baber/WOPTO huggingface dataset:
Patent GB-443101-A (GB)
Title: Improvements in and relating to the manufacture of sodium carbonate
IPC: C01D7/35
Filed: 1934-08-15
Abstract: Anhydrous sodium carbonate is obtained by evaporating solutions thereof at atmospheric or reduced pressure, the transition temperature of the reaction Na2CO3.1H2O --> Na2CO3 + H2O being lowered by the addition to the solution to be evaporated of a readily soluble compound or compounds of the alkali metals other than acid salts and compounds which form mixed crystals with sodium carbonate, and the amount of such addition being sufficient to lower the transition temperature to below the temperature at which the concentration is effected but not so great that separation of the additional substance or substances takes place.  Alternatively, hydrated sodium carbonates are converted into the anhydrous form by heating them, at atmospheric or sub-atmospheric pressure, in suspension in water to above the transition temperature, with evaporation if required, in the presence of the above additional substances present in the above defined amount.  Suitable alkali metal compounds are sodium chloride, sodium hydroxide and potassium hydroxide.  Light soda ash may be converted into heavy soda ash by converting the light soda ash into sodium carbonate monohydrate which is then converted into the anhydrous salt as described.  According to an example, light ash containing sodium chloride is introduced into a liquor containing sodium carbonate and 16,4 per cent of chloride. The mixture is digested at 80--90 DEG  C. until the light ash is converted into monohydrate when the temperature is raised to 106 DEG C.  The resulting anhydrous carbonate is removed by centrifuging and the mother liquor which has the same composition as that originally employed, is returned for use in further conversions.  When commercial sodium carbonate containing chloride is used, the process may be commenced with the addition of the minimum necessary amount of sodium chloride, the liquors being allowed to become enriched in the course of continuous operation.
Patent GB-424586-A (GB)
Title: Improvements in or relating to the impregnation of fibrous material
IPC: D06B3/00
Filed: 1933-08-24
Abstract: <PICT:0424586/IV/1> In apparatus for drying and impregnating materials, such as fibrous insulation materials in the manufacture of electric cables, under vacuum, the cable or other material is placed in an inner vacuum chamber contained within and raised to a higher degree of vacuum than an outer vacuum chamber.  The outer or primary vacuum chamber 1, which may be heated by a steam jacket or a steam dome 13 and heating coils 14, is provided with a cover 3 and an inlet 4 for the impregnating compound.  A roughing vacuum pump is connected to a pipe 5<1>.  The inner or secondary chamber 6 is comprised by a steel bell jar 7, the skirt of which is provided with transfer ports 9 and rests in a liquid seal 8.  A fine pump is adapted to exhaust the air from the inner chamber and is preferably welded on to the bell jar and arranged to exhaust into the primary chamber.  The pump may be of the jet, diffusion or condensation type and adapted to operate similarly to a mercury vapour pump, but is modified to use a mineral oil or other hydrocarbon.  The cable drum rests on wood blocks 19.  Both chambers are preliminarily evacuated by the roughing pump.  The fine pump can then be used to evacuate the inner chamber. When the evacuation has proceeded to the desired degree the impregnating compound is admitted by the pipe 4 and passes through the liquid seal and transfer ports to the inner chamber.  Leads from the interior of the secondary chamber may be led out through the liquid seal to permit thermal or electric tests to be made on the cable.
Patent GB-1241115-A (GB)
Title: Implement for extracting and inserting cotton wool or equivalent packing of bottles or like containers
Inventor: MULVANEY MICHAEL ANTHONY
IPC: B65D51/26
Filed: 1969-05-09
Abstract: 1,241,115. An implement for manipulating wads of packing in bottles &c. INTER-ALIA PHARMACEUTICAL SERVICES Ltd. 10 March, 1970 [9 May, 1969], No. 23668/69. Heading B8C. An implement for inserting and extracting wads of packing, such as cotton wool, into and out of bottles, jars, &c., particularly those used for -medicinal tablets, comprises a rigid stem 1 which acts as a handle and has an enlargement at one end provided with claws 3. The other end of the stem 1 has bulb 4 which is adapted to make a snap-engagement with a socket (6) on a cover cap (5), Fig. 2, not shown. The instrument is preferably made of plastics material.
Patent GB-387732-A (GB)
Title: Improvements in and relating to light measuring devices for photographic cameras
IPC: G01R27/28
Filed: 1931-08-24
Abstract: 387,732. Exposure meters. FALKENTHAL, E., 11, Humboldtstrasse, Dahlem, Berlin. Aug. 24, 1931, No. 23716. Convention date, Aug. 26, 1930. [Classes 97 (i) and 98 (i).] For determining the correct setting of the diaphragm (or equivalent) of a camera, a photoelectric cell (e.g. a light-activated E.M.F. cell) in series with a meter, and if desired a small auxiliary battery-is exposed through a diaphragm (or equivalent) which is adjusted to reduce the current to a predetermined value. The adjustment of the cellexposing diaphragm determines the setting of the camera diaphragm. In the construction illustrated the adjustable diaphragm O<2> for the cell Z is coupled with the camera diaphragm O<1> which is thereby automatically set. Alternatively, the cell Z<1> may be adapted to be moved into and out of the axis of the camera lens. The current meter A is fitted on the camera. Alternatively again the exposure meter may comprise an instrument separate from the camera. The Specification as open to inspection under Sect. 91 also includes the use of the method for controlling the radiation in an exposure chamber, for astronomical, biological or medicinal purposes. This subject-matter does not appear in the Specification as accepted.
Patent GB-532142-A (GB)
Title: Improvements in or relating to x-ray inspection apparatus
IPC: G01N23/04
Filed: 1939-08-17
Abstract: 532,142. R÷ntgen-ray inspection apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Aug. 17, 1939, No. 23753. [Class 98 (i)] X-ray inspection apparatus comprises a carriage on which is carried a shield having an opening in which a fluorescent screen is mounted and a source of X-rays in an impervious casing with a window spaced from the shield and arranged to project rays only on to the screen, there being an impervious observation sleeve extending outwardly from the shield, and a control switch, means for moving the article being inspected between the screen and X-ray source, means for marking the article, and means for immobilizing the. carriage being mounted in a shielded position accessible to the observer. The apparatus shown is intended for inspecting tyres and comprises a trolley supporting a casing 13 containing the X-ray tube and having a window 15 through which the rays pass to a fluorescent screen 11 mounted in a ray-impervious shield 27, which protects the observer. A conical sleeve 53 of ray-impervious material extends forwardly and upwardly of the screen 11 and carries an eye-shade 59. The trolley is run beneath the jacked-up wheel carrying the tyre and is maintained in position by depressing pivoted ieet 103 to raise the forward wheels from the ground. To rotate the tyre during inspection, a sprocket-wheel 75, which is chain-driven from a handle mounted on the front of the screen 27, carries arms 89 connected by cords 73 to a cap 69 screwed on the valve stem. To mark the tyre at desired points a plunger mounted in a sleeve 35 is depressed against a spring to bring its marking- hand 43 into contact with the tyre. Reference has been directed by the Comptroller to Specification 539,304.
Patent GB-532144-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F22D1/00
Filed: 1939-08-17
Abstract: 532,144. Tubular heat exchangers. MASCHINENFABRIK OERLIKON. Aug. 17, 1939, No. 23774. Convention date, Aug. 27, 1938. [Class 64 (iii)] Mechanical oscillations of high frequency are produced in the tubes or the fluid media of heat exchangers, in order to raise the coefficient of heat transfer. At one end of a tube 1 is a quartz ring 4 which is piezo-electrically excited by a valve generator 5. The direction of the vibration may be in the direction of the flow of heat, or at right-angles thereto.
Patent GB-156864-A (GB)
Title: Improvements in rick or stack ventilators
IPC: F23L17/02
Filed: 1919-09-27
Abstract: 156,864. Robinson, E. G. Sept. 27, 1919. Crops, storing and preserving. - A rick or stack ventilator which may be withdrawn from position by pulling at the outer end consists of a series of superposed downwardly tapered sections a joined by screw-threads or by spring looking-devices b. The sections may be perforated, and covered by a cowl f, Fig. 5, preferably formed of segmented pieces of metal g united by rivets passing through holes h so as to allow it to be folded flat for packing, &c.
Patent GB-326745-A (GB)
IPC: D05B21/00
Filed: 1929-08-03
Abstract: 326,745. Union Special-Maschinenfabrik Ges. Dec. 29, 1928, [Convention date]. Feed by clamps; presser-feet.- Circular articles such as powder puffs are fed in a circle by a circular plate given a step-by-step rotary movement, and are held by a circular presser-foot. The circular presserfoot b is resiliently carried in a bracket b adjustably secured to a bracket b<2> on the presser-bar b<3>. An adjustable auxiliary presser-foot b<4> is carried for engaging the overhanging edge of the fabric at the stitching point. The cloth is clamped between the presser-foot b and a circular plate a detachably keyed into a sleeve w with teeth q meshing with a cog p which is driven by the pinion o. The pinion o is given a step-by-step rotation by the revolving shaft e by a drum m, and link i. The link i is attached to the head h for adjustment to lengthen or shorten the feed steps and so the stitch. The feed plate a may be replaced by others of various sizes. Specification 326,746 is referred to.
Patent GB-1418056-A (GB)
Title: Concrete building blocks
IPC: C04B14/22
Filed: 1973-05-18
Abstract: 1418056 Concrete building blocks R A LUKINGS 18 May 1973 23952/73 Heading C1H A building block comprises a hydraulically cured mixture of up to 60 wt. per cent of solid glass chips having a sieve size of from ¢ inch to 50 mesh (U.S. Standard), cement and sand and/or gravel. The block may have a smooth surface and the glass may be coloured. In an example a block comprises a 4000 pound mixture of sand, gravel and glass and 420 pounds of Portland cement.
Patent GB-534854-A (GB)
Title: Improvements in or relating to delivering mechanism for delivering liquid such as fuel to tanks
IPC: B64D39/00
Filed: 1939-08-19
Abstract: 534,854. Float valves. FLIGHT REFUELLING, Ltd., COBHAM, Sir A. J., and TRIPP, E. J. Aug. 19, 1939, No. 23985. [Class 135] A valve device particularly adapted for controlling the delivery of fuel to the tanks of aircraft comprises a pipe 3 extending downwards in the tank and provided with a lower portion 6 constituting a valve seat with delivery ports 7 and a float-actuated sleeve 8 slidable over the valve seat. As shown in Fig. 1, the sleeve is formed with a part of larger diameter slidable in a guide sleeve 9 to provide a shoulder acted on by the fluid in the pipe 3 as the valve nears its closed position. Small apertures 10 are formed in the sleeve or pipe 3 to prevent a vacuum forming in the guide. The shoulder is also subject in the closed' position to the difference in the static heads in the delivery pipe and banks until such time as leakage past the valve has equalized these pressures. The valve is actuated by an annular float slidable on the pipe 3 and connected by a series of links and levers to the valve at 16. A spring-loaded relief valve 7 is arranged in a ported fitting 20 formed in the lower end of the pipe 3. In a modification, the annular float is replaced by a hinged float. According to the Provisional Specification a plurality of floats may be employed. This Specification also describes a form in which the delivery pipe is hinged and has a float secured to it so that the discharge end is maintained just below the level in the tank. The pivotal movement of the delivery pipe is used to operate a rotary or flap valve incorporated in a filler fitting at or near the top of the tank. The same movement may be utilized either by direct or geared action to operate a contents gauge.
Patent GB-1286427-A (GB)
Title: Process of purifying lactams
Inventor: SCHWARZ HANS HELMUT
IPC: C08G69/16
Filed: 1971-04-19
Abstract: 1286427 Purifying lactams FARBENFABRIKEN BAYER AG 19 April 1971 [26 March 1970] 24018/71 Heading C2C In a process for the removal of at least one oxime from at least one oxime-containing lactam obtained by the catalytic rearrangement of an oxime in the gaseous phase, sulphur dioxide is introduced at a temperature of from 70‹ to 170‹ C. into the lactam until the concentration of the sulphur dioxide is at least 1 mol. per mol. of the oxime; and on completion of the reaction, the excess sulphur dioxide is removed and the lactam is recovered by distillation. Sodium hydroxide is preferably added before the distillation.
Patent GB-899653-A (GB)
Title: Improvements relating to the hydrogenation of gasolines
IPC: C10G45/36
Filed: 1958-07-25
Abstract: The tendency of a gasoline containing unsaturated hydrocarbons to form gum is reduced by hydrogenating the gasoline in the presence of a catalyst prepared by (a) impregnating a support with a solution of a complex formed between ammonia and a substantially waterinsoluble nickel salt of an aliphatic monocarboxylic acid, and then (b) reducing the complex to elemental nickel to active the catalyst.  The nickel salt used in preparing the catalyst may be nickel formate, white the catalyst support may be a Group II metal carbonate, sepiolite, calcium, barium, strontium or magnesium oxide, diatomaceous earth (or firebrick derived therefrom), silicon carbide, quartz, carbon, pumice or activated or deactivated alumina.  In examples, steam cracker gasoline is hydrogenated in the presence of a supported nickel catalyst, the catalyst support being firebrick or sepiolite (with or without 1% of graphite).  The supported nickel catalyst is prepared by impregnating the support with aqueous ammoniacal nickel formate solution, drying in air at 100 DEG C. and activating by heating to 250 DEG C. in a stream of nitrogen or hydrogen.  For comparison purposes, the catalytic hydrogenation of steam cracker gasoline is described, wherein the catalyst employed is one obtained by forming a paste of nickel formate, sepiolite, graphite and water, drying at 100 DEG C., pelletting, and activating by heating to 250 DEG C. in a stream of hydrogen.  Specifications 899,651 and 899,652 are referred to.
Patent GB-912073-A (GB)
Title: Process of cleaning and coating aluminium
Inventor: BULLOFF JACK JOHN
IPC: C23C16/08
Filed: 1959-07-14
Abstract: 912,073. Coating with metals. UNION CARBIDE' CORPORATION. July 14, 1959, No. 24094/59. Class 82 (2). The surface of aluminium is deoxidized by passing through fused cryolite and the oxide free surface contacted with an oxygen free metal bearing compound which reacts with the aluminium surface to produce a metallic deposit and a volatile aluminium compound. As shown, aluminium strip 2 is passed through heated cryolite bath 17 and passes to sealed chambers 45, 47, 49, 51, 53 and 55 which may be evacuated or filled with argon. In compartment 49 the surface of the hot aluminium may react with a halide of osmium, molybdenum, gallium, beryllium, iron, rhenium, tellurium, antimony, bismuth and gold to form an undercoating while a top coating of these metals or of titanium, tantalum, iridium, tungsten, boron, hafnium, zirconium or silicon may be formed in chambers 53, or 55 by the reaction of the halide of the metal with hydrogen to decompose the salt and deposit the metal, while the acid vapour is withdrawn at 67 or 68. U.S.A. Specifications 2,580,976 and 2,657,457 are referred to.
Patent GB-391013-A (GB)
Title: Improvements in tea-pots
IPC: A47G19/12
Filed: 1932-08-30
Abstract: 391,013. Teapots. WILSON, 1. H., 26, Fairlight Street, Manly, near Sydney, Australia. Aug. 30, 1932, No. 24158. [Class 129.] A teapot comprises a body portion with a projection 6 for preventing falling off of the lid 3, and a stirrer 5 in the form of a twobladed propeller.
Patent GB-316449-A (GB)
Title: Improvements in or relating to electrical transformers
IPC: H01F19/02
Filed: 1928-08-22
Abstract: 316,449. Shaw, W. L., Joseph, J., and Radio Instruments, Ltd. Aug. 22, 1928. Binding-posts 21 are provided with hollow shanks through which the non-detachable leads are threaded and secured by soldering at the top.
Patent GB-1458713-A (GB)
Title: Process for preparing 2,6-dimethylnaphthalenes
IPC: B01J23/00
Filed: 1974-05-31
Abstract: 1458713 2,6-Dimethylnaphthalenes TEIJIN Ltd 31.May 1974 [31 May 1973] 24261/74 Heading C5E A process for the preparation of 2,6-dimethylnaphthalene, which comprises isomerizing a mixture of dimethylnaphthalenes containing less than the thermodynamic equilibrium concentration of the 2,6-isomer in the presence of a solid acid catalyst, recovering 2,6-dimethylnaphthalene from the resulting isomerized reaction mixture by crystallization, recycling to the reaction system the residue remaining after the compounds having boiling points lower than the lowest boiling dimethylnaphthalene in the mixture and/or components having boiling points higher higher than the highest boiling dimethylnaphthalene in the mixture by distillation at any stage of the process, the starting material for the isomerization satisfying the condition and the reaction conditions being such that Suitable isomerization catalysts are SiO 2 - Al 2 O 3 , SiO-MgO, SiO 2 -ZrO 2 , Sip 2 -Al 2 O 3 - ZrO 2  fuller's earth, mordenite, and zeolites X, Y, A and L. The isomerization may be carried out in the liquid or vapour phase at 200-500 C.
Patent GB-1269099-A (GB)
Title: A continuous transit pickler for endless strips
Inventor: SPEELMANS RUDOLF
IPC: C23G3/02
Filed: 1969-05-13
Abstract: 1,269,099. Continuous transit pickler. MOELLER & NEUMANN G.m.b.H. May 13, 1969 [May 18, 1968], No.24370/69. Heading C7E. A continuous transit pickler for elongated strips comprises an acid container divided into several chambers 3, 4, 5, and 6 by walls or weirs 2, a suspension pit 24 located before the acid container and a device 31 at the exit end of the acid container for pulling a strip 25 therethrough, freely rotatable rollers 26 which support and guide the strip being the only strip engaging means disposed between the suspension pit and the acid container. Should the strip break, e.g. in container 3, valve 12 is opened and acid from 3 drained into tank 16, division walls 34, 35 are inserted as shown, pickling gas, e.g. HCl, is drawn off, cover hoods 20 between 34 and 35 are removed, the strip is apertured at the fracture and a flexible connecting unit inserted, walls 34 and 35 are removed, the acid and hoods replaced and the process is again continued.
Patent GB-647213-A (GB)
Title: Improvements in or relating to metal working presses
Inventor: WHITLAM HUBERT JOHN
IPC: B21D45/00
Filed: 1947-09-05
Abstract: 647,213. Punching. HUNTON, Ltd. Sept. 5, 1947, No. 24545. Addition to 602,630. [Class 83 (iv)] The punch-holder of the parent Specification is provided with a spring-loaded stripper plate. The punch 30 in the holder C slides in the aperture 3 of a diamond-shaped stripper-plate 1 which is yieldingly-supported by springs 8. Plunger rods 4 secured to the plate 1 and guided in the flanges 6, 7 of the holder C make contact with a stationary part of the press and prevent the sheet metal S from rising as the punch 30 is withdrawn. The stripper plate 1 may have a shoulder 10 and may be of the same shape as the holder C.
Patent GB-784262-A (GB)
Title: Improvements in and relating to adaptors or connector pieces for gas meters or like throughflow appliances
Inventor: JANSSEN HELMUT
IPC: G01F15/18
Filed: 1955-08-26
Abstract: 784,262. Pipe connections. KROMSCHRODER AKT.-GES., G. Dec. 30, 1955 [Aug. 28, 1955 ; Sept. 29, 1955], Nos. 24568/55 and 27735/55. Class 99(1). An adaptor for connecting a through-flow appliance such as a gas meter 7, a gas regulator or control device, or a water or other fluid meter, in a service or installation pipe-line, has branches 12, 13 the upper ends of which are connected to the pipe-line and the lower ends of which are used when connection is to be made with a meter having spaced-apart inlet and outlet pipes, and either a common coupling element for connection with a meter having coaxial inlet and outlet conduits 5, 6 or, alternatively, a common element for connection with a meter having side-by-side conduits as in Fig. 3 (not shown).. The branches 12, 13 are sealed by plugs 12a, 13a when the adaptor is used with a meter with coaxial or side-by-side conduits, and the latter are sealed by a cap when the meter is one with spaced-apart conduits. To avoid fouling the top of a meter having spaced-apart inlets &c., the branches 12, 13 may be fitted in the reverse position to that shown. Where the spacing between the meter inlets and outlets varies, adjustment may be effected by means of a screwed sleeve 16 or offset junction pieces may be used between the branches and the meter. Additional connection pieces 10a, 11a may be provided so that connection may be made to horizontal and/or vertical branches on the pipe-line. The closure cap for the common coupling element may be constructed so as to allow communication between the coaxial or side-by side passages in the adaptor. Reference has been directed by the Comptroller to Specification 757,689.
Patent GB-1131975-A (GB)
Title: A thermostat-controlled regulating valve
IPC: F16K31/68
Filed: 1966-06-02
Abstract: 1,131,975. Valves. P. KREIS. 2 June, 1966 [15 June, 1965], No. 24590/66. Heading F2V. A thermostatically controlled regulating valve for liquid or gaseous media such as the fuel supply of gas- or oilfired heating apparatus comprises a cylindrical valve chamber 2, an axial flow duct 4, a lateral flow duct 3, a piston 6 with an axial spigot 7 for entering and closing the axial flow duct, and a bellows 21 for displacing the piston under the control of a liquid thermostat (45, Fig. 3, not shown). A by-pass bore 16 is provided in the spigot which is biased into the open position by a spring 10. The temperature dependent closing point of the valve is adjusted by means of a hand wheel 28 and a threaded cap nut 25 having a self-looking action. The valve and thermostat are mounted on a plate (40).
Patent GB-774263-A (GB)
Title: Treatment of cellulosic materials to impart flame resistance thereof
Inventor: KENAGA DUANE LEROY
IPC: D06M13/288
Filed: 1955-08-26
Abstract: 774,263. Fireproofing cellulosic material; preserving wood. DOW CHEMICAL CO. Aug. 26, 1955, No. 24626/55. Class 140. Cellulosic material is rendered fire-retardant by impregnation with a solution consisting of a bis - (omega - monohaloalkyl) - omega - monohaloalkane phosphonate, in which the alkyl and alkane groups are alike and contain 2 or 3 carbon atoms, and in which the halogens are chlorine or bromine, dissolved in a volatile solvent; and thereafter substantially all the solvent is removed. Specified phosphonates are bis-(2- bromoethyl)- 2 - bromoethane phosphonate and bis - (2 - chloroethyl) - 2 - chloroethane phosphonate. Specified solvents are orthodichlorobenzene aromatic mineral spirits, ethanol, or a petroleum-creosote wood preservative. Wood, textiles or paper may be treated. Impregnation may be accomplished by the full cell pressure process, the empty cell process, dipping or soaking. Examples describe the treatment of wood blocks, veneer panels and stakes, and strips of canvas duck.