baber/WOPTO huggingface dataset:
Patent GB-1093585-A (GB)
Title: An installation for accelerating a stream of liquid working medium
IPC: H02K44/08
Filed: 1965-04-21
Abstract: 1,093,585. Devices for accelerating liquids. LICENTIA PATENT-VERWALTUNGS G. m. b. H. April 21, 1965 [April 25, 1964], No.16721/65. Heading F1R. In a device for accelerating a stream of normally liquid working medium, e.g. the liquid metal coolant of a nuclear reactor, for an M.H.D. generator, two partial streams m k  - m d  and m d  - m a  are divided from the stream m k  of working-medium before the latter enters a heat source 2, e.g. the nuclear reactor, the partial stream m k  - m d  being cooled in a heat exchanger 5 and the partial stream m d  - m a  heated by a cooled nozzle 6, and thereafter streams m k  - m d  and m d  - m a  are injected into the stream m a  after it has passed through the heat source and been evaporated. The stream m k  is decelerated in a diffuser 1 and divided into the partial streams. The evaporated stream ma is expanded through nozzles 3, 3', 3" and 6, and mixed with partial stream m d  - m a  at mixing points 4, 4' and 4". Condensation of the stream is effected by injecting the cooled partial stream m k  - m d  at zone 7.
Patent GB-575612-A (GB)
Title: Improvements in and relating to analytical compositions in tablet form
IPC: G01N31/22
Filed: 1942-11-25
Abstract: 575,612. Chemical testing. MILES LABORATORIES, INC. Nov. 25, 1942, No. 16740. Convention date, June 19. [Class 1 (i)] An analytical composition in tablet form for testing liquids contains solid caustic alkali in quantity more than sufficient to neutralize the acid content of the tablet, and to provide an alkaline solution on dissolution in water, and a compatible effervescent couple for generating carbon dioxide in the presence of water, and comprising a solid acidic element such as citric acid, tartaric acid and alkali metal, acid citrates or bisulphates, and a solid alkali metal carbonate, sesquicarbonate or bicarbonate. The carbon dioxide liberated when the tablet is added to water or aqueous fluids such as urine, cerebrospinal fluid, blood, ascitic fluid, milk and beer, causes disintegration and prevents the formation of a film by precipitation or coagulation of substances in the fluids such as albumin, mucin and phosphates due to the alkalinity or heat produced. A tablet for detecting reducing sugars in water solutions contains cupric sulphate, citric or tartaric acid or acid citrates, sodium or other alkali metal hydroxide and an effervescent couple composed, for example, of citric acid and sodium bicarbonate or tartaric acid and sodium carbonate. The caustic alkali is used for its heat of solution and reaction with the acid component which is in excess of that required for the effervescent couple. The temperature required for reduction of the copper is thereby produced as well as the necessary alkalinity. A tablet for detecting acetone contains salicylaldehyde-sodium bisulphite, sodium hydroxide, tartaric acid, and sodium carbonate. The caustic alkali content is determined by the amount of fluid and type of test.
Patent GB-349523-A (GB)
Title: Improvements in or relating to electrical heating apparatus
IPC: F24C15/10
Filed: 1930-02-27
Abstract: 349,523. Controlling consuming devices. CHURCH, G. T., Gogmore House, Gogmore Lane, Chertsey, Surrey. Feb. 27, 1930, No. 16788. Divided on 332,001. [Class 38 (iv).] A heating resistance A is connected at one end to one pole of an electric supply. Tappings are taken off along the element A to a set of contact studs B one of which is connected to an arcuate segment C<2>. Another resistance A<1> is connected at one end to the same pole of the supply as the element A and has a set of contact studs B<1>. A rotary switch arm connected to the other pole of the supply is arranged so that one end C slides on the studs B, B<1>, while the other end slides on the segment C<2>. Thus, starting with the arm C on the left-hand stud B<1> and rotating in an anticlockwise direction, the resistance A<1> is increased while the end part of the resistance A is maintained in parallel with it, through the segment C<2>. When the first stud B is reached the resistance A<1> is cut out and on further movement of the arm C, the resistance A is increased to a maximum. Three resistances and two segments may be similarly employed. Specification 332,001, [Class 5 (ii), Housing &c. animals], is referred to.
Patent GB-852596-A (GB)
Title: Organosiloxane compositions
Filed: 1958-05-27
Abstract: A composition suitable for rendering paper and paper products non-adherent to sticky or adhesive materials comprises an emulsion or solution containing (1) a mixture of (a) from 0,1% to less than 5,0% (by weight) of a methylhydrogensiloxane, trimethylsiloxy end blocked methylhydrogensiloxane or a mixture thereof, and (b) more than 95 to 99,9% of a hydroxylated methylpolysiloxane of the formula: <FORM:0852596/IV(a)/1> when x has a value of from 1,9 to 2,0 inclusive, having a viscosity of at least 100cs. at 25 DEG C and having at least 2 Si-OH groups in substantially all the molecules. (2) an aminoplast or phenol-aldehyde resin in amount such that the weight ratio of (1) to (2) is from 1 : 10 to 10 : 1, and (3) a siloxane curing catalyst, e.g. lead, zinc or ferric octoate, dibutyl tin di-laurate-octoate-acetate, or ferric or cobalt naphthenate.  The emulsions may be stabilised by adding thereto from 0,01 to 2% by weight of a carboxylic acid, preferably one which is volatile, e.g. formic, acetic, propionic, octanoic or 2-ethylhexoic acid. In examples the compositions consist of (1) an aqueous emulsion of a hydroxylated dimethyl polysiloxane, having a viscosity of 3,000 cs. at 25 DEG C., a trimethyl end-blocked methylhydrogen-polysiloxane, a watersoluble methylolated alkyl urea resin, zinc octoate and dibutyl tin diacetate, and (2) a heptane solution of the siloxane mixture of ex. (1), except that the hydroxylated siloxane has a viscosity of 107cs. at 25 DEG C, a phenol-formaldehyde resin and dibutyl tin dioctoate.  The compositions may also be used on organic plastic surfaces e.g. nylon, terephthalic alkylene glycol esters, regenerated cellulose and vinyl plastics.  Specifications 766,864 and 804,199 are referred to.
Patent GB-715715-A (GB)
Title: Azo dyestuffs of the stilbene series
IPC: C09B56/04
Filed: 1952-07-04
Abstract: The mixture of dischargeable and non-dischargeable dyestuffs obtained by condensing an aminoazo compound with 4 : 4\sv-dinitrostilbene-2 : 2\sv-disulphonic acid or 4 : 4\sv-dinitrodibenzyl-2 : 2\sv-disulphonic acid in alkaline solution is reduced to a mixture of the corresponding hydrazo-azo compounds, the latter separated on account of their different solubilities and the hydrazo-azo compound in the aqueous filtrate re-oxidized to the dischargeable dyestuff. In the initial condensation there are preferably used 1.6-2 mols of aminoazo compound per mol of dinitro compound, the latter being added at intervals and the reaction time extended to 20-30 hours, thereby increasing the proportion of the dischargeable component. For the reduction a mild reducing agent such as alkaline dextrose may be used; air is effective for re-oxidizing.  Examples show the treatment of the condensation products from 4 : 4\sv-dinitrostilbene-2 : 2\sv-disulphonic acid and 4-aminoazobenzene-4\sv-sulphonic acid, 4-aminoazobenzene-4\sv-carboxylic acid and 2-methyl-4-aminoazobenzene - 4\sv - sulphonic acid. Specifications 19807/07, [Class 2], 263,192, [Class 2 (iii)], and 403,007 are referred to.
Patent GB-299862-A (GB)
Title: Improvements in blasting explosive
IPC: C06B31/46
Filed: 1928-06-11
Abstract: 299,862. Hercules Powder Co., (Assignees of Stoops, B. I.). Nov. 4, 1927, [Convention date]. Explosives. - Relates to explosives especially intended for blasting coal and comprising a carbonaceous material, an explosive salt such as ammonium nitrate or perchlorate, an oxidizing salt such as sodium or potassium nitrate, and a sensitizer such as nitroglycerine or nitropolyglycerine, and consists mainly in impregnating a low density carbonaceous material such as sawdust of balsa wood or bongo wood with an explosive salt or another salt, so that the salt is supported in intracellular relation with respect to the carbonaceous material before admixture with the other ingredients. The impregnation is preferably accomplished by first mixing the explosive salt with a salt containing water of crystallization, such as magnesium nitrate, calcium nitrate, ferric nitrate, or aluminium nitrate, and heating the mixture to release the water of crystallization. The carbonaceous material is then impregnated with the melt, and on cooling the water of crystallization returns to the salt. The amount of salt impregnated into the carbonaceous material must be sufficient to prevent it. absorbing the sensitizer to such an extent that the explosive will become insensitive. By this process over 425 cartridges of 31.75 x 203.20 mm. may be made from 45.4 kilograms of materials, and this low density of charge causes the explosion to have a rending effect, like that of black powder, which is important in the blasting of coal, rather than a shattering effect, like that of ordinary ammonium nitrate explosives.
Patent GB-169024-A (GB)
Title: Improvements in retaining devices for corks and stoppers
IPC: B65D55/06
Filed: 1920-06-23
Abstract: 169,024. Paton, Sir J. W. June 23, 1920. Stoppers secured by cords and like detachable devices.-A retaining-device for bottle-stoppers &c. comprises a strap or band member embracing the neck of the bottle, a canvas tape or the like permanently secured at one end to the band member and passing over the top of the stopper, and a cord or other means for detachably securing under tension the free end of the tape to the opposite side of the band member. Two bent metal strips 2 embracing the neck 3 of a bottle have flattened ends 5, 6 forming flanges. An eyelet 7 permanently fastens the ends 5 together and to a canvas tape 8 passing over the cork 13 and secured by a cord 10 to an eyelet 11 in the other ends 6, which are secured by 'a clip 12 on one of them. The band 2 may be made from a single strip bent round the neck and may be secured where its ends meet by a lip on one of them bent over to grip the other.
Patent GB-891613-A (GB)
Title: Improvements relating to driving systems
IPC: F16H61/64
Filed: 1959-05-19
Abstract: 891,613. Regulating. VOITH G.m.b.H., J. M. May 19, 1959 [June 27, 1958], No. 17022/59. Class 7(6). [Also in Groups XXIX and XXXI] A driving system for a rail vehicle comprises a prime mover 10, Fig. 1, a turbo converter 14, and control means whereby for small output speeds the prime mover is maintained at a constant low speed and the inlet pressure or degree of filling of the turbo converter is varied, and for higher output speeds the output speed of the prime mover is varied. The prime mover, which may be a diesel engine, is connected by gears 11 to the impeller 13 of the converter, the runner 15 of which is connected to the output shaft 16 driving the wheels of the vehicle. A pump 20 driven from the impeller shaft 12 supplies fluid to a valve 22 controlling the filling and pressure of fluid in the converter. The valve consists of a cylinder having ports 28, Fig. 2, elongated in the direction of movement of a spool 26 which is spring-urged upwardly so that a cam follower 36 on a rod 32 secured to the spool engages a cam 35 movable by a lever 34 under the control of the driver. The lever is connected by a rod 37 having a lost-motion connection 39 to a rod 38 controlling the output of the prime mover. In the O position of the lever, the engine is stationery and the converter empty. Movement of the lever sequentially starts the prime mover which runs at idling speed and adjusts the valve 22 to fill the converter in steps and thereafter pressurise the fluid so that the system may be used at various small output speeds for shunting purposes. Further movement of the lever when the lost motion has been taken up in the connection 39 progressively increases the speed of the prime mover. The pressure in the converter at the higher output speed may be varied in accordance with the vehicle speed by a metering pump 50, Fig. 9, which is driven from the vehicle wheels and supplies fluid to a piston- and-cylinder device 54 connected to a cam 56 which when moved by pressure from the pump 50, moves the spool of the valve 22 to vary the excess pressure in the converter. In a similar arrangement, the filling and pressure in the converter may be varied to avoid skidding by connecting the metering pump to a piston-and-cylinder device interposed between the cam follower 36 and the spool 26 of the valve.
Patent GB-201710-A (GB)
Title: Improvements in or connected with folding tables
Filed: 1922-06-21
Abstract: 201,710. Radcliffe, A. June 21, 1922. Folding and collapsable tables.-A table with legs adapted to fold against the underside of the top comprises four stationary frame rails h each of which abuts at one end against another four legs A each pivotally connected to the projecting end of one of the rails at the outer side, a screw-threaded pin f on each stay projecting through and forming a sliding fit with a slot g in the corresponding rail, and a winged screw nut k on each pin to clamp the rail between it and the corresponding stay. Parts of reduced thickness are formed on the frame rails to accommodate the stays when the legs are folded. When the legs are fully unfolded, the pins k abut against one end of each slot g in each rail.
Patent GB-273336-A (GB)
Title: Improvements in and relating to marine boilers
IPC: F22B11/00
Filed: 1927-06-27
Abstract: 273,336. Schmidt'sche Heissdampf- Ges, June 26, 1926, [Convention date]. Compound boilers; heating by indirect contact of steam.-A compound boiler comprises a lowpressure boiler 1 of the return-tube type and a high-pressure boiler 14 indirectly heated by the circulation of steam generated in tubes 17, 17<a> arranged partly in front of the combustion chamber 23 of the low-pressure boiler and partly in the combustion chamber. The tubes 17 form the side, front and top walls of the firebox of the low-pressure boiler and also a middle wall 18 dividing the firebox longitudinally. The tubes 17<a> are placed in front of a high-pressure steam superheater 24 arranged in the combustion chamber and forming part of its upper rear wall. The low pressure steam is superheated in a fire-tube superheater 6 and in a superheater 25 in the combustion chamber. A pump 31 supplies water from the low-pressure boiler to the high-pressure boiler. The drum of the low-pressure boiler is supported by bands 8 hinged to hollow columns 10, through which heated air is supplied to the furnace from a heater 5. In a modification, the water-tube firebox is placed in front of and opens into the flue tube of the 'return-tube boiler.
Patent GB-416154-A (GB)
Title: Improvements in or relating to colouring rubber surfaces
IPC: B29C37/00
Filed: 1933-06-16
Abstract: Articles of or containing rubber such as play balls, are coloured to a substantial depth of surface by a process which comprises first halogenating the rubber surface, and then staining it with an organic dye in solution in water or in an organic solvent.  The halogenation of the surface is preferably carried out as described in Specifications 403,726, 410,436, or 415,195. The halogen may be employed in gas or liquid form, or in solution in a solvent.  The surface is preferably pre-treated with an organic solvent or with water to increase the uniformity of condition in readiness for the application of the halogen. Suitable dyes are: benzeneazo - betanaphthol, benzeneazobenzeneazo-betanaphthol and eosin.
Patent GB-811985-A (GB)
Title: Improvements in or relating to refractory material
Inventor: AUSTIN LESLIE WENTWORTH
IPC: C04B35/42
Filed: 1956-06-04
Abstract: A non-fused crystalline refractory material consists essentially of agglomerated intergrown crystals of periclase and magnesia spinels of iron oxide and alumina, in amounts calculated as 10 to 90 per cent. of periclase, 5 to 85 per cent. of magnesioferrite and 5 to 85 per cent. of magnesium aluminate and containing not more than 2,0 per cent. of lime; the material preferably contains not more than 5 per cent. silica, 1 per cent. boron calculated as B2O3, and 1 per cent. of alkali calculated as the oxide; a minor amount of the magnesium, iron and aluminium oxides in the spinels may be replaced by other spinel-forming metal oxides.  Finely divided mill scale and bauxite, or alternatively laterite alone, in amounts calculated as 5 to 85 per cent. of magnesioferrite and of magnesium aluminate are intimately admitted with precipitated magnesium hydroxide in an amount sufficient to react with all of the iron oxide and alumina to form magnesia spinels and to provide from 10 to 90 per cent. of excess periclase and the admixture is fired at 1600 DEG  to 1800 DEG C. for at least one-half hour.  In an alternative procedure, the iron oxide material and the alumina material are first admixed in amounts to provide 94 to 40 per cent. calculated as FeO, of the iron oxide-providing material and 6 to 60 per cent., calculated as Al2O3, of the alumina-providing material; the admixture so heated to cause at least partial reaction to form a product containing iron aluminate which is then admixed with the periclase material and fired. According to an example, 16,7 lb. Bayer process aluminium hydroxide and 10,9 lb. of a technical grade powdered ferric oxide were intimately blended with 736 lb. of a slurry of magnesium hydroxide containing 33 per cent. MgO. The resultant slurry was dried, briquetted and fired to 1700 DEG C. for one-half hour.  Reference is made to the related matter of Specifications 811,986 and 811,987.
Patent GB-661731-A (GB)
Title: Improvements in or relating to tufting machines
IPC: D05C15/00
Filed: 1949-06-29
Abstract: 661,731. Sewing machines. JOHNSTON, T. W. May 12, 1950 [June 29, 1949], No. 17222/ 49. Drawings to Specification. Class 112. Tufting machines. In a tufting device in or for a sewing-machine, of the type in which loops of yarn are passed through textile material to be held by a reciprocating looper and are cut by a knife blade restrained from following the reciprocating movements of the looper, the knife is mounted so as to be urged against the looper by resilient means, to take up wear. The embodiments described are modifications of the device described in Specification 615,944. In one form the plate carrying the knife blade is made slightly flexible and one or each of its securing screws has a spring washer, to take the reaction of an adjusting screw screwed into the plate and pressing on the blade. In other forms the screw is carried by a bridge piece spring-pressed towards the blade, or a spring may bear directly on the blade.
Patent GB-406179-A (GB)
Title: Process of manufacturing multicellular glass
IPC: C03C11/00
Filed: 1933-06-16
Abstract: 406,179. Nonconducting coverings for heat and sound. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, ET CIREY, 1<bis>, place des Saussaies, Paris. June 16, 1933, No. 17235. Convention date, June 22, 1932. [Class 64 (ii).] Spongy or multicellular glass, suitable for the insulation of heat and sound, is made by melting vitrifiable materials containing boric acid or a borate and a carbonaceous substance, and bringing the mass thus melted to a temperature adjacent its softening point. The formation of bubbles in the glass produces a spongy mass with closed cells. Examples of suitable batch mixtures are given in the Specification.
Patent GB-379025-A (GB)
Title: Improvements in or relating to tanks for containing electrical apparatus immersed inoil or other insulating liquids
IPC: H01F27/14
Filed: 1931-06-13
Abstract: 379,025. Transformers &c. ELLIS, A. G., Felthorpe, The Firs, Bowdon, Cheshire, HANSALL, J. B., 121, Eccles Old Road, Pendleton, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. June 13, 1931, No. 17244. [Class 38 (ii).] Tanks for oil-immersed electrical apparatus such as transformers are provided with a cover 4 of such shape as to provide an air or gas space to accommodate expansion of the oil whilst the joint 5 between the cover and the tank body lies below the lowest oil level. A receptacle 7 communicating with the space above the oil level by a pipe 8 may be provided in the bottom of the tank to afford additional expansion space. A gas-absorbent substance such as charcoal may also be provided for this purpose. A spaced liner or false cover may be provided within the cover proper to form an annular receptacle for oil, Fig. 2 (not shown).
Patent GB-556409-A (GB)
Title: Improvements in or relating to the casting of metals
IPC: B22C9/08
Filed: 1942-12-04
Abstract: 556,409. Moulds. QUALCAST, Ltd., and JOBSON, J. E. V. Dec. 4, 1942, No. 17252. [Class 83 (i)] To avoid spilled metal &c. from falling through the riser f of a mould a into the mould-cavity b, the riser is formed with a trap or well e.
Patent GB-711009-A (GB)
Title: Electric transformers with pressure resisting casings
IPC: H01F27/22
Filed: 1952-07-09
Abstract: 711,009. Transformers. LICENTIA PATENT-VERWALTUNGS-GES. July 9, 1952 [July 27, 1951], No. 17321/52. Class 38(2) A dry, self-cooled electric transformer assembly comprises core limbs 4 which have an elongated rectangular cross-section and which are arranged in one row so that the short sides of two adjacent limbs face each other, windings 5 which closely surround the core limbs, two walls 3 so arranged that each closely faces the longer sides of the windings and a frame 1 which is arranged between the two walls to surround the transformer structure and is tightly connected to the lateral walls. The ratio of the shorter to the longer 'sides of the crosssection of the core limbs 4 is preferably between 1:2 and 1:2.5. Between the windings 5 and the walls 3 which normally exert a pressure on the windings layers 7 of mica may be inserted also if required an asbestos layer. The lead-in conductors 6 may occupy the wedge-like spaces between the windings 5 and any spaces which may exist in the assembly filled with quartz sand. Terminal boxes 8 are provided at the ends of the assembly, and the walls 3 provided with cooling ribs 2.
Patent GB-150493-A (GB)
Title: Improvements in reamering or the like tools for metal working
IPC: B23B29/034
Filed: 1919-07-11
Abstract: 150,493. Barnes, J. W. July 11, 1919. Reamers; cutter-bars.-In a reamer or like tool a sleeve 3 is fitted on a reduced end of a rod 1 and a double-ended cutter 5 passes transversely across the rod and through slots in the sleeve, the cutter and sleeve being secured to the rod by a pin 4. Grooves 7 in the sleeve and grooves 8 in the rod are provided for lubrication and for the escape of cuttings. In a modification, Fig. 3, the sleeve is enlarged to receive a block 10 which is keyed to the rod 1 and is slotted to receive the cutters 11, which are adjustably secured therein.