baber/WOPTO huggingface dataset:
Patent GB-730230-A (GB)
Title: Alkaline leaching process for uranium extraction
IPC: C22B60/02
Filed: 1952-12-10
Abstract: Uranium bearing materials are reached with a solution of an alkali metal (including ammonium) carbonate in the presence of sodium, potassium, calcium or ammonium permanganate as an oxidizing agent and sufficient bicarbonate of the alkali metal to prevent the existence of alkali metal hydroxide in the leach liquor, thereby dissolving the uranium as alkali metal uranyl tricarbonate.  The alkali metal carbonate and bicarbonate may both be present initially or one of them may be formed during the leaching, by reaction of the other with constituents of the material to be leached.  After the leaching, addition of alkali metal hydroxide to the leach liquors precipitates alkali metal diuranate and forms alkali metal carbonate which may be recycled. The process is applicable to primary uranium bearing materials such as pitchblende or uraninite, the leaching being at 100-200 DEG  C. under superatmospheric pressure, and to secondary uranium bearing materials, e.g. carnatite, the leaching in this case preferably being at 50-100 DEG  C. at atmospheric pressure.  Uranous or uranyl arsenates, phosphates, oxides or hydroxides may also be treated.  According to examples, (1) a secondary uranium bearing ore was ground and leached with 5 per cent sodium carbonate solution in the presence of potassium permanganate at 100 DEG  C. after which the slurry was filtered.  The filtrate was treated with caustic soda to precipitate the diuranate and reform sodium carbonate solution which was employed to wash the filter cake from the leaching in subsequent cycles; (2) pitchblende was heated in an autoclave for 4 hours at 200 DEG  C. at corresponding pressure with an aqueous solution containing sodium bicarbonate, ammonium carbonate and potassium permanganate, to obtain a 98 per cent extraction of the uranium in the solution.  A further example compares extractions when other oxidizing agents, namely ammonium persulphate, manganous nitrate, hydrogen peroxide, sodium nitrate and manganese dioxide are employed.  The use of sodium peroxide and perborate, potassium chlorate, nitrate and dichromate and bleaching powder as oxidizing agents is referred to.
Patent GB-161631-A (GB)
Title: Improvements in or relating to the construction of concrete walls and pillars or piers connected therewith
IPC: E04B2/56
Filed: 1919-12-15
Abstract: 161,631. Airey, E., (trading as Airey & Son, W.). Dec. 15, 1919. Walls; double walls; joist floors.-In walls formed of precast concrete slabs spaced apart with or without concrete filling and with pillars or piers cast in situ, the vertical edges of the slabs have either V- grooves b or are bevelled so that they key with the pillars, and the pillars are cast with spacing-projections i by means of the boards l, m and bolts o. Corner piers are formed bv boards s, t, angleirons u, an inner wooden block p, and bolts q, r. No reinforcement is used in either the slabs or pillars, and no mortar is used in the bed joints between the flat abutting edges of the slabs, but such edges may have grooves which may be grouted. The plates have roughened faces to receive a plaster, stucco, or rough-cast finish, and may be formed in moulds of the kind described in Specification 169,729, [Class 87 (ii), Moulding plastic &c. substances]. A floor or roof may be formed by iron or wooden joists v, Fig. 6, which rest in recesses in the wall slabs and are covered on the top and bottom with corrugated or perforated steel sheets y to carry concrete or plaster and floor boards z.
Patent GB-684444-A (GB)
Title: Improvements in or relating to a centrifugally-actuated snap-action device
IPC: F16H35/14
Filed: 1950-12-27
Abstract: 684,444. Centrifugal switches. GARRATT CORPORATION. Dec. 27, 1950 [Dec. 31, 1949], No. 31373/50. Class 38 (v) [Also in Groups XXIV, XXVI and XXIX] A centrifugally-actuated snap-action switch comprises a rotatable support, a snap-acting arm pivoted to the support to one side of the support axis and extending across said axis, and carrying a weight at its free end, two spaced stops limiting movement of the arm longitudinally of the axis, and yielding means connected to the arm and the support and applying a force biasing the arm towards one of the stops, the axis making an angle of less than 90 degrees with a line passing through the pivot of the arm and the combined centre of gravity of the arm and the weight. The support 33 is attached to a shaft 22 rotated through gears 23, 26 by the controlled apparatus, and comprises a trifurcated blade spring, the central tension arm 40 of which is mounted on a screw 42 and the outer limbs 51 of which engage in notches 53 in a part 48 of the support 33. The arm 40 is normally urged by the springs 51 against a stop 47 on the support 33 and carries the weight 55. At a predetermined speed, the centrifugal force of the weight just overbalances the force of springs 51 and the arm 40 snaps clockwise until it abuts a stop 46, which is preferably placed so that the blade spring cannot move over-centre, an insulating plunger 71 being pushed to the left to close switch contacts 60, 61, during the snap movement. The contacts re-open when the speed falls below a certain minimum value, the springs 51 restoring the arm 40 with a snap action. The predetermined speed may be adjusted by moving screw 42 in or out to alter the pivot of arm 40, and/or by shifting springs 51 from one pair of notches 53 to another. In a modification, Fig. 7 (not shown), a coil spring is arranged between the casing 17 and an extension of the blade 59 carrying the contact 61, the stress on the spring being adjustable by a screw to vary the predetermined speed.
Patent GB-921502-A (GB)
Title: Improved method of manufacturing aluminum sheath for electric cable
IPC: B21C23/26
Filed: 1961-08-31
Abstract: 921,502. Sheathing cables; extruding; altering physical structure. CANADA WIRE & CABLE CO. Ltd. Aug. 31, 1961 [Sept. 6, 1960], No. 31434/61. Classes 83 (2) and 83 (4). An aluminium cable sheath is made by extruding successive billets to form a continuous sheath having stop marks at the junctions of the successive portions, straining the sheath at the regions of the stop marks and annealing the strained sheath. This is stated to improve the metallurgical structure at the stop marks. The cable is strained by reducing its diameter in a drawing operation and the subsequent annealing is performed at 600-1000‹ F. for 30 minutes to 5 hours possibly by electric resistance heating. Specific examples are given.
Patent GB-174767-A (GB)
Title: Apparatus for playing table-football
IPC: A63F7/06
Filed: 1920-11-08
Abstract: 174,767. Busson, E. J. Nov. 8, 1920. Table games.-Apparatus for playing a game simulating football of the kind in which a board representing a football field and having supporting-legs is formed with slots through which handles forming extensions of the playing figures extend so that the figures can be manipulated by the players from beneath the board comprises a board a, Fig. 1 formed with sloping sides and angular slots j, and an enclosing net having an aperture h for facilitating the placing of the figures i, Fig. 5, and ball upon the board. The board is formed with an upstanding edge having spaces c for the goals, and the net is supported by frames g hinged to the edge of the board. By modifying the form of the figures, the apparatus can be used for playing a game simulating hockey or the like.
Patent GB-776152-A (GB)
Title: Improvements in or relating to cartons and containers
IPC: B65D43/02
Filed: 1953-10-13
Abstract: 776,152. Boxes. LYONS & CO., Ltd., J. and HEDGES, F. H. G. Oct. 28, 1954 [Oct. 13, 1953], No. 31503/53. Class 18. A box has a base with inner and outer walls 3, and a lid with flangee engaging only the outei walls. The base and lid are apertured as required by the letter depicted. The box may be in the shape of a letter.
Patent GB-663696-A (GB)
Title: Improvements in or relating to a grinding machine
IPC: B24B5/06
Filed: 1949-12-08
Abstract: 663,696. Grinding machines. BROWN & SHARPE MFG. CO. Dec. 8, 1949 [Dec. 30, 1948], No. 31513/49. Class 60 A grinding machine, having an internal grinding fixture on a bracket 16 pivotally supported about the spindle of an external grinding wheel 10 for movement between low operative and raised inoperative positions, has supporting means for the bracket 16 comprising a member 34 pivoted at 36 or a support 14 and biassed against a pair of contact surfaces on the bracket 16, and a device 46 connected between the latter and the support 14 to draw the bracket against the pivot 36 and the member 34. The upper edge of the member 34 engages a finished bearing surface on the bracket 16 while the contact surfaces are provided by two adjustable drop screws 39 supported in the abut. ment 40, the bias means for the member 34 being in the form of a spring 38. When the bracket 16 is in its low or operative position it is secured by the device 46, which is in the form of a bolt, and when it is in its raised or inoperative position it is secured by the member 34 engaging a lug 50 on the bracket, the bolt 46 having been withdrawn to an inoperative position where it is held by a spring clip. A bushing 22 surrounding the spindle of the external grinding wheel forms the pivotal mounting for the bracket 16. The spindle 20 of the internal grinding wheel is driven by a belt 26 from an electric motor carried on the support 14. The work is supported between a headstock and a tailstock mounted on a longitudinally movable support and the grinding wheel support is mounted for transverse adjustment. For internal grinding, the work is supported by the headstock alone.
Patent GB-1496254-A (GB)
Title: Nutritive infusion solution and its production
IPC: C07C67/00
Filed: 1975-07-28
Abstract: 1496254 Amino acid mixtures AJINOMOTO CO Inc 28 July 1975 31566/75 Heading A5B An infusion solution for intravenous nutrition comprises a solution in water of the following amino acids in proportion expressed in mole ratio per 1.00 mole isoleucine: L-isoleucine 1.00 L-leucine 1.58-3.31 L-lysine 1.03-5.44 L-methionine 0.31-1.38 L-phenylalanine 0.28-1.25 L-threonine 0.79-3.43 L-tryptophan 0.39-1.25 L-valine 2.71-4.18 the solution having a pH of 4.9 to 7.8, and being free of cysteine and emulsifier, and the total concentration of amino acids being from 8 to 20% by weight. The solution may also contain 0.19-0.66 mole L-histidine, optionally with 0.79-3.00 moles L-arginine and 1.08-1.41 moles L-tyrosine, per 1.00 mole isoleucine. When present, the L-tyrosine can be in the free form or as N-acetyl-L-tyrosine or other compounds providing L-tyrosine in vivo. The solution may be put up in infusion bottles under a nitrogen atmosphere and sterilised by autoclaving.
Patent GB-153588-A (GB)
Title: Improvements relating to gyroscopic apparatus for ships
IPC: G01C19/38
Filed: 1920-02-23
Abstract: 153,588. Sperry Gyroscope Co., (Assignees of Tanner, H. L.). Nov. 8,1917, [Convention date]. Gyroscopic apparatus.-Relates to apparatus for use on ships, and particularly to compasses, of the kind having a pendulously supported gyroscope and consists in connecting the gyroscope to its support by resilient means which oppose the distributing forces due to rolling and pitching, the said means being rigid as regards sudden oscillations but slowly yieldable to a sustained disturbing force, and mounted in proximity to the gimbal axis of suspension of the gyroscope. The means shown in Figs. 1 and 3 for resisting disturbances due to oscillations about the E-W axis comprise a member 47 connected by springs 51, 52 to a projection 53 of the frame 5 which supports the gyroscope, and pivoted at 46 to a bracket 45 secured to the gimbal ring 2; the portion 56 of the member 47 is attached to the piston 55 of a dash-pot 48 pivoted to the bracket 45. The springs can be adjusted by screws 54. Similar means are provided around the N-S gimbal axis between the ring 2 and bowl 1 to reduce the disturbances due to rolling, the member 47 and dash-pot 48 being in this case pivoted to the bowl. The dash-pots resist sudden movements, but themselves move when, for example, a prolonged list occurs so as to allow the members 47 to become centralized with respect to the pendulous gyroscope.
Patent GB-1395963-A (GB)
Title: Thrust rolling bearing
IPC: F16C19/54
Filed: 1972-07-06
Abstract: 1395963 Bearings NADELLA and A PITNER 6 July 1972 [7 July 1971] 31583/72 Heading F2A A thrust rolling bearing cage comprises two parts, apertures being provided in one part 11 for receiving the rolling elements, and the other part being a ring 8 having an abutment face 7 for the cage or roller-ends of an adjacent radial bearing, the arrangement being such that the parts are free to rotate with respect to each other. The bars defining the apertures may be free or joined at their inner ends. The part 11 may be a single or double thickness of sheet metal, and is given an initial configuration such that it can be easily assembled to the ring 8. The part 11 is then bent to its final configuration by axial pressure, thereby interlocking the parts 11, 8 whilst permitting relative rotation between them. The ring 8 is produced by machine turning or sintering and is hardened. In an alternative embodiment (Fig. 2, not shown), the ring 8 is situated radially outside the part 11. In a further embodiment (Fig. 3, not shown), the ring 8 is situated radially between two parts 11 locating two concentric rows of rolling elements, and is rotatable with respect to both parts.
Patent GB-853453-A (GB)
Title: Foam rubber cushion and method of making same
IPC: A47C27/15
Filed: 1958-10-03
Abstract: 853,453. Cushions. FIRESTONE TIRE & RUBBER CO. Oct. 3, 1958 [Jan. 28, 1958], No. 31615/58. Class 52(4) The side walls 17 of a foamed rubber or plastics squab 10 are of concave section and the containing cover is of slightly smaller lateral dimensions than the squab so that the protruding top and bottom edges of the latter are compressed into the squab. The sides can be moulded to shape or a cushion can be built from slabs 25, 26 cut from stock and a peripheral level-edged strip 28 secured around the concave sides.
Patent GB-604082-A (GB)
Title: A device for facilitating descaling and like servicing operations in pipe circuits carrying liquids or gases
IPC: B08B9/02
Filed: 1945-11-23
Abstract: 604,082. Devices for facilitating pipe cleaning. BLAKEBOROUGH, R., and BLAKEBOROUGH, R. L. Nov. 23, 1945, No. 31681. [Classes 99 (i) and 99 (ii)] A device for facilitating descaling or like servicing operations in pipe circuits comprises a body part 1 adapted,to be included as a permanent fixture in the circuit, and a plug part 10. The body part is formed with a chamber 4 having ports 2a, 3a communicating with the pipe circuit and a lateral opening 4a normally closed by means of the dome member 7 and cap 9 (Fig. 3). The plug has a duct 12 adapted to communicate with one of the ports and with the source of servicing fluid supply, the latter being achieved by means of a stem 13 which screws into the plug and passes through the opening (Fig. 3) in the dome 7 and through the member 14 (Fig. 1) which replaces the cap 9 when the device is in use. A compression spring 15 bears against the top of the plug, and washers 11 are interposed between it and the ports. A plug with a rectangular plan and slightly tapered in vertical section is shown; the plug may be frustoconical or other suitable shape. The chamber is similar to the plug in each case.
Patent GB-911617-A (GB)
Title: Improvements in or relating to convertible chairs.
IPC: A47C3/14
Filed: 1961-09-04
Abstract: 911,617. Seats. ALT, R. Sept. 4, 1961 [Sept. 28, 1960], No. 31702/61. Classes 52 (2) and 53 (3). A convertible chair comprises a tubular metal frame 1 including legs 7, 9 and cross-pieces 8, 10 and an upwardly-extending support 16, a seat unit 2 supported on the frame and provided with a drawer 11 arranged to be drawn laterally out of the seat unit, and a box 3 attached to the upwardly-extending support 16, the box being provided with a lid 14 hinged to the upper side of the box and the arrangement being such that a user may sit on the seat unit 2 either back towards the box 3 or face towards the box, and the lid 14 when lowered closes the box and forms a back-rest for a user sitting back towards the box. The box 3 is pivotally attached to the support 16 and is provided with internal compartments 12. Attached to the inside of the lid 14 are a tubular electric lamp 13 and a mirror 15. The lid 14 and seat unit 2 are upholstered.
Patent GB-520793-A (GB)
Title: Improvements relating to windows, for aircraft
IPC: B64C1/14
Filed: 1938-11-02
Abstract: 520,793. Windows. BECKETT, LAYCOCK & WATKINSON, Ltd., and WATKINSON, A. Nov. 2, 1938, No. 31750. [Class 20 (iii)] In a window for aircraft having a fixed pane 17 and a sliding pane 25 the adjacent edges of these panes are spring-pressed towards one another in a direction perpendicular to their planes so that in the closed position these edges are substantially flush with one another. In one construction a spring 35 presses down on pane 25 and a handle 30 is attached to the latter so that it can be disengaged from a channel 26 on the fixed pane 17 and slid on top thereof as shown by the dotted lines. In another construction pane 17 is mounted on swinging links 51 and 52 and pressed down by a spring 55. The adjacent edges of the panes are sloped so that the thrust of the sliding pane raises pane 17 so that the former can slide under it. In an alternative construction the plane 17 is absolutely fixed and a changed slope is provided at the edges so that pane 25 rides up on to plane 17 when'the window is opened.
Patent GB-989491-A (GB)
Title: Process for the preparation of chlorine-containing synthetic rubbers
IPC: C08K3/011
Filed: 1961-09-04
Abstract: Chlorine containing synthetic rubbers are obtained by chlorination of a polyolefin in an aqueous dispersion at a temperature above the agglomeration temperature of the unchlorinated polyolefin, followed by vulcanization (e.g. chemical or by irradiation), optionally in conjunction with partial dechlorination, dehydrochlorination or dehydration.  Fillers, plasticizers and other synthetic rubbers also may be present.  In examples the vulcanization is effected in the presence of magnesium stearate, magnesia, zinc oxide, sulphur, litharge, antimony pentasulphide and mercaptobenzothiazol. Specifications 828,938 and 882,524 are referred
Patent GB-175711-A (GB)
Title: Improvements in and connected with gramophones, phonographs and the like
IPC: G11B3/74
Filed: 1920-11-10
Abstract: 175,711. Cooper, H. A. Nov. 10, 1920. Momentary-cont a c t switches, mechanical. - In an apparatus in which a drum or the like is sounded synchronously with a phonograph &c. particularly when reproducing orchestral music, by means of a stylus which, in following a separate record-rack, moves contactpieces tending tightly to press against it, so as to open an electric circuit, either the vibration portions of the record may cause striking of the drum, as is preferred, in which case opening of the stylus circuit by the vibrations causes closure of another circuit including the striker electromagnet, or the smooth parts of the record may cause the striking, in which case a single circuit is used and the record vibrations are arranged normally to keep the circuit open. The stylus a, a<1>, which is spring-mounted in a stiff rubber boss, is shown arranged for working in a track having vertical vibrations but may be adapted for horizontal vibrations. When on a smooth part of the record the stylus makes contact with both of two light springs d, d', but when vibrating is never in contact with both at once.
Patent GB-341871-A (GB)
Title: Improvements in methods and apparatus for directing fluids for propulsion jets and other purposes
IPC: F02K7/00
Filed: 1929-10-21
Abstract: 341,871. Turbines. PADGETT, C. S., 4114, New Hampshire Avenue, Washing- ton, U.S.A. Oct. 21,1929, No. 31943. Convention date, Nov. 20, 1928. [Class 110 (iii).] Jet propulsion apparatus comprises a number of nozzles directing whirling jets of fluid into a common stream, each jet whirling in a direction opposite to the adjacent jet or jets, so as to minimize internal friction in the combined jet. These jets drive blade wheels, which, in addition to driving parts of the apparatus may drive external mechanism. The jets discharge into successively enlarged casings and a limited amount of the surrounding medium is introduced at each stage. Fig. 1 shows an apparatus having two nozzles comprising tubes 4, 5 with spiral slots 6 through which fluid is discharged into sleeve members 3. The ends of the sleeve members 3 are surrounded by circular casings, 10, 11 opening into an expansion chamber 12 which is surrounded at its end by a cylindrical casings 15. Between the members 3, and the casing 10, 11 and between the chamber 12 and the casing 15, vanes 13, 16 are arranged to set the incoming fluid from the surrounding medium rotating in the same direction as the corresponding jet and the vanes are so shaped that a thrust is produced thereon in the same direction as the reactive thrust of the jet, adjacent vanes enclosing venturi shaped passages as shown in Fig. 14. Fig. 10 shows a larger jet comprising a series of units similar to Fig. 1 converging towards and surrounding a ring of eight jets arranged about a central aperture 39 and all discharging into an expansion chamber 30 surrounded by three rings 31 with inclined spacing blades 32. A central shaft 38 is supported by longitudinal and inclined blades 39, 40 and supports a blade wheel 36 driven by the jets to drive a smaller ring of blades 35 in the aperture 39 to prevent back flow therethrough. The shaft 38 may be utilized for driving auxiliary apparatus. The blade wheel 36 extends across the openings of the vanes 16 and increases the inflow of air or other surrounding medium. Similar, smaller blade wheels 37 rotate at the exits of the nozzles in the inner ring. Fig. 12 shows a similar arrangement in which blade wheels 37, 46, 47, 48, 53 are used at the exits of each casing and only one ring 31 is employed. The jet fluid supplied to the nozzles may be steam, combustion products or liquid under high pressure.
Patent GB-160534-A (GB)
Title: Improvements in and relating to multi-speed transmission gearing
IPC: F16H3/16
Filed: 1919-12-19
Abstract: 160,534. Gregoire, P. Dec. 19, 1919. Variable speed toothed gearing comprises aligned driving and driven shafts a, d, and a parallel countershaft k with fixed end gears l, o meshing respectively with a gear b fast on the shalt a and a gear j loose on the shaft d. Four speeds are obtained by gears e, f separately movable on the shaft d and adapted to mesh with middle gears m, n fixed on the shaft k for the middle speeds. Clutch faces g, h on the gears e, f adapted to engage like faces on the gears b, are used to obtain the extreme speeds. A pair of idlers q may be used for reversed driving.