baber/WOPTO huggingface dataset:
Patent GB-649646-A (GB)
Title: Improvements in and relating to the production of porous bodies
IPC: C08J9/26
Filed: 1948-02-04
Abstract: Soft, elastic, porous bodies are made by mixing polyvinyl chloride and a softening-agent, e.g. dibutyl phthalate, dioctyl phthalate, dibutyl sebacate, or tricresyl phosphate, with at least twice the volume of these substances of a soluble granular salt, e.g. sodium chloride, the smallest particle of which is 0.5 mm. or more in size and the largest particle is not more than 5.0 mm., the mix being shaped and set by heating, and the salt being then removed by lixiviation.  The polyvinyl chloride should be of such a consistency that the salt is not crushed during mixing. Polymerizable substances, e.g. methyl methacrylate, styrol or chloroprene, and catalysts, e.g. peroxides, aluminium chloride, or boron trifluoride may be added. The Specification as open to inspection under Sect. 91 comprises also the use of polystyrene, polyacrylates, polyallyl esters, polybutadiene and polychloroprene and solvents, e.g. benzol, toluol, petrol and carbon tetrachloride.  This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 comprises the production of porous natural or artificial rubber by incorporating in a solution thereof in benzol, toluol, petrol, or carbon tetrachloride, a water-soluble salt such as sodium chloride which is insoluble in the rubber solvent, the size of the largest of the grains of the salt being less than 10, and preferably less than 5 times that of the smallest.  This subject-matter does not appear in the Specification as accepted.
Patent GB-414138-A (GB)
Title: Process for the manufacture of dyestuffs of the azine series
IPC: C09B17/04
Filed: 1933-02-02
Abstract: Naphthophenazine dyes of the general formula <PICT:0414138/IV/1> where one X is a sulphonic group and the others represent hydrogen partially replaced by alkyl are obtained by reacting in the customary manner with an oxidizing agent upon a mixture of 1 : 3-diarylaminonaphthalene-8-sulphonic acid and a monosulphonic acid of 4-4<1>-diaminodiphenylamine or its alkyl substitution products in a suitable diluent.  The products dye wool and silk intense greenish-blue.  U.S.A. Specification 940,354 is referred to. According to examples: (1) 1 : 3 di-p-anisidino-naphthalene-8-sulphonic acid and 4 : 4<1> - diaminodiphenylamino - 3 - sulphonic acid are oxidized by a current of air in presence of copper tetraminine as catalyst to give a dark crystalline product having the above dyeing properties; the former substance may be replaced by 1 : 3-dianilino or 1 : 3-di-p-totuidinonaphthalene-8-sulphonic acid and the latter by 4 : 4<1>-diaminodiphenyl-amino-2-sulphonic acid, similar products are obtained; (2) 1 : 3-dianilinonaphthalene-8-sulphonic acid and 4 : 4<1>-diamino-3<1>-methyl diphenylamine - 2 - sulphonic acid (obtainable by condensing 4-nitro-1-chlorobenzene-2-sulphonic acid with p-toluylene-diamine and reducing the nitro group) are oxidized with a current of air in presence of alkali, alcohol and ammonia; similar products are obtained by replacing the latter substance by 4 : 4<1> - diamino - 3<1> : 5 - dimethyldiphenylamine-2-sulphonic acid (prepared similarly) or the former by 1 : 3-di-p-toluidino- or 1 : 3-di-p-anisidino-naphthalene-8-sulphonic acid.  The position of the sulphonic group X, referred to is not certainly known.  Reference has been directed by the Comptroller to Specification 18729/08, [Class 2].
Patent GB-1382761-A (GB)
Title: Air purifier appliance
IPC: B01D53/04
Filed: 1973-01-23
Abstract: 1382761 Air purifier J E WELFORD 23 Jan 1973 3284/73 Headings B1L and B1T [Also in Division F4]  An air purifier element comprises a bed of active carbon granules F compressed between two resilient sheets D, E of foamed polyurethane, this assembly being sandwiched between support grilles B, C of rigid wood, metal or plastic in a frame A. The polyurethane sheets are normally 0.375 inches thick, but are compressed in use to grip the carbon granules and prevent them settling or chanelling even when the element is vertically oriented. The carbon bed may be 1.10 inches thick and comprises granules of 0.5 to 5.0 mms dia, with a bulk density of 0.4 to 0.6 grms per cc. The opencelled polyurethane may have 10-80 cells per linear inch. In Figs. 2, 3 (not shown) the element of Fig. 1 is arranged in a flat housing with a downstream air blower (H) and possibly an upstream filter (I), to form a mobile air purifier unit.
Patent GB-322389-A (GB)
Title: Automatic vending machine
IPC: G07F11/24
Filed: 1929-01-31
Abstract: 322,389. Nightingale, T. Jan. 31, 1929. Delirery of articles stored in piles ; coin action, weight. - A coin, in its fall in a coin shoot 25, strikes against the lower end of a pivoted bar 22, which projects into the shoot, and disengages, against an adjustable counterweight 27 mounted on the same pivot, a pawl 18, which normally engages one of four equi - distant teeth 17 on a ratchetwheel 16, thus enabling a wheel 13, having four vanes 14, which project into a supply tube 3 through an opening, to be turned in a counterclockwise direction through a quarter of a revolution under the weight of a column of packets of goods in the form of rolls 4, such as film rolls, lying horizontally in the supply tube 3. The lowermost roll 4, on rotation of the vanes 14, slides into an appropriately positioned pocket 34 on a drum 33, which is rotated through an idle wheel 30 by a toothed wheel 15 on the axis of the wheel 13 and housed at one side of the supply tube 3. The drum 33 is thus turned through a quarter of a revolution to bring the packet contained in the upper of its four pockets opposite an opening 2 in the front of the machine casing through which it may be removed.
Patent GB-284655-A (GB)
Title: Improved process for hydrogenating hydrocarbons or carbon
IPC: C10G1/00
Filed: 1928-02-02
Abstract: 284,655. Hansen, F. J. M. Feb. 2, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Gases, treating with electric discharge.-The hydrogenation of hydrocarbons or carbon is effected by the action if an electric arc or a series of sparks from a condenser discharge between electrodes which are immersed in a solvent for the products. One of the electrodes is formed of or contains a catalytically active metal such as nickel or contains a metal salt such a nickel carbonate which becomes dispersed in the liquid during the reaction. The electrode is drilled or formed with a quartz sleeve so as to form a passage for hydrogen and in some cases for hydrocarbon vapour. The solvent is circulated in a closed circuit which comprises a cooling device or a still for separation of the products of hydrogenation. Alternatively the products may be removed as vapours from the apparatus. In examples, vapours of naphthalene or a carbonaceous gas such as water gas are introduced together with hydrogen through electrodes one of which is formed of nickel into a vessel containing sufficient tetrahydronaphthalene to submerge the spark or are gap. Coal or coke to be hydrogenated is moulded to form electrodes, a metal salt being added before moulding or a metal wire being embedded in the electrodes, and hydrogen is introduced through or around the electrodes. A suitable solvent consists of a mixture of tetrahydronaphthalene and isobutyl alcohol. The process may be carried out at a pressure of about 10 atmospheres.
Patent GB-914949-A (GB)
Title: Improvements in fruit grading machines
IPC: B07B13/07
Filed: 1960-01-30
Abstract: 914,949. Screening-apparatus. MARTIN, W. T. April 25, 1961 [Jan. 30, 1960], No. 3391/60. Class 117. A tomato &c. grader includes an open mesh endless belt conveyer with means at its delivery end which intermittently penetrate the mesh apertures to clear them of any tomatoes lodged therein. As shown in Figs. 2 and 3 the belt may comprise spaced, transverse, hardwood spars 18 on endless longitudinally extending flexible cords 19 providing discharge apertures 20. The belt engages two sprockets 21 on a driving-shaft 22, pulleys or sprockets 24 on an idler shaft 25, and a curved guide 23, and the upper tomato carrying flight is inclined upwardly in the direction of travel. A shoot 17 receives the tomatoes which fall through the apertures. The sprockets 21 drivingly engage the ends of the belt spars 18, and are spanned by circumferentially-spaced rods 28 which, in operation, alternate with the spars and carry spaced elements such as sponge rubber balls 29 which enter the apertures 20 and eject any tomatoes jammed therein. Fig. 1 shows three such conveyers 12-14 in series, with apertures of increasing size, with intermediate ramps 32, 33, and a hopper 35 for the largest tomatoes. Frcm a hopper 9 the tomatoes are fed to a conveyer 10, comprising spaced transverse spars, allowing the smallest tomatoes to fall into a receptacle 15 ; the remainder pass via a ramp 30 to a conveyer 11 on the upper flight of which they are spaced and manually sorted, e.g. various kinds are placed towards the opposite sides of the belt. The tomatoes are then fed to the grading conveyers via a ramp 31.
Patent GB-220239-A (GB)
Title: An improvement in red-lead paint
IPC: C09D7/61
Filed: 1924-02-11
Abstract: 220,239. Semenza, B., Semenza, J., and Welch, P. J. Feb. 11, 1924. Paints. - A paint comprises red lead oxide, plaster of Paris, linseed oil, rosin oil or turpentine and Japan drier.
Patent GB-328652-A (GB)
Title: Improvements in centrifugal dust separators or extractors
IPC: B04C5/28
Filed: 1929-02-02
Abstract: 328,652. Simon, Ltd., H., and Watts, G. Feb. 2, 1929. Density separators.-Centrifugal dust extractors have a number of conical cyclone separators incorporated in one unit, the arrangements being such that substantially equal pressures are maintained in the closed dust collecting chamber and in the space to which the clean air from the cyclones is delivered. The cyclones d are arranged in a chamber b between the clean gas chamber a and the dust chamber c. The dust laden gas enters the chamber b and passes tangentially into each cyclone by its inlet h; clean air passes into the chamber a, while the dust drops into the chamber c. The diameter of the clean gas outlet e of each cyclone and the diameter of the dust outlet 7 are fixed so that pressures in the chambers a, c are approximately equal. A lattice frame i is arranged in the chamber b to remove any dust which may settle in that chamber. The frame carries brackets n with pins m which travel up arms o and so lift the frame when it is moved in one direction, but pass under the arms o when the frame is moved in the other direction. During this latter movement the settled dust is conveyed to the outlet j and the conveyer k. A similar lattice frame t is arranged in the chamber c and it conveys the dust to the conveyer w. The frames i, t may be reciprocated by the. crank pin x, connecting rod y, and bell crank lever z.
Patent GB-289189-A (GB)
Title: Improvements relating to the production of seamless tubes
IPC: B21B23/00
Filed: 1927-02-08
Abstract: 289,189. Alvermann, E. Feb. 8, 1927. Rolling tubes.- Seamless tubes are produced by rolling a pierced billet in a pilger mill a to produce a thick walled tube which is cut into lengths by a hot iron saw d the lengths being passed through a furnace c and finished on a stationary mandrel in a double groove two high mill b.
Patent GB-344169-A (GB)
Title: Improvements in electric pocket and hand lamps
IPC: F21L4/00
Filed: 1930-02-03
Abstract: 344,169. Battery lamps. ELEKTROTECHNISCHE FABRIK SCHMIDT & CO., GES., Bodenbach-on-Elbe, Czecho-Slovakia. Feb. 3, 1930, No. 3649. Convention date, Feb. 8, 1929. [Class 39 (ii).] An electric battery lamp is provided with an insulating strip 5 on which are mounted a contact bridge 7 provided with a contact 11 for a hand switch and split blade contacts 10 for one battery terminal, and a disc contact 13 cooperating with the centre terminal 2 of the lamp and having a further blade contact 15 for the other battery terminal. The strip 5 which extends over a small portion of the casing wall is secured thereto by tongues 4, a further insulating strip being pro. vided between the casing and strip 5.
Patent GB-943103-A (GB)
Title: Improvements in machines for manipulating webs of stationery
Inventor: TAYLOR DONALD IVOR
IPC: B41L47/24
Filed: 1961-01-31
Abstract: 943,103. Typewriters. ALACRA Ltd. Jan. 31, 1962 [Jan. 31, 1961], No. 3686/61. Addition to 875,142. Heading B6F.  In a typewriting, tabulating, accounting, adding, calculating or addressing machine, having a solenoid for advancing, directly or indirectly, record material step-by-step, energized by a succession of electric pulses produced by a notched flexible band 40, in Fig. 6, whereby the energization of the solenoid is initiated by push buttons or keys, such as 56, Figs. 2, 6, the solenoid 22, is of the rotary type in which reciprocatory movement of the armature is translated into oscillatory rotary motion of an output member 23, Fig. 2, attached thereto. The output member has a clutch connection to a driven member 26, which through a gear train 27-29, drives a platen shaft 10, including pin-type record material feeding devices (not shown) and through a shaft 37 and gears 38, 35, 36 a pin wheel 34, engaging drivingly the notched flexible band 40, which is trained over a block 41 and held thereon by a hinged guide plate 42. At the side of the block there are two microswitches 44, 45, one above the other, engaging notches 47, 52, Fig. 6, with their respective rollers 46, 51. Switch 44 is operated by a series of notches 47 in the band to stop the operation of the solenoid, when the next line is advanced to the typing position the line spacing being initiated by the operation of the carriage return or turn-up key, push-button or lever. The push-button 56, overrides the programme of the band and serves to operate the solenoid to either discard a form or to bring the first line of a new form into the typing position. The solenoid is operated by low voltage direct current and the circuit includes a mains transformer and a rectifier housed in the bottom of the machine. Specification 408,125 is referred to.
Patent GB-488481-A (GB)
Title: Improvements in or relating to windlasses and the like
IPC: B66D1/26
Filed: 1938-02-05
Abstract: 488,481. Winches. NORDLANDER, C. G. Feb. 5, 1938, No. 3708. Convention date, June 18, 1937. [Class 78 (v)] In windlasses &c. of the type having two winding drums which at the ends facing each other are coupled by a differential gear &c. with a braking device so constructed that by applying the same the drums are rotatable only in opposite directions, and by disengaging same the drums may be rotated in the same direction, a single operating handspike 9 is provided. The spike 9 is pivoted by a spindle 13 to move laterally about a lower part 10 which is itself hinged at 12 to swing backward and forward. The spike 9 is locked in a vertical plane by a plate 25 slidable on the part 10 and abutting against the end of a horizontal fixed rail 28 having a sloping top. The plate 25 can be raised against the action of a spring 23 by a bar 21 pivoted to a handle 22. The brake strap 8 is attached at'one end 14 to the part 10 and at the other end to a rod 15 passing through a hole 17 in the frame 3. The strap 8 is tightened by the pressure of the forked bottom of the part 10 against a nut 19 on the rod 15 when the spike 9 is put in the vertical position, and a spring 20 loosens the strap when the spike 9 is tilted back. Each drum 1, 2 has a coned end in which fits the cone 35 of a clutch, the cones 35 being slidable on, but rotatable with, the drum shaft 4. Arms 44 each pivoted at points 45, embrace a swing ring 40 on the cone boss to slide the cones, the arms 44 being connected to the spike 9 by links 47, 48. The spike 9 with its rod 21 moves in a T-slot member 32. Movement of the spike to the right in the aisle 30 of the T-slot causes the clutch of drum 1 to grip and drum 2 to be free of its shaft 4. The strap 8 holds the epicyclic cage stationary, thus causing the drum 2 to turn in the opposite direction to drum 1. When the spike is put in aisle 31 of the T-slot the direction of rotation of each drum 1, 2 is changed but when the spike is in the middle position both clutches are free. When the spike is brought into the leg 29 the brake is loosened, both clutches are engaged, and the drums rotate both in the same direction. The rod 21 is notched at 33 to engage the front edge of the T-slot while it is in the aisles 30 and 31, but can be raised by the handle 22 when the spike is placed centrally by the provision of a recess 34 in said edge.
Patent GB-498375-A (GB)
Title: Combined advertisement-stand and letter-balance
IPC: G09F7/02
Filed: 1938-02-05
Abstract: 498,375. Advertising; letter-balances; date indicators. JONAS, W., and GUTMANN, K. Feb. 5, 1938, No. 3714. [Classes 3 (ii) and 143] [Also in Group XIX] A combined advertisement stand and letterbalance which can be collapsed flat for despatch in an envelope, comprises a cardboard sheet folded to form a collapsable tent-shaped body 6, the top wall of which is reinforced by a bar 9 riveted thereto and forming a support for the letter-balance. This consists of rods 10, 11 pivotally mounted on a rod 9a and connected to a socket-member 12 forming a support for a carrier rod 17 of a letter-tray 24 consisting of a pair of arms pivoted together in cross formation. The rod 11 is suspended from a spring 20 and carries a graduated scale 13. For despatch, the arms of the tray are pivoted so as to become parallel and the rod 17 is inserted in a hole 23 in the top wall of the body 6. A rubber ring 26 is stretched over one of the arms of the tray 24 for securing bulky articles such as cardboard tubes 25. Rotatable calendar discs 32, 33, 34 are mounted on the rear of the front wall of the stand and viewed through corresponding windows.
Patent GB-376671-A (GB)
Title: Improvements in wheels for railway vehicles
IPC: B60B17/02
Filed: 1932-02-08
Abstract: 376,671. Vehicle wheels. MICHELIN ET CIE, Clermont-Ferrand, Puy-de-Dome, France. Feb. 8, 1932, No. 3756. Convention date, March 23, 1931. [Classes 144 (i) and 144 (ii).] A pneumatic or other resilient tyre B for use on railway vehicles is fitted so as to have its side-wall in permanent engagement with the rim-flange 2, the outer edge of which forms the rail guideflange 4. Either the tyre-wall, or the flange 2, may be faced with a strip 3 of reinforced rubber' or like wear-resisting material. In the modification shown in Fig. 5, the rim is of stepped formation to receive a tyre having beads 6, 7 of different diameters.
Patent GB-329009-A (GB)
Title: Improvement in machines for punching statistical record cards
Filed: 1929-02-05
Abstract: 329,009. Marks, Sir G. C., (Accounting & Tabulating Machine Corporation). Feb. 5, 1929. Selective punching-machines. - In a machine for punching statistical cards a hand-set switch is provided which in normal position connects circuits for keyboard actuation and in another position disconnects the keyboard circuits and establishes circuits which allow the machine to punch a number of consecutive cards with similar data. A trip solenoid 37, with key 32, actuates the punch-operating mechanism and the card-feeding mechanism. The carriage return mechanism comprises a block 38, connected by a tape 44 to a solenoid 45, which, when energized, is clutched to a constantly rotating shaft 46 to pick up and move the selector carriage to the left. Normally a lever 47 causes contacts 48, 49 to be closed rendering the keyboard operative. Depression of the carriage-return key 31 energizes a relay solenoid 52, and an armature 53 rocks to move the lever 47 to close contacts 48, 50 and to open the common line circuit to prevent actuation of the keyboard, and closes circuit through solenoid 45 to move the carriage to the left until a block 40 moves the lever 47 to original position. During the return a lever 55 is rocked to release the selector latch-bars to wipe out the set-up. The back space mechanism comprises a bar 58 connected to a lever 66 and a tape 68 joined to a solenoid 69. When the solenoid is energized the drum is clutched to the shaft 46 and the bar 58 is moved to the left and teeth 61 engage a pawl to move the carriage back a step and engage a pawl 63 to actuate the lever 55 to wipe out the set-up. Depression of the back-space key 30 closes a circuit through a relay solenoid 70 and makes contacts 75 which close circuit in a solenoid 69. As the lever 66 moves, a hub 77 causes contact 75 to be broken and the parts to be restored by a spring. The trip magnet 37 is energized on depression of the key 32 and rocks a lever 81 to throw in a clutch 85 to start the machine. On the shaft 85<1> is a commutator 86 which closes contacts 88, 89 near the end of each cycle of the machine. The switch has three pairs of contacts and a movable triple contact-bar 90 and is wired as shown in Fig. 2. In the left-hand position of the contactbar the switch closes circuits for keyboard control of the numeral and letter, space, trip, backspace and carriage-return circuits. In the righthand position these circuits are opened and the circuit through the trip magnet is completed so that a finger 83 is withdrawn to close the clutch for continuous operation of the machine. The carriage-return circuit is opened to prevent wiping out the set-up.
Patent GB-229849-A (GB)
Title: Improvements in tyre-inflator pumps
IPC: F04B33/00
Filed: 1924-02-16
Abstract: 229,849. Rider, J. J., and Lloyd, D. C. Feb. 16, 1924. Actuating pumps by hand power; oscillating- cylinder pumps.-A tyre-inflating device operable by levering action is provided with means enabling it when in use to be anchored detachably and readily to a part of the vehicle. The pump barrel n, Fig. 2, is pivoted between struts a on a bolt o, and its piston rod is actuated by a hand lever j pivoted at the other end of the struts, one of which is extended to form a handle k by which the frame may be held firm while the pump is oscillated. Between the struts at the lower end is bolted a flanged box containing laminated or other non-metallic material c, the box and a stud g forming the ends of a hook f and being adapted to engage the footboard or other part of the vehicle. Fig. 6 shows a pump in which the struts are adapted to engage adjacent spokes x, y, of a wheel by the provision of an angled fixture a<3> carrying non-abrasive material a<4> and a block a<5> of similar material carried at the strut ends. Alternatively, the struts may be anchored between the hub and felloe of a wheel. A clamping-device may be provided.
Patent GB-229334-A (GB)
Title: Improved manufacture of chlorine
IPC: C01B7/07
Filed: 1925-02-13
Abstract: Concentrated or pure chlorine is obtained from a mixture, such as that resulting from the Deacon process, by exposing the mixture to the action of a powerful adsorbent such as activated carbon, and afterwards extracting the adsorbed chlorine by heating, exhaustion, or both.  As moisture hinders adsorption, the gas mixture is dried, say by strong sulphuric acid, and the adsorbent is also dried.  The first 25 per cent, or so, of the chlorine extracted from the carbon &c. is impure, and is re-treated, either alone or with the original mixture.  A series of adsorption chambers may be worked on the counter-current principle; or the adsorbent may travel during both the adsorption and extraction stages.