baber/WOPTO huggingface dataset:
Patent GB-127667-A (GB)
Title: Improvements in or relating to the Control of Aerial Machines.
IPC: B64D7/02
Filed: 1917-05-18
Abstract: 127,667. Soc. Dite " Spad " Soc. Anon. pour l'Aviation et ses Derives. July 22, 1916, [Convention date]. Machine guns.- Consists in fitting a control lever a of an aerial machine with a trigger b<20> for operating the machine gun, the trigger being pivoted in a loop b<2> on the lever and connected to the gun by means of a Bowden wire e.
Patent GB-658688-A (GB)
Title: Improvements in the manufacture of electrical coil assemblies
IPC: H01F41/12
Filed: 1949-03-16
Abstract: 658,688. Electric coils; electric transformers. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 16, 1949, No. 7228. Convention date, June 15, 1948. [Classes 35 and 38 (ii)] The winding layers 1 of a coil are separated by strips 2 of insulating material, e.g. polythene, of greater width than the coil itself, the completed coil being encased by moulding in molten thermoplastic material which fuses with the plastic strips. The end connections 4, 5 are soldered as at 7 to a lead 6 insulated by a tube 8 and covered by an adhesive tape 10 which is covered by an outer strip 9 secured by adhesive tapes 11, 12. The temperatures and pressures used for moulding are moderate to avoid damaging the coil and suitable substances for the strips and moulding plastic are mentioned.
Patent GB-841741-A (GB)
Title: Improvements in or relating to calciferols
IPC: C07C401/00
Filed: 1958-03-06
Abstract: The invention comprises etiocalciferol, etioprecalciferol, esters thereof and a process for the production of etrocalciferol, or an ester thereof, characterized in that irradiation is effected of a solution of D 5, 7-androstadiene-3b -ol, the irradiated solution is treated at a temperature in the range 40 DEG -110 DEG C, preferably 80 DEG C, with citraconic anhydride, evaporation to dryness is effected, the residue is saponified, esterification of the resulting hydroxy group containing material is effected, and the resulting ester of etiocalciferol is isolated and if desired, the last mentioned material is saponified to obtain free etiocalciferol. Esterification with 3,5-dinitrobenzoyl halide produces the 3 15-dinitrobenzoate of etiocalciferol. Etiocalciferol or an ester thereof is obtained in a process wherein irradiation is effected of a solution of D  5, 7-androstadiene-3b -ol, their radiated solution is treated at an elevated temperature with citraconic anhydride, evaporation to dryness is effected, the residue is saponified, esterification of the resulting etiocalciferol is effected, the resulting ester is isolated, the last mentioned material is heated in an inert organic solvent therefor, any unchanged ester of etiocalciferol is separated from the resulting ester of etroprecalciferol and the last mentioned material is isolated and if desired saponified to obtain free etioprecalciferol.  Esterification with 4-methyl-3, 5-dinitrobenzoyl halide gives the 4-methyl-3, 5-dinitrobenzoate of etiocalciferol from which the 4-methyl 3, 5-dinitrobenzoate of etoiprecalciferol is obtained.
Patent GB-871905-A (GB)
Title: Electromagnetic couplings and components therefor
IPC: F16D27/112
Filed: 1959-03-03
Abstract: 871,905. Electromagnets. EATON MANUFACTURING CO. March 3, 1959 [March 6, 1958], No. 7302/59. Class 35. [Also in Group XXIV] An electromagnetic coupling has a stationary core 11 and energizing coil 17, a rotatable polemember 15 secured to a shaft 13, and a rotatable armature 12 slidably mounted on a second shaft 14. The pole member comprises concentric annular polepieces 44, 45 connected by a thin web 46 in which are radially-spaced circumferential slots 61, 62 (Fig. 2, not shown) to give it a high reluctance. The polepieces extend towards the armature on one side of the web and have friction material 51 between them, while on the other side they are shaped to overlap the core 11 at 71 and 72. The intermediate portions 71a and 72a have inlet holes 74, and exit holes 75 for cooling air which is carried through the space surrounding the coil by centrifugal action. In an alternative arrangement (Fig. 1, not shown) the pole-pieces overlap internally of the core and no ventilating holes are provided. The core is bolted to a fixed framework 18 and houses a bearing 29 which supports the pole member 15.
Patent GB-329730-A (GB)
Title: Improvements in or relating to alternating current metallic vapour lamps
IPC: H05B41/22
Filed: 1929-03-06
Abstract: 329,730. Silectra Ges., Geffcken, H.. and Richter, H. March 6, 1929. Metallic-vapour apparatus.-In an alternating current metallic-vapour lamp 1, Fig. 1, having, a cathode 4 arranged between one main anode 2 and one subsidiary anode 3, which serves to maintain the discharge, each anode 'deals with one half-cycle of the current; the subsidiary anode is arranged nearer to the cathode than the main anode so that the arms are of different lengths, the circuit in which is connected the main anode being connected directly to the mains, while the circuit containing the sudsidiary anode is connected to the mains through a transformer 5. The shorter arc may burn with a lower current density than the longer are and the transformer may accordingly be of comparatively slight dimensions. A choke 8 and a resistance 9 are connected in the circuits. In a modification, Fig. 2, the cathode 4 and subsidiary anode 3 are arranged at one end of the tube, a discharge between these electrodes being initiated by tilting. When the lamp contains a gas filling the electrodes 3, 4 are arranged so close together that starting takes place of its own accord. To facilitate starting the transformer may have a large leakage. A choke 11, which may be wound on the core of the transformer, is connected in circuits as shown.
Patent GB-1375287-A (GB)
IPC: B65G33/16
Filed: 1972-02-17
Abstract: 1375287 Screw conveyers SBL SOMERS 17 Feb 1972 [17 Feb 1971] 7391/72 Heading B8A [Also in Division F1] A flexible tubular conveyer for transporting granular or powdery products or fluids, Fig. 1, comprises a flexible conduit 1 with a flexible rotary propeller 2 inside. The propeller 2 comprises a helicoidal spring 3 driven at one end 6 by an electric motor 7 and free at its other end 4 which faces an end wall 5 of the conduit 1. A series of generally trapezoidal wings 11 is attached by a body 9 to a wire 10 (the body 9 and wire 10 forming the spring 3), as shown in Fig. 2, and when the wire 10 is coiled the wings 11, suitably deformed in manufacture, assume the form of a coreless screw constituting the propeller 2. The wings 11 may overlap slightly at the centre of the screw or a central hole may be left. Each wing 11 may be moulded in one piece with its associated section of the body 9, adjacent sections being threaded on to the wire and notched to interengage, Figs. 7, 10 (not shown), in the latter case the wings form several discontinuous screws. In the embodiment shown in Fig. 12, symmetrical double blades 26, 27 interconnect two identical, but longitudinally separated helicoidal springs 24, 25. Fig. 13 shows an injection moulded part 27 forming one turn of a screw in a flexible conduit 32 and threaded on a helicoidal spring 33. The part 27 comprises a ramp 28 with helicoidal wings 30, 31 disposed alternately on either side of the ramp. Successive parts 27 touch by their end faces 34 to form a continuous flexible screw.
Patent GB-900361-A (GB)
Title: Improvements in or relating to moulded coil holders
IPC: H01F1/03
Filed: 1960-03-02
Abstract: 900,361. Transformers. SIEMENS & HALSKE A.G. March 2, 1960 [March 24, 1959], No. 7427/60. Class 38 (2). A ferrite core designed to hold a coil or coils is provided in its annular side 3 and/or base 1 with slots to accommodate the coil leads, the edges of the slots being rounded or bevelled to avoid damage to the leads.
Patent GB-139638-A (GB)
Title: Improvements in rotary motors
IPC: F01C1/344
Filed: 1919-03-26
Abstract: 139,638. Parry, E. M. March 26, 1919. Fixed-abutment type; packing drums, vanes, etc.; working-fluid supply.-A rotor 1 carries a spring- pressed sliding vane 4 which has stops 17 to limit its outward movement, and is arranged so as to be radial to the curve of the stator pockets 3 when passing the central point of any pocket. In a rotary internal-combustion engine, the charge compressed by a pump 12 is delivered past cam-actuated valves 7 to the pockets 3 behind the vane 4, where it is ignited. Exhaust takes place through pipes 8. The semicircular cross-section of the rotor periphery, Fig. 2, is of greater diameter than that of the vane. Packing-strips are provided. More than one vane may be used, and instead of employing stops 17 on the vane, the outward movement of the vane may be restricted gradually by a cam-incline on the stator.
Patent GB-373687-A (GB)
Title: Improved safety catch for mine trucks, waggons and the like
IPC: B61G7/14
Filed: 1931-03-12
Abstract: 373,687. Locking vehicle wheels. DOWSON, J., Woodland House, New Washington, Co. Durham. March 12, 1931, No. 7589. [Class 103 (i).] The wheels of mine trucks &c. are locked in the event of breakage of the haulage connection d by a pawl b secured to the sliding drawbar a and urged into engagement with a toothed wheel c on the wheel axle by a spring e. A transversely movable lever f carries a wedge piece for engagement with a projection h on the draw-bar whereby the looking device can be rendered inoperative when desired.
Patent GB-1180291-A (GB)
Title: Improvements in Alternators
IPC: H02K11/04
Filed: 1967-02-17
Abstract: 1,180,291. Alternators providing a D.C. output. ROBERT BOSCH G.m.b.H. 17 Feb., 1967 [18 Feb., 1966], No. 7659/67. Heading H2A. An alternator 10 having rectifier elements, e.g. of semi-conductor type, to provide a D.C. output, has arranged on one end a common cooling body, e.g. 17 so shaped from sheet metal as to form in itself a cavity 19 in which are disposed at least some, 24 ... 26, of the elements and over which cavity extends a common insulating plate, e.g. 30 carrying connecting conductors for the elements. As shown, there are two such bodies, 17, 18, of circularring sector shape, containing six elements connected to the alternator 3 ph. star-connected stator winding via the plate conductors 42 ... 48 which are printed, connecting studs 33 ... 35, cable tags, and leads such as 57. The elements 24... 26 and 27 ... 29 are respectively soldered to their bodies 17, 18 which are secured to a bearing end plate 16 by screws 59 and carry a connection prong 54 connectable to a battery. The body 18 also carries rectifier elements 51 ... 53 which supply via slip rings 12, 13 a field winding on a claw-pole rotor whose shaft 11 is driven, e.g. by an I.C. engine. The brush holder 56 forms a guide for a socket insertable on the prong 54. Voltage regulator components, e.g. resistors and capacitors, may be arranged on the printed circuit. There may be a number of elements in parallel in each phase, with their soldered connections sufficiently weak or of low melting point as to automatically fuse in the event of failure.
Patent GB-434955-A (GB)
Title: Improvements in card clothing
IPC: D01G15/86
Filed: 1934-03-12
Abstract: 434,955. Card clothing. CLEGG, E. C., 12, King Street South, Rochdale, and CARD CLOTHING & BELTING, Ltd., New Bond Street, Halifax, Yorkshire. March 12, 1934, No. 7732. [Class 120 (iii)] Card clothing comprises wires 5, Fig. 1, set in a foundation composed of a strip of woven fabric or leather 1, and a strip of sponge rubber 2 with or without vegetable, animal, or mineral fibres 3, the strips being secured together by vulcanization, rubber solution or a flexible adhesive. The exposed face of the sponge rubber 2 is faced with solid rubber or leather 4 vulcanized thereto or attached by rubber solution or adhesive. In a modification, the positions of the outside strips are reversed the solid rubber 8, Fig. 3, forming the backing while composite strips of canvas 6 are secured to the face of the sponge rubber 7.
Patent GB-384151-A (GB)
Title: The manufacture of new disinfecting, anti-parasitic and insecticidal agents
IPC: A01N59/00
Filed: 1932-03-16
Abstract: Disinfecting, antiparasitic and insecticidal agents are made by treating the sulphonation product of a natural mineral oil, or of an oil obtained from the distillation of combustible minerals, with a hydroxy acid or salt thereof or a polyhydric alcohol, in the presence of a suitable metallic salt and an alkali.  Suitable oils are petroleum oils, or oils from the distillation of bituminous limestones or schists, lignites or coal.  Oils rich in sulphur may be used or they may be artificially sulphurized.  The metallic salt may be a sulphate of a metal having the desired insecticidal and like properties, such as copper or lead, and must not be used in a quantity greater than that necessary to form the sulphonate.  It may be added initially either to the hydroxy acid or the sulphonic acid. Salts of citric or tartaric acid, polyhydric alcohols such as glycerine, glucose, or saccharose, or mixtures of these may be used, the proportion of hydroxy acid or the like to the metal corresponding to the minimum necessary for solution.  Alkali is added to give a neutral or feebly alkaline product, which forms a stable solution with water.  According to an example, 100 kgs. of sulphonic acid obtained as above are agitated with 50 kgs. of copper sulphate, 25 kgs. of sodium potassium tartrate, and 40 litres of commercial ammonia.  30 per cent soda solution is added until feebly alkaline. The Specification as open to inspection under Sect. 91 states that the product may be made into a paste and may give with water a colloidal suspension.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1358381-A (GB)
Title: Circular knitting machine with patterning mechanism
IPC: D04B15/68
Filed: 1972-03-21
Abstract: 1358381 Knitting machines T F ST CLAIR LANGHAM 21 March 1972 [24 March 1971] 7889/71 Heading D1C In advance of each feed of a circular multifeed knitting machine, there is provided a selector unit comprising rotary cam means 11 driven from the knitting machine which operate pattern butt displacing cams 16 through intermediate members 20 which, under the control of pattern means through pulsing circuitry, are or are not allowed to be operated by the cam means 11. A stack of twelve cams 11 are mounted in a casing 10 each being offset from the next by one spline on a twelve splined vertical shaft 12 with, secured on its lower end, a twelve toothed pinion 14 which meshes with a ring gear 15 concentric with the cylinder and having the same number of teeth as the number of needles in the cylinder so that the stack rotates once per each twelve needles. Cams 16 on pivoted arms 17 carried on a pivot pin 18 can be retracted into the casing 10 against stops 19 or projected therefrom so that faces 16a act on any protruberant jack butt in the relevant plane to push the jack inwards. Armatures 22 pivoted on pin 23 and coplanar with cams 11 each have two limbs 22a ,22b terminating respectively in tip 22c which engages recess 20a in the corresponding slider 20 and a lobe 22d armature 22 to the corresponding arm 17 to hold cam 16 against its stop 19. Each limb 22b has a pole piece 27 which can be moved on or pulled off a permanent magnetic yoke 25 common to all the armatures. When the lobe 22d of an armature 22 is opposite a recess in its cam 11 and a high amplitude pulse is applied to a coil 26 opposing yoke 25 polepiece 27 is pulled off by its spring 24 and the tip 22c of limb 22a advances the corresponding slider 20 into "selected" position where the end 20b will be acted on by formation 11c which moves it to "operative" position. When formation 11c has passed tail 20b, the slider is pulled back to "reset" position by the spring and returned to "home" position by the formation 11d on the rotary cam. The armatures are immediately reset on their magnets by the ending of recess 11b and the remaining magnets are held during the selection by their cams 11 which do not have a recess at this position. Pulsing may be by "bits" of uniformation from e.g. a punched tape with a longitudinal row of holes for each feed and transmitted through a reader.
Patent GB-231203-A (GB)
Title: Improvements in and relating to metallurgical furnaces
IPC: C22B5/00
Filed: 1925-03-24
Abstract: 231,203. Helfenstein, A., and Helfenstein-Elektro-Ofen Ges. March 24, 1925. Metallurgical furnaces; shaft furnaces.-Hightemperature chemical and metallurgical processes are carried out in a shaft-like furnace in which the material to be treated, being fed dewnwardly at the sides, forms at g a trough, which, with the arch b, constitutes a high temperature chamber. The incoming material sliding down the furnace walls protects them from the heat and is itself preheated. In the case of a reduction process, combustion of gases issuing from the reduction zone takes place in the chamber above the trough g, or liquid, gaseous or pulverulent fuel may be supplied from an outside source. Tuveres h project into the shaft forming the base of the furnace. In a modification, the side channels for the supply of the charge are more steeply inclined and the feed is entirely by gravity. Specification 233.540 is referred to.
Patent GB-345800-A (GB)
Title: Process of making cellulose acetate
IPC: C08B3/06
Filed: 1930-03-11
Abstract: <PICT:0345800/IV/1> In the manufacture of cellulose acetate by treating cellulosic material with acetic anhydride vapour in the presence of a catalyst, the acetic acid vapour liberated in the reaction is retained in contact with the material until the latter is acetylated.  The reaction may be performed by heating the cellulosic material mixed with the catalyst in a closed vessel containing a pool of acetic anhydride, the vessel being preferably first evacuated. The cellulosic material may be purified or surgical cotton wool, tissue paper, bleached sulphite wood pulp, cotton linters that have been given a mild alkaline boil and bleaching treatment, or cellulose derivatives such as lower acetates, nitrates or ethers.  The catalyst may be sulphuric or p-toluenesulphonic acid.  As shown, the cellulosic material 11 mixed with the catalyst is placed in a jacketed vessel 1, and an open vessel 9 containing acetic anhydride is supported above the material.  The vessel is exhausted through a pipe 7, the exhaust pipe is closed, and the vessel then heated to 60-65 DEG  C. until the reaction is completed.
Patent GB-628102-A (GB)
Title: Improvements in or relating to stator structures of turbines and similar fluid flow machines
IPC: F01D9/04
Filed: 1945-11-30
Abstract: 628,102. Turbines and compressors. ATKINSON, J. Nov. 30. 1945, No. 7981/48. Divided out of 628,036. [Class 110(iii)] In axial-flow turbines and compressors the stator blades 1 are secured in rings built up of thin metal laminae 3. The rings may be spaced by solid rings 4, or, the whole inner stator may be laminated. Three blade fixings are shown. In one, the slot for the blade root 6 is cut in all but the outside laminae and the roots are secured by cross pins 3a through the outside laminae. In another, the slot is cut through all the laminae and the root 7 has shoulders 9 which are engaged by rings 8. In another, the root 10 is of the fir-tree type and extends through all the laminae. The root slots may be inclined to the axial direction. Specifications 628,100 and 628,101 are referred to.
Patent GB-126781-A (GB)
Title: Improvements relating to Electric Motor Control Systems.
IPC: H02P1/04
Filed: 1918-05-13
Abstract: 126,781. Miller, L., and British Westinghouse Electric & Manufacturing Co. May 13, 1918. Master control systems.-In a control system with contactors operated electro - magnetically or pneumatically, the contactor which renders one section of the resistance inoperative also renders inoperative one coil on a relay which controls the actuation of the next contactor, and inserts another coil on the relay arranged to permit the relay to close only when the motor current has fallen to a predetermined value. The circuit of the armature 1, Fig. 1, is completed by switches 9, 10 for forward rotation and by the switches 13, 14 for reverse rotation. The resistance sections 3 - - 6 are controlled by contactors 17 - - 20 actuated by coils 21 - - 24 respectively in circuit with relays 25 - - 28. Each relay has a coil in series with the resistances; the first relay has a shunt winding 37 and the others have windings controlled by the contactors. With the master controller in the position shown, a circuit is completed through the interlock 42 and coil 41. and this closes the switch 40 to complete the circuit through the coil 37. In the position a of the controller, the switches 9, 10 are closed and the motor runs with all the resistance in circuit. The operation of the switches 9, 10 opens the interlock 38 breaking the circuit of the coil 37 and leaving the relay 25 dependent on the series coil 30. When the controller is in position 6 and the current drops sufficiently, the relay 25 drops to complete the circuit of the actuating coil 21. This closes the contactor 17 to cut out the resistance 3 and the coil 31 of the relay 26 substituting relay coil 34. With the controller in its full-speed position c and a sufficient drop in current, the relay 26 drops to complete the circuit of the coil 22, thereby closing the contactor 18. This short-circuits the resistance 4 and substitutes the coil 35 of the relay 27 for the coil 32. The actions of the relays 32, 33 are similar to those of the relay 31. Interlocks 44, 45, 46 ensure the operation of the contactors in the correct order. The interlock 42 is controlled by the overload coil 43. In the modification shown in Fig. 3, shunt coils 106, 107, 108 are used on the relays 26, 27, 28 instead of the series coils 31, 32, 33 shown in Fig. 1. 'Interlocks 109, 110 111 actuated by the contactors 17, 18, 19 are in circuit with the shunt coils. The switching arrangements with either series or shunt coils may be applied to control the resistance in the rotor circuit of a three-phase motor. The contactors may be pneumatically operated but electrically controlled.
Patent GB-891485-A (GB)
Title: Method of and means for damping flexural movements of a surface
IPC: F16F1/377
Filed: 1958-03-13
Abstract: The flexural movements of a surface are damped by rigidly attaching thereto a coupling member of substantially uniform thickness and rigidly attaching to the coupling member a layer of material extensible and compressible under stress, the material of that layer having a flexural loss factor greater than that of the surface, and the coupling member having an elastic modulus which in the direction from the surface to the layer is equal to or, preferably, greater than that of the layer.  The elastic modulus is the dynamic Young's modulus, and is a complex quantity R+jX, where R is a real and jX an imaginary term.  The flexural loss factor is the ratio X/R.  The surface to be damped may be of sheet steel, or of glass.  The coupling member preferably has a negligible flexural loss factor, and may be of foamed polystyrene, slotted to provide greater stiffness in the direction normal to the surface, or of rigid polyurethane foam or an acrylic resin or of metal, cardboard or other honeycomb structures, and may contain some damping material, when the latter is applied by spraying. The damping layer may be of an asphalt-sand composition, or plasticized polyurethane, or a viscoelastic adhesive of the kind used in safety glass or viscoelastic polyethylene or polyvinyl acetate with an inorganic filler.  A transparent product may be obtained if the surface is of glass, the coupling member of polystyrene or transparent acrylic resin and the damping layer of viscoelastic adhesive or viscoelastic polyethylene.  In a modification, the damping layer comprises not a continuous layer, but spaced strips, which may be all parallel or may intersect orthogonally, or to form equilateral triangles.  Projections on the surface to be damped, provided by scoring or heavy sand-blasting or by adding spacer projections, may serve as the coupling member, and the damping layer be applied thereto.