baber/WOPTO huggingface dataset:
Patent ES-369584-A1 (ES)
Title: Signal translating circuit comprising a plurality of igfet amplifiers cascaded in direct coupled fashion
IPC: H03F3/347
Filed: 1969-07-16
Abstract: In an amplifier having a plurality of stages 110 1 , 110 2 ... 110 n connected in cascade, each stage consists of a common source insulated gate F.E.T. 121, 114 which has drain load impedances 120, 116, a self-biasing means including a feedback element 140 is coupled from the output to the gate of the transistor 121 in the first stage and the load impedance of a stage 110, and the immediately succeeding stage 110 2 consist of a respective insulated gate F.E.T. 120, 116 2 each adapted to receive an input signal e 1 , e 2 such that the stage 110 2 acts in common source mode for signals applied to stage 110 1 and in source follower mode for signals applied to stage 110 2 and the stage 110 2 has a unity voltage gain with respect to signals received at the gate electrode of its associated transistor 114 2 . The amplifier is otherwise substantially the same as that disclosed in Specification 1,157, 759 (Fig. 1, not shown). The output 115 2 is the aljebraic addition and accomplishes signal subtraction or difference of e 2 -e 1 . The gains in a given direction about the closed loop of stages increases as a function of their removal from the unity gain stage to a maximum at the stage or stages most remote from the unity gain stage within the closed loop. The stage gains may be symmetrical with respect to the unity gain stage in either direction around the loop.
Patent ES-370789-A1 (ES)
Title: Ohmic contact and method and composition for forming same
IPC: H01B1/00
Filed: 1969-08-23
Abstract: An ohmic contact 12 on a semi-conductor element 10 consists of a hypoeutectic alloy of Ni and In i.e. an alloy containing less In than is contained in the eutectic Ni/In alloy. The preferred In content of the contact 12 is 5-20% by weight. The device shown comprises a junction capacitor including a ceramic body 10 of barium titanate formed by pelletizing powdered material, firing in an oxidizing atmosphere at 2400 F. and heating at 1700-2300 F. in a reducing atmosphere to render it semi-conductive. Other semi-conductor materials mentioned are MnO, Fe 2 O 3 , Ga 2 O, NiO, Cu 2 O, TiO 2 , ZnFe 2 O 4 , SrTiO 3 , calcium or lead titanates and barium, magnesium or lead zirconates. The material may be intrinsic, N-type or P-type, and suitable dopants are La, Bi, B, In or Sb. The Ni and In for the ohmic contact 12 may be applied simultaneously or sequentially, the latter process being followed by firing to cause inter-diffusion. Vacuum deposition may be employed, or a Ni/In alloy may be ground, deposited as a powder and fired. The preferred process entails applying to the body 10 a mixture of finely divided reducible compounds of Ni and In e.g. oxides, carbonates or resinates in powder form or preferably dispersed in a matrix consisting of a film-forming vehicle, such as ethyl cellulose resin, and a slow-drying aromatic solvent, such as high b.pt. xylene. The mixture is painted or sprayed on and dried at 250-300 F. It is then fired at 1660-2000 F. in a reducing atmosphere to reduce the Ni and In compounds to elemental form. This process may be combined with the reduction of the ceramic body 10. The junction of the device is formed by applying a layer 16 of finely divided Ag in an inorganic binder of borosilicate frit and Bi 2 O 3 . On firing at 1700 F. it is considered that Bi diffuses into the body 10 to form a barrier layer 18. A further layer 14 of Bifree Ag may be formed on the ohmic contact 12 by applying an Ag or Ag 2 O dispersion in an organic resinous vehicle and firing.
Patent ES-379110-A1 (ES)
Title: Adjustable link for prosthetic limb
IPC: A61F2/50
Filed: 1970-04-28
Abstract: A link between members of a prosthetic limb, such as a connector between a knee joint and an artificial shank, has a frustopyramidal four-sided boss divergingly projecting from a spherically convex base which slidably engages a correspondingly concave annular socket surrounding the boss. Two pairs of setscrews, lodged 90 DEG apart in the annular socket, bear upon the sides of the frustopyramidal boss to enable its adjustment, within a limited swing angle, in two mutually orthogonal planes.
Patent ES-381764-A1 (ES)
Title: 17{62 -hydroxy-17{60 -(2{40 -methallyl)9{62 , 10{60 -androsta-1,4,6-trien-3-one, methods of producing this compound and pharmaceutical compositions comprising said compound as an active ingredient
IPC: C07J15/00
Filed: 1970-07-14
Abstract: A progestationally active 17 alpha -(2'-methallyl)-9 beta , 10 alpha androsta-1,4,6-triene-3-one. 17 beta -hydroxy-17 alpha -(2'-methallyl)9 beta , 10 alpha -androsta-1,4,6-trien-3-one, methods of producing this compound and pharmaceutical compositions comprising said compound as an active ingredient.
Patent ES-387873-A1 (ES)
Title: Screw piston feed device
IPC: B29C45/52
Filed: 1971-02-02
Abstract: The invention relates to non-return valves for screw pistons devices for extrusion moulding of plastic material, in which the material is in a first mode conveyed by the rotary movement and extrusion of the material takes place in a second mode by the axial movement of the screw a non-return valve is provided which allows the material to pass during the first mode to the front end of the screw and in the second mode closes to prevent the compositions from being driven back down the screw, the valve being formed as a ring around the screw which rings is allowed limited axial movement but substantially no rotational movement, the valve ring when open, allowing a passage for the material between it and the screw shaft and when closing the ring moves relatively back on the screw shaft to seat on the shaft and close the passage.
Patent ES-407960-A1 (ES)
Title: Accumulating chamber for compacting hay wagon
IPC: A01D85/00
Filed: 1972-10-25
Abstract: A compacting hay wagon comprising an accumulator chamber into which hay being gathered is delivered, a compacting chamber communicating with the accumulator chamber, and means interposable between said chambers to permit temporary storage of hay in the accumulator chamber during a compacting operation. Both method and apparatus are disclosed.
Patent ES-412686-A1 (ES)
Title: Refrigeration valve
IPC: F25B41/06
Filed: 1973-03-15
Abstract: Each of the valves shown has parallel flow paths through the body with an expansion valve in the line leading to the evaporator thermostatically controlled by conditions in the return line. A second valve is positioned in the return line and controlled in response to a condition (temperature or pressure) which is indicative of conditions (temperature and pressure) in the evaporator. This arrangement prevents evaporator freezing. The valves are suited for flange fitting by reason of having all ports parallel enabling the valve to be secured to the evaporator (on one side) and to the compressor suction line and the condenser outlet on the other side. Since the thermostatic expansion valve can be "externally equalized" internally and all control functions are incorporated in the single body, the number of connections to be made by the system assembler are minimized. One version is provided with a receiver-drier which can be changed without disturbing other system connections.
Patent ES-412910-A1 (ES)
Title: Process for producing desacetoxycephalosporin derivatives by heating a penicillin-1-oxide in presence of an organic sulfide
IPC: C07D499/00
Filed: 1973-03-22
Abstract: Penicillin-1-oxides are rearranged into the corresponding 3-desacetosycephalosporin derivatives in an inert organic solvent in the concomitant presence of an acid catalyst and an organic sulfide in a good yield and with a high purity.
Patent ES-413237-A1 (ES)
Title: Textile sliver unevenness detecting
IPC: D01H5/38
Filed: 1973-03-31
Abstract: Method and apparatus for automatically reducing variations in the mass of moving staple fiber sliver including a novel textile fiber unevenness detector comprising a plurality of opposing members joined at one end so as to provide therebetween an enclosed passageway, wherein at least one of said members is inwardly and resiliently biased and bears a strain gage responsive to the outward displacement of the member for providing an electrical signal proportional thereto, whereby a textile fiber strand passing through the passageway displaces the unjoined end of the member outwardly thereof against the inward resilient bias thereof in proportion to the thickness and thus the instantaneous mass of the strand. The strain gage provides an electrical signal also proportional to the displacement. The invention also provides evening apparatus for continuously evening the mass of the moving fiber strand and presenting it to a drawing frame at uniform velocity including electrical and mechanical actuation means responsive to the electrical output signal of the unevenness detecting device.
Patent ES-416778-A1 (ES)
Title: Recovery of nitrocellulose from the filtrate obtained after the nitration of cellulose
IPC: C08J11/06
Filed: 1973-07-11
Abstract: A process for the recovery of nitrocellulose from the filtrate obtained by filtering nitrocellulose from the aqueous reaction medium in which it has been formed by the nitration of cellulose, which process comprises flocculating nitrocellulose in the filtrate by the addition of a cationic polyacrylamide as flocculant and then filtering off the flocculated nitrocellulose on a filter having a pre-coated filter layer.
Patent ES-423135-A1 (ES)
Title: Automatic adjusters for vehicle brakes
IPC: F16D65/14
Filed: 1974-02-12
Abstract: An automatic adjuster in which one part comprises an annular plate of which the outer peripheral edge defines a clutch surface, and the said other part incorporates a stem projecting through a central opening in the plate, said clutch means comprising clutch surfaces on an inner face of said annular plate and the outer face of the said other part, and a spring acting between said plate and an end of said stem which projects through said plate to urge said clutch faces into frictional engagement, the re-set member being engageable with an end of the said other part remote from said stem.
Patent ES-430725-A1 (ES)
Title: Anticorrosive coating of steel
IPC: C07F9/38
Filed: 1974-10-05
Abstract: The corrosion protecting action of iron phosphate or zinc phosphate coatings on mild steel is markedly raised by treating with solutions of alpha -aminophosphonic or -phosphonous acids or their water soluble salts. Compounds having more than one amino and more than one phosphonic or phosphonous acid groups are also suitable. Paint films on metal surfaces pretreated in this manner show a considerably better adhesion than on untreated surfaces.
Patent ES-446350-A1 (ES)
Title: Saponification of 1-acetamino-anthraquinone
IPC: C07C225/34
Filed: 1976-03-25
Abstract: In the saponification of 1-acetamino-anthraquinone to produce the corresponding 1-amino-anthraquinone, the improvement which comprises effecting the saponification with aqueous alkali such as a hydroxide, oxide or carbonate of an alkali metal or an oxide or hydroxide of an alkaline earth metal. The saponification is effected in water, which may contain an organic solvent such as alcohol.
Patent ES-448435-A1 (ES)
Title: Pneumatic springs and other telescopic systems
IPC: B60J5/10
Filed: 1976-05-21
Abstract: A telescopic system formed of a relatively slidable plunger rod and cylinder is operated as a pneumatic spring equipped with an end-stroke electrically-actuated indicator. The plunger rod is fitted with a damping piston which is slidably mounted thereon between two stops secured thereto and used as valve members for partially obturating a groove formed on the piston face and communicating with an axial passage through the piston. The cylinder bottom and the slidable piston constitute the two associated contacts of an electric switch and are respectively connected to the terminals of an electric circuit energizing an indicator.
Patent ES-451445-A1 (ES)
Title: Sewing machine base
IPC: D05B73/04
Filed: 1976-09-10
Abstract: A sewing machine having a U-shaped base one portion of which defines a unitary tubular element within which the lower stitching instrumentalities and the driving members therefor are housed. The unitary tubular element is formed so as to prevent any possible leakage of lubricant therefrom and includes guides for the feed dog support bars which are externally accessible for the purpose of locating the support bars in their most advantageous operating position as well as to permit simplified replacement thereof.
Patent ES-451676-A1 (ES)
Title: Cigarette lighter
IPC: F23Q2/16
Filed: 1976-09-20
Abstract: A cigarette lighter comprising a body forming a fuel container, a burner, ignition means, and a cap hinged to the body. The body and the cap have the same cross-section. One of the two parts formed by the body and the cap carries a collar into which the other part is engaged in the closed position of the cigarette lighter. The hinge between the body and the cap is inclosed within the space comprised between said two parts.
Patent ES-454777-A1 (ES)
Title: Mould section for outdoor seating - has Z-crss-section and is made in long length for cutting to size
IPC: A47C5/00
Filed: 1977-01-04
Abstract: The sections are made of reinforced concrete, plastic, synthetic foam, wood chip etc. The sections can be used to build straight, curved or angled assemblies of the required dimensions. They are made industrially in long lengths then cut to the required length and at the required angle. The moulded sections can themselves be used as the basis of further moulds, so permitting manufacture of positive and negative versions of the shapes. The sections are in two groups of shapes with an adjoining relationship between certain points of their structure.
Patent ES-457733-A1 (ES)
Title: Piperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materials
IPC: C08K5/3435
Filed: 1977-04-12
Abstract: Piperidyl esters of the formula < IMAGE > wherein R1 is hydrogen or lower alkyl, R2 is hydrogen, oxyl alkyl, alkenyl, alkinyl, alkoxy-alkyl, aralkyl or lower acyl and n is 2 or 3, and when n is 2, R3 is a diacyl of 36 carbons and when n is 3, R3 is a triacyl of 37 to 54 carbons. These compounds are useful as light stabilizers of polymeric materials.
Patent ES-460659-A1 (ES)
Title: Degaussing circuit in a color television receiver
IPC: H04N9/29
Filed: 1977-07-12
Abstract: A degaussing circuit for a color television receiver, in which the degaussing coil is in series with a PTC thermistor to which an NTC thermistor is thermally coupled and which is at the same time a protection resistance for a supply voltage circuit in the receiver.
Patent ES-461849-A1 (ES)
Title: Sealed wall and its construction method
IPC: E04B1/62
Filed: 1977-08-24
Abstract: An expansion joint between two panels (16, 17) embedded in a soft grouting materials, has a keyhole shaped groove (18, 19) along the edge of each panel into which is fitted a connecting strip (1). This strip has two circular section edge portions (2, 3) to fit into the circular parts of the slots, interconnected by a thin bridging piece (7). This piece is folded or corrugated so that there is no stress if the panels are moved apart. Inside each circular edge portion is a plunger tube (4, 5). The ends of the edge portions can be extended for fitting a tubular connection between them.
Patent ES-471434-A1 (ES)
Title: Incremental dilution dewaxing process
IPC: C10G73/06
Filed: 1978-07-04
Abstract: An incremental dilution dewaxing process for lubricating oil stocks in which the base stock, at a temperature above its cloud point, is cooled with vigorous agitation to a temperature below its cloud point and then further cooled with minimum agitation and incremental solvent addition to its final temperature, followed by filtration for the removal of wax. In this process, rapid stirring is provided during the early part of the cooling period. When the base stock has been cooled with relatively rapid agitation to a temperature below its cloud point, solvent is added to the base stock and mixed therewith and thereafter the mixture is cooled to the final or filtration temperature with essentially minimum agitation of the oil-solvent-wax mixture. It is not necessary for the solvent to be at a temperature below the temperature of the base stock or that of the oil-solvent mixture.
Patent ES-475429-A1 (ES)
Title: Process for the production of aluminium
IPC: C22B21/02
Filed: 1978-11-27
Abstract: A process for the production of aluminium in two steps: 2Al2O3+9C=Al4C3+6CO (ii) and Al4C3+Al2O3=6Al+3CO (iii) Reaction (ii) takes place in a materials addition chamber and reaction (iii) in a high temperature chamber. Slag is circulated between the chambers via conduits and electrical resistance heating is carried out in the conduits. Heating is controlled by differential control of the resistance of the slag in the conduits by the application of gas to at least one of the conduits.
Patent ES-479231-A1 (ES)
Title: Process for the catalytic oxidation of sulphur dioxide to form sulphur trioxide.
IPC: C01B17/765
Filed: 1979-04-03
Abstract: In a process for the catalytic oxidation of sulphur dioxide to sulphur trioxide, an improvement is made possible by introducing commercially pure oxygen at a temperature below 0 DEG C into the process. With reference to Figure 1 of the drawings, a hot gas mixture including sulphur dioxide and oxygen flows from a pipeline (120) into a catalytic converter (102) having four successive catalyst layers (104, 106, 108 and 110). As it flows over each catalyst layer so more of the sulphur dioxide is converted to sulphur trioxide. The gas mixture after having passed over catalyst layer (104) is cooled in an interstage heat exchanger (126). The gas mixture leaving the heat exchanger (126) has liquid oxygen added to it in a pipeline (128). The gas mixture then passes over the second catalyst layer (108). Its temperature just upstream of the catalyst layer (106) is sensed by temperature sensor (115) which is used to control the setting of a valve (113) in a liquid oxygen supply pipeline (101) such that the temperature of the gas mixture is maintained at or above the ignition temperature of the catalyst in the second layer (106).
Patent ES-479769-A1 (ES)
Title: Anthraquinone reactive dyestuffs
IPC: D06P3/66
Filed: 1979-04-20
Abstract: Dyestuffs of the formula < IMAGE > wherein S, m, X, R1, R2, R3, R4 and n have the meaning indicated in the description, and their use for dyeing and printing textile materials containing hydroxyl groups and textile materials containing nitrogen, in particular textile materials of natural and regenerated cellulose, and furthermore of wool, silk and synthetic polyamide and polyurethane fibres. The resulting dyeings are distinguished by good fastness to light and wet processing.
Patent ES-8107194-A1 (ES)
Title: 5-Amino-4-chloro-2-phenyl-3(2H)-pyridazinone free from 5-chloro-4-amino-2-phenyl-3(2H)-pyridazinone, as a selective weed-killer
IPC: A01N43/58
Filed: 1979-06-21
Abstract: The compound 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone free from 5-chloro-4-amino-2-phenyl-3(2H)-pyridazinone is used as selective weed-killer in a remarkably more efficacious and remarkably less phytotoxical way than the presently known "pyrazon" (mixture of 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone and 5-chloro-4-amino-2-phenyl-3(2H)-pyridazinone). The 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone is obtained from pyrazon by treating said pyrazon with a mineral acid of pre-fixed concentration, obtaining a suspension and filtering such a suspension. The use thereof as weed-killer is carried out in suitable formulations.
Patent ES-482475-A1 (ES)
Title: Valves
IPC: F16K1/226
Filed: 1979-07-13
Abstract: A butterfly valve disc 8 is pivotally mounted about an axis perpendicular to and off-set from the valve axis and has a frusto-conical sealing surface 88 which co-operates with an annular surface 50 of a resilient sealing ring 38. Rotation of the disc 8 beyond the closed position results in increased sealing pressure between the two surfaces 50, 88.
Patent ES-8200680-A1 (ES)
Title: 7-Phenyl-quinolizidine derivatives (I), their preparation, pharmaceutical compositions containing them and (I) for use in treating diseases.
IPC: A61K/
Filed: 1979-10-11
Abstract: Phenyl-quinolizidines of the formula < IMAGE > I wherein X, Y, R1 and R2 are as hereinafter set forth, are described. The compounds of formula I are useful as antipsychotics, antiemetics and analgesics.
Patent ES-8100897-A1 (ES)
Title: Linear polyurethane ultrafilter and processes for use thereof
IPC: C08G18/66
Filed: 1980-05-02
Abstract: An ultrafiltration membrane comprised of a linear polyurethane having a hydraulic permeability for water of about 50 to 500 1/m2 x h and a separation factor alpha of about 2x10-3 to 1x10-4, the permeability being based on determination with a membrane of a thickness of about 0.02 mm, a pressure differential of 1 bar and a temperature of 20 DEG C. and the separation factor alpha being established with a 2% oil-water emulsion at 25 DEG C. The membrane is particularly suited for operation of oil-water mixtures or emulsions.
Patent ES-8104204-A1 (ES)
Title: Carboxylic acid hydrazides, process for their preparation, their use and pharmaceutical compositions containing them.
IPC: A61K31/22
Filed: 1980-05-09
Abstract: New carboxylic acid hydrazides of the formula < IMAGE > (I) in which R represents an optionally esterified carboxy group, and salts of the compound of the formula I, in which R represents carboxy, possess antithrombotic properties and can be used as medicinal active substances in pharmaceutical preparations.
Patent ES-8204045-A1 (ES)
Title: Subsea hydrocarbon sensor system
IPC: G01N27/02
Filed: 1980-09-25
Abstract: A hydrocarbon detection system is provided for use in a subsea hydrocarbon production installation which includes production tree assemblies, an electro-hydraulic control module located on the sea floor and remote from the production trees, cable assemblies interconnecting the control module with the production trees through magnetic coupling devices. A pair of inductive elements are electrically coupled by the surrounding sea water. Displacement of the conductive sea water by escaping hydrocarbons affects the coupling between the inductive elements to produce a hydrocarbon-presence-responsive output signal. The inductive elements are resonated within a selected frequency range by capacitors coupled with a primary inductor coil by auxiliary windings on a common core element. An excitation signal sweeps over the selected frequency range at a rate effective to produce a peak detected signal at the resonant frequency. The peak output signal is then monitored to form a control signal functionally related to the presence or absence of hydrocarbons in the sea water.
Patent ES-8106478-A1 (ES)
Title: The use of perfluorosulfonic acid resins as catalysts for preparing esters.
IPC: C07C67/04
Filed: 1980-09-26
Abstract: Esters can be made from the addition of carboxylic acids to olefins in the presence of perfluorosulfonic acid resins.
Patent ES-8204276-A1 (ES)
Title: Machine for compressing straw, hay and the like into balls.
IPC: A01D85/00
Filed: 1981-02-24
Abstract: The agricultural baling machine for forming hay, straw etc. into circular bales has a triangular chamber formed by endless belts, inside which the material is rolled. This chamber is formed by a horizontal belt (12) and the bases (13,14) of two upper belts passing around rollers to form two isosceles triangles, these two belts rotating in opposite directions. These rollers (15,16,1718,19,20) are carried by frames so that they can be swung apart to eject the bale when rolled to a maximum size. The two frames carrying the rollers are attached to springs (22,23) which enable the chamber to increase in size to match the size of the bale as it is rolled. The outermost roller (16,20) is attached to a bell crank lever (31,32) connected to a spring at the other end. A deflector plate behind the horizontal conveyor, which assists formation of the bale can be swung down during bale ejection.