baber/WOPTO huggingface dataset:
Patent GB-1396607-A (GB)
Title: Exhaust gas thermal afterburning apparatus
IPC: F01N3/26
Filed: 1972-06-03
Abstract: 1396607 Purifying I C engine exhaust gases M B CULP 3 June 1972 26012/72 Heading F1B An afterburner 18 comprises electric heating coils 26a to 26e, an igniter 27 connected to the secondary windings (35), Fig.3 (not shown), of an induction coil 15, baffle plates 24 and 25 mounted adjacent the exhaust gas inlet 22 and outlet 23 and an inlet connected to a source 14 of compressed air. The primary windings (36) (Fig.3), of the coil 15 are connected to a current source (32) through contacts (37, 39) in parallel with a capacitor. One contact (37) is spring- biased into engagement with the other (39) and is drawn by the core (34) of the coil 15 to open the contacts when the primary windings are energized to thereby provide sparks at the igniter electrodes 30, 31. The source 14 may be a compressor providing a pressure of approximately 25 p.s.i. The afterburner is formed of a ceramic, e.g. porcelain, and covered with a heat-resistant material.
Patent GB-796551-A (GB)
Title: Improvements relating to the production of glass tubing
Inventor: SCOTT WILLIAM JOSEPH
IPC: C03B23/07
Filed: 1955-09-12
Abstract: 796,551. Glass manufacture. BRITISH THOMSON-HOUSTON CO. Sept. 12, 1956 [Sept. 12, 1955], No. 26066/55. Class 56. In producing glass tubing of predetermined external shape, such as square, polygonal or other cross-section, a length of glass tubing, normally circular in section ; sealed at its ends is inserted into a hollow mould of graphite or a like material to which plastic glass will not adhere, the mould having an internal crosssection of the desired shape, and the mould is then heated to a temperature such as to render the glass plastic and to cause the gaseous atmosphere trapped in the sealed tube and/or evolved from the glass to expand, the increase in pressure thereby created being sufficient to force the plastic glass into intimate contact with the wall of the mould. A single mould may be formed with a lid or a block of graphite may have a plurality of parallel grooves to receive each a length of tubing, a single cover of graphite completing all the moulds.
Patent GB-1146665-A (GB)
Title: Wheel slip detectors for electric locomotives
Inventor: RANDALL HENRY
IPC: B60L3/10
Filed: 1965-06-21
Abstract: 1,146,665. Control of several motors. ENGLISH ELECTRIC CO. Ltd. 12 July, 1966 [21 June, 1965], No. 26230/65. Heading H2J. In a system for detecting or correcting wheelslip by means of relays 29, 31, transformers 24, 25, are coupled respectively to the A.C. lines supplying traction motors 20, 23. Rectifier bridges 26, 27, are connected across the secondary windings of the transformers and have their outputs in series-aiding relationship. When the motor 20 is the leading motor, its wheels have a greater tendency to slip. Under such circumstances, the outputs from the rectifiers 26, 27, are unbalanced whereby relay coil 29 is energized through diode 28. If the locomotive travels in the opposite direction, relay coil 31 is energized through diode 30 to indicate slip of the wheel associated with the motor 23.
Patent GB-156941-A (GB)
Title: An improved spraying device for supplying fuel to the furnaces of steam boilers or the like
IPC: F23D11/10
Filed: 1919-10-27
Abstract: 156,941. Lumb, W. Oct. 27, 1919. Spray burners; vaporizing-apparatus; oil supply.-A liquid-fuel burner consists of a tube having an atomizing-chamber A supplied with liquid fuel from a pipe E in front of a steam jet from a pipe F, the oil and steam passing through converging nozzles G to a mixing-chamber L, cold air being drawn in through a valve J and the mixture issuing from diverging passages in a spraying-nozzle C. A hot-air inlet opening into the chamber A may be employed. The oil may be vaporized in vessels 1, Fig. 6, surrounded by steam jackets 2, and also by being passed through coils of the pipe E projecting into the furnace. The air is heated by passing through coils of a pipe P in the boiler flues. In another form, the oil preheater consists of a tapered tube surrounded by a steam jacket.
Patent GB-503327-A (GB)
Title: Improvements in and relating to methods of and apparatus for scanning in television systems
IPC: H04N3/38
Filed: 1937-09-29
Abstract: 503,327. Television scanning methods. CLOTHIER, S. L., and HOGENCAMP, H. C. Sept. 29, 1937, No. 26340. Convention date, Oct. 6, 1936. [Class 40 (iii)] In a method of secret television scanning is done in parallel irregular lines. The transmitter, Fig. 5, incorporates a slot 32 of irregular configuration in an aperture plate 15<1> through which a beam is passed from a line scanner 37. The lines scanned are therefore of configuration corresponding to slot 32. A mirror disc 21 causes images of the lines to pass across a transverse straight slot 20 so dividing them into elemental areas. At the receiver, Fig. 6, a plate 15<1> with a slot 32, of configuration identical with that at the transmitter, is traversed, by means of a mirror disc 21, by a band of light from a straight slot 20. An image of slot 32 is made to pass down the viewing screen S by a mirror drum 39. The irregularity of the scanning lines may be varied continuously by arranging at the transmitter for the slot 32 to be moved longitudinally at a definite speed, an identical arrangement at the receiver being synchronized with it. For the transmission of films, the film is moved longitudinally past the slit, only one scanning mirror being employed. Specification 603,391 is referred to.
Patent GB-1529616-A (GB)
Title: Weaving loom with external weft supply
IPC: D03D47/27
Filed: 1976-06-24
Abstract: 1529616 Shuttleless looms R DEWAS 24 June 1976 [24 June 1975 13 Oct 1975] 26346/76 Heading DIE A loom comprising at least one weft inserter 4 in the form of a tape 4b that is reciprocated back and forth by a driving wheel 5 is characterised in that the wheel 5 is driven via a toothed belt 9 by a carriage 14 that reciprocates along upwardly extending support means 18; there being two swords 7, one on each side of the loom, that carry a slay 2, the driving wheel 5 and the tape 4b. Crank means, driven by a shaft 12, cause the swords 7 and the support means 18 to oscillate together about a lower axis 3 and the carriage 14 to travel up-and-down the support means 18. In Fig. 1 the belt 9 is fixed at its two ends 28, 29 and passes around fixed pulleys 23, 24 as well as a pulley 10 that is coupled to the driving wheel 5. The belt 9 also passes around a pair of pulleys 15, 16 that are mounted on the carriage 14. The carriage 14 is reciprocated along a pair of upwardly directed columns 18 by a crank and crankshaft mechanism 11. The reciprocating motion of the carriage 14 thus causes the belt 9 to rotate the driving wheel 5 back and forth. There may be two weft inserters, one of which takes the weft on one side of the shed and carries it to the middle of the shed where it is taken up by a weft inserter on the other side of the shed. It is possible for the pulley 10 to be displaced from the axis of the wheel 5 and to provide an additional pulley coupled to the wheel 5. An auxiliary belt extends around these two pulleys as shown in phantom lines. The angle of envelopement of the belt 9 on each of the two pulleys 15, 16 on the carriage 14 is preferably greater than 180 and Figs. 4-7 (not shown) show various dispositions of the pulleys 21-24 with respect to each other and the ends 28, 29 of the belt 9 to ensure that such an angle is achieved.
Patent GB-1115067-A (GB)
Title: Process of imparting wash and wear properties to cellulosic textiles and finishing solutions for use in such process
Inventor: GORDON ALEX FRANCIS
IPC: D06M13/137
Filed: 1965-06-22
Abstract: Cellulosic fabrics, e.g. fabrics containing cotton or viscose rayon alone or in admixture with polyester fibres are crease proofed and softened by treating them with an aqueous solution containing 2-26% by weight of an acetal produced by reacting at least one mol of formaldehyde per mol of a glycol or polyglycol having not more than 6 carbon atoms in the glycol molecule, or a mixture of such acetals, and not more than 10% by weight of a catalyst mixture, the components of which are preferably present in approximately equal amounts, comprising (1) an acid salt of a primary aliphatic amine RNH2X in which R is an alkyl group having no more than 6 carbon atoms and X is an acid and (2) a quarternary ammonium salt having the formula R-Y-CH2NR1R3R2, Hal in which R is an aliphatic hydrocarbon radical having 12-18 carbon atoms, Y is -O- or -CONH-, NR1R3R2 is a residue of a heterocyclic tertiary amine or an aliphatic tertiary amine and Hal is halogen, preferably to a wet pick up of 65-85% by weight based on the dry weight of the fabric drying, e.g. for 0.5-3 minutes at 200 DEG -260 DEG F, curing at 240 DEG -350 DEG F, preferably for 1-10 minutes, and optionally washing with water or soap and water to remove unreacted acetal and non-bound reaction products.  The acetal may be produced by the reaction of formaldehyde with ethylene glycol, diethylene glycol, 1,2- or 1,3- propylene glycol, pentaerythritol, dipentaerythritol, tripentaerythritol or glycerol.  Suitable amine salts are the hydrochloric, sulphuric, nitric, phosphoric and citric acid salts of monoethanolamine, butanolamine, ethylamine, 2-amino-1-butanol, 2-amine-2-methyl-1-propanol, 2-amino-2-methyl-1, 3-propanediol, 2-amino-2-ethyl-1, 3-proponediol or tris (hydroxymethyl) aminomethane and suitable quaternary ammonium compounds are stearamide methyl pyridinium chloride, octadecyl oxymethyl pyridinium chloride, oleyloxymethylpyridinium chloride, stearamide methyl picolinium chloride and stearamide methyl quinolinium chloride.  The aqueous solution may also contain 1.5-2.5% by weight of a third catalyst constituent which is a halide, oxyhalide, nitrate or sulphate of a metal of group 2, 3 or 4 of the Periodic Table, e.g. calcium or magnesium chloride, nitrate, bromide, chlorate or iodide, aluminium chloride or sulphate, boronfluoride, zinc silicofluoride and zirconium oxychloride, and/or citric, acetic, monochloracetic or formic acid, 0.1-5% by weight of a buffer, e.g. di- or tri-methylol melamine, triazine urea formaldehyde, resin precondensate, dimethylol ethylene urea, dimethylol dihydroxy ethylene urea and dicyandiamide, esters of stearyl alcohol and melamine formaldehyde, and 0.5-4% by weight of glycerine, glucose or sorbitol.
Patent GB-443851-A (GB)
Title: Improvements in and relating to valve mechanism for hydraulic presses
IPC: B30B15/16
Filed: 1934-09-15
Abstract: 443,851. Valves for hydraulic presses. SHAW & SONS (SALFORD), Ltd., J., and SHAW, J. B., Wellington Street, Salford, Lancashire. Sept. 15, 1934, No. 26509. [Classes 69 (ii) and 135] Valve mechanism for a hydraulic press comprises a pair of inlet and exhaust valves c, d for the main cylinder interconnected by a lever h so that one opens after the other has closed, and vice versa, and a double - acting pressure - influenced piston in a control cylinder i for operating the lever h, the piston being controlled by a pilot valve o. The inlet and exhaust valves e, f for the " jack cylinder are similarly operated by the same piston. The mechanism is combined with a valve l for changing over from low to high pressure, the said valve being operated by the building up of pressure in the low pressure ports. In Figs. 2, 3, the two pairs of valves c, d and f, e are loaded by springs g and operated by parallel levers h, the valves c, f when closed, acting as abutments for the fulcra of the levers whilst the valves d, e are opened, and valves d, e acting similarly when the valves f, c are opened. The levers h are loosely connected to a rod k pivoted to the piston rod of the piston which is constantly exposed on its smaller side to the low pressure fluid entering at a<2>. The larger side of the piston is also exposed to the low pressure when the pilot valve o is raised against its weight or hydraulic load by manual or electric means. The latter may comprise a solenoid o operated by a relay under the control of a hand- or time-controlled switch. The solenoid may be replaced by a motor and gearing. High pressure fluid entering at a<1> is under the control of the valve l operated against a spring by a lever m carrying a roller m<3>. The latter rests on a piston n, Fig. 4, exposed on its underside to the low pressure. The levers h, m have guides h<1>, m<2> respectively. High pressure fluid has constant access to the jack feed valve e by means of passages u, u<1>. Connections a<3>, a<4> a5 lead to the main and jack cylinders and to waste respectively. In operation, after the pilot valve o has been raised to allow low pressure fluid to pass to the under side of the piston j, the main cylinder feed valve c and the jack cylinder exhaust valve f open. When the press meets the work, the pressure builds up beneath the piston n which finally opens the valve l so that high pressure fluid may pass to the main cylinder by the valve c or through a separate port. The admission of high pressure fluid closes a non-return valve p which cuts off the low pressure supply. If desired, a single pilot valve may be arranged to control the valve mechanism of several presses. The valve l may be replaced by an independent valve operated electrically or by an independent pilot valve. The piston j may be operated by compressed air instead of the hydraulic fluid.
Patent GB-247261-A (GB)
Title: Improvements in the manufacture and production of vat colouring matters
IPC: C09B3/22
Filed: 1924-11-06
Abstract: 247,261. Johnson, J. Y., (Badische Anilin & Soda Fabrik). Nov. 6, 1924. Isodibenzanthrone is obtained, mixed with more or less dibenzanthrone, by treating benzanthrone or 2: 2<1>-dibenzanthronyl (Specification 203,533) with alkali alcholate so as to make the formation of dyestuff substantially complete. The proportions in which the two dyestuffs are formed vary with the temperature at which the reaction is effected and the alcohol used. The mixtures can be used as such or can be separated into their constituents, preferably after purification by fractional precipitation from sulphuric acid, by vatting whereupon the dibenzanthrone is dissolved while the isodibenzanthrone remains as such or as the difficultly soluble leuco compound. Examples are given of the treatment of benzanthrone or 2 : 2<1>-dibenzanthronyl with a mixture of caustic potash and methyl, ethyl, isopropyl, or n-butylalcohol, and of the purification and separation of the resulting mixtures : benzanthrone may also be heated with methyl alcoholic potash first at 105‹-110‹ C. for the formation of 2 : 2<1>- dibenzanthronyl and then at higher temperatures for production of the dyestuffs; the product may be purified by boiling with dimethylsulphate in trichlorbenzene, the impurities passing more readily into solution by this treatment. Specifications 16538/04 and 20837/06. [both in Class 2, Acids and salts. Organic &c.], are referred to.
Patent GB-1018253-A (GB)
Title: Improvements in or relating to rotary valves
Inventor: BARKER JOHN BENTLEY
IPC: B65G65/48
Filed: 1963-07-04
Abstract: 1,018,253. Rotary feeding valves; delivering measured quantities of granular material. RICHARDS STRUCTURAL STEEL CO. Ltd. July 3, 1964 [July 4, 1963], No. 26541/63. Headings B8A and B8N. [Also in Division H2A] A rotary feeding valve for mounting below a hopper containing granular material comprises a shell 15 having vanes 16 and an electrical driving motor 19 mounted within the shell and supported from one end thereof, the motor driving the shell via gearing 46, 50, 51. The shell is rotatable, at one end of a fixed shaft 28 formed integrally with an end plate 38 of the motor 19, the other end of the shell being provided with an end cap 25 rotatable in a cover plate 12 secured to the casing 10 of the valve. The rotor spindle 40 of the motor 19 is provided with an eccentric portion 44 which rotates a double gear 46, 51 meshing with teeth formed in an end plate 45 of the motor and the end cap 25 thereby rotating the shell. The inside of the shell is partly filled with oil for lubricating the gears.
Patent GB-422807-A (GB)
Title: Improvements in inflator connectors
IPC: B60S5/04
Filed: 1933-09-27
Abstract: 422,807. Pipe couplings. DUBIED & CIE SOC. ANON., E., Neuchatel, Swit. zerland. Sept. 27, 1933, No. 26590. Convention date, June 15. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 3, 1934.] [Class 99 (i)] [See also Groups XXIX and XIX] An inflator - connector 1 for pneumatic tyres which is fitted with an adjust - able pressure - regulating valve is connected to the tyre valve casing by three internally - threaded segments 28 having outer conical parts 291 whereby they are drawn together by the cam action of a housing 13 when the latter is moved towards the connector 1 by a lever 15. The segments 28 are pressed outwardly by a spring 29. Cam surfaces contacting wing members on the housing 13 are formed on the short arm of the lever 15. The tyre valve stem is depressed by a hollow pin 16 and its casing seats against a rubber ring 14.
Patent GB-777853-A (GB)
Title: Improvements in or relating to load hooks for lifting
IPC: B66C1/36
Filed: 1954-09-14
Abstract: 777,853. Hooks. AHLQUIST AKTIEBOLAGET, D. Sept. 14, 1954 [Jan. 20, 1954], No. 26659/54. Class 89 (2). A hook comprises a body 1 with an open hookshaped part 3, on the end of which is pivoted at 3<SP>1</SP> a two-armed lever 41, 4<SP>11</SP>, the arms 41 of which close the port 3 and are engaged by a shackle 6 urged downwardly by a leaf spring 13. The shackle may be locked in its engaging position by a, dowel inserted in hole 10. The arms 411 straddle part 3 and are supported by flanges 3<SP>11</SP> so as to lie below the inside face of part 3. In a modification, lever 41, 4<SP>11</SP> lies on one side only of the hook-body.
Patent GB-1154471-A (GB)
Title: Polishing and Figuring of Refractory Dielectric Materials
IPC: H01J37/30
Filed: 1966-06-15
Abstract: 1,154,471. Working stone &c. UNIVERSITY OF ARIZONA FOUNDATION OF TUCSON. 15 June, 1966 [16 June, 1965], No. 26739/66. Heading B5E. [Also in Division H1] In a method of figuring and polishing the surface of a body of refractory dielectric such as quartz, fused silica, glass, diamond, corundum or ceramic, the surface of the body is first examined so as to locate those areas of the surface which extend above a desired surface contour and the located areas are selectively bombarded with positive ions of an ion beam to erode away sufficient material to produce a surface conforming precisely to the desired contour. Specific applications are in respect of optical elements, gauge blocks, bearings, machine parts, gems, piezo-electric oscillators and electrical insulators. The beam power density at the surface of the body is at least 1 W/cm.<SP>2</SP> and the current density at least 6 ÁA/cm.<SP>2</SP> Protons or singly ionized hydrogen or neon molecules may be used and the beam directed on to the surface at an acute angle, e.g. 30 degrees. An electron beam is used to neutralize charging of the surface. After the polishing and figuring operation the surface may be coated by evaporation. In the apparatus shown the ion beam enters the working chamber 28 through a negative ring electrode 64 and bombards the rotatable and laterally movable workpiece 68. A cathode 74 and an anode 76 provide the neutralizing electron beam. The workpiece is observed interferometrically by passing a light beam through the windows 48, 50 and using a Twyman-Green interferometer. The ion beam may be monitored by rotating a plate 77 into the beam path. An evaporator is shown at 88 and a cold trap for stray carbon particles at 80. Specific examples relating depth of erosion for particular materials to voltage, current density and duration of treatment are given.
Patent GB-482664-A (GB)
Title: Process for the manufacture of shaped cellulose articles from cuprammonium cellulosesolutions
IPC: D01F2/04
Filed: 1936-10-02
Abstract: Shaped articles such as artificial silk, threads, bands, films, foils, and the like are obtained from cuprammonium cellulose solutions by precipitation in the presence of an aliphatic hydroxy p carboxylic acid having at least two hydroxy groups for each carboxylic acid group, or a water-soluble salt thereof.  The acid may be obtained by oxidation of a carbohydrate, and it may be isolated from the oxidation solution, or the latter may be used directly.  In case the crude solution still exhibits a reducing capacity towards Fehling's solution, this property may be removed by reduction with zinc dust in an alkaline medium, or by alkali treatment.  Saccharic, and arabonic acid are specified hydroxy carboxylic acids.  When an oxidation solution is used, this may contain oxalic, gluconic, or other acid in addition to saccharic acid.  The hydroxy carboxylic acid or salt thereof may be added to the cuprammonium cellulose solution or to the precipitating liquid.  In an example, a cuprammonium cellulose solution containing about 3 parts of saccharic acid per 100 parts of cellulose is extruded to form artificial silk by the stretch spinning process.  The presence of the hydroxy acid reduces the extent of precipitation of copper compounds on the glass walls of the spinning funnel.  In another example, a solution obtained by oxidizing starch with nitric acid at 90 DEG  C. is rendered alkaline by addition of caustic soda, and allowed to stand for several days until it ceases to have a reducing action on Fehling's solution. It is then decolorized by hydrogen peroxide or a hydrosulphite, or by filtration over fuller's earth, and then added to a cuprammonium cellulose solution which is spun to form artificial silk.
Patent GB-1115077-A (GB)
Title: Improvements in and relating to vapour generators
Inventor: WILLIAMSON MALCOLM RICHARD
IPC: G21C1/00
Filed: 1964-06-29
Abstract: 1,115,077. Cooling reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 28 June, 1965 [29 June, 1964], No. 26822/64. Heading G6C. In an integral nuclear reactor steam generating system the reactor core is mounted beneath a heat exchanger inside a pressure vessel. The exchanger occupies an annular chamber which surrounds a cylindrical trunk containing the control gear. Pumps, mounted in the upper part of the pressure vessel circulate coolant vertically upwards through the core and heat exchanger and downwards over the inner surface of the pressure vessel. The piping carrying the water supply to the heat exchangers is located in the chamber between the exchanger units so as to render the coolant flow uniform over the chamber cross-section.
Patent GB-1015873-A (GB)
Title: Process for the manufacture of a pesticide from petroleum hydrocarbons
IPC: C07C17/00
Filed: 1964-06-29
Abstract: Petroleum hydrocarbons boiling in the range at 35-155 DEG  C. are chlorinated with chlorine at a temperature not exceeding 30 DEG  C. in the presence of water and chlorinated petroleum hydrocarbons until the specific gravity of the partly chlorinated product rises to 1.30 to 1.35, the partly chlorinated product is separated from the aqueous phase and the chlorination of the resulting product is continued at a temperature not exceeding 30 DEG  C. until the specific gravity of the chlorinated product rises to 1.40-1.45.  The product has a chlorine content of about 60% by weight.  The water may be present as an aqueous solution of NaCl or CaCl2.ALSO:A pesticide is prepared from petroleum hydrocarbons boiling in the range of 35-155 DEG C. by chlorinating the hydrocarbons with chlorine at a temperature not exceeding 30 DEG C. in the presence of water and chlorinated petroleum hydrocarbons until the specific gravity of the partly chlorinated product rises to 1.30-1.35, separating the partly chlorinated product from the aqueous phase, and continuing the chlorination of the resulting product at a temperature not exceeding 30 DEG C. until the specific gravity of the chlorinated product rises to 1.40-1.45.  The product has a chlorine content of about 60% by weight.