baber/WOPTO huggingface dataset:
Patent GB-712940-A (GB)
Title: Improvements in the manufacture of bearings from plastic material
IPC: B29C43/00
Filed: 1952-04-09
Abstract: 712,940. Bearings. COMPAGNIE GENERALE D'ELECTRICITE. April 9, 1952 [April 19, 1951], No. 9057/52. Class 12(1) [Also in Group V] A bearing is formed by moulding it in two parts, [see Group V], from a thermosetting resin, e.g. graphitec " Bakelite " (Registered Trade Mark) An annular lubricating cavity opens on the internal bearing surface by means of apertures 4. The bearings may be used in the guide pulleys of belt conveyers.
Patent GB-703748-A (GB)
Title: Improvements in or relating to methods of manufacturing cathodes constituted by a plurality of individual elements and cathodes manufactured by such methods
IPC: H01J9/04
Filed: 1952-04-09
Abstract: 703,748. Powder metallurgy. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 9, 1952 [April 12, 1951], No. 9078/52. Class 83 (4). [Also in Group XL(a)] Relates to a method of manufacturing a cathode having individual identical elements, 1-6, bent to form a series of peaks, one series of peaks of adjacent elements being joined by equipotential connections of high conductivity to form a body of a star-like cross-section. According to the invention, a sintering suspension is applied to the peaks by a rotating injection needle 11 inserted through one or two mandrels 9 supporting the cathode for rotation at' each end. The cathode has twelve tungsten nickelwound elements 'which may be secured by tungsten wire 7. The ends are secured by tungsten wires or clamping rings 9 and inner rings 10. It is stated to be usual to make such equipotential connections by sintering iron or nickel powder &c.
Patent GB-296956-A (GB)
Title: Apparatus for the electrical precipitation of suspended particles from gases
IPC: B03C3/66
Filed: 1928-03-26
Abstract: 296,956. Lodge-Cottrell, Ltd., (Lurgi Apparatebau Ges.). March 26, 1928. Gases, treating electrically.-In electrical preciptation apparatus of the kind having two or more groups of electrodes operating at different potentials, reduction of the potentials of the different groups, the discharge electrodes of which are mounted on a common support and connected to a common source of high-tension, unidirectional current, is effected by the insertion of resistances in the conductors of the discharge electrodes or between the discharge and collecting electrodes. Variation in the resistance may be effected by constructing the collecting electrodes of materials which offer a varying resistance, for example, the collecting electrodes of the different groups may be covered with a badlyconducting material or be made of different thicknesses of such a material. The resistances may be so arranged that a higher potential is obtained at either the inlet or the outlet for the gases to be treated. In the form shown in Fig. 1, groups of discharge electrodes 3, 4, 5 are carried by an insulated support 2 which is in direct connection with the electrode 5, insulators 11, 15 being situated between the straps 10, 14 of the electrodes 3, 4 and the support 2. Current passes from a mechanical rectifier 6 by leads 7, 8, 12 to the electrodes 3, 4, 5, resistances 16, 17 being inserted in the last two leads. In one modification, some of the collecting electrodes are made of or coated with badly-conducting material of different thickness, the last electrode being a good conductor. In a second modification, the collecting electrodes are made of conducting materials, such as iron plates, and, except the last, are supported on layers of resistance material of different thicknesses. In precipitating-chambers having a vertical gas passage, the plates of the last modification may be arranged vertically above one another, and in this case the discharge electrodes are stretched along the whole length of the collecting electrodes.
Patent GB-472760-A (GB)
Title: Improvements in or relating to covers and frames for manholes and the like
IPC: E02D29/14
Filed: 1936-03-27
Abstract: 472,760. Road surface boxes. ELKINGTON, V. March 27, 1936, No. 9144. [Class 107] A manhole cover 10 fitting closely within its frame and resting upon horizontally projecting parts c thereof, has inclined edges, and one pair of opposite sides at least of the cover and frame are inclined in a similar sense. Thus, as indicated in Fig. 2, a section through the cover perpendicular to the said opposite sides 19, 20, is roughly in the form of a parallelogram the angles of which are not right angles. The other two sides of the cover may also be inclined in a similar sense or they may be inclined in opposite directions. The sides may be plane or curved, or again, each side may consist of an upper part a and a lower part b, the lower part having a greater inclination to the vertical than the upper part. The frame consists of four sections 23 . . 26. Fig. 1, which are channelled as shown and, which are strengthened by cross webs 27. In assembling the frame, the sections 25 and 26 are first placed against the cover and then connected by bolts to the other sections 23, 24, the bolts passing through elongated holes in cross webs near the ends of each section. Hard lead or other keying metal is then run into the chambers 30, Fig. 1, formed between the various frame sections. The cover may be filled with concrete or wood blocks and the frame sections are concrete filled preferably by being pushed down into a bed of concrete. The trench cover, Figs. 5 and 6, is formed of cover parts 10a, 10b, 10c and frame sections which are substantially similar in construction to the manhole cover shown in Figs. 1-2. The cover parts vary in size within a few thousandths of an inch and the parts 10b, 10c are in part supported by one side of the adjacent cover parts 10a, 10b, respectively. The cover part 10a and its frame sections 23, 25a, 26a, are first assembled and the frame sections 25b, 26b and the cover part 10b mounted in position. The remaining cover parts and frame sections are added in succession. The frame sections of the trench cover, and of the manhole cover above described, are ground off to the exact length if originally too long and are made up to the exact length by the keying material if too short. To facilitate removal, the covers are fractionally wider at one end than at the other.
Patent GB-530040-A (GB)
Title: Improvements in detergent and germicidal compositions
IPC: C11D3/00
Filed: 1939-03-24
Abstract: 530,040. Disinfectants. MATHIESON ALKALI WORKS. March 24, 1939, No. 9251. Convention date, March 24, 1938. [Class 81 (i)] [Also in Groups III and IVf A disinfecting composition is obtained by intimately mixing (1) a dry stable calcium hypochlorite containing at least 50 per cent of available chlorine and at most 10 per cent of calcium chloride and (2) a synthetic organic water-soluble detergent salt which does not form a precipitate with calcium ions and is (A) a quaternary ammonium salt containing at least one substituent group of at least 8 carbon atoms, or (B) an ammonium or alkali-or alkaline-earth-metal higher alcohol sulphate or long chain sulphonate. Caustic soda or potash, and trisodium phosphate, sodium metasilicate, or like alkaline salt may be added. The hypochlorite preferably contains more than 60 per cent of available chlorine and only 2-3 per cent of calcium chloride ; it may be prepared as described in U.S.A. Specifications 1,481,039; 1,481,040; 1,713,650; 1,713,654 ; 1,713,668 and 1,713,669. Detergents specified are sodium lauryl sulphate or sulphonate, ethane 1-palmitate 2-sodium sulphonate, ethane 1- (methyl-lauramido) 2-sodium sulphonate, and palmityl trimethyl ammonium chloride.
Patent GB-435056-A (GB)
Title: Improved safety-razor blade resharpening and safety-razor holding appliance
IPC: B24D15/08
Filed: 1934-03-24
Abstract: 435,056. Sharpening razors. BUCKLAND, J., 98, Stamford Road, Audenshaw, Manchester. March 24, 1934, No. 9262. [Class 60] A device for sharpening safety-razor blades comprises a casing a carrying two sharpening rollers b<1>, b<2> journalled in the casing sides a<1> and having each a gear wheel c meshing with a wheel d, the wheels d meshing together and being rotated by a handle b<5> on the axle of one of the wheels d. In a hinged or removable lid a<2> are two rollers b<3>, b<4> carrying gears c<1> meshing, when the lid is closed, with gears c<1> on the rollers b<1>, b<2>, the pairs of rollers serving to sharpen the two edges of a blade mounted on a bar h provided with projections h<1> to engage the holes in the blade. The bar has wedge-shaped ends fitting in shaped grooves in the walls of the casing a, and the upper face of the bar may be covered with wash leather &c. to support the blade resiliently. The casing a is extended to form a receptacle for a razor, the handle b<5>, and spare blades, and is covered by a separate lid a<3> or a part of the lid a<2>; it also may contain a receptacle for powder for use on the rollers. The rollers may be removable, being tubular and mounted on pins screwed through the casing walls ; the rollers are made of metal with a covering of emery powder or cloth or leather.
Patent GB-309294-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H02K1/27
Filed: 1928-03-29
Abstract: 309,294. M-L Magneto Syndicate, Ltd., and Watson, E. A. March 27, 1928. Magneto-electric machines.-The rotor of a dynamo-electric machine comprises a permanent magnet a in the form of a disc having a number of radial poles around its periphery and having a central hole c of larger diameter than the spindle on which it is mounted, a pair of non-magnetic side pieces e which engage the sides of the magnet so as to resist radial displacement of the magnet and which are formed with holes g to fit the spindle, and fastening means such as bolts or rivets f which pass through the side pieces and the interpolar spaces b of the magnet. The permanent magnet may be formed by casting, bot pressing or other operation, and the central hole c is made sufficiently larger than the spindle to avoid the necessity of grinding or machining. A recess or register d is machined on each face of the magnet near the periphery and these registers engage with corresponding parts on the side pieces. The rivets f are preferably of copper or other nonmagnetic material of high conductivity so that they provide paths for currents which serve to protect the magnet poles against excessive demagnetizing forces.
Patent GB-418110-A (GB)
Title: Improvements in fire extinguishing apparatus
IPC: A62C37/10
Filed: 1934-03-26
Abstract: 418,110. Fire-extinguishing. HUMBLET, J., 24, Rue Jacques RayÚ, Brussels. March 26, 1934, No. '9453. Convention date, March 27, 1933. [Class 47 (ii).] A carbon-dioxide fire-extinguishing plant comprises a source of compressed gas, such as a battery of cylinders 2, connected to a piping 3 provided with fusible heads 4. Each head comprises a fusible link consisting of metal strips 9, 10 united by solder 10‹, the strips having bent ends engaged respectively with a pressure screw 8 and the valve 6 and being insulated by insulation 7<1>. The links of the various heads are connected in a closed circuit with a battery 12 and electromagnet 13. The armature 15 of the electromagnet is in a normally-open circuit with a battery 21, electromagnet 17, and alarm 23. The core 18 of the electromagnet 17 is linked to a catch 19 which normally holds up a weighted lever 24 connected by links 25, 26 to the levers of the valves 20, the latter being preferably of the kind described in Specification 406,112. When a fusible head opens, the electromagnet 17 is energized, so that the lever 24 opens the valves 20 and carbon-dioxide is admitted to the piping 3. Specification 406,112, [Group XXIX], is referred to.
Patent GB-466533-A (GB)
Title: Improvements relating to electrically heated pressing irons
IPC: D06F75/16
Filed: 1936-03-31
Abstract: 466,533. Hand-irons. MASON, R. March 31, 1936, No. 9519. [Class 138 (ii)] An electric hand-iron is provided with a removable boiler 2 having tubular stays 4 through which bolts 11 pass whereby the boiler, heating-element 12 and sole plate 10 are secured together by nuts 31. A cover 23 is also secured by the bolts 11 and nuts 32. Steam passes from the dome 6 through a pipe 7 to apertures 13 in the sole plate. The handle 35 is secured at the front to a U-shaped bracket 33 which is secured by one of the nuts 32, and thumb rests 40, one on each side of the handle, are mounted on the stud 36 by which the handle is secured to the bracket 33. The rear end of the handle is secured to an L-shaped bracket 34 secured to the cover 23 by the other nut 32.
Patent GB-586442-A (GB)
Title: Improvements in or relating to the isolation of an isomeric form of benzene hexachloride
IPC: C07C17/38
Filed: 1944-05-18
Abstract: To obtain from crude benzene hexachloride a composition containing an enhanced proportion of the g -isomer to a -isomer and suitable for the manufacture of pesticidal compositions, the material (obtainable by treating benzene with chlorine at ordinary or elevated temperature while irradiating actinically, discontinuing the chlorination while unchanged benzene is still present, and flashing off unchanged benzene with hot water) is treated with a solvent comprising at least one normally liquid homologue of benzene.  The amount of the solvent being sufficient to dissolve the g -isomer and to leave a substantial proportion of the a -isomer undissolved.  Advantageously, the solvent is composed of one or more homologues of benzene containing in the molecule not more than 9 carbon atoms.  Specified solvents are: toluene, o-, m-, and p-xylenes, commercial xylene, mesitylene, cumene, and pseudocumene.  When toluene or commercial xylene is used, it may be mixed with 10 to 20 per cent by weight of the mixture of a pentane or a petrol ether fraction.  The extraction may suitably be performed in the cold with an amount of toluene or commercial xylene of about half the weight of the crude benzene hexachloride. Advantageously the desired product is isolated from the extract by adding thereto, in amount sufficient to precipitate the product, a liquid, e.g. a pentane or a petrol ether fraction, which is miscible with the solvent and which has at most a low solvent power for the g -isomer.  In examples: (1) crude benzene hexachloride (obtained by passing chlorine into benzene at 50 DEG  C. under actinic radiations, stirring the resultant solution with a large volume of water at 76 to 78 DEG  C. and filtering off the product, drying and grinding) is agitated for 2 hours in the cold with commercial xylene, the reaction mixture is filtered and the filtrate is treated with more xylene before being evaporated to obtain substantially all the g -isomer; (2) ground benzene hexachloride obtained as in (1) is agitated for 2 hours in the cold with toluene and the extract is treated as in (1) to obtain a solid containing substantially all the g -isomer; (3) crude benzene hexachloride is agitated for 1 hr. in the cold with toluene forming a slurry which is filtered and the filtrate is evaporated to obtain a solution from which substantially pure g -isomer is crystallised, further quantities of solid containing g -isomer being obtained by adding petrol-ether.  Specifications 573,689, 586,434 and 586,464 are referred to.
Patent GB-308690-A (GB)
IPC: H01H85/42
Filed: 1929-03-25
Abstract: 308,690. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). March 26, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fusible cut-outs.-A fuse wire or strip c of aluminium is enclosed in the narrow bore d of an insulating tube b. Metal end caps a are screwed &c. to the tube b, making an air-tight joint, packing being interposed if necessary. The enclosed air being heated upon the fuse blowing produces a sufficient pressure to extinguish the arc.
Patent GB-140616-A (GB)
Title: Improvements in or relating to apparatus for washing coal, coke, sand and other materials
IPC: B03B11/00
Filed: 1919-04-15
Abstract: 140,616. Harrison, J. H. April 15, 1919. Washing.-In apparatus for washing coal, coke, sand, &c. the washed material is picked up from the washing tank and delivered to a shoot or conveyer by a bucket-wheel elevator. When the material is heavier than the washing liquid the discharge end a, Fig. 2, of the washing-machine opens into a rotary drum c having a series of inwardly-projecting blades e and a perforated periphery. The material is picked up by the blades e and delivered to the shoot f. Coke and other materials lighter than the washing-liquid are picked up by a series of perforated buckets g, Fig. 4, carried by arms h attached to a rotary disk j. The material is kept within reach of the buckets by baffles k.
Patent GB-724720-A (GB)
Title: Improvements in or relating to an electrical generating system
Inventor: GILCHRIST ALBERT DEMING
IPC: H02J7/26
Filed: 1953-04-09
Abstract: 724,720. Automatic voltage-control systems. LEECE-NEVILLE CO. April 9, 1953, No. 9650/53. Class 38 (4). In an automatic voltage-control system for a variable speed, self-excited, alternator 11 supplying a D.C. load B over a main rectifier 12, the field is excited via a rectifier 37 and a saturable reactor 38 controlled by vibrating contact voltage regulator 35 and a vibrating contact current-limiting regulator 36. The control winding of the reactor, and a parallel connected auxiliary coil 54 on regulator 35, are energized at a low voltage tapped off a potential divider 70 connected across the main output, a point resistor 69 being in series and shortcircuited by the regulator contacts. In modifications, the field is excited by a three-phase rectifier with reactors in each phase, and the lower contact on the voltage regulator, which short-circuits the control winding under extreme over-voltage conditions, may be omitted.
Patent GB-637184-A (GB)
Title: The manufacture of penicillin derivatives
IPC: C07D499/00
Filed: 1947-04-11
Abstract: Esters of penicillin d -dioxide are prepared by buffering to neutrality an organic solvent solution of a compound of the general formula <FORM:0637184/IV (b)/1> where R is a lower alkyl group containing 1-4 carbon atoms or an aralkyl radical, wherein the substituents may be alkoxy, acyloxy, hydroxy, or halogen groups or atoms and reacting the neutral solution with potassium permanganate. The penicillin d -dioxide obtained has the above general formula but has two oxygen atoms attached to the sulphur atom.  Starting materials of the general formula given in which R is a methyl or ethyl radical may be prepared by reacting diazomethane or diazoethane with penicillin G.  In an example, methyl penicillin G buffered at 6.8 in dioxane is oxidized with potassium permanganate to give methyl penicillin-G, d -dioxide.  Specification 630,264 is referred to.
Patent GB-308804-A (GB)
Title: Improved treatment of iron prior to coating with tin or lead
IPC: C23G1/24
Filed: 1929-03-26
Abstract: 308,804. Radtke, G., (Matuschek Metallindustrie G. Radtke). March 29, 1928, [Convention date]. Cleaning; tinning and coating by dipping.-In a process for tinning or coating iron articles with lead, the articles are pickled, rinsed in cold or hot water and then immersed in a boiling bath containing salts of metals of the iron group, preferably nickel or cobalt salts, and of a density not exceeding 10' BeaumÚ for about ten to thirty minutes. The articles are then, with the aid of known fluxes, coated with tin or lead by immersion in a molten metal bath. The cleaning bath may be neutralized when necessary by addition of ammonia.
Patent GB-1123801-A (GB)
Title: Process for the polymerization of episulphides
IPC: C08G75/08
Filed: 1965-03-09
Abstract: Episulphides are polymerized by contacting them with a catalyst comprising a compound of a metal of Group II of the Mendeleef Periodic Table in an inert liquid medium and in the presence of an anionic or non-ionic emulsifying agent, and agitating the mixture. The catalyst may be employed in conjunction with a cocatalyst, e.g. ammonia, an inorganic ammonium compound, an organic amine, hydrazine or a derivative of hydrazine, or with a chain transfer agent, e.g. ethanediol or mercaptoethanol. The polymerization may be effected at a temperature of 0 DEG  C. to the boiling point of the reaction medium, and the catalyst and co-catalyst can be added prior to the addition of the episulphide or mixed in situ in the presence of the episulphides.  Specified episulphides are alkylene episulphides, e.g. ethylene, propylene and butylene episulphides, alicyclic episulphides, e.g. cyclohexene episulphides, unsaturated episulphides, e.g. allyl thioglycidyl ether, butadiene monoepisulphide and 1,5-hexadiene monoepisulphide, aromatic episulphides, e.g. styrene episulphide, and episulphides containing more than one episulphide group, e.g. 1,5-hexanediene diepisulphide, and derivatives of episulphides, e.g. halogen-substituted episulphides may be used.  Preferred catalysts are zinc and cadmium carbonates and the alkyls, sulphides, halides and oxides of zinc, cadmium and mercury. Specified co-catalysts are ammonium hydroxide, sulphide and carbonate, primary aliphatic amines such as methylamine, ethylamine and allylamine, diamines such as ethylene, propylene and 1,6-hexane diamines, and phenylhydrazine.  Specified non-ionic emulsifying agents are polyvinyl alcohol, polyether glycols, esters and ethoxylated polyethers and specified anionic emulsifying agents are the salts of the metals of Group Ia of the Mendeleeff Periodic Table with sulphonated alkyl, aryl, aralkyl compounds and sulphoacetate compounds.  Specified inert solvents are aliphatic organic alcohols and esters, dimethylformamide, dimethylsulphoxide and water. Stabilizers, e.g. colloids such as blood serum, glue, shellac, alginates, starch, methyl cellulose, sodium polyacrylate, polyvinyl alcohol or casein, and preservatives e.g. phenyl mercuric acetate, sodium betachlorophenate, may be added to the products.
Patent GB-701956-A (GB)
Title: Improvements in or relating to flashing direction indicators
IPC: B60Q1/38
Filed: 1952-04-18
Abstract: 701,956. Road-traffic signals on vehicles. SCINTEX. April 18, 1952 [April 19, 1951], No. 9872/52. Class 118 (2). In a vehicle direction indicator system of the type providing flashing lamps at the front and rear of the vehicle on the side to which a turn is to be made means are provided to enable the rear indicator lamps to function also as stop lamps. The rear indicator lamps 16, 26 are normally in circuit with a switch 14 operated by the brake pedal such that they are steadily illuminated when the brake is applied. When the direction indicator control switch is set to indicate a turn the current to the front indicator lamp 9 or 20 passes through a relay winding 7 or 18 respectively and operates the associated armature to disconnect the appropriate rear lamp 16 or 26 from the " stop " circuit and reconnect it in parallel with its associated front indicator lamp. The other rear lamp is thus still available as a stop indicator. To prevent the relay oscillating its contacts and thereby allowing a continuous illumination of both rear lamps when direction and stop indicators are operated together a resistor 4 is connected in parallel with the flashing device 3 (which may be a bimetallic strip) and is of such value that the current flow is sufficient to maintain the appropriate relay operated but insufficient to light the lamps. Thus simultaneous operation of direction indicator and brake causes flashing of the rear lamp on the side appropriate to the proposed turn and a steady illumination of the other rear lamp.