baber/WOPTO huggingface dataset:
Patent ES-266788-A1 (ES)
Title: New derivatives of dialkyl xanthines and the preparation thereof
IPC: A61K31/00
Filed: 1961-04-21
Abstract: The invention comprises compounds of general formula: <FORM:0947495/C2/1> wherein R1 and R2 represent alkyl radicals, R3 represents hydrogen or an alkyl or hydroxyalkyl radical, R4 represents a hydroxyalkyl or arylhydroxyalkyl radical, and X represents an alkylene group their acid addition salts and their preparation by reacting an 7-halogenoalkyl-8-benzyl-1, 3-dialkylxanthine with an amine of formula HNR3R4. Pharmaceutical compositions of the above xanthines for oral (tablets, capsules, liquids), parenteral (solutions) and rectal (suppositories) administration are mentioned. The compounds stimulate the central nervous system and have a spasmolytic action on muscles and a positive inotropic action on the heart. Specification 947,494 is referred to.
Patent ES-273847-A1 (ES)
Title: Apparatus for the purification of waste water
IPC: B01D21/34
Filed: 1962-01-18
Abstract: <PICT:0941857/C1/1> The bottom of a sewage treatment tank is covered by aeration plates to which are supplied with air, via channel h and conduit i, which escapes through holes e and f into the tube d to give an effective aeration rate. The tubes may be made of a plastic material and may be detachable. An activated sludge process which can be used with the aeration device by means of baffles and flaps which divide the tank into treatment zones is illustrated in Figs. 4 and 5 (not shown).
Patent ES-337849-A1 (ES)
Title: Electrical connector
IPC: H01R13/28
Filed: 1967-03-10
Abstract: An electrical connector comprises a sheet metal contact portion 1, V-shaped in crosssection, having a slot 2 providing a pair of flat prongs 3 with chamfered edges (4) which may be parallel or may converge towards mouth 6. The contact portion may mate with a similar one (Fig. 3, not shown) or with a flat twopronged contact portion (Fig. 5, not shown) and may be formed integral with a connecting member (1, Fig. 3, not shown) for engaging the edge of a printed circuit board. In another embodiment (Fig. 6, not shown) prongs (30) with bent out end extensions (40) providing a mouth (60), are joined by twisted leg portions (80) to a flat plate (70), the planes of the prongs (30) defining an angle of 90 degrees. On mating with a similar contact portion, (Fig. 8, not shown) each prong (30) deflects by 45 degrees relative, to its initial plane. A plurality of mating pairs of connectors may be mounted in a pair of insulating blocks.
Patent ES-339782-A1 (ES)
Title: Process and Apparatus for Measurement of Crystallizable Material.
IPC: G01N33/03
Filed: 1967-04-25
Abstract: A heat exchanger comprises a thin-walled copper casing 32 containing a thick-walled hollow copper cylinder 33 in which two independent helical channels 34a, 34b have been cut to provide passages for two heat exchanging liquids. Nylon connecting tubes 31 minimize heat conduction between the heat exchanger and the external piping.
Patent ES-346729-A1 (ES)
Title: Fuel injection control system
IPC: F02D41/12
Filed: 1967-11-03
Abstract: The duration of the period in each cycle during which the valves of the fuel injection system of an I. C. engine are open is determined by a transistor circuit in accordance with the degree of vacuum in the inlet manifold, and is provided with a fuel inhibition facility when the acceleration pedal is not depressed, the engine temperature is above a preset minimum and the engine speed is above a preset minimum idling value. Normally the solenoids 13 of the fuel injection valves are energized by the amplified pulses from monostable multi-vibrator 18, which receives input pulses from engine driven contact breaker 20, giving two pulses per revolution, and delivers synchronous pulses whose duration is controlled by the pressure in the inlet manifold 12. These pulses are fed through synchronous change-over switch 24, alternately to transistor 27, energizing the left hand solenoids 13, and to transistor 28, energizing the right hand solenoids 13. The base of transistors 27, 28 is connected to a bi-stable multi-vibrator 38 which inhibits energization of solenoids 13 when accelerator pedal 87 is not depressed and associated switch 86 is closed and when the engine temperature, as used by a bimetallic switch 85, is above a minimum and switch 85 is closed. When either switch is open, diode 70 conducts, transistor 46 conducts, its collector is earthed and fuel injection proceeds normally as above. When both switches are closed diode 70 is blocked, and the operation of multi-vibrator 38 is dependent on the frequency of the pulses from contact breaker 20 fed in via capacitor 59 and resistor 62. If the frequency is lower than that of normal idling speed, components 52-59 pass the pulses to block transistor 45, transistor 46 conducts and fuel injection proceeds normally. If the frequency is above that of idling speed components 62-69 pass the pulses to block transistor 46 and fuel injection is inhibited.
Patent ES-359301-A1 (ES)
Title: Expansible drum for the assembly of certain inextensible tire components
IPC: B29D30/00
Filed: 1968-10-18
Abstract: An expansible drum for the assembly of tyre tread reinforcement belts and tread stock comprises axially extending segments 62, the radially outer surfaces 64 of which are substantially flat, and have secured thereto strips of elastomeric material 70, each including a plurality of radially outwardly extending projections 74, which act as a guide for the location of the tyre components and prevent their axial movement.
Patent ES-364752-A1 (ES)
Title: Method and apparatus for the continuous forming, galvanizing and coloring of tubing
IPC: F16L58/00
Filed: 1969-03-13
Abstract: is applied, preferably by the electrostatic spraying technique. After baking 222 to harden the coating the tube is cooled 231 and passes into driving rolls 224, 226. The rolls are preferably metal rolls having hard rubber or plastic layers which engage the tubing to avoid marring the coating. After straightening 242 the tubing is cut to lengths by a flying shear 244.
Patent ES-372272-A1 (ES)
Title: Method and compositions for preservation of beverages
IPC: A23L2/44
Filed: 1969-10-07
Abstract: Beverages are preserved by incorporating therein at least two compounds each of which is taken from a different one of the groups consisting of (1) an alkyl ester of gallic acid wherein the alkyl group contains 3 to 12 carbon atoms, (2) an alkyl ester of parahydroxy-benzoic acid wherein the alkyl group contains 1 to 8 carbon atoms and (3) sorbic acid or a salt thereof. The quantities of the preservatives are (la) from 1 to 30 p.p.m. when the alkyl group of the alkyl gallate contains from 3 to 6 carbon atoms, (1b) from 2 to 6 p.p.m. when the alkyl group in the alkyl gallate contains 7 to 12 carbon atoms, (2a) from 10 to 50 p.p.m. when the alkyl group of the alkyl p-hydroxybenzoate contains 1 to 6 carbon atoms, (2b) from 2 to 6 p.p.m. when the alkyl group of the alkyl p-hydroxybenzoate contains 7 or 8 carbon atoms and (3) from 10 to 150 p.p.m. of sorbic acid or its salt. A suitable composition for preserving beverages comprises 1 part by weight of octyl gallate, 1 part by weight of heptyl p-hydroxybenzoate, and 5 parts each of propyl p-hydroxybenzoate and sorbic acid or a salt thereof.
Patent ES-377065-A1 (ES)
Title: Bearing with controlled friction
IPC: D06F37/24
Filed: 1970-02-19
Abstract: In a bearing assembly a first bearing surface has a lining comprising P.T.F.E. and a second bearing surfaces mates with the lining and is suitably roughened so as to become coated with P.T.F.E. from said lining. The latter may contain from 70 to 80 per cent of P.T.F.E. 20 to 30 per cent of carbon and 1 per cent of a compatible colour identifier. The first bearing surface may be in the form of a truncated hemisphere and the second bearing surface may have a hemispherical shape. A resilient pad may be positioned between the first bearing surface and the lining. The bearing assembly may be mounted in a washing machine and may comprise a truncated hemisphericalshaped position 31 of a base 8, a resilient pad 32, a lining 33 of 'P.T.F.E. &c., a reinforcement plate 34, and a hemispherical surface which is formed in an upper suspension housing 20 of the washing machine and which mates with the P.T.F.E. &c liner 33.
Patent ES-392907-A1 (ES)
Title: Dehalogenation process
IPC: C01G43/01
Filed: 1971-07-05
Abstract: Process for dehalogenation of particulate compositions containing metallic oxyhalides to produce metallic oxides by contacting the compositions in a heated atmosphere containing vaporized alcohol. A second gas including inert gases and active dehalogenating gases can be mixed with the vaporized alcohol. A preferred practice has agitation of the particulate compositions containing metallic oxyhalides during the dehalogenation process. The metallic oxide produced by dehalogenation can be freed from any hydrocarbon residues where desired by a subsequent heating step in a reducing atmosphere. The halide ions from the dehalogenation can be recovered as an acid by passing the dehalogenation atmosphere through water.
Patent ES-397759-A1 (ES)
Title: Vibratory device
IPC: H02K7/06
Filed: 1971-12-07
Abstract: A vibratory compactor has a vibration-producing drive which is mounted in an elongated tubular housing. The housing has spaced end walls one of which is of one piece with its peripheral wall, and the peripheral wall increases in thickness towards the one end wall. A cap is provided which can be releasably connected with the one end wall.
Patent ES-399267-A1 (ES)
Title: Antibiotics
IPC: C07C259/02
Filed: 1972-01-28
Abstract: A procedure for the preparation of cephalosporin compounds of the formula <br/> <br/> ** (See formula) ** <br/> <br/> (where R is a hydrogen atom or an organic group, Ra is hydrogen or an acyl group, B is > S or > S > 0, and Z is a group in which 1 or 2 carbon atoms bond the core sulfur atom and the carbon atom that carries the carboxyl group) and derivatives thereof, which comprises condensing a compound of the formula <br/> <br/> ** (See formula) ** <br/> <br/> (where B and Z have the meanings defined above and R1 is hydrogen or a carboxyl blocking group) with an acylating agent corresponding to acid <br/> <br/> ** (See formula) ** <br/> <br/> (where R and Ra have the meanings defined above) or with an acylating agent corresponding to an acid that is a precursor of acid (VI) and converting the resulting precursor acyl group to the desired acyl group, after which, if necessary or if desired in each case, is carried out when Any of the following reactions: <br/> <br/> (i) conversion of a precursor from the group <br/> <br/> (see formula) desired in said group, (ii) conversion of an Δ2 isomer at the desired Δ3 isomer, (iii) removal of any carboxyl blocking groups, (iv) reduction of a compound where Z is > S → 0 to form the desired compound Z = S, and (v) recovery of the desired compound of formula (i) in the form without or anti or as a mixture containing 75% of one of such isomers.
Patent ES-400068-A1 (ES)
Title: Cell for sequential circuits and circuits made with such cells
IPC: H03K19/09
Filed: 1972-02-22
Abstract: A system for asynchronous automation control, comprising a plurality of phase signal generating circuits interconnected with action signal generating circuits wherein the action signal generating circuits each comprise a first OR gate having an input connected to at least one output of a phase signal generating circuit, a first AND gate having an input connected to the first OR gate output and a further input normally receiving the logical complements of disabling signals, a second OR gate having an input connected to the first AND gate output and a further input for receiving a hand control signal, and a second AND gate having an input connected to the second OR gate output, a further input normally receiving the logical complement of a locking signal, and an output connected to a further input of the first OR gate.
Patent ES-412808-A1 (ES)
Title: Tube nest for heat exchangers, and modular elements for said nest consisting of thermoplastic tubes, and process for manufacturing the modular elements and the tube nests
IPC: B21D53/06
Filed: 1973-03-17
Abstract: A modular element for heat exchangers with thermoplastic tubes consisting of a plurality of tubes connected to one another by spacers located at intervals allowing the mutual tape-like positioning of the tubes, a tube nest consisting of a plurality of such modular elements, and a process for making the modular elements and the tube nests.
Patent ES-415186-A1 (ES)
Title: Process for making cryolite
IPC: C01F7/54
Filed: 1973-05-25
Abstract: Cryolite is made by placing an aqueous aluminum fluoride solution in a reaction vessel, then slowly and simultaneously adding an aqueous sodium salt solution and an aqueous ammonium fluoride solution while vigorously mixing the mass and adjusting the Na:F mol ratio in the added solutions to the range between 1:1 and 1.5:1 and carrying out the reaction at a temperature between 10 and 90 DEG C whereupon the precipitated cryolite is separated from the mass, washed and dried.
Patent ES-420833-A1 (ES)
Title: Heald mounting for shaft frames of looms
IPC: D03C9/06
Filed: 1973-11-24
Abstract: A loom has a shaft frame, for shedding, including heald laths and lateral frame supports, and shaft staves are mounted in the shaft frame and support healds guiding the warp threads. Each shaft stave carries a heald mounting head having a rhombus cross-section with one diagonal perpendicular to the working plane of the loom and the other diagonal parallel to the working plane. Each heald is an elongated element formed, intermediate its ends, with an eye for passage of a warp thread therethrough. The opposite ends of each heald are forked to form a pair of gripping jaws having releasable conforming snap engagement with the head of a shaft stave. Thereby, the healds may be readily removed and replaced in the shaft frame.
Patent ES-425409-A1 (ES)
Title: Auxiliary wheel
IPC: B60B11/10
Filed: 1974-04-17
Abstract: An auxiliary wheel for use in conjunction with a conventional pneumatic tired wheel of a vehicle when the pneumatic tire carried by the rim of the conventional wheel becomes inoperative. The auxiliary wheel has a rim member with a hard rubber tire on the outer periphery thereof and is pivotally attached to a coupling member which, in turn, is attachable to the rim of the conventional wheel. The auxiliary wheel is attached to the vehicle wheel in such a manner that upon a limited rotational movement of wheel the rim member will be moved to a position concentric with and parallel to the wheel and elevate the same to permit the vehicle to be driven without removing the inoperative tire.
Patent ES-434649-A1 (ES)
Title: Gas-dynamic pressure-wave machine
IPC: F02B33/42
Filed: 1975-02-12
Abstract: A gas-dynamic pressure-wave machine comprises essentially a celled rotor operating within a stationary casing that includes a cylindrical middle portion co-extensive in length with the rotor and two side casing portions located respectively adjacent opposite ends of the rotor for entrance and discharge of a hot high-pressure gas and a cold gas respectively which flow through the cells, some of the energy in the hot high-pressure gas being imparted to the cold gas so as to cause the latter to be compressed as a result of the pressure-wave process which takes place within the cells. The rotor becomes heated by the hot gas to an operating temperature between those of the cold gas, to be compressed, e.g. air and the hot gas, e.g. engine exhaust gas causing it to expand in an axial direction. In order to prevent any rubbing action between the surfaces of the two side casing portions and the opposite ends of the rotor and yet maintain a desirable small operating axial clearance therebetween, the middle portion of the casing, for each duty point of the machine, is heated approximately simultaneously with the rotor to a temperature which is at least approximately proportional to the average rotor temperature at that duty point. The required heating of the middle portion of the casing is accomplished by passing some of the hot gas through a channel formed between the periphery of the rotor and the adjacent inner surface of the middle casing portion and/or through a channel formed between the outer surface of the middle casing portion and a jacket surrounding the latter.
Patent ES-435201-A1 (ES)
Title: Antistatic polyamide compositions their use and processes for their production
IPC: C07D295/185
Filed: 1975-02-28
Abstract: Polyamide compositions which contain polyalkylene ethers having secondary urethane groups, of the formula < IMAGE > in which m is a number from 1 to 6, while n is a number of at least 3, R is an m-functional, straight-chain, cyclic or branched, saturated or unsaturated alkyl radical which may optionally also contain heteroatoms, R is furthermore an aralkyl radical, an optionally alkyl-substituted, m-functional aromatic radical, R' is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a cycloalkyl, aryl, alkaryl or aralkyl group, and Y is the < IMAGE > group or a hydrogen atom, R'' and R''', independently of one another, are alkyl groups having 1 to 30 carbon atoms, cycloalkyl, aryl, aralkyl or alkaryl groups, have excellent antistatic properties. These compositions are particularly suitable for the production of shaped articles which are permanently antistatic, including, preferably, carpets.
Patent ES-438366-A1 (ES)
Title: Integrated urea-ammonia process
IPC: C07C273/10
Filed: 1975-05-30
Abstract: Improved integrated process for simultaneous synthesis of ammonia and urea. Improved yields of urea in purified form are obtained by a simple process which curtails the addition of external water to the process. Two carbon dioxide absorbers are employed. A concentrated ammonium carbonate solution is utilized in the primary carbon dioxide absorber. A secondary carbon dioxide absorber is downstream in series to the first or primary carbon dioxide absorber. An ammonical solution of ammonium carbonate is utilized in the secondary carbon dioxide absorber.
Patent ES-439844-A1 (ES)
Title: Textile fluid bulking process
IPC: D02G1/12
Filed: 1975-07-30
Abstract: A bulked multifilament yarn having filaments of polymeric material has alternating points of maximum polymeric density and minimum polymeric density occurring along the length of each filament with a maximum spacing of 10 meters. The yarn may have a crimped structure in which the crimps are of undulating form with more than 50% of the filaments having maximum amplitudes of undulation less than the diameter of the yarn and more than 50% of each filament lies on one side of a diametral plane of the yarn particular to that filament. A process of producing the yarn includes the steps of jet bulking yarn and projecting it against one end of an elongated package during which the pressure prevailing at said one end of the package fluctuates. The pressure varies between a maximum value and a minimum value with a frequency related to the rate of feed of the yarn.
Patent ES-441169-A1 (ES)
Title: Copier with means for handling components of form letters, and the like
IPC: G03B27/62
Filed: 1975-09-22
Abstract: The copier has a transparent support upon which originals to be copied are laid with their image-bearing sides face down. The image-bearing sides are illuminated and reproductions are made of the illuminated images. An arrangement for use in the reproduction of printed forms, form letters, and the like, includes first and second holding devices located adjacent the transparent support. The first holding device holds two lower originals which serve as masks and are spaced apart to form an intermediate slit. The second holding device holds an upper original located above the lower originals with a portion of the upper original showing through the slit and being unblocked for illumination. At least one holding device is mounted movable relative to the other in the direction of the length of the transparent support. By effecting such relative movement, different lines or portions of an image on the upper original can be unblocked by the mask for illumination and reproduction.
Patent ES-442315-A1 (ES)
Title: Photoresist stripper systems
IPC: C11D7/50
Filed: 1975-11-04
Abstract: This relates to a method and solution for removing exposed photopolymer film resist from a substrate. The substrate having the photoresist thereon is contacted with a solution consisting essentially of acid selected from the group consisting of the first three carboxylic acids and their halogenated derivatives, alcohol selected from the group consisting of the simple alcohols containing one to four carbon atoms per molecule and their halogenated derivatives, and water.
Patent ES-443424-A1 (ES)
Title: Terminal unit for the outlet of conditioned air in a centralized conditioning system
IPC: F24F11/76
Filed: 1975-12-11
Abstract: A variable flow, modular-type terminal unit for conditioning rooms in a centralized conditioning system is provided with means for controlling the conditioned air flow arranged within the outlet diffuser in order to vary the cross-section area of the outlet ports, being operated by a thermostatic device. The thermostatic device, directly fed with conditioned air operates such controlling means through a control lever, a control rod displaceable in the direction of its length and a triangular lever hinged at one vertex for rotation in a plane parallel to that where the control lever is pivotedly mounted. The operating member of the thermostatic device engages the control lever through the end of a threaded rod adjustable for setting the operation temperature. Other two adjusting screws are provided for hand control of the maximum and minimum cross-section opening of the diffuser outlet ports, by limiting the control lever rotation in two opposite directions.
Patent ES-443443-A1 (ES)
Title: Nitrogen dioxide regenerative fuel cell
IPC: H01M8/18
Filed: 1975-12-12
Abstract: A fuel cell is disclosed in which the cathode is a gaseous diffusion fuel cell electrode operating with an acid electrolyte and nitrogen dioxide (NO2) alone or with oxygen. The cathode half cell reaction produces nitric oxide (NO) and water and the NO2 is externally regenerated by reaction of NO with oxygen to produce the nitrogen dioxide for reuse in the cell. When both NO2 and oxygen are used, oxidation of the NO formed back to the NO2 occurs within the cathode itself so it is possible to get more than 100% utilization of the NO2 in the fuel cell.
Patent ES-445703-A1 (ES)
Title: Recovery of lead, zinc and iron sulfide
IPC: C22B13/00
Filed: 1976-03-02
Abstract: Lead is recovered from lead sulfide concentrates or mixed lead-zinc concentrates containing iron sulfide by forming a slurry of such concentrates in an aqueous medium containing ammonium sulfate and free ammonia, and introducing such slurry into a closed reaction vessel at a pressure not exceeding 30 psig. Oxygen also is introduced into such vessel to establish therein a partial oxygen pressure of at least a few psi, while vigorously agitating the slurry. The lead sulfide content of the concentrates thereby is converted to the form of substantially water-insoluble oxidic lead compounds, while any zinc sulfide present is dissolved. The slurry then is withdrawn from the reaction vessel and the insoluble residue is separated from the aqueous solution. The latter is treated for recovery of its zinc and ammonia content, and the residue is subjected to a froth flotation operation to form a concentrate containing substantially all the iron sulfide and a tailing containing the oxidic lead compounds. Lead is recovered from such tailing.