baber/WOPTO huggingface dataset:
Patent GB-736759-A (GB)
Title: Improvements in gas and vapour heaters
IPC: F28F1/12
Filed: 1953-10-22
Abstract: 736,759. Gas-heating furnaces ; steam superheaters ; tubular heat - exchange elements. AKT.-GES. FUR TECHNISCHE STUDIEN. Oct. 22, 1953 [Nov. 7, 1952], No. 29256/53. Classes 64 (1), 64 (3) and 123 (3). In a gas or vapour heater in which the gas or vapour, e.g. air or steam, flows through tubes 1 heated on one side by radiation from a combustion chamber 1 and on the other side by contact with combustion gases, the tubes carry secondary heat exchange surfaces 7 on that side only that is remote from the combustion chamber 1. The tubes are arranged in contact with one another to form a square or cylindrical combustion chamber surrounded by an annular return flue 5. The surfaces 7 may be channelshaped longitudinal fins welded to the tubes, or radial pin fins.
Patent GB-465041-A (GB)
Title: Improvements in or relating to small arms
IPC: F41A25/22
Filed: 1935-10-23
Abstract: 465,041. Automatic pistols. MAUSER WERKE AKT.-GES. Oct. 23, 1935, Nos. 29294 and 29295. Convention dates, May 6, and Sept. 5. [Class 119] The barrel 1, Fig. 1, of an automatic pistol and the breech closing member 2, within which the barrel is mounted and.supported at the front end 3, are inserted in an axial direction in the stock 7 and detachably secured in position by a spring catch 8 having an exposed part 16 inside the trigger guard 15 adjacent the front end of said guard for operation by a finger. The throw of the spring catch is limited by a stop 11. The breech closing device recoils against a spring 4 disposed around the barrel. In a modification, Fig. 2, the spring catch 36 is a pivoted one, the breech closing member 22 is locked to the barrel 21 by a bayonet-like joint 23, and the barrel makes a short recoil against a spring 30 around a rod 29 below the barrel, until a nut 38 is stopped by a shoulder 34 on the stock, whereupon the barrel is rotated by a rib 27 in engagement with a groove in the nut to unlock the breech closing member. In another modification, a nut is dispensed with and the barrel is rotated, by a groove in the stock. The Specification as open to inspection under Sect. 91 comprises also two modifications in which the catch is outside the front end of the trigger guard. This subject - matter does not appear in the Specification as accepted.
Patent GB-320233-A (GB)
Title: Improvements relating to the coke extractor gear of vertical retorts for the carbonisation of coal and the like
IPC: C10B33/02
Filed: 1928-10-11
Abstract: 320,233. West, E., and West's Gas Improvement Co., Ltd. Oct. 11, 1928. Discharging.-In apparatus for discharging vertical retorts a, of the kind comprising coke chambers b which enclose vertically movable plungers f and which are adapted to be swung about pivots c to discharge their contents, the movement of the chambers b is effected from a common reciprocating beam 5 through a system of levers which is self-locking when the chamber is closed and the beam 5 disconnected therefrom. The lever system comprises an arm 6 adapted to be connected to the beam 5 by a removable pin and to rotate a rod 9 which is mounted in fixed bearings and carries a pair of 'links 7 pivoted to levers 8 pivotally mounted on opposite sides of the chamber b. The arrangement is such that, when the chamber h is closed as shown at the left hand side of the Fig., the pivotal connections of the levers 8 with the chamber b and with the links 7 are in line. the chamber b being thus prevented from opening when the pin connecting the arm 6 and beam 5 is removed. Each chamber b is formed with an extension k, which closes the retort when the chamber is swung to its open position, and is provided at the upper end with a door m which, during the closing of the chamber and the subsequent raising of the plunger f, is held in the horizontal position by a chain n; when the plunger reaches the top of its stroke the chain n is released and the door m descends with the plunger to its inoperative position within the recess p.
Patent GB-814354-A (GB)
Title: Improvements in or relating to reflector arrangements for elongated tubular light sources
IPC: F21V11/06
Filed: 1957-09-18
Abstract: 814,354. Reflector arrangements for tubular lamps. LEITZ G.m.b.H., E. Sept. 18, 1957 [Sept. 19, 1956], No. 29373/57. Class 75(2) To reduce glare from a lighting fitting comprising tubular light sources 1 which are each flanked on each side by reflectors 2 extending parallel to the axes of the light sources, wedge-shaped reflecting bodies 3 are spaced longitudinally of, and below, the light sources to extend transversely thereof, each body 3 comprising two reflecting surfaces 6 which form a V in sections parallel to the axes of the light sources 1. The reflecting bodies 3 provide a cut-off of light above the planes 4 containing the upper edge of one body 3 and the lower edge of the adjacent body 3, such planes making an angle γ with the horizontal when the reflecting surfaces 6 make an angle with the horizontal of # = 90‹<SP>#</SP> 2  -. The reflecting bodies 3 may have reflecting lids 9a which may be convex as shown, or may be flat or triangular in section.
Patent GB-1433405-A (GB)
Title: Ventilator assemblies
IPC: E06B7/02
Filed: 1973-06-20
Abstract: 1433405 Ventilators METAALINDUSTRIE HEYCOP BV 20 June 1973 [22 June 1972] 29378/73 Heading F4V A ventilator assembly comprises a hit and miss arrangement in the form of a fixed plate 2 having a plurality of vertical slits, and a sliding plate 4 having corresponding vertical slits. The assembly is secured in a window frame by a plurality of securing members spaced longitudinally of the plate 2. The plate 2 includes projections 2a, 2b at its longitudinal edges which hold the slide plate 4 and afford a snap connection with oppositely directed end flanges 7a and 7b of the securing members 7. The end flanges 7a and 7b have oppositely opening slots 7c and 7d for receiving the window frame members 8 and 9. The number of securing members is determined by the length of the ventilator. The members 7 are also secured to supports 11 by means of mortice and tenon joints. Slots 13a, 13b are arranged on the support member to screen the ventilator. An operating handle may be provided for the sliding plate 4 (Fig. 4, not shown) utilizing a Bowden cable. The edge slits in plate 2 may be covered by a cover plate (also Fig. 4).
Patent GB-475005-A (GB)
Title: Improvements relating to the surface hardening of shafts
IPC: H05B6/36
Filed: 1936-10-29
Abstract: 475,005. Electric heating in surface hardening. DENNEEN, F. S., and DUNN, W. C. Oct. 29, 1936, No. 29384. Convention date, Dec. 31, 1935. [Class 39 (iii)] In surface hardening a shaft by first heating by means of currents induced by an encircling high frequency inductor and then quenching the shaft is arranged eccentrically with respect to the inductor. For a crank-pin 10 the eccentricity is such that the clearance between pin and inductor 11 is least at a position in the plane of, and at the same side as, the webs 26 so as to compensate for the disturbing effects of the webs on the field and produce uniform heating. Insulating spacers may be arranged between the inductor and the pin. According to the Specification as open to inspection under Sect. 91, the inductor may be of recessed, concave, or toothed form on cross-section. The inductor connections and the control of the heating and quenching are effected as described in Specifications 29382 /36 and 29383/36. This subject-matter does not appear in the Specification as accepted.
Patent GB-1331685-A (GB)
Title: Methods of manufacturing magnetic cores
IPC: C04B35/26
Filed: 1971-06-23
Abstract: 1331685 Ferrite bodies PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 June 1971 [26 June 1970] 29423/71 Heading H1H A soft magnetic ferrite core is made by sintering in air and/or oxygen at not more than 1100 C a compressed mixture of Fe 2 O 3 , CuO, Li 2 O, ZnO and optionally CoO providing: 45À0-52À5 mol per cent Fe 2 O 3 ; 5-20 mol per cent CuO; 0-5 mol. per cent CoO; remainder (Li 0À5  + Fe<SP>3+</SP> 0À5 )0 and ZnO wherein the molar ratio of (Li 0À5  + Fe<SP>3+</SP> 0À5 )0 to ZnO is 0À25:1 to 1À5 : 1. The oxides may be wholly or partly replaced by other compounds e.g. carbonates, acetates, oxalates convertible to oxides during sintering. The starting mixture may be prepared at not more than 950 C., cooled and pulverized before compression on to the form of the core e.g. a yoke core or aerial rod. In examples, mixtures of oxides are ground in ethanol, prepared at 850 C., re-ground in water, granulated using ammonium algenate as a binder, compressed and the resulting rings sintered in air. The rings are heated at 150 C. per hour, maintained at peak temperature for 15 mins. and then cooled at 150 C. per hour.
Patent GB-1471806-A (GB)
Title: Galvanic processes and anodes for carrying the processes into effect
IPC: H01M12/06
Filed: 1975-07-14
Abstract: 1471806 Primary cells S T POWERCELL AB 14 July 1975 [15 July 1974] 29454/75 Heading H1B In a primary metal-air cell having an anode active material of iron, and a cathode which is preferably an oxygen electrode, the formation of a passivating coating on the anode is prevented by providing a complexing agent for iron ions, e.g. e.d.t.a., n.t.a., cyanides, thiocyanates, citrates, ammonia, ethylene diamine tetrapropionic acid or diethylene triamine pentaacetic acid. In a modification a second complexing agent may be used for the cathode and oxygen may be supplied to the cathode in the liquid phase. The second complexing agent may be hydroxyquinolines or phenols. The oxygen electrode may be porous sintered Ni or Ag. Active iron powder may be held on a porous Ag or mixture of oxides of Fe and Ba plate electromagnetically. A battery of cells can be built up by providing bipolar electrodes.
Patent GB-294747-A (GB)
Abstract: 294,747. Lamplugh, Ltd., S. A., and Winkles, W. F. June 20, 1927. Composite units for use in the construction of wireless sets comprise a variable inductance a, a variable capacity b, and a change-over switch c, mounted as separate parts on one side of a metal or other plate d with their control knobs spaced apart and accessible at the other side of the plate, the whole being fitted as one piece into the front of a cabinet containing the other parts of the set.
Patent GB-296565-A (GB)
Abstract: 296,565. Kidston, R. Sept. 19, 1927. Baffles.-A baffle plate 1 is inserted above the oven 8 and beneath the hob 4 of a cooking-range, and is shaped so as to derflect the gases downwardly on to the oven and also to give them a circuitous course across the oven top. The baffle plate shown is formed with a recess 3 at the rear edge, having an upstanding wall 2 fitting into a corresponding recess in the hob, which is connected to the chimney. A channel or depression 5 extends from front to rear of the plate and deflects the gases downwards, the depth of the channel increasing towards the rear to give the gases a circuitous course to the outlet 3. The upwardly-cranked edge 7 of the plate extends over the side flue of the oven to catch the gases rising in it.
Patent GB-747109-A (GB)
Title: Improvements in or relating to devices for transmitting rotary motion
IPC: F16D71/04
Filed: 1953-10-29
Abstract: 747,109. Latching switches. GENERAL ELECTRIC CO., Ltd., SIMPSON, A. I. F., and WARRINGTON, A. Oct. 29, 1954 [Oct. 29, 1953], No. 29946/53. Class 38(5) [Also in Group XXIV] A device for positively locking a controlled rotary shaft 2, operating e.g. a frequency-band change-switch in a radio receiver, in one or more, e.g. four, evenly spaced positions, comprises a ball 15 guided in a radial channel 11 in a fixed plate 8, and pressed radially inwards by a bladespring 16 to engage one of a number (four) of tapered peripheral notches 7 in a plate 5 integral with the shaft 2 to lock the shaft positively in a selected position from which it is released by inward axial movement of an outwardly spring-pressed operating knob 4 on an aligned shaft 1, such movement causing one of a number (four) of inclined portions 19, inwardly bent from a plate 17 fast on the shaft 1, to urge the ball 15 radially out of locking engagement with the shaft-notch 7, permitting the shaft 2 to be subsequently turned by the 'knob 4 through torque-transmitting engagement between the bent portions 19 and the notches 7. The initial turning movement causes one of a number (four) of notches 18 in the plate 17 to ride up the inclined side of a fixed projection 23, thus forcing the knob 4 axially outwards so that the spring 16 can move the ball 15 back inwards into the next lock-notch 7 of the driven shaft 2..when it comes into register with the ball. Specification 745,387 [Group XXIV] is referred to.
Patent GB-276203-A (GB)
Title: Improvements in drilling apparatus and the like
IPC: E21B44/00
Filed: 1926-11-26
Abstract: 276,203. LeÀ Tall, F. W., (Westinghouse Electric & Manufacturing Co.). Nov. 26, 1926. Borehole apparatus and processes.-In working and feeding earth drills by separate alternating current motors, a motor 6 tending to raise the drill 3 against a gravity feed is automatically controlled to maintain constant working pressure by connecting its primary windings 7 in series with the primary windings 8 of the working motor 1, resistance 9 being adjusted to determine the normal ratio of currents in the two motors. The invention is designed to replace differential mechanical devices for the same purpose, for example, as described in Specification 215,427.
Patent GB-914190-A (GB)
Title: Improvements relating to measuring apparatus
Inventor: SHPHERD ALEXANDER TURNBULL
IPC: G01B21/06
Filed: 1960-09-01
Abstract: 914,190. Electric selective-signaling systems. FERRANTI Ltd. Aug. 28, 1961 [Sept. 1, 1960], No. 30110/60. Class 40 (1). The photo-electric system for measuring displacement by counting Moire fringe patterns described in Specification 760,321, which is referred to, is modified in that three photoelectric cells spaced apart by 120 degrees with respect to the pattern instead of two cells or four cells or four cells as described in Specification 810,478, also referred to. The threephase signals so produced are converted into two-phase signals which are processed and counted as described in Specification 760,321, but because the three signals of a balanced three-phase system should sum to zero a relatively simple circuit can be used to compensate for fluctuations in H.T. voltage or light intensity. This circuit is shown in Fig. 2 and uses a common cathode resistor 215 for all three amplifying stages 206, 207, 208. An alternative to converting to two-phase signals and using the circuit described in Specification 760,321, is to use the three-phase signals to drive an electric motor as shown in Fig. 6, where each of the three-phase signals is phasesplit and applied to the opposite ends of a stator winding. The motor, in turn, drives an indicating counter. To align a system using three cells, four cells are mounted equally spaced from each other, Fig. 9, and the inclination of the index grating is varied until the signals received by the first and fourth cells are in-phase whereupon the signals received by the first three cells will differ in phase by 120 degrees. The fourth cell can then be removed and used elsewhere.
Patent GB-884507-A (GB)
Title: Improvements in or relating to centrifugal compressors
IPC: F04D29/44
Filed: 1960-09-01
Abstract: 884,507. Centrifugal compressors. ETABLISSEMENTS NEU S.A. DES. Sept. 1, 1960 [June 2, 1960], No. 30231/60. Class 110 (1). In a multi-stage centrifugal compressor, Fig. 5, each impeller 39 comprises a rotating diffuser 42 beyond the impeller blades 40. Further diffusion takes place in the part of the casing surrounding the impeller, comprising a cylindrical wall 49 and side walls 45, 46 which are widely spaced from the impeller to provide lateral spaces 47, 48 which minimize surging. The casing is continued by surfaces of revolution forming walls 51, 52, the annular space between the walls containing whirl-removing vanes 53 and a few radially-extending vanes 54. No conversion from velocity head to pressure head or vice versa occurs in this part of the casing. The multi-stage compressor shown in Fig. 1 is stated to be known. As before, each impeller is formed at its periphery with a rotating diffuser 5, and the side walls of the casing 6 are widely spaced from the impeller to provide lateral spaces 7, 8. The casing 6 is of volute form and is connected by an elbow 15 to the intake of the next stage.
Patent GB-249203-A (GB)
Title: Improvements in gas meters
IPC: G01F3/22
Filed: 1924-12-17
Abstract: 249,203. Hansford, J. Dec. 17, 1924. Liquid-pressure meters. - In gas or liquid meters in which the entrance of the fluid to the measuring-chambers is controlled by slide-valves operated by a crank, additional fluid is admitted to the measuring-chambers after the valves have closed the corresponding admission ports in order to accelerate the movements of the diaphagms towards their end positions. The additional fluid is admitted by providing the slide-valves 20, 21, Fig. 6 with slots 103, 143, 113, 153, one of which registers as the diaphragms approach their end positions with one of four slots 102, 142, 112, 152, Fig. 1, in the valve plate. The four slots 102, 142, 112, 152 communicate respectively with ports 100, 140, 110, 150 leading to the measuring- chambers. The slide-valves 20, 21 are operated by a crank 19, Fig. 6, and connecting-rods 200, 210. A circular plate is provided with holes registering with two compartments formed by a partition plate 23 on the underside of the top plate of the meter and has a dividing plate on its other side which registers with the two corresponding compartments in the gas meter itself. The top plate, partition plate 23, the inlet passages to the measuring-chambers and the exhaust passages from the slide valves are cast in one piece.
Patent GB-829666-A (GB)
Title: Cooking utensil
IPC: A47J29/06
Filed: 1957-09-27
Abstract: 829,666. Egg-shaped moulds. OLLIFF, C. Sept. 26, 1958 [Sept. 27, 1957], No. 30411/57. Class 28 (1). Upper and lower oval mould halves 12 and 6 are clamped between top and bottom coverplates 11 and 1 by a rod 8 and wing-nut 10 to form, e.g. four receptacles for food to be cooked, e.g. by immersion in water. Each shallow cup 3 of the plate 1 carries an upstaning pin on which food to form a core may be staked while, e.g. egg albumen may be poured in at filler holes 13 in the upper moulds 12. In a modification (Fig. 2a, not shown), the mould halves are pressed together by a spring bearing upwards on a hinged yoke. In Fig. 3a the mould halves are held together by an arm 21, 23 pressed towards the bottom support by a sliding sleeve 24. The mould halves may alternately be held together by a circlip (Fig. 4, not shown).
Patent GB-898676-A (GB)
Title: Improvements in or relating to methods of manufacturing foundry moulds and cores
IPC: B22C9/00
Filed: 1958-09-23
Abstract: 898,676. Moulding-machines; moulding processes. REGIE NATIONALE DES USINES RENAULT. Sept. 23, 1958 [Oct. 9, 1957; Nov. 28, 1957], No. 30434/58. Class 83 (1). A method of manufacturing foundry moulds and cores comprises introducing into a covered core box 1 preheated to, say, 200-300- C., a mixture of sand and a thermosetting binder, and heating the box to set a surface layer of the mixture. The thermosetting liquid binder may consist of an aqueous sugar solution with an additional inorganic complex such as is described in Specifications 770,561 and 807,044. It may also be a phenoplast, a urea formaldehyde, or malamine formaldehyde, resin, or it may be a soluble organic or inorganic silicate. The box cover may be plane, 3, Fig. 1, or shaped, 5, Fig. 2.
Patent GB-332141-A (GB)
IPC: G01G23/00
Filed: 1929-10-08
Abstract: 332,141. Naamlooze Vennootschap Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen. July 19, 1929, [Convention date]. Casings. - In an automatic or semiautomatic weighing- scale of the drum type the indicator casing e is directly or indirectly mounted on the base casing a or base plate bv a pair of hollow pillars or columns c through which pass the operating mechanism for the indicator drum, and the parallel guiding means for the scale pane. The pillars c have an elliptical cross-section, the major axis being at right angles to the longitudinal axis of the indicator casing. A plate g is fitted to the top of the indicator casing for the display of goods.
Patent GB-1117668-A (GB)
Title: Improvements in and relating to the production of composite metallic billets by powder metallurgy
Inventor: DREW JOHN HENRY
IPC: B22F7/02
Filed: 1965-07-19
Abstract: A sintered composite metal body suitable as a rivet type electrical contact is made by compacting together two layers of different metal powders which form a eutectic alloy, an intermediate layer of a metal powder which does not form a eutectic with the metals of the two layers being interposed between the two layers and sintering the compact above the eutectic forming temperature.  The first layer of powder may be Ag, Ag/Ni, Ag/Cu, Ag/C or Ag/Fe and the other layer may be Cu, Cu/Sn, Cu/Zn, Cu/Ag, Cu/Cd or Cu/Sn/Cd.  The intermediate layer may be an Fe group metal such as Ni or Ag powder coated with Ni. The compact is sintered at 900 DEG C. in cracked ammonia, then coined and cold forged.  In an alternative embodiment a composite strip may be formed and individual compacts stamped therefrom.
Patent GB-153264-A (GB)
Title: Improvements in and relating to cycle lamps
IPC: F21S13/00
Filed: 1920-10-28
Abstract: 153,264. Nier & Ehmer. April 15, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Vehicular lanterns.-In a cycle lamp, the carbide container 16, the water container 19, the light projector 23, and the gas chamber 2 carrying the burner are carried by a clip 26 secured to the bracket attachment means 27 so that the parts of the lamp may be taken apart. In one form, the clip 26 engages the cylindrical part of the gas chamber, inwardly directed pieces 24 on the light projector 23 engage the outwardly directed ends of the clip, and the carbide container 16 from below and the downwardly tapering water chamber 19 from above are pushed into the gas chamber and connected to one another by the screwed outlet part of the water chamber 19 engaging the water-conducting tube on the carbide container 16. The water chamber is widened considerably towards the top to prevent the light projector from coming away during use.
Patent GB-774662-A (GB)
Title: Improvements in and relating to sealing glands for electric cables
Inventor: MELTON HARRY JACK
IPC: H02G3/06
Filed: 1955-10-26
Abstract: 774,662. Stuffing boxes. ERICSSON TELEPHONES, Ltd. Oct. 26, 1955, No. 30562/55. Class 122 (5). [Also in Group XXXVI] A cable is secured to a hollow body 8 by a hollow bolt 1 screwed into an aperture in the body, a tubular spigot 2 movable within the bolt, means for attaching the cable to one end of the spigot and a deformable insulating collet 6 in the other end of the spigot, the attachment of the bolt 1 to the body 8 securing the spigot in the bolt and deforming the collet to seal the aperture. With an armoured cable (Fig. 1) the armouring wires are secured to spigot 2 by a band clip 13, the insulation 7 terminating within the spigot and the conductors 4 passing through collet 6 and the aperture in the body 8, the inner part of the aperture being of reduced diameter. The bolt 1 is tightened to press against head 12 of spigot 2 and deform collet 6, and is secured by lock nut 5. With an unarmoured cable (Fig. 2) the end is prepared so that the sheath 20 projects beyond the end of insulation 16. A lead collet 19 is arranged within the end of the sheath and a nut 17 having a bevelled bore receives the end of the spigot, which is threaded to clamp the sheath between the collet and the bevelled bore of the nut, the parts being secured by lock nut 18. The assembly is sealed in the aperture as described with reference to Fig. 1.