baber/WOPTO huggingface dataset:
Patent GB-240697-A (GB)
Title: Improvements in locomotive and like boiler feed injectors
IPC: F04F5/46
Filed: 1924-07-01
Abstract: 240,697. Friedmann, L., Blauhorn, E., and Deutsch, H. July 1, 1925. Giffard injectors; regulating or controlling action; nozzles.-In boiler-feed injectors which are operated by exhaust and live steam or by live steam only the pipe leading to the live steam cone communicates with a chamber containing a non-return valve which is moved against its seat under the influence of the live steam, thereby opening the water admission valve of the injector and closing a discharge opening for the condensate. In the arrangement shown, live steam is supplied through the main and auxiliary pipes 20, 22 communicating with the inner and outer walls respectively of the nozzle 7, the exhaust steam which is supplied through the pipe 13 passing into the chamber 3 and to the injector nozzle 8. The live steam at reduced pressure from the pipe 22 enters a chamber 24 through a passage 23 and forces the non-return valve 25 against the seating of the opening 26. By this movement of the valve 25, the valve 27 is opened against the action of its spring and water is admitted from the tender of the locomotive through the pipe 28 to the water chamber 4 and cone 9. In a modified construction, the pipe 22 is led directly to the chamber 24, which it traverses before flowing to the live steam nozzle. Specification 240,900 is referred to.
Patent GB-290703-A (GB)
Title: Improvements in or relating to steam separators and the like
IPC: F22B37/26
Filed: 1927-10-10
Abstract: 290,703. Cockburns, Ltd., and Mac- Nicoll, D. Oct. 10, 1927. Separators.-In a separator or strainer of the kind in which the steam or other fluid passes between the turns of helically coiled wire 7 or the meshes of wire gauze or netting, the wire is supported on a skeleton frame 2 which is held in position in the fluid passage by a flange 10 engaging in recesses in the wall of the passage and in a cover 5. The wire is wound in a helical groove on the outer surface of a conical skeleton frame which is surrounded by an outer skeleton frame 1, the frames being secured together at their smaller ends by a bolt 9. Screwed pins 12 engaging in recesses in the outer frame prevent relative movement of the frames. In a modification, wire netting is wrapped around a single conical, cylindrical or other shaped skeleton frame.
Patent GB-304597-A (GB)
Title: Improvements in or relating to photographic sensitizing processes
IPC: G03C1/74
Filed: 1929-01-18
Abstract: 304,597. Roehrich, C. Jan. 21, 1928, [Convention date]. Plates and films; bichromated colloid processes. -In the impregnation of plates or films, coated with a colloid such as gelatin or glue, with aqueous or aqueous-alcoholic sensitizing solutions containing chromate or other metal sensitizing salts, the presence, on drying, of crystal sediment on the surface of the colloid layer is prevented by treating the impregnated layer, either before or after drying, with an aqueous solution containing alcohol, for example 10 per cent of alcohol.
Patent GB-319313-A (GB)
Title: The regulation of the electric potential of long lines
IPC: H02J3/16
Filed: 1929-01-18
Abstract: 319,313. Siemens - Schuckertwerke Akt.-Ges. Sept. 20, 1928, [Convention date]. Transmission conductor arrange ments; regulation, automatic; systems depending on two or more machines.-In arrangements f o r compensating the potential changes consequent on load changes in long transmission lines by means of wattless-current devices spacedalong the line at different stations, these devices are so automatically controlled by regulators directly sensitive to the ratio of the voltage E to the current J in the line that #L/C is maintained equal to this ratio, where Land C represent respectively the effective series reactance and the reciprocal of the effective parallel reactance of the line, these reactances including the effective reactance of the compensating devices and of consumers. The voltage is thus kept constant over the line as the current changes. In systems where the generators are regulated to constant potential, regulators for the wattless-current devices may be sensitive to current only, the coil effecting the controlling movement of these regulators being supplied with current proportional to the current J. The current J may be taken as the total or the wattful current in the line. The compensating devices may be in parallel or series to the line or both in parallel and series, and may be adjustable choking coils or oondensers or synchronous or asynchronous machines the excitation of which is controlled. When inductive compensating devices in parallel to the line are used, the inductance Lp of the devices is regulated according to the formula Lp = 1/#(C<1>-L<J2>/E2) where L, C<1> are the series inductance and parallel capacity of the line itself and # = 2# times the frequency. In one arrangement', the rotatable disc 1 of the current relay 3 controls directly, or through an electromagnet. The rheostat 4 in the excitation circuit of the synchronous machine 2 in parallel to the lines 1. The machine is regulated so that its stator current is equal to E# (C<1> - L <J2>/E2) When series compensating devices of capacity Cr are used Cr = 1/#<2>(L<1>-C<E2>/J2) where L<1> and C are the series inductance and parallel capacity of the line.
Patent GB-212040-A (GB)
Title: Improved wrapper
IPC: B65D65/40
Filed: 1923-10-12
Abstract: 212,040. Donaldson & Filer, Ltd., and Filer, L. B. Oct. 12, 1923. Wappers.-A wrapper comprises a panel 1 of corrugated paper mounted on a larger outer sheet 2 of waxed paper, leaving a margin 3 all round the panel 1. Dry strips 4 are coated with adhesive for securing the panel to the backing. The outer - wrapper 2 may be printed in one or more colours.
Patent GB-1521641-A (GB)
Title: Electromagnetic fuel injectors for internal combustion engines and method of manufacturing them
IPC: F02M61/16
Filed: 1977-01-18
Abstract: 1521641 IC engine fuel injectors SUD MAINTENANCE 18 Jan 1977 [20 Jan 1976] 01978/77 Heading F1B [Also in Division B3] A method of producing a body for an electromagnetically actuable fuel injector for internal combustion engines, comprises machining a blind bore 2c terminating in a cone 2d, machining at least one bore 7 for the fuel, electrolytically machining an annular semi-toric cavity 8a, enlarging and truing cone 2d, drilling nozzle 9, and removing the edge between cavity 8a and cone 2d by a punch 18, Fig. 5 (not shown), removing the edge between cone 2d and nozzle 9 by a punch 19, (Fig. 5) and finally contouring profile 6a with a punch 20, Fig. 6 (not shown). The cone apex angles before final contouring are 90, 60 and 30 degrees. Nozzle 9 may be provided by a moulded plastics plate 10, Fig. 2, below the valve seat, as an alternative to drilling the metal block 2b.
Patent GB-682914-A (GB)
Title: Improvements in or relating to interpolymers
IPC: C08F214/06
Filed: 1951-01-26
Abstract: An interpolymer is made by polymerizing a mixture of monomeric materials comprising from 35 to 90 per cent by weight of vinyl chloride, from 5 to 65 per cent by weight of an alkyl acrylate in which the alkyl group contains from 5 to 10 carbon atoms and from 2 to 40 per cent by weight of an acrylic nitrile, at least 90 per cent by weight of the monomeric mixture being made up of these three ingredients.  The acrylate may be 2-ethylhexyl, n-amyl, n-hexyl, isohexyl, isoheptyl, n-heptyl, capryl, n-octyl, 6-methyl heptyl, n-nonyl, 3,5,5-trimethylhexyl or n-decyl acrylate, and the nitrile may be acrylonitrile, methacrylonitrile, ethacrylonitrile or chloroacrylonitrile.  Other monomers which may be added to the reaction mixture comprise vinylidene chloride, diethyl maleate, styrene, isobutylene and methyl or ethyl acrylate.  Polymerization may be effected as described in Specification 682,911.  The polymers may be used for the production of sheets, rods, tubes and films.
Patent GB-1382661-A (GB)
Title: Indenopyridine derivatives
IPC: C07D221/16
Filed: 1972-01-17
Abstract: 1382661 Indeno[1,2-c]pyridine derivatives SANDOZ Ltd 17 Jan 1972 [21 Jan 1971 26 Jan 1971] 2086/72 Heading C2C The invention comprises compounds of formula  wherein (a) R 1  is H, R 2  is H, Me or Et, n is 2 and R 3  is C 1-5  alkyl, C 3-7  cycloalkyl or Ph (possibly mono- or di-substituted by F, Cl, Br, MeO or C 1-4  alkyl), in the form of acid addition salts, or (b) R 1  is Me, R 2  is H, n is 1-4 and R 3  is OR 4  or NR 5 R 6 , where R 4  is C 1-5  alkyl, Ph or Ph-C 1-4 -alkyl and R 5 , R 6  are each H, C 1-5  alkyl, C 3-7  cycloalkyl, Ph or Ph-C 1-4 -alkyl, or NR 5 R 6  forms a 5- or 6-membered heterocyclic ring, in the form of free bases or their acid addition salts. The ketones (a) are prepared by dehydrating the corresponding 2-(2-acylethyl)-5 hydroxyhexahydroindeno[1,2 - c]pyridines with simultaneous conversion of the product to acid addition salt form. The esters and amides (b) are prepared by reacting 5-methyltetrahydroindeno[1,2-c]pyridine with one of the compounds X(CH 2 ) n CO 2 (R 4 ), X(CH 2 ) n CONR 5 R 6 , CH 2 :CHCO 2 (R 4 ) or CH 2 :CHCONR 5 R 6 , X being the acid radical of a reactive ester. Therapeutic compositions, preferably for oral administration in unit dosage or sustained release form, comprise compounds of the above formula, which have anti-aggressive and C.N.S.- depressive activity.
Patent GB-395756-A (GB)
Title: Improvements in electrically heated hollowware
IPC: A47J27/62
Filed: 1932-01-23
Abstract: 395,756. Electrically-heated vessels. PIPER, T. W., Hillbury, Redbourn, St. Albans, Hertfordshire. Jan. 23, 1932,'No. 2089. [Class 39 (iii).] A receptacle 6 is equipped with internal heaters controlled by a multiposition switch so arranged that coarse control of the supplied power is provided to raise the liquid in temperture and fine control over a plurality of positions is provided to enable a predetermined temperature or rate of boiling to be maintained. This may be achieved by providing the switch with coarse steps for higher values of applied power and fine steps for the lower, or, as shown, a bimetallic strip 3 may operate the contact 8 to change the circuits of the switch to give a fine control at the desired temperature. The electrical connections may be made by a plug and socket at the end of the handle 11 of the receptacle or the pan may be placed in a depression on top of an electric stove and contact made in the manner of a bayonet joint by twisting.
Patent GB-749252-A (GB)
Title: Improvements in variable speed belt transmission mechanism
Inventor: MITCHELL JAMES
IPC: F16H61/662
Filed: 1953-01-26
Abstract: 749,252. Variable-speed gearing. FENNER & CO. (HOLDINGS), Ltd., J. H., [formerly FENNER & CO., Ltd:, J. H.]. April 23,1954 [Jan. 26, 1953], No. 2223/53. Class 80(2) In variable-speed V-belt gearing wherein speed variations are effected by adjusting the distance between the axes of the pulleys or by moving a jockey pulley, one of the pulleys has conical flanges 1, 2 urged together both by a spring 24 and by torqueresponsive means, the rate of the 'spring being so related to the action of the torqueresponsive means that, under maximum power conditions, the total force urging the flanges together is substantially constant throughout the range of effective diameters of the pulley, so that the tensions in the tight and slack runs of the belt remain constant. As shown in Fig. 1, the flanges 1, 2 are slidably keyed together at 10 and are loose on a sleeve 3 fixed to the driving or driven shaft 4, and helically-grooved rings 21, 22 secured to the flanges 1, 2 engage with helical ribs 16 in a housing 14 secured to the sleeve 3. Alternatively, flange 1 may be axially fixed, ring 21 being then omitted. As shown in Fig. 5, the torque-responsive means comprise pairs of toggle links 29, 30 which straighten in response to increased torque, the mid-points of the toggles being carried by a ring 28 secured to the housing 14. A multiple-pulley arrangement is also described (Fig. 3, not shown).
Patent GB-753730-A (GB)
Title: A method of rendering fabrics water-repellent
IPC: D06M15/643
Filed: 1954-01-25
Abstract: Co-hydrolysis products of a mixture consisting essentially of from 65 to 95 mol. per cent of (CH3)2SiCl2 and from 5 to 35 mol. per cent of HSiCl2 may be prepared as follows:-(i) To a mixture of HSiCl3, (CH3)2SiCl2 and toluene a mixture of methanol and toluene is added over a period of 35 minutes.  Then water and toluene are added slowly.  The toluene layer is separated, washed with water until neutral, filtered through diatomaceous earth and strip distilled to yield a solution containing the hydrolysate. (ii) Excess water is added over a period of two hours to a solution of (CH3)2SiCl2 HSiCl3 in ether. The ether layer is separated, washed to neutrality and all materials boiling below 78 DEG  C. at 2.5 mm. are removed to yield a liquid co-hydrolysate.  (iii) Water and tetrahydrofuran are added slowly to a solution of HSiCl3 and (CH3)2SiCl2 in toluene and ether. The organic layer is separated, washed free from acid and then concentrated by distillation.  (iv) A mixture of water, tetrahydrofuran, ice and sodium bicarbonate is added to an equimolecular mixture of HSiCl3 and (CH3)2SiCl2 dissolved in isopropyl ether.  Further specified solvents are benzene, ethanol and isopropanol.  Aqueous emulsions of the hydrolysates may be formed by the action of heat decomposible emulsifying agents. Specified agents are quaternary ammonium halides such as hexadecyl dimethyl benzyl ammonium chloride.  The siloxane may be dissolved in a solvent which, after emulsification, is removed under vacuum.  Specifications 628,072, 635,995, 636,905 and 680,265 are referred to.
Patent GB-535874-A (GB)
Title: Improvements in and relating to coin-freed vending machines
IPC: G07F17/42
Filed: 1940-02-06
Abstract: 535,874. Coin-freed vending machines. KOOPERATIVA FORBUNDET FORENING U. P. A. Feb. 6, 1940, No. 2299. Convention 'date, Feb. 6, 1939. [Class 27] Rapid zeroizing of the delivery shaft is obtained, in a coin-freed vending machine of the kind in which cams or curve discs controlling the delivery of a ticket and change are adapted to be put into driving connection with a summator controlling the discs and in which a spring-controlled driving-wheel rotates the summator members angularly into positions corresponding to the value of the coins inserted during the counting period, by disconnecting all or most of the summator members from the driving-wheel when the counting period is ended and connecting the cam or curve delivery discs to this wheel so that the wheel then rotates the discs in the same direction as they have moved during the counting period through the remainder of a complete revolution until they reach the zero position once more. In the illustrated form the shaft 8 is rotated proportionately to the value placed into the machine, stressing the spring 7 in the process. The shaft 8 also drives the summator shaft 4 and delivery shaft 22 proportionately through toothed gearing. As illustrated the delivery shaft is in two parts 22, 26 connected by differential gear. At the end of the counting period the shaft 42 is started as described in Specification 440,763 and makes one complete rotation. This rotation (1) causes a cam to operate the linkage 64, 35 to remove the toothed wheel 36 from the pair of wheels 29, 30 thus breaking the connection between the shafts 22, 26. (2) By means of cams 61 and 43 it drives the linkage 63, 58 to swing the toothed sector 57 to rotate the disconnected shaft 26 in the reverse direction to that in which it has been moved by the value of the coins. This zeroizes the shaft 26. The connection between the wheels 36 and 29, 30 is restored at this point. (3) By means of a face cam it swings the lever 52 about the pivot 51 and moves the hub 19 of the wheel 17 axially to disengage the latter from the pins 16 on the wheel 15 thus disconnecting the summator coupling elements 1 and impulse discs 6 from the drive. As soon as the wheel 15 is freed the spring 7 drives the shaft 22 further in the same direction as it has been rotated by the coin value through the gearing 11, 13, 14, 15, 23. (4) By means of the cam 43 the lever 46 is moved into register with the stop 48 to arrest the movement of the shaft 22 after one complete revolution, i.e. when it is zeroized. To maintain the spring 7 at substantially constant tension motor-driven toothed wheel 39 carrying driving pins 40 is rotated until the increasing compression of the spring 7 overcomes the spring 41 and moves the wheel 39 axially to disconnect it from the disc 38 on the shaft. Specifications 465,694, 544,305, (as open to inspection under Sect. 91) and U.S.A. Specification 2,173,264 are referred to.
Patent GB-908826-A (GB)
Title: Improvements in or relating to cages for rolling bearings
IPC: F16C33/46
Filed: 1961-01-20
Abstract: 908,826. Bearing cages. SVENSKA KULLAGERFABRIKEN A.B. Jan. 20, 1961 [Feb. 3, 1960], No. 2357/61. Class 12 (1). A cage for rolling bearings comprises a number of H-sectioned spacers 17, Figs. 1, 2, 9, resiliently held in side rings 11 (only one shown). Spacers 17 are sprung over a chamfered portion 13 on the ring, the ends 110 engage the bottom face 15 of an annular groove 12, and the web 18 engages a top face 14, thus holding the spacers axially and providing the required spacing around the groove. The spacers are removed by inserting a tool through holes 114 in the rings, and depressing the ends 110. The curvature of the spacers is less than that of groove 12, or in a modification, the positions of faces 14, 15 are reversed, and the curvature of the spacers is greater than that of the groove. In a further modification, Figs. 5, 6, 10, the spacers 57 are of quadrelateral form, and the curvature is less than that of groove 52. In a still further modification, Figs. 7, 8, spacers 77 have a web 78, and end flanges 79 which are curved in the axial direction and are resilient so that ends 710 engage surface 75 of a groove 72 and middle portions 712 engage face 74, the spacers being prevented from dropping and by a wall 76. In another modification, Figs. 11-13, the spacers 97 have hooks 96 which project through holes 915 in side rings 91, the ends 910 engage surface 94 of groove 92, and web 912 engages surface 95 of the groove.
Patent GB-884656-A (GB)
Title: Process for the preparation of a detergent mixture of the type of the alkyl-aryl-sulphonates and of the secondary alkyl sulphates
IPC: C07C2/70
Filed: 1958-01-24
Abstract: Detergent mixtures of alkyl aryl sulphonates and monoalkyl sulphates are produced by treating a petroleum fraction containing benzene, alkyl benzene and olefines having 8-18 carbon atoms at 5 DEG -15 DEG C. with sulphuric acid to alkylate the aromatic substances and sulphate the excess olefine, treating the resulting crude alkylate after the acid phase consisting mainly of monoalkyl sulphates has been separated out with sulphuric acid and/or sulphur trioxide to form alkyl aryl sulphonates and adding to the resulting sulphonate a quantity of the secondary alkyl sulphates prepared by neutralization and extraction of the said acid phase. Compositions are described comprising in addition to the essential ingredients sodium sulphate, polyphosphates and carboxymethyl cellulose.ALSO:In a process for the production of mixtures of alkyl aryl sulphonates and monoalkyl sulphates which are suitable as detergents (see Group III), a petroleum fraction containing benzene, alkyl benzene and olefines with 8-18 carbon atoms is treated at 5 DEG C.-15 DEG C. with sulphuric acid to alkylate the aromatic substances and sulphate the excess olefine, the resulting crude alkylate, after the acid phase consisting mainly of monoalkyl sulphates has been separated out, is treated with sulphuric acid and/or sulphur trioxide to form alkyl aryl sulphonates and to the resulting sulphonates is added a quantity of the secondary alkyl sulphates prepared by neutralisation and extraction of the said acid phase.  Dialkyl sulphates also produced in the first step of the process are converted to monoalkyl sulphates by treatment with caustic alkali.  Suitable starting materials specified include mixtures of benzene and gasoil obtained from thermal cracking of petroleum comprising aromatic constituents and petrol-gasoil fractions distilling between 70 DEG C. and 240 DEG C. Such fractions may be completed by addition of aromatics or olefins where necessary.  Examples are furnished in which benzine-gasoil fractions and crude cracking benzene of boiling range 70 DEG C.-240 DEG C. are employed as starting materials.
Patent GB-451116-A (GB)
Title: Improvements in the treatment of cellulose fibres
IPC: D06M15/423
Filed: 1935-01-25
Abstract: Cellulose fibres and the like are treated in the absence of urea or thiourea with an acid amide containing less than 12 carbon atoms and with formaldehyde or the like, and are then subjected to a raised temperature to bring about condensation.  Suitable amides are acetamide, malonamide, benzenedisulphonamide, phthalamide allophanamide, asparagin, and succinimide.  Catalysts, buffer substances, softening agents, loading agents, and the like may be present.  In an example, the cellulose material is treated with a solution of acetamide, dried, and heated with formaldehyde under pressure.  In a second example, the goods are impregnated with a solution containing succinamide or succinimide and lactic acid, pressed, treated with paraformaldehyde, dried, and heated. In a further example, the process of the previous example is modified by using for the first impregnation a solution containing allophanamide and mono- and di-sodium phosphate.  Specification 441,038 is referred to.
Patent GB-243663-A (GB)
Title: Improvements in or relating to switches for electric water heating apparatus
IPC: F24H9/20
Filed: 1925-01-28
Abstract: 243,663. Henneman, K. F., and Kerkhoven, P. Dec. 1, 1924, [Convention date]. Addition to 206,834. Switches, quick-action; fluid actuation.-In a modification of the switch described in the parent Specification, in which the opening of a dry cock causes the upward movement of a piston 5 in a cylinder 1 having one or more by-paths 14, the piston 5 is unperforated and is non-slidably connected to its piston-rod 6. The piston preferably fits very loosely in the cylinder and the by-path 14 communicates with the cylinder by a hole adjustable by a screw 15 and also preferably by a larger hole 47 controlled by a screw 46. When the dry cock is opened water can leave the cylinder through a pipe at the top, and water entering through the pipe 2 flows partly through the space between the piston and the cylinder and partly through the by-pass, the pressure serving to raise the piston till eventually it clears the top aperture 47 and a comparatively large volume of water can pass through the by-path. The movement of the piston rotates a shaft 8 and raises a crank 17 against an adjustable spring 19, thereby carrying another spring 24 over deadcentres and rotating a shaft 27 carrying the movable contacts of the switch. The switch is preferably contained in a separate portion of the casing from that containing the hydraulic operating mechanism.
Patent GB-1499656-A (GB)
Title: Materials for reducing drag in liquid systems
IPC: C01B33/22
Filed: 1974-01-18
Abstract: 1499656 Asbestos dispersions TBA INDUSTRIAL PRODUCTS Ltd 20 Jan 1975 [18 Jan 1974] 02590/74 Heading CIA A dispersion of chrysotile asbestos in an organic liquid is prepared by (a) providing chrysotile asbestos previously opened in an aqueous system and separated therefrom, having an average fibril length of from 0À8 to 1 mm. and substantially free from asbestos which has been chemically combined with unsaturated organic acid and (b) dispersing it in an organic liquid selected from benzene, toluene, white spirit, petroleum ether, chloroform and methyl ethyl ketone and which is free of colloidal silica.