baber/WOPTO huggingface dataset:
Patent GB-688910-A (GB)
Title: Thermionic valves
IPC: H01J19/42
Filed: 1950-01-17
Abstract: 688,910. Thermionic valves. SONOTONE CORPORATION. Jan. 17, 1950 [Jan. 26, 1949], No. 1251/50. Class 39(i) A thermionic valve, particularly of the subminiature type, having an assembly of electrodes which extend parallel with a common axis and are enclosed within a coaxial hermetically sealed envelope formed with a flat end wall of insulating material, is provided with at least five leads sealed through the end wall to provide external connections for the electrodes, at least three of the leads being aligned in a plane and the remaining leads being offset from the plane to increase the insulating spacing between the leads. The valve may be a beam tetrode comprising a filamentary cathode 21, a control grid 22, a screen grid 23, a pair of beam-forming plates 25, 26 and an anode 24. The electrodes may be assembled between two spaces 31, 32 provided with apertures for the grid support rods and the lugs 37 of the beam-forming plates, with triangular apertures for the cathode, and with recesses 33 to receive the anode tongues. The cathode is welded at one end to a tensioning spring 54 supported on a U-shaped member welded to the lug 37 of one of the beam-forming plates 26; at the other end it is welded to an L-shaped member 46 which is welded to a lug of the other beam-forming plate. The getter support 61 may be welded to an anode tongue 35, or alternatively  the anode itself may be provided on its exterior surface with a pocket for the getter material. Leadin conductors 13, 15 may be welded to the control and screen and support rods and conductors 16 to the anode. Lead-in conductors 12 and 14 are bent over internally and connected to the support rods 17 and 18 which are welded to the lugs of the beam-forming plates and thus serve as connections to the cathode and the beam-forming plates. Conductors 12, 14 and 16 lies in a plane, conductors 13 and 15 being staggered from the plane to increase the spacing. The anode may be provided with arcuate channels 55 to increase its stiffness and the beam-forming plates may be provided with longitudinal channels 48, Fig. 2, for the same purpose. A tube with a distance of 0.315" between spaces 31, 32 operating with a plate and screen voltage of 22.5 and a plate current of 200 ÁA may have a transductance of 100 microhms and a plate resistance of 1 M#. A similar tube with 0.6" between the spaces using the same potentials may have a transductance of 400 microhms and a plate resistance of 170,000 ohms. In assembly the upper spaces 31 is placed in a jig, the grids and anode inserted in the spaces, and the lower spaces is put in position. The cathode is then inserted and the getter strip welded in position. The electrode assembly is then welded to the support and leading-in rods. Specification 324,175, [Class 39(i)], is referred to.
Patent GB-1453792-A (GB)
Title: Microwave oven
IPC: H05B6/78
Filed: 1974-01-10
Abstract: 1453792 Microwave ovens BEREB SA (BUREAU D'ETUDES RECHERCHES ET EXPOLITATION DE BREVETS) 10 Jan 1974 [16 Jan 1973] 01251/74 Heading H5H A vacuum microwave drying oven has a housing 1, divided into a first section 1a for receiving microwaves and a second section 1b separated from the first to have a lower microwave field, a conveyer 6 for conveying material from the first to second sections, a microwave window 7 sealed by a wall 8 of a material non-absorbant to microwaves between the first section and an adjustable resonant cavity 9 having apertures 10 for circulation of cooling air, a funnel 15 and a collecting reservoir 17 communicating with the funnel via a valve 16. The sections are separated by metal partition 4 with a slot 5 for convyer and microwaves. Cooling water coil 14 absorbs energy to maintain the energy field in section 1b at a lower level than section 1a. Roller 13 crushes foamed dried material to enable it to pass through slot 5. Microwaves generated within housing 23 pass to the oven via telescoping resonant cavity sections 9a, 9b. Windows 21 permit visual inspection. Window 22 permits infra red measurements to enable control of process parameters (degree of vacuum, speed of conveyer, intensity of radiation, rate of supply of liquid via pump 12). Plates 19 cool the product before it is chopped by cutters on roller 18 and falls into vibrated funnel 15.
Patent GB-766558-A (GB)
Title: Improvements in liquid fuel atomising nozzles
IPC: F23D11/28
Filed: 1954-01-15
Abstract: 766,558. Spray burners. DOWTY FUEL SYSTEMS, Ltd., and SIMMONS, H. C. April 14, 1955 [Jan. 15, 1954], No. 1279/54. Class 75(1) In a liquid fuel atomizing nozzle comprising a circular swirl chamber 14 having tangential fuel inlet passages 16 and converging at one end to a circular orifice 17, two spaced flat baffle surfaces extend forwardly from the discharge side of the orifice on opposite sides of the orifice axis so that the spray issuing from the orifice impinges on the surfaces whereby angular divergence of the spray is greatest in planes which extend between the surfaces. The swirl chamber 14 and discharge orifice 17 are formed in a nozzle element 13 which projects forwardly beyond the discharge orifice to terminate in a plane 18 normal to the axis'of the orifice. The two flat baffle surfaces are constituted by the sides of a slot 19 recessed in the forward plane 18 of the element 13. The sides of the slot are tangential to the discharge orifice and the base of the slot is arcuate with the orifice centrally located therein. The sides of the slot may be parallel or inclined to each other at a small angle to provide a spray which is wider at one end of its axis of elongation than at the other. The nozzle element 13 is fixed in a central opening, 15 in the forward end of. a cylindrical housing 4 and is spigoted on to a hollow neck 11 on a collar 8 spigoted on to a head piece 6. A cylindrical projection 10 on the head piece 6 enters the neck 11 with clearance to form an annular spill orifice 12 from the swirl chamber 14. A plurality. of nozzles may be mounted in the annular combustion chamber of a gas turbine engine and if the flat baffle surfaces of the nozzles are parallel the nozzles are' arranged so that the elongation axes of the spray beams are tangential to the combustion chamber walls and if the flat baffle surfaces are inclined the nozzles are arranged with the wider parts of their spray beams towards the outer wall of the combustion chamber.
Patent GB-758467-A (GB)
Title: Fluorocarbon sulphonic acid compounds
IPC: C25B3/28
Filed: 1954-01-15
Abstract: The invention comprises perfluoro sulphonic acids of the formula RfSO3H where Rf is a saturated fluoro-carbon structure composed solely of 1 to 18 fully fluorinated carbon atoms, each of which is present in an acyclic or cyclohexylic group; the metal and ammonium salts of these acids; and the fluorides of these acids.  Specified acids are CF3SO3H, CF3CF2SO3H, perfluoro decane 1,10-disulphonic acid (CF2)10(SO3H)2, perfluoro decane sulphonic acid CF3(CF2)9SO3H, bis(per fluoro cyclohexane sulphonic acid) C(C6F10)2 (SO3H)2, bis-(perfluoro cyclohexane) sulphonic acid F(C6F10)2SO3H, perfluoroisopentane sulphonic acid (CF3)2CF(CF2)2SO3H, perfluoro-n-hexane sulphonic acid CF3(CF2)5SO3H, perfluoro-n-octane sulphonic acid CF3(CF2)7SO3H, and other higher members of the series up to CH3(CF2)17SO3H, perfluorocyclohexyl methan sulphonic acid C6F11CF2SO3H, perfluoro-(4-methylcyclohexane) sulphonic acid 4-CF3C6F10 SO3H, and the correspond 2-methyl, 4-ethyl, 4-isopropyl, 4-secbutyl, 4-dodecyl compounds. The acid fluorides of these acids are prepared by electrolysing a solution of the appropriate hydrocarbon sulphonyl halide (F, Cl, Br or I) in anhydrous liquid hydrogen fluoride (see Group XXXVI). The acid fluorides can be converted into the potassium or sodium salts by hydrolysis in hot alkali solution which can then be converted to the acids by distillation with strong sulphonic acid. The acids can be converted into salts by reaction with metal oxide or metal or ammonium hydroxide.  The lithium, silver, and strontium salts are mentioned. The vapour phase pyrolysis of CF3 CF2SO2H in an empty carbon-lined tube at 475 DEG  C. results in the production of CF3COF1 COF2 and n-C4F10.  Specification 686,678 is referred to.
Patent GB-657741-A (GB)
Title: Improvements in or relating to wheel structures and wheel cover structures
IPC: B60B7/04
Filed: 1946-11-12
Abstract: 657,741. Vehicle wheels. LYON, G. A. Nov. 12, 1946, No. 1306/50. Divided out of 634,786. [Class 144 (i)] In a side covering-disc for a wheel comprising a hub-cap 128 adapted to snap over the nested portions of a trim-ring 127 and a wheel-engaging attachment-ring 129, the latter is formed with circumferentially-spaced, axially-inclined toothportions 145 for biting engagement with the inner periphery of the bead-seat 120 of the rim 113. To allow for oblique placing of the cover in assembly on the wheel and ensure equal stressing of the fingers when the cover is in final position, the fingers to be first placed against the wheel have a larger (normal) inclination than the remainder. The trim-ring 127 is clamped in position by the beaded edge 132 of the cap 128 which is sprung over circumferentially-spaced humps 140 on the centreportion of the attachment-ring 129.
Patent GB-226686-A (GB)
Title: Manufacture of arsenic and antimony compounds
IPC: C07F9/00
Filed: 1924-01-16
Abstract: Water-soluble organo arsenic and antimony compounds possessing therapeutic properties are prepared by the interaction of ethylene oxide or a homologue or derivative thereof with an arseno benzene, a stibinobenzene, an arsenostibinobenzene, a phenyl-arsinic or -stibinic acid, a benzenearsenoxide, a benzenestibinoxide or a phenylarsine, which contains one or more amino groups with or without other groups.  The ethylene oxide compound enters the amino group to produce an oxyethane, dioxypropane derivative, &c.  Sugar residues may also be introduced into the arsenobenzenes, stibinobenzenes, arsenostibinobenzenes, arsinic and stibinic acids containing at least one amino group by simultaneous or consecutive treatment with the ethylene oxide compound and a sugar.  According to the examples, (1) 4 : 41-dioxy-3 : 31-diaminoarsenobenzene is treated with excess of epihydrin alcohol, propylene oxide or ethylene oxide; (2) the following compounds are combined with excess of epihydrin alcohol, viz., p-arseno-di-[1-phenyl-2 : 3-dimethyl-4-amino-5-pyrazolone], 3 : 31 : 5 : 51-tetramino-4 : 41 - dimethylaminoarsenobenzene, 4 : 41- -dimethoxy-3 : 31-diaminoarsenobenzene, 4 : 41-dimethylamino - 3 : 31 - diaminoarsenobenzene, sodium 4-oxy-3-aminophenylarsinate, m-aminophenylstibinic acid and its sodium salt, 4 : 41-dioxy-3 : 31-diaminostibinobenzene and 3 : 31-diamino-4 : 41-dioxyarsenostibinobenzene; (3) 4 : 41-dioxy-3 : 31-diaminoarsenobenzene is combined with epihydrin alcohol and glucose or galactose; (4) 4 : 41-bismethylamino-3 : 31 : 5 : 51-tetraminoarsenobenzene is treated with glucose and epihydrin alcohol or it is first treated with an insufficient quantity of epihydrin alcohol (two molecular proportions to one of the arsenobenzene) to combine with all the amino groups and the water-insoluble product then rendered soluble by interaction with galactose; (5) 4 : 41-dioxy-3 : 31-diaminoarsenobenzene is first combined with sufficient epihydrin alcohol to react with only one of the amino groups and the product then treated with galactose; (6) 4-oxy-3-aminobenzenearsenoxide, 4-oxy-3-aminobenzenestibinoxide, and 4-oxy-3-aminobenzenearsine are treated with epihydrin alcohol.
Patent GB-1410706-A (GB)
Title: Fuel injection systems
Inventor: KNAPP H
IPC: F02D3/02
Filed: 1973-01-10
Abstract: 1410706 Electronic fuel injection systems for I C engines ROBERT BOSCH GmbH 10 Jan 1973 [11 Jan 1972] 1322/73 Heading G1N [Also in Divisions F and G3] In an I.C. engine electronic fuel injection system, a temperature-dependent resistor 45 arranged in a bridge circuit is provided for determining the quantity of intake air, the bridge circuit charactistic being substantially the same as those of a second bridge circuit also provided with a temperature dependent resistor 19 for determining the quantity of fuel supplied to the engine. As shown in Fig. 2, the temperature-dependent resistor 45 is arranged in a bridge circuit with a second temperature-dependent resistor 46 and two fixed resistors 48, 49, one diagonal of the bridge being connected to an amplifier 54 which controls the current or voltage of the bridge to maintain the temperature of resistor 45 substantially constant, the output of the amplifier then representing the quantity of intake air flowing per unit time. The resistor 46 compensates for air temperature variations. A second bridge circuit includes two temperature-dependent resistors 18, 19 arranged in the fuel supply ducts 17, 20 and fixed resistors 59, 60. An amplifier 65 controls the bridge current or voltage to maintain the temperature of resistor 19 substantially constant, the output of amplifier 65 then representing the quantity of fuel supplied to the engine per unit time. The resistor 18 compensates for fuel temperature variations. The outputs of amplifiers 54, 65 are compared in an operational amplifier 67, the difference controlling an electromagnet 32 which adjusts the movable member of 9 fuel metering valve until the outputs of the amplifiers 54, 65 balance. A resistor 72 connected to the butterfly valve 47 provides # correction and a resistor 73 dependent upon engine cooling water temperature provides heating-up correction. The temperature-dependent resistors are preferably hot wire or hot film resistors having positive temperature coefficients. However, negative temperature coefficient resistors may be used.
Patent GB-227853-A (GB)
Title: Improvements in devices for simultaneously effecting the compression and the circulation of gaseous mixtures
IPC: F04B25/02
Filed: 1925-01-16
Abstract: 227,853. Patart, G. L. E. Jan. 17,1924, [Convention date]. Catalytic apparatus; ammonia, catalytic production of from nitrogen and hydrogen.-Gaseous mixtures, especially such as are used for catalytic syntheses under pressure, are compressed and circulated by a compound piston pump, the cylinder by which the circulation is effected being disposed in line with the finalstage cylinder and connected thereto so that any leakage from the circulation can only escape into the cylinder. Bypasses are provided to regulate the pressure and the rate of circulation. As shown, gas entering by the pipe 1 is passed in succession through the stages 3, 6, 10 of the compressor and through coolers 5, 9, 13 to the circuit 12, synthesis being effected in a reaction chamber 14 and the reaction product removed in a separator 15. The initial stage 3 is constituted by a double-acting piston. The gas travels on through a conduit 16 to the circulation cylinder 17, the piston of which is formed by an extension of the compressor piston. Part of the circulating gas may be by-passed through a. valve 21; and the gas supplied by the pipe 1 may also be by-passed through the valve 23. The cooling-device 13 may be situated at the point 13<1> beyond the junction with the circulation conduit 19. Several compressors may be mounted in parallel, the different cylinders being interconnected and one or more circulation pumps being used. The circulation pump may precede the final compression stage.
Patent GB-986582-A (GB)
Title: Improvements in or relating to composite paperboard
Inventor: GEORGE WALTER CLARENCE
IPC: B65D65/40
Filed: 1962-01-15
Abstract: 986, 582. Faced corrugated paperboard. CROWN ZELLERBACK CORPORATION. Jan. 15, 1962, No. 1433/62. Heading D2B. [Also in Division B5] A substantially rigid composite paperboard comprises a V-shaped corrugated paperboard medium formed of alternately folded planar walls, the apices of the corrugations having a sharp internal fold line and being at least partly severed, a facing sheet or sheets extending over one or both sides of the corrugated medium, and adhesive on the partly severed apices of the corrugated medium securing the facing sheet or sheets thereto. The figure reproduced is a composite one showing two embodiments in section. As shown at E, the corrugated sheet is formed from a blank that was scored before corrugation to form continuous or interrupted score lines 20 and 21 along the crests of the corrugations. These score lines open upon corrugation to form a trough that becomes filled with adhesive 18. As shown at F, the corrugated sheet is formed from a blank that has lines of perforations so that these perforations run along the crests of the corrugations. The adhesive 18<SP>1</SP> penetrates these perforations.
Patent GB-163396-A (GB)
Title: Improvements in or connected with hinges and the like
IPC: E05D11/00
Filed: 1920-01-16
Abstract: 163,396. Lake, A. E., and Beckwith, B. Jan. 16, 1920. Pivoting-adjustments for casements and doors comprise a pivot pin C carried by a plate A secured to the framing F, and a socket member B<2> secured to the movable member G, a bolt D passing through the socket flap-members B<1>, B<3>, with a screw-threaded end on which is a nut with a handle E. By the adjustment of the handle, the socket member binds on the pivot pin and the casement &c. is held in an adjusted position. The plane of the attachment flaps of the hinge member is substantially parallel to the axis of the hinge pin. The handle E is situated on the inside portion of the casement. In a modification, the sleeve H is integral with the socket attachment member.
Patent GB-150226-A (GB)
Title: Improvements in furnace fronts
IPC: F23D11/00
Filed: 1920-01-16
Abstract: 150,226. Reid, J. Jan. 16, 1920. Liquid-fuel fittings. - A convertible forceddraught furnace front is provided with an air-deflector between the front and back plates in the form of a conical shell 7 encircling the oil-supply pipe 17 and tapering from the front to the back plate, radial guide-plates 11, preferably curved, being arranged on its outer surface; in the form shown, these guide-plates project beyond the end of the cone and have their outer edges 12 parallel to the axis of the cone. A plate 16 with conical periphery is adjustably mounted on the pipe 17. The burner nozzle 19 projects into the plane of a Venturi ring 18 mounted on the back plate of the furnace front.
Patent GB-820338-A (GB)
Title: Improvements in or relating to steering and steering control devices
IPC: B64C25/50
Filed: 1957-01-15
Abstract: 820,338. Steering vehicles. RECHERCHES ETUDES PRODUCTION R. E. P. Jan. 15, 1957 [Feb. 22, 1956], No. 1530/57. Class 79(5) In a steering control for a vehicle suspension (e.g. aircraft landing gear) having a " compass " linkage 1, 6 comprising a ball-and-socket or equivalent connection 7 between the arms 1, 6 of the linkage, and a universal joint 19, 20 between the arm 6 and a support on the vehicle, this support comprises a jack, the piston 10 of which is fixed while the cylinder 9 is movable and carries a rack 17 engaging with a pinion 18 serving to rotate the universal joint. Pipes 13, 14 connect chambers 15, 16 in the jack to a steering system including a fluid pressure source and steering controls. Shimmy damping is effected by small orifices (not shown) in the piston 10. Specification 412,191 [Group XXXII] is referred to.
Patent GB-329361-A (GB)
Title: An improved non-corrodible metal
IPC: C22C9/01
Filed: 1929-01-16
Abstract: 329,361. Haddon, W., and Winfield, J. Jan. 16, 1929. Alloys.-A non-corrodible alloy consists of copper, aluminium, and 0.25-0.4 per cent of manganese, together with nickel or iron or both. The alloy may contain 88.5-90 per cent of copper, 7.5-10 per cent of aluminium, about 1 per cent of nickel, and up to 2.75 per cent of iron. In some cases up to 1 per cent of tin, lead, or similar metal may be added.
Patent GB-979591-A (GB)
Title: Impedance matching
IPC: H04L25/12
Filed: 1962-01-16
Abstract: 979,591. Impedance networks; transistor pulse circuits. RADIO CORPORATION OF AMERICA. Jan. 16, 1962 [Feb. 13, 1961], No. 1602/62. Headings H3T and H3U. A mismatched transmission line 10, intended for transmission of a steepfronted wave is associated with a matching section 22, 24 which has an impedance for the higher frequency components of the wave which is substantially equal to the line impedance and a D.C. impedance of substantially zero. The line 10, which may be a coaxial line, a twisted pair or a shielded wire, is connected to a driver stage 32 having a very low impedance. The signal consists of a direct current level having a steep leading edge this being fed to a variable high impedance load consisting of one or more of the logic stages 34. The combination 22, 24 is chosen so that the time constant L/R is somewhat longer than the delay time of the line 10 or somewhat greater than the rise time of the signal, whichever is larger. The wave is reflected from the mismatched output end C of the line but sees a matched impedance at the input end B so that there is no further reflection. After the full rise time, the combination 22, 24 appears as zero resistance and no D.C. energy is absorbed.
Patent GB-581637-A (GB)
Title: Improvements in or relating to extrusion heads for extrusion moulding and injection moulding apparatus
IPC: B29C48/86
Filed: 1945-01-19
Abstract: 581,637. Extrusion and injection-moulding machines. ARON, E., and POLLARD, E. Jan. 19, 1945, No. 1630. [Class 87 (ii)] In an extrusion head of the kind having an external helical heating channel 75 encircled by a sleeve 77, the sleeve has ports 81, 82, which communicate with opposite ends of the channel. An outer casing 76 encircles the sleeve and i s spaced therefrom by longitudinally-extending ribs 79. Hot fluid enters the casing through pipe 86, passes between two of the ribs 79 and through port 81, along channel 75, and out through port 82, the inter-rib space and pipe 88. A transverse partition 97 divides the inter-rib space into entry and exit channels. Specifications 581,605 and 581,606 are referred to.
Patent GB-762464-A (GB)
Title: Improvements in or relating to laminated panels for lining walls
IPC: E04C2/38
Filed: 1953-01-20
Abstract: 762,464. Laminated materials. FINDLAY, G. K. April 20, 1954 [Jan. 20, 1953], No. 1641/53. Class 140. [Also in Group X] A laminated panel for lining walls comprises an inner core a composed of a compressed body of material such as finelydivided cork or strawboard, having adhesively affixed thereto outer layers d of fabricated board such as hardboard, cement-board, or plasterboard, the core being surrounded by frame members b of wood lying partly within the confines of the outer layers. Opposed edges of the panel may be tongued and grooved as in Fig. 3.
Patent GB-1363947-A (GB)
Title: Pressing roll
IPC: F16C13/00
Filed: 1972-01-13
Abstract: 1363947 Rollers TAMPELLA AB OY 13 Jan 1972 [19 Jan 1971] 1663/72 Heading F2U A roller comprises an outer shell 1 made resistant to bending by being mounted on bearings (e.g. needle roller bearings 6) to rotate about a stationary tube 2 supported by jacks 5 (e.g. pneumatic or hydraulic) in a hollow core 4 with pistons projecting through the core wall. The jacks 5 may act on a common rail 3 extending axially.
Patent GB-717708-A (GB)
Title: Improvements in photomechanical resist compositions
IPC: G03F7/038
Filed: 1952-01-21
Abstract: A substituted mononuclear quinone or a substituted or unsubstituted polynuclear quinone, the quinone compound being free of carboxyl groups, sulpho groups and basic nitrogen containing and hydroxyl groups in positions peri and ortho to an oxo-carboxylic group is added to an organic solvent solution of a cinnamic, o-chloro-cinnamic or m-nitrocinnamic acid ester of cellulose or polyvinyl alcohol for the purpose of increasing the light-sensitivity of photomechanical layers, prepared from the solution.  An example describes the addition of 1 : 2-benzanthrone to a methyl glycol acetate solution of polyvinyl cinnamate. Specifications 695,262, 713,947, 717,709, 717,710 717,711 and 717,712 are referred to.