baber/WOPTO huggingface dataset:
Patent GB-430429-A (GB)
Title: Improvements in or relating to control devices for polyphase arc converters
IPC: H01T11/00
Filed: 1933-12-19
Abstract: 430,429. Converting. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, GARDINER, H. W. B., and THOMPSON, W. G., c/o General Electric Co., Wembley, Middlesex. Dec. 19, 1933, No. 35737. [Class 38 (ii)] [See also Group XXXVII] In a polyphase converter of the kind in which arcs are established in succession between a plurality of main electrodes 7, 8 by applying starting potentials to auxiliary electrodes 6, the starting potentials are derived from the A.C. source associated with the converter through a frequency multiplying transformer associated with a distributer whereby successive impulses of the increased frequency are distributed in turn to the auxiliary electrodes. In the arrangement shown impulses of three times the frequency of the A.C. source 1 are derived from an open delta secondary on a saturating transformer 36 and supplied to a step-up transformer 4 associated with the distributer 3 driven by a synchronous motor 2 fed from the source 1. The stator of the motor and one winding of the transformer 36 are rotatably mounted and arranged for simultaneous angular displacement to permit adjustment of the timing of the impulses for regulation of the converter. The transformer 4 may be replaced by an induction coil having an interrupter driven synchronously with the supply frequency. The interrupter comprises pairs of contacts I, II, III, Fig. 3, the pairs being arranged in series and the individual elements of each pair being in parallel. A cam 34 operates in succession one element of each pair, and another cam 35 mounted behind the first operates in succession the other element of each pair. The arrangement is such that first one element of a pair opens and then proceeds to close and when it is almost closed the other element in parallel opens to break the circuit which is then immediately reclosed by the first element. Thus a rapid opening and closing of the circuit is obtained for a relatively slow operation of each set of contacts. Specifications 429,060 are referred to.
Patent GB-1061812-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/18
Filed: 1962-09-20
Abstract: In a method of manufacturing flat glass during which the glass is supported on and travels over a bath of molten metal above which a plenum of protective atmosphere is maintained, there is provided on the surface of the molten bath not covered by the glass, at least at the outlet end of the bath, a layer of a particulate material which does not react with the molten metal or the glass.  The particulate material may comprise flakes of graphite, or alumina, silica or kieselguhr, sodium or potassium chloride, or a high melting point glass. When graphite is so employed it may be washed down through the bath with the glass and out of the tank, and needs, therefore, to be continually replaced. This is carried out through a special hatch which has a plenum of inert gas therein.
Patent GB-381413-A (GB)
Title: A process for casting alloys and castings produced thereby
IPC: B22D13/08
Filed: 1931-12-29
Abstract: Alloys consisting of (1) iron with 4,7-34,5 per cent of aluminium; (2) copper with 5,2 or 7.98 per cent of tin, 3,8 or 2,1 per cent of lead, and 5,55 or 4,8 per cent of zinc for use as bearing metal; (3) copper with 14,4 per cent of lead, or 19 per cent of lead and 28 per cent of iron; and other alloys of specified known compositions, may be cast by the processes described in Specifications 362,035, 363,142, and 380,905, [all in Group XXII].
Patent GB-1069815-A (GB)
Title: Carding apparatus
IPC: D01G23/06
Filed: 1964-09-03
Abstract: A carding machine set has variable speed drive means for the feeding means of the first card, variable speed drive means for the doffer of the final card, constant speed drive means for the main cylinders of the cards, and means for adjusting the two variable speed means during operation of the cards.  As described there are two cards, and motors (6) and (14) (Fig. 1 not shown) which are interconnected by an "electric shaft," and preferably rotate in synchronism at least during the running up and running down period, respectively drive the licker-in, cylinder, and comb of the first card, and the cylinder, comb and rubbing condenser of the final card.  Motor (6) also drives through variable transmission (23) the frequency control for the feed hopper and the drawing apparatus, and through variable transmission (27) the doffer and the web squeezer at the exit of the first card, and the apparatus for feeding the web into the second card.  Motor 14 drives through variable transmission (37) the doffer of the final card, the tape condenser, and the bobbins winding station.  In operation the weight of either the web produced by the second card or one or more condenser rovings is continuously sensed and used to control through an electric circuit transmission (23) and (37). Transmission (27) may be connected to transmission (23) such that the web thickness between the cards is kept constant.
Patent GB-1157675-A (GB)
Title: Production of Boric Oxide
IPC: C01B35/06
Filed: 1966-08-12
Abstract: 1,157,675. Boric oxide. UNITED STATES BORAX & CHEMICAL CORP. 12 Aug., 1966 [22 June, 1966], No. 36276/66. Addition to 1,133,434. Heading C1A. Vitreous boron oxide is produced when a feed mixture formed by mixing sulphuric acid of at least 78% by wt. H 2 50 4  concentration, and an alkali metal or alkaline earth metal borate or mixtures thereof is heated at a temperature in excess of 1090‹ C. to form a molten reaction having two layers which are separated from each other while molten, and that layer containing the boric oxide cooled to give the desired product. A preferred heating temperature is 1200‹ C., and preferred borates are any sodium borate, e.g. Na 2 B 4 O 7 SH 2 O. The process is convenient for use as a continuous process when the mixture is continuously fed to a heating zone and the two molten layers are continuously separated, the boron-oxide containing layer being the upper one, preferably by means of a weir or dam situate in the bottom of the furnace, the separated layers coded and the desired product and by-product obtained. The boron oxide layer may be subject to further heating to remove impurities prior to cooling and solidification.
Patent GB-1168527-A (GB)
Title: Improvements in or relating to Pumps for Gaseous Media
IPC: F04B27/04
Filed: 1967-08-08
Abstract: 1,168,527. Pistons. ZEFEX Inc. 8 Aug., 1967 [11 Aug., 1966], No. 36296/67. Heading F2T. [Also in Division F1] A reciprocating compressor has a piston 11 with a recessed skirt into which is fitted a bearing sleeve of P.T.F.E. To enable the sleeve to be fitted to the piston and to improve heat dissipation during operation, the sleeve is provided with slits 51 extending from each end. Piston rings 29 also of P.T.F.E. are provided.
Patent GB-1379402-A (GB)
Title: Assembly of tubes in fired heaters
IPC: B21D53/08
Filed: 1971-08-02
Abstract: 1379402 Assembling fired heaters FOSTER WHEELER Ltd 1 Nov 1972 [2 Aug 1971] 36300/71 Heading B3A A method of assembling horizontal runs of tubes 20 in a convection bank of a heater comprises supporting each tube in turn at a number of locations spaced along its length, raising the tube to the level at which it is to be positioned in the heater, advancing the tube into position in the heater, the supports moving with the tube and supporting that part of the tube still outside the heater as it is advanced. Hair-pin tubes are supported in slings 34 carried by shackles 32 on trolleys 28, which run inside a slit box girder 24. The girder forms part of a device 22, which is lifted to the required height by a crane (42), Fig. 1 (not shown), and is manoeuvred into position with the free ends of the tube 20 inserted in holes 50 in a side supporting wall 52. The heater is provided with a number of intermediate support plates 60 and the tube is advanced through holes in the plates 60, the slings 34 being removed as each trolley 28 reaches the end of its travel in the girder 24. The hairpin tubes are joined by U-bends (not shown) to form a serpentine convection tube bank in the heater.
Patent GB-400023-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/36
Filed: 1932-12-24
Abstract: 400,023. Vacuum - cleaner dust bags. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Inventia Patent - Verwertungs - Ges. ; 10, Herrenacker, Schaffhausen, Switzerland.) Dec. 24, 1932, Nos. 36563 and 36564. Convention date, Dec. 24, 1931. [Class 8 (ii).] A vacuum cleaner comprises a dust-collecting filter 13 and a non- collecting filter 15 forming together a closed chamber. Normally air enters the filter from the hose socket 19 through a valve passage 21 and an opening 18, the cleaned air passing off in part through the bag to the fan and in part through the cover filter 15, apertures in a ring 14 supporting the bag, and the annular space 32 around the bag, to the fan. By rotating the valve, the air from the hose may be passed through an aperture 22, Fig. 3, in the wall plate 16 and thence reversely through the cover filter. In a third valve position, clean air is drawn in through the apertures 24, 22 in the top of the cleaner and the wall plate to clean the filter. Fig. 7 shows a modification in which the dusty air is drawn in from the suction conduit 19 between the bag 13 and cover filter 15, the air which has traversed the cover filter flowing through a conduit 34 to the fan; air for cleaning the filter enters by a valved passage 36. The Specification as open to inspection under Sect. 91 comprises also a cleaner having two filter bags 41, 42, Fig. 8 (Cancelled), enclosed in a chamber to which the suction hose connection 19 opens. A space 46 between the fan and the chamber is open by holes 51 to the atmosphere and provided with a valve 47 which allows the fan to draw air through both bags depositing dust on their exteriors, or to draw air through the holes 51 through one bag outwards, thus cleaning the bag. This subject-matter does not appear in the Specification as accepted.
Patent GB-1194077-A (GB)
Title: Push-Button Operated Overload-Current Switch with Thermal Trip
IPC: H01H73/30
Filed: 1968-07-31
Abstract: 1,194,077. Automatic circuit-breakers. ELLENBERGER & POENSGEN G.m.b.H. 31 July, 1968 [2 Aug., 1967], No. 36579/68. Heading H1N. In a trip-free overload-responsive circuitbreaker of the kind having an angled bridging contact 19 freely pivoted on an axially-movable control member 28, a bi-metallic strip 9 with a contact plate 17 which latches the contact 19 in the closed position with the contacts 24, 23, 19, 17 closed, and a spring 35 to ensure trip-free release of the bridging contact, the main compression spring 34 acting on the control member 28 has one end located in a hole 33 in the member 28 and its other end surrounding the adjusting screw 12 which secures the bimetallic strip 9 to the base 14 of the circuitbreaker. The spring 35 is a U-shaped wire spring. A push-button 4, the control rod 21 and the member 28 are formed in one piece of a plastics material, e.g. heat-resistant polyamide.
Patent GB-1422478-A (GB)
Title: Method of producing copper-plated steel wire
IPC: B21C23/22
Filed: 1974-08-20
Abstract: 1422478 Making copper plated steel wire KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 20 Aug 1974 [24 Jan 1974] 36582/74 Heading B3A A method of producing copper plated steel wire comprises bending a longitudinally fed copper strip about a continuously advanced steel wire, welding the longitudinal edges of the strip to form a tube having an inside diameter greater than the outside diameter of the wire, drawing the welded tube on to the steel wire to form a composite wire, heating the composite to at least 850 C., and reducing the crosssection of the composite by at least 10% during the heating. The welding comprises inert gas protected electric arc welding. In the embodiment a copper strip 1 is run from a reel to a brushing device and then to welding apparatus 4. The tube 5 formed after welding is drawn closely over the steel wire 3 by a drawing device 6 and the sheathed steel wire then passes to a pulley draw-off device 8 for maintaining a constant draw-off speed. A draw-off device 9 maintains tension in the sheathed wire which is passed to an annealing unit 10 where it is heated to at least 850 C. The sheathed wire is then reduced by at least 10%, preferably 20%, in cross-section using driven rollers 11. A diffusion layer is formed between the copper and steel due to the heating and rolling operation. The reduced wire composite is then cooled in a unit 13 and wound on to a storage drum 14. The steel wire may be pickled, neutralized, and dried before the copper strip is bent around it. Alternatively, the wire may be peeled with rotating cutters, sand blasted, or scoured with brushes. The copper strip may also be pickled, neutralized, and dried before bending it around the steel wire.
Patent GB-763163-A (GB)
Title: Improvements in hydraulically operated ingot-shearing machines
IPC: B23D15/02
Filed: 1954-12-17
Abstract: 763,163. Shearing. SCHLOEMANN AKT.- GES. Dec. 17, 1954 [Feb. 19, 1954], No. 36599/54. Class 83 (4). An hydraulically-actuated machine for shearing ingots, in which the upper and lower blade-holders are movable in vertical guides and effect the cut by hydraulic means, the upper blade-holder being clampable in a predetermined position, is characterized in that when the upper bladeholder is clamped in its uppermost position, the lower blade-holder can be raised clear of the roller track or the like on which it has been supported. As shown, the lower blade-holder 1 is raised by a predetermined amount a to lift the ingot 15 from its roller tracks 16 into the position 15a. Fig. 2, by means of an hydraulic cylinder 14 co-operating with a fixed plunger 13. The lower blade-holder 1 is suspended from two tension rods 2, the upper ends of which are attached to a cross-bar 3 to which is secured an hydraulic cylinder 4 in which is movable a plunger 5 connected to the upper blade-holder 6. The blade-holder 6 has secured thereto plungers 8 movable in fixed cylinders 9. When liquid under pressure is admitted to the cylinder 4 the blade-holder 6 is caused to move towards the blade-holder 1 to effect the cut. The upward movement of the blade-holder 6 and the downward movement of the cross-bar 3 are limited by distance pieces 11. The machine is so controlled that the cutting movement is blocked so long as the lower blade-holder is not raised. An adjustable throttle valve may be interposed in the discharge pipe from the cylinder 14 to cushion the descent of the lower blade-holder.
Patent GB-1394972-A (GB)
Title: Engine
IPC: F02B53/00
Filed: 1973-08-01
Abstract: 1394972 Rotary positive displacement  machines BENWILCO Inc 1 Aug 1973 [25 Sept 1972] 36605/73 Heading F1F A rotary piston I. C. engine comprises a clyindrical rotor 26 in a cylindrical chamber, sinuous peripheral channels 28, 29 in the rotor defining working chambers on either side of annular plates 36, 37, secured to the housing, and gaps in the plates 36, 37 receiving pivoted vanes (51) spanning the channels to separate successive working chambers, inlets and exhaust ports communicating with channels 28 and 29 respectively, and passages 66, (67), Fig. 9 interconnecting the channels adjacent the vanes and functioning as combustion chambers. In operation, combustible mixture, e.g. from a carburetter, is drawn into a cooling chamber in channel 28 and compressed, the compressed mixture then entering passage 66 when port 68 is uncovered by the rotor and being ignited after closure of port 68. Port 69 is then opened by the rotor and the expanding gases enter a cooling chamber in channel 29 to effect an expansion phase reacting against a vane and the channel wall to rotate the rotor. The exhaust gases are then forced out through the exhaust port. Alternatively compression-ignition operation may be used. Cooling is effected by fans 84 drawing air through passages 82, 83, and by finned end plates on the housing. (For Figures see next page)
Patent GB-617319-A (GB)
Title: Improvements in and relating to automatic control systems, for high frequency dielectric electrical heating installations
IPC: H05B6/50
Filed: 1946-12-11
Abstract: 617,319. Control systems for high-frequency heating apparatus. BRIGGS, G. Dec. 11, 1946, No. 36636. [Class.38 (iv)] In a high-frequency dielectric heating installation, voltage changes derived from current changes in the work or other circuit, due to dielectric variations in the work-piece as heating progresses, are utilized to fire a discharge tube upon the work-piece reaching a desired temperature, the discharge current operating a relay which de-energizes the work circuit. The relay may be of the electromagnetic type and may de-energize the work circuit by interrupting the high-tension feed to the oscillator. Alternatively, thyratron relays, arranged to become blocked by the voltage changes derived from the work circuit, may be used as rectifiers in the high-tension supply. The voltage changes for operating the discharge tube, which may be of the controlled, or uncontrolled, gas-filled type, may be obtained from the work circuit itself, the oscillator output circuit, or the main A.C. feed to the oscillator. In the arrangement shown, an oscillator 10, 13, feeding a work circuit 12, is energized from an A.C. source 100 over a current transformer 114, 115 and normally open contacts 109 of a relay 107 having further contacts 111 for operating an indicator lamp 112. Relay 107 is controlled by contacts 106 of a double-wound relay 104, 105 having holding contacts 113, the windings 104, 105 being in opposition and energizable, respectively, from the source 100 over rectifier 102 and from the secondary winding 115 of the current transformer over rectifier 116, resistances 119, 120, condenser 117 and gas discharge tube 118. To initiate a heating operation, a switch 104a, shunting contacts 113, is closed, thereby discharging through winding 104 a condenser 101 previously charged over rectifier 102. The relay picks up and locks in over contacts 113, closure of its contacts 106 energizing relay 107 over a thermal delay switch 108 to complete the supply circuit to the oscillator. As the work heats up, the work circuit becomes more nearly in tune with the oscillator and the increasing current through the current transformer charges condenser 117 to a voltage sufficient to break down tube 118. The condenser thereupon discharges through winding 105 and causes relay 104, 105 to drop out, thereby de-energizing relay 107 and disconnecting the oscillator from the source 100. In event of failure of relay 104, 105, disconnection of the oscillator is brought about, at a high current intake and work temperature, by a condenser-gas discharge tube-relay combination 121-125 energized from the secondary of the current transformer. In modified arrangements the discharge tube 118 is triggered by the rectified H.F. voltage across the work circuit, or a circuit coupled thereto. Specification 617,245 is referred to in the Provisional Specification.
Patent GB-1515403-A (GB)
Title: Process for producing irregular colour effects
IPC: D06B11/00
Filed: 1975-09-05
Abstract: 1515403 Dyeing textiles to produce irregular colour effects HOECHST AG 5 Sept 1975 [5 Sept 1974] 36702/75 Heading D1B Irregular colour effects are produced on textile materials by applying a layer of bubbles of an aqueous surfactant containing dyestuff solution, the solution having a viscosity in the range of 10 to 110 mPa.s. and the bubbles having a diameter of at least 10mm, the bubbles then being allowed to burst. The bubbles may be obtained by passing air or an inert gas through the dyestuff solution via a perforated tube situated below the surface of the dye solution. The surfactant may be a soap, sodium salts of sulphonated oils, sulphonated paraffins and olefins having from 12 to 18 carbon atoms, fatty alcohol sulphonates having 12 to 18 carbon atoms, alkyl phenol polyglycol ethers, fatty alcohol and fatty acid polyglycol ethers having an average content of 7 to 30 ethylene oxide units per molecule. Multicolour effects are obtained by applying, two or more solutions or dyestuffs of different shades simultaneously or successively. Cotton, spun rayon, polyamide and polyacrylonitrile textile material may be dyed using reactive and basic dyes.
Patent GB-1281233-A (GB)
Title: Improved method and apparatus for incorporating additives in a melt
Inventor: MOORE W H
IPC: C21C7/00
Filed: 1969-07-22
Abstract: 1281233 Metallurgical ladles W H MOORE and H H KESSLER 22 July 1969 [14 Jan 1969] 36708/69 Heading F4B [Also in Division C7] Apparatus for introducing additives into molten metal comprised a refractory lined vessel, fitted with a gas-tight cover having a controllable gas outlet therein, whereby a positive gas pressure can be maintained above the melt, and a means for introducing additives into the melt, the vessel having a porous refractory plug below the surface of the melt for the introduction of an inert or non-reactive gas. A mechanical stirrer may also be provided and the melt may be continuously introduced and removed from the vessel.
Patent GB-339778-A (GB)
Title: Improvements in or relating to windlasses or winding gear
IPC: B66D1/20
Filed: 1929-12-03
Abstract: 339,778. Barbaudy, J. F. J. Dec. 3, 1929. No Patent granted (Sealing fee not paid). Drum or barrel winding machines; driving-gear. -The drum 15 of a windlass for tree-felling is rotated by an internal combustion motor 1 acting through a clutch and change-speed gear mechanism and two trains of pawls and ratchet wheels in series, the primary train consisting of pawls 6 mounted on carriers reciprocated alternately by eccentrics 4 so as to rotate the ratchet wheels 8. and the secondary train consisting of pawls 13 mounted on carriers reciprocated alternately by eccentrics 10 on the shaft of the ratchet wheels 8 so as to rotate the ratchet wheels 14, to the shaft of which the winding drum 15 is keyed. Both pairs of ratchet wheels are prevented from slipping back by check pawls 11, 16.
Patent GB-1368624-A (GB)
Title: Pad for multi container pack
IPC: B65D71/00
Filed: 1972-08-02
Abstract: 1368624 Multi-container package SMEDLEY HP FOODS Ltd 2 Aug 1972 [7 Aug 1971] 37222/71 Heading B8C A pad 10 of stiff, but foldable sheet material adapted to rest upon the tops of containers, e.g. bottles, in a container pack, is provided with a pair of collars 14 hinged to and extending outwardly of the pad and adapted to fold outwardly of the plane of the pad and embrace containers vertically adjacent the collars on which the pad is adapted to rest, the collars at least partly surrounding diagonally opposite corners of the pad to form outward extensions of substantially looped form hinged to and co-planar with the pad. As shown, in which the containers are assembled in a tray 20 the pad is made from a blank of, e.g. cartonboard, and is provided with protrusions 11, 11a corresponding in number to the tops of containers. In another form, Figs. 3 and 4 (not shown) one end of each collar is severed from the blank to form a hook. In both arrangements, the assembled containers and pad may be shrink-wrapped.
Patent GB-835488-A (GB)
Title: Improvements in inflatable fabric and method of making the same
IPC: D03D1/02
Filed: 1957-11-29
Abstract: 835.488. Inflatable fabrics. UNITED STATES RUBBER CO. Nov. 29, 1957 [Jan. 22, 1957], No. 37236/57. Class 142(4) [Also in Group XXXIII] . A fabric to be coated with rubber for making inflatable articles consists of two plies 11, 12 woven from shrinkable warp and non- shrinkable weft and interconnected by warp threads 13 floating between the plies and interwoven with the upper and lower plies alternately. When the fabric is shrunk, the threads 13 allow the plies to be separate as shown. The shrinkable yarns may be polyvinyl chloride monofil or multifilament yarns or may be plied yarns as described in Specification 661,074. The non-shrinkable yarns may be nylon or cotton.