baber/WOPTO huggingface dataset:
Patent GB-665941-A (GB)
Title: Control systems for electric motors driving centrifuges and the like
Inventor: DINLEY CLARENCE FRANCIS
IPC: H02P1/24
Filed: 1949-08-03
Abstract: 665,941. Control of A.C. motors; controllers. DETREX CORPORATION. Aug. 3, 1949. No. 20263/49. Class 38 (iii). A single-phase motor M which drives a centrifuge 5 or the like is accelerated in timed steps so as to allow the initially unbalanced load within the drum to be adjusted before the machine reaches its maximum speed. A timer motor M1 drives a cam shaft and is started by closure of push-button 67 which is shortcircuited bv cam-operated contacts 27a, 28a, to allow release of the button. Relays R, R1, R2, R3, are then operated in succession at timed intervals so that full line voltage is first applied to the driving motor to overcome the inertia of the drum and to accelerate the motor to a moderate speed. The motor voltage is then reduced by the connection of its armature to a tapping on an auto-transformer 9, the connection afterwards being shifted to a higher voltage-tapping. Finally, full line voltage is again applied to the motor which accelerates to its maximum speed. When the cam shaft has completed one revolution the motors M, M1, are de-energized and the cycle is completed.
Patent GB-225599-A (GB)
Title: Improvements in combined appliances for planting potatoes or the like and for distributing manure
IPC: A01C9/02
Filed: 1923-08-09
Abstract: 225,599. Doe, E. Aug. 9, 1923. Ploughs combined with steams for distribitting manure, seeds, etc.; adjusting parts.- Apparatus for attachment to a plough for planting potatoes or other seeds at regular intervals accompanied by charges of manure comprises a seed hopper provided with an auxiliary storage hopper having an endless-chain agitator and with an endless chain of cups for discharging the potatoes &c., and a manure hopper provided with a revolving agitator and endless chains carrying projecting plates or scoops tor discharging the manure. The agitating and discharging appliances are driven from a main shaft C connected with the land-wheel E of the plough by chain gearing, the height of the wheel E being adjustable by shifting a pin F passing through a hole in a plate G and one of a series of holes in a plate H. The chains carrying the plates K, Fig. 4, for discharging the manure from the hopper A, and the chain carrying cups L, Fig. 2, for discharging the potatoes &c. from the hopper B are driven direct from the shaft C and so that the manure and potatoes fall against inclined plates M, M<1>, M<2> which guide them to the furrow made by the front plough N. The agitating-appliances are driven from a shaft P connected with the shaft C by chain or other gearing. The agitator in the manure hopper A consists of a wheel provided with radial blades S, and that in the auxiliary potato hopper B' above the hopper B consists of an endless drum R<1> furnished with fingers or plates S' which pass. between guide or shield plates in the hopper as they move downwards.
Patent GB-1204775-A (GB)
Title: Process of preparing alumina from bauxite
Inventor: SIBERT FREDERICK JAMES
IPC: C01F7/0653
Filed: 1968-04-29
Abstract: 1,204,775. Alumina. NALCO CHEMICAL CO. 29 April, 1968, No. 20310/68. Heading C1A. Alumina is produced from bauxite by digesting the bauxite in aqueous solution at an elevated temperature with a strong base to dissolve the alumina, and separating the aluminate solution from water-insoluble impurities (red mud) by adding to the digested bauxite between 0.001 and 10 pounds per U.S. ton of wet red mud of an active ingredient which consists of a polymer having a molecular weight of at least 50,000 and containing at least 80% recurring units selected from acrylic acid and its salts, and precipitating alumina from the aluminate solution. The polymer may be a copolymer or interpolymer with, e.g., a monomer comprising an ethylenically unsaturated polymerizable compound containing a hydrophilic group, of which a number is listed.
Patent GB-1221022-A (GB)
Title: Treatment of a liquid by means of a gaseous fluid
IPC: C02F1/24
Filed: 1968-04-30
Abstract: 1,221,022. Aerating and agitating liquids; froth flotation apparatus. JONES & ATTWOOD Ltd. 30 April, 1968 [8 Dec., 1967], No. No. 20358/68. Headings B1C and B2H. Circulation apparatus for aerating and agitating a liquid comprises a container 1 (which may be closed) with a, draught tube 3, a helical impellar 18 for circulating liquid through the tube, and a tube 9 coaxial with the impeller shaft 11 down which gas is induced by a centrifugal pump constituted by a rotor 16 mounted on the shaft 11 and having radial blades 17, and a stator consisting of radial blades 15 mounted on the bottom of the tube 9. Incoming liquid is supplied to the interior of the draught tube 3 by conduit 19 and the liquid level in the apparatus is controlled by the overflow tube 21. The gas/liquid contact time may be altered by reversing the motor 12 and hence the direction of circulation. The apparatus is suitable for chemical and biological reactions and flotation separation.
Patent GB-660739-A (GB)
Title: Fluid dispenser and manufacture thereof
IPC: B67D1/04
Filed: 1949-08-05
Abstract: 660,739. Making fluid dispensers. TRIGGS, W. W. (Prel, Inc.). Aug. 5, 1949, No. 20390/49. Classes 83 (ii) and 83 (iv). [Also in Group XXVIII] Jointing by stamping. -A method of forming a pressure-fluid capsule is characterized by forming in the neck opening of a capsule shell a metallic closure element having opposed, inner and outer flange elements 13, 5 and insulating material between the inner flange and the shell, and electrically welding the outer flange to the surface of the shell. The closure element in form similar to a blind rivet, carrying an elastic ring 9 is placed in the neck opening of the shell and clinched by a rod 11 screwing at 12 in the element 3 and passing through an anvil 10. The upper flange is then welded to the outer surface of the shell. Apparatus for introducing propellant gas into the container during the sealing operation, Figs. 6 and 7, comprises a sealing ring 21 against which the capsule is held, a reciprocable anvil 23 and a rotatable screwed plunger 25. Gas under pressure is introduced through passages 28, 29 and the anvil 23 and plunger 25 are brought down to position the sealing element. Plunger 25 is then retracted to clinch the element, which is then finally fixed by welding.
Patent GB-1076874-A (GB)
Title: Gas blast circuit-breaker
IPC: H01H33/86
Filed: 1965-05-14
Abstract: 1,076,874. Gas blast switches. ETABLISSEMENTS MERLIN & GERIN S.A. May 14, 1965 [May 28, 1964], No. 20401/65. Heading H2B. A gas blast circuit-breaker of the type in which the contacts are first separated by a distance favourable to extinction of the arc produced by a short-circuit current, then pause while the arc is subjected to the gas blast and then move to a maximum distance apart as described in Specification 972,710 is modified so that the gas blast continues until after the maximum separation is reached. The bores 41, 60 in the valves 37, 46 which govern the period for which the blast valves 34, 25 remain open are calibrated so that at the end of the pause valve 25 closes bringing the contact 23 to the fully open position and a short while later valve 34 closes to shut off the blast. This is stated to improve the reversed phase interrupting ability of the switch, i.e. where currents are smaller and recovery voltages are higher than with a short-circuit.
Patent GB-1387094-A (GB)
Title: Tensioning device for flexible members
IPC: F16H7/08
Filed: 1973-04-30
Abstract: 1387094 Belt or chain tensioners YAMAKYU CHAIN CO Ltd 30 April 1973 [17 May 1972 (2)] 20403/73 Heading F2Q A belt or chain tensioner comprises a belt or chain engaging head 2 carried by a sliding member 3 which is urged in the direction of the belt or chain by a coil spring 4, and one side surface of the sliding member 3 is provided with a single indentation 5 which is adapted to be engaged by a plunger 8 in a retaining position of the plunger 8, Fig. 2, and is also provided with a series of indentations 6 which are adapted to be engaged by the plunger 8 when it has been turned through 180 degrees, Fig. 4, the tensioner then being in its working condition. Oil is supplied to the upper surface of the head 2 through passages 18, 20. In a modification, a slider 103 carries a bolt 118 on which a tensioning sprocket wheel 119 is rotatably mounted. Indentations 104 on the side of the slider 103 are adapted to be engaged by one or the other of detents 107, 108 formed on a pivotally mounted triangular member 105. A spring 11 maintains the member 105 in its selected position.
Patent GB-1440169-A (GB)
Title: Shearing machine
IPC: B23D31/02
Filed: 1974-05-09
Abstract: 1440169 Shearing SCHLOEMANN-SIEMAG AG 9 May 1974 [7 June 1973] 20425/74 Heading B3W In a rolling cut shear, the leading end 10 of the arcuate crank-driven blade 9 is preceded by a roller 13. Sheet 11, fed from right to left between shearing strokes by rollers 12, through a distance corresponding to the cutting length of the blades 3, 9, is still moving as the leading end 10 approaches the trailing end of the previous cut. The roller 13, projecting towards the fixed blade 3 slightly beyond the leading end 10, rolls along the severed sheet depressing it and so preventing the leading end 10 from scratching it. A roller 14 projecting slightly above the cutting edge of the fixed blade 3 and with its axis of rotation displaced relative to that of roller 13 supports the sheet.
Patent GB-1347865-A (GB)
Title: Process and apparatus for cooling hot gas/solids suspensions
IPC: C01B13/30
Filed: 1971-04-19
Abstract: 1347865 Cooling a gas/solids suspension BAYER AG 19 April 1971 [4 Feb 1970] 20479/71 Heading C1N [Also in Division F4] In apparatus for cooling a gas/solids suspension obtained by the gas-phase decomposition of metal halides with gases containing oxygen at elevated temperatures, a cold gas is added to the suspension through a water-cooled plate 2 via adjustable nozzles 6 or annular gaps in the plate and the mixture of gas and suspension is delivered into a cylindrical inlet pipe 9 which leads into the periphery of an enlarged waterjacketed cylindrical chamber 7 having a rotary, water-cooled scraper device 8 for exit through a cylindrical outlet 10 on the opposite periphery of the chamber. The direction of flow of the mixture from inlet pipe 9 is therefore abruptly changed and the rate of flow is reduced in the chamber 7 and thereafter again is abruptly changed in direction and given an increased flow rate through the outlet 10 which is of reduced diameter compared with the chamber 7.
Patent GB-1479581-A (GB)
Title: Method for producing alkali metal gold sulphites
IPC: C25D3/48
Filed: 1976-05-18
Abstract: 1479581 Alkali metal gold sulphites AMERICAN CHEMICAL & REFINING CO Inc 18 May 1976 [17 June 1975] 20502/76 Heading C1A Alkali metal gold sulphites are prepared by: (a) admixing an aqueous solution of gold (III) chloride with MgO to produce MgO particles having magnesium aurate thereon, the molar ratio of gold (III) chloride to MgO being from 1 : 2 to 1 : 6 and said solution being at a pH of at least 7À0; (b) admixing the MgO particles having magnesium aurate thereon with an aqueous solution of an alkali metal sulphite to produce alkali metal gold sulphite in solution and MgO, said solution having a pH of at least 10 and the molar ratio of magnesium aurate to alkali metal sulphite being from 1 : 5 to 1 : 14; and (c) separating the magnesium oxide from the alkali metal gold sulphite solution. Specified alkali metal sulphites are lithium, sodium and potassium sulphite. The potassium gold sulphite solution formed may be stabilized by addition of sulphamic acid or an alkali metal sulphamate.
Patent GB-1505016-A (GB)
Title: Tool holder for use in machine tools
IPC: B23B27/16
Filed: 1976-05-18
Abstract: 1505016 Cutting tools SECO TOOLS AB 18 May 1976 [20 May 1975] 20519/76 Heading B3B A tool holder for receiving a hard cutting insert 11 having a central aperture 16, comprises a shank 10 having an insert receiving site at one end, a pin 17 extending from the surface of the site for engagement with the aperture in the insert and a clamping member 20 for urging the insert into abutment with the pin to clamp it on the site. The clamping member has a recess 26, 27 of corresponding configuration to adjacent sides of the insert and is provided with serrations 29 which co-operate with corresponding serrations on the shank end. A screw 22 is provided to effect the clamping action between the member 20 and pin 17 and has a conical head portion 23 which engages with a conical portion 24 in an eccentric bore 25 in the clamping member whereby tightening of the screw in a threaded bore in the shank body 10 causes displacement of the clamping member along the serrations and urges the insert into clamping engagement with the pin 17 a spring 30 being provided in the bore 25 in the clamping member to facilitate the release of the clamping loads when the screw 22 is released to change the insert. The insert may be of triangular or rhombic configuration.
Patent GB-1342748-A (GB)
IPC: C08F2/02
Filed: 1971-04-19
Abstract: 1342748 Coating particles by polymerization EASTMAN KODAK CO 19 April 1971 [3 Feb 1970] 20562/71 Heading C3P [Also in Division G2]  Particles are coated by subjecting them in a fluidized state to a glow discharge treatment in the presence of a gaseous polymerizable material at 0À3-5 mm.Hg pressure. The particles are preferably of a magnetic material for use as carrier materials, mixed with toner particles, for developing electrostatic images in electrophotography. Suitable such materials are iron, cobalt, nickel, their alloys, ferrites, iron dispersed in a resin binder or a non-magnetic particle overcoated with ferromagnetic material, and preferably is of 30-1200 microns diameter. The ,polymerizable material is tetrafluoroethylene, trifluorochloroethylene, hexafluoropropylene, octafluorobutene-2, vinyl or vinylidene fluoride; hexafluoroacetone, acrylonitrile, styrene, ethylene, vinyl chloride, vinyl ferrocene, carbon tetrachloride, hexafluoroethane, methyl methacrylate, divinylbenzene, benzene, naphthalene or anthracene. The particles are preferably located between two parallel plate electrodes on a support which can be vibrated and a sufficient electrical potential is applied to the plates to form a glow discharge. The amount of polymer formed is such as to provide a coating 0À03- 0-2% by weight of the core and to give the particles a resistance greater than 10<SP>7</SP> ohms. The particles may first be subjected to the glow discharge in an inert atmosphere which is then replaced by the polymerizable material.
Patent GB-921526-A (GB)
Title: Refractory basic or neutral bricks and furnace linings
IPC: C21C7/10
Filed: 1960-06-10
Abstract: 921,526. Refractory bricks. VEITSCHER MAGNESITWERKE A.G. June 10, 1960 [June 12, 1959; Dec. 24, 1959], No. 20587/60. Class 51 (2). In a furnace lining comprising basic or neutral refractory bricks 10, 11 and 12 each brick has two halves 16 and 17 of differing materials surrounded by a sheet metal casing and completed by a plate 18. The dividing line may be formed by an insert which is later removed or the inset 20 may be left in the brick. The refractory brick 22, Fig. 2, comprises two halves 26 and 27 of differing materials separated by a corrugated insert 25 welded to a sheet metal casing 23 formed with a suspension tap 24. The refractory material may be magnesia or chrome-magnesia or magnesia-chrome with or without a binding agent.
Patent GB-939241-A (GB)
Title: Improvements in and relating to the manufacture of aluminium chloride
Inventor: WILSON HARRY BRIAN
IPC: C01F7/58
Filed: 1959-06-16
Abstract: Aluminium chloride is produced by fluidizing a bed of aluminium particles by passing an inert gas upwardly through the bed, and separately introducing into the fluidized bed chlorine or a mixture of chlorine and inert gas at a linear velocity of at least 10 times the linear velocity of the fluidizing gas through the bed, the temperature being from 100 DEG  to 600 DEG C. and the total rate of introduction of inert gas into the bed being at least twice the rate of introduction of chlorine into the bed on a volume basis. The fluidizing gas may be introduced through a perforated plate at the base of the bed and the chlorine or chlorine-containing gas may be introduced throught an inlet or inlets terminating in the bed and above the plate.  The inert gas for fluidizing the bed and for diluting the chlorine may be nitrogen or titanium tetrachloride; the chlorine-containing gas may be residual gases from a process for making titanium tetrachloride by reacting titanium dioxide with chlorine.  The aluminium chloride vapour so produced may be oxidized, preferably in a fluidized bed, along with titanium tetrachloride to form titanium dioxide particles containing 0,5 to 5,0% by weight of alumina.  Examples of the production of aluminium chloride are given.
Patent GB-960038-A (GB)
Title: Treatment of molten metals
IPC: C22B9/05
Filed: 1962-05-29
Abstract: <PICT:0960038/C6-C7/1> A unit for generating gas and suitable for use in the degassing of molten metal comprises a refractory container having a small neck opening 4 and charged with a material 3 which, at the temperature of molten metal, will generate a gas. The container has a heavy base 2 so that when gas issues from the opening 4 the container is driven by jet propulsion towards the bottom of the molten metal; after gas-generation ceases the container rises to the surface of the metal. The material 3 may be a carbonate, e.g. dolomite, or a fully chlorinated hydrocarbon, e.g. hexachlorethane.
Patent GB-239994-A (GB)
Title: Improvements relating to track trip devices for railways and the like
IPC: B61L3/04
Filed: 1924-09-03
Abstract: 239,994. Pearce, W. A., and Westing- house Brake & Saxby Signal Co., Ltd. Sept. 3, 1924. Track apparatus actuating signals on trains and for stopping trains.-A track trip member has its operative portion mechanically coupled or uncoupled from the mechanism for actuating the arm or lever. The coupling may be effected by a key. Fig. 2 shows a track trip mounted on a squared shaft 3 so as to be raised or lowered by connection to a hand lever. The trip is in two parts 1, 2 pivoted together by a pin 8 and normally held by a pin 10 which can be rotated by a key to allow relative motion between the parts 1, 2 enabling the operative member 2 to be moved clear of the train apparatus even though the lower part 1 occupies the danger position. A portion 11 of the pin 10 is cut away so as to allow this rotation in one position of the pin and to prevent it in another position. A detachable key, Fig. 4, is provided for rotating the pin 10.
Patent GB-305438-A (GB)
Title: Improvements in or relating to nail-making machines
IPC: B21G3/20
Filed: 1928-07-17
Abstract: 305,438. White, A. E., (Strowan Corporation). July 17, 1928. Forging nails; dies.-A nail making machine has three or more radially arranged point-forming dies actuated simultaneously to form a blunt point. The wire 55 is fed into the machine through straightening rolls by a feed lever 28 oscillated by a link 22 and crank disc 25 on the main shaft 7 and headed by a hammer 30 on a plunger 31 reciprocated by a pitman 32. The pointing dies 45, three in number, are mounted in holders 39 - - 41 sliding in guides 42 symmetrically arranged at angles of 120‹ about the axis of the wire and reciprocated by eccentrics 33 - - 35 on three parallel shafts 4 - - 6 driven by spiral gearing from the shaft 7. The dies 45 are mounted in dovetail grooves 43 in the die holders and are so adjusted by set screws 53 that they are spaced apart in their fully advanced position and form a truncated point f, Fig. 13, on the nail. One of the pointing dies 47, Fig. 9, carries a cutter 50 mounted in a dovetail 49 and adjusted by a set screw 51 to sever the wire just before the three pointing dies contact with it.
Patent GB-154671-A (GB)
Title: An instrument for the quantitative analysis of colour
IPC: G01J3/46
Filed: 1919-08-25
Abstract: 154,671. Bawtree, A. E. Aug. 25, 1919. Colorimeters.-Comprises a colour-measuring instrument in which light from a single source C is divided into two portions, one of which illuminates the article to be tested while the other portion passes through three or more adjacent coloured screens or filters, the amount of light passing through each screen being separately adjustable. The light passes along two chambers D, E lined with mirrors, through a ground glass screen F. A screen G fitted at about one-half of the length of the apparatus from the light source has a clear opening H in the chamber D and three openings in the chamber E, having blue, green and red filters. All these openings may be adjustable by sliding shutters indicating the amount of the opening on scales I, J, K, L. The colours may be compared by reflection from the object placed against the reflector O. With the synthesised colour on the reflector L, the object to be tested being viewed directly through an aperture Q in the reflector P. Transparent objects are tested by placing them against the ground glass screen N at the end of the tube D. To determine the amount of a single colour transmitted or reflected by a given object a filter of that colour is placed over the aperture H.
Patent GB-398628-A (GB)
Title: Automatic kiln drying apparatus
IPC: F26B17/22
Filed: 1932-07-25
Abstract: 398,628. Drying grain &c. MURPHY, J., Mill Place, Bandon, and BAND ON MILLING & ELECTRIC LIGHTING CO., Ltd., Bandon, Co. Cork, Irish Free State. July 25, 1932, No. 20977. [Class 34 (ii).] Apparatus for drying grain or like granular materials comprises a single horizontal stationary floor 1 heated by suitable means such as a coke fire, electrical means, or steam piping, and a plurality of horizontal arms 13 non- rotatable about their own axes, mounted so as to rotate about a vertical shaft 2, and provided with vertical paddles or blades 16 inclined at an angle to the direction of travel, for the purpose of turning the grain and moving it towards a discharge aperture or apertures 21. The mechanism for driving the arms 13 consists of a worm wheel 5 keyed to the shaft 2 and driven by a worm 6 mounted on a horizontal shaft 7 driven through the intervention of a flexible coupling 8. A second worm reduction mechanism 9 is driven by a pulley 10, which is in turn driven by a belt from a prime mover. The whole operating mechanism is mounted, preferably as a unit, on girders 11 supported at their ends on the kiln walls 24. The blades 16 are set in staggered relation in the successive rotating arms. Instead of arranging all the blades at the same angle as shown, the angle may be reduced in successive blades from the centre to the periphery of the rotating arm, so as to achieve an even height of grain. A blade 20 is placed at the extremity of each arm 13 at right-angles to the direction of motion, in order to sweep the grain towards the apertures 21. Instead of the arrangement shown, the discharge apertures may be arranged in the centre of the floor, the grain being fed thereto at the periphery instead of at the centre. In another alternative form, the end blades 20 and the apertures 21 can be eliminated, the grain being pushed over the edge of the walls of the kiln floor down inclines into suitable scoops and shoots. Instead of a floor of perforated tiles 22 as shown, a floor of wire mesh or imperforate sheet metal may be employed.