baber/WOPTO huggingface dataset:
Patent GB-1339782-A (GB)
Title: Television receivers
IPC: H04N5/63
Filed: 1971-04-19
Abstract: 1339782 Converting GENERAL CORP 19 April 1971 [12 Feb 1970] 21624/71 Heading H2F [Also in Division H3]  In a TV receiver, power supply to a group of circuits including the horizontal and vertical deflection circuit 20, 21 is obtained by rectification at 30 of the mains without a transformer; supply to the rest of the receiver being obtained by rectification of the secondary voltages of one or more double-wound transformers, one side of which is connected to chassis which may thus be earthed. A further double-wound transformer 19 is necessary for the coupling of synchronizing pulses between the two parts of the receiver. As shown, the EHT voltage for the cathode-ray tube 17 is obtained conventionally by rectifying the output of a high voltage secondary 28 of the flyback transformer. Supplies for the tuner, IF amplifier and detector 12, for the audio circuit 13, video amplifier 15 and synchronizing signal amplifier 18 are obtained by rectifying other tappings on the secondary winding of the line flyback transformer. In Fig. 3 (not shown) the supply for stages 12 ... 18 is obtained by rectifying the output of auxiliary secondary winding of the cathode-ray tube heater transformer 27. In Fig. 4 (not shown) a pair of synchronizing signal amplifiers, each feeding a separate synchronizing signal isolating transformer 19, are supplied from the synchronizing separating circuit.
Patent GB-713192-A (GB)
Title: Process for separating aluminium chloride from gases
Inventor: GROTHE HANS
IPC: C25C3/18
Filed: 1951-09-14
Abstract: Aluminium chloride-containing gases, such as are obtained by the chlorination of aluminium-bearing raw materials, are absorbed by an aluminium chloride-containing mixture of at least two chlorides of the metals sodium, potassium, lithium, calcium and magnesium, and the melt obtained is treated with one or more chlorides of alkali metals, alkaline earth metals and magnesium, or a mixture thereof with aluminium chloride, which cause at suitable temperature the formation of two phases of different aluminium chloride content, the richer phase being separated for use in aluminium electrolysis.  The phase poorer in aluminium chloride may be used for the initial absorption. The aluminium chloride-poor mixture from the electrolysis operation may be used in the step of separation into two layers.  Two examples are furnished, indicating mixtures of (i) aluminium, potassium and lithium chlorides, and (ii) aluminium, potassium and magnesium chlorides in varying amounts.
Patent GB-577044-A (GB)
Title: Improved apparatus for the heat treatment of camshafts and the like
IPC: C21D9/30
Filed: 1943-12-29
Abstract: 577,044. Heat-treating metals. FORD MOTOR CO., Ltd., and SWAN, J. Dec. 29, 1943, No. 21804. [Class 72] Relates to apparatus for the heat treatment of articles such as cam-shafts which require certain selected parts to be heated followed by a quenching in oil or other medium, a number of such articles being carried in succession to and past the heating means, and each article being continuously rotated about its own axis while being heated and while being quenched. The apparatus may comprise a quenching tank a, a frame or spider b rotatably carried therein and comprising a plurality of pairs of centres c, d, between each pair of which a cam-shaft or other workpiece e may be rotatably carried. A Geneva-wheel mechanism q causes intermittent rotation of the frame b so as to move the workpiece from the loading station to the heating station at which a flame torch f having spaced burners f<1> effects the selective heating of the work piece. The Geneva-wheel mechanism also effects the constant rotation of a spur wheel h which in turn rotates engaging pinions i by which the workpiece is rotated on its own axis while being heated. The next partial rotation of the frame b carries the heated workpiece into the quenching-medium and the newly loaded workpiece to the heating station, and so on. As each pinion i arrives at the loading station it is moved by a cam or other device out of engagement with the spur wheel so that there is no rotation of the workpiece being removed from or placed between the centres r, d. Instead of a flame torch, electrical heating means may be employed. For example, a number of split induction blocks may be provided, one for each cam or part to be hardened, the parts of the block being closed round the rotating workpiece for the heating operation and then separated to permit movement of the frame carrying the workpieces.
Patent GB-711119-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L5/32
Filed: 1952-09-01
Abstract: 711,119. Suction cleaners. HOOVER, Ltd. Sept. 1, 1952 [Sept. 1, 1951], No. 21901/52. Class 8 (1). Nozzle height adjustment to any one of a number of positions including the inoperative position in a handle propelled suction cleaner having a hinged converter port cover 35 is effected by a cam 40 and a follower pin 39 carried by a vertically movable wheel axle 30 and the cover 35 respectively or vice versa; the cam and its follower having a number of predetermined relative positions providing the inoperative nozzle position while the cover 35 is unlocked, and two or more operative positions whilst the cover is locked closed. The wheel axle 30 about which the cam 40 is journaled is cranked and is carried at the rear of the nozzle 11, which latter is urged upwardly by a torsion spring surrounding the axle 30, and the cam 40 has an open ended slot 41 providing seats 42, 43 for the pin 39 within the working range of the nozzle; the inoperative nozzle position being assumed on the pin 39 being allowed to slide free of the slot 41 and thereby unlocking the cover 35. A pointer 45 serves as a handle to adjust the setting of the cam 40 and in conjunction with scale markings on the cleaner casing enables the setting to be' observed. A stop 46 limits anticlockwise movement of the cam 40 and thus limits raising of the nozzle in its inoperative position.
Patent GB-1140076-A (GB)
Title: Improvements in and relating to glow discharge lamps
IPC: H01J61/64
Filed: 1966-05-17
Abstract: 1,140,076. Glow discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 17, 1966 [May 20, 1965], No.21911/66. Heading H1D. A cold cathode glow discharge lamp comprises an elongated glass envelope 1 (which may also be of curved tubular form and may be wholly or partially coated with a phosphor) and two electrodes 4, 5 (as shown, or alternatively rod-shaped) which extend towards each other one from each end of the envelope and which have surfaces parallel to the longitudinal centre line of the envelope upon which surfaces the discharge terminates in operation, wherein at each end of the lamp the envelope is sealed by metal members 2, and 3 (of ferrochromium for instance), the surfaces of which inside the envelope are planar and perpendicular to the said longitudinal centre line. The electrodes as in Fig. 1, may be of iron, with aluminium and nickel layers on the inner and outer surfaces respectively. Members 2 and 3 may be provided with tapered connecting pins or a curved strip with a supply wire clamped therein at the end remote from the member.
Patent GB-1438271-A (GB)
Title: Alarm and/or control apparatus
IPC: G01F23/24
Filed: 1972-05-10
Abstract: 1438271 Automatic control systems CENTRAL ELECTRICITY GENERATING BOARD R E MARTIN and E F HASLER 29 June 1973 [10 May 1972] 21929/72 Heading G3R [Also in Division F4]  Control (and/or alarm) means operative when a parameter goes beyond a predetermined limit comprises at least two sensors which must both respond to the parameter to produce a control signal; one sensor responding at a value when the parameter exceeds the limit the other sensor responding when the parameter is not beyond said value. Three sensors may be employed - two responding beyond a first value beyond the limit, the other beyond a second value not greater than the first value; any two sensors' response producing the control signal. The means is described in detail in relation to water level control in boilers and associated apparatus but is not restricted thereto: water or other fluids can be detected by thermal conductivity means; temperature by electrical, magnetic differential expansion, curie point, resistive, optical or hydraulic means; flow-rate by thermal dissipation, rotational methods or pressure differential means; pressure by electrical, hydraulic or mechanooptical sensors. Fig. 1 shows a boiler 1 connected to a test vessel 2 provided with sensors A-F arranged above and below a target water level. Five relay contacts are switched by each sensor (e.g. A1-A5) - the first to operate condition display lamps, the next two to give indication of an equipment fault, and the final three to control the boiler. The control contacts of the upper three sensors A, B, C are connected together in accordance with the invention as are the lower three sensors D, E, F to provide a low or high water level signal only when two out of the three sensors indicate the changed level - this signal is passed through the line 10 to circuit breaker 11 to shut down the boiler. For small fluctuations in boiler water level the sensors C, D can act on feed pump motor 6 either shutting off the power to the motor or running it at reduced power via resistor 7. A system of relays need not be used - logic circuitry (e.g. AND gates) can ensure the control signal is produced only when two sensors respond.
Patent GB-502084-A (GB)
Title: Improvements in and relating to motor vehicles
IPC: F16H61/02
Filed: 1937-08-09
Abstract: 502,084. Hydraulic transmission of power. STEYR-DAIMLER-PUCH AKT.- GES. Aug. 9, 1937, No. 21936. Convention date, May 15. [Class 69 (ii)] [Also in Groups XXXI and XXIV] A vehicle is driven by an engine through hydraulic gearing T and an additional gear W which includes a clutch and may be a reversing- gear, the clutch and additional gear being controlled by two hand or foot levers, one of which acts on the clutch only, while the other brings the additional gear into use and also disconnects the clutch. In the construction shown the additional gear is an epicyclic reversing gear cdmprising a driving bevel pinion i<1>, a driven bevel pinion i<2>, and planet pinions h<1> mounted on a carrier a normally connected by a clutch b, c to the shaft of the driven pinion i<2>, so that the reversing gear is normally locked and the pinions i<1>, i<2> rotate in the same direction. The clutch is disconnected in normal driving by means of a pedal d. When the drive is to be reversed a hand lever e is actuated and applies a brake g to the planet carrier a, at the same time disconnecting the clutch through a cam f, acting on the clutch pedal. The hydraulic gear T drives the reversing gear through gear wheels E, and the road wheels are driven from the reversing gear through cardan shafts. Changespeed gearing may be provided in addition to the reversing gear.
Patent GB-833071-A (GB)
Title: Hydraulic cement and method of preparation thereof
IPC: C04B7/36
Filed: 1957-07-11
Abstract: An hydraulic cement is prepared without clinkering in a process comprising grinding in the dry state a mixture of from 5 to 73,7% by weight of calcium oxide, from 1 to 94% by weight of silicon dioxide, from 1 to 94% by weight of aluminium oxide, and from 0 to 25% by weight of iron oxide, and continuing the grinding until sufficient calcium oxide has reacted with the other oxides to cause a rise in temperature of less than 20 DEG F. at three minutes after 200 grams of the ground mixture have been hydrated by mixing with 200 c.c. of water in an insulated container, the ground mixture and water being at ambient temperature when mixed, and the grinding being conducted at a temperature below the point of incipient fusion of the components of the mixture.  The reaction is continued until at least 85% of the calcium oxide has reacted. The rate and extent of the reaction can be enhanced by heating the mixture during or after grinding at a temperature below that of incipient fusion.  The calcium oxide may be that available commercially as quick lime or it may be obtained from limestone. Sources of silicon dioxide are sand and pozzolanic materials e.g. pumicite and fly ash, these materials, providing also a source of the other specified oxides.  The aluminium oxide can be in the form of clays and shales, while sources of iron oxide are Mill scale and iron ore.  The current may also contain minor amounts of other metallic oxides, e.g. manganese oxide and magnesium oxide, derived from the raw materials employed.  Raw materials are selected such that at least 90% of the mixture before grinding consists of calcium oxide, silicon dioxide, aluminium oxide and iron oxide.  Gypsum can be added to the mixture, before or after grinding, as a retarding agent.  The cement can be mixed with water or additionally with sand and coarse aggregates in proportions of from 2 to 6 parts aggregate to one of cement.  In three examples the preparation of cements from mixtures of calcium oxide with pumicite, with fly ash, and with sand and clay, is described.
Patent GB-598238-A (GB)
Title: An improved process for the separation of paraffins from hydrocarbon mixtures
IPC: C07C7/12
Filed: 1944-11-08
Abstract: Normal paraffins are removed from hydrocarbon mixtures by selective adsorption on a dried material prepared by heating a mixture of hydrous oxides of aluminium and silicon with a hydroxide or oxide of a metal of Group II of the Periodic Table, preferably in presence of a solution of a salt of a Group II metal.  The selective adsorption is conducted at elevated temperature and may be used for removing normal paraffins from a mixture of normal and iso-paraffins, naphthenes and aromatics, petroleum oil refinery gases, isobutane contaminated with n-butane, or a naphtha.  In examples an adsorption material is prepared from calcium oxide or hydroxide, alumina gel or trihydrate, silica gel and calcium acetate or chloride solution. This material is used for separating isobutane and n-butane, benzene, and n-heptane or cyclohexane and n-heptane.ALSO:Normal paraffins are removed from hydrocarbon mixtures by selective adsorption on a dried material prepared by heating a mixture of hydrous oxides of aluminium and silicon with a hydroxide or oxide of a metal of Group II of the Periodic Table, preferably in presence of a solution of a salt of a Group II metal.  The selective adsorption is conducted at elevated temperature and may be used for removing normal paraffins from a mixture of normal and iso-paraffins, naphthenes and aromatics, petroleum oil refinery gases, isobutane contaminated with n-butane, or a naphtha.  In examples an adsorption material is prepared from calcium oxide or hydroxide, alumina gel or trihydrate, silica gel, and calcium acetate or chloride solution. This material is used for separating isobutane and n-butane, benzene and n-heptane or cyclohexane and n-heptane.
Patent GB-1160047-A (GB)
Title: Tractor-Drawn Mowing Machine
Inventor: CALDWELL FREDERICK CLAY
IPC: A01D34/66
Filed: 1968-05-09
Abstract: 1,160,047. Mowers. E. L. CALDWELL & SONS Inc. 9 May, 1968, No. 22097/68. Heading A1F. A mower has a central section 10 and side sections 12, 13 pivotally mounted at the longitudinal sides of the central section 10 so that the side sections can be pivoted upwards by 90 degrees to a transport position by cylinder-piston units 42, 43 each having its one end pinned at 44 to the section 10 and the other end to section 12 or 13. The section 10, along with sections 12 and 13, supported at the rear on height-adjustable wheels 19 and 25, is pulled behind a tractor by the draft tongue 32 and the height of its front end is adjustable by cylinder-piston assemblies 40 connected between the section 10 and the draft tongue 32. The cutting blades 50, 60, 61 are driven by the tractor power take-off shaft 55, universal joint 54, telescopic shaft 53, gear box 49, universal joints 64, telescopic shafts 62, 63, universal joints 65 and gear boxes 58, 59. During operation the side members can float resiliently, to follow the irregularities of the ground.
Patent GB-280663-A (GB)
Title: Improvements relating to folding seats for motor vehicles or for other purposes
IPC: B60N2/30
Filed: 1926-09-10
Abstract: 280,663. Sleigh, H. L., and Cheston, A. S. Sept. 10, 1926. Folding seats; rests, arm.-A folding seat, particularly applicable to motor vehicles, comprises a back support 1 pivoted at 2 to a base 4, and a seat member 7, pivoted at 8 to the, support 1, and having a rearward extension 9 connected by a link 10 to the base 4, so that when the back support 1 is folded down on to the base 4, the seat 6 is moved against the member 1. Pivoted arm-rests 11 may be provided to move in a similar way, by means of the extensions' 16 and links 13. The back-rest 20 may be slidably mounted on the support 1 and connected by a link 21 with the part 16, so that it is moved downwards on the support 1, as the seat is folded. The base 4 may be pivoted at 14, so that the completely folded seat may be housed in a recess in the back of the front seat.
Patent GB-498162-A (GB)
Title: Improvements in or relating to collapsible caravans
IPC: B60P3/34
Filed: 1937-08-16
Abstract: 498,162. Caravans; folding vehicles. TEW, G. H. Aug. 16, 1937, No. 22427. [Class 108 (i)] A self-propelled, hand-propelled, or trailer caravan comprises a rigid body of box-like shape formed in two parts hinged together so that the upper part may be turned from the closed position to an open position alongside the lower part in which it forms a floor for the caravan, and a tent-like structure attached to and folded within the body when the latter is closed and automatically erected by the opening of the body. As shown, the upper part 6, consisting of the top, two sides, and two ends, is hinged at 5 to the rear edge of the base 4 which is mounted on a two-wheel trailer chassis, and a canvas &c, cover consisting of two flat sides 7 and a strip 8 forming the end walls and roof is attached to the three remaining edges of the base and to the three free edges of the part 6. The cover is supported in the operative position by U-shaped frames 9, 12, 12, the central frame 9 being pivotally mounted on brackets 10 fixed on the base 4, and the ends of the frames 12 being pivoted to brackets 13 slidable on the limbs of the frame 9 to tension the canvas, the brackets 13 being lockable in a number of positions by a pin passing through holes in the brackets and in the frame 9. A door is provided comprising a hinged flap 23 in the side of the part 6 and a canvas strip 24 normally closing an opening on one side 7 of the cover and adapted to be rolled up and secured by straps or to be let down and secured by sliding-clasp fastenings 26 or by lacing. The cover may be secured to the base 4 and part 6 by nails, tacks, &c. or by press studs or turn buttons. As shown, it is secured to a fillet 27 on the base by press studs 28 so that the part 6, when collapsed, rests on the edge of the base outside the fillet. The cover may be secured directly to the inner edge of the part 6 or to internally-mounted fillets in which latter case a drainage arrangement, such as an internal gutter, is provided. Alternatively, the cover may be detachably secured to the outside edge of the part 6, the edge of the canvas being detached and put inside the body when the caravan is folded, strips of webbing arranged inside the strip 8 of the cover being permanently secured to the edge of the part 6 to enable the canvas to be erected automatically when the caravan is opened out. Lockers 30 may be mounted below the base 4. The frames 12 may be pivoted on a bracket permanently secured to the lower end of the frame 9, or the three frames 9, 12, 12' may all be pivotally mounted on the brackets 10, the limbs of the frames 12 being adjustable in length for tensioning purposes. The side members of the body and the end member remote from the hinged edge may be secured to the base part instead of to the upper part, or alternatively the sides may be divided horizontally, the upper parts being secured to the top member and the lower parts to the base.
Patent GB-1108552-A (GB)
Title: Improvements in or relating to apparatus for lasting footwear
Inventor: RALPHS GEORGE TREVOR
IPC: A43D23/00
Filed: 1964-05-30
Abstract: 1,108,552. Boots &c. RALPHS UNIFIED Ltd. 24 May, 1965 [30 May, 1964], No. 22493/64. Heading A3B. A mould for embracing the heel end of a shoe, e.g. in a lasting machine, consists of a U-shaped support 10, the arms of which are capable of relative movement laterally of the mould, a backing member 13, an inflatable bag 18 and a shoe engaging apron 19 attached to a non-yielding backing piece 20 which provides solidarity at the feather line of the shoe, these four components being detachable from one another. The arms of the U-shaped support 10 may be moved by providing the support with a pivot or by moulding the support from plastics material e.g. nylon. The apron 19, which may be of P.T.F.E., and its backing piece 20 are held on the backing member 13 by pins 17 and the inflatable bag 18 is held in a groove in the backing piece 20 and by flanges 24 which are clamped to the backing member 13 by a plate 26. The inflatable bag 18 consists of a tube having its ends clamped to the ends of the U- shaped support, this clamping providing the only connection between the support 10 and the other components 13, 18, 19, 20.
Patent GB-1179586-A (GB)
Title: Thermal Processor
Inventor: STEVENS NORBERT JAMES
IPC: F26B17/28
Filed: 1967-05-16
Abstract: 1,179,586. Heating, cooling and drying granular &c. materials. N. J. STEVENS. 16 May, 1967, No. 22575/67. Heading F4U. Materials in granular, pasty or slurry form are heated or cooled by hollow discs which are mounted for rotation in the material on hollow shafts through which heat transfer fluid is introduced for circulation through the discs. As shown, the discs 24 are spaced along hollow shafts 22 which extend transversely to the longitudinal axis of an enclosure 10. The discs on adjacent shafts are mutually off-set and arranged in inter-meshing relationship; vanes 48 on the discs advance the material from one end of the enclosure to the other. Heat transfer fluid is supplied to the discs from pipes 39 within the shafts by radial pipes 38 and returns through pipes 43 to the interior of the shaft. The bottom of the enclosure may be shaped to conform closely to the periphery of the discs. For batch operation vanes 48 are omitted and in a first modification (Fig. 4, not shown) the discs are of different sizes and are driven at different speeds. In a further modification (Figs. 5 to 7, not shown) the longitudinal axis of the enclosure is vertical, and the material flows therethrough solely by gravity and is fluidized by air from nozzles within the enclosure.
Patent GB-298332-A (GB)
Title: Power units for use in excavating earth, road building and the like
IPC: E02F5/30
Filed: 1927-08-30
Abstract: 298,332. Hoar, S. Aug. 30, 1927. Rammers. - A portable power unit for road-building and the like, comprises a rectangularly shaped body portion such as 1, 2, 3, a jibsupporting leg 7 pivotally mounted at the lower part of the body, a jib pivotally mounted on the extreme outer end of the leg, a roller 11 mounted within the jib, a hoisting drum 51 within the body portion, a roller 16, carried upon the upper corner of the body portion furthermost from the pivotal mounting of the leg, and a line connected to the upper end of the jib leading over the last mentioned roller, about the first mentioned roller, and to the operating drum, whereby the jib and leg are simultaneously operated. Preferably the apparatus is duplicated at the two ends of the body. A tamping tool 21 may be caused to reciprocate vertically by the positioning of struts 20. Foldable links j0 may limit the drop of the legs. Similar foldable struts may be provided to prevent the body yielding sideways. The winding drums are each driven by a friction disc, the drum being moved vertically by a handle to cause the disc to engage either of two discs driven in opposite directions by a motor 50. When out of use, the legs 7 may be folded up to the body portion and retained by pins passing through holes in lugs 27.