baber/WOPTO huggingface dataset:
Patent GB-343274-A (GB)
Title: Improvements in or relating to gas and like stoves
IPC: F24C1/14
Filed: 1930-01-17
Abstract: 343,274. Gas stoves. WHITFIELD, C., 2, Layer Gardens, Acton, London. Jan. 17, 1930, No. 1627. [Class 126.] Air-heating stoves.-A gas stove having a burner with or without radiant elements and a surrounding radiator shell is provided with one or more screens behind the radiator, forming narrow air-heating passages which are open at the top, bottom, and sides, with or without one or more passages which are similar but open at the top and bottom only. Fig. 3 shows an incandescent gas fire having a radiator b, behind which are two plates e, f forming between them an air-heating passage open on all sides, whilst between the plate e and the back of the radiator is formed a passage open at top and bottom only. A heat-insulating baffle h may be provided. Fig. 5 shows a stove heated by a ring burner k and having a cylindrical radiating body l behind which are two semicylindrical - shields n, o, forming the airheating passages. A deflector plate p in the top of the stove may be removed to allow a utensil to be heated. A similar removable plate may be provided on the radiator of the stove shown in Fig. 3.
Patent GB-1364220-A (GB)
Title: Dewatering of aqueous suspensions
IPC: C09K23/52
Filed: 1973-01-12
Abstract: 1364220 Dewatering of aqueous suspensions I C I AMERICA Inc 12 Jan 1973 [14 Feb 1972] 1771/73 Heading C1C A process of facilitating the dewatering of an aqueous suspension of finely divided solid material which comprises mixing with the suspension a cationic polymer or copolymer of a compound having the formula wherein each R is independently H or an alkyl group containing 1-3 carbon atoms and the total number of carbon atoms in the R groups does not exceed 4, or a salt (including quaternary salt) thereof. The copolymer may contain at least one polymerized monomer of the formula (I) wherein R1 is hydrogen or alkyl radical containing from 1-4 carbon atoms and Y is wherein R2 is hydrogen or alkali metal and wherein R3 is hydregen, alkali metal or wherein each R4 is independently an alkyl group having from 1-4 carbon atoms and X is an anion. Inorganic compounds such as Na2SO4, NaCl, Al2(SO4)3 (NH4)2SO4, FeCl3, FeCl2, AlCl3, alum and lime may be added to the aqueous suspension. After treatment with the polymer or copolymer the suspension may be subjected to a filtration (using a rotary vacuum filter centrifugation decantation or flotation step. In the examples sewage sludge is treated with homo- or copolymers prepared from N-vinyl imidazole, and/or dimethyl sulphate quaternary salts of N-vinyl imidazole and/or vinyl-2- methyl imidazole. The comonomers specified in the examples are acrylamide, dimethyl quaternary salts of dimethylaminoethyl methacrylate and/or dimethyl aminoethyl acrylate, acrylonitrile, and vinyl sulphonic acid.
Patent GB-1423302-A (GB)
Title: Isocyanate terminated polymers and the formation of block copoly mers
IPC: C08F8/30
Filed: 1973-01-12
Abstract: 1423302 lso(thio)cyanate terminated polymers; block polymers FIRESTONE TIRE & RUBBER CO 12 Jan 1973 [19 Jan 1972] 1863/73 Headings C3P and C3R Polymers containing at least one terminal isocyanate or isothiocyanate group are obtained by polymerization of at least one monomer, which is an olefinic nitrile, ester, acid, nitro compound or amide, conjugated diene, vinyl substituted aromatic compound, a vinyl pyridine, a vinyl quinoline, a dihydronaphthalene, a thioketone, an aldehyde or thioaldehyde, an oxirane or thiirane, or an oxetane or thietane, in the presence of an organoalkali metal initiator and reacting the product with a compound containing at least two isocyanate or isothiocyanate groups to produce a mixture of coupled and terminated products. The products are then reacted with active hydrogen containing monomer(s) to form a polymer block attached thereto via the terminal iso(thio)cyanate group. Specific terminal polymer blocks are polyamide, (thio)urethane polymer, (thio)urea polymer, mixed ureaurethane polymer and polyimide. Where a polyisocyanate is used in formation of such condensation blocks it may be constituted by an excess thereof added in the termination step. The block polymer products may include some of the non-blocked condensation polymer and the coupled polymers and may be peroxy cured, optionally in the presence of fillers. In typical examples, butadiene or styrene or a mixture thereof are polymerized using butyl lithium and various hydrocarbon solvent and suspension media, including tetrahydrofuran or tetramethylethylene diamine in some cases as randomizing or 1,2-/1,4- structure controlling agents, followed by reaction with isocyanates such as toluene diisocyanate or isophorone diisocyanate, and block copolymerization with caprolactam; m - phenylenediamine, water or hexamethylene diamine/toluene diisocyanate; pentane diol/toluene diisocyanate; pentane diol/hexamethylene diamine/toluene diisocyanate; and benzophenone tetracarboxylic dianhydride/m-phenylene diamine.
Patent GB-990963-A (GB)
Title: Improvements in or relating to electric motor control systems
Inventor: KING JACK ASHER
IPC: B23K9/073
Filed: 1961-01-17
Abstract: 990,963. Automatic control systems for arc welding. BRITISH OXYGEN CO. Ltd. Jan. 17,1962 [Jan.17, 19611, No. 1896/61. Heading G3R. [Also in Division H2] The energizing current of a winding of an electric motor is controlled by a transistor the conductivity of which is varied in dependence upon a monitoring voltage. As applied to a welding system in which the motor feeds a consumable electrode to a welding arc at a speed which is controlled to maintain desired arc conditions, the arc voltage is applied to a rectifier 1 and is compared with a reference voltage applied across a rectifier 3; any voltage difference is smoothed by an LC circuit 6,11 and causes current flow in resistors 8, 9. Any voltage across resistor 9 is applied over contacts 10 of a welding current relay to the base of transistor 12 which controls the conductivity of power transistors 26, 27, 28, 29 controlling the armature current, derived from rectifier 30, of the separately excited D.C. motor 25 feeding the electrode. A change-over switch 31 for reversing motor 25, an "inching" switch 20, 22 for the motor, and a braking resistor 34 permanently connected across the motor armature are also provided. In operation, if the arc voltage exceeds the reference voltage, the resulting voltage applied to transistor 12 renders it conductive so causing the power transistors 26-29 to supply armature current to the motor 25 which moves the electrode in the direction to reduce arc voltage. If the arc voltage falls below the reference voltage, transistor 12 and therefore transistors 26-29 cease to conduct whereby the major part bf the motor supply voltage appears across the transistors 26-29 and not across the motor 25 which is then dynamically braked.
Patent GB-1024244-A (GB)
Title: Improvements in or relating to a homogenizing device for thermoplastic materials in an extrusion machine
IPC: B29C48/09
Filed: 1963-01-16
Abstract: 1,024,244. Extrusion machines. R. A. J. VAN PEBORGH. Jan. 16, 1963 [Jan. 19, 1962], No. 1995/63. Heading B5A. Between the barrel 1 and the die 7 of an extrusion machine for thermoplastic material is interposed a homogenizing device for the material comprising a mandrel 5 disposed coaxially within a tube 4 to form an annular channel 6 which is of substantially constant cross-section throughout its length but successively increases progressively in diameter whilst decreasing in thickness and then decreases in diameter whilst increasing in thickness. The surfaces of the mandrel and sleeve may be curved as shown or have conical formations.
Patent GB-850072-A (GB)
Title: Improvements in or relating to cartons and like containers
Inventor: WAGGETT ROBERT WILLIAM
IPC: B65D5/30
Filed: 1956-01-20
Abstract: 850,072. Cartons. NEW MERTON BOARD MILLS Ltd. Jan. 17, 1957 [Jan. 20, 1956], No. 2026/56. Class 18. A carton having extensions 44<SP>1</SP> and flaps 5, 51, 6, 61 on the base 1 and opposite side walls 2, 3 overlapping to form end walls, has tongues 7, 71 on flaps 5, 5i entering slots 8, 8<SP>1</SP> in extensions 4, 4<SP>1</SP> to maintain the carton erect. The remaining flaps 6, 6<SP>1</SP> are enclosed between the other extensions and flaps and the upper part of the extensions 4, 4<SP>1</SP> folded over with the tongues 7, 7<SP>1</SP> to lie parallel to the base. Portions 9, 10 form covers.
Patent GB-158546-A (GB)
Title: Method of treating fuels
IPC: C10L1/32
Filed: 1921-01-14
Abstract: The stable composite of coal dust &c. in a liquid hydrocarbon usually known as "colloidal fuel" is separated into a paste and into a liquid containing only a small proportion of suspended particles by centrifuging, by reducing the viscosity of the liquid and allowing the suspended particles to settle out, or by filtration through cheese cloth, linen, or filter paper, or by any combination of these processes.  The necessary reduction in viscosity may be effected by heating, or by adding benzol, alcohol, or other suitable liquid.  The liquid may be used, mixed or not with alcohol or gasoline, as a fuel for internal combustion engines, and the percentage of molecular and colloidal coal may be increased by stabilizing further coal dust in it and, if required, again separating the larger particles.  The paste (thinned or not with liquid hydrocarbon) may be used as a fuel.
Patent GB-534357-A (GB)
Title: Process for the production of hydrocarbons by conversion of carbon monoxide with hydrogen
IPC: B01J23/755
Filed: 1940-02-05
Abstract: 534,357. Synthesis of hydrocarbons from carbon monoxide and hydrogen. POTTS, H. E. (Naamlooze Vennootschap Internationale Koolwaterstoffen Synthese Maatschappij (International Hydrocarbon Synthesis Co.)). Feb. 5, 1940, No. 2177. [Class 2 (iii)] [Also in Group III] Hydrocarbons with more than one carbon atom in the molecule are prepared by catalytic conversion of carbon monoxide with hydrogen using catalysts containing iron and nickel which have been prepared by gradually precipitating reducible iron and nickel compounds from mixed solutions of salts of these metals at a temperature of 40‹C. or below, by gradual addition to a solution maintained at a pH-value of not less than 8 during the precipitation. The preferred method is to allow the mixed salt solution to flow drop by drop into the alkaline solution of the precipitating agent in such a manner that the operation takes at least 3 hours and even 12 hours or more. The catalysts may contain activators such as aluminium oxide, magnesium oxide, or other metal oxides not reduced under the conversion conditions. If the reduction of the catalysts is difficult due to the presence of activators, silver is added before or after the precipitation of the catalyst. The catalysts. of the present invention may be used on carriers such as diatomaceous earth. The conversion of the carbon monoxide with with hydrogen may be carried out between 160‹-250‹C. and at pressures between 10-100 atmospheres. In an example, an aqueous solution containing iron, nickel and aluminium nitrates is allowed to flow slowly into a potassium carbonate solution and the precipitate filtered and dried. The product so obtained is reduced with hydrogen and used in the conversion process.
Patent GB-368919-A (GB)
Title: Method of making vitamin-containing beers
IPC: C12C5/02
Filed: 1931-01-23
Abstract: Yeast is destroyed in order to liberate the vitamins by disintegrators, colloid mills, gear pumps, spark discharges or by radiation with short-waved light such as Röntgen rays.ALSO:Vitamin-containing beverages, particularly beer, are made by adding to the wort during the main fermentation or to the fermented beverage during the secondary fermentation, more vitamins in the form of destroyed opened yeast than the living yeast can absorb.  Yeast is cultivated separately and destroyed and the fitered or unfiltered yeast cell sap is added to the wort before the conclusion of the fermentation or added to the finished beverage during the secondary fermentation, or the fermented beverage is removed from the yeast used, the latter is destroyed and the yeast cell sap obtained is admixed with the fermented beverage during the secondary fermentation.  The yeast may be destroyed by disintegrators, colloid mills, gear pumps, spark discharges, or by radiation with short-waved light such as Röntgen rays.  It is found that beer treated in this way conditions more rapidly than ordinary beer and the colour is better.  Specification 367,909 is referred to.
Patent GB-959056-A (GB)
Title: Aminoquinones
Filed: 1962-01-23
Abstract: Mono-substituted amino-quinones of the formula:-<FORM:0959056/C2/1> <FORM:0959056/C2/2> where R is an alkyl, alkenyl or aralkyl radical containing from 2 to 12 carbon atoms and R1 is methyl or the same as R, are prepared by mixing 1 mole of 1, 4-benzoquinone or 1, 4-naphthoquinone with a complex of a copper salt and a primary amine having the formula RNH2 or R1NH2, which complex is soluble under the reaction conditions, the amount of copper salt being from 0.1 to 4 moles and the amount of primary amine being from 1 to 10 moles for each amino group on the monosubstituted amino quinone of the above formula, while bubbling oxygen through the resulting mixture for 0.25 to 4 hours.  The term "aralkyl" includes aralkyl radicals which bear a nuclear halogen substituent. Amines used in examples are methylamine, ethylamine, n-propylamine, isopropylamine, n-butylamine, sec.-butylamine, isobutylamine, tert.-butylamine, 2-ethylhexylamine and allylamine. Reference is also made to the use of methallyl amine, 5-amino-1-hexene, cyclohexylamine, 2-methyl cyclohexylamine, cyclopentylamine, benzylamine, 2-phenethylamine and 4-chloro-2-phenethylamine.
Patent GB-790164-A (GB)
Title: Process for the production of sodium and potassium boron hydrides
IPC: C01B6/00
Filed: 1956-01-25
Abstract: Sodium or potassium borohydrides are prepared by reacting boron trifluoride, or an etherate thereof, in solution with sodium or potassium hydride substantially in the molar ratio 1 : 4, in the presence of an amount of alkyl borate which is substantially equimolar with respect to the alkali metal hydride, and distilling the alkyl borate from the reaction mixture on completion of the reaction.  The solution of sodium hydride and methyl borate in tetrahydrofurane is heated at 70-75 DEG  C.  The solution is cooled to room temperature and boron trifluoride as the etherate with tetrahydrofurane is added.  After completion of the reaction the methyl borate is distilled off with the tetrahydrofurane at 80-100 DEG  C.  The sodium borohydride may be extracted from the fluoride by solvent, e.g. isopropylamine.  The sodium borohydride may be reacted with aluminium or lithium chloride to prepare aluminium or lithium borohydrides.
Patent GB-1194313-A (GB)
Title: Aqueous process for preparing Pseudoureas and Acid Addition Salts thereof
Inventor: SCHAEFER FREDERIC CHARLES
IPC: C07C273/00
Filed: 1969-01-15
Abstract: 1,194,313. Pseudoureas. AMERICAN CYANAMID CO. 15 Jan., 1969 [16 Jan., 1968], No. 2497/69. Heading C2C. Alkyl pseudourea salts of the formula where R is derived from a monohydric organic alcohol having at least partial miscibility with water and wherein X is hydrochloric or hydrobromic acid, are prepared by bringing into contact in an environment containing substantial amounts of water an acid X, a cyanamide compound and a monohydric alcohol which is at least partially miscible with water. In the examples, o-methylpseudourea, oisopropylpseudourea, o-npropylpseudourea and o-allylpseudourea hydrochlorides are obtained by reacting mixtures of the appropriate alcohol, hydrochloric acid and cyanamide in an aqueous environment.
Patent GB-215061-A (GB)
Title: Improvements in electric heaters for cooking apparatus
IPC: F24C7/04
Filed: 1923-01-27
Abstract: 215,061. Hunt, H., and Mason, E. L. Jan. 27, 1923. Resistances.-The upper surfaces 5<x> of inclined fire clay slabs 5 supporting resistance coils 4 are curved to form a series of point supports for the coils. Specification 176,055, [Class 39 (iii), Heating by electricity], is referred to.
Patent GB-1462681-A (GB)
Title: Apparatus for applying labels
IPC: B65C1/00
Filed: 1974-01-18
Abstract: 1462681 Labelling apparatus BETTER BUILT ENG CORP 18 Jan 1974 [16 March 1973] 2550/74 Heading B8F In labelling apparatus in which labels 45 are peeled from a carrier strip 19 during travel of the strip from a supply reel 15 to a take-up reel by way of a peeling bar 25 and are retained by suction on the grid-like base 31 of a label applicator 27 prior to being blown on to passing containers 47 by pressurized air fed from a manifold 51 of the applicator, the manifold comprises a chamber 79, which is defined by upper and lower plates 65 and 67 separated by spacers 71 and 73, the lower plate having a plurality of outlet apertures 101 which are in partial registry with openings 17 in a masking plate 115 slidably and removably received between the plates through an end slot 81. Some of the apertures 101 register with the openings 17 whilst others are masked off by the masking plate. The masking plate enables the crosssectional shape of the air blast delivered to be tailored to the particular size and shape of the labels utilized. When different labels are used, the masking plate is replaced by another having a more suitable array of openings. Compressed air is fed into the chamber by way of a solenoidoperated valve 87 past a diffuser plug 95. Extension tubes 103 are screwed in the apertures 101 to discharge the air blast adjacent the gridlike base. The manifold is adjustably mounted in the housing 29 of the applicator.
Patent GB-145371-A (GB)
Title: Improvements in amusement devices
IPC: A63G7/00
Filed: 1920-01-27
Abstract: 145,371. Stock, J. J. Jan. 27, 1920. Amusement apparatus.-Relates to apparatus of the type in which passengers sit in a circular car which is moved in an irregular and unexpected manner. According to the invention the car 1 is fitted with seats 8 and is mounted on two diametrically opposite wheels 13. It is also partly supported by castors 12. The wheels 13 are driven by an electromotor 11 through clutches and gearing 26, 37, so arranged that the operator, who is seated in a central well W, can, by means of levers 34, cause the wheels 13 to rotate in the same or in opposite directions, or either or both can be stopped. In this way a great variety of movements can be imparted to the car. In a modification the wheels 13 are driven by two separate reversing motors. Current for the motor 11 is obtained from a battery 10 or other source. A buffer 2 surrounds the ear 1.
Patent GB-877769-A (GB)
Title: Differential pulse or frequency rate circuits
IPC: H03K5/26
Filed: 1960-01-25
Abstract: 877,769. Transistor pulse circuits. WESTING- HOUSE ELECTRIC CORPORATION. Jan. 25, 1960 [Jan. 28, 1959], No. 2584/60. Class 40(6) A circuit for producing output pulse trains having a frequency representative of the difference in frequency of two input pulse trains comprises a combination of two bistable circuits in cascade and static logic circuits such that an output pulse train occurs at one output terminal if one input frequency is greater than the other and at another terminal if it is less than the other. Fig. 3 shows a circuit formed from "NOR" circuit elements of the type shown in Fig. 1 in which the transistor is non-conducting and thus provides an output voltage at its collector only in the absence of signals at all the terminals 10, 12 and 14. The "NOR" circuits 140 and 240 are crosscoupled to form a first bistable circuit and 160 and 260 form a second bistable circuit while circuits 170 and 270 act as inverters. The circuit of Fig. 3 is such that the channel between each input terminal 130 and 230 and the corresponding output terminals 190 and 290 is closed if between two successive pulses in the channel more than one pulse is applied to the input of the other channel, that is, if the frequency of the pulses in the other channel is the greater. Further, the occurrence of a pulse in the lower frequency channel causes the next pulse in the higher frequency channel to be blocked so that the number of pulses appearing at the output of the higher frequency channel in a given time is equal to the difference in the numbers of pulses appearing at the inputs of the channels.
Patent GB-1026757-A (GB)
Title: Incinerator for wire scrap
IPC: F23G5/40
Filed: 1963-01-21
Abstract: <PICT:1026757/C6-C7/1> Insulation and other organic material is burnt from metal scrap by piling the scrap loosely, if necessary on rails B, adding fuel to the pile and igniting it, and covering the pile with an uninsulated bell 12 to form an air cooled combustion chamber, and burning the fumes given off in a refractory lined chimney 14 with additional air and fuel from a burner 32.  The burning of the fumes is completed in refractory checker work just below the outlet 22 from the chimney.
Patent GB-579758-A (GB)
Title: Improvements relating to fluid duct intakes
IPC: G01M9/02
Filed: 1945-02-01
Abstract: 579,758. Duct intakes for fluid flow diffuser systems. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and SMITH, A. G. Feb. 1, 1945, No. 2608. [Class 4] Interference between the shock wave and the boundary layer of a surface extending upstream of an air inlet operating under supersonic velocity conditions is prevented by providing a forwardly facing boundary layer bleed aperture in the region of the inlet. Fig. 1 shows the front of the fuselage of an aircraft intended for supersonic flight, the pilot's, nacelle 4 being surrounded by an annular intake 3 through which air is supplied to the engine. The bleed aperture 3a is formed by an annular duct 5 whose leading edge is in the plane of the entry 3, and which communicates with a low-pressure region 8 through passages 6. The invention is shown in Fig. 4 applied to a wind tunnel with a supersonic working section 11 and subsonic diffuser section 12. At the entry to the diffuser section the ducting is divided to form the forwardly facing bleed aperture 3a, which communicates by a passage. 6 with a small air compressor 15 by which the air flowing through the aperture is returned to circuit through a passage 16 and downstream-facing aperture 17.
Patent GB-489632-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23D11/10
Filed: 1937-01-29
Abstract: 489,632. Liquid-fuel burners. ENTREPRISE GENERALE DE CHAUFFAGE INDUSTRIEL PILLARD FRERES & CIE. Jan. 29, 1937, No. 2611. Convention date, Feb. 8., 1936. [Class 75 (i)] Liquid fuel and a light fluid such as steam or air are supplied through tangential passages M, A, Fig. 2, arranged at right-angles to one another to a whirling chamber C provided with a spraying orifice. Combustion is controlled by varying the pressure difference between the liquid fuel and steam or air. Fig. 3 shows a burner in which light fluid and fuel are supplied to the whirling chamber C through tangential ports communicating with annular passages A, M<1>, and liquid fuel is supplied to retard the rotation in the whirling chamber through inclined passages P communicating with a chamber C<1> having a supply passage M2. The Specification as open to inspection under Sect. 91 describes arrangements of valves for controlling the supply pressures of the fuel and light fluid. This subject-matter does not appear in the Specification as accepted.