baber/WOPTO huggingface dataset:
Patent GB-1116580-A (GB)
Title: Stator blade assemblies for axial-flow turbine engines
Inventor: GARDINER TERENCE EDWARD GOUVEN
IPC: F01D9/04
Filed: 1965-11-17
Abstract: 1,116,580. Compressor and turbine blades; axial flow compressors. BRISTOL SIDDELEY ENGINES Ltd. Nov. 15, 1966 [Nov. 17, 1965], No. 48898/65. Headings F1C and F1T. The stator blades 10 in a gas or steam turbine or in the axial flow compressor of a gas turbine engine are shaped so that the centroid line 22 of the working portion 19 of each blade diverges at a progressively increasing angle from a radial line 23 through the inner end of the centroid line. The curvature may be only in a plane perpendicular to the machine axis, as shown, or additionally in a plane containing the axis, Figs. 8 to 10 (not shown). In the latter case, the rotor blades are similarly curved. The construction reduces bending stresses on the stator blades and also reduces noise by reducing wake interaction. The stator blades are fixed to the outer casing 13 by engagement of roots 11 in an annular groove 15 and act at their inner ends as the sole support for a ring 14. In the case of a compressor, the blades may be moulded from an epoxy resin reinforced with layers of cloth woven from glass fibres, the blades being mounted by engagement of dovetail roots (26, 27), Figs. 4, 5 (not shown) in corresponding axial recesses in the casing (28) and inner ring (29).
Patent GB-1358556-A (GB)
Title: Power-driven harrows
IPC: A01B33/06
Filed: 1971-05-12
Abstract: 1358556 Agrictultural implements TEXAS INDUSTRIES Inc 12 May 1971 [13 May 1970] 48957/73 Divided out of 1358552 Headings A1B and A1P The subject matter is the same as that disclosed in Specification 1358552 but the claims relate to the coupling member to which further tools or implements can be connected in a quickly releasable manner.
Patent GB-1457501-A (GB)
Title: Method and apparatus  for forming the end of a galss tube
IPC: C03B23/09
Filed: 1972-10-25
Abstract: 1457501 Shaping glass tubes HEATHWAY MACHINERY CO Ltd 11 Dec 1973 [25 Oct 1972] 49135/72 Heading C1M A flange 3 is provided on the end of a glass tube 1 by making use of a plate 5 provided with a projection 7 adapted to enter the end of the glass tube. The tube is rotated and its end heat softened so that movement of the plate 5 into the tube forms a plastic ring around the tube end. The ring is shaped externally by cooled rollers 6.
Patent GB-1032799-A (GB)
Title: Apparatus for the electrical treatment of electrically conducting workpieces
IPC: B23H7/00
Filed: 1964-12-04
Abstract: An electrical machining apparatus is adapted for the selective use of electro-chemical machining and electro-erosive machining. In one embodiment, Fig. 1 (not shown), electro-chemical machining and electro-erosion are used in succession. During electro-chemical machining, the electrode tool 4 is fed towards the workpiece 3 by control means 5, the current is supplied from a D.C. generator 8 and electrolyte is supplied to the tool electrode by a pump from reservoir 9.  During electro-erosion, the feed is controlled by means 6, the working current is supplied from an impulse generator 7 and dielectric liquid is supplied from a reservoir to a tank 1 housing the electrode and workpiece.  In another embodiment, Fig. 2 (not shown) a common generator unit 7, 8 and feed control 5, 6 are used; the dielectric is ordinary tap water and the electrolyte is an aqueous solution.
Patent GB-1511699-A (GB)
Title: Ignition devices
IPC: F02P3/08
Filed: 1975-12-02
Abstract: 1511699 Ignition devices PLESSEY CO Ltd 1 Dec 1976 [2 Dec 1975] 49523/75 Heading F1B [Also in Division F4] A hand operated portable electric gas ignition device comprises an insulated housing 1 having a switch SW which actuates a transistor oscillator circuit T, R, and a rectifying means D for charging a capacitor C, the circuit being supplied by a battery, the capacitor discharging through the primary P2 of a transformer Tx2, the secondary circuit S2 of the latter including a spark gap SP, the switch including a push button 14, slidably mounted in the housing and adapted to engage with a moving wire contact 6, which makes wiping contact with a fixed contact 12, whose edge 13 is disposed obliquely to the direction of movement of button. The wire 2 of moving contact 6 is wrapped around a spigot 3, and is soldered to a printed circuit board 8, the battery terminals being shown at 10 and 11.
Patent GB-1217599-A (GB)
Title: Process for the manufacture of a product of polyurethane foam reinforced by fibres
Inventor: CARRIERE JEAN-PAUL
IPC: C08J9/02
Filed: 1968-10-18
Abstract: 1,217,599. Reinforced polyurethane foam. CENTRE INTERNATIONAL POUR L'ECONOMIE ET LA TECHNOLOGIE. 18 Oct., 1968, No. 49669/68. Headings C3C and C3R. Reinforced polyurethane foam is prepared by mixing together fibres, a polyester or polyether polyol, a polyisocyanate, borax, in a sufficient amount to permit the water needed for foaming to be liberated under the influence of heat, and an inert hygroscopic inorganic substance capable of fixing any water liberated by the borax dissolved in the reaction mixture until the temperature of the mixture is raised above the temperature at which the bulk of the water is liberated from the borax, and heating the mixture to a temperature between the temperature at which the bulk of the water is liberated from the borax and a temperature corresponding to the limit of stability of the polyurethane. Suitable inert hygroscopic substances are copper sulphate and sodium sulphate and are suitably used in the form of a fine powder mixed with the borax, also in powder form, before incorporation into the reaction mixture. Conventional additives e.g. stannous octoate as catalyst and silicone surface-active agents may be incorporated in the reaction mixture. Suitable fibres are those of glass, asbestos, polyamides, polyacrylonitrile, polyvinyl chloride, polyolefins, viscose, silk, wool or cotton. The fibres may be used in the form of "flocks" or webs.
Patent GB-1365790-A (GB)
Title: Radial bearing
IPC: F16C23/00
Filed: 1972-10-27
Abstract: 1365790 Bearings KRAFTWERK UNION AG 27 Oct 1972 [9 Nov 1971] 49767/72 Heading F2A A journal bearing has a lower portion 3 in contact with a bearing support 11 which has a hemispherical surface which engages a corresponding recess in a bearing block 13 to facilitate alignment of the bearing. Interposed between the bearing and bearing support may be an element 6 having a part cylindrical surface which engages a part cylindrical surface on the support. Shims 24, 25 may be provided between the bearing and the element. Fluid is supplied under pressure between the hemispherical surfaces and may be supplied from a source which supplies bearing fluid (Fig. 2, not shown). The arrangement may be such that the supply may be stopped when the rotation of the shaft is sufficient to maintain hydrodynamic lubrication. Supporting elements (23, 28, 29) may be provided at the top and sides of the bearing, which also have part cylindrical surfaces to enable alignment of the bearing.
Patent GB-1016147-A (GB)
Title: Improvements in and relating to fertilizers
Inventor: PARKER ALAN BUNYARD
IPC: C05C1/00
Filed: 1963-12-17
Abstract: 1-15% of an alkaline earth sulphate or carbonate is incorporated in a fertilizer composition comprising ammonium nitrate and potassium chloride and optionally ammonium phosphate to reduce or remove its slow cigar-burning properties.  The fertilizer composition has a composition defined by a graph (not shown) and is subject to cigar-burning at a rate of propogation of up to about 10 cm/hr. at temperatures of up to about 85 DEG  C.  The diluent may be anhydrite, gypsum, plaster of Paris, or calcium carbonate.
Patent GB-1195427-A (GB)
Title: beta-Carbamyl-beta-Hydroxyethylamines and their production
IPC: C07C233/16
Filed: 1967-11-03
Abstract: 1,195,427. # - Carbamyl - # - hydroxyethylamine derivatives. BADISCHE ANILIN- & SODA-FABRIK A.G. 3 Nov., 1967 [4 Nov., 1966], No. 49995/67. Heading C2C. [Also in Division C3] # - Carbamyl - # - hydroxyethylamine derivatives of the general formula wherein A denotes a #-carbamyl-#-hydroxyethyl radical of the general formula wherein R<SP>4</SP> denotes hydrogen or a methylol or alkoxymethyl group having up to six carbon atoms, R<SP>1</SP> denotes, when n is zero, a hydrogen atom or a hydroxyl or alkylol group or the radical -N(R<SP>2</SP>) 2  or the radical R 2 , or when n denotes an integer, the radical R 2 ; R<SP>2</SP> denotes the radical A, a hydrogen atom, an alkyl group, an alkylol group or an alkoxymethyl group having up to six carbon atoms, R 3  denotes an alkylene group having two to twelve carbon atoms and n denotes zero or an integer, the compounds containing at least two radicals A, may be obtained by reacting a glycidic amide of the formula with an amine of the general formula wherein at least one of the radicals R<SP>1</SP> and R<SP>2</SP> denotes a hydrogen atom. The reaction may be effected in an aqueous or alcoholic solution, with or without a solvent, at 30-80‹ C., and products containing N-methylol or N-methylol ether groups may have such groups introduced into the molecule subsequent to the above reaction by treating an intermediate derivative with formaldehyde or with formaldehyde and an alcohol. The products may be used as complexforming agents for heavy metal ions, e.g. Fe<SP>+</SP> <SP>+</SP> <SP>+</SP>.
Patent GB-1017313-A (GB)
Title: 2,3-dihydropyran from tetrahydrofurfuryl alcohol
IPC: C07D309/18
Filed: 1963-12-19
Abstract: 2,3-Dihydropyran is made by contacting tetrahydrofurfuryl alcohol in the vapour phase at 250-500 DEG  C. with a catalyst comprising a solid support and (i) 5-30% of an oxide of vanadium, based on combined weight of oxide and support or (ii) 2-30% of an oxide of molybdenum based on combined weight of oxide and support. The catalyst support is defined as the major component of a multicomponent catalyst which serves as a base for the dispersion or incorporation of the active components.  Specified supports are alumina and bauxite.  The reaction may be effected at super- or sub-atmospheric pressures, optionally in a continuous manner or in the presence of an inert gas, e.g. nitrogen.  Examples are provided.
Patent GB-1211357-A (GB)
Title: Composite light pattern apparatus
IPC: A61B5/00
Filed: 1967-11-06
Abstract: 1,211,357. Cathode-ray tube displays. MINNESOTA MINING & MFG. CO. 6 Nov., 1967 [7 Nov., 1966], No. 50385/67. Heading H4T. A graticule 17 (Figs. 1 and 3), against which the traces on the screen of a cathode-ray display tube 10 are compared, is formed as a pattern of fluorescent material 22 in a transparent support means 18 so that when the latter is irradiated by a suitable source 27 a visible graticule is produced. A filter 33 is interposed between the tube screen 16 and the graticule 17 to prevent activation of the latter by light from the screen and activation of the screen 16 by radiation from the source 27. The composite display of the traces and the graticule (Fig. 2) may be photographed by camera means 46, 47. The cathode-ray tube may be replaced by other beam producing means such as a proton-gun, a laser beam, an ion beam or an ultraviolet photon energy beam, the energy produced by which is converted into visible light by causing it to excite a sheet of fluorescent material in front of which the graticule and filter arrangement is positioned (Fig. 5, not shown). The apparatus provided by the invention can be used for recording bio-medical instrumentation data displays, such as electrocardiographic signals on the screens of one or more display tubes (Figs. 6 and 7, not shown).
Patent GB-1057687-A (GB)
Title: Improvements in and relating to methods of manufacturing semiconductor devices
Inventor: DONALDSON KENNETH JAMES STUART
IPC: H01L21/00
Filed: 1964-12-11
Abstract: 1,057,687. Bending a semi-conductor to a substrate. ASSOCIATED SEMICONDUCTOR MANUFACTURERS Ltd. Aug. 31, 1965 [Dec. 11, 1964], No. 50545/64. Heading H1K. A semi-conductor body is bonded to a substrate via an intermediate metallic layer using a laser, wherein the laser beam passes through the body on to the layer thereby welding the body to the substrate, the laser beam being of such a wavelength that absorption in the body is appreciably lower than in the layer. In a specific embodiment a phosphorus doped Si planar transistor is bonded to a gold-plated " Kovar " (Registered Trade Mark) header via a gold layer. The header has a glass-filled base and Fernico connecting wires for the electrodes. A Xenon laser may be used to heat the layer to at least 370 C. and thus form a Au/Si eutectic. In alternative embodiments the intermediate layer may be Au/Si or Au/Sn alloy whilst the support may be of Ni or nickel plated. After welding, the body may be encapsulated. A diode may also be mounted in a similar manner.
Patent GB-1510270-A (GB)
Title: Process for producing 2(1h)-quinazolinones or-thiones
IPC: C07D401/04
Filed: 1976-12-06
Abstract: 1510270 Process for producing 2(1H)-quinazolinones SUMITOMO CHEMICAL CO Ltd 6 Dec 1976 [11 Dec 1975] 50824/76 Heading C2C The invention comprises a process for preparing compounds of the Formula I wherein R 1  and R 2  are each independently hydrogen, halogen, alkyl, alkoxy, alkylthio, alkylsulphonyl, nitro, trifluoromethyl, C 2 -C 4 - alkanoyl, -CONR 4 R 5  or -NR 4 R 5 , in which B 4  and R 5  are each alkyl or taken together with the adjacent nitrogen atom form a morpholino or piperidino ring, or R 1  and R 2 , when on adjacent carbon atoms, and taken together, form methylenedioxy; R 3  is phenyl optionally monosubstituted by halogen, nitro, alkyl or alkoxy, pyridyl, furyl or thienyl; R is alkyl, C 2 -C 4 -alkenyl cycloalkyl, cycloalkylalkyl, aralkyl, alkoxyalkyl, haloalkyl, hydroxyalkyl or C 2-4 -alkanoyloxyalkyl; and X is oxygen or sulphur, where alkyl groups have 1 to 4 carbon atoms, and cycloalkyl groups have 3 to 8 carbon atoms, in which a compound II is heated with sulphur in an inert solvent. The compounds I are useful as anti-inflammatory analgesic and anti-viral agents.
Patent GB-1533655-A (GB)
Title: Liquid level detecting apparatus
IPC: G01F25/00
Filed: 1974-11-27
Abstract: 1533655 Liquid level indicators NU-WAY HEATING PLANTS Ltd 14 Jan 1976 [27 Nov 1974] 51279/74 Heading G1H A liquid level detecting apparatus comprises a float chamber 11 having a lower open end 12 and an upper end 13 connected by a pipe 14 to an upper level of a boiler 10, a float 16 in the chamber 11, means such as an electrical switch 18 to provide an indication when the float is at a predetermined position in the chamber, a valve 15 for closing-off the communication between the upper end 13 and the boiler, and means, controlled by a second valve 21, for varying the pressure of the gas above the liquid in the chamber 11 so that the liquid level in the chamber can be varied independently of that in the boiler to test operation of the float and switch. As shown an air pump can be connected at 20 to a conduit 19 and can be used, when the valve 21 is opened, to increase the gas pressure to simulate a low liquid level. In modifications, Fig. 3 and 4 (not shown) the valves 15 and 21 may be combined in a single changeover valve device (30) and the air pump replaced by a pump (40) for supplying steam from the boiler. A high liquid level can be simulated by using valve 21 to vent the float chamber or by using a pump to reduce the gas-pressure in the float chamber.
Patent GB-1461017-A (GB)
Title: Circuit for use in a gas turbine engine control system
IPC: F02C9/32
Filed: 1974-11-27
Abstract: 1461017 Ambient temperature compensation of engine temperature signal NISSAN MOTOR CO Ltd 27 Nov 1974 [28 Nov 1973] 51293/74 Heading G1N To compensate a first signal representing T 2s *, the optimum gas temperature in degrees absolute at an inlet of a compressor turbine of a gas turbine engine to account for the actual ambient temperature of the engine, the signal is amplified, in amplifier 30, by a factor of 273/Tsd where Tsd is a predetermined average ambient temperature of the engine of 288 degrees absolute, and the amplified signal is summed, in means 36, with a signal from amplifier 34 which amplifies the signal from sensor 32, measuring actual ambient temperature of the engine, by a factor T2sm/Tsd where T 2sm  is the arithmetic mean of the extreme values within a predetermined range of values of said optimum gas temperature T 2s * in degrees absolute.
Patent GB-1402069-A (GB)
Title: Process for the preparation of mixed partial esters of carbohydrates
IPC: C07H3/00
Filed: 1973-11-05
Abstract: 1402069 Polysaccharide partial ester KREMS CHEMIE GmbH 5 Nov 1973 [6 Nov 1972] 51318/73 Headings C3A and C3U [Also in Division C2] Mixed partial esters of the hydrolysis products of polysaccharides, e.g. from starch syrup, wood and other products from the cellulose industry are prepared by reaction of the hydrolysis product with an aliphatic acylation agent having up to 2 carbon atoms in the carbon chain until the resulting product has an acylation number of a maximum of one acyl group per monose unit, and then reacting the resulting reaction mixture with a fatty acid or anhydride thereof containing at least 6 carbon atoms in the chain, in the presence of an acid catalyst together with, where applicable, any remaining proportion of the aliphatic acylation agent which has not been used in the first stage. Preferred acylation agents are acetic acid and/or acetic anhydride and preferred fatty acids are lauric, palmitic, stearic, myristic, sacacid and/or coc-fatty acids.
Patent GB-1291461-A (GB)
Title: Improvements in or relating to rotary positive-displacement fluid-operated motors
IPC: F01C21/08
Filed: 1969-10-21
Abstract: 1291461 Rotary positive-displacement motors SPERRY RAND CORP 21 Oct 1969 [1 Nov 1968) 51505/69 Heading F1F In a reversible motor having a rotor 30 fixed to a shaft 36, radially-sliding vanes 86 are pressed against a substantially elliptic track 78 on a housing 14 by fluid-pressure in chambers 84 transmitted thereto through arcuate grooves 88 to 92, 96 to 104 and 108 to 120, which are formed in housing sections 16, 18 and connected to a pump 185 through spool-type valves 126, 128 lodged in the section 18 adjacent a shuttle valve 176. The valves 126, 128 regulate the pressures in the chambers so as to minimize friction between the vanes and the track and are of identical construction. The valve 126 has a spool 140 controlling inlet and outlet ports 134, 136 and a passageway 158 connecting a chamber 156 to the outlet port. The spool adopts a position wherein a restricted connection exists between the ports and fluidpressure in the chamber 156 is equal to that due to a spring 152 and fluid-pressure in a chamber 150, which is connected to an inlet port 44 for the working fluid of the motor. The spring renders the pressure at the port 136 greater than that at the port 44. For a similar reason the pressure at the outlet port 136A of the valve 128 is greater than that at an outlet port 56 for the working fluid of the motor. The valve 176 connects the small arcuate grooves to whichever of the ports 136, 136A is at the greatest pressure and thus makes provision for reversal of flow of the working fluid by mechanism 182. The ports 44, 56 are connected to opposite ends of working chambers 80, 82 through ports 52, 54, 68, 70 and 64, 66, 74, 76, respectively. Owing to the pressure intensification effected in each of the valves 126, 128 relative to the pressures at the ports 44, 56, appropriate pressure-differentials are produced between the radially inner and outer edges of the vanes so as to urge the vanes outwardly without undue force. Ports 138, 138A facilitate escape of leakage fluid.
Patent GB-1338496-A (GB)
Title: Apparatus for laying cord-like material in a rosette arrangement in a receptacle
IPC: B65H54/82
Filed: 1971-11-05
Abstract: 1338496 Winding FRISCH KABEL-UND VERSEILMASCHINENBAU GmbH 5 Nov 1971 [27 Nov 1970] 51556/71 Heading B3E [Also in Division D1] A wire or cord 6 is coiled in a barrel 18 by winding the wire or cord on a drum 7 with a rotating arm 10, preferably having a roller 27; forcing the wound turns off the drum with a rotating plough 12; and passing the wire or cord between two rollers 15, 16, at least one of which is driven at a peripheral speed higher than the speed at which the wire or cord passes through the apparatus, the rollers 15, 16, rotating eccentrically about the axis of the drum 7. The rollers 15, 16 are urged together by a spring 17 and are mounted on a carrier 21 which is pivotally mounted on the arm 10 via arms 24-26. The carrier 21 is supported on a rotating disc 19 by a roller 22 and is rotated eccentrically about the axis of the drum 7 by means of a roller 23 following a circular channel 20 in the disc 19.
Patent GB-1148023-A (GB)
Title: Coated paper
IPC: D21H19/40
Filed: 1967-11-14
Abstract: 1,148,023. Starch phosphates. SCHOLTEN RESEARCH N.V. 14 Nov., 1967 [15 Nov., 1966], No. 51661/67. Heading C3U. [Also in Divisions B2 and C4] Depolymerized starch phosphate esters are prepared by heating starch, a phosphoruscontaining acid or a salt thereof and preferably also a water-soluble amine, amide, or ammonium salt, at 80-200 C. for 15 mins. to 24 hours. The phosphorus compound may be ortho- or a polyphosphoric acid or an acid or neutral alkali metal or ammonium salt thereof. The nitrogen compound, if used, is preferably urea; alternatively thiourea, methyl-, methylol- or acetyl urea, cyanamide, dicyandiamide, formamide, acrylamide, triethanolamine, ammonium carbonate or an ammonium salt of an organic acid may be used. The starch may be modified or unmodified, and may be a flour. Esterification and depolymerization take place conjointly, and may be effected under vacuum and/or absence of oxygen, optionally in the presence of HCl or H 2 SO 4 , to give predominantly the monoesters in a product with a viscosity in 15% aqueous solution at 25 C. of <800 centipoises, measured in a rotational viscosimeter at a shear rate of 480 sec<SP>-1</SP>. Example 1 employs tapioca starch heated with H 3 PO 4  and urea at 126 C. for 45 mins.; Example 2 potato starch, polyphosphoric acid and urea at 124 C. for 35 mins; Example 3 corn starch and H 3 PO 4  partially neutralized with NaOH at 150 C. for 40 mins.
Patent GB-1162527-A (GB)
Title: Oxidation of Olefinic Compounds.
IPC: B01J27/053
Filed: 1966-11-18
Abstract: 1,162,527. Oxidation of olefines. CINCINNATI MILLING MACHINE CO. 18 Nov., 1966 [23 Nov., 1965; 20 Oct., 1966], No. 51727/66. Heading C2C. Production of aldehydes or ketones by intimately contacting an olefinic compound with less than an equimolecular amount of an aqueous acidic thallium (III) salt solution and recovering the resultant aldehyde or ketone. Specified olefinic compounds include olefinic hydrocarbons, alicyclic olefines, aryl-substituted olefines, indene, dihydronaphthalenes, safrole (3,4 - dioxymethyleneallylbenzene), ), anethole (p - methoxyisoallylbenzene), p - methoxystyrene and m-chlorostyrene. Examples of suitable thallium salts, which have a solubility of at least 4 groups of salt per 100 gms. of solution in both their oxidation states are the sulphate, nitrate and fluoroborate. The process may be carried out batchwise or continuously at normal temperature by stirring the olefin with from 10 to 90% less than the equimolar amount of the acidic aqueous thallium salt solution, extracting the aqueous phase with fresh olefinic compound, isolating the desired product in conventional manner and, if desired, recycling the recovered olefine to the oxidation step. The preparation of phenylacetaldehyde, benzyl methyl ketone, 2 - hexanone, formyl - cyclopentane, 2 - and 3 - hexanone, p - methoxyhydratropaldehyde, p - chlorophenyl - acetone and p - nitrophenyl - acetone from styrene, α- methylstyrene, 1 - hexene, cyclohexene, 2- hexene, anethol (p - methoxy - # - methylstyrene), p - chloro - α - methylstyrene and pnitro - α - methylstyrene respectively is described.