baber/WOPTO huggingface dataset:
Patent GB-268775-A (GB)
Title: Improvements in the manufacture and production of hydrocarbons or oxygen derivativesthereof
IPC: C07C51/31
Filed: 1927-03-28
Abstract: 268,775. I. G. Farbenindustrie Akt.- Ges. April 3, 1926, [Convention date]. Hydrocarbons; carboxylic acids and acid anhydrides; phenol; formaldehyde; quinone.- Hydrocarbons or their oxygen derivatives are converted into lower hydrocarbons or their oxygen derivatives (in the latter case with the intermediate production of hydrocarbons) by subjecting them to heat treatment with an oxygen-containing gas in the presence of an oxidation catalyst and also to decarboxylation at an elevated temperature, in the presence or absence of water vapour, using catalysts capable of splitting off carbon dioxide. The oxidation and decarboxylation are effected successively in either order, with or without repetition of any treatment, but in any case without separation of the intermediary products. The order of the operations determines the results obtained. For the catalytic oxidation, oxygen-supplying gases such as carbon dioxide and water vapour may be used instead of or along with the oxygen-containing gas; whilst in the decarboxylation of a dicarboxylic acid anhydride into a monocarboxylic acid, water must be present. By the process, for example, acenaphthene is converted into formaldehyde, with formation of naphthalic anhydride, naphthoic acid, naphthalene, phthalic anhydride, benzoic acid, benzene, benzoquinone, maleic anhydride, acrylic acid and ethylene as intermediary products. Starting from naphthalene or its substitution products such as alkyl- or hydroxynaphthalenes, in a similar manner phthalic anhydride, benzoic acid, benzene, benzoquinone, maleic anhydride, acrylic acid, ethylene and formaldehyde may be obtained. Salicylic acid mav be converted into phenol, benzoquinone, maleic anhydride, acrylic acid, ethylene and formaldehyde. According to the examples, (1) benzene is obtained by passing air and naphthalene vapour over heated vanadium pentoxide, and then bringing the cooled reaction mixture into contact with a catalyst containing the oxides of cadmium and aluminium; the naphthalene may be replaced by methylnaphthalene and water vapour may be present; (2) maleic anhydride, together with some benzoquinone, results when air and naphthalene vapour are passed over heated vanadium pentoxide, the products brought into contact with a catalyst containing the oxides of zinc, cadmium and aluminium, and then, if desired. with admixture of preheated air, passed over heated vanadic and salts. Specification 262,101 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the oxidation and the decarboxylation may be effected simultaneously. It refers also to the treatment of nitronaphthalenes. This subject-matter does not appear in the Specification as accepted.
Patent GB-198136-A (GB)
Title: Paving compound and process of making the same
IPC: C08L95/00
Filed: 1922-03-24
Abstract: 198,136. Caudemberg, A. C. de. March 24, 1922. No Parent granted (Sealing fee not paid). Compositions containing bituminous materials and india-rubber.-India-rubber is incorporated with asphalt, bitumen, pitch, &c. by means of liquids of high boiling-point which are solvents for india-rubber and bitumen. Suitable solvents are mixtures of tetrachlorethane with benzine or toluene containing 20 per cent of tetrachlorethane. for cold preparations and 86 per cent for hot ones. An asphalt composition to be compressed cold is obtained by mixing in the cold 100 parts of powdered asphalt with 3-4 parts of a solution containing 2.5-5 per cent of rubber. An asphalt to be used in a fused condition is made by melting together 100 parts of asphalt, 5 parts of bitumen, and 4-5 parts of a solution containing 5-7.5 per cent of rubber, with or without the addition of sand or gravel. A bituminous concrete is obtained by adding 15-20 parts of rubber solution to 100 parts of melted bitumen and mixing this composition with a mineral aggregate or pouring it upon a layer of aggregate in situ.
Patent GB-576270-A (GB)
Title: New yellow azo dyestuffs
IPC: C09B43/00
Filed: 1944-05-08
Abstract: Yellow azo dyestuffs are made by heating a 4 : 41 - dibenzthiazyl - (2) - azobenzene which has directly substituted in it at least one chloromethyl group, and may optionally carry one or more alkyl (1-4C) or alkoxy (1-4C) substituents, with a tertiary amine.  The products, which appear to be quaternary ammonium salts, dye cellulosic materials yellow from a dyebath containing mild alkali, e.g. sodium carbonate or bicarbonate.  In examples, dyestuffs are made from di-(chloromethyl)-4 : 41-di-(6-methylbenzthiazyl-2)-azobenzene and pyridine, tetramethylthiourea, triethylamine or hexahydro-dimethylaniline and the dyeing of cotton yarn is described. Other components specified are di-(chloromethyl)-4 : 41-di-(benzthiazyl-2)-azobenzene and di-(chloromethyl)-4 : 41-di-(6-ethoxybenzthiazyl - 2) - azobenzene, and triethanolamine and b -diethylaminoethyl alcohol.  A sample has been furnished under Sect. 2 (5) of the dyestuff obtained by the action of pyridine on di-(chloromethyl)-4 : 41-bis-(4 : 6-dimethylbenzthiazyl - 2) - 2 : 21 - dimethylazobenzene (obtainable by the action of sym.-dichlordimethyl ether on 4 : 41-bis-(4 : 6-dimethylbenzthiazyl - 2) - 2 : 21 - dimethylazobenzene, which may be obtained by oxidizing dehydrothio-m-xylidine with sodium hypochlorite).  4 : 41-Dibenzthiazyl-(2)-azobenzene derivatives used as starting materials above are made by treating the appropriate 4 : 41-dibenzthiazyl-(2) - azobenzene with sym. - dichlorodimethyl ether. 4 : 41-Di-(benzthiazyl-2)-azobenzene is made by the oxidation of 2-p-aminophenylbenzthiazole.  4 : 41-Di-(6-ethoxybenzthiazyl-2)-azobenzene is made by the oxidation of 2-p-aminophenyl-6-ethoxybenzthiazole, obtainable by the reduction of 2-p-nitrophenyl-6-ethoxybenzthiazole, itself obtainable by condensation of the zinc salt of 2-amino-5-ethoxythiophenol with p-nitrobenzoyl chloride.
Patent GB-285675-A (GB)
Title: Improvements in pumps
IPC: F02M59/02
Filed: 1927-03-29
Abstract: 285,675. Iversen, P. A. S. March 29, 1927. Two barrels in series; relief devices.-A fuel pump 3, 6 for an internal-combustion engine is combined with an auxiliary pump 2, 4, which, during the delivery stroke, maintains in the gland 7, 8 of the plunger 6 a fluid pressure nearly equal to the pressure in the barrel 3. The pressure in the barrel 2 is determined by the setting of a relief valve 10 controlling communication with the inlet port 14. Fuel enters the barrel 2 through a valve 9 and is delivered past the inlet valve 16 of the pump 3.
Patent GB-542594-A (GB)
Title: Manufacture of anthraquinone dyestuffs
IPC: C09B5/28
Filed: 1940-05-15
Abstract: 542,594. Dyes. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). May 15, 1940, No..8695. [Class 2 (iii)] Trianthrimide monocarbazoles of the general formula in which Aq stands for an anthraquinone nucleus, and AQ for an anthraquinone or benzoylaminoanthraquinone residue are made (1) by inter-acting 1 : 6-dichloranthraquinone with an equimolecular proportion of an amine AQNH 2 , ring-closing to the carbazole with aluminium chloride, and inter-acting the carbazole with the same or a different amine AQ.LNH 2 , (2) by inter-acting 1-amino-6-chloranthraquinone with an equimolecular proportion of AQ C1, ring-closing to the carbazole with aluminium chloride, and inter-acting the carbazole with an amine AQNH 2 , or (3) interacting 1: 6-dichloranthraquinone with two molecular proportions of the same or different amines of the formula AQNH  2  and ring-closing to a monocarbazole with aluminium chloride at a relatively low temperature. The products are vat dyes dyeing cotton in brownish and orange shades. In examples (1) 1 : 6-dichloranthraquinone is condensed with 1-aminoanthraquinone (1 mol.) fused with an aluminium chloride-sodium chloride mixture, and the product condensed with 1-aminoanthraquinone or 1-amino-5-benzoylaminoanthraquinone, (2) 1 : ,6-dichloranthraquinone is condensed, with 1-amino-4 or 5-benzoylaminoanthraquinone (1 mol.) in nitrobenzene, aluminium chloride is then added and the mixture heated to form the carbazole which is then condensed with 1-amino-4 or 5- benzoylami noa nthra qui none, and (3) 1-6 dichloranthraquinone is condensed with 1-amino-4 or 5-benzoylaminoanthraquinone (2 mols, or 1 mol. of each may be used) and the resulting trianthrimide is converted to the monocarbazole by heating with aluminium chloride in nitrobenzene;
Patent GB-1494686-A (GB)
Title: Process for the production of polyurethane solutions
IPC: C08G18/12
Filed: 1975-03-03
Abstract: 1494686 Polyurethane solutions AKZO NV 3 March 1975 [1 March 1974] 8725/75 Heading C3R [Also in Divisions D1 and B2] A polyurethane solution is prepared by reacting one mol of a polyester and/or polyether with terminal hydroxyl groups and a molecular weight of from 800-4000 and from 1À2-9 mols of a C 2 -C 9  aliphatic glycol simultaneously with a diisocyanate, preferably diphenyl methane- 4,4<SP>1</SP>-diisocyanate, in dimethyl formamide at a temperature of from 80-110‹ C., the concentration of the starting materials and reaction products formed during the reaction together being from 25-45% wt. and a molar ratio of NCO groups to OH groups of 10ÀŒ08 being maintained during the reaction, and stopping the reaction by the addition of a monohydric alcohol, preferably ethanol in DMF, after a viscosity of from 200-3500 poises at 20‹ C. has been reached, and optionally adding a stabilizer after the reaction has been stopped. The polyester or polyether preferably has a reaction velocity constant K 2  of from 1À0 to 10 Î 10<SP>-3</SP> l Î eq<SP>-1</SP> Î sec<SP>-1</SP>, when reacted with 4,4<SP>1</SP>- diphenylmethane diisocyanate. The polyester or polyether may be first deactivated and then adjusted by the addition of an activator to an activity such that K 2  has the above value. Suitable activators are tertiary amines, e.g. 1,4<SP>1</SP> - diaza - (2,2,2) - bicyclooctane. The preferable stabilizer is salicylic acid in DMF. Other suitable stabilizers are ethylene diamine tetraacetic acid, nitrilotriacetic acid, hydrochloric and phosphonic acids. The polyurethane solutions may be spun into filaments; or converted into films; or processed into shaped articles after removal of the solvent; or for impregnating and coating textile substrates in the manufacture of synthetic microporous leather, e.g. a non-woven substrate impregnated with a solution of the polyurethane may be treated with a non-solvent for the polyurethane, e.g. water, thereby coagulating the polyurethane, and the thus impregnated textile may be then coated with a polyurethane solution. In Examples 1-9 polyurethane solutions are prepared as above from diphenylmethane-4,4<SP>1</SP>- diisocyanate and any one of the following OH- containing components: (1) polyethylene adipate and either ethylene glycol or 1,6-hexanediol or 1,4-butanediol; (2) polytetramethylene glycol and ethylene glycol; (3) polycaprolactone and ethylene glycol; (4) polyhexanediol carbonate and 1,4-butanediol; (5) polyhexanediol carbonate, polybutylene ethylene adipate and ethylene glycol; using DMF as solvent, ethanol to stop the reaction, and salicylic acid as stabilizer. The solutions form elastic transparent films by evaporating the solvent on glass plates. In Example 10 a paste coating composition prepared from the polyurethane solution (2) above; a polymer based on methacrylic acid; DMF and water, a silicone oil and a dye paste is applied to a non-woven substrate which has been impregnated with a polyester urethane, followed by coagulation with water to form microporous surface layers.
Patent GB-1185298-A (GB)
Title: Reduction Gear Assembly
IPC: F26B11/02
Filed: 1969-02-18
Abstract: 1,185,298. Toothed gearing; universal joints. SOC. FIVES LILLE-CAIL. 18 Feb., 1969 [19 Feb., 1968], No. 8728/69. Headings F2Q and F2U. A tubular grinding mill 12 is driven by a pair of pinions 1 engaging a ring pinion 2 flexibly connected to an extension 10 of the drum trunnion 11 by a universal joint consisting of perpendicular pairs of coplanar lugs 14, 15 on the extension 10 and pinion 2 respectively and which are mounted between a pair of annular discs 7 to which they are connected by pins 6, 9 incorporating ball joints 8.
Patent GB-1369516-A (GB)
Title: Drive assembly for weaving looms
IPC: D03D51/00
Filed: 1972-02-25
Abstract: 1369516 Looms driving WEEFAUTOMATEN PICANOL NV 25 Feb 1972 [3 March 1971] 8829/72 Heading D1E A flywheel 3, freely rotatable on a shaft 2, is electromagnetically connected to the shaft 2 so that one epicyclic gear drives the loom crankshaft normally, one epicyclic gear drives the loom in reverse, the loom may be driven slowly, or for a single pick, may be braked, or stopped by weft or warp motions.
Patent GB-1004968-A (GB)
Title: An apparatus for ionizing gas and in particular molecular oxygen for inhalations
IPC: A61M15/02
Filed: 1962-03-07
Abstract: 1,004,968. Inhalation apparatus. AEROTEROPICA S.R.1. March 7, 1962 [March 9, 1961], No. 8845/62. Heading A5T. [Also in Division H1] Portable inhalation ionisation apparatus comprises a casing 1 containing a cylinder 15 of the compressed gas, such as oxygen, to be ionised, means for releasing gas from the cylinder, an ionising chamber 2 for receiving the released gas through the tube 18, electrical means for ionising the gas in the chamber 2, and an outlet nozzle 23 for conducting ionised gas from the chamber 2, the means for releasing the gas and the ionising means being interconnected and operable by a single operating mechanism. The operating mechanism can be such that the ionising means is operative before, during and after the flow of gas from the cylinder 15. The means for releasing the gas comprises a plunger 11 adapted upon movement in one direction to open a valve releasing gas to the chamber 2, the plunger 11 being mechanically connected to a switch 37 in a circuit for supplying current to the electrical ionising means whereby actuation of the plunger causes the switch to be closed before opening of the valve. The plunger 11 is adapted to open the valve by pressing a rod 6 towards the cylinder 15, the rod having a substantially conical point 6<SP>1</SP> adapted in the fully advanced position to prevent the release of gas from the cylinder. Spring means are provided for returning the valve, plunger and switch to their rest positions. The ionising means comprises a fixed electrode 28, a movable electrode 29 spring urged towards the fixed electrode, and a coil 36 which upon energization attracts the movable electrode away from the fixed electrode, the coil and the two electrodes being connected in series whereby energization of the coil separates the two electrodes until the flow of current is cut off so that the electrode 29 returns to a position contacting the electrode 28 and re-establishes current flow. The movable electrode 29 is mounted on a rod 33 attracted by the coil 35, one end of the coil being connected to the electrode 29 by the spring 34 and the other end to the switch 37. The use of electrical means producing U.V. or I.R. rays for ionising the gas is also referred to.
Patent GB-1029748-A (GB)
Title: Recovery of oleum in methyl methacrylate synthesis
IPC: C01B17/92
Filed: 1965-03-02
Abstract: Oleum is produced by burning, preferably at 850-1150 DEG  C., ammonium sulphate-containing residues of methyl methacrylate production, to give a gas containing SO2, oxidizing the SO2 to SO3 and absorbing the SO3 in conc. H2SO4\t to form oleum, which when diluted to 6% may be recycled to prepare more methyl methacrylate. Preferably, the residues are sprayed with air and a hydrocarbon gas into a furnace at 950-1050 DEG  C.; the resulting gas containing O2, SO2, CO2 and N2 is cooled to less than 40 DEG  C., scrubbed, heated to 300-500 DEG  C. and passed over a catalyst bed preferably vanadium-containing at 400-600 DEG  C. with added oxygen in amount 100-200% molar excess.  The gas is cooled to less than 300 DEG  C. and the SO3 absorbed by passage over the surface of a stream of sulphuric acid or through a bubble-plate or packed tower in countercurrent to H2SO4, to form 20% oleum.
Patent GB-1259877-A (GB)
Title: Method and device for assembling warps for fabrics
IPC: D02H3/00
Filed: 1969-02-19
Abstract: 1,259,877. Preparing short warps. KONINKLIJKE NEDERLANDSE TEXTIEL-UNIE N.V. 19 Feb., 1969 [22 Feb., 1968], No. 8904/69. Heading DIM. Apparatus for preparing short lengths of warps comprises an outer winding former 2 having arms 3-10 and an inner former comprising a shaft 1 and at least two moveable thread guides 11, 12 which move to a selected pattern to allow a selected thread to produce a turn around the former 2 and non-selected thread to wrap around the former 1. In Figs. 1 and 7 the yarn guides move radially between the bars 3-10 in such a way that odd numbered threads 16 when being wound pass always inside the arm 5 and even numbered threads 15 always pass inside the arm 6 to allow for leasing. The yarn guides 11, 12 and former 12 move apart gradually to prevent interference of the warps during winding. In a modification (Fig. 11) the arms 3-10 are replaced by discs 22, 23 and yarn guides 24, 25 each put one yarn on each disc. Threads are crossed for leasing by separators 36, 37 on radially extending rotatably mounted arms 38, 39 or alternatively by passing the threads over or above arms 46 (Fig. 12). The warps from all the discs are placed together to form a single sheet of warps.
Patent GB-216842-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/30
Filed: 1924-04-08
Abstract: 216,842. Compagnie pour la Fabrication des Compteurs et MatÚriel d'Usines Ó Gaz. May 28, 1923, [Convention date]. Gas-meters. - In a gas-meter of the type in which two reciprocating liquid - sealed bells are suspended from interconnected rocking levers and all the moving parts except the bells are protected from contact with the gas or liquid vapours, the gas-inlet passage to the meter is closed by a float-operated valve when the liquid level in the meter falls to a predetermined level. The meter shown comprises two bells 6, movable in chambers in the lower portion of the meter casing and suspended from counterweighted levers 9 which are connected by rods 32 at their outer ends to cranks 33 keyed at 90‹ apart to a shaft 34 operating the registering mechanism. The bell chambers are separated by a wall 3 which is made double in the middle to enclose a guided float 5 supported by the sealing liquid. When the liquid is above the predetermined level the float 5 maintains open a valve 38 controlling the passage of gas from the meter inlet 16 through a gas-box 20 to a distribution-box 21 in the upper portion of the meter. The box 21 is fitted with two fourway conical valves which are actuated through rods 35, 36 by the crank shaft 34 to admit and discharge gas alternately to the space above and below the bells. The valves are connected by passages 29, 30 to the meter outlet 17. The bells are guided by rods 13 sliding in rings 12 in gas tubes carried by cylinders 11 arranged inside the bells. In order to form the liquid seal for the bells the meter is filled with oil through a tube 19 to a. level determined by a liquid-sealed orifice 14. Access of gas to the mechanism in the upper part of the meter is prevented by the provision of leather diaphragms 10 where the levers 9 pass into the mechanism casing. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention is an improvement in or modification of the gas meter described and claimed in Specification 153,289. This statement does not appear in the Specification as accepted.
Patent GB-1253445-A (GB)
Title: Method of controlling pipeline slurries
Inventor: REISS LEWIS PHILIP
IPC: F17D1/08
Filed: 1969-02-20
Abstract: 1,253,445. Automatic control of slurry concentration. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. Feb. 20, 1969 [Feb. 23, 19681 No. 9170/69. Heading G3R. In a system for pumping slurry through a pipeline at the minimum stable velocity, the speed of a pump is automatically controlled in dependence on any difference between measured spatial and transport concentrations of the solid particles. As shown a slurry is pumped through a pipeline 10 by a pump 16 driven by a diesel engine 90. A densitometer 30 e. g. of the gamma radiation type, associated with the vertical outlet of pump 16, where the distribution of solids is homogeneous, produces a signal 54, dependent on the solids transport concentration, which is compared in a solid-state differential amplifier 50 with a signal 52 from a second similar densitometer 20 associated with a horizontal section of the pipeline where the spatial concentration would be different due to lagging of the solids near the pipe if the flow velocity were too low. Any difference produces an output 70 which controls a servomotor 80 adjusting the throttle of diesel engine 90 so that sufficient flow velocity is maintained to remove the difference. Solids such as coal, ore, wood, sulphur, potash and liquids such as water and hydrocarbons are referred to.
Patent GB-1429106-A (GB)
Title: Sampling melts
IPC: G01N1/14
Filed: 1974-02-28
Abstract: 1429106 Sampling melts for gas determination LEYBOLD-HERAEUS-VERWALTUNG GmbH 28 Feb 1974 [28 Feb 1973] 9199/74 Heading G1B Apparatus for taking a sample from a melt for determination of the gas content of the melt comprises a closed evacuated tubular body formed by a thin walled envelope 1 and a cap 2 which is fusible in the melt, tubular body 1 having in it a constriction 12 dividing the interior of the body into parts communicating through an orifice, the orifice in use of the apparatus becoming sealed by a plug of solidified melt material so that gases given off by the melt are quantitatively collected within the body, the or each of the joints in the external wall of the hollow body being sealed permanently vacuum-tight by metallic sealing material. In the embodiment shown, the tubular body 1 is positioned inside heat-insulated tubular body 20, the lower end of body 20 being temporarily protected by fusible beak 27. A flow of protective gas, for example argon, from cylinder 34 is passed through tube 20 while the apparatus is being immersed in the melt. For taking the sample, valve 29 is closed and valve 30 opened to allow flow of gas through channel 36, or alternatively into evacuated space 35, when the melt shoots into space 44. The probe may contain aluminium wire (80) in Fig. 1 (not shown) to react with oxygen or reactants such as Li, Ca, Mg, Al, CaC2 (72, 78) Fig. 5 (not shown) to react with steam.