baber/WOPTO huggingface dataset:
Patent GB-1015236-A (GB)
Title: Graft copolymers
Inventor: SARGENT EDWARD HENRY GEORGE
IPC: C08L67/06
Filed: 1963-11-06
Abstract: Graft copolymers are made by polymerizing a mixture of an unsaturated polyester resin and styrene, acrylonitrile, methyl acrylate or methacrylate, trichloroethylene or a mixture of one or more thereof upon polychloroprene, a butadiene/styrene copolymer or natural rubber. The unsaturated polyester is preferably derived from maleic, fumaric or itaconic acid and ethylene, diethylene or propylene glycol, with or without phthalic, isophthalic, tetrachlorophthalic or succinic acid.  The graft polymerization may be carried out in bulk or emulsion. The example describes polymerizing a mixture of styrene and a polyester derived from maleic, isophthalic and tetrachlorophthalic acids and propylene glycol upon polychloroprene with the use of a benzoyl peroxide/amine catalyst system.  The product is a block having good electrical insulation properties.
Patent GB-1534537-A (GB)
Title: Fluid metering and mixing devices
IPC: G05D11/00
Filed: 1975-10-24
Abstract: 1534537 Mixing apparatus ECONOMICS LABORATORY Inc 24 Oct 1975 43914/75 Addition to 1368523 Heading B1C [Also in Division F1] Apparatus for dosing a primary liquid flow with metered quantities of an additive comprises a housing 1 with inlet and outlet openings 7, 6 for primary liquid, piston means 10 within the housing adapted to be operated by the flow of primary liquid and having an axial passage 15 therethrough, which passage is adapted to be closed by valve means 13 when the piston is at the inlet end of the housing or moving under fluid pressure towards the outlet end and to be opened when the piston is at the outlet end or returning under spring 12 pressure towards the inlet end, and additive pumping means 25 adapted to be operated by the reciprocating movements of the piston 10 the pumping means 25 discharging through a conduit 33 either into an outlet conduit 8 for the primary liquid or (Fig. 2 not shown) into the outlet end of the housing or (Fig. 3 not shown) into an inlet conduit for the primary liquid. As shown in Figure 1, the valve means 13 comprises a cup shaped member 14 having a flange 16 forming the valve seat. A platelike bridge member 18 is secured to the piston 10 by devices 19, 20 and is also secured to the piston 29 of the additive pumping device 25. A pair of spacer elements 21, 22 extending through the bridge member 18 are attached to the cup member 14. Commencing at the closed position shown, a first fluid under pressure enters from conduit 9 and the piston 10 is moved upwardly against the pressure of a spring 12. Fluid above the piston is forced outwardly through conduit 8. The piston 29 during this movement draws fluid into the pumping means 25. When the spacers 22 strike the top of the housing 1, the valve 13 is opened and fluid from below piston 10 flows through passage 15. In this condition, spring 12 forces the piston 10 downwardly, the valve 13 being held open by a spring 23. During the downward movement, fluid from the pumping means 25 is forced along the conduit 33. At the bottom of the downward movement, fingers 24 force the valve means 13 to close again. In an alternative embodiment (Fig. 4 not shown) two pumps for two separate additives are shown one of which discharges into the inlet conduit and the other into the outlet conduit. The apparatus is stated to be applicable to the mixing of liquids or gases or gases with liquids.
Patent GB-1503398-A (GB)
Title: Modular underwater well platform supporting system
IPC: E21B15/00
Filed: 1975-10-24
Abstract: 1503398 Offshore drilling platforms; boring earth &c. N A NELSON 24 Oct 1975 43927/75 Headings E1F and E1H After an exploratory well has been drilled and a conductor pipe 24 installed, a modular component 32 of a base of an offshore platform is mounted on the conductor 24 and this modular component 32 has a plurality of connecting points 40 so that spacer frames 50 and further modular components 32 may be connected thereto to extend the base of the platform in a direction determined by the results of drilling. Once the base, comprising components 32 and spacer frames 50 has been built the remainder of the support structure and the deck of the platform is built thereon. Each modular component 32 comprises a space frame 38 carrying female coupling points 40 for the reception of male coupling members 58 of a spacer frame 50. After the first modular component 32 has been installed a space frame 50 having a second modular component 32 attached to one end is lowered down on guide wires 48. A second conductor pipe 24 is then installed with the second modular component 32. This process is repeated until the base of the platform is completed whereafter the platforms support structure is may be installed on top of the support structural members onto the base, using guide parts 46. The deck of the platform may be located below or above the water surface. Alternatively a "jack-up" platform may be intsalled on top of the support structure (Fig. 15 not shown).
Patent GB-1032357-A (GB)
Title: Heat sensitive copy-sheet materials
IPC: G03C1/52
Filed: 1962-11-21
Abstract: 1,032,357. Thermographic materials. MINNESOTA MINING and MANUFACTURING CO. Nov.21, 1962 [Nov . 21, 1961], No. 44028/62. Heading G2C. A heat-sensitive copy sheet structure of the visually chemically reactive type contains as the chemical reactants an aromatic N-nitroso-amine, a non-tertiary aromatic amine, and an aromatic hydroxy azo coupler. The reactants may be disposed in intimate uniform juxtaposition in a single layer or in two adjacent layers which may be coated one above the other on a single support with part of the reactants in one layer and the remainder in the other. Alternatively the structure may comprise two sheets in face-to-face contact, a first or printing sheet having a surface coating containing a non-tertiary aromatic amine and the other or image sheet having a surface coating of an aromatic N-nitroso-amine and an aromatic hydroxy azo coupler, the image sheet preferably also containing a white pigment such as titanium dioxide Thermographic exposure may be effected by "front" or "back" printing. The supports may be of paper or polyester film and the chemical reactants may be applied in vinyl polymer coatings. The sheets should be protected from U-V during storage and if desired during exposure also with the use of a U-V filter. Storage of the sheets under high humidity conditions results in images of increased colour intensity and contrast on exposure.
Patent GB-1498690-A (GB)
Title: Methods of fabricating headed-shank parts
IPC: B21K1/46
Filed: 1975-10-27
Abstract: 1498690 Making bolts and rivets GORKOV PROIZVODSTVEN - KONSTRUKTOR OBIEDINENIE NORMAL 27 Oct 1975 [1 Nov 1974] 44045/75 Heading B3A A headed bolt or rivet is made from an oxalate coated billet of two-phase titanium alloy by cold-forming a shank on the billet, heading the remainder of the billet (Fig. 3), and then rolling the shank and rolling a radius between the head and shank. The shank forming and heading operations are performed with a billet deformation rate of between 0À5 and 1 m/s. In the case of a hexagon-headed bolt Fig. 9, the shank additionally has a thread rolled on it at a speed of 16 to 20 r.p.m. in 0À5 to 1 sec. The finished bolt, which may be produced from an alloy of Al 3À2%, Mo 5À2%, Va 4À5%, balance Ti, has a tensile strength of 100 Kgf/mm<SP>2</SP>.
Patent GB-1132724-A (GB)
Title: Nickel-chromium-iron alloys
Inventor: WHITE CAROL HENRY
IPC: C22C19/05
Filed: 1966-10-03
Abstract: 1,132,724. Ni-Cr-Fe alloys. HENRY WIGGIN & CO. Ltd. Sept.26, 1967 [Oct.3, 1966], No.44114/66. Heading C7A. Nickel-chromium-iron alloys comprise: - C 0À02 - 0À1% Al 0À25 - 0À75% B 0À003 - 0À02% Cr 11 - 16% Mo 4 - 7% Ni 35 - 45% Nb 0À3 - 0À8% Ti 2 - 3À5% optionally Zr up to 0À1% the balance, apart from impurities (e.g. up to 0À5% each of Mn and Si), being iron. Niobium may be partially replaced by tantalum on an atom for atom basis up to a maximum content of tantalum of 0À1%. The alloy may be solution treated at 1040 - 1080C. and aged in a single step, at 700-760C. or in two steps at 740-780C. and then at 675-720 C. The alloys may be used for rotor discs in gas turbines.
Patent GB-921244-A (GB)
Title: Improvements in or relating to vending machines
Inventor: SILVER DENNIS STANLEY
IPC: G07F11/26
Filed: 1960-12-30
Abstract: 921,244. Coin-freed vending apparatus. FARROW & JACKSON Ltd. Dec. 30, 1960, No. 44817/60. Class 27. A vending machine has a pivoted bin 2 into which articles are delivered one by one by an electrically driven conveyer and the bin is held in closed position by a pair of latches 8 pivoted at 9 on brackets 10 on the bin and having noses 13 which engage under the edges of apertures 11 in a base plate 12. A star wheel 5 is mounted on a drive shaft 1 for the conveyer and, after taking up a certain amount of lost motion that allows almost complete delivery of the article, a tooth 5a on the wheel engages a flange 6 on a rod 7 pivoted at its ends to the latches. The further motion to complete delivery causes the rod to swing the latches clear of the edges of the apertures and, by engagement of the flange 6 with a flange 17 of a spring-loaded rod 16, to move the flange 17 clear of a leaf spring 19 that springs up to open a switch 20 and stop the conveyer motor. The bin can then be swung about its pivot 3 to enable removal of an article and as the flange 6 moves clear of the tooth 5a the spring 14 returns the flange 17 and the rod 7 to the left. To obtain another article, the bin must be closed once more so that the flange 17 depresses the spring 19 to close the switch 20, the latches 8 snap into the apertures 11 and the flange 6 lies ahead of a succeeding tooth 5a. The conveyer may comprise a helical rail along which articles are pushed by radial vanes on the drive shaft, as described in Specifications 921,241 and 921,243.
Patent GB-972237-A (GB)
Title: Improvements relating to glass melting
Inventor: GELL PHILIP ANTHONY MAUNSELL
IPC: C03B5/027
Filed: 1960-12-31
Abstract: 972,237. Glass-melting furnaces. ELEMELT Ltd. March 27, 1962 [Dec. 31, 1960], No. 44890/60. Heading F4B. [Also in Division H5] To avoid difficulties in connection with the high voltage necessary across electrodes to melt a large mass of glass, alternating current is passed through a plurality of separate subordinate bodies of glass melt, and molten glass from these bodies is brought into confluence to form a main body constituting the required bulk supply, the number and size of the separate subordinate bodies of glass melt being such, in relation to the size of the main body, that the normal maximum requirement as to throughput can be met using less than the. total number of separate subordinate bodies of glass melt. In the furnace shown, three or more melting chambers 16 containing electrodes 19 are each connected by a duct 17 either directly or via a forehearth or refining chamber 18 containing electrodes 20 to a main chamber 10 containing electrodes 29. The lever 14 of molten glass and batch materials in the chamber 16 isabove the level 24 in the chamber 18 thus causing flow from chamber 16 to chamber 18 and over a weir, formed by the lower boundary of an opening 23, which prevents reverse flow from the main chamber 10 and also stops the normal flow if the feeding-in of new batch materials is discontinued. A gate 27 can also be lowered to restrict or stop the flow when required. In a modified construction (Fig. 3, not shown), the bottom wall 15 of the main chamber 10 is at a slightly higher level than the floor of the chamber 16 and reverse flow can be prevented and normal flow stopped only by closing the gate 27. In either arrangement each melting chamber 16 can be taken out of service in turn without affecting production. Specifications 835,201, 835,202, 835,204 and 835,205 are referred to.
Patent GB-959003-A (GB)
Title: Rectifier assemblies
Filed: 1962-11-28
Abstract: 959,003. Semi-conductor rectifier assemblies. CANADIAN WESTINGHOUSE CO. Ltd. Nov. 28, 1962 [Dec. 7, 1961], No. 4492/62. Drawings to Specification. Heading H1K. [Also in Division H2] A rectifier assembly is characterized by having a plurality of rectifiers mounted in a circle on an electrically-conducting base plate which acts as a common terminal for the rectifiers. In the single embodiment, described with reference to Figs. 1, 2 and 3 (not shown), a unit for one phase of a three-phase full-wave rectifier uses two circular base plates on each of which seventeen silicon diodes are mounted in a circle concentric with the plate. Each diode, which has a threaded spigot projecting through an untapped hole in its respective base plate, has a hexagonal portion on its casing (cathode) which fits between two coolant pipes soldered concentrically to the base plate and thereby prevents the diode from turning when its securing nut is tightened on the spigot. The first and second circular base plates and a third plate are assembled together in parallel planes. The anode lead of each diode on the first plate is connected through an individual fuse to the second plate and the anodes of the diodes on the second plate are similarly connected to the third plate, the diodes on any one plate thus being connected in parallel. Two rings of annular magnetic cores are mounted between the base plates, and each anode lead winds through two of these cores so that the current path to each diode is magnetically coupled to those of the two adjacent diodes. The symmetrical arrangement of diodes on the base plates and the magnetic coupling between them ensures uniform distribution of current between the diodes. The first base plate serves as the positive D.C. connection of the unit and the second plate serves as the A.C. connection from which a bus-bar is taken from the end of the unit through a central hole in the third plate which acts as the negative D.C. connection. In the three-phase rectifier three of these units are housed in a single cabinet with their associated equipment and a common supply for the recirculated coolant.
Patent GB-1282491-A (GB)
Title: Impact mowing apparatus
IPC: A01D34/83
Filed: 1969-09-12
Abstract: 1282491 Mowers OMARK INDUSTRIES Inc 12 Sept 1969 [16 Sept 1968] 45190/69 Heading A1F [Also in Division B3] A mower comprises a drive pulley 94 and main idler pulley 66 mounted on opposite ends of a cutter bar 54 having rear idler pulleys 56, and front idler pulleys 64 being pivotally mounted in a convex curve, e.g. on ground support runners 62, and locating a flexible cutter belt 32 retractable behind a guard member 60 attached at the leading edge of the cutter bar and below the path of cutting elements 30 on the belt 32 and extending parallel and adjacent said path. The cutter belt 32 is rotatably retained on the pulleys by a rail (80) Fig. 4 (not shown) extending downwardly from a top plate 78. The cutter elements 30 have roots (42) Fig. 5 (not shown), which are passed through the 'V' belt 32 and may be secured by a washer (48) and roll pin (50). Alternative fastenings are disclosed. The blades may be constructed so as to yield or break off when they hit an obstruction, and the front idler pulleys, which may have impellers 65 to stop clogging, may be mounted on spring biased swivel arms (98), Fig. 8 (not shown), which permit the belt and cutter elements to retract behind the guard member 60 and the retaining rail (80). A sharpening stone (84) Fig. 6 (not shown) may be brought into engagement with the underside of the blades. The belt may be tightened by urging the main idler pulley outwardly using a ram (70), Fig. 7 (not shown), having nitrogen and hydraulic fluid filled compartments.
Patent GB-1476330-A (GB)
Title: Process for fixing photographic material
IPC: G03C5/38
Filed: 1974-10-18
Abstract: 1476330 Photographic fixing baths CIBAGEIGY AG 18 Oct 1974 [18 Oct 1973] 45208/74 Heading G2C Imagewise exposed and developed photographic material in which the silver halide is predominantly silver iodide is fixed with an aqueous fixing bath containing at least one compound capable of forming soluble silver complexes e.g. ammonium thiosulphate, and at least one of the following solvents: N-methylphyrrolidone, E-caprobactam, tetramethylurea, phosphoric acid trisdimethylamide, N-methylmorpholine, dimethylformamide, dimethylsulphone, and acetonitrile.
Patent GB-1100582-A (GB)
Title: Cartons
IPC: B65D5/30
Filed: 1963-11-15
Abstract: 1,100,582. Tray-like cartons. R. J. DAIN. 16 Nov., 1964 [15 Nov., 1963], No. 45220/63. Heading B8P. A cardboard carton is made from a single blank, the end panels 13, 14 of which are slotted 17, and the flaps 34, 35 on the sides 18, 20 pass through the slot in their adjacent end panel, and are bent towards their own side panels after passing through the slot when the blank is erected. The side panels 18, 20 are slotted, 38, to receive and lock the ends 37 of the flaps. The carton top is closed by two panels 23, 24. An extension 27 of the end panels 13, 14 is folded over and encloses the flaps 35.
Patent GB-1160572-A (GB)
Title: Reactive Metallised Monoazo Dyestuffs
Inventor: HUNTER JAMES STUART
IPC: C09B62/095
Filed: 1965-10-28
Abstract: 1,160,572. Reactive metallized monoazo dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 14 Oct., 1966 [28 Oct., 1965], No. 45683/65. Heading C4P. The invention comprises the dyes of formula wherein R is a C 1-4  alkyl radical, the ring I contains a Cl, NO 2 , SO 3 H or C 1-4  alkylsulphonyl substituent and optionally other substituents, the ring II may be further substituted, the ring III may be further substituted other than by a metallizable group in oposition to the N atom, ring IV may be substituted by a C 1-4  alkyl radical and the naphthalene ring may be further substituted provided that rings I, II, III and IV and the naphthalene ring together contain a single SO 3 H group. The dyes are prepared by condensing an appropriate mixed Cr complex containing an -NH 2  group in ring IV with a 2,4-dichloro-6-alkoxy-triazine. The mixed Cr complexes are obtained by the usual processes. The dyes may be used to colour leather and cellulose, polyacrylonitrile, polyurethane and natural and synthetic polyamide fibres, in particular wool, in green shades.
Patent GB-1121690-A (GB)
Title: Improvements in or relating to teleprinter receiving circuit arrangements
IPC: H04L12/02
Filed: 1966-10-13
Abstract: 1,121,690. Telegraphy. SIEMENS A.G. 13 Oct., 1966, No. 45756/66. Heading H4P. In a telegraph receiver in which the received signals comprise information and filler signals, the latter filling any pauses in the information signal sequence, means is provided for preventing the filler signals from reaching the receiver output. The received signals pass via a one character delay and a gate to the teleprinter. They also pass to a circuit which recognizes the filler signals, e.g. letter- and figure-shift, and if there is a succession of two or more identical filler signals the gate is inhibited to prevent all such filler signals except the first from passing to the teleprinter.
Patent GB-1470664-A (GB)
Title: Spacecraft thruster devices
IPC: F02K9/68
Filed: 1974-08-02
Abstract: 1470664 Rocket propulsion plant DEFENCE SECRETARY OF STATE FOR 2 Aug 1974 [1 Oct 1973] 45867/73 Headings F1J and F1L A thrust unit for spacecraft comprises a reaction chamber 3 to which propellant is supplied via control valve 1 and a capillary injection tube 7 surrounded by an outer tube 2 sealingly connected to the valve 1. At its upstream end tube 7 is spaced from tube 2 by a collar 11 and braze material 12 forming a low thermal resistance path to a flange 8 acting as a heat sink. Flange 8 is brazed to tube 2 and is attached to valve 1 by screws 9, a sealing gasket 10 being provided. The downstream end of tube 7 may be supported by dimples in tube 2 or by ceramic balls. Tube 7 may be of platinum, stainless steel or nickel alloy. The propellant may be liquid hydrazine.
Patent GB-1526823-A (GB)
Title: Photovoltaic devices
IPC: H01L31/072
Filed: 1975-11-06
Abstract: 1526823 Photovoltaic cells WESTERN ELECTRIC CO Inc 6 Nov 1975 [8 Nov 1974 16 June 1974] 46032/75 Heading H1K A photovoltaic cell, Fig. 1, comprises an N-type light-transmissive c.d.s. layer 13 on a P-type InP layer 11 forming a heterojunction therewith, a light-transmissive electrode 16, e.g. of indium, and means 12, 14, 15 for establishing electrical contact with the InP layer 11. Preferably layer 12 is Au/Zn/Au alloy electrodeposited on a #111# oriented InP wafer which is cut from the single crystal grown by liquid encapsulation technique, and before a copper block 15 is secured to the layer 12, the latter is annealed in forming gas (N 2 +H 2 ). Vapour deposition of N-type c.d.s. on the InP substrate is carried out at pressures less than 10<SP>-5</SP> torr, the temperature of the substrate being maintained at 200-250‹ C. during the deposition. In a method of making a solar cell, Figs. 5, 6 (Fig. 7, not shown), a polycrystalline InP film 51 is either flash evaporated or grown by the chemical vapour deposition method on, e.g. an etched galvanized steel substrate 15 containing zinc, stainless steel or copper, this being followed by chemical vapour deposition or evaporation of N-type c.d.s. on the InP film 51. A thin glass sheet 58 is secured to the c.d.s. layer 53 by means of a transparent synthetic resin adhesive 57 after vapour deposition of electrical contacts 56 typically of chromium. An antireflection coating 59 is provided. It is stated that thermal annealing, preferably between 550‹ and 600‹ C. for a period of about 15 minutes, in an inert atmosphere containing traces of a reducing gas, e.g. 15% H 2 +85% N 2  improves the efficiency of the solar cell to 14% without unduly increasing the resistivity of c.d.s.
Patent GB-1382289-A (GB)
Title: Circular knitting machines
IPC: D04B15/76
Filed: 1972-10-06
Abstract: 1382289 Knitting-machines ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 6 Oct 1972 [14 Oct 1971] 46087/72 Heading D1C In a circular machine plush loop sinkers are selectively prevented from moving radially inwards to the plush loop-forming position by blocking members in the needle tricks. The members may be constituted by the needles or separate elements mounted in the tricks. In the embodiment shown sinkers are prevented from advancing by raising selected needles so that surface 42 is aligned with a lateral butt 43 of the sinker. The sinkers are pivoted about the butt 43 by springs 56 so that a projection 59 engages the edge of sinker ring 47 preventing further sinker movement. The remaining sinkers are advanced by the springs, when sinker cam ring 50 allows. To select the needles, needle selector jacks 20 are divided into two groups by a pattern drum and move along tracks 23a, b. Selected needles are thus raised higher than the remainder along path 36c, so that the butts 42 are opposite sinker butts 43.
Patent GB-1431255-A (GB)
Title: Process for the preparation of trimethyl-p-benzoquinone
IPC: C07C46/08
Filed: 1974-10-24
Abstract: 1431255 Trimethyl - p - benzoquinone RHONE-POULENC SA 24 Oct 1974 [25 Oct 1973] 46090/74 Heading C2C Trimethyl-p-benzoquinone is prepared by reacting 2,3,6-trimethyl phenol with oxygen or with an oxygen-containing gas in the presence of a complex cobalt salt of the general Formula (I) in which R<SP>1</SP> and R<SP>2</SP> are C 1 -C 4  alkoxy radicals and R<SP>3</SP> is a divalent C 2 -C 15  hydrocarbon radical, in an inert organic solvent. R<SP>3</SP> may be an alkylene radical, a cycloalkylene radical or an arylene radical. Suitable solvents are, for example, aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, and preferably linear or cyclic carboxamides or aliphatic or aromatic nitriles.