: 1,215,659. Dibasic lend phosphite. A. GIULIANI. 29 May, 1969 [24 Feb., 1969], No. 27354/69. Heading C1A. [Also in Divisions C4-C5] Dibasic lead phosphite (2Pbo.PbHPO 3 .¢H 2 O) supported on silica, preferably diatomaceous silica, may be produced by adding aqueous phosphorous acid to an aqueous suspension of litharge (PbO) and silica, preferably containing a minor amount of formic, acetic, propionic or butyric acid, while heating at 33-40‹ C. The white or off-white product preferably contains 45-55% by wt. of phosphite and correspondingly 55-45% silica. It may be ground to pass a 300 mesh, preferably a 360 mesh, sieve, and used as an anti-corrosive pigment in paints.
Patent GB-273872-A (GB)
Abstract: 273,872. Sunbeam Motor Car Co., Ltd., Coatalen, L., and Irving, J. S. June 3, 1926. Systems, electric. -A dynamo 9 supplies storage batteries 2, 5, the battery 2 feeding the lamps 3 and starting motor 4, and the battery 5 serving the ignition coil 6. Electro - magnetic cut-outs 10, 11 with automatic switches 100, 110 control delivery to the batteries. Since the battery 5 is of smaller output than the battery 2, a resistance 12 is placed in its circuit but not in that of the ignition coil 6. A warning lamp 13 indicates when the ignition switch 14 is closed.