baber/WOPTO huggingface dataset:
Patent GB-316611-A (GB)
Title: Improvements in or relating to luminous electric discharge tubes
IPC: H01J61/28
Filed: 1929-07-05
Abstract: 316,611. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. fiir Elektrische Gl³hlampen). Aug. 1, 1928, [Convention date]. Vacuum tubes.-The filling of a lamp is maintained by means of a gas-emitting substance which is heated by an electric heater connected in circuit automatically when the discharge current reaches a predetermined value, so that a common gas such as carbon dioxide, nitrogen, or hydrogen is emitted, the heater being normally disconnected. The main gas filling may consist of a common gas with or without one or more rare gases. The substance is preferably in the form of a rod consisting of a mixture of magnesium or calcium carbonate, sodium or barium azide or nitride, or lithium hydride, with a flux such as powdered glass or enamel which sinters at a lower temperature than the gas-emitting materials, and acts as a binder. Sintering is effected in a vacuum or in a container through which a flow of gas is maintained of the same kind as that which is emitted by the material. In the lamp shown, the rod 14 is mounted in a side tube 13 and the heater 12 is controlled by a relay having a winding 7 in series with the secondary 4 supplying the lamp, the heater being normally short-circuited by a plate 9 carried by a core 8; or the rod may be mounted inside the lamp. The gas evolved from the rod may be supplemental to gas evolved from the electrodes 2, which, for this purpose may have perforated conical enclosures 20 containing gas-emitting material. In a modification, the 'heater is connected in the primary circuit of the supply transformer. In another arrangement a separator such as that described in Specification 315,757 consisting of a palladium tube is sealed into the connecting neck of the side tube, and has a heater in series with the heater 12, the arrangement being such that the gas evolved passes slowly by diffusion through the heated separator.
Patent GB-1338308-A (GB)
Title: Electric stepping motor
IPC: H02K37/02
Filed: 1971-04-19
Abstract: 1338308 Electric motors FUJITSU Ltd 19 April 1971 [7 Feb 1970 (2)] 20745/71 Heading H2A An electric stepping motor comprises a cupshaped rotor 2 having axially extending teeth 3 disposed between the radially spaced, toothed members 4, 5, of each of a plurality of circumferentially spaced U-shaped stator elements, the teeth on each member having the same pitch as the rotor teeth and the teeth of the different elements being mutually staggered with respect to the rotor teeth. In the threephase motor shown, Fig. 3, the teeth of the stator elements 4A, 5A; 4B, 5B; 4C, 5C, are staggered by <SP>1</SP>/ 3  of the rotor tooth pitch. The stator windings, e.g. 11, may be mounted as shown in Fig. 1 or on the legs 8, 9, of the U- shaped elements.
Patent GB-1292335-A (GB)
Title: Improvements in and relating to fuel elements for nuclear reactors
Inventor: ROBINSON JAMES ANDREW
IPC: G21C3/16
Filed: 1969-04-23
Abstract: 1292335 Fuel elements NUCLEAR POWER GROUP Ltd 31 March 1970 [23 April 1969] 20753/69 Heading G6C A fuel element comprises a nuclear fuel member located in a graphite container, adjacent surfaces of both the container and the fuel member having fins, the fins on the container overlapping radially those on the fuel member. Initially the fuel member is a close fit inside the container so as to minimize gaps at the fuelgraphite interface. Differential shrinkage of fuel member and graphite during operation causes gaps to open up which can result in overheating of the fuel member. The radial height of the fins is such, however, that an overlap is maintained even after the gaps have opened up to the maximum degree. Various fin shapes are possible and in one embodiment the fins are of sawtooth form so designed as to induce relative rotation between the fuel member and the container. As a result of the overlapping fins heat can be transferred in a circumferential direction which means that the temperature drop across the fuel-graphite interface is less dependent on radial gap width than with elements without fins of the kind described. Any contact between the fins reduces the temperature difference between the fuel and graphite and hence reduces the risk of overheating of the fuel in local regions. Typically the fuel member is of enriched uranium in particulate form in a graphite matrix. The fuel member may be annular in crosssection and have both inner and outer graphite containers, each provided with fins overlapping radially corresponding fins on the fuel member. In this case, the coolant flows between the outer surface of the inner container and the inner surface of the fuel member, as well as over the outer surface of the outer container and the inner surface of the inner container.
Patent GB-1389912-A (GB)
Title: Heat-shrinkable article
IPC: H02G15/18
Filed: 1972-05-04
Abstract: 1389912 Cable glands RAYCHEM CORP 4 May 1972 [5 May 1971] 20790/72 Heading H2E [Also in Division F2] In a heat-shrinkable insulating sleeve 1, comprising a cylindrical portion 2 having at one end an internal annular projection 4 which engages a complementary groove 5 in an electrical connector 6 when the sleeve 1 is shrunk on to the connector 6, the other end of the cylindrical portion tapering down into a strain relief portion 3 of diminishing wall thickness which shrinks down on to a cable 7 connected to connector 6, the material of portion 2 is of greater shore hardness than that of portion 3. Preferably, the sleeve is formed as an integral part by injection-moulding, the transition between the portions of different hardness occurring in the tapering region. Preferred hardness values for portions 2 and 3 are 80 and 40 Shore units respectively. Such a sleeve may be used to couple a flexible pipe to a fixed duct.
Patent GB-789688-A (GB)
Title: Frostproof aqueous dispersions of copolymers
IPC: C08K5/01
Filed: 1955-07-19
Abstract: A frost-proof aqueous dispersion of a copolymer of butadiene and styrene containing at least 50 per cent of styrene, comprises at least 5 per cent by weight (based on the copolymer) of an aliphatic or cycloaliphatic hydrocarbon boiling between 80 DEG  and 250 DEG  C. Emulsifiers, e.g. lauryl polyglycol and hexyl phenol polyglycol ethers and alkali salts of alkylnaphthalene sulphonic acids may be present.  In examples, white spirit and olefinic hydrocarbons of boiling range 170 to 200 DEG  C., and having an average length carbon chain of C12, are used.  The dispersions may be prepared by mixing, preferably by a turbo stirrer, a concentrated aqueous emulsion of hydrocarbon into an aqueous dispersion of copolymer.  The dispersions may be used as binding agents for pigment prints and finishes and for slip- and nap-proofing polar fabrics.
Patent GB-1503973-A (GB)
Title: Maphthalene compounds containing phosphonic acid groups
IPC: C07F9/38
Filed: 1975-05-16
Abstract: 1503973 Phosphonic acid derivatives of aminonaphthalenes IMPERIAL CHEMICAL INDUSTRIES Ltd 31 March 1976 [16 May 1975] 20848/75 Heading C2P The invention comprises compounds of the formula wherein m is 0, 1 or 2, n is 0 or can be 1 if m is 1 or 2 in which case X 1  is NH 2  or OH in meta position to a SO 3 H group, X is a divalent aralkylene or arylene radical which may be substituted, e.g. by CH 3 , F, Cl, Br or NO 2 , and p is 1 or 2. They may be obtained by heating together a compound of formula  wherein X 2  is OH, NH 2  or NHR where R is C 1 -C 4  alkyl, which is not in meta position to SO 3 H and an amino compound: in the presence of an aqueous solution of an alkali metal bisulphite. The compounds in which n is 0 and p is 1 may also be obtained by heating together a compound of Formula III or IV in which one X 3  is H and the other is COOH with the amino compound NH 2 XP(O)(OH) 2  in the presence of an aqueous solution of an alkali metal bisulphite. The products (I) are useful as dyestuff intermediates.
Patent GB-1112674-A (GB)
Title: Dual beam lamp
IPC: F21S8/10
Filed: 1965-05-17
Abstract: 1,112,674. Electric incandescent lamps. C. R. FULLER and E. B. MYERS, [trading as FULLER-MYERS]. 17 May, 1965 [19 May, 1964], No. 20850/65. Heading H1F. [Also in Division F4] A lamp such as a vehicle headlamp comprises a trough-shaped reflector having a first portion and a second portion, the cross-sections of the two portions being in the form of different conic sections with a common focus and a source of light being disposed parallel and adjacent to the common focal line of the reflector. The source is either a ribbon filament positioned so that the opposite sides of the filament direct light towards the respective portions of the reflector, or a gas-filled arc discharge capillary tube. In the preferred embodiment the two portions have a common vertex and the line joining the focus and the vertex of each section is horizontal, the upper section being an ellipse and the lower section a parabola so that all the light emitted by the lamp is below a horizontal plane. The reflector may be made of metal or glass having a vapour deposited layer of aluminium protected by a quarter wavelength layer of silicon monoxide. When the source is a ribbon filament it may be disposed in a separate tubular glass bulb or mounted directly in the lamp, an atmosphere of iodine vapour and argon or xenon being provided in each case. The front glass of the lamp may have a vapour deposited coating of magnesium fluoride.
Patent GB-1102895-A (GB)
Title: An improved method and apparatus for making tufting buttons
IPC: A44B1/12
Filed: 1965-05-18
Abstract: 1,102,895. Making buttons; stamping. R. E. FORSYTH. 18 May, 1965 [18 May, 1964], No. 20918/65. Headings B3A and B3Q. [Also in Division A4] In a method of making a tufting button for upholstery a cap 10 is attached to a collet 11 having a stem 12 by means of dies 20, 21, of which the upper die has a member 22 movable in a central opening 21a which receives the cap blank and the lower die has an opening 23 in which moves a member 25, the opening 23 being of less cross-sectional dimension than the opening 21a to provide an annular shoulder 24 and the member 25 has an inclined shoulder 27 on which the collet rests. As the members are moved together shoulder 24 deforms the free edge of the blank radially inwardly and then as member 25 is moved upwardly shoulder 27 deforms the cap edge, including a cloth covering into contact with the collet.
Patent GB-1302104-A (GB)
IPC: F16L15/04
Filed: 1970-04-30
Abstract: 1302104 Pipe joints; shaft couplings ARMCO STEEL CORP 30 April 1970 [5 May 1969] 20918/70 Headings F2G and F2U A joint between male and female metallic members 10, 11 comprises interengagable tapered screw threads, the male threads being of the vanishing type. A primary seal is formed between interengagable conical surfaces 12, 13 which are displaced from the screw threads. An external shoulder 14 on the male member is provided for engagement by the end 15 of the female member to prevent over-tanging, the join being undercut by between 5-10 degrees (see Fig. 4), while a further shoulder (17c), Fig. 3 (not shown), is provided within the female member to furnish a secondary seal against the end 16 of the male member. The internal shoulder may be integrally formed of the material of the female member, in which case the ends 16, (17a) (Fig. 2, not shown) may be undercut between 5-20 degrees with respect to a radius, and the tolerances of manufacture should allow a separation of not more than 0À01 inches between one shoulder and the respective end when the other shoulder and its respective end are just in contact. In this case it is not important which of the shoulders makes first contact. Alternatively the shoulder (17c) may be furnished by an insert 17 of corrosion resistant material (preferably halogenated hydrocarbon polymer) in which case the undercut must not exceed 10 degrees with respect to a radius and the end of the male member should contact the shoulder (17c) substantially before the end of the female member 15 abuts the external shoulder 14. The joint may be used when joining a male end of one pipe to the female end of a further pipe or for a "threaded and coupled" joint as shown. In the latter case the corrosion resistant material is preferably of "T" shaped crosssection and is located in a groove within the female member. The primary sealing surfaces 12, 13 may be provided with a "phonograph" finish as described in U.S.A. Specification 3,224,799. Specification 1,118,225 is referred to.
Patent GB-734992-A (GB)
Title: Improvements relating to a mass-flow measuring device
Inventor: LI YAO TZU
IPC: G01F1/80
Filed: 1953-07-29
Abstract: 734,992. Rotary meters. LI, Y. T. July 29, 1953 [Sept. 9, 1952], No. 20986/53. Class 110(2). Mass rate of flow of fluids is measured by rotating the fluid so, that a component of flow velocity is normal to the axis of rotation and measuring the Coriolis force acting on the rotated fluid, which force is proportional to the mass rate of flow. In the form shown, a rotating member 6 is mounted in bearings 24 filled within a liquid flow pipe 2, 4 by means of fluid seals 26. The member'6 is divided into portions 8, 10 and 12, 14 by a baffle 15 and a pair of radial tubes 28, 30 of a T-shaped member 28, 30, 32, are mounted to have limited movement within the portions 8, 10. The left-hand end of the tube 32 is secured to the tube 16 of the member 6 and strain gauges 36 are fixed to a reduced portion 34 of the tube 32 and connected by slip-rings 38 and brushes 40 to an electrical bridge or meter. The member 6 is rotated by a motor 20 and the Coriolis force on the tubes 28, 30 due to a liquid flowing from inlet 2 to outlet 4 is measured by the strain gauges to give the mass rate of flow. The Coriolis force also depends on the speed of rotation of the tubes so that the meter range may be extended by varying the motor speed.
Patent GB-1075341-A (GB)
Title: Improvements in or relating to automatic gain control arrangements
Inventor: SOSIN BOLESLAW MARIAN
IPC: H04B3/04
Filed: 1964-05-21
Abstract: 1,075,341. Automatic gain control. MARCONI CO. Ltd. March 17, 1965 [May 21, 1964], No. 21021/64. Heading H3Q. In self-tuning radio equipment there is interposed in the amplifying channel a multi-stage attenuator 5, each stage of which can be switched to give either zero attenuation or twice the attenuation of the preceding stage. Signal is picked up by a pick-up device 7 at a subsequent stage, e.g. after amplifier 3, and compared with a predetermined reference level in comparator 8. This, upon application of an " order to tune " signal to terminal 9, applies a re-setting signal to line 10 if the signal from device 7 differs from the reference level. Reference signal on line 10 re-sets a multi-stage counter and register 6, each stage of which controls a corresponding stage in attenuator 5, so that the latter is set for maximum attenuation. Comparator 8 also passes a starting pulse over line 11 to pulse source 12, e.g. a multivibrator, which consequently feeds a succession of pulses to counter 6, causing the gain to be reduced in successive steps until the signal at device 7 reaches the reference level, whereupon the attenuator is held in this position. The Specification also describes slightly modified modes of operation of the device.
Patent GB-427713-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M23/02
Filed: 1933-07-26
Abstract: 427,713. Spray carburetters. NEESEN, A., 40A, Cecilienstrasse, Zehlendorf-Mitte, Berlin. July 26, 1933, No. 21084. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 27, 1934]. [Class 7 (iii)] Liquid fuel is maintained at a constant level in a float chamber 14 which is not sealed along its upper edge BB. This level is so far below the fuel nozzles that fuel cannot flow to them by gravity if the carburetter is tilted or if the supply valve 16 in the float chamber fails, but escapes around the edge BB. The fuel is drawn by suction through a pipe 18, dipping into the float chamber and a channel 19, and delivered either past one or more valves 26, operated by the throttle valve 13, to one or more nozzles discharging into a Venturi tube 2, or through a bore 21 to a slow-running nozzle 17. The suction in the mixing-chamber acting through a plug 8 moves a cylindrical body 6 in guides 7 to control air inlet ports 9, and the throttle through linkage 22 controls an additional air valve 23. A flap valve 11 is provided to facilitate starting.
Patent GB-1510873-A (GB)
Title: Selt-monitored fluid pressure booster system
IPC: F15B3/00
Filed: 1975-05-19
Abstract: 1510873 Fluid-pressure boosters; hydraulic turbines; pumps OAK RIDGE MACHINES 19 May 1975 [24 May 1974] 21114/75 Headings F1C, F1D, F1F, F1T A fluid-pressure booster, Fig. 3, comprises a body 10, with inlet and outlet ports 16, 18, and a bore 20 connectable to a fluid-pressure operated device, and a sliding spool 22 within the body with which are associated means to convert a high volume low-pressure flow into a low volume high pressure flow, the spool being movable from a first position shown, in which fluid flows from the inlet port 16 through the bore 20 to the device, to a second position, Fig. 4, in which fluid flows from the inlet port through the converter means to the outlet port 18 and also to the device to be operated. In one embodiment, Figs, 3, 4 the pressure converting means is a turbine type pump 58, 60 and motor 50 ,52. In operation, with the spool 22 as shown in Fig. 3, fluid flows from the inlet 16 through the bore 20 to the device to be operated, and, as pressure builds up therein, the spool moves to the right against a spring 28 and is damped by fluid passing through an orifice 48. When the position shown in Fig. 4 is reached, fluid flows from the inlet 16 to the outlet 18 and in so doing turns the turbine motor. This rotates the pump blades 58 and increases the pressure of the fluid flowing therethrough to the device. In a second embodiment, Figs. 5, 6, (not shown), the turbine device is replaced by a gear-pump and motor which operate in a similar manner when the spool moves to the right.
Patent GB-140511-A (GB)
Title: Improvements connected with the mandrels of tube drawing machines
IPC: B21C3/16
Filed: 1918-12-18
Abstract: 140,511. Williams, E. C. Dec. 18, 1918. Drawing.-In drawing tubes, the mandrel, which may rotate, is cooled by fluid, which may also cool the inside of the tube. To allow the mandrel to rotate, the inlet O and outlet P are arranged in non-rotating rings N<1>, N<2> clamped by bolts N<6> on either side of a ring N<5> adapted to rotate with the mandrel, the joint between the rings being kept tight by packing N<4>. The ring N<5> has openings O<1> communicating with annular channels in which are arranged one or more screw caps S having openings t. The mandrel has hellow plugs u, u<1> which make a tight connexion with the caps S and ring N<5> by means of packing W, and which connect respectively with the bore of the mandrel and of the tube i, which is supported by distance-pieces; or the tube may fill the bore, except for longitudinal grooves on its surface; or two tubes, for flow and return, may be used. If the outlet P is closed, a spring valve d allows the fluid to pass into the tube being made. The spring h<1> is adjusted by rotating the valve body d which screws into the nut f, which is adapted to move axially but not rotate in the cavity g.
Patent GB-1155128-A (GB)
Title: Glass Compositions Containing Lithium Ferrite Crystals
IPC: C03C10/00
Filed: 1967-05-08
Abstract: 1,155,128. Lithium ferrite glass compositions. RESEARCH CORP. 8 May, 1967 [23 June, 1966], No. 21201/67. Heading C1M. Lithium ferrite-containing glass particles are formed by heating a mixture of 5i0 2 : Na 2 O: Al 2 O 3 :: 11-13: 3-4:1 together with from 1-10 of each of iron oxide and Li 2 O per mol. of Na 2 O (all parts per mol.) in an oxidizing atmosphere until glass formation is complete, cooling the glass below crystallization temperature sufficiently fast to prevent devitrification and growing crystals of lithium ferrite by heating the glass, in air, at a temperature between 500-900 C. Ferric oxide is preferred but any other oxide will be converted into the trivalent state. Acmite if formed may be removed by grinding off the surface or by heating to a temperature between 920 C. and melting point. The glass is ferro-magnetic.
Patent GB-1385457-A (GB)
Title: Process for the production of polyurethane-urea solutions
IPC: C09D175/04
Filed: 1973-05-04
Abstract: 1385457 Polyurethane coating BAYER AG 4 May 1973 [4 May 1972] 21269/73 Heading B2E [Also in Division C3] Substrates may be coated with polyurethane urea solutions prepared by reacting a prepolymer derived from (a) a substantially linear polyhydroxyl compound of M.W. 500 to 5000, (b) optionally a dihydroxy compound of M.W. 62 to 400 and (c) an aliphatic or cycloaliphatic diisocyanate, with 1, 4-diamino cyclohexane having a cis/trans-isomer ratio of from 10:90 to 60:40 in the presence of a mixture of solvents comprising an optionally chlorinated aromatic and/or aliphatic hydrocarbon and a primary, secondary and/or tertiary aliphatic and/or cycloaliphatic alcohol. The prepolymer is most preferably prepared from a polyester or polycarbonate, a diol containing a tertiary nitrogen atom and 1-isocyanato -3- isocyanatomethyl-3, 5, 5-trimethyl cyclohexane. Mixtures of toluene or xylene with isopropanol, isobutanol or tertiary butanol are particularly effective solvents. The preferred cis/trans ratios of the 1, 4-diamino cyclohexane are from 50:50 to 15:85. Examples describe the coating of sheets of artificial leather, which may have an embossed surface, and a knitted fabric which had been coated with polyurethane by the reversal process. The substrates may be coated by casting, doctor-coating, spread-coating, brush-coating, spray-coating printing or by the reversal process.
Patent GB-285323-A (GB)
Title: Improvements in tunnel kilns
IPC: F27B9/08
Filed: 1927-08-12
Abstract: 285,323. Woodall Duckham (1920), Ltd., and Duckham, A. M. Aug. 12, 1927. Addition to 280,044. Tunnel kilns.-In the kiln described in the parent Specification the heating-gases are drawn off at one side of the zone of open heating through ports a and flues c in the walls of the cooling-zone, and at the other side through grouped ports k leading to ducts i, each in damper-controlled communication with the flues l in the walls of the preheating-zone. Hot air from the wall flues f is supplied to the combustion flues through the roof conduit h.
Patent GB-1533683-A (GB)
Title: Non-aqueous dispersion polymerization of conjugated diolefins
IPC: C08F2/14
Filed: 1977-05-20
Abstract: 1533683 Stabilizers for conjugated diene polymerization GOODYEAR TIRE & RUBBER CO 20 May 1977 [24 June 1976] 21328/77 Heading C3P A process for producing conjugated diolefin polymers using a Ziegler-Natta catalyst comprises carrying out the polymerization as a dispersion in a liquid hydrocarbon dispersion medium using as a dispersion stabilizer, a block copolymer containing at least one block which is insoluble in the dispersion medium and at least one other block which is soluble in said medium. Suitable media are n-butane, neopentane, npentane and a mixture of isomeric pentanes. The soluble block may be polyisoprene, poly- (t-butyl styrene), polybutadiene, polymethacrylates, polyisobutene, poly(vinyl butyl ether), and the insoluble block may be polystyrene, poly(alpha methyl styrene), copolymers of styrene or alpha methyl styrene with butadiene or isoprene, poly(C 1-3  alkyl acrylates and methacrylates) and poly(alkylene oxides). The preferred monomers to be polymerized are butadiene, piperylene and isoprene.