baber/WOPTO huggingface dataset:
Patent GB-1124479-A (GB)
Title: Improvements in separators
Inventor: EARLE ROGER TIEDEMAN
IPC: B04B1/04
Filed: 1966-10-31
Abstract: 1,124,479. Centrifugal separators. GENERAL ELECTRIC CO. 31 Oct., 1966 [23 Feb:, 1966], No. 48675/66. Heading B2P. [Also in Division F2] A centrifugal separator for removing entrained oil from a flow of air issuing from the lubrication system (see Division F2) for shaft bearings of an aircraft gas turbine comprises a rotatable shell 58, having diverging and converging conical portions 66, 68 at its inlet and outlet ends respectively, and a hub 60 defining with the shell an annular flow path inclined outwardly from the inlet end and inwardly towards the outlet end, the shell having blades 62 for tangentially accelerating the air-oil mixture introduced through its inlet and having apertures (72, 74), Fig. 3 (not shown) for the discharge of the oil separated from. the air by centrifugal force resulting from the tangential acceleration. The shell is surrounded by a housing 52 having inlet ports 53, for the introduction of the air-oil mixture, disposed radially outwardly of the shell inlet, and outlet ports 76, 78, 81 for the removal of oil discharged into the housing through the apertures in the shell 58. The hub 60 is coupled to a hollow shaft 54 rotatably supported in bearings 57 in the housing and driven from a gearbox 16. A conical baffle 55 directs the air-oil mixture towards the inlet of the shell 58. The leading edge b of each blade 62 is nearer the axis of rotation than the trailing edge e to compensate for acceleration losses as the airoil mixture flows through the separator so that the latter will act neither as a pump nor as resistance to flow. The ports 76, 78, 81 discharge the separated oil into a scroll chamber 80 from which it is returned to the lubrication system via a conduit 82. The air discharges to atmosphere through a tube 65 extending from the outlet portion 68 of the shell and through a port 69 of the housing 52.
Patent GB-1022438-A (GB)
Title: Buffs and methods of producing same
Inventor: HATCH ROY CHARLES
IPC: B24D13/06
Filed: 1964-12-02
Abstract: 1,022,438. Grinding. PERNIX Ltd. Feb. 2, 1965 [Dec. 2, 1964], No. 48979/64. Heading B3D. [Also in Division B5] A buff comprises a circumferential series of cloth strips or leaves 7 extending outwardly from a core 5 at least externally of plastics material and having a central longitudinal bore 6 to receive a driving spindle, the inner part of each of the strips or leaves having therein a row of holes 9 and being embedded in the core with the holes penetrated by the plastics material. The strips may be of abrasive cloth and may be assembled in sets each of which comprises six sheets formed by doubling over three doublesized sheets, the set then having the holes formed therein and being secured together by staples disposed a little outwardly of the holes. Separators may be interleaved with the strips stopping short of the holes and the strips may be arranged radially in a drum-like mould. A metal core having its bore plugged, or a former for the bore of the buff, is placed in the mould and resin, such as cold-setting or thermosetting resin, e.g. phenol-formaldehyde polyester, is poured into the mould about the core or former to permeate the inner parts of the strips and penetrate the holes. When the buff is removed from the mould, the separators are withdrawn from between the strips. For largesize buffs, wire may be threaded through the holes and be embedded in the plastics material. The strips may be arranged axially or helically of the buff.
Patent GB-1443719-A (GB)
Title: Pelmets
IPC: A47H2/00
Filed: 1973-10-22
Abstract: 1443719 Pelmets J H ZWAAN 22 Oct 1973 49070/73 Heading A4B A pelmet 1 comprises a horizontal top board 11 to the front edge of which is secured a depending front wall 6 in the form of a thin, flexible metal strip bent rearwardly at its opposite ends. The pelmet may comprise a plurality of sections 1A-1E secured together end to end by bolting through adjacent bent back ends, such as 19D, 19E. Ends of the front plate which lie adjacent a wall 4 may have bent back ends defining a curved, open bead. Textile cloth 15, 15D, 15F may be posted over the exposed face of the front plate.
Patent GB-1274918-A (GB)
Title: Hydrodesulfurization process using a guard chamber with the main reactor
IPC: B01J8/00
Filed: 1969-10-07
Abstract: 1,274,918. Hydrodesulphurization. GULF RESEARCH & DEVELOPMENT CO. 7 Oct. 1969 [25 Oct., 1968], No. 49103/69. Heading C5E. In a process for the hydrodesulphurization of crude or reduced crude oils as described in U.K. Specification 1,274,920 two or more swing guard reactors 56 and 57 are used before the reactor 60 and the relative amounts of catalyst in the main reactor and the guard chambers and the switching frequency of the guard chambers are determined by using the equations Y-X=n(αX); t=L/(n+1); and t=b+k(αX)<SP>m</SP> where: L is the desired life cycle of the catalyst; Y is the total weight of catalyst including that in the main reactor and the total of all the catalyst changes; X is the instantaneous weight of catalyst in the reaction zone including the main reactor plus one swing reactor; a is the fraction of catalyst in the reaction zone in the swing reactor; n is the number of times that the guard chambers are switched and (n + 1) is the total number of catalyst batches in the guard chamber system; b and k are constants of the reaction; m is 1 for hydrodesulphurization reactions; and t is the length of time that any particular batch of catalyst is in the swing reactor.
Patent GB-1498718-A (GB)
Title: Process for phosphating metal surfaces
IPC: B05D7/14
Filed: 1975-12-01
Abstract: 1498718 Producing phosphate coatings PYRENE CHEMICAL SERVICES Ltd 1 Dec 1975 [4 Dec 1974] 49209/75 Heading C7U A metal surface is (1) cleaned (2) treated with an aqueous colloidal suspension or solution of Ti phosphate (3) treated with an acidic solution containing metal and phosphate ions and a watersoluble organic polymer which is curable on heating and (4) dried and baked, without rinsing before drying, to form a phosphate coating comprising cured polymer. The metal may be Fe, steel, galvanised steel or Al, preferably degreased with alkali and water-rinsed, and optionally pickled with HCl or H 2 SO 4 . The Ti phosphate solution may contain 0À01-50 g/l and be used at 10-100‹C; the metal ions in the phosphating bath may be Zn, Ni, Co, Cr, Mn, Al, Ca or Mg; the bath may contain HNO 3 , nitrate, halide, e.g. HF or HBF 4 , oxidizing agents, e.g. HNO 2 , nitrate, H 2 O 2 , peroxides, ClO 3 <SP>-</SP>, or Ni or Cu as accelerator, suitable amounts of ingredients are: 0À1-50 g/l Zn, 1-500 g/l PO 4 , 0-50 g/l Ni, 0-50 g/l NO 3 <SP>-</SP>, and 0-50 g/lF. The polymer (0À01-50 g/l) may be a maleic acid or anhydride copolymer, e.g. polymethylvinyl ether/ maleic anhydride, polyethylene/maleic acid, or PVA/maleic acid, a polycarboxylic acid, e.g. polyacrylic or polymethacrylic acid, or polyvinyl pyrrolidone; the bath may also contain a surfactant; it is used at 10-100‹C and the coated body is baked at 50-300‹C for 0À5-30 sec; it may be conventionally post-treated with chromate, and an organic anti-corrosive agent.
Patent GB-1414233-A (GB)
Title: Sintering metal powders
IPC: C22C19/05
Filed: 1973-10-26
Abstract: 1414233 Vacuum sintering super alloy powders FEDERAL-MOGUL CORP 26 Oct 1973 [27 Oct 1972] 50044/73 Heading C7D Super alloy powder, especially Ni super alloys are vacuum sintered in two stages, (a) at a temperature e.g. 1600-2000F at which the primary carbides are converted to secondary or simplex carbides and (b) at a higher temperature below the incipient melting temperature e.g. 2100-2350F. The powder, preferably <425 microns, may be sintered as a powder in a mould or as a green compact at a vacuum < 1000 microns; the first temperature is held for 10-100 hours and the second temperature for 1-20 hours. The sintered article may be hot or cold coined or forged and heattreated. The specification lists many Ni super alloys e.g. INCONEL (Trade Mark), NIMONIC (Trade Mark) which may be vacuum sintered to produce improved U.T.S., Y.S. and %E.
Patent GB-1323949-A (GB)
Title: Continuous wave high frequency ignition system
IPC: F02P3/01
Filed: 1971-10-28
Abstract: 1323949 Ignition systems TEXACO DEVELOPMENT CORP 28 Oct 1971 [22 Dec 1970] 50106/71 Heading F1B A continuous wave high frequency ignition system comprises a unitary magnetic circuit type of oscillator 11 for providing high frequency ignition energy, engine timed current flow control means 52 for controlling operation of the oscillator, means associated with the current flow control means 45 for applying a magnetic bias to the magnetic circuit when the current flow control means is in one state and removing the bias when the current flow control means goes to the other state whereby to control starting of the oscillator and means (small capacity capacitor 56) for absorbing initial surge effects at the current flow control means when the bias is removed whereby the oscillator will start and continue oscillating while the current flow control means is in the other state. In addition there is provided a diode bridge 57 and associated larger capacitor 66. A large capacity capacitor 70 is connected to the centre tap of the primary winding 26. Specification 1322827 is referred to.
Patent GB-1505445-A (GB)
Title: Synthesis of urea
IPC: C07C239/00
Filed: 1976-12-01
Abstract: 1505445 Urea synthesis MITSUI TOATSU CHEMICALS Inc 1 Dec 1976 [5 Dec 1975] 50152/76 Heading C2C Urea is synthesized in a process comprising reacting carbon dioxide and ammonia to produce a urea-synthesis effluent, treating the ureasynthesis effluent in a plurality of pressure decomposition stages wherein the pressure is stepwise reduced thereby to decompose the ammonium carbamate therein into ammonia and carbon dioxide in each stage; separating a mixed gas of ammonia and carbon dioxide from the urea-synthesis effluent at each decomposition stage; contacting in turn the mixed gas separated in each decomposition stage with an absorbent under substantially the same pressure as the decomposition pressure in the stage concerned to absorb the mixed gas in the absorbent in stages; recycling the final resulting absorbate containing ammonium carbamate to the ureasynthesis zone; concentrating the aqueous urea solution discharged from the final decomposition stage and still containing a small amount of ammonium carbamate thereby to obtain a concentrated aqueous urea solution; condensing water vapour generated by the said concentration to obtain a condensate containing relatively small amounts of ammonia and carbon dioxide, and stripping the condensate to separate and recover the ammonia and carbon dioxide therefrom, and which includes absorbing the off-gas from a high-pressure decomposition stage in an absorbate in a high-pressure absorption zone, the absorbate being obtained by absorbing in an absorbent the off-gas from at least one medium-pressure decomposition stage, recovering the heat of absorption liberated by the absorption by an indirect heat exchange in the form of steam having a pressure of 2-4 kg./cm.<SP>2</SP>, contacting the steam with the condensate containing relatively small amounts of ammonia and carbon dioxide in a stripping zone to strip off substantially all of the ammonia and carbon dioxide from the condensate, and introducing the discharged steam containing the ammonia and carbon dioxide into the rectification zone of a low-pressure decomposition stage to directly heat the urea-synthesis effluent, thereby recovering the mixed gas separated from the urea-synthesis effluent in the lowpressure decomposition stage together with the ammonia and carbon dioxide contained in the steam.
Patent GB-1128362-A (GB)
Title: A method of moulding a decorated article
IPC: B29C43/20
Filed: 1965-11-26
Abstract: 1,128,362. Moulding decorated articles. MEPALSERVICE N.V. 26 Nov., 1965 [26 Nov., 1964], No. 50439/65. Heading B5A. A decorated article of synthetic resin, e.g. a saucer, is made by compression moulding a decorated tablet.
Patent GB-1084896-A (GB)
Title: Method and apparatus for producing steam
IPC: F22B1/18
Filed: 1965-11-29
Abstract: 1,084,896. Regulating waste heat boilers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 29. 1965 [Nov. 30, 1964],. No. 50590/65. Headings F4A and F4B. Waste gases from a furnace 1 used for heating a medium such as oil in pipes 2. flow out through duct 13 to waste heat boiler 14 having an auxiliary burner 35 and containing an economizer 15 evaporating sections 20, 25 and superheater 28. Feed pump 17 forces water through duct 16, economizer 15 and duct 18 to the steam-water separator 19, from whence circulating pump 22 forces it through duet 21 and the evaporating sections 20, 25, and duct 26 to the steam-water separator 19, the steam passing via duct 27 to superheater 28 and outlet duct 29. Increase or decrease in steam demand as measured by manometer 30 in line 29, is met by opening or closing valve 23, in duct 21 leading to the evaporating section 20, through the controller 31. This reduces or increases the hot water flow to air heater 32 in parallel with valve 23, disposed in the combustion air inlet duet 6 to the gas or oil fired furnace 1 so reducing or increasing the degree of air preheating and consequently the heat input to the furnace 1. The resultant drop or rise in the outlet temperature of the medium being heated as measured by element 9 causes controller 10 to actuate valve 8 in fuel supply line 7 to increase or decrease the fuel supply to furnace 1 to maintain the heated medium outlet temperature constant. The supply valve 8 may also be actuated by controller 12 under the influence of variations in the inlet combustion air temperature measured by element 11. The increase or decrease in the fuel supply causes an increase or decrease in the volume of waste gases passing to boiler 14, and so provides bigger or smaller heat imput to the boiler to meet the variation in steam demand. In modifications (Figs. 2 and 3, not shown) the valve controlling the hot water flow through the air heater is disposed in the line to the air heater, the return line from the air heater bypassing the evaporating sections.
Patent GB-1057017-A (GB)
IPC: C01D5/02
Filed: 1964-12-14
Abstract: In the production of chlorine dioxide in an operating zone and hydrated sodium sulphate in a crystallization zone, sodium or hydrogen chloride, sodium chlorate, water and liquid effluent from the generating zone are added to the crystallization zone, which is maintained at a sufficiently low temperature, e.g. -5 DEG  to -28 DEG C. for crystal formation, and the amount of water added is that amount at which all of the sodium to be removed from the system is precipitated as Na2SO4.10H2O and Na2SO4. 7H2O.  The liquid remaining after the recovery of Na2SO4 crystals is passed to the generating zone where sulphuric acid is added to generate ClO2 and Cl2, and water is removed.  Water is removed from the generating zone by withdrawing liquid, evaporating, and returning concentrated solution. The acid in the crystallization zone should be 1.5-4.6 N and that in the generating zone 4-6 M, which should remain substantially constant.  The acid added should be equivalent to substantially all of the sodium of the chlorate and chloride fed to the crystallizer. The added water may be employed to wash the hydrated sodium sulphate before addition. The process may be operated batch-wise or continuously and ClO2 and Cl2 may be recovered by dripping with inert gas, e.g. air.
Patent GB-1356584-A (GB)
Title: Centrifugal pumps
IPC: F04D15/00
Filed: 1970-10-27
Abstract: 1356584 Centrifugal pumps JOSEPH LUCAS (INDUSTRIES) Ltd 18 Oct 1971 [27 Oct 1970] 50877/70 Heading F1C A centrifugal pump comprises a valvecontrolled inlet 11 opening into the inner part of the annular pump chamber, a main outlet (not shown) opening into the outer part of the chamber, an impeller 14 comprising side plates 15, 16 and vanes 17, and a spiral groove 20 in the side plate 15 inclined at such an angle that liquid flows along the groove towards the impeller axis and is collected in an annular gutter 22 secured to the impeller. The gutter 22 is connected via a tube 23 with another annular gutter 24. The liquid is collected from the gutter 24 by a tubular scoop 25 connected to an auxiliary outlet 26. This arrangement assists in emptying the pump of liquid when the inlet 11 is closed. The gutters 22, 24 also collect liquid from the bearings 18, 19 flowing outwardly along the side plates 15, 16.
Patent GB-1088189-A (GB)
Title: Improvements in acyloxy silicon compounds and use thereof
IPC: C07F7/18
Filed: 1964-12-16
Abstract: The invention comprises organoacyloxydisilanes of the formula (R)n(Si)2(OAc)6-n, where R is an aryl or alkyl radical of 1 to 7 carbon atoms, Ac is a saturated aliphatic acyl radical and n is 1 to 3, and compositions curable to the solid, elastic state upon exposure to moisture which comprise (1) a compound of the above formula and (2) a liquid silanol chain-stopped diorganopolysiloxane in which the organo groups (R1) are monovalant hydrocarbon or halohydrocarbon radicals or cyanoalkyl radicals. The diorganopolysiloxanes have the formula HO(R12SiO)xH, where x is at least 10.  The organoacyloxydisilanes may be prepared by reacting an organohalodisilane (R)n(Si)2(X)6-n, where X is halogen, with an acid anhydride or an alkali metal salt of an acid having an Ac radical. When R is alkyl, the organochlorodisilanes are prepared by reacting the organic chloride and heated silicon in the presence of copper. When R is aryl, the organochlorodisilanes are prepared by reacting hexachlorodisilane with an aryl Grignard reagent in e.g. ether. The curable compositions are prepared by simple mixing and cured by exposure to moisture.  Suitable Ac groups are:  acetyl, propionyl, butyryl, hexoyl, 2-ethylhexoyl, octanoyl, isovaleryl, and stearyl. Suitable R groups are:  phenyl, tolyl, xylyl, and alkyl radicals containing from 1 to 7 carbon atoms.  Suitable R1 groups are:  alkyl, alkenyl, cycloaliphatic, aryl, aralkyl, halogenated monovalant hydrocarbon radicals, and cyanoalkyl.ALSO:Mixtures of certain polysiloxanes and organoacyloxydisilanes are coated on stainless steel plates and allowed to cure by standing at room temperature for 24 hours.  The mixtures used are (Ex. 2) a silanol chain-stopped dimethyl polysiloxane and 1,2-dimethyl tetraacetoxydisilane (Ex. 5) a copolymer of diphenylsiloxane units and dimethyl siloxane units, and ethylpentapropionoxy disilane, and (Ex. 6) a silanol chain-stopped dimethylpolysiloxane and phenylpentaacetoxydisilane.  In a comparative example, methyl tri-acetoxysilane is mixed with a silanol chain-stopped dimethylpolysiloxane, and the mixture coated on stainless steel and allowed to cure.
Patent GB-1001259-A (GB)
Title: Modified polymers and process for preparing the same
IPC: C08F8/00
Filed: 1962-04-04
Abstract: Water-insoluble, acid-soluble, film-forming modified polymers are prepared by esterifying polyvinyl alcohol with monochloracetic acid, etherifying the esterified product obtained with dihydropyrane and aminating the esterified and etherified product with a dialkylamine containing 1 to 4 carbon atoms in each alkyl radical. The esterification and etherification may be effected in the presence of a mineral acid, e.g. hydrochloric or sulphuric acid, and the amination in the presence of an organic solvent, e.g. methanol. Specified amines are diethylamine, dipropylamine and dibutylamine. In an example, polyvinyl alcohol is reacted with monochloracetic acid, and dihydropyane in the presence of hydrochloric acid, and with dipropylamine in the presence of methanol.  The modified polymers may be dissolved in organic solvents, e.g. acetone, methanol, ethanol, chloroform or ethyl acetate, and the compositions so obtained used for coating pharmaceutical tablets.  Such coating compositions may also comprise colouring matter, e.g. b -carotene and titanium dioxide, polyethylene glycols, sweetening agents such as cyclohexylsulphamic acid, and edible oils such as rape seed and castor oils.
Patent GB-1173802-A (GB)
Title: Quinazolinones
IPC: C07D239/91
Filed: 1967-11-10
Abstract: 1,173,802. Substituted quinazolinones; amides. SUMITOMO CHEMICAL CO. Ltd. 10 Nov., 1967 [15 Nov., 1966], No. 51368/67. Heading C2C. Novel quinazolinone derivatives of the general formula wherein R represents hydrogen or an alkyl group having at least 2 carbon atoms, R<SP>1</SP> represents an alkyl or haloalkyl group and each of R<SP>2</SP> and X represents a halogen atom, are prepared by reacting the compounds of the general formulµ wherein R, X, R<SP>1</SP> and R<SP>2</SP> have the above significance and Z represents a hydroxy or alkoxy group or a halogen atom. 2 - Formamido- and 2 - n - butyrylamido - 6- chloro - benzoic acids are prepared by reacting 2 - amino - 6 - chloro - benzoic acid with formic acid and n-butyryl chloride respectively. Pharmaceutical compositions having central nervous system depressive activities contain the above quinazolinone derivatives as the active ingredient. The compositions may be administered orally.
Patent GB-1172377-A (GB)
Title: Food Containers
Inventor: CEASE WILLIAM WALLACE
IPC: B65D43/02
Filed: 1966-11-16
Abstract: 1,172,377. Table articles. CEASE CENTRAL Inc. 16 Nov., 1966, No. 51406/66. Heading A4A. [Also in Division B8] The lid 18 of a multi-compartment tray 10 for prepared food prevents communication between the compartments and serves, when removed, as a serving plate. The walls of the tray extend above a marginal flange formed with a groove 15 into which the lid clips. Webs or projections 16 in the bases of the compartments separate the solid part of the food from the liquid. The tray may be of aluminium or plastics, and the lid of plastics or of china, glass or ceramic.
Patent GB-1151260-A (GB)
Title: Improvements in Reinforced Concrete Poles, Piles and like Elongated Structural Members
IPC: E04C3/34
Filed: 1967-11-13
Abstract: 1,151,260. Concrete posts. NIPPON CONCRETE KOGYO K.K. 13 Nov., 1967 [13 Sept., 1967], No. 51621/67. Headings E1B and E1H. A tubular reinforced' tapering concrete post or pile 10 comprises pre-tensioned cold drawn steel wires 1 arranged in a circle and anchored in annular end plates 9, (8) non- tensioned hot rolled steel wires 2-6 of different lengths arranged in the same circle, and a wire 7 spirally wound around the wires. 1-6, the whole cage being embedded in concrete centrifugally compacted. In a modification a second circle of pretensioned wires is spaced inwardly of the above circle, annular spacing elements having holes for all the wires to pass through being positioned along the post.
Patent GB-1588150-A (GB)
Title: Switching networks for use in telecommunications system
IPC: H04Q11/06
Filed: 1977-12-13
Abstract: To be able to expand switching arrangements step by step without requiring previous work during the basic configuration, a modular structure is desired. Such a structure is not easily possible in triangular matrices which, in contrast to square matrices need only one switching point even for connecting the same type of lines, that is to say e.g. row lines. The object of combining the characteristics of triangular matrices with the requirement for modular structure is achieved by individually allocating N-1 DIVIDED 2=3 switching point contacts (K1 to K21) to each of the N=7 connected lines (E/A1 to E/A7) which form one constructional unit (M1 to M7), the switching point contacts of the individual constructional units being used to connect, in the same fixed order, lines following in the order of the connected lines. <IMAGE>