baber/WOPTO huggingface dataset:
Patent GB-371926-A (GB)
Title: Improvements in or relating to means for dissipating heat generated in electrical apparatus immersed in liquid
IPC: H01F27/12
Filed: 1931-01-27
Abstract: 371,926. Electric-transformer and like tanks with radiator elements. BRITISH ELECTRIC TRANSFORMER CO., Ltd. and CLARKE, L., Hayes, Middlesex. Jan. 27, 1931, No. 2703. [Classes 29 and 64 (iii).] Tanks 4 containing oil-immersed electrical apparatus, e.g. transformers, condensers, or oil switches, are provided with one or more detachable radiator units each comprising an upper header carrying an expansion chamber 1 and connected by air-cooled tubes 5, 6 to lower headers 7, 8, the headers being connected to the tank by oil-circulation pipes 3, 9. The expansion chamber is connected through a pipe 16, Fig. 2, and a breathing device 17 with the atmosphere and with the upper header through a pipe 12. The underside of the base 11, which forms a sump from which water can be drained, contacts with the oil in the header which is provided with air vents for use when filling the radiator. The expansion chamber may also be connected to the oil pipe 3. The tubes, which may be formed with either spiral or longitudinal cooling ribs and of elliptical or star-shaped cross section, are cooled by a draught produced by a fan 20 which forces the cooling air through a duct 20a into the space between the tubes 5, 6. In a modification, the fan forces the cooling-air into ducts 22, 23, Fig. 6, enclosing the lower ends of the tubes 5, 6 which may also be enclosed by plates 24. In another arrangement, the expansion chamber 1, Fig. 12, is hingedly connected to the upper ends of angle-iron members 22, and to independent upper headers 2, 2a. The base of the expansion chamber forms sumps 2b, 2c and the oil is circulated by a pump. In a further modification, the cooling tubes 5, Fig. 14, are connected to annular headers 3a, 7 and form a central air flue. The tubes may, in all cases, be cooled by water sprays instead of or in addition to the air cooling.
Patent GB-1115146-A (GB)
Title: Improvements in sealed capacitor
Inventor: STEELE JACK EDWIN
IPC: H01G9/12
Filed: 1967-01-18
Abstract: 1,115,146. Electrolytic capacitors. GENERAL ELECTRIC CO. 18 Jan., 1967 [7 March, 1966], No. 2770/67. Heading H1M. Cover member 11 sealing casing 2 enclosing electrolytic capacitor 3 is sufficiently flexible to conform to the shape of the casing, a flange 15 of which is rolled over the upper acute-angled peripheral edge of the cover member to hold it between the flange and a bead 13 on the casing wall. The tendency of the sharp edge, rounded by conforming to the shape of the rolled flange, to return to its original pointed shape provides a hermetic seal. The cover member is preferably of injection-moulded polypropylene, and it may include a venting means 29 comprising a recess which leaves a thin-walled portion which will rupture when a predetermined pressure is exceeded.
Patent GB-386134-A (GB)
Title: Improvements relating to combing machines
IPC: D01G19/10
Filed: 1932-01-30
Abstract: 386,134. Combing-machines. WALKER, H., Manor House, Scholes, near Cleckheaton, Yorkshire. Jan. 30, 1932, No. 2831. [Class 120 (i).] In a Heilmann or like combing-machine the drum segment A, Fig. 1, is wholly or partly covered with card clothing B the teeth of which are formed with hardened and tempered conical needle points. The teeth may be formed with or without knee bend and are carried by a flexible foundation b which is secured to the segment A by plates bl and screws b2. One or more rows of finishing pins C, C<1> are mounted at the rear end of the segment A, the pins being fixed in plates c, c<1> and mounted so that the intermediate pins C are equally spaced between the teeth B of the card clothing and the pins C<1>. The inner plate c is secured by screws c<2> which pass through slots c<3> in the plate c, the heads being accommodated in slots c<6> in the plate c<1>. The outer plate c<1> is secured by screws c<4> passing through slots c<5>, c<3> in the outer and inner plates respectively.
Patent GB-548035-A (GB)
Title: Improvements in and relating to luminairs
IPC: F21S8/00
Filed: 1942-03-05
Abstract: 548,035. Luminairs. HOLOPHANE, Ltd. (Holophane Co., Inc.). March 5, 1942, No. 2911. [Classes 75 (ii) and 75 (iv)]  A luminair for street or highway lighting comprises an inverted reflective trough 11 consisting of two specular parabolic cylindrical surfaces having a common focus, a sodium, mercury of like lamp 10 arranged at this focus, and two plates 12 of flat pressed glass or moulded plastic material formed with obliquely extending reflective prisms 23 which elevate the emergent beams to the desired angles and deviate them horizontally in the same direction so that their axes are not opposite to one another. The cutoff lines 15 extending from the centre of the source to the upper prisms of the plates 12 and the axes of the parabolic cylinders forming the trough 11 may be at approximately 65 degrees with the nadir and the prisms may be shaped to elevate the emergent rays 25 to approximately 75 degrees to the nadir. In another construction the reflector has parabolic side walls connected by a horizontal upper wall provided with a white diffusing finish. In a construction shown in Fig 7 parabolic side reflectors 40 are spaced away from an upper reflector 41 to provide a ventilating passage 42 'and a central fluted light diffusing plate 44 is arranged between side plates 43 formed with refracting prisms.
Patent GB-1430692-A (GB)
Title: Method of producing grain oriented electrical steel sheet
IPC: H01F1/18
Filed: 1974-01-22
Abstract: 1430692 Making grain-oriented electrical steel NIPPON STEEL CORP 22 Jan 1974 [22 Jan 1973] 02930/74 Heading B3A A method of making grain-oriented electrical steel sheet comprises providing an ingot of steel containing 2À5-4À0% Si, which is hot rolled, annealed, cold rolled to final thickness, decarburization annealed, finish annealed to complete secondary recrystallization in the steel, surface treated to remove any compounds formed thereon and polished to a mirror finish. The ingots are made by melting down and refining silicon steel in any suitable furnace and either casting it into ingots or breaking down the cast steel into slabs. The ingot is hot rolled into a coil and is of 2-3 mm. thickness. The coil is pickled, annealed and cold rolled to final thickness in one or more stages. The decarburization annealing is effected with an annealing separating agent, e.g. inactive MgO, preferably obtained by high temperature calcining to prevent the formation of a glass like film on the rolled strip. Finish annealing may be performed in an atmosphere of dry hydrogen, dry decomposed ammonia or in a vacuum. The surface treatment comprises immersion in strong acid, e.g. sulphuric, nitric or hydrofluoric acids, and the final polishing is performed preferably either chemically or electrolytically. A significant improvement in the watt-loss characteristics of the steel over steels made by prior art methods results from the mirror finish obtained by polishing, but unless the polished surface is plated its effect is soon lost as rust beings to form. A thin layer, i.e. not more than 5 Á, is deposited of, for example, zinc, tin, copper or nickel and finally an insulating phosphate layer is applied to the plating.
Patent GB-340825-A (GB)
Title: Improvements in or relating to jacks for knitting machines
IPC: D04B15/06
Filed: 1930-01-28
Abstract: 340,825. Knitting-machines. WELFFENS, E. J., 490, Wilmslow Road. Fallow field, Manchester. Jan. 28, 1930, Ko. 2942. [Class 74 (ii).] Warp machines. -A built-up jack or instrument for assisting in drawing loops, laying wefts, retaining the fabric in position, separating and guiding warps or for other purposes consists of five laminae riveted, sweated or otherwise secured together. The central piece 2 is flanked by a pair of members 1 and these again by pairs of members 3. The slots 5, 6 are for reception of solder. The steps 14 permit the jacks &c. to be positioned by clamping-plates each of which retains a number of jacks in position without special slots being provided. Jacks may be made of single pieces of metal to the same external shape.
Patent GB-764337-A (GB)
Title: Improvements relating to the treatment of materials by electronic bombardment
Inventor: CROWLEY-MILLING MICHAEL CROWLE
IPC: A61L2/08
Filed: 1954-02-01
Abstract: 764,337. Discharge apparatus. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 26, 1954 [Feb. 1, 1954], No. 2950/54. Class 39(1). An electron beam for the coradiation of materials is produced in an enclosed chamber, passes out through an electron permeable window and is thus reflected laterally by a magnetic field so as to traverse a curved path and is spread laterally to give it an elongated cross section. The beam from the metal foil window 2 of a linear accelerator a Cetatron or a Van de Graeff generator 1 passes between its pole pieces 8 of a permanent magnet or electromagnet. The pole pieces are splayed and as in Fig. 4, so that the beam is elongated in the plane of curvature producing a more even distribution of intensity in the beam. A second metal foil may be inserted to scatter the beam before coradations material on a conveyer belt. In Fig. 6, the pole pieces are elongated at 11 and so shaped that the beam is split into two components 12, 13, the component 12 bombarding one side of material target 14 and the other component 13 being deflected through 180 degrees by further poles 15 to bombard the other side of material 4. Pole pieces 8 may be shaped or material of graded reluctance inserted to render the beam component 13 non- uniform.
Patent GB-123096-A (GB)
Title: Improvements in or relating to Iron Cores for Electric Transformers, Inductances, and the like.
Inventor: MOLLERHOJ JOHANNES SOERENSEN
IPC: H01F3/10
Filed: 1919-02-06
Abstract: 123,096. Mollerhoj, J. S. Feb. 6, 1918, [Convention date]. Transformers.-Cores for induction coils, Pupin coils, and the like for use with weak alternating- current circuits such as telephone circuits, are composed of elements formed as closed. curves and consisting of layers of thin iron wire or plate, most of the elements being formed with one or more partial slots or cuttings which are displaced in relation to the slots of neighbouring elements. The elements may be in the form of rings, Figs. 6, 9, 10, or in cylindrical form, Fig. 17. The slots may be arranged obliquely as shown in Fig. 9. Several slots may be cut in each element. A core built up of circular elements is shown in Fig. 15. In order to prevent spreading of the magnetic fields the top and bottom elements are left uncut, and uncut cylindrical elements may be placed inside and outside the core in cases where the slots extend to the inner or outer circumference of the ring elements. A core built up of cylindrical elements is shown in Fig. 19, the inner and outer elements being left uncut. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of elements with slots extending completely across them, as shown in Fig. 11 (Cancelled) and Fig. 21 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-580997-A (GB)
Title: Improvements in segmental packing rings
IPC: F16J15/28
Filed: 1945-02-06
Abstract: 580,997. Stuffing-box packing. DEHN,F.B. (United States Metallic Packing Co.). Feb. 6, 1945, No. 2997. [Class 122 (v)] A segmental soft metal packing ring comprises segments 1, 2, each with a concave end 7 and a convex end 6, there being sliding contact between the convex surface of one segment and the concave surface of the adjacent segment; the ring has a conical portion 5, and a cylindrical portion 4 provided with a transverse slot 12 into which fits one end of an oblong portion of a sheet metal shim 10, formed also with a tapering facing portion overlying the concave surface 7.
Patent GB-391272-A (GB)
Title: Method of making lead pencils and pencils containing other marking material
IPC: B43K19/18
Filed: 1932-02-01
Abstract: 391,272. Pencils. EAGLE PENCIL CO., 703, East 13th Street, New York, U.S.A.-(Assignees of Gonzalez, N. ; 533, West 112th Street, New York, U.S.A.) Feb. 1, 1932, No. 3010. Convention date, March 27, 1931. [Class 146 (iii).] A method of treating pencil leads or crayons to provide a surface to which glues and cements will adhere comprises treating the leads &c. to remove surface grease and then coating the surfaces by precipitation or otherwise with an insoluble material which will resist penetration by grease. The leads &c. may be immersed in sulphuric acid to destroy the surface grease, washed in water, immersed in dilute sulphuric acid and, while the acid is adhering to them, immersed in a solution containing soluble salts, such as calcium chloride, which by reaction with the acid will precipitate in an insoluble form. The leads &c. may be transferred directly from the first acid bath to the salt solution. The surfaces of the leads &c. may be mechanically treated to remove surface grease and then subjected to the precipitating treatment.
Patent GB-193642-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/26
Filed: 1922-02-02
Abstract: 193,642. Blackburn & Sons, Ltd., G., and Widdowson, T. Feb. 2, 1922. Circular machines.- The cranked radial instruments A of striping or patterning attachments described in Specification 12552/08 are hooked at the ends B so that they will at certain times engage with and retain the lower ends of the cooperating dependent thread guides D in the correct position when the return movement of the latter is delayed, and prevent accidental angular displacement. Specification 192,222 is referred to.
Patent GB-1027085-A (GB)
Title: Air conditioning apparatus
Inventor: FREAN FREDERICK CHARLES
IPC: F24F1/0284
Filed: 1964-01-24
Abstract: 1,027,085. Unit air conditioners. SCIENTAIRE Ltd. March 26, 1965 [Jan. 24, 1964], No. 3100/64. Heading F4V. Air conditioning apparatus is compactly housed in a casing 2 carried on a rectangular chassis 1 formed from girders. Fresh air and recirculated air enters at 5 and 6 respectively under control of damper louvres 7 operated by means 8, commingle, pass through a filter 9 consisting of trays 10 fitted with detachable filter cloths 11, a preheater 12, a wash tray 16, between angularly disposed blades 20 and a set of contra-rotatable dampers 21 operated by means 22, and through a reheater 23 before discharge through an outlet 27 adjacent the fresh air inlet 5. Airflow is maintained by a fan 26, close to the outlet 27, driven by an electromotor 24. The wash tray 16 is sprayed by water from nozzles 17, the water being pumped by a pump 4A from a sump 3 situated in the chassis and provided with a float-controlled valve 4. The preheater 12 and reheater 23 are fed with any convenient heated medium. Access to the washing region and motor and fan is provided by doors 18 and 30 in the casing 2, the door 18 having a transparent panel 19. Switches 28, 29 control the fan 26 and pump 4A.
Patent GB-973775-A (GB)
Title: Improved closure members for trays of exchange columns
IPC: F16K15/02
Filed: 1962-01-26
Abstract: 973,775. Gas-liquid contact apparatus. S.P.E.I. CHIM.-REUNION DES ANCIENS ETABLISSEMENTS BARBET, EGROT & GRANGE, PINGRIS & MOLLET-FONTAINE. Jan. 26, 1962 [Jan. 27, 1961; Jan. 11, 1962], No. 3111/62. Heading B 1 R. In fluid contact trays a closure member which is movable between a first position wherein it closes or partly closes the aperture in the tray and a second position in which fluid can readily pass through the aperture comprises a valve 2, Figs. 1 and 2, and a guide ring 1 fixed to, or integral with, the valve and adapted to extend through the aperture 3, the guide ring being provided around its periphery with a series of slotted perforations 5 for dispersing fluid passing up through the aperture in a more dense fluid carried by the tray. The ring may be formed integrally with the valve, e.g. Fig. 7, where there is a downwardly convergent portion 12a, 15a of the closure member connecting the periphery of the valve with the top of the ring. Stops may be provided to restrict movement of the member between the first and second positions, and may be metal strips 7, or bent portions .of the guide ring. The valve part of the closure member may have tooth-like perforations 2a on the periphery, and perforations 6 in the centre. The closure member may be made from stainless steel or work-hardened copper.
Patent GB-851579-A (GB)
Title: Improvements in or relating to insect control compositions
IPC: A01N37/00
Filed: 1959-01-29
Abstract: A composition for controlling insects comprises by weight 2 to 99,5% of di-n-butyl succinate as repellant and 98 to 0,5% of an insecticide selected from one of the four following groups: (a) oxoallyl cyclopentenyl esters or other esters of mono- and di-chyrsanthemum carboxylic acids; (b) thiocyanate insecticides; (c) organic phosphorus insecticides; and (d) chlorinated hydrocarbon insecticides.  The composition has synergistic characteristics. Insecticides specified are group (a) pyrethrum, allethrin and cyclethrin; group (b) Lethane 384 and Thanite; groups (c) Korlan, Diazinon and "Malathion" (Registered Trade Mark); and group (d) methoxychlor, D.D.T. and "Perthane" (Registered Trade Mark).  The preparation may be made up as an oil concentrate or emulsion or with any suitable vehicle, carrier or diluent.
Patent GB-225738-A (GB)
Title: Improvements in or relating to machines for harvesting beet or the like root crops
IPC: A01D27/02
Filed: 1924-02-07
Abstract: 225,738. Maschinenfabrik Walter & Kuffer, and Walter, A. Feb. 7, 1924. No Patent granted (Sealing fee not paid). Crops, root, digging and topping machines for. - Beets, or like root crops, are topped by a rotary topping knife that also removes the cut tops from the machine and are then lifted by a share followed by a rotating member to eject the beets. The rotary topping knife 9 is mounted upon an inclined shaft 10 that is driven through chain gearing 13 from a sprocket 15 carried by the main axle 14. A forkshaped feeler 16, positioned in front of the knife, automatically adjusts the line of the cut by means of a headpiece 2 carrying cams 22 between which a roller 23 connected to the shaft 10 rides. The cams 22 may be adjustable or may be exchangeable. The cutting blade has a sleeve shaped hub 24 provided with a guard 26 to prevent leaves from being entangled round the shaft. A scraper and a wiper for the cutting blade and the guard are carried by a rod 28. The topping device is supported by a spring 16<a>. The roots are lifted by a share 30 having rearwardly projecting rods 47 and carried by a beam 32 secured by a pivot 31 to the main frame. The share is adapted to be raised by a rack and pinion 34, 35 operated by a shaft 36 arranged to be driven from a worm shaft operated by a hand wheel 41. A clutch 37 is interposed between the worm gear and the shaft 36 to enable the share to adjust itself freely to the correct depth when lowered. A control rope 44 is secured to the shaft 36 and is provided with indications to mark the position of the share relatively to the soil. The roots after being lifted by the share are engaged by the rods of an ejector wheel 48 mounted on a shaft 49 and adapted to be raised and lowered by an adjustable rope 51 secured to the shaft 36. The ejected roots are thrown against a catching device 52 pivoted at 53 and adapted to be raised when not in use. The device 52 has a bent over top portion and rear portion 55 and is also provided with a plough-like projection 56 to cut a small furrow into which the roots mav fall. A blade is fitted on the device 52 to push aside the cut-off tops. In a modification for dealing with several rows of roots the rotary cutters are arranged in pairs and the cut-off tops pass on to conveyer discs whence they are directed to a endless conveyer that delivers them from the machine. In two-row machines the endless conveyer may be omitted.
Patent GB-662346-A (GB)
Title: Improvements in or relating to ammonium nitrate explosives
IPC: C06B45/00
Filed: 1949-02-07
Abstract: 662,346. Ammonium nitrate explosives. ATLAS POWDER CO. Feb. 7, 1949. [Feb. 26, 1948] No. 3303/49. Class 9 (ii). An explosive composition comprises crystallized granules of ammonium nitrate having from 4 to 11 per cent, based on the ammonium nitrate, of potassium nitrate distributed in solid solution throughout the structure of the ammonium nitrate, the granules being of a size such as to pass a U.S.S. No. 8 screen and be held to the extent of at least 70 per cent on a U.S.S. No. 70 screen, and the granules being sensitized with up to 20 per cent of an explosive liquid nitric ester, e.g. nitroglycerine, with or without nitrosugars or nitroglycols. The potassium nitrate may be added to the evaporating equipment before addition of the ammonium nitrate or to the molten ammonium nitrate in the graining kettle after evaporation ; grain modifying salts such as ammonium chloride and ammonium sulphate may be added. Alternatively the ammonium nitrate-potassium nitrate mixture may be prepared by nitric acid neutralization of a mixture of ammonia and potassium hydrooxide or carbonate. Other ingredients are sodium nitrate, cornflour, apricot pit pulp, wood pulp, bagasse, and chalk.
Patent GB-1212916-A (GB)
Title: Improved child's toy
Inventor: DAY DAVID
IPC: A63H33/00
Filed: 1968-01-22
Abstract: 1,212,916. A chain toy. HILARY PAGE "SENSIBLE" TOYS Ltd. 22 Jan., 1969 [22 Jan., 1968], No. 3346/68. Heading A6S. A childs toy comprises a number of ring-like components of bar material of various contours but of identical cross-sectional outline, including at least one endless ring and at least two gapped rings which gap of a ring is dimensioned to accept, with a small clearance, the cross-section of any other ring; thereby components can be strung together as a chain. The components may be of 'H' cross-section with the web in the centre-plane of the components and the ends of the bar blanked of by a cross wall, at the gaps. The components may be of synthetic plastics material the specified contours being circular, ovoid, triangular, rectangular and S-shaped.
Patent GB-1424031-A (GB)
Title: Cathode ray tubes for multicolour display systems and to such  display systems
IPC: H04N9/27
Filed: 1973-01-23
Abstract: 1424031 Colour television FERRANTI Ltd 22 Jan 1974 [13 Jan 1973] 3371/73 Heading H4F A colour display system for producing a display in a plurality, n, of colours (in the embodiment shown n=2: read and green) uses a cathode-ray tube 10 having n cathodes 16, 16<SP>1</SP> producing n electron beams for impingement on a screen 17 having n different coloured phosphors, different levels of E.H.T. voltage supplied from a generator 24 to a contact 23 causing the n electron beams to have energies in different energy ranges to cause light to be emitted from different phosphors, a switch 30 being operated at the end of each line period to consecutively change the E.H.T. voltage fed to contact 23 between n different levels; a switch 27 receiving n colour signals is operated in synchronism with switch 30 and supplies signals to storage means 15 having (n - 1) delay lines 32 having respective delays of 1, 2 ... (n - 1) line periods. The n electron beams thus scan, at any instant, n adjacent lines in the same colour, each line being successively scanned by the n electron beams in the n colours. Switches 28 and 29, ganged with switches 27 and 30, are provided for focusing control means 25 and deflection control means 26. The screen 17 may be formed of superimposed layers of the different phosphors separated by electrically insulating layers or of particles formed of superimposed layers of the different phosphors separated by electrically insulating layers; alternatively particles of the different phosphors coated with different thicknesses of insulating material may be used.