baber/WOPTO huggingface dataset:
Patent GB-997546-A (GB)
Title: Method and apparatus for inserting tools in underwater wells
IPC: E21B7/128
Filed: 1963-12-20
Abstract: 997,546. Boring earth etc.; well etc.; hook fastenings. CALIFORNIA RESEARCH CORPORATION. Dec. 20, 1963 [Jan. 9, 1963], No. 50485/63. Headings E1F and E2A. [Also in Division F2] A method of inserting a pipe string 52, including any tool such as a drill bit attached thereto, into an underwater well, from a vessel comprises connecting guide means 64, 65 between the well and vessel, connecting a pair of separable guide arms 60, 61 to the lower end of the string, lowering the string along the guide means, inserting the lower end of the string into the well, and disconnecting the guide arms from the string. The arms are telescopically adjustable within pipes 92, 91 fixed to angles 84, 83 adapted to engage strings of different diameter. The angles are forced into contact with each string by chains 89, 189 each having one end held in notches 122, 123 on locking means 105, 205. The chains are tensioned by tightening nuts 111, 110 to move the locking means along tracks 106, 206, springs 114, 115 maintaining the tension. The other ends of the chains hook over the ends 25, 26 of a bar 86 rotated by a lever 87, the arrangement being that when the lever is held vertically by a latch 88, the chains are held by the ends of the bar. When the lower end of the string enters the well a portion 103 of the well lifts a lever 100 connected to the latch to free the lever 87 and the chains to permit the arms to separate and fall to position shown dotted. In a modification, the latch may be operated from the vessel by a line. The chains may be replaced by cables.
Patent GB-1286283-A (GB)
Title: Arrangement for the supervision of direct currents
Inventor: SCHNABEL HANS
IPC: H02H3/087
Filed: 1969-10-16
Abstract: 1286283 Protective arrangements; battery charging systems STARKSTROM-ANLAGENBAU ERFURT VEB 16 Oct 1969 50951/69 Headings H2H and H2K A protective arrangement for a direct-current circuit 1, e.g. a charging circuit for an accumulator, comprises magnetic cores 2, 3 with direct current windings carrying the circuit current, windings 4, 5 connected in series with a rectifier bridge 9 to a square wave pulse generator 8, and feed-back windings 6, 7 connected through a variable resistor 12 to the rectifier bridge 9. The feed-back windings 6, 7 normally assist the D.C. windings which may be formed by the circuit 1. Under normal load conditions, the voltage drop across resistors 11, 12 is high and a device 13 is arranged to give no output to a relay circuit 14, 15. When the current drops or reverses, the voltage across the resistors 11, 12 falls and the device 13 provides an output to the relay circuit.
Patent GB-1365420-A (GB)
Title: Printed circuit board connector
IPC: H01R12/58
Filed: 1972-11-06
Abstract: 1365420 Edge connectors ITT INDUSTRIES Inc 6 Nov 1972 [17 Nov 1971] 51028/72 Heading H2E An edge-connector (Fig. 1) for a printedcircuit board comprises a mounting member 12; electrical contacts 16 each having a shouldered mounting portion 44 and a bent bifurcated spring contact portion 22; and a housing member 62 having slotted dividing walls 94 and lips 74. The connector is assembled (Fig. 2) by inserting the contact mounting portions 44 into holes 14 of the mounting member 12 and placing the housing 62 with its ridges 78 abutting the contact free ends 34. Securing the housing 62 to the mounting member 12 spreads and preloads the contacts, and the slots 112 in the walls 94 trap the shouldered mounting portions 44. Thus during assembly the contacts are not subjected to stresses greater than those which occur in use. The lips 74 of the housing 62 protect the tips of the contacts 16, and the bevelled surfaces 76 guide the printed-circuit board into the slot 72 (Fig. 4, not shown). The surface 98 limits the depth of insertion of the board.
Patent GB-1526139-A (GB)
Title: Combustion apparatus incorporating gas and oil burners
IPC: F23C1/08
Filed: 1976-12-10
Abstract: 1526139 Liquid and gaseous fuel fixed combustion apparatus NATIONAL AIROIL BURNER CO Inc 10 Dec 1976 [11 March 1976] 51660/76 Headings F4B and F4T Combustion apparatus located in a furnace wall 10 comprises a refractory burner block assembly including a lower block 15 and an upper block 16 formed with a plurality of venturi-shaped openings 40, 42, on oil burner assembly 56 extending upwardly into the central venturi opening 42, and a plurality of vertical gas burners each extending upwardly into a respective one of the venturi openings 40, 41 on each side of the central opening 42. Further gas burners 53a extend into the central opening 42 on either side of the oil burner 56. Combustion air is supplied to the inlet end of the venturi openings from a space 17 in the lower block 15, the space 17 receiving an adjust-  able supply of air from outside the furnace through an air register 25. The gas burners are supplied with fuel from a pair of manifolds 50 which are located within the space 17 and are in turn supplied with fuel through inlet pipes 46. The oil burner assembly 56 is detachably connected to a manifold 58 located outside the burner block assembly and to which oil and steam are supplied via pipes 61 and 62 respectively. The air register 25 comprises a plate 28 which has a plurality of air admission openings 34 with angularly disposed edges 35 and carries a horizontally slidable plate 36 provided with air admission openings 39. The plate 28 is pivotally connected to the outside casing 11 of the furnace wall 10 to allow access to and/or removal of the oil and gas burner assemblies. The lower block 15 is held in position by inwardly extending projecting portions 23 of the outer casing 11. In use flames from the burners extend upwardly from the openings 41, 42 and along the inner face 12 of the furnace wall 10. The gas or oil burners can be operated alone or together.
Patent GB-1376931-A (GB)
Title: Electrostatic recording member
IPC: G03G5/02
Filed: 1971-11-09
Abstract: 1376931 Electrostatic recording member GENERAL CO Ltd 9 Nov 1971 52048/71 Heading B2E An electrostatic recording member comprises a layer of paper which has been subjected to a resistance lowering treatment and a recording layer having a surface resistivity of 10<SP>12</SP> # cm. or more and composed of a film of resin binder in which is dispersed an inorganic pigment or a metal soap, at least 30% by weight of the binder being a fatty acid modified epoxy resin. The epoxy resin may be esterified with a drying oil, e.g. tung oil, a semi-drying oil, e.g. colza oil, or a non-drying oil, e.g. castor oil and coconut oil. The degree of esterification is preferably from 30% to 90%. The resin binder may also contain polyvinyl chloride, an acrylic or methacrylic ester, a cellulose ester or ether or chlorinated rubber. Suitable pigments are calcium carbonate, clay, titanium oxide and mica, and suitable soaps are barium and calcium stearates and palmitates. The weight ratio of pigment or metal soap to binder is preferably 1:1: to to 1:5.
Patent GB-1037850-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: JAMES EMRYS GWYNNE
IPC: H01L29/78
Filed: 1964-12-23
Abstract: 1,037,850. Transistors. ASSOCIATED SEMICONDUCTOR MANUFACTURERS Ltd. Dec. 23, 1964, No. 52233/64. Heading H1K. A transistor device comprises a high resistivity semi-conductor body of one conductivity type with two spaced surface regions of low resistivity opposite type, a dielectric layer bearing two spaced conductive layers 8, 9 overlying the space between the two regions. The arrangement provides a field effect transistor with two gate electrodes the second of which acts as a screen gate and reduces the output capacitance. In an embodiment, a boron doped 12 ohm/cm. P-type silicon body is covered with an oxide layer by heating in wet nitrogen, and phosphorus is diffused in a photolithographic process to provide two N + regions 2, 3 spaced 20 Á apart. Aluminium is evaporated on to provide the contacts, the gate contacts 8, 9 being etched to provide a separating gap of 1 Á. In a modification a further N + region is provided under the gap between the two gate electrodes and the dielectric layer may also comprise a gap over this region. This arrangement operates in the enhancement mode; a thin N-type layer may be provided between the two N+ regions permitting operation in the depletion mode. Linear or circular and annular geometry may be used for the device.
Patent GB-1517346-A (GB)
Title: Gas powered motor
IPC: F01B13/06
Filed: 1975-06-13
Abstract: 1517346 Compressed gas engine MIDLANDROSS CORP 13 June 1975 [27 June 1974]  52319/77 Divided out of 1517345 Headings F1M and F1S [Also in Division F2] A CO 2 -driven gas motor has a housing 90 and radially arranged cylinders 22 each with a piston connected (in all but one case) by rods 71 to a collector member 58 freely rotatable on a crankpin 54 (axis Z). The pistons and/or the connecting rod ends are resilient so that a snap fit between them is attained whereas the rods 71 are prevented from radially outward movement from the collector member 58 solely by the use of bulbous ends fitting in the correspondingly shaped recesses. CO 2  is distributed by a rotary valve 32 turned by the left hand end of the crank-pin 54.
Patent GB-1446770-A (GB)
Title: A crossover between two glass waveguides
IPC: G02B6/43
Filed: 1973-11-12
Abstract: 1446770 Bonding glass waveguides WESTERN ELECTRIC CO Inc 12 Nov 1973 [13 Nov 1972] 52412/73 Heading C1M Two glass waveguides are bonded to each other and to a glass substrate by applying energy to raise the waveguides and substrate to a temperature between the transformation and softening temperatures of the waveguides and/ or substrate. As shown a recessed ram 26 is employed. The ram is heated electrically to provide the required heat and applies pressure through a complaint member 24. Vibrating energy from an ultrasonic oscillator may be applied to the ram to provide additional energy to the bond region.
Patent GB-1150497-A (GB)
Title: Process for making Carbon Black Feed from Hydrocarbon Oils
Inventor: ROBERTSON WARREN DOUGLAS
IPC: C09C1/50
Filed: 1967-11-17
Abstract: 1,150,497. Carbon black feedstock. ESSO RESEARCH & ENG. CO. 17 Nov., 1967, No. 52493/67. Heading C5E. An aromatic carbon black feedstock is prepared from a hydrocarbon oil, e.g. a gas oil, by catalytically cracking the oil at high severity (i.e. converting at least 55% to gas, and to gasoline of 430‹ F. end point), fractionating the cracked products and recovering a 650‹ F. + bottoms fraction, vacuum distilling this fraction under a pressure below 100 mm. of mercury and recovering a fraction boiling between 700‹ and 1050‹ F. This product has a U.S. Bureau of Mines Correlation Index (BMCI) of at least 130. The empirical formula for calculating the BMCI is given. A fluidized bed silica alumina catalyst involving catalyst recycling is described, although fixed or moving beds may be used, and the initial oil is preferably preheated, cracking taking place at 850‹ to 1000‹ F. A 430‹ to 650‹ F. fraction from the fractionator, and an overhead fraction (B.R. 650‹ to 850‹ F.) from the distillation tower may be recycled to the catalytic reactor.
Patent GB-1223624-A (GB)
Title: Compositions suitable for forming polyurethane-urea cellular coatings
Inventor: MITCHELL ANDREW III
IPC: C08G18/10
Filed: 1968-11-06
Abstract: 1,223,624. Cellular polyurethane-ureas. E. I. DU PONT DE NEMOURS & CO. 6 Nov., 1968 [6 Nov., 1967], No. 52582/68. Headings C3C and C3R. [Also in Division B2] A storage stable, one-pack composition suitable for forming polyurethane-urea cellular materials comprises a liquid isocyanate terminated polyether or polyester prepolymer having dispersed therein a substantially stoichiometric equivalent amount of an aliphatic or cycloaliphatic diamine carbamate. On heating the free diamine is released from the carbamate with the simultaneous production of carbon dioxide which foams the reaction mixture. Preferred carbamates are those derived from ethylene diamine, hexamethylene diamine, decamethylenediamine, a diaminocyclohexane or p,p<SP>1</SP>-diaminodicyclohexylmethane. Volatile liquids, silicone surfactants and pigments may be added to the composition.
Patent GB-1202577-A (GB)
Title: Phenolic moulding composition
IPC: C08K3/34
Filed: 1967-11-21
Abstract: 1,202,577. Phenolic resin compositions. ARMSTRONG CORK CO. 21 Nov., 1967 [21  Dec., 1966], No. 52875/67. Heading C3R. A moulding composition comprises a phenol formaldehyde resin and, as filler, halloysite clay. The resin may be a novolak or resitol and may constitute 10-90 weight per cent of the composition and the clay 10-75%. Other constituents may be up to 10% of a curing catalyst, e.g. lime, up to 10% of a lubricant, e.g. calcium stearate, up to 5% of a colorant, e.g. carbon black and another filler, e.g. wood flour. The composition may be moulded into screw caps for glass jars.
Patent GB-1300596-A (GB)
Title: Process for the manufacture of enzyme-containing granules
Inventor: GRIMM DIETER
IPC: C11D3/386
Filed: 1970-11-06
Abstract: 1300596 Enzyme-containing granules KNAPSACK AG 6 Nov 1970 [19 Nov 1969] 52928/70 Addition to 1214234 Heading C5D In a process for producing enzyme-containing granules according to Specification 1,214,234 wherein an aqueous solution or suspension of a cellulose ether is sprayed on to a dry blend consisting of a hydratable, anhydrous or partially hydrated alkali metal or ammonium salt of an inorganic or organic acid and a powdered enzyme and wherein the whole is granulated with thorough agitation while effecting the spraying step, the improvement comprises using the aqueous solution or suspension of said cellulose ether with a proportion of water therein which is sufficient to effect hydration of between 93 and 98%, preferably 96%, of the alkali metal or ammonium salt present in the finished granules.
Patent GB-1160458-A (GB)
Title: Burner.
Inventor: OOSTERHOUT ADRIANUS JOHANNES T
IPC: F23D14/26
Filed: 1967-11-23
Abstract: 1,160,458. Gas burners. A.S.W. APPARATENFABRIEK N.V. 23 Nov., 1967 [5 Dec., 1966], No. 53308/67. Heading F4T. A gas burner comprises a gas distributing chamber 10 supplied with gas via a pipe 2, the gas passing from chamber 10 through a main chamber 13 to main burner ports 5 and via orifices 16, 17 and chambers 14, 15 to auxiliary burner ports 8 and bridging burner ports 9, the main burner ports 5 being formed in a ridge 4 in an otherwise flat burner top surface 3 and the orifices 16, 17 being formed in parallel vertical walls 11, 12. The burner ports 8, 9 are formed in grooves 7 in the burner side walls 6, which walls diverge towards their base. The burner is formed from two sheets of a suitable material welded together. Other constructions also using two sheets of material are illustrated.
Patent GB-1487628-A (GB)
Title: Method of and apparatus for knotting two counterdirectionally extending yarn ends by a fisherman's knot
IPC: B65H69/04
Filed: 1974-12-11
Abstract: 1487628 Knotting STROJTEX STROJIRNY TEXTILNIHO PRUMYSLU NARODNI PODNIK 11 Dec 1974 [21 Dec 1973] 53660/74 Heading D1C Yarn ends 4, 5 are joined by a fisherman's  knot by crossing them over each other by means of crossing arms 27 and forming loops on rotary bills 7, the yarn ends being braked outside the bills by braking arms 25 associated with the arms 27, stripping the loops from the bills by a tightening fork 34 while the yarn extremities, suitably defined by cutting blades on the bills, are held clamped on the bills to form loose partial knots as shown in Fig. 13 which are brought together and tightened by the further action of the fork 34, the fork being formed with lateral channels 35 disposed between the bills 7 and arms 25 to engage the respective yarn ends separately and with an intermediate channel 36 which engages both yarn ends between the partial knots, the bottom of channel 36 being lower than the bottoms of the channels 35 so as to disengage from the yarn ends when their extremities are released from the bills and thereby allow tighter knotting. The arms 25, 27 are operated by the pivoting of segments 20 under the action of a pull rod 22, the segments having drivers 17, 19 which turn a worm to effect rotation of the bills through gears. The pivoting of the segments also serves to lift the fork 34 through levers 38. 45, the lever 38 being spring loaded to ensure constant tightening force.
Patent GB-1579408-A (GB)
Title: Disazo compounds containing the oxadiazole residue and their use as pigments
IPC: C09D11/02
Filed: 1977-12-29
Abstract: Bisdiazotisation of 2,5-bis(4'-aminophenyl)-1,3,4-oxadiazoles, which may be substituted in the phenyl moieties, and coupling onto 2 mol equivalents of one or more coupling components that are free of water-solubilising groups produces pigments having a clean hue, high colour strength, good dispersibility, good lightfastness, high resistance to heat and chemicals, in particular solvents, and good migration fastness.
Patent GB-542473-A (GB)
IPC: H01B9/06
Abstract: 542,473. Cables. MOLLERHOJ, J. S. July 9, 1940, Nos. 11455 and 11456. Convention dates, May 20, 1939, and Aug. 28, 1939. [Class 36] An armoured cable, capable of sustaining internal pressure, of the type having two markedly curved parts joined by two substantially flat parts, has the flat surfaces supported externally by a continuous metal tape, formed with spaced transverse ribs, maintained in position by outer armouring or binding. In the example tapes 20 have sharp wave crests and wide troughs, the latter bearing against the flat parts of the cable upon the armouring 18. Secondary tapes 22, narrower and shallower, extend along the crests and support armouring strips or wires 24, which may, as shown, bear on the troughs of tapes 20 at their edges. In modifications the tapes 20 may be held by wires passing over the crests at an angle. In a further modification, the tapes 20 may be replaced by zigzag strips or by strips with flanges pinched out, upon the edges of which the binding wires 24 bear.
Patent GB-1176937-A (GB)
Title: Printing Ink Compositions
Inventor: WHEELER JOHN BROOKS
IPC: C09D11/02
Filed: 1966-12-05
Abstract: 1,176,937. Printing inks. UNION CARBIDE CORP. 5 Dec., 1966, No. 54323/66. Headings C3P and C3R. Wet printing ink compositions comprise a colourant, a binder therefor and dispersed in the wet ink 1 to 20 weight per cent, based on the wet ink, of dendritic particles of polyethylene having a density of at least 0À950 g./c.c., a melt viscosity of at least 50 c.p.s. and a melt index of not less than 6, said spherulites having an average particle size not greater than 50 microns in any dimension. The dendritic particles may be prepared by heating a mixture of polyethylene and a liquid which is a solvent therefor only at elevated temperatures and quenching the solution obtained, and preferably have an average particle size of 2-4 microns width and 6-10 microns length. The binder may be a resin solution or drying oil, e.g. hydrocarbon solutions of acrylic resins, non-drying phenolic and maleic modified resins, rosin, rosin modified phenolics, calcium resinate, esters of phenolic modified rosin and non-drying alkyds; and linseed, tung, chinawood and tall oils and oil modified alkyd, phenolic and maleic resins, preferably together with driers, e.g. naphthenates, linoleates, resinates, octoates, acetates, borates and oxalates of cobalt, manganese, cerium or lead. Examples describe printing inks comprising (1) dendritic spherulites, aliphatic hydrocarbon solvent, phenolic modified rosin esters and carbon black, together with (2, 3 and 6 to 11) chinawood oil, cobalt octoate, and triethanolamine.
Patent GB-1243261-A (GB)
Title: Improvements in or relating to liquid level detectors
Inventor: GRAINGER-ALLEN TERRENCE JOHN N
IPC: G01F23/16
Filed: 1968-02-05
Abstract: 1,243,261. Liquid level indication. TRADE & INDUSTRY, SECRETARY OF. May 2, 1969 [Feb. 5, 1968; Nov. 15, 1968], No.5688/68. Heading G1H. In a liquid level apparatus, in which the liquid level above or below a predetermined level is indicated, compressed gas is supplied through an inlet 10, a pressure regulator 11 and a chamber 12 to a tube 13 and the arrangement is such that when the lower end of tube 13 is located above a pulp/ froth interface 16 the pressure in chamber 12 falls to near atmospheric pressure and a needle valve 50 is adjusted to effect a pressure difference of approximately 2" water gauge pressure between chamber 12 and tube 18 but when the pulp/froth interface 16 rises above the end of tube 13 the pressure difference rises to about 3" water gauge to trigger a turbulent amplifier 19.
Patent GB-1077610-A (GB)
Title: Cloths washer machines
IPC: D06F37/20
Filed: 1965-12-23
Abstract: A washing machine comprises a water container and wash-spin tub mounted as a unit with a vertical rotational axis the unit being centred and supported by a number of upstanding rods with sufficient lateral flexibility to allow some gyratory movement of the unit, the rods having at one of their ends cup-members with springs and friction piston devices for checking vibrations in the unit.
Patent GB-1284779-A (GB)
Title: Magnetic tape duplicating apparatus
IPC: G11B5/86
Filed: 1969-11-10
Abstract: 1284779 Duplicating magnetic tape recordings MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 10 Nov 1969 [12 Nov 1968 13 Nov 1968 18 Jan 1969 30 Jan 1969 (2)] 54977/69 Heading G5R A master tape 3 having a high-frequency (e.g. video) track and a low-frequency (e.g. audio or control) track recorded thereon is wound on to a take-up reel 13 with its magnetic layer in contact with that of a slave tape 4 on to which the two tracks are then copied by the application of a first transfer magnetic field from a generator 15, the tapes are rewound on to their separate supply reels 1, 2, and the low-frequency track only is again copied on to the slave tape 4 during the rewinding, either by the application of a second transfer field from a generator 25, Fig. 4, or by means of a playback head 35 engaging the master tape 3 and an erase head 23 and a record head 34 engaging the slave tape 4, Fig. 9.
Patent GB-1430616-A (GB)
Title: Process for producing a reducing gas
IPC: B01B1/00
Filed: 1973-12-04
Abstract: 1430616 Reducing gas METALLGESELLSCHAFT AG 4 Dec 1973 [23 Dec 1972] 56239/73 Heading C5E A reducing gas which consists substantially of carbon monoxide and hydrogen and contains only a small amount of water vapour, carbon dioxide and methane, is produced by mixing hydrocarbons which under normal conditions are liquid and evaporable, with 0À02 to 0À1 standard cubic metre hydrogen per kilogram hydrocarbons and subjecting the resulting mixture to a hydrogenating desulphurization under superatmospheric pressure, adding water vapour to the mixture so that it contains from 1À0 to 1À6 kilogram water vapour per kilogram hydrocarbons, reacting the mixture in a one-part first gasification stage at a temperature of 350‹ to 550‹ C. in the presence of a catalyst which contains 35 to 70% by weight of nickel on a magnesium-containing support to produce a gas with a high methane content, this gas being then reacted further at from 850‹ to 1100‹ C. in a tubular reactor in contact with an indirectlyheated heat-resisting nickel catalyst containing 10 to 30% by wt. nickel on a support. The magnesium-containing support of the first mentioned catalyst may be magnesium silicate or magnesium spinel. Both stages may be carried out at 2 to 16 kg./sq. cm. pressure. Hydrogen for the desulphurization and for feeding to the first stage may be produced by subjecting a partial stream of the resulting product reducing gas to a shift conversion, e.g. in two stages, of carbon monoxide to carbon dioxide by treatment with water vapour, and subsequently scrubbing out the carbon dioxide.