baber/WOPTO huggingface dataset:
Patent GB-1151211-A (GB)
Title: Improvements in or relating to Optical Projection Image producing apparatus
Inventor: MARKHAM WILLIAM CHARLES
IPC: G03G15/28
Filed: 1965-02-02
Abstract: 1,151,211. Image projection apparatus. W. C. MARKHAM. May 2, 1966 [Feb. 2, 1965], No.4416/65. Headings G2A and G2H. Optical projection apparatus comprises means defining object and image planes and a scanning assembly which upon movement projects successive elemental areas of an object at the object plane on to an image receiving medium held stationary at the image plane to form a complete image of the object on the medium. In one form of scanning assembly 3, mirrors 5, 6, Fig. 2, are arranged between ducts 9, 10 opposite a lens 7 backed by a plane mirror 8. The scanning assembly 3 is driven by endless motor driven cables (38, Fig. 10, not shown) along a path between a glass platen 1 Fig. 1 and the photo-sensitive medium (not shown). The object may be illuminated by a quartz iodine lamp Figs. 8 and 9 (not shown) stationary or moved with the scanning assembly. The assembly 3 may carry a corona discharge device, e.g. a spiked roller for laying down a sensitizing charge, apparatus for developing a latent image photographically or electro-photographically, or a device for fixing developed image. The scanning assembly may oscillate along an arcuate path to produce reduced or magnified images Figs. 11 and 12 (not shown).
Patent GB-1197372-A (GB)
Title: Photoelectric Surfaces and Methods for their Production
IPC: H01J1/34
Filed: 1968-01-29
Abstract: 1,197,372. Cathode materials and processing. ELECTRO-MECHANICAL RESEARCH Inc. 29 Jan., 1968 [3 Feb., 1967], No. 4461/68. Heading H1D. [Also in Division C7] A photocathode is made by vapour-depositing sodium on to a supported layer of antimony or antimony containing potassium until the photoemissive sensitivity increases to a peak and then decreases, successively vapour-depositing potassium and rubidium in turn a number of times, and then vapour-depositing cesium thereon. Preferably each deposition of potassium or rubidium is immediately followed by a deposition of antimony. As shown, the photocathode 16 of photomultiplier tube 1 is formed by heating the tube in a furnace 17 and evaporating K, Na, Cs and Rb from respective supplies in bulbs 10 depending from a stem 8 extending from the tube, and the Sb is evaporated from a supply 13 in a separate stem 9 which also accommodates exhaust tubulation 15. Supply bulbs 10 contain alkali metal chromate, powdered A1 and powdered W, e.g. in ratio 1:1:6 by weight respectively, and thermal reduction at 625- 825 C. for Na, 600-800 C. for K and Rb, and at 600-750 C. for Cs produces the respective alkali metal vapour. Sb vapour is provided by heating the pure metal at 450-550 C. The initial co-deposition of Sb and K on to a substrate heated to 150-175 C. continues until sensitivity is optimized and Na is then deposited whilst maintaining substrate and layer at 200-215 C. until sensitivity reaches a peak and then drops to about 0À5 microamps/lumen. Successive depositions of K, Sb, Rb and Sb whilst maintaining the substrate and layer at 150-175 C. are repeated 6-20 times, the sensitivity increasing to a peak on the introduction of each alkali metal and then decreasing to 25--50% of that peak as the Sb is deposited. Finally, Cs and Sb, either successively or together, are deposited with the substrate held at 140-160 C. until sensitivity reaches a maximum of e.g. 350 microamps/lumen. The substrate materials may be glass with or without and A1 coating, A1, Cr, Cu, Ni, lithium fluoride, magnesiumfluoride, fused silica, quartz or sapphire. Electron multipliers.-The multiplier phototube 1 has a cylindrical envelope comprising a number of metal rings 3 separated by short cylindrical glass rings 4 with glass end closures 2 and 5, and contains a number of "Venetian blind" dynodes 19 each connected to a different ring 3 and each having a curved field shaping screen 20. The ring 3 next to end closure 2 is connected to the last dynode 19a and the adjacent ring 3 is connected to anode 21. The last ring 3 at the other end is connected via metallic coating 22 to photocathode 16 and the adjacent ring 3 is connected to a focus electrode 23 in addition to the first dynode.
Patent GB-137652-A (GB)
Title: An improved electric iron
IPC: D06F75/26
Filed: 1919-02-22
Abstract: 137,652. Bruce, R. F., and Portholme Aircraft Co. Feb. 22, 1919. Electric hand-irons are provided with a number of heating-elements and a switch to throw them into and out of circuit as desired. Three heating-elements are placed side by side between mica sheets and overlaid by asbestos and a clamping-plate l. The cover of the iron and the plate l are secured in position by bolts b, c and nuts, and spring contacts o are provided to connect up the elements with one of the terminals n and a switch s arranged in a recess in the upper portion r of the handle.
Patent GB-110151-A (GB)
Title: Improvements in and relating to Steam Generators.
IPC: F22B37/10
Filed: 1917-03-30
Abstract: 110,151. General Engineering Co., (Assignees of Doble, A.). Sept. 23, 1916, [Convention date]. Water-tube boilers.-In a steam-boiler comprising elements consisting of tubes 4<a> connected to upper and lower headers 5, 6, which are detachably connected to inlet and outlet collectors 11, 10 outside the casing, the upper headers are of greater diameter than the tubes so as to form flue spaces between the elements. The top and the two side walls of the casing are removable. The hot gases from a burner H are directed towards the top of the casing by a. transverse baffle 4 and escape through a flue 30 at the bottom. The elements behind the baffle serve as a feedheater. The water passes upwards through the feed-heating tubes from the lower collector 13 to the upper collector 12, and then flows through a pipe 26 into the lower collector 11 of the evaporator units. Steam is led off from the collector 10. Each element is connected to a collector by a screw coupling 19, Fig. 4, adapted to clamp the flared end 22 of a tube section 20 between the conical end 21 of the turned down part 17 of a header and a corresponding seating in the coupling. The ends of the tubes are contracted, as shown, and are welded to their headers, welding metal being run in around the edging of the ends, which abut against the headers. Specification 110,150, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], is referred to.
Patent GB-473818-A (GB)
Title: Improvements in valves for brass wind instruments
IPC: G10D9/04
Filed: 1937-02-16
Abstract: 473,818. Brass wind instruments. WORNELL, C. N. M. Feb. 16, 1937, No. 4655. [Class 88 (ii)] The finger-piece 6 of a piston-valve in a brass wind instrument has a skirt 9 which telescopes within or around a socket 10 secured to the casing. The return spring 8 may be contained within the socket and skirt, or between the walls of a doublewalled socket. In Fig. 3, the tension of the spring may be varied by a nut 17 on the valvestem ; or the nut may be arranged to act on the lower end of the spring. The ends of the piston valve may be rounded, and a lug on the piston, working in a guide slot, may be similarly rounded. Felt washers may cushion the action.
Patent GB-1472681-A (GB)
Title: Safety belt retractor
IPC: B60R22/353
Filed: 1975-02-04
Abstract: 1472681 Seat belt retractor FIRESTONE TIRE & RUBBER CO 4 Feb 1975 [4 Feb 1974] 4801/75 Heading A3V A seat belt retractor includes mechanism for holding the locking pawl clear of the reel ratchet during initial pull-out of the belt. The reel is spring wound and has ratchet flanges 36 engageable by pawls 38 of a locking bar 18. A ring 21 is driven by, and in the opposite direction to, the reel. It has a coined peripheral surface 22 and a peripheral cam 34. The bifurcated end 35 of a pivoted interposing member 23 engages the ring periphery. Initially the pawls are held clear of the ratchet by the turns of the wound-in belt. The cam 34 raises the member 23 into the position shown, so that extension 40 of the bar is engaged by a hook 39 of the member 23 and the pawls held clear of the ratchet. This position is maintained by frictional engagement of the end 35 with coining 22 of the ring periphery, when the belt is slackened slightly, the member falls permitting the pawl to engage the ratchet.
Patent GB-417024-A (GB)
Title: Improvements in hangers for brushes and similar articles
IPC: A47L13/512
Filed: 1934-02-14
Abstract: 417,024. Friction grips. BERRY & SONS, Ltd., W. L., and BERRY, A., Greengate Saw Mills, Accrington. Feb. 14, 1934, No. 4826. [Class 44.] In hangers for handled articles of the type comprising a pivoted ring B through which the handle is passed and which takes up a position such that it frictionally grips the handle between its opposite edges, the ring is formed with a rearwardly extending portion bl of T-shape and the fixed bracket A has a central slot a at each side of which are two forwardly projecting lugs a<1> with recesses a<2> at the rear, the parts being connected together by passing the T-shaped end of the ring through the slot and engaging the horizontal arms b<2> in the recesses a<2>. The front of the ring B is bent at b<3> to provide a handle for raising it. In the modification shown in Fig. 9, the ring is formed with a downward projection b4 to prevent it from falling into a vertical position, and with an upward projection b<5> recessed at its end to contact with the handle c. The lugs of the fixed bracket are formed with hook-shaped lower ends. The ring may be oval or diamondshaped and the parts may be made of synthetic resin.
Patent GB-572889-A (GB)
Title: Improvements in cooling radiator circuits for aircraft, military vehicles and other craft
IPC: F28F27/02
Filed: 1942-04-13
Abstract: 572,889. Cooling radiators for aircraft. MACLAREN, O. F. April 13, 1942, Nos. 4861, 12960, and 15829. [Class 64 (iii)] [Also in Group XXIX] Fracture of a section of a cooling system for aircraft or of a like fluid flow system is in dicated or the flow through the fractured section is cut off by the closing or opening of an electric circuit consequent upon the change of flow through the section or upon the breaking of a wire screen in front of the section and connected in the electric circuit. The pressure of the fluid in pitot tubes 18, 19, 18A, 19A inserted in the inlet and outlet pipes 8, 10 of a section so acts upon capsules 20, 21, 20A, 21A controlling a switch 26 that, upon a variation of flow due to leakage in the section, the switch is closed and establishes a circuit through a fuse wire 16, which normally holds the inlet and outlet valves 13, 13A in their open position.
Patent GB-907026-A (GB)
Title: Improvements in or relating to hydraulic pumps
Inventor: TRONG WILLIAM ARMS
IPC: F04B9/02
Filed: 1959-02-12
Abstract: 907,026. Reciprocating pumps. ARMSTRONG PATENTS CO. Ltd. Feb. 1, 1960 [Feb. 12, 1959], No. 4870/59. Class 102 (1). [Also in Group XXXII]. A pump for use in a hydraulic system to operate a displaceable member such as a ram in a vehicular suspension system, comprises a pump body 10, Fig. 4, formed with a reservoir 15, connected if desired by a union 17 to a further reservoir 16, Fig. 1, and parallel pumping bores 12 mounting bucket pistons 60 fitted with bucket valves 68. Rods 62 and a crank-plate 64 connect the pistons to a shaft 20 oscillated by movement of the vehicle suspension spring. The shaft 20 is provided with cams 48, 50 actuating valves 56, 58 fitted respectively in a line 44 connecting the pump delivery line 24 to the ram cylinder and a line 46 connecting the ram cylinder to the reservoir. A hydraulic pressure accumulator 26 comprising an elastic diaphragm 40 is connected to the line 24. To prevent overpressure in the accumulator a pressure relief valve 34 is fitted in a line between the line 24 and the reservoir or alternatively to absorb shock loads in the pump, valves 32 constituting damping valves are fitted in ducts 30 Interconnecting the delivery ends of the pump bores. These latter valves in a practical construction comprise a spring-loaded, hollow valve member 114, Fig. 4 seatable on a plug 106 and a spring-loaded valve member 110 seatable on the valve member 114. In a modified construction, bucket pistons 60 are replaced by pistons 128, Fig. 7 reciprocable in lines 126 fitted with loose-ball bucket valves 138 and loose-ball delivery valves 148. The pistons are operable by a cam 130 fixed to the shaft 20. On movement of the shaft 20 through a lever connected to the vehicle suspension spring, the pump pistons are actuated and at the same time one or other of the valves, 56, 58 is unseated to either raise or lower the ram in dependence upon theattitude of the spring relative to the vehicle frame, in order to compensate changes in load and maintain the vehicle at a desired mean riding height.
Patent GB-1508562-A (GB)
Title: Polycarbonate with permanently improved impact properties
IPC: C08L23/08
Filed: 1977-02-07
Abstract: 1508562 Polycarbonate compositions MOBAY CHEMICAL CORP 7 Feb 1977 [9 Feb 1976] 4893/77 Heading C3R A composition comprises a polycarbonate and from 3 to 20% by weight, based on the poly. carbonate, of an ethylene-vinyl acetate copolymer having a melt index of from 1À2 to 350. The polycarbonate is preferably derived from bisphenol A.
Patent GB-549489-A (GB)
Title: Improvements in or relating to ultra-high-frequency receiving devices
IPC: H03D1/26
Filed: 1941-04-17
Abstract: 549,489. Valve circuits for wiretess reception. ART.-GES. BROWN, BOVERI, & CIE. April 17, 1941, No. 5003. Convention date, Feb. 27, 1940, [Classes 39 (i) and 40 (v)] In a super-regenerative receiver using a velocity modulated electron beam tube the tube is provided with a modulator comprising two spaced .control electrodes and an inductor consisting of two spaced energy extracting electrodes and back coupling is provided to produce oscillation..Fig. 1 shows a tube in which the quenching frequency generated by an oscillator 15 is applied to a grid 17 arranged between the cathode 2 and'the acceleration electrode 5. As shown the aerial 10 is coupled to a hollow resonator associated with the inductor electrodes 7 and back coupling is provided to the modulator electrodes 6 from the resonator 8. Alternatively a Lecher wire system Fig. 2 (not shown) may replace the hollow resonator and be similarly coupled to the tube and. the aerial. As shown the output electrode 13 is biased to act as a retarding electrode so that in the oscillating condition electrons are repelled to the electrode 7 thus converting the velocity modulation to conduction current modulation. In the modification, Fig. 2 (not shown), a magnetic field at right-angles to the electron beam is employed to convert the velocity modulation to conduction current modulation, the electrons being deflected to a displaced output electrode.
Patent GB-877856-A (GB)
Title: Improvements in gas oven control
Filed: 1959-04-20
Abstract: 877,856. Valves. WILCOLATOR CO. April 20, 1959 [July 22, 1958], No. 5007/60. Divided out of 877,853. Class 135. The invention is as described in Specification 877,853 but the claims relate to a thermostatic valve device having an electric switch 87, 92, for an " oven-ready " warning signal, actuated by an element 94 connected to the valve 37.
Patent GB-285498-A (GB)
Title: Improvements in or relating to steam storage systems for compensation of load variations
IPC: F01K3/14
Filed: 1928-02-17
Abstract: 285,498. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Feb. 18, 1927, [Convention date]. Steam supply, method of.-In a steam-power plant using superheated steam, superheat is withdrawn from the steam during partial load and stored up and used for the generation of steam which is supplied to the main for rising load. Steam is generated in a boiler A, passed through a superheater B, and led to a turbine C through a main service pipe V. In parallel with the part V' of pipe V is a pipe N and a flow-through chamber U of a superheat accumulator U. A valve O in pipe V1 closes and opens with rise and fall of pressure respectively. A constantpressure, hot-water accumulator E is connected by a pipe D to the pipe V between the superheater B and the pipe N, and to the boiler feed S. A valve in the pipe D is controlled by the pressure in the pipe V. A flow-through chamber U2 for water is arranged in the accumulator U and is connected to the accumulator E and to the pipe V through a valve R controlled by the pressure therein. The accumulator chamber U3 is filled with water or other liquid with a high boiling point. The water in chamber U2 is directed in an atomized condition through nozzles D1 against the partition wall W of the chamber U and thereby vaporized. With falling load, steam first passes into chamber U to heat the storage agent in the chamber U3. With a further fall, the valve O closes and steam passes to the water accumulator E. With a rise of load, the valve in pipe D is first closed, then the valve O is opened. If a further increase in load causes a fall in pressure in pipe V1 the valve R opens, and water passes to chamber U2 and the steam therefrom to pipe V.
Patent GB-415453-A (GB)
Title: Improved carton or folder for matches
IPC: A24F27/20
Filed: 1933-02-18
Abstract: 415,453. Match carton or folder. PLATT, P., Bell Buildings, Mumps, Oldham. Feb. 18, 1933, No. 5036. [Class 18.] A match carton or folder comprises a strip of thick paper &c., folded several times so as to enclose a strip of abrasive material and the heads of matches, which are automatically struck upon withdrawal. The strip a is folded at 1, 2, 3 into four leaves and has two lines of holes to receive the matches, which upon withdrawal are ignited by the abrasive material a<2>. The edges of the folded strip are secured by wire staples. Specification 289,085, [Class 18], is referred to. Reference has been directed by the Comptroller to U.S.A. Specification 1,889,180.
Patent GB-657797-A (GB)
Title: Method for rendering light alcoholic beverages resistant to microorganisms
IPC: C12H1/14
Filed: 1949-02-24
Abstract: The resistance to micro-organisms of light alcoholic beverages such as beer and wine, is increased by dissolving in them dehydroacetic acid or a neutral dehydroacetate such as the sodium, potassium or ammonium salt.  Amounts of dehydroacetic acid or dehydroacetate up to 0.1 per cent by weight of the liquid may be used and may be added after the desired degree of fermentation has been reached.  Examples are given of the adverse effect of dehydroacetic acid and its salts on the growth of moulds, yeasts and bacteria which contaminate beer and wine.
Patent GB-373171-A (GB)
Title: Improvements in folding deck chairs
IPC: A47C4/40
Filed: 1931-02-18
Abstract: 373,171. Deck chairs. BLOWER, A. H. and BLOWER, S. F., 34, Canal Street, Nottingham. Feb. 18, 1931, No. 5093. [Class 52 (ii).] In a deck chair wherein the seat and back frames are pivoted to opposite ends of a rear strut D and the seat frame B is slidable between the sides of the back frame A, complete disengagement of these frames, and also accidental collapse of the chair, is prevented by stops J secured to the outer sides of the seat frame bars. The stops can be constituted by the struts L, Fig. 4, which support the chair arms K when such are provided.
Patent GB-1027787-A (GB)
Title: Improvements relating to rotary-piston internal combustion engines
IPC: F02B75/02
Filed: 1965-02-05
Abstract: 1,027,787. Rotary-piston internal combustion engines; fuel-injection pumps. DAIMLERBENZ A.G. Feb. 5, 1965 [Feb 7, 1964], No. 5113/65. Headings F1A and F1F. In a rotary-piston fuel-injection engine of Wankel type, to obtain stratification of the fuel without throttling the combustion air to ensure low fuel consumption, a second injection nozzle is fitted to inject fuel into the induction passage or the admission port. In Fig. 1 (not shown), a first nozzle 15 injects fuel into the working chamber adjacent the spark-plug 14 and a second nozzle 16 transversely into the induction passage 17 to be carried along by the combustion air so that the mixture is compressed on the planetary rotation of the piston 3. Fuel to the nozzles 15, 16 is supplied by separate plungers in a fuel-injection pump 20 which is controlled by an arm 21 fixed to a shaft 23 and linkage 22. The shaft 23, inside the pump casing carries a cam-disc 24, Fig. 2 (not shown) formed with slots 27, 28 co-operable with pins 29, 30 on spring-loaded pump plunger regulating rods 25, 26, one to each plunger. On engine starting or idling, the disc 24 is positioned so that the nozzle 15  delivers a minimum constant quantity of fuel which is sufficient to permit ignition of the weak mixture which is being conditioned for combustion during compression. To increase engine power the disc 24 is rotated clockwise so that in the intermediate load range of the engine, the regulating rod 26 is adjusted to gradually increase the fuel supply through the nozzle 16 to enrich the mixture being compressed whilst the fuel supplied by the nozzle 15 remains constant. When the engine reaches its full-load range, the disc 24 is rotated further clockwise so that the fuel supplied by the nozzle 16 remains constant whilst that supplied by the nozzle 15 gradually increases.
Patent GB-248912-A (GB)
Title: Spindle driving apparatus for spinning, doubling, twisting and like machines
IPC: D01H1/241
Filed: 1925-02-25
Abstract: 248,912. Speak, J., and Tweedales & Smalley (1920), Ltd. Feb. 25, 1925. Spindle-driving apparatus.-In order to facilitate reversal of the spindle-driving bands of spinning, doubling, twisting, and like machines tension pulleys D and a cylinder or auxiliary pulleys E are so arranged that their upper peripheral portions are approximately level with the lower flanges of the spindle wharls a, whereby they work equally well in either direction. Each tension pulley D is mounted on a pivoted weighted arm d, so that change in tension due to reversal and variation in length of the driving band can be taken up. The reversing gear is constituted by wheels G, G', G<2> so arranged that the tin roller C can be driven from wheel G either directly through wheel G<1> or indirectly through wheel G<2>. wheels G<1> and G<2> being made slidable for this purpose.
Patent GB-1414408-A (GB)
Title: Rotary shaft packings
IPC: F16J15/32
Filed: 1973-02-02
Abstract: 1414408 Rotary shaft seals SOC INTERNATIONALE DE MECANIQUE INDUSTRIELLE SA 2 Feb 1973 [8 May 1972] 5229/73 Heading F2 A rotary shaft 1 is sealed where it extends through a wall 2 by packing comprising an elastomer sleeve 4 secured to the shaft or wall and having an extension 5 which is arcuate in longitudinal section and terminates in a sealing lip 6 urged by the elasticity of the extension into sealing contact with the wall or the shaft. The lip has a sealing edge 7. In the embodiment shown in Fig. 3, the sleeve and lip are reinforced by metal rings 10 and 9, respectively. The material of the sealing lip 6 may be reinforced during moulding by a mineral filler, e.g. graphite or zinc oxide, so that it is more rigid than that of the sleeve 4 and extension 5.
Patent GB-1037832-A (GB)
Title: A sprag freewheel
IPC: F16D41/07
Filed: 1963-02-08
Abstract: 1,037,832. Ratchet clutches. GEORG MULLER KUGELLAGERFABRIK KOMM.- GES. Feb. 8, 1963 [Feb. 8, 1962], No. 5306/63. Heading F2C. A ratchet clutch has friction sprags 6 biased by spring tongues 48 formed on a continuous ring to engage inner and outer races 2, 3, an apertured cage 7 for the sprags supporting the tongues. The spring tongues 48 are constituted by zig-zag portions of a continuous wire 35 passing back-and-forth between the sprags 6 and carried by lugs 5 at opposite ends of the sprag cage 7. Caged rollers 39 at each side of the sprags 6 &c. journal the inner and outer races 2, 3 and are retained in position by guide rings 40. In a modification, Figs. 2-4 (not shown), a common cage 7 has two sets of sprags 6 mounted side-by-side and each set is biased to engage the associated races by its own continuous wire spring 35 formed with tongues 48. The inner and outer engaging surfaces of the sprags 6 each have two areas 9, 10 of different radii of curvature.