baber/WOPTO huggingface dataset:
Patent GB-1037892-A (GB)
Title: Chromium complexes of monoazo pyrazolone dyestuffs
Inventor: BLACKHALL ALEXANDER
IPC: C09B62/477
Filed: 1963-11-29
Abstract: The invention comprises chromium-containing azo dyestuffs which, in the form of free acids, are represented by the formula <FORM:1037892/C4-C5/1> wherein Z represents -CH = CH2 or -CH2CH2Cl, n represents 1 or 2, one of Q1 and Q2 represents H and the other represents -SO3H, R1 and R2 each represent H, Cl, NO2, -SO2NH2 or substituted sulphonamide, and the benzene ring T optionally carries one or more Cl atoms or C1-C4 alkyl groups.  They may be obtained either by treating a chromium containing azo compound of the formula <FORM:1037892/C4-C5/2> with acryloyl chloride or b -chloropropionyl chloride, or by reacting in aqueous medium, or in a mixture of water and a water-miscible organic liquid, a 1:1-chromium complex of an azo compound of the formula <FORM:1037892/C4-C5/3> and an azo compound of the formula <FORM:1037892/C4-C5/4> They may be applied to nitrogen-containing textile materials whereby they are coloured yellow. The chromium-containing compounds of Formula I may be obtained by reacting together in water and/or a water-miscible organic liquid a 1:1-chromium complex of an azo compound of the formula <FORM:1037892/C4-C5/5> and an azo compound of the formula <FORM:1037892/C4-C5/6> The 1:1-chromium complexes of the azo compounds of Formula II may be obtained by treating with a Cr yielding agent an azo compound which it itself obtained by diazotizing an amine of the formula <FORM:1037892/C4-C5/7> and coupling with a 5-pyrazolone of the formula <FORM:1037892/C4-C5/8> The azo compounds of Formula III may be obtained by coupling a diazotized amine of the formula <FORM:1037892/C4-C5/9> with a pyrazolone of the formula <FORM:1037892/C4-C5/100> The azo compounds of Formula VIII may be obtained by treating an azo compound of Formula III with acryloyl chloride or with b -chloropropionyl chloride or by treating a pyrazolone of Formula VII with acryloyl chloride or with b -chloropropionyl chloride and coupling with a diazotized amine of Formula VI.ALSO:The acryloyl and b -chloropropionyl derivatives of pyrazolones of the formula <FORM:1037892/C2/1> wherein n represents 1 or 2, are obtained by reacting an amine of the above formula with acryloyl chloride or with b -chloropropionyl chloride.
Patent GB-1434645-A (GB)
Title: Tetrazole coumarin derivatives
IPC: C07D491/052
Filed: 1973-10-11
Abstract: 1434645 3- Tetrazolylcoumarins and process for their preparation and their pharmaceutical compositions BEECHAM GROUP Ltd 19 Sept 1974 [11 Oct 1973] 47484/73 Heading C2C The invention comprises compounds of Formula I or a pharmaceutically acceptable salt thereof wherein R is an alkyl or phenyl group; R 1 , R 2 , R 3  and R 4  are independently a hydrogen or halogen atom or an alkyl, alkoxy, phenyl, benzyl, pyridyl or carboxylic acid group or a pharmaceutically acceptable salt, ester or amide of a carboxylic acid group, an acyloxy group, or any adjacent two of R 1  to R 4  together represent a butadienylene or tetramethylene group provided that when R 1  = R 2  = R 7  = R 4  = H, RCH 3  which may be prepared by reacting a compound of Formula II with ammonium azide. Pharmaceutical compositions useful in the prophylaxis and treatment of diseases associated with allergic or immunological reactions, for injection or oral application comprise a compound of Formula I or acceptable salt thereof together with one or more pharmaceutically acceptable carriers.
Patent GB-1449636-A (GB)
Title: Multiple image formation through self-imaging
IPC: H01L21/30
Filed: 1973-10-12
Abstract: 1449636 Spacial filtering XEROX CORP 12 Oct 1973 [17 Oct 1972] 47861/73 Heading G2J Multiple images of a single object S are formed by illuminating it with incoherent light and arranging secondary radiation given off by the object (filtered to render it mono-chromatic if necessary) to pass through a structure 2 having a suitable array of apertures to give a plurality of images by diffraction. The "light" may be x-rays.
Patent GB-1444690-A (GB)
Title: N6-2-bicyclo-2,2,2-octyl-adenine derivatives and preparation thereof
IPC: C07D239/00
Filed: 1974-11-05
Abstract: 1444690 N<SP>6</SP>-Bicyclo[2,2,2]-octyl-adenine derivatives MERCK PATENT GmbH 5 Nov 1974 [7 Nov 1973] 47872/74 Heading C2C Novel compounds I and acid addition salts thereof in which R is phenyl or thienyl are prepared by (1) reacting 6-X-purine (in which X is F, Cl, Br, I, SR<SP>1</SP>, SOR<SP>1</SP>, SO 2 R<SP>1</SP> or OSiMe 3  where R<SP>1</SP> is C 1-4  alkyl, phenyl or benzyl) with 3-R-2-bicyclo[2,2,2]- octylamine (2) condensing 6-(3-R-bicyclo[2,2,2)- oct - 2 - ylamino) - pyrimidine - 4,5 - diamine with an orthoformate in the presence of a carboxylic acid anhydride or (3) removing by solvolysis or hydrogenolysis an additional benzyl group or ribose radical in the 9-position of the purine moiety or one or two Cl, Br, I, SR<SP>1</SP>, SOR<SP>1</SP> or SO 2 R<SP>1</SP> groups in the 2- and/or 8- positions of the purine system. Compounds I raise coronary blood flow, increase oxygen partial pressure in blood, may be used in the treatment of angina pectoris, reduce arrhythmia, affect circulation, inhibit lipolysis or lower cholesterol levels. They form with a carrier a pharmaceutical composition which may be administered orally, parenterally, rectally or topically.
Patent GB-1032170-A (GB)
Title: Improved film record card
IPC: G06K19/063
Filed: 1964-11-26
Abstract: 1,032,170. Mounting pictures. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 26, 1964 [Dec. 23, 1963], No. 48023/64. Heading A4X. [Also in Division G2] Films are mounted in an apertured record card of fibrous material, the area surrounding the aperture, at least, being impregnated with a resin and being of reduced thickness to form a support for the film. The resin may act as an adhesive for the film, or the support may be coated with, or contain holes filled with, adhesive.
Patent GB-1370160-A (GB)
Title: Drilling machines
IPC: E21B3/02
Filed: 1972-10-18
Abstract: 1370160 Boring earth &c ROBBINS CO 18 Oct 1972 [20 Oct 19711 48044/72 Heading ElF In a drill comprising a main frame 12, guide columns 18 upstanding on the main frame, a cross frame 22 movable along the columns, jacks 41 between the frames for moving the cross frame, and drilling equipment on the cross frame and comprising a motor 38 having a transmission connected to a rotary drill head 178, the transmission comprises a driving part in a housing 30 and a driven part in a housing 28, the housings with their respective parts being axially separable after removal of fastenings (not shown) connecting the housings. Two motors 38 are connected to a drive shaft 150 having a splined part 154 engaging internal splines in a driven member 156 forming part of the drill head drive disclosed in Specification 1369941. The drill is moved to its upper position and the upper part is connected to a member 20 bridging the guides, bolts between the housings are removed, and the cross frame is lowered to the position shown in Fig. 8 to provide an access space 212 to the housings and their respective transmission parts. The casing 124 with its enclosed transmission parts may be axially separated from the housing 30 and its enclosed transmission parts by removing bolts not shown. The weight of the drill stem 190 and the drill head is balanced by the apparatus disclosed in Specification 1362554.
Patent GB-1358542-A (GB)
Title: Manufacturing of heavy water
IPC: C01B5/02
Filed: 1970-10-09
Abstract: 1358542 Isotope exchange; heavy water H F A TOPSOE 28 Sept 1971 [9 Oct 1970] 48185/70 Heading C1A Ammonia and heavy water are produced by compressing ammonia synthesis gas, passing it through a hydrogen-deuterium exchange stage in which the exchange medium is liquid ammonia containing potassium amide, compressing the exchanged synthesis gas using the same compressor as for the initial gas and converting this into liquid ammonia, adding potassium amide for the exchange stage to a part of this liquid ammonia and feeding the mixture to the exchange stage for isotope exchange with the synthesis gas; separating deuterium-rich liquid ammonia and potassium amide from the exchange stage, the potassium amide being reused, fractionating the liquid ammonia, cracking the ND 3  fraction to give N 2  and D 2  and burning the D 2  to give heavy water, the other fraction being cracked to give ammonia synthesis gas which is fed to the exchange stage being joined to the initial synthesis gas stream. The cracked ammonia synthesis gas in the deuterium extraction plant is synthesized in the converter of the ammonia plant and the recycled effluent gas from the converter is compressed in a separate wheel of the compressor used to compress fresh synthesis gas. The heat recovered in the ammonia plant and in the deuterium plant may be utilized in the same boiler for production of high pressure steam or for heating boiler feed water. It is preferred to use a centrifugal compressor.
Patent GB-1209103-A (GB)
Title: Improvements relating to battery charging
IPC: H02J7/14
Filed: 1968-10-14
Abstract: 1,209,103. Battery charging indicating apparatus. NIPPON DENSO K.K. 14 Oct., 1968 [12 Oct., 1967], No. 48503/68. Heading H2H A device for indicating whether or not a battery 14 is being charged by a generator 11 of a motor vehicle comprises an indicating lamp 23 connected in series with a transistor 22 across the terminals of the battery, the arrangement being such that when the generator 11 is stationary the base of the transistor 22 is biased by the battery 14 via a resistor 21 so that the transistor 22 becomes conductive to energize the lamp 23 from the battery but when the generator is generating a second transistor 18 is biased by the voltage of the phase 16 of the generator so as to become conductive thereby rendering transistor 22 non-conductive to deenergize the lamp 23. The components of the device may be incorporated into a structure which can be accommodated in the housing of the generator.
Patent GB-1325163-A (GB)
Title: Thread systems for screw type closure structures for pressure vessels
IPC: F16B33/04
Filed: 1970-10-13
Abstract: 1325163 Closures for pressure vessels NATIONAL FORGE CO 13 Oct 1970 [17 Nov 1969] 48638/70 Headings F2P and F2Q In a pressure vessel-closure assembly employing screw threads as the locking arrangement, at least one of the threads is provided with a groove below the thread roots, the depth of the groove increasing towards the vessel interior, the rate of increase also increasing towards the vessel interior, allowing increasing deflection of the threads under load and equalizing the stresses in the threads. As shown, both buttress threads 13, 14 are provided with grooves 15, 16 the threads being crowned on their angled faces to avoid local stress concentrations upon deflection under load. The threads may be single-start or multi-start continuous or interrupted. The gullet longitudinal profile may be parabolic exponential or cubic.
Patent GB-1107998-A (GB)
Title: A process for preparing a cross-linked copolymer
IPC: D04H1/64
Filed: 1965-11-17
Abstract: A cross-linked product insoluble in boiling tetrachloroethylene is prepared by heating to at least 150 DEG  C. in an oxygen-containing atmosphere a copolymer of ethylene and a compound of the formula CH2=CR1-COO-(CH2)n-CH2 -CH2-NR2R3 wherein R1 is H or methyl, R2 and R3 are each C1-C12 alkyl, and n is from 0 to 10.  Cross-linking may be effected in situ with the copolymer coated, impregnated or laminated on a substrate.ALSO:Substrates are provided with water and solvent resistant coatings by applying thereto, from a solution in a volatile organic solvent, a coating of a copolymer of ethylene and a dialkylaminoalkyl acrylate or methacrylate, removing said solvent by heating to a temperature below 150 DEG C, and then cross-linking the coating by heating the treated substrate to at least 150 DEG C in an oxygen-containing atmosphere.  Coating is effected by conventional methods and the solvent may be, for example, tetrahydrofuran. Substrates specified are textiles, paper, wood, metals, glass and concrete in the form of, for example, sheets, tubes, rods or filaments.ALSO:Fabric is impregnated with a solution in tetrahydrofuran of a copolymer of ethylene and a dialkylaminoalkyl acrylate or methacrylate, removing said solvent by heating to a temperature below 150 DEG C, and then cross-linking the impregnated copolymer by heating the fabric to at least 150 DEG C in an oxygen-containing atmosphere.  The fabric may be woven or non-woven and derived from a material such as cotton, wool, polyamide, polyester or rayon.
Patent GB-978187-A (GB)
Title: Device for forming a waste winding and a connecting tail winding
IPC: B65H54/34
Filed: 1963-12-11
Abstract: 978,187. Winding yarns. ETABLISSEMENTS PAIN BOURGEAS. Dec. 11,1963 [Feb. 21, 1963], No. 48844/63. Heading D1J. Whilst the bobbin 3, Fig. 1, is building up speed the yarn 10 is guided in a groove 31, Fig. 4, of a slowly revolving and suitably grooved body 21 to cause a waste winding M<SP>1</SP>M to be wound on the bobbin and when the body 21 has rotated less than one revolution it permits the yarn to leave the groove 31 and move over against a shoulder 33 of the rotating body 21 to cause a tail winding N<SP>1</SP>N to be wound on the bobbin. The shoulder 33 extends only partly round the body 21. The yarn 10 eventually slips off the rotary body 21 and settles in the normal guide 16. At the start of each winding operation a handle 38 is used to turn the rotary body 21 back to its initial setting.
Patent GB-1077543-A (GB)
Title: An electronic ignition system for internal combusion engines
IPC: F02P3/04
Filed: 1963-12-14
Abstract: 1,077,543. Ignition systems. W. A. EARP. Dec. 11, 1964 [Dec. 14, 1963], No. 49493/63. Heading F1B. In an ignition system there is provided a network including the primary winding P of an ignition coil and switching means for reversing the direction of flow of current in the primary winding from a current source B, the switching means comprising two bi-stable state unidirectionally conductive devices T 1 , T 2  that is devices of a kind which is selectively responsive to alteration of a controlling potential to change its state, being conductive of current in only one direction in one state and non-conductive of current in any direction in the other state, at least one of the devices when conductive providing at least in part a path for the flow of current from the current source in one direction in the primary winding and when non-conductive blocking that path to permit the flow of current in another path in the network and in the opposite direction in the primary winding, there being provided a two-state potential changer CB for altering the controlling potentials applied to the devices from the current source and for so changing the controlling potentials that in one state of the potential changer the first mentioned path is conductive and in the other state of the potential changer that path is blocked and the states of the bi-stable state unidirectionally conductive devices are simultaneously changed by each change of state of the potential changer and the potential changer is operable by the engine to successively and sequentially change its state and thereby at each change of state of the potential changer to reverse the magnetic field generated in the primary winding by the current flowing therein from the current source. As shown the bi-stable unidirectionally conductive devices are transistors. The capacitors C, C 2  may be replaced by Zener diodes. In a modification (not shown) four transistors are associated with a single primary winding. In another modification Fig. 6 (not shown) a bi-stable state flip-flop or similar known controlled oscillator F is employed. The contact breaker may be replaced by a generator employing one or more permanent magnets or electromagnets other modifications are described.
Patent GB-1329449-A (GB)
Title: Colourimetric testing relating to cattle dip solutions
IPC: G01N31/22
Filed: 1970-10-20
Abstract: 1329449 Estimation of insecticidal phosphorus containing compounds BOEHRINGER INGELHEIM GmbH 20 Oct 1970 [21 Oct 1969] 49814/70 Heading B1X A method of estimating insecticidal phosphorus containing compounds present as the active ingredient in a solution of cattle dip comprises first extracting the compound, e.g. O,O - diethyl - O - (2,5 - dichloro - 4 - bromophenyl)-thiophosphate with a lipophilic solvent, e.g. benzene. The solvent is then evaporated and the residue reaction, with heating, with e.g. 4-(p-nitrobenzyl) pyridine, preferably in the presence of a higher boiling solvent, e.g. cyclohexanone or acetophenone or an aliphatic, cycloaliphatic or araliphatic amine, e.g. cyclohexylamine or tetraethylene pentamine. The coloured reaction product so formed is mixed with a solvent, e.g. ethyl or butyl acetate, and the colour compared with standard solutions.
Patent GB-1534683-A (GB)
Title: Push button electrical switch assembly
IPC: H01H13/70
Filed: 1975-11-18
Abstract: 1534683 Mechanical switches UNIVERSAL PARKING METER CO Ltd 18 Nov 1975 [18 Nov 1974] 49914/74 Heading H1N An electrical switch comprises a face plate 2 which is manually flexible in the region of one or more holes 12 in a backing plate 10 to enable a movable contact 14 in the or each hole 12 to move into engagement with a fixed contact 20. The face plate 2 is provided with a groove 8 in its outer surface to define a push button and its flexibility in the region of the hole 12, is provided by a groove 4 in the face plate 2 and/or backing plate 10. An apertured PVC sheet 16 is positioned between the backing plate 10 and electrically insulating material 22 mounting the fixed contact 20. A movable contact ball 14 is positioned in the hole 12 which is lined with an insulating bush 13 and which may be inclined (Fig. 4, not shown). The face plate 2, backing plate 10 and contact ball 14 may be of stainless steel. In another embodiment (Fig. 5, riot shown) the fixed contact is defined by a pair of contact discs (53) positioned either side of a washer (54) and mounted on a printed circuit board (52). The switch may be mounted in a frame (70) (Fig. 7, not shown).
Patent GB-1195289-A (GB)
Title: Oxidation of Soluble Sulfide Compounds
Inventor: HOEKSTRA JAMES
IPC: C02F11/08
Filed: 1967-11-06
Abstract: 1,195,289. Oxidation of sulphide compounds. UNIVERSAL OIL PRODUCTS CO. 6 Nov., 1967 [10 Nov., 1966], No. 50284/67. Heading C1A. Solutions of soluble sulphide compounds are oxidized by contact with molecular oxygen in the presence of a solid catalyst comprising a sulphide of nickel, iron, or cobalt supported on a carrier. The solution may be an aqueous alkaline solution, in particular, an ammoniacal solution of hydrogen sulphide, and the carrier may be alumina or activated charcoal, or other porous material. (A list is given). The catalyst/carrier composite may contain up to 63 wt. per cent of catalyst, calculated as the sulphide. The process is carried out at 0‹ to 100‹ C. using 0À25 to 1 moles of oxygen per mole of sulphide if elemental sulphur is the desired porduct, and at 100‹ to 200‹ C. using more than 2 moles oxygen per mole of sulphide if the desired product is a highly oxidized solution consisting mainly of sulphate, but possibly containing thiosulphite, sulphite, or dithionate, which solution has a low biological oxygen demand so that it may be discharged into rivers. In each case the reaction is performed at a pressure such that the solution is maintained in the liquid phase, and in the former case the sulphur is recovered by filtration, centrifugation, or settling.
Patent GB-1469245-A (GB)
Title: Substituted p-phenylenediamines
Filed: 1974-10-24
Abstract: 1469245 Phenylene diamine derivatives KODAK Ltd 24 Oct 1974 [30 Oct 1973] 50330/73 Heading C2C The invention comprises phenylene diamine derivatives of formula in which R is a C 1 -C 20  alkyl group and R<SP>1</SP> is a C 1 -C 20  alkyl group or phenyl. They may be prepared by N-phenyl-p-phenylenediamine with a ketone of formula in the presence of piperidine and catalytically hydrogenating the Schiff's base so formed. Examples are given of the preparation of compounds in which R is methyl or ethyl and R<SP>1</SP> is methyl, ethyl, n-propyl and phenyl.
Patent GB-1087346-A (GB)
Title: Method of welding toothed racks of heat-treatable steel to mild steel structures
Inventor: COEHN WERNER
IPC: C21D9/50
Filed: 1964-12-11
Abstract: 1,087,346. Welding by fusion; altering physical properties. KIELER HOWALDTSWERKE A.G. Dec. 11, 1964, No. 50549/64. Headings B3R and B3V. A toothed rack 2 of a steel containing is welded to a mild steel member 1, e.g. a leg of a sea-going drilling platform, by heating the rack 2 to 400‹ C., covering the surfaces of the rack to be welded with a layer of overlapping beads 6 deposited from electrodes having a lime-fluoride type flux, hardening and tempering the rack 2 whilst maintaining said temperature, and joining the rack 2 to the member 1 by layers 7 deposited by " back-step " welding, each layer 7 being stretched by hammering and the temperature of the rack being maintained at at least 50‹ C. In " back-step " welding each weld is divided into a series of lengths and each successive length is welded in the reverse direction.
Patent GB-507220-A (GB)
Abstract: 507,220. Valve circuits for wireless reception; impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEALL, 0. E. Dec. 10, 1937, No. 34313. [Classes 40 (iii)] and 40 (v)] An arrangement for increasing the degree of modulation of a received carrier comprises a tuned circuit Ê, offering high impedance at the carrier, frequency, shunted wholly or in part by a sharply resonant device such as a crystal P. In the arrangement shown the output circuit is taken from across the circuit 0, which is also shunted by an adjustable resistance A. In a modification, Fig. 2 (not shown), the crystal and the output circuit are connected to an adjustable tapping on the inductance of the tuned circuit. The carrier should be first changed to a fixed predetermined frequency by heterodyning.
Patent GB-1177074-A (GB)
Title: Improvements in and relating to Filters
Inventor: DAVIS MAURICE
IPC: B01D46/10
Filed: 1965-12-01
Abstract: 1,177,074. Air filter. DAVIS INDUSTRIAL EQUIPMENT CO. Ltd. 5 Jan., 1967 [1 Dec., 1965], No. 50958/65. Heading B1T. An air filter comprises a sheet of medium 1, whose edges are folded back and secured to form recesses in which the edges of wire mesh stiffener 4 engage. The corners are cut off a rectangular sheet, and adhesive is applied to the inside of fold lines before folding, leaving the edges of the folded margins free of adhesive so that stiffener 4 is releasably engaged therein. The filter may be slid into channel sections (5, 6), extending along opposite sides of a duct. The medium 1 may be brokencell foamed plastics, knitted, woven or unwoven polypropylene or a combination thereof, and may be flameproofed. Sheet 1 and stiffener 4 may be corrugated. The stiffener may be removed and the filter medium washed, squeezed dry and reused.
Patent GB-1310278-A (GB)
Title: Methods of manufacturing steels with oriented grains for magnetic applications and products thus obtained
IPC: C23C10/60
Filed: 1970-10-27
Abstract: 1310278 Making magnetic steel CREUSOTLOIRE 27 Oct 1970 [3 Nov 1969] 51027/70 Headings C7A and C7D Grain oriented steel sheets are prepared from steel initially containing 2À8-3À5% Si by cold rolling and decarburisation annealing to less than 0À005% carbon; Al, Co, Ge or Si is then placed in contact with the sheet and the composite diffusion annealed followed by annealing to effect secondary recrystallization. In a preferred embodiment the steel is cooled with strip aluminium sufficient to provide 1-2% in the steel, and the combined coil diffusion annealed at 660-950 C, followed by recrystallization annealing at 950-1250 C.