baber/WOPTO huggingface dataset:
Patent GB-984083-A (GB)
Title: Process for the optical brightening of cellulose textile material and the brightenedmaterial
IPC: D06L/
Filed: 1962-10-12
Abstract: Cellulosic textile materials, e.g. cotton and regenerated cellulosic fabrics are optically brightened by impregnating them with the solution of a salt of at least one compound of the formula <FORM:0984083/D1-D2/1> in which A1, A2, A3 and A4 are hydrogen or aliphatic, cycloaliphatic, araliphatic, heterocyclic or monocyclic aromatic radicals or each pair A1 and A2 and/or A3 and A4 together with the amino nitrogen represent saturated heterocycles and X1 and X2 are halogen or hydroxyl, alkoxy, primary amino or secondary or tertiary amino groups having aliphatic, araliphatic, cycloaliphatic or aromatic nitrogen substituents which together with the nitrogen and if desired other hetero atoms may form saturated heterocycles, storing them for at least 15 minutes in a moist condition and then drying them.  A1, A2, A3 and A4 may be methyl, ethyl, propyl, isopropyl, normal, secondary or tertiarybutyl, hydroxyethyl, hydroxy propyl, methoxy ethyl, ethoxyethyl, methoxy propyl, ethoxy propyl, cyclohexyl, benzyl, pyrimidyl-(2), phenyl sulphophenyl, methyl sulphophenyl, dimethyl sulphonyl or chlorosulphophenyl groups or if A1 and A2 and/or A3 and A4 together with the amino nitrogen atoms form saturated heterocycles these may be pyrrolidine, piperidine or morpholine rings.  X1 and X2 may be chlorine bromine, hydroxy, methoxy, ethoxy, b -hydroxyethoxy, b -methoxyethoxy, b -ethoxyethoxy, amino, mono or bis-(methylol) amino, methylamino, ethylamino, propylamino, b -hydroxy ethylamino, b -hydroxypropyl amino, b -cyano ethylamino, carboxy methylamino, dimethyl or diethylamino, bis b -hydroxy ethylamino, bis b -hydroxy propylamino, trimethylol methylamino, N-methyl-N-ethylamino, N-methyl-N-b -hydroxy ethylamino, N-ethyl-N-b -hydroxy ethylamino, N-methyl-N-b -hydroxy-propylamino, N-ethyl-N-b -hydroxypropylamino, b , g -dihydroxy propylamino, N-methylcarboxy methylamino, 2-methoxy ethylamino, N-methyl-2-methoxy ethylamino, 2-ethoxy ethylamino, b -methoxy propylamino, cyclohexylamino, N-ethylcyclohexylamino, benzylamino, N-b -hydroxy ethyl benzylamino, N-b -cyanoethyl cyclohexylamino, phenylamino, o, m or p methyl phenylamino, 3, 5-, 2, 5- or 3, 4 dimethyl phenylamino, m or p methoxy, m or p ethoxy, m or p chloro, m or p bromo, m or p sulpho, m or p sulphamyl or m or p carboxyphenylamino, 2, 5 dimethyl-4-sulphophenylamino, 4-chloro-3-carboxy phenylamino, piperidino, morpholino or pyrrolidino groups.  The impregnation bath which may also contain sodium chloride may be maintained at 20 DEG -60 DEG C. and the impregnated material may be stored in the moist state at room or elevated temperatures while rolled up and covered with a plastic foil.
Patent GB-904356-A (GB)
Title: Improvements in and relating to screw drivers
IPC: B25B23/10
Filed: 1960-11-10
Abstract: 904,356. Screwdrivers. RUSSELL, L. E., and PECK, R. April 19, 1961 [Nov. 10, 1960], No. 38692/60. Class 61. A screw-holder forming part of a screwdriver comprises a tubular member 24 divided at one end to form four jaws internally shaped to take different diameters of screw heads and externally tapered, a tubular body 26 movable axially of the member 24 and effective on its external taper to close the jaws, the shank 27 of the screwdriver extending through the member 24 to engage the screw held by the jaws. As shown, the part 24 is externally screwthreaded to engage with a part 25 which is fast with one end of the tubular body 26, rotation of the latter causing closing of the jaws 20-23. The  screw-holder is associated with the screwdriver shank 27 by means of a spring- loaded ball 30 on a grub-screw engageable with a groove 29 in the shank. In a modification, the outer tubular member is manually slidable axially of the other tubular jaw-carrying member. The jaws, Fig. 9, are formed by two opposed, narrow slots 41, 42 and by two wider, opposed slots 43, 44, of which the slot 44 extends throughout the length of the jawcarrying member. The Provisional Specification describes also a screw-holder wherein the outer tube is moved axially of the jaw-carrying member by externally-operable cam means, latch means being provided for holding the driver in retracted position.
Patent GB-877497-A (GB)
Title: Improvements in or relating to derivatives of acetylenic carbinols
Inventor: MEHTA MINOO DOSSABHOY
IPC: C07D211/08
Filed: 1958-12-01
Abstract: The invention comprises compounds of the formula  <FORM:0877497/IV (b)/1> wherein R represents a C1-C10 alkyl group and R1 represents a C1-C4 alkylene group or R and R1 together with the carbon atom to which they are attached represent a cycloalkyl group, the preparation thereof by reacting a compound of the formula  <FORM:0877497/IV (b)/2> with an aromatic chloroformate or phosgene and treating the product in either case with ammonia; and pharmaceutical compositions (see Group VI) containing the products.  The products, which may be in optically active or racemic forms, have hypnotic properties. Phenyl chloroformate is prepared by reacting phenol and phosgene. Chloro-ethynyl-alkanols of the formula I above are prepared by reacting appropriate ketones with ethynyl magnesium bromide. According to the Provisional Specification, the compounds of the invention may be prepared by reacting compounds of the formula I above with potassium cyanate and trichloroacetic acid. Specification 836,280 is referred to.ALSO:Pharmaceutical compositions comprise compounds of the formula <FORM:0877497/VI/1> (wherein R represents a C1-10 alkyl group and R1 represents a C1-4 alkylene group or R and R1 together with the carbon atom to which they are attached represent a cycloalkyl group) with carriers.  Preparations may be in diverse forms; in particular, tablets.  Specification 836,280 is referred to.
Patent GB-1551561-A (GB)
Title: Transfer dyes and transfer printing process
IPC: C09B23/00
Filed: 1977-09-16
Abstract: The invention relates to a process for printing flat-surface structures made from synthetic man-made or regenerated man-made polymer materials, for example polyester, polyacetate and preferably polyacrylonitrile fibres, by transfer printing, by means of auxiliary carriers which are printed with printing inks or printing pastes using dyes of the formula I    <IMAGE>  (I)  wherein N IS 0 OR 1, R1 represents hydrogen, methyl, ethyl, propyl or butyl, branched or unbranched, while R1 together with the phenyl nucleus can form a 6-membered heterocyclic ring, R2 represents hydrogen, methyl, ethyl, propyl, branched or unbranched, cyanomethyl, cyanoethyl, hydroxyethyl, chloroethyl, phenyl or benzyl, substituted or unsubstituted, and R3 represents hydrogen, methyl, ethyl and nitro, or R1 and R2 together with the nitrogen atom to which they are attached form a 5- or 6-membered heterocyclic ring, in particular morpholine.
Patent GB-1364953-A (GB)
Title: Sintered permanent magnet materials
IPC: H01F1/11
Filed: 1972-08-22
Abstract: 1364953 Barium and/or strontium ferrites ROBERT BOSCH GmbH 22 Aug 1972 [1 Sept 1971] 39089/72 Heading C1J A sintered permanent magnet material comprises barium- and/or strontium ferrite, wherein in at least one sub-lattice of the crystal lattice the Fe<3+> are at least partially substituted by trivalent As, Sb or P or mixtures thereof, the resulting material having an oxygen deficit of no less than 0À5 oxygen atoms per substituted Fe<3+> ion. The ferrite may also contain Pb and Ca may replace part of the Ba and/or Si (also Pb if present). The material may be prepared by sintering in an oxidizing atmosphere a finely divided mixture of oxides of Fe and Ba and/or Sr or compounds of these metals which yield the oxides on sintering and at least one of As, Sb or P oxides or compounds yielding their oxides on sintering, heat-treating in an atmosphere (e.g. N2) whereby the sintered product releases oxygen and As, P, or Sb are in their trivalent state, finely grinding the product to single domain particle size and heat-treating in a non-oxidizing atmosphere (e.g. N). The examples describe the preparation of arsenic substituted barium ferrite and antimony substituted barium ferrite.
Patent GB-1126213-A (GB)
Title: Filaments of a synthetic polyamide
Inventor: THOMAS PETER RAYMOND
IPC: C08L77/00
Filed: 1965-09-14
Abstract: 1,126,213. Synthetic polyamide filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Sept., 1966 [14 Sept., 1965], No. 39122/65. Heading B5B. [Also in Division C3] A yarn comprises one or more undrawn polyamide filaments having molecular orientations exhibiting X-ray reflection patterns in which O i -O 0 >0À2, preferably >0À7. Even more preferably O i  is greater than zero. The yarn may comprise filaments of polyhexamethylene adipamide or of polyhexamethylene suberamide. The filaments may contain a finely divided nucleating agent dispersed therethrough and the proportion of the agent in the filaments may be at least 0À05% by weight and is preferably 0À5 to 1À5% by weight. The nucleating agent may be polymeric and organic and has an optical melting-point higher than the " melt holding temperature at spinning," e.g. at least 10‹ C. and preferably at least 30‹ C. above the melt holding temperature at spinning. The agent may comprise a polyamide or a copolyamide containing aryl linkages in the polymer chain, e.g. poly-(methylene) x  terephthalamide where x is an integer between 2 and 12, particularly 6 or 10. The agent may be a copolymer of polyhexamethylene adipamide and polyhexamethylene terephthalamide, preferably in equal proportions by weight. The yarn may be manufactured by incorporating the agent in a polyamide, melting the polyamide to form a melt in which the agent is uniformly dispersed, forcing the melt through a filtering medium, extruding the filtered melt through the orifices of a spinneret plate, quenching and solidifying the extruded liquid filaments by means of a gaseous cooling medium and winding up the solidified filaments. The agent and a minor portion of the polyamide may be dissolved in a mutual solvent, the agent and the minor portion of the polyamide coprecipitated therefrom, the solvent removed from the precipitate, the latter formed into a paste which is mixed with the remainder of the polyamide and the mixture melted and meltspun. The " optical melting point " of the nucleating agent is defined as the temperature at which the optical birefringence of a sample of the agent mounted on a heated glass slide is seen to disappear when the sample is viewed under a microscope. The " melt-holding temperature at spinning" is defined as the temperature at the base of the melt pool above the booster pump in a conventional meltspinning unit. The term " nucleating agent " is defined as a solid substance which when present in the form of particles less than 0À4 micron in diameter in the as-spun polyamide filaments, induces the formation and growth of a crystalline texture which does not exhibit in the polarizing microscope at the extinction position any discrete resolvable patterns characteristic of spherulites.
Patent GB-1109993-A (GB)
Title: Battery plaques or electrodes
Inventor: JOST ERNST MARIA
IPC: H01M4/26
Filed: 1965-09-14
Abstract: 1,109,993. Accumulator electrode. TEXAS INSTRUMENTS Inc. 14 Sept., 1965, No. 39227/65. Heading H1B. Accumulator electrodes comprise a sintered compressed layer of metal particles containing within its pores active solid nickel or cadmium hydroxide. They may be manufactured by (a) sintering a particulate metal layer to produce a grid of porosity greater than 95%, (b) filling the pores of this with molten nickel or cadmium nitrate and cooling, (c) dehydrating this solution, (d) treating the nitrate with an alkali metal hydroxide to convert it to hydroxide, and (e) compressing the whole body to a grid porosity less than 95%. In a particular embodiment nickel particles are sintered at 1000‹ C. and the product dipped in fused Cd(NO 3 ) 2 .4H 2 O at 70‹ C. The nitrate is then dehydrated under reduced pressure and at a temperature above its melting-point, and treated cathodically with aqueous KOH solution. The final product is compressed. In another embodiment the sintered grid is supported with a nickel wire mesh inserted before sintering. The plaque may have a terminal welded on to it and may be used in a Ni or Ni-Cd battery.
Patent GB-1004632-A (GB)
Title: Improvements in master cylinders for hydraulic braking systems
Inventor: REYNOLDS DESMOND HENRY JAMES
IPC: B60T11/20
Filed: 1962-10-18
Abstract: 1,004,632. Hydraulic brakes. GIRLING Ltd. Nov. 27, 1963 [Oct. 18, 1962], No. 39404/ 62. Heading F2F.  In a tandem master cylinder for an hydraulic braking system, the secondary or floating piston 14 is in the form of an annulus or sleeve through which is axially slidable a piston rod 13 extending forwardly from an integral with or rigidly secured to the main piston 11. Axially spaced stops 21, 17 are provided on the piston rod for limiting relative axial movement between the piston rod and the secondary piston, the piston normally being held in engagement with the forward stop 17 by a spring 18. The pressure space 22 between the pistons is connected to the slave cylinders of the brakes on the front wheels of a vehicle and at the pressure space 23 between the secondary piston and the closed forward end of the cylinder is connected to the slave cylinders of the brakes of the rear wheels. In the event of a failure of the hydraulic connections to the front wheel brakes the piston rod can move through the secondary piston 14 until the shoulder 21 on the piston rod engages the secondary piston which is then directly actuated by the main piston to displace liquid from the pressure space 23 to the rear wheel brakes. In the event of a failure in the connections to the rear wheel brakes the secondary piston moves forwardly until it engages a stop formed by an integral shoulder 28 in the cylinder bore and the liquid in the pressure space 22 is displaced by the normal forward movement of the main piston 11 to apply the front wheel brakes.
Patent GB-1133765-A (GB)
Title: Manufacture of polymer compositions
Inventor: GRINDLEY PETER RICHMOND
IPC: C08K5/19
Filed: 1965-09-17
Abstract: 1,133,765. Antistatic polymer additive. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Aug., 1966 [17 Sept., 1965], No. 39720/65. Heading C3P. Polyvinylchloride and/or vinyl chloride/vinylidene chloride copolymer contains as an antistatic agent a compound RCOOC 2 H 4 N(C 2 H 5 ) 3 SO 4 C 2 H 5  in which R is a saturated or olefinically unsaturated aliphatic hydrocarbon radical of 11 to 17 carbons and may be the residue from lauric acid, palmitic acid, stearic acid, palmitoleic acid, oleic acid, or palm kernel fatty acid. There may also be present a plasticizer, e.g. dioctyl phthalate and/or tritolyl phosphate and a stabilizer, e.g. lead stearate. The compositions are used for conveyer belts or footwear.
Patent GB-816416-A (GB)
Title: Rotatably mounted domestic electric appliances
IPC: A47L9/26
Filed: 1957-12-23
Abstract: 816,416. Suction cleaners. SINGER MANUFACTURING CO. Dec. 23, 1957 [Jan. 15, 1957], No. 39817/57. Class 8(1). [Also in Group XXX] A motor-fan suction cleaner of the vertical canister type is rotatably mounted on a base 34 from which extends an electric cord 73 connected to slip rings 67, 68 mounted in the base and which conduct current through brushes 71, 72 carried by a strip of insulation material 53 secured to the bottom plate 31 of the cleaner casing 16 to leads 83, 84 connected to the motor and to a switch 26, Fig. 1 (not shown) on the side of the casing. The bottom plate 31 is carried on ball bearings 36 and rotates about a vertical screw bolt 44 on swinging the suction hose connected to the casing top. Fan exhaust passing through ports 33 is silenced by a sleeve of material 80 surrounding the lower end of the casing 16. The cord 73 is wound round a conventional spring-loaded reel 61 capable of rotation round the bolt 44 independently of the cleaner casing. A blower hose connection 27 (not shown) is provided at the side of the casing 16.
Patent GB-1085116-A (GB)
Title: Improvements in or relating to power plants
IPC: F01K3/18
Filed: 1965-09-18
Abstract: 1,085,116. Power-generating systems. H. A. KERSHAW. Sept.18, 1965, No.39877/65. Heading F1Q. [Also in Division F4] In a power plant, vapour, e.g. steam, from a boiler 1 passes through a pipe 3 to a power generator 4, e.g. a turbine. The exhaust from the generator and liquid supplied from the boiler through a pipe 7 are returned to the boiler through one or more injectors 6, a pipe 8 and a clack valve 9. The boiler may be heated by a thermostatically-controlled electric immersion heater 2 or oil-fired furnace. Vapour and liquid flow control valves 10, 11 are provided. Additional heating or superheating may be provided at 2a either by electric or combustion means. When a number of injectors are used valves may be included to shut-down one or more injectors when the generator is operating at low power. Means (not shown) to replenish leakage may include auxiliary injectors or a gravity feed. An overflow pipe 6a may contain a valve. The boiler may contain a liquefied gas, e.g. methyl chloride, or carbon dioxide dissolved under pressure in water or other liquid.
Patent GB-1092248-A (GB)
Title: Improvements in or relating to information display devices
IPC: G09F11/23
Filed: 1965-09-22
Abstract: 1,092,248. Signs. H. W. E. HARDY. Nov. 2, 1966 [Sept. 22. 1965]. No. 40304/65. Heading G5C. An information device displays three items of information one at a time, two items being carried by opposed surfaces 4A and 4B of a panel 4 mounted within a housing 1 for rotation by a prime mover, e.g. an electric motor 5, and the third item being carried by a support within the housing, e.g. a wall 11. When an item of information on the panel is viewable the panel masks the item on wall 11. A light source 6 is positioned to cast light directly on whatever item is being displayed. A flange 10 along a pair of opposite edges of each panel surface serves for releasably receiving a sheet bearing information; alternatively chalk of self-adhesive letters can be applied to the panel. The panel is removable from the housing through the aperture 3.
Patent GB-944451-A (GB)
Title: Improvements in and relating to welding
Inventor: GOTCH RONALD WILLIAM
IPC: B23K9/028
Filed: 1961-11-15
Abstract: 944,451. Welding by fusion. FOSTER WHEELER Ltd. Nov. 7, 1962 [Nov. 15, 1961], No. 40870/61. Heading B3R. Apparatus for butt-welding tubes 10, 12 prepared with a welding groove comprises a ring 28 mounted on the tubes and removable laterally therefrom, the ring carrying an electrode 47 and locating means 34 engaging the welding groove to locate the electrode 47 as relative rotation of the tubes 10, 12 and the ring 28 occurs during welding. The locating means 34 comprises spring-loaded rollers in an annular recess 33 into which projects a removable welding torch 38. The ring 28 and a sprocket 40 are formed in two hanged halves so as to be laterally removable. A split hinged clamp 16 is fixed on one tube 10 by means of three centring screws and carries a sprocket 18 on a driving shaft 20 journalled in a spring- loaded pivoted block 22. After the ring 28 is located by the rollers 34, the clamp 16 is fixed adjacent the ring 28 and the sprockets 18, 40 are joined by a chain. The torch 38 has a watercooled block 50 carrying the electrode 47 and provided with grooves for the passage of argon which during welding pressurizes the recess 33 and so improves the weld. In a modification the tubes are rotated.
Patent GB-1143480-A (GB)
Title: A method of forming aligned oxide patterns by electrolytic action on opposite surfaces of a wafer of semiconductor material
IPC: H01L21/316
Filed: 1966-09-13
Abstract: 1,143,480. Semi-conductor devices. RADIO CORPORATION OF AMERICA. 13 Sept., 1966 [15 Sept., 1965], No. 40906/66. Heading H1K. [Also in Division C7]  A semi-conductor wafer is anodized locally by illuminating in a pattern a face of the wafer wetted with an electrolyte having oxygencontaining anions, e.g. sodium nitrate solution. Opposite major faces of the wafer may be provided with registering oxide patterns by wetting both faces with electrolyte and using either a thin wafer, e.g. of 5 to 15 mils or applying an additional voltage across the wafer to confine the hole current path laterally. The oxidation may be carried out in a cell with a transparent wall over which a mask is fixed and illuminated externally, the wafer being supported over the transparent wall by carbon spacers by which the voltages connected to the faces of the wafer are supplied (Fig. 6, not shown). The wafer may be a single doped crystal of N-type silicon or germanium, or a P-type material, and the oxide pattern formed may be of grid form. For N-type silicon, dots of indium may be placed in the unoxidized open areas and heated to form alloy junction transistors, the base connection being made to the unoxidized wafer. The wafer may be cut up along the lines of oxide.
Patent GB-1475172-A (GB)
Title: Treating titanium dioxide pigments
IPC: C09C1/36
Filed: 1974-09-20
Abstract: 1475172 Treating pigments LAPORTE AUSTRALIA Ltd 20 Sept 1974 [21 Sept 1973] 41009/74 Heading ClN A surface coated TiO 2  pigment is treated to increase its bulk density by subjecting the particulate pigment to a rolling treatment for a period of more than one hour. The pigment is suitably rolled in a cylinder having a diameter of at least 500 mm. at 10-30% of the critical speed (the speed at which the centrifugal force equals the weight of the pigment). A preferred schedule comprises rolling at 10 to 20% of critical speed for up to 3 hours followed by rolling at 40 to 80% of critical speed for 5-24 hours. Titanium dioxide pigment spheres having a loose bulk density of at least 1À0 and of which at least 75% by weight have particle sizes in the range of 200 to 700 microns may be made by the process. The pigment is preferably coated with at least one oxide or hydrous oxide of aluminium, silicon or titanium and may also include hydroxides or hydrous oxides of B, Sb, Zn, Mg, Sn, Pb, Ce and Zr as well as phosphates and/or basic sulphates in a single or a plurality of discrete layers. The coating suitably constitutes 0À5 to 15%, preferably 1 to 3À5%, by weight of the pigment. The titania is preferably one that has been recovered from an aqueous phase, dried and milled.
Patent GB-1220565-A (GB)
Title: A safe incorporating an anti-drilling device
Inventor: BATES ALBERT CHARLES
IPC: E05G1/024
Filed: 1969-08-16
Abstract: 1,220,565. Safes. SECURE SAFES (COVENTRY) Ltd. 16 Aug., 1969, No. 41023/69. Heading E1A. The lock 15 of a safe is protected against drilling by a series of rollers 22 disposed within a recess 19, the rollers having their axes arranged in different directions and being packed in grease. Additional rollers 23 may be provided to protect the bolt. Specification 883005 is referred to.