baber/WOPTO huggingface dataset:
Patent GB-254575-A (GB)
Title: Improvements in control arrangements for superheaters and re-heaters in water tube boilers
IPC: F22G7/14
Filed: 1925-10-15
Abstract: 254,575. Yarrow, H. E. Oct. 15, 1925. Water-tube boilers provided with superheaters and interstage reheaters have transverse division plates within the furnace casing and uptake, dividing the path for the furnace gases into three sections, each being controlled at the uptake end by a damper. Superheating and reheating elements are accommodated respectively in two sections and steam generating elements in all three sections. At each side of a Yarrow boiler a superheater F or F<1> and a reheater G or G<1> are provided, interposed between the upper and lower banks of steam generating tubes D, E, or D<1>, E<1>, which extend the full length of the furnace. An intermediate space or section occupied by steam generating tubes only is defined by division plates H, I, extending from the combustion chamber to the uptake, their upper parts H<1>, I' starting from the upper end plates of air preheaters and extending to dampers K, L, M, &c., which control the flow of gases through the sections. A single set of dampers extending across the full width of the uptake may replace the three dampers on each side, and the control may be thermostatic. The steam generating tubes enclosed between the plates H. I are arranged in deeper tanks than the corresponding elements in the other sections. A feedwater heater or economizer provided with the requisite division plates may occupy the whole or part of the space shown as taken up by the air preheaters.
Patent GB-260257-A (GB)
IPC: B24B7/24
Filed: 1926-10-18
Abstract: 260,257. Reis, L. von. Oct. 20, 1925, [Convention date]. Flat extended surfaces, surfacing.-In apparatus for polishing glass the polishing-tools are interchangeable, a tool requiring washing or new felts being moved from the glass as a new tool is moved to take its place. The glass e is mounted on a moving or rotating table a and passes beneath a polishing-tool comprising a rotary head b carrying the felts f. The head is carried by an arm c rotatable on a shaft d, another arm on the shaft carrying another, and washed, tool. When the tool in operation is moved from the glass by rotating the arm about the shaft, the second tool moves into the working position. In a modification, Fig. 4, the tools are moved into and out of position along a beam g. In a further modification, the tools are carried by arms swingable about separate shafts.
Patent GB-838078-A (GB)
Title: Thermometer type voltage indicator tube
IPC: H01J31/14
Filed: 1956-08-24
Abstract: 838,078. Cathode-ray tubes STANDARD TELEPHONES & CABLES Ltd. Aug. 24, 1956 [Aug. 26, 1955], No. 25960/56. Class 39(1). In a thermometer-type voltage indicator tube comprising a cathode, a deflecting electrode and an anode coated with luminescent material within a tubular envelope, the magnitude of a voltage applied to the deflecting electrode is indicated by two luminescent strips in such a way that as the control voltage increases, the length of the luminous strips increases and their mutual spacing decreases in a direction parallel to the axis of the tube. As shown, a fluorescent layer 8 is applied on an electrically-conductive, optically transparent layer 9 arranged on the inner wall of the tube. The control electrode 4 consists of two electrically connected rods located in a plane containing the axis of the cathode 1, which is surrounded by, and connected to a space-charge grid 2. The diaphragm 6, which is provided with a slot like aperture to determine the width of the luminous strips, screens the mica discs 12, which support the electrodes, in the discharge space of the picture system. The mica discs are electrically conductive in the " dotted region " 13 to provide electrical connection between the diaphragm 6 and the conductive layer 9. The system formed by the cathode 1, control electrode 3 consisting of two or more electrically connected rods, a part of the grid 2 and the anode 5 forms an amplifier system. If the amplifier system is used for amplifying the indicating voltage, the control electrode 4 and anode 5 are connected together and through a resistance, to the positive voltage of the diaphragm 6, while the voltage to be indicated is connected between the electrode 3 and the cathode. In a modification, Fig. 5 (not shown), the amplifier system is separate from and arranged underneath the picture system. Two adjacent indicator systems may be used for voltage comparison and in this case, four luminous strips, associated in pairs are obtained. A common cathode may be used for these systems.
Patent GB-893735-A (GB)
Title: Improvements in or relating to antihypercholesterolemic amino acids
Filed: 1960-07-26
Abstract: The invention comprises compounds of the formula <FORM:0893735/IV (b)/1> (wherein R1 is alkyl of at most 3 carbon atoms and R2 and R3 are hydrogen or alkyl of at most 3 carbon atoms, at least one of R2 and R3 being hydrogen) and pharmaceutically acceptable salts thereof; and, in particular, DL-21,31-dimethyl-3,5-diiodothyronine and the sodium salt thereof.  They may be prepared by reacting N-acetyl-3,5- 4 - p - toluenesulphonyloxy - phenyl - alanine ethyl ester with pyridine to form the pyridinum tosylate, reacting this crude intermediate with phenol substituted as desired in the 2-, 3-and 5-positions by the groups R1, R2 and R3 and substituted in the 4-position by a methoxy group to give the corresponding 4-(21-R1-31 -R2-41 - methoxy - 51 - R3 - phenoxy) - 3, 5 - dinitro - phenylalanine N-acetyl ethyl ester, reducing the nitro groups of this and replacing them with iodine atoms to give the corresponding 4-(21-R1 -31 - R2 - 41 - methoxy - 51 - R3 - phenoxy) - 3, 5 - diiodo-phenyl-alanine N-acetyl ethyl ester. via the tetrazonium intermediate, and degrading the diiodo compound, preferably by refluxing with hydriodic acid and acetic acid.  Examples are given, and these include the preparation of the individual D- and L-isomers of the DL-compound referred to above.  Salts of the compounds of the invention with inorganic and organic acids as well as with strong bases and alkali metals also are referred to. 2-Isopropyl-4-methoxy-phenol is prepared by alkylating 4-methoxy-phenol with isopropanol in sulphuric acid.
Patent GB-1341497-A (GB)
Title: Process for the production of urea
IPC: C07C273/04
Filed: 1971-04-19
Abstract: 1341497 Urea SNAM PROGETTI SpA 19 April 1971 [2 April 1970] 25977/71 Heading C2C A process for producing urea comprises: feeding carbon dioxide and ammonia to a synthesis reactor maintained at an elevated pressure and temperature, the ammonia being in excess with respect to the stoichiometricallyrequired value; reacting the carbon dioxide and ammonia in the reactor to produce urea contaminated with ammonium carbamate; conveying the liquid stream coming from the reactor and comprising urea, water, ammonium carbamate and ammonia to an ammonium carbamate decomposer operating at the same or substantially the same pressure as that in the reactor and at an elevated temperature; subjecting the ammonium carbamate to decomposition in the decomposer, by means of a countercurrent gaseous stream; removing from the lower region of the decomposer a liquid stream consisting essentially of urea, water and dissolved ammonia; subjecting a gaseous stream coming from the upper region of the decomposer and comprising NH 3 , CO 2  and water to condensation in a condenser operating at a pressure which is the same or substantially the same as the pressure in the reactor and at an elevated temperature ; recycling the condensed decomposition products from the condenser to the reactor; and introducing into the bottom of the decomposer, into the condenser or into the gaseous stream at any point between the decomposer and the condenser, at least one of oxygen, a gaseous mixture containing oxygen and a substance which is capable under the operating conditions of developing oxygen, as a corrosion inhibitor.
Patent GB-912293-A (GB)
Title: Improvements relating to jet propulsion engine noise suppressors
IPC: F02K1/40
Filed: 1959-07-29
Abstract: 912,293. Jet-propulsion nozzles. UNITED AIRCRAFT CORPORATION. July 29, 1959 [Aug. 1, 1958], No. 26074/59. Class 110 (3). In an aircraft having a jet-propulsion engine which produces a high-velocity non-pulsating propulsive gas flow, a jet noise suppressor comprises a duct having an inlet arranged to receive the propulsive gases from the engine and a discharge opening for discharging the gases to atmosphere, the duct being convergent immediately adjacent the discharge opening in a substantially horizontal plane and divergent immediately adjacent the opening in a substantially vertical plane. The gases from a gas turbine jet propulsion engine, Fig. 1, pass through a noise suppressor comprising a duct 20 having a circular inlet 28 and a discharge opening 22 formed as an elongated slot with its major axis vertical and in line with a strut supporting the engine from the aircraft wing. The opening 22 is defined by converging vertical side walls 50, 52 and by diverging top and bottom walls 54, 56. The effect of the divergence of the top and bottom walls may be increased by movable vanes mounted on a fixed vane located in the nozzle outlet. The discharge duct may be provided with stiffening vanes adjacent its discharge. Specifications 765,021, 777,572 and 879,481 are referred to.
Patent GB-1175241-A (GB)
Title: Scourer.
Inventor: HOCHDORF GIDON
IPC: A47L17/08
Filed: 1967-06-06
Abstract: 1,175,241. Scourers. G. HOCHDORF. 6 June, 1967 [6 March, 1967], No. 26150/67. Headings A4F and A4R. A scouring pad comprises two similar metal wool portions 1, 2 ioined directly together around at least the major part of their peripheries and enclosing a core 3 of spongy material. The core may be of natural or synthetic sponge and the metal wool may be of steel and/or aluminium. The scourer may be impregnated with soap and/or detergent and/or an opening may be provided between the portions 1, 2 through which opening soap and/or detergent may be supplied to the core 3.
Patent GB-518327-A (GB)
Title: Improvements in and relating to tins for baking bread, cakes and the like
IPC: A21B3/13
Filed: 1938-09-08
Abstract: 518,327. Baking tins. CO - OPERATIVE WHOLESALE SOCIETY,. Ltd., and CONROY, M. J. Sept. 18, 1938, No. 26206. [Class 66] To prevent jamming of tins when nested and to afford spacing means between adjacent tins in the oven, hollow projecting pieces 2 preferably of deep U-section, each comprising two elements, disposed at angles and formed with attachment flanges 4, are secured to the corners of the tins.
Patent GB-407700-A (GB)
Title: Improvements in electrolytic apparatus
IPC: A61L2/02
Filed: 1932-09-21
Abstract: 407,700. Electrolysis. EVANS, D. J., Glen Cairn, Shipbourne Road, Tonbridge, Kent. Sept. 21, 1932, No. 26249. [Class 41.] An apparatus for producing antiseptic solutions comprises a brine reservoir b connected by a pipe d and manifold f to electrolytic cells a from which the liquid passes to a manifold g and delivery pipe h. The pipe d contains a cock e mechanically coupled with a switch k for simultaneous operation. The whole apparatus is mounted on a single panel c. The manifolds f, g and the pipe d are preferably of ebonite and are provided with detachable unions. The cells are connected electrically in series. A lamp m is provided to indicate when current is flowing. The cells may be of the kind described in Specification 400,247. Specifications 6497/94, 8270/09, and 28277/10, [all in Class 41], also are referred to.
Patent GB-384381-A (GB)
Title: Improvements in or relating to forming patterns on rubber goods including tyres
IPC: B29D30/68
Filed: 1931-09-19
Abstract: 384,381. Renewing tyre treads &c. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and FELLOWES, F., Fort Dunlop, Birmingham. Sept. 19, 1931, No. 26270. [Class 87 (ii).] Patterns are formed on rubber articles by an internally heated hand-tool. As applied to the forming or renewing of grooves in tyre treads, the tool comprises hollow wedge-shaped portions 2 mounted on a tube 6 through which passes a gas supply. A handle 7 is fitted, and air may be supplied through perforations 10 in shouldered portions 9. The tool may be electrically heated. Rollers or gauges may be mounted on the tool to guide it over the work.
Patent GB-186621-A (GB)
Title: Apparatus for the automatic switching on and off of mercury vapour rectifiers
IPC: H01J13/42
Filed: 1922-09-29
Abstract: 186,621. Haighton, C. A. A. Oct. 1, 1921, [Convention date]. Vapour apparatus, arrangements of. -A mercury-vapour rectifier 3 is started automatically b y means of a solenoid 4 whenever any consuming device is switched in on the direct current side 9. The solenoid 4 is energized with alternating current from the secondary winding of the transformer 1, the core 5 connected to the rectifier is then attracted, and the rectifier is tilted in order to create the starting arc. When the rectifier is supplying continuous current, another solenoid 8 opens a swith 6 against the action of a spring 7 in order to break the circuit of the solenoid 4.
Patent GB-171249-A (GB)
Title: Improvements in wheels for vehicles
IPC: B60B1/10
Filed: 1920-09-14
Abstract: 171,249. Haddan, R., (International Steel Wheel Co. Inc.). Sept. 14, 1920. Addition to 159,777. Disc wheels.-In a wheel of the type described in the parent Specification, the parts of the periphery between the spokes of the discs are removed, leaving lugs 21, Fig. 1, by which the corresponding spokes of each disc are joined. The adjustable nut 4, Fig. 2, is provided with a radial flange 40 embraced by a collar 5 secured to the disc 20. The nut 4 may have a removable cap 6. The flange 3 may be detachable from the hub.
Patent GB-937686-A (GB)
Title: Aerials
Inventor: TOMLIN FREDERICK JOHN
IPC: H01Q5/48
Filed: 1961-07-20
Abstract: 937,686. Aerials. ANTIFERENCE Ltd. July 19, 1962 [July 20, 1961], No. 26408/61. Class 40 (7). An aerial assembly for use at a given frequency (100 Mc/s.) and in a limited frequency band extending above and below the given frequency (96 - 104 Mc/s.), comprises a first dipole 11 of such length as to be inductively reactive at the given frequency, and a second dipole 13 disposed adjacent and parallel to the first dipole and of such length as to be capacitively reactive at the given frequency, either one of the dipoles but preferably the one which is inductively reactive being split at its centre to provide a feed point 12 (the other dipole then acting as a linear passive element). The lengths RT1, RT2 of the dipoles 11, 13 and the spacing S. between them are chosen so that at the given frequency the impedance of the assembly is purely resistive and is substantially different from the resonant impedance of a corresponding simple centre fed ¢ # dipole of length lD. To achieve this criteria the length of the dipole 11 is greater than ¢#, the length of the dipole 13 is less than ¢ # and the spacing S between them is <SP>1</SP>/ 40  # or <SP>1</SP>/ 60  # or <SP>1</SP>/ 80  #. The resonant impedance at the feed-point is preferably 150 Q. The Specification shows by mathematical tables and graphs (Figs. 2-4, not shown) that the standing wave ratio of a dipole assembly according to the invention digresses less from unity over the given frequency band than that of a corresponding half wavelength dipole. The Specification also discloses that the resonant impedance of the dipole assembly is less affected by the addition of reflectors and directors than is the corresponding dipoles. An assembly comprising two directors and a reflector is disclosed (Figs. 5 and 6, not shown), the dipoles of the invention being arranged in one vertical plane and the passive elements being arranged in the vertical plane perpendicular thereto.
Patent GB-1518910-A (GB)
Title: Dye composition in form of oil-in-water emulsion
IPC: D06P1/92
Filed: 1976-06-24
Abstract: 1518910 Oil-in-water dyestuff emulsions NIPPON KAYAKU KK 24 June 1976 [24 June 1975] 26408/76 Heading D1B Oil-in-water dyestuff compositions comprise (a) at least one water-insoluble dye dispersed with a dispersing agent in an oil phase formed of at least one oil selected from hydrocarbons and halogenated hydrocarbons (b) at least one thickener and (c) water. The oils employed are of B.P. 50‹ to 250‹C and are water-immiscible. The preparations are made by dispersing the waterinsoluble dye in the oil phase selected from hydrocarbons and halogenated hydrocarbons in the presence of a dispersing agent followed by mixing the resulting dye dispersion with thickener and water. A preferred composition comprises 30-70% by weight of aqueous thickener, 0-70% of water, 0.05- 50% of oil, 0.01-8% of dye and 0.0005- 8% of a water insoluble dispersing agent.
Patent GB-1097876-A (GB)
Title: Bead cores for pneumatic tyres
IPC: B60C15/04
Filed: 1965-06-22
Abstract: Bead cores for a pneumatic tyre are formed of glass strands preferably either bonded together with a synthetic resin or twisted into yarns or cords.  In an example, an assembly of nine strands of glass, 800 decitex, held together by (a) a latex adhesive including resorcinol/formaldehyde prepolymer or (b) a mixture containing rubber, acrylonitrile copolymers or other plastics, is wound around a cylindrical former and the cylinder so formed is cut into appropriate lengths to form bead cores.
Patent GB-425995-A (GB)
Title: Improvements in or relating to chairs and the like
IPC: A47C1/023
Filed: 1933-09-26
Abstract: 425,995. Sliding seats; seat adjustments. BERKOVI, L., 5, Dean Street, Soho, London. Sept. 26, 1933, Nos. 26455/33 and 29941/34. [Class 52 (ii)] A seat is slidably mounted on a frame 4 fitted with guides 16 cooperating with others 15 on the seat, projecting pins or rollers 17 on these latter guides move in slots in the fixed guides to prevent vertical displacement and the seat is operated by levers or by a rack and pinion mechanism 20.
Patent GB-1217454-A (GB)
Title: Coupling assembly
IPC: F16C5/00
Filed: 1969-05-23
Abstract: 1,217,454. Eccentric pivot coupling. ING- ERSOLL-RAND CO. 19 May, 1969 [27 June, 1968], No. 26509/69. Heading E2F. [Also in Division F2] A coupling assembly for relatively rotatable members (e.g. the piston and rod of an I.C. engine or the cross head and connecting rod of a compressor) comprises first and second members connected by a pin which is provided with first and second arcuate surface portions 28, 29 eccentric to each other and having differing radii of curvature. In operation, the pin contacts first and second bearing surfaces 16, 20 alternately to facilitate lubrication. As shown for the cross head in a horizontal-cylinder compressor, the pin consists of two parts clamped to the connecting rod 10 for oscillation therewith, by means of bolts 32, 33. When in the no-load position, the axes of the pin portions 28, 29 are co-axial with bearing surfaces 16, 20. When a load is applied from the left in Figs. 6 and 7, the pin engages the lefthand portions of the bearing surfaces 16, 20 so that, when the rod swings above the horizontal the pin portion 28 is in contact with the bearing surface 16 at 44 while the pin portion 29 is lifted clear at 47 to allow access of lubricating fluid. When the rod swings below the horizontal, Figs. 8 and 9 (not shown), the pin portion 29 is in contact with the bearing surface 20 at (45) while the bearing surface 16 is lifted clear at (46). At the horizontal position of the rod both the pin portions are in contact with the lefthand portions of the bearing surfaces Fig. 10 (not shown). When the load is from the right, the bearings move to the left so that the pin engages the righthand portions of the bearing surfaces Fig. 11 (not shown). Lubricating fluid is fed through ducts 38 which are supplied from ducts in the pin and rod. It is stated that the coupling assembly can withstand reversing loads as well as non-reversing loads in either direction.
Patent GB-1468857-A (GB)
Title: Edge protection or sealing strip
IPC: B60J10/33
Filed: 1974-06-14
Abstract: 1468857 Edging strip SCHLEGEL GmbH 14 June 1974 [22 June 1973] 26514/74 Heading B5K [Also in Division E1] An edge protecting or sealing strip of U-shape cross-section comprises a plastics covering with a metal insert 1 and retaining projections 4, the visible portion of the covering having a thickness measured from the insert of at least 1À2 mm. The insert is a wire of zig-zag form with adjacent loops linked by textile threads 3, or may be a metal strip punched with slots. The lips 4 may be of a softer material than the rest of the covering. The visible arm of the strip may be curved.
Patent GB-158499-A (GB)
Title: Improvements in or relating to continuous kilns of the tunnel type
IPC: F27B9/02
Filed: 1920-09-16
Abstract: 158,499. Metcalfe, R. C. Sept. 16, 1920. Tunnel kilns.-A continuous tunnel kiln is made in several sections meeting at an angle, in order to economize space, and turntables are provided at the junctions. The kiln shown comprises a firing zone A, and heating up sections A', A<2>, A<3>, the sections A, A<1> being parallel to the section A<3> and the section A transverse thereto. Cars carrying the goods to be treated are entered into the zone A<3> by a belt or chain T', and drawn by a bar P A having lugs and operated bv a lever P<3> on to the turn-table K A. This has rollers K<1> running on a track K<2>, and a gear wheel K<3> meshed with a worm L<1>. The table is given a quarter turn, and the car is then moved by a motor-operated pusher OA into the section A<2>, from which a similar turn-table K, moving bar P and pusher 0 transfers it to the next section A<1>. Notches K<4> and locking bars M are provided to lock the tables in the operative positions. The firing zone is heated in known manner by side combustion chambers E having hollow walls for the circulation of convection heating currents.
Patent GB-462988-A (GB)
Title: Improvements in cellulose acetate compositions
Filed: 1935-09-26
Abstract: Cellulose acetate compositions suitable for use in the production of transparent or translucent sheets or films comprise an addition of a urea-formaldehyde condensation product in the proportion of about one-half of one up to seven or eight per cent calculated on the weight of the cellulose acetate.  Plasticizers such as phenyl, butyl, or tri-cresyl phosphate, butyl phthalate, or a vinyl acetate, may be added to the composition.  In an example, a composition is made by mixing a urea-formaldehyde condensation product, vinyl acetate, tri-phenyl phosphate, gum acacia varnish, and cellulose acetate.  The composition is dissolved in acetone, methyl acetate or other solvent and formed into films or sheets.  The films are of increased tenacity, pliability, and fire resistant properties.
Patent GB-963740-A (GB)
Title: Oxygen liberating compositions
IPC: A61K9/00
Filed: 1962-08-02
Abstract: A composition which upon burning liberates oxygen comprises a consolidated body containing 70-90% by weight of an alkali metal chlorate, the remainder comprising barium peroxide and steel wool clippings.  The steel wool clippings may be steel wool having a diameter of 0.002-0.01 inch cut into 1/16 inch- 3/8 inch length clippings and the chlorate used may be lithium, sodium or potassium chlorate. The composition preferably contains 83-89% by weight of sodium chlorate, 4-7% of steel wool clippings, 2-6% of barium peroxide and 0-4% of hydrogen reduced iron powder. Chlorate candles may be produced by mixing the constituents with water, pressing the composition into a mould and drying or by melting the alkali metal chlorate, dispersing the other materials uniformly through the melt and casting the resultant suspension into a mould.  The candle may be disposed in a closed canister provided with an oxygen outlet and means for igniting the candle.