baber/WOPTO huggingface dataset:
Patent GB-661945-A (GB)
Title: Improvements in or relating to the removal and/or recovery of vanadium compounds from chromate liquors
IPC: C01G31/00
Filed: 1949-11-02
Abstract: Vanadium is removed from solutions containing alkali metal chromates and vanadates by adding a lead compound, e.g. the oxide, hydroxide, sulphate, basic sulphate, acetate or nitrate to precipitate substantially all the vanadate ion and a little of the chromate ion as their lead salts, and removing the precipitate from the solution. The process finds application in the extraction of chrome ores comprising the steps of roasting the ore with sodium carbonate and lime or dolomitic lime, leaching, returning the residue with fresh sodium carbonate to the roasting operation, reducing the pH of the "raw liquor" from 11-12.5 to 8.5-9 by sulphuric acid to precipitate alumina, further reducing the pH of the so-produced "neutral liquor" to pH 4.4, concentrating to 60 DEG Be, crystallizing sodium sulphate, concentrating to 70 DEG Be, crystallizing sodium bichromate, and returning the liquor to points in the main stream.  The lead compound is added as a slurry or solution to the "neutral liquor," e.g. at 80-90 DEG C. and the precipitate treated with sulphuric acid, the lead sulphate formed being re-employed in the process.  The filtrate, containing vanadic, chromic and sulphuric acids, is then oxidised, e.g. with sodium hypochlorite, and alkali metal or ammonium hydroxide is then added to produce a pH of 1-3. The insoluble alkali metal or ammonium vanadate is separated, and the chromic-sulphuric acid filtrate is returned to neutralize the raw liquor.  Specification 661,946 is referred to.  A statement of the art refers to (1) the adjustment of the pH of the liquor, from the crystallization of bichromate to 1.7 to precipitate vanadium, which is recovered as the oxide or hydroxide, (ii) converting the vanadium in chromate salt solutions to ammonium metavanadate, and precipitating barium metavanadate from ammoniacal solution, (iii) the precipitation of a calcium salt of vanadic acid from slightly acid solutions.
Patent GB-500236-A (GB)
Title: Lead alloy, especially for metals for bearings
IPC: H01M4/68
Filed: 1937-10-15
Abstract: 500,236. Alloys. SCHWARZ, M. F. VON. Oct. 15, 1937, No. 28106. [Class 82 (i)] Lead alloys for bearings contain 3-8 per cent of antimony and 1-6 per cent of arsenic, with or without 1-4 per cent of cadmium, and up to a total of not more than half the combined antimony and arsenic content of one or more of the metals cobalt, iron, silver, manganese, and nickel, not exceeding 2 per cent in each case.
Patent GB-1034875-A (GB)
Title: Anthelmintic compositions containing diphenyl urea and thiourea derivatives
IPC: A23K1/18
Filed: 1964-07-10
Abstract: Anthelmintic compositions and feedstuffs comprise substituted diphenyl ureas and thioureas of the general formula <FORM:1034875/A5-A6/1> wherein R1, R2 and R3 independently of each other represent hydrogen, alkyl or alkenyl which may be bound by oxygen or sulphur, halogenoalkyl, halogen nitro, cyano, thiocyano, amino, alkylamino, acylamino, carboxyl, carbamyl, carbalkoxy, sulphamyl, N-alkylsulphamyl, N, N-dialkylsulphamyl, or alkylsulphonyl, or a water-soluble salt form of a salt-forming group mentioned, but at most only one of R1, R2, and R3 is CF3, R4 is hydrogen, alkyl or alkenyl which may be bound by oxygen or sulphur, halogen, nitro, cyano, thiocyano, amino, alkylamino, acylamino, carboxyl, carbamyl, carbalkoxy, sulphamyl, N-alkylsulphamyl, and N, N-dialkylsulphamyl or alkylsulphonyl, or a water-soluble salt form of a salt-forming group mentioned, and X is oxygen or sulphur.  The compositions may be in the form of solutions, emulsions, suspensions, drenches, powders, tablets, capsules or boluses, together with conventional excipients.  The feedstuffs may consist of grain, protein concentrates, fish meal, cotton-seed, soya bean, or linseed meals, and contain conventional feed additives e,g. minerals, vitamins, antibiotics, thermotherapeutics, bacteriostatics, fungi-statics, cocci diostatics, hormone preparations, anabolic agents, growth promoting agents.  Liquid feedstuffs e.g. water, milk, whey, skimmed and butter milk may also be used.
Patent GB-420937-A (GB)
Title: Improvements in or relating to the nitrogenisation of steel or alloy steel articles
IPC: C23C8/50
Filed: 1933-10-16
Abstract: <PICT:0420937/III/1> <PICT:0420937/III/2> Steel or alloy steels are nitrogenized by immersing them in a fused salt bath, preferably nitrogen-containing salts, and passing active nitrogen into the bath. The active nitrogen is produced by subjecting ammonia or other nitrogen containing gas to dissociation and/or ionization.  Ammonia contained in cylinders G is passed through a pipe 10 into a dissociator A and then by a pipe 16 through an ionizer I, the gas containing active nitrogen then passing by a pipe 18 into a conduit 20 whence it is passed by pipes 22, 24 into melt baths 6, 8, in which the articles are immersed.  The ionizer I, Fig. 3, comprises a shell 36 and electrode 38 secured together by an insulating base 40 and cap 42. The cylinder connected to the pipe 16 is provided with a star-shaped member 37 and openings 39.  The parts 36,38 are included in a circuit of relatively high potential, the circuit being provided with means to prevent sparking round the part 37. The dissociator comprises a series of concentric cylinders with inert contact material between them and is provided with a central heating member. U.S.A. Specification 1,837,256 is referred to.
Patent GB-321521-A (GB)
Title: Improvements in or relating to cellulose compounds for use in the manufacture of transparent paper and artificial silk
IPC: C08B1/00
Filed: 1928-10-05
Abstract: 321,521. Ruzicka, C. Oct. 5, 1928. Ethyl oleate is prepared by treating a mixture of ethyl alcohol and oleic acid with dry hydrogen chloride in the cold.
Patent GB-965162-A (GB)
Title: Recovery of sodium carbonate from waste liquors
IPC: C01D7/00
Filed: 1962-07-25
Abstract: In an operation in which spent soda-base liquor from the digestion of wood is evaporated and burned under reducing conditions to form a smelt of sodium carbonate and sodium sulphide, the smelt is cooled and solidified by pouring it on to a cooled metal surface and is ground with a solution of sodium carbonate and sodium sulphide, the ground smelt then being contacted with a concentrated sodium carbonate solution to dissolve sodium sulphide.  The ground smelt is preferably such a size as will pass through a screen of 10 mesh per lineal inch. The particles are passed countercurrent to the sodium carbonate solution and the resulting solution of sodium carbonate and sodium sulphide is passed to a carbonation stage to produce hydrogen sulphide and sodium carbonate. A slurry of sodium carbonate crystals is obtained from the extraction column.  The slurry is separated and part of the sodium carbonate solution is recycled to the extraction stage, some is used to slurry the crystals and some is incorporated in the spent soda-base liquor.  The solution of sodium carbonate obtained from the carbonation stage may be divided into three parts, one to slurry the solid smelt to the grinder, one part is sent to the extraction column and one is used to sluice the sodium carbonate crystals from a separator at the base of the extraction column. <PICT:0965162/C1/1>
Patent GB-1432884-A (GB)
Title: Acoustical sound producer for timepieces
IPC: G04C21/02
Filed: 1974-06-27
Abstract: 1432884 Alarm watches TIMEX CORP 27 June 1974 [5 July 1973] 28671/74 Heading G3T An alarm sounding device, e.g. for a watch, comprises a pin 14 of magnetic material attached to the timepiece crystal 10 and extending into the field of an electromagnet 20 so that the pin is directly excited when the electromagnet coil 20a is energized by an oscillator at the alarm time. As shown the coil is wound about a core 20b and attached to a mounting bracket 18 between permanent magnets 22. Pole pieces 24 are fixed to the magnets 22 and lie one on each side of the pin 14, which is ferromagnetic. The bracket is adjustable on watch plate 16 and the crystal 10 is excited at its resonant frequency.
Patent GB-1187990-A (GB)
Title: A Pellet Making Machine.
Inventor: PAETZOLD ERNST
IPC: A01F15/00
Filed: 1967-06-22
Abstract: 1,187,990. Extrusion pelletizers. E. PAETZOLD. 22 June, 1967 [23 June, 1966], No. 28906/67. Heading B5A. An extrusion pelletizer, particularly intended for the production of animal foodstuff pellets, comprises an upright casing 4 having a multiorificed die plate 8 and a pressing and extrusion member 14 which is mounted and driven such that its bottom surface co-operates with plate 8 to extrude material through orifices 10 as it performs a swash-plate motion. As shown, member 14 is conical and is eccentrically connected to a rotating disc 18 by means of a ball and socket joint 20. The base of member 14 is guided by a ball and socket bearing 16. Spikes 26 facilitate the downward feed of material from inlet 6. In a modification, Fig. 3 (not shown), spikes 26 are replaced by a mixing device (32, 34), connected to disc 18. The drive to disc 18 may be by belt, Fig. 1, or gearing, Figs. 4 and 5 (not shown). The orifices 10 in base 8 are preferably flared at their upstream ends, Figs. 6-9 (not shown). A modified ball and socket joint 20 is described wherein bearings (50, 52), Fig. 10 (not shown), are located on a spigot (56) of member 14.
Patent GB-759117-A (GB)
Title: Improvements in or relating to transport devices for conveying elongated objects having a longitudinal ferromagnetic core
IPC: B65G17/20
Filed: 1954-10-07
Abstract: 759,117. Endless conveyers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 7, 1954 [Oct. 10, 1953], No. 28922/54. Class 78 (1). In an endless conveyer in which elongated objects having a longitudinal ferromagnetic core are conveyed in a vertical position, each object is suspended at one end from a magnet on the conveyer in such a manner that at the other end of the object no magnetic potential difference exists between this object and an adjacent one suspended from the conveyer or any part of the conveyer. The Figures show an application in which welding rods are dried by being conveyed by an endless chain 5 through a furnace comprising iron walls 1, 2 heated by steam passing through spacers 3, 4. The chain is guided by rollers 22 engaging rails 13 and consists of links 14 secured in pairs by metal plates 15 to which are attached magnetic suspension devices. These latter each comprise a permanent magnet 16 with pole shoes 17, 18 from which a welding rod 20 is suspended by its uncoated upper end which bridges the shoes. The magnets may be electromagnets.
Patent GB-1385435-A (GB)
Title: Boats for collecting impurities from the surface of water
IPC: B63B35/32
Filed: 1972-06-21
Abstract: 1385435 Scavenging vessels N J MALMBERG 21 June 1972 29082/72 Heading B7A Surface pollution is forced downwardly by the hull of the vessel and, as a result of the speed of the vessel, and is forced through a forwardly facing opening into the hull of the vessel. As illustrated, the hull is flat-bottomed and has keels as 8 along the side of the bottom to confine the pollution in its passage to the opening 10 which is in the form of a transverse slot. The unit in which the opening is formed may, as illustrated, be detachable from the vessel. Alternatively, the unit may be built into the vessel. The opening may be intermediate the length of the vessel in which case a baffle is provided behind the opening to, encourage buildup of pollution in the region of the opening. The bottom of the vessel may have an inverted V- section to assist in guiding pollution towards the opening. A sieve may be provided within the vessel to remove solid debris, and a pair of conveyer belts may assist in the raising of debris to the sieve.
Patent GB-1272918-A (GB)
Title: Textile products and process for the production thereof
IPC: D06P3/82
Filed: 1970-06-16
Abstract: 1,272,918. Acrylic fibres. JAPAN EXLAN CO. Ltd. 16 June, 1970 [16 June, 1969], No. 29240/70. Heading B5B. [Also in Division D1]  Fibrous textile products, e.g. yarn, comprise acrylic fibres B containing basic groups and amphoteric acrylic fibres A containing both basic and acidic groups, the fibres satisfying the inequality in which X and Y are the respective m.eq./kg. of basic and acidic groups in fibres A and Z is the m.eq./kg. of basic groups in fibres B. The products show tone-on-tone dyeing when dyed from a single bath containing an anionic dyestuff. Other fibres, non-substantive to such dyes may be present, e.g. acidic acrylics, polyesters, cellulosics or specially treated polyamides and the dyebath may contain dyes substantive to these fibres. The fibres A and B may be as described in Specification 1,272,918. In an example a copolymer of acrylonitrile with methyl acrylate and N,N-dimethylaminoethyl acrylate or a blend of this copolymer with a copolymer of acrylonitrile, methyl acrylate and sodium methallylsulphonate are wet spun from cone. aq. NaCNS into dilute aq. NaCNS, the fibres stretched 10 x in boiling water, dried at 105‹ C. and 60% R.H. and heat-treated at 105-120‹ C.
Patent GB-333092-A (GB)
Title: Improvements in and relating to sound boxes for soundreproducing & sound-recording machines
IPC: G11B3/46
Filed: 1929-09-27
Abstract: 333,092. Lindstr÷m Akt.-Ges., C. Oct. 25, 1928, [Convention datel. Tool-arm and mountings. - The stylus-bar spindle of a soundbox is spring-loaded so that it is held in its bearings without play in the direction of its radius. The stylus-bar c is pivoted about the spindle e, which is journaled in bearings i, k, provided on the sound-box body. A compression spring l between the stylus-bar c and the sound-box body a presses the stylus-bar against the spindle e. In addition, the spindle e is pressed at p against the inside walls of the bearings i, k. A screw m may be utilised to adjust the compression of the spring l.
Patent GB-837137-A (GB)
Title: Improvements in or relating to dial switches for use in telephone systems
Inventor: LENEY ERIC NORMAN
IPC: H04M17/02
Filed: 1957-09-18
Abstract: 837,137. Impulse transmitters. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Aug. 6, 1958 [Sept. 18, 1957], No. 29332/57. Class 40 (4). Attempts to make fraudulent calls from a coin box by taking advantage of free calls available with digits such as "0 " or " 9 " are frustrated by the provision of a cam-controlled, articulated lever which unmasks the impulsing contacts for a predetermined digit and, unless restored by full return motion of the mechanism, is deflected to disable the impulsing contacts during further dialling. As shown, the articulated lever 16 is pivoted at 17 and carries studs 56 and 60 co-operating with portion 50 of a nylon cam 28. When the finger plate sets up a " free " digit, cam 28 reaches stud 60 and deflects the lever 16 to drive a bevelled nylon stud 18 underneath a contact spring 52 to break its contact with 53 and unmask impulse springs 43, 44. When lever 16 is in this position an arm 23 articulated to the lever at 19 and biased by a spring 24 against a post 21 is drawn to the right and inclines inwardly so that an associated detent 20 is placed in the path of teeth 58 on the cam 28. Return motion of the dial mechanism, which may be the kind disclosed in Specification 784,351, idly deflects the detent 20 but does not interfere with the position of lever 16 until in the last moments cam edge 50 engages stud 56 and returns the lever to normal. Should the mechanism be halted before the finger plate is fully returned, in an attempt to hold the masking contacts open, further setting movement of the finger plate turns one of the teeth 58 of cam 28 into the detent 20 and forces the lever 16 further to the right. As the lever 16 slides arm 23 against post 21 the cranked end of the arm slides on to the post and rotates the detent out of the path of the teeth 58 leaving the lever 16 in its overthrown position in which it deflects the upper end of a bell-crank lever 30 pivoted at 31, Fig. 2, and causes its lower end to force the impulsing contacts 43, 44 open and hold them to release the connection. The mechanism now performs idly until such time as the finger plate is allowed to restore fully and cam 28 resets the lever 16 to normal.
Patent GB-1195863-A (GB)
Title: Method of Introducing Conductivity Type Determining Impurities into a Semiconductor Substrate
Inventor: STRIETER FREDERICK JOHN
IPC: H01L21/00
Filed: 1967-06-27
Abstract: 1,195,863. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 27 June, 1967 [30 June, 1966], No. 29522/67. Heading H1K. Impurities are deposited on selected areas of a semi-conductor substrate by bombarding such areas with impurity ions, and the impurities are subsequently diffused in by heating. The selected areas may be the only exposed areas of a surface otherwise covered by a mask, e.g. of gold, which may either be separate from or deposited on the surface. It is however possible to dispense with masking and rely on focusing the ion beam on to the required area, and this may be done by traversing a narrow beam over the semi-conductor surface. In an example of the mask-using method (Figs. 1 to 3, not shown), a silicon wafer is doped first with boron and then with phosphorus to provide a device (Fig. 4, not shown) comprising a transistor and a resistor in a single semi-conductor body. The maskless method (Fig. 5, not shown) is stated to be particularly suitable for mass-production of diffused semiconductor devices.
Patent GB-918388-A (GB)
Title: Protective cigarette package
Inventor: JACKE RAYMOND EDWARD
IPC: B65D85/10
Filed: 1959-08-28
Abstract: 918,388. Packages. REYNOLDS METALS CO. Aug. 28, 1959, No. 29531/59. Class 94(1) A cigarette &c. package comprises an inner open topped cardboard or like container having overlapped unjoined wall portions 14, 15 on one side, the container being closed by a stiff element 21 and the whole being wrapped, pressure on the package adjacent the top causing the portions 14, 15 to slide over each other, reducing the container mouth area and permitting the element 21 to rupture the wrapper. The element 21 comprises three panels one of which 23 is folded beneath panel 22 and held in place by a tongue 26 prior to placing the element on the container. The folded over portion gives a stiff cutting edge. When the wrapper is ruptured, the panels 22, 23 are bent back, tearing the wrapper to the region of a revenue stamp 40, an edge of which coincides with the hinge of the panel 22. The panel 23 is released for insertion in a slit 20 on reclosure of the package. A tub 27 facilitates further opening.  The wrapper may be of aluminium foil laminated to tissue paper by micro-crystalline wax.
Patent GB-1100337-A (GB)
Title: Coating compositions
Inventor: NICKS PETER FRANCIS
IPC: C08G18/54
Filed: 1964-07-22
Abstract: A composition, suitable for coating, and which is free from isocyanate or isocyanate-generating groups comprises the reaction product of a polyisocyanate and at least one condensate containing at least two hydroxyl groups prepared by reacting urea or melamine with formaldehyde or a formaldehyde liberating substance.  The preparation of the condensate may take place under alkaline conditions and the product so obtained partially etherified by reaction with a monohydric aliphatic alcohol under acid conditions. In addition to the condensate a further polyhydroxy and/or monohydroxy compound may also be reacted with the polyisocyanate. The further polyhydroxy compound is suitably a linear polypropylene glycol. A catalyst such as zinc naphthenate, stannous octoate and stannous oleate may be added to the reaction mixture and the reaction may be carried out in the presence of a solvent such as ethyl acetate, butyl acetate or 2-ethoxy ethyl acetate, preferably in admixture with an atomatic hydrocarbon such as xylenes or toluene.ALSO:A coating composition free from isocyanate or isocyanate generating groups comprises the reaction product of a polyisocyanate and at least one condensate containing at least two hydroxyl groups prepared by reacting urea or melamine with formaldehyde or a formaldehyde liberating substance. The condensate may be partially etherified by reaction with a monohydric aliphatic alcohol and the reaction mixture may contain a further polyhydroxy and/or monohydroxy compound, e.g. a linear polypropylene glycol.  Examples describe the coating of various compositions on a steel surface.
Patent GB-807790-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B17/00
Filed: 1955-10-18
Abstract: 807,790. Vehicle wheels. KLOCKNERGEORGSMARIENWERKE A.G. Oct. 18, 1955 [Nov. 2, 1954], No. 29761/55. Addition to 746,197. Class 144 (1). In a light-weight railway wheel as described in the parent Specification, the tyre band 11, instead of being welded to the rim portions 7, 8 of the wheel discs 5, 6, is locked in position on the rim portions by a ring 25, on one (8) of the rim portions, which is shaped to interengage with surfaces on the tyre band and to lock therewith on shrinking of the tyre band. As shown, the ring 25 is shaped on its inner periphery to abut the curved shoulder 121 of the disc 6, and has a radially outwardly projecting collar 27 on its outer periphery. With the tyre band assembled over the rim portions 7, 8, in a heatexpanded condition, the ring 25 is pressed into an undercut recess provided in inner peripheral edge of the tyre to cause the collar 27 to snap behind the radially inwardly projecting lip 26 of the recess. Subsequent contraction of the tyre locks the assembly tightly together. To facilitate assembly of the ring 25 in the tyre recess, the collar 27 has a conical lead portion 28 which, on assembly, abuts a complementary surface in the tyre recess.
Patent GB-617545-A (GB)
Title: Improvements in or relating to rotary photogravure printing presses
IPC: B41F9/00
Filed: 1946-10-05
Abstract: 617,545. Printing machines. SIMMONS, L. J. Oct. 5, 1946, No. 29768. [Class 100(ii)] A rotary intaglio printing machine which is capable of printing separate impressions on webs H, N which are led around impression rollers R<1>, R<2> coacting with the same printing-roller A is constructed so as to be capable of printing in either direction of rotation of the cylinder A. Two doctor carriages O, P are used, each fitted with a pair of doctors Q, C; L, J, and the cylinder is inked by sprays from nozzles B, I. Means for reciprocating the doctors is employed, and the scraped ink returns by channels O, K to a sump E connected to the main ink supply reservoir.
Patent GB-502579-A (GB)
Title: Improvements relating to gas heated radiating bodies
IPC: F24C15/24
Filed: 1937-11-01
Abstract: 502,579. Radiants for gas - fires., RADIATION, Ltd., YATES, H. J., and STRINGER, W. L. Nov. 1, 1937, No. 29794. [Class 126] An elongated radiant comprises a plurality of separate or integral ceramic elements having inner portions b surrounded by fins a with thin outer edges. When separate, the elements have bosses on their inner portions b, which are apertured so that the elements can be threaded on a rod c, which is supported over a burner d, Fig. 1, by brackets e at its ends and at its centre by an arm g on a bracket h. The elements have radial slots i to allow for expansion and contraction. The elements be circular as shown, star-shaped, or of other shape, and may be mounted on two or more rods, each having more than one aperture for this purpose. Specification 22035 /09, [Class 75 (ii)], is referred to.