baber/WOPTO huggingface dataset:
Patent GB-448684-A (GB)
Title: Improvements in or relating to fans
IPC: F04D29/28
Filed: 1936-02-17
Abstract: 448,684. Centrifugal fans. STURTEVANT CO., B. F., 6, Damon Street, Hyde Park, Boston, U.S.A.-(Assignees of Leonard, M. S.) Feb. 17, 1936, No. 4792. Convention date, Feb. 21, 1935. [Class 110 (i)] Abrasive material carried by the air flowing through a centrifugal fan escapes through a slot extending axially across the face of each of the impeller blades. The slots are formec by setting the outer portion: 12 of the blades in advance of the inner 14. The inner portions are forwardly curved and the outer portions are radial. Specification 438,846 is referred to.
Patent GB-753677-A (GB)
Title: Improvements in or relating to processes for the production in converters of steels low in phosphorus, nitrogen, and oxygen
IPC: C21C5/34
Filed: 1954-02-18
Abstract: A process for the production of Bessemer steel low in nitrogen phosphorus, and oxygen from an iron containing .0,1 - 0,7.per cent.P .0,4 - 1,0.per cent.Si .1,5 - 2,5.per cent.Mn .3,8 - 4,5.per cent.C comprises blowing the iron in a single stage in a bottom blown converter with oxygen enriched air or an exothermic oxygen-steam mixture and adding lime and ore or mill scale through the top of the converter.  The lime and ore or mill scale may be added at the beginning or not later than half-way through the process, all at once or in portions, the total amount of ore or mill scale being at least 40 kgs. per 1000 kgs. iron.  The oxygen enriched air may contain 28-45 per cent oxygen by volume and the oxygen-steam mixture may have an oxygen-steam ratio of 1 : 1 to 1 : 1-2.  The lime may be mixed with the ore or mill scale and fluorspar may also be added as a flux.
Patent GB-414780-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D21/02
Filed: 1933-02-16
Abstract: 414,780. Steam turbines. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and COLLINGHAM, R. H., 81, Hillmorton Road, Rugby. Feb. 16, 1933, No. 4802. [Class 110 (iii).] In order to prevent racing of turbines when the load is suddenly reduced, means are provided for cutting out or reducing the period of lag of the governor before the steam admission valve commences to close. In operation these means close the admission valve quickly independently of the governor, which subsequently regains control. In Fig. 1, the admission valves 2 are positioned during normal running by an oscillating-vane type servo-motor 7 controlled by a pilot-valve 14 which is influenced by a speed-governor 8 through linkage 9, 10, and a sleeve 11 which regulates the oil-leakage port 12 in the hollow movable centre part 16 of the valve. Normally, pressure oil passing through small ports 15 keeps the centre part 16 in a raised position against the action of a spring 13. A pipe 24 connects the space beneath the centre part to a valve 17, which is normally closed to maintain the pressure in this space. If, however, the load on the turbine is suddenly reduced, a solenoid 18 is energized, the valve 17 is opened thus releasing the pressure beneath the centre part 16, and this part is forced down by the spring 13. The pilot-valve now supplies pressure oil to the servo-motor to close the steam admission valves independently of the governor. The solenoid 18 may be energized when a switch 19 is closed as by the opening of the main switch 23 of the generator circuit. The follow-up rack-rod 6 has a contact 22 adapted to open a switch 20 in the circuit of the solenoid 18 in order to de-energize it as the valves 2 close, so that the governor may again take up control under idly-running conditions. A switch 21 is provided for breaking the circuit on starting-up on no-load, as with the switch 32 open. Fig. 2 shows a modification in which a governor-controlled pilot-valve 36 positions the servo-motor piston 34 of the turbine admission valve 32 under normal conditions, and in which a second pilot-valve 46 is provided. Normally this second valve is inoperative, but should the load be decreased suddenly, as by the opening of the main generator switch 44, a solenoid 49 is energized and lifts the centre-part of the pilot valve 46, so that the pilot-valve 36 is rendered inoperative, and at the same time, pressureoil is admitted to the servo-motor in order to close the valve 32. A contact 40 on the servomotor rod is arranged to open a switch 42 in the circuit of the solenoid 49 as the valve 32 closes in order that the pilot-valve 46 may return to normal position and allow the governor 38 to take up control under idly-running conditions. A switch 41 is provided for breaking the circuit on starting up on no-load.
Patent GB-1162062-A (GB)
Title: Phosphoric Acid Purification
IPC: C01B25/234
Filed: 1967-02-01
Abstract: 1,162,062. Purifying phosphoric acid. FMC CORP. 1 Feb., 1967 [1 Feb., 1966; 1 June, 1966], No. 4868/67. Heading C1A. H 3 PO 4  obtained by treatment of phosphatic ores with H 2 SO 4  is purified by extraction with an organic solution of an alkyl, alkoxy alkyl, aryl, or alkaryl phosphate, in amount sufficient to extract 50-85% of the P 2 O 5  values. The organic H 3 PO 4  solution so obtained may then be scrubbed with a pure aqueous H 3 PO 4  solution, e.g. product acid (the used acid being mixed with the crude acid) and is finally stripped with water, which may contain an alkali metal carbonate or hydroxide. The following volume ratios may be used: Organic phosphate : organic solvent .. .. .. 10 : 1 to 0.5 : 1 Organic phosphate solution : crude acid .. .. 1 : 1 to 10 : Organic H 3 PO 4  solution : aqu. H 3 PO 4  solution .. .. 1.0 : 1 to 40 : 1 Scrubbed organic H 3 PO 4  solution : water .. .. 5 : 1 to 12 : 1 The processes may be effected in countercurrent in mixer-settlers, agitated columns or centrifuges, at 20-100‹ C. Suitable organic phosphates and organic solvents are listed (preferred are tri-n-butyl phosphate in kerosene or n-hexane). The crude acid may be treated with ground phosphate rock and Na 2 CO 3  to precipitate Na 2 SiF 6  and CaSO 4 . The product acid may be heated at 110-150‹ C. to vaporize F values, and may be decolorized with charcoal. The stripped organic solution may be purified with active charcoal, alkali wash, or distillation, and recycled. The aqueous raffinate may be used to produce fertilizers, e.g. triple superphosphate.
Patent GB-425851-A (GB)
Title: Driving means for the spindles of lathes and like machine-tools
IPC: B23Q5/14
Filed: 1934-02-14
Abstract: 425,851. Controlling change speed gearing. HERBERT, SIR A., LLOYD, A. H., and LEONARD, C., c/o Herbert, Ltd., Canal Road, Edgwick, Coventry. Feb. 14, 1934, No. 4871. [Class 80 (ii)] In lathe or like machine spindle drives of the kind which includes change-speed gearing, friction clutches and interlocking means such that the change-speed mechanism cannot be actuated to introduce a gear train except when the drive has been disconnected by one of the clutches, the change-speed mechanism comprises at least two movable elements through which different gear trains are introduced operable by the same control and so arranged that while one element is in train the others are positively held out of train. The drive from the pulley 12 passes through friction clutches 14, 16, operated by a fork 19, for a reversing gear 17, then through the shaft 15 to the twospeed gear 25, 26 also controlled by friction clutches 28, 29 and via the gear pair 31 to twin gears 33, 34 which drive the machine spindle 35. The fork 19 for the reverse gear is fixed to a rod 20 operated by a hand lever 21. A block 53 on the rod actuates a friction brake when the lever is in its neutral position and a notch in the rod allows an interlock rod 41 to move vertically in this position and permit the twin gears to be moved. The latter are controlled by forks 40 having projections 39 which engage a cam-groove in the rotatable disc 37 ; this is arranged so that only one set of gears can be engaged at a time and the interlock rod 41 prevents the cam disc being moved until the drive is disengaged. The reversing drive or the multiplying-gears 25, 26, may be dispensed with ; in the former case the interlock bar 20 would be connected to the fork controlling the friction clutches 28, 29. Specification 410,376 is referred to.
Patent GB-928752-A (GB)
Title: Identification tag device
IPC: B29C53/32
Filed: 1962-02-08
Abstract: 928,752. Identification tags. S. O. STORER. Feb. 8, 1962 [Feb. 8, 1961; Aug. 11, 1961], No. 4969/62. Class 73. An identification tag comprises a strip of resilient synthetic plastic material, e.g. polyvinyl chloride, having a convolute or spiral portion 25, Fig. 4, adapted to embrace and resiliently grip an object 27 and a projecting limb portion 26 adapted to bear indicia. The portion 26 may be of arcuate or angled transverse cross-section and the free pointed end 29, Fig. 8, may be inserted through a slot 31 in a price ticket 30 which is retained thereon by a lug 32 cut and bent up from the portion 26. The tags may be formed using a hollow metal cylinder 4, Fig. 2, removably mounted between two spindles 5, 6 and having fitted to it a resilient brass sheet 15 terminating in a cylindrical handle 16. A polyvinyl chloride sheet 21 is partially divided into strips 22 and placed on the brass sheet 15. The cylinder 4 is then rotated to form a part of the sheet 21 into a spiral portion which is held by the brass sheet 15 and then the whole unit 4, 15, 16 and sheet 21 are dipped in hot water and subsequently cooled, the sheet 21 then being broken up into individual tags. Alternatively the sheet 21 can be heated before being placed on the brass sheet 15.
Patent GB-101385-A (GB)
Title: A Mechanical Dancing Doll for Disc Talking Machines.
Inventor: ROBERTS MARY
IPC: G11B33/06
Filed: 1916-04-05
Abstract: 101,385. Roberts, M. April 5, 1916. Dancing-doll actuated. from turntable spindle.- A dancing-doll actuated by a gramophone is supported on a pin d passing through a platform e, which extends at one end over the centre of the gramophone disk and at the other end is supported by a weighted base h. A loose disk a fits over the centre pin of the gramophone and rotates a boss b. Pins on the boss oscillate a lever c connected to the pin d and thus give a dancing movement to the doll.
Patent GB-118241-A (GB)
Title: A New or Improved Case or Receptacle for Containing Cigarettes, Treasury Notes, and other such Articles.
Inventor: LEVI SAMUEL JOSEPH
IPC: A24F15/12
Filed: 1918-03-21
Abstract: 118,241. Levi, S. J. March 21, 1918. Fittings, internal; opening-arrangements; card and like cases.-A case for cigarettes, Treasury notes, &c. comprises two hinged cover elements a, b fastened bv a catch d and provided with elastic strips f held in ears c, e<1> on flange portions c, c<1>. A metal plate g, hinged co-axially with the parts a, b, has a pivoted fastener k, which is adapted, when the plate is shut to enclose notes &c. in the member a, to engage under the flange c, the strip f becoming distended into the member a, so that, in releasing the fastener k, it moves the plate g up to a position from which it may be readily lifted by the finger &c. The ears c may be bent inwards, and the plate g has recesses g<1> permitting it to be folded into the member a and also a finger-notch g<2>. Cigarettes &c. may be placed in the member b. The plate g may be adapted to be fastened to either of the members a, b.
Patent GB-980065-A (GB)
Title: Method of treating asbestos
Inventor: COHN MORRIS IRVIN
IPC: B03B9/00
Filed: 1962-02-09
Abstract: A method of fiberizing fibrous mineral particles comprises forcing a flowable aqueous slurry of said mineral particles in the form of a film edgewise through a gap under a pressure of at least 100 p.s.i. Minerals referred to are asbestos, talc, serpentine and other fibrous magnesium silicates.  The process may be effected in the apparatus of Fig. 2, wherein a slurry is formed in tank 4 and is pumped by unit 10 into passage 22 and against member 24, which is pressed towards seat 26 by heavy spring 23.  The slurry forces open gap 28 and flows therethrough, impinging on annular impact ring 30 and passing through passage 29. Apparatus having a rotating valve and impact ring may also be used.  The discharge may subsequently be classified in a hydrocyclone or other wet classification means, thickened, dewatered and dried. The slurry may be pretreated, e.g. by a Humphrey spiral, to remove iron compounds and unwanted non-fibrous gangue. <PICT:0980065/C1/1>
Patent GB-1261221-A (GB)
Title: Gas diffusion electrodes for batteries
Inventor: FUKUDA M
IPC: H01M4/86
Filed: 1969-01-29
Abstract: 1,261,221. Gas-diffusion electrode. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 29 Jan., 1969 [31 Jan., 1968; 29 March, 1968; 20 Sept., 1968; 26 Dec., 1968], No. 5042/69. Heading H1B. A gas-diffusion electrode comprises a highly porous sintered metal body 1, e.g. nickel with a catalyst, e.g. Ag and a water-repellent, e.g. a fluorocarbon resin incorporated therein, and a first layer 2, formed on the gas surface side of the electrode body, which comprises an electrolyte repellent powder, e.g. acetylene black, graphite, nickel oxide or aluminium oxide, and a binder such as polyethylene, polystyrol, or a fluoro-carbon resin, and a second layer superposed on the first layer which is water-repellent. The second layer may comprise a layer of fluorocarbon resin 3 and a further layer 10 of the fluorocarbon resin may be bonded thereto under pressure. Alternatively, non-woven fabrics of for example polypropylene and polyethylene and fabrics of polyvinyl chloride and polyamide fibre which are impregnated with a water-repellent such as paraffin or polyethylene may be used. More than one layer of non- woven fabric may be used and fluorocarbon resin powder is preferably interposed between each layer.  The electrode can be used as an air diffusion electrode in an air-hydrazine or air-hydrogen fuel cell.
Patent GB-639091-A (GB)
Title: Improvements in rotary pumps
IPC: F23K5/00
Filed: 1948-02-20
Abstract: 639,091. Filters. TUTHILL PUMP CO. Feb. 20, 1948, No. 5109. Convention date, Feb. 20, 1947. [Class 46] [Also in Group XXVI] A filter unit comprises a support plate 22 with two wire cores 26, surrounded by filtering material each core being held in position by a spring and supported by wire 31 with bent-down ends 33 secured to a washer 34.
Patent GB-591491-A (GB)
Title: Improvements in or relating to fuel supply systems for internal combustion engines
IPC: F02B33/00
Filed: 1942-04-20
Abstract: 591,491. Carburetters. UNITED AIRCRAFT CORPORATION. April 20, 1942, No. 5284. Convention date, Nov. 4, 1939. [Class 7 (iii)] In engines having a supercharging-impeller 22, Fig. 2, fuel is supplied under pressure at 56, 58 to an annular recess 62 and small bores 64 in stationary collar 60, the fuel collecting in a rotating annular member 72 with inturned lip 76, so that the fuel is caused by centrifugal force to escape between the end of the collar 60 and the lip 76 and impinge on an annular pin 78 formed on the collar, so as to become intimately mixed with the air passing through the passages 54 of the supercharger. Sealing-rings 68 prevent escape of the fuel. In a modification the collar 60 is made of less, and the member 72 of greater, width axially, and the pin 78 is replaced by an annular vane. Vanes may also be provided in the member 72 for causing positive rotation of the fuel therein. Fig. 4 shows another form in which the fuel enters a -recess 100 leading to the rotary annular member 92 formed with a conical flange 94 having rows of orifices 114, 116, 118 of increasing size. When the supply of fuel is low, it is contained in the outermost part of the member 94, owing to centrifugal action, and escapes only through the smallest orifices 114 ; but as the fuel supply increases, the other orifices 116 and 118 come into action successively. The air passages 54 of the supercharger may be provided with directing-vanes 110.
Patent GB-541365-A (GB)
Title: The manufacture of aldehydes and other oxygenated organic compounds
IPC: C07C45/51
Filed: 1940-03-21
Abstract: 541,365. Aldehydes. DREYFUS, H. M arch 21, 1950, No. 5301. [Class 2 (iii)] Aldehydes are produced by contacting halogen derivatives of olefines with a heating bath of zinc chloride containing suspended zinc oxide. Olefine oxides and ketones may be formed in addition; for instance, ethylene oxide may be formed from an ethylene derivative and acetone from a propylene derivative. Suitable derivatives are the chlorhydrins and chlorides. Preferably some water is present, such as one molecule or more for each molecule of the halogen compound. The halogen compound may be pre-heated to near or even above the temperature of the bath and the pressure is preferably about atmospheric or lower. A diluent such as nitrogen, carbon dioxide or hydrogen may be used. In an example, for the production of acetaldehyde ethylene chlorhydrin is passed through a bath of zinc chloride containing 20 per cent. of zinc oxide and 5-7 per cent. of water at 250-255‹ C., the ethylene chlorhydrin containing enough water vapour to maintain the composition of the bath constant.
Patent GB-556863-A (GB)
Title: Improvements relating to automatic shut-off valves
IPC: F16K17/30
Filed: 1942-04-22
Abstract: 556,863. Valves. ACROTORQUE CO. April 22, 1942, No. 5417. Convention date, May 16, 1941. [Class 135] A valve device closed against a spring load by the rush of fluid has an adjustable stop to limit its opening and spring catches for locking it in its closed position. The valve casing 7 is externally threaded on either side of a flange 8 with a hexagonal periphery whereby it is mounted between the ends of two pipes 5, 6. Internally one end is coned at 12 to provide a seat for the tapered valve 11 which is formed with spring fingers 13. Normally the tapered ends of these fingers slide. in a cylindrical bore in a partition 9 with arcuate passages 10 inserted in the member 7. When the valve is closed by the rush of fluid the ends of the fingers snap over the end of the partition to hold the valve until the pipe joint is broken and the valve manually opened. A cap 16 with a screw-driver slot 17 is adjustably secured to a spindle 15 fixed to the valve member and co-operates with the partition 9 to limit the opening of the valve.
Patent GB-1114635-A (GB)
Title: Tank contents measuring device for motor vehicles
IPC: G01F23/64
Filed: 1967-02-03
Abstract: 1,114,635. Fuel filter. V.D.O. TACHOMETER WERKE ADOLF SCHINDLING G.m.b.H. 3 Feb., 1967 [4 Feb.. 1966], No. 5436/67. Heading B1D. [Also in Division G1] A combined fuel filter and level indicator for a .motor vehicle fuel tank comprises a tube 8 bolted to the tank cover I and carrying an upward flow fuel filter 11 at its lower end, tube 8 being divided by plate 13 into a suction chamber 10, into which tube 6 to a fuel pump opens, and float chamber 12, in which float 5 is located. Apertures 9 enable the level in the float chamber to equal that in the surrounding tank, and float 5 short circuits a pair of vertical resistance slide wires to indicate level. Plate 13 is removable from tube 8, and filter 11 fits into plate 13 (Fig. 3, not shown), its frusto-conical peripheral flange (15a) being engaged by locking dogs (13b). Cover 1 fits on to tank wall 3 by bayonet joint 2.
Patent GB-912601-A (GB)
Title: Improvements in or relating to electrical apparatus
IPC: G05G1/12
Filed: 1960-02-16
Abstract: 912,601. Securing knobs on spindles. GENERAL ELECTRIC CO. Ltd., and WILSON, E. Feb. 16, 1961 [Feb. 16, 1960], No. 5455/60. Class 80 (2). A control knob 6 for electrical apparatus, such as a potentiometer, which projects through a slot 21 in a cabinet panel 2 for rotary adjustment, is coupled to a spindle 5 by pins 12 which engage a bush 7 secured to the spindle by a grub-screw 18, the bush 7 passing through a rectangular opening 8 in the knob. To remove knob 6 from spindle 5 grub-screw 18 is released and bush 7 slid along the spindle, the opening 8 allowing the knob to pivot about pins 12, the edge of the knob remaining engaged in slot 21 but tilting therein as permitted by the chamfered edge. The knob 6 is formed from two circular plates 9, 11 secured together by rivets 11 and formed with recesses for the reception of the pins 12.
Patent GB-1176272-A (GB)
Title: Cageless Roller Bearing for the Spider Journals of Universal Joints or the like
Inventor: ENDE EBERHARD
IPC: F16C35/06
Filed: 1968-02-02
Abstract: 1,176,272. Bearings. GELENKWELLENBAU G.m.b.H. 2 Feb., 1968 [3 Feb., 1967], No. 5521/68. Heading F2A. In a cageless roller bearing for an oscillating shaft 1, rollers 3 are held under axial tension by means of a pair of resiliently-yielding rings 5. In an embodiment two series of rollers 3 are provided and a spacing-disc 4 is positioned therebetween. An outer race 2 has an integral internally-directed radial flange 6 which supports one of the rings 5 and has a capportion which supports the other ring 5. The rings 5 axially locate the rollers 3 and restrict the rotation thereof when the rollers are unloaded. This enables the series of rollers to progress to a new starting position in readiness for the rollers being reloaded.
Patent GB-101259-A (GB)
Title: Improvements relating to Apparatus for Controlling the Flow of Gas.
Inventor: SIMMANCE JOHN FREDERICK
IPC: C10B27/06
Filed: 1916-04-17
Abstract: 101,259. Simmance, J. F. April 17, 1916. Fluids, regulating volume of flow of.-In a device for maintaining a constant flow of gas through a discharge orifice irrespective of changes in the pressure and temperature of the atmosphere, the head over the discharge orifice is regulated by means of an expansible chamber containing a definite mass of air. In the form shown, the discharge orifice 5 is formed on a tube 4 adjustably mounted in a tube 3 carried by a bell B. The bell is counterbalanced bv weights W<1>, W<2> and dips into a seal contained in a tank C. Gas is supplied to the tube 3 by a pipe 2. The vessel A containing a fixed mass of air is provided with a cock 7 for use in adjusting the apparatus, and is connected to the side of the bell by a pipe 1. In a modification, the pipe 4 is mounted on a lever actuated by a sealed bellows.
Patent GB-358402-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K7/16
Filed: 1931-02-23
Abstract: 358,402. Motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. - (Assignees of Soc. Generale de Constructions Electriques et Mecaniques Alsthom; 146, Avenue des Champs Elysees, Paris. ) Feb. 23, 1931, No. 5638. Convention date, Feb. 21, 1930. [Class 35.] Induction machines; mounting rotors; cores.-A high-speed motor with a vertical shaft mounted so as to have a certain amount of play and be selfbalancing is formed with a flat air gap, which is stated to produce an electromagnetic damping of the oscillations of the shaft. In the arrangement described, the shaft G is mounted on bearings in a sleeve B, which is supported with a certain amount of play in a casing A containing lubricating oil. The stator consists of a core C with radial slots in which are arranged windings D and the rotor H of a disc with radial slots containing conductors connected by short-circuiting rings K. Both the rotor and stator cores may be formed of sheet metal coiled spirally.