baber/WOPTO huggingface dataset:
Patent GB-1392974-A (GB)
Title: Magnetic device
IPC: G11C11/14
Filed: 1972-10-02
Abstract: 1392974 Magnetic storage arrangements PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Oct 1972 [5 Oct 1971] 45280/72 Heading H3B A propagation path for cylindrical domains in a magnetic plate having a preferred magnetization direction transverse of its plane is defined by at least one groove having a stepped crosssection in the surface of the plate. As shown in Fig. 1, the domains 3 in the plate 1 are restricted within the width of the groove, and in a modification, Fig. 3 (not shown), the groove contains a permalloy T-bar propagation structure. The domain path 7, Fig. 2, may alternatively be defined by two narrow grooves or scratches 5, 6 between which the domains are located. A domain propagation structure consisting of wire loops or permalloy may be located between adjacent grooves, Fig. 4 (not shown). In Fig. 5, the domains 14 in a magnetic plate 11 follow a sinuous path 13<SP>1</SP> formed by a scratch pattern 13. The domains may be recirculated by following a feedback scratch pattern 15 which is coupled with domain transporting loops 16, 17. The circulating arrangement of Fig. 5, may be completely filled with domains and magnetically coupled to a further magnetic plate, 20, Fig. 6, in which a scratch pattern 24 is preferably formed. By stepping the domains filling plate 11 around the closed propagation path, a domain introduced at 22 in the further plate 20 is correspondingly transported along a sinuous path 20 to an output position 23. In a similar two-plate arrangement, Fig. 7 (not shown), a plurality of domains introduced simultaneously in the further magnetic plate are moved in parallel along linear paths to an output region. It is stated that domains may be moved by the heating effect of a deflected light beam.
Patent GB-1206604-A (GB)
Title: Cell for the prodcution of aluminium by fusion electrolysis and method of operating the cell
Inventor: IMREFI JOZSEF
IPC: C25C3/08
Filed: 1967-10-04
Abstract: 1,206,604. Fused electrolyte cell. TATABANYAI ALUMINIUMKOHO. Oct. 4, 1967, No.45291/67. Heading C7B. A fused electrolyte cell for aluminium production comprises one or more carbon containing anodes 11 having a horizontal lower surface and depending into a cathode tank on the base A1 of which collects the precipitated aluminium melt 9, forming a level surface corresponding to or larger than the horizontal cross-section of the anode and covering completely one or more electrically conductive elevations 7, 8 formed of pre-baked carbon or graphite blocks or of a tamping mass with carbon as basic material (having specific electrical resistance of 5-70 ohms-cm 2/m) on the base under points at which or near where alumina is charged into the cell or along the anode periphery (10), Fig. 3 (not shown) and/or below the anode (12), (Fig. 5). The total surface of the elevation(s), projected on to a horizontal plane, is at least 20% of the horizontal cross-section of the anode(s). The upper surface of the elevation(s) may be horizontal or inclined at an angle not exceeding 15 degrees to the horizontal, the side faces being vertical or inclined at least 10 degrees to the horizontal, and/ or the surface of a cylinder and/or a cone. E.g. alternating cylinders and squares of pre-fired graphite may be set in sintered magnesite, SiC, corundum, coke, a tamping mass produced from a mixture thereof with tar or pitch binder, or prebaked blocks having a ceramic binder. Alumina slime is thus avoided on the cathode surface.
Patent GB-1470909-A (GB)
Title: Electric lamp
IPC: H01J5/32
Filed: 1975-10-31
Abstract: 1470909 Discharge lamps; incandescent filament lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 Oct 1975 [4 Feb 1975] 45306/75 Headings H1D and H1F [Also in Division H2] A lamp Fig. 1 or Fig. 2 having a quartz glass envelope 1 or 10, sealed by tipping off 2 or 12 and forming a pinched seal 3 or 11, molybdenum inner conductors 5 or 14 and molybdenum foils 4 or 13, also has molybdenum outer conductors 7 or 16 with corrosion-resistant sleeves 8 or 17 secured to the outer conductors by kinks 9 or 18. The sleeve may consist inter alia of nickel, manganese nickel, nickel-plated brass, nickelplate iron, chromium-plated iron, platinum, gold, chromium, iridium and ruthenium. A lamp, as in Fig. 1 may be assembled in a cold light mirror (not shown) using a cement which is corrosive for molybdenum.
Patent GB-1520496-A (GB)
Title: Process for the production of solutions of lower aliphatic carboxylic acid salts of cationic dyestuffs
IPC: C09B43/00
Filed: 1975-10-31
Abstract: 1520496 Preparing dyestuff solutions CIBA-GEIGY AG 31 Oct 1975 [6 Nov 1974] 45379/75 Heading D1B Solutions of salts of cationic dyestuffs with C 1 -C 4 -aliphatic carboxylic acids are prepared by reacting a halide e.g. chloride or bromide of a cationic dyestuff with the carboxylic acid in presence of an epoxide having a maximum of 12 C atoms. Formic and acetic acids are preferred and may be used anhydrons or in water, in amounts up to 2000% excess. 100 to 250% excess of epoxide e.g. epichlorohydrin ethylene or propylene oxides, butane diglycidyl ether, 1, 2 epoxybutane and butadiene diepoxide are used and the product solutions which contain 15-50% of dye salt may be diluted with water or an organic solvent e.g. ethylene glycol. The solutions are used as such or may be used to prepare dye liquors and print pastes for leather, wool, silk, cellulose acetate, tannined cotton, paper, and acid modified polyamide, polyurethane, polypropylene, and polyester.
Patent GB-1222403-A (GB)
Title: Improvements in or relating to processes for the production of carbamates
IPC: H05B41/02
Filed: 1968-09-26
Abstract: 1,222,403. Production of carbamates and thiocarbamates. KAISER ALUMINUM & CHEMICAL CORP. 26 Sept., 1968 [12 Oct., 1967; 22 April, 1968], No. 45842/68. Heading C2C. A process for producing a carbamate of the general formula R 1 -NH-COX-R 2 -Y wherein R 1  signifies alkyl, X is O or S, R 2  signifies an aliphatic, aromatic or alicyclic hydrocarbon divalent radical and Y is H, Cl, Br or alkyl, comprises: (a) admixing phosgene and an alkylamine in a molecular ratio of at least 1 mol. of phosgene per mol. of amine at a temperature of at least 150‹ C. to produce a reaction mixture, (b) admixing the reaction mixture and an active-hydrogen-containing compound as determined by the Zerewitinoff method and having the general formula HX-R 2 -Y, in a molecular ratio of 0À9 to 1À1 mol. of HX-R 2 -Y per mol. of alkylamine (an inert organic solvent is utilized if HX-R 2 -Y is a solid at the carbamate formation reaction temperature), and (c) recovering the carbamate.
Patent GB-1500026-A (GB)
Title: Dielectric optical waveguide couplings
IPC: G02B6/38
Filed: 1975-11-05
Abstract: 1500026 Joining optical fibres POST OFFICE 22 Oct 1976 [5 Nov 1975] 45965/75 Heading G2J Optical waveguides are aligned, prior to joining permanently by launching light into the remote end of one of the fibres and then moving the end of one fibre towards the end of the other fibre and monitoring stray light in the vicinity of the ends of the fibres i.e. the light that is not coupled into the second fibre, and fixing the waveguides relative to each other when the monitored light is a minimum. An apparatus is shown in Fig. 1 comprising a base plate 22 which may be moved vertically, having a recess 3 for carrying a grooved plate, the groove of which is aligned with grooves 7, 8 in inclined ramps 1, 2 so that when a pair of fibres are placed in grooves 7, 8 and base 22 is raised, the ends of the fibres are positioned in the groove of said grooved plate; photo diode housing 4 can then be hinged over the join area and whilst ramp 2 is moved towards ramp 1 the stray light in the vicinity of the join is monitored, so that when the minimum point is reached the fibres may be fixed by means of a cover plate over the grooved plate and an adhesive e.g. an epoxyresin which may be heat or U.V. cured.
Patent GB-1412766-A (GB)
Title: Phase shift and signal generating circuits
IPC: H03K5/14
Filed: 1972-10-05
Abstract: 1412766 Pulse delay; frequency or phase multiplication and duty cycle control COMMISSARIAT A L'ENERGIE ATOMIQUE 5 Oct 1972 [5 Oct 1971] 46015/72 Heading H3P An aperiodic circuit for phase shifting, phase or frequency multiplication or for producing the 1 : 1 duty cycle pulses comprises a plurality of pulse delay circuits in cascade each comprising means 4a for producing constant currents in opposite directions alternately, an integrator 1a for the currents, a bi-stable circuit 5a which when set (at 6a) causes the current to flow in one direction until the integrator reaches the threshold of the bi-stable circuit causing it to reset and thus reverse the current, the delay being determined by the reset. It is explained that if the input pulses at 6a are received before the integrator reaches its limit an output pulse is produced having a duty cycle dependent upon the ratio of the currents and independent of frequency. Differentiating the reset edge by means not shown thus produces a pulse at 6b having a phase delay independent of frequency. A further current i may be applied to the integrator to adjust the delay. As shown, phase shifter Da produces a shift variable between 0 and 180 degrees and the shifters Dh, Dc, Dd 90 degrees each. By using pairs of outputs to trigger bi-stable circuits 13 and 14 unity mask-space ratio pulses of different delay may be obtained. In Fig. 5, not shown, a bistable circuit is set by the input pulses and reset by pulses delayed by 90 degrees in each of two of the delay circuit so that pulses of unity maskspace ratio are obtained. An n phase output may be obtained by feeding in a logic circuit, pulses from a chain of n-1 stages each producing a delay of the period T divided by n-1 (Fig. 7, not shown). Similarly, frequency multiplication can be effected by combining the output from points in a chain of stages, a circuit as in Fig. 5, being used at the output to convert the output signal to unity mask-space ratio (Figs. 8 and 9, not shown).
Patent GB-955358-A (GB)
Title: Improvements in holders for metal sheets
Inventor: SIGSWORTH ARTHUR CHARLES MAURI
IPC: C21D9/00
Filed: 1961-12-22
Abstract: 955,358. Internal furnace charge supports. HENRY WIGGIN & CO. Ltd. Dec. 21, 1962 [Dec. 22, 1961], No. 46062/61. Heading F4B. A suspension bar 1 mounted on carrier rails (not shown) for propulsion through a furnace, carries two sliding support blocks 2 and 3 each pivotally carrying side members both comprising freely swinging upper arms 4 and lower arms 5, respectively, attached by members 10 and 14 to a metal sheet 9, thrust members 7 and 13 slidingly mounted on each arm 4 being operative to increase the distance between points of attachment of the sheet to the arms 4 and 5 by causing said arms to swing outwardly. Thrust member 7 bears against the face of a fixed abutment 8 in the support block and thrust member 13 bears against the upper part of arm 5. In use the support blocks are racked apart until the sheet is taut, and on heating the sheet, slackness caused by expansion is taken up by outward movement of the arms 4 and 5 caused by downward gravitational movement of the thrust members 7 and 13. In a modification, Fig. 2 (not shown), thrust members 7 are dispensed with, the upper arms 4 being rigidly attached to the blocks.
Patent GB-1201793-A (GB)
Title: Improvements in or relating to musical instrument striking mechanisms
Inventor: SJOSTRAND GUNNAR OLOF
IPC: G10C3/22
Filed: 1967-10-09
Abstract: 1,201,793. Striking mechanisms. G. O. SJOSTRAND. 9 Oct.. 1967 [10 Oct., 1966]. No. 46075/67. Heading G5J. A striking mechanism comprises a key 1 connected directly as shown (or via another member) to a hammer 3 carried on a resilient tongue 2 attached to the key or the member so as to project beyond the bevelled free end 9 thereof. A sound damping coating 8 may be applied to the key or member.
Patent GB-1206111-A (GB)
Title: Improvements in or relating to methods of extrusion
Inventor: BULGIN DOUGLAS
IPC: B29C48/92
Filed: 1966-10-15
Abstract: 1,206,111. Dimensioning extrudates. DUNLOP CO. Ltd. 11 Oct., 1967 [15 Oct., 1966], No. 46197/66. Heading B5A. [Also in Division G3] To control the cross-sectional dimensions of an extrudate 3 of " rubber-like material " (see below), a chamber 1 is situated immediately downstream of an extruder 2 and is such that a fluid, at a pressure-variable from above to below ambient, may be applied substantially normally to the extrudate. The fluid may be supplied at a temperature above or below ambient. As shown, the applied pressure value is determined by a pneumatic dimension-sensing device 13 working in conjunction with an amplifier 14 and a valve 11 connectable as required to a source S of compressed air or vacuum. On the exit side of chamber 1 a channel 6 is dimensioned slightly larger than the predetermined cross-section of the extrudate so that air is throttled in the chamber and the small amount which does escape acts as a lubricant. In modifications, valve 11 may be dispensed with, with amplifier 14 directly feeding chamber 1, an electro-pneumatic circuit may be used and pneumatic device 13 may be replaced by pairs of spring-loaded rollers which are mechanically connected to a suitable transducer. If liquid is used a suitable seal is placed at the downstream end of channel 6. Chamber 1 need not be in direct contact with extruder 2 in which case a throttle or seal is provided at its upstream end. By the term " rubber-like material " is meant materials subject to dimensional change after extrusion, e.g. rubber and certain plastics. The invention particularly relates to the extrusion of tread strips for tyres.
Patent GB-1406853-A (GB)
Title: Phosphorothionyl disulphides
IPC: C07F9/6571
Filed: 1972-10-06
Abstract: 1406853 Lubricants; fuels EXXON RESEARCH & ENG CO 6 Oct 1972 46224/72 Headings C5F and C5G [Also in Division C2] A lubricating oil composition comprises a major proportion by weight of a lubricating oil and as an antioxidant a minor proportion by weight of a phosphorothionyl disulphide prepared by reacting an organic thiophosphoric acid with H 2 O 2  under conditions such that either the acid is added to the peroxide or the acid and peroxide are introduced into the reaction vessel such that there is never more than 10 mole per cent excess of acid (compared with the peroxide) in the reaction vessel. The composition preferably contains 0À01 to 10% by weight plus disulphide based on the total weight of the oil plus disulphide. The lubricating oil may be an animal, vegetable or mineral oil or a synthetic ester oil. The disulphides may also be added as antioxidants to fuel oils and gasolines for example in an amount between 0À001 and 5% by weight based on the total weight of the fuel oil composition. Detergents (e.g. calcium sulphonates) or V.I. improvers (e.g. vinyl acetate/furmarate copolymers) may also be added to the fuel or lubricant oil.
Patent GB-462761-A (GB)
Abstract: 462,761. Ignition timing. BRISTOL AEROPLANE CO., Ltd., and FEDDEN, A. H. R. Nov. 27, 1935, No. 32941. [Class 7 (iv)] Differently-timed interrupters, the one giving retarded and the other advanced ignition, are used according to the throttle-valve setting, this latter being variable according to the delivery pressure of the supercharger. The throttle lever 18 is connected to the valve lever 16 through links 14, 15. To the hinge 13 is connected a rod 11 from a servomotor 12 dependent on a capsule within the casing 10, the capsule being responsive to the compressor delivery pressure and the basic position from which it is operative being varied by a cam 22 attached to a rod 20. An arm 17 is connected bv a rod 23 to a switch-lever 25 which may engage a contact 28 in circuit with an interrupter giving advanced ignition, or with either of contacts 26, 27 for giving retarded ignition in either extreme position of the throttle-lever. The contacts 26, 27 overlap the contact 28 thereby avoiding ignition discontinuity.
Patent GB-1056459-A (GB)
Title: Improvements in or relating to hydraulic reciprocating motor devices
IPC: F01B9/08
Filed: 1963-11-29
Abstract: 1,056,459. Hydraulic reciprocating motors; turning turbine rotors. GENERAL ELECTRIC CO. Nov. 29, 1963 [Dec.3, 1962], No.47271/63. Headings F1A and F1K. A hydraulic motor, e. g. for rotating a turbine through pawl and ratchet gear, comprises a piston 6 having a spring-loaded by-pass valve 15 connected to a piston valve 20 which is subjected on its lower face 20a to a hydraulic pressure less than that acting on piston 6, so that valve 20 follows piston 6 during its upward stroke and at the end of the stroke continues to move upwardly to open valve 15 and permit the return stroke of piston 6 by a spring 10. The end of the upward stroke of piston 6 is determined by a land 25 on valve 20 covering a supply groove 26. Pressure liquid is supplied to valve face 20a via a restriction 28. Valve 20 is mounted with limited axial movement on by-pass valve rod 19 to prevent "governing" action at the end of the upward stroke. The motor acts to rotate a turbine ratchet wheel 38 through a pawl 12 which, before the commencement of the upward stroke, is moved to engage a ratchet tooth by a piston 32, and at the end of the upward stroke is moved out of engagement by a spring-loaded plunger 13.
Patent GB-1236968-A (GB)
Title: Improved device for the insertion of sheets envelopes cloths and the like into hooking or clasping elements
Inventor: CAPOVILLA ENRICO
IPC: B42F3/00
Filed: 1968-10-07
Abstract: 1,236,968. Filing papers. E. CAPOVILLA. 7 Oct., 1968, No. 47377/68. Heading B6E. A device for attachment to the edge of a sheet or the like to permit the sheet to be retained on a closed filing ring comprises two elements placed one upon the other, each element having a hole registering with the hole of the other element and a slit staggered in relation to the slit of the other element. The two elements may be formed from a single strip 1 folded at 9, each half of the strip having a hole 2, 3 from each of which a slit 8, 12 extends, the slits meeting at the fold 9. The device is applied to a sheet 4 or the like, which sheet is formed with a slit 5 coextensive with the region delimited by the slits 8, 12 and the fold 9. The device can be pushed on to a ring (not shown) if the device is orientated at a small angle to the plane of the ring. The slits may have various conformations. The device may be formed of plastics material or of sheet steel (Fig. 5, not shown) with a brass rim (38) for attachment to the sheet. One of the two elements may comprise the sheet itself.
Patent GB-1121550-A (GB)
Title: Electronic apparatus for the study of particles in liquid suspension
IPC: G01N15/12
Filed: 1965-11-10
Abstract: 1,121,550. Counting particles. COULTER ELECTRONICS Ltd. Nov.10, 1965 [Nov. 25, 1964], No. 47696/65. Heading G1N. In apparatus for counting particles suspended in a liquid, e.g. leukocytes in a blood sample, as the liquid flows through an aperture in an insulating wall separating two electrodes (26,28), the aperture is formed in a flexible elastic diaphragm so that in the event of debris blocking the aperture, the diaphragm can expand, thereby allowing the debris to pass through the aperture. The diaphragm may be rubber or cellulose and may be secured under tension to the wall of a glass or plastic tube (10) by a glass, plastic or metal ring (52), Fig. 4 (not shown). If a metal ring is used, it may serve as electrode (26) and may be of platinum. In response to the presence of debris in the aperture, as detected by an increase in pressure in tube (10), an alarm (34) and an auxiliary pump (36) are operated automatically. The pump (36) applies further pressure to force the debris through the aperture. Alternatively, negative pressure may be applied to suck the diaphragm inward. Pump (36) may be operated manually.
Patent GB-1141043-A (GB)
Title: Rail vehicle propulsion means
IPC: B61J3/04
Filed: 1964-11-24
Abstract: 1,141,043. Rope railways; propulsion systems. SHAW TREW & SMITH Ltd., and D. G. SHAW. 22 Feb., 1966 [24 Nov., 1964], No. 47724/64. Heading B7L. A rail vehicle propulsion system comprises a pair of endless chains 3, Fig. 1, driven together by sprockets 4, on vertical axes, from a common motor (not shown) and tensioned by sprockets 5, on vertical axes, and slidably adjustable blocks 13, the operative runs 2 of the chains being parallel and disposed in gaps in the fixed rail track 10 so as to form moving rails for propelling vehicles therealong, whilst the return runs 12 of the chains are arranged alongside the runs 2. The chains are guided in guides 21, Fig. 2, of a guideway 6 mounted on a support plate 22. Each chain 3 comprises upper and lower links connected by vertical pivot pins 17, upper stepped links 16 alternating with upper flat links 15 whilst all lower links 15 are flat links. The upper surfaces of the upper links 15, 16 whose ends are curved, constitute a flat surface to receive the vehicle wheels thereon. Alternate lower links 15 carry depending webs 24 for roller pairs 23 below the pins 17. The rollers 23 engage the plate 22. Between the upper and lower links 15, 16 rollers 20 are mounted on the pins 17 to engage the guides 21.
Patent GB-1084976-A (GB)
Title: Float roof storage tank
IPC: B65D88/50
Filed: 1964-11-26
Abstract: 1,084,976. Seals for tanks with floating roofs. UNION TANK CAR CO. Nov. 26, 1964 [Dec. 31, 1963], No. 48154/64. Heading E1T. A seal for a tank of the floating roof type comprises an envelope 20 disposed about a core 24 of circular or octagonal cross-section to permit rolling action when the roof rides up and down the tank wall. The envelope is made of rubber coated nylon and is provided with positioning tabs 30, 31 and a wear section 32 of double thickness. The core is a sectionalized one made from foamed urethane.
Patent GB-1168828-A (GB)
Title: Improvements in Weighbeam Type Analogue Computing Apparatus
Inventor: SORTEBERG JOHANNES
IPC: G06G5/00
Filed: 1966-10-28
Abstract: 1,168,828. Fluid-pressure servomotor systems. J. SORTEBERG. Oct. 28, 1966, No.48536/66. Heading G3P. A fluid-pressure servomotor system comprises two levers 12, 13, means A, B or C, D for transmitting a force to each lever, a movable fulcrum 8, 9 for each lever, the fulcra being movable in unison, means for balancing the movements on the levers, a pilot valve 52 with pneumatic output signal, feedback of the output signal to at least two of the force transmitting means A, C, and means 65 to reduce the speed of response of the force transmitting means. The lever 12 carries an obturator 37 for a bellows-mounted nozzle 39 applying back pressure to the means A, C and to an air motor 6 for moving the fulcra 8, 9 while the lever 13 carries an obturator 38 for a nozzle 40 applying back pressure to the diaphragm 49 of the pilot valve 52. When a tube 62 in the pilot valve is moved upwardly it unseats as valve disc 59 to allow fluid from the supply to enter conduits 53, 54 leading to the means A, C while when the tube is moved downwardly the conduits are connected to an exhaust vent 51. If the balance of the beam 12 is disturbed, the obturator 37 causes a change in the back pressure from the nozzle 39 and adjustment of the fulcra 8, 9. This adjustment disturbs the balance of the beam 13 to vary the back pressure from nozzle 42 and cause the pilot valve to alter the pressure applied by the means A, C. The bellows mounting of the nozzle 39 enables the lever 12 to be kept stationary with respect to the supporting structure while the pilot valve ensures that the lever 13 is always in the same position when the system is in balance. The system may be used for extracting square roots and has an output line 67.