baber/WOPTO huggingface dataset:
Patent GB-829090-A (GB)
Title: Production of aqueous uranium sulphate solutions
IPC: C01G43/00
Filed: 1945-10-20
Abstract: Uranium values are recovered as uranyl sulphate from an oxide of less than hexavelent uranium by reaction with dilute sulphuric acid in the presence of an added soluble fluoride.  The process is also suitable for the treatment of slags obtained in the manufacture of metallic uranium by reacting uranium tetrafluoride with an alkali or alkaline earth metal, beryllium or aluminium to form metallic uranium and a slag which already contains the requisite fluoride.  The invention is particularly applicable to U3O8 and UO2.  The fluoride may be added as magnesium, sodium, calcium or hydrogen fluoride.  The dissolution may be effected in the presence of an oxidizing agent, particularly if any free metal is present.  Thus air, hydrogen peroxide, nitric acid or a permanganate or chromate may be used, such oxidizing agent also converting the dissolved uranium to the hexavalent form. According to examples: (1) a slag obtained from the production of metallic uranium by the tetrafluoride process containing uranium together with a substantial proportion of calcium and magnesium fluorides was heated with 20% sulphuric acid at 85 DEG  to 95 DEG C., thereby completely dissolving the uranium values; (2) a uranium oxide product obtained by roasting contaminated uranium metal in air was heated with 12% sulphuric acid and a minor amount of calcium fluoride.  The solutions from this and the preceding example may be treated with 27 1/2 % hydrogen peroxide solution to convert the uranium to hexavelent form and the solutions may be heated to 90 DEG C., treated with calcium carbonate to adjust the pH between 2.8 and 3.5 and filtered free from solid matter.  (3) Uranium dross obtained when crude uranium from the tetrafluoride process was re-melted, air roasted at 800 DEG  C., milled and treated with sulphuric acid at temperatures between 85 DEG  and 100 DEG  C.  The uranium dross contained 3 1/2 % fluorine.  The solutions obtained were diluted with water, cooled to 40 DEG  C. and treated with 28% aqueous hydrogen peroxide, after which the solution was heated to boiling-point to decompose any uranium peroxide formed.  On separation of the solid matter a solution of uranyl sulphate was obtained.  A further example shows the use of sodium fluoride.  The process may be combined with the process of Specification 829,087 where uranium dross is roasted with lime in air and the product treated with concentrated sulphuric acid at elevated temperature.  The product of this sulphuric acid treatment is introduced into water to dissolve the soluble components and the relatively dilute sulphuric acid solution obtained containing uranyl and other sulphates may be employed in the process of the present invention. Specification 829,088 also is referred to.
Patent GB-746163-A (GB)
Title: Improved foldable box blank
Inventor: KAMPER ANDREW MATHIS
IPC: B65D6/18
Filed: 1954-09-24
Abstract: 746,163. Spiked-strips. NO-NAIL BOXES, Ltd. Sept. 24, 1954, No. 27697/54. Class 89 (2). [Also in Group XVII] A box has a central spiked binding strip 6 to reinforce its sides, the teeth 13 on the strip being staggered as between opposite edges to reduce risk of splitting the box panels. The panels are joined at the edges by known angle strips 5. Specifications 727,360, 728,800 and 729,627, [both in Group XVII], are referred to.
Patent GB-1065733-A (GB)
Title: Fine aluminium hydroxides
IPC: C01F7/02
Filed: 1964-07-06
Abstract: Alumina monohydrate of boehmite structure, having a surface area from 150-600 m2/g. as measured by the B.E.T. nitrogen-adsorption method, is prepared by developing at 60-120 DEG  C. for 15 hours to 10 days a suspension or cake of hydrated amorphous alumina gel containing up to 35% by weight of Al2O3 and a quantity of univalent acid ions, e.g. from HNO3, in proportion of 0.05: 1 to 0.5: 1 relative to the molecules of Al2O3.  The cake of alumina gel may be obtained by centrifugal drying, washing and filtering an alumina gel precipitated continuously from sodium aluminate and nitric acid at pH 8-9; a suspension is obtained by diluting the cake. The boehmite may be coagulated by washing with aqueous ammonia and drying; this dry product may then be dispersed in isopropanol or aqueous isopropanol and the dispersion medium distilled off to obtain a powder.  Boehmite may be used as a pigment, binding agent, filler and film-forming agent.
Patent GB-1137318-A (GB)
Title: Sowing wheel for sowing and planting machines
IPC: A01C7/12
Filed: 1967-06-16
Abstract: 1,137,318. Seed sowing machines. SOC. REMY & FILS. 16 June, 1967 [18 June, 1966], No. 27933/67. Heading AID. A sowing wheel for dispensing seed in a seed sowing machine is formed in two parts held together on a shaft 6 by means of fastening rings 2. As shown in Fig. 3 the wheel is made in two parts 4, 5, the part 5 being removed so that the wheel may be mounted on the shaft and replaced to complete the wheel.
Patent GB-1059161-A (GB)
Title: Magnetic core shift registers
Inventor: MORRIS DAVID JOSEPH
IPC: G11C19/06
Filed: 1962-07-20
Abstract: 1,059,161. Magnetic core shift registers. ENGLISH ELECTRIC CO. Ltd. Oct. 21, 1963 [July 20, 1962], No. 27967/62. Heading G4C. [Also in Division H3] A bi-directional shift register employing two multi-aperture saturable magnetic cores per bit employs, as shown, cores 10 each with input aperture 12 and output apertures 13, 14 the winding 21 or 22 being selected for leftward or rightward shift respectively. The case is first " blocked " by a pulse or winding 24 sufficient to saturate it everywhere clockwise round the main aperture; this represents binary zero. An input pulse on line 15 or 16 (dependent on the direction of shift) can now reverse the direction of magnetization of one arm of aperture 12 and at the same time of the inner arms of apertures 13, 14. A priming pulse on line 21 or 22 then reverses the flux direction round aperture 13 or 14 to induce an output pulse in one of lines 17, 18 which are linked with the cores respectively to the left and right. Should the core be blocked (binary zero) the priming pulse will be insufficient to effect switching. The output pulse is supplied to the next adjacent core and a blocking pulse then returns the core to its " zero " state. The extension to three and more directional shift registers is described; in such systems further input and output apertures are required.
Patent GB-1479827-A (GB)
Title: Process for the production of dimethyl sulphoxide
IPC: C07B/
Filed: 1975-07-03
Abstract: 1479827 Dimethyl sulphoxide PRODUITS CHIMIQUES UGINE KUHLMANN 3 July 1975 [4 July 1974] 28071/75 Heading C2C Dimethyl sulphoxide is prepared by separarately introducing dimethyl sulphide and hydrogen peroxide with a concentration of 30- 60% by weight into an aqueous solution of dimethyl sulphoxide. The latter may be a fraction of the crude product of a previous operation. The product may be purified by washing with dimethyl sulphide.
Patent GB-1172443-A (GB)
Title: Improvements in Vortex Separators
IPC: B04C3/04
Filed: 1967-06-19
Abstract: 1,172,443. Centrifugal separators. GENERAL ELECTRIC CO. 19 June, 1967 [15 Aug., 1966], No. 28085/67. Heading B2P. A multi-cell vortex separator 4 includes a number of individual vortex separator elements 6 disposed in parallel in a common casing 8 and each comprising a cylindrical casing 10 with swirl and de-swirl vanes 16, 18 mounted respectively within its inlet and outlet portions and annular collecting chambers 26, 28, 30 disposed around, and communicating through slots 20; 22, 24 with the interior of, the casing 10, the elements 6 being axially staggered so that the collecting chambers on adjacent elements do not interfere with one another. The separator 4 may be incorporated in a piping system 2 between the high and low pressure casings of a steam turbine for separating water droplets from the steam. The separated droplets pass through the slots 20, 22, 24 into the collecting chambers 26, 28, 30 from which they drain by gravity through apertures 44 into the interior of the casing 8 which empties through a drain passage 40 and an orifice 46. The vanes 16, 18 in each element 6 are mounted on streamlined hubs 12, 14. The axial staggering of the elements is achieved by means of spacer cylinders 32, 34 at the inlet and outlet ends of the elements 6. The latter with the spacers are supported in apertures in sheet-plates 36, 38 on the ends of the casing 8.
Patent GB-1494584-A (GB)
Title: Electrolysis cells
IPC: C25B9/19
Filed: 1975-07-03
Abstract: 1494584 Anode connection in electrolytic cells DIAMOND SHAMROCK TECHNOLOGIES SA 3 July 1975 [5 July 1974] 28114/75 Heading C7B An electrolysis cell has a plurality of cathodes and dimensionally stable vertical tubular anodes, the latter carrying a conductive electrocatalytic coating, and is provided between its planar horizontal base 1 and the anodes 13 with a conductive imperforate blanket 12 which supports both the anodes and the cell can, and carries current from the base (positively connected at 2) to the anodes. The parts of the blanket exposed to electrolyte are protected and insulated therefrom e.g. by use of a blanket made of or coated with Ti, Ta, Zr, Mo, Nb or W which in use forms a passive oxide coating. An edge rim 12a prevents electrolyte seepage from the joint with the cell body. The anodes may be coated internally and/or externally and have perforations 13a, 13b in all but their upper region, whereby anolyte is circulated by the gas lift effect. The anodes may be attached via Ti-surfaced risers to Ti strips 14 integral with the blanket. The anode fastenings may allow removal and/or adjustment of the anode surfaces, which may comprise mesh or rods extending vertically or horizontally. A chloralkali diaphragm cell is described having base 1 of Cu or Fe, with electrodes of conventional materials.
Patent GB-485359-A (GB)
Title: Improvements in and relating to electric arc lamps
IPC: E01C5/22
Filed: 1937-10-16
Abstract: 485,359. Arc lamps ; variable - speed gearing. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 16, 1937, No. 28207. Convention date, Oct. 17, 1936. [Class 39 (i)] [Also in Group XXIV] The negative electrode of an arc lamp is fed forward or backward by means of bevel gear loose on a continuously running shaft and connected thereto by ratchets engaged and disengaged by devices operated by the voltage across the arc. The ratchets 31, 44 are attached to the two bevel wheels 32. The ratchet 31 is driven by pawls 30, 34 carried by an arm 28 on the shaft 10. Tails 40 attached to the pawls 30, 34 run on a cam surface consisting of a fixed portion 36 and a movable portion 37. The portion 36 is of such size that when one of the tails 40 is in contact with it the corresponding pawl is held out of engagement with the ratchet. The portion 37 is attached to a bracket 38 secured to the armature of a magnet 52 connected across the arc. This bracket also carries the movable portion 42 of a cam controlling the pawls operating the ratchet 44, the arrangement being such that the movable part of the cam allows the pawl to drive the appropriate ratchet in accordance with the voltage in the coil of the magnet 52.
Patent GB-736423-A (GB)
Title: An improved masonry or like drill bit
Inventor: ALLEN EDWIN
IPC: B28D1/14
Filed: 1952-11-10
Abstract: 736,423. Drills. ALBICO (PRECISION ENGINEERING), Ltd. Nov. 10, 1953 [Nov. 10, 1952], No. 28215/52. Class 83 (3). A masonry &c. drill comprises a tungsten carbide or hard tip 1 on a shank 3 of smaller diameter than the width of the tip, and a resilient wire 4 loosely coiled around, and secured at each end to, the shank.
Patent GB-158407-A (GB)
Title: Improvements in overprinting fabrics and yarns
IPC: B41F9/02
Filed: 1919-11-14
Abstract: 158,407. Calico Printers' Association, Ltd., Ashton, F., Ashton, R., and Mellor, G. Nov. 14, 1919. Rotary machines. - In a machine for printing fabrics or yarns with a design in register with a previouslyprinted design, the printing-roller or the fabric or yarn drawing - roller is driven at a variable speed from a roller and expanding pulley in the back nip, the rc,ller being driven from the crown-wheel of the impression bowl, and means being provided to adjust the expanding pulley so as to vary the relative speed of the printing-roller and material as required. As shown, the printing-roller c coacts with the bowl a of an ordinary calico-printing roller, round which the previouslyprinted fabric i is drawn by a pin roller b. The roller c or the roller b is driven bv a belt and expanding pulley from the nip roller j and the pulley is controlled by suitable connections to adjust the register of the designs.
Patent GB-1142329-A (GB)
Title: Improvements in rotary shaft seals
Inventor: DUREE JEFFREY
IPC: F16J15/38
Filed: 1966-05-12
Abstract: 1,142,329. Securing rings on shafts. UNITED STATES METALLIC PACKING CO. 19 July, 1966 [12 May, 1966], No. 28317/68. Divided out of 1,142,326. Heading F2U. A clamping and driving ring 49 of a rotary mechanical seal described in Specification 1,142,326, is secured on a shaft 41 by a ball 58 which is housed in a radial bore 59 in the ring and is cammed into engagement with the shaft by the conical end 57 of an axially directed screw 56 in the ring. The latter may be solid or may be split into halves or three or more segments, the halves or segments being bolted together. The ring acts as an axial abutment for resilient means acting on a wear ring 47, and drives the latter by means of at least one axially extending pin thereof engaging an aperture in the wear ring.
Patent GB-1212051-A (GB)
Title: Photographic silver halide development process
Inventor: BRAND BORIS PETER
IPC: G03C5/305
Filed: 1968-06-14
Abstract: 1,212,051. Photographic silver halide development process. ILFORD Ltd. June 6, 1969 [June 14, 1968], No.28395/68. Heading G2C. A process for the production of developed photographic material comprises treating a material containing an image in a developable silver halide with a solution of N-1-#- hydroxyethyldiethylene triamine, and simultaneously or subsequently with a silver halide developing agent. The said triamine derivative may be present in the photographic developing solution. The invention also comprises a photographic silver halide developing solution which comprises N-1-#- hydroxyethyldiethylene triamine, preferably at a concentration of 0À1 to 5g per litre. The said triamine is a development accelerator.
Patent GB-674855-A (GB)
Title: Synthetic hydrocarbon lubricants
IPC: C10G50/02
Filed: 1948-11-03
Abstract: Synthetic lubricants are obtained by passing normal, alpha-mono-olefines having between six and fourteen carbon atoms per molecule into a reaction zone free of catalytic material, at a temperature from about 700 DEG  to 900 DEG  F., and in the presence of hydrogen or carbon monoxide, or mixtures of hydrogen and carbon monoxide, the partial pressure of the gas or mixture of gases employed being from 50 pounds per square inch to 5000 pounds per square inch.  The olefine used may be pure or it may be mixed with other hydrocarbons such as paraffinic hydrocarbons.  A mixture of the olefines of varying chain lengths may also be used.  Suitable charge stocks include the liquid olefines obtained by cracking of paraffin wax, slack wax, gas oils, foots oils, or heavy petroleum residua. Specified olefines are 1-hexene, 1-octene, 1-decene and 1-tetradecene.  The hydrogen and/or carbon monoxide may comprise hydrogen-rich refinery gases, synthesis gases and gases obtained by the oxygen-deficient combustion of fuel oil or coal.  It is preferred to use mixtures of the two gases, the volume ratio of hydrogen to carbon monoxide being preferably between 10 : 1 and 1 : 1.  The synthetic lubricant may be recovered from the liquid effluent from the reaction zone by distilling off both the unreacted olefinic material, which can then be recycled to the process, and the intermediate boiling polymer which is also formed.  The process may be carried out batchwise or continuously and is preferably effected in a sealed, rocking-type stainless steel bomb.  In a typical example, 1-decene is charged into a bomb and the system flushed with hydrogen and/or carbon monoxide to displace the air.  Pure hydrogen or carbon monoxide or mixtures of the two is then introduced so that the gas or gas mixture gives a pressure of 1000 pounds per square inch.  The reactants are then heated rapidly to 750 DEG  F. with rocking of the bomb for three hours.  The unreacted olefine and intermediate boiling material are then distilled off to leave the residual lubricating oil.  The results obtained under various conditions of treatment of 1-decene are tabulated together with the results obtained in comparative examples, using air and nitrogen respectively instead of hydrogen and carbon monoxide and the properties of the resulting lubricant are given in each case. Specification 657,307 is referred to.  The Specification as open to inspection under Sect. 91 states that alpha-mono-olefines which contain one or more side chains which are very short relative to the main chain length may also be used as starting materials.  This subject-matter does not appear in the Specification as accepted.
Patent GB-924835-A (GB)
Title: Improvements in electrical capacitors
IPC: H01G/
Filed: 1961-08-08
Abstract: 924,835. Electric capacitors; fusible cut-outs. SIEMENS & HALSKE A.G. Aug. 8, 1961 [Aug. 9, 1960], No. 28596/61. Classes 37 and 38 (1). An electrical capacitor, which may be in the form of a roll 2, includes at least two conductive plates located in a sealed housing 1, the housing consisting of a wall which surrounds the plates and is provided with closures at opposite ends and which is formed with one or more corrugations 4 arranged intermediate the end enclosures so that these move further part in consequence of opening the corrugation or corrugations at a predetermined gaseous pressure within the housing. This movement ruptures an electrical connection 3 which normally holds the unit in a compressed condition, so that the capacitor is prevented from exploding in the event of its failure under extreme conditions.
Patent GB-1294255-A (GB)
Title: Improvements in and relating to wheels for trolleys
IPC: B66B31/00
Filed: 1971-06-18
Abstract: 1294255 On and off castors KUGELFABRIK SCHULTE & Co 18 June 1971 [20 June 1970] 28622/71 Heading A4U [Also in Division B7J A rigid axle wheel or castor wheel has means which engage the stair tread of an escalator, such that a trolley supported by the wheel is firmly positioned on a tread of the escalator. The means comprises a tread engaging member 17, Fig.5 riveted to a bracket 16, a U-shaped plate (21) Fig.7 (not shown), a mounting bracket 24 Fig.10, having extension side plates 25, or extensions 27, 28 Fig.11 of a castor fork 26.
Patent GB-229264-A (GB)
Title: An improved sun protecting upper roofing
IPC: E04D3/36
Filed: 1924-11-29
Abstract: 229,264. Till, F. D. Feb. 12, 1924, [Convention date]. Roofing.-To protect roofing from the sun in hot climates, one or more subsidiary upper roofs 11 are bolted to the sides and front of the main roof 9 and spaced apart from it and from each other so that the wind has free passage between them. In the form shown in Fig. 3, flat roofing plates 7 are supported by props 5 which are perforated to dissipate heat and have shanks to engage the plates by nuts, wires, or other means. The plates may abut with plain or serrated edges, and may be corrugated, halfround, or of other shape. They may be made of any suitable material, for example, earthenware, wood, metal, concrete, glass, papier mÔchÚ, &c.
Patent GB-854018-A (GB)
Title: Improvements in and relating to pole-changing a.c. dynamo-electric machines
Inventor: FROW REGINALD HARRY
IPC: H02K3/12
Filed: 1956-09-20
Abstract: 854,018. Winding layouts for dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. Sept. 18, 1957 [Sept. 20, 1956], No. 28846/56. Class 35. In a change-pole machine having two-layer windings, the winding of one pole-number is disposed within the layers of another. As shown for a two-speed induction motor stator, the conductors of the winding 15 of one polenumber lie above the conductors of the winding 16 of the other pole-number 16 where this is at the bottom of a slot at 13, and below them where they occupy the top of a slot at 14. The two windings are separated by an insulating layer 17 and wrapped up to form single doublelayer coils. The two coils thus have the same mechanical pitch and therefore different electrical pitches. The connections may be brought out at the same end of the machine as shown, or the connections of the two windings may be brought out at different ends of the machine. If desired the coils of the two windings may have different spans necessitating mechanical separation of the coils. In this case, the ends may be wrapped together after insertion in the slots. Three coils may be used. The composite coils may be braced by an insulated support-ring 19 and varnished cord 20. Insulating blocks 23 secured between the winding overhangs by varnished cord 24, may also be used. The same winding arrangement may be applied to the rotor.
Patent GB-135837-A (GB)
Title: Improvements in Wind Shields.
Inventor: ROE ALLIOTT VERDON
IPC: B60J1/04
Filed: 1919-07-24
Abstract: 135,837. Roe, A. V. March 22, 1918, [Convention date]. Pivot adjustments.-A windscreen for aeroplanes, motorvehicles, &c. is provided with pivots 3 mounted in clamping- members comprising a split annulus 5 having radial extensions 6, 7 connected by a bolt 8 and nut 9, the extension 6 being permanently fixed to the dash-board.
Patent GB-483914-A (GB)
Title: Improvements in or relating to fishing reels
IPC: A01K89/01
Filed: 1936-10-24
Abstract: 483,914. Fishing-reels. PATIN, A. P. Oct. 24, 1936, No. 28985. Convention date, Nov. 13, 1935. [Class 48] In a stationary-drum fishing-reel, the drum is reciprocated by a screw 9 having a normal thread and a quick thread of opposite pitch. The screw is formed on a sleeve 7 mounted on a pin 6 and carrying a pinion 8 engaged by the driving-gear 27. The screw is engaged by a spring finger 15 carried by the member 13 on which is mounted the drum. consisting of parts 18, 19 screwed together and securing a hollow member 20, preferably of plastic material, and containing a damping liquid for the line. The drum may have restrained rotating movement by providing it with a plate 22 having cells engaged by bosses on a disc 24 pressed by a spring 25 and nut 26. Sleeve 7 carries a cup 12 on which is mounted the line-guide 29 which rotates with the sleeve. The guide 29 carries a ring 32 notched to receive a spring-pressed ball to hold the guide in open and closed positions. The guide is extended as an arm 38 engaging a cam on a disc 4 formed on the support 2 so that on winding the guide is brought into closed position. The support 2 has a recess 42 containing a screwdriver.
Patent GB-158742-A (GB)
Title: Improvements relating to liquid or gaseous burners
IPC: F23C99/00
Filed: 1919-11-22
Abstract: 158,742. Steele, J. H. Nov. 22, 1919. No Patent granted (Sealing fee not paid). Gas burners, solid-flame; spray burners.-The nozzle 17 of a liquid or gaseous fuel burner for furnaces, ovens, kilns, &c. enters one end of a preferably cylindrical burner block formed with a helical passage 5 and an arc-shaped chamber 9 through which air or ether gas for supporting combustion passes and is delivered in a heated condition to the burner nozzle through ports 13. The block preferably consists of four parts 1 - - 4 which, when fitted together, encloses a cylindrical passage 10 having conical ends 11, 12. The ports are preferably rectangular with the rear wall inclined to cause the air to flow in the same direction as the fuel issuing from the nozzle. Combustion takes place in the passage 10.