baber/WOPTO huggingface dataset:
Patent GB-737616-A (GB)
Title: Improvements relating to aluminium and aluminium alloy articles having silicone-resin surface coatings
Inventor: BOYLE SAMUEL CECIL
Filed: 1953-07-03
Abstract: A method of removing silicone-resin coatings or lacquers from aluminium and aluminium alloy articles consists in subjecting the article to molten NaOH or to a molten salt mixture containing NaOH. Preferably, the article is immersed for one minute in a molten mixture of NaOH, NaNO2 and NaNO3 in the proportions respectively of 90:1:9 by weight.  Surplus salt is removed in a water quench and all traces of salt destroyed in hot dilute nitric acid.
Patent GB-228449-A (GB)
Title: Improvements relating to alloys for use in bearings and in machine elements subjected to high steam pressure
IPC: C22C11/00
Filed: 1924-08-05
Abstract: 228,449. Ekert, F. M. Aug. 5, 1924. Alloys containing nickel, copper, tin, and lead are made by combining separately prepared nickel-copper-tin and lead-copper-tin alloys. The lead-copper-tin alloy may be melted at 2000‹ F. and poured into the nickel-copper-tin alloy at 2700‹ F., the surface of the mixture being covered with powdered charcoal or boric acid to prevent oxidation, and casting being effected at as low a temperature as possible. Small proportions of phosphorus, zinc, manganese, and chromium may be added to the nickel-copper-tin alloy to eliminate oxides. In some cases tungsten may be added. The proportions may be as follows : 20-70 per cent of lead, 10-30 per cent of nickel, 10-50 per cent of copper, 1-20 per cent of tin, 1-10 per cent of zinc, and 0.25-5 per cent each of phosphorus, manganese, chromium, and tungsten.
Patent GB-433495-A (GB)
Title: Improvements in or relating to couplings for machine elements, hose and other purposes
IPC: F16L37/10
Filed: 1934-06-25
Abstract: 433,495. Shaft couplings. LAKE, H. P., 44, Mordaunt Street, Brixton, London. June 25, 1934, No. 18693. [Class 80 (ii)] [See also Group XXVIII] A rod or shaft coupling comprises coupling members 12, 13 having peripheral projections 14, 17 which are meshed together by axial movement. Teeth 15, 16 on the projections are interlocked by relative rotation of the members, unlocking being prevented by a wedge-shaped lug 20 on a spring-pressed ring 18 engaging between the projections.
Patent GB-380178-A (GB)
Title: Improvements in and relating to apparatus for extruding rubber and like articles
IPC: B29C48/09
Filed: 1931-06-29
Abstract: 380,178. Extruding rubber tubes &c. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and WILLSHAW, H., Fort Dunlop, Birmingham. June 29, 1931, No. 18703. [Class 87 (ii).] A machine for extruding rubber &c. tubes or other rubber &c. articles comprises a series of extrusion nozzles each provided with its own feeding or forcing means, and each being fed from a supply peculiar to itself. The feeding means may be screws 7 which may be intergeared and driven by a motor. The screws are in communication with independent feed hoppers. Fluid may be circulated through jackets round the nozzles and/or through the interior of the screws to heat or cool these parts. Circulation through the screw takes place through an inner tube 17 with return flow between the tube and the interior of the screw.
Patent GB-428334-A (GB)
Title: Improvements in the production of bituminous surfaces on roads, pavements and the like
IPC: E01C11/00
Filed: 1934-06-25
Abstract: 428,334. Roads. AGTHE, C. A., 12, Mommsenstrasse, Z³rich, Switzerland. June 25, 1934, No. 18715. Convention date, June 24, 1933. [Class 20 (iv)] A process for producing adherent bituminous surfaces on asphalt, cement, and similar hard roads and the like, consists in first coating the road or the like with an oil of high boiling point (that is, boiling at a temperature above 350‹ F.) which has been thickened by dissolving in it pitch, asphalt, a resin, a wax, or a similar substance soluble in oils. Oils suitable for the process include anthracene oil, gas oil, paraffin oil, or mixtures thereof. In order that the thickened oil may adhere well to a moist or wet support, it may be applied in the form of an emulsion or it may contain a small proportion of a watersoluble salt of a fat acid or resin acid. The preparation may be heated before its application to a road and may be applied by means of a spraying machine. In one specific example, 20 kilos of soft coal tar pitch and 10 kilos of stearin pitch are dissolved in 70 kilos of coal tar oil, i.e. oil obtained by distilling coal tar at a temperature above 350‹ F.
Patent GB-476992-A (GB)
Title: Improvements in or relating to electromagnetic clutches
IPC: F16D27/08
Filed: 1937-07-06
Abstract: 476,992. Friction clutches. IGRANIC ELECTRIC CO., Ltd. July 6, 1937, No. 18750. Convention date, July 6, 1936. [Class 80 (ii)] An electromagnetic clutch arranged between axially-spaced driving and driven shafts 1 and 2 comprises a friction disc 10 which is adjustably secured to a ring 48 connected to a hub 7, secured on the end of the shaft 2, through a flexible disc 49 and which is adapted to be clamped between a disc 31 adjustably secured to a field member 8 and a disc 41 secured to an armature member 9. The latter is connected to the member 8 through a flexible disc 35, while the member 8 is connected to a hub 5, secured on the end of the shaft 1, through a flexible disc 44, and is rigidly secured to a member 11 which is supported at its ends by members 15 and 18, bolted to the hubs 5 and 7, through selfaligning roller bearings 12 and 13 so as to permit misalignment of the shafts. The adjustment devices for the discs 10 and 31 each comprises a screw plug 53 and a clamping screw 54. Upon removal of the bolts 17 and 20, which secure the members 15 and 18 to the hubs 5 and 7, the clutch may be removed as a unit,
Patent GB-779898-A (GB)
Title: Method of making bags
IPC: B31B23/00
Filed: 1954-06-25
Abstract: 779,898. Making bags. BINNALL, F. C. June 25, 1954 [June 25, 1953], No. 18764/54. Class 94(2). In an apparatus for making bags from a web of thermoplastic film, the web 11 passes over an idler roll 12 and is folded over on itself by means of a forming shoe 13 and co-opzrating guide fingers 14, which are adjustable to accommodate different widths of web. An inclined roll 25 of resilient material bears against the top of the web to maintain it in correct alignment with the shoe, and edging rolls 30 also assist in maintaining alignment. The lower edge of the web may project outwardly from the upper edge to form a short lip on the finished bag.. Feed rolls 35, 36, 41, 42, 46, 50 and 51 are driven through gearing from a hand crank 37, a length of web equal to the width of two bags being fed to an index line 65 on the plate 47, and the web is transversely cut and sealed by heated members 55, 56, which co-operate with platen rolls 34, 44 to produce two bags simultaneously. The members 55, 56 are operated by a foot stirrup 60. In a modification, Fig. 3 (not shown) both edges of the web are folded inwardly toward the centre of the web which is slit longitudinally to produce four bags simultaneously.
Patent GB-901985-A (GB)
Title: Improvements in or relating to electrical signal translating apparatus
Inventor: GILLETT JOHN BRIAN
IPC: H03K9/08
Filed: 1960-05-27
Abstract: 901,985. Pulse modulation circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. May 17, 1961 [May 27, 1960], No. 18781/60. Class 40 (5). In a circuit for converting input signals of variable durations into output signals of corresponding amplitudes, an amplifier connected as a Miller integrator includes a transfluxor which is controlled so that the beginning of an input signal initiates the linear change in the output voltage of the integrator and the end of the input signal terminates the linear change, the remanence of the transfluxor enabling the steady state amplitude of the output signal to be maintained at substantially the value reached on the termination of the linear change. As shown, a D.C. amplifier TX2, TX3 is connected as a Miller circuit with a feed-back capacitor CM which controls the input stage of the amplifier, transistor TX4. Before each conversion the circuit is reset by a negative-going pulse A, Fig. 2, applied at RL via a normally cut-off transistor TX 1 which energizes a reset winding W1 on a transfluxor TR to saturate the core in the direction B. A small flux in the direction A is provided by a bias winding W2 via resistors R5, R6 and is arranged to be sufficient to bring the transfluxor just out of saturation so that a small transfer of energy may take place between the windings W3, W4 supplied from an A.C. source CL. The alternating current has a frequency several orders higher than the repetition frequency of the input signal applied at IL. The output from winding W4 is rectified at D1 to D4, thus supplying a small negative potential, smoothed by C2, to the base of transistor TX2, causing it to conduct slightly and supply a positive output which keeps transistor TX3 just out of saturation. The component values are such that TX3 operates within the linear part of its characteristic and the voltage variation of its emitter provides the output signal OL. With no output the lead IL is positive and diode D5 conducts, thus preventing any change in the charge of CM. With an input signal on IL, waveform B, diode D5 is backed off and CM starts to charge, causing transistor, TX4 to be switched on and supply an increased current to winding W2 and cause an increased transformer action between windings W3 and W4, waveform CA. The increased negative potential waveform CB, causes transistor TX2 to conduct more heavily and this causes the conductivity of transistor TX3 to be reduced, causing the output voltage to go positive, waveform D, and increase the charge on CM. The output continues to increase linearly until the input signal ceases and lead IL reverts to its positive value, and the remanence of the transfluxor ensures that the output signal D remains substantially at its steady state value until the next re-set pulse is applied at RL.
Patent GB-1069727-A (GB)
Title: Screen filter assembly
IPC: B01D35/26
Filed: 1966-04-29
Abstract: 1,069,727. Dishwashing machines. TAPPAN CO. April 29, 1966 [Oct. 5, 1965], No. 18884/66. Heading A4F. [Also in Division B1] A filter assembly for a dishwashing machine comprises two semi-annular filter units 21, 22, adapted to extend round a recirculating pump 14 and separately removable without dismounting the spray arm 15. Each unit comprises a semi-frustoconical upper screen 23 and a lower screen 24, the screens being polypropylene and having square holes of 0.05 inch side. The two screens are joined at inner and outer peripheries by cooperating resilient tabs 33 and openings 32 (Fig. 4, not shown), and the impervious radially inward walls of lower screens 24 slope up to flanges 43 which rest on shoulder (44) of the pump 14 (Fig. 4). Outlets 39 in screens 24 are of arcuate form (Fig. 1, not shown) and fit in similar guides 47 mounted round recirculating inlets 18 of the pump. Upper screens 23 have handles 26 and large peripheral openings 28, outwards of their joints with lower screens 24, whereby water enters sump 12 below screens 24. Screens 24 have legs 41 resting on floor 11 of the sump. In use, water and solid particles drain towards sump 12, large solids are washed across screens 23 into the sump, water and fine particles pass through screens 23, 24 and are delivered to spray arm 15, the reaction moving the arm. After washing, the water and solids are drained from the machine by another section (16) of the pump 14 through separate openings (17). A heater 19 heats the water and aids drying.
Patent GB-595609-A (GB)
Title: Improvements in and relating to hydraulic brakes or clutch devices
IPC: F16D49/12
Filed: 1944-10-03
Abstract: 595,609. Friction clutches. SELF-CHANGING GEAR CO., Ltd., WILSON, A. G., and MILLER, A. A. Oct. 3, 1944, No. 18900. [Class 80(ii)] [Also in Groups XXIX and XXXIV] The frictional torque on a brake or clutch shoe when it is initially applied reacts against the hydraulic pressure which effects the application so as to increase the hydraulic pressure and thus the application. As shown, brake shoes 2, 3 normally disengaged from the drum 1 by springs 22, 23 and biassed in a counterclockwise direction by springs 28, 29 are applied by pistons in cylinders 4, 5, 6, 7 that are interconnected by passages 51, 52, 53. Pistons 8, 9 are larger in area than pistons 10, 11. Initial application of the shoes is effected by connecting the cylinders to a source of relatively low pressure liquid by an electromagnetically operated valve device 65 which includes a non-return valve. If the drum is rotating clockwise the larger pistons 8, 9 are moved inwards to a limited extent by the frictional torque reaction acting on the shoes the movement being limited due to the volume of liquid displaced by the larger pistons for a given displacement necessitating a greater displacement of the smaller pistons. The hydraulic pressure is thus intensified until the brake locks. The valve device 65 comprises a slidable sleeve valve 67, Fig. 5, controlling supply and exhaust ports 69, 70. A flexible sealing element 36 seats under the action of a spring 37 on a flexible member 38 and extends over the aperture in a fixed member 38a within which the member 38 is slidable. Normally the sleeve valve 67 uncovers the port 70 and an extension or stem 35 of the core 64 is withdrawn through the seal 36 and partly through the member 38 so that the cylinders are connected to an exhaust chamber 71 through the aperture in the seal 36, apertures 41, 40 in the members 38, 38a and port 70. When the magnet is energised the parts occupy the position shown, the sleeve valve 67 having been moved to the right by the core 64. Liquid from the source then flows through ports 69, 39, 40, moves the members 38, 36 to the right and enters the cylinders 4-7, the members 36, 38 acting as a non- return valve to prevent return of the liquid until the withdrawal of the stem 35. Fig. 4 shows a non-return valve device which is separate from the main control valve pressure liquid from which acts on the piston
Patent GB-905524-A (GB)
Title: Improvements in or relating to methods of sealing glass exhaust tube of vessels
IPC: H01J9/40
Filed: 1959-06-03
Abstract: 905,524. Glass seals. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 3, 1959 [June 6, 1958], No. 18964/59. Class 56. The tube 4, connected to a container 7 enclosing a gas at a pressure greater than atmospheric is arranged vertically, contains an internal glaze of low melting point glass and is sealed by heating so that this glass runs down within the tube as a thickening ring 6 to close the tube at 8. This may be done by moving a burner 10 slowly downwards from a position I to a position II. The sealing glass is chosen so that the tube is not softened. Two examples of possible compositions for the tube are given. One consists predominantly of oxides of Si, Pb with smaller quantities of oxides of Na, K, Al, Sb and Mn. Another consists predominantly of oxides of Si and Na with smaller quantities of Ca, K, Mg, Al. The sealing glass consists of lead oxide with smaller quantities of oxides of B and Zn.
Patent GB-1533682-A (GB)
Title: Multi-player backgammon
IPC: A63F3/00
Filed: 1977-05-06
Abstract: 1533682 Backgammon R M THOMAS and R E THOMAS 6 May 1977 [12 May 1976] 19058/77 Heading A6H A back-gammon-type board has forty-eight playing points in eight contiguous boards of six playing points each, the boards being arranged in pairs, and there being four equal sets of points, each set having different surface characteristics and three or four sets of pieces, each set corresponding with a different set of points.
Patent GB-571093-A (GB)
Title: Improvements in or relating to electric soldering irons
IPC: B23K3/03
Filed: 1943-11-16
Abstract: 571,093. Soldering. STANDARD TELEPHONES & CABLES, Ltd., (trading as STANELCO PRODUCTS), and HANDLEY, J. Nov. 16, 1943, No. 19096. [Class 83 (iv)] [Also in Group XI] A soldering-tool comprises inner and outer metal tubes 2, 6 spaced apart by insulating members 7, 13. Split ferrules 3, 17 grip a carbon rod 1 and thrust rod 4 respectively, the latter being fixed to an insulating handle 5 which is threaded over an insulating sleeve 11, so that rotation of the handle 5 causes axial movement of the rod 4 and carbon 1. A conical sheath 8 and cover 9 are slidable axially and are pressed forward by spring 10 so that the end of the carbon is enclosed by the sheath. Electrical connections are provided to the nozzle and sheath. In use, the tool is pressed against the work so that the sheath 8 is pressed back and carbon and sheath make contact with the work so that current passes from one to the other through the work.
Patent GB-487287-A (GB)
Title: Grinding wheel
IPC: B24D3/34
Filed: 1937-07-12
Abstract: A grinding wheel is made from a mix comprising abrasive grains, an organic bond and, as a filler, not less than 5 per cent of a simple alkali metal salt of an oxygen-containing acid, the 5 per cent being calculated by volume on the bond plus filler. Preferably, between 10 and 60 per cent is used.  The salt may be sodium or potassium sulphate, borate or phosphate, e.g. sodium meta-phosphate, sodium metaborate or anhydrous borax, or sodium nitrate.  The abrasive grain may be fused alumina, silicon carbide, emery, corundum, diamond, garnet or quartz.  The bond may be phenolaldehyde or alkyd resin, shellac or rubber.ALSO:A grinding-wheel is made from a mix comprising abrasive grains, an organic bond and, as a filler, not less than 5 per cent of a simple alkali metal salt of an oxygen-containing acid, the 5 per cent being calculated by volume on the bond plus filler. Preferably between 10 and 60 per cent is used.  The salt may be sodium or potassium sulphate, borate or phosphate, e.g. sodium meta-phosphate, sodium metaborate or anhydrous borax, or sodium nitrate.  The abrasive grain may be fused alumina, silicon carbide, emery, corundum, diamond, garnet or quartz.  The bond may be phenolaldehyde or alkyd resin, shellac or rubber.
Patent GB-153646-A (GB)
Title: Improvements in processes of reclaiming rubber
IPC: C08J11/18
Filed: 1919-08-06
Abstract: 153,646. Young, J., and Benner, W. W. Aug. 6, 1919. Devulcanizing rubber. - Vulcanized rubber is devulcanized by simultaneous treatment with a benzene hydrocarbon, such as 10 per cent of xylol or one of its homologues and a carbocyclic amido compound, such as 2¢ per cent of aniline or one of its homologues in the presence of a substance capable of absorbing or combining with sulphur, such as a hydrate of an alkali metal. The treatment is conducted in a digester in which the temperature corresponds with a steam pressure of from 60-150 lb. Specification 28167/13 is referred to.
Patent GB-286543-A (GB)
Title: A slate pencil holder
IPC: B43K19/14
Filed: 1927-07-21
Abstract: 286,543. Schneider, V. July 21, 1927. Pencil holders, sharpeners, and point-protectors.-A holder for slate pencils is formed in one or more parts 1, 2 connected together by a sleeve 3, the parts being bored for the reception of the pencil. One part 2 may serve as a point-protector when the device is not in use. The pencil is held against movement during use by means of a rubber sleeve 6, and the forward end of the part 1 of the holder may be rendered resilient by means of slits. A file 9 may be provided for sharpening purposes.
Patent GB-177455-A (GB)
Title: Improvements in and relating to heating apparatus to use in connection with open grate fires
IPC: F24B1/188
Filed: 1921-07-19
Abstract: 177,455. Gautier, C. M. July 19, 1921. Air-heating fittings; joints and connections.- An air-heater for use with open fire-places of the kind comprising a box-like structure fitted with fire-tubes and air inlet and outlet pipes, is secured to the rear of the fire-place and to the canopy, and the air-admission tubes are detachably secured to the rear of the heating-box. The structure a, Figs. 2 and 3, is fitted with firetubes a' and is traversed by a number of passages. for the air, which enters by the tubes e and is discharged in front of the canopy b through the mouth a<3>. It is attached to the rear of the fireplace b<1> by brackets d, and is supported at the front by two plates c, c' secured to the structure a by lateral flanges c<3>, and connected together by lap joints c<2>, Figs. 9 and 12. The upper plate c is secured to the canopy b. The flanged ends e<1> of the tubes e are engaged by pairs of brackets f, Figs. 17 and 18, carrying flanges f<1> and positioned by angle-plates g against the air-inlet. passages of the structure a.
Patent GB-578354-A (GB)
Title: Device for collecting dirt and other solid matter from underwater floors
IPC: E04H4/16
Filed: 1944-10-10
Abstract: 578,354. Cleaning building floors. DUNNET, D. Oct. 10, 1944, Nos. 19425/44 and 8351/45. [Class 138 (i)] A device for cleaning and collecting, dirt from the floors of swimming pools &c. without emptying, comprises a sweeper adapted to be moved over the floors by means of a pole 43 having a universal connection to the casing 1 of the sweeper, or by means of two ropes operated from the sides of the pool, and the dirt is collected in a detachable filter bag 26 arranged in the rear part of the casing which is fitted with a pivoted lid 19 to permit of removal of the bag. The bag chamber is open at the bottom and rear, the openings being covered by metal grilles 25, 35, which together with grill 23 in the lid permit of the circulation of water from the bag 26 after removal of the dirt. The sweeper is fitted with a pair of forward rolls 10 the axes of which form a V with the apex at the rear, the rolls being formed of alternate large and small rubber discs, or being formed with grooves. The rolls 10 form currents of sludge which are directed past a pivoted flap 32 to the mouth 28 of the bag 26, and, dirt is directed to the bag by means of a scraper 31 which engages the bottom of the pool. A vane 38 attached to the lid 19 acts to suck the liquid into the bag. On reversal of the sweeper the flap 32 closes against a stop 32a, and a flap 36 closes the chamber at the rear of the bag through which water can normally escape which has passed through the grille 35. The lid is normally held by a wing nut 21. The scraper 31 may be made in segments. The bag 26 may be replaced by a flat corrugated, or other filter screen attached to a dirt-collecting tray or box arranged so that the water flows upwardly through the screen. Or the water may be given a quick turn so as to deposit the heavier particles of dirt in the bottom of'the tray or box.
Patent GB-199272-A (GB)
Title: Improvements in or relating to anti-splash guard devices for motor or other road vehicles
IPC: B62D25/18
Filed: 1922-07-14
Abstract: 199,272. Winn, A. E., and Winn, W. C., (trading as Winn & Son), Hudson, J., and Baker, A. July 14, 1922. Lateral-splash guards.-A splash guard comprising a rigid part 1 and ,a flexible part 2 of chain mesh &c. mounted on a rod 15 vertically adjustable in lugs 14 on the rigid part 1, is capable of making a complete revolution around a bolt 5 which holds a bearing on the part 1 ,against a conical bearing on a bracket 4 which may be attached to the axle as described in Specifications 166,683 and 185,786. Rubber buffers 13 held in lugs 14 contact with obstructions and assist the turning movement. A spring 6 on the bolt 5 holds the guard in normal position by a coacting rib and slot 9 and also allows motion at rightangles to the wheel, the holes through which the bolt 5 passes being elongated. The screen 2 is surrounded by a chain 17 keeping it laterally rigid and it is supported by rings separated by pieces of tube. Spring means 12 may prevent undue swing. Baffles are provider at the top of part 1. A dust and lubricating cap may be provided over parts 6 &c. Rollers as described in Specification 185,786 may be provided on the ends of screen 1.