baber/WOPTO huggingface dataset:
Patent GB-741578-A (GB)
Title: Metalliferous trisazo-dyestuffs and process for making them
IPC: C09B31/20
Filed: 1953-03-24
Abstract: The invention comprises copper and nickel derivatives of trisazo dyestuffs of the type R1-N=N-R2-N=-R3-N=N-R4, where R1 is the residue of an initial component free from hydroxyl groups, R2 is a benzene or naphthalene residue attached in 1 : 4 positions, R3 is a 1 : 4-benzene residue and R4 is either a sulphonated naphthalene residue free from amino groups or a 5-pyrazolone residue; the metal atom is attached by oxygen atoms to the residues R3 and R4 in positions vicinal to the azo linkage.  Preferred compounds contain 3-6 (desirably 3-4), sulphonic acid groups.  They are made by coupling diazotised R1NH2 with a p-coupling aniline or naphthylamine, rediazotising and coupling with a p-coupling aniline containing an alkoxyl group ortho to the amino group, diazotising again and coupling with an o-coupling naphthol-sulphonic acid free from amino groups or with a 5-pyrazolone.  The middle components are preferably coupled in the form of their methanesulphonic acid derivatives.  The final coupling may be accelerated by the addition of alcohol or pyridine.  The trisazo dyestuff may or may not be isolated before metallization.  Metallization is effected under conditions such that the alkoxyl group in R3 is hydrolysed.  There may be used nickel, cuprous or cupric salts or complex metal compounds such as those with ammonia, alkylamines or heterocyclic bases.  There may be added an excess of such base or ethanolamine.  The metallized dyestuffs give grey tints by dyeing and printing on wool, leather, linen, cotton and regenerated cellulose.  Examples show the preparation of the following dyestuffs:-(1) 2-napthylamine-4 : 5- disulphonic acid --> 1-naphthylamine-7-sulphonic acid -X cresidine --> (pyridine) 1-naphthol-4-sulphonic acid, coppered; (2) the aminodisazo intermediate of (1) --> (pyridine) 1-naphthol -4 : 8- disulphonic acid, coppered; (3) 2-naphthylamino-4 : 8-disulphonic acid - X 1-naphthylamine --> cresidine --> (pyridine) 1-naphthol -4 : 8-disulphonic acid --> 1-naphthylamine --> cresidine --> (pyridine) 1-naphthol -4 : 8-disulphonic disulphonic acid, coppered; (5) 2-naphthylamine -4 : 8- disulphonic acid --> 1-naphthylamine-7-sulphonic acid -X 2 : 5-dimethoxyaniline --> (pyridine) 1-naph-4- sulphonic acid, coppered; (6) sulphanilic acid -X 1-naphthylamine -7- sulphonic acid -X cresidine --> (pyridine) 1-naphthol-4-sulphonic acid; coppered.  A table is given of further dyestuffs, using as components (other than those mentioned above):-R1NH2: naphthionic acid, 2-(p-aminophenyl) -6- methylbenzimidazole sulphonic acid and N1-acetyl-benzidine-2-sulphonic acid; R2 residue: aniline, m-toluidine; R3 residue: o-anisidine; R4 residue: 1-naphthol-5-sulphonic acid and chromotropic acid.  A further example is given of the dyeing of cotton with the product of (1).  Other suitable components are listed.  Specification 644,883 is referred to.
Patent GB-126168-A (GB)
Title: Improvements in Water Tube Steam Boilers.
IPC: F22B21/12
Filed: 1918-05-15
Abstract: 126,168. Hawthorn, Leslie, & Co., R. & W., and Armstrong, R. B. May 15, 1918. Straight-tube type superheaters.-In a watertube boiler comprising upper and lower drums and a steam drum divided by partitions forming compartments into which superheating-tubes open, the compartments are connected by a pipe fitted with a valve which may be opened to place the compartments in direct communication with one another when the superheater is flooded. The steam drum d is connected by two sets of superheating-tubes g to bottom drums f, and is divided by longitudinal partitions h arranged between the tubes of each set, so that the steam which enters the outer compartments of the drum through pipes c passes downwards through the superheating tubes to the bottom drums and then upwards into the central compartment. The superheater is flooded by opening the valves m in pipes l connecting the bottom drums to the boiler drums a. The steam pipes c are connected by a pipe i fitted with a valve k. The superheating-tubes are arranged over one set and between the other set of the crossing sets e of generating tubes.
Patent GB-710805-A (GB)
Title: Flame supervisory equipment, especially for substantially non-luminous flames
IPC: F23N5/12
Filed: 1952-03-31
Abstract: 710,805. Controlling burners. LANDIS & GYR AKT.-GES. March 31, 1952 [April 5, 1951], No. 8171/52. Class 75 (1) Flame supervisory equipment responding to extinction of a flame to interrupt the fuel supply thereto comprises an ionization detector 1 consisting of two electrodes one having a large surface and extending into the cold core of the flame and the other having a small surface and immersed in a hot part of the flame, a resistance 4 connected in series with the ionization detector to form a first series circuit, and a second series circuit consisting of a glow discharge lamp 15, a winding 14 of a relay and the resistance 4, the whole being so arranged that on application of an alternating voltage 2, 3 across the first series circuit and of a direct voltage u 0  across the second series circuit a rectified voltage drop u 1  appears across the resistance, as a result of the effect of the flame on the ionization detector, in opposition to the direct voltage u 0 , thus preventing ignition of the glow lamp, whereas on falling away of the flame and therewith the rectified voltage u 1  the direct voltage u 0  is permitted to ignite the glow lamp so that direct current flows through the winding of the relay so as to move a change-over switch 17 into inoperative position to discontinue the fuel supply to the flame. The direct voltage u 0  is generated from the alternating voltage 2, 3 by a dry rectifier 6 and a smoothing condenser 9. A second winding 8 is arranged on the core of the relay and is energized by the direct voltage u 0  this energization alone being sufficient to move the change-over switch to the on position. When the glow lamp 15 is ignited, in the absence of a flame, current flows through the first winding 14 in the direction of the broken arrow and the resulting energization opposes the energization by the second winding 8 so that the switch is moved by its spring to the off position. A second glow discharge lamp 16 is included to form a series circuit with the resistance 4 and the first winding 14 and the rectified voltage u 1 , developed when a flame exists, ignites this second glow lamp whereby current flows through the first winding 14 in the direction of the unbroken arrow, the resulting energization assisting the second winding 8 to maintain the switch in the on position.
Patent GB-963264-A (GB)
Title: Improvements in or relating to non-aqueous isoprenaline compositions
IPC: A61K31/16
Filed: 1961-03-07
Abstract: Stable aerosol compositions comprise a mixture of substantially equal volumes of substantially anhydrous ethanol and one or a mixture of more than one halogenated alkanes having 1 or 2 carbon atoms and at least one fluorine atom per molecule, e.g. " Freon " (Registered Trade Mark) 11, 12 or 114, 0.1 to 0.3% w./v. isoproteronol hydrochloride, and at least 0.05% w./v. as corbyl palmitate (stabilizer). About 1% water may also be present. Examples relate to compositions comprising mixtures of Freon 12 and Freon 114 in varying proportions.  U.S.A. Specifications 2,721,010, 2,728,495 and 2,868,691 are referred to.ALSO:Stable aerosol compositions comprise a mixture of about equal volumes of substantially anhydrous ethanol and one or a mixture of more than one halogenated alkanes having one or two carbon atoms and at least one fluorine atom in the molecule, e.g. "Freon" (Registered Trade Mark) 11, 12 or 114, containing from about 0.1 to 0.3% w./v. isoproteronol hydrochloride and, as stabilizer, at least 0.05% w./v. ascorbyl palmitate.  About 1% of water may also be present.
Patent GB-126175-A (GB)
Title: Improvements in and connected with Internal Combustion Engines.
Inventor: DAVIDSON JOHN
IPC: F02B25/00
Filed: 1918-05-21
Abstract: 126,175. Davidson, J. May 2, 1918. Addition io 119,401. Valves.-In a two-cylinder engine, double-acting pump pistons k are each connected to a main piston e by a tubular rod f controlling pump admission and delivery orifices, the bottom pump space in one cylinder c being connected to the upper pump space in the adjacent cylinder. With the pistons in the position shown in Fig. 1, ports g in the left-hand rod f register with an inlet passage x; a charge enters through ports h, and a portion of it is conveyed to the upper end of the right-hand pump cylinder through ports m<1>, a passage n, and ports m. Similar ports and passages (not shown) are provided to place in communication the top of the left-hand pump cylinder and the bottom of the adjacent pump cylinder. Pump charges enter the combustion space when the ports g register with ports l. A modified construction is described in which a piston valve controls the inlet passages to the pumps.
Patent GB-1213191-A (GB)
Title: Particle-size classification process
Inventor: RUMPF HANS
IPC: B07B1/00
Filed: 1968-02-21
Abstract: 1,213,191. Upward current classifiers. H. RUMPF. 21 Feb., 1968 1[21 Feb., 1967], No. 8487/68. Heading B2H. In a classifying process for determining the particle size distribution of granular material, the material to be classified is fed to the lower part of a vertical classifying duct and is separated by means of an upwardly flowing current of classifying fluid into a fine fraction entrained by the fluid and a residual coarse fraction, the current flowing into the duct at a velocity which is uniform over the flow crosssectional area of the duct. The classifier shown in Fig. 1 has a cylindrical classifying portion 1 having a porous base 3 through which air supplied via a pipe 5 to a detachable closed portion 4, is deflected by the bottom surface of the portion 4 and flows upwardly and uniformly. The material to be classified is fed on to the base 3 and is spread uniformly thereon either by hand or, as shown, by a vibrating arrangement comprising springs 6 and a.c. electromganetic vibrators 7 which respectively support and vibrate the classifier. The fine fraction and the entraining current of air are accelerated out of the classifier by flowing through a conical portion 2 which opens into a filter chamber 8 in which the fine fraction is retained on a filter member 16 and from which the air is discharged into a duct 13 and thence to an outlet. Acceleration of the air may alternatively be provided by an annular passage of decreasing cross-sectional area defined between a cylindrical duct and an inverted cone whose apex projects into the duct. At the end of an operation the closed portion 4 and the base 3 are removed to recover the coarse fraction. The base 3 may be constituted by a filter paper or plate or a sieve. In Fig. 2, the classifying fluid is a liquid and the material, suspended in liquid of similar nature, is supplied through a pipe 10 closed at its lower end and provided with lateral outlet openings 15. The porous base 9 is conical and is given horizontal rotary and vertical oscillations by a connecting rod 17 so that the coarse material travels over the base towards one or more slots 11 which communicate with an annular discharge chamber 12.
Patent GB-369390-A (GB)
Title: Improvements in or relating to machines for grinding and abrading
IPC: B24B5/18
Filed: 1931-03-19
Abstract: 369,390. Centreless grinding. CINCINNATI GRINDERS Inc., 3058, South Street, Oakley, Cincinnati, Ohio, U.S.A.- (Assignees of Booth, C. and Haas, F. S. ; 3058, South Street, Oakley, Cincinnati, Ohio, U.S.A.) March 19, 1931, No. 8492. Convention date, March 28, 1930. [Class 60.] Guides and rests.-In a centreless or other grinding machine, the regulating wheel is rotated by a hydraulic motor at a slow speed during the regulating operation, and at a higher speed for trueing the wheel. The grinding wheel 19 is belt-driven at grinding speed from a lay shaft rotated by an electromotor. The regulating wheel 33 is mounted on a shaft 32, Fig. 3, driven by an hydraulic motor 40 comprising gears 47, 48. Normally the motor 40 drives a worm-wheel 58 clutched to a sleeve 61 splined on the shaft 32. The wheel 33 is driven at a higher speed for trueing by bevel gears 64 on a sleeve 66 clutched to the sleeve 61 on the shaft 32. The lay shaft drives an hydraulic pump 73, Fig. 10, supplying liquid and rotating gears 47, 48, Fig. 10. To effect stock removal from the workpiece, a slide 29 on which the regulating wheel is mounted is moved longitudinally of the bed to feed the workpiece to the grinding wheel by a hand-wheel 86 and screw 85 and by a fluid pressure mechanism, Fig. 5. A nut gear 94 on the screw 85 engages a rack 93 on a piston 105 controlled by a valve 92. The liquid flows from the pump 73, Fig. 10, through pipe 80 and through ports 96, 97, 98 to move the piston. The exhaust liquid flows through ports 99, 100, and the piston is moved rapidly to feed the regulating wheel to position. The ports 99 are then closed, and the regulating wheel is then fed slower to effect the stock removal. To withdraw the regulating wheel the valve 92 is shifted to connect ports 96, 107 and 97, 108. Trueing rotating tools.--For trueing the grinding and regulating wheels similar hydraulic mechanisms are used. The slide 29 supports a slide 114 and cylinder 115 with piston. The rod 117 of the piston supports a trueing tool 118 adjustable by a screw 121. The tool is moved across the wheel by the piston controlled by a. valve 124. For forming a contour on the wheel, the rod 117 and the slide 114 are moved relatively to the slide 29 by a cam 128 coacting with a cam follower 127, contact between the parts being maintained by hydraulic pressure.
Patent GB-582084-A (GB)
Title: Improvements in, or relating to, liquid fuel metering systems
IPC: F02B1/00
Filed: 1941-07-07
Abstract: 582,084. Centrifugal pumps. CLOTHIER, W. C., NAYLOR, B., and DUNNING, J. E. P. July 7, 1941, No. 8530. [Class 110 (i)] [Also in Group XXIX] A centrifugal pump used as a means for generating fluid pressure, in accordance with the speed at which the pump is driven, is liable to be irregular in action owing to the accumulations near the axis of air separated out of the operating fluid. To avoid this difficulty, the pump is caused to work against a back pressure which is always greater than the pump pressure so that the flow through the pump is always towards its axis. In the arrangement shown in Fig. 1, a fuel pump 11 delivers fuel to a hand-controlled valve 13 which is in series with a second valve 15 automatically controlled by a diaphragm 22 subjected to the pressure beyond the valve 15 in opposition to a pressure tapped by a pipe 21 from a centrifugal pump 16. The pump 16, the speed of which is a controlling characteristic, never generates a pressure equal to that of the pump 11, so that the flow in it is reversed. The flow is limited by a constriction 20. The connection 21 may be made in the pipe 18 between the pump and the constriction. The diaphragm 22, or equivalent capsule may control a pilot valve by which the fluid in the line 10 may be used in a servomotor to operate the valve 15. The effective radius of the pump may be varied by means of a disc 54, Fig. 4, which carries the outlet port 53. By turning the disc, the radial distance of tne port 53 from the axis is varied. Specification 429,682,. [Group XXVII], is referred to.
Patent GB-797211-A (GB)
Title: Improvements in and relating to the manufacture of footwear components
Inventor: DURSTON MAURICE HENRY
IPC: A43B21/32
Filed: 1955-03-25
Abstract: A heel seat and shoe shank stiffening member is moulded from fibrous or woven material, such as glass or asbestos fibres impregnated with a thermosetting resinous compound, such as a phenol-formaldehyde resin, to have a hard central area, which may include a ductile member such as a strip of soft iron, and a less hard peripheral area to receive fastening means.  Shaped and impregnated felt layers with the fibres lying in selected directions are placed in suitably shaped moulds and subjected to heat or heat and pressure to cure the central area rock hard while the general shaping is effected.  The heating is preferably by a high frequency electric field the electrodes producing which are adjustably placed in the upper mould.  As a second stage the peripheral areas are partially aired under reduced pressure and electric resistance heating.  In some cases the second stage may be omitted conduction of heat from the central area or pressure differences being relied on to produce reduced hardness towards the edges.  The stiffening member may alternatively be moulded in a single operation from a heterogeneous mass of fibres and thermosetting resinous material, the ductile member being located centrally by dowels extending from the bottom mould.
Patent GB-662362-A (GB)
Title: Improvements in or relating to drills and bits therefor
IPC: E21B10/02
Filed: 1949-04-01
Abstract: 662,362. Drills. GULLICK, Ltd., and SEAMAN, T. April 1, 1949, No. 885'4/49. Addition to 625,362. Class 83 (iii). The drill of the parent Specification is modified by locating at least one of the cutting tips 14 closer to the axis XX of the drill than the other 13, or others. The tips 13, 14 and spacing pieces 18 are secured in the head 10 in a socket 16 which is disposed eccentrically in relation to the axis X-X. An abutment 20 may be provided to locate the tip 14 which may have its inner edge 19 extended to or beyond the axis X-X so as to remove the core C.
Patent GB-752924-A (GB)
Title: An improved fuel injection pump for injection combustion engines
IPC: F02M59/44
Filed: 1954-03-26
Abstract: 752,924. Fuel-injection pumps. SATZGER, E. March 26, 1954 [April 7, 1953], No. 8877/54. Class 102(1). The piston 6 of a fuel -injection pump is actuated by a cam 3 through a follower 5, the return stroke being effected by a spring 14. A sleeve 15 has a flange 16 engaged by the spring 14 and abuts a shoulder on a supporting cap 7 that has claws 10 engaging the head of the piston. Alternatively the sleeve 15 and the supporting cap 7 may be united by pressing.
Patent GB-1371096-A (GB)
Title: Water dispersible products
IPC: C08L1/28
Filed: 1971-09-15
Abstract: 1371096 Moulding water-dispersible films and sheets W H HALE 15 Sept 1971 [15 Sept 1970 6 April 1971] 44052/70 and 8898/71 Headings B5A and B5B A process for preparing a water-dispersible article, e.g. sheet or film comprises preparing an aqueous slurry comprising a water-soluble or water-dispersible cellulose ether, a finely divided organic and/or inorganic filler and water; forming the slurry into a desired form by extrusion or moulding, and drying the extruded or moulded slurry to remove water therefrom. Specified cellulose ethers include hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, and sodium carboxymethyl cellulose. Specified organic fillers include bleached cellulose in powder or fibre form and wood flour. The inorganic filler may be talc or titanium dioxide. The aqueous slurry may also include a volatile organic solvent, a water-soluble or water dispersible polymer of acrylic acid, methacrylic acid, or acrylamide, a mould release agent, e.g. a polysiloxane, and/or a plasticizer, e.g. CaCl 2 . Preferably, a film of the slurry is formed upon a support, e.g. of plastics material such as polytetrafluoroethylene, dried thereon, and stripped therefrom.
Patent GB-238485-A (GB)
Title: Solutions of cellulose esters
IPC: C08J3/09
Filed: 1925-04-03
Abstract: Solutions of cellulose esters, such as lacquers, are prepared with the aid of an alkyl ether of ethylene glycol, particularly the mono- and di-methyl, ethyl and propyl ethers, mono-allyl ether and di-isobutyl ether.  The ethers dissolve cellulose nitrate readily; when mixed with other substances they form powerful solvents for cellulose acetate, thus a lacquer is obtained by simple solution of cellulose acetate in a mixture of the mono-ethyl ether and ethylene dichloride, and to the solution may be added a high-boiling-point solvent such as glycol mono- or di-acetate, acetylene tetrachloride or diacetone alcohol. Auxiliary solvents or diluents may be added to the solutions; thus, to a solution of cellulose nitrate in the mono- or di-ethyl ether, a mixture of these, benzene, acetone, methyl or ethyl alcohol, or naphtha may be added.
Patent GB-567802-A (GB)
Title: Improvements relating to electrically-heated soldering irons
IPC: B23K3/03
Filed: 1943-06-04
Abstract: 567,802. Soldering-irons. ROCHMAN, A. I. June 4, 1943, No. 8961. [Class 83 (iv)] [Also in Group XI] An electric soldering-iron of the bench type has between the base and the bit a flexible member of sufficient flexibility to allow the bit to be moved by the operator to various positions with respect to' the base, but of sufficient stiffness to withstand displacement by the pressures normally obtaining between the work and the bit. The tool comprises a hollow metal base 1 with cover 2 and switch 4 and with a boss 6 into which is screwed a ferrule 7 from which extends a length of tubing 8 comprising concentric helical wire coils which may be bent without acquiring a permanent set. A ferrule 9 secured to the other end of the tubing fits into a metal tube 10 which receives the shank of the bit 12. The assembly of tube, bit and heating element may be as described in Specification 556,609, and carries the leads 14 which are provided with nesting porcelain beads supported by washers in the portion surrounded. by the flexible member and which at their lower ends are connected to the switch. The iron may include an illuminating lamp and a rapid heating device, as described in Specification 564,388, [Group XI]. The support for the bit may consist of a rigid tube for a distance from the base. The iron may be secured to a wall instead of to a bench top.
Patent GB-386173-A (GB)
Title: Improvements in and relating to aquariums
IPC: A01K63/06
Filed: 1932-03-29
Abstract: An aquarium is provided with an electric heater controlled by a thermostat, and an aerating valve.
Patent GB-545349-A (GB)
Title: Improvements in and relating to electric immersion heaters
IPC: H05B3/06
Filed: 1941-07-18
Abstract: 545,349. Electric immersion heaters. BRITISH THOMSON-HOUSTON CO.. Ltd. July 18, 1941, No. 9088. Convention date, July 19, 1940. [Class 39 (iii)] An immersion heater, applicable for insertion in the conduit between the engine jacket and the radiator in a motor vehicle. comprises a unit 10 of the sheathed wire type in which the wire is secured to inner terminals 14, Fig. 3 (not shown) over which outer terminals 15 are compressed. The terminals project through and are soldered to a support 18, and also project through a circular opening in the rubber radiator coupling 20, of a diameter sufficient to receive them. A hollow member 24 surrounds the terminals and its base is screwed to the support 18, the two co-operating parts being curved to a shape approximating that of the rubber coupling 20. which is clamped between them in a liquid-tight manner.