baber/WOPTO huggingface dataset:
Patent GB-869229-A (GB)
Title: Improvements in or relating to circuit arrangements for limiting the amplitude of electrical signals
IPC: H03G11/02
Filed: 1957-11-07
Abstract: 869,229. Valve limiting circuits. FERNSEH G.m.b.H. Nov. 2, 1957 [Nov. 7, 1956], No. 34738/57. Class 40(6) A signal limiter comprises two valves in cascade, at least one of the valves having a D.C. restorer connected to the grid, a diode being connected between the output electrodes of the two valves becoming conductive to provide negative feedback when the input level exceeds a pre-determined value. In the circuit shown, when positive video signals at terminal 1 exceed a pre-determined value, diode 15 conducts and provides negative feedback across valve 9, limiting further increase in signal level. If complete limiting is not required, a resistor 18 is added to the feedback path. The limiting level is adjustable by a variable resistor 17. The D.C. levels at the grids are clamped by diodes 5, 13.
Patent GB-190723-A (GB)
Title: Improvements in installations and devices for the distillation and depolymerization of liquid or liquefiable hydrocarbons
Filed: 1922-12-20
Abstract: 190,723. Seigle, A. A. F. M. Dec. 22, 1921, [Convention date]. Hydrocarbons, cracking; column stills and rectifiers. - Hydrocarbon oils such as petroleum, peat, shale, or lignite oils, heavy tars, resin oils, naphthalene oils, &c. are vaporized by being fed from a tank A through a preheater B to the lower part of a vertical annular retort C heated by aflame projected down the central cavity from a burner 3. The oil vapours rise through annular passages formed by discs p, on which are placed chips of copper, iron, aluminium, nickel, &c. to act as catalysts. The vapours, which attain a temperature of 550-650‹ C., pass from the top of the retort to coolers D, D' which are surrounded by jackets containing heated water or calcium chloride solution which, by liberation of steam under pressure maintains definite temperatures of about 250- 300‹ C. in cooler D and about 180‹ C. in cooler D<1>. The vapours are finally passed to a watercooled condenser and either to a compressor, or a scrubber in which they are washed with heavy oil. The residual gas may be used for lighting railway carriages &c. The coolers D, D' contain trays supporting metal catalysts. The gases of combustion from the burner 3 are withdrawn from the base of the retort over preheaters B, G for oil and water by a pump 6 to a stack 7. The retort is provided with plugs c through which cold air may be admitted to the combustion chamber and also with tubes open to the atmosphere at the top of the retort and opening into the combustion chamber at various levels to admit heated air. The retort tapers to the bottom so that the internal casings and the discs p may be withdrawn from the top for cleaning &c. The oil may be vaporized in a separate still and the vapours only admitted to the retort. Specification 185,140 is referred to.
Patent GB-605417-A (GB)
Title: Improvements in and relating to the manufacture of resinous condensation products
IPC: C08G12/40
Filed: 1945-12-21
Abstract: Products obtained by condensing with the aid of heat 1 mol of urea with 1.5 to 3 mols of formaldehyde are modified by water-soluble sulphoxylates, their addition compounds with aldehydes, or a salt which generates or is converted into a sulphoxylate by reaction with aldehydes.  There may also be present bisulphites, as described in Specification 593,111. Specified modifiers are sodium formaldehyde sulphoxylate, sodium ethyl sulphoxylate, sodium benzaldehyde sulphoxylate, sodium hydrosulphite (Na2S2O4) which yields sodium sulphoxylate and bisulphite, magnesium hydrosulphite.  The condensation may be aided by acid or alkaline catalysts, and may be carried out in one step or in stages.  The products may be used (as formed or mixed with alcohol, water, or formaldehyde solution) as adjuvants in paper making, together with customary sizing and loading substances, e.g. rosin, alum, kaolin, terra alba, casein, gelatin, starches or, alginates, preferably in quantities of 0.25 to 10 per cent by weight of the dry cellulose stock.  The adsorbed condensate is cured by heat, e.g during drying, when acidic accelerators, e.g. paper-makers' alum (aluminium sulphate), may be present.  Solutions of the products may be stabilised by the addition of mildly alkaline substances, e.g. borax, sodium bicarbonate, or triethanolamine, and such solutions may be concentrated or dried and solutions of the dried products be used instead of the original products.  In examples: (1) urea, formaldehyde, and sodium formaldehyde sulphoxylate are heated in the presence of sulphuric acid; (2) urea and formaldehyde are heated in the presence of disodium hydrogen phosphate, then further heated with sodium formaldehyde sulphoxylate in the presence of sulphuric acid; (3) urea, formaldehyde and sodium hydrosulphite are heated in the presence of sulphuric acid; (4) urea, formaldehyde, and sodium formaldehyde sulphoxylate are heated; (5) (6) as example (4) but with the addition of sulphuric acid after partial condensation; (7) urea solution is fed continuously into a boiling solution of formaldehyde and sodium formaldehyde sulphoxylate acidified by sulphuric acid, condensation continued after the addition of the urea; (8), (10) as in example (7) but the sulphoxylate is added with the urea to boiling formaldehyde; (9) as in example (7) but with the use of sodium hydrosulphite instead of sodium formaldehyde sulphoxylate; (11) as in (1) followed by condensation with further urea; (12) urea and formaldehyde are condensed in the presence of disodium phosphate and formic acid then heated with (12) sodium formaldehyde sulphoxylate, or (13) sodium hydrosulphite; (14) urea, formaldehyde, sodium formaldehyde sulphoxylate and sodium bisulphite were condensed in the presence of sulphuric acid.
Patent GB-647546-A (GB)
Title: Improvements in stuffing boxes
IPC: F16J15/18
Filed: 1947-12-31
Abstract: 647,546. Stuffing-boxes. MOTOSACOCHE SOC. ANON. Dec. 31, 1947, No. 34983. Convention date, Feb, 17, 1939. [Class 122(v)] In a stuffing box for sealing a movable shaft 10 against fluid pressure 12 which includes a pair of cooperating members 11, 14 which embrace the shaft and are adapted to be screwed one into the other by screw threads 13 co-axial with the shaft, a tapered seating 16 carried by one of the members to receive a resilient packing ring 17 having a bore which fits the shaft and an outer surface tapered to correspond with the seating, so that pressure applied axially to the thick end of the packing ring will cause it to press tightly against the seating and the shaft and form a fluidtight seal, a circular knife edge 18 carried by one member co-axially with the screwthreads cuts into an opposed surface 15 carried by the other member when the two members are screwed together so as to prevent fluid under pressure escaping by way of the screw-threads. The face 15 may engage the thick end of the packing 17 to clamp it in position or, as shown in Fig. 2, a spring 20 may be provided for this purpose.
Patent GB-883523-A (GB)
Title: Bituminous compositions
Inventor: SIMPSON WARREN CANDLER
IPC: C08L95/00
Filed: 1958-10-31
Abstract: A bituminous composition comprises (i) a polyepoxide having more than one vicinal-epoxy group in the molecule, (ii) a polymerized unsaturated long chain acid, and (iii) a bitumen. Specified compounds include: (i) glycidyl ethers of polyhydric alcohols or phenols (e.g. bis phenol A), lists of epoxidized oils and epoxidized esters (including polyesters), and epoxidized 2, 2-bis(2-cyclohexenyl) propane, vinyl cyclohexane, dicyclopentadiene, and polymers of butadiene with or without acrylonitrile or styrene; (ii) polymerized (especially dimerized and trimerized) dodecenedioic, 10,12-eicosadiene dioic, 812,-eicosadiene dioic, tetradecenoic, 8,10-octadecadienedioic, 8,12-tetradecadiene dioic, linoeic, linolenic, eleostearic, licannic, and soya bean oil acids; (iii) asphaltic bitumens, coal tars, petroleum fractions, and residual fuel oils.  Epoxy curing agents specified are NaOH, KOH, Na phenoxide, oxalic acid, phthalic anhydride, AlCl3, ZnCl2, Fe Cl3, BF3 and complexes thereof, phosphoric acid, n-butyl orthophosphate, diethyl ortho phosphate, hexa ethyl tetraphosphate, a -methyl benzyl dimethylamine, triethylamine, ethylene diamine, diethylamine, diethylene triamine, triethylene tetramine, pyridine, piperidine, N,N1-diethyl-1,3-propane diamine, dicyandiamide and melamine.  Inert fillers may be added, e.g. crushed rock, quartz, shells, Al2O3 and sand.  Uses.  The prime use is for coating concrete, bitumen, wood or metal, particularly in the form of roads or runways. Specifications 818,810, 819,107, 860,287 and 883,522 are referred to.ALSO:A bituminous composition comprises a polyepoxide having more than one vicinal-epoxy group in the molecule, a polymerized unsaturated long chain acid, and a bitumen.  Inert fillers may also be included. Lists of suitable components are given, including curing agents for the polyepoxide.  Fillers include crushed rock, quartz, shells, sand, alumina and resins. Specifications 818,810, 819,107, 860,287 and 883,522 are referred to.
Patent GB-1124438-A (GB)
Title: Improvements in and relating to pairs of hi-hat cymbals
IPC: G10D13/06
Filed: 1967-07-31
Abstract: 1,124,438. Cymbals. R. PAISTE, and T. PAISTE, [trading as R. & T. PAISTE K.G.]. 31 July, 1967 [23 June, 1967], No. 35064/67. Heading G5J. The inner surface at the periphery of one or both of a pair of Hi-Hat cymbals is made uneven or discontinuous so as to prevent sound deadening caused by complete contact of the peripheries of the cymbals. The unevenness may be caused by radial corrugations on the inner surface or both surfaces, and the discontinuity by holes.
Patent GB-474944-A (GB)
Title: Improvements in apparatus for the sterilization of liquids
IPC: A23L3/18
Filed: 1936-12-21
Abstract: 474,944. Plate heat-exchangers. JUNG, R., (trading as BEECK, INH. R. JUNG, A.). Dec. 21, 1936, No. 35070. Convention date, Dec. 20, 1935. [Class 64 (iii)] A milk &c. pasteurizer comprises a series of steam &c. jacketed frusto-conical elements a nested together in spaced relationship to provide passages c disposed in parallel between the milk inlet and outlet ports o, p respectively. The milk entering the port o is forced by impellers d mounted on a shaft f through the passages between the elements to the tubular ducts k formed in the rings i, in which the elements are mounted, and thence to the outlet port p in the cover. The steam &c. passes through the port s into the jacket spaces of the elements and out through ports in the cover. Two or more apparatus for treating different liquids may be mounted upon a common base as shown in Fig. 3.
Patent GB-759390-A (GB)
Title: Improvements in or relating to moulding pneumatic tyres
Inventor: ADAMS ARTHUR LESLIE
IPC: B29D30/54
Filed: 1953-12-17
Abstract: 759,390. Moulds for tyres. DUNLOP RUBBER CO., Ltd. Aug. 20, 1954 [Dec. 17, 1953], No. 35115/53. Class 87(2) Tyre cover moulding or remoulding apparatus is adaptable to different sizes of covers by the use of a pair of complementary annular side plates 1 which mould the bead, side-wall and shoulder portions of a cover and which co-operate with a tread ring 7. A spacer 5 fixes the distance between the side plates for the required width of tyre cover and a tread ring 7 of appropriate width is selected. The inclined moulding surfaces lc allow larger diameter tread rings 7 to co-operate with them, Fig. 4. Fig. 4 also shows an alternative method of adjusting the width, one side plate having a spigot 1d which fits inside the other side plate and which for very wide covers, may be provided with an extension 10. Curing heat is applied through steam piping 2, 2a. Each side plate may comprise separable circumferentially outer and inner sections to enable covers of various head sizes to be moulded by using different inner sections with the same outer section.
Patent GB-1405462-A (GB)
Title: Shield-gas arc welding gun
IPC: B23K9/29
Filed: 1972-07-27
Abstract: 1405462 Welding by fusion W DINSE 27 July 1972 [3 June 1972] 35136/72 Heading B3R In a gas-shielded, consumable electrode wire, welding gun, wire and shielding gas are fed respectively to a wire contact tube 3 and a gas nozzle 1 through a tubular body which extends through a gun handle and comprises concentric rigid internal and external tubes 7, 19, the interior of the tube 7 serving to guide the wire, via a guide coil 20, and the spacing between the tubes serving to convey the shielding gas, the latter also providing cooling. The external surface of the internal tube is extended (as by grooves, fins, or screw threads) so as to increase heat transfer surface area; and the external tube external surface may also be so extended. The internal tube 7 is preferably thick walled, in comparison with the external tube, for low electrical resistance. As shown, a gun housing 21 incorporating a handle and provided with cooling slots 34, 35 comprises two parts releasably secured together by screws 22. A connecting sleeve 13 is non-rotatably secured to the forward end of the housing by slots 17 in a thin-walled, low heat transfer, rear section of said sleeve. A slotted sleeve 5 is screwed at 16 on to the forward end of the sleeve 13. The external surface of the internal tube 7 has a helical screw thread 9 the crests of which are engaged by the internal surface of the external tube 19, and has longitudinal gas grooves 8. Insulating sleeves 11, 18 are interposed between the forward end of the internal tube 7 and the connecting sleeve 13. The assembly of sleeves 13, 11, 18 is held against the end of the external tube 19 by locknuts 10 screwed on to the internal tube thread 7. The free end of the internal tube 7 has screwed thereon a socket 4 to the forward end of which is secured, by screwing or pushfitting the contact tube 3. The gas nozzle 1, provided with an insulating insert 2, is pushed between the slotted sleeve 5 and the connecting sleeve 13. The rearward end of the tubular body 7, 19 is located in the handle portion of the housing 21 and is screwed into a component 23 carrying a gas hose attachment ferrule 24. A welding current trigger-operated switch 26 is housed below the component 23 through which said current is fed. Shielding gas flows through the hose ferrule 24 and the longitudinal groove 8 and out into the annular space between the contact tube and the gas nozzle. The gun may be used without shielding gas.
Patent GB-411851-A (GB)
Title: Improvements in and relating to sound or like air wave echo apparatus
IPC: G01S1/72
Filed: 1932-12-12
Abstract: 411,851. Piezo - electric crystals. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Rice, C. W. ; 1161, Lowell Road, Schenectady, New York, U.S.A.) Dec. 12, 1932, No. 35194. Convention date, Dec. 10, 1931. [Class 40 (v).] In a signalling apparatus utilizing inaudible air sound waves, the waves are transmitted along a tube 14 which opens into a small chamber closed by a diaphragm 69 held at its periphery. The central part of the diaphragm may be stiffened by a piece of light material 70 which bears upon the upper one of a stack of piezo-electric crystals 71, the lower one being supported by a heavy base 72. The natural frequency of the stack equals that of the sound waves. A common electrode 74 is arranged on one of the broad faces and separate electrodes 75, 76, with terminals 75<1>, 76<2> on the opposite faces.
Patent GB-870190-A (GB)
Title: Electrodes for electron gun unit
IPC: H01J29/82
Filed: 1958-11-03
Abstract: 870,190. Electron lenses. JOHNSON & HOFFMAN MANUFACTURING CORPORATION. Nov. 3, 1958 [May 28, 1958], No. 35246/58. Class 39(1). A re-entrant tubularelectrode 22, Fig. 6, having an integral flange 25 extending radially outward from the outer tubular section 24 of the electrode in a plane parallel to, between and spaced substantially from, the opposite ends of the inner re-entrant tubular section of the electrode has integral angularly spaced mounting elements 38, Fig. 3, each defined by notches in the periphery of the flange. The elements 38 are bent round to the form 39, Fig. 6, and these tabs are embedded in insulating support posts 35, 36, Fig. 1, when the electrode is used to form part of an electron gun. In an electron gun an immersion lens comprising electrode 12 (which contains a cathode (not shown)) and anode 16, and an einsel lens comprising electrodes 19, 20, 21 are of the re-entrant form described above. Attached to the electrodes 19 and 20 are electrodes 26 and 26a being of the form, and mounted as shown so that the ends 27, 27a of the electrodes project into each end of a re-entrant tubular electrode 31.
Patent GB-669632-A (GB)
Title: Improvements relating to radiation responsive apparatus
IPC: G08B17/12
Filed: 1947-12-31
Abstract: 669,632. Discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 31, 1947 [April 3, 1939], No. 35352/47. Class 39 (i). [Also in Group XL (b)] An apparatus responsive to radiations emitted from a radioactive source comprises a photosensitive counter tube I of the kind described in Specification 591,433, a relay 12 operable when the mean current through the tube rises to a predetermined value due to the increase in the rate of counter impulses, and an indicating device operated by the relay so as to indicate the presence of a radio active source. The apparatus may be used for prospecting for radioactive materials or for recovering lost radium needles in hospitals. A pentode 16 is used to amplify the counter impulses before application to the relay. The relay may be a thyratron. An ammeter 9 indicates the mean amplified current.
Patent GB-282836-A (GB)
Title: Improvements relating to centrifugal pumps or fans
IPC: F04D29/22
Filed: 1927-12-30
Abstract: 282,836. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Fechheimer, C. J.). Dec. 31, 1926, [Convention date]. Impeller blades.-An impeller for a centrifugal fan or pump has blades arranged between supporting members, the blades presenting a curved cross section on planes parallel to the impeller axis. The blade 11, Fig. 2, is curved inwardly so that the stress is compressional, and a tension member 18 is connected between the supporting members 12, 13. With the blade curved outwardly as shown by the blade 21, Fig, 3, the stress is tensile and a compression member 29 is connected between the supporting members. An impeller may be constructed having blades 34, 35, Fig. 4, adjacent blades being curved in opposite directions so that the members 18, 29 are not required. The ends of the blades may be attached to the supporting members or they may be secured by additioned angle pieces. Where the impeller is wide it may have two rings of blades 34, 35 and 34<1>, 35<1>, as shown in Fig. 9. The cross section of the blades in a plane at right angles to the impeller axis may be straight or curved.
Patent GB-958584-A (GB)
Title: Improvements relating to ash trays
Inventor: BRADLEY WILLIAM GEORGE
IPC: A24F19/00
Filed: 1960-10-15
Abstract: 958,584. Ash-trays. IAN HEATH Ltd. Oct. 16, 1961 [Oct. 15, 1960], No. 35403/60. Heading A2M. An ash tray comprising a base 10, a column 28, and an ash tray proper 21 carried by the column is characterised in that both the base 10 and the tray 21 are each provided with attachment elements 16 and 23 and are each releasably connected to the column 28. The attachment elements 16 and 23 are of hollow cylindrical form, slightly tapered, and co-operate with correspondingly shaped ends on the column 28. The column 28 is made of a material which can be slightly deformed by the attachment elements to provide a secure friction fit.
Patent GB-1330546-A (GB)
Title: Benzyl-azoles their production and their use as medicines
Inventor: TIMMLER H
IPC: C07D521/00
Filed: 1971-07-28
Abstract: 1330546 Imidazole and 1,2,4-triazole derivatives BAYER AG 28 July 1971 [29 July 1970] 35403/71 Heading C2C Novel imidazole and 1,2,4-triazole derivatives of the general formula wherein A is an optionally substituted phenyl group or an alkyl or cycloalkyl group, B is a hydrogen atom or an alkyl or cycloalkyl group or an optionally substituted aryl group, "Azole" is a 1-imidazolyl or 1-(1,2,4-triazolyl) group and X and Y are each an alkoxy group or together form an oxygen atom or an -NH-, -N(OH)- or =NNHCONH 2  group, and salts thereof are prepared (a) by reaction of a benzyl halide of the general formula wherein "Hal" is a halogen atom with imidazole or 1,2,4-triazole; (b) by reaction of a benzyl alcohol of the general formula with a sulphoxide of the general formula (Azole) 2 SO; and (c) when X and Y are together a -N(OH)- or =NNH.CONH 2  group, by reaction of the corresponding compound in which X and Y are together an oxygen atom with hydroxylamine or semicarbazide, respectively; followed optionally by salification of the product. Diphenyl-dimethoxymethyl-carbinol is prepared by reaction of dimethoxy-acetic acid methyl ester with phenyl magnesium bromide in ether, followed by decomposition of the resulting complex with ice-water and ammonium chloride solution. Pharmaceutical compositions having antimycotic activity comprise, as active ingredient, an imidazole or 1,2,4-triazole of the first general formula above or a pharmaceutically acceptable salt thereof, in admixture with a pharmaceutically acceptable, solid or liquid diluent or carrier, and may be administered orally, parenterally and locally.
Patent GB-475757-A (GB)
Title: Improvements in and relating to electrolytic condensers and electrolytes therefor
IPC: H01G9/02
Filed: 1936-12-24
Abstract: 475,757. Electrolytic condensers. MALLORY PATENTS HOLDING CO., Ltd. Dec. 24, 1936, No. 35444. Convention date, Jan. 7. Drawings to Specification. [Class 37] An electrolyte is prepared by mixing together mannitol, a solvent and a film-forming agent, and boiling the mixture. The solvent may be a glycol or glycerol or water. The filmforming agent may be any weak acid such as boric, citric, malic, lactic, acetic, formic, phosphoric, or salicylic acid with or without a salt of one of these such as ammonium borate.
Patent GB-1049766-A (GB)
Title: New dyes of the tetrazaporphin series
Inventor: DEHNERT JOHANNES
IPC: C09B47/26
Filed: 1963-09-09
Abstract: The invention comprises tetrazaporphin dyes having the general formula <FORM:1049766/C4-C5/1> in which Pc is a tetrazaporphin nucleus, R is hydrogen or substituted or unsubstituted alkyl radical, X is an aromatic heterocyclic ring containing in the ring an unsubstituted imino group, the heterocyclic ring may be attached by a substituted or unsubstituted aryleneamino, arylene-sulphonylamino,arylene-carbonylamino, arylene-azo, alkylene or arylene radical which may be fused with the heterocycle, m is 0-5, n is 1-4, p is 0-2, the total of m, n and p amounting to between 2 and 8 inclusive The tetrazaporphin is preferably a phthalocyanine which may be metallized, e.g. copper, nickel or cobalt and iron, aluminium, zinc or chromium. The dyes are obtained by reacting a tetrazaporphin sulphonic acid halide, preferably chloride or bromide, which may contain free sulphonic acid radicals, with an aromatic-heterocyclic amine having an unsubstituted imino group in the ring, and hydrolysing unreacted sulphonic acid halide groups, or by reacting a tetrazaporphin sulphonic acid halide which may contain free sulphonic acid groups, in any sequence with an aromatic-heterocyclic amine containing an unsubstituted imino group in its ring, and with ammonia or any primary amine, and hydrolysing unreacted sulphonic acid halide groups.  Aromatic-heterocyclic amines of the above type include, pyrrole, pyrazole, imidazole, triazole and tetrazole derivatives, indole and indazole derivatives are also specified.