baber/WOPTO huggingface dataset:
Patent GB-867085-A (GB)
Title: Improvements in meter prepayment mechanism
Inventor: BARLOW GEOFFREY
IPC: G07F15/08
Filed: 1959-02-13
Abstract: 867,085. Prepayment mechanisms for meters. METERS Ltd. Feb. 9, 1960 [Feb. 13, 1959], No. 5031/59. Class 27. A two-tariff prepayment mechanism for gas or like commodity meters has two coin slots a, b for different values of coins, the quantity of commodity delivered for either coin being the same, and an obstructing lever c initially blocks the slot a for the lower value coin until, after a predetermined number of bperations of the rotary coin holder, the lever is moved to block the slot for the higher value coin. Each insertion of a coin displaces a slide o and an upper pin p on the slide rotates a ratchet wheel n through half a tooth space; when the coin is released from the holder, the slide returns and the lower pin q moves the wheel n through a further half tooth space. The ratchet wheel has a disc g secured to it and, after a number of coin insertions, the disc has been indexed until a slot h comes opposite a pin f on the lever c. The lever can then be moved about its pivot d by a spring e so that the slot b is obstructed and the slot a opened. Initially, the official collector resets the disc g and wheel n so that the pin f is behind the disc and a pointer i on the lever c is opposite any desired marking on the disc. The pin u and spring-loaded lever t are displaced by the inserted coin and assist its discharge when the coin holder is rotated to the lower position.
Patent GB-1493172-A (GB)
Title: Simultaneous removal of hydrogen chloride and sulphur dioxide from gases particularly air containing same
IPC: B01D53/50
Filed: 1975-02-06
Abstract: 1493172 Removing sulphur dioxide and hydrogen chloride from gas mixture BASF AG 6 Feb 1975 [7 Feb 1974] 5051/75 Heading BIL The simultaneous removal of sulphur dioxide and hydrogen chloride from a gaseous mixture comprised thereof, e.g. air, is effected by contacting said mixture in a form having a relative humidity of from 30 to 100% with a fixed absorbent comprising activated charcoal at 0-100‹C and 1-50 atmospheres gauge. The process is particularly applicable to the purification of air used in preparing synthesis gas for use in ammonia production.
Patent GB-668958-A (GB)
Title: Apparatus for tepid permanent waving of the hair
IPC: A45D4/12
Filed: 1950-02-28
Abstract: 668,958. Hair-waving appliances. MULLER, A. Feb. 28, 1950. [March 19, 1949] No. 5092/50. Class 131. In apparatus for tepid permanent waving, a curler of normal construction is surrounded by a heating sachet and gripped by a contact clip, the sachet comprising a sheet of blotting paper saturated with an electrolyte and disposed between two metal sheets constituting electrodes and the contact clip comprising two arms of insulating material each of which is provided with a pair of electrical connecting terminals with contact members making contact with the electrodes, a signalling lamp being connected to one pair of terminals of the clip. As shown, the curler 1 comprises a rubber strip 2 through which a lock of hair 4 is passed before being wound on the curler, enclosed in the sachet and gripped by the spring-urged arms 13, 14 of the clip. The sachet comprises a folded sheet 6 of blotting paper, saturated with waving solution, which is also an electrolyte, and having the sides partially covered by sheets of tin or aluminium forming the anode 8 and cathode 9 of a heating element. The gaps between the edges of the anode and cathode and the blotting paper ensure that the electric current from the terminals, 18, 19, 20, 21 on the contact clip passes through the electrolyte to heat the hair to a temperature of 96-98‹C. When the electrolyte dries out the signalling lamp 17 goes out, informing the operator that waving of the lock is completed. In use, one or two clips are employed, the heating time of a clip being about one minute in which the next lock to be heated is prepared.
Patent GB-286867-A (GB)
Title: Improvements in and relating to pistons for fluid pressure engines
IPC: F02F3/00
Filed: 1927-02-23
Abstract: 286,867. Talbot, E. Feb. 23, 1927. Pistons.-In a piston having a gap between the head 4 and the skirt 2, an oil-scraper ring 9 is located in the gap. The inward movement of the ring may be limited by shoulders on t h e gudgeon-pin bosses, or by an axial flange 12 on one or both of the opposed faces of the head and skirt. A radial flange 14 may be formed on the head or skirt, or both, which may have a limiting flange 12. In a piston having a separate sheet-metal skirt 15, the edge of the skirt is formed with a radial flange 18 at the gap. The head may be formed with a shoulder for limiting the movement of the ring 9 and the shoulder may carry a flange 20 forming part of the lower side of the groove. The rings 9 may be made as described in Specifications 233,369 and 256,083. Specifications 262,665 and 269,244 also are referred to.
Patent GB-435016-A (GB)
Title: Improvements in or relating to store front construction
IPC: E06B1/38
Filed: 1935-02-18
Abstract: 435,016. Glazing for shop fronts; window frames. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Pittsburgh Plate Glass Co. ; 2200, Grant Building, Pittsburg, U.S.A.) Feb. 18, 1935, No. 5206. [Class 20 (iii)] The glass of a store front is secured in its frame against a flanged sash member 11 having a base 12 by a right-angled metal strip 16 having a double-bent projecting edge engaging a groove 14 in the member 11 and secured by screws 5. A cover-strip 7 is also provided engaging an outward flange 19 on the glassclamping member of the strip 16 and having an inwardly bent raised outer edge resiliently held between the strip 16 and the base 12 of the sash member. The glass edges are separated from the screws by strips bent from plates 24 held between bevelled flanges 26, 27 of the sash member.
Patent GB-715915-A (GB)
Title: Improvements in or relating to the production of shaped products from acrylonitrile polymerization products
IPC: D01F6/18
Filed: 1952-02-28
Abstract: 715,915. Artificial filaments, films &c. AMERICAN CYANAMID CO. Feb. 28, 1952 [March 8, 1951], No. 5261/52. Addition to 672,775. Drawings to Specification. Class 2 (2) The process of the parent Specification for making filaments, films, and other shaped products from a solution of an acrylonitrile  polymerization product is modified in that the water-coagulable solution comprises an acrylonitrile polymerization product dissolved in a concentrated aqueous solution of a water-soluble thiocyanate, and the aqueous coagulant, which is used at a temperature not exceeding +10‹ C., is an aqueous solution containing 3-25 per cent. by weight of the same water-soluble thiocyanate. The polymer may be a simple acrylonitrile polymer or it may be a copolymer containing a major proportion by weight of combined acrylonitrile and it may have a molecular weight of 15,000-300,000. The polymer is preferably dissolved in an aqueous solution containing above 40 per cent. of thiocyanate, the upper limit being that of a saturated solution of the thiocyanate. Sodium and calcium thiocyanate solutions are preferred, though other inorganic or organic thiocyanates may be used provided that 'they give highly hydrated ions in aqueous solution. In the production of filaments, the spinning solution may be brought to a temperature of 60-100‹ C. immediately prior to extrusion. The temperature of the coagulating bath may be 0‹ C. or lower, and preferably, the liquid is cooled to the desired temperature and circulated through the coagulating vessel. After leaving the coagulating bath, the filaments may be passed through a washing tank containing hot or cold water and they may then be stretched while passing through a trough containing hot water. In an example, a solution containing about 9 per cent. of a copolymer of acrylonitrile and methyl acrylate in an aqueous solution containing about 49 per cent. of sodium thiocyanate is prepared in an atmosphere of nitrogen and then stored under vacuum until bubble-free. The solution is extruded into an aqueous solution containing 10 per cent. of sodium thiocyanate, the spinning. solution being heated to 75-80‹ C., and the coagulating bath being maintained at -2‹ C. The filaments obtained are passed over and advanced along a pair of mutually inclined rolls while being washed with water at 0‹ C. The filaments are then stretched in water at 99‹ C. and treated with a solution of an anti-static finishing agent, e.g. the diguanidinium salt of octadecyl sulpho-succinate. The filaments are dried and then submitted to a heat-setting treatment while free to contract. Other specified thiocyanates which may be used in the spinning solution and coagulating bath are those of other alkali metals, and of strontium, barium, zinc, tin, lead, guanidine, and substitution derivatives of guanidine.
Patent GB-957105-A (GB)
Title: Elastomeric copolymers and process for preparing them
IPC: C08F232/06
Filed: 1962-02-12
Abstract: High molecular weight linear amorphous copolymers of cyclopentadiene or an alkylcyclo-pentadiene with ethylene and at least one aliphatic alpha-olefine having the general formula R-CH=CH2 in which R is an alkyl group containing 1 to 6 carbon atoms are prepared using a catalyst system which is soluble in the hydro-carbons which can be used as copolymerization media, said catalyst system being prepared from (a) dialkyl aluminium monohalides, monoalkyl aluminium dihalides, alkyl beryllium halides or mixtures thereof, and (b) vanadium compounds soluble in hydrocarbons or insoluble but capable of giving soluble compounds by reaction with the aluminium or beryllium compound. Hydrocarbon-soluble vanadium compounds mentioned are vanadium triacetylacetonate, vanadyl diacetylacetonate, vanadyl halogen-acetylacetonates (VOAc2X and VOAcX2), vanadyl trialkoxides, vanadyl halogen alkoxides, vanadium complexes with diketones, ketoesters, aminoalcohols, aminoaldehydes, oxyaldehydes and complexes of vanadium halides with Lewis bases e.g. ethers, amines, phosphines, arsines and stibines. Insoluble vanadium compounds mentioned are the salts of organic acids or oxyacids of trivalent or tetravalent vanadium. The polymerization can be carried out at temperatures of -80 DEG C to 125 DEG C. When catalysts prepared from vanadium triacetylacetonate, vanadyl trialkoxides or vanadyl halogen oxides are used, the polymerization is preferably carried out in the presence of ethers or thioethers containing at least one branched alkyl group, aromatic, or cycloaliphatic nucleus, as complexing agent. Aluminium catalyst components mentioned are diethyl aluminium monochloride and diethyl aluminium monofluoride. The copolymerization which may be continuous can be carried out in inert hydrocarbon solvents e.g. butane, pentane, benzene, heptane, toluene, xylene or mixtures thereof, or it may be carried out in the absence of an inert solvent using the monomers themselves in the liquid state.  In the examples, ethylene, propylene and cyclopentadiene are copolymerized, the catalyst used being diethyl aluminium monochloride with vanadyl diacetylacetonate, vanadium triacetyl acetonate or vanadium triacetylacetonate plus diisopropylether. In each case the reaction is stopped by adding methanol containing phenyl-beta-naphthylamine as antioxidant, and the product purified by successive treatments with aqueous hydrochloric acid and water under nitrogen and then coagulated by pouring into an acetonemethanol mixture.  The copolymers may be vulcanized by heating with sulphur, zinc oxide, lauric acid, mercaptobenzothiazol, phenyl-b -naphthylamine and tetramethyl-thiurandisulphide. Specifications 858,067 and 957,103 are referred to.
Patent GB-101066-A (GB)
Title: Improvements in or relating to Doors and Fittings for Show-cases, Cabinets and the like.
IPC: E06B3/50
Filed: 1916-04-12
Abstract: 101,066. Barnes, H. N., and Pollard & Co., E. April 12, 1916. Cabinets and show cases. -Doors for cabinets, show cases, &c. are mounted so that, when opened, they are guided by rails to take up a position within the cabinets at right-angles to their position when closed. The doors a are mounted on castor bearings b which engage tracks d, d<1> arranged as shown at the top and bottom of the door. The track d<1> is curved inwardly at h to allow the edge of the door to clear the framework i when turning. The castor bearings are mounted adjustably in brackets n on the door frames.
Patent GB-778101-A (GB)
Title: Stoppers for bottles and other containers
Inventor: FOX FRANK
IPC: B65D39/16
Filed: 1955-02-24
Abstract: 778,101. Making bottle stoppers. ROBINSON BROS. CORK GROWERS, Ltd. Jan. 16, 1956 [Feb. 24. 1955], No. 5511/55. Class 125(3). In a process for making stoppers a metal cap 1 is partly filled with synthetic resin or a bitumastic or vulcanite based composition 2 and while the composition is in a heated liquid or plastic state a cork portion 3 is placed upright in each cap, the periphery of each cap being then clamped inwardly into engagement with the cork. Each cap may have a protruberance 4, Fig. 1, or the cork may have a projection 5, Fig. 3, to locate the cap and cork in correct relative positions.
Patent GB-469915-A (GB)
Title: Improvements in variable electric condensers
IPC: H01G5/38
Filed: 1936-02-24
Abstract: 469,915. Condensers. HEYNE, W. O., PACKMAN, P. J., and PLESSEY CO., Ltd. Feb. 24, 1936, No. 5541. [Class 37] A variable condenser comprises end plates 16 rigidly connected by two or more lengthwise bars 12.. 15, the stator 26 being supported on one or more of the bars by means of small independent pillars 31 of ceramic or other insulating material each secured at one end to a metallic part of the stator so as to extend outwardly away from the stator and secured at the outer end to a lengthwise bar of the frame as in sockets in metal members 33.
Patent GB-214781-A (GB)
Title: Improvements in or relating to cocks and valves
IPC: F16K35/02
Filed: 1923-02-26
Abstract: 214,781. Gas Light & Coke Co., and Larkin, F. S. Feb. 26, 1923. Locking catches.- The body a' of a gas tap is recessed to receive a sliding sleeve c which is pressed outwards by a spring d so that a notch in it engages with the thump-piece b of the tap in its "off" position. The plug b and thumbpiece b<1> are in one piece. The sleeve c must be pressed inwards to release the part b<1> so that the tap may be turned on. The compression of the spring has no tendency to press the plug toward or away from its seating.
Patent GB-795990-A (GB)
Title: Production of polyenic aldehydes
Filed: 1956-02-23
Abstract: Polyenic aldehydes are obtained by reacting water with alkoxy-alkanes having a straight chain of at least six carbon atoms and 1,1,3,5-alkoxy substituents, in the vapour phase at an elevated temperature in the presence of a catalyst comprising alumina treated with an aliphatic carboxylic acid containing up to six carbon atoms in the molecule.  All four of the alkoxy groups may be the same or different.  The 1,1,3,5-tetra-alkoxy-alkanes may contain substituents such as alkyl or alkoxyalkyl radicals.  Preferably an excess of water is used and it is desirable that it should be supplied in the form of superheated steam.  Suitable alumina materials are activated alumina, or activated alumina on which a small amount of a promoter such as palladium or platinum has been deposited.  The preferred acid for treating the alumina is acetic acid and the treatment may be carried out by passing a stream of the aliphatic acid vapour, diluted, if desired, with water vapour, over the alumina, by soaking the alumina in the acid in liquid glacial or aqueous form or by incorporating the acid into the stream of reactants passing over the alumina.  The preferred temperature range for carrying out the process is 160-300 DEG  C.  The desired polyenic aldehyde may be removed from the liquefied reaction products by distillation and, if desired, may be hydrogenated to produce alcohols.  In the examples: (a) a mixture of 1,1,3,5-tetramethoxy-hexane, steam and acetic acid in the vapour form is continuously passed over activated alumina carrying palladium on its surface and the product is fractionally distilled to give 2,4-hexadienal; (b) a mixture of 1,1,3,5-tetramethoxy-hexane and steam is passed over activated alumina previously treated with water vapour containing acetic acid to give 2,4-hexadienal; (c) the process of (a) is repeated using 1,1,3,5-tetramethoxyoctane as starting material to give 2,4-octadienal which is hydrogenated in the presence of Raney nickel to give 1-octanol; and (d) the process of (b) is repeated using 1,1,3,5,7-pentamethoxyoctane as starting material to give 2,4,6-octatrienal.
Patent GB-951512-A (GB)
Title: Electric circuit breakers having arc-quenching chambers
IPC: H01H9/36
Filed: 1962-02-14
Abstract: 951,512. Arc rupturing in switches. LICENTIA PATENT - VERVVALTiJNGS - G.m.b.H. Feb. 14, 1962 [Feb. 20, 1961], No. 5654/62. Heading H2B. In an arc-chute having spaced conducing plates arranged transversely to the arc, the plates have one or more holes shaped or arranged so that the area of the hole or holes decreases in the direction of travel of the arc towards the exhaust end of the chute. This is stated to facilitate the entry of the arc into the plates and its rooting on to the plates. The holes 3 may be equal in size and diminish in number towards the exhaust end of the chute, Fig. 3, or may diminish in size towards the exhaust end of the chute, Fig. 5. They may be circular as shown or triangular in shape, Fig. 6 (not shown), or a single triangular hole may be provided, Fig. 7 (not shown). In Fig. 8, the plates are bent into a U-shape to form limbs 4 having the holes 3 and shorter limbs 5. When the arc roots on to the limbs 5, the current flowing through the bases 6 of the U-shaped plates sets up a magnetic field which acts to prevent the arc being blown out of the arcchute.
Patent GB-330934-A (GB)
Title: Improved process and apparatus for the production of hydrocarbons of low boiling point from coal, oil or other materials
IPC: C10G11/02
Filed: 1929-02-20
Abstract: 330,934. Waite, H. S. Feb. 20, 1929. Hydrocarbons, cracking. - The percentage of hydrocarbons contained in the condensate obtained by the distillation of carbonaceous materials is increased by passing the vapours and gases after issuing from the distillation chamber into contact with a heated layer of coke fed through a chamber 1 by means of inclined screen conveyers 9, 10. The coke is fed to the chamber 1 by a conveyor 7 heated by a jacket 7<1> and star wheel 8 and is removed by a conveyor 12, while the gases and vapours enter through a passage 2 and leave by a passage 3. In a modification the screens are arranged vertically and the coke is conveyed by flexible means carrying buckets which discharge the coke in a shower. The coke is heated to 400-555‹ C. Specification 225,509 is referred to. According to the Provisional Specification any absorbent material may be used instead of coke.
Patent GB-660905-A (GB)
Title: Improvements in and relating to the production of polythioureas
IPC: C08L75/02
Filed: 1949-03-02
Abstract: In making polythioureas by reacting substantially equimolecular proportions of carbon bisulphide and a diamine, the amino groups of which are separated by a chain containing at least 3 carbon atoms, and heating the resulting intermediate salt until a fibre-forming thermoplastic is formed, the carbon bisulphide is reacted in the form of an aqueous emulsion with the diamine.  The aqueous emulsion of carbon bisulphide is preferably formed in situ by adding carbon bisulphide containing one soap-forming ingredient such as oleic acid. To a stirred aqueous solution of the diamine containing a second soap-forming ingredient such as triethanolamine or ammonia which reacts with the oleic acid to form an emulsifying agent in situ.  In further embodiments a minor part of the diamine itself may be used as the second component of the emulsifying agent, or a preformed aqueous emulsion of CS2 may be added to the diamine or to a solution thereof in water, alcohol or aqueous alcohol.  The use of a slight excess of CS2, e.g. 5 per cent, is preferred, and the temperature of the reaction mixture is preferably kept low, e.g. from 0 DEG  to 25 DEG C.  The intermediate salt formed, usually as an aqueous paste, may be purified by washing with cold water and then heated, for example, under pressure in the presence of water or steam as in Specification 524,795.  In examples: (1, 3) hexamethylene diamine is reacted with CS2, ethanolamine oleate being formed in situ, and the resulting intermediate salt heated under pressure to form a polythiourea soluble in phenol, creosol and formic acid; insoluble and infusible material may be removed from the product by dissolving in a solvent, filtering and precipitating in the presence of electrolytes, and occluded moisture and gases may be removed by heating under reduced pressure; (2) hexamethylene diamine is reacted with an aqueous emulsion of CS2, the precipitated intermediate salt being separated and treated as in (1).  Other diamines specified are decamethylene diamine and 1,4-di-(methylamino)-benzene.  Fibres produced from the products by melt spinning and capable of being cold drawn. Specification 534,699 also is referred to.
Patent GB-256504-A (GB)
Title: Improvements relating to stuffing box and like packings
IPC: F16K41/02
Filed: 1926-03-01
Abstract: 256,504. Rhodes, W. A. March 1, 1926. Boxes; glands and caps.-In a stuffing-box for a valve spindle the gland is replaced by an adaptor 21, the lower end of which is similar to and replaces the gland, while the upper end forms a second stuffing-box adapted to receive the gland 16 removed from the lower stuffing-box.