baber/WOPTO huggingface dataset:
Patent ES-361385-A1 (ES)
Title: Process for the preparation of salts of hydroxylamine
IPC: B01J23/00
Filed: 1968-12-13
Abstract: Salts of hydroxylamine are obtained by reducing nitrate ions with hydrogen in an acid medium using a catalyst containing a metal selected from Ru, Rh, Pd, Os, Ir and Pt, and in the additional presence of an activator, being at least one metal or a compound thereof, from groups 1 B , 2 B , S A , 4 A , or 5 A of the Periodic Table (Mendeleev), the atomic ratios of activator to platinum group metal being less than 1. The activator may be applied'to the'particles of the catalyst (e.g. GeO 2 on Pd) or present in the reaction medium (e.g. Na 2 HAsO 4 , SbCl 3 , SbF 3 , GeO 2 , SnCl 2 , PbO, Ga 2 (SO 4 ) 3 , In 2 (SO 4 ) 3 , T1 (NO 3 ) 3 , Cd(NO 3 ) 2 , AgNO 3 , CuO, AuCl 3 and Hg(NO 3 ) 2 . The reaction medium is preferably buffered with phosphoric and/or sulphuric acid/salt mixtures.
Patent ES-366597-A1 (ES)
Title: Textile process and apparatus
IPC: B29C61/00
Filed: 1969-04-29
Abstract: A method of slitting a film 15 in a plurality of lengthwise disposed slits of finite length comprises the step of guiding the film in a path across part of the circumference of a rotating cylindrical array of cutting edges 11, the speeds of the film and of the cutting edges being different so that the length of each slit is determined by the difference in the speeds and the time for which the cutting edges engage the film. The cutting edges are formed on discs 12 spaced apart by discs 14 and keyed on a shaft 13. The film is fed over the cutting edges by means of feed rollers 16, 17. In a modification, Fig. 3 (not shown), instead of feeding the film in an arcuate path, it is fed along a chord of the cylinder bounding the cutting edges.
Patent ES-376301-A1 (ES)
Title: Method and apparatus for providing constant inflation air
IPC: B65B41/12
Filed: 1970-02-06
Abstract: A method for continuously supplying a constant stream of inflating gas to a continuous length of flexible tubing as it is advanced over a mandrel comprises providing a floating mandrel having a bore therethrough and two longitudinally spaced apart inlet ports communicating with the bore, continuously advancing the tubing over the mandrel, alternately gripping and releasing the mandrel at the said two ports, and feeding a stream of inflating gas through each port into the mandrel bore and thence into the tubing during the time that the mandrel is gripped at the port, the alternate gripping and releasing being so arranged that the mandrel is always gripped at at least one port, and inflating gas is always fed to the mandrel at at least one port, escape of gas through the other port being prevented or restricted during at least a part of the time that the gas is being so fed. The inflated tubing may be stirred and compacted in successive portions upstream of the ports and severed, the severed portions being advanced along the mandrel and axially compressed against the gripping clamp in the gripping position, and is then advanced past the port when the clamp has moved out of its gripping position. An apparatus comprises a floating mandrel having a longitudinal bore therethrough leading to an outlet for gas passing into the tubing and a first and second inlet port longitudinally spaced apart and communicating with the bore, tubing feed members disposed about the mandrel for continuously advancing a continuous length of flexible porous tubing along the mandrel, valve means slidably positioned within the bore of the mandrel and arranged to reciprocate within the bore alternately to open and close said first and second ports such that when one port is open the other is closed, and a first and second clamp, each of the clamps having movable jaws for gripping and releasing the mandrel and a passage therein connectible to a source of inflating gas, the jaws of the first and second clamps covering the first and second ports respectively and the passage in each clamp communicating with the appropriate port when in the gripping position.
Patent ES-379872-A1 (ES)
Title: Metal complex dyes of trisazo compounds having a 3,5-dinitro-2-hydroxyphenylazo group and two other arylazo groups bound to a 1-amino-3-hydroxy-1,3-diamino- or 1,3-dihydroxy-benzene nucleus
IPC: C09B45/24
Filed: 1970-05-21
Abstract: Compounds of the formula < IMAGE > homogeneous and heterogeneous metal complexes thereof, and mixtures of said compounds and complexes, wherein each A is independently hydroxy or amino, T is carboxy or sulpho, T1 is hydrogen, nitro, halo, alkyl, substituted alkyl, alkoxy, substituted alkoxy or sulpho, T2 is hydrogen, nitro, halo, alkyl, substituted alkyl, alkoxy or substituted alkoxy, X is hydrogen, hydroxy, halo, nitro, alkyl, substituted alkyl, alkoxy, substituted alkoxy or sulpho, and Y is hydrogen, hydroxy, halo, nitro, alkyl, substituted alkyl, alkoxy, substituted alkoxy or < IMAGE > wherein with the proviso that Y is- < IMAGE > when X is other than sulpho, Z is hydrogen, carboxy or a sulpho, Z1 is hydrogen, hydroxy, nitro, alkyl, substituted alkyl, alkoxy, or substituted alkoxy, and Z2 is hydrogen or nitro. These dyes are useful for dyeing leather. The dyes display excellent levelling properties, build up well, are soluble in water and are resistant to migration in polyvinyl chloride and crude rubber. The dyeings exhibit good fastness to buffing, light, wet treatments and pressing.
Patent ES-388255-A1 (ES)
Title: Time switching apparatus with controllable step-by-step time durations
IPC: H01H43/10
Filed: 1971-02-13
Abstract: A tensioned cam surface operates a conveying device and is mounted concentrically with respect to a cammed program disk which carries timing gear teeth scanned by a time lever with which the conveying device can be locked or unlocked. Time metering apparatus is operated by at least one of the timing gear teeth on the continuously revolving cammed program disk and at the end operating position of the conveying device is reversed in direction. The time metering apparatus comprises a counter wheel rotatably mounted on a counter wheel lever and supported in a counting position by a front surface of the cammed program disk. The release of a cocking lever is simultaneous with a time when one of a number of special timing gear teeth engages with the counter wheel. The cocking lever is actuated by a time metering lever in the time metering apparatus and a locking latch locks the cocking lever in response to a timing cam mounted on the cammed program disk. The tension cam surface is shaped so that the unlocking of the cocking lever by the time metering lever is delayed and that delayed release is variable for any desired length of time either by a magnetically operated locking device or by a variation of the RPM of the main drive of the cammed program disk.
Patent ES-410692-A1 (ES)
Title: Platform assembly for a multiple chain pair transport device
IPC: B65G17/06
Filed: 1973-01-11
Abstract: As described herein, a platform for a multiple chain pair transport device includes a plurality of spaced rigid linear members coupled at their ends to selected chain pairs and a plurality of selectively flexible interconnecting members. The interconnecting members are arranged in a grid pattern between the chain pairs and include spaced pairs of complementary shaped locking members. The locking members comprise overlapping portions that are relatively rotatable through a predetermined arc and are supported by and spaced between the rigid linear members. The overlapping portions include matching arcuate keyways and protrusions which permit the locking members to flex upwardly and to be rigidly locked in a horizontal position in response to loads bearing downwardly against the support members.
Patent ES-412942-A1 (ES)
Title: Tandem master cylinder
IPC: B60T11/20
Filed: 1973-03-23
Abstract: A tandem master cylinder comprising a housing with a bore therein in which are slidably mounted in telescopic relationship a control piston and a floating piston of fingerstall shape. Tilting valves are also provided for permitting pressure chamber of the master cylinder to be refilled. Each tilting valve has a stem projecting into the path of one piston to be independently and directly operated thereby.
Patent ES-420075-A1 (ES)
Title: Controlled flux addition for minimizing surface defects on continuously cast steel
IPC: C21C7/076
Filed: 1973-10-30
Abstract: In the continuous casting of steel, a low melting point flux is applied to the top surface of the molten steel in the mold, to provide adequate assimilation of scum and thus minimize breakouts. In using such low melting point fluxes, it has been found that pinhole defects can be substantially eliminated by feeding an amount significantly lower than is conventionally employed. The maximum amount which may be employed is dependent on the dimensions of the caster and is given by the equation: F max. = 0.017 (C.S.A.
Patent ES-427028-A1 (ES)
Title: Device for the production of ceramic mouldings, and more especially of magnetized ferrite mouldings
IPC: C04B35/26
Filed: 1974-06-06
Abstract: The specification describes an apparatus and a method for the production of ceramic mouldings, in the case of which a suspension of moulding composition particles is introduced into a filling space formed between two punches which can be relatively moved towards each other. The liquid is removed via a filter formed in a punch provided with filter openings. The supply of the suspension is terminated after filling of the filling space with the supply duct shut off. The volume of the system comprising the filling space, the supply duct shut off from the outside and a space with a deformable limiting wall is decreased with a corresponding increase in pressure in this system and then in a conventional manner the final pressure is produced by relative movement of the punches. In the preferred form the filling space is isolated from the remainder of the filling system during the final compaction and forming of the moulding. The invention is preferably applied to the production of magnetized ferrite mouldings.
Patent ES-427084-A1 (ES)
Title: Printing plates
IPC: G03F7/038
Filed: 1974-06-07
Abstract: The light-curable polymer system contains a preponderance of urethane prepolymer, extended by means of a polyol compound, and has unsaturated acrylic or methacrylic end groups, a portion of the said groups having a tetraurethane linkage. The light-curable polymer system is a nonadhesive solid at room temperature, and a low-viscosity liquid at a high temperature less than that at which the heat-polymerisation is generated. For preparing photo-etched printing plates, this light-curable polymer system is melted at a temperature between the melting point and the temperature at which the heat-polymerisation is generated, then cast on a substrate and solidified by cooling below the melting point.
Patent ES-430410-A1 (ES)
Title: Continuous method of making polyurethane powder
IPC: C08G18/00
Filed: 1974-09-19
Abstract: Continuous method for preparing polyurethane resin directly in finely divided form in which method a plurality of reagents which combine to form polyurethane resin, and of which at least one is a liquid, and an inert organic liquid reaction medium in which at least one of the reagents and the polyurethane resin are insoluble and continuously mixed and vigorously agitated to form a fine dispersion of the insoluble reagent or reagents in the inert liquid, portions of the resulting dispersion are continuously discharged after a residence mixing and agitation time for reaction to thicken the dispersed material by conversion to polyurethane prior to discharge, reaction of the dispersed material discharged is continued under conditions which retard settling of the dispersed material substantially to complete the reaction between the reagents to form fine particles of polyurethane resin and the polyurethane resin particles are separated from the inert liquid.
Patent ES-438081-A1 (ES)
Title: 1-Substituted-1,2,4-triazoles
IPC: C07C45/70
Filed: 1975-05-30
Abstract: 1-SUBSTITUTED-1,2,4-TRIAZOLES OF THE FORMULA R1-O-C-Y-R3 (I) | R2 in which X1 represents hydrogen or an alkyl radical, X2 represents hydrogen or an alkyl radical, R1 represents an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or optionally substituted aryl or aralkyl radical, R2 represents hydrogen or an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or optionally substituted aryl or aralkyl radical, R3 represents hydrogen or an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or optionally substituted aryl or aralkyl radical, and Y represents a keto group or a functional keto derivative, WHICH POSSESS FUNGICIDAL PROPERTIES.
Patent ES-440079-A1 (ES)
Title: 3-Quinoline-substituted 4-oxy-carboxamides
IPC: C07D263/48
Filed: 1975-08-07
Abstract: Novel 3-quinoline-carboxamides of the formula WHEREIN R is selected from the group consisting of halogen, -CF3, -OCF3 and -SCF3 in the 7- or 8-position, R1 is selected from the group consisting of hydrogen and acyl of an aliphatic carboxylic acid of 2 to 4 carbon atoms, R3 is selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms and R2 is selected from the group consisting of thiazloyl, pyridinyl and oxazolyl and their non-toxic, pharmaceutically acceptable acid addition salts having analgesic activity and their preparation and novel intermediates.
Patent ES-441346-A1 (ES)
Title: Process for beet sugar production
IPC: C13B20/02
Filed: 1975-09-27
Abstract: Beet juice is purified, then concentrated and treated in several steps for boiling and centrifugal separation to effect recovery of sucrose therefrom. The molasses remaining after the separation of sucrose from massecuite is treated with alpha -galactosidase to effect hydrolysis of raffinose present in the molasses. The resultant raffinose hydrolyzate is introduced into a calcium saccharate-forming step, wherein quicklime is continuously added to the hydrolyzate to form saccharate within the hydrolyzate. From the calcium saccharate-forming step, nearly the same volume of the saccharate-containing solution as that of the raffinose hydrolyzate fed therein is forwarded to a filtering and washing step. The resultant saccharate cake is sent back to the step for purification. From said calcium saccharate-forming step, the same saccharate-containing solution is also withdrawn in a volume of from three to ten times that of said raffinose hydrolyzate fed therein, is cooled and thereafter returned to the calcium saccharate-forming step. The saccharate-containing solution is circulated several times through this step so that discharge of waste molasses is eliminated and the sucrose contained in the beet juice is efficiently recovered substantially in its entire amount.
Patent ES-450849-A1 (ES)
Title: 2-(Alkylhalophenylimino)dithiolanes and ectoparasiticidal composition and method
IPC: C07D339/06
Filed: 1976-08-20
Abstract: 2-(Alkylhalophenylimino)-1,3-dithiolanes are ectoparasiticidal agents. The compounds, of which 2-(2-methyl-4-chlorophenylimino)-1,3-dithiolane is a typical example, are obtained by condensation of a salt of the corresponding N-phenyldithiocarbamic acid and a vic-dihaloalkane.
Patent ES-452193-A1 (ES)
Title: Leakage reactance transformer
IPC: H01F29/08
Filed: 1976-10-07
Abstract: This specification discloses a leakage reactance transformer for supplying electric arc welding current and comprising a core formed from a stack of laminations having a central 'key-hole' shaped opening punched therein and defining an arcuate core portion and two spaced legs. The core has primary and secondary windings mounted thereon and a keeper secured to the legs to close the flux path of the core. One of the windings is mounted on a frame which is pivoted relative to the core so that the winding is movable along the arcuate core section towards and away from the other winding. A magnetic shunt member is also mounted on the frame approximately 180 DEG from the movable winding and in one position bridges the gap between the legs of the core and in another position is remote from this gap. In the bridging position the shunt contributes to the leakage reactance of the transformer and in the remote position contributes substantially no leakage reactance. The shunt is formed from a sector of the portion of the laminations cut from the core to define the arcuate section of the opening and the keeper is formed from the remainder of the portion cut from the core and defining the space between the legs of the core. The core and windings are mounted within a casing and means are provided to facilitate the pivotal movement of the movable winding and shunt to any position between the two extremes whereby the welding current may be infinitely varied between the values at the extremes.
Patent ES-452733-A1 (ES)
Title: Method of exhausting combustion gas from combustion gas exhaust pipe for stack and so on in sanitary manner and apparatus for executing same
IPC: F23L17/02
Filed: 1976-10-26
Abstract: Air is supplied either by blowing or drawing it in, through the gap (a) between the top of the chimney and an open mixing zone (7) above it, giving extensive mixing with the smoke. The mixture is positively discharged at high speed in a powerful jet thrusting against the atmospheric air, giving dispersal over a wide area. Gas and atmospheric air can be delivered to the smoke in the interval above the chimney outlet (3) by the action of a fan (8) in a mixing cylinder (7) producing after-burning.
Patent ES-453551-A1 (ES)
Title: Equipment for automatically monitoring the verticality of bottles
IPC: B07C5/12
Filed: 1976-11-23
Abstract: An apparatus for detecting nonverticality of small-mouthed bottles comprises means for training a light beam across a conveyor path and, in the region of this light beam further means for directing a light beam downwardly on to the path and into the mouth of the bottle. A detector responds to reflective light from the lip or rim of the mouth so that the offset of the center of the mouth and the base of the bottle can be detected.
Patent ES-457682-A1 (ES)
Title: Camera tube having photocathode absorptive of shorter wavelength and filter absorptive of longer wavelength light
IPC: H01J29/39
Filed: 1977-04-09
Abstract: The optical cross-talk in a camera tube is reduced by the provision of a filter element which overlaps the entire target. The filter may be arranged in front of the photosensitive target and have a spectral transmission which is adapted to the spectral sensitivity of the target. The filter may also be arranged behind the target and preferably constructed so that it is also low-reflective for incoming light. In order to prevent excessive transverse conduction, such a filter may have a mosaic structure consisting of mutually insulated areas. Optical cross-talk may also be reduced by mounting the target on a support which is separately arranged in the camera tube and which has a small thickness.
Patent ES-459994-A1 (ES)
Title: Process for the preparation of gamma-pyrones
IPC: A23L27/10
Filed: 1977-06-22
Abstract: The gamma-pyrones of formula I in which the symbols have the meaning given in Claim 1 are obtained by a simple and economic "one-pot" process by reaction of a furfuryl alcohol of formula III with at least 2 equivalents of a halogenated oxidising agent, in aqueous solution at a temperature of between -50 DEG and +50 DEG C, and then the reaction mixture is heated until hydrolysis of the intermediate formed is virtually complete. The gamma-pyrones obtained can be used as products which enhance flavour and fragrance in food and cosmetic preparations.
Patent ES-462716-A1 (ES)
Title: Working up spent sulphuric acid simultaneously with sulphate salts
IPC: C01B17/58
Filed: 1977-09-28
Abstract: Spent sulphuric acid, either alongside or mixed with contaminated metal salts such as iron sulphate heptahydrate, is regenerated to fresh acid by countercurrent contact with gases from cleavage of the sulphate salts, such gases containing SO3 which effects build up of the acid concentration. The built up acid is evaporated in another stage to obtain pure acid. The metal sulphate solids are subjected to high temperature cleavage, generating SO3 which effects the previous concentration. Cleavage also produces some SO2 which is converted to SO3 by wet catalysis.
Patent ES-463593-A1 (ES)
Title: Precision surface optical fibers
IPC: H04B10/2581
Filed: 1977-10-27
Abstract: Methods and apparatus are disclosed for forming a precision three-dimensional surface to clad optical fibers. One embodiment provides means for deforming the fiber end to conform to the geometry of the interstice formed between three tangential and parallel cylinders. The precision three-dimensional fiber end enables accurate low loss coupling between the fibers to be achieved through the accurate reference planes presented.
Patent ES-463763-A1 (ES)
Title: Granular disc joints for lengthwise graphitization
IPC: C01B31/00
Filed: 1977-11-02
Abstract: A pad of conductive material composed of particulate carbon and an organic binder is provided which acts as a spacer between coaxially placed carbon electrode columns when they are subjected to resistance heating by passing electric current lengthwise through the columns from electrodes held against the ends thereof.
Patent ES-467241-A1 (ES)
Title: Friction clutch plate assembly with torsion damping hub
IPC: F16D13/64
Filed: 1978-02-23
Abstract: In a clutch friction plate of the kind comprising a hub and a pair of washers coaxial with the hub and adapted to move angularly with respect thereto against the action of spring means operable to damp the friction plate during rotation, the washers are joined together by spacer means which comprise axially-directed extensions of at least one of the washers, which extensions form a circularly continuous flange on at least one washer, and a friction disc is fastened to one of the washers in a connection region which is bounded by a circumference having a diameter which is not greater than that of the circumference around which the axial extensions are located.
Patent ES-469604-A1 (ES)
Title: Extractor assembly for rimless cartridges
IPC: F41C3/14
Filed: 1978-05-09
Abstract: Disclosed is an extractor assembly including an extractor rod splined within a revolver cylinder and carrying spring leaf extractor segments in elongated grooves about its outer surface. The segments are prebent and biased in the assembly to displace extractor tips carried thereby radially outwardly. When the extractor assembly is fully seated within the revolver cylinder, cam surfaces on the cylinder maintain the extractor tips spaced radially inwardly of the cylinder chambers. Upon axial displacement of the extractor assembly, the extractor tips, under the natural bias of the segments, move radially outwardly into the grooves of the cartridge casings whereby the tips displace the casings rearwardly from the cylinder chambers. Upon spring return of the extractor assembly into the cylinder, the extractor tips are cammed radially inwardly and out of the chambers enabling the cylinder to be loaded.
Patent ES-469744-A1 (ES)
Title: Defrost control for heat pumps
IPC: F25B47/02
Filed: 1978-05-11
Abstract: A control system for monitoring frost accumulation on the coil of a heat pump. An operational parameter of the heat pump compressor responsive to frost accumulation, such as compressor current, is compared to a reference level developed during a non-frost condition of the coil to initiate and terminate coil defrosting in response to a predetermined variation between the operational and reference parameter levels.
Patent ES-472299-A1 (ES)
Title: Method for the production of slabs of marble or similar stony material
IPC: B28D1/00
Filed: 1978-08-02
Abstract: Thin sections of marble or like stone are made by sawing of a block to produce preliminary slabs which are held together, either by integral bridging portions, bonded base portions, or external shoring, while a spacer material, for example resin, is introduced into the clefts between the slabs. A second sawing operation then divides each slab into two halves, which can be ground and polished before separation.