baber/WOPTO huggingface dataset:
Patent GB-1076169-A (GB)
Title: Fluid flow control valve device
Inventor: HUNT EDGAR GERALD
IPC: F16K31/42
Filed: 1963-08-12
Abstract: 1,076,169. Fluid-pressure servomotor systems. DOWTY FUEL SYSTEMS Ltd. Nov. 11, 1964 [Aug. 12, 1963], No. 31792/63. Heading G3P. [Also in Division F2] A fluid-flow control device for controlling the flow of fuel to a set of burners comprises a chamber 4 having an inlet 1 and an outlet 2. A first valve member 7 co-operates with a seat 5 at the inlet and a second valve member 8 cooperates with a seat 6 at the outlet. The valve members are carried by a lever 9, pivoted at 11, the valve member 8 having a stem 15 which has clearance with a hole 16 in the lever to allow the valve member 8 to centre on its seat. The valve members 7 and 8 are positioned by the forces due to the inlet pressure, chamber pressure and outlet pressure acting on the valve members. A passage 21 leads from the chamber 4 and is connected to the outlet 2 under the control of a solenoid actuated pilot valve 23. The solenoid is operated by a variable parameter to vary the flow from chamber 4 and any variation in this flow causes movement of the valves 7 and 8 until the pressure forces are again balanced. There is then provided a corresponding position of the valves 7 and 8 for each position of the valve 23. When the valve 8 is closed on to its seat, it acts on a lever 35 to open a valve 34 to allow the outlet 2 to be drained. The valve 23 may control flow from inlet 1 to chamber 4.
Patent GB-1475597-A (GB)
Title: Electron emissive materials and methods of preparation
IPC: H01L21/306
Filed: 1974-07-18
Abstract: 1475597 Cathode materials and processing INTERNATIONAL STANDARD ELECTRIC CORP 18 July 1974 [23 July 1973] 31853/74 Heading H1D To provide a free standing electron emitter a thin film 12 of gallium aluminium arsenide GaxAl 1-x As (preferably x = 0-0À7) is deposited epitaxially on a substrate 10 of GaAs, followed by a second epitaxial thin layer 14 of GaAs. The substrate 10 is etched through a ring of wax resist by e.g. an equivolume mixture of 30% v/v aqueous solution of H 2 O 2  and 0À28 g/ml solution of NH 4 OH which does not attack Ga x Al 1-x As, the etchant being adjusted according to the value of x. To act as a photocathode the outer surface of GaAs layer 14 is coated with ohmic contact layer 19; light is transmitted through the transparent Ga x Al 1-x As layer 12, electrons being emitted from the far side. Alternatively (Fig. 3 not shown) a further Ga x Al 1-x As layer may be deposited, the central part of the layer 12 being etched away with HCl which does not attack GaAs. The device now emits electrons from the upper face of layer 14 when light is transmitted from below through the added layer of Ga x Al 1-x  As. To act as a secondary electron emitter the structure of Fig. 2 without ohmic contact 19 is further etched with HCl to remove the central part of the Ga x Al 1-x As layer 12. Electrons which fall on either side of the GaAs layer 14 then stimulate secondary emission from one or both scales. Typically the device may be 1-2 cm in diameter with layers 10, 12, 14 of thickness 500, 20-50, 3-8 microns respectively.
Patent GB-440911-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/34
Filed: 1934-11-06
Abstract: 440,911. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Nov. 6, 1934, No. 31859. [Class 39 (i)] A lamp, e.g. a high-pressure or a sodium lamp, is provided with double walls, the space between which is evacuated and provided with a layer of alkali or alkaline earth metal which maintains the vacuum and is so thin that the transmission of light therethrough is not reduced by more than ten per cent. The lamp may be surrounded by a double-walled envelope and the space between the lamp and the envelope may be evacuated and sealed and may be in communication with the evacuated double-walled envelope. The layer may be provided on one of the walls or on a separate member by evaporation of the metal from a wire or by heating an azide during the evacuation. Values of the temperature and of the vapour pressure of the lamp and of the gas pressure in the evacuated space are given.
Patent GB-1045905-A (GB)
Title: A combined wheelbarrow and trailer for a vehicle
IPC: B62D63/06
Filed: 1964-08-06
Abstract: 1,045,905. Wheelbarrows; trailers. J. A. GABRIEL. July 22, 1965 [Aug. 6, 1964; Jan. 18, 1965], Nos. 31958/64 and 2182/65. Heading B7B. A wheelbarrow has a castoring wheel, skid &c. which is free to castor when the barrow is secured to the rear of a towing vehicle by attachments at the ends of the handles but which is prevented from castoring when the wheelbarrow is used as such. The legs are pivoted to the handles so that they may be swung up to an out-of-use position when the barrow is used as a trailer.
Patent GB-1078003-A (GB)
Title: Improvements in ignition systems for internal combustion engines
IPC: F02P3/04
Filed: 1964-08-07
Abstract: 1,078,003. Ignition systems. ROBERT BOSCH G. m. b. H. Aug. 7, 1964 [Aug. 10, 1963], No.32198/64. Heading F1B. An ignition system for an internal combustion engine comprises a transistor 31 with its output path in the primary circuit 12 of the ignition coil, a contact breaker 22 in parallel with the basecollector path of the transistor, for controlling the transistor from its conductive state to its blocked state and a base circuit in parallel with the emitter base path of the transistor, the base circuit comprising an inductance 39 and in series with this inductance a rectifier 40 conductive to current in the same sense as the emitter base path. Preferably a capacitor 42 is provided in parallel with the inductance. It is recommended to arrange a resistor 41 in series with the inductance and rectifier.
Patent GB-1175277-A (GB)
Title: Improvements in or relating to Washing Machines.
Inventor: BRIER ROBERT WILLIAM
IPC: D06F37/30
Filed: 1967-07-13
Abstract: 1,175,277. Washing machine drive. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 July, 1967, No. 32222/67. Heading D1A. A washing machine has a rotatable perforated horizontal drum which is driven at low and high speeds for washing and spin-drying by a two-speed motor 10 through a variable ratio centrifugally-operated expanding V-belt pulley drive and when the drive is in its highspeed condition an auxiliary switch in one or both leads of the low-speed motor supply is open and only closes when the drive has changed to its low speed condition. As shown, the machine tub 2 is suspended by four springs 3, 4 in a cabinet 1, dampers 5, 6 being provided to reduce vibrations. The variable ratio transmission includes the centrifugally operated expanding pulley on the motor shaft driving, through a V-belt 11, a spring controlled expander pulley 12 and which through a coaxial pulley and a belt 13 drives a pulley 14 on the drum shaft. The A.C. motor has an 8-pole capacitor start-capacitor run winding 15 and a 2-pole capacitor start winding 15 with a capacitor 17. The capacitor 17 is controlled by a centrifugal switch comprising contacts on the motor cover which are made or broken by a bush on the motor shaft moved axially in one direction by centrifugal means and returned by resilient means. The positions of belt 11 corresponding to low- and highspeed drive are indicated by dashed and dotdashed lines respectively, Fig. 3. The belt is prevented from assuming the full line position, Fig. 3, when changing from high to low speed as the motor is only energized at low speed when the drum has slowed down so that the auxiliary switch has closed. This switch may be operated by the same mechanism as operates the capacitor-start switch of the highspeed winding. Alternatively, it may be a micro switch either operated by a switch arm carrying an idler pulley engaged by the V-belt 11 during slow running or by part of spring- controlled pulley 12.
Patent GB-341951-A (GB)
Title: Improved process of and apparatus for grinding slag or similar iron-containing material
IPC: B02C17/06
Filed: 1929-10-24
Abstract: 341,951. Ball &c. grinding or crushing mills. AHLMANN, N., 33, Vestergade, Copenhagen. Oct. 24, 1929, No. 32314. [Class 59.] In a process for grinding slag &c. containing iron, the material after a preliminary crushing in a short preliminary grinding chamber, is directed out from the mill and subjected partly to screening and partly to magnetic separation of the iron, whereafter the finely ground material is directed to the fine grinding chamber, and the coarse material is returned to the preliminary grinding chamber. The material from the preliminary grinding chamber 1 passes through the grate 4 to a screening device 5, from which the sifted material passes to the fine grinding chamber 2 and the coarse material and iron to the magnetio separating device 6. The iron is removed in the device 6 and the coarse material returned to the inlet end of the preliminary grinding chamber. The screening devce 5 and magnetic separating device 6 may be interchanged, or the two devices may be built together as one apparatus. The screening device 5 may be disposed along the periphery of the mill and rotate with it, while the magnetic separation is effected in the stationary device 6. The latter may also be disposed along the periphery of the mill and rotate with it.
Patent GB-137290-A (GB)
Title: Folding beds
IPC: A47C17/42
Filed: 1919-12-29
Abstract: 137,290. McAllaster, G. R. Dec. 28, 1918, [Convention date]. Bedding, securing in position. - In a cabinet or other bedstead, the mattress is secured in position by projecting means engaging the under side of the mattress in co-operation with means extending across the upper side. Figs. 1 and 5 show a mattress 10 secured by a transverse knifeedged member 14 together with transverse straps 15, 16, the members 14, 15 and 16 being carried by a plate 11 attached to hooks 12 engaging the angle-iron end 5. In the modification shown in Fig. 6, the hooks 12<a> are bent and the plate 11<a> is arranged below the spring surface 8, the transverse member 14 being then replaced by a number of projections 14a.
Patent GB-618220-A (GB)
Title: Gear finishing
IPC: B23F19/06
Filed: 1946-11-04
Abstract: 618,220. Gear-cutting. NATIONAL BROACH & MACHINE CO. Nov. 4, 1946, No. 32694. Convention date, Feb. 18. [Class 83 (iii)] In a method of finishing a shoulder gear by a gear-like cutter meshing with the gear at crossed axes, the gear and cutter are moved across each other at right angles to the axis of the cutter. As shown in Figs. 1 and 2, the cutter C is moved across the gear G having a shoulder S from the full line position to the dotted line position, so that the centre of the crossed axes moves from a position on the shoulder side of the gear to a position on the opposite side. The machine shown in Fig. 3 comprises stocks 7 for supporting the gear arbor 8 and gear 9 on a vertically-adjustable knee 5, and a saddle 15 which carries a cutter head 16 and is angularly adjustable about a vertical axis to set the crossed-axes relationship of the gear and cutter. The cutter head 16 supports a cutter shaft 17 and cutter 18 driven by an electric motor 19 through a universallyjointed shaft 23 and bevel gearing 25, and is reciprocated horizontally on the saddle by a motor 26 connected by a universally-jointed shaft 28 to a screw 29 in threaded engagement with a bracket 30 on the cutter head. The cutter 18, which is in loose mesh with the gear on one side of its axis, is reciprocated across to the other side to give a cutting stroke, and then returned to the starting position to give a finishing stroke, the reciprocation being controlled by limit switches 31, 32 on the saddle and a dog 33 on the cutter head. Change gearing 20, 27 is provided in the two drives so that, respectively, the speed of rotation of the cutter can be varied according to the diameter and material of the gear, and the speed of reciprocation can be varied inversely to the amount of material to be removed.
Patent GB-1525281-A (GB)
Title: Production of sintered metal parts
IPC: C10M177/00
Filed: 1975-08-05
Abstract: 1525281 Lubricants H L BLACHFORD Ltd 5 Aug 1975 32725/75 Heading C5F [Also in Division C7] A sintered metal part is made from powdered metal by compacting in a mould an intimate mixture of powdered metal and microcapsulated lubricant, to rupture the capsules, release the lubricant and form the mixture into a selfsupporting shaped body, removing the body from the mould, heating to decompose and remove organic material, and sintering. The lubricant is liquid at compacting temperatures and able to wet the powdered metal. The microcapsules have a polymeric solid shell surrounding the lubricant. The mixture may also contain graphite or other solid lubricants.
Patent GB-534507-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/224
Filed: 1939-12-22
Abstract: 534,507. Condensers. SPORING, P. A., and TELEGRAPH CONDENSER CO., Ltd. Dec. 22, 1939, No. 32729. [Class 37] Condenser casing is made in two cup-shaped parts 1 each with metal rim 2 secured together by soldering. Terminals 3 extend from each end and a thread connection for earthing may be made by a centre cap from the condenser to the metal ring held between the soldered rims.
Patent GB-800601-A (GB)
Title: Turbo-superchargers
IPC: F01D25/16
Filed: 1954-11-12
Abstract: 800,601. Turbine - driven superchargers. EBERSPACHER, W., and EBERSPACHER, H., [trading as EBERSPACHER, J.]. Nov. 12, 1954 [Nov. 24, 1953], No. 32931/54. Addition to 684,485. Class 110 (3). The invention of the parent Specification is modified in that the radial bores 4 in the turbineblower shaft 2 which communicate with the axial bore 3 therein are extended by means of radial bores 9 provided in the oil spray disc 8 which is secured to the shaft and is disposed within the lubricant chamber 5. An annular space 6 is provided between the shaft and the inner periphery of the spray disc, the radial bores in the shaft and in the spray disc communicating with the space 6. In a second embodiment, Fig. 2, instead of the axial and radial bores, a longitudinally-extending groove 10 is formed in the periphery of the shaft, the groove commtnicating at one end with atmosphere and at the other with an annular groove 6 formed in the inner periphery of the oil spray disc 8. Radial bores 9 formed in the disc communicate with the annular groove. The longitudinal groove 10 may alternatively communicate with the space behind the blower impeller as indicated at 12.
Patent GB-968759-A (GB)
Title: Nuclear reactor valve
Inventor: BROMLEY DEREK
IPC: G21C19/20
Filed: 1962-08-28
Abstract: 968,759. Fuelling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 26,1963 [Aug. 28, 1962], No. 32937/62. Heading G6C. An arrangement for charging or discharging a reactor as disclosed in Specification 961,084 in which the fuel elements are in the form of spherical pebbles comprises a conduit 11 extending through the reactor vessel 12 and biological shield 13, the conduit having a diameter greater than five times the diameter of a fuel pebble. The pebbles are discharged to an outlet channel 14 having a diameter greater than one but less than 1. 7 times the diameter of a pebble so that single pebbles can flow freely through the channel. The flow of pebbles from a funnel 22 to a funnel 31 is controlled by a pair of circular plates 23, 24 each having an aperture 25, 26 respectively, and pivotally mounted on a common pin 28. The plate 24 is rotated by a motor 16 through a shaft 18 and gearing 19, 29 whereas the plate 25 is oscillated by an eccentric link 30 coupled to the gearing 29. Thus a single pebble is retained in the aperture 25 of the plate 23 until the plate 24 is rotated to align its aperture 26 with the aperture 25 whereupon the pebble drops into the funnel 31 and enters channel 14.
Patent GB-475382-A (GB)
Title: A new or improved roller bed having collecting pockets on either side thereof for material being rolled
IPC: B21B43/00
Filed: 1936-12-02
Abstract: 475,382. Rolling. KRUPP GRUSONWERK AKT.-GES., F. Dec. 2, 1936, No. 33103. Convention date, Feb. 3. [Class 83 (iv)] [Also in Groups XVII and XXX] Groups of rolled bars W are conveyed to bundling troughs 18 and hand dropped into collecting pockets 3 or 3<1> at one or other side of a roller table 1 by conveyer chains 5, 6 or 5<1>, 6<1>, the chains 5 or 5<1> being pivoted up about the shaft 8 by an eccentric 10 whereby the chain 5 rises above the level of the roller table 1 and so conveys bars sideways and on to the other chain 6 which drops them into troughs 18 where an operator counts and bundles them when they can be dropped into the larger pockets 3 and removed from these by a crane. The arm carrying the chain 6 can pivot up about 8 out of the way when lifting bundles out and when lowered again it drops against a stop 19. In a modification, a single central chain conveyer 20, Fig. 3 (not shown), can be reversibly driven to deliver to one or other of the side chain conveyers, which are automatically driven when required from the central conveyer sprocket through a ratchet.
Patent GB-1451885-A (GB)
Title: Image rotating optical system
IPC: G02B5/04
Filed: 1974-07-26
Abstract: 1451885 Image rotating optical system FUJI PHOTO OPTICAL CO Ltd 26 July 1974 [28 July 1973] 33194/74 Heading G2J An image rotating prism 17 is arranged between two lenses 14, 15 of an optical system arranged that a focal point 18 of the system is within the prism and thus a small prism can be used. The optical system may be a zoom lens.
Patent GB-968040-A (GB)
Title: Improvements in or relating to plugs for sealing the bores of pipes
Inventor: JONES JACK
IPC: G21C13/067
Filed: 1962-08-30
Abstract: 968,040. Pipes and tubes. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Aug. 19, 1963 [Aug. 30, 1962], No. 33299/62. Heading F2P. [Also in Division G6] A nuclear reactor standpipe 3 is provided with a seal plug 1 of which the sealing members 5 are protected from the hot coolant fluid in pipe 17 by the shield 6. The latter is formed of discs 7a, 7b shaped to provide cells 9a, 9b which fill with stagnant condensate from the coolant fluid which leaks upwards past the rings 15. The standpipe 3 is cooled by air drawn downwards through the hole 18 in the radiation shield 19. The plug 1 is retained within 3 by the ball latch 20, 21 and may be unlocked by relative displacement of members 40, 23.
Patent GB-1575220-A (GB)
Title: Process for the continuous dyeing of cellulose fibre materials
IPC: D06B19/00
Filed: 1977-08-09
Abstract: The sheet structures which comprise continuous sheets of tops, card slivers and spread-out tows and consist of cellulose fibres or blends thereof with synthetic fibres are, in a continuous process,   a) padded with an aqueous dyeing liquor which is at room temperature, contains at least one sulphur dye reduced to the leuco form and is provided with an addition of a sodium polysulphide (Na2Sx; x = 2-5) which is in aqueous solution and acts as redox buffer, then b) for the purpose of fixing the padded leuco sulphur dye guided through in the plaited state for 1-10 min. at 80-98 DEG C or for 10-60 sec. at 110-220 DEG C, while retaining the moisture applied by the padding, through a heat-fixing chamber which is heated exclusively by hot air, and finally c) subjected to a reoxidation treatment to return the sulphur dye or dyes used to the water-insoluble disulphide form.   Tops, card slivers and fibre webs can be dyed by this process without the need for a special steamer. Since no intermediate drying is necessary, time and energy are saved. While the requirement for reducing agent remains the same, an excellent appearance and good fixing even of deeper dyeings are obtained. The dyeings display good fastness. Since the process is a one-bath process, the procedure is simplified.
Patent GB-735015-A (GB)
Title: Improvements in or relating to tables
Inventor: FOUCOU MARIUS
IPC: A47B3/12
Filed: 1953-12-01
Abstract: 735,015. Tables. AKTIEBOLAGET BRODERNA KJELLSTROM. Dec. 1, 1953, No. 33390/53. Class 52 (3). A table has pairs of legs each comprising U- shaped wire legs 3 connected by limb 5 and having free ends 6 formed as hooks to engage the table top 1<SP>1</SP> which may be a sheet of glass or a tray, the pairs of legs being urged together by a connecting rod 9 which is elastic or non- elastic according to whether the legs are rigid or springy.
Patent GB-179895-A (GB)
Title: Improvements in screw jacks
IPC: B66F3/16
Filed: 1921-12-12
Abstract: 179,895. Schmick Gear & Screw Co., (Assignees of Schmick, H. J.). May 10, 1921, [Convention date]. Jacks. - In a screw jack a comparatively long internally - threaded member 12 is slidably but non-rotatably mounted in a casing 13 and is engaged by the threaded end 17 of a stem 18 which is rotated through bevel-gears by a handle applied to the shaft 21. The screw threads 16 on the inner surface of the member 12 are formed by casting and are mutilated to permit the flow of lubricant past the screw. A pawl 29 mounted in the gear 19 engages ratchet teeth on a plate 23 mounted on the stem 18 and in frictional. engagement with the top 24 of the casing. A ball 26 is placed between the hub 25 of the plate 23 and the top of the stem 18. The load is engaged either by the central part 33 of the top 24 or by a step 34. A removable load-engaging member 35, Fig. 1, may be provided. The detachable handle 22 can be folded.
Patent GB-1094702-A (GB)
Title: Improvements in or relating to apparatus for neutron activation analysis
Inventor: SMITH GEORGE DONALD
IPC: G01T1/15
Filed: 1963-08-23
Abstract: 1,094,702. Electric selective signalling. PLESSEY-U.K. Ltd. Aug. 21, 1964 [Aug. 23, 1963], No. 33455/63. Heading G4H. [Also in Division G1] The charge on a capacitor 6 representative of the dose of neutrons used in activation analysis is measured by discharging the capacitor with pulses from a clock-pulse generator 19 and counting the number of pulses used on a scale connected to lead 20. When the charge on capacitor 6 is reduced to zero, the base potential of transistor 12 is zero, and the latter conducts to terminate transmission of pulses to the sealer. The measurement may be started while capacitor 6 is still being charged, and continues until the capacitor is discharged.
Patent GB-426015-A (GB)
Title: A wheel having feathering vanes adapted for use in air, or water as a motor, or propeller
IPC: B64C11/00
Filed: 1933-11-30
Abstract: 426,015. Paddle-wheels. SPRIGINGS, W. A., 59, Bernard Street, St. Albans, Hertfordshire. Nov. 30, 1933, No. 33605. [Classes 4 and 114] A feathering paddlewheel is arranged with its blades supported at their roots along a whole width by a disc of equal or greater diameter. The blade 3 has a disc 9 at its root with which it may be integral or to which it may be pivotally secured by a pivot 15. The outer periphery of the disc is disposed entirely within recesses in the side rotary carrier frame 2 and this in turn is supported in recesses within the main stationary frame 1 which may be part of the hull of a ship. The means for feathering the blades as by gearing are disposed on the outer peripheries of the discs but axial shafts 14 may be provided and the main drive may similarly be effected by gearing 10 at a distance remote from the axis or by a hollow shaft 7. The spaces between the recesses are provided with glands 11 and the supports therein may take the form of roller bearings 5, 8, &c. Specification 356,285 is referred to.