baber/WOPTO huggingface dataset:
Patent ES-394131-A1 (ES)
Title: Winding reconnection arrangement for a welding apparatus
IPC: H01F29/00
Filed: 1971-08-11
Abstract: A power-circuit arrangement for a welder has a transformer connected between the line-current source and the welding load with a secondary connected in series with a transductor (magnetic amplifier). The primary of the transformer has at least two windings each connected in series with respective current-carrying windings of the transductor while the secondary of the transformer has at least two windings equivalent to the primary windings. Switch means is provided for connecting the primary windings in parallel and the secondary windings in parallel and for connecting the transductor windings in parallel with one another but in series with the parallel connected primary windings in one position of the switch means. In the other position of the switch means, the primary windings are connected in series, the secondary windings are connected in series and the transductor windings lie individually in series with the respective primary windings.
Patent ES-395440-A1 (ES)
Title: Integrated magneto-resistive sensing of bubble domains
IPC: G11C11/14
Filed: 1971-09-25
Abstract: An integrated magneto-resistive sensor for detection of magnetic bubble domains. The sensor is located on the chip in which the bubble domains propagate and can be an integral part of the propagation circuitry. Any material exhibiting a magneto-resistive effect can be used, and permalloy is a preferred material. The sensing element can be made very small, and has a length which is usually about equal to a bubble domain diameter.
Patent ES-398583-A1 (ES)
Title: Loudspeaker diaphragm
IPC: H04R7/12
Filed: 1972-01-04
Abstract: A diaphragm assembly for an electro-acoustic transducer has a central soft dome portion with a semi-rigid surround such that both the dome and surround can undergo substantial excursions. An electro-acoustic transducer incorporating the diaphragm has a totally enclosed chamber to the rear of the voice coil. The diaphragm assembly is particularly suited to the frequency range of 500 c/s to 5 Kc/s at powers of up to 50 watts.
Patent ES-400173-A1 (ES)
Title: High voltage coil assembly for electric induction apparatus
IPC: H01F27/32
Filed: 1972-02-25
Abstract: In a high voltage winding assembly of the balanced multi-layer type, axially juxtaposed winding sections each having a line terminal connected to its outermost coil layer are connected in series circuit relation at their innermost coil layers and wound upon a common supporting cylinder of wrapped insulating material. Interwound in the supporting cylinder are a plurality of radially spaced shielding sleeves of electrically conductive material, and at opposite ends of the winding each sleeve is flared radially outward and over opposite ends of the winding to connect with one of a series of axially spaced apart shielding rings. The radially innermost shielding sleeve is connected to ground and the radially outermost shielding sleeve is connected to the winding midpoint between the serially connected, balanced winding sections.
Patent ES-410574-A1 (ES)
Title: Process for the preparation of polymer dispersions of a vinyl ester-ethylene-an acrylamide being free from emulsifiers
IPC: C08F2/00
Filed: 1973-01-12
Abstract: A process for the preparation of polymer dispersions being free from emulsifiers is provided in which a vinyl ester, ethylene and an acrylamide component are polymerized in aqueous dispersion in the presence of a radical-forming catalyst.
Patent ES-412742-A1 (ES)
Title: Vehicle control system, a method of and apparatus for providing an interlock control signal
IPC: B61L7/08
Filed: 1973-03-16
Abstract: A vehicle carrying a signal transmitter traverses a vehicle travel path. A plurality of stations are located at predetermined intervals along the travel path, and each such station includes interlock means. The vehicle transmits a plurality of coded command signals, including an interlock command signal. Decoding means decode the interlock command signal, and detector means provide an enable signal in response to the provision of any one of the coded command signals. An interlock control signal is provided for controlling the operation of the interlock means in response to the concurrent provision of a decoded interlock command signal and the enable signal.
Patent ES-413055-A1 (ES)
Title: 4-(4-biphenylyl)-4-hydroxybutyramide derivs - with antiphlogistic activity
IPC: C07C235/34
Filed: 1973-03-27
Abstract: Title cpds. are of formula (I): (where R1 is H, halogen, CN, NO2 or amino R2 is H or halogen, and R3 and R4 are H, 1-5C alkyl (opt. substd. by lower alkoxy or OH) or phenyl (opt. substd. by a halogen atom or CF3, OH or lower alkyl or alkoxy gp.), or NR3R4 is pyrrolidino, piperidino, morpholino or piperazino opt. substd. by lower alkyl) and physiologically tolerable salts with acids of those cpds. which are basic.
Patent ES-420664-A1 (ES)
Title: Process of manufacturing an electrical resistive element
IPC: H01C17/00
Filed: 1973-11-19
Abstract: A method of producing carbon resistors wherein a silicon oxide carrier member is subjected to the action of a reaction gas capable of etching the carrier member and pyrolytically depositing elemental carbon thereon. The reaction gas acts on the carrier member in an enclosed chamber and under controlled pressure-temperature conditions and may comprise a mixture of a thermally decomposable fluoro-carbon compound and an inert carrier gas. Additional hydrocarbons may also be added.
Patent ES-425525-A1 (ES)
Title: Belt grinding machine adapted to grind a flat or curved surface
IPC: B24B21/16
Filed: 1974-04-20
Abstract: The invention concerns a belt grinding machine or finisher, adapted to grind a flat or curved surface. The belt is driven and endless and passes over a conveyor on which workpieces each having a face to be ground, are located. The belt runs over a flexible beam which can be bent by one or more of a plurality of piston and cylinder units some of which are fixed to and some mounted displaceably on the frame of the machine, each cylinder having a feeler-actuator which during the passage of a workpiece past the belt, comes into contact with the surface to be ground, or a template, and follows the curvature thereof. Each feeler operates a valve to admit pressure fluid to or drain it from its cylinder so that the various cylinder actuations cause the beam and hence the belt to follow a path the curvature of which is that desired on the workpiece surface.
Patent ES-425575-A1 (ES)
Title: Sheet assemblies and sheets therefor
IPC: G09F7/00
Filed: 1976-04-16
Abstract: The invention disclosed relates to fabricated rigid sheets profiled for engagement with adjacent similar sheets for assembly as a panel having sufficient rigidity to enable sufficiently large areas to be produced for the construction of van bodies, domestic and other building, caravans and road signs. Each sheet is of substantially rectangular shape with rearwardly extending flanges at each of the opposed longitudinal edges arranged supportingly to engage a corresponding flange of an adjacent similar sheet in assembly. One of the flanges is formed with at least one and preferably a plurality of spaced openings and securing means is associated with the other of the flanges for engagement in the openings of an adjacent similar sheet. Preferably the flanges connect to their respective longitudinal edges by folds one of which is formed with spaced apertures and the other of which is dimensioned to be received in the one fold of an adjacent similar sheet and has projections associated therewith for engagement in the apertures of the adjacent similar sheet. The projections may be stuck out of the rear wall of the inner fold or may be formed on a securing strip dimensioned to be received in the inner fold in which case the projections extend through apertures in the rear wall of the inner fold.
Patent ES-428852-A1 (ES)
Title: Process for the preparation of polyvinyl chloride foams
IPC: C08G77/42
Filed: 1974-08-01
Abstract: Organopolysiloxane copolymers comprising units of the general formulae (CH3)2RSiO0.5 and R | Q(CnH2nO)YR'SiO and SiO2, wherein R represents an alkyl group with 1 to 3 carbon atoms or a vinyl group, R' represents a divalent hydrocarbon radical with 1 to 10 carbon atoms, Q represents an organic radical of the formulae -OG, -OCG, -OCOG PARALLEL PARALLEL O O or -OSiR3 in which G represents an alkyl radical with 1 to 4 carbon atoms, and each R group, which may be identical or different, is as defined above, n represents 2, 3 or 4, the CnH2n group being straight or branched and y represents a number from 4 to 60 the CnH2n groups being the same or different, the ratio of the number of (CH3)2RSiO0.5 units to the number of SiO2 units being 0.55:1 to 0.75:1 and the ratio of the number of R | Q(CnH2nO)YR'SiO units to the number of SiO2 units being 0.005:1 to 0.1:1 are used as stabilizers in the preparation of open-cell polyvinyl chloride foams. The raw foams can be easily shaped or moulded prior to gelling and gel without gain of density.
Patent ES-431780-A1 (ES)
Title: Machine for packaging box-shaped articles in bags
IPC: B65B43/36
Filed: 1974-11-08
Abstract: A machine for packaging loaves in bags having a reciprocating bag magazine in which the at any time topmost bag is ready for receiving a loaf. Each loaf is pushed into a bag with such speed that when hitting the bag bottom the loaf will take the bag along away from the magazine. After having left the magazine the bagged loaf slides onto a discharge conveyor. Limit switches control the moment of bagging the following loaf.
Patent ES-435858-A1 (ES)
Title: Functional fluid compositions containing epoxide stabilizers
IPC: C10N30/10
Filed: 1975-03-21
Abstract: Functional fluid compositions comprising a major amount of a base stock material which is an ester or amide of an acid phosphorus, a di- or tricarboxylic acid ester, an ester of a polyhydric compound or mixtures thereof, optionally minor amounts of other base stock materials or base stock modifiers such as viscosity index improvers, cavitation damage inhibitors, and lubricity agents, and an additive amount of an acid scavenger and corrosion inhibitor which is a monoepoxy substituted cyclohexane such as C1-4 alkyl-3,4-epoxycyclohexane. The compositions are particularly useful as aircraft hydraulic fluids.
Patent ES-444659-A1 (ES)
Title: Method and apparatus for discriminating against extraneous particles in optical testing
IPC: G01N21/82
Filed: 1976-01-27
Abstract: A chamber (15) for accommodating a test tube (24) holding the solution to be tested is located in a light-tight housing (12). A laser (13) is arranged such that the laser beam (14) can penetrate into the solution through an opening (28, 29). Situated as a light trap opposite the said opening is a recess (31) which is lined with light-absorbing material. Located at the external end of a light-passing channel (32) extending at approximately 45 DEG relative to the direction of the laser beam is a photodetector (36) for receiving the scattered light emanating from the solution. A NOT element is used to negate the output signal of the photodetector and to add to the negated signal by means of a circuit a constant signal of the same polarity as the interference signals but having a value exceeding the amplitude of the interference signals. Furthermore, a comparator and an electronic switch are provided for eliminating the negated interference signals. A filter element for smoothing the output signal is connected at the output of the electronic switch. The smooth output signal is fed to a digital display via an amplifier.
Patent ES-446964-A1 (ES)
Title: Process for recovering electrolytic copper of high purity by means of reduction electrolysis
IPC: C25C1/12
Filed: 1976-04-13
Abstract: Copper sulfate solution obtained by the sulfuric acid leaching of cupriferous material and containing impurities such as Fe, As, Sb, Bi, Se, Te, Sn, Pb, Cl, Ag, Hg, and PO4, are subjected to a two step purification process. In the first step, the pH is adjusted to 2.7-3.3 with, e.g. Ca(OH)2, and the potential in relation to the standard hydrogen electrode is adjusted to at least 575 mv with an oxidizing agent, e.g. air. The temperature is 50 DEG -90 DEG C. Impurities precipitate and are separated. Se, Cl, and possibly Ag and Hg remain in solution and are removed in the second step, wherein the potential is reduced to below 350 mv by addition of a cupriferous reducing agent, e.g. Cu or Cu2O. The pH is below 3 and the temperature is below 50 DEG C. Impurities precipitate as copper (I) compounds, and are separated to provide the solution in condition for the electrolysis. The copper produced is of high purity, having a conductivity of at least 58.8 mho x m/mm2 and a maximum semi-hard temperature of 200 DEG C.
Patent ES-452220-A1 (ES)
Title: Mowing device
IPC: A01D63/04
Filed: 1976-10-08
Abstract: A mowing device having rotating cutting members above a transverse housing comprises a screen arranged near one end of said housing and having a front portion disposed in front of the outermost cutting member, viewed in the direction of travel, and being located just inside the outermost path of said cutting member but at a higher level than said cutting member. In order to provide a distinct separation between mown crop and the crop still to be cut the lower rim of the screen near the outermost cutting member is disposed further outwardly than the front portion and outside the outermost cutting member, the lower rim of the screen being located at a higher level than the supporting surface, that is to say, approximately at the cutting level of the outermost cutting member.
Patent ES-454125-A1 (ES)
Title: Conductor, claw, and method and apparatus for its production
IPC: B21D53/36
Filed: 1976-12-10
Abstract: The conductor claw includes a bent bottom section and claw arms outwardly adjoining the bent bottom section at the two sides thereof. The claw arms are bent towards the longitudinal axis of the conductor claw. The end sections of the claw arms are curved. Each claw arm includes intermediate the curved bottom section of the conductor claw and the curved end section of the respective claw arm a straight section which merges tangentially into the respective curved end section. Each claw arm has at the bend therein an inner knee and an outer knee, and each curved end section of the claw arms has an inner curve and an outer curve. The centers of the inner and outer curves of each curved end section are located on a first line spaced from each other a distance corresponding to the thickness of the material of the conductor claw. The first line extends parallel to a second line which passes through both the inner and the outer knee of the respective claw arm.
Patent ES-456967-A1 (ES)
Title: Process and apparatus for producing a thermoplastic film
IPC: B29C49/00
Filed: 1977-03-17
Abstract: A film based on thermally unstable, thermoplastic materials, the film being formed on a calender at a temperature below the thermoplastic range and subsequently subjected to a heat treatment involving heating the film up to the thermoplastic range of the plastic used, is obtained by the film being oriented under tensile stress during the heat treatment, the tensile stress being set such that an elongation of the film of at least 25 per cent to 50 per cent is achieved. An apparatus for producing an oriented film based on thermally unstable, thermoplastic materials is also described. This apparatus is characterised in that a calender (k) for producing the film (K) is provided and is followed directly downstream by at least one melt cylinder (17 to 112), in that furthermore take-off rolls (113 to 115) are provided, which draw the film off the melt cylinder or cylinders at an increased rate, it being possible in each case for a further downstream melt cylinder to serve as the take-off roll.
Patent ES-459333-A1 (ES)
Title: Apparatus for controlling the position of a mining machine
IPC: E21C35/16
Filed: 1977-05-31
Abstract: Apparatus for controlling the position of a mineral mining machine, such as a plough, movable along a main guide at one side of a scraper-chain conveyor employs cantilevered beams extending between the conveyor and a series of roof supports. Each beam is preferably resiliently flexible and is connected, for example via a bracket at an opposite side of the conveyor, to the main guide. A device, such as a hydraulic piston and cylinder unit, is used to adjust the inclination between the beam and the guide in generally known manner. The end portion of the beam remote from the conveyor extends alongside a side mounting surface of the floor structure of an associated one of the supports which mounting surface faces the next adjacent support. A further guide means, which may take the form of a tube containing a ball or a similar guide member or a guideway along which a guide member is displaceable, is detachably secured to the mounting surface of the support. The guide member of the further guide means is connected to the end of the beam so as to support the latter while allowing some free pivotal displacement in all directions as well as displacement axially and parallel to the support.
Patent ES-459750-A1 (ES)
Title: Process for producing methyl 3-(2-quinoxalinylmethylene) carbazate-n1,n4-dioxides
IPC: C07C301/00
Filed: 1977-06-14
Abstract: The carbazates of formula I are obtained by reacting the quinoxaline N<1>,N<4>-dioxides carrying in position 2 a chloromethyl or bromomethyl group with one to two equivalents of an alkali metal carbonate and one to two equivalents of a hydrazine of formula R''NH-NH-COOCH3 at a temperature of between 75 and 85 DEG C and in an inert solvent. This hydrazine is prepared by reaction of methyl carbazate with a corresponding acid anhydride or sulphonyl halide which introduces the radical R''. The meaning of the symbols is explained in Claim 1. The compounds of formula I are strong antibacterial agents.
Patent ES-466032-A1 (ES)
Title: Process for the production of basic substituted alkyl theophylline
IPC: C07D473/08
Filed: 1978-01-16
Abstract: Basic substituted alkyl theophylline derivatives of the formula < IMAGE > (I) in which Alk is a straight or branched chain alkylene group with 2 to 4 carbon atoms and R is hydrogen or a methyl group are produced by catalytic hydrogenation of compounds of the formula < IMAGE > (II) where the phenolic hydroxyl groups and/or the secondary basic nitrogen atom can contain protective groups using as the solvent a compound of the formula < IMAGE > (III) where R', R'' and R''' are the same or different and are alkyl groups of 1 to 2 carbon atoms and R' together with R''' can also be an alkylene bridge with 3 to 4 carbon atoms and in a given case the protective groups present are split off.
Patent ES-470669-A1 (ES)
Title: Ring type calibrating cage.
IPC: B21D51/26
Filed: 1978-06-09
Abstract: {PG,1 A ring type calibrating cage for confining a metal container shell just prior to and during seam welding. The cage comprises a series of strategically located rings through which the can body is fed. These rings are of narrow width reducing friction drag and being optimally positioned to accurately hold the can body in cylindrical shape with overlapped edge portions particularly when these edge portions enter into the welding nip.
Patent ES-470840-A1 (ES)
Title: Noise and cross-talk elimination in recording and reproducing video signals
IPC: H04N9/79
Filed: 1978-06-15
Abstract: In apparatus for recording and reproducing video signals in successive parallel tracks of reduced width and without guard bands therebetween so as to achieve a high recording density on the magnetic tape or other record medium, and in which a high frequency portion of the video signals, for example, the luminance component of color video signals, is frequency modulated for the recording thereof, processing circuits are operative in the recording and reproducing modes of operation to act on the luminance component prior to its frequency modulation in recording and after its demodulation in reproducing, respectively, for substantially eliminating from the demodulated luminance component the usual FM noise signal and also any interfering signal due to cross-talk, for example, as results from a lack of H-alignment between the signals recorded in adjacent tracks when the apparatus is intended to be operated with two different tape speeds. Such processing circuits provide non-linear pre-emphasis and substantially complementary non-linear de-emphasis in recording and reproducing, respectively, with the amounts of pre-emphasis and de-emphasis being dependent on the level and frequency of the signal being recorded and reproduced and preferably also dependent on the level-frequency characteristic of the interfering signal due to cross-talk appearing on reproduction.
Patent ES-474813-A1 (ES)
Title: Apparatus and method for maintaining calibration of a thermocouple used in a bushing for the drawing of glass fiber
IPC: C03B37/07
Filed: 1978-11-04
Abstract: A thermocouple connection for a platinum/rhodium glass fiber drawing bushing wherein the dissimilar leads of the thermocouple are extended directly from the bushing and over a length so closely adjacent the bushing that the temperature of the leads over said length is substantially equal to the temperature of the bushing. As a result of thus positioning the leads, migration of the interface between the dissimilar material of the leads does not materially affect the calibration of the thermocouple.
Patent ES-476057-A1 (ES)
Title: Forming, filling and weighing sacks
IPC: B65B1/32
Filed: 1978-12-15
Abstract: Sacks 9 are formed, filled and weighed in one location. Sheet material is fed to the location where it is formed into a sack which is filled through a hopper 7. Once the sack is full, it is weighed by attaching a weighing device to rollers 5 over which the sheet material passes and from which the filled sack is suspended. By weighing an empty sack 9 suspended from the rollers 5, a value can be obtained which can be subtracted from the measured weight of each sack to obtain the exact weight of the contents, which may be particulate hygroscopic, dielectric or sticky material. The sheet material may be in the form of a tube, a single sheet, or two sheets from rollers 1,2.
Patent ES-476793-A1 (ES)
Title: Tumbler washing and drying machine
IPC: D06F58/02
Filed: 1979-01-12
Abstract: An improved cloth-handling machine in which the energy input necessary for evaporating and conducting away water from clothes being dried is minimized. The machine is a tumbler drying or a combination washing/drying machine and includes a casing having a radiant heater disposed adjacent a reflector in its upper portion adapted to heat a tumbler drum rotatably mounted within the casing. Air is withdrawn from the drum and moisture is condensed from the air which is then recirculated back to the interior of the drum. A condenser arrangement, positioned outside the casing, is comprised of an air turbulator portion connected to a drain opening at the bottom of the casing. A spray or mist of cooling water is supplied by way of a nozzle 22 mounted between the turbulator and the drain opening. The turbulator is followed by a filter and a tranquillizing duct leading through a sump to a pump having a syphon-type outlet. From the tranquillizing duct recirculated air is drawn by an impeller and is moved through an air passage between the radiant heater and reflector, so as to be heated and is thence supplied to the interior of the drum by a nozzle projecting through the usual charging opening of the drum.