baber/WOPTO huggingface dataset:
Patent GB-355373-A (GB)
Title: Improvements in or relating to the manufacture of magnetically loaded electrical conductors
IPC: C21D9/54
Filed: 1930-05-27
Abstract: In the annealing process according to the parent Specification, in which a magnetically loaded electrical conductor is led through a continuous annealing furnace at about 950 DEG  C. before it is treated coiled up in a pot at about 475 DEG  C., the conductor emerging from the continuous furnace is fairly rapidly cooled, for instance at a rate of between 300-400 DEG  C. a minute till it approaches 100 DEG  C.  This cooling takes place in a cooling tube of the same length as the furnace tube, and on leaving the cooling tube the conductor passes through a jet of water to reduce it to atmospheric temperature.  The desired final permeability of the loading is obtained by regulating the pot annealing which may last about four hours.  During the pot treatment the loaded conductor may be shielded from the atmosphere by surrounding it with copper.
Patent GB-952628-A (GB)
Title: Process for preparing, spraying and drying latices of vinyl chloride polymers and copolymers
IPC: C08F14/06
Filed: 1960-05-09
Abstract: In a process for the manufacture of vinyl chloride polymers in pulverulent form, 0.2 to 4% by weight of the polymer of a coating agent which is an ester of a polyhydric alcohol with 1 to 3 mols of a fatty acid, a polyglycol ether of a polyhydric alcohol, a phosphoric or phthalic acid ester of a C6- 20 alcohol or a polyglycol ester of a semiester of one of the above alcohols and phosphoric or phthalic acid, is incorporated in an aqueous emulsion of the polymer of vinyl chloride or mixture thereof with not more than 20% by weight of a comonomer, and the emulsion is then spray-dried. The emulsion may be prepared by polymerizing vinyl chloride with or without comonomer, in the presence of an emulsifier that is soluble to at least 30% by weight in benzene at 25 DEG C. and of which a 0.05% by weight aqueous solution has a surface tension of at most 32 dynes per centimetre. Specified emulsifiers are the alkali metal and ammonium salts of diesters of sulphosuccinic acid, addition products of alkali metal bisulphites and vinyl phosphonic acid esters, and polyglycols.  The polymerisation may be effected in the presence of initators, e.g. hydrogen peroxide and alkali metal persulphates, optionally together with reducing agents such as sodium dithionite, alkali metal sulphoxylates and hyposulphites. Specified comonomers are vinyl esters of fatty acids, vinylidene chloride, and esters of acrylic, maleic and fumaric acids. Polymerization may be effected continuously with continuous addition of reactants and withdrawal of latex. Examples describe the polymerization of vinyl chloride in the presence of the emulsifiers (1) sodium diisononylsulphosuccinate, (2) sodium diisodecylsulphosuccinate, (3) addition products of sodium bisulphite with the n-decyl, isotridecyl and cetyl esters of vinyl phosphonic acid, and (4) condensates of ethylene oxide with isobutyl phenol, isononyl phenol, isodecyl phenol, isotridecyl phenol, lauric acid, stearic acid and sebacic acid; and the addition of the coating agents (1 to 4) diglycerol monostearate, (5) diglycerol sesquioleate, pentaerythritol monolaurate and sorbitan monostearate, (6) a condensate of ethylene oxide with pentaerythritol monolaurate, (7) a condensate of propylene oxide and diglycerol distearate, (8) monobutyl di-ethyl-hexyl phosphate, (9) a condensate of ethylene oxide with dibutyl phosphoric acid ester, (10) a condensate of ethylene oxide and dilauryl phosphoric acid ester and (11) a condensate of propylene oxide with monooctyl phthalate, before spray-drying. The pulverulent products may be compounded with conventional plasticizers, e.g. dioctyl phthalate to give stable plastisols.
Patent GB-612684-A (GB)
Title: Improvements in or relating to a metal working machine
IPC: B21D25/02
Filed: 1946-05-30
Abstract: 612,684. Angular bending; stamping. GREEN, L. B. May 30, 1946, No. 16451. Convention date, June 21, 1945. [Class 83 (iv)] In a machine for bending flanged sheets by clamping the sheet between a stationary die 13 and a die 16 on a carriage 17 moved by a hydraulic cylinder 31 bending arms 24 swung about pivots 26 by hydraulic cylinders 42 effect bending whilst the flange is restrained between the die 16 and projections 24a on the arms 24. The die 16 is mounted on a carriage 17 pivoted on a post 18 on the slide 15 and is moved normally to the bed 11 by a hydraulic cylinder 19 for removing completed work by an ejector 62 operated by cylinder 61. To prevent canting of the die 16 during operation, lugs 56 on the carriage 17 engage lugs 57 on the slide 15 and a projection 59 on the slide engages a recess 58a on the frame. A wedgeshaped arcuate thrust member 52 on the slide 15 engages the rear of the carriage 17. The fixed die 13 is supported by a thrust abutment 39 secured to the frame. Oil pressure for the cylinders is provided by a pump 35.
Patent GB-1322488-A (GB)
Title: Gas mixer
IPC: B01F23/10
Filed: 1971-05-21
Abstract: 1322488 Gas mixers AVL AG 21 May 1971 [22 May 1970] 16471/71 Heading B1C A gas mixer for the production of streams of gases, each stream being of a predetermined ratio of mix of component gases and having a constant rate of flow, is characterised in that for reach component gas the flow system comprises a high precision pressure regulator 9 and a following set of two orifice plates 10, 11 arranged in parallel. Each plate exhausts into a pipe associated with it alone, the pipe together with an appropriate similar pipe of at least one of the other flow systems being connected to a further pipe 15 from which a desired stream of mixed gases will emerge. The orifice plates are mounted in a temperature controlled metal block. The orifice plates are preceded by a sintering filter 8, the pore sizes of which are about the same as the diameter of the holes of the orifice plates.
Patent GB-500652-A (GB)
Title: Improvements relating to follow-up systems for sensitive indicators
Filed: 1937-06-14
Abstract: 500,652. Electric signalling systems. systems. SPERRY GYROSCOPE CO., Ltd., HARDING, W. G., and NISBET, R. H, June 14, 1937, No. 16487. [Class 40 (i)] A repeater or other object is driven by a servomotor controlled in part by an instrument the position of which is to be reproduced, and in part by a follow-back from the servomotor, corrections for errors in the indications of the instrument being introduced in the follow-back. In Fig. 2, the follow-up member of a gyro - compass operates a selsyn transmitter 2. The signals are applied to the rotor of a selsyn receiver 5<1> and the voltages induced in the stator control a servomotor 34 which drives the shafts 6<1> and 6 so that the shaft 6 carrying the rotor of 5<1> follows the transmitter. A worm on the shaft 6<1> drives a compass card 12 associated with which is a device for automatically determining the Northsteaming error and moving a rack 20 a vertical distance in proportion to the error. The rack 20 engages a differential 33 connecting the shafts 6 and 6<1> so that the movements of shaft 6 and rack 20 are added. A reversing gear 85 enables both the shafts 6 and 6<1> to turn in the same direction. An amplifier 37 suitable for connection between the receiver 5<1> and the servomotor 34 is described in Specification 417,995. A synchronizing device 38 is also provided to enable the indications of the follow-up member and the uncorrected indications of the compass card 12 to be brought into agreement initially. A fixed pointer 13 and a moving pointer 29 give corrected and uncorrected readings respectively. In the modification shown in Fig. 4, the servomotor is controlled as in Fig. 2, but the correction is introduced in the follow-back by arranging the shafts 6 and 61 on different axes so that compass cards 12 and 12<1> are eccentric. A lever 57 can be adjusted relative to the card 12 by a screw 58 and carries a pin 56 which engages a radial slot in the compass card 12<1>. The correction introduced for " damping error " is controlled by the screw 58. Ships' speed and latitude are allowed for by moving the receiver 5<1> in slides 66 and 67 to vary the eccentricity of the connection between cards 12 and 12<1>. In a modification, similar to that shown in Fig. 4, the transmitter 2 and receiver 5<1> are of the step-by-step type and the pin 56 and slot arrangement are replaced by electrical contacts which cause current to pass in one direction or the other through the servomotor 34 according to the direction of rotational displacement of card 12 relative to card 12<1>. Correction for North-steaming error may be applied as described in Specification 461,424, [Group XX]. Specifications 500,647 and 500,648, also are referred to.
Patent GB-236919-A (GB)
Title: Improvements in means for balancing the inertia effect of reciprocating screens and other reciprocating masses
IPC: F16F15/22
Filed: 1925-06-26
Abstract: 236,919. Amme, Giesecke, & Konegen Ges., and Strohbach, P. July 12, 1924, [Convention date]. Machinery, utilizing inertia to obtain movements in.-Reciprocating or oscillating masses such as sifting screens are balanced by flexibly or resiliently connecting two such masses in such a way that the oscillations positively imparted to one set up oppositely directed oscillations in the other. In the construction described, two screens a, f are suspended by flexible or resilient supports d, e, g h, from bars i, k supported by means of a knife edge on bearings l, m on the frame of the machine. The flexible or resilient suspensions of the two sieves are connected by means of adjustable rigid clamps n, o and the screen a is positively driven by an eccentric rod b.
Patent GB-864970-A (GB)
Title: Improvements in or relating to typographic line casting machines
IPC: B41B11/72
Filed: 1959-05-14
Abstract: 864,970. Type-bar-making machines. LINOTYPE S.p.A. May 14, 1959 [May 17, 1958], No. 16525/59. Class 100(3) Galley-mechanism. Slugs for texts to be read from right to left and therefore to be reversed before entering the galley pass after ejection from the mould to a guide 14 supported on a rotary platform 10, being retained in the guide by a stop 15. When the metal pot C moves about its axis A towards the mould to cast the subsequent slug, a thrust member 1 fixed to the pot engages the arm 3 of a lever 2 pivoted at 5, a second arm 4 of the lever being pivoted at 6 to a link 7 connected to a helical spindle 8 of wide pitch, which spindle engages a nut 9 on the platform 10. The spindle 8 is thus moved down to rotate the guide 14 through 180 degrees, whereupon the slug passes out of the open end of the guide to the galley T. On retraction of the metal pot a helical spring 12 fixed to a grooved pulley 11 on the platform 10 restores the guide to its original position. The guide 14 is f rmed by two vertical parallel walls which slightly diverge at the end opposite the stop 15. During rotation, the slug is retained by a semi-circular apron 16. If it is not desired to reverse the slugs, the stop 15 is removed.
Patent GB-166036-A (GB)
Title: Improvements in ammonium sulphate saturators
IPC: C01C1/12
Filed: 1920-06-18
Abstract: 166,036. Heisch, G. P. June 18, 1920. Ammonium sulphate.-An ammonium sulphate saturator is constructed with a flat bottom and contains no pipes or apparatus except means for introducing the ammoniacal gases. The latter enter through a number of jets which discharge tangentially, and in the same direction from a circular feed-pipe. The ammonium! sulphate crystals collect in the vortex which is produced and withdrawn by means of a pipe leading from the middle of the bottom of the saturator to an ejector situated outside. In the apparatus shown, ammonia is introduced through the pipes b, and acid through the pipes k, which are provided with vents l to enable gas generated in the pipes, or air sucked in with the acid, to escape. The ammonium sulphate passes down the slot e to the ejector g.
Patent GB-111323-A (GB)
Title: Improvements in Chucks.
Inventor: FOSTER HERBERT FRASER
IPC: B23B31/36
Filed: 1916-11-17
Abstract: 111,323. Foster, H. F. Nov. 17, 1916. Chucks.-Fig. 1 shows a chuck with the jaws B in cross-section. The body A is bored eccentrically to receive the jaws, the inner surfaces of which are co-axial with the body. The jaws are moved circumferentially to grip the work by a conical-ended screw-plug D and are returned when the plug is unscrewed by a spring-pressed wedge E. The plug is screwed through a sleeve G which permits of adjustment and holds the jaws in place axially, its inner end fitting into slots cut across the ends of the jaws. In a modification, an elliptical-index plug is substituted for the conical screwed plug D.
Patent GB-1188583-A (GB)
Title: A method of friction welding
Inventor: SUTOVSKY PAVEL MOISEEVICH
IPC: B23K20/12
Filed: 1967-04-11
Abstract: 1,188,583. Welding by pressure. AZERBAIDZHANSKY NAUCHNO - ISSLEDOVATELSKY INSTITUT NEFTYANOGO MASHINOSTROENIYA. 11 April, 1967, No. 16549/67. Heading B3R. In friction welding two workpieces having abutting end portions of different cross-sectional areas the axial lengths of the workpieces being greater than their respective external radii, the external upsetting of the end portion of smaller cross-sectional area is confined and shaped by a sleeve about the end portion of smaller crosssectional area and having an internal diameter slightly larger than the external diameter of the end portion of larger cross-sectional area. A pipe 1, Fig. 1, is held in a fixed clamp 2 with a sleeve 3 rigidly secured about the end of the pipe and a tubular connecting piece 4 with an end piece of larger cross-sectional area is secured in a clamp 5 connected to a spindle 6. The spindle 6 is rotatable in bearings 7 in a body 8 acted on by an hydraulic ram 9 and a mandrel 11 arranged to rotate with spindle 6 is positioned within the workpieces 1, 4 on a shaft 12. The workpiece 4 which has a frustoconical surface engaging a frusto-conical surface on the pipe 1 is rotated and urged forwards by the ram 9 and the pipe 1 plastically deforms to fill the space within the sleeve 3. When welding temperature is reached rotation is stopped and an upsetting force is applied. The sleeve may be in one piece with the clamp 2 and the mandrel may be freely fitted on the shaft 12. In a modification the connecting piece may have a spigot projecting within the pipe end to function as a mandrel. In another embodiment a pipe 16, Fig. 3, and connecting piece 17 of similar external diameters are friction welded with a sleeve 18 to limit the external upset of pipe 16 and with a shaped mandrel 19 to permit controlled internal upset of the pipe 16. The mandrel and casing may be cooled and internal and external upsetting may be allowed simultaneously and solid bodies may be welded.
Patent GB-1091637-A (GB)
Title: Inclusion resins
IPC: A23L27/00
Filed: 1965-04-20
Abstract: Congo red is removed from an aqueous solution thereof by immersing in the solution an inclusion resin made by cross-linking cyclodextrin with epichlorohydrin.  The congo red is absorbed on the resin.ALSO:A water-insoluble inclusion resin, having the property of forming inclusion complexes with organic and inorganic substances, is based on cyclodextrin.  The resin may be made by cross-linking alpha-, beta- or gamma-cyclodextrins with e.g. epichlorohydrin, dichlorohydrin, diepoxybutane, diepoxy-propyl ether, ethylene glycol diepoxy-propyl ether or formaldehyde, or by embedding the cyclodextrin in a water-insoluble polymer such as polyamide, polyvinyl acetal, epoxy resin, nitrocellulose, acetyl cellulose, ethyl cellulose, polyacrylamide, polymethacrylamide, polyacrylate or polymethacrylate. Cross-linking may be effected in acid or alkaline, aqueous or non-aqueous media depending upon the reagents and the properties desired in the product, and may be carried out under an inert gas.  Embedding the cyclodextrin may be carried out by dispersing it in a solution of polymer, and then removing the solvent, or by polymerizing a monomer containing dispersed cyclodextrin.  The inclusion resin may be subjected to further modification.  For example, the resin may be oxidized, with conversion of secondary hydroxyl groups to aldehyde groups, and the oxidized resin then treated with hydroxylamine to form oxime-type products, or reduced by sodium borohydride or lithium aluminium hydride, or further oxidized to form carboxyl groups. In examples (1) cyclodextrin is cross-linked by epichlorohydrin; (2) cyclodextrin is cross-linked by formaldehyde; (3) a dispersion of cyclodextrin in an acetone solution of acetyl cellulose is evaporated. In further examples, the inclusion resins are used to remove Congo red, o-nitrophenol, and benzaldehyde from aqueous solutions thereof, and to separate mixtures of inorganic and organic compounds.  Example 11 relates to the oxidation ofcyclodextrin cross-linked by epichlorohydrin by periodate to form a dialdehyde derivative.ALSO:An inclusion resin made by cross-linking cyclodextrin with epichlorohydrin is used to separate (1) o-nitrophenol and p-nitrophenol; (2) phenylalanine and tryptophane; (3) p-nitrophenol, or o-nitrophenol or benzaldehyde from aqueous solutions thereof. Mixtures (1) and (2) are eluted from a column of the inclusion resin, one component being preferentially absorbed, while the organic compounds (3) are absorbed on powdered resin immersed in the aqueous solutions.
Patent GB-433738-A (GB)
Title: Improvements in or relating to crushing or fracturing machinery
IPC: B02C7/00
Filed: 1934-06-06
Abstract: 433,738. Crushing coal, coke, &c. LONG, T. A., 32, Handsworth Road, Handsworth, and POTTS, W. W., 13, Endcliffe Avenue, both in Sheffield. June 6, 1934, No. 16783. Addition to 387,508. [Class 59] In the crushing-mill according to the parent Specification the operative face of one or of each of the discs has a conical formation reducing the angle of inclination between the two faces on the narrower or discharge side of the disc axes and increasing it on the feed side, the operative face of each disc being provided with rigidly attached disintegrating or splitting projections. Both discs may be driven at the same speed. As shown the disc 10 is driven by pulley 27 and the drive is transmitted to the other disc 11 by gear wheels 28, 29, universal joint 32 and gear wheels 37, 38. The gear wheel 37 is wider than the gear 38 to enable the gears to be fully meshed when axial movement of the shaft 20 takes place against the compression of spring 24. One part of the universal joint is adjustable on its shaft by means of splines and is secured thereto by a set-screw. The disc may be a truncated cone. The discs are provided with integral spikes 12.
Patent GB-786151-A (GB)
Title: Improvements in or relating to steam traps
Inventor: MORGAN DAVID L
IPC: F16T1/10
Filed: 1956-05-31
Abstract: 786,151. Steam traps. ROBERTSHAWFULTON CONTROLS CO. May 31, 1956 [Oct. 31, 1955], No. 16873/56. Class 64(2) A steam trap comprises valves 36, 38, an element 30 expansible and contractible in response to variations in temperature or pressure, and a connection 32 between the element and the valves. The element 30 is in the form of a bellows charged with volatile liquid which changes from a vaporous to a liquid state when condensate collects around the element 30 so that the latter contracts to cause the valve 38 to open an outlet 14 to a discharge pipe for the condensate. If excessive pressure occurs due, for example, to water hammer or sudden opening of a valve in the steam line, the element 30 contracts sufficiently to cause the valve 36 partially or completely to close an inlet 12 while displacing the valve 38 to allow maximum flow through the outlet 14.
Patent GB-120048-A (GB)
Title: Improvements in Motion Picture Apparatus.
IPC: G03D15/00
Filed: 1918-10-16
Abstract: 120,048. Kodak, Ltd., (Assignees of Barnes, F. W.). Oct. 15, 1917, [Convention date]. Kinematograph apparatus. -The film 1 is formed with a series of equally-spaced marginal notches 10 disposed at points opposite to intervals between the sprocket perforations engaging with internal lateral lugs 8 formed on flanges 6 of the feed sprocketwheel 3. By this means none but the special films, e.g. non-inflammable films, can be used in the lantern, while their use in ordinary apparatus is not prevented.
Patent GB-1162521-A (GB)
Title: Improvements in and relating to Clip for Anchoring Wire Springs.
IPC: B21D53/36
Filed: 1966-04-18
Abstract: 1,162,521. Spring upholstery. JAMES M. SIBTHORP Ltd. and J. SIBTHORP. 23 Aug., 1966 [12 Nov., 1965; 18 April, 1966], Nos. 48174/65 and 16951/66. Divided out of 1,162,522. Heading A4M. [Also in Divisions E2 and F2] A channel shaped metallic clip, two sides of which are joined by a rounded bend for receiving and being closed round and journalling an end portion of a sinuous wire spring has a separate channel shaped liner of plastics material extending at least around the bend and secured by parts pressed up from the metal of the clip within the width and biting into the plastics material. The liner 2 is retained in the clip 1 by the inturned sharp edges of holes punched in the clip. Holes are also punched in the clip for screwing the clip to a frame. In modifications the liner is tapered towards its ends, it projects beyond the sides of the clip or the clip is notched to expose the liner.
Patent GB-401404-A (GB)
Title: A method of converting polyphase current of a given frequency into single-phase current of a smaller frequency
IPC: H02M5/00
Filed: 1932-06-15
Abstract: 401,404. Frequency changing; phase changing. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 15, 1932, No. 16960. Convention date, June 15, 1931. [Class 38 (ii).] In an arrangement for converting polyphase current of a given frequency into single phase current of lower frequency in which the single phase load N2 is connected between the cathodes of a pair of grid-controlled rectifiers G1, G2 and the star points of the secondary windings of a transformer T interconnecting the rectifiers with the three phase network N1, the rectifiers being rendered operative in succession to pass current alternately through the load circuit, the grid potentials are controlled by a commutator switching arrangement the contacts of which are spaced so as to cause ignition at the various anodes at such points on the polyphase voltage waves that the single phase current approximates to a sine wave. As indicated in the upper part of the figure, the grids g<1>-g<6> of each rectifier are normally negatively biassed by connection to the negative pole of a battery B the positive pole of which is connected to a brush cooperating with moving contacts connected to the grids. the spacing being such that current flows in the respective anode circuits during the shaded portions of the polyphase voltage waves 1-6 thus causing the single phase current wave to be approximately sinusoidal when inductance is present.