baber/WOPTO huggingface dataset:
Patent ES-370837-A1 (ES)
Title: Variable piezoelectric delay line
IPC: H03H9/38
Filed: 1969-08-25
Abstract: A delay line, Figs. 1, 2, comprises a piezoelectric crystal shaped as a tube 10, the mean diameter of the tube being less than one-half the wavelength of the highest frequency to be propagated. The input electrode structure comprises pairs of electrodes 12, 15 and 13, 16 provided on the outer and inner surfaces of the tube, the opposite end of the tube carrying corresponding pairs of output electrodes 18, 21 and 19, 22. The tube 10 is polarized circumferentially and the input signal from source 30 is connected to the electrode pairs 12, 15 and 13, 16 as shown, to produce an axial field therebetween, this axial field interacting with the circumferential polarization to propagate torsional waves through the tube. These torsional waves generate a corresponding output signal across the electrode pairs 18, 21 and 19, 22 connected to an output circuit 31 in a manner similar to the connections of the circuit 30. The delay time is variable by varying a D.C. supply 33 connected to a pair of electrodes 25, 26 provided on the outside surface of the tube, these electrodes co-operating with a cylindrical inner electrode 28 and functioning as a pair of seriesconnected capacitors. The field developed in the piezo-electric material by the electrodes 25, 26, 28 alters the velocity of propagation of the torsional waves and hence alters the delay. In a modification, Fig. 5, the piezo-electric crystal tube is axially polarized and the input signal circuit 43 develops a circumferential field by using a phase inverter 44 and connecting the input electrode pairs 37, 41 and 38, 40 as shown. In another embodiment, Figs. 6, 7, the piezo-electric crystal tube 50 is radially polarized and the input electrode structure, which produces a circumferential field, comprises electrodes 47, 48 on the outer tube wall connected to an input circuit 46 and a circular electrode 51 on the inner wall. The outer electrode structure is similar and comprises electrodes 53, 54 connected to output circuit 56 and an inner circular electrode (not shown). Control electrodes 57, 59, 58 correspond to electrodes 25, 26, 28 of Fig. 1. To prevent reflections from the crystal ends the ends of the tube 63 may be shaped as shown at 64, 65 in Fig. 8 alternatively, as shown in Fig. 9, the tube ends may have lead plating 93, 94. In a modification of Figs. 1, 2 (Figs. 10-13, not shown) a rectangular slab-shaped piezo-electric crystal is used equivalent to making a longitudinal cut through the cylindrical crystal and then flattening it out. In all the embodiments torsional waves are propagated between the input and output electrodes because the field produced by the input electrodes is orthogonal to the polarization field.
Patent ES-371935-A1 (ES)
Title: Process for the preparation of rubber modified novolak resins
IPC: C08L61/10
Filed: 1969-09-26
Abstract: Polychloroprene modified phenolic resins are produced by allowing an aldehyde to react with a molar excess of a phenol at an initial pH of less than 7 and in the presence of a polychloroprene rubber latex. The aldehyde may be formalin and the phenol phenol itself. A 0À1-50% molar excess of the phenol may be used. The initial pH may be 1-6À9 and the temperature 50-200 C. The acid catalyst may be 1-5% of oxalic acid. The latex may be emulsified with sodium rosinate or an alkylated tolyl methyl trimethylammonium chloride. 5-150 parts of the rubber (dry weight) may be used per 100 parts of formaldehyde. These may be added to the reaction mixtures initially or later, e.g. after the free formaldehyde contact has been reduced below 2% and the pH made alkaline. When reaction is complete the latex medium may be distilled off under reduced pressure. Fillers, phenolic resin curing agents, e.g. hexamethylene tetramine, and rubber curing agent may be added to the product which may be used as a rubber adhesive.
Patent ES-380008-A1 (ES)
Title: Electrical systems for road vehicles
IPC: H01H47/00
Filed: 1970-05-02
Abstract: An electrical system for a road vehicle has a pair of electrical loads and a pair of switches controlling the loads, together with a pair of feed lines. One switch makes one feed line positive with respect to the other and the other switch makes said one feed line negative with respect to the other. Polarity sensitive switching means are then provided for controlling the loads when the switches are operated.
Patent ES-392068-A1 (ES)
Title: Process for flameproofing cellulose-containing fibre material
IPC: C09K21/14
Filed: 1971-06-09
Abstract: A process for the flame-proofing of cellulose-containing fibrous materials by applying to the substrates aqueous preparations containing a self-condensation product of an N-methylolamide of a dialkyl, dihalogenalkyl or dialkenyl phosphonopropionic acid advantageously together with a curable aminoplast precondensate.
Patent ES-398562-A1 (ES)
Title: Structural arrangement
IPC: E04B1/00
Filed: 1971-12-17
Abstract: A structural arrangement for connecting one or more vertical posts to a horizontal girder. A connection is fixed to the end of the vertical post and designed so as to transmit the compressive forces resulting from axial loading. Two ties are mounted on the girder at opposite sides thereof and have their ends adapted to provide bearing surfaces for the vertical post connection. Means are provided for locating the connection in alignment with the ends of the ties to prevent lateral disengagement.
Patent ES-401416-A1 (ES)
Title: Manufacture of 1,1-difluoroethane
IPC: B01J27/06
Filed: 1972-04-03
Abstract: A method wherein vinyl chloride is reacted with hydrogen fluoride at temperatures between 100 and 400 DEG C in the presence of a catalyst based on a vanadium derivative impregnated on activated carbon.
Patent ES-405928-A1 (ES)
Title: Nuclear alkylation of anilins
IPC: C07C211/47
Filed: 1972-08-18
Abstract: The present invention provides a process for the production of phenylamines alkylated in the ortho and/or para positions by alkyl groups of 1 to 4 carbon atoms and unsubstituted on the amino group, which comprises reacting a phenylamine having an ortho and/or para position available for alkylation with an alkanol of 1 to 4 carbon atoms in the vapour phase and with heating to a temperature of from 350 DEG to 450 DEG C, using a catalyst selected from aluminium oxide and aluminium oxide/molybdenum oxide mixed catalyst in which the amount of molybdenum oxide is approximately from 0.01 to 20 percent by weight, which catalyst has a minimum surface area 50 m2/g.
Patent ES-408511-A1 (ES)
Title: Polycyclic alcohols
IPC: C07D307/00
Filed: 1972-09-11
Abstract: Tricyclo[5,4,0,03,9]undec-2-ols, tricyclo[5,3,1,03,8]undec-2-ols, 2H-1-benzopyrans and benzofurans which are useful in the perfumery art and a process for their preparation from tricyclo[5,4,0,03,9]undec-2-ones and tricyclo[5,4,0,03,8]undec-2-ones.
Patent ES-408909-A1 (ES)
Title: Wheeled trolley
IPC: B62B7/08
Filed: 1972-11-23
Abstract: This invention is concerned with a folding four wheeled frame for a pushchair which has two front and two rear upwardly extending supports each of which carries at its lower end a wheel. The supports are pivotally connected to an upwardly extending backbone, and also connected near their lower ends to the lower end of the backbone by means of separate pivotal links. The front supports are connected near their upper ends to a first mounting adjacent to the top of the backbone by means of separate pivotal links, and the upper ends of the rear supports are pivotally connected to a second mounting on the backbone adjacent to the first mounting. The arrangement of the supports, backbone and mountings is such that the two mountings can be moved relatively to one another along the backbone whereupon the pivotal links enable the four supports to swing between a closed position nearer to the backbone and an open position further away from the backbone.
Patent ES-410834-A1 (ES)
Title: 4-(4-biphenylyl)-4-oxobutyramides - with antiphlogistic activity
IPC: A61K31/165
Filed: 1973-01-20
Abstract: Cpds. of formula (I): (where R1 is H, halogen, CN, NO2, or NH2 R2 is H or halogen, R3 and R4 are H, 1-5C alkyl opt. substd. by OH or lower alkoxy, or phenyl opt. substd. by halogen, CF3, OH, lower alkyl, or alkoxy, or NR3R4 is opt. lower alkyl-substd. pyrrolidino, piperidino, morpholino or piperazino), claimed with their acceptable acid addn. salts if they contain a basic gp., have antiphlogistic activity. They may be prepd. by (a) reacting the corresp. 5-(4-biphenylyl)-2(3H)-furanone with HNR3R4 (b) reacting the corresp. acid halide or anhydride with HNR3R4 (c) reducing the corresp. 3-(4-biphenylyl)acrylamide (d) reacting a 4-biphenylylmagnesium halide with N-R3-succinimide (e) hydrolysing the corresp. nitrile (f) reducing (I R1=NO2) to (I R1 =NH2) or (g) Friedel-Crafts condensation of a biphenyl with Hal-CO-CH2CH2CONR3R4
Patent ES-420876-A1 (ES)
Title: Apparatus for laying a pipeline on the sea-bottom from a floating vessel
IPC: F16L1/20
Filed: 1973-11-20
Abstract: Apparatus for laying a pipeline of large diameter on a deep sea-bed without kinking or excessive bending includes a floating vessel having a discharge track sloping downwardly toward the stern to support the outer end of a pipeline for sliding movement and mechanism for imparting tension to a pipeline is mounted on the discharge track. A stinger, adapted to slidingly support a pipeline as it is being laid, is pivotably connected to the discharge end of the track and is formed from articulated ramp segments, each buoyantly supported independently of the others so that its depth in the water may be regulated, whereby the stinger may be caused to extend downwardly from the stern of the vessel along a predetermined slope.
Patent ES-424663-A1 (ES)
Title: Electron microscope for dark-field illumination
IPC: H01J37/04
Filed: 1974-03-26
Abstract: In an electron microscope dark-field illumination is obtained by including an annular diaphragm between the electron source and the second condenser lens and by varying the energisation of the condenser lenses whilst retaining imaging of the electron source on the specimen. The specimen is illuminated by a beam in the form of a hollow cone of varying apical angle. By means of a known objective diaphragm those electrons are selected from the scattered beam for the purpose of image formation which leave the specimen within a narrow cone about the optical axis, irrespective of the angle of incidence.
Patent ES-429531-A1 (ES)
Title: Terminal clip for micromodule
IPC: H01R11/12
Filed: 1974-08-26
Abstract: A conductive sheet-metal clip, to be soldered onto a chip of integrated circuitry, has two prongs interconnected at a base which forms a seat for an edge of the chip fitted between these prongs, one prong being rigid while the other is weakened near the base so as to be resiliently deformable in the plane of the clip. One prong has a pair of projections engaging the chip at two points, near its free end and near the base, whereas the other prong has a projection bearing upon the chip at a point about midway between the first two points. A terminal tab extends from the base in the region of the rigid prong.
Patent ES-433989-A1 (ES)
Title: Method of thermoregulating fluid bed catalytic reactors operating at high temperature
IPC: C07C253/00
Filed: 1975-01-21
Abstract: Method for controlling the temperature in a reactor for exothermic reactions at high temperature, in the presence of a catalytic fluidized bed, which consists in feeding to a cooling device consisting of heat exchange tubular elements arranged inside the fluidized bed, a controlled amount of water such as to be thoroughly evaporated, superheated steam being generated and the fluidized bed temperature control being obtained by regulating the fed water amount.
Patent ES-434861-A1 (ES)
Title: High voltage solid extruded insulated power cables
IPC: H01B13/24
Filed: 1975-02-19
Abstract: This electric power cable, and method of making it, relate to high voltage cables with solid extruded insulation, and the life of the cable is lengthened by protecting the insulation from localized voltage stresses which cause emission of electrons into the insulation. An emission shield is used between a semi-conducting conductor shield and the insulation that surrounds the conductor shield and preferably, for higher voltage cables, an emission shield is used between the outside of the insulation and a semi-conducting insulation shield.
Patent ES-436144-A1 (ES)
Title: Transformer core with composite offset V-miter and step joint
IPC: H01F27/245
Filed: 1975-03-31
Abstract: A step, or butt joint is combined with a V-miter joint to improve the ability of magnetic flux to transition from a yoke member to an inner leg member, or vice versa, to minimize the number of different shaped layers required to form a leg member and to improve inner leg member to yoke member joint strength in a transformer core of the stacked flat-layer type. The V-miter portion of the joint permits the use of a single piece yoke member and the step, or butt portion of the joint reduces joint air gap and therefore joint magnetic reluctance. Structural rigidity at an inner leg member to yoke member joint is improved over that of a transformer core with a yoke having two or more pieces and all layers of said inner leg member have the same shape.
Patent ES-445600-A1 (ES)
Title: Cold rolled, ductile, high strength steel strip and sheet and method therefor
IPC: C22C38/00
Filed: 1976-02-27
Abstract: Cold reduced, annealed steel strip and sheet stock having 0.2% yield strength of 45 to 65 ksi with an elongation of at least 25%, or having a yield strength of at least 90 ksi with an elongation of at least 10%. A low carbon steel (0.02-0.10% C) typical of rimmed or drawing steel analysis is preferably vacuum degassed, and 0.02% to 0.18% columbium is added. The casting is hot rolled, coiled not higher than 1300 DEG F, cold reduced 40% to 70%, and annealed at low temperature for a time sufficient to restore desired ductility without substantially decreasing yield strength.
Patent ES-445711-A1 (ES)
Title: Chromium complex disazo dyes
IPC: C09B45/06
Filed: 1976-03-03
Abstract: Chromium complex dyes of the formula < IMAGE > WHEREIN Z represents a phenyl radical, an alkyl radical of 4 to 12 carbon atoms, a cycloalkyl radical of 5 to 9 carbon atoms or an aralkyl radical of 7 to 12 carbon atoms, S1 represents hydrogen, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 2 carbon atoms, nitro, alkanoylamino of 2 to 3 carbon atoms or alkoxycarbonylamino of 2 to 3 carbon atoms, S2 represents hydrogen, alkyl of 1 to 5 carbon atoms, alkanoylamino or alkoxycarbonylamino, each of 2 to 3 carbon atoms, Me<+> represents a cation, and Ar represents the radical of an aromatic or a heterocyclic diazo component which contains 1 to 3 SO3H groups and is optionally further substituted by carboxy, halogen, alkyl of 1 to 5 carbon atoms, alkoxy of 1 to 2 carbon atoms or nitro.
Patent ES-447436-A1 (ES)
Title: Method and apparatus for conveying and/or heating coal particles in a dense phase flow
IPC: C10B57/08
Filed: 1976-04-29
Abstract: An improvement in a method and apparatus for conveying and/or heating coal particles in a dense phase flow through transfer lines wherein the velocity of the flow through the lines is controlled by a progressive enlargement of line size during indirect heating and/or transfer in the lines thereby minimizing erosion of the transfer lines by the coal particles.
Patent ES-457533-A1 (ES)
Title: Tracks for endless track vehicles
IPC: B62D55/21
Filed: 1977-04-05
Abstract: In a connection between an end connector (301) and bolts (304) of two track elements of a track, the ends of the bolts are clamped tight in recesses (303) of the end connector. The ends of the bolts or the recesses (303) are provided with a plurality of grooves (312). If a clamping force is applied to the end connector perpendicular to the contact faces, residual lubricant and/or other foreign particles are squeezed out of the contact faces and into the grooves. As a result, it is possible to keep the coefficient of friction between the contact faces reproducible and high so that the size of the clamping force at which slipping begins to occur can be defined exactly. In this way, a reliable protection against uncontrolled axial slipping of the bolts (304) with respect to the end connectors (301) is realised.
Patent ES-463912-A1 (ES)
Title: Automatic machine for in particular calibrating fruit and vegetables
IPC: B65G47/84
Filed: 1977-11-05
Abstract: The machine calibrates round, oblong or spherical objects and in particular fruit and vegetables. It comprises a series of spaced-apart rollers which define cavities for receiving the objects. In these cavities, the objects rotate and place their equatorial plane in a vertical position. Calibrating rollers, oriented in a longitudinal direction or slightly inclined relative to the axis of the conveyor and at heights from the latter which decrease in the direction of conveyance of the conveyor, discharge the objects and cause them to drop through a minimum height onto a discharging conveyor placed thereunder.
Patent ES-464330-A1 (ES)
Title: A machine for cutting planks from tree trunks
IPC: B27B25/02
Filed: 1977-11-22
Abstract: A first cutting station 7 has vertical rotary saws 9 for trimming off the side edges of the trunk 2 and a second cutting station 17 for cutting the resulting trimmed trunk into planks is provided with two assemblies of vertically- spaced horizontal rotary saws, one on each side of the machine. The trunk is fed through the first cutting station by endless chains provided with spiked hooks for gripping the trunk. The trimmed trunk is fed to the second cutting station and the planks are discharged from the machine by spiked rollers.
Patent ES-468392-A1 (ES)
Title: Diesel engine and manufacturing system of it
IPC: F02F1/42
Filed: 1978-03-31
Abstract: The air intake symmetrical axis (17) is offset in relation to the cylinder axis and located in a detachable cylinder head. The air intake cross section at the manifold end is rectangular with rounded edges. The cylinder head end of the air intake is machined to give an internal cylindrical surface (16). The cylindrical section has a conical surface at the end furthest from the cylinder head. The machined section symmetrical axis (17) lays at an angle to the remaining non machined part of the inlet channel. The angle is 16 degrees and the angle between the symmetrical angle and the lower flat cylinder head surface (11) is 57.5 degrees.
Patent ES-470273-A1 (ES)
Title: Thermistor circuit
IPC: H05B3/00
Filed: 1978-05-29
Abstract: A thermistor circuit, wherein a thermistor, a current-limiting resistor, a complementary resistor and a desired-value variable resistor are connected together in the form of a resistance bridge, where the one diagonal of the resistance bridge is linked to a comparator, and the output of the comparator is connected to a bridge feed point of the other diagonal of the resistance bridge via an RC element consisting of a resistor and a capacitor and via a switching transistor.
Patent ES-470518-A1 (ES)
Title: Heat exchange devices for cooling the wall and refractory of a blast furnace
IPC: F27D9/00
Filed: 1978-05-24
Abstract: The invention concerns heat exchange devices for cooling the wall and the refractory of a blast furnace. Such a device, constituting a cooling box, comprises: a closed enclosure, elongated and having a shape of revolution or substantially of revolution, this enclosure comprising an outer end and an inner end, an axial chamber defining with said enclosure an annular chamber, this axial chamber comprising an outer end and an inner end, a supply orifice for feeding a cooling liquid into the axial chamber through its outer end. and a discharge orifice for discharging the cooling liquid from the annular chamber through the outer end of the enclosed enclosure deflector means provided between the inner end of the axial chamber and the inner end of the enclosed enclosure, these deflector means being arranged so as to impart to the whole of the flow of the cooling liquid: an axial component, directed towards the inner end of the enclosed enclosure, for cooling the central part of the inner end of this enclosure, a radial component for cooling the rest of the inner end of the enclosed enclosure, an axial component directed towards the outer end of the closed enclosure for causing the return of the cooling liquid, and a tangential component for cooling the part of revolution of the closed enclosure.
Patent ES-474454-A1 (ES)
Title: Combination tank transporter and general cargo trailer
IPC: B62D53/06
Filed: 1978-10-24
Abstract: The present invention is concerned with a trailer for carrying military tanks and convertible for carrying general cargo. The carrier is provided with a floor which has the rear portion raised about a front pivot for loading of tanks, which rear floor portion then is lowered about said front pivot to carrying position in order that the carrier might be stable with a tank in place and in order that the carrier and tank together might provide a low profile. A removable floor bolts in place for the carrying of general cargo.
Patent ES-475196-A1 (ES)
Title: Process for preparing a thiophene derivative
IPC: C07D333/44
Filed: 1978-11-17
Abstract: A process for preparing 5-nitro-2-thenoic acid by oxidation of the corresponding aldehyde is described.
Patent ES-475443-A1 (ES)
Title: Method for the manufacture of twistless or substantially twistless yarn and yarn whenever manufactured by the application of this method.
IPC: D02G3/40
Filed: 1978-11-27
Abstract: In a method for the manufacture of twistless yarn a sliver of staple fibre material is drafted in two drafting zones, which are separated by a neutral zone. The drafting in the first zone occurs in a dry condition and in the second zone in a wet condition. The drafting liquid, which can contain a bonding agent, is supplied to the sliver through a false twister inserted in the neutral zone. This drafting process provides an increased uniformity of twistless yarn in a range of counts of 10-300 tex at a production rate of 300 to 600 m/min.
Patent ES-475750-A1 (ES)
Title: Electromagnetic sound generator for automative vehicles and the like
IPC: G10K9/20
Filed: 1978-11-22
Abstract: An electromagnetic sound generator, such as an automobile horn, has a thin-walled ferromagnetic coil housing with a rim bent back upon itself to form an outwardly projecting peripheral flange embracing a marginal zone of a membrane. A collar formed as an annular extension of that flange, overlying the membrane, engages a thermoplastic ring with freedom of radial expansion of the latter, the ring being cemented or otherwise secured to an overlying resonator with a convoluted shell.
Patent ES-479025-A1 (ES)
Title: Organophosphonic ester compounds, process for their preparation and their utilisation as insecticides, acaricides and nematocides.
IPC: A01N57/10
Filed: 1979-03-28
Abstract: O,S-Dialkyl-O-haloalkyl-phosphorothiolates of the formula < IMAGE > in which R1 is alkyl with 1-8 carbon atoms, R2 is alkyl with 1-8 carbon atoms or alkoxyalkyl with 2-8 carbon atoms, X is hydrogen, halogenoalkyl with 1-8 carbon atoms or alkoxy with 1-8 carbon atoms, and Y is halogen, which possess insecticidal, acaricidal and nematocidal properties.
Patent ES-481720-A1 (ES)
Title: Agent usable for the production of cellulose and process for the production of cellulose.
IPC: C07C49/00
Filed: 1979-06-20
Abstract: 1. Agent for use in obtaining wood pulp, characterised in that it consists of a pulverulent mixture which contains 30 to 98% by weight of one (or more) organic, cyclic compound(s) containing keto and/or hydroxyl groups and which contains 2 to 70% by weight of one or more surfactants.