baber/WOPTO huggingface dataset:
Patent GB-242334-A (GB)
Title: Improvements in or relating to illuminated advertising devices
IPC: G09F19/18
Filed: 1924-08-01
Abstract: 242,334. Fisher, S., and Fitzgerald, W. E. F. Aug. 1, 1924. Reel and non-endless web apparatus; opticalprojection apparatus, applications of; reel and endless web apparatus; elements moving always in one plane, rotating.-In apparatus comprising a continuously moving strip, bearing words, pictures &c., passing between a source of light and a screen, a light condenser is interposed between the lamp and the strip and a lens between the strip and the screen so as to illuminate the translucent screen by optical projection, and means is provided for automatically reversing the strip. The reversing means may comprise two bent arms 46, 48 pivoted at 41, 42 and carrying rolls 47, 49 which bear, under pressure from a connecting spring 45, on the wound-up strip 21. Extensions 43, 44 of the arms 46, 48 abut in turn against a slidable bar 50, which pushes over a lever 53 pivoted at 53<A>, a spring 66 producing a snap action. The lower end of this lever slides an incline bar 51 which actuates clutch levers 59, 60, putting one of the strip reels 22, 23 into engagement with its driving belt 64, 36, and throwing out the other. The reels 22, 23 are spring-connected to their shafts to prevent overstrain of the strip. The strip is travelled backwards at a higher speed than when displaying, the light being obscured or extinguished during the backward movement. The speed of displaying the strip 21 may be made uniform by introducing into the motor circuit a variable resistance controlled by the extension 44, or by a friction brake. An alternative method of reversing the strip consists of motor relays switched in by one of the levers 43, 44, 53. A colour disc or band may be introduced between the lamp and the screen. The screen may be of ground glass set with hemispherical projections or depressions, or of transparent glass having parts covered with opaque material, or of perforated metal set with lenses.
Patent GB-141585-A (GB)
Title: Improvements in inflators for pneumatic tyres and the like
IPC: F04B33/00
Filed: 1919-07-25
Abstract: 141,585. Law, J. W. July 25, 1919. Actuating pumps by hand or foot power.-To dispense with the toggle arrangement that is sometimes used for effecting relative movement of the piston and cylinder in pumps primarily intended for inflating pneumatic tyres, but applicable also for exhaustion purposes, the cylinder A, Fig. 1, is moved over the fixed piston and pistonrod B by the depression of the curved lever C acting against the roller D. The air under pressure is passed through the hollow rod to the outlet b. Return of the parts is secured by a spring. In the modification, Fig. 4, the cylinder is shown as stationary and the piston and rod movable, guide-rollers a.' within the frame E being provided. In further modifications, the curved lever may be pivoted to the frame and actuate the piston or cylinder by engaging rollers mounted thereon.
Patent GB-1109974-A (GB)
Title: Reluctance motors
IPC: H02K19/14
Filed: 1966-04-27
Abstract: 1,109,974. A.C. motors; core constructions. SIEMENS-SCHUCKERTWERKE A.G. 27 April, 1966 [30 April, 1965], No. 18558/66. Heading H2A. A reluctance motor has a laminated rotor with a preferred magnetic direction, the laminations, which are transverse, having been made from a sheet material which itself has a direction in its plane in which the permeability is a maximum to provide the preferred direction in the rotor. High grade silicon-containing iron sheet may be used: the permeability is different at different angles to the rolling direction of the sheet. Grain-oriented siliconiron sheets having a boss or cube structure are preferred. Stampings of the symmetrical form used for normal asynchronous squirrel-cage rotors may be employed without any subsequent working.
Patent GB-465446-A (GB)
Title: Improvements in or relating to lathes
IPC: B23B3/06
Filed: 1936-07-06
Abstract: 465,446. Lathes. HOPPE, F. E. O. July 6, 1936, No. 18772. Convention date, Aug. 8, 1935. [Class 83 (iii)] A lathe having a headstock arranged in a rigid frame and a tailstock 6 suspended from and displaceable along an upper beam of the rigid frame is characterized in that the support 7 for the tool-slide 10 is centrally arranged and vertically adjustable in the rigid frame in such manner that the feed of the tool S takes place from below towards the lowest point of the work and radially of the latter. The headstock is integral with the bed 1 and a pillar 3 connects the latter with the overarm 5 to form a rigid frame. The saddle 7 carrying the toolslide 10 slides vertically between a guideway on the main upright forming the headstock and the pillar 3. The tool-slide 10 may be traversed mechanically or by fluid-pressure means and may carry a tool-turret arranged on a horizontal axis. The guideway 7a for the tool slide slopes downward towards the rear and a removable bin 14 is provided for the ready removal of cuttings. A template may be provided on the tool-slide to control a valve for supplying pressure liquid to a cylinder and piston provided in place of the screw 8 for feeding the saddle 7 towards the work.
Patent GB-899287-A (GB)
Title: Method and apparatus for heat treating fusible material
Inventor: STERLING HENLEY FRANK
IPC: F27B3/08
Filed: 1958-06-12
Abstract: <PICT:0899287/III/1> In a method of heat-treating, e.g. zonerefining, a fusible material, e.g. silicon, germanium, titanium or nickel, the material is placed in one or more crucibles cooled by circulating fluid, and a direct or low-frequency alternating current is passed through the material between two crucibles, or between a crucible and an auxiliary electrode, each of which is in contact with the fusible material.  The crucibles and electrode are of material having thermal and electrical conductivities not less than those of aluminium.  As shown, a silver electrode 15, cooled by circulating fluid, is movably mounted above a hollow, silver crucible 10 containing silicon 13.  In a further arrangement, a series of U-shaped crucibles are separated by gaps wide enough to prevent arcing but narrow enough for surface tension to prevent spillage of molten material.  These crucibles may be used in conjunction with one or more electrodes 15 or alternate crucibles may be arranged to be connected to one terminal of the supply voltage and the remainder to the other terminal, so that a silicon rod may be zone-melted by connecting up adjacent crucibles in turn.  Specification 827,676 is referred to.
Patent GB-1023516-A (GB)
Title: Improved method and apparatus for the continuous treatment of fabrics
IPC: D06B3/10
Filed: 1963-05-13
Abstract: 1,023,516. Textile treating apparatus. WERNER STOCKHAUSEN [trading as MINHORST & SCHULTES]. May 13, 1963, No. 18915/63. Heading D1L. Apparatus for continuously treating fabric in long webs in liquid treatment media comprises a crushing unit which consists of at least two superimposed vertically movable rolls and is disposed on one wall of a liquid treating tank, and guide rollers for the web near the wall situated opposite the wall containing the crushing rolls. In the arrangement shown web 3 is led into tank 1 over the uppermost of four crushing rolls 2 and then passes through the three crushing gaps between the rolls. After the web leaves the bottom roll 2 it is guided around the outer pair of guide rolls 4 and back to the top crushing gap between rolls 2 via temple 5 for holding the fabric to its full width. The web is repeatedly fed from the bottom roll 2 to the first gap between rolls 2 by way of additional rolls 4 until the last pair but one is occupied. The fabric is then led out of the tank via reversing roll 6 and is taken up by roll 8. The latter may be driven through at a peripheral speed slightly greater than that of rolls 2 so as to maintain the web in tension and there may be a slipping clutch in the drive to prevent over tensioning.
Patent GB-713265-A (GB)
Title: Improvements relating to combustion equipment for gas turbine engines
Inventor: LOVESEY ALFRED CYRIL
IPC: F23R3/24
Filed: 1951-08-10
Abstract: 713,265. Jet propulsion plant. ROLLS-ROYCE, Ltd. Aug. 1, 1952 [Aug. 10, 1951], No. 18934/51. Class 110(3) [Also in Group XII] In combustion equipment for a gas turbine engine in which combustion is maintained in a high velocity hot gas stream, for example reheat equipment between stages of a gas turbine plant or reheat equipment of a gas turbine jet propulsion engine, there is provided a flame stabilizing device which has means for injecting a jet or jets of air or combustion, gas into the gas stream transversely to the direction of flow of the gas stream. A stagnant or turbulent combustion zone is established on the downstream side of the jet which assists in the maintenance of combustion of fuel injected into the gas stream upstream of the jet. The tail pipe of a gas turbine jet propulsion unit is shown in Fig. 2 and reheat fuel is supplied through holes 18a in the radial arms 18, mounted on the central boss 19 to which fuel is supplied through the pipe 20. Fuel is also supplied through the pipe 21 to the pilot tuel injectors 24 mounted within the conical baffle 25. and 27. The flame stabilizer comprises one or more annular tubular members 28 having slots 31 disposed circumferentially therein, air under pressure being led through hollow struts 29, for example from the compressor of the unit. The air issues through the slots at approximately the speed of sound and has the effect of increasing the effective area of the flame stabilizing means in a plane at right angles to the jet pipe axis. The slots in the stabilizing means may be inclined to the jet pipe axis. In a second embodiment, Fig. 6, reheat fuel is supplied through the nozzles 36a in the pipes 36 disposed radially on the cone 14 and pilot fuel is supplied to the injector 34 mounted within the shroud 35. The flame stabilizer comprizes a number of semi-circular annular baffles 40 carried on supports 41 mounted on the cone 14. Air under pressure is led through the pipe 44 to a chamber 42 formed within the cone 14 and issues through the apertures 45 to form an air baffle. The air forming the air jets may be pre-heated in a heat exchanger located within the main combustion equipment or in the exhaust gases from the turbine. In Fig. 7. the flame stabilizing means is combined with the pilot flame arrangement. The pilot fuel injector 24 is disposed in a flame tube 47 within the conical baffle 25, the downstream end of the baffle being closed by a plate 46, and the outlet from the baffle being a series of circumferentially-spaced slots 49. Air under pressure is led through the conduit 48 and combustion gases issue through the slots transversely to the exhaust gases flowing through the pipe 15. The air under pressure is supplied only when the reheat equipment is in operation. Specifications 628,366 and 667,394 are referred to.
Patent GB-1141503-A (GB)
Title: Semi-conductor devices
Inventor: WILKINSON ERNEST LINCOLN GEORG
IPC: H01L23/48
Filed: 1965-05-05
Abstract: 1,141,503. Semi-conductor devices. ENGLISH ELECTRIC CO. Ltd. 3 May, 1966 [5 May, 1965], No. 18960/65. Heading H1K In a semi-conductor device to which contact is made by a pressurized non-bonded terminal, powdered metal is interposed between the semiconductor and the terminal. Suitable metals are copper, silver and gold. The powder may be the only intermediary between the terminal and the semi-conductor, but it is also possible to place the powder between the terminal and a solid electrode contact to the semi-conductor. In Fig. 1 a base plate 13 has a depression 20 containing the powder; a PN junction diode 10 sandwiched between solid electrodes 11, 12 rests on the powder 20; and a cup-shaped terminal containing more powder 19 fits on the upper electrode 12 and has a projecting stem 14 surrounded by a spring 18. The stem projects through, and the spring is held by, an insulating cover 16 which is secured to the baseplate 13 to complete an enclosed housing. This may be sealed and either evacuated or filled with inert gas. Fig. 2 (not shown) depicts a simple terminalpowder-diode-powder-terminal unenclosed diode and Fig. 3 (not shown) a three-terminal PNPN device in which a contact according to the invention is also applied to one of the inner zones. In both these arrangements the powder is prevented from escaping by a surrounding mass of silicone elastomer.
Patent GB-530731-A (GB)
Title: Improvements in jiggers
IPC: D06B3/32
Filed: 1939-06-29
Abstract: 530,731. Dyeing-apparatus. ERICSSON, T. June 29, 1939, No. 18972. [Class 15 (i)] A jigger machine for dyeing or otherwise treating fabrics by passing the fabric to and fro through a vat 1 between two draw rollers 4, 5 which are driven first in one direction and then in the other is provided with a separate batching roller 6 on which the fabric is wound when the liquid is to be changed, which roller 6 is driven by contact with the draw roller 5 and is provided with a lifting device 21, 22, 23 operable by hand through worm gearing or by a motor so that it may be lifted and supported out of contact with the roller 5 when the batching is completed and is furthermore provided with a braking device to permit re-winding of the fabric on the draw roller 4 for further treatment with the new liquid. There is also provided a squeezing roller 8 driven by contact with the roller 5 and resting in brackets 10 adapted to be raised and lowered by a motor or by manual means 18, 19, 20 through rack 13 and gearing 14 . . . 17 and provided with a braking device so that it may be used for batching the fabric during the change of liquid if necessary. Different vat liquids from different liquid reservoirs can be admitted through supply pipes 36 ... 38 and valves 41 ... 43 and passed to the vat through pipe 39,pump 40 and inlet 33 and returned from the vat via outlet 34 and valve 44, the various valve spindles and driving motors 47 ... 49 being under distant control by press buttons on a switch board. The machine may be arranged for simultaneous treatment of at least three fabric widths adjacent one another.
Patent GB-722148-A (GB)
Title: Improvements in or relating to magnifying devices for slide rule cursors
Inventor: PRYER WALTER THOMAS
IPC: G06G1/06
Filed: 1952-07-28
Abstract: 722,148. Magnifying devices. HALL HARDING, Ltd. July 3, 1963 [July 28,1952],No. 19040/52. Class 97 (1). [Also in Group XIX] To allow a magnifying lens to be readily clipped to the cursor of a slide-rule the lens is shaped in its lower face to form a channel into which the cursor will fit. As shown, a hemispherical lens 11 has end portions 12 moulded integrally therewith or cemented thereto to form a recess receiving the cursor 14 and its transparent window 16.
Patent GB-479002-A (GB)
Title: Selector for electric connecting systems
IPC: H01H67/06
Filed: 1937-07-08
Abstract: 479,002. Automatic exchange switches. R1CHTER, M. B. July 8, 1937, No. 19053. [Class 40 (iv)] In a power-driven rotary switch in which the line wipers are withdrawn from the bank whilst the clutch magnet is energized, the switch is stopped and held in a set position by a multi-toothed pawl controlled by the armature of the clutch magnet and engaging a ratchet wheel which is mounted on the wiper-carriage and has a diameter substantially equal to that of the path of the wiper-tips. In the switch shown, the wipercarriage 5 and a power-driven drum 1 are separately mounted on ball-bearings on a common fixed shaft 4. The clutch magnet 24 is fixed outside the terminal bank' and its armature 23 pivoted at 28 is linked to a rod 29 passing through the shaft 4 and carrying at its upper end a cross-bar 30 with diametricallyopposite pins 31 engaging linked pivoted levers 32, 33 on the wiper carriage. On energization of the clutch magnet, the armature 23 first withdraws the locking pawl 18 from the ratchet wheel 17 by means of a two-a.rmed lever 21 and then through the rod 29 and pins 31 depresses levers 32, 33 to force sliding clutch-members 36 into engagement with the inner surface of the drum 1. At the same time, levers 9 cause the insulating plates 7 on which the wipers 6 are resiliently mounted to slide inwardly on the carriage 5 to withdraw the wipers from the bank during rotation. The wipers make only bridging contacts between pairs of fixed contacts 12. A hook 53 may be provided on the lever 21 to prevent the armature moving sufficiently to permit the wipers to move between two adjacent pairs of terminals if the teeth of the pawl 18 do not engage with the bottom of the teeth in the ratchet wheel. Specification 473,557 is referred to.
Patent GB-459178-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N3/34
Filed: 1935-07-04
Abstract: 459,178. Television. WILSON, J. C., 24, Whitworth Park Mansions, Moss Lane East, Manchester, and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. July 4, 1935, No. 19122. [Class 40 (iii)] Relates to television and like systems of the kind in which the scanning is effected in groups of substantially straight lines, the direction and sense of traversal being the same within a group, but the direction of the lines in successive groups varying, e.g. cutting each other orthogonally. According to the invention, the scanning beam has imposed upon it in one direction, e.g. vertically, an oscillating movement of saw-toothed form and in another direction, e.g. horizontally, an equiperiodic oscillating movement, i.e. of triangular form. The invention is preferably employed in conjunction with systems embodying cathoderay tubes, but may be used in mirror systems, or combined systems. In the result, an area, e.g. AB is scanned in a series of lines such as 1 ... 7 lying mutually at right-angles, the quick-return movements occurring along the lines R1 ... R6. In practice the periodicities would be chosen, e.g. at 179 and 180 per sec., to give a greater number of scanning lines than that shown in the Figure. Specifications 5031/97, [Class 40], 289,307, [Class 40 (iii)], 374,564, and 428,557 are referred to.
Patent GB-656272-A (GB)
Title: Improvements in or relating to positioning devices for machine tool elements or the like
IPC: G05B19/46
Filed: 1948-07-16
Abstract: 656,272. Feed and stop mechanisms. CINCINNATI MILLING MACHINE CO. July 16, 1948, No. 19135. Convention date, July 31, 1947. [Class 83 (iii)] Positioning means for two relatively-movable elements 10, 11 of a machine tool comprises a piston 15 and cylinder 16, a valve 30 controlled by a disengageable screw-and-nut mechanism 31, 39 and trip-operated hydraulic means for simultaneously disengaging the screw-and-nut mechanism and operating a clamp for holding the valve against movement. A tool head 11 is movable on ways 12 relative to a bed or table 10 by means of the piston and cylinder 15, 16 and the valve 30 is secured to the feed control screw 31. The screw is rotatable through clutches 56 and 49 by either a hand wheel 55 or by a motor 54 and is engaged by the half-nut 39; spring-loaded hydraulic plungers 60 and 38 control, respectively, the clutch 49 and the halfnut 39. An indexable and longitudinally adjustable drum 76 on the bed 10 has a number of adjustable trip dogs which can engage selectively with a lever 73 linked to a spring- loaded valve 66 and to a yoke lever 83 for shifting the feed control screw axially. Operation.-During feed of the tool head, the valve 30 is constantly re-set by the rotating screw in engagement with its half-nut and maintains the feed constant until the lever 73 engages one of the trip dogs. The valve 66 is then pushed down and fluid is supplied to the plungers 38 and 60, thus withdrawing the halfnut and disconnecting the drive to the screw. At the same time, pressure is supplied to a clamp plunger 72, which moves upwards and holds the lever 83 against the head of lever 79, thus fixing the screw 31 and valve 30 in a position where there is hydraulic balance on both sides of piston 15 and locking the parts 10 and 11 against further movement. Further movement may be initiated simply by indexing the drum to the next position or a handle 84 on the lever 83 may be rotated counterclockwise to reverse the table slightly and then moved to a stop position while the drum is indexed.
Patent GB-423419-A (GB)
Title: Improvements in or relating to the manufacture of ampullae
IPC: C03B23/11
Filed: 1934-06-28
Abstract: 423,419. Glass manufacture. DICHTER, J., 8, Hauptstrasse, Sch÷neberg, Berlin. June 28, 1934, No. 19165. Convention date, June 30, 1933. Addition to 364,211. [Class 56] The machine described in the parent Specification, for making ampoules from glass tubing, is provided with a tool which is held against the softened glass, after the drawing of the stem, to shape the neck of the ampoule positively. The tool may consist of a roller 106 pivoted on a lever 107 which is mounted on an arm 111 supported by a carrier 105. The carrier 105 has a downward extension 103 which runs on a cam rail 118, and it is kept parallel with the glass tube by means of a pair of links 104 pivoted to the bracket 11 that supports the lower chuck 10. A nozzle 131 may be used as a gas burner or as an air jet to heat or cool the glass tube as required. The cam rail 118 is directly connected to a cam rail 71a which regulates the descent of the chuck when the heated glass tube is being drawn out to form the stem 140. The cam rail 118 swings the roller 106 into contact with the glass tube to shape the neck 159, Fig. 4, of the finished ampoule. Preferably, the roller 106 is provided with a ridge 121 to form a waist 158 on the neck of the ampoule. In a modified construction, the roller 106 does not move vertically in unison with the chuck 10, but the lever 107 is pivoted on a spider which rotates with the glass tube about the central column of the machine. The lever is moved horizontally by a cam secured to the central column.
Patent GB-177454-A (GB)
Title: Improvements in and relating to automatic fire arms
IPC: F41A3/64
Filed: 1921-07-18
Abstract: 177,454. Frommer, R. von. July 18, 1921. Breech actions, sliding breech-block.-Relates; to automatic pistols and other small-arms of the kind having a fixed barrel and a recoiling breechblock carried by a slide which surrounds the barrel. According to the invention, the breechblock is adapted to be inserted in the slide from the rear and to be secured b a cap fastened by a bayonet-joint. In the construction shown, the barrel 2 has lugs 3 fitting in grooves in the breech-frame 1 and is held down by the slide 5 which is guided on the frame by ribs and grooves. The breech-block 9 is inserted into the slide from the rear and is held by a cap 10 fitting over the rear end of the slide and fastened by a bayonetjoint. The cap is locked by the tail 15 of the extractor 13, Fig. 2. The cap 10 may be formed with a cowl 22, Fig. 12, enclosing the hammer. A sliding catch 17, Fig. 15, at the side of the frame is adapted to engage a recess 18 in the slide to hold it in its retracted position to facilitate disassembling. The catch is automatically operated by the cartridge lifter when the magazine is empty.