baber/WOPTO huggingface dataset:
Patent GB-1144513-A (GB)
Title: A bracelet fastener
IPC: A44C5/20
Filed: 1966-06-14
Abstract: 1,144,513. Buckles. ESPORTAZIONE OREFICERIE INVERNIZZI E.0.1. S.r.l. 14 June, 1966 [24 June, 1965], No. 26494/66 Heading E2A. A bracelet fastener includes a socket part B having a plurality of recesses 15, a hollow plug part A having a portion which is capable of being received in the socket part, latch means 10 in the plug part for engaging any one of the recesses to secure the plug part to the socket part and slide means 9 slidable in the plug part for moving the latch means so that the latch means is capable of engaging with and disengaging from any one of the recesses wherein part 8 of the slide means is outside the plug part so that the slide means is operable from outside the fastener. In the construction shown the latch means 10 is a blade spring having two portions 10b, 10c the free end portion 10a of the portion 10c normally projecting through an aperture 13 in the side wall of the plug part to engage any one of the recesses 15; the other portion 10b has a stop 11 projecting at right angles, the size of which is such that it fits within a cavity 12 of the part A so that the portion 10b is prevented from movement. The slide means 9 which controls the movement of the portion 10c so that its end portion 10a either projects from or is retracted into the plug part A has two projections 9a, 9b which when the end portion 10a projects from the plug part A are engaged with recesses 14a, 14b respectively in the portion 10c; to retract the end portion 10a into the plug part A the slide means 9 is slid axially of the plug part A so that its projection 9a engages the recess 14b. The part 8 of the means 9 is a button. The two parts are connected to the bracelet by providing them with end portions in the form of eyes 1a, 1b. In a modification the shape of the latch means 10 differs from that shown and it only has a single recess for engagement by a single projection provided by the slide means 9 in the fastening position; to retract the end portion of the means 10 into the plug part A the means 9 engages a part of the means 10 adjacent to the recess. Instead of the two parts having eyes for engagement with the bracelet, they each have a block which is provided with holes for engagement with pin portions at the end portions of the bracelet.
Patent GB-274325-A (GB)
Title: Improvements in and relating to oil break electric switches
IPC: H01H33/68
Filed: 1926-10-23
Abstract: 274,325. Magrini, L. Oct. 23, 1926. Addition to 266,290. Oil switches; cases. - In order to prevent the access of air to the casing of the switch described in the parent Specification the plunger 8 is made hollow and the interior communicates with h the atmosphere, small apertures 5<11> being formed near the bottom of the plunger so that normally it is filled with oil and acts as a solid piston when being raised quickly but on being raised slowly or left standing in the raised position the oil leaks through the aperture 5<11> and completely fills the reservoir 2. The outlet pipe 4<1> has an extension fitted with a non-return valve 16 so that air cannot enter the switch casing- even if a partial vacuum is formed therein, as for example by breaking the circuit quickly between contacts 5, 5<1> when little or no current is flowing therein, and no appreciable arcing occurs.
Patent GB-354085-A (GB)
Title: Improved method of inserting pole shoes in ignition magnetos
IPC: H02K21/38
Filed: 1930-09-05
Abstract: 354,085. Magnetos. FABRICA ITALIANA MAGNETI MARELLI, 22, Corso Venezia, Milan, Italy. Sept. 5, 1930, No. 26601. Convention date, Sept. 6, 1929. [Class 35.] Inductor machines.-Magnetic material is incorporated by casting in the body of an ignition magneto and comprises a stack of laminations which is complete at the place where the rotor bore is to be made, but comprises only a portion of the laminations in the region forming the limbs of the pole shoes. Each lamination, Fig. 2, consists of a central portion 1 and two offset wings 2, 3, the wings of adjacent laminµ being staggered. The assembled stack is secured by rivets 4, Fig. 3, and the wings are bent to the required shape in which they are held by a rod 5 and a spacing sleeve 7. Another stack of laminµ 8 forming the armature core pole shoes is secured by lugs 8<1> and rivets 11 to the stack 1. The assembly is then located in a mould and the magneto body cast on, after which the portion lying within the dotted circle is removed by machining, the rod 5 is withdrawn and the pole shoes and magneto body are drilled to enable a cylindrical bar magnet with tapering ends to be forced in.
Patent GB-323251-A (GB)
Title: A piston system for double-acting internal combustion engines
IPC: F16J1/02
Filed: 1928-09-17
Abstract: 323,251. Schwarz, J. F., and Hohe, E, G. Sept. 17, 1928. Crossheads. - In an internal-combustion en - gine in which the pistons b, c of opposed cylinders act on the crank-shaft by means of return connecting-rods from a crosshead a working in a cylindrical guide of larger diameter than the cylinders, the crosshead being attached to the piston-rods h, g by means of the gudgeon. pin d, the bore a<1> in the crosshead is made of sufficient diameter to permit withdrawal of the pistons through the crosshead after removal of the gudgeon-pin. The crosshead may be provided with an oil-catching plate m, Fig. 4, which may be integral with the crosshead, or separate, and may be in the form of a cap fitting over the crosshead and forming the working surface. Specificatinn 311,923 is referred to.
Patent GB-942322-A (GB)
Title: Improvements in method and apparatus for winding packages of roving
IPC: D01H1/36
Filed: 1960-08-02
Abstract: 942,322. Winding packages of roving. INSTITUTE OF TEXTILE TECHNOLOGY. Aug. 2, 1960 [Oct. 23, 1959], No. 26720/60. Heading D1D. A bobbin is wound with successive layers of roving such that the lengths of the successive layers are progressively shorter by increasing increments whereby the end profiles of the wound roving are convex. The apparatus for winding such rovings includes a transmission mechanism constructed to change successive and constant displacements of an input member of the roving frame to a sequence of output motions for turning the builder shaft of the roving frame through angular displacements that are successively and disproportionately greater than the displacements of constant amplitude. As shown the mechanism includes three discs 63, 67 and 70 on a common shaft 56. Of these three discs, only the disc 67 is coupled to the shaft 56, the shaft 56 being driven via a reversible electric motor 72 and a slipping clutch 75. When the bobbin rail is moving downwardly the motor 72 turns the disc 67 backwardly until a pin 68 thereon engages a pin 64 on the disc 63 to cause the clutch 75 to slip. When the bobbin rail is moving upwardly the motor 72 turns the disc 67 forwardly until the pin 68 thereon engages a pin 71 on the disc 70 to cause the clutch 75 to slip The disc 63 is held stationary at any desired setting by a locking screw 66 but the disc 70 receives forward increments of motion from the half revolutions of the normal tumbler shaft (not shown) via an upright sprocket 48, chain 80, and sprocket 81, the sprocket 81 carrying a gear 82 that turns the disc 70 step-by-step via gears 83, 84. Thus, for each half revolution of the tumbler shaft, the pin 71 is moved progressively away from the pin 64 and the permitted path of travel of the pin 68 on the disc 67 is thus increased. Coupled to the disc 67 is a ratchet mechanism 90, 91, 92 such that the disc 67 drives an output sprocket 51 via intermediate gears when the disc 67 is turning forwardly and such that the output sprocket 51 remains stationary while the disc 67 is turning rearwardly. Each of the turning movements received by the output sprocket 51 is thus greater than the preceding one and these turning movements are used to turn the builder shaft 45 to cause the jaws of the binder of the roving winding mechanism to close by increasing amounts that are proportional to the angles through which shaft 45 is turned. The builder thus produces a bobbin winding having convex ends.
Patent GB-1282532-A (GB)
Title: Closure assembly
IPC: B65D55/08
Filed: 1970-06-03
Abstract: 1282532 Caps for containers ALUMINIUM CO OF AMERICA 3 June 1970 [11 June 1969] 26850/70 Heading B8T A closure comprises a dished cap 8 held in place by a frangible ring 6, which has a ring pull tab 16 and weakened tear-lines 20, 22, 24. The frangible ring is preferably metallic and has notches 60, 62 which facilitate the opening-out of the ring during removal. The cap 8 may be metallic with a sealing gasket 52, or may be made from a self-sealing plastics material.
Patent GB-247278-A (GB)
Title: Machine for twisting metal plates and other objects
IPC: B21D11/14
Filed: 1924-11-11
Abstract: 247,278. Reed, S. A. Nov. 11, 1924. Screw propellers.-In a machine for twisting the plates for aeronautical propellers made of a metal known under the Registered Trade Mark duralumin, the plate is held by two pairs of clamps spaced apart and connected together by a tube, which transmits the torque stress from one to the other pair of clamps. One pair of clamps 3 is secured to a tube 14 rotated by mechanical means reacting against the torque transmitting tube 1 in which the other pair of jaws 4 are fixed. The tube 1 rests on a bench 15 and carries a pair of connected yokes 17, 18 in which are mounted the shafts of pinions 20 in gear with a wheel 16 secured to the tube 14. The pinions are driven by spur gear 21 and worm gear 23 from a shaft 24 which is driven by spur gear 25 from an electric motor mounted on a shelf attached to the tube 1. The tube 1 may have pairs of guide bars so that the jaws 4 may be longitudinally adjusted therein to effect a progressive twist of varying ratio.
Patent GB-503412-A (GB)
Title: Improvements in or relating to the construction of open conduits and like trenches
IPC: E02D29/14
Filed: 1937-10-05
Abstract: 503,412. Service conduits in walls &c. BEYTS, L. S. Oct. 5, 1937, No. 26902. [Class 20 (ii)] Service conduits in walls, floors, &c. of the type adapted to be closed by a removable closure element supported on bearers on opposite sides of the conduit, have the bearers 10 supported and distanced by intermediate spacers 15 which are removed after the concrete has been cast about the bearers to form the conduit. The spacers 15 may be integral with the bearers, in which case they are broken away after the concrete has set. Keying means 14 are provided on the bearers to key them to the cast concrete 11. Seating surfaces 13 may be provided on the bearers to coact with similar seating surfaces on the closure 21, and ribs 16 on the bearers engage with corresponding recesses in the closure to prevent longitudinal movement of the closure sections.
Patent GB-279079-A (GB)
Title: Improvements in or relating to automatically operated liquid slip regulators for induction motors
IPC: H02P25/26
Filed: 1927-10-11
Abstract: 279,079. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Oct. 15, 1926, [Convention date]. Regulation, automatic; equalizing load on generator.-To increase its responsiveness a liquid resistance slip-regulator in the rotor circuit of an induction motor is operated by intermittent energization of the regulator motor at times when the desired motor current is practically attained or is exceeded, or a three-phase resistance, normally connected in parallel with the liquid resistance, is disconnected at such times. Both devices may be employed together and operated by one shunt circuit including in series the closing coils of electromagnetic switches 7, 9 controling a short-circuit on the regulator motor 5 and the three-phase resistance respectively. A relay 8 operated in accordance with the load current of the induction motor 2 causes these switches to open at the desired current value whereupon the regulator is operated at considerable torque and the rotor circuit resistance is immediately increased by reversing the parallel resistance.
Patent GB-503495-A (GB)
Title: Improvements in and relating to electric heating units
IPC: H05B3/42
Filed: 1937-10-05
Abstract: 503,495. Electric heating-resistances. BRITISH THOMSON-HOUSTON CO., Ltd., BRUNT, B. P., and SIMS, W. J. Oct. 5, 1937, No. 26952. [Class 39 (iii)] A flexible heating unit for use in ovens or furnaces or as an immersion heater comprises resistances 5 carried by insulators 1 making ball-and-socket joints one with another, by means of central hemispherical bosses 2 and recesses 3, and threaded on a flexible metal strip 4. The unit is mounted in a tube 15.
Patent GB-170294-A (GB)
Title: Aeroplane with one machine-gun rigidly mounted to fire rearwards, or several such machine-guns rigidly mounted parallel
IPC: B64D7/02
Filed: 1920-07-12
Abstract: 170,294. Rumpler-Werke Ges. Nov. 9, 1917, [Convention date]. Sights and methods of sighting.-One or more rearwardly-directed guns are fixed parallel to the fore-and-aft line of an aeroplane, and sighted by means of a mirror 7 and a fiducial mark so arranged that the forward field of view of the gunner pilot is not obstructed. In the construction shown, a single gun is mounted in a part-tubular recess formed in the aeroplane body 5 at the side of the pilot's seat 1.
Patent GB-362975-A (GB)
Title: Ferrous alloys
IPC: C22C38/38
Filed: 1930-09-11
Abstract: Iron alloys with enhanced strength and resistance to corrosion at elevated temperatures contain not less than about 16 per cent of chromium, about 6 per cent of manganese and substantially more than 1 per cent of molybdenum, the balance being principally iron. Preferably the alloy contains 16-22 per cent of chromium, 6-16 per cent of manganese, not more than 10 per cent of molybdenum, and less than 0,3 per cent of carbon.  Other elements such as nickel, aluminium, beryllium, cerium, cobalt, tungsten, vanadium may be present in small quantities.  Silicon and copper may also be present but in quantities not larger than 1,3 and 3 per cent respectively. The alloys are particularly suitable for the fabrication of tubes for the cracking of hydrocarbons. Specification 361,916 is referred to.
Patent GB-1468859-A (GB)
Title: Coating fabrics
IPC: D06M11/00
Filed: 1974-06-19
Abstract: 1468859 Electrodes for Pb-acid batteries IMPERIAL CHEMICAL INDUSTRIES Ltd 4 June 1975 [19 June 1974] 27118/75 Heading H1B [Also in Division C7] A method of producing a porous structure, suitable as electrodes in Pb/acid and Ni/Fe batteries, e.g. a fabric of polyester, polyolefin, polyamide or glass, which has a resistance of not more than 100 ohms per square comprises flame spraying metal of melting point below 1000‹ C., e.g. silver, 60/40 brass, aluminium, lead or zinc, in the form of particles having a size of 1 to 100 microns on to a fabric comprising fusible fibres, the fabric before spraying having a volume of fibre to volume of fabric ratio between 0À015 : 1 to 0À675 : 1, the nozzle of the gun being held 12À5 to 50 cm. from the fabric and the period of flame spraying being sufficient to produce a layer of metal at least 8 microns thick on at least one surface of the fabric. Woven, knitted or non-woven fabrics may be used and one or more metal layers may be applied.
Patent GB-260423-A (GB)
Title: Improvements in or relating to locking devices for electric incandescent lamps
IPC: H01R33/97
Filed: 1925-10-29
Abstract: 260,423. Francis, H. Oct. 29, 1925. Addition to 178,612. Holders.-The locking-ring described in the parent Specification for preventing the removal of intact bulbs, and which comprises two telescoping parts a, b' adapted to be lengthened but not shortened, is adapted to abut at the lower end against the bulb and at the upper end against the shadering b, or the shade itself, or the holder uniting ring c, thereby preventdng the holder from being dismantled.
Patent GB-460792-A (GB)
Title: Improvements in or relating to curtain rails
IPC: A47H1/06
Filed: 1935-10-03
Abstract: 460,792. Curtain supports. BREUER, K. Oct. 3, 1935, No. 27325. Convention date, Oct. 6, 1934. [Class 52 (v)] A curtain rail comprises a slotted tube 1 having a rail 2, for supporting the curtain runners 4, detachably secured therein by means of spring supports 3. The rail 2 may be secured to the supports 3 by bolts 15 or by tongues 16 pressed out of the members 3 or by other means, the members 3 being then compressed and passed through the slot whereupon they are allowed to expand and rest on the tube which may have the slot edges 8 beaded over to form supports. According to the Specification as open to inspection under Sect. 91, the rail supports 3 may have one side hinged to the remainder at 20 and may carry more than one rail 2. Alternatively, the rail supports 3 may be dispensed with, the rail being held by spring clips secured to the top of the tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-483051-A (GB)
Title: Improvements in the manufacture and production of ethyl chloride
IPC: C07C17/10
Filed: 1936-10-08
Abstract: Ethyl chloride is produced by chlorinating ethane in the gas phase between 400 and 700 DEG  C. within small catalyst zones and using a crystalline carbon, e.g. lustrous or graphitic carbon or graphite, as catalyst.  This may be in the form of a thin coating on carriers of good thermal conductivity, such as wire net which is folded or rolled to fit into the reaction chamber, or on the chamber wall itself.  The carriers and walls may be of metals such as platinum or silver or chromium-nickel alloys.  The coating may be effected by painting on a layer of tar oil, together with graphite powder if desired, and burning at 400-500 DEG  C.  If the ethane used contains higher hydrocarbons, lustrous carbon is formed during the reaction at above 400 DEG  C. and previous coating is unnecessary.  Cooling liquids, particularly metals or alloys, may be employed.  Mixtures containing up to 1 mol. of chlorine per 1 1/4 mols. of ethane may be led through the reaction chamber preheated to 300 DEG  C.  Temperature rises to 500-600 DEG  C. over a small length of the catalyst.  The reaction gases are washed to remove hydrogen chloride and the ethyl chloride dried and liquefied.  Some ethylidene and ethylene chlorides are also formed.  Indifferent gases or vapours may be present as in industrial gases containing ethane.  In an example, a chromium-nickel tube and wire net are coated with brown coal tar oil containing graphite and heated to give a film of carbon.  On heating to 300 DEG  C. and passing a mixture of ethane and chlorine, temperature rises to 570-600 DEG  C. with chlorination.
Patent GB-151636-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64C3/56
Filed: 1920-09-25
Abstract: 151,636. Tampier, R. J. C. Sept. 27, 1919, [Convention date], Void [Published under Sect. 91 of the Act]. Drawings to Specification. Planes, construction of and connecting to machine.-The planes of a biplane machine are adapted to be folded 'back for storage purposes, and the front and rear edges of the lower plane may be turned up about hinge lines on the front and rear spars respectively. This latter feature may be applied to any number of superposed planes. Where narrow planes are used, either the front or the rear edge only may be foldable.
Patent GB-769224-A (GB)
Title: Improvements in and relating to cleaning devices for threshing-machines
Inventor: LARSSON LARS
IPC: A01F12/44
Filed: 1954-09-22
Abstract: 769,224. Dressing-apparatus for thrashing- machines. AKTIEBOLAGET WESTERASMASKINER. Sept. 22, 1954, No. 27426/54. Class 58. The dressing-apparatus of a thrashing- machine, e.g. a combine harvester, comprises a blower for winnowing material being sieved by a sieving unit. The blower comprises two fans 10 and 11, Fig. 2, spaced well apart on a drive shaft 12. Each fan aspirates air axially from each side. The sieving unit comprises two sets of screens 4 and 5, Fig. 1, arranged beside each other and extending to or near the vertical planes through the longitudinal edges of the straw rack 3. A partition 8, preferably with a tapering upper edge extending above the sets of screens, may be provided between them and may form a guide for the inner edges of the screens. Each set of screens may consist of an upper " froth " screen 6 and two " blast " screens 7.
Patent GB-1207299-A (GB)
Title: An ignition system for a rotary internal combustion engine
IPC: F02B53/12
Filed: 1969-05-30
Abstract: 1,207,299. Ignition systems for rotary piston engines; timing ignition. TOYO KOGYO CO. Ltd. May 30, 1969 [June 3, 1968], No.27584/69. Headings F1B and F1F. An ignition system for use with a rotary piston internal-combustion engine of the type comprising two ignition plugs 16, 17 arranged to co-operate with a single combustion chamber 18, includes two distributer means 21, 22 for supplying ignition current to the two ignition plugs respectively in response to rotation of the engine, means 23 for detecting low speed operation of the engine and means 24 for detecting low load operating conditions of the engine. The detecting means is so connected to the ignition system that under both low speed and low load conditions of operation the ignition timing of one of the distributer means is retarded relatively to the ignition timing of the other.
Patent GB-359650-A (GB)
Title: Improvements in or relating to modulated carrier transmitters
IPC: H03F1/33
Filed: 1930-09-16
Abstract: 359,650. Wireless transmitting systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Sept. 16, 1930, No. 27657. Convention date, Oct. 9, 1929. [Class 40 (v).] In order to permit cf modulation of a radio transmitter up to 100 per cent without distortion, the microphone voltage is distorted prior to its application to the modulator valve in such a way as to neutralize the distortion due to the non- linearity of the curve relating high-frequency output to modulation input, Fig. 1 shows the system applied to a grid-current modulator, the modulating- valve II being connected across a condenser in the grid circuit of the high-frequency amplifier III. The microphonic voltage rl is applied across grid and filament of a valve I which has a resistance R in its plate circuit. The voltage applied to the grid of the modulator II is the of the voltage across R and a fraction of the input voltage el determined by the tap b. The valve I has its grid so biased by a battery Eg that negative and small positive input voltages do not cause plate current to flow through R. With increasing positive input voltage, a current flows through R, and the voltage so induced is added to that obtained directly from the input. This compensates for a modulation curve which flattens out at high positive input voltages. If the modulation curve also flattens out at the bottom of its slope, a pair of valves may be arranged as shown in Fig. 6, with the microphonic voltage el applied in phase opposition to the grids by a centre-tapped potentiometer. A resistance R connected between the two filaments lies in the plate circuits of both valves. Voltage is applied to the modulator valve from the terminals T. The system may be employed in choke modulation circuits.