baber/WOPTO huggingface dataset:
Patent GB-1453569-A (GB)
Title: Method of controlling the growth of bacteria fungi and algae
IPC: A01N43/76
Filed: 1975-04-16
Abstract: 1453569 Biocidal application of oxazolidines I M CHEMICAL GROUP INC 16 April 1975 [13 May 1974] 15697/75 Heading A5E [Also in Divisions C2, C5 and E1] A method of combating the growth of microorganisms and viruses comprises, applying to their habitat growth inhibiting amounts of an oxazolidine corresponding to the formula or a bicyclic oxazolidine corresponding to the formula  where R and R<SP>1</SP> are each independently a hydrogen atom or an alkyl group having 1 or 2 carbon atoms; R<SP>2</SP> is a hydrogen atom, an alkyl group having from 1 to 3 carbon atoms, or the group where R<SP>6</SP> is a hydrogen atom, a methyl- or ethyl group and R<SP>7</SP> is a methyl, hydroxymethyl or ethyl group, R 3  is H, an alkyl group having from 1 to 3 carbon atoms or a hydroxyphenyl group; R<SP>4</SP> is an acyloxymethyl group of the formula where R<SP>5</SP> is an alkyl or alkenyl group having 1 or 2 carbon atoms and R<SP>8</SP> is a hydrogen atom or an alkyl group having 1 or 2 carbon atoms. Typical compounds used are 4, 4-dimethyl-1, 3-oxazolidine; 1, 3-oxazolidine; and N-(2- meithyl-2-nitropropyl)-4, 4-dimethyl-1, 3-oxazolidine. Applications specified are in starch adhesives and solutions, in drilling muds .for the petroleum industry and in cutting oils
Patent GB-666914-A (GB)
Title: Improvements in or relating to method and apparatus for deriming a heat interchanger and for fractionating air
IPC: F25J5/00
Filed: 1949-06-14
Abstract: 666,914. Separation of air. STEVENS, A. H. (Air Products, Inc.). June 14, 1949, No. 15788/4 Class 8 (ii) A method of deriming a heat exchanger 23B having a passage 25 in which there is alternate flow of a continuous stream of a warm gas containing congealable vapours, e.g. air containing carbon dioxide, and a continuous stream of cold dry gas in the opposite direction, e.g. nitrogen from an air fractionating column 69 comprises passing a second stream of said cold gas at a higher pressure than the first continuously through a path 26 in the exchanger in heat exchange relationship with the passage 25, expanding this second stream in an engine 97 to a lower pressure and adding it to the first stream at a duct 101. In operation and with switching valves 29A, 29B in the positions shown air at 100 p.s.i. pressure to be fractionated in the column 69 and having traversed a filter 11, turbo compressors 15, 16 and coolers 17, 18 is divided at a junction 20 so that 80 per cent traverses a duct 21, valve 29A, a path 25 of an interchanger 23A and the shell of interchanger 23B, ducts 36, 38, 42, a flap valve 44 and an air feed line 48 to the base of high pressure stage 70. The air flowing through the interchanger 23A is cooled by indirect contact with the said first mentioned stream of counterflowing nitrogen which is supplied from the top of the low pressure stage 71 through ducts 83, 49, a flap valve 47, ducts 46, 40 to the shell of the interchanger 23A which is vented through a duct 33, the valve 29B and a valved duct 28. Additional cooling is effected by a portion of the said second nitrogen stream which latter is supplied from the top 85 of the high pressure stage 70 through-ducts 89, 90, 91 and the path 26. The remainder of this second nitrogen stream is passed through the path 26 of the interchanger 23B being derimed and is thereafter vented through the valve 29B and the duct 28. The 20 per cent portion of the incoming air traverses a manifold 22, a switching valve 51A, the shell of an interchanger 50A being derimed by returning oxygen and the tubes of an interchanger 50B, after which the air streams are combined in a duct 56, and after passing a flap valve 58 this air is fed into the air feed line 48. The counterflowing oxygen in interchangers 50A, 50B is supplied from the base of the low pressure section 71 through a line 60, a flap valve 61 and lines 63, 64 and is thereafter vented through a switching valve 51B and a line 68. In a modification cold accumulators are substituted for the exchangers 23A, 23B, 50A, 50B.
Patent GB-458567-A (GB)
Title: Improvements in mirror projectors for illuminating semi-cylindrical surfaces
IPC: F21V7/09
Filed: 1936-06-05
Abstract: 458,567. Reflectors for illuminating semi-cylindrical surfaces. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. June 5, 1936, No. 15806. Convention date, June 6, 1935. [Class 75 (ii)] A reflector, for the uniform illumination of a stage or like semi-cylindrical surface 30 from a point source of light 7 in or near the axis 10 of the semi-cylinder, comprises two halves of bodies of revolution the axes of which coincide with one another and are parallel to or identical with the axis of the semicylinder, and is so shaped that no reflected light is emitted into a semi-conical space lying between the source of light and the lower boundary of the semi-cylinder. In the form shown, one half consists of a parabolic reflecting section 1, a slightly frosted conical closure glass 4, and a spherical reflecting section 31, whilst the other half consists. of a bell-shaped reflecting section 2 and a spherical reflecting section 3. The section 1 is formed from a parabolic curve 5 having its focus at the point 7, vertex 6, and an inclined axis 9, and is adapted to reflect substantially parallel rays 11 ... 15 on to about the lowermost third 29 of the surface 30. The section 2 is so curved as to reflect crossing rays 16 ... 21 on to the middle and uppermost portions of the surface 30, whilst the section 3 has its centre at the point 7 so as to reflect rays 22 ... 26 on to the section 1. The section 31 may be of the same curvature as the section 3 and prevents light being projected downwardly beyond the semi-cylindrical surface.
Patent GB-222833-A (GB)
IPC: H04B3/34
Filed: 1924-07-01
Abstract: 222,833. Felten & Guilleaume Carlswerk Akt.-Ges. Oct. 6, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Induction, preventing and minimizing.-In order to reduce cross-talk in four-wire cables, balancing is first effected in those sections in which the " part capacities " are substantially uniform by a systematic crossing within the sections, and the remaining capacity inequalities in the cable are then removed bv one of the known methods. Such a section may be a length of manufacture. To balance the wire-to-wire capacities, each section is divided into four equal lengths, and crossing between the wires in each pair is necessary. To balance the wire-to-earth capacities in addition, each section is divided into eight equal lengths, and crossing of the pairs is also necessary. Inequalities of mutual inductance may be removed in a similar way. The invention may be applied to cables containing more than four wires.
Patent GB-793549-A (GB)
Title: Photographic materials
Inventor: GAZZARD EDWARD GEORGE
IPC: C08F291/18
Filed: 1955-06-03
Abstract: 793,549. Photographic materials. IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 30, 1956 [June 3, 1955: June 3, 1955], Nos. 15943/55 and 15944/55. Class 98(2) Protective, filter, antihalation or lightsensitive layers are made by coating a support as of paper or film base or an already formed layer thereon with a waterpermeable grafted polymer obtainable by polymerizing one or more vinyl monomers of formula CH 2 =CXY where X is hydrogen or an akyl radical and Y is a hydrophilic group or one convertible thereto such as an amide, acyloxy, acylamino, carboxyl or carboxylic ester group, in the presence of a water soluble or insoluble macromolecular substance of molecular weight greater than, 1000, such grafted polymer being applied in organic solvent with substances appropriate to the particular layer concerned dissolved or dispersed therein. The macromolecular substances are exemplified as gelatin and ethyl cellulose but numerous others are listed, and the grafted polymers formed therefrom have the macromolecules attached to the polymer chains and are different from copolymers, as further described in Specification 715,194 [Group IV(a)]. The water-permeable grafted polymers are especially valuable for making photographic materials similar to those of Specification 718,404 but in which the grafted polymers replace cellulose ether as continuous phase in an organic solvent with a gelatino-silver halide emulsion as dispersed phase therein, thus in Example 1 an ethyl cellulose subbed paper base is coated with a dispersion of dried photosensitive granules in a 5 per cent solution of gelatin grafted polymer, and the coat is dried exposed and pro-. cessed to give a black and white image the photosensitive granules being prepared by normal silver-bromoiodide precipitation in gelatine solution, stirring the mixture in a toluene solution of ethyl cellulose, dehydration with sodium sulphate .and subsequent washing with a petroleum fraction and drying, and the gelatin grafted polymer solution being prepared by heating a solution of gelatin with partially hydrolysed polyvinyl acetate, stirring in methyl methacrylate, methacrylic acid and azo-di-isobutronitrile washing and drying the precipitated polymer and dissolving it in a methanol/ethyl lactate mixture. Example 2 describes a somewhat similar procedure using an ethyl cellulose grafted polymer prepared in toluene solution with a subsequent dispersion in ethanol. Example 3 describes the use of the gelatin grafted polymer of Example 1 as a supercoat, and Example 4 the direct precipitation of silver bromoiodide into an aqueous ammonia solution of such gelatin grafted polymer.
Patent GB-957637-A (GB)
Title: Improvements in or relating to electro-luminescent device
IPC: H05B33/28
Filed: 1962-04-26
Abstract: <PICT:0957637/C3/1> An electroluminescent device comprises a transparent base-plate 1 on the surface of which are successively deposited a transparent conductive coating 2, a dielectric electroluminescent layer 3, a reflecting dielectric layer 4 and a non-transparent back electrode 5 where the surface of the back electrode 5 is smaller than that of the base-plate 1, but larger than the surface of the conductive coating 2.  The device may be made by coating the rims of the base-plate with a protective suspension before depositing the conductive coating, and subsequently removing the protective material.
Patent GB-974652-A (GB)
Title: Improvements in or relating to methods of protecting cathode-ray tubes from implosion
IPC: H01J29/87
Filed: 1963-04-23
Abstract: 974,652. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 23, 1963 [April 26, 1962], No. 15983/63. Heading H1D. In a method of protecting the glass bulb 2 of a cathode-ray tube from implosion, a strengthening layer 8<SP>1</SP> is provided around, and provides a frame for, the display area 3 of the tube. During manufacture, a strengthening layer 8 is placed in a mould 7 slidably engaged with a central member 5 having a seal 6 which masks the display area 3 when hardening fluid is added to layer 8 and the mould is closed. The layer 8 may be reinforced with glass fibres or a braiding of metal wire, and the hardening fluid may be a synthetic material or unset concrete. A metal cup may be placed in the mould initially so as to provide a cover for the reinforced layer. Mounting lugs may be provided in the mould so as to be fixed to the reinforced layer during the moulding process. As shown, the reinforced layer 8<SP>1</SP> adjoins a reinforced synthetic layer 10 initially applied to the tube. Alternatively, the bulb may initially be fitted with a metal cup, the space between cup and bulb being filled with hardening material. Specification 974,651 is referred to.
Patent GB-599911-A (GB)
Title: An improved apparatus for controlling the ph value of liquids
IPC: G05D21/02
Filed: 1944-08-22
Abstract: 599,911. Mixing liquids in flow. BOBY & CO., Ltd., W., and SCOWEN, J. J. E. Aug. 22, 1944, No. 15992. Addition to 559,001. [Class 86] The apparatus of the parent Specification is modified in that the corrective fluid is supplied through a single control means, which is operated both by a device responsive to the rate of flow of the liquid to be treated, and a device responsive to the pH of the liquid. The flow responsive device comprises a float 10 whose vertical position is controlled by the rate of flow of liquid over a weir in a tank 11. A vertical rod 12 mounted in guides 13 is secured to the float 10 and is connected by a wire 14 passing over pulleys 16, 17, 18 to a needle valve 19 which operates in an orifice 20 in a tank 21, to which the corrective fluid is supplied from a constant level tank. A vertical movement of the float 10 is transmitted to the needle valve 19, which is also operated by the vertical movement of the pulley 17. The latter is mounted on a rod 29 joined to a wire 33 which passes around a pulley 32 rotatable by the pH responsive device. Further modifications are described in which the movable pulley is caused to move both horizontally and vertically under the action of the pH responsive device.
Patent GB-683564-A (GB)
Title: Manufacture of combustible gas
IPC: C10G9/38
Filed: 1950-06-27
Abstract: 683,564. Oil gas generation. ALLIED CHEMICAL & DYE CORPORATION. June 27, 1950 [Sept. 2, 1949], No. 16000/50. Class 55 (ii). Oil gas is generated by passing steam upwardly through a zone 6 containing hot refractory material and an empty zone 4 in which it encounters a downward spray of oil from a nozzle 25, the gaseous products passing downwardly through empty and refractory-filled zones 38, 41, to effect further cracking and fixing. Preferably a carrier gas such as methane, ethane or propane from a line 65 or the generated gas returned through a line 66 is added to the steam as propelling medium for part or all of the make period. In the duplicated apparatus shown the cycle of operations comprises blast and make periods with interposed steam purges in one direction followed by periods of reverse flow. For a blast period primary air is admitted from a line 15 downwardly through a refractory-lined riser pipe 9 and is heated by the checkerbrick in zone 6, burning off deposited carbon, before passage through a narrowed orifice 7 into zone 5 into which heat oil from a line 26 is sprayed and ignited to heat the walls, secondary air being admitted through a line 32. The heated air burns off carbon from the walls of both zones 4 and 38 and combustion products after heating the checkerbrick in zone 41 ascend a riser pipe 43 to a stack 46. Steam for the purge and make periods enters riser 9 through a line 18. During the make steam and recycle gas issue through orifice 7 at about 50 ft. per second. Carbon depositing on the walls of chambers 4, 38, in part reacts with the steam to form blue gas and before orifice 42 into zone 41 is reached less than 10 per cent of carbon resulting from cracking remains in the gases, which after fixing in zone 41 pass up through riser 43 and a conduit 51 to a wash box and foul gas main. "Liquid-petroleum gas" such as propane, butane and pentane or heavy cracked residuums or other low grade oils may be used in the process.
Patent GB-216359-A (GB)
Title: Improvements in hanging devices for clothes, joints, poultry and the like
IPC: A47G25/06
Filed: 1923-06-21
Abstract: 216,359. Unthank, G. R., and Spanner, E. F. June 21, 1923. Butchers' fittings and accessories.-A sliding rack for garments, poultry, joints, &c. comprises a fixed guide member A of I-section and a sliding supporting member B or T-section the inner end of which is provided with lugs a slidably embracing the lower flanges of the guide A which is provided at its front end with downwardly depending lugs U upon which the flange of the member B slides. The lugs b may be provided with rollers. Stops, constituted by a screw c and an enlargement of the lower flange of the member A, limit the sliding movement of the member B.
Patent GB-107518-A (GB)
Title: Improvements in the Manufacture of Followers for use with Latching-bolts.
Inventor: BRYAN SAMUEL PERCY
IPC: E05B9/00
Filed: 1916-11-10
Abstract: 107,518. Bryan, S. P. Nov. 10, 1916. Latches, sliding.- A follower for use with a latching-bolt is made in halves from sheet metal, each half comprising a hollow half of the boss a and half the thickness of the horn b. Parts of the metal may be bent inwards to form the walls of openings through which the spindle passes.
Patent GB-751009-A (GB)
Title: Improvements in or relating to telephone handsets
IPC: H04R1/12
Filed: 1953-06-11
Abstract: 751,009. Mouthpieces. JUNGHANS, H. June 11, 1953 [Dec. 13, 1952], No. 16187/53. Addition to 749,111. Class 40 (4). In a telephone mouthpiece device for preventing overhearing by persons in the vicinity of the speaker as in the parent Specification a part of the insert element is perforated to prevent reflection around the inside walls of the element and thus avoid distortion. The insert of the device, Fig. 1, has a mouthpiece 1 and is formed with two perforated walls 1a, 3, between which a layer of sound deadening material such as wadding or paper may be placed. Either or both of the walls may be detachable from the mouthpiece to facilitate replacement of the material, and a pressure gauge 5 may be fitted so that the speaker can regulate the loudness of his voice if the pressure becomes such as to result in distortion. In an alternative embodiment the gauge is replaced by an audible warning device such as a whistle. A microphone may be included in the device, or the device may be suitable for attachment to a normal telephone mouthpiece, Figs. 6, 7 (not shown), and in both cases a moistureproof diaphragm is provided to protect the microphone from moisture in the speaker's breath. The insert in the latter embodiment is free to move telescopically in its sleeve and a helical spring acting on the bottom of the insert maintains a uniform pressure between the mouthpiece and the mouth of the user. A hygienic crepe paper sheet having a hole for the passage of sound may be placed within the mouthpiece.
Patent GB-120421-A (GB)
Title: Improvements in Fire-proofing Processes and Compositions.
Inventor: WALTON SAMUEL ARCHIBALD
IPC: D06M11/82
Filed: 1917-11-06
Abstract: 120,421. Walton, S. A. Nov. 6, 1917. Distempers and water paints.-Relates to fireproofing wood, cloth, paper, metal, &c., and consists in coating or impregnating the object to be fire-proofed with a compound containing a precipitated double borate of zinc and aluminium and a colloidal medium. The double borate of zinc and aluminium is formed by dissolving molecular proportions of zinc sulphate and aluminium sulphate in hot water and adding to the. boiling solution the requisite quantity of borax to precipitate the double borate. The fire-proofing composition is formed by suspending the precipitate in a colloidal medium, preferably one formed by dissolving 4 oz. gelatine in a gallon of water at 90‹ C. and adding 12 oz. of ammonium chloride, the temperature being maintained until effervesence ceases. When subjected to great heat, the compound forms an amorphous glaze which offers great resistance to high temperature or flame.
Patent GB-580898-A (GB)
Title: Improvements in fishing lines
IPC: A01K91/00
Filed: 1944-08-26
Abstract: A fishing line is dressed with a solution of nitro-cotton cellulose and castor oil, preferably in the proportions by weight one of cellulose and between three and five parts of blown castor oil.  A quantity of litharge and linseed oil may be added.  The line may be impregnated in a container under pressure or a vacuum, and then run through a gland to remove the surplus coating mixture.  A number of coats may be applied.
Patent GB-698140-A (GB)
Title: Improvements relating to drain valves for fuel and like tanks
Inventor: BRADFORD FRED
IPC: B64D37/00
Filed: 1951-07-10
Abstract: 698,140. Manually-actuated valves. ENGLISH ELECTRIC CO., Ltd. July 4, 1952 [July 10, 1951], No. 16335/51. Class 135 A drain valve for a tank comprises a spring- loaded closure member 3 housed in a support 1 arranged within the tank and secured to the bottom 2 thereof, and the member 3 is provided with a ring 4 of flexible sealing material which engages a seating surface formed, e.g. countersunk, in the inside surface of the tank wall and surrounding the drain hole 2a. The support I is cylindrical and is provided with lugs 1a by which it is bolted to the tank, and the liquid has access to the inside of the support through the apertures left between the lugs. When the support is removed from the tank, the valve is retained in the support by a circlip 6. To open the valve, a rod-like member, which may be screwed into the valve at 3b, is pushed up through the drain hole 2a.
Patent GB-551096-A (GB)
Title: Improvements in or relating to to plate or disc-shaped bodies of ceramic material or glass for use in electron discharge tubes
IPC: H01J19/42
Filed: 1941-12-18
Abstract: 551,096. Discharge apparatus. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Dec. 18, 1941, No. 16376. Drawings to Specification. [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 605,350, [Group XL (a)]
Patent GB-514583-A (GB)
Title: Improvements relating to the manufacture of barium compounds
IPC: C01F7/168
Filed: 1938-06-01
Abstract: 514,583. Barium compounds. ALLEN (STOCKTON), Ltd., A. G., and TYRER, D: June 1, 1938, No. 16382. [Class 1 (iii)] Barium compounds are made by (a) heating a mixture of barium carbonate and 10 per cent. of its weight of alumina or (b) heating a mixture of barium sulphate and 10 per cent. of its weight of alumina preferably in the presence of sufficient reducing agent to reduce a quarter of the sulphate to sulphide to a temperature below that at which fusion occurs. The alumina prevents fusion. The product may be 5BaO.Al2O3. It is readily soluble 'in hot water from which barium hydrate crystallises on cooling. Alumina may be recovered from the mother liquor by dilution and hydrolysis or precipitated either in admixture with barium carbonate by carbon dioxide or as calcium aluminate by lime. The raw materials should preferably contain little silica as this gives rise to an insoluble barium silico-aluminate.
Patent GB-799993-A (GB)
Title: Method of producing phosphor patterns in cathode ray tubes
IPC: H01J9/227
Filed: 1956-05-28
Abstract: 799,993. Colour television tubes. SYLVANIA ELECTRIC PRODUCTS, Inc. May 28, 1956 [June 21, 1955], No. 16451/56. Class 39(1). A method of forming a cathode ray tube viewing panel having multiple phosphor patterns thereon comprises the steps of coating the panel with a layer of a first phosphor and radiant energy sensitive material, exposing predetermined areas of the layer to radiant energy, e.g., light, to form the first phosphor pattern, washing to develop that pattern, cleaning to assure removal of the layer from the unexposed areas and repeating these steps with other phosphors to form subsequent phosphor patterns on other determined areas. The sensitive material may be dichromate sensitized polyvinyl alcohol which hardens on exposure to light and developing may be performed by washing the panel with deionized water. The cleaning step may be carried out with sensitized or unsensitized polyvinyl alcohol followed by drying and a final rinse with deionized water. Reference has been directed by the Comptroller to Specification 713,908.