baber/WOPTO huggingface dataset:
Patent GB-616103-A (GB)
Title: Process for recovering alumina and a residue rich in iron out of bauxites and similar ores
IPC: C01F7/164
Filed: 1946-08-27
Abstract: A method of extracting alumina from bauxites or similar aluminous ores comprises roasting a mixture of bauxite or ore with calcareous material forming calcium aluminates, e.g. 5 CaO 3 Al2O3, lixiviating the roasted product, e.g. with sodium carbonate solution to extract alumina therefrom, mixing the remaining material resulting from the lixiviation with a further charge of bauxite or ore, roasting the mixture and lixiviating and repeating these steps till a final residue is obtained having an iron content high enough to allow the extraction of iron therefrom.  The final residue may be mixed with an additional charge of bauxite or ore before being subjected to an operation yielding metallic iron and a slag from which further alumina can be obtained.ALSO:A residue rich in iron is produced in the process of extracting alumina from bauxite or similar aluminous ores which comprises roasting a mixture of bauxite or ore with calcareous material, lixiviating the roasted product so as to extract alumina therefrom, mixing the remaining material resulting from the lixiviation with a further charge of bauxite or similar aluminous ore, roasting this new mixture, roasting and lixiviating the product to extract alumina and repeating these steps till a final residue is obtained having the desired iron content.  The final residue may be mixed with an additional charge of bauxite or ore before being subjected to an operation yielding metallic iron slag from which further alumina can be extracted.ALSO:Hydraulic cements are produced from the residue resulting from the extraction of alumina and metallic iron from bauxites and similar aluminous ores.  The bauxite or ore is roasted with calcareous materials and lixiviated to extract alumina.  Further bauxite or ore is added to the residue and the roasting and lixiviation is repeated till a residue of high iron content is obtained.  This residue is smelted to obtain metallic iron therefrom and a remainder, rich in lime and practically deprived of iron is left.  A specific residue composition referred to contains Alumina 7.70 per cent, Silica 13.15 per cent, Lime 70.50 per cent.
Patent GB-825070-A (GB)
Title: Improvements in fluid pressure systems and apparatus
Inventor: MOULTON ALEXANDER ERIC
IPC: F16F9/08
Filed: 1956-08-23
Abstract: 825,070. Hydropneumatic vehicle spring suspensions. MOULTON DEVELOPMENTS Ltd. Nov. 25, 1957 [Aug. 23, 1956], No. 25777/56. Classes 108(2) and 108(3) Piston rod 2, connected to diaphragm 3 by a nut 4 and washers 6, 7, is moved into and out of cylinder 10 by wheel A through bell-crank lever 1. Hydraulic liquid is displaced by the diaphragm through pipe 12 connected to hydraulic accumulator 14. Damping may be controlled by variable valve 15. Specification 810,181 [Group XL(b)] is referred to.
Patent GB-1099866-A (GB)
Title: Inductive coupling apparatus
IPC: H03H2/00
Filed: 1966-06-09
Abstract: 1,099,866. Transformers. GEODYNE CORPORATION. June 9, 1966 [Sept. 9, 1965], No. 25818/66. Heading H1T. Apparatus 1 is supplied from a cable 4, by a current transformer having a split annular core 5, 5<SP>1</SP> held around cable 4. The magnetic core 5, 5<SP>1</SP> may be held in a non-magnetic (aluminium or plastic), block 6, 6<SP>1</SP>, which may be in two securable parts. The secondary winding is connected by leads L, L<SP>1</SP> to the external, water-tight terminals 8, 8<SP>1</SP> of the enclosed electric system 1. The apparatus and cable may be used in under-water operation.
Patent GB-1447453-A (GB)
Title: Flame or plasma cutting machine
IPC: B23K7/00
Filed: 1974-06-11
Abstract: 1447453 Cutting by fusion C-R-O ENG CO Inc 11 June 1974 [11 June 1973] 25818/74 Heading B3V [Also in Division G3] A flame or plasma cutting machine comprises longitudinally movable carriage 4 mounting spaced bridge units 3, 11, one of which includes a transversely movable carriage 17 supporting a plurality of cutting torches 9 and the other of which includes a transversely movable carriage 22 supporting a torch 13. The bridge unit 3 is connected at each end to a carriage unit 4, which units 4 are longitudinally movable along rails 6 by a motor 7. The carriage 17 includes a support plate 8 for the torches 9 and is movable along the bridge unit 3 by a motor 18 via a rack and pinion 19, 20. The other bridge unit 11 is releasably mounted on the carriage units 4 and the carriage 22 supporting the torch 13 is movable along the bridge unit 11 by a motor 23. The motors 7, 18, 23 are controlled from a photo tracer system or numerical controller (26) (Fig. 4, not shown) which is connected to a servo system (27) for controlling the carriage units 4, and which is selectively connectable by a switch (30) to either a servo system (28) controlling the carriage 17 or a servo system (29) controlling the carriage 22.
Patent GB-258644-A (GB)
Abstract: 258,644. Wood, R. June 22, 1925. Tyres, elastic, and tyre covers, tools for removing and replacing. - A turnbuckle tool for manipulating split rims for vehicle wheels comprises a pair of oppositely threaded members d, e fitting within a threaded sleeve a. Each member d, e is formed with an integral flattened extension k carrying spaced hooks j, both of which project on one side of the member, the tool being applied in use diametrically across the wheel rim with its hook-ended members engaging one over one side and the other under the opposite side of the rim. The turnbuckle has a slot g to receive an operating lever which is formed with a flat end for use in prising apart the rim ends. In a modification, a single adjustable member d, e is used with a sleeve formed with a hook-ended rim-engaging member. In assembling the tyre, the final expansion of the rim may be effected by utilizing the surfaces k between the hooks j i as thrust members.
Patent GB-279421-A (GB)
Title: An improved process for producing an alkaline-reacting nitrogen fertiliser
IPC: C05C7/02
Filed: 1927-09-30
Abstract: 279,421. Caro, N., and Frank, A. R. Oct. 23, 1926, [Convention date]. Manures.-An alkaline-reacting fertilizer consisting of granular calcium cyanamide is obtained by passing ammonia over calcium carbonate, or mixed carbonates such as dolomite broken up to the size of millet seed or peas and heated to 500-900‹ C. The reaction may be carried out under ordinary or increased pressure.
Patent GB-236791-A (GB)
Title: Improvements relating to saucepans and like cooking utensils
IPC: A47J36/08
Filed: 1924-10-30
Abstract: 236,791. Neale, E. C. St. J. B. Oct. 30, 1924. Lids and covers, saucepans; heating and cooking vessels. -The rim of a saucepan or like cooking vessel has two sets of perforations B, C coarse and fine respectively for straining purposes. The cover has rim portions E, capable of covering the perforations, and formed with shoulders G adapted to engage under pins H on the pan so that the cover may be held in place when in position to permit straining. A strainer member J may be suspended from the pins to allow the contents to be strained. According to the Provisional Specification, the fine straining is effected by means of a sieve adapted to be moved into place to cover the openings in the pan.
Patent GB-703695-A (GB)
Title: Improvements in or relating to methods of and apparatus for filtration
IPC: B01D35/16
Filed: 1950-10-26
Abstract: <PICT:0703695/III/1> In a continuous filtering process, for example for separating wax from a suspension thereof in a mineral lubricating oil, a filter medium under suction is passed in succession through a filtration zone in which a filter cake is formed on the filter medium, then through a washing zone consisting of a confined body of solvent liquid for the filtrate succeeded by a spray washing zone fed with the solvent liquid and then through a drying zone in which an inert gaseous medium, such as flue gas, is drawn through the cake; the liquid solvent may be, at least in part, supplied from the solvent of the spray zone running over the cake.  As shown, a rotary filter drum apparatus for carrying out the process comprises a hollow rotating cylinder 2 in a casing 1, the cylindrical filter surface such as fabric 6 of the filter being divided interiorly of the drum into separate segmental sections 5, each of which is connected by conduits 9, 10 and headers 7, 8 through ports in an end plate 12 of one of the trunnion supports for the cylinder to an annular valve 11. This valve is divided by means of valve blocks 14, 15, 16, 17 into a series of valve chambers A, B, C, D, E, and during rotation of the drum each segment 5 is connected in sequence to these chambers.  The annular space between the lower portion of the casing 1 and the drum 2 is divided into compartments X, Y by a radial dividing member 29 which is preferably located at 30 degrees to the vertical and extends longitudinally of the casing 1 and radially at the end portions thereof and extends towards the filter drum portions so as just to allow the passage of the filter cake formed on the drum in the compartment X.  The liquid suspension of solids, for example a cooled mixture of wax in a mineral lubricating oil and a solvent for the oil consisting of a mixture of ketone and aromatics, is supplied to the compartment X through a pipe 28 and the solvent mixture alone is supplied to the compartment Y through a pipe 25 and to the sprays 23 in such a way as to maintain the liquids in the compartments X, Y at a common level L.  On rotation of the drum in an anti-clockwise direction filtrate is withdrawn in the filtering zone from the chamber A through pipe 18 and solvent with the oil or mother liquor it has extracted as it is drawn through the cake in the washing zone is withdrawn from chamber B through the pipe 19 preferably at a higher suction value than that in pipe 18 and during the passage through the drying zone inert gas drying medium together with any of the washing liquid or solvent it has picked up is withdrawn from chamber C through pipe 21.  In chamber D a slight gas pressure is provided by pipe 22 to loosen slightly the filter cake prior to contact of the filter with the scraper 26 which dislodges the cake to fall into the trough 24 from which it is discharged by a rotary scroll 27.  The chamber E is a dead space.
Patent GB-416537-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B65B57/02
Filed: 1933-09-21
Abstract: 416,537. Wrapping - machines. SMITH, G. M. WAYLAND-, 41, Southernhay West, Exeter, and BUTLER, R. T., Marchants Barn, Hildenborough, Kent, (Representatives of BUTLER, SIR R. R. F.) Sept. 21, 1933, No. 26109. [Class 94 (i).] In order to prevent the issue of unwrapped tablets from a machine in which the ends of the wrapper are twisted to complete the closure, means are provided for separating them from the wrapped tablets after their delivery from the mould wheel of the machine. A plate 5 is mounted adjacent to the delivery position so that the mould wheel 1 rotates through a portion of an aperture 5<a> in the upper portion of the plate. Upstanding guides 6 at the edges of the aperture engage the twisted ends 3a of the packets and conduct them away between guides 5b. The width of the aperture is such that an unwrapped tablet, being unsupported by the ends of the wrapper, will fall through as shown at 4<a> into a shoot or receptacle 7. The guides 6 may be replaced by similarly arranged endless bands.
Patent GB-1312361-A (GB)
Title: Synchronized and continuously variable dc  power supply
IPC: H04N5/228
Filed: 1970-05-29
Abstract: 1312361 Converting HUGHES AIRCRAFT CO 29 May 1970 [4 June 1969] 26135/70 Heading H2F [Also in Division H4] A supply for providing a plurality of individually adjustable high voltages V1 ... V6 comprises a plurality of voltage regulators 21 ... 25, each voltage regulator being coupled via a respective inverter 31 ... 35 to a voltage multiplier rectifier 41 ... 45 supplying the required high voltage. The inverters 31 ... 35 are driven in synchronism. The invention is applicable to supplying high voltage electrodes of a composite zoom intensifier-vidicon tube (Fig. 1, not shown) each voltage regulator 21 ... 25 (Fig. 3, not shown) comprises a series complementary Darlington pair of transistors feeding a common unregulated D.C. supply to the respective inverters under control of two long tailed pairs of transistors which compare the regulated output with a control input. Each inverter comprises a pair of transistors driving a centre-tapped transformer the output of which is rectified by a voltage multiplier, the outputs of the multipliers being connected in series to provide a tapped supply of 20 kV. The inverter transistors are driven by a common master oscillator 36 comprising a multivibrator (Fig. 4, not shown) the output of which is divided by four by two bi-stable circuits. The multivibrator may be replaced by the horizontal synchronizing pulses of the system. The system may be controlled in dependence on light output.
Patent GB-657511-A (GB)
Title: Improvements in process for the treatment of waste liquors derived from cellulose manufacture
IPC: C01D7/30
Filed: 1948-10-07
Abstract: Inorganic components are recovered from aqueous waste liquors, such as black liquor and residual liquors from distillery molasses, by atomizing the liquor in the top of an unobstructed, heated zone; and introducing compressed air into the top of the zone in sufficient amount to cause partial combustion of the combustible components of the liquor and thereby maintain the temperature of the zone between 280 DEG  and 500 DEG  C.  The inorganic components are withdrawn in powder form, from the bottom of the zone.  The liquor may receive preliminary concentration (e.g. in a multiple-effect evaporator) and may be enriched, particularly when starting up the process, in combustible constituents, e.g. by p  adding a petroleum fuel-oil.  In order to overcome clogging, the liquor is introduced into the zone through a relatively large inlet; and the jet is then broken up into particles by tangential jets of steam, fuel gases or, preferably, compressed air issuing from orifices forming a conical sheet of large apex angle. Compressed air is also introduced into the zone with a gyratory component so that partial combustion of the particles of liquor occurs while they descend the zone in swirling suspension.  In the case of black liquor, the powdered inorganic components withdrawn from the base of the zone, may be fused in a crucible before being used in the treatment of a fresh batch of wood.
Patent GB-972977-A (GB)
Title: Benzodiazine and benzothiadiazine derivatives
IPC: C07D239/90
Filed: 1963-07-02
Abstract: The invention comprises compounds of the formula: <FORM:0972977/C1/1> wherein X represents -SO2- or -CO-, R1 represents hydrogen or alkyl, R2 represents alkyl, R3 represents hydrogen, alkyl or cycloalkyl, R4 represents alkyl or cycloalkyl, Y represents halogen (e.g. Cl, Br or F), a nitro group and/or an alkyl radical, and n represents 1 or 2. The above compounds are prepared by reacting a compound of the formula: <FORM:0972977/C1/2> with an amine of the formula HNR3R4. The above compounds are useful as fungicides. Specification 914,040 is referred to.ALSO:A fungicidal composition comprises a compound of the formula <FORM:0972977/A5-A6/1> wherein X represents -SO2- or -CO-, R1 represents hydrogen or alkyl, R2 represents alkyl, R3 represents hydrogen, alkyl or cycloalkyl, R4 represents alkyl or cycloalkyl, Y represents halogen (e.g. Cl, Br or F), a nitro group and/or an alkyl radical, and n represents 1 or 2, in admixture with a solid or liquid diluent or carrier.  Specified forms are emulsifiable concentrates, wettable powders, granules and dusts.  The compositions may contain non-ionic or anionic emulsifiers.  Specification 914,040 is referred to.
Patent GB-1167984-A (GB)
Title: Amine-Aldehyde Condensates
Inventor: HALL JOHN ALWYN
Filed: 1967-06-07
Abstract: 1,167,984. Amine-aldehyde condensates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 June, 1968 [7 June, 1967], No. 26320/67. Heading C2C. Amine-aldehyde condensates are prepared by reacting at least one aromatic amine with formaldehyde at a temperature of from 80- 190‹ C. in the presence of an amount of acid such that the molar ratio of amine to acid is less than 15 : 1, the reaction being carried out with simultaneous removal of water. The example describes the preparation of 4,4<SP>1</SP>- and 2,4<SP>1</SP>-isomers of diaminodiphenylmethane (and a small proportion of 2,2<SP>1</SP>-isomer) by the reaction of aniline with formaldehyde under the reaction conditions specified above. The condensates thus obtained may be converted to polyisocyanates by known phosgenation processes.
Patent GB-261895-A (GB)
Title: A new or improved brick or block making machine
IPC: B28B5/00
Filed: 1925-10-21
Abstract: 261.895. Robinson. F. W. L. Oct. 21, 1925. Moulds; templets - A portable machine for moulding bricks, blocks, &c. in situ comprises a bottomless compartmented mould slidably mounted within a wheeled frame having its long sides connected by a central bridge-piece carrying screw or lever mechanism for raising or lowering a bridge-piece connecting the longer sides of the mould. As shown, a mould frame o. slides vertically within a frame supported on wheels d, the sides c of the frame being connected by a bridge e supporting screw mechanism g, Fig. 1, or lever mechanism r, Fig. 4, connected to a bridge i, connecting the longer sides of the mould. Partitions b subdivide the mould. In operation, the mould is transported on the frame to the desired position, lowered on to the floor, and the compartments are filled with clay, concrete &c. which is pressed and levelled by devices m fitted with rollers n and scrapers o. After moulding, the mould is raised leaving the bricks &c. on the floor. By inserting a board &c. a second course of bricks &c. may be formed
Patent GB-176027-A (GB)
Title: Improvements in concrete or like building construction
IPC: E04B2/56
Filed: 1921-05-20
Abstract: 176,027. Gibson, T. May 20, 1921. Walls.-A building consists of precast concrete stanchions a and slabs f tongued and grooved together, and a band of concrete d cast in situ over the stanchions and slabs and preferably reinforced by rods e. Rods project from the stanchions into the band d. Holes may be formed in the intermediate stanchions and band to form a continuity of the air spaces in the hollow wall.
Patent GB-1415367-A (GB)
Title: Control valve assembly for fluid fuel burners
IPC: F23N1/00
Filed: 1973-06-04
Abstract: 1415367 Burners ASSOCIATED BRITISH COMBUSTION Ltd 29 March 1974 [4 June 1973] 26579/73 Heading F4T A A control valve assembly for an oil fuel burner comprises a first valve 2 for controlling the flow of fuel between an inlet 1 and an outlet 3 (not shown), second and third valves 5, 6 and a non- return fourth valve 7 in series for controlling the flow of a purging medium between an inlet 4 and the outlet 3 and a fifth valve 8 connected between a vent outlet 9 and the connection between the second and third valves. The first and third valves 2, 6 and the second and fifth valves 5, 8 are interconnected by parallelmotion linkages such that when valve 2 is open valve 6 is closed and vice-versa and when valve 5 is open valve 8 is closed and vice versa.
Patent GB-1164291-A (GB)
Title: Improvements in Electromagnetically-Propelled Vehicles.
Inventor: EASTON GEOFFREY JOHN
IPC: B60L13/03
Filed: 1966-06-15
Abstract: 1,164,291. Electric railway systems; air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. 8 June, 1967 [15 June, 1966], No. 26744/66. Headings B7K and B7L. An electromagnetically-propelled vehicle 1, Fig. 1, travels along a prepared track 2 having horizontal portions 3 and 4, Fig. 4, and an electrically conducting vertical part 5, the vehicle comprising a main body part 11, and a stator assembly 13 on each side of the track part 5 mechanically coupled together by a bridging link 29, the assemblies 13 being biased towards the track part 5 by telescopic dampers 19 and supported by links 14, Fig. 3, the assemblies also being maintained at a substantially constant distance from the track part 5 by air curtain bounded air cushions, supplied through tubing 33, 32 and ducts 22. The vehicle is supported from the track portions 3, 4 by known air cushion forming units 6. The propelling force of the linear induction motor, formed by the track part 5, and the stator assemblies 13, is transmitted to the body 11 by tie members 17. The windings 15 of the assemblies 13 are fed with polyphase current from a generator 30 driven by a motor 31. The latter also drives an air compressor 34 having an air intake 35 and supplying the cushion air to the ducts 22 via the tubing 32, 33. Should the air cushions of the stator assemblies fail they are held away from direct contact with the track part 5 by wheels 36. In another embodiment the stator assemblies co-operate with horizontal electrically conducting track parts at each side of the vehicle. These assemblies may be alternatives to those of Fig. 4 or may be additional thereto. Specification 1,002,588 is referred to.
Patent GB-1060223-A (GB)
Title: Process for the preparation of zirconium compounds and products resulting therefrom
Inventor: FEHR BERNARD HENRI PAUL
IPC: C01G25/02
Filed: 1964-06-29
Abstract: Zirconium values are recovered from the sodium silico-zirconate mass formed by sintering zirconium sand with sodium carbonate by treating the mass with 3 to 3.3 mols. of hydrochloric acid per mol. of silico-zirconate, removing the insoluble residue and precipitating basic zirconium sulphate by adding to the colloidal solution 0.5 mol. sulphate ions and at most 0.5 mol. fluoride ions per atom of zirconium and heating at less than 55 DEG  C., silica being retained in colloidal solution.  During solution the concentration of the sintered mass is maintained below 250 g./litre, e.g. by adding HCl to a suspension of the ground mass, and the temperature is maintained below 25 DEG  C.  Before precipitation the solution is diluted to 25-30 g. of ZrO2 per litre.  Sulphate ions are added as sulphuric acid and/or sodium sulphate to give a final pH of 0.75-1.2.  The basic zirconium sulphate is washed with water and may be calcined to convert it to zirconium dioxide, or converted to other zirconium salts.