baber/WOPTO huggingface dataset:
Patent GB-1092572-A (GB)
Title: Process for the manufacture of 1,2-dichlorethane
IPC: B01J23/72
Filed: 1965-07-14
Abstract: 1,2-Dichloroethane is prepared by reacting ethylene, hydrogen chloride and oxygen in the presence of a catalyst comprising tellurium metal and/or at least one tellurium compound. Specified tellurium compounds are tellurium-(IV)-oxide, tellurium-(IV)-chloride, tellurium-(IV)-oxychloride, tellurium-(II)-oxide, tellurium-(II)-chloride and the tellurium nitrates, tellurites and tellurates.  The tellurium may be supported on an inert carrier or used in the form of a solution. The reaction is preferably effected at 100-350 DEG  C. in the gas phase at pressures not exceeding 10 atm. gauge, optionally in the presence of inert gases.  In the examples, small amounts of vinyl chloride and ethyl chloride are obtained as by-products.
Patent GB-303957-A (GB)
Title: A manure and insect-destroying composition
Filed: 1927-12-08
Abstract: 303,957. Toyer, R. Dec. 8, 1927. Manures.-A manure and insecticide consists of soot, lime, sand, sawdust, coal tar or wood tar oil, and paraffin.
Patent GB-266278-A (GB)
Title: Improvements in dry pipe valve for fire extinguishing sprinklers
IPC: A62C35/64
Filed: 1926-11-26
Abstract: 266,278. Lewis, L. M. Nov. 26, 1926. Sprinkler, automatic. - A dry pipe valve is provided with a draining valve for one of the valve chambers which is automatically opened or closed according as the water clapper is closed or opened, in association with means which automatically prevent reclosing of the water clapper after it has opened, such means being operable from outside the casing for the resetting of the main valve. As shown, the main valve casing 1 housing the independently pivoted and interconnected air and water clappers 15, 25 is extended at 1<a> to provide a cylindrical drainage chamber G' provided with a bushing 52 in which is seated a conical drain valve 57. The bushing has drain holes 55. Pivoted to an extension 60 of the valve 57 by a pin 67 is a lever 61 also pivoted at 63 and having a tappet 68 extending into the path of a nose 69 on the water clapper 25. When the latter closes it depresses the tappet; 68 to open the valve 57, and when it opens the valve 57 closes by its own weight. Pivoted above the valve 57 is a dog 70 having a nose 75. When the water clapper opens it tilts the dog out of its path, but in reclosing, its nose 69 engages over the nose 75 of the dog, preventing complete closing of the water clapper with consequent interruption of the water supply. When it is desired to reset the main valve the drain valve 57 is raised by its stem 59 which extends outside the casing, so that the pivot pin 67 engages wings 82 on the dog 70 and tilts the latter to release the water clapper.
Patent GB-1464185-A (GB)
Title: Process for the production of carbon fibre paper
IPC: H01M4/96
Filed: 1974-07-05
Abstract: 1464185 Carbon fibre paper KUREHA KAGAKU KOGYO KK and TOYO BOSEKI KK 5 July 1974 [10 July 1973] 30036/74 Heading D2B A process for making a carbon fibre paper comprises (a) mixing carbon fibres, kraft pulp having a carbonaceous yield of not more than 10%, synthetic organic fibres having a carbonaceous yield of not less than 20% and a binder in amounts such that the ratio of carbon fibres to kraft pulp is from 40-90% carbon fibres to 60-10% kraft pulp, the ratio of the synthetic organic fibres to the combined weight of carbon fibres and kraft pulp is from 5-20% by wt., and the ratio of the binder to the combined weight of carbon fibres, kraft pulp, and synthetic organic fibres is from 5-50% by wt; (b) shaping the resultant mixture into sheet form; (c) impregnating the sheet with an organic, high M.W. substance; and (d) carbonising the impregnated sheet by baking it at not less than 800C in an inert gas atmosphere. The synthetic organic fibres may be acrylonitrile-based, phenolic, polyimide, or regenerated cellulose fibres. The binder used may be a polyvinyl alcohol fibre or Hibiscus manihot. The formation of the sheet may be effected by a papermaking procedure. The organic high M.W. substance may be a thermosetting resin e.g. a phenolic, epoxy, unsaturated polyester, or polydivinylbenzene resin, a thermoplastic resin e.g. a vinyl chloride, vinylidene chloride, vinylidene fluoride, or acrylonitrile resin, or a bituminous substance such as pitch or tar. The carbon fibre paper may be used for fuel cell electrode manufacture, as a heating element, or as a lining material in corrosion-proof containers.
Patent GB-820065-A (GB)
Title: Improvements relating to cathode structures for electric discharge devices
IPC: H01J1/20
Filed: 1955-10-21
Abstract: 820,065. Thermionic cathode constructions. GENERAL ELECTRIC CO. Oct. 21, 1955 [Oct. 22, 1954], No. 30118/55. Class 39(1). A thermionic cathode structure includes a cup-shaped member of thin metal foil with one or more side pieces extending along its length and the layer of emissive material located adjacent the end face. The cathode may be directly or indirectly heated. In the directly-heated case the foil member has two or more side arms 15, 16, Fig. 3, forming the heater leads ; or a central lead 29, Fig. 6, may be positioned within a foil cup 28. In the indirectly-heated case a similar member 18, Fig. 4, may be used to heat a cup cathode 19 ; or a foil cup 32, Fig. 7, may be backed by an insulating disc 35 on which is deposited (a) a heater film 36 with a central lead 37 or (b) a filamentary heater with one or two leads and of various zig-zag, spiral or cross shapes, Figs. 8, 9 (not shown). Specifications 755,985, 813,829 [Group XXXVI], 820,067 and 820,068 [Group XXXVI] are referred to.
Patent GB-1259993-A (GB)
Title: A driver's cab of a vehicle
Inventor: TARAKANOV EVGENY IVANOVICH
IPC: B60H1/00
Filed: 1969-06-13
Abstract: 1,259,993. Heating and cooling vehicles. CHELYABINSKY TRAKTORNY ZAVOD. 13 June, 1969, No. 30127/69. Heading F4U. A vehicle cab interior is heated or cooled by passing heated air from the engine compartment 11 or cool air from ambient atmosphere through at least one hollow wall member, e.g. a hollow floor 2, front uprights 3, rear uprights 4 and roof 5, so that the cab is heated or cooled solely by heat transfer through the wall member from or to the air.
Patent GB-774983-A (GB)
Title: Improvements in weight-responsive control means for use in pneumatic conveying systems
IPC: B65G53/64
Filed: 1954-02-22
Abstract: 774,983. Weighing-apparatus. FULLER CO. Feb. 22, 1954 [March 11, 1953], No. 30155/53. Divided out of 774,980 [Group XXX]. Class 143. In an automatic feed weigher, wherein fluidized powdered material is fed by pneumatic means from a container to a weighing hopper, hopper-operated means are provided for increasing the air-material ratio to provide a dribble feed when the weight is somewhat below the required value, and for stopping the feed when the correct weight is reached. Material is fluidized in a feeder 75, Fig. 1, and passes, via the distribution valve 80 and an air-material separator 82, to the weighing hopper 83, the latter being suspended from a weighing-scale 84, so that its load moment M1, Fig. 3, is applied to the main beam 210 pivoted at 211. An auxiliary beam 216, pivoted at 217 and carrying a sliding weight 218, exerts a moment M4 about pivot 211 of the same sense, the two moments being counteracted by the moments M2, M3 of the sliding weights 212, 213, adjustable in position for the required hopper load. The beam 210 thus turns when the load is somewhat short of that required, as determined by adjustment of weight 218, so that a mercury switch 220 is closed to energize the solenoid valve 207, Fig. 2, and admit air to the motor 202, which opens the valve 201 in the by-pass tube 200 of the feeder 75. The material-air ratio in the fluidized flow to separator 82 is thus reduced to give an effective dribble feed to hopper 83. When the beam 216 reaches the stop 221, beam 210 turns under the action of moment M1 only, and, on reaching the horizontal, actuates a switch (not shown) to adjust distribution valve 80 to cause return of fluidized material to feeder 75 via the return tube 85.
Patent GB-926221-A (GB)
Title: Treatment of titanium dioxide
Inventor: ARKLESS KENNETH
IPC: C09C1/36
Filed: 1959-09-03
Abstract: The acidic properties of titanium dioxide, produced by the vapour phase oxidation of a titanium tetrahalide or reduced by treating the dioxide in the form of a free-flowing powder with water vapour and boric acid vapour at a temperature below 500 DEG C., the amount of water vapour being sufficient to ensure that substantially all the boric acid is maintained in the vapour phase.  The water vapour may be in the form of steam or it may be contained in a gas.  The boric acid may be introduced by being contained with the water vapour or it may be formed in situ.  The weight of boric acid calculated as B2O3 is preferably 0,005-5% of the weight of titanium dioxide.  The titanium dioxide powder may be agitated during the treatment, or it may be milled for example, in a fluid energy mill, employing steam containing boric acid as the fluid.  To remove residual boric acid after the treatment, the powder may be treated with steam. Specifications 791,657 and 867,479 are referred to.
Patent GB-602064-A (GB)
Title: Improvements in the manufacture of heat insulating bodies from cellulose fibre and plaster of paris
IPC: C04B28/14
Filed: 1945-11-12
Abstract: An easily-flowing fluid mass consisting of water-absorbing cellulose fibre, at least three times by weight as much plaster of Paris, and an amount of water in excess of that required for setting the plaster, this mass having been obtained by adding the plaster to a suspension of the cellulose fibre in water, is poured into a horizontal mould having an outlet for water.  The mass is kept in the mould at least until the setting of the plaster and the solidification of the mass has started, whereupon water not p  bound by the plaster is caused or allowed to evaporate.  The mould may have a polished inner surface.  Semi-circular hollow bodies for use as insulating jackets for steam or hot-water pipes may thus be made. The cellulose fibre may be raw paper pulp or waste paper pulp.
Patent GB-1524438-A (GB)
Title: Photographic processing in presence of image intensifying agent
IPC: G03C7/407
Filed: 1976-07-21
Abstract: 1524438 Intensifying images in silver halide materials FUJI PHOTO FILM CO Ltd 21 July 1976 [23 July 1975] 30255/76 Heading G2C An exposed silver halide material is processed in the presence of a reducing agent and at least one intensifying agent selected from (a) halogenous acids and water soluble salts thereof, (b) chlorine dioxide and (c) peroxides, using a bath comprising at least one nitrogen-containing heterocyclic antifoggant having no mercapto group and at least 1 x 10<SP>-4</SP> gram ions of bromide per litre. The intensifying agent may be chlorous or bromous acid; chlorites or bromites of an alkali metal, alkaline earth metal or ammonium; hydrogen peroxide, a peroxoborate, peroxocarbonate, peroxosilicate, peroxophosphate or a perbenzoic acid salt. The intensifying agent is present in the bath or in the material. The reducing agent when oxidized forms a coloured compound or couples with another compound to form a coloured product. The bromide ions are derived from a salt containing K, Na, Li, Mg, Ca, or NH 4 , KBr being used in the Examples. Specified anti-foggants are (1) compounds containing 2 or 3 nitrogen atoms in a five membered ring, optionally fused to a benzene ring and preferably substituted by methyl, ethyl, nitro, bromo, hydroxy, aralkyl and amino groups, though other substituents are possible; (2) a compound of Formula: - in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are H, alkyl, aralkyl,  alkenyl, aryl, NH 2 , NO 2 , OH or halogen, R<SP>5</SP> is H or alkyl, and R<SP>1</SP> and R<SP>2</SP> may be fused to form a benzene ring; and (3) compounds of Formula:- in which A is optionally substituted alkyl, alkenyl, alkynyl, aralkyl, an alicyclic hydrocarbon residue or optionally substituted aryl, B is a divalent hydrocarbon group which may be substituted or interrupted by a hetero atom e.g. O, Z completes an optionally fused heterocyclic ring and X is an anion other than iodide.  The bath may be an intensifying bath, a developing/intensifying bath or a mono-bath i.e. developing/intensifying/fixing.
Patent GB-249047-A (GB)
Title: Improvements in and connected with heels for footwear
IPC: A43B21/39
Filed: 1925-12-01
Abstract: 249,047. Crookshanks, J. Dec. 1, 1925. Protectors, securing.-A heel pad G, Fig. 2, is grooved at H at the forward end to engage a similarly short grooved plate A, Fig. 1, permanently attached to a heel. The side grooves B are connected by a cross ridge C at the breast of the heel and a ridge or catch D is arranged at the back of the plate A to engage a recess J in the pad. The pad is sprung over the ridge D in attachment. The pad may further be attached to the heel by screws. In a modification the plate A does not reach to the end of the heel, but is countersunk into the pad G, and in a further modification, Figs. 16 and 17, the plate A is notched at M to engage the pad G suitably grooved at N. Alternatively, the plate A, Fig. 21, is entirely concealed within the pad G. The ridge D may be replaced by, a more or less U- shaped clip or clips D, Fig. 22, which engage corresponding recesses in the heel pad.
Patent GB-629744-A (GB)
Title: Improvements in and relating to temperature recording devices
IPC: G01K1/08
Filed: 1947-11-14
Abstract: 629,744. Thermometers. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 14, 1947, No. 30314. Convention date, Nov. 27, 1946. [Class 97 (iii)] The invention relates to temperature-recording systems wherein the temperature of the windings of electrical apparatus immersed in a liquid dielectric is determined by means of a thermal image consisting of a heating element enveloping a specific volume of the dielectric and through which flows a current directly proportional to that flowing through the windings, associated with a thermometric device having remote indicating means. In order to prevent heat losses to the support and to assimulate the conditions of changing viscosity at the thermal image to those obtaining at the windings, the thermal image according to the invention comprising an electric heater 1b and an electric thermometer 1a is mounted with a minimum peripheral clearance 4 in an inner metal sleeve 2, in turn mounted in a heat insulating outer sleeve 15 enclosing a predetermined peripheral space 16 and capable of receiving an influx of convection-circulated dielectric through ports 17, upward surging streams of hot dielectric being prevented from entering the space 16 by means of a shield 18, the shield 18 and sleeve 15 being attached to the lower end of the inner sleeve 2. The inner sleeve 2 is secured to the tank 3 by means of a support member 5 of heat insulating material which abuts with a shoulder 6 of the sleeve 2 and is clamped thereon by a packing washer 7 and a. nut 8 engaging with the threaded portion of the sleeve. The support member 5 is removably attached to the tank by studs 10 and nuts 11 the joint being rendered oil-tight by a washer 12. The assembly is protected by a cover-plate 13, 14 whose side walls 14 are provided with glanded outlets for the electrical leads of the thermal image.
Patent GB-795555-A (GB)
Title: Improvements in or relating to musical devices with plucked teeth
IPC: G10F1/06
Filed: 1955-10-24
Abstract: 795,555. Musical boxes. DUNCAN, T. R. Oct. 24, 1955 [July 22, 1955], No. 30346/55. Class 88 (1). The comb 12 and the plucking disc 15 of a musical box are mounted on separate arms of a V-shaped metal base 14. The comb is stamped from sheet metal and is cast into arm 30 of the base. The stiffly pliable cellulose acetate plucking disc is driven by a crank 16 and a pinion 54 near the apex of the V. The disc is formed with flexible plucking fingers 23 disposed so as to provide inclined surfaces over which the teeth 18 of the comb can ride. The teeth 18 are turned over at 20 to engage the plucking fingers. A shrouded pinion 60 holds the disc so that the plucking fingers firmly pluck the teeth of the comb. The driving pinion 54 is rotatably mounted on the crank 16 and is driven by a freewheel device comprising ears 50 on the crank and shoulders 55 on the pinion. In a modified drive the crank 79, Fig. 12, is normal to the axis of the disc and the freewheel device comprises a coil spring 86 which at its two ends engages the pinion 54A and ears 86 on the crank. The base 14 is formed with a convex base 34, Fig. 8, so that it may be secured in close contact with the soundboard 11.
Patent GB-838711-A (GB)
Title: Improved transparent plastic sheet materials
IPC: B05D7/02
Filed: 1956-10-05
Abstract: Moulded transparent cellulosic articles having an abrasion-resistant coating may be produced by applying to the surface of the article a thin layer of monomeric bis-methacrylate ester of a polyalkylene glycol and subjecting the coated article to polymerizing conditions, e.g. contact with a heated smoothing wheel or ultra-violet irradiation, preferably in an atmosphere of carbon dioxide. Peroxide, percarbonate, or azo compound catalysts may be used, together with metallic salt accelerators.  The cellulosic article may take the form of a filter or lens containing a light polarizing element of molecularly oriented polyvinyl alcohol dyed or stained with a dichroic dye which may contain iodine or an iodide. Specification 540,940 is referred to.ALSO:Transparent sheet material is produced by applying to at least one surface of a cellulosic sheet a thin layer of monomeric bis-methacrylic ester of a polyalkylene glycol and subjecting the coated sheet to polymerizing conditions to produce an abrasion resistant coating.  The polymerization may be effected thermally, by the use of ultraviolet light or a catalyst, e.g. a free radical liberating catalyst such as benzoyl peroxide, diisopropyl dispercarbonate or an azo compound, and an accelerator therefor, e.g. hydrated cobalt nitrate.  A layer of nitrocellulose may be interspersed between the cellulosic sheet and the abrasion resistant layer.  The abrasion resistant layer may contain nitrocellulose.  The abrasion resistant coating may be applied to a light polarizing sheet of molecularly oriented polyvinyl alcohol dyed or stained with a dichroic dye which may contain iodine or iodide which may be provided with a suitable subcoating, e.g. of a mixture of nitrocellulose and polyvinyl alcohol.  Specification 540,940 is referred to.
Patent GB-502920-A (GB)
Title: Improvements in or relating to telephones
IPC: H04M15/30
Filed: 1937-11-06
Abstract: 502,920. Substation apparatus. HESELTON, H., and PARKER, A. J. Nov. 6, 1937, Nos. 30486 and 31694. [Class 40 (iv)] In a substation arrangement in which a calling subscriber is required to actuate his meter by means of a knob 5 before his microphone is effective, a second knob 7 is first actuated in order to render the dial effective and to make the meter operable. Actuation of the knob 7 swings a lever 9 which opens springs 11 normally short-circuiting the dial, closes springs 12 to short-circuit the microphone and moves a catch 14 out of the path of the operating pawl 6 of the meter. A latch 15 on a spring member 16 holds the lever 9 in the displaced position, and is released by a projection 17 on the pawl 6 when the meter is actuated on a completed call or by an arm 18 associated with the switchhook on an uncompleted call. To allow free calls to be set up without metering, further springs 21 in series with the springs 11 are arranged to be opened by an arm 22 on the dial-shaft when the first digit 9 is dialled, being held by a latch 25 which is released by the return of the switchhook. Modifications are referred to in the Provisional Specifications in which the meter is actuated (1) by the switchhook when the receiver is lifted, and (2) by the removal of a lid or cover from the microphone, a cancelling lever being provided in each case for use on incoming and uncompleted calls.
Patent GB-270979-A (GB)
Title: Improvements in "combination faucets for hot and cold water"
IPC: F16K11/056
Filed: 1926-12-04
Abstract: 270,979. Lane, H. G. Dec. 4, 1926. Mixing-valves. - A valve for regulating a hot and cold water supply comprises a rotary plug 6 with an axial outflow bore 5 and a stem extended and bent to form a hollow handle 5A through which the supply is delivered. The plug is formed with a left - hand square screw-thread 12 engaging the casing 9 which is provided with hot and cold inflow branches 11, 10, a mixing chamber 13, seating washer 15 attached to a removable screw plug 14, and a gland 18 with packing 17 and a washer 16. Ports 7, 8, in the plug enable the supplies respectively of hot and cold water to be regulated by rotation of the plug whilst the outflow is cut off when the plug seats on the washer 15, in which position the handle 5A is turned to one side parallel to the end of a bath &c.
Patent GB-464809-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J61/54
Filed: 1935-11-07
Abstract: 464,809. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., and FRANCIS, V. J. Nov. 7, 1935, No. 30811. [Class 39 (i)] A high-pressure metal-vapour discharge device, e.g. a doublewalled mercury lamp, has at least one main thermionic electrode 4, which is heated by the discharge only and consists of, or is coated with, an electronemitting material such as an alkaline earth compound, and has also an auxiliary electrode 7 of refractory metal which is arranged near the main electrode so that some portion, preferably its end, is substantially in the centre of the discharge column whereby it is heated by the discharge, and the tendency of the starting voltage to increase materially during life is abolished or substantially reduced. The electrode 4 consists of a rod of alkaline earth oxide enclosed by a tungsten spiral which may be used to heat the electrode during manufacture. The tungsten electrode 7 is arranged at a distance of 2 mms. from the electrode 4 and comprises a coil 8 to minimize conduction of heat to the seal. Specification 412,031 is referred to.
Patent GB-884794-A (GB)
Title: Control apparatus for remote dictation systems
IPC: G11B15/02
Filed: 1958-09-26
Abstract: 884,794. Centralized dictation systems. DICTAPHONE CORPORATION. Sept. 26, 1958 [Sept. 26, 1957], No. 30830/58. Class 40 (4). When a dictator lifts his handset at his substation 10, Fig. 1, cradle switch 22 connects both windings of privacy relay 28 in series to a D.C. power supply at the central control unit 20 ; operation of privacy relay 28 completes the speech circuit to the dictating machine 64 and causes operation of relay 38 which reverses the polarity of the D.C. power supply so that the operated privacy relay 28 is held on its upper winding but no other privacy relay can be energized. An indicator lamp 80 lights at each substation. By closing switch 78 thedictator shunts resistor 56 and raises the D.C. in the speech circuit to a level sufficient to operate relay 66 which controls the clutch of the dictating machine. In a modification, Fig. 2, the privacy relay 28a is first operated over its lower winding and, on reversal of potential, is held on its upper winding. Fig. 3 shows the use of a privacy relay 28b of the A.C. type, the current through the winding being reversed when the polarity changes. Specification 865,014 is referred to.