baber/WOPTO huggingface dataset:
Patent GB-607967-A (GB)
Title: Apparatus for applying pressure to secure the attachment of a patch of rubber or thelike to a sheet of similar material
IPC: B29D23/24
Filed: 1945-10-26
Abstract: 607,967. Connecting valves to tyres. DUNLOP RUBBER CO., Ltd., and BADHAM, P. W. Oct. 26, 1945, No. 28260. [Class 135] [Also in Group V] A method of applying pressure to secure a patch of rubber to a sheet of rubber, e.g. a valve patch 6 to the inner tube 4 of a tyre, comprises positioning the patch on the tube, assembling a rigid plate 5 on the patch and an inflatable air-bag 3 under the tube, supporting the assembly on one of two platens 1, 2, and distending the air-bag to compress the patch and tube between the platens.
Patent GB-424876-A (GB)
Title: Improvements in and relating to electricity meters
IPC: G01R11/36
Filed: 1934-10-03
Abstract: 424,876. Supply meters. COOP, N. B., and BRITISH ELECTRIC METERS, Ltd., Morden Road, Mitcham, Surrey. Oct. 3, 1934, No. 28284. [Class 37] The poles of the series magnet 2 of an induction meter are provided with a laterallydisposed magnetic bridge 4 lying substantially in the plane of the pole faces, from which it is separated by strips of brass 5 or other non- magnetic material, the bridge being adjustable in a direction parallel to a line joining the centres of the pole faces. In the construction shown, the bridge is carried by a slidable member 6 mounted on the meter frame or on the series magnet. The bridge is provided with slots 6<a>, 6<b>, engaging fixing screws 8, 9, and with a rack 6<c> which co-operates with an adjusting pinion 10. The arrangement improves the error-load curves at low and high loads.
Patent GB-265684-A (GB)
Title: Improvements in electric heating units
IPC: H05B3/06
Filed: 1925-11-10
Abstract: 265,684. Satchwell, L. Nov. 10, 1925. Heating by electricity. -A metal tube 1 which may be incorporated in a kettle or like utensil during manufacture contains a heating resistance comprising a straight or helical wire threaded through insulating beads. The element can be readily withdrawn from the tube. For this purpose the terminals 4 are secured to the ends of the tube 1 by screwed nipples 6 engaging with insulating washers 7. On unscrewing the nipples 6 and detaching one terminal the element can be drawn through the tube. The terminals are protected by a cap 5 integral with the tube 1. Instead of the terminals being at different ends of the tube as shown the wire may return to the end from which it starts through another set of beads in the hollow of the helix.
Patent GB-408610-A (GB)
Title: Improvements in or relating to lawn mowers and devices for attachment thereto
IPC: A01B45/00
Filed: 1932-10-11
Abstract: 408,610. Lawn - mowers. GIBBS, S. J., 101, Pixmore Way, Letchworth, Hertfordshire. Oct. 11, 1932, No. 28318. [Class 6 (ii).] A device in or for attachment to a lawn-mower, for cutting spreading weeds &c., comprises a spindle 1 carrying a series of cutting blades 2 arranged in parallel spaced relationship, the cutting edges being at rightangles to the spindle axis. The blades are preferably circular, and are spaced on the spindle by washers 3 and held in position by nuts 4 ; they may be free to rotate on the spindle or fixed thereto. The spindle, of round or square cross-section, is mounted in the brackets which normally support the wooden roller. A steel comb may be arranged to clean the spaces between the blades. According to the Provisional Specification, the spindle 1 may be geared to the ordinary cutting knives.
Patent GB-187963-A (GB)
Title: Improvements in air scrubbing and cooling devices for alternators
IPC: F28F1/30
Filed: 1922-10-18
Abstract: 187,963. Pourcel, M. L. Oct. 29, 1921, [Convention date]. Dynamos, cooling.-In an air-scrubbing and cooling device for alternators of the type described in Specification 167,750, the fins 1 on the pipes 2 are formed with series of incisions 3 of saw-tooth form along their upper and lower edges so that the water drops shall fall from points along the whole of the lower edges. An additional strip 5 with a serrated lower edge 6 is fitted into recesses 4 at the underside of the fins 1 to give a further distribution of the drops over the range of fins below.
Patent GB-893405-A (GB)
Title: Improvements in electronic analogue computer circuits
IPC: G06G7/20
Filed: 1960-08-16
Abstract: 893,405. Transistor square root circuits. GENERAL PRECISION Inc. Aug. 16, 1960 [Aug. 19, 1959], No. 28406/60. Class 40(6). [Also in Group XXXVI] A circuit for deriving an output voltage V o  proportional to the square root of a varying D.C. input voltage V x  comprises two amplitude limiting transistor switching circuits 19, 17, the latter being connected in the feedback circuit, so that circuit 17 amplitude limits the input pulses in accordance with V o , the input pulses to circuit 19 therefore varying in timewidth directly as V x  and inversely as V o  and in amplitude as V y  (where V y  is a constant voltage applied to the collector of one transistor T-1 of switch 19), the output on conductor 20 therefore consisting of pulses of area (or of average values) of V x .V y /V o which is equal   to V o so that V o  = #V x V y  = k#V x  where V y  = k<SP>2</SP>. V x  modulates a sine or sawtooth wave at 12a, 12b the output of which is fed to a limiting amplifier V-102 to provide the pulses at 16, In a further embodiment (Fig. 2 not shown) push pull complementary transistor amplitude-limiting switches are employed and an arrangement is also described for obtaining an output which is always of the same sign as the input (Fig. 3, not shown).
Patent GB-1440131-A (GB)
Title: Methods of making polyurethane powder
IPC: C08G18/10
Filed: 1973-06-15
Abstract: 1440131 Polyurethane powders USM CORP 15 June 1973 [7 Aug 1972 9 May 1973] 28488/73 Heading C3R Polyurethane powders are prepared by reacting a first reactant comprising an organic polyisocyanate with a second reactant comprising an organic compound containing at least two active hydrogen-containing groups at an active hydrogen to NCO group ratio of 0À85 to 1À15 : 1 and by emulsifying with the aid of a polymeric surfactant one of the reactants as liquid droplets in a continuous phase comprising an organic liquid inert to the reactants and in which said one reactant and the reaction product are immiscible and the other of the reactants is miscible, dissolving the other reactant in the inert liquid, reacting the reactants under conditions of vigorous agitation to form fine particles of the polyurethane and separating the particles from the inert liquid. The polymeric surfactant having groups which associate with the surface of the droplets of emulsified isolubleÀreactant and with particles of the solid reaction product and having groups which are solvated by the inert liquid. Suitable inert liquids are aliphatic hydrocarbons having a boiling point of 65‹ to 200‹ C. particularly paraffinic hydrocarbons. Preferred surfactants are copolymers of vinyl pyrrolidone with an alkylated olefin, e.g. hexadecene-1 and copolymers of at least one acrylic or methacrylic acid ester of an alcohol having at least 4 carbon atoms, and at least one acrylic or methacrylic acid ester of methyl alcohol, glycidyl alcohol, or N,N<SP>1</SP>-diethylaminoethyl alcohol, especially copolymers derived from lauryl methacrylate. The immiscible reactant is preferably the second reactant, e.g. a polyester or polyether polyol and the miscible reactant is preferably an aromatic or cycloaliphatic diisocyanate. The powders may be used for coatings or adhesives.
Patent GB-1105104-A (GB)
Title: Ladder without rungs, suitable for gymnastic exercises
IPC: A63B27/00
Filed: 1966-06-14
Abstract: 1,105,104. Climbing apparatus. G. BOLOGNINI. 14 June, 1966, No. 26506/66. Heading A6M. An apparatus for climbing comprises two parallel spaced C section uprights (1) each with a toothed rack (2) inside, an upper slide (5) as shown in Fig. 1 and a lower slide (30, Fig. 3 not shown) on each upright and fitted with a handgrip (6) or footboard (31) respectively, each slide having a unidirectional stop motion device comprising a pawl (20) which is normally held in a disengaged position by two opposed springs (10, Fig. 2, not shown, and 17) but by operating the stop motion device by the hand or foot the pawl can be made to engage the upwardly pointing teeth of the rack thus preventing downward movement of the slide whilst still allowing an upward movement to be made. As illustrated in Fig. 1 the pawl (20) is normally held away from the rack (2) by virtue of the spring (10) but when the lever (11) is rotated clockwise by the gymnast's hand in grasping the handgrip (6) the spring (10) is overpowered and the spring (17) moves the pawl to engage the rack and prevent downward movement of the slide. The lower slides work on a similar principle as the upper ones but have a modified construction.
Patent GB-230761-A (GB)
Title: Improvement connected with road rollers
IPC: E01C19/26
Filed: 1924-11-28
Abstract: 230,761. Bell, W. T., and Bretherton, F. J. Nov. 28, 1924. Rollers, road.-Road rollers are provided with a water tank mounted within the rear roller at one side in such a way that it does not revolve with the roller. One end of the roller C is open and the other is provided with a sleeve D connected to it by webs F having narrow extensions reaching to the open end. The tank H is of segmental or other shape, the top being flat and the greater part of the water space being below the axle A. It is provided with a central sleeve I fitting on the axle A, and with valved inlet and outlet openings. In another arrangement, the sleeve D extends to the open end of the roller and the sleeve I surrounds it. In another, in which there are no protuberances at one side of the roller, the axle A is reduced at the tank end and is secured on the frame at one end only, the tank being held in place by a nut on the free end of the axle. The axle may be hollow with a pipe passing through it to connect the tank with the feed pump of the boiler.
Patent GB-635859-A (GB)
Title: Improvements in and relating to machines used in cooling of confections such as sweets
IPC: A23G7/02
Filed: 1947-10-25
Abstract: 635,859. Cooling sweets &c. LOFFETT, J. and BRADLEY, C. Oct. 25, 1947, No. 28569. [Class 29] [Also in Group XXX] Apparatus for cooling confections such as boiled sweets comprises a horizontal rotary structure 1 including a number of staggered superposed perforated rings . . . 7 of different diameters over which the of different diameters over which the sweets are directed so that they pass through the several orbits in series and are cooled by air currents directed upon them through the perforated floors of air ducts 12 ... 14. The step-like rings are driven by a central vertical shaft 2 and the sweets are fed to the uppermost ring 3, guide bars transferring them successively to the other rings and from the lowest ring 7 to a container. Further cooling ducts may be arranged over the lower rings 5 ... 7.
Patent GB-928698-A (GB)
Title: Improvements in and relating to the production of fibreboard panels having a weatherproof coating
IPC: B27N7/00
Filed: 1960-08-18
Abstract: A weatherproof fibreboard panel is produced by spraying, sprinkling or pouring a plastic composition comprising polyvinyl chloride and a volatile plasticizer with or without a stabilizer, dye, pigment and/or a non volatile plasticizer, on to a panel still hot from a hot press, passing the coated fibreboard panel through a heated space in which it is subjected firstly to a temperature of 200 DEG C, and subsequently to 165 DEG  to 175 DEG C. to obtain a coating of at least 0,18 mm. thickness and then adjusting the moisture content of the coated fibreboard panel to a desired value.  The plastic composition may include or may have subsequently applied thereon water- or mould fungus-repelling chemical agents.  The panel may be precoated with plasticized polyvinyl chloride or nitrile rubber with or without graphite of aluminium powder.  To the dried coated fibreboard panel may be applied a solution of silicone oil or "Hypalon" (Registered Trade Mark) in toluene.  Infra-red, steam, capacitative or dielectric heating systems may be used.  The composition may comprise polyvinyl chloride powder, dimethylphthalate, dioctylphthalate, barium cadmium laurate, dibasic lead phosphate, silicon dioxide, chrome oxide and chlorinated paraffin, mepasin sulphonic acid phenyl ethyl ester, butylglycol or pentachlorophenol.ALSO:A coating composition for coating fibreboard panels (see Group III) comprises a polyvinyl chloride and volatile plasticizer with or without a stabilizer, dye, pigment and/or non-volatile plasticizer.  The examples disclose compositions prepared by diluting a paste comprising polyvinyl chloride powder, dimethyl and dioctyl phthalate (as volatile and nonvolatile plasticizers respectively), barium cadmium laurate (as stabilizer), dibasic lead phosphate, silicon dioxide and chrome oxide with (1) dimethyl phthalate, (2) chlorinated paraffin or mepasin sulphonic acid phenyl ethyl ester (mepasin is a mixture of paraffin hydrocarbons having 12 to 18 carbon atoms), (3) dimethyl phthalate and butyl glycol and (4) pentachlorophenol.  The Specification also discloses a composition comprising polyvinyl chloride or nitrile rubber with or without graphite or aluminium.
Patent GB-936446-A (GB)
Title: Resilient seal for floating roof tank
IPC: F17B1/04
Filed: 1962-07-25
Abstract: 936,446. Floating covers for tanks. CHICAGO BRIDGE & IRON CO. July 25, 1962 [Jan. 19, 1962], No. 28616/62. Class 69 (1). A tank for storage of volatile liquid has disposed around the periphery of its floating roof 21 in contact with the tank wall 22 a seal of resilient material 29 having a substantially triangular cross-section 29a. The block of resilient material 29 is of polyurethane. It is covered by a protective envelope 30 of polyurethane or other plastic coated with an elastomer such as polyvinyl chloride. The block and envelope are clamped at the top and bottom to angle members 33 and 41 which may be supported from the top of the roof-side at 53 on hangers 48 or welded directly on to the side 28 (Figs. 3, 9, 10 and 11, not shown), or it may be clamped direct at 83 and 84 to the wall 28. A sealing band 54 may be vulcanized to the envelope as in Fig. 2. The back of the block 29 may be recessed as in Fig. 5, to provide space for elastic deformation, or it may have spaced alternating rows of conical or cylindrical recesses formed in the back surface (Figs. 10 to 13, not shown). The tip of the triangular section may be truncated as at 29c of Fig. 5.
Patent GB-822930-A (GB)
Title: Railway and the like track recording vehicle
IPC: B61K9/08
Filed: 1956-09-19
Abstract: 822,930. Recording-apparatus. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Sept. 19, 1956 [Sept. 21, 1955], No. 28683/56. Class 106 (4). [Also in Group XXX] In a railway or like recording vehicle for measuring data which determine the state of the track (see Group XXX) the data measured is transmitted by cable and pulley mechanisms 50, 51 each to respective pens such as 41 of a recording set to inscribe adjacent records on a vehicle-driven sheet.
Patent GB-640394-A (GB)
Title: Activating the oxidising power of chlorite solutions and bleaching cellulosic material therewith
IPC: C23F13/02
Filed: 1947-10-29
Abstract: Cellulosic textile materials are bleached in a solution of a chlorite which has been activated by means of a multivalent metal or alloy or insoluble compound thereof which is in contact with the chlorite, the extent or time of contact of the activator with the chlorite solution being capable of regulation.  Suitable metals are chromium, iron, cobalt, nickel, copper and manganese. In order to prevent uncontrollable activation of the chlorite by the metal of which the container is made, the metal is polarized by known electrical methods, e.g. a protecting metal which is more electropositive than the metal of the container may be introduced into the chlorite solution, and an electrical connection made between the two metals. In a modification, the protecting metal is in a separate vessel which is in hydraulic connection with the bleaching vessel.  Other modifications are described in which the activating metal or compound is in a separate vessel and the chlorite solution is circulated through the bleaching vessel and the vessel containing the activator; in which the protecting metal is enclosed within a porous cell in the bleaching vessel; and in which the activator is in the form of a mass, e.g. of cobalt oxide, at the bottom of the vessel.ALSO:The oxidizing power of chlorite solutions is activated by means of a multivalent metal or alloy or insoluble compound thereof which is in contact with the chlorite, the extent or time of contact of the activator with the chlorite solution being capable of regulation. Suitable metals are chromium, iron, cobalt, nickel, copper and manganese.  In order to prevent uncontrollable activation of the chlorite by the metal of which the container is made, the metal is polarized by known electrical methods, e.g. a protecting metal which is more electro-positive than the metal of the container may be introduced into the chlorite solution, and an electrical connection made between the two metals.  In a modification, the protecting metal is in a separate vessel which is in hydraulic connection with the bleaching vessel.  Other modifications are described in which the activating metal or compound is in a separate vessel and the chlorite solution is circulated through the bleaching vessel and the vessel containing the activator; in which the protecting metal is enclosed within a porous cell in the bleaching vessel; and in which the activator is in the form of a mass, e.g. cobalt oxide, at the bottom of the vessel.
Patent GB-337908-A (GB)
Title: Improvements in or relating to web roll supporting and handling mechanisms for printing and other machines
IPC: B65H19/26
Filed: 1929-09-24
Abstract: 337,908. Goss Printing Press Co., (Assignees of Lang, H.). April 22, 1929, [Convention date]. Feeding and registering webs.-In a web roll supporting and handling mechanism for printing or other machines having roll-engaging spindles mounted in vertical spaced-apart supports and a cradle to receive a web roll and adapted to be raised to bring the roll into position to be engaged by the spindles, the cradle is raised by cables connected thereto and passing round drums on a power-operated shaft. Figs. 1 and la show the end portions of the apparatus and Fig. 4 is a plan of the lower portion of the apparatus. The rolls are pushed into the apparatus on to a cradle 60 of open rectangular form, the end members 63 of which engage vertical guiders 66 on end frames 22. The cradle is provided with concave roll supporting arms 65 and is connected to cables 67, 68 passing over guide pulleys to drums 69 fixed on a shaft 70 which may be driven by a motor 74 to raise the cradle and lift the roll into position to be engaged by spindles 27. The spindles 27 are rotatably mounted in pedestals 23, 24 provided at their lower ends with rollers 84 running in tracks 85 in a base frame 20. The spindles 27 are mounted in ball bearings 33 held by ring nuts 39 and the spindles are prevented from moving axially relatively to the bearings by intermediate sleeves 35 pinned to the spindles. The bearings of one spindle, Fig. 1<a>, are mounted directly in the pedestal 24 but those of the other spindle, Fig. 1, are mounted in a sleeve 40 slidably keyed in the pedestal 23 to allow the spindle to engage and release the roll This movement may be effected by a hand-lever 43, Fig. 5, pivoted to a bracket 44 on the sleeve 40 and connected by a link 47 to a bar 45 adjustable fixed to the pedestal. A locking bar 49 engaging a toothed portion 48 of the bracket holds the sleeve in adjusted position. An arm 52 on the hand-lever 43 engages a stop 54 on the link 47 to limit the inward movement of the sleeve, and the limiting position is variable by adjustment of the bar 45. The pedestals 23, 24 are adjustable laterally and simultaneously for side register of the web by means of a screwed shaft 90 which engages nuts mounted in the lower portions of the pedestals and is rotatable by a handwheel 98 and gearing 95, 92. To allow of independent movement of the pedestals in accordance with the width of the rolls, the nuts are split into half-nuts 94, Fig. 8, slidable on guides 100 and carrying rollers 106 engaging cam grooves in plates 102 which are rotatable in guides 104. The plates are connected by links 110 to hand-levers 108 whereby the half-nuts may be separated when desired to release the pedestals from the screwed shaft 90. One spindle 27, Fig. 1<a>, is provided with a brake drum 115 engaged by brake shoes pivoted to levers 119 which are pivoted at their lower end on a spindle 120 and connected at their upper ends by a link 121 carrying a spring and hand-wheel nut for varying the brake pressure.
Patent GB-380634-A (GB)
Title: Improvements in or relating to high voltage protecting arrangements for electrical circuits
IPC: H01T4/10
Filed: 1931-10-19
Abstract: 380,634. Protective arrangements for supply systems and apparatus. AKTIESELSKAPET ELEKTRISK BUREAU, 17, Middelthungsgate, Oslo, Norway. Oct. 19, 1931, No. 29052. Convention date, Oct. 24, 1930. [Class 38 (iv).] A rare-gas protector in telegraph, telephone and other electrical circuits is protected from high voltage electrostatic discharges by an additional protector comprising insulated strips 4, 5 with flash-over teeth 8, 9 and spring clips 2, 3 by which it may be clipped on to the metallic end parts of the raregas protector 1. In a modification, shown in end view in Fig. 3, one strip is bent over so that its teeth 11 may be adjusted in position with relation to the opposite strip portion 12 by means of a screw 13. The Specification as open to inspection under Sect. 91 (3) (a) describes other constructions modified in respect of the arrangement of the flash-oveteeth and of the adjusting screw. This subject-matter does not appear in the Specification as accepted.
Patent GB-292830-A (GB)
Title: Method and apparatus for the production of ammonia-air mixtures
IPC: C01B21/26
Filed: 1927-10-31
Abstract: 292,830. Pauling, H. Oct. 31, 1927. Catalytic processses. - A uniform mixture of ammonia and air for the catalytic production of nitric acid is obtained by absorbing the ammonia. in liquid, preferably water, and removing it from the solution by blowing air through it. The liquid is circulated in series through the absorber and the blowing apparatus and storage tanks for the strong and weak solutions are provided to enable the flow of liquid through each part of the apparatus to be varied. This variation is. effected automatically by devices actuated by the temperature or the density of the liquid, the rates of absorption and liberation of ammonia being thus maintained constant. Fig. 1 shows au embodiment of the invention wherein water is circulated through an absorber 1, tank 3, blowing apparatus 5, and tank 7. Excess of ammonia, supplied to the absorber increases the concentration and consequently the temperature of the solution entering the tube 3, and the thermostat 2 opens the valve 4 admitting a compensating increased supply of water to the absorber. Thermostat 6 similarly controls the input to the blowing device. In another modification the blower and absorber are combined in a single unit, only one storage tank is provided, and the flow is controlled by the densityof the liquid.