baber/WOPTO huggingface dataset:
Patent GB-1119802-A (GB)
Title: Light-insensitive malt beverage and process of producing the same
IPC: C07C49/743
Filed: 1965-09-17
Abstract: Humulones are treated to render them photochemically non-reactive when present in a fermented malt beverage, by converting humulone to isohumulone, chemically reducing the isohumulone with an alkali metal dithionite and separating the reduced isohumulone from the reaction mixture. (The main component of the sunstruck odour in spoiled malt beverages is stated to be 3-methyl-2-butene-1 thiol).  According to a detailed embodiment, 40g hops containing 2.482g. humulone and 1.312 g. lupulone were ground in an electric meat grinder, the ground hop meal was extracted with 800 ml. petroleum ether for 2 hours and the extract so obtained was evaporated to dryness in vacuo using a rotary evaporator at water pump pressures. The viscous oil obtained was isomerized by refluxing in 500 ml. of 0.01N potassium carbonate for 30 minutes while the essential hop oils present io the extract were collected with an oil trap set below the reflux condenser. The reaction mixture was poured into 140g. of ice; the temperature of this mixture was 5 DEG C. its pH 10.5.  The cooled mixture was adjusted to pH 6.45 with 23 ml. of 6N hydrochloric acid and was extracted with petroleum ether, the organic extracts, containing lupulone, wax and chlorophyll, being discarded. The aqueous phase was then adjusted to a pH of 2.0 with 20.5 ml. of 6N hydrochloric acid and was again extracted with petroleum ether.  This latter extract was washed with saturated brine and dried by filtration through sodium sulphate.  The petroleum ether extract was evaporated to dryness in vacuo and the residue was taken up in a small amount of ethanol.  The residual petroleum ether was removed by azeotropic distillation with ethanol and the residue was taken up in 150 ml. 95% ethanol.  50 ml. of this isohumulone extract containing 800 mg isohumulone (0.00221 mole) was evaporated and taken up in 15 ml. of diethyl ether and then shaken with 770 mg (0.00442 mole) of sodium dithionite in 15 ml. of water for 10 minutes in a separatory funnel. The ether layer was washed with saturated brine and evaporated to dryness.  The reduced isohumulone residue was taken up in ethanol and adjusted to give a 50 ml. solution (73% of theoretical yield).  Other organic solvents mentioned in various contents are hexane methylene chloride and chloroform.  Solutions of sodium carbonate and sodium or potassium hydroxide may be employed instead of potassium carbonate solution for the isomerization of humulone.ALSO:Humulones are treated to render them photochemically non-reactive when present in a fermented malt beverage, by converting humulone to isohumulone, chemically reducing the isohumulone with an alkali metal dithionite and separating the reduced isohumulone from the reaction mixture.
Patent GB-1285464-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: BARKER ALLAN
IPC: G21C1/02
Filed: 1969-08-08
Abstract: 1285464 Reactors UNITED KINGDOM ATOMIC ENERGY AUTHORITY 23 July 1970 [8 Aug 1969] 39924/69 Heading G6C A reactor core formed from an array of fuel members and with at least inner and outer core zones has the fuel members constituting the inner zone longer and more widely spaced than those constituting the outer zone, the fissile content of the fuel and the fuel member crosssection being constant across the whole core, whereby the variation of power output across the core is reduced. This core configuration enables a high mean coolant outlet temperature to be achieved without the need for coolant flow variation across the core. A specific example is described, applied to a fast breeder reactor cooled by liquid metal.
Patent GB-1071109-A (GB)
Title: Aligned-grids electron discharge device and method and apparatus for manufacturing thereof
Inventor: MUNDAY JAMES CHAPMAN
IPC: H01J19/46
Filed: 1964-10-01
Abstract: 1,071,109. Thermionic valves. GENERAL ELECTRIC CO. Oct. 1, 1964 [Oct. 14, 1963], No. 40058/64. Heading H1D. Two or more grids, each comprising a plurality of lateral wires extending between parallel support rods 13, 14 are mounted and aligned in a discharge tube by positioning the support rods in apertures in a supporting plate 6, with corresponding lateral wires of the grids in alignment, and deforming the support rods adjacent the opposite surfaces of the supporting plate to form integral projections which secure the rods in position. As shown, the plate 6, Fig. 1, is arranged on a metal base 1 and rods 13, 14 are spring-urged downwardly into recesses 3, 4 in base 1. Rods 14 are moved longitudinally by adjustment of screws 5 until the wires of the two grids are aligned, after which the rods are deformed by means of a crimping tool, Figs. 2, 4 (not shown). The upper ends of the support rods and cathode 15 may extend freely through apertures in a second supporting plate which is spaced from plate 6 by an anode.
Patent GB-1079105-A (GB)
Title: Improvements in or relating to the manufacture of foamed polyurethanes
Inventor: LANGRISH JOHN
IPC: C08G18/48
Filed: 1964-10-02
Abstract: Foamed polyurethanes are produced by reacting an organic polyisocyanate with a polyether or mixture of polyethers containing 3 -OH groups per molecule and water in the presence of a low boiling liquid said polyether or mixture of polyethers having an OH value of 70-170 mg. KOH/g. and the amount of polyisocyanate being between 90 and 100% of that which is stoichiometrically equivalent to the polyether, water and any other active hydrogen containing materials present in the mixture and the low boiling liquid being used in sufficient amount to produce a foam requiring an indentation load not greater than 25 lbs. per 50 sq. inches to produce a 25% deflection. In an Example (1) tolylene diisocyanate was added to a mixture of oxypropylated hexane triol, stannous octoate, monofluorotrichloromethane, triethylene diamine, siloxane and water and the mixture allowed to foam in a mould.
Patent GB-1465591-A (GB)
Title: Electro-optical display device for an electronic timepiece
IPC: G02F1/055
Filed: 1974-09-16
Abstract: 1465591 Controlling light; electronic watches SOC SUISSE POUR L'INDUSTRIE HORLOGERE MANAGEMENT SERVICES SA 16 Sept 1974 [21 Sept 1973] 40204/74 Headings G2F and G3T [Also in Division G5] In an electronic timepiece a display device using ambient light L comprises a linear polarizer 29, a transparent ceramic plate 25 with fast and slow axes 9, 9, at 45 degrees to the preferred direction 30 of the polarizer, and a non-depolarizing specular or diffuse reflector 28, and a control and power supply circuit 31 in the timepiece selectively applies between electrodes 26 and 27 on the plate a signal voltage V to charge the birefringence of plate 25 by a quarter of a visible wavelength, thereby altering the colour or intensity of the reflected beam L 1 . As particularly described, the plate 25 of Fig. 4 is initially optically isotropic towards the beam L, it may be truly isotropic , or homotropic so that in the absence of an applied voltage all light is reflected, and in the presence of the voltage light of at least one visible wavelength is completely removed. Alternatively the plate may be converted from a <SP>#</SP>/ 4  to a <SP>#</SP>/ 2  plate by the voltage V. In a second embodiment, a modification of Fig. 6 (not shown), the plate is of electro and elasto-optic ceramic material and is subjected to a mechanical stress parallel to axis 9, so as to cause it to act as a <SP>#</SP>/ 4  plate. The voltage V causes it to act as a <SP>#</SP>/ 2  plate, so that the beam L, has different colours in both states. In either of the above embodiments a second ceramic plate identical to the first, but without electrodes, may be disposed between the first plate and the polarizer so as to compensate the initial birefringence of the first plate, which is then not necessarily zero or #/ 4 . The voltage V in each case may be applied transversely of the plate, as shown, or longitudinally via transparent electrodes. Each of the above embodiments not having a second plate may be modified by disposing a second polarizer between the reflector 28 and plate 25, parallel or crossed relative to the polarizer 29, the voltage V being such as to change the birefringence of the plate 25 by half a visible wavelength. The reflector is then not necessarily depolarizing. The polarizer 29 may act as the watch glass. A coloured filter, absorbing or interference, may be associated with polarizer 29 to remove the beam L 1  in one of the states of the display device.
Patent GB-1520366-A (GB)
Title: System for supplying paint to a spray gun
IPC: F01L25/06
Filed: 1976-09-29
Abstract: 1520366 Reciprocating pumps and motors CHAMPION SPARK PLUG CO 29 Sept 1976 [29 Oct 1975] 40379/76 Heading F1A An airless spray gun 10 is supplied with paint by a double-acting pump comprising a piston 14 reciprocated in a cylinder 13 by an hydraulic motor piston 24, driving liquid being supplied to the motor piston by a gear pump 55 via a check-valve 60, and increase of pressure above a predetermined level in motor supply line 61, e.g. due to closing of the spray gun valve, causing opening of an unloader valve 65 to by-pass the output from pump 55 to its inlet line 64, the unloading pressure being adjustable. The pressure in line 61 acts on a piston 70 via passage 77, and when the predetermined level is exceeded moves piston 70 to open valve 71 against a spring 75 which is adjustable by knob 76 to set the predetermined level. Valve 71 connects the space beneath valve 65 to low-pressure via passage 68 and 72 to permit the supply pump pressure in passage 62 to open unloader valve 65 against spring 66, the valve remaining open due to orifice 67 until valve 71 closes and the pressures above and beneath valve 65 equalize. Motor piston 24 incorporates a main reversing valve 30 actuated by a piston 33 controlled by a pilot valve 40 with stems 41, 42 which reverse the pilot valve at the end of each stroke to reverse valve 30. In the position of valve 30 shown, chamber A of the motor cylinder is connected to supply pump reservoir 57 via passages 35, 36, chamber C, passages 28, chamber C and return line 63, and supply pressure in chamber B moves piston 24 upwardly. On reversal of valve 30, chambers A and B are inter-connected and the layer surface area of the upper end of piston 24 causes the downstroke. Supply pump reservoir 57 has a filter 78, and a diaphragm 80 closing it from the atmosphere.
Patent GB-943015-A (GB)
Title: Improvements in or relating to apparatus for recording electric signals
IPC: G11B7/13
Filed: 1959-11-30
Abstract: A recording tape comprises a base layer and a coating of the thermoplastic material of thicknesses such that considerably more heat is required to raise the temperature of the base layer to the temperature at which the thermoplastic coating becomes softened than is required to heat the thermoplastic material to that temperature, the base material thus remaining cooler than the thermoplastic coating and acting as a heat sink for cooling the thermoplastic material.  A conducting layer may be sandwiched between the base layer and the thermoplastic coating.  Any one of the layers may be reflecting or they may all be transparent.  The base layer may be of polyethylene terephthalate, the conducting layer of cuprous iodide, and the thermoplastic coating of a blend of polystyrene, m-terephenyl and a copolymer of butadiene and styrene.
Patent GB-990535-A (GB)
Title: Improvements in or relating to air-cooled internal combustion engines
IPC: F01P1/02
Filed: 1962-10-29
Abstract: 990,535. Air-cooled I.C. engines. GES. FUR LINDE'S EISMASCHINEN A.G. Oct. 29, 1962 [Oct. 27,1961], No. 40742/62. Heading F1B. In an air-cooled I.C. engine enclosed within a cowling 5 having a longitudinal side wall 5b formed with the cooling air outlet 6 and in which ducting 7, 14, 15 is carried by the engine and disposed ambiently of the cylinders with ducting walls enclosing one side of the line of cylinders, the outlet is isolated from-the interior of the cowling extraneous of the ducting and part of the ducting walls 9 carries at least one of the induction and exhaust passages 10, 11. Cowling 5 is suspended from the vehicle chassis e.g. a tractor, and is formed with outlet 6 having louvres or a reticulated screen. Induction passage 10 and exhaust passage 11 are formed as a common cast part with the upper wall 9 of duct 7. Blower 4 directs air from within the cowling over fins 2 and 3 into duct 7 and through outlet 6 so that warmed air cannot be reintroduced through the blower.
Patent GB-1220634-A (GB)
Title: Dyestuffs of the perylene series and process for their production
Inventor: KALZ DIETMAR
IPC: C09B5/62
Filed: 1968-08-27
Abstract: 1,220,634. Colouring-polymers. FARBENFABRIKEN BAYER A.G. 27 Aug., 1968 [31 Aug., 1967; 10 Oct., 1967], No. 40878/68. Headings C3P and C3R. [Also in Division C4] Synthetic polymers and compositions thereof are coloured in red to violet shades by incorporating therein a pigment of formula wherein R is H or an optionally substituted alkyl, cycloalkyl, aralkyl or aryl group and R 1  is an optionally substituted alkyl, cycloalkyl, aralkyl or aryl group, none of the aforesaid groups being substituted by acidic watersolubilizing groups, or R 1  is an alkoxycarbonyl group or heterocyclic radical and the perylene nucleus may be substituted other than by acidic water-solubilizing groups (see Divisions C4-C5). In examples : (1) a red stoving lacquer is prepared comprising coconut oil alkyd resin, melamine resin, toluene, glycol monomethyl ether and the pigment of the above formula wherein R is H and R 1  is 4-sulphamyl-phenyl; (2) a composition comprising polyvinyl chloride diisooctyl phthalate, dibutyl tin mercaptide, TiO 2  and a pigment of the above formula wherein R is H and R 1  is 2-nitrophenyl is prepared.
Patent GB-1521099-A (GB)
Title: Semiconductor bistable data storage cells
IPC: G11C11/36
Filed: 1975-10-07
Abstract: 1521099 Transistor bi-stable stores INTERNATIONAL BUSINESS MACHINES CORP 7 Oct 1975 [11 Nov 1974] 40910/75 Heading H3T A monolithic storage cell comprises a double cathode (or double anode) SCR (or an equivalent structure) 20, Fig. 2, having the input bit and write select inputs connected to the two cathodes (or anodes) and an output transistor which senses whether or not the SCR is conducting on receipt of a read select signal. As shown the base of the output transistor 21 is so connected as to sense the voltage drop across the SCR anode load resistor, but alternatively, Fig. 3 (not shown), the load resistor may be omitted and the output transistor base is connected to the write select line. In further embodiments, Figs. 7 and 7A (not shown) the output transistor is connected in a series between the SCR and the output 14 with the read select line connected to its base to gate out the state of the SCR when required. The double cathode SCR may be provided bya PNP transistor cross-coupled to two NPN transistors Fig. 2B (not shown) or a double emitter NPN transistor Fig. 2C (not shown). In another embodiment, the double cathode SCR is provided by a single cathode SCR and an NPN transistor, Fig. 4. A double anode SCR may be provided by two PNP transistors cross-coupled to an NPN transistor.
Patent GB-896695-A (GB)
Title: Improvements in or relating to containers
IPC: B65D21/024
Filed: 1960-11-29
Abstract: 896,695. Portable containers. KAISER INDUSTRIES CORPORATION. Nov. 29, 1960 [Sept. 16, 1960], No. 41011/60. Class 66. A container is formed of two sections 1, 2 secured together at their open ends to form a closed body, each section having an integral bead 13, 13<SP>1</SP> which includes top and bottom walls 20, 22 and 20<SP>1</SP>, 22<SP>1</SP> thicker than the walls 5, 5<SP>1</SP> of the container and an outer wall 21, 21<SP>1</SP> twice as thick as the walls 5, 5<SP>1</SP>. The sections 1, 2 are held together by a hoop 30 formed as a split ring and having ears 32 apertured to receive a bolt, Fig. 5 (not shown), threaded at both ends. A gasket of resilient plastic or rubber may be fitted between the adjacent beads 13, 13<SP>1</SP>, Fig. 4 (not shown), to provide an airtight seal. The section 1 may have legs 45 and a discharge valve. Handles may be fitted to each section.
Patent GB-1198737-A (GB)
Title: Addendum Modified Involute Internal Gearing
Inventor: MOROZUMI MUNEHARU
IPC: F16H1/32
Filed: 1968-08-28
Abstract: 1,198,737. Toothed gearing. M. MOROZUMI. 28 Aug., 1968 [30 Aug., 1967; 30 May, 1968; 31 May, 1968 (2)], No. 41113/68. Heading F2Q. In an internal involute gear in which the number of teeth on the pinion and ring gear differ by 1 or 2 and in which the contact ratio is greater than 1, tooth interference is avoided by addendum modified gear cutting in which the relation between the pinion and ring gear addendum modification coefficients x 1 , x 2  satisfies the equation where α c  is the pressure angle, h k  the addendum coefficient, and K is 1 when the difference in the number of teeth is 1 or a function of α c  when the difference is 2. A reduction gear, Fig. 14, employing such teeth consists of an input shaft 1 with oppositely displaced crank portions 1<SP>1</SP>, 1<SP>11</SP> carrying planet pinions 2, 2<SP>1</SP> meshing with a stationary ring gear 3, the pinions being connected by an Oldham's coupling 7, while a second such coupling 6 connects pinion 2<SP>1</SP> with the output shaft 5. In a modified form, Figs. 16, 17 (not shown), the pinions and output are connected by pins (27) passing through pairs of circular openings (25) in the pinions.
Patent GB-1112101-A (GB)
Title: Fluid flow control valves
Inventor: LEE DENIS ERNEST
IPC: F16K1/40
Filed: 1964-10-09
Abstract: 1,112,101. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. 22 Nov., 1965 [9 Oct., 1964], No. 41238/64. Heading F2V. A check valve for use in a human heart comprises a ring 10 to be secured in an orifice and a resilient conical spiral 11, the convolutions of which are movable in response to fluid pressure. The cross-section of the strip forming the spiral 11 reduces uniformly from the end nearer the part 10 and the smaller end may carry a ball 12 to close the end of the coil. The parts may be formed of a synthetic resin or other non-toxic material having a density approximately the same as blood.
Patent GB-1089830-A (GB)
Title: Improvements in or relating to flat iron supports or rests
IPC: D06F81/00
Filed: 1966-09-13
Abstract: 1,089,830. Iron rests for ironing boards. J. R. CLARK CO. Sept. 13, 1966 [Dec. 29, 1965], No. 41319/66. Heading D1A. An iron-rest comprises a plate 17 to be attached to the downturned rim of an existing ironing board having pivotally secured thereto a holder 24, 27, 26, 29 which in operative position supports an iron in an upright position beside the board and which lies in a plane offset from the plane of plate 17 and is pivoted about a vertical axis from storage to operative position. The plate 17 has U-shaped channels 19, 20 secured to the rim 12 of the board by clamping screws 21. The support comprises a metal rod bent to a trapezoidal shape 24, 27, 26, 29 part 27 being bent downwardly and part 29 carrying small rollers 36. The end portions 30, 31 are bent upwardly at 32 so that their terminal portions 34, 35 can be spotwelded to the rib 44 of a washer 41 secured to plate 17. Washer 41 has an opening 42 to receive a depression 40 in plate 17 and is held in position by a cupped washer 45 secured by a nut 48 and bolt 47.
Patent GB-978291-A (GB)
Title: Sizing agents for paper-making and process for the production thereof
IPC: D21H17/34
Filed: 1960-12-02
Abstract: Sizing agents, especially sizing agents in emulsion form for paper-making, are made by forming the maleic anhydride addition product of petroleum resin, a polymerizate of unsaturated hydrocarbons of petroleum origin, adding a solid fatty acid, e.g. stearic acid, melting the mixture, saponifying the melt with alkali, e.g. potassium or sodium hydroxide, and dispersing the saponified product in water, the petroleum resin being used in an amount of 60-85%, the fatty acid in an amount of 15-30% and the maleic anhydride in an amount of 1-10%.  Wax, e.g. microcrystalline wax, may be added to the addition product in an amount of up to 25%.  In forming the addition product, free petroleum resin may be present. Part only of the molten mass may be saponified with alkali.ALSO:Sizing agents, especially sizing agents in emulsion form for paper-making, are made by forming the maleic anhydride addition product of petroleum resin, a polymerizate of unsaturated hydrocarbons of petroleum origin, adding a solid fatty acid, e.g. stearic acid, melting the mixture, saponifying the melt with alkali, e.g. potassium or sodium hydroxide, and dispersing the saponified product in water, the petroleum resin being used in an amount of 60-85%, the fatty acid in an amount of 15-30% and the maleic anhydride in an amount of 1-10%.  Wax, e.g. microcrystalline wax, may be added to the addition product in an amount of up to 25%.  In forming the addition product, free petroleum resin may be present. Part only of the molten mass may be saponified with alkali.
Patent GB-897410-A (GB)
Title: An improvements in or relating to agricultural baling devices
Inventor: OLD JOHN LESLIE
IPC: A01F15/10
Filed: 1958-12-27
Abstract: 897,410. Collapsible links. HARRISON, McGREGOR & GUEST Ltd. Dec. 16, 1959 [Dec. 27, 1958], No. 41793/58. Class 80 (3). [Also in Group XVII] The feed fork of a a baling-machine is provided with a collapsible strut 12 which comprises a bar 25 with an annular groove 26 which axially locates a ring of steel balls 27. A spring 28 surrounds a sleeve 29 and abuts against a plate 34 and a flange 30 which is thereby pressed against the steel balls 27, holding them against the conical bore of the nut 36. When the prongs 10 are overloaded, the spring 28 is compressed and the balls 27 are pushed out of the groove 26. The bar 25 then slides through the nut 36 and the sleeve member 29, moving the fork prongs into an inoperative position. Spring or manual means return the prongs 10 to the operative position. In another embodiment (Fig. 4, not shown) an extensible link may replace the collapsible link.
Patent GB-1405346-A (GB)
Title: Process for the conversion of sterols contained in vegetable  and animal oils and fats into their fatty acid esters
IPC: A23D7/01
Filed: 1973-09-05
Abstract: 1405346 Modifying fats and oils HARBURGER OELWERKE BRINCKMAN & MERGELL 5 Sept 1973 [5 Oct 1972] 41845/73 Heading C5C Tree sterols contained in animal or vegetable oil or fat, e.g. fish-, soya- or sunflower oil are converted into corresponding fatty acid esters by adding to the oil or fat 1À0 to 1À1 equivalents (based on the free sterol content) of a fatty acid ester of a C 1 -C 4  monohydric aliphatic alcohol wherein the fatty acid contains 2 to 26 carbon atoms, and transesterifying the mixture at elevated temperature in the presence of alkali metal or alkali metal alcoholate with simultaneous removal of the monohydric alcohol. The fatty acid ester is preferably the methyl ester of a fatty acid derived from the oil or fat itself. Sterol may be added to the oil or fat before treatment to provide a substantial content of sterol fatty acid ester in the product.
Patent GB-1457332-A (GB)
Title: Computer output printers
IPC: B41J7/92
Filed: 1974-09-26
Abstract: 1457332 Selective printing SPERRY RAND CORP 26 Sept 1974 [27 Sept 1973] 41919/74 Heading B6F In a printer the spacing between a carriage 28 carrying a chain of printing characters 18 and a printing medium 12 is determined by extending a probe 21, until it is fully extended, and then moving the carriage until it is placed relative to the probe 21 such that the desired print gap exists between the carriage 28 and the medium 12. As shown the carriage is moved by rotation of eccentric 22 and the probe by movement of arm 29. A bank of hammers 11 lies opposite the characters 18. In operation the carriage is first moved as far as possible from the medium 12, then the probe 21 is fully extended, then the carriage 28 is moved till it is in the desired position relative to the printing medium 12 and then the probe 21 is retracted.