baber/WOPTO huggingface dataset:
Patent GB-337031-A (GB)
Title: Improvements in hydraulic variable speed gears
IPC: F16D31/06
Filed: 1929-07-25
Abstract: 337,031. Kay, B., and Tillotson, J. O. July 25, 1929. Speed-varying mechanism.-In an hydraulic speed-gear of the type in which a core fitted with sliding plungers is mounted eccentrically within a casing, the casing b, Fig. 1, is divided into a plurality of compartments b<1>, sliding plungers c being arranged within each together with means for controlling the admission of liquid thereto. A device for reversing the drive may also be provided. The driving shaft A is provided with a cylindrical core a and a casing b on the driven shaft B has a number of discs b<2> and eccentrically bored rings b<1>. Each compartment b<1> is provided with a pair of spring- separated plungers c which are situated in slots a<1>, Fig. 2, in the core a, adjacent slots being preferably at right angles. Ports e, e<1> are provided in the rings b<1> and a sleeve or sleeves D having apertures d, d<1> is situated outside the casing b to control the admission of liquid to the eccentric chambers, the arrangement being that the port e<1> is closed when the port e is fully open. The shaft A may be divided into two portions, one of which has keyways f engaging corresponding keys on a coupling F, in one position of which dogs f<3> thereon engage dogs f<2> on the shaft A<1> to give a direct drive. When a reverse drive is required, teeth on the dogs f<3> are brought into engagement with the teeth g<2> of a drum G<1> which gears with pinions g<1> carried by a casing G. The pinions g<1> gear with a pinion g keyed to the shaft A<1>, a brake being provided to prevent rotation of the casing G.
Patent GB-744941-A (GB)
Title: Improvements in or relating to sodium nitrate and compositions containing it
Inventor: AMES JACK
IPC: C01D9/20
Filed: 1953-08-19
Abstract: Disulphonic acids of dinaphthylmethane are prepared by condensing 1 mol. of formaldehyde with 2 mols. of a naphthalene monosulphonic acid.  The condensation may be effected in the presence of sulphuric or hydrochloric acid, and the resulting disulphonic acids may be neutralized with sodium hydroxide to obtain the corresponding sodium salts.  Naphthalene a -sulphonic acid or b -sulphonic acid or equimolecular proportions of both may be used to produce the corresponding disulphonic acids or sodium salt thereof.ALSO:The caking tendency of sodium nitrate particles is decreased by depositing on the surface of the particles a salt of disulphonic acid of a dinaphthylmethane which salt is soluble in a saturated aqueous sodium nitrate solution at 20 DEG C.  The disulphonic acids of dinaphthylmethane are defined as the condensation product of 1 mol of formaldehyde and 2 mols of a naphthalene monosulphonic acid which may be naphthalene a sulphonic acid, naphthalene b  sulphonic acid or an equimolecular mixture thereof.  The soluble salts of these acids may be provided in amounts of at least 0.025 per cent, suitably 0.05 to 1 per cent by weight of the sodium nitrate, and may be incorporated with the sodium nitrate by addition thereof to an aqueous sodium nitrate solution which is then crystallized, or by spraying a solution of the salts on to sodium nitrate crystals.  Examples relate to the use of the sodium salts of b  : b 1, a : a1 and a : b disulphonic acids of dinaphthylmethane.
Patent GB-702089-A (GB)
Title: Improvements in or relating to a method of rendering a textile resistant to the accumulation of electrostatic charges
IPC: D06M13/477
Filed: 1951-10-02
Abstract: The tendency of textile fibres, felts, cords, threads, yarns, filaments and fabrics to acquire electrostatic charges is reduced by treatment with an aqueous solution of a compound of the formula:- <FORM:0702089/IV (c)/1> where A is an anion, R1 is an aliphatic radical of from 11-20 carbon atoms and R2 is an alkyl radical of 1-5 carbon atoms.  Specified anions are halide, nitrate, phosphate, alkylsulphate, cyanide, acetate, benzoate, citrate and tartrate. Specified R1 radicals are undecyl, lauryl, myristyl, cetyl, oleyl, stearyl and "soyalyl" (the mixture of aliphatic hydrocarbon radicals derived from the mixture of fatty acids occurring as glycerides in soya bean oil).  Specified R2 radicals are methyl, ethyl and amyl. Specified compounds are cetyl-ethyl-morpholinium ethosulphate, cetylmethyl morpholinium methosulphate, laurylmethyl morpholinium methosulphate, "solalyl"-ethyl morpholinium ethosulphate, stearyl-methyl morpholinium methosulphate, stearyl-ethyl morpholinium ethosulphate and oleyl-ethyl-, cetyl-methyl- and cetyl-ethyl morpholinium chloride.  Textiles of nylon, acetate rayon, viscose rayon, "Orlon" (Registered Trade Mark), cotton, wool, silk, glass and linen may be treated.
Patent GB-721827-A (GB)
Title: Improvements in or relating to fluorescent coating compositions
Inventor: MORRIS REGINALD BURFORD
IPC: C09D5/22
Filed: 1950-09-19
Abstract: A fluorescent coating composition comprises a volatile organic solvent solution of at least one synthetic resinous condensation product in physical or chemical combination with at least one fluorescent dye, and at least one finely-divided solid light diffusing medium (extender), preferably having a particle size not greater than 2 microns and a refractive index not differing from that of the resin by more than 15 per cent, the resin constituting at least 35 per cent by weight of the composition, and the dye being in a proportion not exceeding that at which optimum brightness is achieved.  The dye-resin combination may be formed, e.g. by adsorption, solvation or by ester formation between a carboxylate group in the dye and a hydroxyl group of the resin. The compositions may be made by dissolving the resin(s) in a solvent or solvent mixture, adding the dye(s) thereto and heating; the extender(s) is then stirred in and the mixture further heated.  Ingredients specified are:-Fluorescent dyes-4 - amino - 1 : 8 - naphthalic acid - 41 - phenylanilide sodium sulphonate, 4-amino-1 : 8-naphthalic acid-41-methylanilide, 4-amino-1 : 8-naphthalic acid - cyclohexylamide, 3 : 6 - diamino - acridine methochloride hydrochloride, dimethyl dehydrothiotoluidine - methochloride, 3 : 6 - bisethylamino - 9 - (21 - carbethoxy - phenyl) - xanthenyl - chloride, 3 : 6 - bis - diethylamino - 9 - (21 - carboxyphenyl) - xanthenyl chloride, 3 : 6 - bis - diethylamino - 9 - (21 - sulphophenyl)-xanthenyl sodium sulphonate.  Non-fluorescent dyes and pigments may also be added: resins-glyceryl phthalate (modified and unmodified), alkylated (e.g. butylated) urea-formaldehyde, alkylated (e.g. butylated) melamine-formaldehyde, cyclohexanone - aldehyde, epoxide, sulphonamide-aldehyde and polyurethane (e.g. toluene diisocyanate and butylglyceryl phthalate) resins.  Other resinous materials which may be added are nitro-, acetyl-, ethyl-, benzyl-, acetyl-butyryl- and acetyl-propionyl-celluloses; polymethacrylate, polyvinyl - acetate and -chloride, polyvinylidene chloride and their copolymers; extenders-silica, magnesia, alumina, powdered urea- and melamine-formaldehyde resins, mica, china clay, rice starch and acetylated starch; solvents-diacetone alcohol, ethyl acetate, butyl acetate, ethyl lactate, acetone, methyl isobutyl ketone, white spirit and butanol-xylene mixture.  Cobalt and lead driers or acid catalysts such as phosphoric and p-toluene sulphonic acids may be added to the compositions. Examples are given.  Specification 456,480 is referred to.
Patent GB-615182-A (GB)
Title: Improvements in the attachment of bodies to shafts
IPC: F16D1/091
Filed: 1946-08-01
Abstract: 615,182. Securing articles on shafts. DEMETRIADES, G. A. Aug. 1, 1946, No. 22995. Convention date, July 17, 1945. [Class 80 (ii)] [Also in Group XXXIV] In means for securing elements such as wheels, pulleys and propellers on shafts wherein relative rotation of the element with respect to the shaft causes a strengthening of the driving connection, the bore of the boss 12 has a parallel screwthreaded central portion 14 and two outwardly tapered plain portions 15, 16. The shaft 18 has screw threaded portions 20, 22 of opposite hand and a tapered portion 24. The element is screwed on to the threads 22 of the shaft until the portions 16, 24 mate, and a tapered member 26 having a screw-threaded bore 28 is screwed on to the threads 20 so that it mates with the portion 15 of the boss. The part 26 is provided with a hexagonal head.
Patent GB-1343294-A (GB)
Title: Extinguishing and inhibiting ignition of fluid fuel
IPC: E21B35/00
Filed: 1971-04-19
Abstract: 1343294 Wells &c COMPAGNIE FRANCAISE DES PETROLES 19 April 1971 [3 March 1970 9 Feb 1971] 23053/71 Heading E1F [Also in Division A5] A method of extinguishing flames issuing from a conduit carrying fluid fuel, and of preventing ignition or re-ignition of the fuel, comprises injecting fire-extinguishing fluid into the conduit and creating a turbulent zone across the whole mixture of fuel and extinguishant upstream of the flame and downstream of the injection point. Apparatus suitable for carrying out the method comprises (Fig. 1) a tubular member or pipe 1 whose ends are formed with flange 4 and seal groove 5 for insertion in a fluid-tight manner in a fluid-carrying conduit, e.g. at an oil well head. Two series of injectors 2, 3 are mounted in the walls of 1, each embodying six injector elements and the two series being angularly staggered one to another. Preferably the injector axes are perpendicular to the tube axis. Each injector communicates with chamber 6 formed between the wall of 1 and annular element 7 welded on to flanges 8 and 9, duct 10 supplying water or extinguishant to 6. As shown in Fig. 1 the tube cross-section is smaller in central zone 12 to promote turbulence where the passage enlarges beyond zone 12. Turbulence can also be created by the fuel speed and the degree of penetration of the injected extinguishant. The construction of injectors of type 2 and 3 is disclosed and claimed in divisional Specifications 1343295, Reference has been directed by the comptroller to Specifications 1343296.
Patent GB-638178-A (GB)
Title: Improvements relating to apparatus for measuring low gas pressure
Inventor: BROAD DONALD ANTHONY GIFFORD
IPC: H01J41/06
Filed: 1947-08-21
Abstract: 638,178. Determining physical qualities of materials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 21, 1947, No. 23154. [Class 37] [Also in Group XL (a)] In apparatus for measuring low gas pressure by measuring the current between two electrodes in the gas, the electron path being made long by an applied magnetic field, the anode 7 consists of a rod projecting through a closed end 2 of a cylindrical cathode 1 whose other end is open and projects beyond the anode, and is surrounded by a solenoid 8. The cathode may be provided with a glass envelope 9, or may consist of a metal deposit on the interior of the envelope 9. The open end of the envelope 9, or the cathode 1, is sealed to the vessel 18 containing the gas (Fig. 3) and the potential difference across the discharge space is measured with a constant applied voltage between electrodes. Additional electrostatic shielding may be provided by a metalgauze disc in the open end of the cathode. Specifications 474,845 and 555,134 are referred to.
Patent GB-485750-A (GB)
Title: Towing and dropping bombs and other articles from aircraft
IPC: B64D1/22
Filed: 1936-08-24
Abstract: 485,750. Towing articles from aircraft. CASTELLI, J. L. A., and FREMONT, A. A. Aug. 24, 1936, No. 23191. [Class 4] Means for towing and dropping articles from aircraft comprise a winding drum on the aircraft and within reach of the operator, a retractable towing or drag device adapted to be connected at one end to the drum and a slip-on safety housing adapted to be connected at the other end of the towing device and to be releasably engaged with the article which is provided with stabilizing or directing surfaces. As shown, a bomb 1 is provided with adjustable vanes 3 and a bush 5 provided with teeth 30. A striker 8 for detonating the bomb is held against the tension of a spring 9 by fingers 11 which are held in a recess in the bush and engage a head 10. The fingers 11 are pivoted to a cable 14 connected by a detachable thimble 16 to a handoperated winch carried on the aircraft. The winch is rotated by a handle 21 which may be moved against the action of a spring 22 and caused to engage apertures in a fixed plate 25. Rotation of the winch is retarded by a toothed plate 26 and a spring (not shown). A sleeve 27 is provided with vanes 39 and with pawls 29. The pawls engage the teeth 30 and their upper ends are disposed in the enlarged portion of a sleeve 35. The upper end of the sleeve 27 is provided with grooves 32, 40 adapted to be engaged by scissor like members 33 expandable against the action of a spring by the pilot. In operation, the members 33 are released and the cable 14 tensioned causing the pawls 29 to free the teeth the scissor members 33 being caused to engage the groove 40. The cable 14 is paid out and the bomb trails. On reaching the objective, engagement of the bomb therewith tensions the cable and withdraws the head which frees the fingers 11 causing release and detonation of the bomb. If it is desired to withdraw the bomb sleeve 27 is released and under the action of the vanes 39 progresses along the cable 14. When the bomb is reached the pawls engage the teeth and the bomb can be drawn in.
Patent GB-1001547-A (GB)
Title: Process for the separation of ªÏ-dodecalactam
IPC: C07D201/16
Filed: 1964-06-04
Abstract: The invention relates to a method of separating o -dodecalactam from the crude reaction product obtained by treating cyclododecacarboxylic acid with a nitrosylating agent in concentrated sulphuric acid or oleum, decarboxylating the nitrosocarboxylic acid to yield cyclododecanone oxime, and subjecting the latter to the Beckmann rearrangement.  According to the invention, the resulting mixture of cyclododecacarboxylic acid, o -dodecalactam and sulphuric acid or oleum is diluted to a sulphuric acid concentration of less than 30% to precipitate a mixture of o -dodecalactam and cyclododecacarboxylic acid, and this mixture is treated with aqueous ammonia, preferably of a concentration below 15%, whereby the cyclododecacarboxylic acid dissolves and the o -dodecalactam remains.  Alternatively, the original lactam-containing mixture may be treated with aqueous ammonia directly, whereby ammonium sulphate is obtained as a by-product. In either event, the ammonium cyclododecacarboxylate may be converted into cyclododecarboxylic acid for re-use by heating it to a temperature above 50 DEG  C. in the dry state or in aqueous solution, preferably under reduced pressure.  Examples are given. Specification 995,723 is referred to.
Patent GB-1179073-A (GB)
Title: Mechanically Deflected Fluid Stream Servo Valve
IPC: F15C3/12
Filed: 1968-05-16
Abstract: 1,179,073. Fluid-pressure servomotor systems; fluid-logic devices. BENDIX CORP. May 16, 1968 [May 26, 1967], No.23224/68. Headings G3H and G3P. A fluid control servo valve for providing an output varying as a function of an input variable comprises a stationary nozzle 10, Fig. 1, to direct flow towards a pair of angularly disposed receiver passages 20, 22, a movable deflector member 16 between the passages and the nozzle and having an edge 14 tapered away from the nozzle, and control means responsive to the input variable and operatively connected to the deflector member to cause the latter to intrude into the flow 12 sufficiently to deflect the entire flow and modify the pressures in the receiver passages 20, 22. In Figs.3 and 4, the control means consists of a torque motor 26 having an armature member 34 movable about a pivot 36 in proportion to the signal energizing a winding 30 and carrying a flapper valve 60 having a port 56 normally in alignment with a nozzle 54. A pair of receiving orifices communicate with opposite sides of the piston 74 of a hydraulic motor 76 and a diagonal passageway 66 returns fluid which does not enter the orifices to a reservoir 40. The torque motor may be replaced by a pair of bellows sensing either a hydraulic or pneumatic pressure differential. In a further modification, the port 56 is formed in a horizontal extension of the flapper valve so as to move in a horizontal rather than a vertical plane.
Patent GB-407957-A (GB)
Title: Improvements in the manufacture and production of lacquer varnishes
IPC: C08G63/52
Filed: 1932-08-19
Abstract: Resinous compounds are prepared by heating b -elaeostearic acid with maleic anhydride or a substance capable of yielding it and subsequently esterifying the product or by heating b -elaeostearin with maleic anhydride.  The b -elaeostearic acid or b -elaeostearin may be obtained from tung oil by treating it with iodine, sulphur or sulphur dichloride or by the action of light.  b -Couepin, derived from citicica oil may be used instead of b -elaeostearin.  In examples: (1) b -elaeostearin was heated with maleic anhydride in the presence of a current of nitrogen to give a viscous mass soluble in acetone, alcohol, ether, benzene, turpentine and glacial acetic acid and miscible with linseed oil and solutions of the product with or without the addition of driers dry to a hard film; (2) the product obtained by treating a mixture of tung oil and linseed oil with iodine is dissolved in p  turpentine, treated with maleic anhydride and a cobalt linoleate drier added to the resulting solution to yield, with or without the addition of a resin ester, a resinous phenolaldehyde condensation product or a di- or polyhydric alcohol, a varnish; (3) the product obtained by treating a solution of tung oil in xylene or turpentine with iodine followed if desired by a heat-treatment is treated with maleic anhydride to yield a varnish which may be heated with a di- or polyhydric alcohol such as ethylene glycol or glycerine or with quicklime or other anhydrous alkaline earth or alkali to increase the viscosity; (4) the product of interaction of maleic anhydride and b -elaeostearin is dissolved in a mixture of xylene and butyl alcohol or turpentine together with cobalt and manganese linoleates and zinc white. Specifications 285,459, [Class 2 (iii)], and 370,440 are referred to.
Patent GB-256560-A (GB)
Title: Improvements in power operated brakes
IPC: B60T13/24
Filed: 1925-09-18
Abstract: 256,560. Soc. Anon. Servo Frein Dewandre. Aug. 10, 1925, [Convention date]. Fluid-pressure. - A power brake device comprises a vacuum cylinder the piston of which is linked to a compound lever system connected with the manual or pedal control, with the brakes as by a rod or link, and with the valves of a vacuum air distributor as by a loose coupling, the leverage of the element connected to the manual or pedal control with respect to the brakes being small in relation to the leverage of the connection of the piston with respect to the brakes. On operation of the brake lever 13, Fig. 1, floating lever 74 connected thereto turns about the point 74<b> and moves a control-valve rod 82 connected to the, floating lever at the point 74<c>. A brake cylinder 3 is thus put into communication with the induction pipe 1 of the engine of the vehicle and the floating lever 74 is turned by the piston cable 5, which is connected at the point 74<d> to the floating lever, about a point 74<a> to which the brake lever is connected, a reaction effect being produced upon the brake lever. This movement operates the brake mechanism 78 which is connected to a lever 79 pivoted at one end on a fixed shaft 80 and connected at the other end to the point 74b of the floating lever. This movement ceases when the control valve is returned to the closed position by the movement of the floating lever. When the brake lever is released, the floating lever moves the control valve so as to open communication between the brake cylinder and the atmosphere and releases the brakes. In direct pedal application of the brakes, the floating lever 74 takes a bearing on the fixed shaft 80 which passes through an opening in the end of the floating lever with a certain amount of play. As shown in Fig. 2, the control valve comprises a valve 8, controlling communication between the brake cylinder 3 and the induction pipe of the engine, and a valve 9, controlling the communication with the atmosphere which may be obtained by means of a duct leading to the crank case so that the device is lubricated by oily vapours therefrom. The spring 11 keeps these valves on their seats. In opening the valve 8, the lever 82<1> bears against a nut 44 on the end of the valve stem, and in opening the valve 9, the lever 82<1> bears on the sleeve 85 acting against the valve. The lever 79 is connected to the front and back brake mechanism by rods 78<a>, 78<b>, and as shown a casing 84 is provided.
Patent GB-278870-A (GB)
Title: Improvements in, and relating to, the pneumatic conveyance of coal and other materials
IPC: E02F3/92
Filed: 1926-09-22
Abstract: 278,870. Dorman, Long, & Co., Ltd., and Kirby, M. R. Sept. 22, 1926. Penumatic conveyers.-Broken-down coal at the coal face is collected and directed to the inlet of a pneumatic conveyer by a shovel-like member u which is connected by a member g to the ram e of a hydraulic cylinder f. The rear end b of the. shovel is connected to a pipe i which telescopes in a pipe j forming part of the pipe line of the conveying system. The cylinder f and pipe y are secured together by a strap k. In a. modification, the shovel a, Fig. 2, is connected to two rams e and coal is directed to the pipe i by endless conveyers l. In another modification, a worm conveyer l, Fig. 3, comprising two equal worms w of opposite hands. directs the coal into the pipe i. Teeth y may be mounted on the worms for further breaking up the coal, and paddles z may be provided for directing the coal to the inlet. Specification 211,616, [Class 68 (i), Excavating earth &c.], is referred to.
Patent GB-1144124-A (GB)
Title: Textile spindle
Inventor: HARTLEY KENNETH ALLISON
IPC: D01H7/06
Filed: 1965-06-02
Abstract: 1,144,124. Bearings. COURTAULDS Ltd. 1 June, 1966 [2 June, 1965], No. 23464/65. Heading F2A. [Also in Division D1] A spindle, which may be for up-twisting and down-twisting and is for carrying a yarn package, is mounted on a gas bearing. As shown, air bearings enable a housing 9 to rotate on a stationary thick-walled tube 1. The housing is driven by a wharve 12, the sleeve and wharve having mating flanges 11, 10. Upper and lower air bearings are located at surfaces 2, 3 where the tube 1 has portions of enlarged external diameter. At corresponding positions, the housing has counterbores 14, 15 in which bearing support sleeves 16, 17 are a close sliding fit. Each sleeve is connected to a cylindrical bush 22 around the spindle by resilient 0-rings 18, 19 received in grooves in the sleeve and bush. The sleeves 16, 17 are held in place by rubber rings 27, 28. The sleeve 9 is closed by a threaded cap 29 with an internal bore closed by a plug 31, the lower surface of which engages the head of a thrust-member 7 adjustable in a ring 6 in a counterbore in the top of the tube 1, the arrangement forming a thrust bearing for supporting the housing 9. A sleeve 35 is a close fit over the top of the housing and carries a U- shaped resilient collar 34, which under centrifugal action as the housing rotates, expands to grip a bobbin 37. In operation, air is withdrawn centrifugally through apertures 38, 39 through the wall of the tube and between the surfaces 2, 22 and 3, 22 forming pressure-wedges which keep the surfaces apart. The air escapes downwardly through a space 46 between the tube and the wharve. Balls in tracks 41, 42 act as a selfbalancing device for the arrangement, the track 41 being formed in the cap 29 and being enclosed by a cover 44. The bearing may be of the kind in which gas pressurized externally is supplied to the clearance space.