baber/WOPTO huggingface dataset:
Patent ES-354094-A1 (ES)
Title: Operational amplifier
IPC: H03F3/45
Filed: 1968-05-20
Abstract: This invention relates to an operational amplifier comprising two differential amplifiers coupled together in cascade one of the outputs of the second amplifier providing a negative feedback to both inputs of the second amplifier, the output of the combination being taken from one of the outputs of the first amplifier. In Fig. 3, the two differential amplifiers comprise transistors T 1 , T 2 and T 3 , T 4 respectively with current sources S 1 , S 2 in their respective common emitter lines and impedance Z in the collector circuit of T 3 providing the negative feedback to that same amplifier. The output from this operational amplifier, providing improved drift and stability characteristics, is taken from the base of T 4 . Fig. 2 (not shown) has T 5 in the feedback path to T 3 instead of that to T 4 while Fig. 1 (not shown) is without a transistor in either feedback path.
Patent ES-356961-A1 (ES)
Title: Substituted phenylacetic acids and esters thereof
IPC: C07D207/327
Filed: 1968-08-06
Abstract: Substituted phenyl acetic acids, addition salts thereof with bases as well as esters thereof, which compounds exhibit useful antiinflammatory (antiphlogistic), analgesic and antipyretic activity, and processes for the production of these compounds, as well as starting materials used in said processes therapeutic compositions containing these compounds, and methods of treatment, particularly methods of inducing antiinflammatory, analgesic and antipyretic effects in mammals. Illustrative embodiments are 2-[p-(1-pyrryl)-phenyl]-butyric acid, [3-chloro-4-(1-pyrryl)-phenyl]-acetic acid and 2-[p-(1-pyrryl)-phenyl]-propionic acid methyl ester.
Patent ES-359084-A1 (ES)
Title: 2-Aza-adamantane-2-carboxamide (I) Antiviral agent, active against viruses provoking encephalitis or encephalomyelitis. From 2-aza-adamantane (II) a
IPC: C07D451/14
Filed: 1968-10-11
Abstract: 2-Aza-adamantane-2-carboxamide (I) - Antiviral agent, active against viruses provoking encephalitis or encephalomyelitis. - From 2-aza-adamantane (II) as follows:- (1) (II) + cyanic or isocyanic acid or carbamic acid deriv. (2) (II) deriv. of 2-COOH + NH2 (I) (3) (II) 2-CN (I) - A soln. of (II).HCl (5.2 g.) in water (30 ml.) is treated with KCNO (2.43 g.) and the mixt. heated at 100 deg. for 2 hrs. After cooling, the ppt. is extd. with CH2Cl2 the residue from this is recrystd. from benzene-cyclohexane to give (I), m.p. 148-50 deg.
Patent ES-374546-A1 (ES)
Title: Multistation, single channel analytical photometer and method of use
IPC: G01N21/07
Filed: 1969-12-13
Abstract: In a photo-metric solution analyzer the samples are contained in cuvettes 9 located in the periphery of a power-driven rotor assembly 1, each liquid sample being formed from reagents and reactants which are placed in separate chambers 15 when the rotor is at rest but which are mixed together and urged outwardly through the passage 16 into the cuvette when the rotor is rotated. The transmissivities of the separate samples are displayed on a CRO 25, Figs. 3-5 (not shown), which is connected to the output of a photo-multiplier 20. The chambers 15 are located in a detachable plate, and after an initial mixing and consequent analysis of a solution in each cuvette, a new plate 15 containing a different combination of reagents and reactants may be introduced, and the effect of these new reagents and reactants on the sample in the corresponding cuvette may be determined photo-metrically by again rotating the rotor. To ensure adequate mixing, the rotor is first accelerated rapidly to transfer liquid to the cuvettes, is then decelerated rapidly to facilitate mixing, and finally reaccelerated to a suitable speed for testing. The apparatus may be applied to the determination of a common substance in a multiplicity of discrete samples.
Patent ES-385968-A1 (ES)
Title: Highly attenuated newcastle disease virus vaccine and production thereof
IPC: A61K39/17
Filed: 1970-11-27
Abstract: A method of producing an attenuated Newcastle disease vaccine comprises: (1) cultivating Newcastle disease virus either by at least 20 serial passages in a porcine tissue culture or for at least 2 months in porcine stable cell lines to produce porcine cells containing attenuated virus, (2) inoculating this on to the chorioallantoic membrane of a chick embryo and cultivating the chick embryo and (3) recovering the virus from the resulting complex of chorioallantoic membrane and porcine cells and subjecting it to at least 2 serial passages in the allantoic cavity of a chick embryo. The procine tissue culture may contain primary kidney cells. Step (1) may be carried out by persistent infection of porcine stable cell lines with the virus. The virus recovered in step (3) may be further cultivated in a culture containing chick embryo cells to produce the vaccine.
Patent ES-393165-A1 (ES)
Title: Apparatus for scoring sheet material
IPC: C03B33/10
Filed: 1971-07-10
Abstract: A cutter assembly for scoring a score line in a surface of sheet material, is connected to the piston of a double-acting pneumatic cylinder and piston operable to urge the cutter assembly towards the surface to be scored.
Patent ES-406766-A1 (ES)
Title: Load responsive switch
IPC: B60R22/48
Filed: 1972-09-16
Abstract: A load responsive switch that is responsive, for example, to the weight of an operator or passenger on the seat of an automobile. The switch is actuated by the deflection of a composite beam comprising upper and lower metal strips which are separated by a plastic spacer. At one end of the beam, the ends of the upper and lower strips are connected to each other. At the other end of the beam, the lower strip is fixed to a housing for the switch, and the corresponding end of the upper strip is free. In this manner, when the beam is flexed in response, for example, to the weight of a driver or passenger on the seat of the automobile, the end of the upper strip moves into the switch housing to change the state of the switch. The housing is provided with a slide member movable longitudinally therein, and a cover for closing the upper portion thereof. Two terminals are contained in the housing and the switch is closed when the contact arms of a bus bar mounted in a slot in the slide member engage the terminals. The plastic slide has a central rib frictionally received between fingers on the end of the upper strip. Overtravel of the upper strip is accommodated by movement of the free end thereof relative to the sides of the central rib of the slide member.
Patent ES-409433-A1 (ES)
Title: Article of furniture or the like
IPC: A47B13/02
Filed: 1972-12-07
Abstract: An article of furniture or other similar load bearing structural article comprises a laminate of flat, corrugated cardboard pieces conforming generally to the cross-sectional shape of the article. The plane of each piece is generally parallel to the direction in which the load is predominantly applied with the flutes of adjacent corrugated cardboard pieces extending at right angles to each other. The individual pieces are secured together adhesively and, if desired, support stringers and end pieces may be used for increased rigidity and, thus, improved stability.
Patent ES-419989-A1 (ES)
Title: Vacuum cleaner construction
IPC: A47L9/04
Filed: 1973-10-26
Abstract: A nozzle unit for a vacuum cleaner has a housing provided with an opening, and a brush disc is located in the housing and has bristles extending outwardly through the opening. A mounting arrangement mounts the disc so that it rotates about an axis which extends substantially normal to the plane of the opening, permitting the disc to be displaced inwardly of the opening along its axis of rotation. A biasing spring yieldably resists such inward displacement, and a sealing arrangement seals the mounting arrangement and the biasing spring with reference to the ambient atmosphere.
Patent ES-426360-A1 (ES)
Title: Aluminum alloy products and methods of preparation
IPC: C22F1/04
Filed: 1974-05-16
Abstract: Dispersion strengthened aluminum alloy products are produced by working a cast aluminum alloy having a content of unaligned intermetallic rods in a selected size range to break up the brittle intermetallic rods. The intermetallic rods form 5.0 - 20 per cent by volume of the alloy and have an average diameter in the range of 0.1 - 1.5 (preferably 0.1 - 0.8) microns.
Patent ES-433470-A1 (ES)
Title: Device for assembling and conveying prefabricated elements for walls and partitions of buildings
IPC: E04C2/04
Filed: 1974-12-31
Abstract: A method of assembling and conveying pre-fabricated wall elements for buildings having their edges formed with longitudinal assembling grooves with injection of a settable binder therein, consisting in disposing said elements separately on a support with juxtaposition thereof in the proper wall-forming sequence, assembling same through injection of said binder and conveying the assembled elements resting on said support to the building site.
Patent ES-436925-A1 (ES)
Title: Process for the preparation of cyanuric acid
IPC: C07D251/32
Filed: 1975-04-24
Abstract: An improved process for forming cyanuric acid wherein urea and/or biuret, dissolved in a solvent, are heated in the presence of a dissolved acid or a corresponding anhydride or ammonium salt to produce cyanuric acid so that byproducts ammeline and ammelide are produced in amounts no greater than 1 % by weight of the product.
Patent ES-443109-A1 (ES)
Title: Method of and apparatus for handling fabric workpieces
IPC: B65H3/22
Filed: 1975-12-01
Abstract: A device for transferring a preselected number of sheets of material from several stacks and depositing the sheets at a location. The device comprises a pick-up head which is adjustable on selection to pick up from a first location one or two sheets, pick up one or two sheets from a second location and deposit the assembly of sheets at another location or feed same through a processing machine.
Patent ES-443666-A1 (ES)
Title: Means and method for controlling the occurrence and the duration of time intervals during which sparks are provided in a multicylinder internal combustion engine
IPC: F02P5/155
Filed: 1975-12-18
Abstract: A control system controls the occurrence and the duration of time intervals during which sparks may be provided in the cylinders of an internal combustion engine driving a crank shaft as a function of loading parameters on the engine. In an automotive engine control system, parameters such as the vacuum in the carburetor, the throttle setting and the torque of the crank shaft are sensed, and corresponding signals are provided by the sensor. A distributor provides a pulse signal having a repetition rate corresponding to the rotational speed of the crank shaft. A frequency-to-voltage converter converts the pulse signal to an output voltage. The sensed parameter signals and the voltage from the converter are summed. The sum signal is used to control a one-shot multivibrator which is triggered by each pulse in the pulse signal from the distributor. The sum signal controls the width of the pulse from the one-shot multivibrator so as to control the timing of the various sparks in the engine's cylinders. The voltage provided by the frequency-to-voltage converter is applied to another one-shot multivibrator which is triggered by the output from the first one-shot multivibrator to control the width of the pulse provided by the second one-shot, the pulse provided by the second one-shot is applied to the ignition system and controls the duration of the spark time interval being applied to each cylinder, as a function of the rotational speed of the crank shaft.
Patent ES-443918-A1 (ES)
Title: Tap transport device
IPC: B24B41/00
Filed: 1975-12-29
Abstract: A tap transport device is used in combination with a thread-cutting machine having a chuck adapted to hold a workpiece to be threaded and to rotate this workpiece about a threading axis. The tap transport device comprises a support frame adjacent the machine on which a carrier is displaceable in a first direction transverse to the threading axis. A workpiece feed gripper and a workpiece removal gripper are mounted on the carrier and hydraulic cylinders are provided for opening and closing these grippers and thereby grasping and releasing a workpiece. A magazine is provided on the support frame spaced in the first direction from the threading axis for holding a plurality of unthreaded workpieces and feeding these workpieces to the workpiece feed gripper. A hydraulic ram is provided for displacing the carrier in a second direction transverse to the threading axis and to the first direction between a feed position with the feed gripper aligned in the first direction with the threading axis and a removal position with the removal gripper aligned in the first direction with the threading axis. Yet another cylinder can displace the carrier in the first direction between an outer end position with the grippers aligned in the second direction with the magazine and an inner end position with the grippers aligned in the second direction with the threading axis. Thus when in the inner end position displacement of the carrier into the feed position aligns a workpiece in the feed gripper with the threading axis and displacement of the carrier into the removal position aligns the workpiece in the removal gripper with the threading axis. Another cylinder is provided for displacing the carrier in a third direction generally parallel to the axis.
Patent ES-451987-A1 (ES)
Title: Device for incorporating an identification marker in a roll of textile substance
IPC: D06H1/00
Filed: 1976-09-30
Abstract: An automatic device for incorporating an identification marker in a reel or roll, the device having an applying member for placing a new leading end of a textile substance and also the marker against a rotary roll or reel support member, and marker positioning heads for automatically removing a respective marker from a marker container and positioning the marker on the applying member before the applying member is moved up against the rotary support member.
Patent ES-459788-A1 (ES)
Title: Telephone unit control circuit - is used for two channel independent switching and has resistance bridge capacitance and transistor
IPC: H04Q3/54
Filed: 1977-06-15
Abstract: A control circuit of an individual unit in a telephone system enables command over one of an independent pair of control paths (ib1) or (ib2). The control circuit (cc) includes a resistance bridge network receiving command signals over the two paths. The resistance bridge (R1) to (R4) has a mid-point take off through a capacitor (C) to feed the base of a transistor (TR). The emitter stage of the transistor provides command signals via resistor (R6) to the unit (OC).
Patent ES-465879-A1 (ES)
Title: Method of manufacturing an electrically controllable pivoting mirror device
IPC: G11B7/22
Filed: 1977-01-11
Abstract: A method of manufacturing an electrically controllable pivoting mirror device for an optical video-disc player, which pivoting mirror device comprises a frame as well as a mirror which with the aid of a plastics bearing with a height of less than 3 mm is fixed to a bearing support. The elastic bearing is first manufactued as a finished part and it is not until after this that it is connected to the pivoting mirror and, as the case may be, to the bearing support. In accordance with a suitable embodiment of the method the bearing is manufactured from chloroprene rubber with the aid of a molding process and is connected to the bearing support during the molding process.
Patent ES-466428-A1 (ES)
Title: Drill bit with suction jet means
IPC: E21B10/18
Filed: 1978-01-21
Abstract: This drill bit comprises a plurality of rollers provided with cutting teeth or inserts. At least one upwardly directed eduction jet is created and the bit comprises at least one nozzle located between two adjacent rollers and creating at least two fluid jets respectively directed towards these two adjacent rollers.
Patent ES-473140-A1 (ES)
Title: Electric switch assembly
IPC: H01H13/02
Filed: 1978-09-06
Abstract: Fixed contacts and corresponding terminals of the two switches are mounted in the case. The switch has an operating element (15, 15a) for the first switch (13a, 22) accessible from outside, which can linearly slide in the case (11). There is an operating element (24) for the other switch (14a, 31) which can slide inside the first operating element n15, 15a) relative to the case (11). When moved, it bridges fixed contacs (14a) of the other switch.
Patent ES-474341-A1 (ES)
Title: Method and apparatus for the spinning of yarn
IPC: D01H4/08
Filed: 1978-10-19
Abstract: A method of spinning fibres to form a yarn wherein the fibres are condensed in an internal groove and a rotating annular member and the condensed fibres are peeled from the groove and passed between two surfaces of rotation co-axial with the annular member and rotating at different speeds so that the assembly of fibres peeled from the groove is caused to roll on its axis between the two surfaces of revolution as the assembly of fibres pass in an axial direction therebetween so that the fibres are twisted to form a yarn.
Patent ES-475152-A1 (ES)
Title: Load sensing proportioning valve
IPC: B60T8/28
Filed: 1978-11-16
Abstract: A valve for use in vehicle hydraulic brake systems for the purpose of limiting the rear wheel brake pressure relative to the front wheel brake pressure in order to reduce the potential for premature rear wheel lock. The valve includes a proportioning piston which operates to limit the fluid pressure delivered to the rear wheel brakes and an inertia member which senses changes in vehicle loading. When a vehicle is fully loaded, the inertia member remains in a position where it will disable the proportioning piston in its open position and, consequently, the rear wheel brake pressure will be equal to the front wheel brake pressure. When the same vehicle is unloaded, the inertia member moves in response to deceleration to a position where it will not disable the proportioning piston so that the rear wheel brake pressure will be reduced relative to the front wheel brake pressure.
Patent ES-476730-A1 (ES)
Title: Mixing machine with wedge-shaped or ploughshare-like mixing tools
IPC: B01F15/00
Filed: 1979-01-10
Abstract: An impeller-type mixing machine is provided with movable wedge-shaped or ploughshare shaped mixing tools. Each tool has a tip running upstream and lateral cheeks emanating from it and acting as working surfaces. At least one of the cheeks is placed obliquely to the direction of movement of the mixing tools. The cheeks of each mixing tool run at an obtuse angle to the longitudinal axis thereof.
Patent ES-476762-A1 (ES)
Title: Mechanical system for distributing thread in the tying of bales in rotary baling machines
IPC: A01F15/14
Filed: 1979-01-11
Abstract: A mechanical system for the distribution of thread (18) used for tying bales in rotary baling machines includes a pulley (1) driven through a clutch (9) from the motive system of the machine. The pulley has an eccentric pivot (12) on which is articulated a tube (13) which guides the tying thread (18) and is automatically reciprocated to feed the tying thread during rotation of the bale so that a greater density of turns are obtained at the ends of the bale than at the centre of the bale. A thread cutting mechanism (16), (17) is actuated by a lever (14) and cable (15).
Patent ES-478054-A1 (ES)
Title: Adjusting device for adjusting the position of an optical or opto-electronic component in two directions of adjustment which are perpendicular to each other
IPC: G11B7/13
Filed: 1979-02-24
Abstract: The position of an optical or opto-electronic component, such as a lens or a plate provided with a number of light-sensitive semiconductor diodes, can be adjusted in two directions of adjustment which are perpendicular to each other with the aid of an appropriate adjusting device. The adjusting device comprises two bending hinges consisting of portions of a leaf spring, which bending hinges are perpendicular to each other, the one hinge being bent relative to a stationary frame to which the adjusting device is secured and the other bending spring being bent relative to the first bending spring. The two bending springs may consist of portions of a single unit manufactured from a suitable spring material.
Patent ES-480378-A1 (ES)
Title: Integral suspension member
IPC: B60G13/00
Filed: 1979-05-09
Abstract: The present invention relates to a suspension member which cooperates with a bracket, a traction bar, and a shock absorber in order to connect a wheel assembly to a vehicle frame. The suspension member comprises a sheet of metal which is deformed to receive and fixedly secure a spindle which rotatably supports a wheel assembly. The suspension member is engageable with a brake assembly to support the latter relative thereto and also opposes torque developed during braking. In a preferred embodiment the suspension member comprises a pair of metal sheets which are deformed to form mirror images of each other so that upon fastening, they support the spindle and cooperate with the brake assembly to provide braking for the wheel assembly.
Patent ES-483336-A1 (ES)
Title: Toy camera having picture ejection mechanism
IPC: A63H33/30
Filed: 1979-08-10
Abstract: A toy camera having a housing shaped to depict a camera including a view finder, a lens, and a flash turret has an opening in the housing allowing ingress and egress into the interior of the housing. A plate representing a picture has a flat surface and is capable of fitting into the opening such that it can be inserted and retained in the housing. An ejection member is located in the housing in position to operatively interact with the plate when the plate is inserted in the housing such that upon activation by the operator of the toy the plate can be ejected from the housing. Also located within the housing is a braking member which is positioned to bear on the flat surface of the plate as the plate is ejected from the housing. The braking member effectively retards or slows down the ejection of the plate from the housing and concurrently deposits a thin film of fluid on the flat surface of the plate.
Patent ES-484248-A1 (ES)
Title: Foldable luggage carrying device
IPC: B62B1/12
Filed: 1979-09-18
Abstract: A foldable luggage carrying device is disclosed which has relatively moveable frame members which enable the device to be convertible into multiple position for different uses. When used as a luggage carrier a second frame member is moved into position as an extension of the first frame member and luggage is carried on a luggage support at the bottom of the first frame member. The second frame member includes a seat unit and seat back so that if desired a user can place a support or prop on the ground so that the second frame member will be perpendicular to the first frame member to form a seat. If it is desired to carry the unit without luggage, the frame elements are moved into an inoperative position such that the support and both frame members are collapsed and locked together. This results in a compact and easy to carry unit.
Patent ES-8105528-A1 (ES)
Title: Ceramic permanent magnet type generator and method of fabricating same
IPC: H02K21/28
Filed: 1980-03-21
Abstract: The stationary inductor (6) has ceramic permanent magnets (8) as the active material. The magnets are arranged with alternating polarity around the circumference of the inductor. Laminated pole shoes (9) join like poles of adjacent magnets and also form the pole face opposite the armature (7). The flux from two adjacent magnets passes through each pole shoe, but in conjunction with the armature each magnet (8) has a complete and individual magnetic circuit. The shoes (9) can be shaped to suit the total flux at any point. The shoe and magnet assembly are typically held in some form of casting or encapsulation (10). There is a better regulation than more conventional designs, a sharper knee in the voltage-speed curve and lower short circuit fault currents.