baber/WOPTO huggingface dataset:
Patent GB-1349819-A (GB)
Title: Coke ovens
IPC: C10B25/20
Filed: 1972-05-18
Abstract: 1349819 Removing coke oven doors KOPPERS CO Inc 18 May 1972 [24 June 1971] 23529/72 Heading C5E [Also in Division F4] An arrangement for removing the doors of a coke oven and charging the oven comprises an outer tube 73 mounted in a larry car and having a hopper 95 formed at one side and charged from the larry car, a collar 101 which can be lowered to seal the tube 73 to a coal charging hole and means within the outer tube to engage and lift the coal hole lid 151 to allow the oven to be charged without allowing the escape of dust. A framework 13 secured to the larry carries a counter-weighted platform 35 sliding over the frame legs 15 and supporting an inner tube 69 by means of rods 59 and a tube lid 57. An intermediate tube 71, sealed to the outer tube by a ring 87, and to the inner tube by rings 83, 85 has an annular top 77 sliding on the frame legs 15. In the position shown in Fig. 1, the intermediate tube 71 rests on a ring seat 89 on the outer tube 73. The inner tube 69 is moved by a piston assembly 47 connected to the top of the framework, and carries a lifter device. The sealing collar 101 is moved downwardly to seal around the coal charging hole by a parallel linkage operated by pistons connected to the larry (Figs. 5 and 6). The inner tube 69 is moved downwardly by the piston arrangement 47, so that a lug 155 on the lid 151 engages a serration on the end of the tube 69. The lid lifter arms 139 are opened by contact with the lid. A piston arrangement 125 carried by the top 57 of tube 69 is operated to lower the pin 133 and close the lifter arms on to the stud 149 of the coal lid 151. The inner tube 69 and the coal lid 151 are raised by the piston assembly 47, the tube lid 57 engaging the top 77 and lifting it and the intermediate tube 71, so that coal may be fed from the hopper 95 to the oven, Fig. 6. When the charging is complete, the process is reversed, an hydraulic rotary actuator 123 oscillating the inner tube 69 and lid 151 to ensure a tight closure. The inner tube 69 and lid lifting arms 139 may be dropped independently of the outer sealing collar 101, so that the lid 151 of a coke oven may be raised to the position shown dotted in Fig. 1 for "dampering off"  while the larry car is moved to collect another coal charge.
Patent GB-1412158-A (GB)
Title: Surge arrester circuit for protection of line transmission  systems
IPC: H02H9/06
Filed: 1973-05-18
Abstract: 1412158 Voltage surge protective arrangements POST OFFICE 5 April 1974 [18 May 1973] 23792/73 Heading H2H An arrangement for the protection of repeaters in a communication system comprising two lines 4, 5 from high voltage surges comprises at least two gas discharge diodes 2, 3 connected in series between the lines 4, 5, a capacitor 6 being connected in parallel with the diode 3 and, if desired, a resistor 7 in parallel with the capacitor 6. In operation, when a high voltage surge appears across the lines 4, 5, the diode 2 breaks down, capacitor 6 charges up and diode 3 eventually breaks down so protecting apparatus connected to the lines 4, 5. As the voltage on the lines 4, 5 falls the diodes 2, 3 recover at a voltage higher than their normal recovery voltage due to the parallel connected capacitor 6. The arrangement can be used in a high frequency system since the capacitor 6 is normally disconnected from the lines 4, 5 by the diode 2. In a practical communications system each repeater has one such arrangement connected across the repeater and one each across the input and output leads thereof respectively. The diode 3 may be replaced by a plurality of diodes in series.
Patent GB-1288357-A (GB)
IPC: B65D75/28
Filed: 1971-04-19
Abstract: 1288357 Packages PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [14 March 1970] 23804/71 Heading B8C A package comprises an article, e.g. a circular discharge tube (10, Figs. 1 and 2) enclosed between two sheets 12, 13 of cardboard, the sheet 13 being folded at its corners as shown so as to provide four open side walls. The two sheets are initially congruent and may be partially assembled together before the article is inserted. In a modification (Fig. 4) two rectangular sheets (33, 36) are interconnected, the sheet (33) being folded along one side and two corners.
Patent GB-1426095-A (GB)
Title: Tobacco foil
IPC: A24B15/12
Filed: 1973-05-18
Abstract: 1426095 Reconstituted tobacco AUSTRIA TABAKWERKE AG 18 May 1973 [19 May 1972] 23856/73 Heading A2C Reconstituted tobacco foil is made by precipitating predominantly reconstituted tobacco particles onto the two screens of a double sheet former from an aqueous suspension, combining them and dehydrating by pressing and thermal drying. Typically a proportion of swellable tobacco ribs, fibres and raw plant materials are swollen in a first production phase in four or five times the quantity by weight of an enriched tobacco solution of 20-50% water-soluble tobacco raw material proportions and 2-4% water-soluble additives in a closed cycle of its own for a period of over one hour with a marked increase in volume, during which the tobacco and fibres absorb about 2 to 3 parts of a swelling solution so that 60-66% of soluble tobacco and additive and 34 to 40% of water are contained in the swollen tobacco ribs freed from the swelling solution. Additives e.g. carboxy methyl cellulose, cellulose itself, potassium nitrate, ascorbic acid, magnesium perborate, odourants, flavorants, fibrous glass or polyethylene may be included in the composition. As shown in Fig. 1 a sheet former 2 disposed downstream of nodule catcher 12 comprises two moving screens 25 between which the reconstituted tobacco foil is formed. Screens 25 subtend between them an angle of between 45 and 160‹. Suction boxes 22 remove excess liquor during foil formation. A foil consisting of several layers can be made by using the apparatus of Fig. 2 in which separating walls 26 sub - divide the space above the screens 25 so that, upon supplying differently composed solutions or suspensions through conduits 27, multi-layer foils are deposited on the screens 25.
Patent GB-1269232-A (GB)
Title: Improvements in or relating to packing pieces for distillation columns and extraction and absorption towers
Inventor: LEE WILLIAM STANLEY
IPC: B01J19/30
Filed: 1969-05-09
Abstract: 1,269,232. Packing elements for gas/liquid contact apparatus. JAMES A. JOBLING & CO. Ltd. 8 May, 1970 [9 May, 1969], No. 23859/69. Heading B1R. A packing element for a gas/liquid contact apparatus has a trunk portion 1 of circular cross-section and at one or, as shown, both ends a pair of outwardly flaring portions. The trunk portions may be solid or hollow and the elements may be made of glass or plastics material.
Patent GB-506312-A (GB)
Title: Improvements in and relating to corks or stoppers and to means for extracting them from bottles
IPC: B65D39/16
Filed: 1938-08-13
Abstract: 506,312. Stoppers. BLOCK, E. A. Aug. 13, 1938, No. 23942. [Class 125 (iii)] A bottle cork 3 is provided with means for its extraction comprising a metallic band 1 the ends of which are riveted or soldered together and inserted in a horizontal perforation 4 in the body of the cork. The cork is reinforced by two metal plates 5 secured by projections punched at the ends of the plates, slots 6 being provided in the plates for passage of the band 1. The band 1 may be doubled together and folded over on the upper end of the cork and a capsule placed thereover.
Patent GB-912136-A (GB)
Title: Improvements in x-ray units
IPC: H05G1/04
Filed: 1959-07-13
Abstract: 912,136. X-ray apparatus. MACHLETT LABORATORIES Inc. July 13, 1959 [July 24, 1958], No.23957/59. Class 98 (1). In an X-ray apparatus in which a supply conductor is disposed in the path of the beam, the conductor is of a material substantially transparent to the X-radiation, so that it forms no radiographic image. The apparatus shown is drawn along inside a pipe-line, for examination of annular welds therein. The anode 20 has a target 21 from which X-rays are emitted radially throughout the complete 360 degrees, passing through a cylindrical window 19 encircling the target. The tube is in a housing having two sections 11, 12, the section 12 being of thin aluminium or other material relatively transparent to X-rays. The anode has a finned radiator 22, and a suction fan 24, motor 25, and thermostat 23 are located in the upper part 11 of the housing. Cooling air is drawn in through inlet screens 26, and expelled through outlet 27. The supply leads to the motor and thermostat are formed as wide flat strips 34 of metal foil of X-ray-transparent material such as aluminium, beryllium, nickel, or magnesium, so as not to form any perceptible image on a radiograph. The strips have reinforced ends, and are connected at one end to cables entering through a conduit 30; at their other end they are held taut by springs 40. Since the housing shell 12 and the tube window 19 absorb some of the X- radiation, it is desirable that the strips 34 transmit the same wavelength band as the shell and the window, preferably the hard X-rays.
Patent GB-456929-A (GB)
Title: Improvements in the manufacture of internal combustion engine cylinders
IPC: B23P25/00
Filed: 1935-08-27
Abstract: 456,929. Machining internal-combustion engine cylinders. ROWLEDGE, A. J., Ellerslie, Trowels Lane, Mickleover, and WALKER, N. H., 26, Chevin Road, both in Derby. Aug. 27, 1935, No. 23968. [Class 83 (iii)] A cylinder A of an internal-combustion engine cylinder is machined under conditions which simulate the differential heating conditions of the engine when in use. Thus electrical heating elements B may be placed in the exhaust ports while the inlet side is cooled by the circulation of water through a casting C. The ends of the cylinder are similarly cooled by water flowing through castings D. If the work is to be rotated during machining, the heat may be supplied electrically through a commutator or slip rings. Other than electrical heating may be employed.
Patent GB-424783-A (GB)
Title: Improvements in modulating and amplifying devices in wireless valve circuits
IPC: H03C1/16
Filed: 1933-08-30
Abstract: 424,783. Valve circuits. WATTON, W. L., and BELL, L. H. BAINBRIDGE-, National Physical Laboratory, Teddington, Middlesex. Aug. 30, 1933, No. 24028. [Class 40 (v)] For intermodulation between currents or voltages of different frequencies and for amplifying changes in steady currents or converting such changes into varying alternating currents, use is made of a valve having a non-linear amplification factor such as a variable -mu valve. In the modulating arrangement shown, one frequency is applied at 1 to the grid and plate of the valve 4, the impedances or resistances 2, 3, being so proportioned that the circuit is balanced about the cathode. The other frequency is applied to the grid circuit at 7 and disturbs the balance, whereupon a modulated output appears in the anode circuit and may be utilized. If a carrier frequency is applied at 1 and the modulating frequency at 7 the arrangement acts as a carrier suppression system ; if, with 7 inactive the grid of 4 is biassed to an amount equal to the peak voltage of the input 7, 100 per cent modulation results. The invention is applicable to the production of sum and difference frequencies e.g. in beattone oscillators. For the amplification of steady currents the output of the balanced circuit is connected to an indicating instrument. A combination of valves in parallel may be used to obtain a non-linear amplification factor instead of a variable -mu valve.
Patent GB-631458-A (GB)
Title: Improvements in or relating to covering elements for roofs and walls
IPC: E04D1/18
Filed: 1946-08-14
Abstract: 631,458. Metal tiles; roofs. U.M.A.L. SOC. ANON. Aug. 14, 1946, No. 24115. Convention date, July 10. [Classes 20(iv) and 87(i)] A hexagonal aluminium &c. tile 1 is formed with inclined upstanding flanges 2-5 along its four upper edges and with inclined downturned flanges 6, 7 widened at 9 along its two lower edges. The tile is provided with nail holes 10, 11 and a slot 12 to receive an upstanding tongue 24 on a fixing plate 23 which may be fixed to the roof structure or engaged under overlapped tiles.
Patent GB-694947-A (GB)
Title: Improvements in the cooking of pieces of foodstuff in batter
IPC: A23L5/10
Filed: 1949-09-20
Abstract: 694,947. Frying apparatus. SMETHURSTS GRIMSBY, Ltd., SWALLOW, M. C., WARD, J. B., and WARD, F. W. Sept. 19, 1950 [Sept. 20, 1949], No. 24119/49. Class 28 (i). [Also in Group XXX] Pieces of foodstuff, e.g. fish, are cooked by enveloping each piece in batter, setting the batter by submerging the pieces in succession in a stream of hot oil, which also moves the pieces away from the point of immersion, and cooking the foodstuff and batter by moving the pieces through hot oil while completely submerged. In the apparatus shown, pieces of fish a are dropped on to paddles 14 attached to a rotatable drum 5 and containing batter scooped up from a trough 2 whereby they are covered with batter and deposited in one end 6 of a trough 7 containing hot oil which is sufficiently deep to prevent the pieces reaching the bottom. The pieces are moved away from the point of immersion partly by circulation of the oil and partly by rigid members on a conveyer 12A until they approach a shallow portion 8 of the trough, when they are engaged by plates 29 of a conveyer 12B and passed through hot oil for cooking purposes, the cooked pieces being finally moved up a sloping end 10 of the trough and deposited on a conveyer 13. The circulation of the oil is produced by a pump 15 communicating with inlets 14a, 14a<SP>1</SP> and 14b, 14b<SP>1</SP> respectively at the deep and shallow ends of the trough, the circulation system being so arranged that fresh oil may be taken in from reservoir 17 or the trough emptied through pipe 23. The conveyers are driven through belt drives by a motor 27 and the plates 29 on conveyer 12B have pieces of chain mail 30 which keep the trough clean. The oil in the trough is heated by individually controlled heaters 33, 34, 35.
Patent GB-1011334-A (GB)
Title: Improvements in pile driving hammers
Inventor: WILLIAMS CYRIL LEWIS
IPC: E02D7/08
Filed: 1962-06-22
Abstract: 1,011,334. Pile driving hammers. COMPOSITE PILING and FOUNDATIONS CO., Ltd. June 21, 1963 [June 22, 1962], Heading E1H. A pile driving hammer is composed of a plurality of masses of metal 1, 2, 3, 4, 5 and 6 each with a layer 9 of plastic or rubber material therebetween. The mass 1 has a threaded stem 7 keyed to it at 8 which locates the masses 2 to 6 and retains them in position by lock nuts 10, 11  and washers 12. The layers 9 are of a crosssectional dimension less than that of the metal masses. The stem 7 is formed with an eye 13. A further embodiment described includes a plurality of rods to locate and secure the masses and a control stem extending to the mass adjacent the lowermost one. Specifications 1,011,331 and 1,011,332 are referred to.
Patent GB-204718-A (GB)
IPC: C10B51/00
Filed: 1923-09-28
Abstract: 204,718. Rude, J. Oct. 2, 1922, [Convention date]. Coking processes.-In the carbonization of fuel in a retort a by the direct action of hot gases which enter a heat exchanger f at h and pass through a chamber i and inlet pipe k to the retort a, these gases are heated by hot gases entering at d circulating in a chamber e surrounding a retort c and passing through an opening p into the heat exchanger which they leave at an outlet g. The semi-coke from the retort a is further gasified in the retort c from which the gases may be passed through a passage l to arrive with the heating gases in the chamber i or to an outlet m. Steam mav be blown into the coke at o and the water gas and ammonia may be separately withdrawn or may mix with the other retort gases and escape at l or m. If the semi-coke is too fine to prevent easy passage of the gases, larger pieces of coke or other fuel may be added to it at q.
Patent GB-1466097-A (GB)
Title: Polyurethanes
IPC: C08J7/046
Filed: 1974-05-31
Abstract: 1466097 Coated polyurethanes E I DU PONT DE NEMOURS & CO 31 May 1974 [1 June 1973] 24205/74 Heading B2E A coated polyurethane comprises a polyurethane which has been cured by the action of a sub-stoichiometric amount of a complex of 4, 4'-methylene dianiline and a salt selected from the nitrites and halides (other than fluorides) of sodium and lithium and sodium cyanide and which has a flexible coating on the surface thereof. The flexible coating preferably comprises an acrylic enamel, an alkyd enamel, a urethane lacquer or a two part urethane enamel. It is preferred to prepare the polyurethane substrate by reacting a polyurethane prepolymer with the methylene dianiline/salt complex at a temperature above that at which the complex dissociates. The salt forming the complex is most preferably lithium chloride or sodium chloride. Suitable acrylic enamels comprise 70 to 95% by weight of the enamel of an acrylic polymer containing units derived from a C 1-4  alkyl methacrylate and/or styrene, a C 6-12  alkyl methacrylate and/or C 2-12  alkyl acrylate, a C 2-4  hydroxyalkyl methacrylate and/or a C 2-4  hydroxyalkyl acrylate and an α, #-ethylenically unsaturated carboxylic acid and 5 to 30% by weight of the enamel of a compatible cross-linking agent e.g. a C 1-8  alkylated melamine formaldehyde resin or a polyisocyanate. The coatings may be prepared in a conventional manner and used in the production of automobile parts.
Patent GB-307041-A (GB)
Title: Improvements in actuating mechanism for stop-valves of the sluice type
IPC: F16K31/05
Filed: 1928-08-23
Abstract: 307,041. Karnath, K. March 3, 1928, [Convention date]. Electrically-actuated valves. - A stop valve more particularly for highpressure steam and actuating- mechanism therefor comprises a single or double disc 3 and valve gear for withdrawing the disc or discs 3 laterally from the seatings to give a small flow for heating up the piping and subsequently moving the discs axially to full open position ; the said valve gear includes a spindle 1, 20, a small electric motor 10, gearing 4, 5, 9, 11, and means 8 for manually actuating the spindle 1, 20. In the arrangement shown a control switchboard 15 comprises a motor starting and reversing switch 16 controlling a relay 13 between the mains 12 and the motor coils 14, and a switch 17 whereby the motor circuit can be opened at will to stop the valve in any open position. Between the parts 1 and 20 of the valve spindle there is disposed a sleeve 21 with helical-slots in which rollers on the screwed spindle 1 engage so that, in the opening movement, the spindle 1 during the first half of its upward travel rotates the sleeve 21 and the lower spindle 20 so as to withdraw the valve discs, as shown: further movement raises the sleeve 21, spindle 20, and valve discs to the full open position. When the motor has eased the dises, as shown, a pin 22 opens a switch 24 in circuit with the relay 13 and stops the motor; contacts are also bridged by the pin 22 to light a signal lamp 29 at tne switchboard 15. Further operation of the switch 16 is required to allow the motor to open the valve fully whereupon a limit switch 23 is opened to stop the motor, and a signal lamp 26 is lit. A lower limit switch 25 also stops the motor when the valve is closed, and lights up a lamp 27. The signal lights are extinguishable by a manual switch 30. Several arrangements of the gearing 4, 5. 9, 11 and hand wheel 8 are shown on the drawings.
Patent GB-313368-A (GB)
Title: Improvements in pulverised fuel burners
IPC: F23D1/00
Filed: 1928-08-24
Abstract: 313,368. Yarrow, H. E. Aug. 24, 1928. Pulverulent-fuel burners.-In order to obtain a short flame one or more of the constituents of the fuel mixture of a. pulverulent-fuel burner is passed along a channel having a Venturi-constriction provided with an opening or openings connecting the channel with a tube leading to the combustion space of the furnace. In the burner shown the pulverized fuel and primary air entering through the inlet C passes along a passage M between an outer tube H and an inner tube E and is met by the secondary air entering between inclined vanes D before entering the furnace at a discharge aperture S. The tube E is closed at its outer end by a flat or coned plate 0 and is made in two parts. having their adjacent edges shaped to form at a Venturi constriction in the passage M an annular constricted nozzle or nozzles N, through which some of the ignited fuel from the furnace will be drawn. The furnace end of the tube E is preferably fitted with an adjustable extension piece G. The inner part of the whirling fuel entering the furnace is consequently drawn back towards the tube E while the outer part is also drawn back by the reduction of pressure at a sleeve U surrounding the discharge aperture S. Helical or inclined vanes may be provided in the passage near its outlet. The air entering through the vanes D is regulated by means of a sliding damper P. The pulverized fuel and primary air may alternatively be introduced through the vanes D and the secondary air through the passage C.
Patent GB-294015-A (GB)
Title: Means for damping torsional vibrations
IPC: F16F15/16
Filed: 1927-09-16
Abstract: 294,015. Sandner, E. Sept. 16, 1927. Driving arrangements.-In means for damping torsional vibration in shafts, an auxiliary flywheel x, or a heavy member to which rotation is to be imparted, such as the rotor of an electric generator, is connected to the shaft a by interconnected reciprocating pumps c, or by gearwheel, vane, &c. pumps, spring-loaded exhaust and inlet valves h, g so checking the flow of water, oil, glycerine, &c., between the pumps that the flywheel or member rotates solidly with the shaft except at the critical speeds, when the oscillation is sufficiently violent to open the valves and permit relative motion between the shaft and flywheel, the resistance to such motion damping the oscillation. When slip occurs between the shaft and flywheel, the inertia of the shaft and its appurtenances, and thus the critical speed, changes, so further reducing the oscillation. The cylinders are interconnected by channels i. In a modification, the valves may be arranged in the pistons d, which are operated by a crank f on the shaft a, and the crank chamber is filled with liquid. The liquid in the channels i is maintained at approximately atmospheric pressure. An apparatus employing gear-wheel pumps is shown in Figs. 3 and 5. A wheel k secured to the shaft a gears with wheels l turning within the casing m and cover n, to which a flywheel may be secured. Exhaust and inlet ports o, p communicate respectively with annular chambers q, r, in the casing, which chambers are interconnected by cross chambers s provided with spring-loaded inlet and exhaust valves u, t, oppositely directed in alternate cross chambers. Each chamber s may have one valve only, the valves being alternately oppositely directed.
Patent GB-384624-A (GB)
Title: Electric flat-iron
IPC: D06F75/26
Filed: 1932-09-02
Abstract: 384,624. Automatic circuit-breakers for electric irons. CLERC, H. SCHNEIDER-, 19, Rue du Doubs, La Chaux de Fonds, Switzerland. Sept. 2, 1932, No. 24534. Convention date, Sept. 3, 1931. [Class 38 (v).] In a thermally-released circuit-breaker for an electric iron, an expanding rod 27 acts upon a lever 30 having an adjustable pivot 31 for regulating purposes, the lever 30 in turn acting upon another expanding rod 28 which acts on a lever 15, the end 14 of which is thereby withdrawn from a collar 13 on a spring-pressed plunger which then moves rapidly to break the circuit. The plunger has an insulating portion and a conducting portion, one or other of which engages two spring-pressed plunger contacts according to whether the switch is off or on. The pivot 31 is eccentrically mounted on a rod which is rotated by a regulating handle on top of the iron.