baber/WOPTO huggingface dataset:
Patent GB-1496616-A (GB)
Title: Vehicle transmission controls
IPC: F16H63/34
Filed: 1976-04-14
Abstract: 1496616 Hydrostatic transmission control; linkwork INTERNATIONAL HARVESTER CO 14 April 1976 [23 June 1975] 15279/76 Headings F2W and F2K A hydrostatic transmission control linkage in a vehicle which prevents reverse movement of the vehicle in a high speed range comprises a valve spool 22 movable by a lever 10 through linkwork 14, 16, 20 to select forward, neutral or reverse, a lever 26 which pivots a link 42 to select a high speed range (position H) or a low speed range (position L) and a plate 46 pivoted by a rod 44 when lever 26 is moved, the link 20, connected to valve spool 22, having a projection 18 which abuts plate 46 to prevent engagement reverse when the vehicle is in a high speed range and also, when the vehicle is in reverse, prevents selection of the high speed range. The vehicle may be an industrial or agricultural tractor, a loader, a scraper or an earth mover.
Patent GB-555002-A (GB)
Title: Improvements in or relating to balancing hubs for airscrew blades
IPC: G01M1/04
Filed: 1941-11-27
Abstract: 555,002. Testing balance of air-screw blades. HILLS & SONS, Ltd., F., and SIMPSON, J. Nov. 27, 1941, Nos. 15287/41 and 12309/42. Drawings to Specification. [Class 106 (ii)] [Also in Group XX] The detailed description is the same as that of Figs. 1 to 6 of Specification 555,001, but the claims differ.
Patent GB-482086-A (GB)
Title: Improvements in or relating to low voltage, phase failure and phase reversal protective means
IPC: H02H3/46
Filed: 1937-06-02
Abstract: 482,086. Protective cut-out arrangements ; electromagnetic switches. IGRANIC ELECTRIC CO., Ltd. June 2, 1937, No. 15309. Convention date, June 8, 1936. [Class 38 (v)] A low voltage, phase failure, and phase reversal, protective system has the control winding of a relay connected in star connection with impedances in the polyphase circuit, and resistance is permanently in series with the relay winding to render the relay responsive to a decrease in line voltage when simultaneously the frequency decreases. The relay winding 2 is star-connected to the lines L1 .. L3 with impedances 3, 4, the former being preferably highly-inductive and the latter purely ohmic. Closure of hand-switch 6 causes 2 to close its contacts (provided voltage and phase conditions are normal), so energizing the coil 1a which closes switch 1 and also removes at contacts 1b a short-circuit from resistance 8. The resistance 7 is permanently in series with winding 2 and effects reduction of the relay flux on simultaneous decrease in voltage and frequency, in addition to affording protection against phase failure and reversal, and low voltage unaccompanied by drop in frequency. The Specification refers to equal voltage drops across the resistance 7 and winding 2. The relay, Fig. 2, has a balanced rotating armature 12 carrying a contact element or actuating element 13 and biassed by spring 14 to effect circuit-opening. This type of relay has a flat pull-characteristic, and the spring 14 is arranged so that its torque RS approximates to the magnetic torque R, Fig. 4. If the voltage decreases, the torque R is lowered to the value R1, so that, over the operating range a-b, it is overcome by the spring-torque and the relay opens. Considerable weight may be put into the balanced armature to make it shock-proof and slow to respond to pull-fluctuations, so causing the relay to operate on low frequencies. The resistance 7 may be replaced by two resistances respectively in the other starbranches and, if phase-reversal protection is not desired, impedances 3, 4 may comprise ohmic resistance.
Patent GB-1466324-A (GB)
Title: Vessel such as an electric frying pan
IPC: A47J37/10
Filed: 1974-04-08
Abstract: 1466324 Frying pans HOOVER Ltd 8 April 1974 [13 April 1973] 15406/74 Heading A4A A vessel such as an electric frying pan has an upstanding side wall 13, Fig. 1, defining an open top, a lid 16 capable of engagement with the top of the side wall in a closed position, Fig. 6 (not shown), and a support 23 carried by the lid for supporting it in an open position over-lying but spaced above the side wall, Fig. 1, the support including a bifurcated part 27, 28 to extend closely on each side of the side wall and a further part which is pivotally engaged with the lid and together with the bifurcated part can support the lid in said open position or can permit the lid to be moved to the closed position. The support, a generally U-shaped leg 23 of resilient wire has an axle portion 25 at the end of each of its side portions 24, Fig. 2, on to which the free ends 26 of portions 25 are doubled back, the portions 25 being received by openings (29), Fig. 4 (not shown) in the side walls 22 of a body 20 situated on the lid exterior below the handle 17. Ends 26 bear against respective adjacent body side walls 22, thus locating the lid in its open position. Alternatively ends 26 are received by pockets 30 formed in body side walls 22 to retain the lid in a position which is generally perpendicular to the upper edge of the side wall, Fig. 7 (not shown). Disengaging leg 23 from the pan with ends 26 being received in pockets 30, enables the lid to be disposed on the pan in a closed, covering relation (Fig. 6). The side portions 24 of the leg 23 each merge into a first loop portion 27 which overlies the interior of side wall 13, merging into a single integral second loop portion, 28 adapted to lie adjacent the side wall on its exterior. A metal sheathed electric resistance heating element 18 is mounted within lid 16, its terminal ends being received by a sleeve 19 on the lid, which also receives controller 14. The pan 10 may also include an electric heating element (not shown) to which electrical connections may be made by controller 14.
Patent GB-1476908-A (GB)
Title: Resistance compensation circuit
IPC: H03K17/06
Filed: 1975-04-15
Abstract: 1476908 Switching Circuits INTERNATIONAL STANDARD ELECTRIC CORP 15 April 1975 [22 April 1974] 15409/75 Heading H3T In an arrangement in which a resistance, e.g. that of an electronic switch, is compensated by the inclusion of a negative resistance in series with the switch and in which a current source is included in series with the two resistances, a further negative resistance is included in series with the other two resistances to compensate for the resistance of the current source. The negative resistances may comprise amplifiers with resistive feedback paths from their outputs to their respective inverting and non-inverting inputs, Fig. 3 (not shown).
Patent GB-822350-A (GB)
Title: Improvements in spring suspensions for vehicles
Inventor: DOUGHTY HERBERT OSBORNE
IPC: B60G11/42
Filed: 1956-05-17
Abstract: 822,350. Laminated springs. TASKERS OF ANDOVER (1932) Ltd. June 14, 1957 [May 17, 1956], No. 15433/56. Class 108(3) A laminated spring 7 is resiliently connected to a bracket 10 rigid with a vehicle frame, by means of a housing 1, split and flanged, and compressing rubber pads 4, 5, shaped to fit around the sides of the spring, by the action of clamping bolts 3, 3. The end of the spring engages a steel-faced rubber buffer 13 between which, and the end face of the housing, are disposed shims 13a.
Patent GB-718557-A (GB)
Title: Improvements in or relating to acrylonitrile copolymers
IPC: A41F5/00
Filed: 1952-06-19
Abstract: Acrylonitrile is copolymerized with a vinyl ether of an amino-alcohol of the general formula: <FORM:0718557/IV (a)/1> where n is an integer not greater than 5, and R1 and R2 are the same or different and separately represent hydrogen or saturated or unsaturated hydrocarbon radicles, or together with the nitrogen complete a heterocyclic nucleus, the said copolymer being derived from a mixture of monomers of acrylonitrile and vinyl ethers of amino alcohols of which the latter constitute 20-95 per cent. of the mixture.  The vinyl ether may be a vinyl ether of diethylamino- or dimethylamino-ethanol or of N-b -hydroxyethyl pyrrolidine.  Polymerization is effected in concentrated aqueous solution in the presence of a catalyst such as an alkali metal persulphate, hydrogen peroxide, stearyl peroxide or a redox system, e.g. potassium persulphate and sodium bisulphite.  Part of the catalyst may be introduced initially and the remainder during the course of the polymerization.  Acetic acid may be added to assist solution of the monomers.  In examples, polymerization is effected at pH 5.4 and 5.1.  The copolymers may be admixed with polyacrylonitrile to produce mixtures having a desired content of amino groups which may be dissolved in dimethylformamide and extruded into a setting medium to produce filaments.
Patent GB-119131-A (GB)
Title: Improvements in Pneumatic Rock Drilling Machines.
IPC: E21B21/01
Filed: 1917-10-25
Abstract: 119,131. Aktiebolaget Atlas Diesel, and Andersson, G. Oct. 25, 1917. Percussive drills. - In a scavenging device for rock drills, the water supply nozzle 9, held in the bit-holder 5 by a screw gland 10, has a socket 11 containing a packing 12 which bears on a flat on the anvil block 3 to prevent rotation of the latter and on which the water pressure acts to give a tight joint in the socket 11 and against the anvil block.
Patent GB-820805-A (GB)
Title: Improvements in or relating to circuit-arrangements for igniting valves having liquid cathodes
IPC: H02M1/02
Filed: 1956-05-18
Abstract: 820,805. Metal-vapour discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 18, 1956 [May 21, 1955], No. 15579/56. Class 39(1). [Also in Group XL(c)] An electric discharge tube 1 comprising a liquid cathode 2, main anode 3 and auxiliary anode 4 is ignited by the application to a resistance ignition electrode 5 of a composite impulse produced by the discharge through a controllable tube 6 of an artificial line, comprising a coil 8 and condensers 11 to 21, which is terminated in a non-inductive resistor 7 and is charged by means of a rectifier tube 9 fed by a transformer 10. The condenser 11 has a higher capacity than condensers 12 to 21 which are all of equal value, so that the composite impulse consists of a first part of short duration but of more than sufficient amplitude to ignite the cathode spot, and a second part of much smaller amplitude but of sufficient duration to permit the anode 3 of the tube 1 to take over the discharge. The duration of the whole impulse is short (e.g. 55 microseconds) relative to the period of the usual A.C. mains supply.
Patent GB-451303-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/52
Filed: 1935-05-29
Abstract: 451,303. Cathode-ray tubes. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. May 29, 1935, No. 15665. Convention date, June 13, 1934. [Class 39 (i)] A single accelerating electrode A is arranged between the emissive cathode K and an apertured electrode V, and a separate modulating electrode M is provided, the electrodes being so biassed that the electrons have negligible velocity at the electrode V which is thus the effective origin of a beam X accelerated by one or more anodes C and deflected as at D before reaching the image screen E. The electrodes A, V, are at positive potentials relatively to the cathode K of 10-50 and a few volts respectively. The grid M is negatively biassed and controls the intensity of the ray without substantially influencing the electron velocity at the electrode V, or the size of the spot on the screen E. The electrodes K, A, M, V, are arranged in a negatively biassed Wehnelt cylinder W closed at one end. The tube may contain gas for focusing. The Specification as open to inspection under Sect. 91 comprises also a screen grid in the cylinder W and at positive potential, or at cathode potential and between the electrodes M and V. This subject-matter does not appear in the Specification as accepted.
Patent GB-1211443-A (GB)
Title: Production of acrylic acid from residues obtained in working up acrylic acid
IPC: C07C57/07
Filed: 1968-04-02
Abstract: 1,211,443. Acrylic acid. BADISCHE ANILIN- & SODA-FABRIK A.G. 2 April, 1968 [3 April, 1967], No. 15682/68. Heading C2C. Acrylic acid is prepared by heating a residue which contains hydracrylic acid, dihydracrylic acid and polymerized hydracrylic acids and which has been obtained in the working up of acrylic acid, in the presence of, as catalyst, a compound containing a secondary or tertiary amino group or a tertiary phosphine. Suitably the acrylic acid residue may be obtained by the carbonylation of acetylene or by the oxidation of propylene and may contain, in addition to the above hydracrylic acids, appreciable amounts of acryloylhydracrylic acid and #- acetoxypropionic acid. The process is preferably carried out at between 150‹ and 190‹ C. at subatmospheric pressure. Suitable specified catalysts include quinoline, tributylamine, N,N- dimethylcyclohexylamine, triphenyl and trin-butyl phosphine.
Patent GB-347911-A (GB)
Title: Improvements in process and apparatus for drying moist substances
IPC: F26B11/04
Filed: 1930-05-21
Abstract: 347,911. Rotary - drying apparatus. SACHTLEBEN AKT.-GES. FœR BERGBAU UND CHEMISCHE INDUSTRIE, Homberg, Niederrhein, Germany. May 21, 1930, No. 15691. Convention date, Dec. 6, 1929. [Class 34 (ii).] Relates to the drying of moist substances such as lithopone, which are liable to decomposition or oxidation at high temperatures, in slightly inclined rotary drums with indirect heating in like current, and direct heating in counter current. The drum, which rotates within a casing E through which heating gases flow in cocurrent, consists of a forward part F, conical next the feed G, and provided with internal spirals g, and a rear part composed of circularly arranged tubes H through which gases at from 100-150‹ C. are passed in counter-current to the material. A central tube K, through which no material passes, projects into the part F and delivers gases at 600‹ C. on to the moist material. The conical formation of the part F assists in causing any dust formed and carried along by the gases to be deposited on the moist material. Heat still contained in the indirect heating gases when drawn off may be transmitted to the direct drying gases.
Patent GB-1206733-A (GB)
Title: Fuel subassembly for a liquid-metal-cooled fast reactor
IPC: G21C3/32
Filed: 1969-03-26
Abstract: 1,206,733. Fuel elements. UNITED STATES ATOMIC ENERGY COMMISSION. 26 March, 1969 [10 April, 1968], No. 15740/69. Heading G6C. A fuel subassembly for a liquid metal-cooled fast nuclear reactor comprises a shroud containing a bundle of slender, elongated, parallel fuel pins, each of which includes a fuel zone and a fission-gas plenum, the ends of the fuel zones of all the fuel pins lying in parallel planes perpendicular to the axis of the subassembly, with the fuel pins being so oriented that some of the fission-gas plenums are located downstream of the fuel zones and the remainder are located upstream of the fuel zones. In one embodiment described, a group of fuel pins at the centre of the fuel subassembly have their gas plenums below the fuel while the remaining fuel pins have their gas plenums above the fuel. Two adjacent outer and inner fuel pins 15a, 15b respectively are shown in Figs. 6 to 8, both including a tube 38 enclosing PuO 2 /UO 2  pellets 40 which make up the fuel zones 13. Pellets 41 of depleted UO 2  are disposed above and below the fuel zones 13 to serve as an axial blanket while nickel rods 42 are disposed above the fuel zones 13 to serve as an axial reflector. Springs 43 are disposed above rods 42. The fuel pins differ only in the location of the fissiongas plenums 44 which are formed by stainless steel tubes 45. In the outer fuel pins 15a the plenums 44 are disposed above the fuel zones 13 between springs 43 and upper end fittings 22, while in the inner fuel pins 15b they are disposed below the fuel zones 13 between pellets 41 and lower end fittings 29. This embodiment was specifically designed for use in a reactor which required the lower end of each fuel subassembly to be tapered. Where this is not necessary, alternate rows of fuel pins may have their fissiongas plenums located on one side of the fuel zones and the remaining rows have their plenums on the other side of the fuel zones. Reference has been directed by the Comptroller to Specification 1,139,968.
Patent GB-753225-A (GB)
Title: Improvements in or relating to high voltage electric insulating bushings
IPC: H01F27/04
Filed: 1953-06-08
Abstract: 753,225. Insulating bushings. GENERAL ELECTRIC CO., Ltd., and MORRIS, G. G. Sept. 7, 1954 [June 8, 1953], No. 15744/53. Class 36. In a high voltage bushing having a flexible lead 12 passing through and secured to one end of a central metal tube 4, the end of the lead is secured to a terminal member 11 which passes through an end closure 9 of the tube, and a clamp 14 is adjustably positioned on member 11 to rest against closure 9 and thus secure the lead 12 in place. The tube 4 is carried by the top wall 5 of a hollow metal termination chamber 1 mounted on the bushing (not shown), and is secured by gasket 6, washer 7 and gland nut 8. The member 11 may comprise a ferrule into which the end of the lead 12, which has been cut to approximately the required length, is sweated. The ferrule and lead are drawn up through the tube 4 and closure 9 by a wire threaded through the tube and attached to loop 13. The ferrule 11 is sealed in the closure 9 by a washer 17 and sealing-ring 18. A split clamp 14 is fastened to the ferrule to hold it in place. A flexible lead 15 runs from the clamp 14 to the terminal 3 on a top cap 2, which cap is finally secured on the chamber 1.
Patent GB-274262-A (GB)
Title: Improvements in or relating to trunks, suit cases and like receptacles
IPC: A45C13/02
Filed: 1926-06-23
Abstract: 274,262. Heard, K. W. June 23, 1926. Fittings, internal; partitioned cases.-A trunk, suit case, or similar receptacle is fitted along each vertical corner with a rack member 2 carrying one or more adjustable sliders 4 to each of which one corner of a flexible or partly flexible partition 8 is attached by means of a hook 7. The partitions may be of canvas or of wood bordered by canvas or leather.
Patent GB-243633-A (GB)
Title: Improvements in or relating to hurdles particularly applicable for use in athletics
IPC: A63K3/04
Filed: 1925-06-18
Abstract: 243,633. Adams, F. June 18, 1925. Hurdles, particularly for athletics. comprise supporting members a and a framework i having slotted side members g to receive locking bolts' e that adjustably secure it to the supporting members. To minimize risk of accidents the horizontal members of the framework are oval in cross - section and the edges of other portions of the apparatus are rounded.
Patent GB-1348805-A (GB)
Title: Test board assembly for electronic components
IPC: G01R1/04
Filed: 1971-05-19
Abstract: 1348805 Electric couplings COMPAGNIE INDUSTRIELLE DE TELECOMMUNICATIONS CIT-ALCATEL 19 May 1971 [20 May 1970] 15881/71 Heading H2E During testing of a "flat pack" integrated circuit or the like the component 2 is held safely in a carrier 30 which is then clamped against an insulating connecting board 32 through which protrude connecting pins 90 attached coaxial cables 44, 46, 48. The pins slide in bushes and are biased upwardly by a foam rubber pad 112 to contact the lugs 6 through apertures 20 in the carrier 30. The carrier is positioned accurately by two unequal locating pins 60, 62 and is pressed down by a pressure pad 64 attached resiliently to a lever 72 which may be engaged by a looking rod 82. The connecting board 32 may have printed wiring on part of its surface (Fig. 3, not shown) to earth the coaxial cables to and to supply power via several pins to several lugs while testing the component. The arrangement is stated to be applicable to components with fast response times, e.g. 1 ns.
Patent GB-1155808-A (GB)
Title: Improvements in railway vehicle brake riggings comprising automatic slack adjusters
Inventor: SANDER NILS BORJE LENNART
IPC: B61H15/00
Filed: 1968-04-02
Abstract: 1,155,808. Automatic slack adjusters. SVENSKA A.B. BROMSREGULATOR. 2 April, 1968, No. 15897/68. Heading F2E. Brake rigging for a rail vehicle wheel having live and dead shoes includes an automatic, two way, nut and screw slack adjuster connected between the live and dead levers. The screwed rod 11 is pivoted at 10 to the dead brake lever and urged forward by compressed air in chamber 12 acting on piston 13. A sleeve 24 slidable on the rod 11 is connected by bars 22, 23 to the top of the live lever and the brake-operating piston-rod 3, so that when the linkage is slack a spring-loaded washer 27 in the sleeve 24 will engage the forward thrust race on the nut 14 forcing it to rotate backwards until it engages the " clutch " face b. If the linkage is tight, the dead brake lever will first move the rod back against the air pressure in chamber 13 allowing spring 20 bearing on the rear thrust race which forces the nut to rotate forwards. In normal adjustment the sleeve 24 and the rod move back together so that washer 27 bears on the forward thrust and prevents movement of the nut.
Patent GB-241136-A (GB)
Title: Improvements relating to chain grate stokers
IPC: F23H11/18
Filed: 1925-06-19
Abstract: 241,136. Gubb, J. R., and Winn, S. G. June 19, 1925. Grates.-The dumping-bar 1 of a chain grate is fitted with a removable top 3 made in two parts-front and rear-secured by means of undercut tongues and grooves. The two parts slide into position from front and rear respectively up to a stop-rail 4 which they are recessed to engage. Slots 5 are provided to facilitate removal. The top surface may be horizontal or slope downwardly towards the rear.
Patent GB-580408-A (GB)
Title: Improvements in the manufacture and production of lacquers and plastic masses
IPC: C08K5/1545
Filed: 1943-09-29
Abstract: Solutions for use in making lacquers for wire, wood and fabric are formed by dissolving shellac, resin, copal, colophony, waxes or drying oils a liquid of the general formula <FORM:0580408/III/1> in which R1 is -CR2=CH- or -CHR3-CH2-R2 and R3 being attached to the carbon atom directly linked to oxygen, R2 being hydrogen or methyl and R3 being hydrogen, methyl, ethyl, propyl or iso-propyl. Dihydropyrane and tetrahydropyrane are specified. Pigments, fertilizers, dyes and other modifying agents may be added. Specifications 427,494 and 541,660, [both in Group IV], are referred to.ALSO:Solutions for use in making lacquers and plastic masses are formed by dissolving organic film-forming substances in a liquid of the general formula <FORM:0580408/IV/1> in which R1 is -CR2=CH- or -CHR3-CH2-, R2 and R3 being attached to the carbon atom directly linked to oxygen, R2 being hydrogen or methyl and R3 being hydrogen, methyl, ethyl, propyl or iso-propyl.  Dihydropyrane and tetrahydropyrane are specified.  The film-forming substance may be polyvinyl chloride, chlorinated polyvinyl chloride, polyvinyl acetate, polyvinyl acetals, polyacrylic and polymethacrylic acids, their esters and derivatives, phenol-aldehyde resins, alkyd resins, nitro cellulose, ethyl cellulose.  Pigments, plasticisers, dyes and other modifying agents may be added.  Examples describe the preparation of solutions of (1) polyvinyl chloride and tricresyl phosphate; (2) polymethyl methacrylate and dibutylphthalate; (3) and (4) chlorinated polyvinyl chloride; (5) vinyl chloride-vinyl acetate interpolymer; (6) shellac.  The solutions may be used for coating wire, wood and fabrics and in dry-spinning filaments. Specifications 427,494 and 541,660 are referred to.ALSO:Solutions for use in making lacquers and plastic masses are formed by dissolving chlorinated rubber in a liquid of the general formula <FORM:0580408/V/1> in which R1 is -CR2=CH- or -CHR3-CH2-, p  R2 and R3 being attached to the carbon atom directly linked to oxygen R2 being hydrogen or methyl and R3 being hydrogen, methyl, ethyl, propyl or isopropyl.  Dihydropyrane and tetrahydropyrane are specified.  Pigments plasticizers, dyes and other modifying agents may be added.  Specifications 427,494 and 541,660, [both in Group IV], are referred to.