baber/WOPTO huggingface dataset:
Patent GB-1126813-A (GB)
Title: Solid solutions of the transition metals nitrides and oxynitrides and methods of preparation thereof
Inventor: ROUBIN MARC PIERRE
IPC: C22C32/00
Filed: 1965-11-26
Abstract: 1,126,813. Nitrides and oxynitrides. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 26 Nov., 1965 [27 Nov., 1964], No. 50277/65. Heading C1A. [Also in Division B1] Solid solutions of nitrides and oxynitrides containing 2 to 7 of the metals Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W are prepared by formng powders of the corresponding, oxides and reacting with a NH 3 -containing gas at temps. from 600 to 1500 C. The gas may also contain H 2 . The powdered oxides may be formed' by (a) coprecipitation of a solution containing salts or unstable complexes of 2 to 7 of the metals with NH 3  or urea, or (b) co-crystallizing; oxalate. complexes of the metals, then pyrolysing the hydrated metal oxides or oxalate complexes at a temp. less than 700 C. in an atmosphere of NH 3  with or without H 2 . The nitrides produced may contain up to 10% wt. of interstitial oxygen and are termed oxynitrides.. The particles of this product may be submicronic. The nitriding reaction may be performed in a fixed or fluidized bed. The product may be used as catalyst in the synthesis of NH 3  or as a catalyst support.
Patent GB-1368121-A (GB)
Title: Welding devices
IPC: B23K9/12
Filed: 1971-11-01
Abstract: 1368121 Welding by fusion BABCOCK &  WILCOX CO 1 Nov 1971 [30 Oct 1970] 50620/71 Heading B3R In welding a joint at the intersection of two thin strips of a lattice, e.g. supporting fuel rods in the core of a nuclear reactor, an electrode of a welding (e.g. TIG) gun is aligned with at least one of the plates by a device comprising a cylindrical body which is adapted to be secured to the gun so as to surround the electrode and has means to closely embrace the edge of at least one of the strips. As shown, the device comprises a body 10 threaded at 13 for separable attachment to the gun. An insulator 17 having gas vent grooves 19 is provided to centre the electrode within the body. Two diametrically opposite parallel walled grooves 16 are provided in a face 15 of the body. One of the grooves is flanked by chisel edged lugs 22 which extend inwardly over the insulator and have their lower faces 45 coplanar with the groove bottom faces and their opposed faces 46 continuing from the walls of the one groove. In use, the grooves 16 and lugs 22 engage a workpiece strip so as to locate the gun respectively in horizontal and vertical planes. A further pair of grooves in the face 15 may be provided so that both of the intersecting strips may be engaged. In Figs. 4, 5 (not shown), four deep grooves spaced at 90 degree intervals are provided to engage both intersecting strips, the gun electrode being thereby centred at the intersection.
Patent GB-1117208-A (GB)
Title: Methods for duplicating from sheet form printing masters onto moistened papers to be printed
IPC: B41M5/025
Filed: 1965-11-30
Abstract: 1,117,208. Duplicating. G. RITZERFELD. 30 Nov., 1965 [4 Jan., 1965], No. 50725/65. Heading B6C. In a method of printing from a printing master sheet having an image area on to a copy sheet, the image area is coated with a wax-like composition including two aromatic diamines which together have no colouring effect or only a weak colouring effect, the copy sheet is moistened with a liquid including an alcoholic solution of a substance or substances capable of reacting with the two aromatic diamines to form a dye, and the copy sheet is placed against the master sheet so that the dye thereby formed is transferred to the copy sheet. The diamines may be N,N-diethyl-p-phenylenediamine hydrochloride together with m-phenylenediamine hydrochloride or toluylenediamine. The moistening liquid may be a quinone and/or copper chloride dissolved in ethyl alcohol.
Patent GB-1534134-A (GB)
Title: Lure launching cartridges
IPC: F42B5/03
Filed: 1975-12-12
Abstract: 1534134 Cartridge for launching missile lures SOC E LACROIX 12 Dec 1975 50965/75 Heading F3A A cartridge for launching electromagnetic or infra-red lures from an aircraft to confuse the guiding system of a missile launched against the aircraft, comprises a casing 10, Fig. 4, containing a number of projectiles 30 which are arranged to be ejected from the casing by the sequential electrical ignition of associated ejection charges 38, the projectiles each carrying a load adapted to form at least one lure 32. The lures comprise annular pyrotechnic discs which burn in the infra-red region of the spectrum or metallized needles which act as dipoles when dispersed from the projectiles. The pyrotechnic charges acting as the lures are ignitable by the ejection charges 38 acting through pyrotechnic delay fuzes 44 and igniter charges 46, 50. A slide 56 separating the charges 46, 50 in each projectile is moved by springs (64), Fig. 3, not shown, when the projectile leaves the casing 10 to provide communication between the charges. The electrical means for causing sequential ignition of the ejection charges 38 is contained in a socket 80 and communicates with individual electric igniters (not shown) for the ejection charges via a flexible printed circuit 78. A modified form of projectile, Fig. 5, for ejection from the cartridge, comprises an ejection charge 38 &c., as previously and end plugs 54, 55 held in the ends of a casing 22a by a weak connection 57 which is destroyed upon the ignition of charges 50, 51. Pyrotechnic elements 30a are ejected from the casing 22a by the accumulation of gas pressure in the space 65.
Patent GB-1526769-A (GB)
Title: Below ground clamp unit
IPC: E04H12/22
Filed: 1976-11-30
Abstract: 1526769 Sockets for posts STAINES METAL PRODUCTS (GROUP) Ltd 30 Nov 1976 [12 Dec 1975] 51011/75 Heading E1B A tubular socket embedded in set material comprises a slit upper end 1 and clamping means 3, 4, 5 therearound to clamp a support post of a climbing frame inserted in the socket. An anchoring plate is welded to the lower end of the tube. Indentations 6 on the inner face of the tube centre the support post in the socket. The clamping means is preferably a split ring welded to the tube.
Patent GB-1070892-A (GB)
Title: Hand roller
IPC: B05C17/02
Filed: 1965-12-02
Abstract: 1,070,892. Coating apparatus. FIA-WERKSTATTEN ERICH FEINE. Dec. 2, 1965 [Dec. 4, 1964], No. 51209/65. Heading B2L. [Also in Division B4] A hand liquid applying roller comprises a replaceable roller element 1 mounted by means of two resilient arms 4 having axle journals 9, the arms together with a handle 3 forming a one-piece plastics bowed member provided with reinforcing ribs 7, and a crossbar 5 which is formed as a shallow triangle having a base rib 6 connecting the resilient arms. The base rib 6 is preferably at least as long as the clearance between the ends of the journals 9 and the arms preferably have stop collars 8 thereon. The handle 3 may have a thumb recess 10 and a projection 11 preferably forms a hook-like slot to enable the roller to be supported on the rim of a pail. The roller element 1 may consist of a core having bushings and an outer fibre covering, the core being of impregnated cardboard or formed of a cardboard tube closed by plastics discs having brushings for the journals 9.
Patent GB-1487190-A (GB)
Title: Apparatus for monitoring telephone events
IPC: G07C11/00
Filed: 1974-11-26
Abstract: 1487190 Automatic exchange systems TELESCIENCES Inc 26 Nov 1974 [20 Sept 1974] 51222/74 Heading H4K A traffic data monitor for determining the number and duration of calls on a set of trunks or the number of times and duration that all trunks or line finders are busy comprises a scanner for sequentially examining the lines, a last look memory for checking the validity of the data event being monitored, an accumulating store for recording each separate validated event, a timer for checking the overall duration of each validated event, an accumulating memory for recording these durations, a passive memory into which the contents of the accumulating memories may be transferred and a communications system for transferring the contents of any memory to a remote processing station. The trunks are examined in sets of 8 up to a total of 1024, there being ten such 1024 trunk groups. A computer provides the appropriate group, set and data transfer commands. Duration of an event is determined in terms of preselected time periods. Last look validation is determined in terms of event present for, e.g. three "successive" scans and event absent for, e.g. three "successive" scans. These scans need not be immediately successive. Details of the addressing, memory, timing and data transferring arrangements are described.
Patent GB-522225-A (GB)
Abstract: 522,225. Alkaloids. MERCK & CO., Inc. Dec. 9, 1938, Nos. 35936 and 35937. Convention dates, Dec. 16, 1937, and July 27, 1938. [Class 2 (iii)] Alkaloids are extracted from plants of the genus Erythrina (other than E. americana) by alkalinizing the defatted residues of the plants and extracting with an organic solvent, such as chloroform, carbon tetrachloride, benzene and toluene, which is immiscible with the alkaline solution. Hypophorine, if present, may be removed from the starting material before alkalinization. The process may be applied to the bark of roots, stems, flowers or seeds of Erythrina species. When applied to seeds, the ground seeds, either defatted or not, may be treated with water prior to the alkalinization and solvent extraction. When applied to the bark of roots, stems or flowers, the starting material may be treated with methyl or ethyl alcohol to separate out the alkaloidal fraction, together with any resinous substances, the latter may then be precipitated by adding water. For removing fatty substances prior to extraction of the alkaloids, petroleum ether, carbon tetrachloride or chloroform may be used ; any alkaloidal substances removed with the fatty substances may be recovered by extraction with dilute acids. Examples are given.
Patent GB-1216357-A (GB)
Title: Apparatus for resetting an analog integrator
IPC: G06G7/186
Filed: 1968-11-06
Abstract: 1,216,357. Integrating. JUNGER INSTRUMENT A.B. 6 Nov., 1968 [6 Nov., 1967], No. 52667/68. Heading G4H. In apparatus for integrating an input voltage Vin (Fig. 1) of the type in which the output of an integration amplifier U1 is fed to an operational amplifier controlling a bi-stable, the output pulses from which are counted and fed back to discharge the integrator an operational amplifier U4 receiving the output of the integrating amplifier U1 and a compensation voltage proportional to the input voltage is connected to reset the bi-stable device. This compensates for the input voltage during discharge of the integrator and reduces errors due to temperature drift. In the embodiment described the output of the integrator amplifier U1 is connected to two operational amplifiers U2, U3 acting as comparators for positive and negative input signals respectively and controlling via diodes the setting of bi-stables U6, U7 connected to a further operational amplifier U5. The output pulses from amplifier U5 discharge a capacitor C1 in the integrator circuit, the pulses being terminated by operational amplifier U4 resetting the bi-stable U6 or U7 when the output of the integrator amplifier U1 drops to a value proportional to the compensation voltage.
Patent GB-1149262-A (GB)
Title: Improvements in or relating to nucleoside derivatives and the manufacture thereof
IPC: C07H19/10
Filed: 1966-04-29
Abstract: 1,149,262. Nucleoside derivatives. UPJOHN CO. 29 April, 1966 [1 June, 1965], No. 52670/68. Divided out of 1,149,261. Heading C2C. Novel compounds of the general formula in which A represents triphenylmethyl, (pmethoxyphenyl)diphenylmethyl or bis(p-methoxyphenyl)phenylmethy] and R and R<SP>1</SP> are hydrogen or are acyl radicals of C 2-12  hydrocarbon monocarboxylic acid or of anisic acid or R is hydrogen and R<SP>1</SP> is an acyl radical (as defined above), or A is hydrogen and both R and R<SP>1</SP> are acyl radicals (as defined above) or R is hydrogen and R<SP>1</SP> is an acyl radical (as defined above) are prepared by the reaction scheme where T = triphenylmethyl, (p-methoxyphenyl) diphenylmethyl or bis(p-methoxyphenyl)phenylmethyl and Ac is an acyl radical (as defined above), wherein the starting material, I, can be converted into compound II by etherification using as etherifying agent chlorotriphenylmethane, chloro - (# - methoxyphenyl) - diphenylmethane or chlorobis(p-methoxyphenyl) phenylmethane or the corresponding bromo derivatives, compound II may be converted to compound III by acylation by means of an acylating agent chosen from acyl halides and acid anhydrides which will provide the desired acyl group, compound III may be converted into compound IV by ether cleavage using acetic acid, a hydrogen halide or acetic acid containing a hydrogen halide, compound IV may be converted into compound V by selective hydrolysis, compound V may be converted into compound VI by etherification and compound VI may be converted into compound III by acylation. N<SP>4</SP> - Anisoyl - 1 - # - D - arabinofuranosylcytosine is prepared by direct acylation of 1-#-D- arabinofuranosylcytosine with anisoyl chloride in pyridine solution.
Patent GB-1088908-A (GB)
Title: Venting apparatus
IPC: F23L17/02
Filed: 1964-12-30
Abstract: 1,088,908. Flue pipe terminals. GULF OIL CORPORATION. Dec.30, 1964 [Dec. 3, 1964], No. 52756/64. Heading F4J. A flue pipe terminal comprises a pair of similar, coaxial convex dises 32, 34 maintained in a spaced relationship, the disc 34 having an opening 12 in its centre for a flush - fitting flue pipe 10. The discs 32, 34 define a circular Venturi - throat restriction 36 causing a region of reduced pressure so promoting flue gas removal. The surface of an enclosure disc 38 is of a smaller radius of curvature than that of disc 32 so that an increase in wind velocity causes a net reduction of pressure above disc 38 relative; to below disc 32 so the discs 38, 32 and attached support rods 42 move upwardly in tube mountings 46 on lower disc 34, thereby increasing the volume of Venturirestriction 36 to compensate for the increase in wind velocity and to maintain a constant draught in flue pipe 10. In another embodiment (Fig. 2) the discs are supported in spaced relationship by rods linked together by a threaded bolt to permit manual adjustment of the space between the discs. Alternatively the discs may be mounted at a fixed distance by fixed supporting rods.
Patent GB-1376452-A (GB)
Title: Purification of dimethyl terephthalate
IPC: C07C67/48
Filed: 1971-11-12
Abstract: 1376452 Two-stage crystallization DYNAMIT NOBEL AG 12 Nov 1971 [14 Nov.1970] 52786/71 Heading B1G [Also in Division C2] Dimethyl terephthalate is purified by a continuous two-stage process by passing a solution of dimethyl terephthalate in methanol through a seed-forming apparatus in which the solution is cooled to a temperature of from 100 to 88C to supersaturate the solution and for a time sufficient to form seed crystals of grain size from 10 to 130Á, and then passing the seedcontaining solution through a crystal growth apparatus where the seed crystals form crystals of larger grain size. The seed-form and crystal-growth apparatus are preferably both thin layer condensers and the cooling surface in the crystallizer is cleaned by scrapers attached to a rotating shaft. As shown a solution in methanol of the terephthalate is passed through input 9 into container 1, from where it passes into a tubular crystallizer 3 regulated by a coolant which enters the crystallizer at 10 and leaves at 11. The seed-containing solution on leaving 3, immediately enters at 5 crystalgrowth scraping condenser 6, provided with a jacket for coolant entering at 12 and leaving at 13. The crystal slurry leaves the scraper at 7 and passes to centrifuge 8 from which the crystals are recovered at 14 and the solvent at 15.
Patent GB-1517870-A (GB)
Title: Apparatus for producing vectors from raster scanned data
IPC: G06V10/20
Filed: 1976-12-20
Abstract: 1517870 Image encoding apparatus INTERNATIONAL BUSINESS MACHINES CORP 20 Dec 1976 53036/76 Heading H4P Graphics on a document 1 are raster scanned by a scanner 2 and the resulting bit pattern on line 3 is processed at 4 to provide a bit pattern representing lines having a width of a single pel (i.e. picture element) indicative of the shapes, i.e. the outlines or the centre lines, of the scanned graphics. A line follower 6 examines successively each bit position in the processed bit pattern to determine whether it represents a pel and, if so, whether the detected pel is contiguous with a previously detected pel either on the same scan line or the preceding scan line;  contiguous pels are also examined to determine whether they fulfil a predetermined linearity condition, and if so a coded representation in the form of a vector having a start address and an end address is produced by the line follower 6 and passed along line 7 to a vector store 8. Whenever contiguous pels do not fulfil the required linearity condition, the vector being tracked is terminated and a new vector is started. The resulting vector bit in store 8 can be accessed, e.g. by a sub-system controller 10, and then displayed in any convenient manner, e.g. vectors longer than a predetermined threshold can be displayed on a graphic display 11 and vectors shorter than this on an alphanumeric display 12, the assumption being that long vectors are probably graphical in nature whilst short vectors probably constitute alphanumeric characters. Operation of keyboards 13, 14 allows displayed "documents" to be corrected edited, etc. Suitable apparatus for generating the vectors and details of the scanning, pel-stripping and linearity-determining processes are described with reference to Figs. 2 to 27 (not shown).
Patent GB-1521770-A (GB)
Title: Two-step continuous polymerisation method to form acrylonitrile copolymers
IPC: C08F220/42
Filed: 1975-12-30
Abstract: 1521770 Acrylonitrile/styrene, &c. copolymers E I DU PONT DE NEMOURS & CO 30 Dec 1975 [2 Jan 1975] 53175/75 Heading C3P Acrylonitrile copolymers are prepared by (a) into a first reactor continuously feeding a free radical initiator and an aqueous emulsion containing a chain transfer agent, acrylonitrile and at least one styrenic monomer which is styrene; 4-methyl styrene; 4-(t-butyl)styrene; 3-methyl styrene; 2,4-dimethyl styrene; 2,6- dimethyl styrene or 2,4-diisopropyl styrene, or which is alpha-methyl styrene in combination with at least one of the other styrenic monomers, whereby, in the first reactor, for at least 95% of the reaction time a styrenic monomer: acrylonitrile ratio is maintained which is within 25% of a ratio necessary to produce a polymer containing an average of 65% to 85% by weight of units derived from acrylonitrile and 35 to 15% by weight of units derived from the styrenic monomer(s); (b) from the first reactor continuously withdrawing an outlet stream containing 15 to 20% by weight of polymer solids, 4 to 7% by weight of an emulsifier (based on the weight of the polymer) and 45 to 60% by weight of unreacted acrylonitrile (based on the weight of acrylonitrile fed to the first reactor) ; (c) into a second reactor continuously feeding the outlet stream from step (b) together with added free-radical initiator and an added aqueous emulsion of a chain transfer agent, acrylonitrile and at least one styrenic monomer as specified in step (a), the added aqueous emulsion containing at least 0À2% by weight of emulsifier (based on the weight of added water exclusive of water from step (b)), whereby, in the second reactor, for at least 95% of the reaction time a styrenic monomer: acrylonitrile ratio is maintained which is within 25% of a ratio necessary to produce a polymer containing an average of 65% to 85% by weight of units derived from acrylonitrile and 35 to 15% of units derived from the styrenic monomer(s); (d) continuously withdrawing from the second reactor an outlet stream containing 20 to 30% by weight of polymer solids, 1À3 to 2À5% by weight of an emulsifier (based on the weight of the polymer), and 10 to 30% by weight of unreacted acrylonitrile (based on the weight of acrylonitrile fed to the second reactor), and wherein a second reactor polymer production: first reactor polymer production ratio of 1 : 1 to 6 : 1 is maintained; the polymer thus produced processing a melt stability of at 10 least minutes, an inherent viscosity of 0À3 to 1À0 deciliter/g. as measured on a 0À5 g/deciliter solution of the polymer in gammabutyrolactone at 35 C., a melt viscosity of 10<4> to 10<6> poises at 220 C., and a carbon dioxide permeability of less than 0À045 barrer and containing 65 to 85% by weight of units derived from acrylonitrile and 35 to 15% by weight of units derived from the styrenic monomer.
Patent GB-1456971-A (GB)
Title: Inertia-actuated acceleration-sensing mechanisms
IPC: B60R22/40
Filed: 1972-11-17
Abstract: 1456971 Inertia sensing mechanism KANGOL MAGNET Ltd 19 Nov 1973 [17 Nov 1972] 53328/72 Heading A3V [Also in Division G1] An inertia mechanism for sensing acceleration, e.g. for actuating an inertia reel for a vehicle safety belt, comprises a pendulum I, 37 mounted on a support 8, 32 to tilt about a position horizontally spaced from the centre of gravity of the pendulum so as to engage at a position, also horizontally spaced from said centre of gravity, an output member 10, 35 e.g. to effect locking of the reel. Such horizontal spacing may be provided by a circular plate 5 or bya circular-topped shaft 32. To render the mechanism more sensitive to acceleration in particular directions non- circular shapes may be used for these parts.
Patent GB-1154828-A (GB)
Title: Non-Linear Decoder
IPC: H03M1/00
Filed: 1967-11-23
Abstract: 1,154,828. D/A converters. INTERNATIONAL STANDARD ELECTRIC CORP. 23 Nov., 1967 [28 Nov., 1966], No. 53333/67. Heading G4H. In a digital to analogue converter having a non-linear conversion characteristic comprising positive and negative straight line segments (Fig. 3, not shown) approximating to a logarithmic curve, the four most significant bits B1, B2, B3, B4 of a 7-bit input signal held in a register RG (Fig. 4), the most significant of which B1 represents polarity, are converted into a signal on one of fourteen leads CP, C<SP>11</SP>2 . . - C<SP>11</SP>7, CN, C<SP>1</SP>2 . . . C<SP>1</SP>7 to enable an associated electronic switch P<SP>11</SP>1 . . . P<SP>11</SP>7, P<SP>1</SP>1 . . . P<SP>1</SP>7 to determine the point at which a current, the magnitude of which is determined by the least three significant bits B5, B6, B7 controlling generators G2, G3, G4 and also by the bits B2, B3, B4 controlling, via an OR gate 1, generator G1, is fed to a ladder network of resistances. The analogue voltage across resistor R c  represents the seven bit input signal.
Patent GB-1356840-A (GB)
Title: Material and process for photochemically forming photographic images
IPC: G03C5/56
Filed: 1971-11-17
Abstract: 1356840 Photo-sensitive materials for producing stabilized photo-chromic images FUJI PHOTO FILM CO Ltd 17 Nov 1971 [19 Nov 1970] 53469/71 Heading G2C A photo-sensitive material used for producing stabilized photo-chromic images comprises a support coated with a layer containing a photochromic compound of formula: wherein R<SP>1</SP> is alkyl or substituted alkyl of 1-5 carbon atoms or phenyl, R<SP>2</SP> and R<SP>3</SP> are alkyl with 1-5 carbon atoms or phenyl or together they form the group -(CH 2 ) n  where n is 4 or 5; X is hydrogen, halogen, nitro, carboxyl, alkoxycarbonyl, alkyl or alkoxy; Y is nitro, halogen, alkoxy or aldehyde and m is 1 or 2, and a heatdecomposable peroxy compound e.g. a diacyl or dialkyl peroxide, a hydroperoxide or a peroxyester. The layer may contain a binder such as a vinyl or acrylic polymer or copolymer or a cellulose ester. The material may be imagewise exposed to ultraviolet and then uniformly heated or left in the dark to produce a permanently coloured image.