baber/WOPTO huggingface dataset:
Patent GB-269266-A (GB)
Title: Improvements in or relating to inductance coils
IPC: H01F27/32
Filed: 1926-01-25
Abstract: 269,266. Rooke, E. E. Jan. 25, 1926. Transformers.-Electric inductance and transformer coils, applicable to radio and X-ray apparatus, are formed from a conductor provided left on the winding spokes or are bent up or 2, Fig. 7, or with an enclosing open sleeve-like network surrounding and closely in contact with the conductor or with the intermittent rings 4, Fig. 4, or with such other disposition of insulating material that, along any straight line on the surface of the conductor 1, there will be a series of spaced insulating humps in contact with the conductor and acting as spacers with intermediate air-gaps when one turn is laid on or by the side of another, the spacing humps being joined in adjacent turns of conductor by insulating adhesive to form a self-supporting coil. The insulating material may be absorbent and may be cotton, silk, cellulose, hemp, ebonite, celluloid or vulcanized fibre. One or more insulating threads may be wound in coarse spirals around the conductor, one being left-handed and one right-handed if two spirals are used or a flat strip 3, Fig. 2, may be wound edge on to the conductor. The conductor may be wound into helical coils which may be multi-layered with the conductor axially traversed between layers or into flat spiral coils or into honeycombe coils or into coils comprising wave-wound layers 5, Fig. 7, alternating with one or more helical layers. In the form shown in Fig. 7, the loops of the waves may project as shown and are bound together or left on the winding spokes or are bent up or alternately up and down around adjacent helical layers during winding. The conductor 1 may be covered with insulating enamel, cotton or silk before applying the insulation 2, 3 or 4. During winding, the wire is run through a bath of cellulose dope, paraffin wax or shellac varnish to bind adjacent turns and layers together. Alternatively, if the turns of the conductor are widely spaced in the coil, the wound coil may be dipped into the bath of adhesive insulation. The wound coil may be bound with thread or tape or covered with celluloid or ebonite, or thin threads may be interwoven between layers. The Provisional Specification describes modifications in which an insulating strip or ring is placed between layers of multi-layered coils, the strip being preferably triangular in cross-section to vary the spacing according to the potential difference between turns.
Patent GB-563386-A (GB)
Title: Improvements in or relating to the construction of reinforced concrete floors and roofs
IPC: E04B5/06
Filed: 1943-02-09
Abstract: 563,386. Floors; girders. POULTER, J. H. Feb. 9, 1943, No. 2134. [Class 20 (iv)] A pre-cast reinforced concrete beam unit 20 for floors or roofs is of angle section, the angle contained between the flanges being less than a right angle. Fig. 1 shows the two flanges 21, 22, reinforced by three steel rods 23, tied together by wires 24. Many examples are shown of assemblies of these girders back to back and used to form solid or hollow floors, monolithic or with wooden floors above, with attached or suspended ceilings below. Thus, Fig. 4, a solid floor is reinforced by rods 32 passing through holes 25 in the vertical flanges. In Fig. 11, the cavities between the vertical flanges of the pair of units are filled with concrete or coke-breeze 30. Two span floors are described with adjacent or meeting ends of the beams in alignment and secured to an intermediate support.
Patent GB-555224-A (GB)
Title: Improved aluminum hydroxide powder and process of preparing the same
IPC: C01F7/44
Filed: 1942-02-19
Abstract: 555,224. Aluminium hydroxide. STERLING PRODUCTS, Inc. Feb. 19, 1942, No. 2235. Convention date. Feb. 4, 1941. [Class 1 (iii)] Aluminium hydroxide powder is prepared by emulsifying the hydroxide gel with a viscous oil and removing substantially all the water by drying. Oil of the white oil type is preferred for emulsification but vegetable or animal oils or low melting fats may also be used. Aluminium hydroxide gel containing 6-7 per cent water may be emulsified with white oil and dried so as to leave a product containing 2-15 per cent oil and about 2 per cent water. The product is stated to possess high neutralizing power.
Patent GB-719475-A (GB)
Title: A process for producing on cellulose acetate rayon dyeings fast to cross-dyeing
Filed: 1952-01-28
Abstract: Dyeings on cellulose acetate rayon, having a good fastness to cross-dyeing, are obtained by treating the material in an aqueous ammoniacal bath containing an organic solvent having a weakly basic reaction, e.g. mono- or di-ethanolamine, and a mixture of 1-amino-2 : 5-dimethoxy-4-nitrobenzene and an alkali metal salt of 1-(21:31-hydroxynaphthoylamino) - 2-methyl-4 methoxybenzene or 1-(21:31-hydroxynaphthoylamino) -2-methoxybenzene or 1-(21-hydroxy carbazole-31-carboxylamino-4-chlorobenzene, effecting diazotization on the fibre e.g. with aqueous sodium nitrite-hydrochloric acid and then developing the dye in a hot bath, e.g. aqueous sodium acetate. The bath may also contain the condensation product from oleic acid chloride and an albumen decomposition product, preferably lysalbic acid, according to Specification 413,016.
Patent GB-284242-A (GB)
Title: Process for the manufacture of derivatives of the anthraquinone series containing nitrogen
IPC: C09B1/28
Filed: 1928-01-24
Abstract: 284,242. I. G. Farbenindustrie Akt.- Ges. Jan. 25, 1927, [Convention date]. Anthraquinone derivatives, some of which are dyestuffs for cellulose acetate. silk are produced by the interaction of hydroxyanthraquinones containing at least two hydroxy groups in p-position to one another with ethylenediamine. In an example quinizarin is introduced into ethylenediamine hydrate. Crystals of a salt-like product of the two compounds at first separate but on warming, the new product is obtained. When quinizarin can no longer be detected spectroscopically the mass is diluted, filtered and after washing with hydrochloric acid and water is recrystallized. Compounds are similarly prepared from purpurin and 1:2:4:5: 8-pentahydroxyanthraquinone by means of ethylenediamine hydrate. In another example, a dyestuff is produced by introducing 1:4:8-trihydroxyanthraquinone into ethylenediamine, hydrate. The reaction liquor heats up and the product is isolated as in the foregoing example. The colours and spectra of solutions of the above-mentioned products in sulphuric acid and also in mixed sulphuric and boric acid are tabulated in the Specification. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the treatment of any hydroxyanthraquinone with ethylenediamine. This subject-matter does not appear in the Specification as accepted.
Patent GB-414071-A (GB)
Title: Car propeller for kilns and the like
IPC: F27D3/04
Filed: 1933-01-25
Abstract: 414,071. Tunnel furnaces. BRITISH CERAMIC SERVICE CO., Ltd., and HOFFMAN, C. A., 121, West George Street, Glasgow. Jan. 25, 1933, No. 2377. [Class 51 (ii).] Charges, conveying.-A fluid-pressure ram 1 for propelling cars through tunnel furnaces is provided with interchangeable heads 24, Fig. 2, and 34, Fig. 5, so that the ram may be disposed at car level when used with furnaces having a side entrance for the cars and at a lower level, to permit passage of the cars over it, in the case of furnaces having end charging openings. The head 24 is fitted with a projecting spring 63 to cushion the impact with a car, and carries a bracket 25 to which is secured a cable 26 passing round a pulley 27 and connected to counter-weights for returning the piston 11 on completion of the charging stroke. The piston 11 is formed with a recess 20 into which fits, with a substantial clearance, a convex portion 21 of a plug 22 mounted on the tubular pistonrod 18, a cross pin 19 being provided for pivotally securing the parts together. The impact between the piston 11 and the rear wall 6 of the cylinder 1 is cushioned by a spring- pressed buffer plate 13 which, when the piston is fully retracted, covers the fluid supply and discharge aperture 16. The head 34, Fig. 5, which may be substituted for the head 24, has side extensions supporting an axle 36 which carries wheels 37, running on a fixed track 38, and has pivotally mounted thereon an upstanding dog 39 normally held vertical by a spring 40. The dog 39 has an inclined surface 41 with which an incoming car contacts to depress the dog and keep it depressed until the car has passed, whereupon the dog is returned by spring 40 to operative position. The head 34 carries a wedge-shaped counter-balancing member 42 which extends into the hollow piston rod 18 and is supported by set screws 45 adjustably secured in the lower wall thereof. Fig. 9 shows a modification in which the wheels 37 are replaced by a carriage 49 having two sets of wheels and of sufficient length to extend completely under one car and partly under the next. In operation, when the piston reaches the limit of its charging stroke, a limit switch is operated to actuate valves to cut off the pressure fluid supply, the counterweights carried by the cables 26, Fig. 2, or 47, Fig. 5, then becoming effective to return the piston to starting position. In the event of failure of the limit switch, the piston is brought to rest by the uncovering of the safety outlet 52. The fluid used is oil and is supplied to the pipe 17 by a rotary pump, Fig. 20, comprising a rotor 54 having oppositely disposed plungers 55 which, during rotation, are reciprocated in the pockets 56 by contact with the inner race of an eccentrically mounted ball-bearing 57. The latter is adjustable in position to vary the length of stroke of the plungers 55. The rotor 54 is formed with passages 62 which, in operation, register alternately with inlet and delivery openings 65, 66.
Patent GB-1138722-A (GB)
Title: Improvements in or relating to fabrics
IPC: D04H5/02
Filed: 1966-01-19
Abstract: 1,138,722. Laminated fabric. APPLETON WIRE WORKS CORP. 19 Jan., 1966 [8 Feb., 1965], No. 2467/66. Heading B5N. [Also in Division D1] A fabric formed by sewing filaments together comprises a plurality of substantially straight and parallel segments of rack filament 12 disposed in a plane, one or more sewn filaments 16, 18 stitched in parallel rows transversely across the rack filament segments, a filler 14 of non-woven fibres sewn to the rack filaments by the sewn filament or filaments, and means bonding the or each sewn filament to the filler filaments and the segments of rack filaments. The fibres used in the fabric may be one or combinations of man-made fibres, e.g. viscose, nylon, polyester, e.g. Dacron (R.T.M.), acrylic, fluorocarbon and glass materials, or natural fibres e.g. cotton, and may be or treated to be non-absorbent of water. The fabric may include metal or mineral fibres. The fabric fibres may be bonded by adhesive resins. In one method of forming the fabric, Fig. 4, a web of filler 14 is fed into contact with rack filaments 12 spaced in parallel relationship on a rack 24, and the assembly passes beneath a sewing machine head 32 where the filler is sewn to the filaments 12 by sewn filaments 16, 18. To prevent weakening of the filaments 12 by piercing with the sewing machine needle the stitches are made between them or a dull needle is used. In an alternative method of making the fabric the rack filaments are looped round pegs at each end of a rack so that a single sheet is produced. In a method of making the fabric in the form of an endless belt, e.g. for use as a Fourdrinier wire in a paper-making machine, the filaments 12 are individually spliced to form closed loops, or a single rack filament is wound helically about a group of supporting rolls. The sewn filaments 16, 18 may be of different diameters or different materials to impart different properties to the faces of the fabric, e.g. one surface may be made abrasion resistant and the other smooth. The filaments may be sewn using a lock stitch, a two filament chain stitch, or a single filament chain stitch. The rack filaments, which may be mono-filaments, may be concentrated at various points, e.g. at the centre or edges, to provide greater strength there, or filaments of different diameters can be used. Filler may be applied to both sides of the rack filaments or vice versa. The filler filaments are preferably longer than the space between adjacent sewn filaments, and the needle holes formed in the filler may be reduced by shrinking the filler about the holes, e.g. by heat, e.g. during curing of the bonding resin. The fabric may be used as a filter, in which case it is permeable, as upholstery or drapery material, as a wall covering, or as conveyer belting e.g. as an absorbent felt in a papermaking machine.
Patent GB-1488021-A (GB)
Title: Magnetic separation
IPC: B03C1/02
Filed: 1974-01-18
Abstract: 1488021 Magnetic separation ENGLISH CLAYS LOVERING POCHIN & CO Ltd 17 Jan 1975 [18 Jan 1974] 2543/74 Heading B2J Apparatus for separating magnetisable particles from a fluid, e.g. a slurry of water and a mineral in which they are suspended comprises a canister I of non-magnetic material having an inlet and an outlet; a matrix of ferromagnetic material 2 within the canister, the matrix being constituted by filamentary material having substantially all its filaments aligned in a direction generally parallel to the general direction of flow of fluid through the matrix; and means such as electromagnetic coils 3 for establishing a magnetic field transverse to the said direction of flow. The filamentary material may fill about 3% to 75% of the total volume occupied by the matrix and may have a diameter in the range of from 25 to 50 Ám, the filaments being at least 5mm, preferably at least 10mm, in length. In another embodiment, the filaments are arranged in a chamber formed between two foraminous plates of non-magnetic material, e.g. a bronze wire mesh, arranged parallel to the axis of a horizontally disposed cylinder of non-magnetic material (Figs. 2 and 3, not shown).
Patent GB-177305-A (GB)
IPC: B23B31/12
Filed: 1921-08-13
Abstract: 177,305. Johnson, J. Y., (Verlstygsfabriksbolaget Ekstein & Anderson). Jan. 19, 1921. Chucks.-Endlon pressure on a drill or other article held in a chuck, as well as resistances to rotation, are utilized separately to tighten the grip. Endlong pressure acting on a central block 8 causes balls 26 to be moved outwards, and hence a member 6 to be moved downwards, this member pressing the chuck jaws 18 downwards, against springs 21, and thereby tightening the grip. The jaws slide in notches 22 in the member 6, so that resistance to rotation of the drill tends to check the rotation of the member 6 relatively to the sleeve 1. Balls 13, mounted between radial faces on the sleeve 1 and oblique faces 12 on the member 6, then come into action, tending to push the jaws down. An outer sleeve 3 is connected to the sleeve 1 by means of a helical groove 4<a> containing balls and by the friction of a spring 2. The outer sleeve can be checked by hand to open the chuck during running. In a modified form the surfaces 7, on which the balls 26 act, are inclined circumferentially as well as radially, the balls 13 being omitted.
Patent GB-594764-A (GB)
Title: Improvements in free piston type internal combustion compressors
IPC: F02B71/04
Filed: 1944-02-11
Abstract: 594,764. Combustion-product plant. ENGLISH ELECTRIC CO., Ltd., and WELSH, R. J. Feb. 11, 1944, No. 2595. [Class 7 (i)] In an internal-combustion compressor of the free-piston type and comprising two opposed pistons operating in a common cylinder, a synchronising linkage between the pistons is omitted and the pistons have an inherent tendency to return to inner dead centre positions symmetrically disposed about a selected transverse plane through the cylinder. Opposed pistons operating in an engine cylinder 1 are each integral with a compressor piston 5 in a pump cylinder 2 and a buffer piston 6 in a cushion cylinder 3, the engine cylinder having inlet ports la connected by passages 15 with the delivery outlets of the compressors and exhaust ports 16 leading for example to a gas turbine. Fuel, ignited by the compression, is supplied through an injector 9 by a pump 30 actuated by fluid pressure from the combustion space as described in Specification 226,523, [Class 7 (iii)], the pump plunger being cleaned by an air blast taken from a cushioning space 3 through a narrow pipe 8. Linked throttles 20 control the inlets to the compressors. In operation, if a piston makes an unusually long stroke the pressure in the cushioning chamber 3 rises abnormally and although the energy in the air trapped in the buffer chamber 3 decreases, the chambers are so proportioned that more energy is availableto return the piston. The abnormal pressure ejects air past a non-return valve along a pipe 24 depresses a spring-pressed piston 26 in a cylinder 25 before the excess pressure is relieved through an escape port 25a. Displacement of the piston rocks a lever 28 to actuate the fuel regulator 30a of the pump 30 to reduce the charge for the next impulse and the increased pressure in the cushioning chamber 3 returns the piston assembly to its normal inner dead centre position, an escape port 3a in the chamber 3 limiting the operation of the pressure or the chamber may be provided with automatic inlet and outlet valves 17, 18, the latter being spring loaded. Alternatively, the piston 26 may operate the air throttles 20 and the fuel control be manual. A narrow pipe 19 connecting the cushioning chambers 3 damps piston oscillation at the inner dead centre position. The leak 25a in the cylinder 25 may be replaced by a servo-motor adapted to supply pressure fluid to or drain off from. the cylinder 25. In the case of a vertical engine, pressure reservoirs are employed to balance the weight of the two piston assemblers either as a whole or individually. A running indicator constructed similarly to the cylinder 25 and piston 26 may be provided on the pipe 24. Specifications 586,989, 595,546, [Group XXVI], 595,547, and 598,530 ,also are referred to.
Patent GB-1044252-A (GB)
Title: Improvements in or relating to a lock nut and method of manufacturing same
IPC: B21K1/70
Filed: 1964-01-21
Abstract: 1,044,252. Locking nuts. LAMSONS & SESSIONS CO. Jan. 21, 1964 [Jan. 21, 1963], No. 2680/64. Heading F2H. A polygonal nut has, in radial planes through the corners, the median planes of grooves 15 of limited radial depth so that the minimum thickness C of the wall at the corners in the nut body (as opposed to a crown end 14a) is not less than 90% of the thickness D at the middle of a flat of the nut body and at least some of the portions between the grooves are deflected so -that they will cause locking on a bolt. The deflection may be achieved by striking the nut crown 14a near one or more corners or flats in an axial direction, or sideways as at E or F to produce the deflections indicated in chain or broken lines, the former producing an oval end to the bore. As shown in Fig. 2, the grooves 15 extend for about onethird of the nut length and are rounded at their base and edges as indicated in Fig. 1.
Patent GB-576351-A (GB)
Title: Improvements in or relating to electric generators
IPC: H02K57/00
Filed: 1944-03-14
Abstract: 576,351. A.C. generators. SMITH & SONS (ENGLAND) Ltd., S., (formerly SMITH & SONS (MOTOR ACCESSORIES), Ltd., S.), and MEREDITH, F. W. March 14, 1944, No. 2744. [Class 35] A generator has an unwound rotor of hysteresis material without teeth or salient poles in which alternating magnetic poles are induced by an A.C. exciting winding on the stator, current being generated in a second winding on the stator of the same frequency as that fed to the exciting winding irrespective of the rotor speed. In the form shown the plain cylindrical rotor 12 co-operates with a stator 14, 15 having slots which open outwards and are closed by a ring 16. The stator windings may be arranged similarly to those of a two-phase induction motor.
Patent GB-1131671-A (GB)
Title: Improvements in or relating to jet engines
IPC: F02K1/00
Filed: 1966-01-21
Abstract: 1,131,671. Deflecting propulsive thrusts. M.A.N. TURBO G.m.b.H. 21 Jan., 1966 [21 Jan., 1965], No. 2765/66. Heading B7G. An exhaust system for an aircraft jet engine has a jet pipe 3 pivotable between a non- deflecting position in which its axis is substantially aligned with the axis of an upstream portion of the system and a deflecting position in which the two axes are inclined to each other (e.g. by 90 degrees). The upstream portion terminates in a chamber 4 containing turning vanes 7 spaced from its axis, the jet pipe 3 extends into the chamber, and when in the deflecting position, its upstream end is positioned behind the vanes. An afterburner 12 is fitted to the jet pipe.
Patent GB-487489-A (GB)
Title: Improvements in or relating to transmitting antenna systems
IPC: B41B5/12
Filed: 1938-01-28
Abstract: 487,489. Aerials ; wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 28, 1938, No. 2836. Convention date, Jan. 28; 1937. [Class 40 (v)] An aerial system arranged to transmit lowangle vertically-polarized radiation comprises a plurality of horizontal aerials spaced radially round a central point, each aerial being at least half a wavelength in length, and arranged a short distance above the earth, and designed to produce maximum radiation in a direction away from the feeding point. In Fig. 1 the radially-disposed horizontal aerials 5, which are of the Beverage type as described in Specification 175,315, [Class 40 (v)], are energized cophasially through matched transformers 1 from the common transformer 2 which is coupled to the transmitter 6 through the transmission line 4. The opposite ends of the aerials are earthed through surge resistances 3 to prevent reflection. The length of the aerials may be between a half wavelength and three wavelengths, and they may be disposed at equal angles, e.g. 60‹, or not according to whether a uniform or horizontally directive radiation is desired. In Fig. 2 (not shown) the aerials bisect one another and are energized cophasially at one end and earthed through surge resistances at the other.
Patent GB-658855-A (GB)
Title: Improvements in or relating to variable pitch propellers and control mechanisms therefor
Inventor: HAWORTH LIONEL
IPC: B64C11/42
Filed: 1949-02-02
Abstract: 658,855. Variable pitch propellers. ROLLSROYCE, Ltd. Feb. 2, 1949, No. 2926. [Class 114] The pitch-varying motor 15 during normal operation is supplied with operating fluid obtained from the engine lubricating circuit 21 through the pipe 45, pump 35 and governor controller valve 33. For feathering the electrically driven pump 47 is operated, this obtaining its fluid from the engine lubricating reservoir 18 through the pipe line 49. To avoid overcharging the lubricating circuit during feathering the return from the feathering pump is led through the non-return valve 61 direct to the reservoir 18.
Patent GB-794989-A (GB)
Title: Improvements in or relating to a formed carbonaceous article, e.g. an electrode, andprocess of making same
IPC: H05B31/16
Filed: 1955-02-01
Abstract: Articles, e.g. electrolytic anodes, electrodes, heat-exchanger elements, seal rings, electrical brushes and contacts, bearings or refractory parts for ovens are moulded from, e.g., 20 to 30 per cent of bituminous coal and 70 to 80 per cent of graphite.  The graphite may be natural, electric furnace graphite, decomposed silicon carbide or calcined petroleum coke.  The coal may be replaced by pulverized or pulped wood, sugar, pitch, raw petroleum coke or fuel oil.  It is also stated that any of these materials may be used with each other or raw petroleum coke may be used on its own.  Particles of mica, copper or <PICT:0794989/III/1> tungsten may also be added.  The material is placed in a chamber 19 in an oven heated by electrodes 22, 23, the material acting as the resistance element.  Pressure is applied during heating by plungers 38, 39 which also prevent the escape of gases.  The articles may be subjected to graphitization during or after moulding.  A hollow article may be made by placing a piece of hardwood in the mould which disintegrates on heating.  The Specification includes many examples of the process.