baber/WOPTO huggingface dataset:
Patent GB-1056403-A (GB)
Title: Improvements in or relating to apparatus for reproducing speech signals
IPC: H04B1/68
Filed: 1965-04-15
Abstract: 1,056,403. Variable speed recording and playback apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 15, 1965 [April 18, 1964], No. 16246/65. Heading G5R. In an arrangement for reproducing speech recorded on a moving carrier member, in which the speed of the moving carrier is adjustable to different values for recording and reproducing, the output from the reproducing head is fed to a modulator-demodulator system 10, 14 in which the demodulator carrier oscillator frequency is adjustable to compensate for the difference between speeds of the moving carrier member when recording and reproducing.
Patent GB-367668-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H05B41/22
Filed: 1931-06-04
Abstract: 367,668. Dischargelamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) June 4, 1931, No. 16274. Convention date, July 25, 1930. [Class 39 (i).] In lamps having main electrodes 4, 4<1> which are incandescent during operation, and auxiliary electrodes, each auxiliary electrode 6, 6<1> is in the form of a sleeve surrounding a main electrode and is connected through a resistance 7, 71 to a supply lead other than that to which the adjacent main electrode is connected. The electrodes 4, 4<1> may consist of a sintered mixture of refractory metals and electronemitting substances, particularly oxides, and may be independently heated. Specifications 309,733, 314,811, and 315,387, [all in Class 39 (i), Electric lamps, Arc &c.], are referred to.
Patent GB-515388-A (GB)
Title: Improvements in processes for preparing composite positive transparencies for use inthe production of photogravure and rotagravure printing formes
IPC: G03F5/24
Filed: 1938-05-31
Abstract: 515,388. Photo-mechanical printing-surfaces. ODHAMS (WATFORD) Ltd., and VERRIOUR, S. J. May 31, 1938, No. 16290. [Class 98 (ii)] In preparing photogravure or rotagravure printing-formes, a composite positive transparency including both type or line matter and pictorial matter (i.e. matter not readily reducible to type or line) is prepared by (1) making a relatively opaque impression of the type or line matter on a transparent or transluscent carrier, (2) producing therefrom a negative by photographic contact printing, (3) combining this print with a paper negative of the pictorial matter by planning as described in Specification 487,570, (4) photographing this composite negative to obtain the composite positive transparency. The impression (1) may be made, for example with black or white ink on a thin cellulosic carrier, from set-up type, or in a machine which produces an impression from single types or lines of type; or it may be made in a photographic type-composing machine. The contact print (2) may be made on tinted sensitized paper. Specification 221,505, [Class 98. (ii)], also is referred to.
Patent GB-791570-A (GB)
Title: Process and apparatus for paper chromatography and paper electrophoresis
IPC: G01N30/90
Filed: 1956-05-25
Abstract: In paper strip chromatography or electrophoresis, the paper is formed into a roll and means is provided for preventing contact between individual layers of the paper, said means being such that no liquid film is produced between it and the paper strip. The contact prevention means consists of an artificial resin of low wettability for the solvent used, e.g. a fluorine-containing polymer, which is used in the form of a foil rolled up together with the paper strip; the foil preferably being patterned or deformed to reduce the area of contact between <PICT:0791570/III/1> <PICT:0791570/III/2> <PICT:0791570/III/3> it and the paper strip.  In a chromato graphy separation in Fig. 1 a paper strip a is laid upon an interleaving foil c and the two are rolled up together and held by a ring g, a piece is allowed to project from the roll and is dipped into the solvent d which is used as development liquid.  In carrying out paper electrophoresis the paper strip a is wetted with a buffer solution; provided with the substance under examination; assembled with two auxiliary foils c, c1 to form a composite assembly as in Fig. 2.  The two ends of the roll project into the adjacent electrode troughs e, e1, Fig. 3, which advantageously form the rigid compartment of the body f of the chamber.  The electrodes k, k1 consist of platinum wire, and project into parts of the electrode troughs e, e1 filled with paper pulp.  A combined process of electrophoresis and paper chromatography may be conducted with square paper sheets rolled up in square foils, which are first treated by electrophoresis and then after turning through 90 degrees chromatographed.
Patent GB-349774-A (GB)
Title: Improvements in or relating to means for supplying disinfectant to domestic sinks or the like
IPC: E03C1/046
Filed: 1930-05-28
Abstract: 349,774. Disinfecting sinks &c. HAGUE, F. H., 9, Wyndham Place, Crawford Street, Marylebone, London. May 28, 1930, No. 16400. [Class 26.] A device for supplying disinfectant to domestic sinks &c., comprises an extension chamber, or attachment for a water tap, having an outlet offering a certain resistance to the outflow, so that a quantity of water passes to a perforated receptacle containing disinfectant and disposed below the tap level by way of a branch outflow, preferably of small diameter. In the form shown the attachment comprises an anti-splash device 1, having layers of gauze above the nozzle outlet 4, and the receptacle 9 has a cover 10 removably attached by pin and bayonet slot connections 15.
Patent GB-1148071-A (GB)
Title: Fuel control mechanism for internal combustion engines
IPC: F02D1/10
Filed: 1966-04-15
Abstract: 1,148,071. Linkwork. CONTINENTAL AVIATION & ENG. CORP. 15 April, 1966 [4 May, 1965], No. 16490/66. Heading F2K. [Also in Division F1] In an I.C. engine fuel control means (see Division F1) a governor (22), Fig. 1 (not shown) set by a throttle (26) controls a fuel pump (12), and the control means 32, Fig. 3, acting through a linkage 28 on the full load stop of the fuel pump permits maximum fuel delivery at the idle and fully-open throttle settings and a reduced fuel delivery at the quarter-open throttle setting. The permitted maximum fuel delivery is progressively decreased from the idle to the quarter-open throttle settings and thereafter is progressively increased to the fully-open throttle setting. Throttle (26) acts through an arm (90), Fig. 2 (not shown), on the shaft 62 to which is secured the drive plate 64 carrying pins 70, 72 engaged in slots 78, 80 of link 74. A spring 84 urges the pins 70, 72 into engagement with the upper ends of the slots 78, 80. A tapered wedge 88, pivoted to the link 74, acts between a wedge block 48 and a lever arm 46 which is moved through a rod 38 and link 42 by a fuel density control (16). Wedge block 48 is carried by an axially-adjustable pin 50 having an extension 56 engaging guide surface 54. Surface 100 of lever arm 46 acts via a nose cam 91 and lever arm 89 on the linkage 28. In the position shown in Fig. 3 the throttle (26) is quarter open, the wedge 88 is in its lowest position in which lever arm 89 is rotated to its maximum clockwise position giving a minimum full-load stop setting through linkage 28. In the fully-open throttle position the mechanism assumes the position in Fig. 4 (not shown) in which pin 72 is engaged by the upper end of slot 80, pin 70 is clear of the upper end of slot 78 and wedge 88 is in its highest position to give the maximum counterclockwise position of lever arm 89 and maximum permitted fuel delivery. Similarly at the idle throttle position the mechanism assumes the position in Fig. 5 (not shown) which again gives the maximum counterclockwise position of lever arm 89 and maximum permitted fuel delivery.
Patent GB-170337-A (GB)
Title: A new or improved method of jointure for sheet metal
IPC: B21D51/42
Filed: 1920-06-21
Abstract: 170,337. London Aluminium Co., Ltd., and Leeder, W. J. June 21, 1920. Hollow-ware; pipes and tubes.-A tubular metal member is joined to a sheet having a flanged hole through which the member passes, by curling the end of the member to envelop the flange and forming a rib in it on the opposite side. A tubular blank 22 is flared at one end by dies, expanded to taper form by a drift inserted in the flared end, bulged at 20, Fig. 4, by end pressure by holders 18, 19 and the end 21 then inserted in a flanged hole 8 in a body 7, Fig. 5. The joint is closed by dies 23, 24 which curl the edge 21 around the flange 8 and flatten the bulge 20, Fig. 6.
Patent GB-896406-A (GB)
Title: Method of fluidising or reducing the viscosity of organic substances
IPC: F16L53/34
Filed: 1960-05-12
Abstract: 896,406. Heating flowing liquids dielectrically. PETRO-ELECTRONICS CORPORATION. May 12, 1960 [May 25, 1959], No. 16727/60. Class 39(3) [Also in Groups XVIII and XL(b)] In a method of fluidizing or reducing the viscosity of organic substances (e.g. oils) in a flow tube, microwave energy of a wave-length dependent upon the dielectric constant of substance flowing along the tube is supplied so that the flow tube acts as a waveguide and energy is propagated therethrough. A coaxial line input 30 is connected to waveguide 20 which extends through the mounting and coupling members 33, 16 into a fluid filled pipeline 12. At the lower end 24 of the waveguide 20 is mounted a coaxial extension 26 which is aligned parallel to the flow tube axis and at right angles to the waveguide 20. The extension 26 is designed to avert any tendency of the waveguide to produce an unequal propagation of energy through the tube. In one application, microwave energy of frequency of 3000 Mc/s is supplied from a magnetron to a flow tube of 3 inch diameter containing oil with a dielectric loss constant of 3À30, the wavelength being 12 cms. The distance of energy propagation along the pipeline which, in the example above, is in excess of 250 feet may be controlled by means of terminations 40 which comprise a plurality of metal rods 41 extending radially inwardly from the interior surface of the pipe-line union member 42. The fluid in the tube generally has a low dielectric loss factor thus enabling the energy to be transferred for considerable distances, whereas fluids and precipitates collected along the interior wall of the tubing serve to attenuate the energy and are thus heated, the heating and characteristics of the electrical energy having a pronounced effect in the depolymerization and reduction of viscosity of fluids and in the fluidization of precipitates. Thus a "skin effect" serves to remove incrustations on the pipe-line wall, and as a secondary effect flux lines extending inwardly from the surface of the pipe cause a reduction of the viscosity of the fluid flowing therethrough. Specification 896,407 is referred to.
Patent GB-380121-A (GB)
Title: A new or improved form of machine for vulcanizing rubber to various surfaces
IPC: B29C35/00
Filed: 1931-06-10
Abstract: 380,121. Vulcanizing rubber to surfaces. SIEW, W. T., 71, Perak Road, Penang, Straits Settlements. June 10, 1931, No. 16899. [Class 70.] Apparatus for vulcanizing a layer of rubber on to a surface, e.g. a road or floor, comprises a plurality of interlocking metal plates 1, Fig. 1, through which heat and pressure may be transmitted to the rubber. Fig. 13 shows the application of the invention to the vulcanization of a rubber surface layer 22 on a concrete base 23. Upon the layer of plates 1 portable heating units 4 are placed, and pressure is applied by jacks 10 inserted between the heating units and a weighted trolley 20 which is wheeled into position over the plates. The heating units 4 may be steam boxes fitted with flexible connections 5, as illustrated, or they may be boxes containing electric heating elements. In each case they are preferably provided with vertical partitions 7 to sustain the pressure.
Patent GB-1096083-A (GB)
Title: Controlling magnetic fields
Inventor: SMITH FREDERICK WARREN
IPC: H01F6/00
Filed: 1966-04-18
Abstract: 1,096,083. Masers; superconductor devices. MULLARD Ltd. April 18, 1966, No. 16911/66. Headings H1C and H1K. [Also in Division H2] In an interferometer arrangement using a plurality of masers each provided with its own flux-pump and electric motor assembly for supplying part of the maser magnetic field from an electromagnetic coil connected in the persistent current loop of the pump, the motors have a common control means so that the tuning of all the masers may be simultaneously adjusted. The motors may be of D.C., synchronous or induction type or may be supplied from a pulse source. Each motor may be housed inside or outside the cryostat of the maser, and in the former case the motor A and rotor R of the flux pump (which may be generally similar to that described in Specification 1,014,527) are mounted in a casing C carrying a disc D comprising an insulating support for three segments of superconducting material. These segments are connected in series by wires W and terminals E and supply the persistent current loop of the maser comprising electromagnetic coils L and an auxiliary coil K which can be heated by a heating coil H, the assembly K, H forming a " thermal switch ". Currents in the segments are induced by permanent magnets M carried by the rotor R.
Patent GB-888276-A (GB)
Title: Polyvinyl alcohol fibre production
IPC: D01F6/14
Filed: 1959-05-19
Abstract: A polyvinyl alcohol spinning solution containing 5-100%, based on the weight of the polyvinyl alcohol, of starch or a water-soluble starch derivative is spun into a coagulating liquid to form filaments. Specified starch derivatives include dextrin, methylated starch, acetylated starch, and amidoximated starch, and the spinning solution may also contain aminoacetalized polyvinyl alcohol, carboxymethyl cellulose, sodium alginate, or a dye, e.g. C.1.  Pigment Blue 15. The coagulating liquid may be aqueous sodium sulphate solution.  the percentage of starch or starch derivative in the spun filaments may be at least one-third less than the percentage in the spinning solution, calculated on the above basis, and the filaments may be stretched, heat-treated, formalized, acetalized or benzalized in known manner.  Filaments made by the process of the invention are rounder in cross-section and more transparent than conventional filaments, and exhibit enhanced dye-ability.  U.S.A.  Specification 2,072,302 is referred
Patent GB-857080-A (GB)
Title: Cyclopentanophenanthrene derivatives and process for the production thereof
IPC: C07J75/00
Filed: 1957-05-28
Abstract: The invention comprises 1, 2-dimethyl-estrone, 1, 2-dimethyl-estradiol, 1, 2-dimethyl-17a -ethinyl-estradiol, the corresponding 6-dehydro compounds, their esters with hydrocarbon, carboxylic acids containing less than twelve carbon atoms, and a process for their preparation involving the steps of treating 2a -methyl-D 4-androsten-17b -ol-3-one with an oxidising agent to form 2a -methyl-D 4-androsten-3, 17-dione, treating this with 2 mols of bromine to form the corresponding 2, 6-dibromo compound, dehydrohalogenating the latter and rearranging the resulting D 1,4,6 triene by treatment with a lower fatty acid anhydride and thereafter saponifying the resulting 1, 2-dimethyl-6-dehydro-estrone 3-acylate. Subsequent transformations, viz., reaction with potassium acetylide, reduction of the 17-keto group, esterification, and hydrogenation of the D 6-bond yield the other compounds of the invention. Detailed examples illustrate the preparation of the new compounds. Specification 853,291 is referred to.
Patent GB-827741-A (GB)
Title: Improvements in or relating to gas turbine plant
IPC: F02C3/02
Filed: 1956-06-04
Abstract: 827,741. Gas turbine plant. SPALDING, D. B. May 28, 1957 [June 4, 1956], No. 17185/56. Drawings to Specification. Class 110 (3). [Also in Group XXVIII] A gas turbine is supplied with motive gas substantially free from impurities harmful to the turbine by a pressure exchanger which feeds gas to a combustion chamber which in one embodiment feeds combustion products to a gas cleaner, in the form of a cyclone separator, which passes clean gas to the turbine and polluted gas to the pressure exchanger. In another embodiment the combustion products pass through the hot pass of a heat exchanger while clean gas from the pressure exchanger passes through the cold pass to the turbine. The heat exchanger and combustion chamber may be structurally combined. Further heat exchangers may be provided to heat the gas to the combustion chamber by the exhaust gases from the turbine and pressure exchanger.
Patent GB-1536457-A (GB)
Title: Azo pigments
IPC: C09B43/32
Filed: 1976-04-28
Abstract: 1536457 Monoazo pigments BASF AG 28 April 1976 [29 April 1975] 17235/76 Heading C4P Novel azo pigments having the formula (where n is 0 or 1; R is H or an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical; R<SP>1</SP> is C 1-4  alkyl or phenyl; X is H, Cl, Br or phenyl; Z is -NHCO-, -NHCONH-, -NHCOCONH-, or -NHSO 4 -; and K is the radical of a phenolic or enolic coupling component) are prepared by diazotization and coupling. The dyestuffs are used to colour coating agents, printing inks and plastics such as polyvinyl chloride, polyolefins, polystyrene and rubber.
Patent GB-172842-A (GB)
Abstract: 172,842. Duthie, J. A., and Milne, D. S., (trading as Duthie & Son). Nov. 2, 1920. Stands for motor-bicycles comprise a tilting plane or platform 5 making its tilting movement relative to a fixed support 1, 2 in such a manner that when the bicycle is run on to the plane the weight of the machine tilts the plane to the horizontal position, the plane being retained in this position by a hinged support 10 having a cross-bar 13 adapted to be engaged by the parts 17, 18 of a gravity stay 14. According to the Provisional Specification, the gravity stay is pivoted to the plane at a point nearer to the centre than the support or leg, and the stay carries a hook to engage with a pin on the leg.
Patent GB-664205-A (GB)
Title: The separation of oxygen-containing compounds derived from hydrocarbons
IPC: C07C29/74
Filed: 1949-06-30
Abstract: A mixture of water-insoluble oxygen-containing compounds derived from hydrocarbons is separated into fractions containing compounds with a more pronounced and a less pronounced polar character respectively by subjection to the action of two solvents flowing in countercurrent to each other, one consisting entirely or substantially of substances which contain two or more polar groups or consist of one polar group and a highly polarizable remainder, and the other consisting entirely or substantially of one or more paraffins with a boiling range outside that of the mixture to be separated.  Mixtures obtained by the Fischer-Tropsch and Oxo syntheses containing, for example, acids, esters, ketones, aldehydes, alcohols, and ethers, may be treated. The mixtures preferably have a narrow boiling range such as 10-40 DEG  C. They mainly comprise compounds of more than 5 carbon atoms and usually boil above about 110 DEG  C.  Best results are obtained with boiling points not above 250 DEG  C.  The polar solvents are preferably hydroxy compounds with or without ether groups, e.g. glycols or glycol ethers, especially diethylene glycol. Polyalcohols and their ethers, butylene, hexylene and polyethylene glycols, phenyl ethers of glycol, glycerine dimethyl ether, furfural, alkanol amines, oxy-nitro compounds such as orthonitrophenol, chlorhydrins, nitrobenzene, phenol, cresols, phenyl glycid ether, sulpholenes, sulpholane, and substituted sulpholenes and sulpholanes are specified solvents.  An excess of solvents is generally used so that solvents of higher boiling points than the mixture are preferred when recovery is effected by distillation.  When the boiling ranges overlap, recovery may be by water extraction.  The second solvent may be a petroleum fraction poor in or free from aromatics, preferably boiling above the mixture, e.g. liquid paraffin.  Temperature is generally 0-100 DEG  C., and a gradient may be maintained.  Mixtures of polar solvents or of polar solvent and modifying substances such as water may be used.  In examples: (1) a mixture of equal volumes of n-butanol-1 and methyl isobutyl ketone is fed to the middle stage of a 7-stage extraction column, diethylene glycol being fed to the first and liquid paraffin to the seventh stage.  The glycol phase yields 98.5 per cent butanol and the paraffin phase 98.5 per cent ketone; (2) a mixture of 2-methylhexanol-1 and di-isobutyl ketone is similarly extracted in 11 stages.  Specification 527,030 is referred to.
Patent GB-1393272-A (GB)
Title: Photographic silver halide products and diffusion transfer processes
IPC: G03C8/02
Filed: 1972-04-14
Abstract: 1393272 Photographic diffusion transfer silver halide material POLAROID CORP 14 April 1972 [16 April 1971] 17369/72 Heading G2C A photographic diffusion transfer process film unit comprises a plurality of layers including a layer of photo-sensitive material comprising photo-sensitive silver iodochlorobromide grains containing, by weight based on their total halide content, not more than 5% iodide and not more than 10% chloride, the remainder being bromide, the photo-sensitive material having associated therewith dye image-providing material which is diffusible in alkaline processing composition as a function of exposure, and a dyeable imagereceiving layer. The silver iodochlorobromide grains may have a mean grain size of 0À3-3 microns and more than 75% of the grains may have a grain size within Œ10% of a value within this range. The photo-sensitive material may additionally include second silver halide grains having different halide constitution from the silver iodochlorobromide grains e.g. silver iodobromide grains. The dye image-providing material may be a dye developer. The film unit may contain an opacifying agent, an aqueous alkaline processing composition in a rupturable container and a polymeric acid layer. The film unit provides increased diffusion transfer processing temperature latitude and improved storage stability and the photo-sensitive material has a reduced induction period for development of exposed grains.
Patent GB-174913-A (GB)
Abstract: 174,913. Lowe, H. Jan. 31, 1921, [Convention date]. Saccharine, obtaining.-Saccharine is obtained by electrolysis of a weak solution of alkali carbonate in which ortho-toluene-sulphamide is suspended; the yield may exceed 75 per cent. The reaction is favoured by the addition of ammonia or of lead, compounds, of cerium, or manganese. After electrolysis, the electrolyte is acidified and the saccharine is filtered off. In an example of 5.7 grm. of ortho-toluene-sulphamide are suspended in 90 c.c. of a 2N solution of sodium carbonate, 12 volts and 0.04 amperes per sq. cm. of anode being employed. Fresh sulphamide may be added as the reaction proceeds.
Patent GB-545786-A (GB)
Title: Improvements in or relating to advertising means, indicating signs and the like
IPC: G09F7/14
Filed: 1940-12-11
Abstract: 545,786. Signs. ZELL, M. Dec. 11, 1940, No. 17539. [Class 3 (ii)] Cut-out letters, &c. pictures, &c. are mounted on supporting surfaces by strips or sheets 10 provided with non-drying adhesive on each side. The strips 10 extend from top to bottom or from side to side of a whole letter, &c. Two identical letters, &c. may be superimposed and held together with slight lateral displacement by such adhesive strips, the whole forming a block letter for attachment to a window &c. by adhesive strips on the front of the forward letter or on the back of the rear letter. Rubber solution is mentioned as a suitable adhesive. Specification 471,289 is referred to.