baber/WOPTO huggingface dataset:
Patent GB-1275290-A (GB)
Title: Improvements in and relating to the manufacture of monoaxially stretched films
IPC: B29C55/02
Filed: 1969-07-11
Abstract: 1275290 Stretching and cutting films longitudinally KALLE AG 11 July 1969 [12 July 1968 3 Aug 1968] 35075/69 Heading B5B Thermoplastic film is stretched longitudinally in two stages, the first stage using a narrow stretching gap system in which the stretching gap length is only a fraction of the film width and not more than a few centimetres, and the second stage using a wide stretching gap system in which the stretching gap length is of the order of the film width and up to several metres; longitudinal cutting of the film may take place after at least one of the stretching stages, preferably between the two stages, and may result in film strips of high or low fibrillation tendency according to the proportion of the total stretching carried out in each stage. Stretching apparatus includes roller systems defining a narrow stretching gap 12 and a wide stretching gap 17, a cutting device 14, and a heating device 15. Each stretching stage may be subdivided (Fig. 4, not shown). Stretching ratios may be form 2 : 1 to 6 : 1 in the narrow gap system and from 1À2 : 1 to 5 : 1 in the wide gap system. Preferred materials are polypropylene and high density polyethylene.
Patent GB-1151216-A (GB)
Title: Hydraulic Turbo Couplings
Inventor: BILTON JOHN
IPC: F16D33/18
Filed: 1965-08-16
Abstract: 1,151,216. Hydraulic couplings. FLUIDRIVE ENG. CO. Ltd. 8 Aug., 1966 [16 Aug., 1965], No. 35101/65. Heading F2C. An hydraulic coupling having a constant filling of liquid whose vapour pressure increases significantly with the working temperature is provided with a bursting disc 26, preferably of nickel, at the outer end of a radial tube 21 and arranged to rupture to allow escape of the liquid when the internal pressure in the coupling exceeds a predetermined value. The ring 26 is secured by a seating member 25 and a screwed retainer 28 having a number of outlet holes 29 of a size sufficient to halt the temperature rise in the coupling after fracture of the disc 26. In the arrangement shown a balance weight 31 opposite tube 21 incorporates a fusible plug 35 whose operating temperature is arranged to be slightly below that of the disc 26, so that the latter operates only if the plug fails to do so, e.g. due to tampering. The shaft seal includes a gland 18 which is arranged to fail at a pressure slightly in excess of that of disc 26.
Patent GB-282803-A (GB)
Title: Manufacture of alkylisorosinduline-sulphonic acids
IPC: C09B17/04
Filed: 1927-12-28
Abstract: 282,803. Geigy Akt.-Ges., J. R. Dec. 27, 1926, [Convention date]. Azine dyes.-By treating a chlorisorosinduline having the general formula in which R and R<1> are hydrogen or alkyl, with a sulphite in an organic solvent, the chlorine is removed and the leuco 1: 6-disulphonic acid is formed. The latter is then oxidized to produce the dyestuff. In an example, 1-chlor-3-diethylisorosinduline hydrochloride (from phenyl-2- naphthylamine and nitroso-3-chlordiethylaniline hydrochloride) is treated with sodium bisulphite in boiling alcohol. The resulting leuco 1: 6-disulphonic acid is oxidized by means of air and salted out. 1-Chlor-3-dimethylisorosudulene hydrochloride, 1-Chlor-3-diethyl-11-methylisorosinduline sulphate or 1-chlor-3-diethyl-13-chlorisorosinduline nitrate, which may be prepared in a similar manner to the 1-chlor-3-diethylisorosindiline hydrochloride may be substituted for the latter. Polyhydric and other monohydric alcohols may be used as solvents and any neutral or acid sulphite may replace the sodium bisulphite. The products dye wool from an acid bath blue shades, and may be used in the production of naphthosafranine dyestuffs. Specification 14962/98 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the treatment of similar chlorisorosindulines in which Rand R<1> are aryl residues. This subject-matter does not appear in the Specification as accepted.
Patent GB-1367230-A (GB)
Title: Method of and apparatus for forming an ice sheet
IPC: B63B71/20
Filed: 1972-07-27
Abstract: 1367230 Testing marine models ARCTEC Inc 27 July 1972 [30 July 1971] 35172/72 Heading B7M [Also in Division F4] A sheet of ice is formed on the surface of a pool of saline water by spraying liquid nitrogen on to the pool, and a scale model of a marine structure is then moved in interaction with the ice sheet for testing purposes. As illustrated, the pool is formed in an open topped container and lies beneath the blackened ceiling 16 of an insulated cold room 10. The liquid nitrogen spraying system illustrated in Fig. 2 is located between the pool and the ceiling and indirectly cools the latter to a temperature of about -320‹ F. Liquid nitrogen is supplied from a tank 31 via a shut-off valve a and a flow rate control valve b to four sets of headers g. Each header bears lower nozzles f for spraying liquid nitrogen and upper nozzles e from which vaporized nitrogen issues. The nozzles are horizontally directed. The required ice growth rate is chosen to give an ice sheet of a salinity which corresponds to the desired properties of the sheet. Using valve b, the temperature of the pool environment is lowered to, and maintained at, a level which will give the required ice growth rate. Valves d are then used to give local control. If the ice sheet properties are to vary along the pool, the pool is temporarily divided by baffles 27 and valves d are used to exercise general control over the separated areas. Probes, Fig. 3 (not shown), monitor the temperature of the environment above the surface of the pool. Further probes beneath the surface of the pool monitor the growth of the ice sheet. When a sheet of sufficient thickness has been formed, fresh air is admitted to the room through a cooling and dehumidifying liquid nitrogen heat exchanger 34 to flush the room and make it habitable for humans. Thereafter, liquid nitrogen is admitted to the headers at a low flow rate to maintain the desired ice conditions while the marine model 14, suspended from a carriage 13, is moved in interaction with the sheet.
Patent GB-1101323-A (GB)
Title: Articles of bonded particulate material
Inventor: BEANEY PETER AUSTEN
IPC: B22C1/18
Filed: 1965-08-17
Abstract: Particulate material, e.g. sand, is bonded by mixing with aqueous alkali metal silicate, silicon or ferrosilicon, dicalcium silicate, and lime. the mixture is shaped and allowed to harden. The silicon or ferrosilicon, dicalcium silicate, and lime may be premixed, e.g. 10-45% of each being used.  The composition may be used for sand moulds and cores.
Patent GB-207410-A (GB)
Title: Improvements relating to steam turbine installations
IPC: F01D1/02
Filed: 1923-01-04
Abstract: 207,410. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Jan. 4, 1923. Motor power plant. -Relates to a three stage steam turbine having a high-pressure stage and a lowpressure stage on one shaft and an intermediate stage and a lowpressure stage on a second stage and connections to permit the division of the installation into two two - stage turbines, the high-pressure stage exhausting directly to a low-pressure stage and high-pressure steam being introduced directly to the intermediate stage, and consists in providing, for the two stage working, an additional high-pressure stage with segmental admission in the casing of the intermediate stage and constructing the blading &c. so that when high-pressure steam is expanded in this additional stage it reaches the normal intermediate stage at a temperature practically that obtaining in the low-pressure stage and consequently little or no work is done by it in the intermediate stage. The rotor wheel 28 of the additional high-pressure stage is enclosed by walls 35 except for the part adjacent the segment of nozzles 26.
Patent GB-342808-A (GB)
Title: Improvements in the method of and means for cleansing pipes, conduits, and the like
IPC: B08B9/02
Filed: 1929-11-19
Abstract: 342,808. Cleaning beer-engine and other pipes. GREEN, H. E., Holdernesse, Hornchurch, Essex. Nov. 19, 1929, No. 35375. [Class 99 (ii).] The suction and delivery pipes d, 12 of a number of beer engines &c. 1 are cleaned by connecting them in series and then circulating water, or small beads &c., through the circuit. The beer engines are provided with valved junctions 5, 8 at their inlets and outlets so that during the cleaning operation they may be bypassed. In cleaning, Fig. 4, the delivery pipes 12 are connected in pairs by flexible pipes 13, the lower end of the suction pipes d by pipes 11 as shown, a circulating pump 17 being fitted in one of them, and the junctions 5, 8 are also connected together. A filter 16 may be included in the circuit. When it is desired to clean the suction pipes only, instead of connecting the junctions 5 to the junctions 8 they are connected in pairs by pipes 6.
Patent GB-774145-A (GB)
Title: Improvements in and relating to electric isolator switches
Inventor: WILSON JOHN THOMAS
IPC: H01H9/16
Filed: 1954-12-07
Abstract: 774,145. Indicators for switches. ENGLISH ELECTRIC CO., Ltd. Dec. 6. 1955 [Dec. 7, 1954], No. 35396/54. Class 38(5)  An indicator 12, visible through, a window 1 is only moved to the "off"  position at the extreme end of the stroke of the operating member 3 of an isolator switch, when a latch 16, which has been resting on a quadrant 4 fixed to the lever 3, falls and operates  the indicator by means of a link 15. The nose of the quadrant then engages behind a step 19 in the latch 16 so that the return "on" movement of the lever 3 cannot be made till the latch 16 has been lifted by hand. The handle 3 is adapted to slide into the quadrant 4 so that it is completely within the casing 1. The aperture in the casing through which the handle has projected can then be closed by a spring-biased lid which can be locked to the casing.
Patent GB-1059317-A (GB)
Title: A method of purifying the recycle solution used in the production of hydrogen peroxide by the anthraquinone process
Inventor: SCHUMANN DIETER
IPC: C01B15/023
Filed: 1963-09-09
Abstract: Active alkylanthraquinones (i.e. alkylanthraquinone and alkyltetrahydroanthraquinone compounds) obtained in a fraction by the distillation of a partly degenerated recycle solution used in the production of hydrogen peroxide by the anthraquinone process (see Division C1) are reduced in an aqueous alkaline medium to form the soluble alkali metal salts of alkylanthrahydroquinones, the undissolved components are then removed and the salts are converted by oxidation into the waterinsoluble alkylantraquinones which are recovered and used to fortify another portion of the recycle solution.  The reducing agent used in the reduction step may be sodium dithionate or powdered zinc and this step is preferably performed in an inert atmosphere, e.g. nitrogen. An alkali metal hydroxide may be used for producing the aqueous alkaline solution and the oxidation may be effected with air in the presence of solvents. Recycle solutions containing 2-ethyl, 2-isopropyl-, 2-tert-butyl-, 2-amyl and 2-octyl anthraquinones or their mixtures are particularly referred to.ALSO:The recycle solution used in the production of hydrogen peroxide by the anthraquinone process is purified by fractionally distilling the partly degenerated recycle solution to obtain a first fraction containing solvents and a second higher temperature fraction containing the alkyl anthraquinone, the active alkylanthraquinones (i.e. alkylanthraquinone and alkyltetrahydroanthraquinone compounds) in the latter fraction are reduced in an aqueous alkaline medium to form the soluble alkali metal salts of alkylanthrahydroquinones, the undissolved components are then removed and the salts are converted by oxidation into water-insoluble alkylanthraquinones which are used to fortify another portion of the recycle solution.  The reducing agent used in the reduction step may be sodium dithionite or powdered zinc and this step is preferably performed in an inert atmosphere, e.g. nitrogen. An alkali metal hydroxide may be used for producing the aqueous alkaline solution.  The oxidation may be effected in the aqueous reaction solution with air in the presence of solvents, preferably those recovered in the preceding fractionation of the recycle solution, to form a solution which is then used to fortify the recycle solution.  The recycle solution may first be subjected to regeneration by a method known per se.
Patent GB-1167638-A (GB)
Title: Improvements relating to Leg Structures
Inventor: BRADLEY DAVID WILLIAM
IPC: A24F19/00
Filed: 1967-08-03
Abstract: 1,167,638. Candle holder. IAN HEATH Ltd. 29 July, 1968 [3 Aug., 1967], No. 35596/67. Heading F4T. A candle holder comprises three holders 10, each for receiving a candle, supported by a framework consisting of three leg elements 12 adapted for assembly with one another by the provision on each leg element of two coupling parts, each comprising one component of a male and female joint structure such as a spigot and socket, each of said elements also having a foot portion 13 to rest on a supporting surface. As shown, the joint structure comprises a frusto-conical spigot 14 provided with an externally threaded extension stem 15 and a socket in the form of a sleeve 16 open at both ends mounted at opposite ends of the leg element which has an asymmetrical U-shape, the spigot being on the shorter limb 12a and the sleeve attached at its lateral external wall to the longer limb 12b. When assembled the holder 10, which has an internally threaded bush 11, is threaded on to the stem 15, which then projects beyond the sleeve, to retain the framework in its assembled state. A plate 17 fitted between the holder and the sleeve 16 serves as a washer and trap for candle wax which may drip from the holder. The number of leg elements and the shape of the spigot and socket may be varied if desired. Also, one holder 10 may be associated with a number of spigot-and-socket joints.
Patent GB-1109339-A (GB)
Title: Pressure hold off valve more particularly for a braking system
IPC: B60T11/34
Filed: 1966-08-09
Abstract: 1,109,339. Fluid pressure braking system; valves. BENDIX CORPORATION. 9 Aug., 1966 [27 Aug., 1965], No. 35642/66. Headings F2F and F2V. A fluid pressure braking system is provided with a pressure hold off valve 20 between a master cylinder and front disc brakes of a vehicle (Fig. 1, not shown) such that pressure fluid is allowed to flow through the valve to actuate the front disc brakes of the vehicle when the pressure build up in the system is sufficient to actuate rear drum brakes of the vehicle. The valve comprises a casing having an inlet port 56 and an outlet port 68 and interposed between the ports a pressure relief valve allowing fluid flow from the inlet port to the outlet port and a compensating check valve in parallel with the relief valve and allowing flow only in the opposite direction from the relief valve. The relief valve comprises a spring-loaded plunger 30 seating against a diaphragm 60 of a further spring-loaded plunger 32. The spring loading of the plunger 32 is variable. The movements of the two plungers 30, 32 are limited by stops 70, 46 respectively such that on increasing the pressure at the inlet end of the valve 20 the plungers move together until plunger 30 is brought to rest whence the relief valve opens to allow fluid to pass to the outlet port 68. The diaphragm 60 and ports 64 in the plunger 32 act as the compensating check valve.
Patent GB-467274-A (GB)
Title: The manufacture of 4-hydroxynaphthostyril and its substitution products
IPC: C07D209/92
Filed: 1935-12-24
Abstract: 4 - Hydroxynaphthostyril and its substitution products are manufactured by heating the mineral acid salts of 4-aminonaphthostyril or its substitution products at about 150--200 DEG  C. in the presence of water.  The products may be used for the manufacture of dyestuffs and pharmaceutical products.  In examples: (1) 4 - aminonaphthostyril is heated with dilute hydrochloric or sulphuric acid to produce 4-hydroxynaphthostyril, which by methylation yields 4-methoxynaphthostyril; (2) the acid sulphate or hydrochloride of 4-aminonaphthostyril is heated with water; 4-amino-N-methyl-and -ethylnaphthostyril may be similarly treated; (3) 4 - amino - N - phenylnaphthostyril is heated with dilute hydrochloric acid yielding N - phenyl - 4 - hydroxynaphthostyril; there may be similarly obtained other N-aryl-4-hydroxynaphthostyrils, e.g. the N-2<1>- and 4<1>-methoxyphenyl-, 3<1>- and 4<1>-chlorophenyl-, 4<1>-diphenyl-, b -naphthyl- and cyclohexyl-compounds; (4) 4-amino-2-chloronaphthostyril is heated with dilute sulphuric acid, producing 4 - hydroxy - 2 - chloronaphthostyril; there may be similarly obtained 2-halogen-N-alkyl-and N - phenyl - 4 - hydroxynaphthostyrils, e.g. the 2-chloro- and 2-bromo-N-methyl-and 2-chloro-N-phenyl-compounds. Specification 276,126, [Class 2 (iii)], is referred to. Aminonaphthostyrils.--4 - Aminonaphthostyril is obtainable by nitrating naphthostyril with nitric and sulphuric acids and reducing the nitro group with iron and acetic acid. 4-Amino-N-methyl-and N-ethylnaphthostyril are obtainable by acting with methylamine and ethylamine respectively on 4-nitro-1-chloro-8-naphthoic acid and reducing the product. 4-Amino-N-phenylnaphthostyril and the starting materials for the other products described in example (3) above are obtainable by treating 1 : 8-chlornaphthoic acid with the appropriate amines, nitrating and reducing.  4 - Amino - 2 - chloronaphthostyril and its N-methyl and N-phenyl derivatives are obtainable by treating the corresponding 4-nitronaphthostyrils with sulphuryl chloride, followed by reduction.  4-Amino-2-bromo-N-methylnaphthostyril is similarly obtainable by the use of bromine in place of sulphuryl chloride.
Patent GB-730770-A (GB)
Title: Statistical record card ejector mechanism
IPC: G06K13/12
Filed: 1953-12-23
Abstract: 730,770. Statistical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 23, 1953 [Dec. 26, 1952], No. 35730/53. Class 106 (1). Apparatus for use with a record card controlled machine of the type described in Specification 684,273, [Group XVI], provides that the cards are stacked in reverse order as they leave the machine, i.e. with the succeeding cards on top of the preceding ones. The apparatus comprises conveyer means for continuing the advance of the record card after its trailing edge moves beyond the drum and collector means for receiving the record cards on discharge from the conveyer means. Fig. 3 shows the stacking mechanism of the apparatus described in the above prior Speci. fication in which the cards are deposited by the drum 36 between the drum and a sliding weight 50 in the order in which they pass through the machine, the first being on top of the pile and the last at the bottom. Fig. 2 shows the device according to the invention which used in conjunc. tion with the apparatus shown in Fig. 3, results in the cards being stacked in reverse order after leaving the drum, i.e. with the last card on the top of the stack. The apparatus for reversing the order of stacking is hingedly mounted at 55 and may be swung out of the way when normal stacking is desired. Rotatably mounted on each end of a shaft 74 is a roller 75 having a pulley secured thereto by which it is linked by a belt 77 with a related pulley-wheel 79 mounted on shaft 69. The drum 36 contains a pair of annular rubber inserts, not shown, around the circumference to drive the rollers 75. As each record is advanced from the eject station by the fingers 21 the leading edges thereof engage the drum and the pair of clips 41 adjacent thereto open to receive the leading edge of the card. This opening action deflects the related spring member 66 upwards so that the leading edge of the record is deflected over the top of the clips and spring members 66. As the record passes between the rollers 75 and the drum 36 the rollers maintain the record in contact with the drum advancing it over the guide plate 65. As the record passes over the guide plate the leading edge deflects upwards a spring guide 81 which keeps the card flat. As the trailing edge of the card advances out of engagement with the drum 36 and rollers 75 its leading edge has already engaged pressure-rollers 83 mounted on shaft 84, these rollers force the card against the belts 77 by which the record card continues to advance over the plate 65. As the leading edge of the card passes beyond the plate 65 it engages spring guide members 85 and the record falls face up to the bottom of the stacker box 64. The next record falls face up on top of the last and so on.
Patent GB-766123-A (GB)
Title: Synthetic resin adhesives
Inventor: BROOKES ALFRED
IPC: C08L61/10
Filed: 1953-12-24
Abstract: An adhesive comprises an aqueous solution of an alkali-condensed resin from a phenol and formaldehyde in which solution is dispersed a resin powder from a phenol and formaldehyde, the resin powder being one which is substantially insoluble in water at ordinary temperatures but is such as will swell, without dissolving, in the solution on heating.  The ratio of phenol to formaldehyde in the liquid resin may range from 1 : 1.2 to 1 : 3 mols., and the alkali may range from 0.2 to 0.75 mol. per mol. of phenol.  The resin powder may be made from phenol, cresols or mixtures of phenol with cresols or xylenols, but is preferably derived from the liquid resin, e.g. by concentrating the solution and drying and grinding the resulting resin, by spraydrying, by impregnating the liquid resin into an absorbent finely-divided filler, e.g. wood flour, and drying the mixture, or by heating a mixture of phenol, formaldehyde, alkali and drying the mixture.  The resin powder may be further heat-treated by baking or stoving to advance the cure thereof.  Fillers and extenders such as chalk, slate powder, clays, diatomaceous earth, wood flour, starches, e.g. maize powder starch, dextrins, gums and proteins may be added.  Hardening accelerators such as acid-condensed phenolic resins, maleic acid-phthalic anhydridepropylene glycol condensate, paraformaldehyde, urea-formaldehyde resin, polymethylol melamine, diphenyl phthalate, ethyl acetate, phenyl acetate, glyceryl di-acetate, casein, oxamide, microcosmic salt and guanidine carbonate, may also be added.  The liquid resin may be dried and ground to give a powder which when mixed with the water-insoluble resin can be reconstituted by mixing with water to give the above liquid adhesive.  The adhesives are used for making plywood.
Patent GB-649510-A (GB)
Title: Improvements in or relating to automatic control of the combustion of solid fuel in a travelling fuel bed
Filed: 1946-12-04
Abstract: 649,510. Automatic control systems for furnaces. EWBANK, C. H. P., and WILKINS, J. R. Dec. 4, 1946, No. 35930. [Class 38 (iv)] In a furnace control system, the temperature of a movable furnace bed is detected by a device at the leading end of the grate surface (i.e. where the fuel is normally completely burnt) and, either the rate of movement of the grate is varied inversely as the temperature at the detector, or the rate of air supply is controlled. In Fig. 4, the tube 2, which extends across the grate 1, at the leading end, and which is screened along its length so as to receive radiations from a limited length of the fuel bed, carries a stream of water, the temperature rise of which along the tube 2 is detected by the resistance thermometers 15. The latter control the adjusting system.
Patent GB-1081877-A (GB)
Title: Fuel cells
IPC: H01M8/08
Filed: 1964-09-03
Abstract: 1,081,877. Fuel cell. ESSO RESEARCH & ENGINEERING CO. Sept. 3, 1964 [Dec. 24, 1963], No. 36106/64. Heading H1B. The exhaust from a fuel cell having an aqueous electrolyte carries off more water than is produced and is therefore passed in heatexchange relationship with the incoming oxidant externally of the cell. The resultant moisture precipitated is fed back to the cell to maintain the water content of the electrolyte.