baber/WOPTO huggingface dataset:
Patent GB-707541-A (GB)
Title: Magnetrons
Inventor: CALLICK ERIC BRIAN BUTLER
IPC: H01J25/58
Filed: 1950-07-06
Abstract: 707,541. Magnetrons. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 8, 1951 [July 6, 1950; Sept. 30, 1950], Nos. 16878/50 and 23964/50. Class 39(1) A robust miniature magnetron anode structure consists of pairs of plates 10 supported by box girders 4 so as to fit together to form a square or rectangular anode section. The anode plates 10 as shown in the form of channel girders, fit into rectangular openings 8 in the box girders, and are secured by tabs 9 passing through slits in the anode plates and bent over. The ends of a filamentary cathode or of a cathode heater are located by slotted mica plates 11 and tensioned by springs 12 mounted on channel girders 13. Support wires 6 and 14 are held in mica discs. The box girders 4 are also provided with tabs 7 for insertion into these mica discs. The cathode 1 may consist of the usual cylindrical sleeve or of multiple filaments. Four filaments may be arranged as two pairs located along the edges of an imaginary rectangular section cathode. The filaments may be arranged as a conical structure. A twin filament, arranged as a V may be used. The anode plates may be convex towards the cathode, as shown in Fig. 2. Typical operational curves are given for the magnetron described.
Patent GB-421125-A (GB)
Title: Improvements in the manufacture of cigarettes
IPC: A24D1/00
Filed: 1933-06-14
Abstract: 421,125. Cigarettes. MOLINS, W. E., 2, Evelyn Street, Deptford, London. June 14, 1933, No. 16966. [Class 130] Cigarettes are made with the filler, whether wrapped or unwrapped, shaped with four substantially equal concave walls 1, which afterwards expand naturally to form cigarettes of substantially square or rectangular crosssection. The corners may be sharp, or rounded as shown at 2. The cigarettes may be made by inserting tobacco into a paper tube which is caused to conform to the configuration shown, but preferably they are formed from a continuous rod pressed to this configuration. Specification 407,970 is referred to.
Patent GB-1013725-A (GB)
Title: An optical maser
IPC: H01S3/097
Filed: 1964-04-24
Abstract: 1,013,725. Lasers. NIPPON ELECTRIC CO. Ltd. April 24, 1964 [April 26, 1963], No. 17025/64. Heading H3B. A laser has two active mediums each emitting light of characteristic wavelength, one medium being gas which is pumped by a hollow type glow discharge between a cathode and an anode, and the other medium being metallic vapour produced by cathode spluttering due to the glow discharge. As shown in Fig. 1, coaxial cylindrical electrodes 11, 12 connected to a power source 20 are spaced by a ceramic ring 17, the electrodes and ring together with metal bellows 18 and parallel reflectors 13, 14 forming a gas enclosure 19. The reflectors have multilayer dielectric films which permit light transmission of about 0À3% in the required range of wavelengths and have a reflecting power which decreases abruptly outside this range. The gas may be helium-neon mixture producing light of about 1À15 microns, while the cathode, material may be copper producing light of about 1À6 microns when vaporized by the glow discharge, emission by the vapour being due to electron inversion between the 5<SP>2</SP>P 1 / 2  and 5<SP>2</SP>S1/2 energy levels. Other suitable gases singly or in combination are argon, krypton, xenon and oxygen, while alternative cathode materials are titanium, zirconium, hafnium, niobium, tantalum, tungsten, molybdenum, iron and nickel. Both reflectors may transmit light emitted by the gas and by the vaporized metal, or each reflector may transmit light originating from a different one of the two active mediums. A modified construction is shown in Fig. 2 in which curved external reflectors 23, 24 are used and the ends of the gas enclosure are formed by quartz plates 23<SP>1</SP>, 24<SP>1</SP>, inclined at the Brewster angle. Mention is made of a gas enclosure for the complete assembly. The reflectors may be formed of plastic, glass or quartz.
Patent GB-482354-A (GB)
Title: Apparatus for measuring roentgen rays
IPC: G01T1/20
Filed: 1936-06-19
Abstract: 482,354. R÷ntgen - ray apparatus; exposure meters. I. G. FARBENINDUSTRIE AKT.-GES. June 19, 1936, No. 17082. Void. Convention date, June 20, 1935. [Class 98 (i)] Apparatus for measuring X-rays comprises a circuit including a galvanometer 5 and a light-sensitive cell 1 in front of which is arranged a fluorescent screen 2. Between the cell and the screen a lead glass plate 3 may be placed to intercept direct X-radiation. The galvanometer may be in series with the cell, or may be used as a null instrument in a compensation or bridge circuit. Various applications of the apparatus are described, including its use for switching off the ray-tube automatically after a predetermined exposure, and the use of two similar units, each receiving the rays through a different thickness of metal foil, e.g. aluminium, whereby galvanometer readings may be obtained which indicate the quality or hardness of the rays. In the second-mentioned application the cells may be arranged to send currents in opposite directions through a single galvanometer.
Patent GB-237237-A (GB)
Title: Improvements in drives for metal cutting machine tools
IPC: B23B3/16
Filed: 1925-07-03
Abstract: 237,237. Polack, E. July 21, 1921, [Convention date]. Drilling-machines ; driving g machines.-In a machine having a. tool- Itead a rotatable about a hollow spindle, f and carrying a rotating tool b, the latter is driven by bevelbearing c from a shaft c connected by bevel-gearing g to a driving shaft h, the bearings i for the shaft h being carried bv a plate m rotatably adjustable on the index-plate n for the tool-head. A bearing k secured to the machine frame prevents the shaft h and head a from rotating about the axis e and a nut q secures the index-plate to the spindle f.
Patent GB-1046344-A (GB)
Title: Kitchen equipment units fitted with a plurality of electrical domestic machines and appliances
IPC: A47L15/00
Filed: 1964-04-24
Abstract: 1,046,344. Cabinets, SIEMENS-ELECTROGERATE A.G. April 24, 1964 [April 26, 1963], No. 17185/64. Headings A4H and A4U. Kitchen cabinets including such units as a base 1, refrigerator unit 2, oven unit 3 and cupboard 4 are provided with side strips 5 and connectors 7 sa they may be fixed side by side or stacked on one another by means of plug and socket connectors 6. The sides of a column of kitchen equipment may be covered by sheet metal cladding 19 or wood cladding.
Patent GB-394812-A (GB)
Title: Box lock with bow-shaped hasp locked from two sides
IPC: E05B67/22
Filed: 1932-06-18
Abstract: 394,812. Locking vehicles against unauthorized use. KASEL, W. and MENZ, H., 108, Copenicker Strasse, Berlin. June 18, 1932, No. 17324. [Class 79 (iii).] A sprag p for a motor-car disc wheel carries pins k<x> which engage with a special lock i mounted on a lever s which embraces the edge of the wheel.
Patent GB-772837-A (GB)
Title: Method and apparatus for effecting heat exchange
IPC: F28C3/14
Filed: 1953-06-23
Abstract: <PICT:0772837/III/1> <PICT:0772837/III/2> <PICT:0772837/III/3> <PICT:0772837/III/4> <PICT:0772837/III/5> Heat is transferred from one gas or liquid or fluid-borne pulverulent solid to another by bringing moving solid or molten particles of a size between 0.1 to 2 mm. into direct contact first with one gas &c. and then with the other.  The particles are uniformly distributed and have laminar flow through the heat exchange chamber, the members shaped so as not to create turbulence are located in the path of the particles to reduce their falling velocity.  The heat-carrying particles pass successively through a heat-exchange chamber 1, a discharge valve 3, a transporting device 4, a storage bin 5, a valve 6, a second heat exchange chamber 2, and a separator 7.  The particles may be returned to the chamber 1 by a conveyer 8.  Perforated sieves 10, rotors with radial walls forming troughs, or devices like Rootes' blowers are provided near the top of the chamber 2 to distribute the particles evenly.  Stationary baffles 11, such as perforated sieves or roof-like or helical blades, are provided.  A gas to be treated is fed into the chamber 2 through a ring-shaped pipe 13 with outlets 14. A pipe 16 connects the chamber 2 to the bin 5 to equalize pressures. The gas may be fed into the chamber 2 at a number of levels between the baffles 10.  The particles are carried from the valve 3 to the bin 5 by a stream of air or other gas or vapour fed in through an injector 40, Fig. 3.  The separator 7, Fig. 6, may comprise a central nozzle 7a for supplying an upward jet of compressed air or other gas or vapour, and annular pockets 7d, 7c, 7b to receive particles of different sizes.  The chamber 2 may be replaced by a rotatable drum 2c, Fig. 7, with a perforated gas supply pipe 13a which may be oppositely rotatable.  A chamber to melt a heat carrier comprises a cupola-like furnace 1a, Fig. 8, with an enlarged lower part 1b, burners 101, secondary air supply pipe 102, and flue gas outlet 103. The bed of molten material at the bottom has a floating surface layer of molten slag.  The heat exchange may be accompanied by chemical reactions, e.g. the oxidation or reduction of the heat carrier, the cracking or reforming of hydrocarbons, the synthesis of ammonia from air or flue gases or both, the conversion of carbon monoxide and water into hydrogen and carbon dioxide and the generation of water gas from powdered solid fuel (see Group XII).  The heat carrier may be a catalyst or have a catalyst added to it, or the walls of the heat exchange chamber 2 or baffles 10 or distributers 11 may be catalytic.
Patent GB-346613-A (GB)
Title: Improvements in and relating to apparatus for tipping the bodies of vehicles
IPC: B61D9/02
Filed: 1930-06-05
Abstract: 346,613. Tipping vehicles. MALIA, A., 48, Denewell Avenue, High Heaton, Newcastle-on-Tyne. June 5, 1930, No. 17439. [Class 108 (i).] In tipping vehicles of the kind in which a nut on a rotary screw-threaded shaft is connected to the body to effect the tipping the nut is pivotally mounted on one arm of a lever while the other arm is connected by linkwork to the body. The screw shaft 4 is carried by a bearing block 3 pivotally carried by brackets 1, 1a and the nut 6 is pivotally engaged with the arm 7 of a bell-crank lever the other arm 8 of which is connected to the body by a link 9. The screw shaft 4 is rotated by means of an arm 16 and ratchet 12 and pawl 14, a retaining pawl 19 being provided which is released by a rod 20 to allow the body to resume normal position. In a modification the link 9 is connected to the middle part of a lever 24, Fig. 5, one end of which is connected to the body at 25 while the other end is connected by link 26 to arm 8 of the bell-crank lever. Mechanical advantage at commencement of tipping is obtained by arranging arm 7 to project slightly towards the front of the vehicle.
Patent GB-1383415-A (GB)
Title: Cooling device for use in apparatus for continuously producing glass ribbon by the float method
IPC: C03B18/22
Filed: 1972-04-17
Abstract: 1383415 Cooling float glass ribbon VETRERIA DI VERNANTE SpA 17 April 1972 [16 April 1971] 17543/72 Heading C1M [Also in Division F4] In the production of continuous glass ribbon 3 by floating molten glass on a bath 4 of molten metal in a tunnel 6, a cooling device for removing heat comprises a heat pipe 1 with one portion 7 of the closed body 1 located at or adjacent the location to be cooled and one portion 9 passing through an aperture 10 of the sidewall of the tunnel 6 and subjected there to a cooling medium. The central portion 7 of the U-shaped body 1 extends parallel with the edge 2 of the glass ribbon 3 and is coated externally with graphite. The outer ends 9 of the U are bent upwardly and sealed (17) at the ends and fins 16 are welded thereto to assist cooling. The pipe of steel tubing is internally covered with porous material (18) comprising a wire gauze rolled up on itself and adhering to the tubing. Vaporizable material suggested is mercury and sodium amalgam to give the required temperature, e.g. 450‹ C. Specification 1,027,719 is referred to.
Patent GB-855499-A (GB)
Title: Magnetic focussing unit for cathode ray tubes
Inventor: COPE JOHN EDWARD
IPC: H01J29/68
Filed: 1957-03-22
Abstract: 855,499. Cathode ray tubes. PYE Ltd. March 14, 1958 [March 22, 1957], No. 17683/60. Divided out of 855,498. Class 39(1). A magnetic focusing unit for focusing the electron beam of a cathode ray tube comprises a non-magnetic housing 2, 3 surrounding two annular permanent magnets 4, 11 side by side, axially magnetised, and with like poles adjacent one of the magnets -4- being fixed to the housing and the other magnet 11 being axially and rotationally movableby an actuating member 8a projecting through the peripheral wall of the housing. There are preferably three radial arms 8a projecting through inclined slots in the casing part 3. A further arm can be secured to arm 8a. Two beam centering magnets constructed as in R may be arranged on the front of housing member 3. In assembly the magnetic focusing unit is slid along the tube neck and then clamped in the correct axial position. The magnets 4, 11 have polepieces 5, 6 ; 12, 13 stuck thereto and magnet 11 is held by clamps 10. The housing 2, 3 is of Al cups. The tube is of the picture reproducing type. Specification 737,406 also is referred to.
Patent GB-255229-A (GB)
Title: Improvements in electrical transformers
IPC: H01F27/28
Filed: 1925-07-10
Abstract: 255,229. M.-L. Magneto Syndicate, Ltd., and Morris, D. K. July 10, 1925. Transformers. - Transformers, more particularly those employed as intervalve couplings in wireless reception apparatus, are provided with primary and secondary windings which comprise similar coils 4, 5 having the same number of turns and wound in the same sense arranged side by side on a coil such as that indicated at 2, the additional turns of the longer winding being contained in layers 7 extending over the coils 4, 5. The windings are started at opposite ends of the core, and in order that, when different gauges of wire are employed, the two coils will have the same diameter of turn at equal distances from the ends, the turns of the smaller wire are appropriately spaced. The windings may be arranged on a core of H form and their outward faces may be battered as shown, or, alternatively, the windings may be straight sided and may be arranged on an ordinary shell type core. Self capacity may be reduced by a construction on the lines described in Specification 208,895, and the transformer may be enclosed in a casing similar to that described in that Specification.
Patent GB-924713-A (GB)
Title: Improvements in and relating to means for remotely controlling the injection pump ofa diesel engine
IPC: F02D1/00
Filed: 1960-05-19
Abstract: 924,713. Starting and stopping fuel injection engines. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA, NARODNI PODNIK. May 19, 1960 [May 20, 1959], No. 17752/60. Classes 7(3) and 7(5) A pair of members 3, 3<SP>1</SP>, Fig. 2, urged' apart by a spring 4, are moved together when an electromagnet 6 is energized to stop the engine by moving a rod 7, and hence the injection pump control rod 3, to the right to the stop position, the full load delivery stop 12 being thereby moved sideways from between the members 3, 3<SP>1</SP>, so that when the control rod 1 is returned to the left by the governor, the stop 12 is ineffective and the rod 1 is permitted to move to the starting position, Fig 1. When the engine starts the governor moves the rod 1 to the right and the stop 12 is forced back into its effective position between members 3, 3<SP>1</SP>, by a spring 15.
Patent GB-1026654-A (GB)
Title: Signal generator
Inventor: HOFFMAN GUNTHER
IPC: H03B21/02
Filed: 1964-04-29
Abstract: 1,026,654. Producing electric oscillations. U. GOLTERMANN, [trading as WANDEL U. GOLTERMANN]. April 29, 1964 [May 4, 1963], No. 17776/64. Heading H3F. In a beat frequency oscillator in which oscillations from a fixed frequency oscillator 1, Fig. 1, are combined with those from a widely variable oscillator 2 in a mixer 3 and the difference frequencies fed to an output terminal via a low-pass filter 4, each of the oscillators feeds a chain of frequency dividers 5, 9, 13 and 6, 10, 14 respectively. The outputs of the frequency dividers are combined in mixers 7, 11, 15, the outputs of dividers 5, 9, 13 being first passed through low-pass filters 17, 18, 19 to remove harmonics, and the difference frequencies from mixers 7, 11, 15 are also fed to the output terminal via low-pass filters 8, 12, 16 respectively and a selector switch S. The frequency of the oscillator 1 may be made variable over a narrow range; in a modification a second narrower range is obtained by feeding the output of the frequency divider 5 (Fig. 2, not shown), to a mixer 7, to which is also fed the output of a fixed frequency oscillator 20; the output of mixer 7 is fed to a low-pass filter 21 and thence to contact f of a switch S 1 , whereby the difference frequency may be substituted for that from oscillator 1. The arrangement is such as to provide low-frequency ranges in which the errors due to oscillator drift are reduced, due to the frequency division which is provided.
Patent GB-456573-A (GB)
Title: Improvements in and relating to magnetic sound recording apparatus
Filed: 1936-06-26
Abstract: 456,573. Magnetic sound - recording apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Allgemeine Elektricitõts Ges. ; 2, Friedrich Karl-Ufer, Berlin) June 26, 1936, No. 17813. [Class 40 (ii)] In recording sound by magnetization of a carrier such as a steel band or wire, the occurrence of ground noise during reproduction is prevented by using in the recording apparatus a device which automatically demagnetizes the carrier during silent periods of the recording. The apparatus shown comprises a recording magnet 2 having a supplementary winding through which a constant current is supplied by a battery 6. Before passing the magnet 2, each point on the carrier 1 is polarized by a wiping-out device (not shown), and the current in the supplementary winding is predetermined to produce a condition of magnetization most favourable for recording. A rectifier 5 arranged in the output of the amplifier 3, in parallel with the magnet 2, is adapted to operate a relay 8 whenever a pause occurs in the sound being recorded. This operation short-circuits a resistance 7 and so increases the current in the supplementary winding of the magnet that the polarization of the carrier is neutralized. Alternatively, instead of the supplementary winding, a separate magnet for depolarizing the carrier may be provided.
Patent GB-178214-A (GB)
Abstract: 178,214. Didrichson, O. Jan, 17, 1921. Cleaning, fluid-pressure processes for. - A steam nozzle for cleaning boiler flues has pipes 46. 47 with side and end apertures 48, 53. The hollow T-joint 45 connects the nozzle to the hollow shaft 34, 17 which may be rotated about its axis by means of hand-wheel 30. The portion 17 of the shaft ,is perforated to admit steam from the enclosing casing 10, to which steam is supplied through the pipe 8 and valve 16. The cleaner is secured in position by washers 38, 39 and the lock-nut 40, and in Fig. 2 it is is shown attached to the wall of a Scotch boiler. The nozzles 46, 47 balance each other so that the blower can be readily rotated.
Patent GB-1117375-A (GB)
Title: Process for the production of medium to low carbon ferromanganese of low silicon content
IPC: C22C1/02
Filed: 1966-04-22
Abstract: In a cyclic process for the production of low silicon (up to 1.5%) low or medium carbon (up to 3%) ferromanganese a molten synthetic slag containing 23 to 35% manganese (substantially all of which is in the manganous state) and 5 to 20% SiO2 is reacted with a ferromanganese containing 5-20% Si to give the product and a partially spent slag containing 13-22% Mn which is reacted with Fe-Mn-Si containing 15-35% Si to produce ferromanganese containing 5 to 20% Si for use in a further cycle and a final slag containing less than 10% Mn.  In the slag-metal reactions the ratio slag: metal is preferably 1.5-3.1.  The synthetic slag may be prepared by the reaction of manganese ores and/or manganese slags, a basic fluxing agent (limestone, magnesite or dolomite optionally in the calcined condition) and a reducing agent (coal, coke, Si-Fe-Mn, or Fe-Si) preferably in a submerged arc furnace.
Patent GB-530182-A (GB)
Title: Improvements in or relating to dash pot devices, for the carriages of printing-telegraph receivers and the like
IPC: H04L13/18
Filed: 1939-06-20
Abstract: 530,182. Typewriters &c. CREED & CO., Ltd., and SALMON, R. D. June 20, 1939, No. 17960. [Class 100 (iv)] Carriage-returning mechanism. The carriage of a printing-telegraph or the like is damped during return by means of a dashpot having a piston-rod which is driven at a reduced speed by the carriage during letter-spacing, and is free during return. As applied to a page-printing telegraph, a spring drum c for returning the type-carriage a by means of a tape b is provided with a pinion d engaging a rack e which has a fork f co-operating with a flange g on the piston-rod k of a dashpot h. During letter-spacing, the carriage recedes from the flange, the spring drum is wound, and the piston m is displaced proportionately to the carriage-movement. When the return-signal is received, the carriage is returned by the spring drum, the piston-rod remains free, and the carriage, on engaging the flange g, is cushioned by the dashpot, the cushioning-effect depending on the previous displacement of the piston. The pinion and rack may be replaced by other devices, such as a cam.
Patent GB-720226-A (GB)
Title: Improvements relating to teeth
IPC: A61C19/00
Filed: 1952-07-16
Abstract: 720,226. Tooth protectors. HUNT, F. C., and HUDSON, W. G. June 15, 1953, [July 16, 1952], No. 17976/52. Class 81 (2). A tooth protector for either natural or artificial teeth made of a thin sheath of pliable or flexible material, preferably a transparent thermoplastic dental material, is shown in the Fig. applied to an upper denture the teeth 1 and part of the gum portion 2 of the plate 3 being covered with the sheath 4. The sheath may be provided with external indentations at the divisions between the teeth and it may be tinted as required. The sheath may be used for the teeth of animals e.g. horses, dogs. Instead of a single sheath for the upper teeth or lower teeth, a sheath may be made in sections. Thus, a sheath or sheaths for remaining natural teeth may be made separately from a sheath for teeth of a partial denture. The sheath may be provided with actual biting edges.
Patent GB-1341057-A (GB)
Title: Control of trace impurities in cyclohexane production
IPC: C07C7/13
Filed: 1971-05-28
Abstract: 1341057 Cyclohexane GULF RESEARCH & DEVELOPMENT CO 28 May 1971 [12 June 1970] 18072/71 Heading C5E High purity cyclohexane is made by hydrogenating benzene in a plurality of reactors containing nickel on kieselguhr catalyst, the minimum inlet temperature of each of the reactors being maintained sufficiently above the dew points of the reactants such that the reactants exist solely in their vapour phase in all parts of the reactors, the maximum temperature in the first and last of the reactors being 243À6 C. and the sum of the space-time parameters of at least the first and last reactors being not more than 0À4 kg. catalyst hours/kg. total fluid. Preferably 3 reactors are used the middle one having a maximum outlet temperature of 260 C. The product of the last reactor may be percolated through a 4  or 5  molecular sieve.