baber/WOPTO huggingface dataset:
Patent GB-1090821-A (GB)
Title: Water soluble phenolic ester condensates
IPC: C08G63/48
Filed: 1964-11-25
Abstract: Condensates of an ethylenically unsaturated dicarboxylic acid and an unsaturated monocaboxylic fatty acid diester of a dihydric phenol having an acid value of 80-275 are used in the form of solution in aqueous ammonia or an aqueous amine as a protective coating composition.  The unsaturated monocarboxylic fatty acid contains 10-24 carbon atoms per molecule and the dihydric phenol may be a hydroxy-terminated diester of a diphenol and a saturated aliphatic dicarboxylic acid.  The films prepared from the solutions of the condensates are cured by heating.  Driers, e.g. cobalt and manganese naphthenates may be added to the solutions.ALSO:The invention comprises condensates of an ethylenically unsaturated dicarboxylic acid and an unsaturated monocarboxylic fatty acid diester of a dihydric phenol, the condensate being soluble in aqueous ammonia or amine solution, the unsaturated fatty acid of the diester containing 10-24 carbon atoms and the molar ratio of dicarboxylic acid to diester being sufficient to impart an acid value of 80-275 to the condensate.  Suitable unsaturated dicarboxylic acids are, for example, maleic acid, fumaric acid and itaconic acid and suitable unsaturated monocarboxylic acids include those derived from drying or semi-drying oils, e.g. linseed oil fatty acid and dehydrated castor oil fatty oil as well as oils derived from other sources, e.g. oleic, palmitoleic, erucic, linoleic, linolenic, licanic, myristoleic, eleostearic, arachidonic and clupanodonic acids. The phenol may be, for example, bisphenol or resorcinol or may be a hydroxy-terminated diester of a diphenol and a saturated aliphatic dicarboxylic acid, e.g. succinic acid, glutaric acid, pimelic acid, adipic acid, subaric acid, azelaic acid and sebacic acid.  The condensates are prepared by heating the unsaturated dicarboxylic acid or its anhydride with the diester in such a ratio as to give a product of acid value 80-275.
Patent GB-1437118-A (GB)
Title: Sound-absorbing concrete
IPC: C04B28/02
Filed: 1973-10-16
Abstract: 1437118 Sound absorbing concrete E TRUDS 16 Oct 1973 [25 Oct 1972] 48143/73 Heading C1H Sound absorbing concrete consists of a continuous phase of cement and water and a discontinuous phase of porous aggregate particles having greater strength than the continuous phase and in at least a peripheral zone of the particles there is deposited in the pores a material providing the aggregate with a greater inner absorbing effect against mechanical vibrations, a substantial portion of the outer surfaces of the particles being substantially free of the material. In an example is described the production of concrete from portland cement, water, pit gravel and tile particles impregnated with bitumen.
Patent GB-1280164-A (GB)
Title: Improvements in ratio-change and set-over mechanisms in bevel gear making machines
IPC: B23F9/10
Filed: 1969-10-01
Abstract: 1280164 Gear cutting GLEASON WORKS 1 Oct 1969 [1 Oct 1968] 48235/69 Heading B3K In a gear generating machine generally as described in Specification 1,280,162 and having drive and control means as described in Specification 1,280,163 a ratio-change mechanism is provided which comprises a cam 206 driven through gearing from the drive to the generating train, the cam being mounted on a bracket 211 adapted to be brought at predetermined times (i.e. during one direction of roll) into operative position by fluid pressure cylinder means 218, 220, in which position the cam 206 effects axial movement of the cradle drive worm 54. When the cylinder 220 is connected to exhaust (during the reverse roll) the cam 206 is maintained in light engagement with the cam follower 208 by a spring 228 against the action of fluid pressure cylinder and piston means 232, 234 and is thus ineffective to move the cradle drive worm axially. Abrupt rotational set-over of the cradle is effected at the end of each roll by fluid pressure cylinder and piston means 246, 248 which operate to displace the cradle driving worm 54 through a distance determined by adjustable stop means. An axial set-over mechanism is provided (Fig. 12) comprising an adjustably displaceable hydraulic piston 270 arranged to act on a roller 274 carried by a crank 276 connected to an eccentric member 278 which is connected to move the cradle along its axis. A hypoid offset set-over mechanism (Fig. 9) is also provided for moving the entire cradle housing 30 in a horizontal direction at right angles to the cradle axis. The mechanism comprises a stationary piston 298 and cylinder 300 the piston 298 being attached to a threaded shaft member 294 which is threadedly connected to a stationary nut member 290 mounted fixedly on the machine frame. A dial assembly 316 connected to the end of the threaded member 294 provides for adjustment of the cradle position, e.g. during initial set-up of the machine. In a method of cutting longitudinally curved tooth tapered gears the ratio of roll in one direction is determined by ratio of roll gears forming a part of the generating train and in the reverse direction is modified by actuation of the ratio change mechanism, while the three set-over mechanisms (rotational, axial and hypoid offset) are brought into operation at the instant of reversal of direction of roll.
Patent GB-1096496-A (GB)
Title: Improvements relating to the stabilization of halogenated hydrocarbons
IPC: C07C17/42
Filed: 1965-11-15
Abstract: Halogenated hydrocarbons are stabilized against degradation by adding a hydrazone of formula <FORM:1096496/C4-C5/1> wherein R and R1 which may be the same or different are alkyl groups of 1-3 carbon atoms. It is also an advantage to add in admixture with the above, at least one epoxide and at least one phenol.  Concentrations used are (1) 0.001-0.01% by weight with respect to the halogenated hydrocarbon of diakylhydrazone, (2) from 0.01-1% of epoxide, (3) 0.001-0.05% phenol.
Patent GB-1278088-A (GB)
Title: Apparatus for generating microwaves
IPC: H01L21/00
Filed: 1969-10-02
Abstract: 1278088 FM generators; AFC circuits MATSUSHITA ELECTRONICS CORP 2 Oct 1969 [4 Oct 1968] 48439/69 Headings H3A and H3R A microwave generator comprises a cavity resonator 1 having one end connected to a load and the other end coupled to a short-circuiting piston 6, a microwave generating solid-state diode 2 disposed within 1 and a variable reactance element 3 placed either within a distance of two wavelengths of the microwave generated if placed on the load side or between the diode 2 and the piston 6 and an arrangement e.g. D.C. source 5 for applying a control signal to element 3 for varying the frequency of the microwave output without varying the operating point of 2. The elements 2, 3 may be formed on a single substrate with a separation of # or # wavelengths. For effecting frequency correction, the element 3 is controlled by a signal derived from a frequency discriminator 8 and amplifier 9. Frequency modulation may be achieved by superposing a modulating signal from source 7 on the D.C. reactance control signal of element 3. The generating element 2 may be an IMPATT diode, Gunn diode, LSA diode or a tunnel diode. The element 3 may be a varactor, PN junction diode, a Schottky diode, MOS type diode or a point contact diode.
Patent GB-1042980-A (GB)
Title: Economic loading of power systems
IPC: H02J3/48
Filed: 1963-12-09
Abstract: 1,042,980. Automatic control systems for power stations operating in parallel. LEEDS & NORTHRUP CO. Dec. 9, 1963 [Dec. 17. 1962], No. 48569/63. Heading H2H. In a system for apportioning the load between a group of generating stations to produce power at the least cost comprises a first signal representative of the total required power generation of the group, a second signal derived from the first to represent approximately the incremental cost at that level, and a means responsive to the generating deficiency or surplus to modify the approximate cost to bring it nearer to the optimum value of cost. The system is stated to be simpler than one designed to produce an accurate value of incremental cost. Signals proportional to total generation 12 in an area and generation deficiency or surplus 14 are applied to a summing device 16, and by way of a recorder 17 to a function generator 18 which transforms the resultant signal by a predetermined law 19 to another signal representative of approximate incremental cost #. This signal is modified at 22 by another signal related to generation deficiency 14 through the control 25. The resultant of these signals increases or decreases the generation of power through lines 23, 24. In an alternative arrangement, Fig. 3 (not shown), the signal from 25 may vary the position of the ordinate on the curve 19 as represented by slider 28, moved by a motor M according to generation deficiency, on a linear or non linear potentiometer 18A responsive to the difference between signals for total generation 12 and generation deficiency 14. The modified value of # at slide 28 may be further modified through potentiometers 61-66 to take account of line losses, which further modified signals are sent to the respective generating stations 54-57 &c. to vary the station outputs. Other arrangements are described in the Specification.
Patent GB-1171508-A (GB)
Title: Improved Silencer Devices for Gas Turbine Jet Engines
Inventor: HOCH RENE GERARD
IPC: F02C7/045
Filed: 1967-10-27
Abstract: 1,171,508. Gas turbine engines. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Oct.27, 1967 [Oct. 28, 1966], No.49015/67. Heading F1G. [Also in Division F2] A silencer for reducing the noise produced by the compressor or fan of a gas turbine jet engine comprises a deformable elastic wall which, in the inoperative position, takes the normal form of the air intake of the engine, and can be deformed under the action of at least one inflatable body to adopt an operative position in order to create a sonic throat in the intake. Fig. 5 shows the wall of the air intake of a turbojet engine, comprising a rigid generally cylindrical wall 2 and an expansible elastic membrane 1 of generally cylindrical form which in the inoperative form lies flat against the wall 2. The membrane is deformed into the operative position shown by inflating toroidal tubes 5a, 5b, 5c. The resultant reduction of the air intake flow area creates a sonic throat in the intake which acts as a barrier to reduce the propagation in an upstream direction of noise originating in the compressor or fan of the engine. The tubes 5a, 5b, 5c which when uninflated are of semi-toroidal form and are located in recesses 6a, 6b, 6c, are inflated by means of compressed air which may be supplied from the compressor of the engine. Compressed air is also supplied to spaces 9a, 9b. The membrane 1 may be locally thickened at 14 to provide seatings for the tubes 5a, 5b, 5c. The tubes 5a, 5c, may be replaced by a single tube. To prevent the development of folds or other local distortions in the membrane 1, it may be prestressed peripherally by making its circumference, prior to assembly, less than that of the air intake, the membrane being kept to the cylindrical shape in the inoperative position either by subjecting it to axial tension or by producing a vacuum in the spaces 9a, 9b. Propagation of noise through the boundary layer in the air intake can be reduced by sucking off the boundary layer through slots in the air intake wall upstream of the membrane 1. The suction may be effected by a venturi energized by compressed air desired for the engine compressor or from the jet.
Patent GB-1063792-A (GB)
Title: Fish spawning device
Inventor: WILLINGER ALLAN HAROLD
IPC: A01K63/00
Filed: 1963-12-13
Abstract: 1,063,792. Fish culture. AQUARIUMS Inc. Dec. 13, 1963, No. 49454/63. Heading A1A. A fish spawning device comprises strands 16 of a material simulating natural spawning vegetation secured to the loops of twisted wires having ends 28 mounting floats 20. In an embodiment the wires are bent to form a loop which hangs down into the water. In another embodiment the floats are detached from the wires which then rest on the bottom of the tank.
Patent GB-1091338-A (GB)
Title: Improvements in or relating to non-explosive capacitors
IPC: H01G7/02
Filed: 1965-11-23
Abstract: 1,091,338. Capacitors. SIEMENS A.G. Nov. 23, 1965 [Nov. 26, 1964], No. 49797/65. Heading H1M. In a capacitor of the type shown, wherein unfolding of the corrugation 12 due to increase of pressure within the casing 13 leads to rupture of a tear-out protector (not shown), the end plate 11 is provided with recesses 10, whereby it is contour-locked to the casing wall. The wall may have distortions 9 to correspond to the recesses 10.
Patent GB-1451214-A (GB)
Title: Diazepine derivatives and process for their preparation
IPC: C07D487/04
Filed: 1973-10-26
Abstract: 1451214 Triazolobenzodiazepines CIBAGEIGY AG 26 Oct 1973 [28 Nov 1972] 49940/73 Heading C2C Compounds of the general formula (R 1 =H, C 1-3  alkyl; R 2,3 =H, C 1-6  alkyl, C 2-6  hydroxyalkyl, C 7-9  aralkyl or R 2+3 =alkyl groups linked in the #- or y-position directly or via O, NH, C 1-4  alkylimino or hydroxyalkylimino to form a divalent radical containing not more than ten carbon-atoms; rings A, B are optionally substituted by F, Cl, Br, CF 3 , NO 2 , C 1-6  alkyl or alkoxy), their 5-oxides and acid addition salts are prepared by (a) reacting the corresponding 1-formyl compound with R 2 R 3 NH in the presence of an alkali metal cyanide and a selective oxidizing agent, (b) reacting a derivative of the corresponding 1-carboxylic acid with R 2 R 3 NH, (c) partially hydrolysing the corresponding nitrile (R 2,3 =H) or (d) condensing a compound of the formula (X=SH, optionally activated alkoxy or alkylthio, NH 2 , mono- or disubstituted amino) with R 2 R 3 NCOCONHNH 2 , optionally followed by oxidation or salt formation. The aldehyde starting materials are prepared by oxidizing the corresponding hydroxymethyl compound, and may be converted to the nitriles by oxidation in the presence of ammonia. Dehydration of the amides also affords the nitriles. The above compounds are tranquillizers and anticonvulsants, and potentiate the action of anaesthetics. They may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1340235-A (GB)
Title: Silver halide photographic emulsions
IPC: B41M5/46
Filed: 1971-10-27
Abstract: 1340235 Photographic emulsions FUJI PHOTO FILM CO Ltd 27 Oct 1971 [27 Oct 1970] 50016/71 Heading G2C Photographic silver halide emulsion having silver halide particles having an average diameter not above 0À18Á or in which at least 95% of the particles have a diameter not greater than 0À2Á, sensitized with a dye of formula: (in which Z<SP>1</SP> completes a heterocyclic nucleus having 5 or 6 atoms in the heterocyclic ring containing the N atom shown; Z<SP>2</SP> completes a thiazoline, oxazole, benzoxazole, thiazole, selenazole, benzothiazole, benzoselenazole, naphthothiazole, naphthoselenazole or quinoline nucleus; R and R<SP>1</SP> are each alkyl, hydroxyalkyl, alkoxyalkyl, acetoxyalkyl, carboxyalkyl, sulphoalkyl, allyl or optionally substituted aralkyl; R<SP>2</SP> is alkyl, aralkyl, aryl or vinylmethyl; each L is = C(R<SP>3</SP>)-; R 3  is H, alkyl, alkoxyalkyl or optionally substituted aryl or any L may be joined to R or R<SP>1</SP> by a methylene chain; m is 0 or 1; p is 0 or 1; X is anion). The emulsions may be used to prepare holograms.
Patent GB-1320352-A (GB)
Title: Pyrotechnic compositions and methods of manufacturing such compositions
IPC: C06B27/00
Filed: 1970-10-21
Abstract: 1320352 Pyrotechnic composition FRANCE ARMED FROCES MINISTER OF 21 Oct 1970 [5 Nov 1969] 50045/70 Heading C1D A pyrotechnic composition for use in rocket tracers comprises a mixture of an illuminating substance having a strong emissive power in the infra-red zone, a fluorinated resin, and an element which will react with the resin to reduce the fluorine atoms. The reducing element may be present in an amount up to 20% in excess of that required for the reduction of the other components of the composition in air. Barium stearate may be added to regulate the burning time and to act as a lubricant, and a polyester resin may be included as a binder. The fluorinated resin may be powdered polytetrafluorethylene, polytrifluorochlorethylene, polyvinylidenefluoride, or tetrafluorethylene - hexafluoropropylene copolymer, or small pieces of elastomeric vinylidene fluoride - hexafluoropropylene copolymer. Suitable reducing elements are Mg, Zr, Al, Cr, and Si in powder form. Illuminating substances specified are oxides of Fe, Ni, Cu, or Hf, or these metals in elementary form. The mixture of ingredients may be moulded under pressure at normal or raised temperature.
Patent GB-1036051-A (GB)
Title: Microelectronic device
IPC: H03K17/60
Filed: 1964-12-11
Abstract: 1,036,051. Semi-conductor solid circuits. SPERRY RAND CORPORATION. Dec. 11, 1964 [Dec. 17, 1963], No. 50506/64. Heading H1K. In an integrated chopper circuit comprising a pair of transistors having common base and collector regions and separate emitter regions, the ohmic contact to the base region is provided with two apertures which register symmetrically with the two emitter regions. As shown, a silicon wafer 12 comprises an N-type layer epitaxially deposited on an N + -type substrate. The surface of the wafer is masked with silicon dioxide and a single rectangular base region is diffused-in to form collector junction 15. Two N-type emitter regions are then diffused into the base region to form emitter jtmetions 16 and 17. Apertures are etched in the oxide layer to expose the two emitter regions and the base region surrounding each of the emitter regions, and aluminium contacts 28, 29, 24 are deposited in the apertures. A tab 26 formed as part of base contact 24 overlies the oxide layer 31 and has an enlarged portion to which a lead 32 is compression bonded, the neck of the tab ensuring that the base current is symmetrically applied to both transistors. Slight errors in the positioning of the base and emitter contacts relative to the emitter regions affect both transistors equally so that the electrical symmetry of the circuit is not disturbed. The circuit may also be constructed with the emitter and collector regions interchanged.
Patent GB-1075390-A (GB)
Title: Apparatus for and method of scalding fowl at multiple temperatures
Inventor: BROWN GEORGE WILLIAM
IPC: A22C21/04
Filed: 1965-11-29
Abstract: 1,075,390. Scalding poultry. GAINESVILLE MACHINE CO. Inc. Nov. 29, 1965, No. 50527/65. Heading A2U. In scalding poultry the poultry F is conveyed through cabinet C in which the breast portion of the poultry is sprayed directly with water at one temperature by nozzles 28 on pipe section 25 and the other portions with water at a different, higher, temperature by nozzles 28 on pipe sections 22, 23, 24. The hot water sprayed on the other portions flows on to the breast portion and mixes with the cooler water sprayed directly on the breast such that the breast portion is treated with water at a temperature which will not cause the discolouration of the breast during the subsequent plucking process. The water drops from the poultry into a tank below the cabinet C, where it is heated by thermostatically controlled heater 35 and is pumped by electrically operated pump 36 directly to pipe sections 22, 23, 24 and indirectly via valve 37 where it is mixed with cooler water, to pipe section 25. The level of water in the tank is maintained constant by the use of a float valve.
Patent GB-958213-A (GB)
Title: Improvements in or relating to apparatus for lasting footwear
Inventor: RALPHS GEORGE TREVOR
IPC: A43D23/00
Filed: 1959-07-01
Abstract: The subject-matter is all included in Specification 958,212 but the claims relate to the inflatable mould for gripping the shoe heel during lasting.
Patent GB-1502468-A (GB)
Title: Clutches for automotive vehicles
IPC: F16D13/72
Filed: 1975-12-16
Abstract: 1502468 Friction clutches CHRYSLER FRANCE 16 Dec 1975 [7 Jan 1975] 51490/75 Heading F2C To prevent leakage oil being sucked through a release bearing support tube 19 into a motor vehicle diaphragm spring clutch 10, the support tube 19 is provided with the number of orifices 34. The suction at the end 19a of the support tube, induced by rotation of the clutch component, draws air through the orifices 34 into the clutch. Oil leaking from a gear-box 22 past a seal 29 into a chamber 31 drains through an orifice 32 without being sucked into the tube 19. One of the orifices 34 is provided in the lower part of the tube 19 to drain oil therefrom.
Patent GB-1532820-A (GB)
Title: Suction tube for sucking a pulverized or granular plastics material
IPC: B65G53/42
Filed: 1976-12-10
Abstract: 1532820 Ejectors AB JOCHUMSEN 10 Dec 1976 [12 Dec 1975] 51676/76 Heading F1C An ejector in which granular plastics material is induced from a container through a pipe 1 by a flow of pressurized air through apertures 14 comprises a weight body, e.g. a ball 11, which is movable within an annular channel 10 by the pressurized air to vibrate the ejector and prevent the granular particles from sticking to each other so blocking the pipe.
Patent GB-1212539-A (GB)
Title: Electrogasdynamic precipitation
IPC: B05B5/03
Filed: 1967-11-14
Abstract: 1,212,539. Electro precipitators. GOURDINE SYSTEMS Inc. 14 Nov., 1967 [15 Nov., 1966], No. 51840/67. Heading B2J. An E.G.D. precipitator comprises spaced dielectric plates 130, Fig. 1, contoured to provide converging inlets 131 and diverging outlets 132. Flat conducting plates 132a extend upstream from the plates 130 and attract an ionizing discharge in cooperation with ionizing wires 133. Particles in the gas flowing through the apparatus are precipitated on to a collecting chamber surface 138 and descend under gravity through an exit between that chamber wall and a gas conduit 136. The mobility of particles can be controlled by injecting particles via nozzles 140 to form an aerosol. A conductor 142 supported by arms 143 has a tip 142a exposed to gas flow, so that the space charge downstream is increased but a minimum field gradient normal to the flow path is still maintained. In an alternative arrangement, two attractor electrodes are used with an adjustable potential divider for the E.H.T. supply, so that the ionizing field length is increased and the probability of charging of entrained particles is increased. A further embodiment employs a plurality of increasing-diameter collectors 160, 162, Fig. 3, which permit classification of particles due to changes of gas velocity through the collectors.
Patent GB-1165759-A (GB)
Title: Utilization of Sulfuric Acid in Alkylation
IPC: C07C2/62
Filed: 1966-11-23
Abstract: 1,165,759. Alkylation of isoparaffins. TEXACO DEVELOPMENT CORP. 23 Nov., 1966 [1 Dec., 1965], No. 52526/66. Heading C5E. A process for alkylating an isoparaffin (e.g. isobutane) with an olefin (e.g. isobutylene) in the presence of H 2 SO 4 , wherein the used H 2 SO 4  is contacted with an olefin (e.g. propylene) to form alkyl sulphates which are then returned to the alkylation, is improved by contacting the used H 2 SO 4 with a stoichiometric excess of olefin (on the basis of complete conversion of sulphuric acid to dialkyl sulphates) in an absorption zone, withdrawing from said zone an effluent hydrocarbon phase comprising unreacted olefin and an effluent acid phase comprising dialkyl sulphates and alkylation contaminants, passing at least part of said hydrocarbon phase to the alkylation reaction, separating dialkyl sulphates from said acid phase, and passing at least part of said dialkyl sulphates to the alkylation reaction. The absorption "zone" may comprise two absorbers, into the first of which gaseous olefin is fed, and into the second of which liquid olefin is fed. The separation of the hydrocarbon and acid phases leaving the absorption zone may be enhanced by injecting isobutane into the mixture, and separation of dialkyl sulphates from the acid phase may be achieved by extraction with isobutane in a tower. The extraction tower may have a reverse temperature gradient. Two flow sheets (not shown here) illustrate alternative process schemes.