baber/WOPTO huggingface dataset:
Patent GB-1028519-A (GB)
Title: Variable pitch hydraulic turbines, pumps and propellers
IPC: B64C11/40
Filed: 1964-04-15
Abstract: 1,028,519. Fluid-pressure servomoter systems. KARLSTADS MEKANISKA WERKSTAD A. B. April 15, 1964 [April 29, 1963], No. 15563/64. Heading G3P. [Also in Divisions B7 and F1] The runner blades 7 of a hydraulic turbine, pump or propeller are actuated by a servopiston 6 in the runner hub and connected by tubes 35, 36 to a valve element 14 which carries a position indicator 37 and is slidable in a valve element 15 itself formed with a servopiston 16 controlled by a valve 20. The lower, smaller-area, surface of the piston 16 is continuously subject to pressure oil supplied through a conduit 18 and the valve 20 controls the pressure above the piston, a floating lever followup member 25 being connected between the piston 16 and the valve 20 and being acted upon by an input cam 27. On movement of the piston 16 and valve element 15 the piston 6 moves until parts 33, 34 in the valve element 14 are brought into register with lands 31, 32 on the element 15.
Patent GB-927323-A (GB)
Title: Improvements in a.c. electrical rotating machines
IPC: H02K11/00
Filed: 1960-05-03
Abstract: 927,323. Dynamo-electric machines having planar air-gaps and printed circuits; transformers. SOC. D'ELECTRONIQUE ET D'- AUTOMATISME. May 3, 1960 [May 4, 1959], No. 15584/60. Classes 35 and 38 (2). In an A.C. electrical rotating machine of the flat annular airgap type having discoidal stator and rotor members, one of which includes a printed circuit winding 2 constructed of flat conductors secured to the faces of a thin insulating carrier member 9, the winding is supplied with low voltage A.C. by the output of a step-down transformer whose secondary winding 18 is also constructed of flat conductors secured to the carrier member 9. As shown, the machine is a single-phase asychronous motor whose rotor 3 comprises a magnetic plate 14 in depressions of which is a squirrel cage conductive coating 13, and whose stator comprises a ferrite magnetic base-plate 1 carrying the series wave wound printed winding 2 which is integral with the spiral secondary winding 18 and their interconnections 20, 21. The transformer has a conventional primary winding 16 and a magnetic circuit comprising a U-shaped core 15 and the plate 1. In another embodiment the transformer core and primary winding are coaxial with the motor, and this embodiment may be modified by making the motor winding and transformer unit rotatable the primary winding 16 being through sliding contacts. In a further embodiment the machine and transformer have a three-phase construction. Specifications 874,394 and 888,515 are referred to.
Patent GB-1437831-A (GB)
Title: Dispenser for foldable sheet material or for foldable articles  capable of being dispensed in flat sheet form
IPC: A47F1/08
Filed: 1973-03-31
Abstract: 1437831 Dispensing articles QUINTONIA FORM CUTTING Ltd 25 June 1974 [31 March 1973] 15602/73 Heading A4T [Also in Division B8] A dispenser for foldable sheet-like articles, e.g. plastics aprons, comprises a foldable insert 4, e.g. a card, for supporting the articles, and a casing 21, Fig. 7, for containing the articles in folded condition each with an end portion available for withdrawal, the insert 4 comprising two panels 7, 8 for locating and guiding the articles within the dispenser. A stack 11 of aprons, each folded double, may be attached to a card 26 by stapled pull-away portions 15, and the card may be suspended on hooks 24, Fig. 7, of a back panel 22 of the casing 21. The stack 11 is inserted behind a bar 32, with flaps 10 folded over it, and on pivoting a casing member 20 upwardly, the stack 11 is folded with the insert 4, which bends at fold lines 5, 6. The stack 11 may then be folded over the top edge of the member 20 and located between the member 20 and the casing 21, Fig. 9, a hinged flap 38 allowing access to the articles to enable them to be pulled away in turn. With an alternative insert (4 '), Fig. 4 (not shown), the articles may be stapled to the opposite face of the panel (8), and the flaps 10 may be replaced by narrower flaps (17). The position at which stapling is effected may be adjusted in accordance with the length of the articles to be handled.
Patent GB-1213497-A (GB)
Title: Liquid fuelled rocket propulsion unit
IPC: F02K9/48
Filed: 1968-04-01
Abstract: 1,213,497. Jet propulsion plant. MESSERSCHMITT BOLKOW BLOHN. G. m. b. H. April, 1, 1968. [April, 5, 1967], No.15605/68. Heading F1J. A liquid fuelled rocket propulsion unit comprises the combination of at least one main unit 1 having a combustion chamber 4 and propulsion nozzle 5 and at least one auxiliary unit 2 or 3 having in flow series a preliminary combustion chamber 6, one or more turbines 7, 8, a further combustion chamber 9 and a propulsion nozzle 10, the turbine(s) driving propellant pumps 11 to 14 of the auxiliary and main propulsion units. Turbine 7 may be single stage, as shown, or multi-stage and drives pumps 11,12 through a hollow shaft 15, whereas turbine 8 has stages 8a, 8b, 8c driving pumps 13, 14 via, a shaft 16 passing through shaft 15. Pump 11 supplies liquid oxygen from a tank 18 through lines 20, 21 to the preliminary and further combustion chambers 6, 9 respectively of each auxiliary propulsion unit 2,3. Pump 12 supplies liquid hydrogen fuel from tank 23 through line 24 to the preliminary combustion chamber 6 and to a reheat chamber 17 between stages 8a, 8b of turbine 8. A similar reheat . chamber may also be positioned between the stages of turbine 7 when this turbine is multi-staged. Pumps 13, 14 supply oxygen and hydrogen from the tanks 18, 23 respectively to the combustion chamber 4 of the main propulsion unit 1. Valves 29 are provided so that at starting or during low thrust running the output of pumps 13, 14 can be passed back to tanks 18, 23 through lines 30, main propulsion unit 1 not being brought into operation until higher thrust is required. The complete propulsion unit may be mounted in a spacecraft with the units 2, 3 on a common pitch circle around the main unit 1. The units 2,3 may be used for thrust vectoring.
Patent GB-423302-A (GB)
Title: Improvements in and relating to variable speed gearing
IPC: F16H3/44
Filed: 1933-05-30
Abstract: 423,302. Variable speed epicyclic gearing. PITZ, H., 10, Gneisenaustrasse, Saarbr³cken, Germany. May 30, 1933, No. 15615. [Class 80 (ii)] Variable-speed gearing of the kind in which a planet gear 12 drives a sun gear 13, and in which the planet gear is restrained by fluid means, is adapted to yield an overdrive. The planet gear 12 is fast on a shaft 11 adapted to drive a pump in a casing 10 rigidly secured to a frame 9 which is supported at its ends on cranks 7, 8 on parallel shafts 2, 6 which are connected by gearing 4 and driven by a motor 1. The frame 9 is thus caused to wabble round the driven shaft 14 so as to maintain the gears 12, 13 in mesh. The greater the resistance of the pump in the casing 10, the less the slip of the gear 12, and the greater the speed of the shaft 14. This pump draws oil through a cranked pipe 17 from a reservoir 15 and drives it through a cranked pipe 20. Some of the oil returns past a throttle valve 25 to the reservoir 15. An adjustable proportion of the oil is driven through an accumulator 26, which produces back-pressure, past a valve 27 to an hydraulic motor 29 by which means the energy absorbed by the planetary pump 10 is returned to one of the driving-shafts 6. A freewheel 32 allows the motor 29 to be shut off by the valve 27 without interfering with the drive. Exhaust oil from the motor 29 returns by a pipe 30 to the reservoir 15. When the pressure of the oil in the exhaust pipe 20 from the pump 10 builds up sufficiently, a piston is moved in a cylinder 37 which moves a lever 40 to engage a clutch 42 on the shaft 11 with the pump casing 10. The planet gear 12 is thus prevented from turning about its axis and as it is carried round the sun gear 13 drives the latter faster than the shaft 2 of the driving motor 1.
Patent GB-1147612-A (GB)
Title: Compositions for the treatment of peptic ulcers
IPC: C07C43/243
Filed: 1966-04-07
Abstract: 1,147,612. Coenzyme Q compositions. TAKEDA CHEMICAL INDUSTRIES Ltd. 7 April, 1966 [7 April, 1965; 4 Oct., 1965], No. 15622/]66. Heading A5B. Compositions for the treatment of peptic ulcers comprise coenzyme Qn of the formula: wherein n is an integer from 7 to 10 inclusive, together with a non-toxic, pharmaceutically acceptable solid carrier or containing, as its sole non-toxic, pharmaceutically acceptable liquid diluent or solubilising agent, distilled water (alone or together with benzyl alcohol, sodium chloride and a surface-active agent consisting of a mixture of hydrogenated castor oil and ethylene oxide or of polyoxyethylene sorbitan monooleate) or a vegetable oil. The compositions may be administered orally or parenterally in the form of tablets, powders, capsules, suspensions or emulsions.
Patent GB-820450-A (GB)
Title: Improvements in or relating to the low-pressure polymerisation of olefins and to catalysts suitable therefor
Inventor: STRAUSS HANS EDGAR
IPC: C08F4/64
Filed: 1956-05-18
Abstract: Ziegler catalysts for the polymerization of olefins by the Ziegler low pressure method are prepared by mixing two or more catalyst-forming components, such as titanium tetrachloride and aluminium diethyl monochloride or aluminium isobutyl, in an enclosure at less than 10 DEG  C. and retaining them therein until they attain the temperature of the enclosure.  They are preferably mixed in a purified, saturated hydrocarbon solvent of the same composition as the solvent used in the subsequent polymerization process. Polymerization may be carried out in the enclosure or the catalyst mixture plus the solvent, preferably 5% of the total quantity of solvent, can be added to rest of the solvent at, for example, 40 DEG C.  In examples, Al(C2H5)2Cl and TiCl4 were mixed in iso-octane at temperatures between -20 DEG  and +10 DEG  C. for 3 hours and ethylene was passed through the mixtures for 2-hour periods.  The range of impurities in the olefin or the solvent should be between 0.0001% and 0.03% by weight and preferably between 0.0001% and 0.01% for impurities such as acetylene, air, water vapour or other olefins not required in the polymerization process.  Specifications 799,392, 799,823, 801,031, (803,557 and 815,310, [both in Group IV (a)]) are referred to.ALSO:Low-pressure polymerization of olefins is effected in the presence of a Ziegler catalyst formed by mixing two or more components in an enclosure at less than 10 DEG  C. and retaining them therein until they attain the temperature of the enclosure.  They are preferably mixed in a purified saturated hydrocarbon solvent of the same composition as that used in the subsequent polymerization process.  Polymerization may be carried out in the enclosure.  In examples, aluminium diethyl monochloride and titanium tetrachloride were mixed in iso-octane at temperatures between -20 DEG  and +10 DEG C. for 3 hours and ethylene was passed in through the mixture for 2 hour periods.  The range of impurities in the olefins or the solvent should be between 0.0001% and 0.03% (by weight) and preferably between 0.0001% and 0.01% for impurities such as acetylene, air, water vapour or other olefins not required in the polymerization process.  Specifications 799,392, 799,823, 801,031, 803,557 and 815,310 are referred to.
Patent GB-490622-A (GB)
Title: Improvements in means for producing electrical oscillations of square wave form
IPC: H03K5/08
Filed: 1937-06-07
Abstract: 490,622. Valve circuits; converting. GENERAL ELECTRIC CO., Ltd., SKIPPER, T. C., and STEELE, A. June 7, 1937, No. 15734. Addition to 428,708. [Class 40 (v)] [Also in Group XXXV] The means for producing oscillations of square wave-form as described in the parent Specification, in which a second valve perfects the approximate square wave produced by the first, is modified for producing high-frequency oscillations by providing means for generating a component of grid bias for the first valve dependent on the input amplitude where. by the grid bias is constant and independent of grid current variations. At high frequencies as the input increases the grid-cathode capacity of the first valve 1 tends to increase the negative bias and this increase is balanced out by a positive biassing potential across the resistance 28 obtained by rectifying, in the bridge rectifier 22 ... 25, the voltage in the secondary 26 of the input transformer 5. Instead of using a grid bias battery for the second valve 11, the correct bias may be obtained from the flow of grid current through the condenser 31 and resistance 32.
Patent GB-268603-A (GB)
Title: Improved process and apparatus for sterilizing milk and other products in glass bottles or other containers
IPC: A23L3/14
Filed: 1926-06-23
Abstract: 268,603. Humbeeck, F. June 23, 1926. Sterilizing milk &c.-Milk &c. is sterilized in hermetically sealed crown-stoppered bottles or other containers by progressive heating by steam under pressure in a chamber 9 in which the bottles are kept in rotation about a horizontal or inclined axis 8. The bottles are then allowed to cool gradually in the open. In an example, the bottles, in baskets and inserted in compartments 5 in a polygonal drum 1 rotatably supported by a shaft 8 carried by brackets 10 having wheels 11. After wheeling the loaded drum 1 into the chamber 9, the shaft 8 is coupled ,for rotation, to a crank 13 on a driven shaft 8' extending through the wall of the chamber. Steam is introduced by a longitudinal pipe, having downwardly directed nozzles, submerged in water at the bottom of the chamber. Reference has been directed by the Comptroller to Specifcations 16355/98, 30048/13, 156,994 and 208,140.
Patent GB-240540-A (GB)
Title: Improvements in the valves and valve gear of internal combustion engines
IPC: F01L5/04
Filed: 1924-07-02
Abstract: 240,540. Lanchester, F. W. July 2, 1924. Valves; valve gear.-Separate piston valves d<1>, d<2>, controlling respectively exhaust ports e<1> and inlet ports e<2>, are actuated by rods g<1>, g<2> connected to a plate h driven by a crank or eccentric k and constrained by a link p mounted on a fixed pivot q.
Patent GB-1382668-A (GB)
Title: Detection of defective nuclear reactor fuel rods
IPC: G21C17/07
Filed: 1972-04-06
Abstract: 1382668 Fuel elements SIEMENS AG 6 April 1972 [7 April 1971] 16007/72 Heading G6C A fuel element, or a device for inclusion in a fuel element, comprises a container housing a quantity of non-gaseous material which, when it undergoes reaction with reactor coolant leaking into the element, fills a greater part of the container than is filled prior to the reaction but without distortion of the container, so that the occurrence of the leak can be detected from outside the element. In the embodiment shown the fuel rod casing 1 defines an internal chamber between the fuel 11 and an end plug 2; the chamber receives a capsule 3 having bores 31 in its wall and which encloses a pressed compact 4 constituted by a mixture of aluminium powder, a water soluble mercury compound and ferromagnetic material. Should moisture penetrate the casing 1 it reaches the compact 4 and the ensuing chemical reaction causes the compact to disintegrate to fill the capsule 3 (Fig. 1b thereby altering the spatial density of the ferromagnetic material; such alteration can be detected using magnetic means external of the fuel rod by, e.g. measuring magnetic reluctance. In another embodiment (Figs. 2a, 2b, not shown), the capsule 3 encloses a cup (32) filled with shavings or powder of a magnetic material. The cup is sealed with a lid (42) made as a pressing of aluminium powder and a mercury compound. In this instance it is possible, while the lid maintains its integrity, to cause the cup to move by application of a strong magnetic field-it may thus be raised and then allowed to fall whereupon the noise resulting is picked up by microphone. Following disintegration of the lid, however, and expansion of the lid constituents such movement is curtailed and the lack of noise production is an indication of fuel casing leakage. In a further embodiment (Figs. 3a, 3b, not shown) the capsule 3 encloses a body comprising an upper tablet (44) of solid ferromagnetic material supported on a lower tablet (43) of aluminium powder and a mercury compound. A space is provided above the body. Following expansion of the volume of the capsule contents as a result of the action of moisture on the lower tablet, the upper tablet occupies the previouslyfree space, a change which is detectable by magnetic or noise measurements. In general the capsule is of the canning material e.g. zirconium, stainless steel or a ceramic, and may assist in supporting the rod. A ceramic tablet may act as a thermal insulator between the capsule and fuel. A collecting chamber for fission-product gases may be provided. The mercury compound used may be organic or inorganic, e.g. mercury nitrate, iodide or aluminium amalgam. This compound catalyses the reaction between water and the aluminium powder. The rods are used in a watercooled reactor.
Patent GB-939948-A (GB)
Title: Improvements in or relating to systems comprising vapour-bubble pumps
IPC: F17C9/02
Filed: 1961-05-03
Abstract: 939,948. Raising liquids by heating in pipes. PHILIPS' GLOEILAMPENFABRIEKEN N.V. May 3, 1961 [May 6, 1960], No. 16032/61. Class 102(2). [Also in Group XIII] A system includes sections each comprising a heat exchanger connected to a vapour bubble pump. Each pump comprises a wider " downtake " duct or vessel such as 16 communicating with a narrower " uptake " duet such as 17 and has a heating element below the normal liquid level in the downtake duct, the heat producing vapour bubbles to lift the liquid in the uptake duct, and the heating elements are connected to switch means arranged so that the vapour bubble pumps can be operated independently. The pumps are arranged to replace valves or cocks, particularly for systems operating at low temperatures. As shown, liquid gas, e.g. liquid air, nitrogen, or methane, condensed in the chamber surrounding the cold head of a cold gas refrigerator 1 operating on the reversed hot gas engine principle, is passed via duct 12 to the vessel 16 which is common to two vapour-bubble pumps whose uptake ducts 17, 18 lead to heat exchanger 2, 3 respectively. An electric switch 27 controls heating elements 19, 20 whereby the liquid gas is conducted first to one heat exchanger, then to both together and finally to the other heat exchanger. The heat exchangers are arranged to separate out impurities such as carbon dioxide and water vapour in gas supplied to inputs 4 and 5 and may be constructed as described in Specifications 746,436, 781,891 and 885,482; the alternate switching of the two heat exchangers enables the impurities to be cleaned out of one while the other is operating. The purified gas is fed to the refrigerator via U-ducts 6, 7 whose turn-over points P Q are above the cold head, so that when only one of the vapour bubble pumps is operative cold stagnant vapour collects at P or Q causing a heat barrier to be formed; this avoids the need for a valve or cock in these ducts. In a modification, the purified gas is led away at outputs 8 and 9, the liquid gas from the refrigerator being fed back via the ducts 6, 7 so forming a closed loop.
Patent GB-998852-A (GB)
Title: Improvements in or relating to pyridine derivatives
Filed: 1962-04-26
Abstract: The invention comprises compounds of the general formula <FORM:0998852/C2/1> wherein R1 represents an alkyl group of 3 to 5 carbon atoms and the preparation thereof by oxidizing an appropriate thioamide with hydrogen peroxide in an inert organic or aqueous organic medium at below 50 DEG  C. and also the preparation of compounds wherein R1 represents a hydrogen atom or an alkyl group containing a maximum of five carbon atoms by oxidizing an appropriate isothionicotinamide with an inorganic per salt at between 10 DEG  and 40 DEG  C. in an inert organic or aqueous organic medium. Pharmaceutical compositions having tuberculostatic activity comprise the compounds of the invention together with a pharmaceutical carrier.  The compositions may be in the form of tablets, pills, dispersible powders, capsules, granules, emulsions, solutions, suspensions, syrups, elixirs or suppositories.  Reference has been directed by the Comptroller to Specifications 843,756 and 948,036.
Patent GB-560071-A (GB)
Title: Improvements in hydraulic engines
IPC: F01L15/00
Filed: 1942-11-13
Abstract: 560,071. Liquid - pressure engines. HOARE, S. W. Nov. 13, 1942, No. 16076. [Class 69 (ii)] In a double-acting liquid pressure engine of the kind in which a distributing valve 15 is reciprocated by a piston 22, a valve 28 controlling supply of pressure liquid to the latter is oscillated by tappets 33 &c. on a crankshaft 12 or other rotary part of the engine and is so formed as to be incapable of cutting off completely the flow of pressure liquid. The control valve comprises two discs 27 connected by a bridge member 28 having surfaces 29 narrower in width than the ports 30, 31 with which they co-operate, whereby at an intermediate position all the ports are in communica- 'tion. By this means a smooth reversal of the valve is effected. The engine may comprise two or more cylinders.
Patent GB-632093-A (GB)
Title: Improvements in or relating to the method of producing ceramic coating or refractory material
IPC: C04B33/13
Filed: 1947-06-18
Abstract: A ceramic glaze or bond for difficultly-wettable refractory or abrasive material consisting of graphite, silicon carbide, fused alumina, or mixtures thereof, is produced by fusing thereon a silicate melt capable of forming a ceramic coating and including an agent for reducing the surface tension of the melt, the agent being molybdenum, tungsten, uranium, vanadium, or their compounds. The coating may consist of a ferro-manganese-silicate glaze, to which is added a small amount of molybdenum, and the coating is applied by firing the article.  Alternatively, the agent may be in the form of the sodium or ammonium molybdate, tungstate, uranate or vanadate and may be applied by wetting the article with an aqueous solution thereof.  If the coating is in the nature of a borosilicate glass, the heated article can be plunged into a solution of borax containing in suspension additional borax and potter's flint, together with the agent.