baber/WOPTO huggingface dataset:
Patent GB-810541-A (GB)
Title: Recovery of plutonium
IPC: C01G56/00
Filed: 1945-12-04
Abstract: Plutonium is recovered from aqueous solution by precipitation as a complex plutonyl acetate of sodium or lithium and divalent cobalt, copper, manganese, nickel, magnesium, zinc, or cadmium. The complex may be precipitated in the presence of the corresponding complex uranyl acetate as carrier, plutonium being separated from uranium by redissolving the precipitate, reducing the plutonium, and reprecipitating the uranium as complex acetate, plutonium remaining in solution.  The aqueous solution treated may be obtained by dissolving neutron-irradiated uranium and oxidizing the plutonium with dichromate or ceric ions.  Suitable agents for reducing the plutonium are sulphur dioxide and hydrogen peroxide.  In an example, sodium acetate and magnesium acetate are added to an oxidized solution of neutron-irradiated uranyl nitrate; the precipitate, containing uranium and plutonium, is separated from the filtrate which contains fission products, washed, dissolved in nitric acid, and reduced with sodium bisulphite; sodium and magnesium acetates are again added, sodium magnesium uranyl acetate being precipitated and plutonium remaining in solution.  The solution is oxidized with potassium dichromate, uranium acetate added, and the precipitation of uranium and plutonium repeated.  Before separation according to the invention, the solution may be reduced and uranium precipitated as sodium magnesium uranyl acetate.  The Specification as open to inspection under Sect. 91 describes also dissolving the plutonium concentrate in nitric acid, reducing with sulphur dioxide, and precipitating lanthanum fluoride which carries down plutonium.  The Specification also describes the separation of plutonium and neptunium by dissolving irradiated uranium in nitric acid, reduction of plutonium and neptunium with sulphur dioxide, selective oxidation of the neptunium with potassium bromate, and precipitation of neptunium as complex acetate, or precipitation of plutonium as chosphate.  Reference is also made to plutonium salts of propionic, butyric, acrylic, chloracetic, methacrylic and propiolic acids, e.g. sodium plutonyl chloracetate or propionate, sodium magnesium plutonyl chloracetate or propionate, and plutonyl or plutonous chloracetate. This subject matter does not appear in the Specification as accepted.
Patent GB-164283-A (GB)
Title: Progressive and reversible change-speed mechanism
IPC: F16H15/18
Filed: 1920-11-20
Abstract: 164,283. Gherassimoff, N. Nov. 20,1920. VariabLe-speed gearing; clutches. - Friction gearing of the kind comprising a cone c, Figs. 1 and 2, engaged by rollers f , f<1> movable upon shafts d, e parallel to the generating lines of the cone is operated by a lever i, which moves the rollers towards and from the cone and also along the shafts d, e. The shafts d, e, which are driven through bevel gears d<2>, e<2> from a driving-shaft a, are pivoted about their inner ends d<1>, e<1> and wards by springs c<2> acting on snugs a<10>. When the rollers f, , f<1> are slid into the plane of the clutch, these sectors are thrust inwards two at a time so that claws a<9> on their inner sides engage recesses a<4> in a clutch member a<3> secured to the shaft a.
Patent GB-1074647-A (GB)
Title: Improvement in or relating to a cementing press for textile pieces
IPC: D06F71/18
Filed: 1965-08-02
Abstract: 1,074,647. Shirts and blouses. KANNEGIESSER & CO. MASCHINENFABRIK G.m.b.H. Aug. 2, 1965 [Sept. 18, 1964], No. 32929/65. Heading A3V. [Also in Division B5] A blouse or shirt 28 has a textile piece 27 cemented to it by a thermoplastic adhesive, the shirt being supported on an elastic counter pressure body 25 which is expanded and brought into contact with a shaped press plate 29.
Patent GB-629852-A (GB)
Title: Improvements in the method of manufacturing vessels such as kettles, teapots and thelike
IPC: B21D51/22
Filed: 1947-12-15
Abstract: 629,852. Drawn hollow-ware. WHITE BROS. & JACOBS, Ltd., and WHITE, F. Dec. 15, 1947, No. 33051. [Class 66] [Also in Group XXII] The body portions of kettles, teapots and the like are made of aluminium or copper or other malleable metal of a thickness between 0.04 and 0.08 inch by drawing a blank to cylindrical form and then pressing between dies to close in the open end to a curved form, as shown, terminating at a central opening 24 not less than half the diameter of the blank.
Patent GB-613437-A (GB)
Title: Device for use when studying musical scales
IPC: G10G1/02
Filed: 1945-12-07
Abstract: 613,437. Music. BROTHERHOOD, J. VAN S. Dec. 7, 1945, No. 33097. [Class 88 (ii)] A device for use in studying musical scales consists in one part such as a disc or ring 1, Fig. 1, divided into nineteen spaces 5 to accommodate the symbols essential to represent the notes of the whole group of major and minor scales and another part, Fig. 3, for each mode, similarly divided into nineteen spaces, seven of which are apertured as at 6 to show the notes of the scale under consideration. The intervening spaces represent the characteristic intervals of the mode concerned. A separate part is provided for each mode. The first part 1 is mounted on a base 2 provided with a spindle 3. An aperture 4 on the other part fits over the spindle 3. By turning the two parts, the keynote aperture can be brought over the desired keynote on the disc 1 and the scale read from the apertures. The parts of the device may be formed of cylinders, cones, frustums of cones or other shapes.
Patent GB-840032-A (GB)
Title: Improvements in pick-up device
IPC: G01L11/00
Filed: 1956-10-30
Abstract: 840,032. Vibration detectors. BURNETT, H. J. Oct. 30, 1956, No. 33103/56. Class 40 (4). A vibration detector comprises an electromagnetic transducer 10 which is supported within a casing 5 by an annular shock-absorbing member 12 and felt washers 13, 15, 17, the transducer being acoustically coupled by a frusto-conical air chamber 11 to a rigid casing base 7 which carries a vibration-conducting probe 9. As the casing is packed with soundinsulating felt washers the lower two 13, 14 of which are annular so as to provide the air chamber 11 and a transducer chamber 16, the transducer is unresponsive to air-borne noise generated by the vibratory source. The casing is closed by a threaded cover 19 and a rubber sealing washer 18, and the energy coupling through the chamber 11 may be improved by tightening the cover and thereby compressing the enclosed air. The transducer, which comprises a permanent magnet 20, coils 21 and magnetic diaphragm 22, is connected to a suitable measuring instrument, Fig. 3 (not shown), by a flexible cord 23.
Patent GB-668901-A (GB)
Title: Improvements in or relating to substantially cylindrical check valves
IPC: F16K15/14
Filed: 1949-12-28
Abstract: 668,901. Non-return valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 28, 1949 [Dec. 31, 1948], No. 33105/49. Class 135. A check valve comprises a tubular body 10 surrounded by an elastic tube 11 formed with openings 12 leaving strips 13 which overlie ports 14 in the tube. The strips 13 have a smaller radius of curvature than the tubular body so that when no fluid pressure difference exists across the valve the strips make contact with the body along their edges only. In a modification, the ports 14 and the strips are helically arranged, whilst in a further modification, the tube 10 is barrel-shaped. The Specification as open to inspection under Sect. 91 refers also to valve bodies of other than circular section, e.g. plane, elliptical, polygonal or segmental. This subject-matter does not appear in the Specification as accepted.
Patent GB-187501-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/46
Filed: 1921-12-09
Abstract: 187,501. Temple, J. E. Dec. 9, 1921. Sparking-plugs. - One of the electrodes is in the form of a loop or bend a, the plane of the loop or bend being parallel to a surface c on the other electrode. The ends of the bend may be splayed so that they may be connected to the plug body some distance apart. The loop a and surface c may be at any angle to the plug axis.
Patent GB-628603-A (GB)
Title: Improvements in paper manufacture
IPC: D21H17/67
Filed: 1946-11-01
Abstract: Highly pigmented cellulosic fibres for paper-making having most of the pigment within and the rest on and around them are made by agitating aqueous pulp with sufficient calcium chloride to exceed the dry weight of fibres and yield a calcium chloride concentration around 15 per cent or more by weight, until the fibres are hydrated, gelatinized and impregnated, then adding a soluble salt such as sodium carbonate or borate to precipitate the corresponding calcium compound as pigment.  Specification 5776/99, [Class 96], is referred to.
Patent GB-338338-A (GB)
Title: Supporting belts for personal wear
IPC: A41F11/02
Filed: 1929-10-31
Abstract: 338,338. Moore, J. V. Oct. 31, 1929. Drawings to, Specification. Hose suspenders.-A belt for supporting hose fasteners or catamenial appliances comprises a continuous band of woven elastic fabric of uniform width and having an inherent curvilinear outline so as to fit the waist snugly. The warp threads, some of which are elastic, are more closely spaced towards the bottom edge of the belt so that the fabric is of uniform weight throughout, and the ends of the belt are butted together to furnish a smooth joint.
Patent GB-487307-A (GB)
Title: Improvements in or relating to a process for the manufacture of rubber thread
Filed: 1937-12-01
Abstract: Fluted rubber thread is made by extruding an aqueous rubber dispersion into a coagulant consisting of, or containing, a rubber solvent.  Alternatively, the dispersion may be extruded into a coagulant and the thread, before coagulation is complete, treated with a solvent.  A suitable bath consists of 3 parts of concentrated acetic acid to 1 part of benzene, in which the dispersion is conveniently immersed for 30-60 se.  A heat-sensitized dispersion may be heated and treated with a solvent before gelling is complete.  A star-shaped cross-section may be obtained using a circular nozzle, the number and depth of the flutes depending on the duration of immersion in the solvent and the composition of the dispersion.
Patent GB-208008-A (GB)
Title: Improvements in or relating to flexible couplings for shafts
IPC: F16D3/72
Filed: 1922-12-05
Abstract: 208,008. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Dec. 5, 1922. Universal joints'. - In two-part flexible shaft couplings allowing universal and lateral movements, each part comprises a sleeve integrally united by a. diaphragm with a torque-transmitting member surrounding the sleeve and having a flange or other coupling-means at the end remote from the diaphragm. The coupling halves 3, 4, secured to shafts 1, 2, comprise sleeves 5 integral with diaphragms 7 of conical, disc-shaped, or curved form, these diaphragms being situated preferably near the remote ends of the sleeves and merging into torque-transmitting members 8 provided with connecting-flanges 9. The members 8 may be wholly conical, be connected to the flanges 9 by cylindrical portions, or be wholly cylindrical. Specification 179,769 is referred to.
Patent GB-643838-A (GB)
Title: Improvements in or relating to measuring devices
Inventor: BURR HARVEY
IPC: G01B11/04
Filed: 1948-12-24
Abstract: 643,838. Measuring moving materials. STANDARD TELEPHONES & CABLES, Ltd. Dec. 24, 1948, No. 33224. [Class 42 (ii)] [Also in Group XL (b)] The length of moving material, e.g. a cable, is measured by marking it in predetermined lengths and recording the number of operations of the marker. The marker comprises a pen 8 carried by a pivoted arm 6, operated by an electromagnet 4 every time a mark 9 passes under the scanning head 17, which comprises a light source 13 and a photo-cell 16. The number of marks may be recorded by a mechanical counter 19 attached to the marker and/or an impulse counter associated with the photo-cell-amplifier 18. With wallpaper or fabrics, a mark which is visible only in ultraviolet light may be used with a suitable scanning head. To compensate for inaccuracies due to change in speed of movement of the cable and delay in the amplifier circuit, the spacing of the units may be controlled by a governor driven from the draw-off capstan, or the amplifier may have a variable delay controlled by the speed of the cable. To allow for " wander " of the cable, it is passed between the rollers of a floating mounting which allows vertical and lateral, but not longitudinal movements of the scanning and marker units, Figs. 2, 3, 4 (not shown).
Patent GB-321333-A (GB)
Title: Improvements in steam superheating apparatus
IPC: F22G7/10
Filed: 1928-11-14
Abstract: 321,333. Geoghegan, E. A., and Kraemer, M. Nov. 14, 1928. Coiled-tube superheaters ; moderating superheat.-Steam is led into the inlet header C of a. coiled-tube superheater placed in the path of the gases from a boiler furnace through a vertical pipe B, which prevents pulsations between the superheater and the boiler, and boiler water is conducted into the header through a tube, E to temper the superheat. The steam main D' is connected to .the boiler steam space, by a tube F in which is a non-return valve F<1> allowing steam to flow from the main to the boiler.
Patent GB-657643-A (GB)
Title: Electrode-coating pieces for automatic arc welding and process and device for their production
IPC: B23K35/40
Filed: 1948-12-30
Abstract: 657,643. Moulding welding-electrode parts. ELIN. AKT.-GES. FUR ELEKTRISCHE INDUSTRIE. Dec. 30, 1948, No. 33506. Convention date, Jan. 9. Addition to 657,662. [Class 87 (ii)] [Also in Group XXII] Shaped flux pieces for use in building up a coating around a bare core for automatic arc welding as described in Specification 657,619, [Group XXII], are made by a modification of the process disclosed in the parent Specification and have the carrier wire, lace, tape, &c. embedded within the pieces. Two thin, preferably iron or steel, wires 6 are drawn by a winding drum through a guide 5 into the cylinder 1 of an extrusion press 2 at the same speed as the flux paste issues from the press nozzle 4 opposite the guide 5. The extruded bar is notched by a bladed wheel 8 and, when dry, the bar is broken at the incisions into a chain of connected pieces. The wires 6 are preferably near the outer back surface of the pieces. In a modification a single carrier which may be non-metallic is employed. In a further modification the press may have a plurality of nozzles 4 and guides 5.
Patent GB-313457-A (GB)
Title: Improvements in or relating to methods of and means for displaying advertising and like matter
IPC: G09F19/00
Filed: 1927-12-12
Abstract: 313,457. Martinez, N. H., (Craig, R. M.). Dec. 12, 1927. Theatrical appliances.-Theatrical, amusement, and like matter 21, 22, Fig. 3, displayed in different primary colours for viewing when illuminated bv light rays of corresponding colour is represented on a background 20 of an opaque dark neutral colour. A rotary switch A passes current to coloured lamps 23, 24 so that the whole surface is lit first by rays of one colour and then by rays of another colour. Fig. 4 shows a. number of representations 28, 28<1>, 29, 30, 30<1> on variously coloured background, at least one of which is of opaque dark neutral colour.
Patent GB-787105-A (GB)
Title: Drawing frame needle bar mechanism
IPC: D01H5/02
Filed: 1955-11-23
Abstract: 787,105. Gill drawing frames. WHITIN MACHINE WORKS. Nov. 23,1955 [Feb. 10, 1955], No. 33565/55. Class 120(1) A needle bar drawing frame as described in Specification 741,292 has the inner cam track surface formed with a relieved section adapted to free the crank members and permit rotation of the needle bars about their axes, the relieved section being located beyond the zone of withdrawal of the needles from the fibres. As shown, Fig. 5, the inner cam track surface is relieved at 74. A rotary brush 70, Fig. 1, preferably having alternating series of long and short bristles 71 and 72, is provided with its axis below those of the lower front rollers 14 and 15 and the axis 19 of the needle bar frame, and is so arranged that all of the bristles of the brush 70 sweep a portion of the path of the needles, and the short bristles 72 clear and the long bristles 71 sweep portions of the peripheries of the rollers 14 and 15. Specifications 741,292 and 741,349 are referred to.
Patent GB-668292-A (GB)
Title: Improvements in or relating to textile lubricating compositions
Filed: 1948-12-31
Abstract: A textile oil composition comprises a light mineral oil, 5 to 20 per cent of an oil soluble mahogany sulphonate and 0.5 to 3 per cent of a polyoxyalkylene derivative of a fatty acid partial ester of a polyhydric alcohol or mixtures of such materials.  The oil used may have a viscosity of 50 to 200 S.S.U. at 100 DEG F.  The mahogany sulphonate is usually added as a concentrate in mineral oil and, if desired, a mixture of mahogany sulphonate salts of various metals may be used.  In addition to the polyoxyalkylene derivative of a fatty acid partial ester of a polyhydric alcohol there may be added a small amount of a polyhydric alcohol partial ester of a fatty acid such as sorbitan mono-oleate.  The final composition may have a viscosity of 100-300 S.S.U. at 100 DEG F.  This viscosity may be adjusted by addition of an organic diluent such as ethylene glycol monobutyl ether in amounts up to 3 per cent. The composition may be used for treating woollen goods and may be readily scoured therefrom by means of an aqueous solution containing 0.02 to 0.5 per cent of soda ash and, if desired, soap.  The compositions will remain stable for 24 hours as 10 per cent emulsions.  In an example a composition is prepared by mixing at ordinary temperatures 86.7 per cent of mineral oil (100 S.S.U. at 100 DEG F), 12 per cent by weight of a sodium mahogany sulphonate concentrate (about 8 per cent of sulphonate in the final product), 1 per cent of sorbitan mono-oleate polyoxyethylene derivative and 0.3 per cent of sorbitan mono-oleate. The final composition has a viscosity of 184 S.S.U. at 100 DEG F.
Patent GB-980228-A (GB)
Title: Production of particulate ammonium nitrate
Inventor: CAMPBELL GEORGE REID
IPC: C01C1/18
Filed: 1962-09-03
Abstract: Particulate ammonium nitrate is prepared by mixing dry ammonium nitrate grains with water in proportions such that the water content of the mixture is not more than 10 per cent by weight at a temperature below the fusion temperature of the mixture and for a time of between 10 and 15 minutes sufficient to dissolve the surface portion of the grains.  The mixture is dried under conditions which preclude complete dissolution of the grains, preferably in a rotary drier using a hot air counter current drying system where the air may initially be at a higher temperature than the mixture fusion temperature.  The water may be in the form of a concentrated ammonium nitrate solution at the temperature of mixing.  Dissolution of the grains may be further reduced by adding to the mixture, before drying, a quantity of the already dried product.  The product shows enhanced oil adsorption properties, and is suitable for use in ammonium nitrate/diesel oil explosive compositions.
Patent GB-509242-A (GB)
Title: Process of concentrating sols and suspensions
IPC: B01D1/22
Filed: 1937-12-06
Abstract: 509,242. Medicines ; X-ray contrast media. KRAUSE, G. A. Dec. 6, 1937, Nos. 33732 and 33734. Convention dates, Dec. 4, 1936, and Sept. 10, 1937. Addition to 483,221, [Group III]. Drawings to Specification. [Class 81 (i)] [Also in Group III] Preparations suitable for the intravenous injection of medicines and X-ray contrast media are obtained by making aqueous dispersions of solid organic compounds according to the parent Specification, having particles of isotropic or anisotropic form by adding a solution of the compound in an organic solvent to water in the presence of an additional colloid and within certain defined temperature limits and concentrating them quickly and preferably in vacuo, with constant agitation, in a rotating cylindrical evaporator. If desired, rocking and similar movements may also be imparted to the evaporator. In addition, agglomeration or sedimentation of the particles may be prevented on standing by adding to the sol or suspension during or after the concentration a sufficient amount of a hydrophilous, jelly-forming substance, e.g. gelatine or agar, that at room temperatures, below 30‹ C., a solid jelly will first be formed, and the Brownian movement of the particles suppressed. According to an example, 50 gms. of tri-iodine heptadecylic diethyl methanol is dissolved in 4000 c.c. of alcohol and added at 30‹ C. to 6000 c.c. water containing 0.03 per cent of lecithin. A suspension of spherical particles having an average diameter of 0.5Á, is formed. It is then concentrated at 12-18‹ C. until the disperse phase is about 35 per cent of the total volume. Gelatine is then added in an amount equal to 1-1.5 per cent of the disperse phase. A rigid jelly is formed at room temperatures. Above 30‹ C. a liquid sol is formed.
Patent GB-649117-A (GB)
Title: Improvements in and relating to electric thermostats
IPC: H01H37/52
Filed: 1947-12-22
Abstract: 649,117. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 22, 1947, No. 33833. Convention date, Dec. 26, 1946. [Class 38(v)] [Also in Group XIII] The contact arm 8 and bimetal strip 10 of a thermostat positioned in an electric blanket, are moulded at one end in a block 12 of a plastic material in which is mixed a. conducting substance such as carbon,. thereby constituting, a high resistance connected across the contacts 9, 11. On overheating, the contacts 9, 11 open, but a small current flows through the block 12 to heat it and further deflect the bimetal strip 10, thus obviating contact flutter. The thermostat is enclosed in a copper tube 5 rendered fluid-tight by rubber plugs 6, 7. Specification 599,476 is referred to.
Patent GB-1065446-A (GB)
Title: Method of polymerization of cyclic ethers
IPC: C08G2/00
Filed: 1964-08-19
Abstract: Cyclic ethers having 3 to 6 C atoms in the ring are polymerized in the presence of a catalyst system comprising the non-volatile residue from thermal cracking of an aluminium halide etherate. Numerous examples of cyclic ethers containing 3, 4, 5 and 6 C atoms per ring are given.  Bulk polymerization and solution polymerization techniques are also described. Examples 1-4 describe the polymerization of epichlorohydrin using the non-volatile residue from AlCl3.Et2O.  Examples 5-8 describe the polymerization of propylene oxide in the presence of a similar catalyst, the latter also being used to polymerize 3:3-bis(chloromethyl)-oxacyclobutane, tetrahydrofuran, 1:3-dioxolane and trioxane.ALSO:Polymerisation catalysts comprise the non-volatile residue from thermal cracking of an aluminium halide etherate.  The major constituent of such catalysts is Al O X where X is a halogen. Other constituents are Al X3, Al2O3 and Al(OR)3 where X is halogen and R is alkyl.  The catalysts may be associated compounds which produce carbonium ions or oxoinium ions with Lewis acids, numerous examples of which are given.
Patent GB-184741-A (GB)
Title: Improvements in and relating to cooking apparatus and the like
IPC: A47J37/12
Filed: 1921-12-16
Abstract: 184,741. Chambers, R., and Mathieson, J. Dec. 16, 1921. Frying-ranges.-In cooking-apparatus of thekind comprising an open pan in which fish &c. is cooked in molten fat, fire-extinguishing means are provided for use should the fat catch fire. As shown, a sheet i, of asbestos fabric or the like,. is normally retained by a spring on a roller h carried by the removable cover d and is provided with chains k running round guide-rollers j. The chains k are attached to a bar l which is operated in the event of the fat in the pan a catching fire, to extend the sheet i and so smother the fire, the bar l being of sufficient weight to retain the sheet i in its extended position. Guide rails m may be provided to ensure that the sheet is held down close to the pan a.