baber/WOPTO huggingface dataset:
Patent GB-204661-A (GB)
Title: Improvements relating to steam turbines
IPC: F01D9/04
Filed: 1922-04-29
Abstract: 204,661. Wallsend Slipway & Engineering Co., Ltd., (Belluzzo, G.). April 29, 1922. Blades. - The guide blades in turbine diaphragms are rounded into enlarged bases as at a, to avoid sharp corners in the passages, as described in Specification 200,269, and have a cross - section progressively changing with the radius so a,s properly to account for the radial change in blade velocity.
Patent GB-753393-A (GB)
Title: Jacketed flask mold for centrifugally casting tubular metal articles
IPC: B22D13/10
Filed: 1954-05-19
Abstract: 753,393. Centrifugal casting-machines. AMERICAN CAST IRON PIPE CO. May 19, 1954 [June 12. 19531. No. 14723/54. Class 83(1). A hollow, metal centrifugal casting - mould comprises an elongated, substantially cylindrical outer jacket 11, an inner flask 12 housed within and supported at a number of axiallyspaced points 16 by said jacket, the flask being free to move longitudinally relative to said jacket upon differential thermal expansion and contraction of the flask and jacket, and means preventing relative rotation between the flask and jacket. The flask 12 has vents 34, as described in Specification 717,515, which is referred to, and which are axially aligned with holes 35 in the jacket 11 when the flask and jacket are at the same temperature. The supporting ribs 16 and end-portions 18, 19 are of an external diameter such that there is a clearance between the jacket and flask at normal temperatures, and there is metal-to-metal contact between the flask and jacket when the temperature difference between the two becomes a maximum after casting. Keys 31 prevent relative rotation between flask and jacket. The flask is lined with resin-bonded sand and has end hoppers 20, 21 for receiving cores which are held in by wedges, all as described in Specification 717,515. Specification 717,568 also is referred to.
Patent GB-199386-A (GB)
Title: Apparatus for producing moving advertising pictures
IPC: G09F11/23
Filed: 1923-06-05
Abstract: 199,386. Gisun, B. June 14, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Illumination, changing advertisements by controlling.-Removably mounted in the front of a box-like casing is a composite picture comprising a transparent sheet 15 having on its front face prints or paintings such as 16 and on its rear face other prints or paintings 17. Located behind portions of the picture are opaque members 19 the shadows from which, representing e.g. the eyes of a figure, are cast upon the picture by a moving lamp enclosed in the casing, the shadows being displaced by the movements of the lamp and thus giving to the picture the appearance of motion. A second lamp located outside the casing illuminates the front of the picture. The internal lamp is secured to an oscillating arm driven by an electric motor which also actuates a switch for alternately lighting the internal and external lamps in succession.
Patent GB-514918-A (GB)
Title: Improved apparatus for preserving food
IPC: B65D51/16
Filed: 1938-05-19
Abstract: 514,918. Food - preserving vessels; closures. LAING, J. May 19, 1938, No. 14918. [Classes 66 and 125 (iii)] A vessel 1 for use in preserving food by heating and subsequent storage has a non - return release valve, through which steam &c. can escape during the heating, formed by an opening or openings 16, Fig. 2, in the wall of the vessel underneath the cap 4, or openings 8, Fig. 3, in the neck of the vessel below the boundary edge of the cap 4, together with a tensioned rubber ring 6, covering the joint between the cap and the vessel. The cap may be attached by screw or bayonet joint, openings 5 being provided between the cap and the vessel for the escape of the steam &c. A ledge 15 may be provided on the the vessel to catch drips. The vessel may be made of sheet metal or refractory glass.
Patent GB-637776-A (GB)
Title: A process for the catalytic production of carbon monoxide and hydrogen from hydrocarbons and steam
IPC: C01B3/44
Filed: 1948-06-02
Abstract: The conversion of hydrocarbons with steam into carbon monoxide-hydrogen mixtures is effected with a finely divided catalyst in the fluidized state.  The heat required for the reaction may be transmitted to the reactor by continuously withdrawing a portion of the catalyst, heating and recycling it to the reactor.
Patent GB-1067868-A (GB)
Title: Improvements relating to dispense systems for beverages
Inventor: BEAUMOUNT HAROLD
IPC: B67D1/12
Filed: 1964-04-11
Abstract: 1,067,868. Dispensing beverages. PORTER-LANCASTRIAN Ltd. July 12, 1965 [April 11, 1964], No. 15065/64. Heading A4T. A carbonated beverage dispenser comprises a fluid-operated diaphragm metering pump connected to a bar tap, with a screw, needle or pinch cock in the connection within easy reach of the bar for adjusting head.
Patent GB-580665-A (GB)
Title: Preparation of new polymerisable methacrylic esters and polymers and interpolymers thereof
IPC: C08F20/22
Filed: 1944-08-08
Abstract: Methacrylates containing fluorine are prepared by reacting methacrylic acid, anhydride, acid chloride or methyl ester, with a primary or secondary saturated alcohol which contains 2, 3 or 4 carbons, one hydroxyl group and at last one fluorine atom not attached to the same carbon atom as the hydroxyl group and no other substituents, preferably in the presence of a strong acid and also a substance which inhibits polymerization such as pyrogallol, hydroquinone or tannic acid.  The water, hydrogen chloride or methyl alcohol formed during the reaction may be removed, for example, by evaporation.  The products of the invention may be polymerized alone or with other polymerizable materials, dyes, plasticisers or polymerization inhibitors.  In the examples: (1) 2 : 2 : 2-trifluoroisopropanol, methacrylyl chloride and hydroquinone are reacted together to give trifluoroisopropyl methacrylate which is polymerized by means of heat in the presence of benzoyl peroxide; (2) trifluoroethyl methacrylate is prepared from 2 : 2 : 2-trifluoroethanol, methacrylyl chloride and pyrogallol and is polymerized as in (1); (3) fluoroethyl methacrylate is prepared from monofluoroethanol, methacrylyl chloride and pyrogallol and polymerized as above.  The preferred polymerization catalysts are lauryl-, succinic-, benzoyl-, ethylhydrogen-, acetone- or diethylperoxides, benzoin, diacetyl or uranyl acetate and nitrate.
Patent GB-939554-A (GB)
Title: Improvements in or relating to a device for joining together a pair of members at least one of which is a pipe, tube or sleeve
IPC: F16B21/12
Filed: 1961-04-26
Abstract: 939,554. Stud and socket fastenings. H. W. WILLIAMSON, and P. B. ENGINEERING CO. Ltd. March 28, 1962 [April 26, 1961], No. 15081/61. Class 44. [Also in Group XXVIII] A releasable fastening comprises a pipe 12 and a pipe or rod 10, the latter having at its end a bore 14 in which two plungers 15, 16 are housed, the latter being mounted on a threaded shank 17 of the former for movement toward and away from each other. In the case of a pipe 10 the bore is formed in a block 13. The bore may be of square cross-section to prevent rotation of square section plunger 16. When block 13 has been introduced into pipe 10, a screw 24 is is inserted in the block to limit inward movement of the plungers. Pipes 10, 12 are joined by unscrewing plunger 15, the plungers moving outwardly into engagement with diametrically opposed holes 27 in pipe 12.
Patent GB-160188-A (GB)
Title: Improvements in or relating to fireworks
IPC: F42B4/00
Filed: 1919-06-16
Abstract: 160,188. Brock, A. June 16, 1919. Paper tubes for fireworks are made with an inset reinforcement b of plain or perforated sheet metal, or wire gauze, interleaved with paper. An asbestos lining may be added. Reference has been directed by the Comptroller to Specification 3873/78, [Class 9, Ammu. nition &c.].
Patent GB-154139-A (GB)
Title: Improved melting pot or furnace particularly for stereotyping metal
IPC: B41D3/00
Filed: 1920-06-03
Abstract: 154,139. Winkler, C. June 3, 1920. Stereotype.-In a melting-pot furnace for stereotype metal &c., adapted to supply more than one mould, the common framework and casing i carries two or more independently operable units each comprising a melting-pot and a furnace chamber so that repairs to one pot do not involve the stoppage of the whole apparatus, and means are provided whereby the waste heat from one furnace may be used to preliminarily heat the melting- pot attached to another furnace for later operation. The furnace chambers k, l are separated by a partition m provided with a pivoted door n which allows the waste gases from one furnace chamber to circulate around the complementary chamber, for the purpose stated above, before escaping to the outlet o, the branches of which can be closed or opened as desired. The melting-pots e, f supply molten metal to the moulds a, b through the cocks c, d. The melting-pots may be heated by gas burners in the usual way or by immersing electrical resistances in the metal in addition to being heated by the fires on the grates h, g.
Patent GB-673286-A (GB)
Title: Improvements in machine tools, such as grinding machines
IPC: B24B3/02
Filed: 1950-06-19
Abstract: 673,286. Machine framings. GOECKEL MASCHINENFABRIK GES., G. June 19, 1950 [June 18, 1949], No. 15225/50. Class 83 (iii). [Also in Group XXIII] A work-slide 16 in a machine-tool, such as a grinding-machine, is mounted on an inclined guideway so that the slide runs back away from the tool when an operation is completed.
Patent GB-563013-A (GB)
Title: Catalytic conversions
IPC: B01J8/00
Filed: 1942-10-30
Abstract: <PICT:0563013/IV/1> Spent catalyst comprising an aluminium halide and an adsorptive support such as alumina is treated with superheated steam under conditions precluding the condensation of water.  The halide is converted into anhydrous hydrogen halide, which may be added as a promoter to the substance under treatment, e.g. a hydrocarbon vapour to be isomerized.  The remaining adsorptive material is dehydrated by heat and re-impregnated with anhydrous aluminium halide.  The Figure shows an apparatus for the isomerization of butane, having three reaction chambers 15-17 of which one is on stream while two undergo regeneration.  Butane is passed through drier 13 and conversion zone 17, receiving an addition of hydrogen chloride through line 27.  The reaction products pass through cooler 30 and accumulator 31 to stripping column 34, whence a gaseous fraction of hydrogen chloride is removed to gas-holder 45 for recirculation.  The liquid product is separated in fractionator 51 into a vapour fraction containing isobutane, collected at 58, and a liquid fraction of butane which is recirculated.  Spent catalyst in conversion zone 15 is treated with superheated steam from source 71, and the hydrogen chloride evolved is passed into line 27 for use as promoter.  When water vapour begins to be present in the exit gases from converter 15, they are passed through line 84 into converter 16 to commence the regeneration thereof, the water vapour reacting with the catalyst to form hydrogen chloride.  The steam used for regeneration may be mixed with a diluent gas and may even be replaced by a current of the hydrocarbon vapour to be treated, in which case the drier 13 is cut out and the vapour is passed through a spent catalyst chamber before entering the converter which is in operation.
Patent GB-547597-A (GB)
Title: Method and apparatus for forging billets
IPC: B21K1/00
Filed: 1940-10-15
Abstract: 547,597. Billet-piercing. MUIR, W. P. Oct. 15, 1940, No. 15267. [Class 83 (iv)] In piercing a billet, e.g. in making artillery shells, in a sectional die-pot 29 provided with a movable bottom member 40 which recedes during the operation, maintaining enough back pressure on this member 40 to ensure that there is no backward extrusion. A long slender billet of square section may be placed on the member 40 and between the halves 29a, 29b of the pot 29 both halves being in the open position 29a, Fig. 2. A valve 56, Fig. 12, is operated by hand to admit oil or other pressure fluid, from a supply pipe 69, to cylinders 36 and 44 to cause pistons 35 and wedges 33 to close the halves 29a, 29b and the cylinder 44 to rise on its fixed plunger 48 thus projecting the member 40 through a guide 32, as indicated at X, Fig. 1, and drawing oil from a tank 17a, Fig. 12, through a non-return valve 701 into a cylinder 45, in which the cylinder 44 slides. A valve 81 is then operated to exhaust cylinders 23, 17c and supply pressure fluid to cylinder 17 causing the head 18 to move down and the punch 21, carried thereby, to pass through a guide 28 and pierce the billet, which is thus expanded to fill the die pot, the member 40 receding, against a back pressure in the cylinder 45, determined by an adjustable relief valve 75. The valve 81 is then returned to original position so as to admit pressure fluid to cylinders 23, 17c and exhaust the cylinder 17 so as to strip the punch 21. The valve 58 is then returned to the position shown so as to admit pressure fluid to the opposite ends of the cylinders 36 and thus open the die-pot by chains 43, Fig. 2. Three punches 21 may be carried by means of a turret 19, Fig. 1, so that a fresh punch may be brought into operative position after each stroke, the punches not in use entering tubes 26, Fig. 2, supplied with cooling water from a tank 27. In a modification the press is arranged horizontally, the die half 29b, Fig. 14, alone being movable and the member 40 being used to transfer the billet from a conveyer A on to the fixed die-half 29a. After the punch 21 has been stripped and the die-half 29b raised, the punch may be moved to the right to force the pierced billet on to the conveyer. The die-pot when open may be cleaned by an air jet.
Patent GB-740777-A (GB)
Title: Improvements in or relating to multi-part props more particularly pit-props
IPC: E21D15/28
Filed: 1953-06-03
Abstract: 740,777. Pit props. EGGEMANN, K. W., and CAMPENHAUSEN, E. VON, [trading as SWARZ KOMM.-GES., H.]. June 3, 1953 [June 5, 1952], No. 15278/53. Class 20(2). A telescopic pit prop comprises a number of independently operating clamps 12, Fig. 5, disposed along the prop. Each clamp comprises a collar in which the inner prop part 11 is clamped by a shoe 17 and a wedge 18. In Fig. 5 a drag wedge 19 is also clamped against the member 11 by two independently operating clamps 12. In Fig. 7 laminae 21 secured to the bottom of the inner prop part 20 are clamped by clamps 14 against bridge plates 22 bearing against the inner prop part 20 and resting on bridge members 23 fixed to the outer prop part 24. The inner prop part may taper. The shoes of adjacent clamps may engage one another by tongues having convex surfaces. The clamping collars may be welded together on the opposite side of the prop to the wedges 18.
Patent GB-1035936-A (GB)
Title: Control system for an hydraulic motor
Inventor: MOONEY JOSEPH PARK
IPC: G05D16/10
Filed: 1962-04-19
Abstract: 1,035,936. Fluid pressure servomotor control systems. ENGLISH ELECTRIC CO. Ltd. April 19, 1963 [April 19, 1962], No. 15284/62. Heading G3P. A control system for maintaining the speed of a hydraulic motor constant irrespective of load comprises a pump 13 which delivers fluid pressure to a speed governor controlled valve 10 which controls the supply of fluid pressure through lines 16, 18 to a spring loaded piston device 11 which actuates the speed adjustment mechanism, such as a cam or swashplate of the motor. The pressure in line 18 is also supplied through line 21 to act on a piston 24, the opposite side of the piston being subjected to pump outlet pressure, and the piston 22 controls a by-pass 25 from the pump to maintain the pressure drop across the valve 10 constant. The line 16 also supplies a conduit 12, through a restriction 17, which supplies the motor and also acts on the underside of the piston device 11 and the valve 10. The arrangement provides constant speed irrespective of load on the motor and compensates for the droop characteristic of the governor. In a modification, the part 15 is enlarged so that the valve 10 controls the flow to the line 16 and also flow from the line 16 to below the valve 10.
Patent GB-553675-A (GB)
Title: Manufacture of substituted adipic acids
IPC: C25B3/25
Filed: 1941-11-28
Abstract: 553,675. Substituted adipic acids. WILSON, C. L., WILSON, K. B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 28, 1941, No. 15333. [Class 41] 2:3-Diarylapic acids or their esters are prepared by subjecting cinnamic acid or a nuclear substituted cinnamic acid or their esters to electrolytic reduction at a mercury cathode in a medium containing a mineral acid. The anode, which may be lead &c. is enclosed in a porous pot, the anolyte being a solution, for instance, of hydrochlorine, sulphuric or phosphoric acid. The catholyte, which is agitated, consists of the cinnamic acid or ester in solution in an organic solvent mixible with water, such as methyl or ethyl alcohol, ethylene glycol monoethyl ether, acetone, or glacial acetic acid, together with diluted mineral acid as used for the anolyte. A current density of .03 to .07 amperes per square cm. of cathode surface is employed. Examples describing the preparation of diphenyl, di-ocyanophenyl, dichloro-diphenyl, and dimethoxydiphenyl-adipic acids are given.
Patent GB-772298-A (GB)
Title: Compression ignition internal combustion engines
Inventor: GILBERT RONALD ALBERT
IPC: F02B3/00
Filed: 1954-05-26
Abstract: 772,298. Heating charge ; supercharging. NAPIER & SON, Ltd., D. May 26, 1955 [May 26, 1954], No. 15495/54. Classes 7 (2) and 7 (3). In a compression-ignition engine 10 provided with a supercharger 12, the overall compression ratio of the supercharger and engine being sufficiently normal to provide ignition, whilst the compression ratio of the engine itself is insufficient to provide ignition if supplied with air at atmospheric temperatures and pressures, a control mechanism 18 and fuel burner are provided for automatically introducing fuel and burning it in the air before admission to the engine cylinder if the air temperature before admission is such that after compression it would still be below that necessary to effect ignition. The exhaust from the engine 10 drives a turbine 11 coupled to the supercharger 12 which turbo-compressor may be connected to the engine crank-shaft; the individual compression ratios of the supercharger and engine may be low whilst the overall ratio of the two may be high. A duct 13 between the supercharger and engine is provided with the fuel burner supplied with fuel via the control mechanism 18 ; the fuel may be the same as that used in the engine or a gaseous fuel such as propane, and the burner may be disposed in a special combustion chamber, not shown. The apparatus may include means, not shown, for automatically igniting the fuel. A temperature responsive element 20 which is arranged either downstream, as shown, or upstream of the burner, is connected by a lostmotion device with the fuel control 18 so that the fuel is shut off when the temperature at the element 20 is appreciably greater than that at which the fuel is automatically admitted. The fuel control 18 may also be linked with the engine governor 21, whilst an over-ride device, not shown, is associated therewith to prevent fuel being supplied when the engine is inoperative. Specifications 608,324, 703,165 and 748,923 are referred to.
Patent GB-702831-A (GB)
Title: Apparatus for textile-printing
IPC: B41F15/08
Filed: 1950-06-21
Abstract: 702,831. Stencilling-apparatus. LANGSETH, P. June 21, 1950 [July 2, 1949 ; Feb. 27, 1950], No. 15527/50. Class 100 (2) Apparatus for stencilling textile fabrics, of the kind wherein a printing table supports the fabric, and the stencil is placed thereon, printing ink being then applied to the upper surface of the stencil by means of an inked brush or other suitable means, comprises a printing table consisting of a rotatably mounted body having two or more plane surfaces symmetrically arranged about the axis of rotation, said plane surfaces constituting impression faces which are arranged so as to be brought into printing position successively by rotation of said body, and a stencil frame supported for movement laterally to a position spaced above the table and downwardly to position the stencil on the fabric supported on the table. The printmg table 1, Fig. 1, has three impression faces, and is rotatably mounted to bring each face into printing position in succession, thereby feeding a textile web to print on each section of the web in succession. The stencil frame 7 is moved into printing position along rails 6, being located by guide means 11 and projections 10, and lowered into contact with the table by mechanism 9. For multicolour work, one such frame is used for each colour. In another form, Fig. 2, the table 20 is pentagonal, and the frame 22 is carried on arms 26, to which are pivoted V-shaped members 25 pivotally supporting the frame by means of arms 24. The frame is moved into contact with the table by means of a handle 31, located by projections 34, 35 engaging guides 36, 37 in a stationary frame 38, and held down by a pawl 39 and stud 40. Springs 33 act as counterweights for the frame 22. For multi-colour work, several frames 22 are angularly spaced around a hub 30 rotatable on a vertical axis to bring any desired frame into position above the table. The arms 26 are fastened to a cross-piece 29, and either the cross-piece 29 or one of the arms 26 may be arranged in a plane intersecting the axis of rotation of the hub 30.
Patent GB-370717-A (GB)
Title: Improvements in and relating to apparatus for filing papers
IPC: B42F17/18
Filed: 1931-05-27
Abstract: 370,717. Filing papers. GROVES, W. W., 30, Southampton Buildings, London. -(Postindex Co., Inc. ; Jones Avenue, Jamestown, New York, U.S.A.) May 27, 1931, No. 15542. [Class 146 (i).] Folded sheets 19, Fig. 2, filed in stepped formation on a panel 11 are locked in position by a bar 24 which engages the sheet-holders 17 by a movement transversely thereof. Each holder 17 consists of a resilient wire passing through perforations 20, Fig. 10, into the fold of the sheet and having flattened cylinders 18 fixed to its end adapted to slide in channels 14 at the sides of the panel 11. A cranked part 25 formed centrally of the holder projects towards the bottom of the panel 11 and the bar 24 slides over all such parts to lock the cards in their assembled relationship. A sloping support 22 is riveted to the panel 11 at one end, and the bar 24 is slid into position through a slot 28, Fig. 3, in the adjacent end of the panel until its end engages beneath a flange 16 at the opposite end. Channel-pieces 33 fixed to the panel serve as guides for the bar 24. The end of the bar 24 projects sufficiently from the slot 28 for it to be engaged by the thumb for removing the bar. A key-operated lock 35 is secured to the panel 11 within the sloping support 22, and its bolt 39 engages a notch 41 in the bar 24 to lock the bar to the panel. A plate 21 serving as a writing support is hinged to the lower end of the panel.
Patent GB-1219153-A (GB)
Title: A releasing assembly in a well packer having a mandrel
IPC: E21B33/1295
Filed: 1968-06-13
Abstract: 1,219,153. Well packers. CAMCO, Inc. 13 June, 1968 [30 June, 1967], No. 15679/69. Divided out of 1,219,152. Heading E1F. The subject matter of this Specification is identical with that described in Specification 1,219,152, but the claims relate to the releasing assembly for the wall packer.