baber/WOPTO huggingface dataset:
Patent GB-510259-A (GB)
Title: Improvements in or relating to the development of photographic layers
IPC: G03C5/30
Filed: 1938-01-29
Abstract: 510,259. Electrolytic treatment of photographic developers. RZYMKOWSKI, J. Jan. 29, 1938, No. 2928. [Class 41] [Also in Group XX] Absorptive oxidation-reduction systems are used as photographic developers, the reduction potential being electrolytically influenced during the development. Examples of oxidationreduction systems used include anthraquinones, phenanthraquinones, indophenols, aminoindophenols, indamines, thiazines, oxazines, saffranines, rosindulines, rosindones, viologenes, isovitamin C, indigo derivatives and organic complexes of the type Alk x  [(R COO)y Me z ] where Alk is K,Na or NH 4 , Me is Fe, V, Ti, Cr, &c, and R is an organic-radical -CH 3 , -CH 2 OH, -COO-, -CH 2 COO .., -C 6 H 5 . C 6 H 4 O &c., the system in each case being represented by the oxidised form. In certain cases the electrode potential depends on the hydrogen ion concentration and it is therefore maintained constant by buffer systems e.g. acetic acid-sodium acetate mixtures, boraxboracic acid mixtures, by blowing in carbon dioxide, by adding acid or by means of auxiliary neutralization anodes. During the development of silver halide, halogen ions become free and must be removed from the developer by means of thallium salts, phenol, orthocresol &c., if necessary, in the presence of catalysts such as iodine, iron or tin. The developing vessel is formed as an electrolytic cell, but, alternatively, the developer may flow through the vessel and be subjected outside to the electrolytic treatment. Divided cells may be used. In an example, the developing vessel contains 100 litres of a 1 per cent. solution of anthraquinone sodium. sulphonate buffered to a pH 4 -pH 5  value. Two carbon electrodes are immersed at 150mms. apart and are subjected to 8 volts potential, the cathode having a greater superficial area. The anthraquinone is reduced at the cathode to the green anthrahydroquinone and during the development, the current is controlled to maintain an equimolecular ratio. Photo-electric cells are used in colorometric control of the developer. The use of a 3 per cent. solution of 0-cresolindophenol in a cell employing a steatite diaphragm and electrode plates of stainless steel is also described. In this example, a coldsaturated soda solution serves as the catholyte, and phenol is employed in the anolyte to combine with the liberated halogen. Some of the developers specified can be used for colour development, the silver being dissolved out in known manner.
Patent GB-1480151-A (GB)
Title: Conveyor link
IPC: B65G17/38
Filed: 1975-01-23
Abstract: 1480151 Endless chain conveyers NORTON CO 23 Jan 1975 [28 Jan 1974] 2955/75 Heading B8A Load carrying platform attachment members 30 are adapted to slide into position on respective links 10 of an endless chain, the position of each platform relative to its associated link being limited by respective stop surfaces 35, 25, and respective detents 51, and recesses 52. Flanges 23, 23, on each link engage in recesses 32, 32 on the associated platform. The parts may be made of corrosion-resistant moulded plastic material. The upper, side, and end surfaces of the platforms may be suitably curved, instead of straight, as shown.
Patent GB-572996-A (GB)
Title: Improvements relating to the filtration of liquids
IPC: B01D29/15
Filed: 1943-02-24
Abstract: 572,996. Filters. TECALEMIT, Ltd., and' LE CLAIR, C. C. S. Feb. 24, 1943, No. 3063. [Class 46] In a filter comprising a number of bobbin-like hollow elements 22 each consisting of a central perforated tube 23 carrying between end flanges 27, 28 a cylindrical mass of filtering material 30, the lower ends of the tubes 23 are closed and their upper ends communicate with the interior of a header 16 to which the elements are secured, the header 16 being removably held on a central hollow boss 6 on a removable filter head 2 containing inlet and outlet passages 13, 5, with the latter of which the passage 5 in the boss 6 communicates. In the construction shown the elements 22 are arranged in a ring, in contact with one another, and the lower ends of the tubes 23 are closed by fitting into depressions in. a plate 25 with a central hole for the upward passage of the liquid. The: head 2 is secured by a plug 4 which closes the outlet passage 5 and is screwed on to a central rod 3. the lower end of this rod being screwed into a hollow spigot 7 through which the liquid may be drained from the container by slackening back or removing: a ported plug 10. The header 16 is pressed against a sealing ring: 16A on the boss 6 by a sleeve 18 forced upwardly by a spring 17, and having a flared end which. bears on a sealing ring 21. The header and filtering elements 22 form a removable unit. The filtering elements shown comprise a cylinder 29 of wire gauze around the central tube 23, on which is arranged the filtering material 30, consisting for example, of a cotton or wool strand wound criss-cross in helical form. A helix of wire may be arranged between the tube 23 and the gauze cylinder 29, and the latter may be replaced by a tube of other permeable material, such as woven fabric or coarse bonded granular material. The filtering material 30 may consist of a winding of several layers of fabric, of granular or powdered material in a tubular textile or woven metallic sac which is helically wound on the element, or of granular material retained in position by an admixed adhesive or an external woven covering. The filtering material may increase in fineness in the direction of flow of the liquid through it, for which purpose layers of fabric of different fineness may be used.
Patent GB-1153446-A (GB)
Title: Water-Soluble Azo Dyestuffs.
Inventor: BOOTH GERALD
IPC: C09B44/02
Filed: 1966-01-24
Abstract: 1,153,446. Substituted N-ethyl pyridinium chlorides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 Jan., 1967 [24 Jan., 1966], No. 3097/66. Heading C2C. [Also in Division C4] 4 - Aminobenzenesulphon N - # - chloroethylamide, 4 - amino - 2,5 - dichlorobenzenesulphon N - # - chlorethylamide, and aniline 3,5 disulphon (N-#-chloroethyl) amide are heated with pyridine to form the corresponding N-(#-pyridiniumethyl) amides.
Patent GB-809981-A (GB)
Title: Improvements in or relating to cap closing devices for bottles and like liquid containers
Inventor: WORSLEY WILLIAM
IPC: B67B3/10
Filed: 1957-01-29
Abstract: 809,981. Closuring containers. WICANDERS (GREAT BRITAIN) Ltd. Dec. 9, 1957 [Jan. 29, 1957], No. 3176/57. Addition to 689,912. Class 125(2). In the closing member or disc 1 of the parent Specification, the closing recess 2 is provided with an additional recess 5 accommodating preformed beads on the container and closure and presenting internal and external sealing surfaces 3. 6.
Patent GB-547946-A (GB)
Title: Improvements in or relating to frictional anti-slipping means
IPC: A63B59/00
Filed: 1941-03-10
Abstract: 547,946. Boots; gloves; handles; sporting articles. DAVIES, R. G., and AGAR, F. L. March 10, 1941. No. 3203. [Classes 17 (ii) and 141 [Also in Groups XV and XXIII] Frictional anti-slipping means for temporary association with a person's hand or an article comprise a surface of emery cloth, glass paper or the like combined with a glove or mitten, a resilient band or a cover or sheath. As shown in Fig. 1 the face 2 of the head 3 of a golf putter is carried by resilient bands 4 provided with frictional surfaces 5. Alternatively a resilient cover provided with a frictional surface may fit over the head of the club. It may be secured in position by clips or a sliding clasp. As shown in Fig. 4 the handle 10 of a golf club shaft may be covered by a resilient sheath 12 provided with adhesive strips 9 having a frictional surface 5. Gloves, Fig. 5, or mittens may be provided with frictional surfaces 14, 15, 17 secured to the palm, thumb and fingers by adhesive or stitching. The device may be applied to the striking faces of sporting articles, or handles, handwheels and levers of machinery, and to the soles and heels of footwear.
Patent GB-1478743-A (GB)
Title: Gravity driven wind powered alternating current electricity generating unit
IPC: F03D9/02
Filed: 1976-05-25
Abstract: 1478743 Electricity generation F L LAWSON 26 Jan 1976 [24 Jan 1975] 3283/75 Heading H2A In an electricity generating system wind energy is first stored by raising large masses to a high level, and then subsequently released, by allowing the masses to fall to their original level, at a controlled rate, to drive an alternator.
Patent GB-804042-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: BAKER GEORGE THOMAS
IPC: H04M3/523
Filed: 1955-06-07
Abstract: 804,042. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. May 22, 1956 [June 7, 1955], No. 3311/58. Divided out of 804,041. Drawings to Specification. Class 40 (4). In a telephone system employing registers of the magnetic storage type in the event of a calling party dialling any one of a plurality of predetermined numbers, e.g. unassigned numbers, the registration of the wanted number is replaced by another predetermined number which then controls the setting up of a connection appropriate to all the predetermined dialled numbers. The description and drawings are identical with those of Specification 804,041 but the claims differ.
Patent GB-513390-A (GB)
Title: Means for supplying compressed air to revolving chucks and the like of machine tools, particularly lathes
IPC: B23B31/30
Filed: 1939-02-01
Abstract: 513,390. Lathes ; chucks ; stuffing-box substitutes. FORKARDT, R. Feb. 1, 1939, No. 3374. Convention date, April 27, 1938. [Class 83 (iii)] [Also in Group XXVI] In means for supplying compressed air to rotating fluid-pressure operated chucks,' the stationary casing 5, to which the supply pipes 7 are attached and which contains chambers 6 conducting the air through passages in the machine spindle 17 to the chuck-operating cylinder, is provided with further chambers 8 containing lubricant such as oil or grease on each side of the air chambers to provide a seal, and the casing is formed of material having a higher coefficient of thermal expansion than the spindle so as to prevent overheating due to friction. For large diameter spindles the stationary casing may be arranged within the spindle. The stationary casing may be made of bronze or cast iron and the spindle of steel, and the lubricant may be contained in a vessel 9 in which any escaping air collects in order to exert a back pressure and prevent further escape of air. The chambers 8 are externally air tight. The air may supply a cylinder concentric with the spindle and containing a piston connected to the chuck by a hollow draw-bar or may supply cylinders containing pistons which operate the jaws 16, Fig. 2. The device may also be used in connection with a fluid-operated bar feed, wherein the stationary casing 5 supplies air to a cylinder 19, Fig. 3, containing a piston 20 which is reciprocated to cause dogs 21 to grip and release the work. In a further modification two adjacent cylinders are provided, one for actuating the chuck jaws and the other for the bar feed located within the chuck, both being operated through draw-spindles.
Patent GB-102298-A (GB)
Title: Improvements in Fastenings for Sliding Windows & the like.
Inventor: PARKER THOMAS
IPC: E05B63/20
Filed: 1916-03-07
Abstract: 102,298. Parker, T. March 7, 1916. Latches, sliding.-A latch or bolt d mounted in a casing e on the lower sash b is shot by a spring f and is held in the retracted position by engagement with the stop h. When the window is closed, a projection i on the socket c on the upper sash a passes through a slot in the base of the casing e and lifts the bolt clear of the stop, so that it is automatically shot out by its spring.
Patent GB-622316-A (GB)
Title: Process for removing metal oxides or metal salts from heavy metal surfaces and cleaning preparations therefor
IPC: C23G1/19
Filed: 1947-02-05
Abstract: A process for removing metal oxides or metal salts from the surfaces of heavy metals e.g., rusty iron or heavy metal alloys, which are resistant to alkalis, wherein the surface is treated with an alkaline solution of an aromatic oxy-compound containing at least two neighbouring hydroxyl groups.  The solution may contain an alkali hydroxide, and may contain a reducing agent capable of reducing ferric iron to ferrous iron e.g., an alkali hydrosulphite, and/or a thickening agent.  The process is preferably carried out with the substantial exclusion of atmospheric oxygen.  Among the aromatic compounds which may be used are polyhydric oxy-compounds of the benzene series containing at least two neighbouring hydroxy groups e.g., catechol, protocatecheric acid, and gallic acid, also naturally occurring p  compounds such as quercetin, tannin, ellagic acid, and degredation products of lignin or saponification products of tannin, sumach extract, or gallnut.  Several examples are given of compositions and processes in accordance with the invention.
Patent GB-284717-A (GB)
Title: An electro-magnetic device permitting the practical realisation of television
IPC: H04N5/782
Filed: 1928-02-03
Abstract: 284,717. Thurm, L. Feb. 5, 1927, [Convention date]. Television apparatus; copying-telegraphs.-In a copying-telegraph the object is explored by a plurality of photo-electric cells 1 each producing a record on a steel band 4, and the bands are subsequently connected in sequence to a transmitter. At the receiving-station the processes take place in the reverse order. Each cell explores only a portion of the image, which is explored completely by the set of cells, and photoelectric currents after amplification at 2 pass to an electromagnet 3 which makes the record on the band. The bands or wires are in the shape of a spiral and are so held by a disc 4<a>. The bands mav be so mounted that a record can be made on both sides of the discs (Figs. 4 and 5, not shown). The records then travel successively, in given order, between the poles of an electromagnet which occupies the usual place of a microphone in a transmitting station, thus modulating the emitted waves (Fig. 6, not shown). At the receiving end metallic bands are sent, synchronously with those at the transmitting end, between the poles of an electromagnet which occupies the usual place of a telephone or loudspeaker in an ordinary receiving set (Fig. 7, not shown). The records so produced travel simultaneously, in an arrangement similar to that shown, between the poles of electromagnets in circuits the currents of which, after amplification, act on optical devices which reproduce the image, for example on a screen.
Patent GB-828190-A (GB)
Title: Improvements in or relating to sinking head boxes for moulds for casting steel or other metals
IPC: B22D7/10
Filed: 1958-02-03
Abstract: 828,190. Ingot moulds. VALLAK, E. Feb. 3, 1958 [Feb. 4, 1957], No. 3480/58. Addition to 731,324. Class 83 (1). A sinking head box made of combustible or charrable porous and gas-permeable material, as described in the parent Specification which is referred to, has at least part of its surface facing the interior of the mould, provided with one or more layers of exothermic material. There may also be provided on top of the exothermic layer or layers, a layer of such a nature as to prevent the cast metal absorbing carbon from the combustible or charrable material. Specification 753,789 also is referred to.
Patent GB-900998-A (GB)
Title: Method of finishing textile dyeings and prints
IPC: D06P3/66
Filed: 1960-02-01
Abstract: In the dyeing or printing of cellulose textiles with reactive dyestuffs, any unbound dyestuff is subsequently removed by treatment with an aqueous preparation containing an anion-active dispersing agent in which the cation is the residue of a nitrogenous organic base.  The dispersing agent may be derived from a primary, secondary or tertiary amine and suitable agents are the salts of 12-20 carbon atoms fatty acids with tertiary amines, such as dimethylcyclohexylamine oleate, and quaternary ammonium compounds in which the anion is derived from a 12-20 carbon atoms fatty acid, such as tetramethyl ammonium oleate.  The aqueous preparation may also contain a soap, such as sodium or potassium oleate, and/or a non-ionic dispersing agent, such as polyvinyl pyrrolidone or a polyglycol ether of a higher alcohol or a phenol, and/or a compound containing at least one <FORM:0900998/IV (b)/1> group, such as aminoacetic acid, methylamino acid or an amine of the formula:- <FORM:0900998/IV (b)/2> in which R1 represents a hydrogen atom, an alkyl group of at most 3 carbon atoms or a hydroxymethyl group, R2 represents a hydrogen atom or a methyl group and n is a whole number not greater than 4.  As the reactive dyestuff, dyestuffs of all classes with the usual reactive groups are listed.  Examples of dyeing and printing are given.
Patent GB-1091463-A (GB)
Title: Foamed polymeric materials
Inventor: IBBOTSON ARTHUR
IPC: C08J9/14
Filed: 1965-01-27
Abstract: Foamed polymers are obtained by mixing a monomeric compound of the formula <FORM:1091463/C3/1> wherein R1, R2 and R3 represent alkyl radicals which contain from 1 to 4 carbon atoms or hydrogen and A represents a divalent hydrocarbon, ether, polyether, acetal, polyacetal, ester or polyester residue; together with a cationic polymerization catalyst and a volatile foaming agent and allowing the mixture to foam.  The preferred monomer is the glycidyl ether of 2 - hydroxymethyl - 3,4 - dihydro-2H-pyran although other compounds corresponding to the above general formula are also specified.  The cationic catalysts, which represent 0.2 to 3% by weight of the composition, are strongly prototropic acids, e.g. perchloric, fluoroboric and hydroiodic acids, or Lewis acids, e.g. FeCl3, SnCl4, PF5, SbF5 and particularly BF3 complexes.  These catalysts are conveniently used as 5 to 50% solutions in suitable solvents such as glycol monoethers, nitromethane, nitrobenzene, butyrolactone, acetone, n-butanol or diethyl ether.  The preferred foaming agents, representing 2 to 30% of the total composition, are volatile liquids such as halogenated hydrocarbons, preferably containing at least one fluorine atom, e.g. monofluorotrichloromethane among others. According to a further feature of the invention an additional ingredient which, under the conditions for cationic catalysts, either reacts with the compounds of the above general formula or polymerizes with itself may be present.  Such additional ingredients are heterocyclic compounds containing one or more unsaturated ether groups, monovinyl ethers, alcohols, phenols, carboxylic acids, epoxides or vinyl-aromatic hydrocarbons and numerous examples are specified.  In particular, compounds containing two or more dihydropyran nuclei may be used.  Among the conventional additives suggested are surfactants of the silicone and siloxane oxyalkylene copolymer type, flame retardants, dyes, fillers, stabilizers, anti-oxidants, extenders, plasticizers and viscosity modifying copolymers and rubbers.  The various ingredients are mixed by stirring and quickly poured into a mould and allowed to foam to a staale froth which sets to a rigid or flexible foam as desired.
Patent GB-176610-A (GB)
Title: Method of producing silicon-manganese-chrome steel
Filed: 1921-01-31
Abstract: 176,610. Fairweather, H. G. C., (Avesta Jernverks Aktiebolag). Jan. 31, 1921. Alloys.-Silicon-manganese-chrome steel low in carbon is made by preparing a bath of steel of the required carbon content preferably in a Martin furnace and adding thereto in the furnace, immediately before tapping, the required amount of ferro-manganese. The ferro-silicon and ferrochrome, preferably previously melted together in an electric furnace, are thereafter added to the steel in the ladle.
Patent GB-265976-A (GB)
Title: Tools for inserting and withdrawing screw studs
IPC: B25B23/10
Filed: 1927-02-09
Abstract: 265,976. Sauveur, H. Feb. 13, 1926, [Convention date]. Studding-chucks.-In tools for inserting and extracting screw-studs, of the kind comprising an abutment which engages the end of the stud and supports the jaws so that a coned body may slide axially thereon for closing them, relative axial movement is permitted between the threaded gripping parts of the jaws and the abutment. In one form the gripping jaws c<1>, Fig. 1, are connected to the abutment d by means of pins e and slots f which are inclined at approximately the same angle as the flanks of the thread i on the stud so that when the jaws are closed from the position shown by the coned body b they may ride along the surfaces of the threads without injuring them. In another form, the pins e are replaced by springs, preferably laminated, and the slots f are then perpendicular to the tool axis. In another form, the jaws are formed in two parts c<1>, o, Fig. 4, relative axial movement being permitted by springs p and the pins e<1> being perpendicular to the tool axis. In still another form, the abutment is formed in two parts d<1>, d<2>, Fig. 6, permitting slight axial movement against the pressure of a strong spring r. In each case the jaws have projections k sliding in slots l of the body to prevent their rotation, and are pressed apart by intervening springs.
Patent GB-797939-A (GB)
Title: Improvements in fuel hods
IPC: F24B15/04
Filed: 1957-02-04
Abstract: 797,939. Coal hods. LETHBRIDGE, Sir H. W. Feb. 25, 1957 [Feb. 4, 1957], No. 3717/57. Class 52(1) The rim of the mouth of a domestic fuel hod is formed with a V-shaped notch A to facilitate the scooping and pouring of fuel.
Patent GB-840660-A (GB)
Title: Improvements in or relating to a heat-exchanger system
IPC: F28F27/00
Filed: 1957-02-04
Abstract: 840,660. Heating and cooling moulding apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 4, 1957 [Feb. 7, 1956], No. 3767/57. Class 87(2). [Also in Group XIII] A system in which a fluid such as water at super-atmospheric pressure, or a gas or a fluidized particulate material is used to regulate the temperature of a mould used in the making of articles of thermo-setting or thermo-plastic material, comprises a heat exchanger associated with the mould and a fluid in which a temperature variation as between one part of the fluid and another, is maintained, said fluid having a hot portion separated from a cold portion by an intermediate portion in which there is a temperature gradient from hot to cold, maintained by supplying heat to the hot fluid portion and withdrawing heat from the cold fluid portion. Fig. 1 shows such a system in which the fluid supplying heat to or withdrawing heat from the mould 5 moves in a circuit comprising conduits 1, 7 and one or other of the parallel-connected conduits 2, 3, 4. Valves 10, 11, 12, 15, 16, 18, 19 are so actuated either mechanically (as shown) hydraulically or electrically, that before passing to the mould 5 the hot fluid portion is directed through conduit 2 wherein it is heated in heat exchanger 8 and the cold fluid portion is directed through conduit 4 wherein it is cooled in heat exchanger 13. A further arrangement is described, Fig. 3 (not shown), in which the fluid is shunted back and forth through the mould heat exchanger. Figs. 5 and 6 show the lower section of a two-part mould. The system fluid, in which the temperature variation is maintained, is circulated through the channel 43 in a part 42. The mould shown may be additionally heated by fluid circulated through a channel 45. The part 42 carries the moulding plate 46 of the mould.