baber/WOPTO huggingface dataset:
Patent GB-496998-A (GB)
Title: Improvements in and relating to centrifuges
IPC: B04B1/02
Filed: 1937-03-10
Abstract: 496,998. Centrifugal machines. ELKINGTON, H. D. (Erkensator Ges.) March 10, 1937, No. 7106. [Class 23] A centrifuge for the purification of paper pulp and the like has two or more drums fed consecutively and provided with interiorly projecting rings for assisting the formation of cushions of fibres in which the heavy impurities are embedded. To permit ready access for cleaning, the part of the cover carrying the inlet 19 and the splash flange 20 is hinged on the pin 25 and can be lifted by the handle 23. The material supplied through the inlet 19, impinges on an accelerating disc 17 which diverts it, tangentially, to the wall of the drum. The disc 17 is removably mounted on the top of the centrifuge shaft and rotates with it. Straight radial ribs 18 or curved ribs are provided on the upper surface of the disc. The machine shown in Fig. 1 has two drums ; the outer drum 1 has a straight wall and the inner drum has two cylindrical portions the upper portion being of less diameter than the lower. In a modification the disc 17 is provided with a cover 26, Fig. 7, attached to the feed inlet 19 and situated very close to the top of the ribs 18. This cover and the inwardly inclined ring 16 at the top of the drum retain any spray formed within the drum. In another modification the disc is shaped to conduct the supply of material downwards, and the cover of the disc is fixed to the ribs or other supports, so that the disc and cover form a detached prolongation of the stationary inlet 19.
Patent GB-1131242-A (GB)
Title: Improvements in or relating to spray-drying apparatus
Inventor: ASPERY BRIAN GEORGE
IPC: B05B1/34
Filed: 1965-02-18
Abstract: 1,131,242. Spray-producers. GENERAL FOODS Ltd. 18 Feb., 1966 [18 Feb., 1965], No. 7145/65. Heading B2F. A nozzle suitable for use in a spray-drying tower comprises a body portion I provided with a liquid inlet passage 2, a tungsten carbide insert 5 loosely mounted within a cylindrical bore 4 in the body I, a cap member 8, and a plate 11 which is adapted to be screwed down onto the body 1 so as to lower the cap 8 and compress a pair of resilient sealing members 9 and 10 located between the insert and the body. The liquid reaches the outlet 6 in the insert .5 via an annular groove 3 and a pair of tangential passages 7 which cause the liquid to be discharged as a whirling spray. The insert, when worn, may be easily replaced and may be resiliently supported by the members 9 and 10.
Patent GB-1179477-A (GB)
Title: Improvements in or relating to Faller Bars for Textile Combing Machines, and other Comb-Like Members
Inventor: MANN MATTHEW KENNETH
IPC: D01H5/14
Filed: 1967-02-15
Abstract: 1,179,477. Faller bars. PLASTEX Ltd. 30 Jan., 1968 [15 Feb., 1967], No. 7148/67. Heading D1N. A faller bar 10 or other comb like member which has a synthetic resin or plastics body part in which is embedded at least one longitudinally extending metal strengthening member 14, also has a metal plate 18 projecting beyond each end of the body part for engagement with parts of the machine with which the bar is used. Each metal plate may have a pair of parallel tang pieces 20 (Fig. 4) between which the end of the metal member 14 extends, one or more holes being drilled in the tang pieces so that the synthetic material during moulding is caused to extend through the holes to securely anchor the plates. Alternatively each plate has one tang part (Fig. 10) which extends in parallel with the adjacent end portion 30 of member 14. Either the plates are separate from the member 14 or else the member 14 consists of separate pieces spaced apart slightly to allow for breakage of the body part at a predetermined overload point depending on the synthetic material used. The member 14 is exposed through holes 26 for discharging static electricity through contact with a metal part of the machine.
Patent GB-481046-A (GB)
Title: Improvements in coin-inlet mechanism for use on prepayment meters for operation by coins of different values
IPC: G07F15/02
Filed: 1937-03-11
Abstract: 481,046. Prepayment mechanism for meters. LANDIS & GYR AKT.-GES. March 11, 1937, No. 7220. Convention date, Oct. 9, 1936. Addition to 480,552. [Class 27] In prepayment meter mechanism in which a coin-actuated slide 20 effects the setting of a pin bearing slide 29 movable transversely to the slide 20 in a rotary coin drum 18 as described in the parent Specification, the setting of the slide 29, in accordance with the value of the coin inserted, is determined by the abutment 31 thereon engaging slots 23, 23<1>, 23<11>, 24, 25 in a disc 84 rotated by the movement of the slide 20, instead of slots formed in the coinactuated slide itself. The disc 84 moves at a greater velocity ratio than the slide 20 so that a greater space is provided for arranging the slots thereby permitting the use of a larger number of coins. The disc 84 is rigid with a gear-wheel 85 which engages rack teeth 82 formed on one side of a slot 81 in the slide 20. In a modification, the disc 84 is connected to the slide 20 by a spring metal band which rolls up and unrolls. The slide 29 has pins 33, 34, 35 which act on a pair of pinions as described in Specification 481,048, the slots 23 ... 25 being arranged for pennies, sixpences, shillings, florins, and half-crowns.
Patent GB-1445234-A (GB)
Title: Ventilation and heating system for motor vehicles
IPC: B60H1/00
Filed: 1974-02-18
Abstract: 1445234 Motor vehicle heating and ventilating systems FORD MOTOR CO Ltd 18 Feb 1974 [5 March 1973] 7235/74 Heading F4V In a motor vehicle, a heating and ventilating system comprises a centrifugal blower 2 having an impeller subdivided by a partition 3, a fresh air inlet 4, a recirculated air inlet 5, an air heating heat exchanger 9 and air supply ducts 7, 8 one for each side of the vehicle. The ducts 7, 8 are disposed one above the other and each is divided by a vertical partition 11 into a passage containing a portion of the heat exchanger 9 and a by-pass. Independently operable coaxial flaps 12, 13 are provided in the ducts 7, 8. The heat exchanger is, in use, supplied continuously with engine coolant.
Patent GB-955366-A (GB)
Title: Improvements in or relating to a telescoping universal joint
IPC: F16D3/223
Filed: 1962-02-23
Abstract: 955,366. Universal joints. DANA CORPORATION. Feb. 23, 1962 [March 6, 1961], No. 7264/62. Heading F2U. In a constant velocity universal joint of the kind having an even number of drive-transmitting balls 34 in grooves in inner and outer members 14, 12 which are axially and angularly movable relative to each other and to the balls, the axes of adjacent grooves in each member are oppositely inclined towards the respective member axis, the axes of mating grooves are oppositely inclined to the same extent on coincidence of the member axes, and a cage 16 maintains the balls in a single bisector plane determined by the grooves. The cage may be free, or lightly non- positionably engage the inner and/or outer members. The outer member 12 has a substantially cylindrical bore 24 and the two members are constructed so as to allow interference-free relative angular and axial movement therebetween. As shown, the inner and outer members 14, 12 each have oppositely inclined sets of substantially straight grooves 30, 32 and 26, 28 respectively, the alternating groove inclinations in each member being of equal angle and towards common points on the member axis. To produce an axial urging of the inner and outer members relative to each other, one half of the grooves may have a different inclination from the other half, or, whilst retaining the ball cage, unequal spiral or skew angles may be introduced to some or all of the grooves. Reference has been directed by the Comptroller to Specification 870,758.
Patent GB-364421-A (GB)
Title: Improvements in electric heaters
IPC: F24C3/00
Filed: 1931-03-09
Abstract: 364,421. Wire resistances; heating liquids &c. by electricity. BADER, K., 65, Cunostrasse, Grunewald, Berlin. March 9, 1931, No. 7267. Convention date, March 17, 1930. [Class 37.] A high temperature immersion heater for metal baths and the like comprises a ceramic resistance support composed of separately burnt cubes 5 of ceramic material centrally bored and arranged in series, the resistance wire being threaded through the central bore and the whole support surrounded by an envelope 4 of heat permeable and non- oxidizable material such as chromium, nickel, molybdenum or iridium foil, and placed in a flexible casing 2 the joints 1 of which are welded. The element possesses a slight degree of pliability and the metal foil 4 prevents oxide slag &c. falling between the ceramic supporting blocks and shortcircuiting the resistance. The end support of each series of supports is provided with lateral slots from the central bore to the side face to permit the resistance wire being passed from one series of supports to the next. Moreover, an additional row of blocks is provided between the housing and the end row of the blocks containing resistance wire.
Patent GB-235654-A (GB)
Title: Improvements in or relating to variable inductance devices
IPC: H01F21/00
Filed: 1924-03-21
Abstract: 235,654. Igranic Electric Co., Ltd., Curtis, A. H., and Dandridge, G. F. March 21, 1924. Inductances. - A variometer comprises a spherical rotor coil 1 mounted within a spherioal stator coil 2 secured within a cylindrical protective member 5 of impregnated cardboard, papier machÚ or other insulating material. The stator and rotor are each in two halves joined by rings 3, 4 respectively. The, stator ring may be split circumferentially, the two halves thereof being joined by binding pins. The ring 4 is secured to the cylinder 5 by shouldered bushes 6 and 7 and nuts 10; washers 9 are interposed between the shoulders and the ring. Spindles 12, 13 secured to the ring 3 are mounted in the bushes 6, 7. A knob and scale, not shown, are mounted on the spindle 13. The cylinder 5 may be formed from a flat sheet, the ends of which are brought together and joined by strips riveted to one edge and bolted to the other; in this case the bolts may serve as terminals. Alternatively the cylinder may be made in several pieces. The two halves of the stator may be permanently connected in series or parallel or may be brought out to separate terminals to allow change of connections. The coils may be wound spirally or in a self-supporting manner. They are impregnated with a binding medium which serves to secure them to their respective rings. The coils may be strengthened inside and outside by pieces of insulating tape which are impregnated at the same time as the windings. In a modification the ring 4 is formed in one with the cylinder 5; in this case the cylinder and ring are split circumferentially and the two halves joined by binding pins. The cylinder may be shorter than the diameter of the stator.
Patent GB-267946-A (GB)
Title: Improvements in or relating to centrifugal friction couplings
IPC: F16D43/10
Filed: 1927-03-16
Abstract: 267,946. Haglund, E. A. March 8, 1926. [Convention date]. Clutches, friction.-Centrifugally-actuated disc clutches, adapted to be built in a driven toothed wheel, pulley, &c. 1, comprise a sleeve. 2 on the driving-shaft and one or more weighted levers 3 pivot.ed thereon and provided with a projection 5 bearing on a slidable pressure-member 6, the mechanism being enclosed in an oil-retaining housing 7. In one form, the levers 3 are pivoted on pins 4, Fig. 1, while in a modification, they turn about lugs 10, Fig. 4, coacting with an abutment 11 on the fixed sleeve 2. Fig. 4 shows also a sleeve 8, slidable on the shaft and through the housing 7, wedges 9 on the sleeve coacting with the levers 3 to disengage the clutch. The disengaging-means is applicable also to the construction shown in Fig. 1.
Patent GB-641945-A (GB)
Title: Improvements in or relating to the production of feed gases for the synthesis of hydrocarbons
IPC: C01B3/40
Filed: 1947-03-17
Abstract: <PICT:0641945/III/1> Feed gases for the synthesis of hydrocarbons consisting of hydrogen and carbon monoxide are obtained by oxidizing a hydrocarbon gas such as methane in the presence of a fluidized solid catalyst of finely-divided iron, cobalt, nickel, or combinations of these with or without zinc, under 200-300 p.s.i. pressure and between 1200-2200 DEG  F., by means of a reducible metal oxide, preferably iron, present in such amount as to furnish one atom of oxygen combined as reducible oxide per atom of carbon. The iron oxide is formed and maintained by circulating a small percentage of the iron through an oxidation zone, while maintaining the greater part, at least 70 per cent and preferably 90-95 per cent of the catalyst in the form of a metal.  The hydrocarbon gases enter reaction zone 1 via pipes 2 and 9, the product being withdrawn at 3. The iron catalyst is circulated through pipe 4 to the oxidation zone 5 and back via pipe 8 and 10. A heat transfer system containing fused salt is defined by the closed circuit 11, 12, 13, 14, 15, 16. Preferred catalysts are iron-nickel or iron-zinc combinations wherein 90-95 per cent is nickel or zinc and the remainder iron.  Preferred operating conditions are under 100 p.s.i. pressure and at a temperature between 1700 DEG  and 1900 DEG  F.
Patent GB-574386-A (GB)
Title: Improvements relating to anchoring devices for industrial trucks
IPC: B62B5/04
Filed: 1943-05-10
Abstract: 574,386. Brakes for trucks. BASSICK CO. May 10, 1943, Nos. 7379 and 7380. Convention dates, May 4, .1942, and Oct. 5, 1942. [Class 103 (i)] A device for anchoring trucks such as are used in factories or for travelling platforms or scaffolds used in assembling aeroplanes or other structures, comprises a shoe carried by a plunger mounted on the underpart of the truck and 'arranged to be forced against the floor or a rail upon which the truck travels, by a pedaloperated toggle acting through a spring. As shown, a shoe 24 shaped to engage either the floor or a rail 19 upon which wheels of a truck travel, is secured by a cotter 33 to a plunger 32 slidable in a socket 23 bolted to the under part 10 of the truck. One member 47 of a toggle is pivoted at 50 to the socket and at 52 to the other toggle member 48. This member is of U-form with a pedal extension 49 and embraces and is pivoted at 54 to a collar 35 slidable on the plunger against the action of a spring 34. Normally, the toggle is broken and the plunger with the shoe 24 is held in the raised position by a spring 46. When the toggle is straightened, the plunger is depressed through the spring 34, the toggle moving slightly beyond the deadcentre position in which it becomes locked. The truck may be provided with castor wheels at the four corners, anchor devices being mounted at one pair of diagonally opposite corners near the inner side of a wheel. In a modification, the shoe is cup-shaped for engagement with the floor only. The chamber 41 in which the plunger slides may be provided with an upper partition with a restricted port so as to act as a dashpot to cushion the upward movement of the plungers.
Patent GB-119853-A (GB)
Title: Improvements in or relating to Acetylene Gas Generators for use in connection with Internal Combustion Engines.
Inventor: KLER HANS MAGNUS
IPC: C10H15/12
Filed: 1918-05-02
Abstract: 119,853. Kiµr, H. M., (Assignee of Nielsen, A. A.). Sept. 24, 1917, [Convention date]. Solid supply to liquid.-In a generator for supplying acetylene to an internal-combustion engine, the mechanism f for feeding the carbide y to the water compartment e is driven from the engine by a shaft q, clutch o, p, shaft n, and worm-gearing m, k. The gas is led in a zigzag path between plates h to free it from particles of lime and water, and is delivered to the engine through a spring-loaded valve x which opens under the suction of the engine. A diaphram r, exposed to the pressure of the gas, disengages the clutch member p and stops the carbide feed if the pressure rises beyond a predetermined valve. The endless-band conveyer f may be replaced by a worm or other mechanical conveying-device.
Patent GB-205461-A (GB)
Title: Improved manufacture of stencil sheets for autographic and typewriting duplication purposes
IPC: B41N1/24
Filed: 1923-03-14
Abstract: 205,461. Koresca, W. Oct. 11, 1922, [Convention date]. Water paints.-A stencil is prepared from a sheet of Japanese paper coated with a composition including protein and suitable tempering agents such as natural and artificial soft resins, e.g. colophony or coumarone resin, fatty acids, and fatty substances or similar esters of high molecular weight, oils, soaps, waxes, such as wool-fat, hydrocarbons, natural or artificial caoutchouc masses, gutta-percha and balata. If the substance chosen is soluble in a protein-solvent the dissolving is done simultaneously; otherwise, the -substance is added to the protein solution in the form of a colloidal solution, an emulsion or a suspension. Also, in the case of substances insoluble in protein-solvents, a soluble product generated by transformation or conversion of the substance may be added to the solution of protein and, after the formation of the coating, be retransformed into the original substance, e.g. carbonic or sulpho-acids or resins may be introduced in the form of soaps and afterwards transformed into the free fatty acids. When ammonium soaps are used the transformation may be effected by heating. In a preferred form the substance used is an ammonium soap or a mixture of ammonium soaps of different fatty acids and as a coagulating medium formaldehyde is used. Suitable proportions are given for a coating solution comprising a solution of protein, a solution of stearate of ammonium, a solution of oleate of ammonium and water.
Patent GB-395302-A (GB)
Title: An improved massage roller
IPC: A61H9/00
Filed: 1933-03-13
Abstract: 395,302. Massage rollers. NAYLOR, J. H., 36, Rangitoto Avenue, Remuera, Auckland, New Zealand. March 13, 1933, No. 7540. [Class 81 (ii).] A massaging - device comprises a roller E, of rubber or other suitable material, having a number of longitudinal rows of perforations J extending radially inwards from its periphery to its centre, mounted on a hollow spindle A having a longitudinal row of perforations D spaced the same distance apart as the perforations J. The spindle is closed at one end and bent round at the other to form a handle B which is adapted to be connected to an air suction device. The perforations J may be increased in cross-sectional area towards the periphery of the roller, which may also be mounted on a tubular lining F of rigid material or consist of a rigid core with a peripheral coating of rubber.
Patent GB-310922-A (GB)
Title: Process for covering roads and tiles and for manufacturing tiles, plates, blocks and the like
IPC: C08L95/00
Filed: 1929-03-08
Abstract: 310,922. Naamlooze Vennootschap Mijnbouw-en Cultuurmaatschappij Boeton. May 3, 1928, [Convention date]. Processes.-Relates to processes for covering roads and tiles and for manufacturing tiles, plates, blocks, &c. by rolling or moulding under pressure a plastic mass containing bitumen and a filler and consists in increasing the adhesiveness of the bitumen by the addition of low boiling solvents and then temporarily decreasing the adhesiveness of the mass, to prevent sticking to the mould or roller, by distributing water throughout it, and in expelling the water by the application of pressure in the subsequent treatment. The mass may be heated to a temperature not exceeding 100‹ C. prior to the application of pressure. The bituminous mass may be a natural asphalt, such as boeton asphalt limestone, or asphalt limestone of Val de Travers, or an artificial mixture of bitumen and filler. Examples of solvents are benzene, petrol and carbon disulphide. The mass may be applied to moist underlayers, for instance of concrete. Examples of suitables proportions are (1) 1000 kgs. of boeton asphalt limestone having a 30 per cent bitumen content, 3000 kgs. of gravel, 40 kgs. of flux, 80 litres of carbon disulphide and 120 litres of water. (2) 1000 lgs. of ground boeton asphalt limestone with a 30 per cent bitumen content, 3000 kgs of gravel, 50 kgs. of flux, 100 litres of carbon disulphide and 120 litres of water. Specification 310,923, [Class 22, Cements &c.], is referred to.
Patent GB-595015-A (GB)
Title: Improvements in or relating to method of making hollow poppet valves
IPC: B21K1/22
Filed: 1945-03-26
Abstract: 595,015. Making poppet valves. THOMPSON PRODUCTS, Inc. March 26, 1945, No. 7589. Convention date, Sept. 2, 1944. [Classes 83 (ii) and 83 (iv)] Extruding ; forging-dies.- A method of making a hollow poppet valve comprises partially extruding a billet having a solid end, around a rigid cylindrical mandrel so as to form successively a solid valve-stem end portion and an axially aligned hollow valve stem portion, terminating the extruding operation before all the billet has been extruded, removing the mandrel and forging the unextruded portion to form the valve head. A cylindrical billet is placed in a die 11 and partially extruded through a bottom opening in the die by means of a ram 13, Fig. 5, having a depending mandrel 13b which acts as a piercing punch before the undersurface 13a of the ram comes into contact with the billet. The lower end of the hollow stem 16 thus formed is then squared as at 16g, Fig. 7, and the partially formed valve placed in a die 14 where the remaining upper part of the blank is upset by a punch 15 with a depending mandrel 15a to form part of a hollow valve head. The valve is then cleaned inside and out by means of sand blast, pickled in a pickling tank and polished on the inner surface. A coolant such as sodium is put into the hollow interior and a disc 26 is welded on to close the hollow head as shown in Fig. 12. The welding is preferably carried out by passing an electric current through the pressed-together portion 16 and 26. In the modification the forging punch 15 has a flat undersurface 18a, Fig. 8, except for the depending cylindrical mandrel, the valve head thus formed being solid except for a central bore, which is later closed by a welded-in plug 36, Fig. 19. In a further modification, the substantially solid-head form of valve shown in Fig. 19 is made from a billet having a blind bore. This eliminates the preliminary billet-percing action of the extrusion mandrel 13b.