baber/WOPTO huggingface dataset:
Patent ES-471916-A1 (ES)
Title: Solenoid drive circuits
IPC: H01F7/18
Filed: 1978-07-20
Abstract: A solenoid drive circuit includes two output transistors in parallel paths of relatively high and low resistance respectively. The low resistance path transistor is controlled by a voltage comparator arranged to compare the voltage across a common current sensing resistor with a reference voltage. When the input to the circuit is low, the high resistance path transistor is biased on, but where the current is below a set level, only the low resistance path transistor conducts. Only when the comparator changes state as the solenoid current exceeds its set level does switching off of the low resistance path transistor permit the other transistor to turn on. A delay circuit is included which operates to prevent the low resistance path transistor turning on if there is a short circuit across the solenoid.
Patent ES-472536-A1 (ES)
Title: N-(1,3,4-Thiadiazol-2-yl)benzamides
IPC: C07D285/135
Filed: 1978-08-11
Abstract: Insecticidal benzamides of formula: < IMAGE > wherein R represents < IMAGE > X represents oxygen or sulfur one of R<1> or R<2> represents hydrogen and the other represents fluoro, chloro, bromo, trifluoromethyl or methoxy one of R<3> and R<4> represents hydrogen and the other represents methoxy or trifluoromethyl one of R<5> and R<6> represents hydrogen and the other represents chloro, bromo, fluoro, trifluoromethyl or hydrogen one of R<7> and R<8> represents hydrogen and the other represents C1-C2 alkoxy substituted with one or more fluorine atoms.
Patent ES-482523-A1 (ES)
Title: High purity technical grade phosphoric acid preparation - from wet process phosphoric acid by formation of urea phosphate, purification and treatment with nitric acid
IPC: C01B25/234
Filed: 1979-07-17
Abstract: Process for the preparation of high purity technical phosphoric acid by following successive stages effected in continuous or batch mode -a) crude wet process phosphoric acid, containing 50-54% P205, is diluted with water and/or an aqueous solution of phosphoric acid, optionally containing urea, until it contains 30-50% P205 and 0-8% of urea. Then this product is reacted with 1-4wt% of a composition previously formed from 1 part sodium carbonate and 3-5 parts of reduced phosphorite of particle size less than 150 microns, with a reaction content time of 1-3 hrs. and the product from the reaction is treated with 20-30 ppm of a flocculant in aqueous solution. The liquid phase is decanted from the insolubles and represents 50-95% of the initially introduced P205 and contains 31-50% P205 and 0-7%urea b) the acid from stage a) is treated with urea and the formed urea phosphate crystallised by cooling or heating under reduced pressure to obtain urea phosphate of particle size 100-2000 microns. The mother liquors may be recycled to the first stage and the crystals are lixwated with an equivalent weight of a saturated solution of urea phosphate of recrystallised c) in a third stage, the urea phosphate from b) is used to form an aqueous reaction product containing 35-50%phosphoric acid, 6-21% nitric acid and 4-15% of urea and when equilibrium is reached the urea nitrate and phosphoric acid formed in the reaction are seperated. The crystalline mass is washed with nitric acid and the washings and a fraction of the obtained phosphate acid are recycled to the reaction with a new lot of urea phosphate d) the residual urea and nitric acid content of the phosphoric acid is reduced by concentrating at 90-220deg.C. and 110-760 High quality technical grade phosphoric acid contg. not more than 0.02 wt. parts of impurities per 100 wt. parts P205. This product is suitable for use in galvanic baths (cleaning baths), other industrial processes where ortho- and polyphosphates are used a.
Patent ES-8101067-A1 (ES)
Title: Benzimidazoles, their preparation and pharmaceutical compositions containing them.
IPC: C07D403/04
Filed: 1979-07-24
Abstract: Compounds of the formula < IMAGE > wherein R1 is hydrogen trifluoromethyl alkyl of 1 to 11 carbon atoms cycloalkyl of 3 to 7 carbon atoms hydroxyl alkoxy of 1 to 6 carbon atoms mercapto (alkyl of 1 to 6 carbon atoms)-mercapto phenyl-(alkyl of 1 to 3 carbon atoms) phenyl or mono-, di- or tri-substituted phenyl, where the substituents, which may be identical to or different from each other, are each halogen, alkyl of 1 to 4 carbon atoms, (alkyl of 1 to 6 carbon atoms)-sulfinyl, hydroxyl, alkoxy of 1 to 6 carbon atoms, mercapto or (alkyl of 1 to 6 carbon atoms)-mercapto R2 is hydrogen, alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms or phenyl-(alkyl of 1 to 3 carbon atoms) and R3 is alkyl of 1 to 6 carbon atoms optically active antipodes thereof and non-toxic, pharmaceutically acceptable acid addition salts of said compounds or of said optically active antiposed. The compounds are useful as cardiotonics and antithrombotics.
Patent ES-484232-A1 (ES)
Title: Separation and balance device for telephone exchanges
IPC: H04M19/00
Filed: 1979-09-18
Abstract: The invention relates to automatic outgoing and incoming channel balance and separation circuits between local telephone set lines and network junctors. The separation circuit associated with the telephone set lines possesses an electronic line feed circuit and a separator constituted by an operational amplifier whose output is connected via two equal resistors in series to one of the outputs of the electronic supply circuit, the junction of these two resistors being connected to the output of this separation circuit. The separation circuit associated with the junctor possesses two input amplifiers connected to the network via output resistors of equal value, one terminal of one of these output resistors being connected via a passive resistive and capacitative network to an operation amplifier, and the other terminal of this resistor being connected via a single resistor to this operational amplifier. Balance is provided for given values of the passive network components and for a given value of line impedance seen by the first separation circuit. The device possesses no adjustable components or transformers, and can be easily produced as an integrated circuit.
Patent ES-8103211-A1 (ES)
Title: Apparatus for stripping revolving card flats
IPC: D01G15/78
Filed: 1980-06-27
Abstract: A carding machine has a main cylinder, revolving flats provided with clothing and moving along a circumferential portion of the main cylinder, a cleaning apparatus for cleaning the revolving flats and a suction device disposed underneath the apparatus for removing waste generated during operation of the cleaning apparatus. The cleaning apparatus comprises a flat stripping brush mounted for rotation adjacent the traveling path of the flats for cooperating with the clothing of the flats to remove waste therefrom, a brush cleaning roll mounted for rotation at a small distance from the flat stripping brush to continuously remove waste from the flat stripping brush and a waste collecting bin for catching waste thrown by the brush cleaning roll and for guiding the waste to the suction device.
Patent ES-8105423-A1 (ES)
Title: Method for operating an installation for processing waste paper
IPC: D21B1/32
Filed: 1980-08-29
Abstract: At a fiberizer of a waste paper processing installation the rotational moment or torque is determined, for instance by measuring the drive output of a drive motor. In the presence of an increase of the rotational resistance of the rotor of the fiberizer there is brought about an intensification of the separation of rejects through a reject line and vice versa. For this purpose there are arranged in either the reject line or the good stock line, or at the same time in both such lines, throttle elements which are activated by a regulator. The regulator is controlled by a measuring signal of a measuring device which determines the electrical drive output of the rotor.
Patent ES-8106019-A1 (ES)
Title: Truncated triangular skid pipe member.
IPC: F27D3/02
Filed: 1980-09-10
Abstract: A water-cooled skid pipe suitable for supporting metal shapes such as billets, blooms and slabs in a metallurgical reheat furnace. The skid pipe has a base member, a pair of upwardly extending, converging side members and an apex member connecting the uppermost portions of the side members, all such members defining a passageway therethrough suitable for conducting a fluid. A pair of shoulders extend outwardly of the junction of each side member and the apex member, which shoulders and apex member receive the slag which is deposited by the metal shapes onto the skid pipe and prevent the slag from migrating into the seam between the skid pipe and a surrounding insulator. The shoulders further protect any suitable insulator, which can be applied around the base member and converging side members, from direct contact by the metal shape thereby substantially minimizing the impact of the metal shape upon the insulator. The metal shape can be supported directly by the apex member or by a skid member secured atop the apex member. The invention can be used outside a furnace as an improved structural support member.
Patent ES-8105877-A1 (ES)
Title: Record carrier containing information in an optically readable information structure, as well as apparatus for reading said carrier.
IPC: G11B7/24076
Filed: 1980-09-25
Abstract: A record carrier is described in which information is recorded in an optically readable information structure comprising trackwise arranged information areas as well as an apparatus for reading said record carrier. By arranging the adjacent information track portions on different slopes the track spacing can be reduced without increasing crosstalk.
Patent ES-8205535-A1 (ES)
Title: Frozen confection reforming method and equipment
IPC: A23G9/04
Filed: 1981-03-31
Abstract: A method and equipment is described for producing three dimensional shaped frozen confection products on a stick. A molded slug of frozen confection is converted into a three dimensional frozen confection having any desired shape including shapes having variable cross-sections and undercut portions. The desired final shape is formed by the application of pressure to the slug, without significant melting of the slug, using a split mold which defines the final three dimensional shape by controlling the temperature of the slug and the relative size and shape of the slug and mold cavity.
Patent ES-8201897-A1 (ES)
Title: Identity card or document with integrated security thread.
IPC: B42D25/40
Filed: 1981-04-03
Abstract: The invention relates to a security filament to protect against forgery of bank notes, securities, permit cards, identity cards and passports, whereby the safety thread has a cross-sectional shape by which it can be identified optically and is provided with structural features on its surface which extend invariably over the length of the thread.
Patent ES-8204696-A1 (ES)
Title: Process for the production of electrolytic zinc or high purity zinc salts from secondary zinc raw-materials
IPC: C22B3/38
Filed: 1981-07-24
Abstract: The present invention relates to a process for the production of either electrolytic zinc or high purity zinc salts from secondary zinc raw materials which comprises: leaching said raw material in a slightly acid aqueous solution at controlled pH, separating the reaction mixture into a leaching liquor containing the leached zinc and a solid residue which after suitable washing is descarted directing the zinc-bearing liquor to a solvent extraction facility where it is brought into contact with an organic solution containing organic acids as cationic extraction reagents, by means of which, an ion exchange of zinc by hydrogen ions is achieved, resulting in a zinc loaded organic solution and in an aqueous solution containing the stoichiometric acidity to the extracted zinc recycling the acid aqueous raffinate to the previous leaching step where it is used as the slightly acid aqueous solution to carry-out the zinc leaching from the raw material sending the zinc organic extract to a stripping facility where it is brought into contact with a strong acid solution of zinc sulphate, by means of which an ion exchange of zinc by hydrogen ions takes place, thus producing a concentrated solution of zinc sulphate and an organic solution free of zinc, containing the stoichiometric acidity to the stripped zinc, which is recycled back to the previous step to perform the zinc extraction directing the concentrated zinc sulphate aqueous solution either to an electrowinning facility to produce electrolytic zinc, or to a crystallization plant for the production of pure zinc sulphate recycling back to the previous step of zinc stripping either the spent electrolyte from the electrowinning facility or the mother liquors from the crystallization plant to form, after suitable sulphuric acid make-up, the strong acid solution of zinc sulphate, by means of which zinc stripping from the organic extract is achieved.
Patent ES-8206413-A1 (ES)
Title: Process for preparing 3,4-substituted benzaldehydes.
IPC: C07C47/575
Filed: 1981-12-14
Abstract: A 3,4-substituted benzaldehyde is prepared by the process: < CHEM > wherein A is -OH, X or -OCOCH3, X is halogen, and R<1> and R<2> are each H or C1-4 alkyl but are not both H, or R<1> and R<2> together are C1-4 alkylene Examples of the aldehydes are heliotropin and veratraldehyde.
Patent ES-8305789-A1 (ES)
Title: Process for preparing a latex of vinylacetate-olefine copolymers.
IPC: C08F218/08
Filed: 1982-08-09
Abstract: Process for the preparation of latices of vinyl acetate/olefin copolymers. Vinyl acetate is copolymerized with at least one olefin and, if desired, at least one other copolymerizable monomer, in aqueous emulsion, in the presence of an initiator, an emulsifier and a protective colloid comprising a water-soluble polymer (a) containing at least one monomer of acrylamide, methacrylamide or substituted or unsubstituted N-alkyl derivatives of acrylamide or methacrylamide and a water-soluble polymer (b) of ethylene glycol having a molecular weight between 1,000 and 50,000. The latices may be applied as binders in the manufacture of paints, glues, paper, textiles, floor coverings and mortar additives.
Patent ES-8305223-A1 (ES)
Title: Apparatus and method for controlling and mixing a liquid subjected to a centrifugal force.
IPC: G01N21/07
Filed: 1982-08-26
Abstract: A process and a device for the centrifugal control and mixing of a limited volumes of fluid, especially in the rotor of a centrifugal analyzer, has at least one baffle chamber, in a flow canal for the fluid the volume of which is greater than the volume of fluid. It is so shaped that, when the device is rotated at a sufficiently high first speed of rotation, the fluid remains in it. An outlet canal is connected to the baffle chamber the fluid. At least a part thereof lies closer to the axis of rotation than the fluid surface during the rotation with the first speed of rotation. The walls of the outlet canal consist of a material which is wettable by the fluid and, in combination therewith, have cross-section which forces the fluid out of the baffle chamber by boundary surface force when the device is rotated at a second, slower speed.
Patent ES-8401137-A1 (ES)
Title: Gas-entrained particulate feed system
IPC: B65G53/66
Filed: 1982-12-01
Abstract: Apparatus is provided for preventing reaction forces on a flow control valve from affecting measurements of particulate feed rate, where such measurements are made using weighing devices to determine the amount of particulates in a supply container as a function of time. The apparatus includes means for applying sufficient compressive prestress to spacer bars for absorbing reaction forces on the valve so that extension of the staybars is prevented during particulate feeding. Movement of the container due to reaction forces on the valve is prevented and particulate feed rate errors are substantially eliminated.
Patent ES-8404060-A1 (ES)
Title: Display unit of speedometer for automobile.
IPC: G01R13/40
Filed: 1983-04-19
Abstract: A display unit of a speedometer meter for an automobile, wherein a desired car speed is determined and an actual car speed is measured and signals corresponding thereto are applied to a comparing circuit and bar graph decoders. The comparing circuit compares the amplitude of the signals corresponding to desired car speed and actual car speed, and the bar graph decoders, after decoding the signals into a format compatible with a bar graph display, transmits the signals to an EX-OR circuit and an OR circuit. A selector circuit controlled by the output of a comparing circuit selects either the output of the EX-OR circuit or that of the OR circuit for driving plural segments of a bar graph display which accordingly displays both desired car speed and actual car speed either by driving selected display signals corresponding thereto or by driving display segments corresponding to a maximum value thereof and by inhibiting the driving of at least one display segment common to both desired car speed and actual car speed.
Patent ES-8402192-A1 (ES)
Title: Method of making surfaces with accurate dimensions and frictional behaviour from cast iron containing carbon.
IPC: B23P9/00
Filed: 1983-04-27
Abstract: The invention relates to a process for producing accurately scaled, well-defined surfaces of workpieces made from carbonaceous cast iron and having tribologic properties, more particularly of cylinders or internal combustion engines, said surfaces being subjected to at least two operating cycles consisting of an electrochemical and a subsequent mechanical removal. To obtain a constant surface quality, at least the last operating cycle is carried out in a specified ratio between the electrochemical and the mechanical removal and this is a fixed removal ratio. Preferably, a metal bearing plateau percentage of 40 to 65% of the surface is produced with the last operating cycle.
Patent ES-8404463-A1 (ES)
Title: Device for keeping the lubricant level constant in an internal combustion engine.
IPC: F01M11/06
Filed: 1983-06-09
Abstract: This invention relates to a device for automatically keeping lubricating oil to level in internal combustion engine oil pans, which device comprises a tubular stick (1) effective to be inserted into the engine oil pan (4) of an internal combustion engine and positioned with its bottom port substantially at the level to be maintained for the oil in the pan with the engine in operation. The cited tubular stick (1) is connected, externally to said engine, to the middle leg (9) of a branching off fitting (10) which has a first leg (11) connected to a first line (12) and open to the bottom of an auxiliary oil reservoir (20), and a second leg (14) connected to a second line (15) open to the top of said auxiliary reservoir (20). The cited auxiliary reservoir (20) is a sealed one and located at a higher level than the engine oil level to be maintained within said oil pan (4).
Patent ES-8404268-A1 (ES)
Title: Device for moving dosing pistons and filling nozzles.
IPC: B65B39/12
Filed: 1983-08-03
Abstract: The subject of the invention is an apparatus for moving dispensing pistons (5) and filling tubes (18) in the charging of containers, it being necessary on the one hand during the dispensing and depending on the filling product, to vary the rate and on the other hand to suit the travel rate of the filling tube to the rising filling level. This is achieved substantially by the fact that the dispensing piston (5) and the filling tube (18) are operated in each case with the assistance of screwed spindles (7 and 11), the drive being provided through infinitely variable electric motors (10, 12). Programmes can very readily be set for the individual movements, the drive being controlled for this purpose and the spindles (7, 11) being particularly suitable for the transmission of the movement.
Patent ES-8406599-A1 (ES)
Title: Electrically operated, water-fillable apparatus.
IPC: D06F75/16
Filed: 1983-09-21
Abstract: Electrically operated water-containing apparatus, for example steam smoothers are described. A particular geometrical construction provides inherent electrical safety features and additionally prevents overfilling. In one embodiment the electrical members (19, 15) are at one end of the device while a filling chamber (12) is located at the other.
Patent ES-8505400-A1 (ES)
Title: A process for the production of low-asphaltenes hydrocarbon mixtures.
IPC: C10G69/02
Filed: 1984-04-16
Abstract: Deasphalted oils and distillates are produced from asphaltenes-containing hydrocarbons by two-step solvent-deasphalting (yielding a high quality DAO-1, a DAO-2 of lower quality and asphalt) and converting the DAO-2 or the asphalt by catalytic hydrotreatment into a product having a reduced RCT, which is separated by distillation into distillate fraction(s) and a residue which is subjected to thermal or catalytic cracking or which is used as feed component for solvent-deasphalting and the cracked product is separated by distillation into distillate fraction(s) and a residue which is used as feed component in solvent-deasphalting, or by subjecting the DAO-2 to thermal or catalytic cracking and/or the asphalt to thermal cracking and converting a distillation residue of the cracked product(s) by catalytic hydrotreatment into a product having a reduced RCT, which is separated by distillation into distillate fraction(s) and a residue which is used as feed component for solvent-deasphalting.
Patent ES-8502420-A1 (ES)
Title: Process for the desensitization of water insoluble peroxyacids.
IPC: C07C67/00
Filed: 1984-05-16
Abstract: 1. A process for the desensitisation of water-insoluble, aliphatic or aromatic peroxy carboxylic acids by means of sodium sulphate, characterised in that the known reaction of water-insoluble carboxylic acids with aqueous hydrogen peroxide is carried out in the presence of sulphuric acid to form the corresponding water-insoluble peroxy carboxylic acids at temperatures from the conversion point of sodium sulphate decahydrate into thenardite to 60 degrees C, after which, optionally after cooling to at most the abovementioned conversion temperature of sodium sulphate decahydrate into thenardite, the sulphuric acid present in the mixture is reacted in situ to form sodium sulphate using quantities of sodium hydroxide which are sufficient to produce a pH of from 2 to 6, whereupon the resultant reaction product is separated from the reaction mixture and dried.
Patent ES-8504989-A1 (ES)
Title: Polyester yarn, self-texturing in fabric form.
IPC: D01F6/62
Filed: 1984-07-02
Abstract: A polyester yarn having filaments with aperiodic varying shrinkage levels along their lengths, the filaments having within-filament and between-filament shrinkage C.V.'s of at least 10%. The yarn may be made by conventional melt spinning within a critical narrow range of spinning speeds wherein yarn shrinkage decreases rapidly with spinning speed. A greige fabric incorporating the yarn as filling is textured by shrinking the unrestrained fabric, then heating the fabric sufficiently to cause the yarn to elongate.
Patent ES-8600878-A1 (ES)
Title: Decaffeination of green coffee beans
IPC: A23F5/20
Filed: 1984-09-11
Abstract: The process described in this specification improves the decaffeination of both wet and dry coffee beans using a liquid or supercritical carbon dioxide extraction agent, dissolving dimethyl sulphoxide in the extraction agent prior to contact with the beans. The speeds of extraction are much improved, especially in the preferred method in which dimethyl sulphoxide is used at levels close to saturation.