baber/WOPTO huggingface dataset:
Patent GB-1143735-A (GB)
IPC: C08G63/82
Abstract: 1,143,735. Polyesters. CHEMISCHE WERKE HULS A.G. 29 June, 1966 [30 June, 1965], No. 29173/66. Heading C3R. Polyesters are made by reacting a polycarboxylic anhydride and a cyclic ether in the presence of a complex of a Lewis acid and certain organic halogen compounds. Reaction is effected at 100-150‹ C. in the melt phase or in the presence of a polar solvent (e.g. nitroethane or nitrobenzene). Specified Lewis acids are halides of Zn, Cd, Hg, B, Al, Sn, Ti, P, As, Sb, or Fe. The halogen compounds are certain alkyl halides, aralkyl halides, acid halides and sulphonyl halides and also picryl chloride, epichlorhydrin and triethyloxonium fluoride. Many polycarboxylic anhydrides and cyclic ethers are specified. In examples polyesters were made by reacting (1)-(3) succinic anhydride and tetrahydrofurane; (4) phthalic anhydride and tetrahydrofurane; (5) succinic anhydride and oxacycloheptane.
Patent GB-1225333-A (GB)
IPC: C07D265/32
Filed: 1969-04-03
Abstract: 1,225,333. 2,4,6-Triiodo-benzoic acid derivatives. BRACCO INDUSTRIA CHIMICA S.p.A. 3 April, 1969 [2 May, 1968], No. 17681/69. Heading C2C. [Also in Division A5] Novel compounds of the general formula in which Y denotes a single bond or -CH 2 -; X denotes C 2-3  alkylene which may be interrupted by an O atom; and R denotes H, a heterocyclic substituent A, amino, acylamino, acylaminomethyl, N-alkyl-acylamino, N-alkylcarbamoyl- or -NH-CO-alkylene-CONH-B, in which the alkylene may be interrupted by two or more O atoms and B has the structure indicated in the formula, may be obtained by reacting a compound of the formula in which R<SP>1</SP> is H, NO 2 , NH 2 , acylamino, acylaminomethyl, N-alkyl-acylamino, N-alkyl-carbamoyl or -NH-CO-alkylene-CO-NH-G, where G is as shown in the above formula, and X 2 , X 4  and X 6  denote H or halogen, with a reactive derivative (e.g. acid halide, anhydride or ester) of an acid of formula HO-CO-XCH 2 -Z (where Z is the reactive radical of a strong acid) and cyclizing in the resultant acylamino derivative the group or groups -NH-CO-X-CH 2 -Z by treatment with alkali, and, if necessary, converting the product obtained in one of the steps (i) or (ii) below and/or one of the steps (iii) or (iv) or (v) below into the desired end product of Formula (I); (i) when X 2 , X 4  and X 6  are halogens other than iodine the 2,4,6-unsubstituted benzoic acid derivative is obtained by reductive dehalogenation of X 2 , X 4  and X 6  followed by step (ii); (ii) when X 2 , X 4  and X 6  are H, the product is triiodinated with ICl, HICl 2  or alkali metal-ICl 2 ; and/or (iii) when R<SP>1</SP> is NO 2  it is reduced simultaneously with (i) or separately to NH2, optionally followed by (iv) or (iv) and (v) below; (iv) when R<SP>1</SP> is amino, the compound is treated with a reactive carboxylic acid derivative to form an acylamino group; (v) when R<SP>1</SP> is acylamino the product may be N-alkylated on the amide group, and optionally converting the acid into its non-toxic and/or amine salt.
Patent GB-1227759-A (GB)
IPC: F24H9/18
Filed: 1967-08-18
Abstract: 1,227,759. Regulating air supply; air supply to solid fuel fired boilers. TRIANCO Ltd. 12 Aug., 1968 [18 Aug., 1967], No. 38090/67. Headings F4B and F4N. In a solid fuel fired boiler having a fire bed supporting plate 9, air for combustion is supplied by a fan 13, and a flap 14 is counterweighted so as to be biased to a position closing the air inlet. When the fan 13 is running, the flap 14 opens against the bias, and stops 17, 15 adjust the open and closed positions of the flap. Secondary air enters a gallery 18 at the rear of grate through an opening 19 when the fan is running, and is fed above the fuel bed through low resistance openings 21. Inlets 22 from the exterior enable a small amount of secondary air to enter the combustion chamber when the fan is not running.
Patent GB-1228401-A (GB)
IPC: G01L9/00
Filed: 1968-05-16
Abstract: 1,228,401. Measuring pressure electrically. SPERRY RAND CORP. May 16, 1968 [May 24, 1967], No.23295/68. Heading G1N. In pressure measuring apparatus a pressure difference between the faces of a peripherally mounted diaphragm 1 causes it to deform thereby altering its natural frequency of vibration which is measured. As shown in Fig. 1, the diaphragm 1 is welded round its periphery to, or fabricated as part of, a hollow tubular structure 2 and separates an evacuated cavity 5 from a cavity 9 to which the pressure P to be measured is communicated through a tube 10. A cylindrical permanent magnet 12 is attached to the centre of the diaphragm 1 and cooperates with a sensing and driving coil 14 connected in a feedback circuit, Fig. 2 (not shown), to form an electromechanical oscillator oscillating at the instantaneous resonant frequency of the diaphragm 1. The diaphragm may be made of beryllium copper. A compensating coil 22 is provided. Leads 18 and 23 pass through glass seals 24. Alternative techniques for driving and detecting the resonant vibrations of the diaphragm 1 are: moving coil and fixed magnet, electrostatic driving with variable capacity detection and Piezo-electric techniques. The invention may be used in altitude reporting systems.
Patent GB-1230888-A (GB)
IPC: C08F210/00
Filed: 1969-02-07
Abstract: 1,230,888. Exo - 5 - alkenyl - 2 - norbornene copolymers. SUMITOMO CHEMICAL CO. Ltd. 7 Feb., 1969 [8 Feb., 1968], No. 6648/69. Heading C3P. A linear copolymer comprising exo - 5 - alkenyl - 2 - norbornene units and units derived from ethylene or an α-ethylenically unsaturated hydrocarbon having from 3 to 20 carbon atoms may be prepared by copolymerizing the monomers in the presence of a catalyst comprising (1) an organo-aluminium compound having the formula AlR n X 3-n , wherein R represents a hydrocarbon radical, X represents a halogen atom and n is an integer from 1 to 3; and (2) at least one vanadium and/or titanium compound, wherein the vanadium or titanium is in the trivalent or a higher valency state. In the examples ethylene, propylene, exo - 5 - isopropenyl - 2 - norbornene and exo - 5 - (2- butenyl - ) 2 - norbornene are copolymerized in the presence of n-heptane, hydrogen, tetrachloroethylene, ethylaluminium sesquichloride, vanadyl trichloride, trihexylaluminium, titanium tetrachloride, diethylaluminium chloride and triethyl orthovanadate. The polymerization was arrested with methanol containing 2,6 - di - t - butyl - p - cresol and the copolymer cured and compounded with #- phenylnaphthylamine, stearic acid, zinc white, carbon black, sulphur, tetramethylthiuran sulphide and mercaptobenzothiazole.
Patent GB-1232938-A (GB)
IPC: F16L19/04
Filed: 1969-03-21
Abstract: 1,232,938. Pipe couplings. WAVIN N.V. 21 March, 1969 [28 March, 1968], No. 14859/69. Heading F2G. A pipe section 1 having a conically widened end portion 2 is engaged over the frusto-conical outer wall portion 6 of a tubular connecting sleeve 5 and a plurality of bush members 10, 11, e.g. semicircular members, having substantially part-conical outer surfaces are engaged around the pipe portion 2, a locking ring 12 being axially forcibly engaged around the bush members to hold the connection together and urge the pipe section against the sleeve; the latter has a circumferential recess 8 in which is located sealing means 9. As shown, two pipes 1, 3 are connected by a single sleeve 5. The pipes and sleeve may be of polyethylene. In a modification, the sleeve has at one end a flange which is pressed by bolts against the flange of a valve.
Patent GB-1238029-A (GB)
IPC: H02M1/092
Filed: 1967-10-26
Abstract: 1,238,029. Photo-electric arrangements. ENGLISH ELECTRIC CO. Ltd. Oct.25, 1968 [Oct.26, 1967], No.48773/67. Heading G1A. [Also in Divisions G2 and H2] Each of a plurality of light sources is coupled to every one of a plurality of light-activated semiconductors by an optical coupling comprising bundles of optical fibres. The coupling is made by unsheathing the ends of the fibre optic bundles coupled to the semi-conductors and rubbing the fibres with a polythene rod to fan them out electrostatically. The fans are stacked on top of each other while the fibres are picked out with tweezers and hung over three U-shaped hooks. The fibres are then interwoven to avoid local bright spots and the whole crossover complex is potted in epoxy resin. Extra fibres may lead from the light sources to points where there functioning may be monitored. The invention may be used for controlling a plurality of strings of thyristors by coupling a plurality of light activated silicon controlled rectifiers to a plurality of GaAs lasers.
Patent GB-1238064-A (GB)
IPC: B01D53/50
Filed: 1968-05-14
Abstract: 1,238,064. Removal of sulphur oxides from flue gases. NORTH AMERICAN ROCKWELL CORP. 14 May, 1968 [15 May, 1967], No. 22915/68. Heading C1A. Sulphur dioxide and sulphur trioxide are removed from combustion (flue) gas by treating with a molten salt mixture containing alkali metal carbonates at a temperature of at least 350‹ C. to form alkali metal sulphites and sulphates respectively. The alkali metal carbonates may be regenerated for recirculation by treating the sulphites and sulphates with a gas mixture containing hydrogen, and either carbon monoxide, carbon dioxide or a mixture of carbon monoxide and carbon dioxide at a temperature of at least 400‹ C., preferably 400-650‹ C., when hydrogen sulphide is formed as a final product. The molten salt mixture is made up from one, two, or three alkali metal carbonates either with or without diluent salts, subject to the condition that at least two alkali metals are present. It preferably has a melting temperature of 350‹ to 450‹ C. and may contain as little as 2 mole per cent of carbonate. A preferred mixture contains, in mole per cents, 45 Œ 5 of lithium carbonate, 30 Œ 5 of sodium carbonate and 25 Œ 5 of potassium carbonate. Another suitable mixture contains, in mole per cents, 15-60 K<SP>+</SP>, 40-85 Li<SP>+</SP> and 0-20 Na<SP>+</SP> as cations and 10-98 Cl- and 2-90 CO 3 = as anions. The alkali metal sulphate content of the salt mixture passed to the regeneration stage is preferably 10-30 mole per cent. The gas mixture used in the regeneration stage is usually water gas, producer gas, coal gas or carburetted water gas but may be made by mixing the component gases or may be prepared in situ in the reaction vessel by admitting hydrogen and carbon dioxide or steam and carbon monoxide.
Patent GB-1238542-A (GB)
IPC: B63B27/24
Filed: 1968-06-28
Abstract: 1,238,542. Loading and unloading vessels. AIR LOGISTICS CORP. 28 June, 1968 [14 June, 1967], No. 31094/68. Heading B8E. For the loading/unloading of fluids to or from a vessel, a submerged buoy 10 having two disengageable portions 18, 21 includes a guide sleeve 34 which slidably receives a vertical pipe 38 secured to a cover 32, a resilient seal being provided to form a rotatable and fluid-tight seal between the sleeve 34 and the pipe 38. The sleeve 34 is connected by hoses 62 and a submarine pipeline (not shown) to shore installations. The other end of the pipe 38 leads into a horizontal pipe 40 connected, via a pipe 70 supported by floats 72 and a buoy 78, to a flexible member 82 provided with a cover 84 to prevent entry of water. The pipe 70 is made of reinforced laminated plastic and has the property to assume a straight position after deformation, as indicated in phantom in Fig. 2 (not shown). The pipe 70 is connected to a further buoy 86 by a semi-flexible rod 94, the buoy being releasably connected to a hose pickup.line 102 and to a mooring line 58 connected to the buoy 10. In use, when a ship 60 engages the rod 94, the buoy 86 is pulled towards the ship and a disc 89 on the buoy when engaged by the ship causes a mast 90 of the buoy to tilt towards the ship to enable the mooring line 58 and pickup line 102 to be grasped by a crew member. The ship is then moored to the buoy 10 and the hose 82 connected to pumping means on the ship. If the buoy 10 is located in shallow waters the guide sleeve 34 is omitted, Fig. 5 (not shown). Water in a chamber 43 of the upper portion 18 of the buoy provides that this portion engages the lower anchored portion 21, the two portions then being secured by latches 24. If the upper portion 18 is to be inspected or repaired air is blown into the chamber 43 the latches 24 are released and the portion 18 rises such that the cover 32 is above the waterline. A bushing 36 on the sleeve 34 engages the lower end of a conical aperture 16 in the portion 21 to keep the two portions aligned. Reference has been directed by the Comptroller to Specification 1,238,543.
Patent GB-1238724-A (GB)
IPC: B01J8/12
Filed: 1968-08-26
Abstract: 1,238,724. Treating grain. HONIG N.V. 26 Aug., 1968 [8 Sept., 1967], No. 40644/68. Heading A2Q. [Also in Division B1] A reactor for treating grain comprises plates 4 and 5 in which the perforations 6 are located symmetrically with respect to lower perforations 7, and perforations 7 are located symmetrically with respect to outlet 3. Funnels 12 and outlet conduit 9 may be provided.
Patent GB-1238809-A (GB)
IPC: A01N39/02
Filed: 1969-12-19
Abstract: 1,238,809. N-methyl phenyl carbamates. CIBA-GEIGY A.G. 19 Dec., 1969 [20 Dec., 1968], No. 61930/69. Heading C2C. [Also in Division A5] The invention comprises compounds of the formula wherein R 1  and R 2  may each represent a hydrogen atom or an alkyl C 1-4  radical with the proviso that they are not simultaneously hydrogen atoms. They may be prepared by reacting the corresponding phenol with methyl isocyanate, an N-methyl carbamic acid halide or with N- methyl phenyl carbamate, or with carbonyl chloride followed by reaction with methylamine. The compounds have pesticidal activity. 2 - Butynyloxyphenol and 2-(1-butyn-3-yloxy)- phenol are prepared by hydrolysis of their ptoluene sulphonic acid esters.
Patent GB-1239077-A (GB)
IPC: B65D75/28
Filed: 1968-07-12
Abstract: 1,239,077. Receptacles; packaging. C. W. VOGT. 12 July, 1968, No. 33271/68. Headings B8C and B8P. A receptacle 20 comprises two receptacle bodies 23 secured by inturned flaps 28, 30, having lines of adhesive (32, Fig. 1), to a cover sheet 21, having lines of adhesive 22. The receptacle bodies 23 include further flaps 27, 29, also having lines of adhesive (32), which are turned inwardly after each receptacle body 23 has been filled with activated charcoal (M, Figs. 6 and 7) and this charcoal compacted therein. To close the receptacle 20 the filled receptacle is folded along the centre line of the cover sheet 21 until the receptacle bodies are in mating contact with each other so that the inturned flaps 27, 29 on one receptacle body may be secured to the corresponding flaps 27,29 on the other receptacle body. The peripheral portions of the cover sheet 21 are then folded around the receptacle bodies 23 and into lapped sealed engagement so as to completely enclose the receptacle bodies 23. In an alternative embodiment the receptacle comprises only one receptacle body (23, Fig. 13) secured to a cover sheet (106). In this embodiment after the receptacle body (23) has been filled with activated charcoal, the flaps (27) are folded inwardly, a separate panel (108) is placed in overlying relation to the receptacle body (23) and adhered to the flaps (27). To complete the closure the flaps (29) are folded over the panel (108) and the cover sheet (106) folded around the receptacle body. In order to facilitate shipment and storage of either of the preceding receptacles in their empty condition the receptacle body or bodies can be folded flat relative to the cover sheet. The receptacle bodies are formed from rigid paperboard and the cover sheet is formed from paper such as is normally used in the manufacture of paper bags. The receptacle bodies may be filled with activated charcoal by means of a vacuum, by use of gaseous pressure or by a combination of both. Alternatively the activated charcoal may be fed to the receptacle bodies under gravity. When the receptacle body or bodies are filled by a differential gaseous pressure filler, the filler seals an open end of each receptacle body. This filler has a filter screen forming part of the temporary receptacle body closure, the ratio of the screen area to the volume of the receptacle body being at least as high as 0.75 to 1.
Patent GB-1250692-A (GB)
IPC: D03D51/34
Filed: 1969-11-13
Abstract: 1,250,692. Weft stop-motions. E. SICK [trading as ERWIN SICK]. 13 Nov., 1969 [25 Nov., 1968], No. 55509/69. Heading D1E. A weft detector in a shuttle comprises an eye 15 through which the weft from the bobbin 12 passes, the eye being pivoted about an axis which intersects the longitudinal axis of the bobbin and being turned about this axis by the ballooning weft as it is drawn off the bobbin. A masking plate 17 carried by an arm 16 of the eye normally masks reflectors 18 when weft is being drawn off so that a photoelectric cell 26 forming the sensing device of a loom stop motion is not illuminated. A permanent magnet 19 helps to keep the eye stable in its normal vertical position. If weft is absent, the eye tilts when the shuttle is braked at the end of the pick and remains tilted for the next pick. The mesh 17 is thereby inoperative and the cell 26 is illuminated, whereby the loom stop motion is operated. Sensing devices may be provided at each side of the loom.
Patent GB-1251538-A (GB)
IPC: B29C48/90
Filed: 1969-07-25
Abstract: 1,251,538. Tubular films; solidification with liquid. POLYMER PROCESSING RESEARCH INSTITUTE Ltd. 25 July, 1969 [26 July, 1968], No. 37481/69. Heading B5B. A tubular film is shaped by extruding a polymer solution or melt downwardly from an annular die 11, inflating the tube, and coagulating or solidifying the film by passing it through and in contact with a cylindrical net 14 which is in contact with a supply of coagulating or quenching liquid, e.g. a vessel 15 as shown, the coagulating liquid flowing down the net in a turbulent flow due to the meshes and contacting the tubular film; the weight of the film and the downwardly flowing liquid is balanced by the frictional resistance between the film and the net by adjusting the tension of the net to adjust its diameter. The coagulation liquid vessel 15 includes a bottom plate 13 of rubber sheet, having a central circular hole of smaller diameter than the tubular film, and the upper end of the cylindrical net 14 is passed through the hole and stretched over the rubber plate 13. A ring 19 of larger diameter'than the tubular film is fixed at the lower end of the net, and downward forces are applied to the ring to impart tension to the net, thus causing deformation of the rubber plate 13 to a funnel-shape and expansion of the hole to allow the passage of the tubular film into the net. Initial coagulation of the outer surface of the film takes place by contact with the liquid in the pool 17 formed in the funnel, and may be assisted by a short fine mesh net or skirt hanging inside the top of the net 14. Weights 20 suspended from the ring 19 are adjusted, or the ring 19 is twisted, to adjust the tension and diameter of the net. Additional expansion rings may be inserted in the net to prevent the diameter from becoming too small. After coagulation or solidification the tubular film is flattened between guide plates 23 and passed through pinch rollers 24 to remove excess liquid. Examples relate to films of polypropylene, high density polyethylene, high impact polystyrene and polyacrylonitrile, the quenching or coagulating liquid being water in each case.
Patent GB-1251645-A (GB)
IPC: F16L23/08
Filed: 1968-02-07
Abstract: 1,251,645. Pipe couplings. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 5 Feb., 1969 [7 Feb., 1968], No. 6172/68. Heading F2G. A coupling for coaxial pipes 11a, 12a comprises, flanges 11, 12 having parallel front faces 11b, 12b and rear faces 11d, 12d, backing rings 21, 22, and a pair of diametrically opposed shells 15, 16 having co-operating recesess, defined by planar surfaces 19, 20 and part cylindrical surfaces 18, and means, such as studs and nuts 15a, 15b, for clamping the shells together to enclose the flanges and backing rings. The latter have flat front faces for cooperating abutment with the rear faces 11d, 12d of the flanges and dihedral rear faces for cooperating abutment with the complementarily inclined planar faces 19, 20 of the shell recesses; on clamping the shells together the dihedral faces of the backing rings and surfaces 19, 20 react to urge the front faces 11b, 12b together. As shown, a gasket 13 is disposed between the flanges which are surrounded by an aligning sleeve 14. The rings 21, 22 may be in two parts to facilitate assembly on the pipes, and the shells may have cooling fluid ducts therein.
Patent GB-1251849-A (GB)
IPC: B25C1/14
Filed: 1969-06-05
Abstract: 1,251,849. Fastener driving tool. OMARK INDUSTRIES Inc. 5 June, 1969 [18 June, 1968], No. 28486/69. Heading B4C. A fastener driving tool includes a barrel 14 movable longitudinally relative to a housing 10 and pivotable about pin 64 to a position defined by retaining member 68. A piston retractor 76 includes a collar slidably mounted on the barrel, a member 82 extending into the barrel bore through a slot 72, and two handles 78. Piston 22 includes an ejector 86. The tool is cocked by pressing the muzzle end of the barrel against a workpiece, and thus moving breech block 16 against pressure of spring 56 to a position in which a sear pin 44 can be engaged by a trigger bar 54 when the trigger 60 is squeezed. The bar 54 is pivoted to the trigger and biased to the position illustrated by spring 59. In the event that the trigger is squeezed before the tool is cocked movement of the breech block will cause the bar to pivot in a clockwise direction. After firing the barrel is moved forwardly until pin 64 abuts the rear end of slot 66, and it is then pivoted to the position of Fig. 5. Manual movement of the retractor returns the piston to its initial position and causes ejection of a cartridge from chamber 36. The tool is then reloaded, the retractor is returned to the position of Figs. 1 and 5 and the barrel is pivoted to seat on the housing. The handles, when the barrel is seated on the housing, are located in recesses 90 and the lower part of the retractor is located in a recess 92. A recess 102 receives a loosely coil roll of sheet metal which forms a muffler. A stop 74 is provided should the piston be overdriven.
Patent GB-1252954-A (GB)
IPC: B22D39/00
Filed: 1969-04-24
Abstract: 1,252,954. Casting machines. AEG-ELOTHERM G.m.b.H. 24 April, 1969 [24 Sept., 1968], No. 20996/69. Heading B3F. [Also in Division H2] A method of casting metered quantities of liquid metal from a travelling field electromagnetic conveyer comprises controlling the rate of casting so that a maximum pouring rate is obtained and thereafter continuously reducing the pouring rate until a predetermined quantity of metal has been poured. The maximum pouring rate may occur at the start of casting or subsequent to the start.  - The electrical circuitry for controlling the conveyer is described (see Division H2). The conveyer may be used to supply predetermined melt quantities to chill moulds, pressure diecasting machines and casting belts comprising moulds carried on a belt. When casting pigs, the maximum flow rate of melt is maintained until shortly before the predetermined melt quantity has been delivered when the flow rate is rapidly reduced to avoid dribbling of the molten metal from the pouring spout.