baber/WOPTO huggingface dataset:
Patent GB-645976-A (GB)
Title: Improvements relating to disinfectant and deodorant compositions
IPC: A61L2/20
Filed: 1948-07-29
Abstract: A disinfectant and deodorant composition in the form of a jelly is prepared by adding an aqueous solution of formaldehyde, sodium biborate and an emulsifying agent to an aqueous dispersion of sodium alginate and adding to the resulting admixture an aqueous solution or dispersion of calcium citrate.  In the example 40 per cent aqueous formaldehyde is added to an aqueous solution of borax, diluted with more water and a mixture of a solution of sodium higher alkyl sulphurate, triethanolamine and essential oil (e.g. oil of lavender) slowly added with constant stirring.  The solution so formed is dispersed in a jelly of aqueous sodium alginate and an aqueous dispersion of calcium citrate incorporated.
Patent GB-721205-A (GB)
Title: Improvements in and relating to bends uniting side pieces of timber
Inventor: TURNER NORMAN
IPC: B27G5/00
Filed: 1951-08-28
Abstract: 721,205. Compound sheet materials. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 26, 1952 [Aug. 28, 1951], No. 20263/51. Class 140. [Also in Groups XIV and XXIII] A bend for use in furniture, radio cabinets or the like comprises a radially-continuous bent filler piece 3 of an easily-bendable material, extending at least around the curve and preferably to some distance on either side, and an outer layer 6 glued to the filler piece and extending beyond it and into union with the timber side-pieces 1 on either side of the bend, the filler piece being of substantially the same thickness as the side-pieces. Preferably there is also an inner layer 4 glued to the filler piece and extending beyond it. The inner and outer layers may be wholly separate from the side-pieces 1 and may be rebated into them or the outer layer may be a single or double layer veneer covering the side-pieces and the bend. Alternatively, the space to accommodate the filler piece may be routed out of the timber, leaving in the case of ordinary plywood, the cross banding as the outer layer or, in the case of metal-faced plywood, leaving only the metal. The filler piece may be of a lowdensity timber, such as balsa, bombax, &c., which bends easily with its grain parallel to the axis of bend, or a wood substitute may be used, such as insulating board based on bagasse or wood &c. In making the bend, the filler piece is bonded to the outer layer with an adhesive, preferably a heat-reactive adhesive such as synthetic resin and its outer face spread with a liquid adhesive such as urea-formaldehyde resin. The inner layer is next applied and the assembly bent between male and female jigs or between a male jig and a rubber or metal belt, the male jig being heated by means such as a lowvoltage strip, if a heat-reactive adhesive is used. The assembly may be softened, before application of the inner layer, by steaming or soaking.
Patent GB-407864-A (GB)
Title: Improvements in oil burners
IPC: F23D3/00
Filed: 1933-07-18
Abstract: 407,864. Liquid-fuel burners. GILBERT & BARKER MANUFACTURING CO., Cold Springs Avenue, West Springfield, Massachusetts, U.S.A. July 18, 1933, No. 20296. Convention date, July 30, 1932. [Class 75 (i).] In order to provide a pilot or low-power flame, an oil burner comprises a combustion chamber and a base with two or more fuel grooves which are separated to prevent fuel flow from one to another, and have separate fuel inlets, but arc sufficiently near to one another for combustion of fuel in one groove to vaporize and ignite fuel admitted to another groove. The invention is described in connection with a perforated combustion-tube burner. The base 10 of the burner comprises one or more annular troughs interconnected by three or other number of arms 15. Each trough is divided by partitions 26 into the main part 11 and a subsidiary part 28. The main grooves 11 are connected by passages 16 in two of the arms 15, and the grooves 28 by passages 17 in the third arm 15. Each groove 28 contains a corrugated wick 27, and each groove 11 may contain a similar wick 29, the wicks being supported above the bottoms of the grooves by clips 30. The combustion space 13 formed by the perforated tubes 12 above each trough is also partitioned in the neighbourhood of the walls 26 by means of two angle irons 31, one attached to each tube 12 so that the space between them may be adjusted. Fuel is supplied through a control valve and the tube 23 to one of the passages 16, and through another valve or a restriction and the tube 24 to the passage 17. The short grooves 28 enable the maintenance of a small or pilot flame while the main part of the burner is not in use.
Patent GB-918155-A (GB)
Title: A process for the reduction of organic compounds containing nitrile or nitrile and oxime groups
IPC: C07C209/48
Filed: 1959-06-15
Abstract: Compounds containing nitrile, or nitrile and oxime groups are reduced to acylated amines which may be further hydrolysed to amines, by contacting with hydrogen in a system comprising a Raney metal catalyst, at least one mole of a liquid aliphatic acid anhydride or halogenated derivative thereof, per amine forming group, and an alkaline substance.  The compounds, ethyl N,N1-diacetyl-, di-propionyl-, diacetyl-DL-lysine, isopropyl N,N1-diacetyl-DL-lysine, and N-acetyl tridecylamine are claimed.  The catalyst comprises nickel or cobalt alone or alloyed with copper, zinc, chromium, molybdenum, iron, cerium or platinum; the anhydrides may be acetic, propionic, and butyric anhydrides and solvents which may be present include esters of carboxylic acids, dioxane, tetrahydrofuran, benzene and alkyl benzenes, petroleum solvents and petroleum ether.  The alkaline substance may be alkali metal or alkaline earth acetates, propionates, carbonates, cyanides, borates and sulphites and the basic salts of the acid corresponding to the anhydride are preferred, strong bases such as sodium or potassium hydroxide and benzyltrimethylammonium hydroxide may also be used.  Examples describe the reduction of (1) phenylacetonitrile to N-acetyl-2-phenylethylamine, (2) adiponitrile to N,N1-diacetyl hexamethylenediamine, (3) acrylonitrile to N-(n-propyl)benzoamide, (4) tridecanenitrile to N-acetyl tridecylamine, (5) ethyl 5-cyano-2-oximinovalerate to DL-lysine ethyl NN1-diacetyl-DL-lysine, and ethyl NN1-dipropionyl-DL-lysine, (6) isopropyl 5-cyano-2-oximino-valerate to isopropyl NN1-diacetyl-DL-lysine, (7) methyl 5-cyano-2-oximinovalerate to methyl N,N1-diacetyl-DL-lysine and (8) acetone cyanohydrin to 1-amino-t-butanol.
Patent GB-1069848-A (GB)
Title: Process for the polymerisation of vinyl chloride
Inventor: PERRINS LYLE EUGENE
IPC: C08F265/04
Filed: 1965-05-17
Abstract: Polyvinyl chloride, containing an acrylic polymer as a processing aid, is obtained by polymerization of vinyl chloride, or a mixture thereof with another monomer containing at least 80% by wt. of vinyl chloride, in aqueous suspension in the presence of the acrylic polymer, a free radical catalyst, a dispersing agent and at least 0.05% by wt. based on the acrylic polymer of a dissolved electrolyte. Comonomers or the vinyl chloride may be vinyl acetate, vinylidene chloride, alkyl esters of acrylic, methacrylic, maleic or fumaric acids, acrylonitrile or methacrylonitrile.  Specified catalysts are peroxides and azo compounds and dispersing agents are gelatin, methylcellulose and at least partially hydrolysed polyvinylacetate. The acrylic polymer preferably an aqueous dispersion or latex, is of methylmethacrylate or a copolymer thereof with an alkyl acrylate. The electrolyte may be a salt of a metal of Groups 1-3, preferably aluminium.
Patent GB-289681-A (GB)
Title: Improvements relating to centrifugal separators
IPC: B04B5/00
Filed: 1927-08-03
Abstract: 289,681. Cox, F. M. Aug. 3, 1927. No Patent granted (Sealing fee not paid). Density separators.-A centrifugal machine, used particularly for metallurgical concentrations, is provided with means for imparting pulsations in a horizontal plane to the liquid in the container. The hollow vertical shaft 2 is driven by the shaft 16 through bevel gearing, and carries a metal container 1 with peripheral ports 3 which can be opened or closed during rotation by means of valves 4 operated by the hand-wheel 15 and sleeve 21. The baffle plate 5 carries a portion 23 of flexible material and is reciprocated by a rod 11 operated from an eccentric 14. Pulp enters through the tube 8 and flows radially under the plate 5 by which it is given a pulsating movement. The concentrates are thrown to the periphery and escape through the ports 3 to the launder 10, while lighter particles and surplus liquid overflow into the launder 9. In a modification a cylindrical container is lined with. a sieve and the pulsations are imparted by water passed through a rotary valve. In another modification a rubber .diaphragm is arranged between the container and the sieve and pulsations are imparted to the diaphragm by compressed air admitted intermittently.
Patent GB-813524-A (GB)
Title: New derivatives of nicotinic acid and a process for the production thereof
Filed: 1957-06-28
Abstract: The invention comprises compounds of the general formula: <FORM:0813524/IV (b)/1> and its acid addition salts, wherein Phenyl represents a phenyl or halogen substituted phenyl radical, and Alkyl represents an alkyl radical having 2-12 carbon atoms; and the preparation thereof wherein nicotinic acid or a reactive derivative thereof is reacted with an a -phenyl alkylamine of the general formula: <FORM:0813524/IV (b)/2> Reactive nicotinic acid derivatives include the acid halide, azide, anhydride or a mixed acid anhydride. Examples describe the preparation of a -phenyl-heptyl nicotinamide and its hydrochloride from a -phenyl-heptylamine and nicotinic acid or the acid chloride, and of a -phenylpentyl nicotinamide and a -phenyl-butyl nicotinamide from the corresponding alkamines and nicotinic acid chloride.  a  - Phenyl - heptyl -,- pentyl - and - butylamines are prepared from hydrobenzamide and hexylbutyl- and propyl magnesium bromides respectively.  The a -phenyl heptylamine hydrochloride and a -phenyl butylamine benzoate are also prepared. Specification 621,062 is referred to.
Patent GB-148569-A (GB)
Title: An improved process for regenerating energy in direct current electric motors
IPC: B60L7/12
Filed: 1920-07-10
Abstract: 148,569. Constructions Electriques de Belgique, Soc. Anon., (formerly Compagnie lnternationale d'ElectricitÚ). June 7, 1919, [Convention date]. Electric braking. - Regenerative braking of directcurrent traction motors is effected by exciting the motor field S by a small auxiliary generator g driven by a small auxiliary motor m, both the auxiliary machines having shunt excitation as shown. The degree of the auxiliary shunt excitation is regulated by a rheostat indicated at R. An automatic switch J is arranged to throw resistance into the regenerative circuit in case the voltage furnished by the generator g is too low. The Specification contains diagrams of controllers of ordinary type as adapted for use with the, regenerative braking-means.
Patent GB-162684-A (GB)
Title: Improvements relating to the distillation of coal and similar carbonaceous substances
IPC: C10B1/04
Filed: 1919-08-21
Abstract: 162,684. Low Temperature Carbonisation, Ltd., Davidson, T. M., and Armstrong, H. L. Aug. 21, 1919. Cooling discharged materials.-Separate waterjacketed cooling-chambers are provided beneath retorts for distilling coal &c., having a curved end wall d and an opposite vertical wall c in which is the outlet aperture c<1> closed by a coverplate e. The waste gases may pass through flues between the cooling-chambers, the steam from which may be led by a pipe g to a superheater in the waste-gas flue
Patent GB-872468-A (GB)
Title: Improvements in lithographic printing plates
IPC: D03D27/10
Filed: 1957-07-02
Abstract: 872,468. Printing surfaces. KODAK Ltd. (Kodak Pathe S.A., Kowaliski P., Sallard H., and Vareine J. H. P.). Oct. 2, 1958 [July 2 1957], No. 20846/57. Class 100(2) A process for the preparation of lithographic printing plates which comprises forming an image on a lithographic element comprising a lipophilic surface carried on a support and treating the surface with a lithographic preparation to render the non-printing areas of the surface hydrophilic is characterised in that the support is transparent or translucent and that at least a part of the image is made by tracing through the support. The translucent or transparent support is coated with a colloidal layer of a tanned hydrophilic colloidal binder containing an inert filler, a basic hydroxide of a polyvalent metal and a dispersion of a macromolecular flexibilising substance. The basic hydroxide may be cadmium hydroxide, ferrous hydroxide, or, preferably manganese hydroxide employed in an amount of 0À2%,-3À0%, by weight of the solution of hydrophilic colloid containing the inert filler. The colloidal binder may be gelatin and the inert filler Kaolin or barium sulphate. The flexibilising macromolecular substance may consist of polymers of an alkyl acrylate, sodium alginate, or a cellulose derivative such as carboxymethylcellulose or a hydroxyalkylcellulose, and constitutes 0À5%-1% by weight of the solution of hydrophilic colloid containing the inert filler. The support may be a sheet of cellulose acetate having 43À6% acetyl. In an example a composition of the formula barium sulphate 390 gms., gelatin 48 gms., water 560 gms., and manganese hydroxide 2 gms. was made and the pH value adjusted to 7À5-8À5.40 ccs. of formaldehyde (4% solution), and 75 ccs. of a 30 % aqueous dispersion of polymethyl acrylate were added and the resulting composition coated on the support and dried at 40‹C. About 40 grams of dried material are-applied per square metre of the support. The plate may be imaged by using it as a tracing paper and employing a lithographic pencil.
Patent GB-630653-A (GB)
Title: An improved optical system made from synthetic resin
IPC: G02B7/182
Filed: 1947-08-01
Abstract: 630,653. Optical - projection apparatus. GREENWOOD, W. A., LIDDELL, W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 1, 1947, No. 21002. [Class 97 (i)] [Also in Group XL (a)] A projection optical system for television comprises a concave mirror 2 spaced from a corrector plate 1 by struts 3, all the parts being of synthetic resin and being joined by a cement containing a room temperature solvent for the resin, means such as a ring 4 being carried by the struts 3 to support a cathode-ray tube. The ring 4 and the intermediate struts 5 may be of the same resin similarly joined. The struts 3 must be secured to an unsilvered area of the mirror and to an area of the corrector plate free from a hard surface of cross linked resin which may be applied to it. The resin is prepared from one or more liquid compounds containing one CH 2 C< group per molecule including methacrylic acid esters, such as methyl methacrylate, cyclohexyl methacrylate, and 2,2,2-trifluoroethyl methacrylate ; vinyl acetate and styrene. Other resins include polymers and interpolymers of vinyl chloride and vinylidene chloride. The parts of the system are moulded or cut from sheet, strains being released if necessary, for example, by the method of Specification 580,855, [Group IV]. The cement for joining the parts preferably contains dissolved synthetic resin, preferably the same as that of the parts. Polymerized methyl methacrylate dissolved in chloroform is an example. The cement may be polymerizable by heat or light and contain an appropriate catalyst. It may be used in a partly polymerized condition or contain a proportion of dissolved polymer. Benzoyl peroxide is an example of a catalyst for the heat polymerization of methyl methacrylate. Specifications 565,801 and 567,776, [both in Group IV], also are referred to.
Patent GB-319442-A (GB)
Title: Improvements in direction indicators for power driven vehicles
IPC: B60Q1/36
Filed: 1928-07-20
Abstract: 319,442. Boisen, L. C. July 20, 1928. Road-traffic signals on vehicles.-A direction indicator of the type in which the indicator arm is moved by a piston under the action of engine suction has a box 1 with a fulcrum 2 about which the indicator arm 3 can turn. The box 1 contains a cylinder 5 open at the top and in which there moves a piston 6 which is connected by a spring 7 to a member 23 on the arm 3 which is concentrical to the fulcrum 2. The lower part of the cylinder 5 is connected by means of a nozzle 12 and a flexible tube 13 with a valve body 14 which communicates by means of a flexible tube 16 with the suction pipe of the car. The cylinder 5 can be put into communication with the suction pipe of the car by pressing on the press button 25, so opening the valve 18 which is normally held closed by a rubber tube 24 or spring or the like arranged beneath the press button. On releasing the press button 25 air leaks into the rubber tube 13 through a valve screw 26 and the piston 6 commences to rise but the arm 3 does not commence to fall until the spring shortens so that its tension is just insufficient to keep the arm 3 extended horizontally. When the arm 3 is hanging down it is retained in the box by a spring 9 supported on a belt 8 and bearing against a roller 10 on the arm 3. Transparent windows of red celluloid on the arm <3> are lit up by at lamp 4 easily removable from the arm by means of a swivelling door 19. The lamp is connected with the source of current of the car so that it is automatically lighted when the arm is moved into a horizontal position and put out when the arm returns to its normal position.
Patent GB-266999-A (GB)
Title: Improvements in, or relating to, fastening members for doors and the like
IPC: E05C3/14
Filed: 1926-08-27
Abstract: 266,999. Tonks, W. H., and Sparks, W. Aug. 27, 1926. Catches, gravity, for doors and the like comprise a member d<1> with side lugs e engaging an undercut hook f, carried by a handle d mounted on trunnions c in a bracket b. The lug e automatically engages under the hook f when the door is closed and is retained by the weight of the handle d. The centre line of the handle is disposed a little to the left of the trunnions c so that the lug e falls a little, to rest snugly in the undercut part of the hook.
Patent GB-667411-A (GB)
Title: Improvements in or relating to windows
Inventor: PERNETTA CHARLES
IPC: E05D15/20
Filed: 1949-08-15
Abstract: 667,411. Windows. BECKETT, LAYCOCK & WATKINSON, Ltd. Nov. 14. 1950. [Aug. 15, 1949] No. 21245/49. Class. 20(iii). The pane 13 of a vertically slidable sash 14 of a window, e.g. a ship's window, is moved horizontally and sealed against the gasket 12 of a frame member 11 after the sash has reached its fully closed position, the sash being suspended from, and connected to, racks 21 slidable on guides at each side of the window frame, by springs 24 and pivoted links 25 respectively so that continued upward movement of the racks 21 by winding mechanism 15-18, after the window has been fully closed causes the links 25 to swing horizontally and press the pane 13 up against the gasket 12. The initial opening downward movement of the racks 21 unlocks the links 25. A projection 26 in the path of the sash 14 prevents the links 25 from jamming the sash against the gasket should the suspension springs become damaged. In a modification the upper edge of the sash is guided close to the gasket, the lower edge only being swingable in and out of sealing engagement with the gasket 12.
Patent GB-167772-A (GB)
Title: Improvements relating to bedsteads
IPC: F16B12/58
Filed: 1921-08-11
Abstract: 167,772. Soc. Provoyeur, Magnette FrÞres, et Aussenard. Aug. 12, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Joints.-In a bedstead joint of the type in which the interengaging parts are of the dovetail socket and tenon type, the socket D is a hollow stamping welded or otherwise attached to the bedpost, while the tenon E is a hollow stamping riveted or otherwise fixed to the side rail.
Patent GB-276018-A (GB)
Title: Improvements in or relating to the manufacture of luminous electric discharge tubes
IPC: H01J61/42
Filed: 1927-08-13
Abstract: 276,018. Abadie, J. B. J. M. Aug. 14, 1926, [Convention date]. Low -.pressure metallic - vapour apparatus; vacuum tubes; vacuum apparatus with fluorescent materials.-In luminous electric discharge tubes filled with a mixture of neon or helium and mercury vapour, the glass is charged with fluorescent salts such as those of uranium or covered with fluorescent bodies such as sulphides. The light from a neon-mercury mixture filtered through yellow uranium glass is green and green light is also produced by fluorescence of the glass under the action of ultra-violet rays emitted by the gas mixture,. The glass may be coloured green by oxides. In decorative illuminations, this fluorescent tube may be used simultaneously with two tubes, one containing neon and the other neon and mercury, to correct the white light emitted' by the two tubes and to prevent over emphasis of objects with special reflection tints. In a modification, the glass of the tube is charged with fluorescent salts and the electrodes are charged with salts of mercury, for example, mercury cyanide which decomposes to yield mercury and' nitrogen mixing with a neon or helium filling in the tube.
Patent GB-597491-A (GB)
Title: Filtering equipment with automatic cleaning
Filed: 1945-08-21
Abstract: 597,491. Filtering apparatus. PISTA SOC. AXON. Aug. 21, 1945, No. 21387. Convention date, April 26. [Class 46] Filtering apparatus comprises at least one container with a filtering sand layer supported on a pervious fioor, the layer being cleansed by compressed air and filtered liquid flowing back into the container, and the washing liquid being removed by a siphon connected to vacuum, the filtered liquid beneath the pervious floor being always at a pressure greater than that corresponding to the minimum level of liquid allowed above the floor. As shown, containers 100, 101 are each provided with a sand filter 2 on a pervious floor 4 carrying strainer nozzles 103. The filtered liquid flows through a pipe 17 to a basin 104 provided with an overflow. A siphon 29 dips at one end into a trough 107 and at the other end leads to a discharge basin 35. The top of each container is provided with a contactor 33 controlled by a float, so that when, for example, the filter in container 101 is clogged and the liquid rises sufficiently high, the contactor acts to open two electrically controlled valves 110 and 111. The valve 100 opens to connect the siphon 29 to a vacuum pump, and the valve 111 opens to connect a source of compressed air to a pipe 25. The pressure of air in the pipe 25 just balances the pressure due to liquid at a level 22. The water is drawn off by the siphon and eventually below the level 22, whereupon compressed air from the pipe 25 and filtered liquid from the pipe 17 flow through the sand filters and cleanse it. At the same time a float 113 acts to close a valve 112 and stop supply of said water to the containers. The cleansing operation is limited by a timing device, so that after a time the siphon ceases to operate. The liquid in the container 101 again rises to the level 22 whereupon the float 113 opens the valve 112 and admits raw water to the container. Specification 578,811 is referred to.
Patent GB-325773-A (GB)
Title: Improvements in and connected with boiler cleaners
IPC: F28G3/16
Filed: 1929-07-12
Abstract: 325,773. Babcock & Wilcox, Ltd., and Glinn, R. J. July 12, 1929. Cleaning, fluid-pressure processes for. - In a boiler cleaner in which the blower tube 9 is immovable longitudinally but rotatable to adrnit the cleaning fluid, and the nozzle 10 comprises a number of ports 11, each providing a single blast of fluid, the tube 9 is formed of a calorized or other heat-resisting tube, and the nozzle is protected from the furnace heat by a shaped tile 13. The tube 9 is rotated from a chain wheel 8 through gearing 7, 6, and a cam 5 opens a fluid valve 4; an air relief valve 3<a> is provided.