baber/WOPTO huggingface dataset:
Patent ES-264290-A1 (ES)
Title: Hydrogenation of aromatic hydrocarbons
IPC: B01J23/58
Filed: 1961-01-24
Abstract: The hydrogenation of aromatic hydrocarbons is effected at superatmospheric pressure and not more than 427 DEG C. with hydrogen in the presence of a catalyst comprising an alumina-containing support containing minor proportions of a platinum group metal and an alkali or alkaline earth metal. The aromatic hydrocarbon may be a benzene of alkyl benzene or naphthalene. The catalyst support may contain minor amounts, with respect to the alumina, of silica, titania, zirconia and boria and may contain 0.1-2% of platinum, palladium, ruthenium or rhodium and up to 5%, preferably 0.01-0.7% of caesium, lithium, rubidium, sodium, magnesium, calcium, barium and/or strontium a halogen may also be present. The catalyst is prepared conventionally by impregnation, drying and calcining. The aromatic compound is preferably treated in three or more reactors containing equal amounts of catalyst. The feed, e.g. benzene, is split into equal portions each of which is fed to a reactor to the first reactor is also fed a cyclohexane recycle in an amount of 0.5-5 mols per mol of total benzene charge and sufficient hydrogen at 6.8-68 atmospheres pressure to leave at least 4 mols per mol of hydrocarbon in the product effluent. The feed to the first reactor is heated and the effluent from each reactor is mixed with the further benzene feed and cooled before passing to the next reactor. The total benzene charge to the total catalyst is fed at a rate of 1-5 vol./vol./hr. Unreacted hydrogen is separated, mixed with fresh hydrogen and treated to remove hydrogen sulphide by washing with aqueous caustic soda and water. The hydrogen is thus saturated with water which may be present in an amount up to 1% mol of the aromatic hydrocarbon. The catalyst is not poisoned by sulphur which may be present in the feed in amounts up to 3 p.p.m. The product contains less than 0.1% mol of aromatic hydrocarbon.
Patent ES-293619-A1 (ES)
Inventor: GREEN EDWARD HOWARD
IPC: B65D83/14
Filed: 1963-11-19
Abstract: Una estructura de válvula para un recipiente de pulverización presurizado del tipo que tiene una pieza de cubierta adaptada para cerrarse herméticamente a la parte superior del recipiente, incluyendo dicha estructura de válvula la citada pieza de cubierta, un agujero central en la pieza de cubierta, una empaquetadura anular elástica que tiene un agujero central, un armazón de válvula hueco que tiene un tubo de inmersión montado a su extremo inferior, un émbolo de válvula alternativa en el armazón que tiene en su interior un casquillo ciego que abre a la parte superior del émbolo y estando el casquillo ensanchado en ese punto para formar una canalización cuyo piso inferior está en un plano perpendicular al eje del casquillo y determinando una enérgica unión con el mismo.
Patent ES-343351-A1 (ES)
Title: Method of removing deposited carbon from a thermal cracking apparatus
IPC: B01J19/24
Filed: 1967-07-22
Abstract: A thermal cracking apparatus for manufacturing ethylene from naphtha which comprises a pyrolysis furnace 1 with internal piping 2 and a transfer line exchanger 5 is decoked by passing an oxidizing gas through the heated furnace to oxidize deposited carbon from the apparatus whilst the combustion products are passed out through the branch pipe 8. The gas passed into the furnace at the start of the decoking operation suitably comprises 100% steam and subsequently comprises a proportion of air which is increased up to 100%.
Patent ES-345992-A1 (ES)
Title: 2,7-di-(heterocyclic amino)-4-amino-6-phenyl-pteridines
IPC: C07D475/08
Filed: 1967-10-11
Abstract: The invention comprises compounds of formula wherein Ar is Ph optionally substituted by halogen, NO 2 , OH, alkyl or alkoxy R 1 and R 3 are pyrrolidino, piperidino or piperazino, optionally substituted by OH or alkyl, or one of R 1 and R 3 may be morpholino, optionally alkyl-substituted and R 2 is dialkylamino, alkyl cycloalkylamino or alkyl aralkylamino, substituted by 1 or more OH group and acid addition salts thereof. These compounds are prepared by reacting with R, H, R 2 H or R 3 H (as required), the corresponding precursor of the above compounds having in place of either R 1 and/or R 3 or R 2 , halogen atoms or substituted OH or SH groups. Pharmaceutical compositions for oral, rectal or parenteral administration comprise compounds of the above formula with a conventional carrier or excipient. The compounds have a cardiovascular, and especially a coronarydilating activity.
Patent ES-347919-A1 (ES)
Title: Process for the isolation of cephalosporin c
IPC: C07D501/28
Filed: 1967-12-04
Abstract: Cephalospirin C is purified or isolated from a culture broth by adding 2,4,6-trinitro benzene sulphonic acid, or a salt thereof, to an aqueous solution of cephalosporin C and recovering the so-formed N-2,4,6-trinitro-phenyl cephalosporin C from the solution. The pH of the reaction is 7 to 10 and preferably 8.5 to 9.0. The product is recovered by (a) extraction with a waterimmiscible solvent or mixture of solvents, e.g. methylisobutyl ketone, ethyl acetate or a mixture of n-butyl acetate and n-butanol (1:1) at pH 1 to 3, preferably 1.8 to 2.0, (b) precipitation at pH 1 to 3. The product may be converted to the dibenzhydryl ester by treatment with diphenyldiazomethane. This ester is converted to 7-aminocephalosporanic acid benzhydryl ester by treatment with phosphorus pentachloride in anhydrous methylene chloride and pyridine. 7-ACA benzhydryl ester is converted to 7-aminocephalosporanic acid by treatment with trifluoracetic acid in anisole. Specifications 810,196, 968,324 and 1,041,985 are referred to.
Patent ES-348717-A1 (ES)
Title: Oxidation of ammonia
IPC: C01B21/26
Filed: 1967-12-28
Abstract: A mixture of ammonia and oxygen is made with a volume ratio of 1 part of NH 3 to 1À10 to 1À27 (preferably 1À20 to 1À26) parts of O 2 , and the mixture diluted with steam. The oxygen content of the mixture is less than usually employed in other processes for the catalytic oxidation of ammonia. The resulting gas mixture is reacted over a catalyst of platinum or platinum-rhodium alloy at 800 C., to 950 C. The duration of contact of the gases with the catalyst is important, and therefore the flow rate must be between 0À06 and 0À3 m/sec. (calculated at 0 C. at 760 mm. Hg.), the optimum flow rate being at 0À12 m/sec. The working up of the reacted gases is effected by washing with the steam condensed out, and water if necessary, to remove higher nitrogen oxides as nitric acid. The yields of nitric oxide obtained are 80% to 92% based upon the amount of ammonia used. Nitrogen and nitrous oxide are produced in small quantities as impurities, and nitric acid is obtained as a by-product.
Patent ES-352471-A1 (ES)
Title: Machine for securing and electrically connecting an electrical cable to an electrical connector
IPC: H02G1/12
Filed: 1968-03-28
Abstract: The description is identical with Specifications 1,209,761 and 1,209,762 but the claims relate to a connector crimping machine having a wire-stripping mechanism mounted on a carriage which is moved after the stripping jaws have been moved together and by the same actuating mechanism. which moves the jaws.
Patent ES-352528-A1 (ES)
Title: Phenazine derivatives
IPC: C07D241/52
Filed: 1968-04-08
Abstract: Novel phenazine derivatives of formula <F\1> wherein X represents an amino group which may be substituted by alkyl, substituted alkyl, phenyl, cycloalkyl, phenylalkyl, or cycloalkyl-alkyl groups, or X represents a saturated mono nuclear, nitrogen-containing heterocyclic group having 5 or 6 atoms in the ring, which may include a second oxygen, sulphur or nitrogen atom, and optionally be substituted by one or more alkyl, substituted alkyl or phenylalkyl groups, which is attached through a nitrogen atom to the -CO- group, and, when X in cludes a basic amino group, acid addition salts, or, if the basic group is tertiary, quaternary ammonium salts thereof, are prepared by re acting 2-carboxyphenazine-5,10-dioxide with N,N1-carbonyldiimidazole and reacting the 2-(1 - imidazolyl) - carbonylphenazine - 5,10 - di oxide formed with an amine HX. The term "substituted alkyl" indicates an alkyl group which may be substituted by hydroxy, C1 - 6 alkoxy, amino, amino substituted as stated above in the definition of X, and nitrogen-containing heterocyclic groups as defined above. The alkyl groups referred to throughout contain up to 6 carbon atoms. Therapeutic compositions having anti-cancer properties, which may be administered orally, parenterally or rectally, contain as active ingredient at least one of the phenazine deriva tives of the formula given above or non-toxic acid addition and quaternary ammonium salts thereof.
Patent ES-357628-A1 (ES)
Title: Supervisory circuit for unattended repeaters
IPC: H04B17/40
Filed: 1968-08-28
Abstract: In a carrier current communication system employing uni-directional repeaters in a signalling path, which repeaters are powered over the signalling path, the power circuits of the repeaters are bi-directional and control signals in a first frequency band are passed along the path and through each power circuit in delayed fashion in a direction opposite to the signalling direction causing the repeaters to respond in succession by returning a response signal in a second frequency band over the signalling path. A second path may be provided for signalling in the other direction. The two paths may be independently monitored (at the receiver end) or the two paths may be serially connected through a filter and monitored by a single unit. As shown square wave pulses 22 generated at 21, are differentiated at 23 and applied to the line 1. At the repeater (Fig. 2), each differentiated pulse passes through a low pass filter 8 to the power circuit of the repeater. The power circuit comprises a direct through path comprising a band stop filter 10 and a Zener diode 11 which connects between the low pass filter 8 and a low pass filter 9, and a supervisory unit enclosed in the dashed line 12. The differentiated pulse enters the supervisory unit via a transformer 13 and an amplifier 14 and is delayed and converted to a square waveform by a pair of mono-stable circuits 8 1 and 8 2 and used to close a switch 17 gating a tone from a tone generator 18 to the signalling path. The tone is thus returned to the monitoring unit. The square waveform is also differentiated by a transformer 20 and applied via low pass filter 9 to the transmission path to similarly activate the next repeater in the series. At the monitoring unit (Fig. 4), the tones entering via a band-pass filter 26 are amplified at 27 detected at 28 and applied to a level discriminator 29. If the level is adeqate the tones are replaced by pulses from a generator 30 and applied to a counter 32. The counter is monitored by a comparator 33 which operates an alarm 34 if the count does not reach a given level (the number of repeaters) within a given period. In order to reduce noise errors the pulses pass through a switch 31 closed at the appropriate moment by the previously passed pulse fed back via a delay 35. In order to assess the performance of a particular repeater a peak reading voltmeter is connected in at the appropriate moments by a switch 38 controlled by an adjustable comparator 39. At the repeater additional monostables 151, 161 and a switch 5 opened by a marginal relay (not shown) when a fault caution detected from another parameter exists, may be provided. This latter type of fault is a non-disabling fault and to monitor repeaters beyond such a faulty repeater, additional circuitry (Fig. 4), is provided in the monitoring unit to insert dummy response pulses.
Patent ES-360077-A1 (ES)
Title: Electrodialysis process through supply water pretreatment on ion-exchange resins
IPC: C02F1/42
Filed: 1968-11-11
Abstract: A process for the desalination of salt water employing separate sodium and hydrogen form cation exchange resins to soften, to dealkalize and to partially deionize the said water prior to substantial demineralization by electrodialysis. The salt-concentrated waste stream from the electrodialysis cell may be employed to regenerate the sodium-form exchange resin that becomes exhausted during the softening step.
Patent ES-360707-A1 (ES)
Title: Semiconductor devices
IPC: H01L23/66
Filed: 1968-11-26
Abstract: An air-tight container for a semi-conductor device comprises a flat, electrically insulating, thermally conducting support 3, e.g. of beryllium oxide, bonded to a heat-dissipating header 1, e.g. of Cu, which has means such as a threaded stem 13 to permit connection to a further heat sink, discrete local metallized regions such as 6, 8 on the support 3 extending both inside and outside a ceramic ring 17, e.g. of alumina, bonded to the support, and a lid 19 completing the container. Within the container the metallized regions are connected to the electrodes on the semi-conductor, either directly as 6 or through a conductor 14 as 8. Flat terminal conductors 11, 12 are soldered to the respective metallized regions 8, 6 outside the ring 17. The device shown is a Si transistor having two terminals connected to the emitter region. The metallizations 6, 8, of which there are four, comprise Ni- and/or Au-plated Mo/Mn, and the terminal conductors 11, 12 are of Ni- or Au-plated Cu soldered to the metallized regions by Cu/Ag. Au or Au/Sb solder is used to fix the silicon body 18 to the metallized regions. The alumina ring 17 is attached to the support 3 using fused glass 9. The lid 19 may be of alumina or Fe/Co/Ni coated with Au/Sn on its lower face and Au on its upper face. The entire container may be covered with a lacquer or a thermo-hardening cast-on coating. Other devices referred to are diodes, 3-terminal transistors and devices having five or more terminals. Ge and GaAs are also mentioned.
Patent ES-368942-A1 (ES)
Title: Monoazo pigments
IPC: C09B29/32
Filed: 1969-06-30
Abstract: The invention comprises yellow monoazo pigments of the Formula I where X is methoxy or ethoxy, Y is methoxy or ethoxy and Z is chlorine or bromine. The pigments may be prepared by diazotization and coupling.
Patent ES-376392-A1 (ES)
Title: Improvements in or relating to transportable room units
IPC: E04B1/348
Filed: 1970-02-09
Abstract: In a prefabricated room unit 1 of parallelepiped configuration, made of plastics material and assembled from moulded sections 2 joined together at 3, 4 and 5, the room unit is provided with at least one central opening to establish communication with an adjacent unit or to receive a service or utility closure panel. The uppermost panel of the room unit may be provided with a translucent dome or hatch whilst the lower panel thereof may be provided with a floor panel incorporating foundation footings. For numerous minor details concerning materials employed, interconnection of units in superimposed and juxtaposition relationships, attachment of service or utility panels and furniture and fittings carried thereby the Specification and remaining drawings (not shown), should be referred to.
Patent ES-382084-A1 (ES)
Title: Improved antifreeze compositions
IPC: C09K5/20
Filed: 1970-07-23
Abstract: An antifreeze composition comprises a watermiscible alcohol, an alkali metal nitrate, an alkali metal metaborate or tetraborate, an alkanolamine phosphate and one or more heterocyclic benzo-compounds of the formula in which the benzene ring optionally contains at least one substituent alkyl radical and B is a CH, CSH or CSM group or a nitrogen atom, M is an alkali metal atom and A is an oxygen or sulphur atom or NH group with the proviso that when A is O or S, B represents only a CSH or CSM group. The alcohol maybe ethylene glycol or a 50/50 by volume mixture of ethylene glycol and methanol. The nitrate and borate may be of sodium or potassium. The alkanolamine phosphate may be triethanolamine phos phate or tri-iso-propylamine phosphate and may be formed in situ. The benzo-compound may be 2-mercaptobenzoxazole, 2-mercaptobenzthiazole, 4-ethyl-2-mercaptobenzthiazole, 2-mercapto-4,5-dimethyl benzthiazole, sodium 2-mercaptobenzthiazole, potassium 2-mercaptobenzthiazole, 2-mercaptobenzimidazole, benztriazole, 4-methylbenztriazole, 5-methylbenztriazole, benzimidazole, 4-methylbenzimidazole. 5-methylbenzimidazole or 5,6-dimethylbenzimidazole. Optional ingredients include sodium or potassium nitrite, anti-foams (many specified) and dyes.
Patent ES-391167-A1 (ES)
Title: Process for producing zearalenone
IPC: B01D19/04
Filed: 1971-05-04
Abstract: Zearalenone is produced in an agitated, aerated, aqueous fermentation medium containing submergible, zearalenone-producing strains of Gibberella zeae and nutrients including assimilable carbon, nitrogen, and mineral sources.
Patent ES-392705-A1 (ES)
Title: Multi-system circular knitting machine with needle selection device, and method for needle selection
IPC: D04B15/68
Filed: 1971-06-28
Abstract: For mechanical selection of knitting needles and mechanical transfer of recorded pattern data from a pattern tape, selector jacks are marked by changing the physical outline thereof by moving shiftable pins in accordance with the recorded pattern (engagement of a pattern tape with the pins) at a predetermined selection position on the machine, each needle having an associated selector jack which, during machine operation, is passed by a raising cam which senses the pin position, to thus raise the selector jack, or not, and cause needle operation, or not, in accordance with the marking (that is, setting of the pins) of the selector jacks. After knitting, the selector jack markings are all returned to a start position by means of an erase cam, for re-setting of the pattern marking pins.
Patent ES-392810-A1 (ES)
Title: Process for the preparation of carbon tetrachloride and phosgene
IPC: C07C19/04
Filed: 1971-07-02
Abstract: A process for the preparation of a mixture of carbon tetrachloride and phosgene in the absence of a catalyst from A. OXYGEN-CONTAINING CARBON-HYDROGEN COMPOUNDS OR B. OXYGEN-CONTAINING CARBON-HYDROGEN COMPOUNDS, CARBON MONOXIDE, CARBON DIOXIDE, OR WATER, IN ADMIXTURE WITH AROMATIC, CHLORINATED AROMATIC, CHLORINATED ALIPHATIC, OR CHLORINATED CYCLO-ALIPHATIC HYDROCARBONS, WITH CHLORINE AT AN ELEVATED TEMPERATURE AND PRESSURE.
Patent ES-411713-A1 (ES)
Title: Devices for dispensing articles from a stack of articles
IPC: G07F11/16
Filed: 1973-02-16
Abstract: A device for dispensing articles comprises a vertical chute for a stack of articles. The chute is closed from below by a pivotal element which supports the stack. A spring pivotal with the element has a portion extending over the front of the element to engage and support the penultimate article in the stack when the element is pivoted to discharge the lowermost article of the stack. A second spring mounted in the chute at the rear of the element also serves to support the penultimate article.
Patent ES-414387-A1 (ES)
Title: Reversible coater
IPC: B05C1/08
Filed: 1973-05-04
Abstract: A coating mechanism for applying a coating to a traveling web wherein the web is received from a feed direction and the machine is to be used for coating either the upper or lower side of the web. The machine includes a pair of coating rolls forming a horizontal coating nip with the lower roll applying coating to the web, guide rolls for turning and guiding the web from the feed direction to the coating nip, an overhead dryer receiving the web from the nip, a frame supporting the guide rolls and coating rolls and pivotal about a vertical axis 180 DEG between a first position wherein the web is wrapped in one direction around a lower guide roll to coat one surface of the web and a second position wherein the web is wrapped in the other direction around the lower guide roll to coat the opposite surface of the web.
Patent ES-424094-A1 (ES)
Title: Filter press, particularly for dewatering sludge in sewage treatment plants
IPC: B30B9/24
Filed: 1974-03-08
Abstract: Apparatus for dewatering sludge in sewage treatment plants by means of a filter press having belts one at least of which is a filter belt, the sludge being conveyed around a drum between belts both of which pass around the drum the sludge being squeezed between the belts as it is conveyed around the drum by the belts.
Patent ES-427772-A1 (ES)
Title: Aircraft control methods
IPC: B64C29/00
Filed: 1974-06-28
Abstract: Method of apparatus operation are disclosed for advantageously developing fluid-reaction lift control and also attitude control in improved manners in aircraft systems of the type capable of vertical, hovering, transitional, and conventional modes of flight operation. The apparatus consists of an aircraft system having an airframe with right and left primary airfoils and right and left canard airfoils, spaced-apart forward and after rotatable flap members in each airfoil which define a lift ejector diffuser section having a divergence angle, an engine operable at different rotational speeds to produce different corresponding high-energy primary fluid flows and a duct system for selectively distributing the total primary fluid flow from the engine to the lift ejector diffuser sections in each airfoil. The method of operating the control system comprises the steps of: operating the engine at a constant rotational speed and output power to produce a total primary fluid flow distributing the total primary fluid flow to the lift ejector diffuser sections in proportions divided equally between said right and left airfoils and changing the altitude or attitude of the aircraft by rotating the forward and after flap members in opposite directions with respect to each other in each of the airfoils to change the lift ejector divergence angles while the rotational speed, output power and total primary fluid flow of the engine and the proportional distribution of the total primary fluid flow remains constant.
Patent ES-434938-A1 (ES)
Title: Class D amplifier
IPC: H04N3/16
Filed: 1975-02-21
Abstract: A class D amplifier, suitable for use as a vertical deflection amplifier in a television receiver, includes two transistors coupled to function in a push-pull manner. Two diodes are serially coupled with each other in parallel with the output transistors and are poled to conduct forward current in a direction opposite to the forward current of the two transistors. A junction of the two transistors is coupled to a junction of the two diodes and forms an output terminal to which a deflection winding is coupled. A series of pulses at a first frequency, such as the horizontal deflection frequency or a multiple thereof, are pulse width modulated in accordance with the amplitude of a sawtooth waveform at a second frequency, such as the vertical deflection frequency, in a pulse width modulation stage and are coupled to the input terminals of the two transistors. The two transistors are alternately enabled for conduction by the pulse width modulated signals. During the first half of the vertical scan interval when average deflection current is flowing in a first direction through the deflection winding, the first transistor conducts current in the forward direction and the second transistor and its associated diode conduct current in their reverse and forward directions, respectively. During the second half of vertical scan with the average deflection current flowing in the opposite direction, the second transistor conducts current in its forward direction and the first transistor and its associated diode conduct current in their reverse and forward directions, respectively, for minimizing crossover distortion at the middle of the vertical scan interval.