baber/WOPTO huggingface dataset:
Patent GB-855138-A (GB)
Title: mprovements in or relating to methods of and apparatus for the electrolytic engraving of printing elements
IPC: C25F3/02
Filed: 1957-03-06
Abstract: 855,138. Electrolytic engraving. S.E.P.A.G. SOC. D'ETUDES POUR LE PERFECTIONNEMENT DES ARTS GRAPHIQUES. March 6, 1957 [March 8, 1956], No. 7463/57. Class 41 A metal printing plate is engraved electrolytically by immersing it as anode in an aqueous solution of a salt of an organic acid which is continuously agitated and passing a periodically interrupted direct current through those parts of the plate which are not covered by an insulating layer. Preferably agitation is effected by blowing air under pressure through perforated pipes on the bottom of the electrolytic tank and a timeswitch is provided for periodically interrupting the electrolysing direct current. Typically the plate to be engraved is of zinc, the cathode is a perforated plate, and the electrolyte is an aqueous solution of sodium citrate or ferrous ammonium citrate to which may be triethanolamine and a small quantity of gelatin. The tank 17, a compressor 37 for the agitating air supply, an air filter 25, a heater (not shown) for the tank, ventilation fan 26 and a transformer-rectifier supply for the electrolysing current may be in a single housing to which access is afforded by hinged lids 16 and side doors (not shown). Air control, temperature and current variations are controlled and indicated by devices on the control panel 18.
Patent GB-1484833-A (GB)
Title: Welding electrical contact members
IPC: H01H11/04
Filed: 1976-02-26
Abstract: 1484833 Welding by pressure; making electrical contacts INTERNATIONAL STANDARD ELECTRIC CORP 26 Feb 1976 [4 March 1975] 07620/76 Headings B3R and B3A In a method of punching electrical contacts 5 from a metal strip 4 and welding them to a metal workpiece (e.g. a contact spring 20), the contacts are punched and forced through a die 15 by a punch 14 and held, by a clamp 17, in abutting relationship with a first welding electrode 12 (e.g. a disc electrode), the punch is retracted and the first electrode, the contact and the clamp are then aligned with a second welding electrode 19 which presses the workpiece which has been fed between the second electrode and the surface of the contact having the punching lever (8, Fig. 1, not shown), against the contact to effect welding when current is supplied. In apparatus for carrying out the method, the clamp may partially surround the disc shaped first electrode, the clamp and the first electrode being movable along the axis of the disc to align with the second electrode (Figs. 6-9, not shown), or, as shown, the clamp may have a jaw 18 adajcent each flat surface of the first electrode, the clamp and the electrode being rotatable about the axis of the disc into alignment with the second electrode (dotted lines, Fig. 4). To provide for uniformity of first electrode wear, in Figs. 6-9 said first electrode is rotated by the width of a contact between welds and is also arranged to be axially adjusted so that when it has completed one revolution it has been axially displaced by one contact length, or, in the embodiment shown, the first electrode rotational angle is so chosen that after a number of welds it is displaced from its original position by a contact width.  To reduce wastage, one edge of the metal strip 4 may simultaneously form the limit of the narrow front of the contact 5 (Figs. 6-9, not shown).
Patent GB-1031214-A (GB)
Title: A bearing for a rotatable shaft of a venetian blind
IPC: E04F/
Filed: 1963-02-26
Abstract: 1,031,214. Venetian blinds. HUNTER DOUGLAS INTERNATIONAL (QUEBEC) Ltd. Feb. 26, 1963 [March 9, 1962], No. 7744/63. Heading E1J. In a venetian blind of the kind where both the ladder cords 16 and the lift cords 17 are wound on to a rotatable tubular shaft 3 which draws itself along a threaded rod 12 as it rotates, a nylon bearing 4 is employed at each end of the shaft, the bearing having an upper and a lower part, the lower part of which has three horizontal pins projecting therefrom, on to which are slid two plates to provide two separate slots through said lower part of the bearing, through which the ladder cords and the lift cords pass separately.
Patent GB-339217-A (GB)
Title: Improvements in centrifugal honey-extractors
IPC: A01K59/04
Filed: 1930-03-10
Abstract: 339,217. Wood, J. W. March 10, 1930. Honey-extractors. - A machine for separating wax and honey centrifugally has a number of cylindrical screens with horizontal axes about which they rotate at a low speed, while the assemblage as a whole rotates about a vertical axis at a high speed. The machine is particularly for use in separating the honey and wax in comb cappings. The cylindrical tank 1 has a double bottom forming a steam and water chamber 4 provided with an electric heater 10. The rotor consists of foraminous cylinders 16 - - 19 having circular heads, geared together by bevel wheels 24 and carried by a frame-work supported by the central shaft 28. The cylinders may be formed of wire gauze, and they are made with folds that form blades 21, 22. The cylinder 19 carries a worm-wheel 25 which meshes with a worm on the sleeve 26 rigidly fixed inside the tank 1. The shaft 28 is driven by the motor 46 through belt gearing 44 and bevel gearing 40, so that the whole rotor rotates at a high speed. The worm gear 25 also causes each cylinder to rotate slowly on its own horizontal axis, the upper part of each cylinder moving inwards towards the centre of the tank. The sliced capping from the comb slides down the hopper 2 and falls upon the plate 37 which rotates with the rotor, The material is thrown off the plate and is divided by the action of the centrifugal force. The honey passes through the separator screens and is thrown against the wall of the tank 1 where it drops into the trough 7 from which it can be drawn off through the pipe 5. The wax is collected in the folds in the cylinder walls, conveyed towards the centre of the tank and dropped on to the heating chamber where it is melted so that it can be drawn off through the pipe 8.
Patent GB-1562173-A (GB)
Title: Shavingrazor
IPC: B26B21/00
Filed: 1978-02-28
Abstract: The blade-holding razor can assume one form in use and a more compact form when not in use. It consists of a laminar element, with rigid zones and multiple fold lines, one part (32) of said element forming the blade guard, from which the cutting edge of said blade projects. By folding the element so as to couple together two parts (3, 10, 12) which are longitudinally symmetrical, a handle is formed from which the guard extends in a stiffened position as a result of inclined fold lines (16), whereas in its unfolded and flattened form the element can be folded up transversely around said guard. <IMAGE>
Patent GB-1002140-A (GB)
Title: Ultra short-wave antennas
IPC: H01Q25/04
Filed: 1962-02-28
Abstract: 1,002,140. Aerials. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Feb. 28, 1962 [March 1, 1961], No. 7851/62. Heading H4A. Relates to a directional aerial system comprising an open-ended waveguide or waveguide horn propagating modes of different order which are generated by an abrupt discontinuity in the guide cross-section at the junction between the radiating waveguide and a feed guide of smaller cross-section supporting a single dominant mode. According to the present invention symmetric and asymmetric radiation patterns are produced simultaneously, e.g. for use in a monopulse system, by means of two feed waveguides propagating the same fundamental mode, the longitudinal axes of the feed guides being parallel to and differently displaced from the longitudinal axis of the radiating guide. The radiating waveguide portion 7, Fig. 2, may be of constant or non-constant cross-section and the feed waveguides 8 and 9 may be identical and, as shown, be disposed symmetrically about the mid-section E-plane of the waveguide portion to produce directional patterns in the horizontal plane or, as in Fig. 4 (not shown), be disposed symmetrically about the mid section H-plane to produce directional patterns in the vertical plane. The two arrangments may be combined to produce directional patterns in both the horizontal and vertical planes whereby one of the waveguide portions is divided by a wall 22, Fig. 5, to form the feed waveguides for a plurality of radiating waveguide portions 17, 18, 19, 20.
Patent GB-330571-A (GB)
Title: Improvements in motor vehicle chassis
IPC: B60G5/047
Filed: 1929-03-11
Abstract: 330,571. Cook, J. F. March 11, 1929. Equalizing load on wheels and springs. -The axles 5, 6, of a three-axle vehicle are connected by a frame 9 pivoted at 10 to a frame 12 which is secured at 13 to the main frame 8 and at the rear to the ends of a transverse spring member 15. The axle 7 is carried by a frame 16 pivoted to the main frame at 17 and secured to the member 15. The side members of the frame 16 are connected by shackles 17 with the main irame 8 through brackets 18, Fig. III, and ball and socket joints 31. Limited endwise play is allowed to the axle 7 by stops; this play may be prevented during backing by projections 35 on a shaft 34, which are inserted between the stops on actuating a lever 36. The sub-frames are preferably made of leaf-springs.
Patent GB-875835-A (GB)
Title: Impregnation of carbonaceous materials with epoxy resins
IPC: C08G59/40
Filed: 1958-03-12
Abstract: An impregnating composition comprises (1) a thermosetting epoxy resin which is a polyglycidyl ether of a polyhydric phenol; (2) an organic diluent having functional groups capable of reacting with the oxirane groups of (1), and (3) a solution of dicyandiamide in dimethyl formamide.  Epoxy resins specified are the diglycidyl ether of dihydroxy diphenyl dimethyl methane and the mixtures of bis-phenols and the diglycidyl ethers thereof disclosed in Specification 666,732. Diluents specified are n-butyl glycidyl ether, furfuryl alcohol, and furan-ketone condensates (e.g. mixtures of partially hydrogenated mono- and di-furfuryl ketones) or mixtures thereof.  Uses: Impregnating carbon pipes, rods, bars or blocks.  Comparative examples are given in which the dicyandiamide and dimethyl formamide are used separately, and in which triethanolamine with or without triethylene tetramine, dimethylamino propylamine and a -methyl-benzyl dimethylamine are used in place of (3).ALSO:A carbon article is rendered impermeable by impregnating with a mixture of (a) a thermosetting epoxy resin which is a polyglycidyl ether of a polyhydric phenol, (b) an organic diluent having functional groups capable of reacting with the oxirane groups of (a), and (c) a solution of dicyandiamide in dimethyl formamide; and curing the mixture.  The article may be in the form of a pipe, rod, block, or bar.  Impregnation may be effected at sub-atmospheric pressure, the pressure then being increased to 7.5-8 atmos. for 1-2 hrs.  Curing may be effected in an autoclave at a pressure of 7 atmos. at a temperature of 135-165 DEG C. for a period of 20-25 hrs.  Epoxy resins specified are the diglycidyl ether of dihydroxy diphenyl dimethyl methane and the mixtures of bisphenols and the diglycidyl ethers thereof disclosed in Specification 666,732.  Diluents specified are N-butyl glycidyl ether, furfuryl alcohol, and furan-ketone condensates (e.g. mixtures of partially hydrogenated mono- and di-furfuryl ketones) or mixtures thereof.
Patent GB-576048-A (GB)
Title: Improvements in cylinder inserts and liners
IPC: F16J10/04
Filed: 1944-04-29
Abstract: 576,048. Cylinder liners. BRITISH PISTON RING CO., Ltd., WRINCH, E. P., MONOCHROME, Ltd., and SHORTHOUSE, A. C. April 29, 1944, No. 8080. [Class 7 (ii)] [Also in Group XXVI] A cylinder liner or insert a shorter than the cylinder length, has a circumferential groove or recess d formed on its internal surface to receive a metallic filling e having hard wear properties. The filling may have an ultimate thickness of .005 inch and its ends be protected from damage by the shoulders formed at the ends of the groove. The liner is disposed in a counterbore at the inner end of the cylinder and a second liner flush with the first completes the covering of the inside of the cylinder.
Patent GB-961357-A (GB)
Title: Catalytic compositions
Inventor: HADLEY DAVID JAMES
IPC: B01J23/84
Filed: 1962-03-02
Abstract: The catalytic composition of the parent Specification which consists of SnO2 and Sb2O4 in admixture or chemical combination is prepared by forming a mixture of the oxides of antimony and tin, at least one of the oxides being a hydrated oxide obtained from HNO3 on the metal, contacting the resulting mixture with water at elevated temperature or with aqueous ammonia, separating solid from liquid and heating the solid in oxygen at 550-1100  DEG C.  Examples are given.
Patent GB-871237-A (GB)
Title: Process for alkyl and aralkyl biguanides
IPC: C07C279/26
Filed: 1960-03-08
Abstract: Hydrochlorides of alkyl and aralkyl biguanides of the general formula:  <FORM:0871237/IV (b)/1> (wherein R1 is a C3-5 alkyl or alkenyl group or a C7-8 aralkyl group and R2 is a hydrogen atom or a methyl group) are prepared by reacting substantially equivalent quantities of amine hydrochloride, R1R2NH.HCl, with dicyandiamide in 12,5-18% by weight (of total initial reactants) of water, refluxing the mixture for 2-8 hours and recovering the resultant hydrochloride of the biguanide. Optionally, the pH of the reaction mixture is adjusted to 4-5. After 2-4 hrs. refluxing, the reflux being continued after pH adjustment for a further 2-4 hrs.  The invention may be combined with the further step wherein the hydrochloride salt is redissolved in sufficient water and a salt, NaX (wherein X is a chloride or nitrate ion), is added and the so-formed HX salt of the biguanide is separated.
Patent GB-1180496-A (GB)
Title: Expander Cycle for Natural Gas Liquefication
IPC: F25J1/00
Filed: 1968-02-20
Abstract: 1,180,496. Natural gas liquefaction process. CHICAGO BRIDGE & IRON CO. 20 Feb., 1968 [27 July, 1967], No. 8221/68. Heading F4P. Liquefaction of compressed natural gas containing carbon dioxide, methane and higher hydrocarbons is effected by dividing the feed gas into first and second streams 12, 30 cooling the first stream by work-expansion in a turbine 18 without solidification of carbon dioxide, absorbing carbon dioxide at 31 from the second stream 30, cooling the latter to effect partial liquefaction in heat exchangers 24, 23, 22 in countercurrent to said expanded first stream, separating at 62 an impure liquid fraction containing heavy hydrocarbons from said cooled second stream, expanding this separated liquid at a valve 64 and using the cold so produced in a terminal exchanger 67 to liquefy vapour withdrawn from the separator 62 through a line 70. Most of the liquid methane is expanded at a valve 72 into a storage tank 74 at about atmospheric pressure whilst a minor portion of liquid methane is expanded at a valve 77 and joins the cold vapour leaving valve 64. A phase separator 44 is interposed in the second stream between exchangers 24, 23 and separated higher hydrocarbons are expanded at a valve 48 whilst a portion of the uncondensed vapour is withdrawn through a line 45, expanded in a turbine 37 and the two portions combined in a line 50 with the aforementioned expanded portions from separator 62. Effluent from tank 74 is compressed at 79, added to the first feed stream leaving turbine 18 and is then warmed in exchangers 22, 23, 24, 13 and fed into a consumer line 26.
Patent GB-220681-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B9/04
Filed: 1923-03-22
Abstract: 220,681. Thornycroft & Co., Ltd., J. I., and Mackie, R. March 22, 1923. Pulverulent-fuel furnaces.-A boiler of the kind described in Specification 160,292, has a number of furnace shells arranged eccentrically within the boiler shell. Three vertical closed-ended furnace shells a supplied with pulverized fuel by nozzles k are arranged at equal distances apart around the axis of the boiler shell c, and are secured to upper and lower tube plates d, e. The shells may be arranged horizontally and the boiler may have a wet back or bottom, as described in Specification 160,292.
Patent GB-374900-A (GB)
Title: Improvements in or relating to distillation processes for the production of zinc or similar volatilisable metals
IPC: F27B7/34
Filed: 1931-03-17
Abstract: A continuous distillation process for the production of zinc or similar volatizable metals in a rotary furnace comprises the reduction and volatilization of the metal from the mixture of material and reducing substance in a muffle which is built into a rotary furnace, the residue from the muffle process being discharged, whilst excluding gas therefrom as far as possible, into the furnace space of the rotary furnace, and the reducing material still present in the residue being burnt in the furnace space with the addition of gases containing oxygen, so that the heat of combustion is utilized to heat the muffle.  Metal vapours from the muffle pass to a condenser, residual gases from which can be used for the heating of the muffle.  A reduced pressure is maintained in the muffle and condenser suction device.
Patent GB-333864-A (GB)
Title: A packing for photographic plates
IPC: G03C3/00
Filed: 1930-03-14
Abstract: 333,864. I. G. Farbenindustrie Akt.- Ges. March 16, 1929, [Convention date]. Drawings to Specification. Plates, receptacles for.-A packing for a pile of plates comprises a paper strip which covers the pile on four sides and has short folds adapted to separate the plates in pairs at one edge or at two opposite edges. The pile is then inserted into a paper envelope which embraces it at the upper and lower sides and the two uncovered edges.
Patent GB-668683-A (GB)
Title: Improvements relating to conveyors, screens and the like
IPC: H02K33/08
Filed: 1949-04-02
Abstract: 668,683. Sieves. SMIDTH & CO. AKTIESELSKAB, F. L. April 3, 1950 [April 2, 1949], No. 8348/50. Class 117 [Also in Group XXX] A vibrating conveyer or screen, Fig. 2, comprises a vibrating body 2 which is vibrated by an angularly-oscillating electromagnetic vibrator 1, the vibratory movement passing through a member 5 which is resilient and is rigidly connected both to the body and to the rotor of the vibrator. The conveyer (or screen) 2, Fig. 2, is vibrated by the rotor 50 of vibrator 1 the rotor being supported by bar 6 supported by springs 7 and being connected to conveyer 2 by leaf spring 5. Spring 7 may be leaf springs, or may be omitted. The rotor 20, Fig. 7, of the vibrator is fixed on spindle 13 fixed at 15 to oscillate torsionally and is secured by bracket 11 and spring 5 to the conveyer, the stator 19 being secured to base 21. The spindle 13 may be supported additionally in two bearings; or it may be secured at one end only and be rotatably mounted towards the other end in one or two bearings. The rotor is furnished with a four-pole permanent magnet and the stator is energized to provide four alternating poles by A.C. current. Alternatively, the permanent magnets may be static and the alternating poles may be on the rotor. The permanent poles may be electric-induced, and all poles may be positioned on the stator, the rotor being a squirrel cage.
Patent GB-413814-A (GB)
Title: Improvements in or relating to methods of treating oxide coatings
IPC: C23C22/83
Filed: 1933-03-20
Abstract: Oxide-coated aluminium or aluminium alloy surfaces are immersed in a solution of a salt of a weak metallic base, the conditions being adjusted so that a substantially insoluble compound of the metal is precipitated in the oxide coating by hydrolysis.  The treatment decreases the permeability of the coating and may be applied to a coating which has previously been treated to cause it to adsorb colouring or corrosion inhibiting substances such as organic dyes or sodium silicate.  The preferred salts are the acetates and sulphates of nickel and cobalt but the general class of salts referred to includes the acetates, sulphates, oxalates, chlorides, nitrates, citrates, tartrates, and fluorides of metals such as nickel, cobalt, cadmium, zinc, copper, aluminium and lead. A buffering agent such as boric acid, a borate, or an acetate is preferably added, particularly when the salt of a strong acid is employed, to facilitate the adjustment of the hydrogen ion concentration.  The hydrogen ion concentration is preferably adjusted so that at a temperature above 40 DEG  C. the solution becomes turbid or cloudy but no substantial amount of flocculent precipitate forms.  The treatment of oxide coatings on aluminium utensils such as trays and freezing receptacles and on small articles such as buttons and pins is referred to.  The oxide coating may be produced either anodically in an electrolyte such as sulphuric acid, chromic acid, an organic acid, or an acid salt, or chemically, preferably in an alkaline solution.
Patent GB-141497-A (GB)
Title: Improvements in embossing appliances
IPC: B41M1/24
Filed: 1919-04-04
Abstract: 141,497. Mody, F. W. April 4, 1919. Embossing; embossing- surfaces.-A device for embossing monograms &c. on stationery, of the kind comprising two strips of thin material embossed to produce a die and counterpart on the respective pieces and secured in superposed relation, is formed with two strips a, b of aluminium alloy, celluloid, &c. having embossed parts at each end and secured intermediately, so that an envelope flap may be inserted between the strips at one end and the note-paper at the other. Each strip can be wholly embossed and punched at one operation and subsequently connected, as by eyelets c; or the superposed strips may be embossed at one operation.
Patent GB-199479-A (GB)
Title: Improvements in and connected with gun mountings
IPC: F41A27/26
Filed: 1922-03-25
Abstract: 199,479. Armstrong, Whitworth, & Co., Ltd., Sir W. G., and Brereton, C. F. March 25, 1922. Naval mountings.-Hydraulic elevating-gear in which the admission and exhaust of pressure fluid to the elevating cylinder 13 is under the control of a slide-valve 16, itself operated by a piston and cylinder device 17, 171, 172, is adapted for automatically elevating the gun when, at certain angles of training, undue depression would be dangerous. For normal operation, the valve 16 is controlled by a pilot valve 18 operated by the elevating hand-wheel 22, but under danger conditions elevation is effected by the movement to the right of a valve 23 caused by a projection 29 on the gun striking a lever 28, this lever being moved into the path of the projection by the usual depression control cam 15 and floating lever 27. The pilot valve 18 controls channels 165, 164 as well as channels 167, 166 which give a free passage for pressure fluid from pipe 20 and exhaust fluid by way of cavities 231, 232 in the safety-valve 23 when this is out of action. When the valve 23 is moved to the right by the depression-control gear, the channels connecting the pilot valve with the cylinder spaces 171, 172 are blocked, and pressure fluid from a separate pipe 30 is admitted to the space 171 to cause elevation of the gun, the exhaust from the space 172 taking place through a passage 24. The valves 18, 16, and 23 are preferably arranged in the same casing.
Patent GB-288806-A (GB)
Title: Improvements in smokers' petrol lighters
IPC: F23Q2/44
Filed: 1927-03-30
Abstract: 288,806. Wise, F. C., and Greenwood, W. March 30, 1927. Addition to 288,787. Pocket igniters, frictional.- The louvres of the wind shield a described in the parent Specification are arranged so that, while the flame is protected from direct draught, the air currents are caused to sweep the whole interior of the shield and carry the petrol vapour emanating from the exposed portions of the wick along the wick tube c towards the flame. The louvres b are arranged horizontally so as to direct the draught towards the bottom of the shield or vertically so that the air enters substantially at a tangent to, and sweeps spirally around, the wick-tube c. Each elongated horizontal louvre may be replaced by a number of short louvres.