baber/WOPTO huggingface dataset:
Patent GB-1026222-A (GB)
Title: Hollow turbine blades
Inventor: KEEGAN BARCLAY
IPC: F01D5/14
Filed: 1964-01-23
Abstract: Turbine blades may be made from billets consisting of (1), 13.5-16% chromium, 18-22% cobalt, 4.5-5.5% molybdenum, 0.9-1.5% titanium, 4.2-4.8% aluminium, 0.2% max carbon, remainder nickel; (2), 0.1% max carbon, 11-19% molybdenum, 6-9% titanium + aluminium, 1-30% cobalt, 0.01-0.1% zirconium, 0.001-0.01% boron, remainder essentially all nickel; (3) 10-15% tungsten, 4-8% molybdenum, 3-6% titanium, 1-3% zirconium, remainder essentially all niobium.
Patent GB-737739-A (GB)
Title: Improvements in or relating to dehydrating hydrazine solutions
IPC: C25B9/14
Filed: 1952-02-06
Abstract: Aqueous hydrazine solutions are dehydrated by injecting a mixture of adehydrating agent, e.g. sodium or potassium hydroxide, or calcium or barium oxide, in water into a vessel in which it is distributed and flows downwardly counter-current to vapours of the hydrazine solution, and collecting the dehydrated hydrazine vapours at the top of the vessel, the dehydrating agent-water mixture at the time of injection containing more than 1 mol. of dehydrating agent for <PICT:0737739/III/1> each mol. of water.  25-64 per cent hydrazine solution is passed into packed column 2 through spray 3.  Caustic soda solution, preferably saturated with hydrazine, is passed through spray 4 and contains 1 mol. NaOH for each mol. water in the combined solutions.  The combined solutions pass to boiler 5, maintained at say 75 DEG  C. and 120 mm., whence hydrazine-water vapours distil and are passed through column 2 countercurrent to the streams of solutions.  Between sprays 3, 4 the vapours contact the caustic soda solution only and water vapour is removed.  The vapours pass from column 2 to condenser 6.  Part of the mixed solution is removed by pump from boiler 5 and passed to heated jacketed vessel 8 where fresh NaOH from 9 is added through column 10, where it is dearated by nitrogen.  The resulting caustic soda solution saturated with hydrazine is returned to spray 4.  Some of the mixed solution is also withdrawn from 5 to stripper 13 at 110-140 DEG  C. and further hydrazine-water vapours are evolved, which are also passed to column 2.  Caustic soda monohydrate solution remains in stripper 13.  The region of column 2 above spray 4 may be used for refluxing condensed hydrazine by passing a portion of the condensate flowing to receiver 16 through spray 14.  The column 2, boiler 5, stripper 13, condensate 6 and receiver 16 are operated under a subatmospheric pressure sufficient to effect distillation of hydrazine at 60-80 DEG  C., while vessel 8 is at atmospheric pressure.  The amount of dehydration may be varied by the amount of caustic soda added to the solution in 8 and substantially anhydrous hydrazine may be obtained. Specification 695,264 is referred to.
Patent GB-1162723-A (GB)
Title: Polymerisable Paint Binders
IPC: C08G18/67
Filed: 1966-08-09
Abstract: 1,162,723. Polymerizable paint binders and components thereof. FORD MOTOR CO. Ltd. 9 Aug., 1966 [13 Aug., 1965], No. 3286/69. Divided out of 1,162,721. Heading C3P. Novel paint binders comprise a film-forming solution of a urethane-modified organic resin in one or more liquid vinyl monomers copolymerizable with the resin by ionizing radiation, the resin having a molecular weight in excess of about 1000 and 0.5-3 vinyl unsaturation units, introduced by the urethane modification, per 1000 of molecular weight and being an addition reaction product of a C 3 -C 12  hydroxylcontaining vinyl monomer (e.g. 2-hydroxyethyl methacrylate), a diisocyanate monomer (e.g. tolylene or hexamethylene diisocyanate) and an acrylic or modified acrylic starting resin having a plurality of hydrogen atoms labile with respect to an isocyanate group (e.g. a methyl methacrylate - ethyl acrylate - 2 - hydroxyethyl methacrylate copolymer obtained by polymerizing the corresponding monomers in xylene in the presence of benzoyl peroxide). The binder may additionally contain a pigment and/or filler. The binders can be polymerized in situ on a substrate by application of ionizing radiation to form wear- and weather-resistant coatings; this aspect forms part of the subject of Specification 1,162,721.
Patent GB-883607-A (GB)
Title: Improvements relating to travelling alarm clocks
Inventor: GRAEF WALTER
IPC: G04B23/03
Filed: 1960-01-29
Abstract: 883,607. Alarm clocks. JAHRESUHRENFABRIK G.m.b.H. A., SCHATZ & SOHNE. Jan. 29, 1960, No. 3346/60. Class 139. In a travelling alarm clock the clock frame 1 is hinged to the casing top 3 and is retained in the operative position by a spring loaded catch 4 in the bottom 2. The alarm locking lever 5 lies adjacent the upper end of the catch 4 or some other projection so that the alarm may be disabled by exerting a downward finger pressure on the top of the casing as shown. The clock 1 may be hinged to the bottom 2 and the latch 4 located in the top 3 of the casing.
Patent GB-1493033-A (GB)
Title: Brazing method
IPC: B23K31/02
Filed: 1975-01-27
Abstract: 1493033 Welding by pressure; brazing UNITED AIRCRAFT PRODUCTS Inc 27 Jan 1975 [1 Aug 1974] 3423/75 Heading B3R Brazing alloy is joined to a part to be brazed by applying solid brazing alloy to the part under pressure and heating to a temperature below the melting point of either the part or the alloy for a time sufficient to effect solid state diffusion of constituents of the brazing alloy into the metal of the part. As shown a heat exchanger header plate 11 flanged at its periphery is provided with cleaned sheets 15, 16 of brazing alloy and the assembly is heated, while under pressure in a vacuum furnace, to a temperature just below the melting point of the brazing alloy to effect the solid state diffusion bonding of the sheets to the plate. Holes to receive tubes are then drilled, the tubes 14 are arranged in the holes and the assembly is heated to melt the brazing alloy and cause liquid diffusion, fillets 17 bonding the tubes to the plate 10. The plate may be of an aluminium alloy and the brazing alloy of a different aluminium alloy of lower melting point. To increase the speed of diffusion and reduce the joining time magnesium may be incorporated into the brazing alloy or as fragments or chips may be placed with the brazing alloy and plate to be diffusion bonded when small areas of liquid diffusion take place between the alloy and the plate. The added material volatilizes and is made to be present between the brazing alloy and plate.
Patent GB-307591-A (GB)
Title: Process of and apparatus for treating tea in course of manufacture
IPC: A23F3/06
Filed: 1928-02-06
Abstract: 307,591. Chaliha, J. P. Feb. 6, 1928. Tea manufacture. - Tea is fired or treated preparatory to withering in a chamber under reduced pressure at a temperature of 160‹-210‹ F., e.g. at 180‹ F. or at 200‹ F. under 15 or 23.5 inches of mercury pressure respectively and fermented in a cool moist draught. The air and moisture are sucked out by a pump connected by tubes 6, 7 to the chamber, which is jacketed on four sides and has two opposite air-tight non- jacket doors. Water is circulated through the jacket and through pipes 8 in the chamber. The tea is also fermented in the chamber, cold water being circulated in the jacket. Water is also placed in open receptacles 10 arranged 1 inch below trays carrying tea in the chamber, and with the vacuum pump a cool moist draught is obtained, the doors being open. The tea is placed 1 inch deep in trays T1 - - T6 of perforated metal, wire netting or hessian cloth, resting on ledges 9 perforated to allow air circulation. Mechanical tea spreaders and stirrers may be used.
Patent GB-396717-A (GB)
Title: Improvements in the manufacture and production of cobalt nitrosocarbonyl
IPC: C01G51/00
Filed: 1932-02-08
Abstract: Cobalt nitrosocarbonyl and/or cobalt nitrosyl are obtained by acting with nitric oxide, if necessary together with carbon monoxide, upon metallic cobalt or a material containing cobalt in the metallic state or in a state from which it can be reduced to metallic cobalt by the reducing gases present, such as excess of carbon monoxide.  The gas mixture may also contain inert gases such as nitrogen.  When cobalt nitrosocarbonyl is being produced the nitric oxide may be wholly or in part replaced by substances supplying it such as nitrates or liquid solutions of nitric oxide. Normal, increased or reduced pressure may be employed with room temperature or elevated temperatures not exceeding 250 DEG  C.  Ores or waste products containing a small amount of cobalt may be converted into the nitroso compounds; the conversion may be preceded by pretreatment such as roasting, conversion into oxides, loosening in order to increase superficial area or reduction to the metallic state.  Substances such as copper which facilitate the production of the nitroso compounds may be added. The nitroso compounds may be burnt, or thermally decomposed in the presence of inert gases, to form cobalt oxide, thermally decomposed in the presence of reducing gases such as hydrogen to form metallic cobalt or treated with strong mineral acids to form cobalt salts.  According to examples, (1) a precipitate obtained by adding lime to a solution of cobalt sulphate is reduced with hydrogen at 350 DEG  C. and then treated with carbon monoxide containing 1 per cent nitric oxide at 60-70 DEG  C. and atmospheric pressure to produce cobalt nitroso carbonyl; (2) cobalt nitrate is evaporated to dryness with lime and the resulting mass is treated with flowing carbon monoxide at 240 DEG  C. and 200 atmospheres pressure to produce cobalt nitroso carbonyl; (3) an industrial waste containing calcium sulphate and oxides of iron, copper and cobalt is dried, reduced by hydrogen at 380 DEG  C. and treated with carbon monoxide containing 5 per cent nitric oxide at 160-180 DEG  C. to produce cobalt nitroso carbonyl; (4) a reduced material prepared as in the preceding example is treated at atmospheric pressure and 150 DEG  C. with carbon monoxide containing 10 per cent nitric oxide to produce a mixture of cobalt nitroso carbonyl with cobalt nitrosyl; (5) a reduced material prepared as in example (3) is treated at atmospheric pressure and 150-180 DEG  C. with a mixture of nitrogen and nitric oxide to produce cobalt nitrosyl.  The Provisional Specifications describe also the employment of nitrogen oxides in general in the process.ALSO:Cobalt nitrosocarbonyl and/or cobalt nitrosyl, obtained by the action of nitric oxide together if necessary with carbon monoxide upon metallic cobalt or materials capable of yielding metallic cobalt, may be thermally decomposed in the presence of reducing gases such as hydrogen to produce metallic cobalt.
Patent GB-192614-A (GB)
Title: Improvements relating to electric switches
IPC: H01H15/18
Filed: 1922-02-08
Abstract: 192,614. Berry, H. H., and Berry's Electric, Ltd. Feb. 8, 1922. Switches, quick-action; bases.-A switch has a hinged cover b through which a. stem d connected to a handle c can be moved in sliding fashion, the stem d carrying contacts controlled by quickaction springs k of which the compression can be adjusted. For this purpose, the springs are mounted on bars h, having a sliding movement in brackets j, and adjustable by a screw-connection g with rods f pivoted to a carrier e fixed to the stem. In a modification shown in Fig. 4, the stem l carries a tube m in which the spring n is compressed by plungers o, pivoted to threaded bars p which are adjustable in tubes q having a ball and socket connection with lugs on the cover.
Patent GB-907787-A (GB)
Title: Improvements in or relating to the brightening of aluminium
Inventor: WATKINS NORRIS RUPERT
IPC: C23F3/03
Filed: 1959-02-04
Abstract: Aluminium is brightened in a composition comprising, by weight, 27-40% sulphuric acid, 14-25% nitric acid, and a polybasic oxy-acid of phosphorus in an amount of 36-58% calculated as orthophosphoric acid on a phosphorus pentoxide basis, the weight ratio of the polybasic acid (as so calculated) to the sulphuric acid being less than 1.75 : 1.  For the brightening of commercial grades of aluminium, the composition should also contain a smoothing agent, e.g. a sugar, hydrogen peroxide, or one or more of a boron-containing acid, hydrochloric acid, and a compound providing ions of titanium or vanadium and/or ions of a dibasic organic acid.  The polybasic oxy-acid of phosphorus is orthophosphoric acid.  After brightening, the aluminium may be anodized in sulphuric or chromic acid.
Patent GB-433045-A (GB)
Title: Manufacture of derivatives of 2-phenyl-quinoline-4-carboxylic acids
Filed: 1934-02-06
Abstract: Esters of 2-phenylquinoline-4-carboxylic acid, its homologues and substitution products are prepared by esterifying the acids with glycerol or halohydrins of glycerol.  When the products contain halogen, they may be reacted with a further quantity of the acids or their salts.  The products may be used therapeutically.  According to the examples, (1) the a -monoglycerol ester of 2-phenylquinoline-4-carboxylic acid is prepared by heating the acid with glycerol in the presence of sulphuric acid, or by treating the acid chloride with glycerol or the potassium salt with a -monochlorhydrin; the glycerol esters of 2-phenyl-6-methoxy-quinoline-4-carboxylic acid and 2-p-tolyl-quinoline - 4 - carboxylic acid are prepared similarly; (2) a a <1>-bis-(2 - phenylquinoline-4-carboxylic acid)-glycerol ester is obtained by reacting potassium 2 - phenylquinoline - 4 - carboxylate with a -dichlorhydrin or with 2-phenylquinoline - 4 - carboxylic acid - ( -g  chlorpropandiol)-a -ester, or by heating 2 mols. of the acid chloride with 1 mol. of glycerol; the a a <1>-bis-glycerol esters of the 6-methoxy and 2-p-tolyl acids are similarly prepared; the a b -bis-(2-phenylquinoline-4-carboxylic acid)-glycerol results when b -dichlorhydrin is employed; (3) a b g  - tri - (2 - phenylquinoline - 4 - carboxylic acid)-glycerol ester is formed when potassium 2-phenylquinoline-4-carboxylate is heated with 2 - phenylquinoline - 4 - carboxylic acid - b b <1>-dichlorisopropyl ester; (4) 2-phenylquinoline-4-carboxylic acid chloride when heated with a -monochlorhydrin gives 2-phenylquinoline-4-carboxylic acid-g -chlorpropandiol-a  ester, and with a -dichlorhydrin yields 2-phenylquinoline 4-carboxylic acid - b b <1> - dichlorisopropyl ester; the 2-p-tolylquinoline-4-carboxylic acid-b b <1>-dichlorisopropyl ester is similarly prepared; a b  - bis - (2 - phenylquinoline - 4 - carboxylic acid)-g -chlorpropandiol ester results from the interaction of 1 mol. of a -monochlorhydrin on 2 mols. of the acid chloride.
Patent GB-1075229-A (GB)
Title: Improvements relating to action linkage mechanisms and chairs incorporating same
IPC: A47C1/034
Filed: 1966-01-28
Abstract: 1,075,229. Seats. GREAVES & THOMAS Ltd. and W. R. COBB. Jan. 28, 1966, No. 3950/66. Heading A4J. In a reclining chair, one, 8, of two seat supporting links 8, 18, is formed as a control link for a foot-rest mounting member 13 and rotates, about stationary pivot 7 to extend member 13, as the seat and back unit 30, 31 is moved from the upright position (Fig. 1, not shown) to the semireclined position. In the stowed position, the foot rest is inverted beneath seat 30 and it is held back, by link 14, until pivot 12 is raised sufficiently to allow it to be swung without its tip striking the floor. Link 35 retains flap 34 over the front of the frame, in the upright position of the chair. The chair is arranged to be in a stable state in any position of adjustment between the semi- and fullyreclined (Fig. 3, not shown), in which member 6 rises about pivot 5 to the extent of links 22, 23. Friction joint 33 provides additional control of this movement. A simplified form eliminates intermediate mounting member 6 and the fully-reclined position. A form in which the seat and back rest are pivoted to one another is referred to.
Patent GB-589155-A (GB)
Title: Improvements in and relating to hydraulic check floor springs
IPC: E05F3/10
Filed: 1945-02-16
Abstract: 589,155. Door closers. EDSON, A. D., and TULL, L. S. Feb. 16, 1945, No. 4001. [Class 65 (i)] A cam on spindle 8 moving with a swing door acts upon a crosshead 13 against the action of springs 14. The piston rod 21 of a dashpot 19 is pivotally connected to an arm on the spindle 8.
Patent GB-712619-A (GB)
Title: Improvements relating to endless conveyors for dealing continuously with materials in bulk
IPC: B65G17/02
Filed: 1951-02-19
Abstract: 712,619. Endless belt conveyers. MITCHELL, F. G. Jan. 3, 1952 [Feb. 19. 1951], No. 4024/51. Class 78(1) In an endless conveyer of the type comprising an endless chain 10 of wheeled carriages articulated to one another, and an endless belt 12 adapted to provide the carrier surface for the material being conveyed and for the greater part of its length, to be supported by and travel with the carriage chains at the ends of the conveyer the belt is carried beyond the ends of the chain and turned without lateral deflection from upper to lower run and vice-versa and the chain is turned from forward to return run and vice-versa by being guided laterally on to and round a curved track 11 which is substantially semi-circular, the track being so offset laterally to one side of the main longitudinal runs of the chain, as to allow the belt on its return run to enter the gap between the upper and lower runs of the chain and be supported by the lower run of the chain. The track 11 may consist of a drum or a series of idle rollers. Each carriage comprises a frame 22 supported at one end by wheels 24 running on tracks 30, 31 and a link 25 pivotally mounted on the wheel axle 23 and provided with a coupling piece 26 for attachment by a vertical pivot of the extension 27 of an adjacent carriage The upper run of the belt is supported in trough formation by cross pilates 32 mounted on bearers 33 on the carriage, whilst the return run is supported directly by the axles 23 and the underside of the frames. Alternatively, plates 32 may also be provided on both sides of the frames. The carriage chain is propelled by devices comprising dogs 36 on chains 35 engaging the axles 23. The device may be located at the delivery end of the conveyer or in the case of a long conveyer at a number of positions along its length. Idlers 13 which retain the troughed form of the loaded belt after it has left the carriage chain are so arranged that the trough becomes shallower as it approaches its delivery end to permit the belt to lie flat against the periphery of the guide roller 14. Specification 588,450 is referred to.
Patent GB-373127-A (GB)
Title: Improved manufacture of anthraquinone derivatives
IPC: C07C309/53
Filed: 1931-02-09
Abstract: Anthraquinone derivatives.--1-chloranthraquinone-6- and 7-sulphonic acids are made by sulphonating 1 - chloranthraquinone in the absence of a catalyst with 20 per cent oleum at 155-160 DEG  C., and separating the products in the form of their sodium salts by fractional crystallization.  By sulphonating in the presence of a mercury catalyst, e.g. mercuric oxide, a mixture of 1-chloranthraquinone-5-sulphonic acid and 1-chloranthraquinone-4 : 5-disulphonic acids is obtained: the acids are separated as sodium salts by fractional crystallization.  By sulphonating the 5- and 7-monosulphonic acids in the absence of a catalyst, and in the case of the 6-acid, separating the products by fractional crystallization, 1-chloranthraquinone-4 : 6-, -2 : 6- and -2 : 7-disulphonic acids are obtained.  The sulphonic acids may be converted into the corresponding di-and tri-chloranthraquinones by treating with a substance yielding chlorine (e.g. potassium chlorate and hydrochloric acid).  The chlorine atoms in the mono- or di-sulphonic acids may also be replaced by amino or substituted amino groups by treating them with ammonia or with a primary or secondary aliphatic amine, in the presence of a copper catalyst, e.g. copper sulphate.  Examples are given of the preparation of (1) the mono- and di-sulphonic acids from 1-chloranthraquinone, (2) of 1 : 6-dichloranthraquinone from 1-chloranthraquinone-6-sulphonic acid; the 1 : 5- and 1 : 7-dichlor-and the 1 : 2 : 6-, 1 : 4 : 6-, 1 : 2 : 7-, and 1 : 4 : 5-trichlor-anthraquinones are also described, and (3) of 1-aminoanthraquinone-6-sulphonic acid, 1-diethylaminoanthraquinone-6-sulphonic acid, 1-aminoanthraquinone-4 : 6-di-sulphonic acid and 1-diethylaminoanthraquinone-4 : 6-disulphonic acid from 1-chloranthraquinone-6-sulphonic acid or -4 : 6-di-sulphonic acid and ammonia or diethylamine.  The products are either dyestuffs or dyestuff intermediates.  Specification 544/10, [Class 2 (iii), Dyes &c.], is referred to.  Monoazo dyes.--According to one of the Provisional Specifications, the above aminoanthraquinone-sulphonic acids may be di-azotized and coupled with b -naphthol.
Patent GB-793393-A (GB)
Title: Improvements relating to activation of clay by acid treatment and calcination
IPC: B01J21/16
Filed: 1956-02-09
Abstract: Kaolin is modified for use as a contact mass by mixing raw clay with sulphuric acid and calcining, preferably after ageing, without any washing treatment.  The masses may be shaped with up to 60 per cent by weight of water prior to calcining to form particles suitable for fluidized reactions, i.e. 20-150 m , and inert fillers such as wood flour or activated carbon may be added prior to shaping.  Preferably clay is mixed with a dosage of 60-125 per cent concentrated sulphuric acid, preferably 90-100 per cent, is aged at 220-325 DEG  F. for 6 to 300 hours and then is calcined at 1450-1800 DEG  F. for 3 to 24 hours.
Patent GB-438953-A (GB)
Title: An improved method of constructing reinforced concrete floor, ceiling and like slabs
IPC: E04B5/23
Filed: 1935-02-07
Abstract: 438,953. Floors. COLE, A., 311, Green Lane, Great Lever, Bolton. Feb. 7, 1935, No. 4103. [Class 20 (iv)] A floor or the like consists of pre-cast reinforced-concrete units 1 of tubular section spanning between the points of permanent support of the floor and having separate slips or spacing pieces 4 supported from the units in such a manner that they project below the underside of the units and form the bottoms of a series of troughs 6 between the units when the latter are placed side by side, such troughs being adapted to receive concrete or grouting material. The slips 4 may be supported from flanges 2 of the units as shown in Fig. A by means of cleats 5 provided on the slips, or they may be supported from the units 1 by means of Z-shaped hangers 10 as shown in Fig. B. A ceiling 8 is adapted to be attached to the underside of the slips 4. A reinforcement 7 may be provided for the concrete in the troughs.
Patent GB-1523954-A (GB)
Title: Apparatus for treating textiles
IPC: D06B3/20
Filed: 1977-02-25
Abstract: 1523954 Liq. treatment of fabrics NEIL & SPENCER Ltd 25 Feb 1977 [3 Feb 1976] 04104/76 Heading D1L Apparatus for the liq. treatment of fabrics of the type disclosed in Specifications 1433352 and 1302595 is modified by the provision of a feeler mechanism 60 at the outlet end of the duct I which detects the extent of the plaited portion of the fabric in the duct, the feeler controlling the speed of the input roller 1 so as to maintain the degree of plaiting at a desired variable value. The feeler is constituted by a swinging arm 62 pivoted at 64, the inner end of the arm has a component 70 the position of which is sensed by sensors 68A-E. In operation, the feeler is set to operate with the component 70 opposite one of the sensors 68B-D, the speed of the roller 1 being altered whenever the component moves away from the selected sensor.
Patent GB-356642-A (GB)
Title: An improved frog for violoncello-bows
IPC: G10D3/16
Filed: 1931-02-10
Abstract: 356,642. 'Cello bows. BALLIO, A., 2, Heugasse, Heidelberg, Germany. Feb. 10, 1931, No. 4134. Convention date, Feb. 10, 1930. [Class 88 (ii).] The frog of a 'cello bow is extended at x and cut away as shown, to receive all the fingers.