baber/WOPTO huggingface dataset:
Patent GB-1189691-A (GB)
Title: Improvements in or relating to Travelling Wave Tubes.
IPC: H01J23/26
Filed: 1967-04-19
Abstract: 1,189,691. Slow-wave structures. SIEMENS A.G. 19 April, 1967 [20 April, 1966], No. 17922/67. Heading H1D. A helical slow-wave structure 1 in a travelling wave tube is mounted between and supported by at least three hollow insulating tubes 2, each of which extends parallel to the axis and is provided with transverse slots 4 between adjacent turns of the helix, whereby, compared with the use of solid insulating rods, the dielectric loading of the slow-wave structure is reduced. The tubes may be of ceramic, quartz, or glass, and may be supported directly by the tube envelope, or by metal rings within the envelope. The helix may be of tape, and may have only every other turn supported by the tubes.
Patent GB-1162064-A (GB)
Title: Means for Locating and Mounting a Shadow Mask in Colored Television Picture Tubes
IPC: H01J29/07
Filed: 1967-04-19
Abstract: 1,162,064. Colour television tubes. BUCKBEE-MEARS CO. 19 April, 1967 [10 Feb., 1967], No. 17924/67. Heading H1D. In a three-gun shadow mask colour television tube the shadow mask 11 has a flexible resilient rim 13 provided integrally with detents in the form of centrally apertured blisters or bubbles 14. These blisters or bubbles are latched on to locating pins 16 on the side walls of the tube face-plate 10 by flexure of the rim. The rim may be integral with the shadow mask or a metal strip welded to it. A shielding flange or flare may be clipped or otherwise attached to the rim and a further shield conforming to the envelope may be attached to the rim-flange combination.
Patent GB-1420456-A (GB)
Title: Method of fabrication of nuclear reactor fuel elements
IPC: G21C21/02
Filed: 1973-04-13
Abstract: 1420456 Carbon jacket COMMISSARIAT A L'ENERGIE ATOMIQUE 13 April 1973 [25 April 1972] 18012/73 Heading C1A [Also in Divisions G4-G6] A jacket for a nuclear fuel element is fabricated by first moulding the jacket in the dry state and without application of pressure from a mixture of graphite and powdered resin, e.g. phenolic resin, and subjecting the jacket to a coking treatment. In a particular embodiment, a mixture of graphite and phenolic resin is placed in an aluminium mould which is then heated in an oven to 300 C. to obtain polymerization of the mixture. The jacket thus obtained is then heated to 900 C. in a N 2  atmosphere for coking to be effected. This coking treatment can be extended by impregnation of the jacket by heating it to the same temperature in methane.
Patent GB-707000-A (GB)
Title: Liquid fuel control means for internal combustion prime movers
Inventor: HARRIS THOMAS ALFRED
IPC: F02C7/22
Filed: 1951-07-31
Abstract: 707,000. Gas turbine plant LUCAS (INDUSTRIES), Ltd., J. July 18, 1952 [July 31, 1951], No. 18078/51, Class 110(3) [Also in Group XXIX] The supply of liquid fuel from an enginedriven centrifugal pump b the burner c of a gas turbine or jet propulsion engine is controlled by two throttles d, r in the supply pipe a, the main throttle d which is normally open being operated by liquid pressure acting on a piston f under the control of a governing device o responsive to engine speed and the other throttle r which lies between the pump and the main throttle being opened gradually against the action of a spring s as the engine speed increases by the fuel pressure in the supply pipe a. The slidable throttle d co-operates with an orifice e and its operating piston f which is loaded in the throttle opening direction by a spring h is exposed on the spring side to the pressure in a pipe i connected to the pump delivery and on its opposite side to the pressure on the inlet side of the throttled. The pipe i may be controlled by a valve responsive to a fluid pressure related to engine speed. As shown, however, the pipe i has a gap m controlled by a shutter k. The latter is operated by a spring-loaded diaphragm p exposed to the delivery pressure of the pump b or of a separate engine-driven pump. In a modification, the spring-loaded throttle comprises a cup-shaped member with notches in its free edge to permit a restricted flow in the closed position. This member is carried by a spring-loaded diaphragm actuated by the delivery pressure.
Patent GB-1360754-A (GB)
Title: Regulator for centralized refrigerating system
IPC: F25B1/10
Filed: 1972-04-19
Abstract: 1360754 Refrigeration CONSTRUCTIONS ISOTHERMIQUES BONTAMI SARL 19 April 1972 [23 April 1971] 18082/72 Heading F4H [Also in Division F1] A centralized refrigeration system comprises a plurality of compressors 10, Fig. 1, arranged in parallel and supplying a refrigerant, e.g. R22, via a single condenser 11 to a plurality of refrigerated cabinets 13, the compressors being controlled according to the demand from the cabinets by utilizing the pressure of refrigerant in a common return line 17 to operate a pressure or flow regulator. The regulator comprises an oil-filled portion 20, Fig. 2, having a first bellows 28 deformable by pressure changes in the line 17 via an aperture 27 which transmits its deformations to a second bellows 30 having a greater stroke than that of the first bellows. The bellows 30 transmits the movement to a rod 37 having at its upper end a counterweight 38 and a series of screw-threaded rods 47 each with a tapered tip adapted to engage a microcontact 42 mounted thereabove and each contact is individually actuable in dependence on the deformation of the second bellows to control operation of a compressor.
Patent GB-576406-A (GB)
Title: Improvements in or relating to branch fittings for pipes
IPC: F16L41/08
Filed: 1944-09-22
Abstract: 576,406. Branch pipe fittings. BABCOCK & WILCOX, Ltd. Sept. 22, 1944, No. 18114. Convention date, Sept. 23, 1943. [Class 99 (i)] [Also in Group XXII] A branch fitting comprises a tube 18 and a tube 28 of equal diameter inclined at an acute angle to end portion 26 of the tube 18, and a reinforcing baffle 40 extending from the crotch 42 to a central point in the tube 18. The fitting is formed by cutting an inclined slot 54, Fig. 7, cutting a triangular opening 58 in the wall of the tube away from the slot bending the lips '62 thus formed, and welding their meeting edges together to form the diaphragm 40, cutting the end of the tube 28 to fit the opening thus formed in the tube 18, and welding the two tubes together at 22. The ends of the tubes 18, 28, the edges of the lips 62, and the opening in the tube 18 are chamfered to form welding grooves. The angles between the baffle and the tubes 18, 28 are preferably 30 and 15 respectively.
Patent GB-1500017-A (GB)
Title: Diterpenic acid amides and a process for their preparatio
IPC: A61K31/16
Filed: 1975-05-01
Abstract: 1500017 Diterpenic acid amides NIPPON SHINYAKU CO Ltd 1 May 1975 [17 May 1974] 18173/75 Heading C2C Diterpenic acid amides are prepared by reacting a diterpenic acid or a derivative thereof with decylamine, dodecylamine, pentadecylamine, allylamine, diallylamine, cycloheptylamine, cyclopentylamine, α-methylbenzylamine, α- ethylbenzylamine, dibenzylamine, # - phenethylamine, N - methyl - N - cyclohexylamine, N-ethyl-N-benzylamine, N-methyl-aniline or N-phenyl-N-benzylamine. Amides where the deterpenic acid is abietic acid, dehydroabietic acid, #<SP>8(9)</SP> dihydroabietic acid and tetrahydroabietic acid are claimed per se. These amides reduce cholesterol in the blood.
Patent GB-1223372-A (GB)
Title: Method of forming a layer of metal having fine particles included therein by electroplating and electrophoresis
Inventor: SCHMIDT FERENC JOSEPH
IPC: C25D15/02
Filed: 1969-04-09
Abstract: 1,223,372. Electro-plating and electrophoresis. GENERAL ELECTRIC CO. April 9, 1969 [April 22, 1968], No. 18194/69. Heading C7B. Metal having fine particles included therein is deposited on an electrode using an electroplating bath which has positive charge-bearing particles suspended therein, e.g. particles of carbon or other alloying material, abrasive or pigment. The method includes the steps of applying a first potential between first and second electrodes for a first period of time to plate metal on to the first electrode, (ii) applying a second, higher potential for a second period of time to produce a "limiting value of current density" and to electro-phoretically deposit the particles upon the metal plating and (iii) repeating steps (i) and . (ii) alternately to form the metal deposit having fine particles included therein. A "limiting current density" is a current density which remains nearly constant on increasing the potential. Fine pigment particles of ultramine blue and of white porcelain may be used. They may be suspended in either an ethereal aluminium plating solution or a sulphamate nickel plating bath and be electrophoretically deposited by applying 10 to 25 volts for 5 seconds out of every minute otherwise devoted to normal plating. The bath may contain nickel sulphamate, boric acid, an antipitting agent (unspecified) and the pigment; it may be operated at 90‹ F. using a continuing cycle of 55 secs at 120 amps/sq. ft. and 5 secs at 600 amps/sq. ft. In another example, particles of carbon or other alloying material are incorporated in metal and the resulting composite is heat treated to form an alloy.
Patent GB-1177938-A (GB)
Title: Tractors
Inventor: SAUNDERS ARCHIBALD WILLIAM
IPC: B62D49/06
Filed: 1966-04-26
Abstract: 1,177,938. Tandem tractors. A. W. SAUNDERS, and P. G. SAUNDERS. 25 April, 1967 [25 April, 1966], No. 18230/66. Heading B7H. An auxiliary tractor for operation in tandem behind another tractor has rear wheels 2, means for attaching the auxiliary tractor to the rear of the leading tractor, and a control panel 6 mounted at the front of the auxiliary tractor for actuation by a driver on the leading tractor. As shown a conventional tractor is adapted for tandem operation by removing the front wheels and axle, and bolting to the front of the tractor a bracket 4 which carries the control panel 6. A horizontal bar 10 joined to the bracket extends beneath the tractor to provide reinforcement, and a forwardly-projecting drawbar 12 has means for attachment to the power-lift linkage of the leading tractor. The panel 6 carries controls for the engine throttle, power-lift linkage, differential lock, gear-box, clutch and starter.
Patent GB-1024838-A (GB)
Title: Improvements in integrating meters of the rotor disc type
Inventor: ASH FRANK STANLEY
IPC: G01R11/02
Filed: 1962-05-11
Abstract: 1,024,838. Induction meters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 23, 1963 [May 11, 1962], No. 18249/62. Heading G1Q. In an integrating meter in which a rotor disc is provided on its upper surface at or near its periphery with at least one reference mark, a light re - flecting surface above the disc in the vicinity of a window in the meter casing returns light, originating from outside the casing and reflected by the disc away from the window, back towards the disc to improve its illumination. As shown, Fig. 2, the rotor disc 3 of an induction type watt-hour meter drives a counter 7 having display tumblers which are observable through a window 11 in the front wall of the meter casing 1. For calibration purposes the rotor 3 bears radial marks about its periphery, and a dial plate 19 has an extension 21 bent backwards along a horizontal line 22, so that light entering the window 11 is reflected by the preferably whitish surface of extension 21 to illuminate the part of the rotor nearest the window. A datum mark on dial plate 19 is continued on to extension 21, and casts its image on to the rotor disc; errors due to parallax are avoided by ensuring that the datum mark and its image are aligned, as in Fig. 3 (not shown). Fig. 7 (not shown) depicts an alternative arrangement in which the rotor is observable through an aperture 35 in a makers' nameplate; the reflecting surface is provided by a part 31 from aperture 35, bent backwards as shown. To improve illumination of the disc, the reflecting surface may be curved. The datum mark may be arrow-shaped.
Patent GB-776860-A (GB)
Title: Device for controlling the transmission of microwaves
IPC: H01P1/375
Filed: 1953-07-01
Abstract: 776,860. Waveguide accessories. LUHRS, C. H. July 1, 1953, No. 18259/53. Class 40 (8). [Also in Group XL (c)] Microwave energy is controlled, e.g. switched or modulated, by passing it through a device 61 containing a rod 62 of material, e.g. ferrite, active in the Faraday-magneto-optical sense and provided with a coil for varying the magnetic field around the rod, the device being mounted between round waveguides 66, 68 each containing dielectric bars 72 of, e.g., polystyrene or polytetrafluoroethylene. In a modification, the waveguide section containing the rod 62 may have a cut-off frequency for one circularly polarized component which is greater than the frequency of the microwave energy, and which is less for the other component. The rod 62 may be disposed in a solid dielectric material, and the guide containing the rod may be formed by applying silver paint around the dielectric material.
Patent GB-257070-A (GB)
Title: Improvements in or relating to means for driving the spindles of spinning, doubling and like machinery
IPC: D01H1/241
Filed: 1925-07-18
Abstract: 257,070. Brooks & Doxey (1920), Ltd., and Greenhalgh, J. July 18, 1925. Spindle-driving apparatus.-In spinning, doub- Ps 2344. ling, and like machines the tension pulleys 8 of the spindle-driving bands are simultaneously moved about pivots 12 on brackets 13 secured to the levers 15, and the shaft 18 on which the levers 15 are mounted is moved longitudinally so that the tension pulleys may be readily arranged for spinning twist or weft. A rod 19 is moved horizontally so that arms 20 thereon engage arms on levers 11 which carry the pulleys 8, and so that, after a desired delay, another arm thereon moves the shaft 18.
Patent GB-573094-A (GB)
Title: Improvements in and relating to winches
IPC: B66D1/24
Filed: 1943-11-05
Abstract: 573,094. Winches. SUTHERLAND, D. F. Nov. 5, 1943, No. 18408. [Class 78 (v)] In a winch having a two-speed gear within the main casing, an auxiliary gear box containing a two-speed gear is attached to the main casing. The auxiliary gear box n, Fig. 2, is attached to the side of the main casing a and contains gears p, q and s, t which are mounted respectively on shafts o, r. The gears p, are fast on the shaft o which is driven by a motor or manually. The gear s is slidably but non-rotatably mounted on the shaft r and can be moved by screw-and-nut mechanism u<1>, u<2> to bring the clutch members u, v into engagement and so connect the gear t to the shaft. The shaft r extends into the casing a and is connected by bevel gears v<1> to a shaft g carrying a dog-clutch member k and gears i, j. The part k is moved by lever mechanism to engage either of the co-operating clutch members l, m carried by the gears i, j. Gears d, e on the shaft b, which carries the winding drums c, mesh with the gears i, j. A sprocket f fast on the shaft b drives a sprocket w<1> fast on a shaft y outside the casing. The sprocket w<1> is enclosed by a casing w. A sprocket z on the shaft y drives a coiling machine.
Patent GB-1214425-A (GB)
Title: Aperture mask for colour t.v. picture tubes, and method for making the same
IPC: H01J9/14
Filed: 1969-04-10
Abstract: 1,214,425. Colour television tubes. BUCKBEE-MEARS CO. 10 April, 1969 [6 Jan., 1969], No. 18430/69. Heading H1D. In making a colour television tube of the shadow mask type wherein the mask is used as a stencil when forming the fluorescent screen, the mask is provided with smaller apertures during these processes than when it is subsequently incorporated in the tube. The base mask 12 shown in Fig. 2 is made by a photographic method and is exposed on one side through a positive plate and on the other side through a negative plate, the latter process leaving a pattern of enamel dots on one side of the mask. This side is plated with a zinc layer 12a after which the mask is etched to form the apertures 13 and to remove the support for the enamel dots thereby forming the smaller apertures 14. After the formation of the fluorescent screen through the small apertures 14 the layer 12a is etched away leaving the large apertures 13 in the final shadow mask. In another method of manufacture, both sides of a metal sheet are photo-printed and the apertures 13 are etched out. Both sides are then plated to partially close the apertures 13, and after the screen processing the outer layers are removed by etching. In a further arrangement, Fig. 3 (not shown), two independent shadow masks with identical dot patterns but different-sized apertures are joined together during the screen processing, and the mask with the smaller apertures is removed before final assembly. The two masks may be made by a photographic process using the same master plate but different etching times. Alternatively the masks may be made by electroplating on a carrier member, the second mask being plated for a longer period so that the openings in it are smaller. The two masks must be domed or formed in the same die under identical conditions, and the mask with the smaller apertures may be used over and over again with a number of separate larger-aperture masks.
Patent GB-784696-A (GB)
Title: Improvements in or relating to electrolytic cells for the production of aluminium
Inventor: RANSLEY CHARLES ERIC
IPC: C25C3/16
Filed: 1951-08-03
Abstract: The free carbon content of zirconium carbide is reduced by a process similar to that described in Specification 784,697 with respect to titanium carbide, but the final firing temperature is 2700 DEG C.ALSO:Compact masses of titanium carbide or zirconium carbide for use as leading-in conductors in a fused-electrolyte all for the production or refining of aluminium are made by the method described in Specification 784,695.  Specification 754,697 also is referred to.ALSO:Compact masses of titanium carbide or zirconium carbide for leading in conductors in a fused-electrolyte cell for producing or refining aluminium are made by the method described in Specification 784,695.  Specification 784,697 also is referred to.
Patent GB-1112838-A (GB)
Title: Improvements in or relating to lamps for producing coloured light
IPC: F21S6/00
Filed: 1967-04-21
Abstract: 1,112,838. Lighting apparatus. I. DMARTIN. 21 April, 1967 No. 18575/67. Addition to 1,036,900. Heading F4R. [Also in Division G2] A lamp for producing coloured light according to the parent specification is provided with a cover plate having a light-transmitting aperture so arranged that at any given time light from more than one coloured portion of each filter passes through the aperture. The cover plate may be made of glass which is silvered on its underside to render it opaque, the aperture being formed by an unsilvered portion.
Patent GB-1034707-A (GB)
Title: Improvements in air compressor with power increase and safety controls
IPC: F04B35/00
Filed: 1964-05-05
Abstract: 1,034,707. Compressors. HORN PILE & FOUNDATION CORPORATION. May 5 1964 [July 10, 1963], No. 18613/64. Heading FIN. [Also in Division G3P] In an air compressor system Fig. 1 (not shown) wherein an internal combustion engine 10 drives a compressor 11 and the exhaust from the engine is supplied through a pipe 15 to a heat exchanger 17 having heat exchange tubing therein through which air flows from the compressor to a consumption point 14, an exhaust valve 16 and an air valve 31 are automatically operated if the air temperature exceeds a predetermined value to divert the exhaust away from the heat exchanger and simultaneously bypass part of the compressed air direct to the consumption point. The valves 16, 31 are controlled by a device 46 responsive to the temperature of the air passing to the consumption point 14. The exhaust valve 16 (Fig. 6, not shown) comprises vanes 20, 21 fixed at right angles on a shaft 22 which depending on their position direct exhaust from the pipe 15 either to a pipe 23 connected to the heat exchanger shell 24 or to a stack pipe 18. The air flow control valve 31 (Fig. 4, not shown) comprises a cylinder having an inlet 32 for air from the compressor, an outlet 33 connected to the inlet of the heat exchanger tubing 28 and a second outlet 34 connected directly to the consumption point. Slidable within the cylinder are three pistons 37, 38, 41 secured to a piston rod 39 attached to a pivoted link 47 connected to the shaft 22 of the exhaust valve 16. Operation of the temperature responsive device 46 opens a diaphragm valve 43 whereby air from the compressor passes through a connection 44 in the air valve 31 to move the piston rod against its spring 40 to the extreme right position. In this position air passes to the consumption point through both outlets 33, 34 and the exhaust passes to the stack pipe 18. A valve 49 is provided in a line 50 which bypasses the diaphragm valve 43 and is manually operable to cause operation of the valves 16, 31.
Patent GB-637320-A (GB)
Title: Improvements in or relating to driving mechanism for mechanical toys
IPC: A63H29/10
Filed: 1947-07-14
Abstract: 637,320. Driving mechanism for toys. WEISS, G. July 14, 1947, No. 18722. Convention date, July 20, 1946. [Class 132 (iii)] A driving mechanism for toys which also simulates the sound of an internal combustion engine includes a rotor comprising a pressure element, a substantially circular track spaced from said rotor, a collapsible tube extending around said track and being open at one end and having means for forcing a fluid under pressure through at the other end, said pressure element being adapted to press against and collapse a small section of said tube. and means co-operating with said pressure element to move it past the dead point which occurs where the pressure end of the tube first contacts the track. As shown, the propulsion means comprises a substantially circular casing 10 having inside a spiral track 14 of low pitch. Side plates are provided, these carrying centrally disposed bearings for a shaft 20 which is driven by the rotor. A flexible tube 15 is attached to the inner spiral-like circumference of the casing 10. The spiral terminates in a radial step 13, at which point fluid enters the tube, leaving at 16. The flow . of fluid presses against the roller 27 which is releasably mounted on the shaft 24 by spring or other means. The roller may have a toothed or fluted surface if desired. The sudden step in the track causes the  roller 27 to be forced against the tube at the point A as it leaves point B, thus eliminating the dead point occurring where the pressure end of the tube first contacts the track. The sounds produced by the clicking of the roller against the bottom of the step and by the sudden release of air pressure simulate the sound of an internal combustion engine. The complete propulsion means for a toy include an accumulator or pressure chamber provided with outlet lines including valves. The accumulator may be charged by an air pump, a gas generating chemical or a carbon-dioxide capsule. Modifications are described using a flexible tube outside the casing or track, various kinds of spring means for urging the pressure element on to the tube and past the dead point. and rotors with more than one pressure element.
Patent GB-567314-A (GB)
Title: Improvements in or relating to portable electric hand lamps such as inspection lamps
IPC: F21V21/096
Filed: 1943-11-11
Abstract: 567,314. Portable electric lamps. HINDS, R. P. H. Nov. 11, 1943. No. 18767. [Classes 75 (iii) and 75 (iv)] An inspection or other portable electric lamp comprises a main body portion 1 of moulded insulating material formed with a recess in its upper surface to receive the yoke portion of U-shaped magnet or magnets 7, the limbs of which pass through apertures in a cover-plate 8 secured by screws to the body 1. A festoon bulb 3 is supported by spring contact strips 4 embedded in the body 1 between depending limbs 2 supporting a pivoted sheet-metal reflector or glare shield 14. The inner edges of the magnet poles are chamfered or bevelled to facilitate adhesion to a rounded surface. The magnet 7 may be either a permanent magnet or an electromagnet wound in parallel with the bulb 3. A hook 12 gripped between the cover 8 and body 1 or secured to the cover 8 may be provided as alternative supporting means.