baber/WOPTO huggingface dataset:
Patent GB-1400852-A (GB)
Title: Laminated vinylidene fluoride polymer containing constructions
IPC: B29B15/12
Filed: 1972-06-14
Abstract: 1400852 Corrosion-resistant vessel PENNWALT CORP 14 June 1972 [18 June 1971] 27859/72 Heading B1X [Also in Divisions B5 D1 and F2]  A cylindrical process vessel is built up of shaped pieces of a laminate (see Divisions B4-5) of glass cloth and polyvinylidene fluoride so that the inside surface of the vessel is pure polyvinylidene fluoride and thus resistant to chemical and thermal attack, an intermediate layer is formed from a mixture of poylvinylidene fluoride, mica and stainless steel which act as ionic permeation barriers, and the outer surface is formed from a silanefinished glass cloth to which may be anchored a reinforcing shell constructed from glass mat impregnated with an epoxy resin.
Patent GB-264946-A (GB)
Title: Improvements in anti-breakage and trimming apparatus for coaling of ships and the like
IPC: B63B27/22
Filed: 1925-11-06
Abstract: 264,946. Paterson Hughes Engineering Co., Ltd., and Muir, A. Nov. 6, 1925. Shoots.-A spiral shoot 5 supported from the ship 1 is rotated by hand, by power, or by automatic means, as the ship rises or falls with the tide or with the load, so that the shoot remains in operative connection with the feed shoot 12. As shown, the centre column 6 of the shoot 5 rests in a bearing in a hopper 7 suspended by chains 9 from the ship's hatchway, and is free to slide at the upper end through a worm-wheel 32, Fig. 2, mounted in a bearing in a cage 16 suspended from an overhead crane structure 4 on the coaling staith 3. The worm gearing 31, 32 is driven as the ship rises and falls by chains 13 secured to the ship and held taut by a counterweight 18. The cage 16 can be traversed in two directions at right angles. The space between the loading shoot 10 on the staith and the spiral shoot 5 is bridged by shoots 11, 12. The shoot 11 is carried on a turntable 42, Fig. 5, on a bogie which is free to move along rails 38 secured beneath the shoot 10. The shoot 12 is pivoted at 30 on the shoot 11, and its lower end is mounted on a carriage which rests on guide rails on the side plates of the spiral shoot. The hopper 7 may discharge through a rotatable cowl 58 and telescopic shoots 71 - - 73 for trimming. As shown, the cowl is rotated by a hand-winch 78 through bevel gearing on countershafts 67 - - 69, and the shoots 71 - - 73 are extended and withdrawn by ropes 74 - - 76 operated by a winch 70.
Patent GB-835128-A (GB)
Title: Apparatus for examining a substance utilising the effect of the substance on the q factor of a resonant circuit
IPC: G01R27/26
Filed: 1956-09-13
Abstract: 835,128. Electric furnaces. AJAX ELECTRIC CO. Sept. 5, 1956 [April 13, 1956], No. 27121/56. Class 39(3) An electric salt bath furnace has readily removable electrodes and means for minimizing electrode corrosion by substantially excluding contact of air with the electrodes at the bath surface. As shown, a furnace F comprises a pot P, a rolling cover C, tile means TM, and two pairs of electrodes E. Each electrode has a hot leg HL, positioned below the normal level 20 of the salt bath, connected by an upwardly sloping intermediate portion IL to a laminated cold leg CL which is positioned above the bath surface and connected to busbars B of a power source T. The hot legs of each associated pair of electrodes are offset towards each other to ensure that current will flow through the resulting shorter path between the hot legs and not through the intermediate portions and to provide supporting shoulders 27 for tile means TM. The pot P is chamfered as at 41 to provide a support for the bottom surface of the intermediate portion of each electrode. Removable tile means, comprising tiles 42 and 43 co-operate with the furnace wall and closely surround the portion IL to protect it from the atmosphere. Tile 42 fits between the electrodes and rests on the shoulder 27, and tile 43 which has a sloping surface 44 to conform to the upper surface of portion IL overlies a pair of electrodes and the tile 42, its bottom surface 45 resting on the upper end surface 29 of the hot leg HL, tie rods 39 also being provided to hold the tiles in place. A tile 42a (Fig. 2, not shown) between the two pairs of electrodes may be cemented in position, or may be an integral part of the wall. On initial heating, the outside layers of the portion IL oxidize to form a scale which completely fills the small air spaces between tiles and electrodes and thus prevents the ingress of air and further corrosion. In a modification, Fig. 7, three electrodes are arranged in triangular formation the cold legs being brought out in parallel formation for connection to a three-phase supply, shaped tile means 59, 64, 68, 69, 72, 73 and 77 being provided to enclose the intermediate portions uf the electrodes.
Patent GB-654035-A (GB)
Title: Manufacture of beta-isopropylnaphthalene hydroperoxide and beta-naphthol
IPC: C07C409/08
Filed: 1948-10-30
Abstract: b -Isopropylnaphthalene hydroperoxide is prepared by oxidizing b -isopropylnaphthalene in the liquid phase in the substantial absence of heavy metal oxidation catalysts at elevated temperatures with molecular oxygen, it may then be treated with acidic substances to give b -naphthol.  The oxidation is preferably carried out between 100 DEG  and 150 DEG  C., e.g. 110-135 DEG  C., and in the presence of an alkaline substance, e.g. alkali metal carbonates or hydroxides, tertiary alkali metal phosphates, and sodium bicarbonate.  The oxygen may be mixed with inert gases or vapours, e.g. nitrogen, carbon dioxide or steam.  The process may be either batch or continuous, and may be carried out with the b -isopropylnaphthalene dispersed in water with, e.g., stearates, oleates, and lauryl sulphates, with the pH maintained between 7 and 12 with alkali, and the temperature between 70 DEG  C. and the boiling-point of water at the operating pressure.  The oxidation may be carried out in an inert solvent, or excess isopropylnaphthalene; the hydroperoxide may be isolated, e.g. by distillation or extraction.  The hydrolysis of the peroxide is preferably done at elevated temperatures; an inert solvent may be used, e.g. unchanged isopropylnaphthalene.  Many suitable acids are specified, e.g. sulphuric acid, and other acidic substances, e.g. aluminium chloride and regenerated hydrogen ion-exchange materials. Acetone is a by-product in this hydrolysis. b -Isopropylnaphthalene is prepared by alkylation of naphthalene with propylene.  In the examples, (1-5), b -isopropylnaphthalene is oxidized to the hydroperoxide and (6-10), subsequently hydrolysed to b -naphthol.
Patent GB-278901-A (GB)
Title: Improvements in the mounting of the bodies of rail vehicles
IPC: B61F1/14
Filed: 1926-11-09
Abstract: 278,901. Ireland, W. E. Nov. 9, 1926. Springs, arrangement of. -A rail vehicle having a body 2 supported on springs 1 on an undertruck has additional resilient means 10 acting between the end of the body and the undertruck to resist upward movement of the end of the body beyond the normal position while permitting free downward movement of the body relatively to the undertruck. A lever 4 pivoted to the undertruck is connected at one end to the body by a loop 7 and at the other to a piston 8 of a cylinder 9 which contains springs 10 which may be of rubber. The compression of air in the cylinder 9 may be utilized as resilient means, an adjustable leak being provided. The cylinder 9 may be situated on the centre line of the vehicle and co-operate with two levers 4 at each side of the vehicle or with a single V-shaped lever.
Patent GB-390438-A (GB)
Title: Improvements in universal joints
IPC: F16D3/224
Filed: 1932-10-10
Abstract: 390,438. Motor-vehicle driving-gear. HANFT, H., 3, Hopfenstrasse, Munich, Germany. Oct. 10, 1932, No. 28219. Convention date, Oct. 9, 1931. [Class 79 (ii).] A universal joint for driving the front wheels of motor vehicles comprises a head a and a socket b having rotatably mounted in their adjacent surfaces, on ball bearings or otherwise, insets c &c., one of which has a projection, the corresponding inset having a groove to accommodate a drive-transmitting body. In the form shown there is also an intermediate shell f, with side flanges g, between the head and socket, and all have rotatable insets c, h, k, n. The drive-transmitting bodies are balls e, m or rollers, with or without cages and arranged to roll in longitudinally straight or curved semicircular grooves such as d in all the insets. When the joint is deflected about any axis, the balls lying in a plane perpendicular to this axis roll in their grooves, and those in the same plane as the axis turn bodily with their insets. In intermediate positions, the balls roll and turn. By curving the grooves d, the driving torque can cause the vehicle to run straight or can be used for steering it according to the direction of curvature of the grooves. The Specification as open to inspection under Sect. 91 states that semi-automatic steering is possible with the joint. This statement does not appear in the Specification as accepted.
Patent GB-764547-A (GB)
Title: Improvements relating to the depolymerization of high molecular weight dextran
IPC: C08B37/02
Filed: 1954-09-30
Abstract: Dextran of very high molecular weight is irradiated with high energy electrons to yield depolymerized dextran having, for example, a molecular weight ranging between 25,000 and 100,000, suitable for clinical use.  The energy of the electrons may range from 50,000 to 20 million electron volts.  The dextran may be irradiated with 106 to 108, preferably 107, Roentgen units in a polyethylene container sterilization of the dextran and cross-linking of the polyethylene taking place simultaneously with depolymerization of dextran.  The dextran may be irradiated in an atmosphere of air, nitrogen, argon, helium, krypton or xenon.ALSO:Dextran of very high molecular weight is irradiated with high energy electrons to yield depolymerized dextran having, for example, a molecular weight ranging between 25,000 and 100,000, suitable for clinical use.  The energy of the electrons may range from 50,000 to 20 million electron volts.  The dextran may be irradiated with 106 to 108, preferably 107, Roentgen units in a polyethylene container, sterilization of the dextran and cross-linking of the polyethylene taking place simultaneously with depolymerization of dextran.  The irradiated dextran may be dissolved in water and a clinically useful fraction may be precipitated by adding methanol, ethanol, propanol or butanol.  The dextran may be irradiated in an atmosphere of air, nitrogen, argon, helium, krypton or xenon.
Patent GB-340212-A (GB)
Title: Improved cathode for thermionic devices and method of manufacturing the same
IPC: H01J1/20
Filed: 1929-09-18
Abstract: 340,212. Thermionic cathodes. BULLIMORE, W. R., 22, Highbury Grove, London. Sept. 18, 1929, No. 28341. [Class 39 (i).] An indirectly-heated cathode comprises a filamentary heater c disposed within an insulator a which is surrounded by a helical winding of metallic tape upon which is subsequently deposited a thermionically-active substance as a continuous layer which can expand or contract independently of the insulator. The heater is threaded through holes in a porcelain insulator. One end of a nickel or molybdenum tape is welded to a bracket f carried by a clip e, and the other end, subsequent to the winding operation, is welded to a metal rod i which closes the end of a metal sleeve g mounted on the insulator. A porcelain plug h is housed within the sleeve g and serves as insulation for the bend d of the heater. The thermionic substance may be applied by dipping or spraying, and the cathode may be mounted on a conductor or supports extending from the pinch of the valve.
Patent GB-718349-A (GB)
Title: Moisture-proof coatings for electrical components
IPC: H01G13/00
Filed: 1952-11-11
Abstract: A moisture-proof insulating coating for resistors, condensers, inductances or other electrical components comprises a base coat of monochlorotrifluoroethylene and a cover coat of silicone varnish, both being polymerized after their application, the varnish comprising a non-ionic higher alcohol wetting agent to ensure that the cover coat adheres uniformly to the polymerized base coat.  The base coat solution may consist of 25 per cent. water-ground mica filler and 75 per cent. of a 56 per cent. suspension of monochlorotrifluoroethylene in xylol.  After dipping the component in this solution it is dried and baked at 400 DEG F. to 450 DEG F.  The silicone varnish, which is then added to provide a moisture barrier may consist of 75 per cent. of Dow Corning 996 polymethylsiloxane varnish (65 per cent. solids in xylol) 24 per cent. of water-ground mica filler, and 1 per cent. of alkyl aryl polyether alcohol as a wetting agent.  The particular silicone varnish, higher alcohol or filler specified is not critical.  The exterior coating is cured in a circulating air oven at 300 DEG F.  Two or more separate coatings may be applied.
Patent GB-763456-A (GB)
Title: Improvements in coated non-woven fibrous sheets and methods of making same
IPC: A61F13/02
Filed: 1953-10-16
Abstract: 763,456. Coated non-woven fabric. JOHNSON & JOHNSON (GREAT BRITAIN), Ltd. Oct. 16, 1953 [Oct. 17, 1952], No. 28671/53. Class 140. A moisture-resisting wrapping or a backing which may be coated with pressure-sensitive adhesive comprises a layer of thermoplastic film-forming material applied to, self adherent to, and co-extensive in width and length with a non-woven layer of textile or paper fibres arranged predominantly in one direction and adhesively bonded together at spaced-apart lines or points separated by less than the average length of the fibres before the application of the layer of thermoplastic material thereto, the layer of fibres being partially embedded in the thermoplastic film-forming material so that the majority of the fibres partially projects from one surface only of the product. Adhesive is applied to the surface from which the fibres project. Thermoplastic film-formers may be rubber, synthetic rubber, polyvinylidene chloride, nitrocellulose, regenerated cellulose, cellulose acetate, or polyvinyl chloride, and they may be applied in solution or in dry plasticized form. Preferred filmformer is however, polyvinyl chloride paste applied by spreading or calendar. Specification 468,529 is referred to.
Patent GB-264625-A (GB)
Title: Improvements in grinding and sanding machines
IPC: B24B21/00
Filed: 1925-11-14
Abstract: 264,625. Critchley, H. Nov. 14, 1925. Band apparatus.-In a belt grinding or polishing machine for treating moulded work, in which the belt is shaped at the operative point by a former, and the work is pressed against the belt by a support, means are provided for guiding, flexing and pre-forming the belt before it reaches, and after it leaves, the former. The abrasive belt f runs on pulleys d supported by brackets c on a table a and the belt is tensioned by a weighted jockey pulley e. Above the bolt is a holder h for interchangeable formers k, the holder either being carried by a counterbalanced lever i or by guide bolts engaging a plate on the lever or on a slide and carrying springs pressing the holder downwards. The work is supported between a centreing socket w<1> and a chuck x mounted on a carriage v movable on rails on a member w mounted on a support l which is angularly adjustable on a slide m. The slide is movable in guides n on the table a and may be moved by a pedal t against the action of springs p which lift the table a distance regulated by a stopscrew r and a members. The belt is guided and pre-formed when approaching and leaving the former k by wheels u adjustable by screws u<1>; or pairs of wheels may be used acting on both faces of the belt, the belt being formed in either case by the wheels into a V to conform more easily to the shape of the former; more than one series of wheels may be used. In operation, the carriage v is moved by hand and the work is rotated by a handle y; for spiral work gearing may be provided for rotating and feeding the work. Specification 264,624 is referred to.
Patent GB-422937-A (GB)
Title: Improved manufacture of sulphuric acid derivatives of organic sulphur compounds
IPC: C07C315/02
Filed: 1933-10-17
Abstract: Sulpho acids having emulsifying, foaming and saponaceous properties are prepared by treating with sulphonating agents the sulphones or sulphoxides obtained by oxidizing nonaromatic organic sulphides containing an aliphatic or cycloaliphatic residue having at least eight carbon atoms and one or more double bond or hydroxy group.  In examples: (1) dodecyl (b :g -dihydroxypropyl) sulphide, obtained from dodecyl mercaptan and glycerolchlorhydrin, or the corresponding decyl, tetradecyl or hexadecyl sulphide is oxidized with hydrogen peroxide in acetic acid and the resulting sulphone sulphonated in carbon tetrachloride with chlorsulphonic acid; a similar product is obtained by sulphonating sulphones containing the b -hydroxyethyl group instead of the b :g -dihydroxypropyl group: (2) a mixture of mercaptans obtained from glycerin chlorhydrin and aliphatic mercaptans containing 8, 10, 12, 14 and 16 carbon atoms is oxidized with hydrogen peroxide and sulphonated with sulphuric acid; an aqueous solution of the product may be used as a hair wash: (3) a mixture of b -hydroxyethylnaphthenylsulphides, obtained from ethylenechlorhydrin and the sodium compound of naphthenemercaptans, is oxidized with hydrogen peroxide and then sulphonated: (4) oleicethylsulphide, obtained from ethylmercaptan and an inorganic ester of oleic alcohol, is oxidized and then sulphonated.  The Specification as open to inspection under Sect. 91 comprises also the oxidation and sulphonation of higher organic sulphides containing aryl groups.  This subject-matter does not appear in the Specification as accepted.ALSO:Sulpho acids having emulsifying properties are prepared by treating with sulphonating agents the sulphones or sulphoxides obtained by oxidizing non-aromatic organic sulphides containing an aliphatic or cycloaliphatic residue having at least eight carbon atoms and one or more double bond or hydroxy group.  In examples: (1) dodecyl (b  : g -dihydroxypropyl) sulphide, or the corresponding decyl, tetradecyl or hexadecyl sulphide is oxidized with hydrogen peroxide in acetic acid and the resulting sulphone sulphonated in carbon tetrachloride with chlorsulphonic acid; a similar product is obtained by sulphonating sulphones containing the b -hydroxyethyl group instead of the b  : g -dihydroxypropyl group: (2) a mixture of mercaptans obtained from glycerin chlorhydrin and aliphatic mercaptans containing 8, 10, 12, 14 and 16 carbon atoms is oxidized with hydrogen peroxide and sulphonated with sulphuric acid; (3) a mixture of b -hydroxyethyl-naphthenyl sulphides. is oxidized with hydrogen peroxide and then sulphonated: (4) oleicethylsulphide is oxidized and then sulphonated.  The Specification as open to inspection under Sect. 91 comprises also the oxidation and sulphonation of higher organic sulphides containing aryl groups.  This subject-matter does not appear in the Specification as accepted.
Patent GB-480460-A (GB)
Title: Improvements in or relating to rock asphalt paving tiles
IPC: E01C5/12
Filed: 1936-10-23
Abstract: 480,460. Paving-tiles. BERRY, A. L. Oct. 23, 1936, No. 28882. [Class 87 (i)] A moulded rock asphalt tile is provided on its upper surface with projections a separated by longitudinal and transverse grooves b, c. A narrow flat strip d may be provided around the edges of the tile. The upper part or the whole of the tile may be of coloured rock asphalt. The grooves, the groove sides or the whole of the tile surface may be painted or enamelled. The tile may be 8 in. by 5 in. by 0À6 in. thick (excluding the projections) with grooves 0-lin. wide and the projections may be 0-5in. square at the top and 0À6in. square at the base.
Patent GB-930275-A (GB)
Title: Wire receptacle construction
IPC: B65D21/04
Filed: 1960-08-22
Abstract: 930,275. Wire crates. MID-WEST METALLIC PRODUCTS Inc. Aug. 22, 1960 [Dec. 21, 1959], No. 28938/60. Class 18. A crate, adapted for nesting and tiering with identical crates, has a bottom part rigidly interconnected with side parts, which include upper and lower tiering support members, whereby the lower tiering support members of one crate are designed to engage and rest upon the upper tiering support members of a second identical crate, with the distance between the upper and lower support members providing a clearway for the purpose of nesting. The crate has a number of rod-like elements forming three closed loops of rectangular shape 21, 23, 25, which are rigidly interconnected by diagonally arranged rods 33. The upper loop 21 has two opposite sides bent downwards to provide the upper tiering support members 13. The intermediate loop 25 and lower loop 23 have two opposite sides 25c and 23c bent downwards and upwards respectively to form a hook-like lower tiering support member 14. The bottom part 11 comprises the lower loop 23 interconnected by transverse rods 31 to which a number of longitudinally extending rods 32 are welded on. In tiering relationship the lower tiering support members 14 engage and rest upon the upper tiering support members 13.-In nesting relationship the upper crate is located telescopically between the shaped diagonal rods 33 as indicated in Fig. 4. Nesting of crates is facilitated by the provision of clearways 15 between the upper and lower tiering support members.
Patent GB-1337801-A (GB)
Title: Device for applying a roll of paper or plastics web to a winding apparatus
IPC: B65H19/30
Filed: 1971-06-21
Abstract: 1337801 Lifting web rolls WINDMOLLER & HOLSCHER 21 June 1971 [6 July 1970] 28968/71 Heading B8R A device for lifting and inserting a web roll 3 into a reel stand 5<1> comprises two separate but like linkages for engaging the respective ends of the roll shaft 2<1>, each linkage comprising a manually operable lever 10, a first hanger bar 6 pivotally connected at one end to a point intermediate the ends of the lever 10 and carrying at its end a hook 8 for engaging a supporting pin 4<1> on the reel stand 5<1>, and a second hanger bar 7 adjustably and pivotally connected to the lever 10 at one end of the lever and having a hook 9 for engaging the roll shaft. With the hooks so engaged and with the roll 3 in the position shown in Fig. 1 downward movement of the levers 10, or pivotal movement of the stand 5<1> if this is of the rotary type as shown, will cause the roll to be lifted into the stand where it can be positioned on supporting mandrels such as 11<1> (Fig. 2, not shown).
Patent GB-1094057-A (GB)
Title: Improvements in or relating to fuel systems for internal combustion engines
IPC: F02M1/00
Filed: 1965-07-08
Abstract: 1,094,057. Spray carburetter. S. A. BACKMAN and K. L. WINQUIST. July 8, 1965 [July 9, 1964; March 5, 1965], No.28970/65. Heading F1B. An injection valve 3, the spring load 4 of which is varied in accordance with the throttle control linkage 7, is supplied with a pulsating fuel pressure which produces vibration of the valve when it is open. The valve head is provided with a sharp breakaway edge and the pulsating fuel supply is provided by a diaphragm pump. In Fig. 3 (not shown) the valve is a bull valve carried by a stem (19), the spring load being adjustable by an arm (18) connected to the throttle lever (26). The fuel may be liquefied petroleum gas.