baber/WOPTO huggingface dataset:
Patent GB-345791-A (GB)
Title: Means for supervising pneumatic fire alarm systems
IPC: G08B29/00
Filed: 1930-03-05
Abstract: 345,791. Fire-alarm systems. BURGESS, A. F., 10, New Court, Lincoln's Inn, London.-(Automatic Sprinkler Co. of America ; 910, Engineer's Bank Building, Cleveland, Ohio, U.S.A.) March 5, 1930, No. 7212. [Class 47 (i).] In a fire-alarm system of the kind comprising a tubing carried round the protected area and enclosing air which, by its expansion under fire conditions, operates a pressure-sensitive device controlling a signal, a diaphragm is arranged at each end of the tubing and is adapted; independently, to produce a signal both in case of fire, and in case of break or leakage in the tubing. As shown, the tubing 7 opens, at each end, into a casing 6 in which is mounted a diaphragm 6<1> carrying an electric contact. The casings 6 communicate, by vents 5<1>, with an outer casing 5 which communicates, by a restricted vent &, with a further casing 4 in which a constant pressure is maintained by a compresser 3. Each end of the tubing 7 communicates, by a restricted vent 9, with the casing 5. In case of fire, one or both of the diaphragms 6<1> is moved by the expanding air in the tubing to engage contacts B, thereby closing the circuit 10, 10<1> which includes battery 25 and relay 17. The latter causes operation of a local alarm 40 and of a transmitter 18 working with a central station fire alarm 20. In case of leakage in the tubing 7, the diaphragms 6<1> engage contacts A, closing a circuit 10, 11 which includes the battery 25 and a relay 41 which controls a transmitter 22 working with a central station fault alarm 23. The condition of the electric circuit is supervised by means of a relay 14 and fault signal 16. The compresser 3 is electrically driven, and is automatically controlled, to maintain uniform pressure in the alarm system, by a contact pressure gauge 28. Should the compresser fail to maintain the required pressure, a contact gauge 27 eventually closes a circuit 31, 321 which includes a relay 32. The latter causes operation of a local fault signal 37 and of a transmitter 33 working with a central station signal 35.
Patent GB-451487-A (GB)
Title: Improvements in and relating to method of and apparatus for spinning a single-ply yarn comprising a blend of animal and vegetable fibres
IPC: D02G3/28
Filed: 1936-03-10
Abstract: 451,487. Spinning yarn from blended slivers. GOODALL WORSTED CO., Sanford, Maine, U.S.A. March 10, 1936, No. 7217. Convention date, April 9, 1935. [Classes 120 (ii) and 120 (iii)] Single-ply yarn is spun from two separate rovings 10, 14 of long animal fibres, such as mohair or wool, and of short vegetable fibres, such as cotton, respectively, the former being drafted between the rollers 5, 3, and the latter between the rollers 7, 3 in such manner that, at the roller 7, the roving 10 is smaller than the roving 14, whereby the rollers 6, 7 serve as carriers between the rollers 5, 3, for the roving 10, and, with the rollers 3, as drawing- rollers for the roving 14, and the rovings merge, as shown in Fig. 5, wherein the dotted lines 51 .. 54 indicate the nips of the rollers, and are twisted by any suitable apparatus. The ends are supported by a slide 21 between the front rollers and the carriers.
Patent GB-1421078-A (GB)
Title: Photopolymerization of unsaturated polyester resins
IPC: G03F7/029
Filed: 1974-02-18
Abstract: 1421078 Photoinitiators ICI UNITED STATES Inc 18 Feb 1974 [16 March 1973] 7243/74 Heading C3P A photoinitiator for a mixture of polymerizable unsaturated polyester and a copolymerizable monomer has the general formula in which R 1  is H, Br or CH 3 , R 2  is H or Br provided at least one of R 1  and R 2  is Br and R 3  and R 4  are H or CH 3 ; an organic peroxide may also be added.
Patent GB-1058620-A (GB)
Title: Synthesis of compounds having an amide-bond
IPC: C07K5/083
Filed: 1964-02-21
Abstract: A possibly substituted aliphatic, aromatic or araliphatic ester of a carboxylic acid or a thiolcarboxylic acid is converted into a corresponding amide by reacting the ester with ammonia, hydrazine, or a primary or secondary amine in the presence of a bifunctional catalyst which is a compound containing both a nucleophilic group and an electrophilic group, the positions of which groups are such that the formation of a cyclic transition state is possible, the compound being free of groups which would cause steric hindrance of the nucleophilic group and/or the electrophilic group so that the formation of a cyclic transition state in the conversion would not be possible.  The reaction may be effected in an organic solvent or in an organic solvent diluted with water and is usually performed at - 25 DEG  to 100 DEG  C. Specified catalysts are pyrazole; 4-halo-pyrazole; 4 - cyano - pyrazole; 4 - nitro - pyrazole; 1,3,5-triazole; 1,2,4 - triazole; 4 - cyano - 3,5-dimethylpyrazole; 2 - mercapto - imidazole, hydantoin, 2 - thiohydantoin; 3 - mercapto-4 - methyl - 1,2,4 - triazole; 5 - methyl - tetrazole; 2 - hydroxy - pyridine; 2 - hydroxy - 6-methylpyridine; 2 - mercaptopyridine; 8-hydroxy - quinoline; 2 - hydroxybenzimidazole; 2 - mercaptobenzimidazole; 2 - mercaptothiazoline; and succinimide.ALSO:A polyamide or polypeptide may be produced by reacting an aliphatic, aromatic or araliphatic ester of a poly-carboxylic acid with polyamine or by polymerizing an aliphatic, aromatic or araliphatic ester of an aminoacid in the presence of a catalyst containing both a nucleophilic and an electrophilic group, the positions of which groups are such that the formation of a cyclic transition state with the ester is possible.  The reaction may be effected in an organic solvent or in an organic solvent diluted with water and is usually performed at - 25 DEG  to 100 DEG  C.  0.01-3 Molar equivalents of catalyst may be used per mole of ester. Specified catalysts are pyrazole; 4-halo-pyrazole; 4-cyano-pyrazole; 4-nitro-pyrazole; 1,3,5-triazole; 1,2,4-triazole; 4-cyano-3,5-dimethyl-pyrazole; 2-mercapto-imidazole; hydantoin; 2-thiohydantoin; 3-mercapto-4-methyl-1,2,4-triazine; 5 - methyl - tetrazole; 2 - hydroxy-pyridine; 2 - hydroxy - 6 - methyl - pyridine; 2 - mercaptopyridine; 2 - hydroxy - quinoline; 2 - hydroxybenzimidazole; 2 - mercaptobenzimidazole; 2-mercaptothiazoline, and succinimide. In Examples XII and XIII L-leucine p-nitrophenyl ester hydrobromide and L-phenylalanine-p-nitropheny ester hydrobromide are polymerized in acetonitrile in the presence of 4-nitropyrazole.  In Examples XIV and XVII di(p-nitrophenyl)terephthalate and dimethyl terephthalate are polymerized with ethylene diamine in the presence of 1,2,4-triazole.
Patent GB-238149-A (GB)
Title: Improvements in and relating to rail joints for railways and like purposes
IPC: E01B11/10
Filed: 1925-03-19
Abstract: 238,149. Smith, E. A., and Jenkins, T. March 19, 1925. Rail joints are received in a metal sleeve 1 which is secured by the two central fish - bolts 4 and carries a metal plate 9 which is pressed against the underside of the rails by a bolt 6 with nuts 7, 8.
Patent GB-723101-A (GB)
Title: Steam-and-water collectors for steam-generators
IPC: F22B37/22
Filed: 1951-03-30
Abstract: 723,101. Boiler steam collectors. ROSSI, G. March 30, 1951.. [March 30, 1950] No. 7455/51. Class 123 (2). A steam-and-water collector for a naturalcirculation steam boiler comprises a plurality of horizontal or slightly-inclined tubular elements 22, Fig. 6, which are arranged at different levels and are interconnected by spaced smaller tubes 24, 26 ; the uppermost and lowermost elements are in communication, respectively, with the steam-outlet pipes 42 and downcomers 48, whereas the steamgenerating tubes 44 of the boiler communicate with an element or elements above the lowermost. The collector is shown constituted by two symmetrical groups of elements each with a feedwater supply pipe 46 ; auxiliary steamgenerating circuits comprising three elements 28 connected by tubes 30, 32, and in communication with the lower and upper parts of the collector by conducts 34, 36, are also provided. A second embodiment, Fig. 8, comprises rows of elements 50 connected by vertical tubes 52 and horizontal tubes (not shown), the downcomers 56 and steam-generating tubes 60 leading from and to the elements in the lower and upper element rows. A small auxiliary collector 62, with gauge glass 64, is fitted at the side of the main collector and is provided at its ends'with junctions having branches 68, 70 for steam outlet and feedwater supply pipes and further branches to permit the collector to be coupled to other collectors. Several modifications are described.
Patent GB-542838-A (GB)
Filed: 1940-04-25
Abstract: 542,838. Plasticized polyamide compositions ; compound glass. DU PONT DE NEMOURS & CO., E. I. April 25, 1940, No. 7464. Convention date, April 28, 1939. [Class 2 (iii)] [Also in Group VIII] Plasticized polyamide compositions are prepared by incorporating with a synthetic linear polyamide an alkylaryl-sulphonamide of the formula R-R 1 -SO 2 NR 2 R 3 , in which R is an alkyl radical of at least 4 carbon atoms, R 1  is an aromatic radical which may contain other alkyl substituents, and R 2  and R 3  are hydrogen or organic radicals. The preferred alkylaryl sulphonamides are those in which the aryl nucleus is benzene and the alkyl substituent attached to the benzene ring contains from 4 to 10 carbon atoms. Many such sulphonamides are specified, and they .are generally used in quantities ranging from 10 to 150 per cent. by weight of the polyamide. The sulphonamide may be incorporated in the polyamide by immersing the latter, in sheet form, in a solution of the sulphonamide in a non- solvent for the polyamide, and the plasticizing effect is enhanced by the presence, within the polyamide sheet, of a small amount of water or other hydroxylated non-solvents, such as alcohols. Alternatively, the polyamide and sulphonamide may be dissolved in a mutual solvent, and the solution used in making filaments, films, rods or the like, by evaporative or coagulative methods. The sulphonamides may also be incorporated by direct blending with the molten polyamide, or by including the sulphonamides with the monomeric polyamide-forming reactants before polymerization. Other plasticizers also may be present, e.g. dibutyl phthalate, tricresyl phosphate, dibutyl sebacate, dibutyl adipate, dibutyl maleate, salicylic acid, lactic acid, camphor and sulphonamide-formaldehyde resins. Other specified ingredients which may be incorporated in the compositions are t-butyl phenol, amyl' phenol, diamylphenol, resorcinol, carvacrol, 2 - (bis - 4 - hydroxyphenol) - propane, p - hydroxydiphenyl, lustre-modifying agents, pigments, dyes, antioxidants, oils, anti-septics, cellulose derivatives and ultra-violet light opacifying agents such as benzyl salicylate and the salicylate of the methyl ether of diethyleneglycol. Examples are given. The compositions are stated to be applicable to the making of yarns, fabrics, bristles, surgical sutures, fisbline, dental floss, rods, tubes, films, ribbons, sheets, safety glass interlayers, moulded articles, adhesives, electrical insulation, impregnating and coating compositions, blown articles, toys and hollow toilet ware. Specification 461,236 and U.S.A. Specifications 2,071,250 and 2,130,948 are referred to.
Patent GB-780448-A (GB)
Title: Improvements relating to envelopes for postal purposes
IPC: B65D27/20
Filed: 1955-03-15
Abstract: 780,448. Combustion chambers. COMBUSTION ENGINEERING, Inc. Feb. 24, 1955 [Sept. 14, 1954], No. 5547/55. Class 51 (1). [Also in Group XXII] A water-cooled furnace for a steam generator comprises side walls 12a, 12b, 12c, Fig. 1, lined with tubes 14, Fig. 2, whose lower and upper ends are connected to headers 16, 18 in communication with a steam and water drum 24 having a feed-water inlet 34 and steam outlet 33. The tubular walls are formed as prefabricated panels 36a, 36b, 36c and the adjacent tube ends of the panels are welded together when in position in the furnace (see Group XXII). Burners 32 are supplied with fuel and air.
Patent GB-650273-A (GB)
Title: Improvements relating to the halogenation of aliphatic hydrocarbons
IPC: C10G73/38
Filed: 1948-03-11
Abstract: Aliphatic hydrocarbons of the paraffin wax and petroleum ceresin groups are halogenated when dissolved in an inert solvent for the hydrocarbon and desired product and isolated by mixing with an aliphatic hydrocarbon preferably containing 3-6 atoms of carbon per molecule, collecting the precipitate, filtering, washing and drying. The mixing is preferably effected whilst stirring vigorously.  Inert solvents specified are halogen derivatives of ethane, 1,3,5-trichlorobenzene, nitrobenzene, and carbon tetrachloride which is preferred.  Temperature of halogenation may be adjusted by, e.g., varying the boiling-point of the solvent by means of pressure alterations.  The temperature range specified is about 100-120 DEG C.  The product may be purified by dissolving in a solvent, e.g., halogen derivatives of methane and ethane and ethers and then mixing as above with a light aliphatic hydrocarbon.  In examples (1) mineral wax, melting-point 80-85 DEG  C., is dissolved in refluxing carbon tetrachloride, treated at 70 DEG  C. with chlorine in the presence of ultra-violet rays and when chlorinated to the desired extent is mixed with pentane at 15 DEG  C., the product being filtered off, washed and dried at 40 DEG  C.; in (2) the reaction of (1) is carried out at 120 DEG  C. under pressure, the resultant solution diluted with more carbon tetrachloride, decolourized and atomized in liquefied butane; in (3) the product of (2) is purified by dissolving in ether and precipitating by atomizing in liquid butane under pressure; and in (4) paraffin wax melting-point 52 DEG  C., is chlorinated at 100 DEG C., first without and then with ultra-violet radiation and the product isolated after mixing with petroleum ether at 10 DEG  C.
Patent GB-700118-A (GB)
Title: Improvements in and relating to synthetic resin compositions
IPC: C08K5/07
Filed: 1951-04-02
Abstract: Heat-hardenable synthetic resins or compositions containing them are hardened by mixing with at least one polychlorinated hydroaromatic ketone containing at least 4 chlorine atoms per molecule, in amount, e.g. of 0.1 to 10 per cent. by weight of the resinous component, and heating to above 70 DEG C.  Resins specified are condensation products of phenols, cresols, xylenols, urea, thiourea, melamine and aniline with aldehydes, e.g. formaldehyde or mixtures of such resins. The resins may be used in the form of powder, aqueous pastes or emulsions, or solutions in organic solvents, e.g. acetone and alcohol.  Fillers and extenders specified are wood flour, asbestos, cellulose, textiles and starches.  Film forming components such as natural resins may also be added.  In examples, 2 : 2 : 6 : 6 - tetrachloro - cyclohexanone - 1 is mixed with (1) a water-soluble melamine-formaldehyde resin powder; (2) a urea-formaldehyde solution; (5) an alcohol solution of a butylated melamine-formaldehyde condensate; (3) a water-insoluble melamine-formaldehyde resin is mixed with 1:1:3:4-tetrachloro - 2 - ketotetrahydronaphthalene; (4) a water-insoluble phenol-formaldehyde resin powder is mixed with 2:2:3:4:5:6:6-heptachloro-4-methylcyclohexanone-1.  2 : 3 : 4 : 4 : 5 : 6 : 6 - heptachlorocyclohexanone-1 is also specified.  The heat-hardenable compositions may be used in making pressed masses, wood glueing, stove enamels, building materials from wood waste and in treating textiles.
Patent GB-557346-A (GB)
Title: New or improved calender and process for making sheets from plastic compositions
IPC: B29C43/24
Filed: 1941-06-16
Abstract: 557,346. Synthetic resin compositions. CARBIDE & CARBON CHEMICALS CORPORATION. June 16, 1941, No. 7585. Convention date, July 18, 1940. Drawings to Specification. [Class 2 (iii)] [Also in Group V] Plasticized polyvinyl partial acetal resins, e.g. those described in Specification 459,878, derived from a polyvinyl alcohol or ester having a molecular weight exceeding 10,000, e.g. 25,000, and aliphatic aldehydes having from 2 to 6 carbon atoms and having a degree of acetalization between 33 and 94 per cent. are calendered into sheets. The acetalization may be between 88 and 94 per cent. with acetaldehyde, 52 and 92 per cent. with propionaldehyde, 42 and 82 per cent. with butyraldehyde, 33 and 62 per cent. with valeraldehyde, or 33 and 44 per cent. with n-hexaldehyde. These resins are, in general, insoluble in aliphatic and aromatic hydrocarbons, ethylene dichloride, methylene chloride, chloroform and ethyl acetate, soluble in alcohols and glycol monoalkyl esters and partially soluble in chlorinated hydrocarbons and ketones. The Specification as open to inspection under Sect. 91 refers also to Specification 460,230 (making laminated glass, e.g. with the resins of Specifications 459,878) and 499,339 (shaping polyvinyl partial acetal resins under heat and pressure). This subject-matter does not appear in the Specification as accepted.
Patent GB-1520162-A (GB)
Title: Bone joint prosthesis
IPC: A61F2/38
Filed: 1977-05-25
Abstract: 1520162 Bone joint prosthesis NATIONAL RESEARCH DEVELOPMENT CORP 25 May 1977 [26 Feb 1976] 07632/76 Addition to 1413477 Heading A5R The bone joint prosthesis described in U.K. Specification 1413477 are improved by using metal and plastics respectively for any two of the first component, second component and linkage.
Patent GB-244309-A (GB)
Title: Improvements in or relating to measuring pumps
IPC: B67D7/60
Filed: 1925-03-21
Abstract: 244,309. Shulze, R. G., (Bowser & Co., Inc., S. F.). March 21, 1925. Air vessels; measuring devices.-A pump measuring devices.-A pump for dispensing liquids such as lubricants is provided with a transparent display receptacle 18, the interior of which is so connected to the pump that it can be charged at will with liquid and retain such charge, but does not normally receive the delivery of the pump. The receptacle may form the air chamber of the pump and be connected to the delivery pipe 12 by a three-way fitting 14 which carries the delivery nozzle 16. The liquid enters the chamber 18 through a tube 21 provided with ports 26. An air port controlled by a screw 24 allows air to escape during the filling.
Patent GB-557936-A (GB)
Title: Improvements in or relating to apparatus for automatically marking a succession of moving articles
IPC: B41F17/16
Filed: 1942-06-05
Abstract: 557,936. Printing-machines. WILTS UNITED DAIRIES, Ltd., and HULBERT, D., LACY-. June 5, 1942, No. 7701. [Class 100 (ii)] A printing-machine for marking a succession of moving articles which is especially applicable for printing batch markings on the lids of filled cans C on a conveyer B is constructed so that the rotation of the printing-dies 16 is controlled by trigger mechanism released by the cans, the drive being obtained from a roller resting on the conveyer and acting through a slip clutch which is rendered operative when a trigger 35 is released by a detent 39 on a shaft 36 fitted with an adjustable arm 44 adapted to be engaged by the cams C. The devices are mounted in a bracket 10 attached to a milk-filling machine, and the shaft 14 of the printing-dies 16 is supported in bearings 13 which are vertically adjustable by means of a screwed supporting rod 17, and are held in adjusted position by a rod 12 secured by a screw-clamp to an extension of the bracket 10. The driving-roller 34 which engages the conveyer is mounted in a lever arm 23, and it drives by a slip clutch 27, 28, and a belt 32, a pulley 15 on the shaft 14, which is driven at such a speed that the tangential speed of the dies 16 is equal to the linear speed of the cam C. The shaft 36 is mounted between bearing-plates 37, 38, and the arm 44 is horizontally adjustable in a socket 43 which can be adjusted vertically on the shaft 36. The type holder is held on the shaft 14 by means of a spring detent, and as it rotates it engages the felt surface 66 of a wooden inking roller 65 which can rotate freely on an axle adjustable by means of an eccentric bush 55. Surrounding the roller 65 is a pair of nested casings 61, 63 which are formed with gaps which are maintained in register when the apparatus is in use, but which can be set so as to close the roller 65 completely when the apparatus is not in use.
Patent GB-648616-A (GB)
Title: A mould for pressing glass articles especially perforated articles
IPC: C03B11/06
Filed: 1948-03-15
Abstract: 648,616. Glass. SKLARNY INWALD, NARODNI PODNIK. March 15, 1948, No. 7771. Convention date, March 15, 1947. [Class 56] Pressed glass articles, e.g. dishes, cups and tumblers, are made in a machine comprising a reciprocable plunger-like mandrel 2, a reciprocable ram 14 and a mould 8 comprising a number of radially-movable segments. Each segment is provided with a depending pin 9 which works in a radial slot 10<SP>1</SP> in a stationary ring 10, and in a curved slot 7<SP>1</SP> in a ring 7 which may be rotated by a handle 11. The mandrel is raised and lowered by air pressure admitted to chambers 5, 6. The segments of the mould may be provided with radially-projecting pins or nibs if the article is to be ornamentally perforated.
Patent GB-231664-A (GB)
Title: Improvements relating to gas ovens
IPC: F24C3/08
Filed: 1924-03-27
Abstract: 231,664. Liggins, J. W. March 27, 1924. Gas cooking - stoves; air supply for combustion.-The bottom of a gas oven is closed by a plate A, shaped so that part of it lies above the level of the burners B and part below the level of the burners to form a space D below each burner for the passage of secondary air. In the form shown, the plate rests on ledges C at the back and front of the oven, and is bent so that the central portion lies beneath the burner level; in a modification the plate is above the burners and has the centre portion of the edges adjacent the burners bent downwardly.
Patent GB-839521-A (GB)
Title: Improvements in or relating to turbine rotors
IPC: F01D5/06
Filed: 1958-03-11
Abstract: 839,521. Welding by fusion. BROWN, BOVERI & CIE A.G. March 11, 1958 [March 11, 1957], No. 7796/58. Class 83 (4). The rims 2 of discs which are to be welded together to form a turbine rotor are formed with mating annular projections 5, which serve to centre the discs and provide the root of a welding groove 3, the projections being of thickness d not greater than 10% of the thickness D of the pins. The projections 5 are welded using a gas-sheilded arc and then the welding groove 3 is filled with weld metal.
Patent GB-497722-A (GB)
Title: Improvements in or relating to shaving granules or crystals and methods of and apparatus for making same
IPC: C11D13/20
Filed: 1937-03-17
Abstract: <PICT:0497722/III/1> Shaving-cream is dried and divided so as to obtain granules. Suitably, a cream is prepared from 20 lb. of stearic acid, 8,0 lb. of tallow, 7,0 lb. of coconut oil, 2,0 lb. of cetyl alcohol, 3,5 lb. of mineral oil, 10,0 lb. of potassium hydroxide, 1,0 lb. of sodium hydroxide, 6,0 lb. of glycerine, 2,0 lb. of boric acid, 40,0 lb. of water, and 0,5 lb. of perfume.  This is centrifuged at 100 DEG  F. to a water-content of 10 per cent, rolled to a sheet 1/32 " thick, dried between perforated and plain metal sheets in an electric oven and then by a current of air; this sheet 12 is smoothed and thinned to 1/64 " by rollers 22 and blades 23, while air is blown thereon from a pipe 24, and is blown through a screen 26 by air from pipes 29; the granules in the bin 28 are further dried and prepared for packaging by 30 min. blowing about in a drier.