baber/WOPTO huggingface dataset:
Patent GB-1007020-A (GB)
Title: Photographic processes, emulsions and developer solutions
IPC: C07D277/84
Filed: 1963-03-06
Abstract: Sodium 2 - mercapto - naphtho - 11,21,4,5oxazole - 5 - sulphonate is prepared by refluxing 1 - amino - 2 - hydroxynaphthalene - 4 - sulphonic acid dissolved in aqueous caustic soda with carbon disulphide in methanol.  Similarly, the sulphonates of other 2-mercapto-naphthoxazoles are prepared by using the following sulpho-naphthols in the above preparation: 2 - amino - 3 - hydroxynaphthalene - 6 - sulphonic acid, 1 - hydroxy - 2 - aminonaphthalene - 4 - sulphonic acid, 1 - amino - 2 - hydroxynaphthalene - 6 - sulphonic acid or 2 - hydroxy - 3 - amino - naphthalene - 5 : 7-disulphonic acid.  Similarly, substituted 2-mercaptobenzoxazoles are prepared by reacting the following aminophenols with carbon disulphide in the above manner; 2-amino-4-chlorophenol-6-sulphonic acid, 2-aminophenol-4-sulphonic acid, 2-amino-6-chlorophenol-4-sulphonic acid (the resulting sulpho-benzoxazole is converted into its barium salt), 3-amino-4-hydroxybenzoic acid, 2-hydroxy-3-amino-benzoic acid, 1 - hydroxy - 2 - amino - benzene - 4 - or 5-sulphonamide, and 1-hydroxy-2-amino-4-methyl-benzene-6-sulphonic acid.  Sodium 2 - mercapto - naphtho - 11,81; 4,6-oxazine-8-sulphonate is prepared by the above method from 1-amino-8-hydroxynaphthalene-6-sulphonic acid and carbon disulphide.  By using 1 - hydroxy - 8 - amino - 3,6 - disulphonic acid the corresponding naphthoxazine-5 : 8-disulphonate is obtained.  Sodium 2 - mercaptobenzthiazole - 5 - sulphonate is obtained by first adding the sodium salt of 2 - nitrochlorobenzene - 4 - sulphonic acid to an aqueous solution of sodium sulphite, and then adding carbon disulphide and refluxing. Instead of the nitrochlorobenzene compound referred to above the following compounds may be used to give substituted 2-mercaptobenzthiazoles: 1 - chloro - 2 - nitrobenzene - 4 - methylsulphonamide, 1 - chloro-2 - nitro - benzene - 4 - (p - chlorophenylsulphonamide or 4 - chloro - 3 - nitrobenzoic acid.  By a similar reaction using potassium selenide instead of sodium sulphide, 2-mercapto-5-sulpho-benzselenazole is obtained.  This reaction also is performed using 4-chloro-3-nitrobenzoic acid.  Sulphonic acid derivatives of 2 - mercapto - 6 : 7 - benzo - benzthiazole and 2-mercapto-benzthiazine are prepared by sulphonating them with oleum at 20 DEG  C.
Patent GB-573362-A (GB)
Title: Improvements in or relating to hydraulic systems
IPC: F15B21/044
Filed: 1944-05-11
Abstract: 573,362. Hydraulic systems. KEELAVITE CO., Ltd., and LEVETUS, F. B. May 11, 1944, No. 8974. [Class 69 (ii)] [Also in Group XXVIII] In a hydraulic system in which a pump A supplies a motor C, the exhaust from which is conveyed, e.g. through a main reservoir F back to the pump, an auxiliary reservoir L is provided on an injector H operated by the liquid in the circuit draws additional liquid as required to prevent cavitation or inlet of air from the auxiliary reservoir. A valve E controls the rate of flow through the motor, the pressure in the discharge pipe D under the setting of this valve acting on a responsive valve J to byepass liquid. The auxiliary reservoir may be under atmospheric pressure and may be supplied from the main reservoir through a non-return valve M. A check valve H<2> maintains pressure in the circuit when the pump is stopped. The valve M may, as shown, act as a relief valve. An accumulator may be provided of sufficient capacity to allow for change of liquid volume, e.g. by the motion of a piston independent of the injector and the relief valve.
Patent GB-434673-A (GB)
Title: A new or improved method of removing carbon disulphide from gases
IPC: C10K1/34
Filed: 1934-03-22
Abstract: Carbon disulphide is removed from gases containing hydrogen and hydrogen sulphide but free from oxygen by passing at a temperature of 500--600 DEG  C. over copper or copper oxide when copper sulphide is formed, the gas being kept in contact therewith to convert the carbon disulphide to methane and hydrogen sulphide the latter being removed in a subsequent stage.  Alternatively, copper sulphide may be present initially in which case the presence of hydrogen sulphide is not essential.  The process is continuous, revivification of the contact substance being unnecessary.  The initial gases generally contain sufficient hydrogen sulphide but this may be added.  For example, hot gas from a water gas plant is passed after freeing, if necessary, from dust, at 500--600 DEG  C. over finely divided copper.  The process is used for purifying hydrogen employed in hydrogenation reactions or the synthesis of liquid fuels or lubricating oils.
Patent GB-341779-A (GB)
Title: Improved pneumatic and hydraulic shock absorbing apparatus
IPC: F16F9/06
Filed: 1930-03-21
Abstract: 341,779. Pneumatic and hydraulic shock-absorbers. MESSIER, G. L. R. J., 29, Avenue LÚon Gambetta, Montrouge, Seine, France. March 21, 1930, No. 9059. Convention date, April 8, 1929. '[Class 108 (iii).] Pneumatic springs which may be combined with a liquid damping device comprise a piston with liquid on both sides working in a cylinder, one layer of liquid being connected with a closed compressed air chamber while the other layer communicates with the atmosphere. In the construction shown in Fig. 1, the two elements whose relative movements are to be restrained are connected respectively to the piston 2 and the cylinder 1. The liquid on the upper side of the piston 2 communicates through a depending tube with the compressed air chamber 5, while the liquid on the under side of the piston communicates with the atmosphere through a reservoir 6 having a number of baffle plates 9. The movement of the piston in either direction may be further restrained by one-way valves 7, 8. A ball valve may be employed, as shown in Fig. 1a, to prevent escape of liquid to the atmosphere. Several modifications are shown in which the shapes and relative positions of the compressed air chamber and reservoir are varied. When applied to an aeroplane a reservoir of stream-line shape may enclose the other parts. Specification 321,035, [Class 108 (iii), Springs &c.], is referred to.
Patent GB-1292494-A (GB)
Title: Halide treatment of molten ferrous metals
Inventor: KARINTHI P
IPC: C22B9/05
Filed: 1970-02-25
Abstract: 1292494 Adding titanium to steel or iron L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 25 Feb 1970 [4 March 1969] 9192/70 Addition to 1131570 Heading C7D A chloride of titanium, particularly the tetrachloride, is introduced through a porous plug into molten ferrous material containing a substantial amount of aluminium to reduce the chloride; the aluminium may be added prior to or during the treatment, which also serves to remove manganese. Any residual chlorine may be eliminated by addition of a calcium alloy. As illustrated, chloride from vessel 24 is pressurized by argon and discharged through porous plug 6 into metal contained in induction furnace 2.
Patent GB-954471-A (GB)
Title: Machine for continuously corrugating thermoplastic sheets
IPC: B29C53/28
Filed: 1963-03-08
Abstract: 954,471. Corrugating thermoplastic sheets. LAVORAZIONE MATERIE PLASTICHE L.M.P. S.p.A. March 8, 1963 [March 10, 1962], No. 9265/63. Heading B5A. In a machine for corrugating thermoplastic sheets having undercuts the shaping dies for the undercuts in addition to being adapted to be drawn together in a direction perpendicular to the sheet are also displaceable relative to a mutually interlocked position, the contact between the dies and the sheet being less than the amount of transverse draw on the sheet during corrugating, means being provided for maintaining the sheet transversely stretched during corrugating. The machine comprises upper and lower guides 40, 41 of which the upper one 40 is movable vertically by pneumatic means. Each girder carries five sets of identical dies. In each set lower girder 41 has rigidly connected to it a hollow member 51 having an L-shaped hull 52, the outer surface 52<SP>11</SP> of which is designed not to contact a sheet 20, and a member 56 having a hull 57 the free horizontal flange of which completely fills a loop 16 formed thereby. These two dies have cooperating therewith three dies carried by the upper girder 40 through a common supporting block 58, viz. a tubular member 59 swingably mounted on block 58 and carrying an L-shaped hull to co-operate with hull 52; a stationary member 62 having a hull 63 which fits into the clearance between hulls 60 and 57 so as to loop the sheet about hull 57 and also deflect it downwardly from the bottom surface of hull 60; a tubular member 64 swingably mounted on block 58 and having a hull 65 similar in profile to hull 60. Members 59 and 64 are swingable on arms 61, 66 moved by fluid pressure devices 75, 76 having means for adjusting the stroke. The hull 60 interlocks loosely with hull 52 to form a channelled shaped portion 15, and the hull 65 with hull 57 to form a loop 16. Two further dies of a triangular cross-section 67a, 68a both rigidly attached to their respective supporting girders co-operate to form a step 14 in the sheet. The dies are water-cooled. In operation the upper girder 40 is raised so that a sheet 20 may be fed into the machine. This girder is then slowly lowered so that the edges of the sheet are gripped by shoes (not shown) whereupon the upper dies come into contact with sheet 20 and the swinging arms 61, 61 are slowly moved so that the movable dies are angularly displaced and brought into their operative positions. Specification 825,392 is referred to.
Patent GB-1195484-A (GB)
Title: Process for Optically Brightening Organic Materials
IPC: C08K5/41
Filed: 1968-02-27
Abstract: 1,195,484. Aryloxazoles; naphthalene - 2,6 - dicarboxylic acid chloride. CIBA Ltd. 27 Feb., 1968 [7 March, 1967], No. 9480/68. Heading C2C. [Also in Divisions C3, C5 and D1] Aryloxazoles of the Formula I: wherein R is a hydrogen atom or a phenyl or methyl group and R<SP>1</SP> is a hydrogen atom or a methyl group, provided that only one of R and R<SP>1</SP> may be a hydrogen atom, or one of R and R<SP>1</SP> is an alkoxycarbonyl group, or a methoxy group, and the other is a hydrogen atom, M is a hydrogen ion, an alkali-metal ion, or an ammonium or amine salt ion; and m is 0, 1 or 2, are obtained by cyclizing the appropriate N,N<SP>1</SP>-di- (o-hydroxyphenyl) naphthalene-2,6-dicarboxylic acid amides by heating them to above 100 C., e.g. in the presence of dehydrating agents and, if desired, sulphonating the products and optionally converting the sulphonic acids so produced into salts. The N,N-di-(o-hydroxyphenyl) naphthalene - 2,6 - dicarboxylic acid amides may be obtained by condensing naphthalene 2,6-dicarboxylic acid or halides or alkyl esters thereof with the appropriate o-hydroxyanilines. The compounds are useful as opticalbrightening agents (see Divisions C3, C5 and D1) The invention also comprises the aryloxazoles of the Formulµ II and III: wherein R<SP>11</SP> is an alkoxycarbonyl group in the 5- or 6-position of the benzoxazole nucleus, as new compounds. Naphthalene - 2,6 - dicarboxylic acid chloride, used as a starting material, may be obtained by reacting the corresponding carboxylic acid with thinoyl chloride in the presence of pyridine and chlorobenzene.
Patent GB-665385-A (GB)
Title: Improvements in and relating to double break switchgear of the enclosed type
Inventor: SIMMONDS HENRY
IPC: H01H9/10
Filed: 1949-04-07
Abstract: 665,385. Switch bases. ENGLISH ELECTRIC CO., Ltd. March 24, 1950. [April 7, 1949] No. 9507/49. Class 38 (v). In an ironclad multi-pole double-break switch or switch-fuse having moving bridging contact members co-operating with fixed contact pairs, the fixed contact pair of each pole is located in a separate channel-shaped insulating member 11 having a cover of arcresisting insulating material provided with apertures 26 through which the contacts 20 of the associated bridging member pass. The members 11 are secured to an insulating panel 1 within the metal casing 2 by the screws 5 which secure the fixed contacts 6, and are provided with apertured barriers 13 between the fixed contacts. The cover of each member 11 may be in two portions 14, 15 secured by screws 16, 17 to the barrier 13, the screws 16, 17 being offset from the longitudinal centre line of the member 11 to prevent incorrect assembly of the cover portions. Alternatively the portions, 14, 15 may differ in length. In the example shown, each bridging member comprises an insulating bar 21 secured to a spindle 25 and carrying multiple knife blades 20 connected to tags 22 between which a cartridge fuse link 23 is bolted.
Patent GB-1170129-A (GB)
Title: An Optical Warning Device for a Motor Vehicle.
IPC: B60Q1/30
Filed: 1967-02-28
Abstract: 1,170,129. Remotely controlled fastenings. KLAUS KLUTH and ERWIN KUPPER [trading as WALTER KLUTH O.H.G.] 28 Feb., 1967, No. 9539/67. Heading E2A. [Also in Divisions F4 and G4] The spring-biased lid of the housing for a vehicle warning lamp is held closed by a catch 9, 11 which is releasable by an electromagnet 12 which may be actuated either manually by the driver or automatically by a centrifugal switch when hard braking occurs.
Patent GB-412723-A (GB)
Title: Improvement in process for the preparation of gluconic acid lactones
Filed: 1933-03-30
Abstract: Gluconic acid lactones are prepared by heating gluconic acid solutions with a glycol ether.  Preferably, an aqueous gluconic acid solution is heated with a glycol ether, and after all or a part of the water has evaporated the lactone is crystallized from p  the glycol ether.  The gluconic acid may be liberated from a suitable gluconate in the presence of the glycol ether.  In an example, a suspension of calcium gluconate in aqueous ethylene glycol monoethyl ether (a) is treated in the warm with sulphuric acid, and the precipitated calcium sulphate is filtered and washed with glycol ether.  The filtrate is boiled with a little calcium gluconate, to remove traces of sulphate, then distilled, after addition of more glycol ether (b), until the temperature is 110 DEG  C., and finally filtered and cooled to cause crystallization of lactone.  The mixture of water and glycol ether distilled off in the final heating is used in the treatment of the next batch of gluconate at stage (a), and the mother liquor from the final crystallization is used at stage (b). Sodium or barium gluconate may be used instead of the calcium salt, and ethylene glycol monobutyl ether or diethylene glycol monoethyl ether may replace the ethylene glycol monoethyl ether.
Patent GB-345498-A (GB)
Title: A canopy or hood for deck-chairs and the like
IPC: A47C7/66
Filed: 1930-03-27
Abstract: 345,498. Awnings for chairs. CRAWLEY, J., 84, Clapham Road, London. March 27, 1930, No. 9752. [Class 52 (ii).] A detachable awning or canopy for use with deck-chairs comprises two box-like members c fitting over the ends of the members a, and each having a socket, formed from two stamped-up lids d, to receive a rod e supporting the awning proper k. Each member c may be fitted with an internal leafspring p.
Patent GB-454428-A (GB)
Title: Improvements relating to the lining of apparatus for use when reacting carbon monoxide with hydrogen at elevated temperature and under pressure
IPC: C07C29/152
Filed: 1935-03-29
Abstract: The interior of apparatus for reacting carbon monoxide with hydrogen for instance for producing methanol is furnished with a coating of zinc or cadmium or their alloys produced by diffusion. The coating may be effected by subjecting the metal surface, such as iron or iron alloy to the action of zinc or cadmium vapour or may be dipped in or sprayed with the molten metal and then heated to above 500 DEG  C. to effect the diffusion; or the apparatus may be embedded in zinc or cadmium powder, the latter preferably in admixture with inert material such as sand or alumina and heated to above 500 DEG  C. Inert gases such as nitrogen, hydrogen or carbon dioxide may be present during the heating.ALSO:The interior of apparatus for reacting carbon monoxide with hydrogen, for instance for the production of methanol, is coated with zinc or cadmium or their alloys produced by diffusion.  The coating may be effected by subjecting the metal surfaces to the action of zinc or cadmium vapour or it may be dipped in or sprayed with the molten metal, or embedded in zinc or cadmium powder (the latter preferably mixed with inert material such as sand or alumina) followed by heatng to above 500 DEG C, if desired in the presence of inert gases such as hydrogen nitrogen or carbon dioxide, to effect the diffusion.ALSO:The interior of apparatus for reacting carbon monoxide with hydrogen, for instance, for the production of methanol, is coated with zinc or cadmium or their alloys produced by diffusion.  The coating may be effected by subjecting the metal surface such as iron or iron alloy to the action of zinc or cadmium vapour or it may be dipped in or sprayed with the molten metal, or embedded in zinc or cadmium powder (the latter preferably admixed with inert matter such as sand or alumina), followed by heating to above 500 DEG  C. if desired in presence of inert gases such as hydrogen, nitrogen, or carbon dioxide, to effect the diffusion.
Patent GB-1183375-A (GB)
Title: Method for Relaxing Stressed Animals
Filed: 1967-03-02
Abstract: 1,183,375. Phenylbutazone, oxyphenbutazone. AGRIPAT S.A. 2 March, 1967 [3 March, 1966], No. 9846/67. Heading A5B. Animals (e.g. horses) in a state of acute stress are relaxed by the internal administration thereto of an effective amount of oxyphenbutazone or phenylbutazone. The active compounds may be administered orally or parenterally in the form of sterile suspensions and solutions, powders, capsules, tablets, presscoated tablets or as animal feed.
Patent GB-484350-A (GB)
Title: Glass furnace provided with gathering basins
IPC: C03B5/00
Filed: 1937-04-07
Abstract: 484,350. Glass manufacture. SOC. CONTINENTALE D'APPAREILS MECANIQUES POUR LA VERRERIE SOC. ANON. April 7, 1937, No. 9892. Convention date, Dec. 17. 1936. [Class 56] [Also in Group XII] In a glass-melting furnace in which the gathering vessels Sa, Sb are situated in niches in the furnace wall, as described in Specifications 392,832 and 394,282, the niches are formed at the angles of a polygonal furnace, and are structurally independent of the main walls, so that the removal of bricks from the latter to obtain access to the delivery troughs G<1>, G<2> will not endanger the stability of the overhanging brickwork of the niches. The troughs G<1>, G<2> are used in turn, the second being brought into service when the first is worn out. Each trough has a replaceable nose-piece n and the inner wall of the niche and the troughs is cooled by circulation of air through the channel C and baffled metal boxes C<1>, C<2> beneath the troughs.
Patent GB-543294-A (GB)
Title: Electrolytic production of nickel
IPC: C25C1/08
Filed: 1940-06-06
Abstract: 543,294. Electro-deposition of nickel. FALCONBRIDGE NICKEL MINES, Ltd. June 6, 1940, No. 9934. Convention date, July 12, 1939. [Class 41] Malleable and annealable nickel is electrolytically deposited directly from an acidified nickel salt electrolyte, containing traces only of impurities, while a great number of minute air-bubbles are released at the bottom of and within a canvas bag 13 in which the cathode 12 is suspended, sufficient air being released to stir vigorously the electrolyte within the bag so as to prevent the accumulation of hydrogen bubbles, or of solid impurities on the cathode and to prevent the electrolyte next to the cathode from becoming unduly basic, thereby preventing the formation of objectionable " berries" on, or pitting of the nickel. The electrolytic cell may comprise a rectangular concrete tank 10 lined with mastic coating and containing a series of anodes 11, and cathodes 12 within double-walled cathode bags 13 containing also air discharging pipes 14 preferably of porous ceramic material. The edges of the cathodes may be received in grooves in a wooden frame to avoid deposition of nickel at the edges and thus facilitate stripping nickel from the cathode starting sheets. A continuous stream of electrolyte, e.g. nickel sulphate acidified with sulphuric acid to a pH value below 4 and at a temperature 40 to 80‹ C. is passed into the cathode bags, anolyte overflowing at 26 whence it is purified and strengthened for recirculation. The current density may be 0.5 to 5 amperes per sq. dem of cathode surface.
Patent GB-687482-A (GB)
Title: Improvements in and relating to gas burners
Inventor: YATES SIMON FRANCIS
IPC: F23D14/06
Filed: 1949-04-13
Abstract: 687.482. Gas burners. PARKINSON STOVE CO., Ltd. April 13, 1950 [April 13, 1949], No. 9986/49. Class 75(i) The supply shank of an aerated gas burner serves as the usual mixing tube for the air and gas received from the usual gas nozzle and an inlet aperture and is at least partly integrally extended into the interior of the burner head. The mixing tube 12 has a venturi shaped bore and terminates at its inner end 13 at or near the radius of the annular burner head to which the axis of the tube is perpendicular. Alternatively the end of the mixing tube may extend in a curved path further into the burner head 10. The upper half of the inner end of the mixing tube may be formed by a mild steel insert 15 embedded in the casting. The burner may be cast in one piece or built up of castings, forgings or pressings welded together.
Patent HK-108095-A (HK)
Title: Magneto-optical recording and/or reproducing device
Inventor: YASUAKI MORIMOTO
IPC: G11B11/10
Filed: 1995-07-06
Abstract: The two sets of data stored in pits and a magneto-optical layer of an optical recording/reproducing device can be read separately by the use of two lasers. The laser which reads/records the data stored in the pits operates at a wavelength  lambda 1 approximately four times the depth of the pits. The laser which reads/records the data stored in the magneto-optical layer operates at a wavelength  lambda 2 approximately twice the depth of the pits. The wavelength of the laser which reads the magneto-optical layer is adjusted and interference between the two signals is avoided.
Patent HK-125195-A (HK)
Title: Hybridisation probes
Inventor: CARR FRANCIS JOSEPH
IPC: C12Q1/6858
Filed: 1995-08-03
Abstract: A method for discriminating a specific base sequence from a variant base sequence comprises subjecting adjacent segments of a target base sequence to hybridisation with a detectable first nucleotide probe and with a second nucleotide probe to form a hybrid, the nucleotide sequence of the first and second probe being such that where they form a split probe hybrid with a complementary target sequence they may subsequently be linked, subjecting any hybrid obtained to linkage and detecting any hybrid obtained. Hybridisation probes and kits for use in such a method are also described.
Patent HU-T49645-A (HU)
Title: Process for reducing undesirable heavy metal content of grape and fruit wines, natural mineral waters, technological waters and communal drinking waters
Inventor: SZAVA MARTA
IPC: C12H1/02
Filed: 1987-04-10
Abstract: Unwanted heavy metal ion concentrations in grape- and fruit-wines, mineral, industrial and commercial potable waters are reduced by adding sodium-humates of 800-1200 pref. appr. 1000 mol.wt.; 10-40 pref. 15-25 mg sodium humate is added for every 1 mg of heavy metal to be removed. Heavy metal humates and excess humates are finally separated.