baber/WOPTO huggingface dataset:
Patent GB-183894-A (GB)
Title: Improvements in regenerative control systems for electric motors
IPC: B60L9/04
Filed: 1921-03-29
Abstract: 183,894. Michel, J. E. A. March 29, 1921. Systems for continuous-current motors only; regenerative systems. - Relates to starting and regenerative systems of the kind comprising a working motor or group of motors controlled by a motor-generator set and an exciter generator. According to the invention the motor D<l> of the motor-generator set has three field-windings, a shunt winding a, a series winding c, and a compensation-winding b. In starting, current from the mains is turned on through a switch P to the motor D<l>, which drives the generator D<m> up to a speed at which its voltage is equal and opposite to the voltage across the mains. By the closure of an automatic switch R, the working motor M is then connected in series with the generator D<m> across the mains, but receives no current as long as the voltages remain balanced. To start the working motor, the excitation of the generator is reduced by putting a field winding d in opposition to the normal shunt field e. The line voltage then gradually takes preponderance and speeds up the working motor. An additional counter field winding f traversed by the whole current of the generator D<m> is provided to stabilize the working. The exciter D<i> is mechanically coupled to the motor-generator and is arranged to adjust the field strength of M for driving and regeneration. Disturbing effects due to mutual induction between the three field windings of the motor D<l> and the generator D<m> may be counteracted by disposing coils in the respective leads side by side on transformer cores.
Patent GB-127966-A (GB)
Title: Improvements appertaining to Pumps.
Inventor: WALLACE JAMES
IPC: A62C35/64
Filed: 1918-06-07
Abstract: 127,966. Wallace, J., and Pringle, E. G. June 7, 1918. Valves actuated by vessels receiving and discharging liquids.-A timing-device for use in connexion with automatically controlled pumps for sprinkler-installations and fire-extinguishing comprises a vessel h for receiving liquid at a predetermined rate, and which at intervals discharges the whole or a portion of its contents, and, by means of a lever e and rod d, opens a by-pass valve b controlling the supply of steam to the pump. Weights e<3>, e<4> raise the vessel h and close the valve. The water feeding the vessel h may come from the condenser k' and is controlled by a cock m. The vessel h may be emptied by the opening of a valve h<1> when the vessel descends. In another form the vessel h is so shaped that it tilts and empties when the liquid reaches a certain level.
Patent GB-375784-A (GB)
Title: Improvements in and connected with electric press-button switches and indicators therefor
IPC: H01H13/62
Filed: 1931-03-28
Abstract: 375,784. Electric signalling systems. STONE & CO., Ltd., J., Deptford, and VIDAL, J. F. B., 18, Brandram Road, Lee, both in London. March 28, 1931, No. 9466. [Class 40 (i).] The moving contact of a pushbutton switch makes momentary contact with a fixed contact to ring a bell, and engages another contact to operate a lamp, or other indicator, until released by a mechanism incorporated in the switch. The insulating end b of the switch carries fixed contacts g<1> for the bell circuit and f<1> for the indicator circuit, the latter being spring mounted and having a pawl f<2> which engages the stub h, attached to the pushbutton d, and biased away from the spring- mounted moving contact e<1> by the spring j. Release of the stub h is effected by tilting the blade l<2> attached to the contact f<1> with the plunger p<1>. In a modification, the plunger p<1> operates from the rear of the switch or the blade f<1>, the blade l<2> being fixed.
Patent GB-449576-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K21/20
Filed: 1935-03-27
Abstract: 449,576. Pencil holders. FARRING- TON, H. M., and SHOWELL, T. E., 61, Eagle Street, High Holborn, London. March 27, 1935, No. 9494. [Class 146 (iii)] Relates to pencil holders of the type having a step-by-step adjustment of the lead. Refill leads are carried in a magazine compartment closed at the outer end by an eraser and at the inner end by a member a<4> having a dished upper surface leading to a central aperture. A tube b is attached to the lower end of the member a<4> or is formed integral with the magazine tube, and is provided with diametrically-opposite slots b<1> and an inwardlytapering lower end b<2>. Slidable in the tube b is a leadholder c having an annular groove c<2> and a split lower end c<1> adapted to be engaged by the end of the tube band forced into gripping contact with the lead. A point-section e secured in the end of the outer casing h is formed with diametrically-opposite slots e<1>, and ball bearings g are mounted in the slots b<1>, e<1> and groove c<2> On applying presure to the end of the magazine tube, the interior mechanism slides forward until the balls g engage the forward ends of the slots e<1> when the holder c is arrested ; the tube b continues to move and releases the slotted ends of the leadholder which therefore releases the lead. On release of the pressure, the spring d returns the parts until the lead-holder is stopped by the engagement of the balls with the end of the slots e<1>, the part b being further withdrawn until the end b<2> engages the end c<1> of the lead-holder and causes it to grip the lead.
Patent GB-308801-A (GB)
Title: Improvements in sound reproducing apparatus, such as loud-speaking telephonic receivers
IPC: H04R7/02
Filed: 1929-03-25
Abstract: 308,801. Bonnier, F.-X. L. H. M. G. March 31, 1928, [Convention date]. Loud-speakers; diaphragms.-The diaphragm 1 of a loud-speaher is acoustically connected to an adjustable resonator 3 having a further resilient diaphragm 2. The volume of the resonator may be adjusted by means of a drum 5 having a resilient face and actuated by a screw 6. The diaphragm 2 may be of glass, metal, wood, paper, cardboard, skin, &c., covered with thin rubber sheet 7, and may be paraboloidal, the space between it and the loud-speaker diaphragm, which may be similarly covered, being lined with felt or other sound-absorbent material.
Patent GB-217557-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/10
Filed: 1924-04-16
Abstract: 217,557. Dufay, L., (Assignee of Compagnie d'Exploitation des ProcÚdÚs de Photographie en Couleurs L. Dufay). June 11. 1923, [Convention date]. Drawings to Specification. Colour photography.-Relates to a process for producing multicolour screens, in which a celluloid or like support, superfieially dyed with one colour, is partially covered with resists, and the celluloid is decoloured at the unprotected parts, which are then dyed with a second colour, so that, on removing the resists, a two-colour screen results. According to the invention (1) the twocolour screen so produced is coloured throughout with a third colour, and (2) further resists are applied, followed by decolouring and dyeing to produce a four-colour screen. In an example, a two-colour screen is first produced by dyeing one side of the film uniformly blue, and printing thereon a series of resist lines in fatty ink. A red alcoholic colouring-bath is applied which destroys and replaces the blue dye-stuff in the unprotected. spaces. The resist is dissolved away, and a yellow alcoholic dye containing a decolouring agent is applied to the whole surface, converting the blue lines into green, and the red into orange. If a four-colour screen is desired, a fresh series of resist lines is printed on the two-colour screen at any angle to the first set of resist lines, and a blue-violet colouring-bath containing a developing agent is applied which destroys and replaces the yellow in the unprotected parts, which then exhibit the colours blue-violet and red-violet in alternate spaces. On dissolving away the resist, a four-colour screen comprising these, colours together with green and orange is obtained. Suitable dyes are rhodamine B or rhodamine N6J, malachite green or auramine, methylene blue, and crystal victoria or crystal violet. The decolouring agents may be caustic potash or soda. The Specification as open to inspection under Sect. 91 (3) (a) states that the screen may be coated with emulsion, and may be produced in long lengths for kinematography. This subjectmatter dees not appear in the Specification as accepted.
Patent GB-495190-A (GB)
Title: An improved electrolytic method of coating surfaces of iron or steel
IPC: C25D11/36
Filed: 1937-04-06
Abstract: 495,190. Electrolytic production of phosphate coatings on iron and steel. AMERICAN CHEMICAL PAINT CO. April 6, 1937, No. 9729. Convention date, May 12, 1936. [Class 41] A coating of a water-insoluble metal phosphate is produced on iron or steel by treatment as an electrode in an electrolyte containing phosphate and metal ions, the polarity of the current being reversed at least once during the treatment, the concentration of ion in the electrolyte being maintained below 0À6 per cent and preferably below 0À25 per cent by the addition of a precipitating agent. The iron content of the phosphate coating may be thereby maintained below 15 per cent. The precipitating agent may be an oxidizing agent such as a permanganate, a dichromate or hydrogen peroxide whereby the iron is precipitated as ferric phosphate, or may be sodium ferricyanide. A cathodic depolarizing agent such as nitrate of an alkali metal, magnesium, cerium or zinc is preferably also present in the solution. Nitrous acid or a nitrite may be employed as a precipitating agent in association with a different substance as depolarizing agent or as depolarizing agent in association with a different precipitating agent. Nitrous acid or nitrite should not be present in excess of 0À03 lb. per U.S.A. gallon of electrolyte. The metal ions present in the solution may be those of zinc, cadmium, calcium, cobalt, nickel or manganese. Alternating current of 25-60 cycles may be employed. The current density may be 35 amps. per sq. ft. The temperature of the bath is preferably 120 F. The surface to be coated should be gently rubbed in the dry condition prior to immersion in the electrolyte. Oil, paint or lacquer may be applied to the coatings. Specification 435,773 is referred to.
Patent GB-1246946-A (GB)
Title: Method of forming the electrode of a semiconductor device
IPC: H01L23/485
Filed: 1970-02-27
Abstract: 1,246,946. Semi-conductor devices. HITACHI Ltd. 27 Feb., 1970 [12 March, 1969], No. 9747/70. Heading H1K. An insulating metal oxide layer 15 is formed over a first oxide layer 12 on a semi-conductor substrate 10 by depositing a metal layer on the oxide layer 12 and heating to cause a reaction to occur between the metal and the oxide 12, resulting in formation of the metal oxide layer 15. The same heating stage also causes the metal layer to alloy with an exposed area of the substrate 10 to produce an alloy layer 14. In the embodiment the substrate 10 is Si containing a B-diffused region 11, the oxide layer 12 is of SiO 2 , and the metal layer is of Al, resulting in an Al-Si alloy layer 14 and an Al 2 O 3  layer 15 on heating at 700-850 C. in vacuo or in nitrogen or helium. Prior to deposition of the Al layer the exposed semi-conductor surface may be out-gassed at 200 C. Further layers 16, of Al, Cr or Ti, 17, of Au or Ag, and 18, of solder, may be added to the structure in the manner shown.
Patent GB-722122-A (GB)
Title: Improved electrical contact brush
Inventor: JONES LEONARD ELLWOOD
IPC: H01R39/20
Filed: 1952-04-18
Abstract: An electrical contact brush consisting principally of carbon or graphite contains a coumarone-indene resin.  The resin should have a melting-point between 70 DEG  and 150 DEG  C. and should be present in amounts of 5-20 per cent, preferably 8-15 per cent.  The contact brush may be carbon, natural or artificial graphite, electrographitic material or mixtures of graphite with carbon or metal.  The brush may be impregnated by placing it first under vacuum and then under pressure of a 50 per cent solution of coumarone-indene resins in toluene.  The brush is then dried and baked, e.g. for 1 hour at 150 DEG  C.ALSO:An electrical contact brush consisting principally of carbon or graphite contains a coumaroneindene resin.  The resin should have a melting point between 70 DEG  and 150 DEG C. and should be present in amounts of 5-20 per cent., preferably 8-15 per cent. The contact brush may be carbon, natural or artificial graphite, electrographitic material, or mixtures of graphite with carbon or metal.  The brush may be impregnated by placing it first under vacuum and then under pressure of a 50 per cent. solution of coumarone-indene resins in toluene.  The brush is then dried and baked, e.g. for one hour at 150 DEG  C.
Patent GB-953094-A (GB)
Title: Reduction of carbon formation in thermal hydrodealkylation
IPC: C07C4/16
Filed: 1962-03-14
Abstract: In the thermal hydrodealkylation of alkyl aromatic hydrocarbons, carbon formation is suppressed by the addition of water.  The water is preferably added in amounts to give a vapour phase concentration of 0.1-25% (mol.) and preferably being added at several points in the reactor; a water-gas reaction promoter is preferably present in the reactor, e.g. an alkali or alkaline earth metal oxide or salt such as carbonate, as a lining to the reactor or as a fixed or fluidized bed. Dealkylation is effected at 1000-1600 DEG  F., and 400-1000 p.s.i.g. for 2-120 seconds in the presence of 2000-10,000 S.C.F. of hydrogen per barrel of aromatic hydrocarbon.  The feed may be an alkylated benzene, indene or naphthalene and may contain cycloparaffins.
Patent GB-856097-A (GB)
Title: Improvements in injection moulding machines
Inventor: GROVES WALTER ROBERT
IPC: B29C45/58
Filed: 1959-03-20
Abstract: 856,097. Injection-moulding machines. BRITISH INDUSTRIAL PLASTICS Ltd. March 17, 1960 [March 20, 1959], No. 9826/59. Class 87(2). An injection moulding machine comprises a cylinder having a torpedo with radial ribs of the type integral with or attached to an end closure member secured to the front of the cylinder, an outlet and nozzle arranged in offset parallel relationship with the axis of the spreader which has heating element-receiving bores therein ; said ribs terminating short of the closure member to provide an annular material-receiving channel which communicates with the outlet and nozzle. A nozzle 5 is screwed on to a closure member 3 which is fastened on to the end of cylinder 1 and has a torpedo 4 formed integrally therewith. Ribs 11 on the torpedo terminate short of wall 12 on member 3 and leave an annular channel 13 which increases in width towards its lowermost part which communicates with an outlet bore 14 aligned with nozzle 5. Band-type heating elements 6 are provided on the cylinder and heating elements may be placed in slots 16 in the torpedo which is provided with a greater number of ribs 11 at its forward end. Piston 9 provides the injection stroke.
Patent GB-591369-A (GB)
Title: Improvements in electromagnetic wave guides
IPC: H01P1/18
Filed: 1945-04-19
Abstract: 591,369. Wave guides. MULLETT, L. B. April 19, 1945, No. 9898. [Class 40 (v)] A wave-guide is provided .with at. least one strip of dielectric material mounted so that it can be moved through a slot in the side of the wave-guide into or out of a position in which it lies longitudinally inside the guide so as to cause phase shift by interaction with the .field within the guide. As shown in Fig. 1, a strip 3 of dielectric such as glass or ceramic, 3 or 4 wavelengths long, is mounted on a metal bar 4 pivoted at 5 to the guide 2 and urged towards the guide by a spring 7. A screw 6 -enables adjustment of the penetration of the strip 3 into a slot 1 in the guide to vary the resultant phase shift. Alternatively; the bar 4 may be adjusted by a cam which may be rapidly rotated by a motor to-give a recurrent phase shift. In Fig: 3, the dielectric strip 3 is carried by a bar 4 arranged for rectilinear movement in guides 10 under the control of cam 8 and springs 7. The lower edge of strip 3 is shaped to give any desired law between the movement of the operating cam and the consequent phase,shift., For second order waves, two parallel strips movable together are provided. The invention is appli- .cable to circular wave=guides carrying first order waves.
Patent GB-910476-A (GB)
Title: Improvements in or relating to magnetic separators
IPC: B03C1/14
Filed: 1960-03-21
Abstract: 910,476. Magnetic separation. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. March 21, 1960 [April 8, 1959], No. 9928/60. Class 117. The drum 1 of a magnetic separator is rotatable on a shaft 4 on which are secured pole piece members 5. The drum is rotated by belt and pulley and the position of the polepiece members is adjustable by a screwed rod 11 connected to a tank 13. A weir 21 co-operates with the drum and an overflow weir 14 is also provided; both weirs are adjustable. The tank is fed from a number of feed-channels 17 connected to a feed-box 18 having an inlet 20. A deflector 25 is connected to deflectors 24 and is concentric with the drum. In using the apparatus, a magnetite and slurry-containing liquid to be treated passes on to the drum from the channel 17. Most of the magnetite particles are carried by the drum to pass over the weir 21 in the direction 23 and are collected. The remaining material is slightly stirred as it travels from the deflectors 24 to the deflector 25 and separation of the remaining magnetic particles is assisted.
Patent GB-783558-A (GB)
Title: Absorbent, laminated, fibrous sheet material
IPC: B32B29/02
Filed: 1955-04-05
Abstract: 783,558. Laminates; fabrics composed of threads united by adhesives. KIMBERLYCLARK CORPORATION. April 5, 1955 [Sept. 30, 1954], No. 9999/55. Classes 96 and 140. [Also in Group XIV] A laminated material suitable as a wiping material or for aprons, bibs, mats, pads and towels comprises a fibrous layer which tends to disintegrate under rubbing or wiping action with protective grilles of mutually crossing elements overlying and adhered to its opposite faces, permitting direct engagement of the fibrous layer with a surface to be wiped. The fibrous layer may consist of fibrous batting, or a number of plies of crepe tissue paper or cellulose wadding bonded together in spaced areas, and, if desired covered on both sides with a thin fibrous layer, or may comprise cellulosic fluff between layers of crepe tissue paper. The grille may be a cross-laid thread web made by passing threads 1, Fig. 8, over a roller 3 dipping in adhesive and grooved or rotated slowly so as to apply adhesive at spaced intervals, leading the adhesive-coated threads, if desired after partial drying, through a guide 6 which guides them into circumferentially spaced arrangement over a cylindrical mandrel 5, wrapping threads 2 from spools 8 on a rotating ring 7 around the threads 1 as they pass along the mandrel 5, and slitting the resulting tube with a rotating knife 10 to form a fabric web. The fabric web may be coated with loose fibres 18, Fig. 9, which are caused to adhere by hot-calendering as at 20, and may then have applied to it a web 36 comprising the desired number of layers of crepe tissue paper or of fluff and tissue paper. Another cross-laid thread fabric 39, prepared as indicated above but wound into a supply roll 38, is led therefrom and superposed on the previously assembled layers, the complete assembly being then pressed between rolls 40, which may be heated, to form the laminated wiping material. In alternative forms, the grille may be of three or more sets of threads extending in various directions, of parallel spaced threads extending in one direction and a series of parallel, spaced lines of adhesive extending transversely to the threads, or it may consist only of spaced, parallel lines of adhesive, or may be a woven gauze. The local bonding of the internal crepe tissue paper layers may be effected by locallyapplied adhesive, e.g. spaced dots, or adhesive carried on internal reinforcing strands, or by local embossing. The threads forming the whole or part of the grille, or the reinforcing internal threads, may be low twist, multiple filament threads, e.g. of continuous filament rayon or nylon. The adhesive for bonding the cross-laid threads of the grille may be polyethylene or a solution of plasticised polyvinyl acetate. Alternatively, adhesion may be effected by including thermoplastic fibres in one or both sets of yarns which cause adhesion on heating. Adhesive may be sprayed or printed on the absorbent layer or the fibre-faced cross-laid thread webs before'they are brought together. Specification 682,190, [Group VI], is referred to.
Patent HK-106596-A (HK)
Title: Telephone set
Inventor: THOMKE ERNST
IPC: H04M1/02
Filed: 1996-06-19
Abstract: The telephone comprises a handset (8) having a receiver and a microphone, and a base (2) on which the handset may be placed. According to the invention, the casing (28) of the base is fitted with another receiver and another microphone and has a shape such that the base may be used as a second handset, thereby enabling two people to converse at the same time with one outside person if the phone is connected to one line or with different outside people if the phone is connected to two lines.
Patent HK-213296-A (HK)
Title: 9-(phosphonyl-methoxyalkyl) adenines method for their preparation and their use
Inventor: HOLY ANTONIN
IPC: A61P31/12
Filed: 1996-12-05
Abstract: The invention relates to 9-(phosphonylmethoxyalkyl) adenines of the general formula Iwherein R<sup>1</sup> is a hydrogen atom, an alkyl group containing one to three carbon atoms, or a hydroxymethyl group, R<sup>2</sup> is a methylene, ethylene, propylene, ethylidene, methoxyethylene, benzyloxyethylene, tetrahydropyran-2- yloxyethy- lene, (1-ethoxyethoxy)ethylene or 1,2-0-isopropylidene-1,2-dihydroxypropylene group the method of their preparation and utilization.Compounds of the general formula I exhibit biological effects (e.g. antiviral) or can be converted into compounds with such effects.
Patent HU-T50777-A (HU)
Title: Process for producing 2-/3-pyridyl/-3-phenoxy-propionitril derivatives and intermediates and fungicide compositions containing the former ones as active components
Inventor: GADRAS ALAIN
IPC: C07D213/63
Filed: 1989-03-28
Abstract: Fungicidal compounds of formula (II): 
<IMAGE>
 in which:
 R denotes
 - a lower alkyl radical optionally substituted by one or more substituents chosen from halogen atoms, preferably chlorine, fluorine or bromine, a lower alkoxy radical, a radical -Si(CH2)xR1R2R3, x = 0, 1, R1, R2 and R3, which are identical or different, being lower alkyl, lower alkoxy, aryl (especially phenyl) or aralkyl (especially benzyl);
 - an alkenyl, preferably allylic, radical, optionally substituted as when R denotes alkyl or by a C1-C3 alkyl group;
 Y = lower haloalkoxy, preferably containing 1 to 3 carbon atoms, advantageously trifluoromethoxy, lower haloalkyl, preferably containing 1 to 3 carbon atoms, advantageously trifluoromethyl, halogen (preferably chlorine or bromine).
 n = 1, 2, 3, it being possible for Y to be identical or different when n = 2, 3.
Patent HU-T41450-A (HU)
Title: Process for preparing hardenable aluminium-based alloys by using metal casting salt mixture with complex effect
Inventor: PENTEK ISTVAN
IPC: C22C21/00
Filed: 1985-07-26
Abstract: A single step deoxidn., degassing and tempering of the molten alloy is achieved by an addn. of a salt mixt., whose granulometric distribution is proportional to lattice constant of the alloy's constituents and by the addn. of 0.2-10 w/w% radiomorphic silicic acid.
Patent HU-T41550-A (HU)
Title: Method for making wear-resisting magnetic writing and/or reading heads
Inventor: GRIMM ISTVAN
IPC: G11B5/21
Filed: 1985-07-31
Abstract: Magnetic heads are formed of laminations of magnetic sheet with interposed layers of hard material at least in the frontal zone of the heads and the lateral surfaces defining an air gap. - Hard material is pref. TiN, CrN, SiC, TaN or WN and is deposited on the sheets prior to laminating pref. by vapour deposition or sputtering.