baber/WOPTO huggingface dataset:
Patent GB-257304-A (GB)
Title: Improvements in or relating to the production from liquids of vapour suitable for use in internal combustion engines and for other purposes
IPC: F02M31/18
Filed: 1925-03-30
Abstract: 257,304. Caldwell, W. H. March 30, 1925. Vaporizing-apparatus. - In apparatus for the production of vapour from a liquid the liquid fuel is pumped from a tank 4 by way of pipes 2, 2<a> to a heater 1 consisting of concentricallyarranged dome-shaped plates, and heated by exhaust gases, by flame, by an electric heater, or, if insulated, by the passage of an electric current through its wall. Pressure in the pipe 2 is controlled by an adjustable relief valve 5, and a branch pipe 2<b> connects with a cylinder 15, the piston 14 of which acts on the adjustable levers 11, 13 and therethrough on the stem 12 of the valve 10. The levers 11, 13 are so adjusted that the valve 10 is kept closed under the liquid pressure in the heater 1, but opens to permit the passage of vapour into the chamber 9. Back pressure from the heater is prevented by forming the pipe 2a as a long helix. From the chamber 9 the vapour may pass by way of the pipe 24. Excess vapour escapes by a valve 17 the stem 18 of which is controlled by adjustable levers 19, 20 and a piston 21, working in a cylinder 22 which is connected to the liquid-supply pipe 2 by a pipe 23, Pipes 16, 26 convey the excess vapour from the valve 17 and the liquid overflow at the valve 5 back to the tank 4. Alternatively, the closing pressure on the vapour outlet valve may be produced by the aid of a suitable weight or spring. According to the Provisional Specifications, the heater 1 is in the form of a helix, and its hot end may be extended to allow the use of a flexible diaphragm to transmit the valvecontrolling pressure. The first Provisional Specification refers to Specification 16995/15, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for].
Patent GB-946724-A (GB)
Title: Production of pure maleic anhydride
Inventor: FRIEDRICHSEN WILHELM
Filed: 1962-03-06
Abstract: Maleic anhydride, 99.7 to 99.8% pure and free from fumaric acid, is produced by introducing maleic acid, or an aqueous solution or suspension containing at least 50% by weight thereof, into maleic anhydride boiling at atmospheric or reduced pressure thereby vaporizing maleic <PICT:0946724/C2/1> anhydride and water; cooling the vapours by 3 to 30 DEG C., preferably 5 to 20 DEG C., but not below 100 DEG C., in a first condensation zone; removing the condensed maleic anhydride; cooling the remaining vapours to 30 DEG to 80 DEG C. below that of the first condensation zone, but not below the dew point of water vapour at the prevailing pressure and not below 53 DEG C.; returning the condensate to the vaporizing mixture and condensing the water vapour leaving the second condensation zone. In a specific embodiment maleic acid, or an aqueous solution or suspension thereof, is passed from vessel 1 into vaporizer 2 which contains boiling maleic anhydride at 110 DEG  to 200 DEG C. and 50 to 760 mm.Hg., being preferably 115 DEG  to 140 DEG C. at 90 to 150 mm. Hg. It is convenient to maintain an amount of anhydride, advantageously 70 to 95% by weight of the contents of the vessel, in 2 such that the mixture remains homogeneously liquid and to introduce the maleic acid into 2.3 to 17 times its own weight of anhydride. The vapours are passed through column 3, maintained at the same temperature as 2, into the first condensation zone 4, where they are cooled by 3 to 30 DEG C. to condense part of the anhydride (approx. 15 to 35%) contained therein, which is collected in pure form in vessel 5. The remaining vapours are cooled in the second condensation zone (6) to such a temperature that the bulk of anyhdride is separated in lquid form but the water vapour remains substantially uncondensed. The condensate from 6 is passed via pipe 7 and column 3 to the vaporizing mixture in 2 and the residual vapours are condensed in column 8, collected in vessel 9 and may be used for washing maleic anhydride gases from the combustion products of benzene.  The ratio between maleic anhydride condensed in the first zone to that in the second, controlled by the temperature of the two zones, is 1:6 to 1:1. Examples are given.
Patent GB-159423-A (GB)
Title: Improvements in milk-churn and the like trollies or carriers
IPC: B62B1/02
Filed: 1920-03-23
Abstract: 159,423. Francis, H. E. March 23, 1920. Hand-trucks.-A trolly for transporting milkchurns &c. comprises shafts c supported on the axle d by laminated springs e and connected by a cross-bar f. One shaft c is pivotally mounted on the cross-bar f by means of a bolt k passing through the shaft and a bridge-piece i. The springs e pivot on the axle about a bolt n. In use, hooks h engage the handles of the milk churns, the pivoted shaft c being swivelled to accommodate various sizes of churns.
Patent GB-195630-A (GB)
Title: A method or process of and means for removing the flickering or dancing during the projection or reproduction of kinematographic pictures or scenes in natural colours
IPC: G03B33/00
Filed: 1923-03-26
Abstract: 195,630. Chromo Film Ges. March 28, 1922, [Convention date]. Colour kinematography; three-colour and like systems.-To reduce flickering in threecolour projection, the rate at which the successive colour changes follow each other on the screen is increased, without increasing the speed of the film, by enlarging the gate A, B so that it accommodates two successive colour records R, G on the film and arranging a system of reflectors P1, P2, P3 in front of the gate to project the beams from the two records into superposition on the screen. The light passes through a rotary shutter K having two concentric series of coloured apertures, Fig. 3, one series being appropriate to each of the projection beams, and the apertures being so arranged that the images of the two records which are in the gate at the same time, follow each other in rapid succession on the screen. The film is moved at each shift through the height of a single picture, so that each colour record is projected twice. The reflectors may be arranged, as shown in Fig. 1, or that the two beams pass through a single lens L, or they may be arranged to separate the beams which are then passed through separate lenses. The Specification, as open to inspection under Sect. 91 (3) (a) also describes a modified arrangement in which the negatives are taken through a shutter of the form shown in Fig. 4 (Cancelled) having three apertures, in each of which two of the primary colours are arranged in juxtaposition, each area on the film being exposed through one of the composite apertures. The colour areas on the shutter are provided with adjustable covers a so that they may be adjusted in accordance with the colour-sensitiveness of the film. The positives are projected through a similar shutter, the gate being of the ordinarv size, and a single-picture film-shift being employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-1371701-A (GB)
Title: D, 1-alpha-tocopherol
IPC: C07D311/72
Filed: 1972-02-24
Abstract: 1371701 Tocopherol DIAMOND SHAMROCK CORP 24 Feb 1972 [25 Feb 1971] 8644/72 Heading C2V  A process for the manufacture of d, 1-α- tocopherol comprises condensing trimethylhydroquinone with a phytol in an inert solvent with a combined acid condensing agent comprising a Lewis acid and a strong acid. In examples trimethylhydroquinone is condensed with isophytol, the condensing agents being zinc chloride with sodium bisulphate, with sulphuric acid, with para-toluene sulphonic acid and with hydrochloric acid; acetic anhydride is added to form d, 1-α-tocopherol acetate. Other Lewis acids, strong acids and phytol compounds are mentioned.
Patent GB-198651-A (GB)
Title: Method of and apparatus for utilising steam, especially exhaust steam for preheatingwater
IPC: F22D1/28
Filed: 1923-03-27
Abstract: 198,651. Reik, H. June 2, 1922, [Convention date]. Feed-water, supplying and controlling.-Feed water is passed into a condenser for exhaust or waste steam, and from thence to a pump 2 together with part of the uncondensed exhaust steam, the mixture being subjected to compression in the pump with consequent condensation of the steam and preheating of the water. In the arrangement shown, for pre-heating the feed water of a locomotive boiler, a cold water pump 1 sucks water from the tender through a pipe 6 and delivers it through the perforated pipe to a jet condenser 8, having a waste steam inlet 9. A hot water pump 2, connected to the pump 1 and having an air inlet 21 which is normally open, sucks water and steam from the condenser and delivers to the boiler through the pipe 20. The pump 2 is of greater capacity than the pump 1 and they are driven from the connecting rod of the engine. The amount of cold water fed to the condenser is controlled by a valve 23 fitted to a bye-pass connection 24 to the tender, the valve being actuated by a rod 25 connected to the locomotive control gear, as described in Specification 189,093. The temperature to which the water is pre-heated in the pump varies inversely with the amount fed to the condenser. Heat interchanging bodies 30, such as " Raschig rings," may be introduced into the condenser through a door 28.
Patent GB-722344-A (GB)
Title: Improvements in or relating to the generation of mechanical energy by the combustionof solid fuels
IPC: F23G5/00
Filed: 1952-04-04
Abstract: 722,344. Gas-turbine plant. GLINKA, C. April 4, 1952 [April 7, 1961], No. 8731/52. Class 110 (3). [Also in Groups XII and XIII] A gas-turbine plant using solid fuel comprises a combustion chamber in which the fuel is burnt and a treatment chamber containing a mixture of water and solid fuel having so high a water content that the mixture is in a liquid condition through which the gases from the combustion chamber pass to the turbine and in which the combustion gases are brought into close contact with the mixture of water and fuel or water extracted from the mixture so that the dust carried by the gases is deposited and the gases cooled by evaporation of a portion of the water. In the arrangement shown, the waste water from a coal washing plant is passed into a tank 1 from which it is conveyed by a pump 2 to a tank 3 where it is preheated by the turbine exhaust 'gases passing through a coil 26. The preheated mixture then passes into a treatment chamber 5 containing a rotating shaft 32. Filtering rings 34 attached to the shaft 32 are used to transfer heat from the combustion gases entering the chamber 5 through the pipe 16 to the fuel-water mixture and to remove the dust from the combustion gases which adheres to the moist rings. The mixture is forced towards the discharge of the chamber 5 by vanes 36 attached to the shaft 32, and is forced through the sieve 7 by paddles 38. The moist gases leaving the chamber 5 pass through a heat exchanger 19 where the compressed air from the compressor 27 is heated to the turbine 22. A portion of the preheated compressed air passes through openings 37 into the drier 6 where the remaining moisture in the fuel is evaporated. The fuel is pulverized in a chamber 9 by a beater 8 and then blown into the cyclone combustion chamber 12. The slag is drawn off at 14. In a modification for burning fuels with colloidally inherent moisture, the treatment chamber is divided into two parts. In the first part through which the combustion gases pass a part of the moisture is removed, the mixture then passes to the second part where a part of the remaining moisture is removed. The last part of the water is removed in a press. The water from this press is used to clean and cool the combustion gases entering the first part of the treatment chamber in a stationary filter. In this arrangement the gases leaving the treatment chamber are used to reheat the turbine exhaust gases in a heat exchanger before being used in the turbine. The reheated gases are used in a second turbine, the exhaust of which is used to preheat the combustion air. The fuel may be peat, lignite or waste sulphate lye from a cellulose manufacturing plant.
Patent GB-571820-A (GB)
Title: Improvements in or relating to couplings, draw-bars and the like for tractors or other vehicles
IPC: B60D1/02
Filed: 1943-06-03
Abstract: 571,820. Vehicle couplings. COLLING- HAM, J., and KEEP, G. E. June 3, 1943, No. 8955. [Class 103 (v)] Coupling means between a tractor and trailer comprises a pair of links, one being a single link b and the other comprising two links d, the links being connected together by a single pivot e and each having at its other end a pair of holes to receive either one or two pins to connect the links to the tractor and trailer respectively so as to have either a rigid or pivotal connection as required at either end. Connection by a pin c to a plate a as described in Specification 571,818 is shown in the Figure; the invention may also be used with the coupling means described in Specification 571,819.
Patent GB-642801-A (GB)
Title: Improvements in and relating to a device for centering the spindle of a boring or drilling machine
IPC: B23B49/04
Filed: 1948-03-30
Abstract: 642,801. Centring devices. SOC. GENEVOISE D' INSTRUMENTS DE PHYSIQUE. March 30, 1948, No. 8962. Convention date, April 10, 1947. [Class 83 (iii)] An attachment for centring the spindle 2 of a boring or drilling machine on the axis of a workpiece 28 comprises an arm 7 secured to the spindle, a dial-gauge 9 carried by a holder 10 slidably mounted on the arm, a toothed gear 5 loosely mounted on the spindle and having a handle 6 thereon, and a gear train Z1 to Z9 which is mounted on the arm and arranged so that when the gear 5 is held stationary by the handle 6, rotation of the spindle 2 is transmitted to the gauge 9 in such manner that the gauge remains oriented in the direction chosen by the operator and independent of the angular position of the spindle. The arm 7 is attached to a shaft 1 which is secured to the spindle 2 and has rails 11a, 11b along which the holder 10 is caused to move by a pinion 13 engaging a rack 14. The holder 10 is clamped in an adjusted position by a nut 15. The drive through the gear train, caused by holding the gear 5 as the arm 7 is rotating, is transmitted to the pinion Z9 on the gauge 9 by a shaft having a worm connection to the gears Z6, Z9. The worm connection to the latter gear is keyed to the shaft so as to be slidable thereon and allow adjustment of the holder 10 according to a scale on the arm 7. The gauge 9 is in a bearing 20 in the holder 10 and is supported by a spring 21. The end 22c of a bell-crank lever 22, pivotally mounted in the holder 10, bears on the outside diameter of the workpiece 28 and the other end 22a of the lever is urged by a spring 25 against the spring-plunger 24 of the gauge 9 so that a variation in the gauge reading indicates that the spindle 2 is not centred above the workpiece. To centre on a bore, the spring 25 is rendered inoperative by moving its retaining pin 26 according to gauge marks on the holder 10 and the arm 22c forced outwardly by the plunger 24.
Patent GB-732545-A (GB)
Title: Fuel control device utilizing engine speed governor
IPC: F02C9/16
Filed: 1952-04-08
Abstract: 732,545. Centrifugal governors; gas-turbine plant. BENDIX AVIATION CORPORATION. April 8, 1952 [April 18, 1951], No. 8979/52. Classes 57 and 110 (3). [Also in Group XXIX] The fuel supply to a gas turbine is metered by a valve 46 actuated by a centrifugal governor weight 78 loaded by a spring 51 adjustable by a lever 56 to set the governor to control at various speeds. A second centrifugal weight 82, loaded by an adjustable spring 83, has a cam surface that obstructs the movement of a projection 81, on the bell-crank 78<SP>1</SP> carrying the weight 78, during low speeds. When the lever 56 is moved from a low-speed setting to a high-speed setting, the movement of the metering valve 46 is first restricted until the weight 82 has moved the cam surface from the path of the projection 81. The supply of fuel to the metering valve 46 is obtained through pipe 15 having a by-pass valve 16, loaded by a spring 24, and also a regulating valve 27. The opening of the regulating valve 27 is controlled by a diaphragm loaded on one side by the full pressure in the chamber 26 and on the other side by the pressure in chamber 85 which is obtained by passing fuel from chamber 26 through passage 32 to a controlled throttle valve 86, adjusted by a temperature responsive device 93, and. then to chamber 85 and through passage 95 to a controlled throttle valve 97 adjusted by a pressure, responsive device 101. The load exerted by the diaphragm is balanced by a, centrifugal force developed by a weight 40, rotated from the turbine, and transmitted through the lever 35. The temperature and pressure responsive devices 93, 101 may respond to changes in the compressor air inlet temperature or pressure or related temperatures and pressures such as those in a stage in the compressor. Specifications 634,095 and 655,311 are referred to.
Patent GB-924027-A (GB)
Title: Improvements in rolling mills
IPC: B21B31/32
Filed: 1961-03-13
Abstract: 924,027. Rolling. MOELLER & NEUMANN G.m.b.H. March 13, 1961 [March 14, 1960], No. 9037/61. Class 83 (4). In an hydraulic screw-down device for the rolls of a rolling mill the roll pressure on at least one chock 3, Fig. 1, is transmitted to a frame 1 by a thrust member 5 and an expandable sleeve 6, the sleeve being pretensioned by fluid in a chamber 10 so that subsequent controlled or arbitrary changes in fluid pressure cause small changes in the length of the sleeve 6 which are transmitted to the material being rolled. A mechanical screw-down 4 is used for coarse adjustment. In a second embodiment a mechanical screw-down, acting through a worm 17, a wheel 16, a splined outer sleeve 14, and a screw thread 18, is combined with an hydraulic system having a fluid chamber 10, thrust member 12 and tensioned sleeve 13. A safety cap 21 fractures at 22 at a predetermined pressure, and a pressure chamber 23 is hydraulically pressurized to clamp the screw thread 18. For cold-rolling or while rolling is in progress, when more power is required for screwing down, this chamber is arranged so that the pressure relieves the force acting on the screw thread 18. Specification 895,929 is referred to.
Patent GB-526687-A (GB)
Title: Improvements relating to spark ignition coils for internal combustion engines
IPC: H01F38/12
Filed: 1939-03-22
Abstract: 526,687. Spark ignition coils. LUCAS, Ltd., J., WATSON, E. A., and ALLEN, A. MASSEY-. March 22, 1939, No. 9042. [Class 38 (ii)] In an ignition coil of the type adapted to be mounted on a sparking plug f, successive layers of the secondary winding b are insulated by layers of paper, silk &c. which overhang to form respectively internally and externally coned extensions i, j at opposite ends of the winding. The extension i is supported by a coned part q formed on a core c of ceramic or other insulating material. The extension j fits within an insulating cup r which carries a socket s effecting connection between the sparking plug terminal t and screw u to which the unearthed end of the secondary is connected. The unearthed end of the primary a is connected through a lead n to a terminal o.
Patent GB-590096-A (GB)
Title: Improvements relating to breathing apparatus
IPC: A62B9/02
Filed: 1945-04-11
Abstract: 590,096. Respiratory appliances. SIEBE, GORMAN, & CO., Ltd., DAVIS, Sir R. H., and DAVIS, R. W. G. April 11, 1945, No. 9043. [Class 81 (ii)] In breathing apparatus of the type comprising a face mask or helmet which is supplied in accordance with the requirements of the wearer with respirable gas, e.g., air or oxygen, by way of a lung-operated gas admission valve, the valve is integrally incorporated with the face mask or helmet or detachably mounted thereon, and is operated by a flexible diaphragm which is subject to the fluctuating pressure in the mask as the wearer breathes. As shown, a drum 5 jointed to the front of a mask 1 and formed with a perforated diaphragm 6, has mounted thereon a valve body portion 9, secured by means of lock nut 10. Gas passages 13 extend through the valve body and are normally closed by a spring-urged valve 14. The spring pressure is adjusted by means of nuts 17, 19 threaded on the valve stem. The valve is opened by the movement of a lever 21 pivoted at 22 and connected at its other end to a circular plate 26, which bears against a diaphragm 25 of rubber, rubberized silk &c. which moves laterally during inhalation and exhalation. A guard member 28 telescopes over drum 5 and is held in place by a stud and nut 30, 31. Rubber tubing 20 having an internal diameter of about “-inch leads to the low pressure side of a pressure reducing valve connected to a cylinder of compressed air and adapted to maintain a pressure of 10 to 15 lbs. per square inch on the low pressure side. A non-return exhalation valve is fitted to the mask immediately above the drum 5. A flap valve may replace the disc type valve. The device is applicable to open or closed circuit apparatus.
Patent GB-163558-A (GB)
Title: Improvements in or relating to kettles, boilers, coppers and other vessels for heating liquids
IPC: A47J27/024
Filed: 1920-03-29
Abstract: 163,558. Parncutt, A. E. March 29, 1920. Heating-surfaces, increasing; foot-rings. - The bottom 1 of a kettle, boiler, copper, or other vessel for heating liquids is provided with a tubular coil 5 connected to the interior of the vessel by a number of tubes 4, 4a, 4b passing through holes in the bottom 1. The tops of some of the tubes are close to the bottom 1, while the rest of the tubes project upwards into the body of the vessel. The coil 5 is surrounded by a perforated extension 9 of the body of the vessel.
Patent GB-590115-A (GB)
Title: Improvements in and relating to domestic firegrates, stoves and ranges
IPC: F24B1/19
Filed: 1945-04-12
Abstract: 590,115. Domestic firegrates. FEDERATED FOUNDRIES, Ltd., CHAMBERLAIN, E. A. C., and BINNIE, R. T. April 12, 1945, No. 9156. [Class 126] An inset for a domestic firegrate comprises an upper portion a forming the front of the firebox below which is a retangular opening closed by a cover d hinged at e. A lug g may be provided for moving the cover which may hinge upwardly to lie against the rearwardly inclined upper portion a. The air to the grate is adjusted by the opening of the cover which is retained in position by two springs or spring-loaded arms e which make frictional contact with internal walls.