baber/WOPTO huggingface dataset:
Patent GB-260625-A (GB)
Title: Photo-mechanical intaglio printing
IPC: G03F5/24
Filed: 1926-10-30
Abstract: 260,625. Loening, E. Oct. 31, 1925,. [Convention date]. Photo-mechanical printing-surfaces.-For producing printing blocks comprising text and pictures by a single etching operation, a combined text and picture diapositive, for direct use, is prepared by making the picture diapositives on film material previously coloured with a non- actinic dye, cutting them out to shape, and mounting them on a transparent mounting plate; and printing the text matter on thin transparent material and similarly mounting it between the pictures. The Specification as open to inspection under Sect. 91 (3) (a) states that the films may alternatively be provided on the back with a sufficiently opaque retouching matt coating. This subject-matter does not appear in the Specification as accepted.
Patent GB-831668-A (GB)
Title: Electric circuit for high-speed spot welding
IPC: H05B7/11
Filed: 1957-08-29
Abstract: 831,668. Control systems for resistance welding. PRAEG, W. F. Aug. 29, 1957 [Aug. 30, 1956], No. 27273/57. Class 38 (4). Spot welding apparatus for producing a succession of welds such as is required when making an element having a honeycomb-like structure comprises a plurality of sets 1 ... 100 of welding electrodes all supplied from a common power supply 1000, each set of welding electrodes being supplied over a gaseous discharge tube and a transformer-for example, electrodes 1 are associated with discharge tube 401 and transformer 101-the discharge tubes 401 ... 500 being successively ignited by pulses from a control device 900 which causes pulses to be successively applied to the grids of the tubes 401 ... 500 by means of conductors 701 ... 800 respectively, commutating condensers 201 ... 300 being provided to ensure that as each discharge tube in the series ignites, the one previous in the series is extinguished. Means may be provided in order that the sequence may be repeated or terminated after one cycle thereof, as desired. The control device 900 may also control the duration of each weld by controlling the lengths of the pulses applied to the grids of the tubes 401 ... 500.
Patent GB-895780-A (GB)
Title: Improvements relating to the joining of non ferrous types of tubing
IPC: F16L13/007
Filed: 1958-08-26
Abstract: 895,780. Welding by pressure. HOWELL, S. Aug. 26, 1958 [Sept. 2, 1957], No. 27350/58. Class 83 (4). A method of joining or uniting two different types of non-ferrous tubing such as copper and aluminium tubes to form a tight joint comprises first preparing the end of the copper tube 8 to be joined by flaring such end to form a socket 7 for the reception of the end 5 of the aluminium tube 6, removing any oxidized film from the surfaces of the tubes to be brought together, bringing said tubes together into surface to surface contact, applying a combined torsional and end load to at least one of said tubes, applying heat to the engaged portions of said tubes to melt at least the outer surface of said aluminium tube to fuse said aluminium to said copper at a temperature below the melting temperature of said copper, and, while said surface of said aluminium tube is molten, rotating one of said tubes with respect to the other while under said end load until the required length of said aluminium tube has entered said copper tube, then removing the heat and allowing the joint to cool. The end pressure E and torsional load T are maintained during initial cooling until the molten aluminium solidifies. After cooling any displaced metal internally of the joint is removed and the exterior of the joint is also cleaned off as shown in Fig. 5.
Patent GB-184099-A (GB)
Title: A new or improved device for softening or loosening tarmacadam and the like
IPC: E01C19/18
Filed: 1921-10-15
Abstract: 184,099. Snodin, G. R. Oct. 15, 1921. Heating apparatus. - An implement for breaking up masses of tar-macadam with the aid of steam jets comprises a hollow rod 1 with a pointed end 3, the rod being connected by a flexible pipe 13 and cock 16 with a steam boiler. The rod has perforations 4, Fig. 3, adapted to direct the steam on to the material directly in front of the point, and lateral perforations 5 which direct the steam on to the material surrounding the rod as it is worked into the material by the handle 8. A heat-insulating sleeve 12 is provided adjacent to the handle.
Patent GB-318865-A (GB)
Title: Process for inhibiting or reducing the perishing of artificial and natural varieties of rubber
IPC: C08K5/13
Filed: 1929-09-09
Abstract: 318,865. I. G. Farbenindustrie Akt.- Ges. Sept. 10, 1928, [Convention date]. Indiarubber, preserving.-The perishing of natural or artificial rubber, in the vulcanized or unvulcanized state is reduced by the addition to the mix of an indane phenol (obtained as in Specification 297,075, [Class 2 (iii), Dyes &c.], or a substitution product or salt thereof. Indane phenols are non poisonous, and show no discolouration in sunlight, hence they may be used in light coloured articles. Examples :-2.2 parts by weight of resorcyl indane is added to a usual rubber mix containing 100 parts of smoked sheets, and the product vulcanized for 40 minutes at 140‹-150‹C.
Patent GB-855582-A (GB)
Title: Plungers for oil pumps or motors of the swash plate type
Inventor: SKINNER ROBERT THOMAS JOHN
IPC: F16N13/14
Filed: 1958-08-27
Abstract: 855,582. Swash plate pumps. LUCAS (INDUSTRIES) Ltd., J. Aug. 12, 1959 [Aug. 27, 1958], No. 27449/58. Class 102(1). [Also in Group XXIX] The piston a of a swash plate pump is hollow and closed at each end ; a tube e fitting in the ends conveys lubricant from the cylinder b to the slipper c. The piston may be made with a separate ball end b, as shown, or with a separate inner end or both.
Patent GB-1504817-A (GB)
Title: Printed circuit assembly
IPC: H05K7/14
Filed: 1976-07-01
Abstract: 1504817 Printed circuit assemblies INVENTIO AG 1 July 1976 [7 July 1975] 27471/76 Heading H1R An electrical assembly 1 comprises a printed circuit board 2 with terminals 3, 4 at both ends thereof soldered for electrical connection to the conductor paths, with a relay 5 disposed therebetween. A hood 6 of, e.g. resilient synthetic material covers the relay and is retained by cams 6.3 at the inner sides of its walls 6.1, 6.2 engaging recesses 5.1 of the relay yoke, which are disengageable by compression of the side walls. The assembly is mounted on an, e.g. metal carrier rail 7 engaged by mounting members 8, 9 having parallel slots 10, 11 therein engaging in-turned limbs 7.1, 7.2 of rail 7 for longitudinal displacement; the members 8, 9 being provided with other slots 12, 13 of their sides which engage opposed rectangular recesses of the printed circuit board. The members may be pressed together and clamped by screws to lock the printed circuit board to the rail and embrace the opposed side walls of the hood.
Patent GB-426141-A (GB)
Title: Means for staking plants, particularly those of a bulbous nature, growing in bowls and pots
IPC: A01G9/12
Filed: 1934-10-08
Abstract: 426,141. Treatment of growing plants. MARROW, M. S., West Barns House, Dunbar, East Lothian. Oct. 8, 1934, No. 27522/33. [Class 6 (ii)] Means for supporting plants growing in bowls and pots comprises a flat strip, preferably of rustless metal, part of which forms a flat base, while one or more other parts are bent into tubular shape and project at right-angles to the base to form stake-receiving legs. The device may comprise a flat base 6 and a tubular portion 5 at one end, Fig. 1, Alternatively, the device may comprise a U-shaped member having two tubes 5 and a connecting-base 7, Fig. 4. Three members of the form shown in Fig. 1 may be pivoted together at the extremities of their bases 6 ; or two or more U-shaped members may be pivoted together at their centres 9, Fig. 4. The base portions may be of unequal lengths so that they can be folded into the same plane. An additional member as shown in Fig. 1 may be placed at the centre of the device shown in Fig. 4.
Patent GB-629205-A (GB)
Title: Improvements in and relating to two-stroke cycle internal combustion engines
IPC: F02B75/12
Filed: 1947-10-15
Abstract: 629,205. Two-stroke engines. SOC. ANON. DES USINES CHAUSSON. Oct. 15, 1947, No. 27652. Convention date, Oct. 17, 1946. [Classes 7 (ii), 7 (iii) and 7 (vi)] Liquid fuel is continuously injected into a chamber 10 separated from the combustion chamber by a valve 11 which is opened early in the compression stroke and closed before ignition. Helical vanes 17 are arranged in the port so that the rich mixture formed in the chamber 10 is whirled as it enters the combustion chamber. The liquid fuel is supplied by a pump 34 and scavenging air to a piston-controlled port 8 by a blower 19 and conjoint control from a pedal 43 is provided by a linkage connecting an air throttle valve 22 and a liquid-fuel bypass needle valve 37. In a multicylinder engine a single pump 34 and a single blower 19 supply all the cylinders.
Patent GB-225218-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/04
Filed: 1924-11-19
Abstract: 225,218. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Nov. 20, 1923, [Convention date]. Low-pressure metallic-vapour apparatus.-A discharge tube filled with one or more electropositive gases is provided with a heated device for developing metal vapour which has, in the path of the discharge, such a density that the light radiated shows the spectrum of the vapour. In the construction shown in Fig. 1, a cathode 3, preferably coated with barium oxide or other electron-emitting oxide, is heated by current tapped from a potentiometer resistance 8 connected across a battery 7. The anode consists of a metal plate 5 having a central opening on which a grid 22 is placed. Metallic vapour is generated in a vessel 12 heated by nickelchromium or other wires 13, 14, which make metallic contact therewith. The vessel 12 may be of copper for generating sodium vapour, or of molybdenum for generating vapour requiring a higher temperature. The gas filling may be argon at a pressure of 1 mm. For illumination purposes, sodium or thallium may be used for generating vapour; spectra of other metals such as copper or tin may also be obtained. In the construction shown in Fig. 2, the vessel 30 containing the metal to be vaporized forms the anode. The cathode consists of a metal body 25 heated by a wire 26. Alternating current is employed, secondary windings 33, 34 of a transformer sunplying the heating-currents for the vessel 30 and cathode 25 respectively, and a tapped secondary winding 35 enabling the anode potential to be adjusted. A metal grid 37 surrounding the path of discharge prevents precipitation of the metal vapour on the wall of the vessel 24. In a modification, the grid 37 is replaced by a number of metal plates, in planes passing through the axis of discharge, attached at their upper ends to an annular plate. An independent glow discharge may be employed, in which case the metal vapour is preferably developed in the positive column. The discharge may have the character of a lowtension arc.
Patent GB-599955-A (GB)
Title: Levelling instrument
IPC: G02B27/64
Filed: 1945-10-22
Abstract: 599,955. Levels. COWLEY, K. Oct. 22, 1945, No. 27720. Convention date, Aug. 9, 1944. [Class 97 (ii)] In a levellinsg instrument of the gravitystabilized mirror type, two series of mirrors having respectively an odd and even number of mirrors 9, 10, 11 and 26, 27 are disposed at right angles to and on opposite sides of a central vertical plane common to both systems, extending through the eyepiece 6 and defined by upright strip 8. One of the systems contains the gravity-stabilized mirror 11 mounted on pendulum 15 supported on knife-edges whose pivotal axes are aligned with the reflecting surface of mirror 11 and are perpendicularly disposed to the central plane cutting this latter at P. The mirrors are so disposed as to give equal light paths in the two systems which produce images, e.g. of a sighting vane held perpendicularly to the central plane, inverted with respect to each other. These images appear in the two sections of the field of view as a continuous line when the centre of the vane is at the same level as the optical centre C of the instrument. This optical centre is in the central plane and is the image of P after reflection by the mirrors 10, 9 or 27, 26 in those orders. Damping means, e.g. an eddy-current brake 19, 21 is provided to damp the vibrations of the pendulum. Casing 1 is arranged for mounting on stand 32 and is engageable with and horizontally rotatable about post 36 whose axis passes through the fixed point C. Post 36 operates a spring-actuated lever 22 which, when unoperated, engages with pendulum 15 to retain this latter at rest, e.g. when the instrument is not in use.
Patent GB-985517-A (GB)
Title: Improvements in magnetic recording transducer heads
Inventor: BLAXTAN PETER WILLIAM
IPC: G11B5/187
Filed: 1961-08-01
Abstract: 985,517. Making magnetic heads. BANKBUSH MURPHY Ltd. Aug. 1, 1962 [Aug. 1, 1961], No. 27861/61. Heading B3A. [Also in Division G5] Ferrite rings 3, 4 shrouded in aluminium or brass, are mounted in a jig 7 and segmentally slotted by a cutter 8. Strips of hard, highpermeability material 13 are held in the slots in intimate low-reluctance contact with one side of the slot, 14 by epoxy resin 11 contacting the other side of the slot 15. An offset cut, Fig. 6, leaves a full semi-circular portion 19, which after grinding away at a small angle, Fig. 7, is paired with a similar portion 23, a copper flux-concentrating wedge 25 and a platinum foil gapspacer 26, the whole being held by epoxy resin. Cuts 34 slice individual heads 29, 30 from the stack which are then equipped with windings in known manner.
Patent GB-639874-A (GB)
Title: A device for the drying of grass
IPC: F26B17/10
Filed: 1947-10-17
Abstract: 639,874. Centrifugal machines. BROEK, W. VAN DEN. Oct. 17, 1947, No. 27866. Convention date, Aug. 22, 1945. [Class 23] [Also in Group XIII] Grass from a cutting machine 6 is entrained with hot air from a coke oven 1 and blown by a fan through a conduit 10, an extension of which is wound in superposed coils around a cyclone 16 to provide a long but compact drying path. Baffles may be provided in the coils and the drying is completed in the cyclone, the dried grass passing to a hammer mill 18 from which it is blown into a second cyclone 20 with a bagging spout.
Patent GB-259171-A (GB)
Title: An improved device for regulating the feed of the boilers of steam engines having a variable speed of revolution
IPC: F22D1/42
Filed: 1925-11-05
Abstract: 259,171. Muchka, J. Oct. 3, 1925, [Convention date]. Closure members.-In a locomotive or like boiler in order to throttle the supply of feed water supplied by a pump driven from the main engine as an when the regulator is closed, a lift valve 8 in the outlet from the feedsupply pump is connected to the operating rod of the steam regulator. A rotary valve 14 having radial ports 15 independently regulates the flow of water through ports in the lift valve, upon which it is mounted. The rotary valve may be directly operated by hand or may be connected to the rods actuating the valve gear. A pin 17 projecting from the rotary valve and engaging in a converging groove 18 maintains the valve in its closed position when the lift valve is closed. The rotary valve may be automatically operated by a piston or diaphragm device acted upon by the pressure in the boiler or in the steam chest or by the gas pressure in the smokebox.
Patent GB-1536829-A (GB)
Title: Calender roll
IPC: D06C15/08
Filed: 1977-07-04
Abstract: 1536829 Rollers BRUDERHAUS MASCHINEN GmbH 4 July 1977 [17 July 1976] 27894/77 Heading F2U A calender roll has a core 1 with a covering 2 comprising pressed-together rings of paper or other non-woven material containing basalt fibres. This material preferably contains no binder but in addition to the basalt fibres may contain inorganic or organic fibres, e.g. cellulose fibres. End rings 4 and nuts 5 have common frusto-conical surfaces 7, 14 substantially parallel to the flanks 13 of threads 12.
Patent GB-304807-A (GB)
Title: Improvements in portable folding cots
IPC: A47D9/00
Filed: 1927-10-20
Abstract: 304,807. Bennett, E. M. Oct. 20, 1927. Folding bedsteads.-A folding cot comprises two opposed members A, B, pivotally connected at their ends by rivets R and provided with sliding sleeves C, C' for maintaining alignment, together with legs D, D<1> held in position by struts .E, E<1>, slots being provided at both ends to receive straps whereby the cot may be suspended when it is not desired to use the legs. The fabric body F of the cot may be attached by tapes, buttons, press studs, hooks, &c., and a two-piece foldable mattress may be provided.
Patent GB-1396394-A (GB)
Title: Vehicle safety device
IPC: B60R21/02
Filed: 1972-06-14
Abstract: 1396394 Vehicle safety devices J MONAGHAN 14 June 1972 [16 July 1971 4 May 1972] 27907/72 Heading B7B A vehicular occupant restraint device, which may be used as an active or passive device, includes a resilient pad 2 carried by a support structure which includes a clutch 12 for releasably locking the pad position. The pad is carried by an arm 4 pivoted at 76 to a vertical arm 6 rotatably mounted on an arm 8. The arm 8 is rotatably mounted on a shaft 10 fixed to the vehicle and is capable of limited axial movement thereon, and rotatably mounts a shaft 54 which is pinned to arm 6 and carries a pinion 66. A chain 68 is trained over a pinion 64, rigid with shaft 10, and pinion 66, this arrangement keeping arm 6 vertical for all positions of arm 8. The shaft 10 also carries a fixed clutch housing 12 which is electromagnetically saturated and coacts with a plate 32 on a mounting boss 28 of arm 8 to immobilize the arm, and a spring 18 fixed at one end 19 and bearing against an abutment 24 on arm 8 to urge the latter rearwardly at the other. For use as a passive restraint device arm 4 is moved to a horizontal position, the position of arm 8 adjusted, and the clutch actuated by switch 81 and lever 82 to lock the arm 8. Switch 81 (Fig. 9, not shown) only allows actuation of the clutch when arm 4 is in the operative position and deactuation when the arm 4 is vertical. The electromagnetic clutch may be replaced by a manual clutch (Fig. 3A, not shown) for use as an active restraint device (Figs. 4A, 10, not shown) the end 19 of spring 18 is connected to a sleeve rotatably mounted on shaft 10, the sleeve being rotatable by a pneumatic piston-cylinder motor supplied via a control valve with compressed air. The air supply and a switch for deactivating the clutch are connected to accident sensors so that on collision the clutch is deactivated and the motor driven to rotate the sleeve and thus increase the spring tension. This results in arm 8 being urged rearwardly to restrain the vehicle occupant. In a further embodiment (Figs. 4B, 10A, not shown) rapid and clean clutch disengagement is ensured by directing compressed air between the clutch plates on clutch deactuation, the air being supplied from the motor source or a separate source. Alternatively a spring may be placed between the clutch plates for this purpose.
Patent GB-318406-A (GB)
Title: Improvements in rotary milling cutters and like tools
IPC: B23D61/06
Filed: 1928-09-29
Abstract: 318,406. Walker & Sons (Birming- ham), Ltd., G., and Walker, R. P. Sept. 29, 1928. Milling-cutters.-In inserted blade milling- cutters and like rotary tools the blades a are of substantially rectangular tapered form and are held in tapered slots b in the body c by wedge action. Lateral movement is prevented by semicircular ribs e on one of the faces of the blades engaging similar recesses d in the body, and a number of paralled recesses may be provided in each slot so that a blade may be engaged selectively with any recess in order to provide adjustment for wear of the blade or for increasing the width of the cutter, as shown in Fig. 6. The blades are slightly greater in length than the slots b and are approximately twice the width of the body c. The lower ends of the blades are bevelled at a<1> to facilitate extraction with the aid of a wedge &c. According to the provisional Specification lateral movement of the blades is prevented by shallow rectangular recesses on the backs of the blades, increasing in depth towards the base and forming shoulders which engage opposite faces of the body. Reference has been directed by the Comptroller to Specifications 21297/13, 129,580, 185,298, 226,614 and 304,117.
Patent GB-1002596-A (GB)
Title: Silent high speed air turbines
IPC: A61C1/05
Filed: 1962-07-20
Abstract: 1,002,596. High speed air turbines. A. LUCIEN, L. BRUNEL, and R. M. MERCIER. July 20, 1962 [July 22, 1961; Jan. 29, 1962], No. 28023/62. Heading F1T. An air turbine in which supersonic frequencies produce audible beat frequencies has means whereby the casing, feed nozzles, turbine wheel and outlet ports or passages are designed in such a way as to eliminate at least one of the supersonic frequencies. Two nozzles may be disposed with one nozzle displaced by one half of the blade pitch from a diametral location or diametrically disposed nozzles may act upon a rotor having an odd number of blades. A single nozzle may act upon two axially adjoining rotors, rotatively displaced relative to each other by half of the blade pitch and separated by a disc of diameter equal to that of the blading. In this embodiment the blades may be helical to reduce the speed of the exhaust air laterally. In a further embodiment (Fig. 5) the air exhausts from the turbine into axially disposed chambers 27, 28 thereby eliminating the supersonic wave caused by the blades passing an exhaust port.
Patent GB-426734-A (GB)
Title: A new method of constructing the roofs of animal and plant housings, applicable also to dwelling-houses and other buildings
IPC: E04B7/16
Filed: 1933-10-11
Abstract: 426,734. Glasshouses, stables, &c. MUSGRAVE, J. L., 43, Bloomsbury Square, FOWLER, L. J., 7, Hilltop Court, Grange Road, Norwood, and CRITTALL & CO., Ltd., R., 43, Bloomsbury Square, both in London. Oct. 11, 1933, No. 28032. [Class 20 (i)] The roofs of glasshouses, aerial shelters, cow houses, or human habitations, are serrated with the inclinations of the two sides of each tooth relatively adjustable, so that one side can always be at right-angles to the path of the sun's rays at noon at any time of the year. The sides D of the roof portions are hinged at d<1> to uprights, and the upper ends are adjustably supported on the sides of the frames A which are hinged at a<1> to uprights B. The upper-ends of the sides D may be adjusted by means of screws and hand-gears in relation to the sides of the frames A, which are glass-covered and may be protected by a roll-up canvas covering a<2>. Gutters E are disposed between adjacent teeth. The glass coverings for the frames A may be hinged to separate frames F, Fig. 5, and be capable of adjustment inwardly by means of screws f<2> and hand-gear f <3>, or, alternatively, the glass covering may be in the form of louvres capable of being. opened and closed by hand-levers.