baber/WOPTO huggingface dataset:
Patent GB-959732-A (GB)
Title: Improvements in or relating to the recovery or purification of metals by liquid-liquid extraction
IPC: C22B3/32
Filed: 1962-08-31
Abstract: Metals are extracted from aqueous solutions of their salts, by conversion to salts of aliphatic a -halogen carboxylic acid (5-19 C atoms) which are extracted by a water-immiscible organic solvent, and the metals are recovered by treatment with aqueous acid. Nickel, cobalt, copper, manganese, chromium, gold, silver, titanium, aluminium, beryllium, zinc, cadmium, iron and lead are mentioned and a -bromo-fatty acids are preferred.  The metals may be extracted from andes, e.g. acid leach liquor, concentrated in aqueous solution, purified and concentrated by preferential extraction, and leach liquors of complex ores may be separated. Calcium oxide or hydroxide or rock carbonates may be used to adjust the pH of the aqueous phase and kerosene, commercial xylenes and halogenated hydrocarbons may be the solvents.  Examples describe the separation of copper from ore leach solutions with a -bromolauric, a -bromomyristic, a -bromoheptanoic, a -bromopalmitic, a -chlorolauric and a .a -dichlorolauric acids; the extraction of ferric iron from sodium sulphate solution, of nickel from cobalt sulphate solution and of aluminium from cobalt chloride solution with a -bromolauric acid; the selective extraction of copper, iron and zinc from an aqueous solution leached from a sulphatized roast ore with a -bromolauric acid; and the extraction of aluminium from aqueous aluminium sulphate with a -bromo-lauric acid.ALSO:Metal salts of aliphatic a -halogen-carboxylic acids containing 5-19 C atoms are used to extract metals from aqueous salt solutions in a process for the purification or recovery of the metals. Nickel, cobalt, copper, manganese, chromium, gold, silver, titanium, aluminium, beryllium, zinc, cadmium, iron, and lead are mentioned and a -bromo fatty acids are preferred. The salt is extracted with a water-immiscible organic solvent and the metal recovered by treatment with aqueous acid. Examples describe the separation from ore leach solutions of copper with a -bromolauric, a -bromopalmitic, a -chlorolauric, a ,a 1-dichlorolauric acids and iron, cobalt, and aluminium with a -bromolauric acid.
Patent GB-1009414-A (GB)
Title: Sludge remover for sedimentation tank
IPC: B01D21/06
Filed: 1964-08-17
Abstract: 1,009,414. Removing sludge. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Aug. 17, 1964 [Aug. 23, 1963], No. 33585/64. Heading BID. Sludge is removed from a sedimentation tank by two chains 6 and 7 attached to a revolving central guide 8, the links of the chains being formed as scraper blades. The chains are moved over the tank bottom by means of a rotating motor driven beam 10 and carry the sludge to a central sludge hopper for removal. The addition, removal or lengthening of the chain links alters the shape assumed by the chain. The heights of the individual blades may decrease towards the tank periphery.
Patent GB-506185-A (GB)
Title: Improvements in or relating to stays adapted to be interposed between pans
IPC: A21B3/13
Filed: 1937-12-04
Abstract: 506,185. Baking pans; joining sheet metal. KATZINGER CO., E. Dec. 4, 1937, No. 33628. Convention date, Feb. 23. [Class 28 (i)] [Also in Group XXII] A sheet-metal stay for spacing a Dair of baking-pans is shown in Fig. 2 as it is before it is deformed into its final shape which is shown in Fig. 3. Each end of the stay is provided with parallel flanges 16, 17, and a tongue 15 which is struck up to lie in the channel formed by the flanges 16, 17. The middle portion 19 is arched, so that, when the stay is deformed, the flange 16 passes around between the bead wire 12 and the pan flange 13 which becomes bent outwardly away from the pan to be gripped between the flange 17 and the bottom of the channel. The tongue 15 becomes flattened down on the bottom of the channel and the flange 13 is bent down on each edge of the tongue whereby movement of the stay along the bead is prevented.
Patent GB-166854-A (GB)
Title: Method of preparing coloured dental cements
IPC: A61K6/06
Filed: 1920-11-29
Abstract: 166,854. Stelzer, K. Nov. 29, 1920. Teeth, stopping.-Coloured dental cement is prepared by mixing pigment with alcohol or other neutral volatile liquid to match the colour of the tooth, adding cement liquid after the evaporation of the alcohol, and then adding the cement powder. In a modification, pigment and cement powder are mixed with alcohol and then cement liquid is added.
Patent GB-635229-A (GB)
Title: Improvements in or relating to fractional frequency generator
IPC: H03B19/12
Filed: 1946-11-13
Abstract: 635,229. Valve generating circuits. SUBMARINE SIGNAL CO. Nov. 13, 1946, No. 33689. Convention date, Dec. 27, 1945. [Class 40 (vi)] In a frequency dividing circuit of the type in which the output frequency is heterodyned with the input frequency to produce the output frequency, the regenerative feedback circuits include a bridge made up of resistors 25, 26, 27 and a rectifier or varistor ring 23, which acts as a resistance, whose value depends on the magnitude of the input signal. The bridge is balanced or unbalanced in a sense to provide negative feedback for no signal input by varying resistor 25. As shown, two stages are provided, each dividing by two. U.S.A. Specification 1,690,299 is referred to.
Patent GB-907205-A (GB)
Title: Improvements in or relating to arc initiation
Inventor: SNELL ALFRED EDWARD COURTNAY
IPC: B23K9/067
Filed: 1959-10-05
Abstract: 907,205. Control systems for welding arcs. SATURN INDUSTRIAL GASES Ltd. Oct. 5, 1960 [Oct. 5, 1959], No. 33747/59. Class 38 (4). A D.C. arc between electrodes 1 and 2 is initiated by high potential pulses applied, preferably through a spark-gap 20, to the electrodes from the secondary winding 19 of a step-up transformer 11 having a primary winding 10 which is intermittently connected to a condenser 5 charged from the D.C. power supply 4 feeding the electrodes. A contact 9 is controlled by relay winding 13, driven from an oscillatory circuit 13-15 when contacts 6 and 17 are closed. The intermittent current through primary winding 10, thus caused, may instead be produced from the D.C. power supply 4 by means of a solid state controlled rectifier or an avalanching diode. The circuit may be arranged so that the intermittent primary current for winding 10 ceases when the arc is struck. Thus contact 17 may be broken by means of a current or voltage-sensitive winding in the arc circuit or by arranging that there will be insufficient voltage available from the power supply 4 to maintain the intermittent potential under cooling conditions. The arc initiation circuit may be arranged to produce pulses which are of short duration and of the same polarity as the potential of the connections from the D.C. power supply to the electrodes. The contact 6 may be incorporated in the arc initiation circuit to render it inoperative, and may be mounted on the electrode holder. An A.C. operated solenoid controlled gas valve may be used to provide gas shielding for the arc.
Patent GB-339410-A (GB)
Abstract: 339,410. I, G. Farbenindustrie Akt.- Ges. Oct. 10, 1928, [Convention date]. Sulphuretted dyes.-Acid mordant dyestuffs, probably of the thiazine series, are obtained by treating with sulphur in fuming sulphuric acid a # - oxynaphthoquinonesulphoarylimide (0 : OH : N.R.SO3H=1 : 2 :4) in which the aryl nucleus R may contain further substituents with the exception of alkylamino groups. The quinones used as starting material are prepared by condensing aminoaryl sulphonic acids free from alkylamino groups with 1 : 2-naphthoquinone-4-sulphonic acid. According to examples, (1) 2-hydroxy-4-(4<1>- methyl - 2<1> - sulphophenylimino) - 1 : 4 - naphthoquinone, obtained from 1: 2-naphthoquinone-4- sulphonic acid and 1-amino-4-methylbenzene-2- sulphonic acid, is heated with a solution of sulphur in oleum. The product dyes wool from an acid bath reddish violet shades which turn bright green when after chromed: (2) 2-hydroxy-4-(3<1>- sulpho-phenylimino)-1 : 4-naphthoquinone is similarly sulphurized. 1 : 3-Dimethyl-4-aminobenzene-6-sulphonic acid and 1-methyl-4-aminobenzene-6-sulphonic acid are also mentioned as compounds for the preparation of the #-oxynaphthoquinonearylimides. The dyestuffs may be used for printing wool or cotton by the chrome printing process. Specifications 9856/94 and 151.000 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the treatment with any sulphurizing agent of #-oxynaphthoquinonesulphoarylimide or any derivative thereof. 1 : 2. naphthoquinone, 1 :2-naphthoquinone-4:6-disulphonic acid and aminonaphthalene sulphonic acids are mentioned as components. This subjectmatter does not appear in the Specification as accepted.
Patent GB-605133-A (GB)
Title: Improvements in or relating to plugboard or like contactors
Filed: 1945-12-14
Abstract: 605,133. Plug boards. BRITISH TABULATING MACHINE CO., Ltd. Dec. 14, 1945, No. 33969. Convention date, Dec. 15, 1944. [Class 38 (i)] In an arrangement wherein a removable plug board 10 carrying a plurality of plug sockets 15 is adapted to be plugged into a fixed board 9 having corresponding sockets 11, the sockets 15 are provided with blades 17 which are shaped to grip the plugs. 21 at shoulders 24 and co-operate with blades 13 on the sockets 11, the blades 13 being arranged to exert additional pressure on the blades 17 so as to lock the jack 21 in position when the two boards are assembled. The blades 17 are joined at one side 18 to prevent spreading. The sockets 11, 15 are held in the boards against longitudinal movement by shoulders 12, 16.
Patent GB-901455-A (GB)
Title: C-substituted piperazinones and the manufacture thereof
IPC: C07D241/08
Filed: 1957-10-31
Abstract: The invention comprises compounds of the general formula: <FORM:0901455/IV (b)/1> and the acid addition and quaternary ammonium salts thereof wherein R1, R2, R3 and R4 are alkyl, aralkyl, alkoxycarbonylalkyl, or nitroaralkyl groups or hydrogen and Z is an alkyl, aryl, or alkoxy group and the preparation thereof (wherein R1-R4 are hydrogen, alkyl or aralkyl) by reacting an ethylenediamine of the formula: R3NHCHR1-CHR2NHR4 with an unsaturated alkyl-diester or keto-ester of the formula: ZCOCH=CHCOOAlk or by reacting a piperazinone of the invention wherein R4 is a hydrogen atom with an alkylating or aralkylating (including an alkoxycarbonylalkylating or nitroaralkylating agent.
Patent GB-1527658-A (GB)
Title: Methods of and apparatus for monitoring adhesion bond strength
IPC: G01N29/32
Filed: 1976-08-17
Abstract: 1527658 Acoustic emission testing WESTERN ELECTRIC CO Inc 17 Aug 1976 [18 Aug 1975] 34284/76 Heading G1G [Also in Division B5] A method of monitoring the strength of an adhesion bond between two members 12, 14 comprises the steps of detecting the stress wave energy emitted from said bond during a compression phase of the adhesion bond forming process, and comparing the detected stress wave energy or a signal derived therefrom with a predetermined characteristic which is indicative of the strength of said adhesion bond, therby to afford an indication of the strength of said adhesion bond. As described signals on line 30 derived from the compression phase and, optionally, from the subsequent release period of a thermo-compression bonding process are converted to frequency modulated pulse trains on lead 38. The pulse count may be compared to calibration data to indicate the general quality of the bond or the actual bond strength. The acoustic or stress wave emissions may be sensed by a Piezo-electric differential transducer
Patent GB-1153379-A (GB)
Title: Ventilating Sky-Light With Heat Vent.
Inventor: MORRISON WILLIAM E
IPC: F24F7/02
Filed: 1967-07-26
Abstract: 1,153,379. Belt gearing. JENN AIR CORP. 26 July, 1967, No. 34287/67. Heading F2Q. [Also in Division F4] A belt 42 between a motor 31 and the shaft 35 of a fan 32 is tensioned by a spring urging a plate 40 on which the motor is mounted away from a fixed plate 39, the two plates being hinged together at 41.
Patent GB-781988-A (GB)
Title: Feed-control mechanism for a metal strip shearing machine
Inventor: SCHOFIELD WILLIAM HUGH
IPC: B21D43/28
Filed: 1954-11-26
Abstract: 781,988. Shearing. THOMAS & BALDWINS, Ltd., R. Feb. 3, 1956 [Nov. 26, 1954], No. 34302/54. Class 83 (4). In a shearing machine for cutting lengths of metal strip and having a stop g, Fig. 1, operable by a toggle h, for arresting the end of the strip, a flap d operating a switch e to start the shearing action is placed in front of the stop g at a predetermined distance so that the time taken for the end of the strip to travel from the flap d to the stop g is equal to the time delay of the shearing action. The stop g is automatically lifted out of the path of the strip after each operation by the toggle mechanism h which is actuated from a compressed air cylinder i. A further micro-switch j operated by the stop g prevents further shearing action until the severed portion has been removed and the stop returned to its initial position.
Patent GB-900988-A (GB)
Title: Improvements in or relating to cutting tools
IPC: B23B27/16
Filed: 1960-10-06
Abstract: 900,988. Cutting-tools. SANDVIKENS JERNVERKS A.B. Oct. 6, 1960 [Oct. 8, 1959], No. 34325/60. Class 83 (3). A lathe or like tool comprises a holder 11 having a recess 12 which supports a shim or shims 13, a chip breaker 18, and a throw away tip 16 having cutting edges 30, 31. The tip is clamped by a clamp 21 and the breaker by a clamp 20, both of which may be integral with the holder. The tip and shim are made of sintered carbide &c., and the length of the tip L, Fig. 11, is at least six times its thickness t and at least four times its width B, and the clamped length L-L<SP>1</SP> is less than 50% L. The tip may have cutting edges on all four sides, and clamp 20 may be integral with breaker 18. In a modification, Fig. 9, shim 13, clamp 20, and chip breaker 18 are replaced by members 25, 26 secured to the holder by a screw.
Patent GB-305334-A (GB)
Title: Improvements in or relating to wind driven power plants or generators
IPC: F03D11/00
Filed: 1927-12-19
Abstract: 305,334. Bucklen, H. E. Dec. 19, 1927. Cooling and ventilating; dynamos, driving. -A wind-driven electric generator is provided with a rearwardly extending ejector nozzle on the generator casing to draw air past the generator. An electric generator 7 mounted on the turntable head 3 of a windmill and driven through gearing by a two-bladed impeller 1 is cooled by an internal air current induced by the ejector action of the wind on a rearwardly extending nozzle 52 on the generator casing 50. A venturi device 53 may surround the nozzle 52. The gearing, which mav be chain gearing, is enclosed in a casing 8 filled with lubricant. The electric leads are carried in a hollow spindle 10 extending down from the turn-table and are connected to slip-rings 116 co-operating with fixed brushes 119 mounted on the windmill tower; the hollow spindle 10 also serves as a ventilating duct and includes a conduit 9 through which a chain controlling a tail-vane 6 passes.
Patent GB-1096706-A (GB)
Title: Production of steel ingots
Inventor: LEONARD DENNIS WILLIAM
IPC: B22D27/06
Filed: 1965-08-11
Abstract: A method for the production of steel ingots comprises teeming molten steel into a chill mould through the middle of a preformed ring of refractory material floating on the molten steel in the mould and adding to the surface of the molten steel in the mould in the annular surface area between the ring and the mould walls a mixture of substance at the temperature of the molten steel converted to a fluid flux.  The preformed ring may be made from bonded sand, grog, sillimanite or chamotte or be made from metal. The mixture of substances may comprise fly-ash or soda-ash; or may comprise one or more refractory silicate materials containing alumina and/or calcium oxide and at least one fluxing agent.  The refractory silicate material may be grog, nepheline, syenite, vermiculite or perlite or a slag produced in the manufacture of iron and steel.  The mixture of substances may also comprise sodium carbonate 20% (by weight), iron oxide 10%, pumice 70%; or sodium carbonate 15%, magnesium/calcium silicate slag 85%; or grog 50%, magnesium/ calcium silicate slag 50%. The fluxing agent may be iron oxide, sodium carbonate, flourides, alkali metal oxides and substances which generate alkali metal oxides on heating.
Patent GB-821762-A (GB)
Title: Improvements relating to the transportation and/or utilization of molasses
IPC: A23K10/33
Filed: 1956-11-12
Abstract: As stock feed are employed non-sticky products of consistencies ranging from powdery to semi-plastic comprising molasses incorporated in precooked cereal grain such as maize.  The precooked cereal is preferably meal or flour so absorbent that products of 78% molasses content can be made.  The product may be heated to candify to some extent the molasses coating the cereal particles.  The product may be compacted to friable cakes, briquettes or the like.  The products are readily packaged for transport.  Ingredients such as sulphur, lime, salt, vitamins and enzymes may be incorporated in the products. Specification 821,761 is referred to.ALSO:Molasses is incorporated in precooked cereal grain such as maize to form non-sticky products of consistencies ranging from powdery to semiplastic.  The precooked cereal is preferably meal or flour so absorbent that products of 78% molasses content can be made.  The product may be heated to candify to some extent the molasses coating the cereal particles.  The product may be compacted to friable cakes, briquettes or the like. The products are readily packaged for transport.  They may be mixed with dried milk, liquid milk or water or may be used in bread, biscuit or cake-making when intended for human consumption. Specification 821,761 is referred to.
Patent GB-817002-A (GB)
Title: Improvements in or relating to cutting tools for lathes or other machine tools
Inventor: CROWE ERIC FRANCIS SUMMERSUL
IPC: B23B27/16
Filed: 1954-11-29
Abstract: 817,002. Cutting-tools and holders. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 29, 1955 [Nov. 29, 19541, No. 34495/54. Class 83 (3). A tool-body adapted to hold a cutting-bit of hard material comprises a shank 1, Fig. 5, and a slot or like recess 3 provided therein of elongated form and open at one side 1c, Fig. 1, of the body. The slot extends in an inclined rearward and downward direction, from the nose portion 2, and the bottom of the slot is inclined transversely in a downward direction from one of the side walls 2b to the other side wall 1c, a front supporting edge 3c, Fig. 2, parallel to the leading edge of the body thus being provided to support a tool-bit 8. A clamping member 10 is so shaped as to engage the side walls of the slot and bear upon the tool-bit to secure it in longitudinally-adjusted position within the slot. The bottom of the slot has a step 4, Fig. 5, at its lower end, through which penetrates an adjusting screw 6. A slotted shoe 9, Fig. 2, of slightly less thickness than the depth of the step, has a rounded end bearing against the inside of screw 6, and is interposed between the step and the flat end of the tool-bit 8. Movement of the screw 6 thus adjusts the projection of the tool-bit when the latter is unclamped. The member 10 is secured over the tool-bit by a clamping screw 11, Fig. 1, which passes through the slot in the shoe 9 and is threaded into a tapped hole 7, Figs. 2 and 5, in the face 2b of the holder.
Patent GB-991783-A (GB)
Title: Improvements in and relating to nuts and bolts
Inventor: BUNYAN THOMAS WALTER
IPC: F16B31/04
Filed: 1960-10-07
Abstract: 991,783. Bolt-tensioning; locking nuts. P. & O. PILGRIM VALVE Ltd. Sept. 13, 1961 [Oct. 7, 1960], No. 34521/60. Heading F2H. [Also in Division G1] In order to tension a bolt 1 or stud, fluid under pressure, such as grease from a gun, is introduced into a passage 8 in a rubber body 7 to force an annular piston 6 (26) out of a cavity 5 (25) formed in a nut 4, Fig. 1, or in a ring 24, Fig. 6, set beneath a nut, or in a bolthead 3, Fig. 5. The nut 4 or bolt-head 3 is first tightened by hand or tommy bar against a split ring 14 which is of such a thickness that the unstressed rubber body 7 fills its space in the cavity 5 and then, when the tension has been applied to the bolt 1, the split ring is removed and replaced by a thicker one which is gripped when the pressure of the fluid in the body 7 is released. Incidentally, locking of the nut 4 is achieved by the urging of the part of the nut thread adjacent the body 7 into the bolt thread by the fluid pressure. The rubber body 7 may be flattened, Fig. 2 (not shown), to fill its space in the cavity 5 before tensioning, and may be formed by cementing a flat ring at two spaced annular zones on a second ring, Fig. 3 (not shown), in which case the two rings may each have a groove, the grooves combining to form the passage 8. The body 7 may be of a circular cross-section, Fig. 5, and located in a cavity in a ring, Fig. 4 (not shown), set beneath the nut 4 as is the ring 24 shown in Fig. 6. The rubber body 7 in Fig. 6 may be bonded to the piston 26. It envelops a thin soft metal tube 27 soldered in the recess 25. Pressure fluid is introduced into the tube until it bursts the tube and deforms the rubber body 7 to tension the bolt 1. The elongation of the bolt may be gauged by a rod 31 which is secured at one end in an axial bore in the bolt so that it is not subject to the applied tension. When the required elongation is achieved, the thickness required for the second split ring to maintain the desired tension is calculated by measuring the gap beneath the nut or bolt head and rings of such thickness may then be used with similar accompanying bolts without further gauge rods 31 being required to indicate that tension. As shown in Fig. 7, a device for indicating when the bolt 1 has been sufficiently elongated may include a lamp 36 which is on when the device is tilted as indicated but goes out when the bolt end rises and moves a micrometer spindle 35 out of contact with the gauge rod 31. The spindle 35 is first set to protrude the required elongation distance from the end of a central hole in an annular magnet 33 (which is mounted on insulation 34 on the end of the micrometer) for holding the device on the bolt end. Specification 980,090 is referred to.
Patent GB-1013086-A (GB)
Title: Sport shoes, especially for runners
IPC: A43B5/06
Filed: 1964-08-24
Abstract: 1,013,086. Sports shoes. A. DASSLER. Aug. 24, 1964 [May 26, 1964], No. 34577/64. Heading A3B. A sports shoe to be used especially as a running or track shoe has an upper consisting of leather, preferably kangaroo leather, of a thickness of less than 1mm., wherein the flesh side of the leather of the upper faces outwardly and is provided with a waterproofing impregnation or coating such as a silicon based waterproofing. Parts of the upper which are exposed to wear and which may be stretched e.g. the ball and heel parts may have a protective coating sprayed on to the leather, and tension straps of plastics material may be welded or sewn on to the upper.
Patent GB-211290-A (GB)
Title: Improvements in or relating to gramophones and the like
IPC: G11B3/46
Filed: 1922-12-19
Abstract: 211,290. Cotton, A. F. R. Dec. 19, 1922. Tool arms.-A stylus bar is connected to the diaphragm without metallic contact by a connection, adapted to transmit substantially only the vibrations normal to the diaphragm comprising a plate f on the end of the bar c embedded in wax g, or similar substance, capable of hardening, in a cup o fixed to the diaphragm a. The Provisional Specification describes a modification in which the stylus bar is connected to the diaphragm by a screw passing through a clearance hole in the diaphragm, metallic contact being broken by two washers of wax, rubber or the like.