baber/WOPTO huggingface dataset:
Patent GB-673333-A (GB)
Title: Improvements in or relating to the method of producing hydrogen
IPC: C01B3/30
Filed: 1950-09-07
Abstract: <PICT:0673333/III/1> Hydrogen is produced by circulating a hydrocarbon in gaseous phase, e.g. methane, ethane, propane, butane, vaporized liquid hydrocarbons or gases from cracking liquid or solid hydrocarbon materials such as coal tar pitch, and steam in concurrent intimate contact through a reaction zone containing granular calcium oxide, maintaining the reaction zone at 1400-1750 DEG F. and above 2.7 atmospheres absolute, the amount of oxide being sufficient to absorb substantially all the carbon dioxide produced, the pressure exceeding that given by the empirical formula p=3.0+1.94x10-2 (t-1431)+3.41x10-4(t-1431)2 where t is the temperature, and recovering the gaseous product. In a cyclic process using three reactors, steam from 42 and methane from 44 in proportions 2:1 to 4:1 are mixed and fed by pipes 46, 54 downwardly through freshly regenerated preheating fixed bed of calcium oxide at 1750 DEG -1800 DEG F. on porous plate 38 in reactor 32, some reaction occurs and heat is liberated by the lime-carbon dioxide reaction which establishes a temperature gradient of at least 100 DEG F. downwardly in the bed.  The gases pass thence by pipes 64, 66 upwardly through fixed bed of lime on porous plate 40 in reactor 34, which has a temperature gradient of at least 100 DEG F. already established by the use of reactor 34 as preheater in the preceeding cycle, and hydrogen is withdrawn through pipe 78, cyclone 84, and pipes 96, 102 and 98 through steam preheater 110 to produce.  There should be at least 250 parts of lime per 100 parts of carbon in the methane and it may include additional catalysts, e.g. copper or silica gel; nickel, cobalt, or iron on x-aluminia, fused magnesia, or silica gel; nickel or stainless steel chips, or the lime may be impregnated with aqueous nitrates.  The bed in reactor 30, which was used for hydrogen production in the preceding cycle is simultaneously being regenerated under fluidized conditions at atmospheric pressure and 1750 DEG -1800 DEG F. by burning producer gas entering at 150 with air entering at 162.  Waste flue gases are withdrawn through pipe 74, cyclone 80, and pipe 114 through a steam/methane feed preheater. The producer gas is obtained by passing coal from hopper 126 and steam from line 134 into reactors 138 while injecting air at 142; the producer gas is withdrawn through line 144 and cyclone 146 to line 150.  The pressure in reactors 32, 34, is controlled by valve 112 in line 98, and optimum conditions are 1500 DEG -1650 DEG F. at 20-50 atmospheres. The particle size of the lime in the beds should be say-20 to+200 mesh so that at a gas velocity of 0.01-0.1ft./sec., in reactor 34 the bed is unfluidized and at a gas velocity of 0.5-3.0 ft./sec in reactor 30 the bed is fluidized.  The temperature is maintained in reactor 34 by the lime-Co2 reaction but additional heat may be supplied if necessary, by external heating or by comubstion of carbonaceous material.  An apparatus using a single reactor is also described.
Patent GB-1473663-A (GB)
Title: Electric switches
IPC: H01H43/04
Filed: 1974-05-09
Abstract: 1473663 Mechanical switches AMF Inc 9 May 1974 [9 May 1973 27 June 1973] 22184/73 and 30474/73 Heading H1N A switch is closed and after a predetermined time, opens itself. A pull on cord 19 rotates arm 16A which engages with teeth 13A which rotates ratchet wheel 13 joined to cam block 12 to rotate block 12 so that plastics pawl 20 is moved out of a cam notch 12A on to a cam surface 12B to move slider 6 which closes contacts 4, 5 through projections 6A, 6B. The contacts 4, 5 close the circuit to a load and to an electric motor 7 which rotates through gearing 8A, 8 a plastics ratchet wheel 9 whose teeth 9B engage teeth 11A on ratchet wheel 11 on the underside of cam block 12 and further rotate block 12 until pawl 20 falls into the next notch 12A thereby allowing contacts 4, 5 to open under their own resilience breaking the circuit to the load and stopping motor 7.
Patent GB-759106-A (GB)
Title: Improvements in or relating to sealing structures for reciprocable members
IPC: F16J15/00
Filed: 1954-07-29
Abstract: 759,106. Piston packing. BENDIX AVIATION CORPORATION. July 29, 1954 [Aug. 31, 1953], No. 22208/54. Class 122(1) [Also in Group XXIX] In a hydraulic accumulator for free pistor 11 separating the compressed air chamber 12 from the oil chamber 13 is sealed by two resilient packing rings. such as rubber O-rings 26, 27 housed in the end grooves 24. 25 of three circumferential grooves in the piston and the central groove 28, which becomes filled with oil during operation, is vented to the air chamber 12 through a passage 29 extending from the land 21 between the grooves 24 and 28 to the air side face 11a of the piston.
Patent GB-448014-A (GB)
Title: Treating sewage
IPC: C02F1/52
Filed: 1935-08-06
Abstract: Sewage or industrial waste liquor is aerated in the presence of returned sludge and a soluble compound of a trivalent metal, the suspended matter being thus coagulated for separation by settling or filtration.  Ferrous sulphate, ferric sulphate and aluminium sulphate are suitable metallic compounds, and more than one of these may be added either separately or as a single solution.  The returned sludge is preferably added to the sewage at the beginning of the aerating operation.  The metallic compound may be added towards the end of the aeration period which may last from half-an-hour to an hour.  An amount of air of from ,01 to ,1 of a cubic foot per gallon of sewage may be used.  Lime or other alkali may be added to adjust the pH value before settlement.  Treatment as above may constitute the first stage of the process described in Specification 410,607.  The sewage may flow continuously through aerating and settling tanks, and sludge from the settling tank may be passed on to a thickener.  The sludge for return to the aerating tank may be pumped from the settling tank or the thickener or partly from both.  The subsequent treatment of the surplus sludge and the apparatus used may be as described in Specification 425,858.
Patent GB-460908-A (GB)
Title: Method and machine for the production of adhesive paper strips provided with carrying loops
IPC: B31D1/06
Filed: 1935-08-06
Abstract: 460,908. Affixing adhesive strips. METO GES. Aug. 6, 1935, No. 22239. Convention date, Aug. 4, 1934. [Class 73] [Also in Group XVII] Lengths of adhesive paper strip 1, Fig. 1, provided at intervals with handle loops 7 formed by projecting portions of a band 3 of bast &c. attached to the adhesive surface of the strip, the strip and band being punched through at points 8 to facilitate separation into short lengths to serve as sealing and carrying means for packages, are produced by the machine shown in Fig. 2. The paper strip 1 is drawn intermittently between rollers 36 over a table plate 9 by the action of a roller clamp 531 co-operating with a slide 53 and operated by levers 49 ... 52 from a slide 48 actuated by a cam 47 on the driving shaft 13. Disposed above the plate 9 and reciprocable vertically by guides 11 operated by eccentrics 14 on the shaft is a tool support 10 ; during the feed of the paper strip this is maintained in the raised position. The bast band 3 is fed between rollers 41, which can be driven from the shaft, and passes over a guide 42 at the end of a counterweighted lever 43 and down through a slot 60 in the support to meet the paper strip. The feed of the band is also intermittent, the movement of the rollers 41 being under the control of a brake band which is in operation so long as there is no pull on the band 3, and the lever 43 is therefore maintained in the raised position. Adhesive is applied to the central part of the strip by a pivotally mounted brush 37 controlled by an arm 39<1> adapted to be raised by a guide 40 on the support, the action being that adhesive is not applied to the parts between the slots 5. The support 10 carries cutter dies 15, 16, which come into operation on the downward movement to form the apertures 5 and the connecting slot 6, and a die 34 which punches the openings 8. The portions of the band to form the handle loops 7 are forced to the underside of the strip through the openings 5, 6 by a thrust fork 21, 22, normally held raised by a spring-controlled lever 24 but depressed and brought into operation when a nose 30 at the remote end of this lever becomes engaged by a catch 31 on a spindle 32, on the downward movement of the support, the pull on the band causing an excess portion to be fed to provide the loop. The portions of the band between the loops are forced into contact with the adhesive on the strip by presser-pieces 18, 19, and the formed loops are flattened by a plate 35 resiliently attached to the end of the support.
Patent GB-1044260-A (GB)
Title: Automatic vending machine
IPC: G07F11/00
Filed: 1964-05-29
Abstract: 1,044,260. Vending machines. HAYDAY Inc. May 29, 1964 [June 20, 1963 (2)], No. 22264/64. Headings G5R and G4V. A coin freed record making machine comprises a movable press platen 120, a second press platen 113, a source of blank record material 140, a group of record forming stampers, means for placing a selected stamper and a blank between the platens, means for operating the press, and means for removing the impressed record. In the embodiment of Fig. 4, the stampers are stored on frames 133, and the platen 120 is movable by a telescopic hydraulic ram 119 energized by pump 117 and electric motor 118. On correct prepayment and operation of a stamper selection switch, the frame 133 carrying the chosen stamper is swung to position 136, and the ram 119 extended up through the frame, so that the stamper rests on the platen. A transfer arm 138 has fingers 139, which pick up the top blank from the pile 140, and deposit it on the platen. The ram 119 is then fully extended, to impress one side of the blank. Arm 138 then removes the record and drops it on to a delivery shoot 142. A further prepayment and selection mechanism enables any stamper to be played as a record. For this purpose, platen 120 is constructed as a turntable co-operating with pickup arm 126. The playing head 149 is shown in Fig. 6, and has two legs 147, 148 which run in the constant depth grooves 145, 146 of the stamper, while a needle 127, connected to a piezo-electrio or variable reluctance transducer, has a grooved end running on the variable height track 144. A further track 143 forms the groove on the pressed record. Alternatively, the variation in height of track 144 may be sensed by a light emitter and receiver mounted on the head, Fig. 7 (not shown). The record blanks may be vinyl plastic or sintered plastic discs, or plastic pellets. The stampers may be of hard plastic or steel. In the latter case, the stampers may be attached to the platens by electromagnetic devices. In another embodiment (Figs. 1-3, not shown), the stampers are in two stacks, one face upwards and the other face downwards, and a selected upwardly facing stamper, a blank, and a selected downwardly facing stamper, are assembled on the movable platen by transfer arms, the record being completed in one press. The platens may be heated. The transfer arms have suction pick-up nozzles or electromagnets. A separate coin-freed record-playing machine is incorporated in the same casing, the coinfreed mechanism (not described) being such that if two record sides have just been played, and those two sides are selected for a record to be made, the price of playing the records is credited against the price of making the record.
Patent GB-861851-A (GB)
Title: Laminates
IPC: B32B27/00
Filed: 1957-07-15
Abstract: 861,851. Paper &c. laminates. PAPETERIES DE LA ROBERTSAU. July 15, 1957 [July 23, 1956], No. 22338/57. Classes 96 and 140. A laminated article comprising a base, an ornamental sheet and a protective overlay, all impregnated with and bonded together by a thermosettable synthetic resin and hotpressed, has its overlay substantially transparent and made of creped paper or cellulose wool. The ornamental sheet may also be creped, may be of paper, or textile fabric, and may be white or coloured or may bear printed patterns. In the example, a hard panel based on wood fibres or a plurality of sheets of kraft paper impregnated with a phenol-formaldehyde resin is covered on both sides by sheets of paper impregnated with melamine- or ureaformaldehyde resin, and then on one side an ornamental paper sheet impregnated with one of the same two resins and a sheet of creped paper treated with melamine-formaldehyde resin in the course of its manufacture; these are then laminated by heat and pressure. The overlay sheet may be produced by treating a bleached cellulose pulp, mixed with substances capable of reacting to form a thermosettable synthetic resin, in a pulp mill and thereafter passing the pulp through a machine of known type for manufacturing cellulose wool or creped paper.
Patent GB-224212-A (GB)
Abstract: 224,212. Grimme, Natalis, & Co., Akt.- Ges., (Assignees of Hoffmeister, H.). Nov. 3, 1923, [Convention date]. Levers, locking.-In a crank-handle locking- device for a calculating-machine of the pin-wheel and cam-disc type, the handle a recessed at both ends and housing the spring-controlled pin c which co-operates with the usual locking-notch in the end face d of the machine frame, is of such length that, even when the pin is retracted to the right, as seen in the Figure, to unlock the handle the pin does not project beyond the recess e at the outer end of the handle.
Patent GB-500882-A (GB)
Title: Improvements in or relating to water tube steam boilers in which the combustion chamber is surrounded with water tubes
IPC: F22B37/10
Filed: 1937-08-16
Abstract: 500,882. Forced-flow steam boilers. SULZER FRERES SOC. ANON. Aug. 16, 1937, No. 22441. Convention date, Sept. 5, 1936. [Class 123 (ii)] In water-tube steam boilers with a combustion chamber 1 surrounded by water-tubes the bends 5 in the tubes 3 of a bank screening the chamber walls 4 from direct heat radiation are themselves screened by a number of straight sections 6 of tube extending transversely with respect to the tubes of the bank. The tubes may form part of the same tube system as tubes 3, liquid being supplied to one end and superheated steam being withdrawn from the other. The system ma.y comprise a series of groups of tubes in parallel with the groups at the end preferably having more tubes than those at the beginning or the tubes may be individually arranged in parallel and connected at their ends to headers.
Patent GB-1476475-A (GB)
Title: Thermoelectric assembly
IPC: H01L35/08
Filed: 1974-05-21
Abstract: 1476475 Ice making S T ELFVING 21 May 1974 [14 June 1973] 22582/74 Heading F4H [Also in Division H1] A thermoelectric assembly, see Division H1, is used in a heat pump assembly for ice freezing. The cold side junction bridges 56, 57, 58 extend down between extended frames 53 and are submerged in water to be frozen in ice tray 59. The ice, once formed, can be released from the panel by reversing the current flow through the thermoelectric assembly so that the cold bridges are heated instead of cooled, the ice tray 59 being hinged at 61 so that it can be swung away from the panel to release the ice. It may be sensed when the ice has thawed at the junction bridges and the ice tray automatically swung away, and after ice release the tray, again automatically, is swung back into position, filled with water and the current reversed for freezing. The freezing period may be controlled by a time switch.
Patent GB-876809-A (GB)
Title: Improvements in safety devices for heat exchangers
IPC: F22B37/47
Filed: 1960-06-28
Abstract: 876,809. Regulating liquid levels. GOTAVERKEN A. B. June 28, 1960 [July 24, 1959], No. 22648/60. Class 123(1) A low level safety device, e.g. for an automatically controlled boiler, comprises a chamber 6, the upper side of which, level with the lowest permissible water level in the boiler, is fitted with fusible plugs 13 accommodated within exchangeable sleeves 12 and communicates, through a pipe 7 and a connection 3, with the steam space of the boiler a cooling coil 5 being located between a boiler connection 4 below the lowest permissible water level and the lower side of the chamber 6. Shut-off valves 8, 9, linked at 10 and operable by a handle 11, are arranged respectively in the cooler 5 and the steam pipe 7. In normal operation the chamber 6 is completely filled with pre-cooled water, the conduit 7 being mainly filled with steam. If the water in the boiler falls below the lowest permissible level steam from the pipe 7 enters the chamber 6 to melt the plugs 13 and pass through a conduit 14 to a whistle 15, and rods 17, under the action of weights 16, fall to open the contacts 18 of an electric motor 20 controlling the operation of the boiler. New fuse plugs 13 can be fitted by switching off the valves 8, 9. In a modification the plugs 13 are omitted, a fusible plug located in a pipe passing through the chamber, being connected in the circuit of an alarm bell. The connections 3, 4 may be made in the branches leading to a level gauge.
Patent GB-691659-A (GB)
Title: Improvements in or relating to wire-shaped objects comprising a core and a sheath with magnetic powder in between
IPC: G11B5/64
Filed: 1951-09-28
Abstract: 691,659. Magnetic dust structures. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 28, 1951 [Oct. 3, 1950], No. 22670/51. Class 38 (ii). A magnetic recording wire comprises a core 1 and sheath 2 of aluminium or similar material with an intervening space filled with a permanently magnetizable, ferromagnetic powder 3, e.g. iron powder. The wire may be drawn down to an outer diameter of 0.1 mm. Copper, nickel or molybdemun may replace the aluminium provided that any heat treatment is at sufficiently low temperature to avoid sintering the magnetic powder. The latter may have a particle size less than 2 Á, e.g. 0.03 to 0.05 Á, and a coercive force greater than 300 Oersted, e.g. 1100 Oersted. Iron alloy, nickel alloy, nickel and cobalt powders are mentioned.
Patent GB-952550-A (GB)
Title: Toy sound reproducing device
IPC: A63H3/33
Filed: 1962-06-13
Abstract: 952,550. Dolls. PRODUCT DESIGN & DEVELOPMENT CORPORATION. June 13, 1962 [March 19, 1962], No. 22684/62. Heading A6S. [Also in Division G5] A doll 17, containing a gramo-  phone 12, see Division G5, corresponding to two distinct behaviour patterns, has the record playing means forward-spaced from the first sound pattern to the second when manually-operated means are actuated. The gramophone is electrically driven, and the doll has a trap-door 102 to change the battery and a grille 16 to provide sound egress. A bottle 76, with a stiffener 80 inside the nipple and a grille 79 to permit egress of liquid when applied to the doll's mouth 72, actuates a flexible rod 86 to push the forward space lever 88 on the gramophone to change over from e.g. crying sounds to gurgling sounds, a side tube 75 passing the liquid to nappy-wetting means of known type (not detailed). In a further embodiment, not described in detail, crying/laughing regimes are related to an actuator on the doll which may be " tickled."
Patent GB-1457221-A (GB)
Title: Process for the production of cross-linked plastics
IPC: C08G18/68
Filed: 1975-05-23
Abstract: 1457221 Cross-linked plastics BAYER AG 23 May 1975 [5 June 1974] 22703/75 Headings C3P and C3R Cross-linked plastics are made by a process comprising reacting polyisocyanate(s) (I) with (a) olefinically unsaturated polyhydroxy polyester(s) (E) with OH-number 200-1000 and MW 200-800, and containing 0À1-0À5 g. equivalent C=C bonds per 100 g., optionally mixed with saturated polyhydroxy compound(s) and (b) olefinically unsaturated monomer(s) of b.p. 40-250 C. containing #1 NCO-reactive group, the reaction mixture containing 0À3-5 C=C bonds in component (a) per C=C bond in (b), and 0À3-5 NCO groups per OH group. Also present, by wt. based on (I) + (a) + (b), may be 0À001-10% catalyst, additive, or auxiliary substance, and #400% filler. (b) may be styrene. Organic peroxides may be added. The mixture may be foamed. Use.-Heat and electrical insulators, foundry-sand binders, or rock consolidation.
Patent GB-627985-A (GB)
Title: Improvements relating to the detection of modulated carrier waves
IPC: H03G11/02
Filed: 1946-07-31
Abstract: 627,985. Phase difference measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 31, 1946, No. 22752. Convention date, July 31, 1945. [Class 37] [Also in Group XL (c)] A detector circuit for phase or frequency modulated waves which can also be used as a homodyne detector for amplitude modulation comprises three valves T1, T2, T3 (Fig. 1), coupled by a common cathode resistance 5. The input valves T1, T2 are biassed to limit negative-going excursions of grid potential, and the output valve T3 those of opposite sign. For the homodyne detection of amplitudemodulated waves the signal is applied to the valve T1 with sufficiently restricted amplitude for the amplification to be linear. Unmodulated oscillations having the same frequency and phase as the signal carrier are applied to the valve T2, with saturating amplitude, and are clipped to a square wave by the valves T2, T3. During positive-going periods of this wave the valve T3 is cut off and accordingly cannot pass the corresponding portions of the modulated signal (Figs. 2, 3, not shown). The signal is thus rectified and modulation-frequency components may be obtained by means of an integrating circuit 20 in the output of the valve T3. To detect phase-modulation the phase relationship of the " gating " oscillations applied to the valve T2 is made 90 degrees relative to zero modulation of the signal. During each halfwave period in which the valve T3 is conductive a portion of the phase-modulated wave is passed having a mean amplitude proportional to the instantaneous phase deviation (Fig. 6, not shown), producing an output amplitude variation in correspondence with the modulation. In another mode of operation which is insensitive to any amplitude modulation, phase or frequency-modulated signals are applied to both valves T1, T2 from a phase discriminator. The discriminator (Fig. 8, not shown) may comprise a pair of coupled tuned circuits with the valves connected respectively to the primary and secondary. Both inputs are made sufficient to saturate the valves, producing an output at the valve T3 which comprises a square wave modulated in width (Fig. 7, not shown) from which the modulating frequencies are obtained by means of the integrating circuit 20. The width-modulated wave may alternatively be rectified by means of a cathode-follower type detector (Fig. 5, not shown). The valves T1, T2, T3 may comprise either diodes or triodes in various combinations, separate biassing means being used (Figs. 2, 9, 10, 11, not shown). U.S.A. Specifications 2,263,615 and 2,276,565 are referred to.
Patent GB-611912-A (GB)
Title: Electron discharge device
IPC: H01J19/80
Filed: 1945-09-04
Abstract: 611,912. High-frequency discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 4, 1945, No. 22802. Convention date, Dec. 14, 1943. [Class 39 (i)] An ultra-high-frequency discharge device comprising an indirectly heated cathode 11, a grid 12, accelerators 13, 14 and collector 15, the latter having cooling fins 16, and a secondary emission suppressor 17 is characterised by the fact that the cathode and grid leads cross each other and are sealed through the envelope in the order grid leads 22, cathode lead 19, leads to the other electrodes. The cathode is surrounded by and supported in a focusing collar 18 and has heater leads 20. The input circuit comprises a coaxial line resonator formed by tubular members 25, 26 capacitatively coupled to the grid leads through collar 22<1> and connected to the cathode lead 19 by spring fingers 30. An output resonator 32 is disposed between accelerators 13, 14 and capacitatively coupled to the first resonator through mica rings 35. Input and output loops 31, 36 are provided. The press supporting the collector is protected by overlapping shields 37.