baber/WOPTO huggingface dataset:
Patent ES-347447-A1 (ES)
Title: Process for Stabilizing Macromolecular Polyacetals
IPC: C08L39/00
Filed: 1967-11-22
Abstract: Oxymethylene polymers are stabilized with 0.05 to 10% of a polymer of a compound of formula (an N-vinyl-azetidinone or N-vinylpropiolactam) in which R 1 , R 2 , R 3 and R 4 are hydrogen, straight or branched chain aliphatic radical of 1 to 12 carbon atoms or an alicyclic or aromatic radical. Conventional bisphenols and acetophenone, benzophenone or triazine derivatives may also be incorporated. The oxymethylene polymers may be acetylated formaldehyde homopolymers or trioxan copolymers. Comparative examples with other poly-N-vinyl lactams are included. The N-vinyl azetidinone polymer may be a homopolymer or a copolymer, particularly with N-vinyl-N-methyl formamide.
Patent ES-349568-A1 (ES)
Title: Apparatus for controlling rolling of watercraft
IPC: B63B39/06
Filed: 1968-01-20
Abstract: A roll stabilizer for a ship comprises a fin 15 rotatable about a shaft 9, the shaft having forked limbs 9a, 9b each pivotable on a pin 7, 8 secured in housing 16, a spindle 4 being secured to the fin and via a coupling joint to a drive shaft 1. The drive shaft 1 which rotates the fin is operated by a unit 20 itself operated by an electric motor. The coupling joint comprises a bar 2 on the drive shaft mounted in a guide block 3 which engages a forked member 6 on the spindle 4. Bar 2 is coaxial with pins 7, 8 when the pin is in its zero position. The pin is pivotable on pins 7, 8 into the ship. The pivoting is effected by hydraulic piston cylinders (29, Fig. 2, not shown) which move levers (28) to pivot a shaft (24) which moves lever (23), rod (22) and a lever (21) fastened to limb 9a, thus pivoting shaft 9 and the pin 15.
Patent ES-351752-A1 (ES)
Title: Scilliglaucosidin-19-ol-alpha-l-rhamnoside
IPC: C07J19/00
Filed: 1968-03-18
Abstract: Pharmaceutical compositions suitable for oral, parenteral, or rectal administration comprise the novel cardioactive steroid scilliglaucosid-19-ol 3-([alpha]-L-rhamnoside) together with a suitable carrier or excipient. The compositions may in addition include other cardioactive substances such as scilla or digitalis glycosides, pyrimidopyrimidine derivatives and theophylline derivatives (e.g. 7-#-hydroxypropyltheophylline). Sympathomimetic substances may also be included.
Patent ES-360687-A1 (ES)
Title: Adjustable guide for the forming zone of a paper machine
IPC: D21F9/00
Filed: 1968-11-15
Abstract: Apparatus for guiding a travelling belt comprises a thin sheet which is as wide as the belt, presenting a contoured, longitudinally extending guide surface to the belt, a plurality of transversely extending bars in longitudinal succession acting on the surface of the sheet opposite to its guiding surface, each bar having adjustment means urging it against the sheet to selectively alter the shape of the guidesurface. The adjustment means may comprise a transversely-spaced pair of rods connected to the ends of each bar and to a transverse backing support, each of the rods being axially-expandable, and each backing support may be movable to adjust both ends simultaneously. In a paper-making machine, this apparatus may be used to guide one of a pair of forming wires to give a zone which is narrow, and convergent. The sheet and the adjustable means may be carried in a housing which is swingable about a point remote from the sheet for limited adjustment of the sheet as a whole. In use, "incipient webs" are said to form on each wire, and these then become a single web as the convergence is traversed.
Patent ES-361624-A1 (ES)
Title: Nuclear reactor fuel elements
IPC: G21C3/04
Filed: 1968-12-19
Abstract: A tubular fuel pin for use in a fuel assembly of a liquid metal cooled fast breeder reactor comprises inner and outer tubular sheaths 1, 5 of stainless steel secured by welding to an upper end fitting 3 with the lower end of the main length 28 of the outer sheath 5 welded to a flange 33 of an outer sheath part 29, a sleeve part 34 of which is a clearance fit on the lower end portion 24 of the inner sheath 1. The lower end portion of the outer sheath 5 is formed in three parts 29, 30, 31 butt-welded to one another, the part 31 also having a sleeve part 37 which is a clearance fit on the lower end portion 24 of the inner sheath 1. The part 31 which terminates the annular space between the sheaths 1, 5 has a single longitudinal bore 38 communicating with a capillary tube 39 helically wound around the exterior of the outer sheath 5 with its upper end 61 in a recess 62 in an inwardly sloping part 63 of the upper end fitting 3. A bellows seal 41 between the sheaths 1, 5 consists of spaced coaxial sleeve parts 42, 43 welded to the lower end portion 24 of the inner sheath 1 and trapping between them the upper cylindrical part 44 of a bellows 45, the lower cylindrical part 46 of which is trapped between the sleeve part 34 of the outer sheath part 29 and a sleeve part 47 welded to the sleeve part 34. A further bellows seal 49 is secured in a similar manner immediately below the bellows seal 41. The annular space between the sheaths 1, 5 contains in descending order an annular distance-piece 7 abutting the end fitting 3, a column of stacked annular pellets 8 of breeder fuel, an annular separator 9, fissile fuel 10 in the form of vibrocompacted particles of mixed UO 2 and PuO 2 within which five spacers 12 are disposed equidistantly, an apertured platform 11, a body 15 of molybdenum knitmesh, an apertured platform 14, a spacer ring 20, a column of annular breeder fuel pellets 21, and an apertured retaining ring 22. The spacers 12 are of stainless steel and have radial projections 13, the positions of which are staggered from one spacer to the next. These spacers provide a measure of prevention against fuel clumping after inadvertent overheating by acting as chills. The remainder of the fuel pin serves largely as a reservoir 27 for gaseous fission products and is sealed by the bellows seal 41. Should this seal fail, the gas will leak into the annular space 48 situated beneath the seal and containing the bellows seal 49, from which space the gas is discharged through the tube 39 into the coolant at the upper end of the fuel pin. The tube 39 provides a long capillary path for decay of short-lived fission products and serves, by engagement with the outer sheaths of adjoining fuel pins, to space the fuel pins in a fuel assembly. An orifice plate 59 is mounted in the bore of the lower end fitting 56, the orifice area being chosen to control the flow of coolant through the inner sheath 1. The fuel pins in the outer region of a fuel assembly may have a larger orifice area than do those in the central region.
Patent ES-363111-A1 (ES)
Title: Purification of phthalic anhydride by batch distillation,accumulation and continuous distillation
IPC: C07C51/573
Filed: 1969-01-30
Abstract: Pure phthalic anhydride is recovered from the oxidation product of o-xylene and/or naphthalene by a process wherein the oxidation product is subjected to batch distillation in a first distillation stage successively to separate the low boiling components and a stream comprising partially purified phthalic anhydride as separate fractions from higher boiling components and from residue-forming components, and wherein phthalic anhydride is continuously distilled from the partially-purified phthalic anhydride under subatmospheric pressure in a second distillation stage.
Patent ES-364309-A1 (ES)
Title: Stop mechanism for a cam brake
IPC: F16D65/14
Filed: 1969-03-03
Abstract: A rotary cam-actuated internal shoe drum brake mechanism comprises a cam 118 secured to a rotatable shaft 128, a first lever 126 secured to the shaft for rotative angular adjustment relative to the shaft, an operating device 122 connected to the first lever and a stop mechanism to limit cam movement to the maximum effective brake shoe displacement position of the cam comprising a second lever 130 fixed to the shaft and an abutment engageable by the second lever at the maximum displacement position of the cam when the operating device is fully actuated. The shaft 128 is mounted on a bearing 145 in a tube 140 attached to a backplate 104 and is rotated by a lever 126 driven by a fluid actuator 122. The lever 126 includes a rotatable worm 152 in engagement with a worm gear 150 on a splined end of the shaft to advance the shaft relative to the lever to compensate for brake wear. An angled arm 130 with teeth engaging the splines of the shaft reacts against a fixed member 120 to prevent excessive rotation of the shaft and cam. The position of the arm indicates the amount of brake wear. In another embodiment the arm abuts the actuator support 121. Specification 1,232,690 is referred to.
Patent ES-366611-A1 (ES)
Title: Apparatus for testing switching type voltage regulators by counting square wave pulses produced by the regulator
IPC: G01R31/00
Filed: 1969-04-19
Abstract: A voltage regulator for a generator, of the kind which controls, in dependence on the generator output voltage, the mark-to-space ratio of a continuous rectangular pulse train applied to the field winding of the generator, is tested by applying to the regulator a signal simulating the generator output and determining whether the regulator produces the requisite pulses, an indication being given after detecting that a certain number of pulses have been produced. In the testing circuit of Fig. 2 the voltage across capacitor 46 simulates the generator output and is applied to the regulator via terminals 11a, 12a. The pulse train which is, or should be, produced by the regulator is received at terminal 13a, and, after amplification by transistor 53 is applied to transistor 43 to control the voltage across capacitor 46, thus simulating the operation of a generator. After, say, twenty pulses have been produced the regulator is presumed to be satisfactory and diode pump circuit 61-66 lights lamp 68. Meter 73 checks the simulated generator output voltage. To protect the test circuit against a possible short circuit in the regulator under test between terminals 11a, 12a, transistor 48 responds to the consequent discharge of capacitor 46 to reduce to a safe value the output of the voltage stabilizing circuit 37, 42 via which the test circuit is supplied. Diode test. A further test to check that a diode in the regulator circuit (23), Fig.1 (not shown) conducts satisfactorily when forwardbiased is made by closing switch 69 to change over relay contacts 71a, b. The diode is thereby connected in series with resistor 58 between the emitter of transistor 43 and terminal 12a so as to be forward-biased. Meter 73 is connected across the diode and resistor 58 and reads a high value-off the upper end of its scale - if the diode conducts satisfactorily, and a low value-off the other end of its scale - if it is unsatisfactory.
Patent ES-372733-A1 (ES)
Title: Vehicle transmission mechanism incorporating gear ratio interlock
IPC: F16H59/04
Filed: 1969-10-10
Abstract: In a motor vehicle transmission in which speed-ratios are established by energizing individual solenoids S 1 ... S 5 , through switches G 1 ... G 5 , possible damage due to simultaneous energization of more than one solenoid is avoided by switching off a transistor T 1 , which is normally maintained conductive, by a resistor R 3 to supply all the solenoid switches G 1 ... G 5, switch off being in response to the sensing of voltage at a common point 12 connected directly to each of the solenoids through a resistor R 11 ... R 15 respectively. Potential at the common point 12 is applied to the base of a transistor T 3, the emitter of which is connected to potentialdividing resistors R 1 , R 2 across the supply poles 10, 11 (10 is negative as shown). When only one gear solenoid S 1 &c. is switched on, one resistor R 11 &c. is in series with all the remainder in parallel and the voltage at 12 is such that the transistor T 3 is non-conductive. With two solenoids switched on, two resistors R 11 &c. in parallel are in series with the remainder in parallel and the voltage at 12 is rendered sufficiently positive with respect to the negative pole 10 to render the transistor T 3 conductive through resistors R 4 , R 6 , which in turn renders a transistor T 2 conductive, zeroizing the base-emitter potential of the transistor T 1, which thereby ceases to conduct, deenergizing all the solenoids. The transistor T 3 is maintained conductive through a resistor R 5 , so that the transistor T 1 remains non-conductive until the supply is discontinued. A capacitor C 1 and diodes D 1, D 2 provide discharge paths and delay, to avoid action due to transients and surges. In Fig. 2, not shown, the polarity of the supply 10, 11 is reversed transistor T 1 is now a NPN, and T 3 a PNP instead of the reverse shown in Fig. 1 an additional transistor (T 5 ) is associated with the transistor T 1, and an amplifying transistor circuit (T 4 ) is provided between T 3 and T 2 and there is a latching circuit comprising a resistor (R 11A ) and diode (D 4 ) between the common point 12 and the base of T 1, together with a further diode (D 3 ) between the collector of T 2 and base of T 1 . This maintains the transistor T 3 conductive after T 2 has switched off T 1 .
Patent ES-380196-A1 (ES)
Title: Liquid storage system
IPC: B65D90/42
Filed: 1970-05-08
Abstract: To reduce the fire risk when flammable liquids are stored in bulk, the surface of the liquid is completely occupied by closely packed hollow buoyant spheres formed of moulded plastics. Preferably a sufficient number of said spheres is provided to form a blanket on the surface of the liquid consisting of several layers, for example four layers. Depending on the nature of the liquid and on the storage conditions within the container no special additional precautions may be necessary but in some cases means may be included for supplying an inert gas to a point above the liquid level, or means may be provided for supplying a fire-fighting foam on to the blanket formed by the hollow spheres so that the foam is caused to spread over the surface of the stored liquid. The hollow spheres may contain within them fire-extinguishing media and the spheres may be arranged for ready fracture or bursting under fire conditions. Further the plastics material from which the spheres are made may include fire-retarding media.
Patent ES-380617-A1 (ES)
Title: Method for continuously galvanizing steel strip
IPC: C23C2/38
Filed: 1970-06-10
Abstract: A method of galvanizing strip steel is disclosed in which a continuous strip moving in a horizontal plane, after passing through preparation steps, is caused to enter a bath of molten zinc below the level of the surface of that bath. The strip still moving in a horizontal plane passes through the bath and exits therefrom from a location below the surface. After cooling, the strip may be coiled or partially roll-formed and cut to desired lengths. The disclosure includes the steps of forming or partially forming the strip prior to its entry into the bath.
Patent ES-381544-A1 (ES)
Title: Colour television display arrangement
IPC: H04N9/28
Filed: 1970-07-07
Abstract: In a colour television tube isotropic astigmatism is corrected by providing four toroidal correction coils 20-23, Fig. 3, which are arranged to produce a quadrupole field and which are fed with currents proportional to the squares of the deflection currents. As shown in Fig. 3 the coils 20-23 may be wound in the gaps between the deflection coils 25 and 26 on a common core coils 20 and 23 are wound in the opposite sense to coils 21 and 22 so that when the coils are energized in series a quadruple field is produced (Fig. 4, not shown). As an alternative the coils 20-23 may be located on the neck of the tube underneath the deflection coils. When the tube uses three electron guns in delta formation the usual dynamic convergence unit is provided, and the correction coils are fed with currents of the form ax2-by2 adjustable currents proportional to x or y may be added to correct for asymmetry between the coil halves or for gun alignment errors (Fig. 11, not shown). When the tube uses three co-planar beams, or if the tube is of the single beam index type, the coils are supplied with currents of the form ax2 + by2, and a separate convergence unit is not necessary.
Patent ES-391707-A1 (ES)
Title: Continuously-variable-magnification afocal lens system
IPC: G02B15/17
Filed: 1971-05-19
Abstract: A zoom lens for cameras is provided which comprises four groups. The third group consists of a biconcave lens both surfaces of which have the same radius of curvature, and the fourth group consists of a biconvex lens both surfaces of which have the same radius of curvature. In combination of these third and fourth groups with the first and second groups, the spherical aberration as well as astigmatism of the lens system may be limited within a very small range and a flat image is obtained.
Patent ES-395238-A1 (ES)
Title: System for producing an aperiodic vibrato signal
IPC: G10H1/043
Filed: 1971-09-20
Abstract: A system for producing a vibrato signal which varies in frequency in a manner uncorrelated with time in an electronic musical instrument, in which at least two dissonant signals are applied to a control input of each tone generator via a gate circuit, a divider chain and a low-pass filter.
Patent ES-399692-A1 (ES)
Title: Extensible universal joint
IPC: F16D3/24
Filed: 1972-02-11
Abstract: An extensible universal joint of the type comprising two interlaced heads each having arms, and a plurality of balls each located between each pair of adjacent arms, the balls being guided in races which are formed in confronting surfaces of the arms and extend to the end of the arms. A clip secured at the end of each arm comprises portions protruding on the surface of the races formed in this arm to prevent accidental dislocation of the joint.
Patent ES-400219-A1 (ES)
Title: Yarn feeding device
IPC: B65H51/06
Filed: 1972-02-28
Abstract: A yarn is wrapped around a portion of a rotary element which is rotating in the direction of feed. The periphery of the rotary element includes a plurality of openings through which an air stream is induced, the air stream tending to urge the yarn out of engagement with the rotary element, whereby the tension and frictional effect on the yarn around the rotary element may be varied in response to downstream conditions in order to obtain constant tension in the yarn being delivered to downstream machines regardless of the tension on the yarn as it is received at the rotary element from a supply source.
Patent ES-408259-A1 (ES)
Title: Insecticide varnish
IPC: C09D5/14
Filed: 1972-11-04
Abstract: A process for the production of a varnish possessing contact insecticidal activity, comprising dissolving or dispersing at least one suitable insecticide product in a polar organic solvent compatible with the insecticide, the resulting problem or emulsion being incorporated at ambient temperature, in an emulsified base for varnish which is compatible with the polar solvent.
Patent ES-414286-A1 (ES)
Title: Ultrasonic remote control receiver
IPC: H04N5/00
Filed: 1973-05-02
Abstract: An ultrasonic remote control receiver wherein an incoming ultrasonic signal is converted to square wave pulses of the same frequency by a Schmitt trigger circuit digital circuits are thereafter used to count pulses resulting from the incoming signal over a predetermined period of time a decoder activates one of a plurality of outputs in dependance to the number of pulses counted, provision is made to prevent interference signals from producing undesired control outputs.
Patent ES-420961-A1 (ES)
Title: Turbine engine with valved, rotating combustion chamber
IPC: F02B57/10
Filed: 1973-11-29
Abstract: The engine includes a rotatably supported, axially elongated cylindrical rotor formed with a plurality of equiangularly spaced axially elongated chambers all located at the same radial distance from the rotor axis. Each chamber has a closed inner end and an outer end connected to a respective discharge passage extending through an axial end surface of the rotor. Alternate chambers communicate with one axial end surface of the rotor and intermediate chambers communicate with the opposite axial end surfaces. A pair of stators engage the opposite end surfaces of the rotor, and each is provided with a circular series of radial stator vanes communicating, at the inner radial end, with the discharge passages extending through the respective adjacent end of the rotor. Each end surface of the rotor has a respective circular series of radial rotor vanes communicating at their inner radial ends with the outer radial ends of the associated series of stator vanes. Each chamber has, substantially at its midpoint, a radial fuel supply passage and, as the rotor rotates, the fuel supply passages are sequentially and successively aligned with a fuel supply pipe. Between its fuel supply passage and its discharge passage, each chamber has associated therewith a respective gate which is spring biased to an open position completely clearing the associated chamber and is operable, by a ring cam surrounding the rotor, to be moved to a position closing the associated chamber immediately after fuel has been supplied to the chamber. Adjacent its inner end, each chamber has associated therewith an ignition device, such as a spark plug, which, as the rotor turns, engages an electrical contact to ignite the fuel mixture then in the associated chamber shortly after the associated gate has closed. Following the ignition, the ring cam permits the associated gate to open to that the combustion gases are discharged through the discharge passages into the stator vanes, to propel the rotor by reaction, with the combustion gases being redirected into the rotor vanes to provide a further rotor propelling action and with the combustion gases then being discharged from the radially outer ends of the rotor vanes through discharge passages extending through the stators. The engine is particularly designed for use with a metallic fuel, such as pure metallic dust or a catalyzed metal fuel, with the metallic dust being preferably suspended in a gel which immediately liquifies in the combustion chamber to form a fuel in addition to the metal powder.
Patent ES-422749-A1 (ES)
Title: Cooled exhaust valve for an internal combustion engine
IPC: F16K1/32
Filed: 1974-01-30
Abstract: An exhaust valve for an internal combustion engine that is cooled by circulation of cooling fluid such as water in internal conduits of the valve rod and valve head is described. The valve rod of this head is protected from chemical corrosion in the region thereof whose temperature in operation corresponds to the dew point. Thus, the exhaust gases can combine with water vapor to provide a corrosive chemical that corrosively attacks the usual metal of the valve rod in said region. To avoid this corrosion an externally located outer coating that is a metal alloy resistant to the chemical corroding action is applied to the surface of the valve rod in and about said region. In order to provide smooth unbroken continuity in external diameter of the valve rod in its adjoining alloy coated and uncoated portions the diameter of the valve rod in said region is reduced by an amount sufficient to accommodate the thickness of the applied alloy coating. This alloy may comprise carbon chromium, molybdenum, tungsten, iron, cobalt and nickel - or simply tungsten carbide with cobalt.
Patent ES-423075-A1 (ES)
Title: Process for the preparation of 1,5- and 1,8-dinitroanthraquinone
IPC: C07C205/47
Filed: 1974-02-09
Abstract: Preparation of 1,5- and/or 1,8-dinitroanthraquinone, characterised in that 1,5-dinitroanthraquinone is directly precipitated from the anthraquinone nitration mixtures by a adjusting the molar fraction of nitric acid to a value of gamma HNO+293 = 0.90 to 0.68 at molar ratios of nitric acid:dinitroanthraquinone of 10:1 to 80:1 1,8-dinitroanthraquinone is then precipitated from the filtrate by adjusting the molar fraction of nitric acid to a value of gamma HNO+293 = 0.80 to 0.50 at molar ratios of nitric acid:dinitroanthraquinone of 10:1 to 80:1.
Patent ES-423484-A1 (ES)
Title: Bis(triazinylamino) stilbene compounds
IPC: D06L3/12
Filed: 1974-02-21
Abstract: New stilbene derivatives of formula: