baber/WOPTO huggingface dataset:
Patent ES-252792-A1 (ES)
Title: Improvements in or relating to the preparation of semiconductors
IPC: C01B19/00
Filed: 1959-10-21
Abstract: A semiconductor of general formula X2Y3 where X is Bi, Sb or As and Y is Te, Se or S and in particular bismuth and antimony tellurides and bismuth selenide is prepared by mixing powders of the relevant elements in stoichiometric proportions and subjecting the mixture to heat treatment in an inert atmosphere below the melting point of the desired semiconductor compound and preferably above the lower of the respective melting points of the two constituent elements. Heating at 550-575 DEG C. is generally necessary. The resulting porous mass is then powdered, and semiconductor bodies may be formed by sintering such powder. If more than one of the elements of either X or Y are to be employed they should preferably initially be intimately mixed, melted, solidified and powdered. Donor impurities such as iodine, bromine, chlorine, copper, silver and lithium or acceptor impurities such as cadmium and lead may be introduced into the product by incorporating them in the powdered starting material. According to the Examples (1) powdered bismuth and tellurium in 2/3 atomic ratio were heated in a sealed silica container which had been evacuated to 10-5 mm. Hg., to a temperature of 550-575 DEG C. The bismuth telluride product was readily crushable. (2) Bismuth and antimony in a 1/3 ratio were melted at 700 DEG C., solidified, crushed and then placed in an evacuated silica container with powdered tellurium whereby a final product of formula Bi0.5Sb1.5Te3 is produced. (3) As in (2) above except that the bismuth and antimony were in equimolecular amount and the final product had a formula BiSbTe3. (4) Tellurium and selenium in 2/1 ratio were melted, solidified, and powdered: bismuth was melted with 0.8% by weight of copper, solidified and powdered the two powders were then heated in a silica container to give bismuth selenotelluride of formula Bi2Te2Se. Semiconductor bodies may be formed from the powders by hot pressing the powder at 300 DEG C. and 5,000 kilograms per square centimetre. The body so formed may be heated at 250-400 DEG C. for up to ten days in an evacuated container. The products of Examples (1), (3) and (4) were N-type, and that of Example 2 was P-type.
Patent ES-256717-A1 (ES)
Title: Improvements in or relating to cellulosic material
IPC: D06M10/00
Filed: 1960-03-22
Abstract: An activated but physically substantially undergraded cellulosic textile material capable of taking part in a graft reaction with a graftable chemical substance is produced by subjecting the material to suitable ionizing electromagnetic radiation such as X-rays or gamma rays at a dosage of from 103 to 107 Roentgen. Substances which may be grafted on to the activated material include compounds incapable of polymerization such as quaternary ammonium compounds, phenols, silicones, dyes, or organo-metallic compounds such as tributyl tin oxide, phenyl mercury metaborate or tributyl tin acetate, polymers such as polyethylene, a polymethacrylate or polyvinyl chloride, softeners such as the triethanolamine salt of oleylsarcoside, cetyldimethylbenzyl ammonium chloride, stearyl triethanolamine and stearyl-ethylenediamine formate, or polymerizable monomers such as an acrylate or methacrylate, acrylamide, styrene, vinyl acetate, vinyl chloride, vinylidene chloride, ethylene, butadiene or isoprene or mixtures thereof. Polymerization of the monomer may be affected with the aid of a redox system which may be applied simultaneously with the monomer or previously, polymerization being assisted by heating. Prior to irradiation the textile material may be treated with a chemical substance such as an acrylic, methacrylic, crotonic or cinnamic ester, an allyl ether, acrylonitrile, an ethylene imine compound, or an o-, m- or p-substituted benzene carboxylic acid or alcohol or a derivative thereof such as p-isopropyl benzoyl chloride. The cellulosic material may be protected against excessive decomposition by irradiation by treatment with cysteine, cystine, pyrogeallol or methane sulphonyl chloride prior to irradiation.
Patent ES-258570-A1 (ES)
Title: Improvements in and relating to the production of 2-acylphenothiazines
IPC: A61K31/00
Filed: 1960-06-02
Abstract: 2-Acylphenothiazines of the general formula: <FORM:0900755/IV (b)/1> in which A is an alkylene radical containing 2-5 carbon atoms, R is an alkyl radical containing 1-4 carbon atoms and R1 is an hydroxy substituted alkyl radical containing 1-4 carbon atoms are prepared by reacting a phenothiazine of the general formula: <FORM:0900755/IV (b)/2> either with an alkylene halide or haloalkyl aryl sulphonate and condensing the 2 2-acyl-10-(haloalkyl)-phenothiazine so produced with an N-hydroxyalkyl piperazine, or with piperazine and reacting the 2-acyl-10-(piperazinylalkyl) phenothiazine with an alkylene halohydrin, an alkylene oxide or an alkylene carbonate or reacting the above 2-acylphenothiazine with either an N-haloalkylpiperazine and reacting the resulting 2-acyl-10-(alkylpiperazinyl)-pheno-thiazine with an alkylene halohydrin, alkylene oxide or alkylene carbonate, or with an N-haloalkyl-N1-hydroxyalkylpiperazine, the condensation involving the 10-position of the 2-acylphenothiazine in each of the aforesaid reactions taking place in the presence of sodium hydride dissolved in dimethyl formamide or dimethyl acetamide. The products may be converted to acid addition salts. Tranquillising compositions comprise the 2-acylphenothiazines or p acid addition salts thereof produced by the process of the invention and an inert carrier. Salts specified include ascorbates and nicotinates. Reference has been directed by the Comptroller to Specification 819,886
Patent ES-321886-A1 (ES)
Title: Liquid fuel supply systems for internal combustion engines
IPC: F02M45/04
Filed: 1966-01-11
Abstract: Movement of a piston 26 by a fuel pulse from a pump 15 first forces fuel for pilot injection through a restriction 24 and then opens orifices 28 leading to grooves 29 by-passing the restriction 24, through which grooves the main injection flows to the injector. The piston 26 slides in a bore 22 in a spring-loaded valve member 20 which lifts off its seat at the end of each injection period to reduce the pressure in the injector delivery passage. In Fig. 2 (not shown), the piston 26 is provided with a restricted bore 30 therethrough which facilitates return of the piston at the end of injection.
Patent ES-337694-A1 (ES)
Title: Method and Apparatus for the Continuous Preparation of Plastics Material Mixtures
IPC: B29C48/57
Filed: 1967-03-07
Abstract: Brittle fibre strands 8 (e.g. of glass fibre) are fed into a pugmill having a pair of rotatable mixing members 2 by which the strands are broken and distributed evenly into thermoplastic material the components of which are metered at 5 the length of the broken strands is said to be determined by the distance of their point of introduction 7c from the outlet 6. As shown the screw housing 1 is made in sections and has a longitudinal opening 11 along which the fibre inlet 10 can be adjusted, the remainder of the opening 11 being closed by members 9'. Alternatively there may be a plurality of fibre inlet openings, the ones not in use being closed by a cover. The material may be extruded as strands, slabs or granules.
Patent ES-337890-A1 (ES)
Title: Process for the production of a gas with a variable output by controlling the degree of refrigeration in the liquefaction of stored gas
IPC: F25J3/04
Filed: 1967-03-11
Abstract: In a process for liquefying varying amounts of a constant supply of main gas, e.g. oxygen produced by a conventional air separating plant 2 by indirect heat exchange at 11 with an auxiliary gas, e.g. nitrogen in a closed cycle comprising a compressor 17 delivering through lines 18, 19 to an expansion turbine 20 which in turn discharges through the exchanger 11 in which the gaseous oxygen is liquefied and a return line 23 to the compressor 17, the degree of cooling of the exchanger 11 is varied in accordance with changes in demand for liquid oxygen by varying the pressure and hence the amount of nitrogen fed to the turbine but maintaining constant the ratio between the feed and exhaust pressures of the turbine. To reduce the cooling of exchanger 11, a portion of the compressed nitrogen is bled through a valve 26 to a storage vessel 24, and since the exhaust pressure of the turbine 26 is lowered the inlet pressure of the compressor 17 is correspondingly lowered. To increase the production of cold in exchanger 11, nitrogen gas is discharged from vessel 24 through a valve 25 to the inlet of compressor 17 with valve 26 closed, resulting in increase in inlet pressure to the turbine 20. Valves 25, 26 may be regulated manually or automatically in accordance with the setting of a valve 8 in a branch line 7 of the main gaseous oxygen supply line 6 by means of a control-unit 42 responsive to pressure in line 6. Make-up for the closed nitrogen cycle is obtained from the nitrogen product line 4 of the apparatus 2. To meet a peak demand for gaseous oxygen, previously liquefied oxygen is withdrawn from a storage vessel 16, vaporized at 33 and fed to line 6.
Patent ES-338087-A1 (ES)
Title: Centrifugal casting machine
IPC: B22D13/02
Filed: 1967-03-03
Abstract: In the centrifugal casting of pipes T in a mould 1 supported on a carriage C and movable towards and away from a pouring trough B, the pipe T is extracted from the mould 1 by an automatically operated extractor E carrying tongs P and movable towards and away from the mould carriage C, the control device for automatically operating the extractor E including photo-electric cells 8 and 9 actuated by infra-red radiation from the molten and solidifying metal of the pipe T. Cell 8 operates when the socket end of the pipe is extracted and cell 9 is initially retracted by a spring biased jack 12, or alternatively covered by a retractable screen, during the pouring operation and then positioned or uncovered during the solidifying stage to " view " the smooth end of the pipe. During normal extraction the cell 9 senses the extraction of the smooth end of the pipe but, in the case of faulty extraction or fracturing of the pipe, cell 9 in conjunction with cell 8 acts through the control device to either reverse the movement of the extractor E to make another attempt at an extraction or the extracting operation of the machine is stopped to enable the mould to be manually cleared. The control device also comprises a contactor 14 operated when the mould carriage C reaches the end of its travel, and two contactors 15 and Cc spaced apart at one end of the track on which the extractor E moves. The extractor E is moved by a jack V. The control circuit of the control device (Fig. 4, not shown) includes a starting push-button (20), a master relay (RA) and various switches operated by the contactors 15 and Cc to control the direction of movement of the extractor E. The contactors may also be used to change the speed of the extractor E. During extraction the pipe T is supported on retractable supports 7.
Patent ES-340103-A1 (ES)
Title: Improvements to fluid pressure regulators
IPC: A47C31/02
Filed: 1967-05-03
Abstract: Air is supplied to a metrology unit from a source 26 via restrictions 27, 29 and a constant pressure chamber 2 having a vent 10 controlled by a closure surface 8. The latter is part of a hollow rod 7 interconnecting the end walls of resilient bellows 5, 6. The bellows are liquid filled and their interiors communicate through annular port 25 or through a variable orifice. Chamber 2 communicates through passage 22 and restriction 23 in rod 7 with a further chamber 3 having a vent 21 controlled by a valve 14 abutting the head of rod 7. The pressure in chamber 3 compensates for the resilience of the bellows. The bellows can alternatively be spring-loaded to achieve the required resilience. The system could also be used to create a controlled vacuum in chamber 2 when source 26 is a vacuum source. Restriction 23 may be adjustable in response to bellows movement.
Patent ES-340135-A1 (ES)
Title: Connecting horizontal panels and vertical panels in prefabricated buildings
IPC: E04B1/04
Filed: 1967-05-03
Abstract: A precast floor unit 1 or 2 comprising substantially parallel reinforced beams 3 (Fig. 1, not shown) is connected along an edge normal to the beams to the junction zone between a pair of superposed vertical panels 10, 14, said edge comprising a projection 7 extending therealong which is interrupted at the ends of the beams, the projection serving to support the floor unit on the underlying panel 10 of the two vertical panels whilst in turn providing support for the superposed vertical panel 14, the upper edge of the underlying panel presenting a longitudinal recess 11 which defines a part of the joint zone into which zone extends the reinforcements projecting from the ends of the beams and from the upper and lower ends of the vertical panels. Concrete filling can be introduced into the joint zone through openings formed either at 16 at positions of the beams along the lower edge of the superposed vertical panel 14, or at 18, at similar positions along the edge of the floor unit. The floor units and panels for several storeys of a multi-storey building may be so arranged before final binding by said filling.
Patent ES-347139-A1 (ES)
Title: Method of assembly utilizing a composite solid connector
IPC: B65G17/42
Filed: 1967-11-14
Abstract: A method of making conveyer chain assemblies of kind comprising two parallel runs of chain lengths C, C, adjacent lengths being joined by connectors 2 and scraper bars S extending between the runs and secured to the connectors 2, comprising passing the end links of adjacent chain lengths along leg portions 5, 5 of each connector 2 and thence on to a link portion 3 and then uniting the leg portions by a bridge component 8. The latter forms a stress path in the connector 2 which is independent of the connection 6, 7 of the scraper bar. The component 8 may be provided by two separate wedge-shaped members which are welded into position. Alternatively the component 8 may be in the form of a rivet (15) (Fig. 4, not shown).
Patent ES-348216-A1 (ES)
Title: O-methyl-o-(2,2 dichloro-vinyl) phosphoric acid ester monochloride and method of preparation
IPC: C07F9/564
Filed: 1967-12-12
Abstract: Insecticidal and acaricidal compositions comprise a compound of the formula where R 1 and R 2 are each hydrogen or an optionally substituted alkyl, alkenyl, cycloalkyl, aralkyl, or aryl radical, or R 1 and R 2 together with the nitrogen atom form a heterocyclic ring which may be interrupted by further hetero atoms, in admixture with a solid diluent or carrier or a liquid diluent or carrier containing a surface-active agent. The compositions may be formulated as solutions, emulsions, suspensions, powders, pastes or granulates and may be applied by watering, spraying, atomizing, gasification, fumigation, scattering and dusting. Other active compounds may be present.
Patent ES-352302-A1 (ES)
Title: Process for the manufacture of porous vitreous shapes
IPC: C03C11/00
Filed: 1968-04-02
Abstract: Porous vitreous shapes are made by dissolving pulverulent material of a silicate and/or oxide nature in an aqueous solution of an alkali metal silicate, the proportion of the material being within the range of from 0.02 to 0.8 part by weight per 1 part by weight of alkali metal silicate, assisting solution of the pulverulent material either (a) by subjecting it to wet grinding in the solution, or (b) by blowing the pulverulent material on to the surface of the solution moving at such a velocity as to prevent or greatly reduce the piling up of the particles on the surface, or by using methods (a) and (b) simultaneously, drying the resulting product to drive off free water, disintegrating the dried product to a particle size within the range of from 0.001 to 10 millimetres, if it does not already have a particle size within that range, heating the resulting product in a shaped condition at a temperature within the range of from 650 to 1000 C. to obtain a foamed product, and then cooling. Method (b) may be carried out by impelling the solution by means of a propeller stirrer situated within an open-ended passage below the level of the solution in the vessel so as to cause the solution and solid material suspended therein to circulate continuously in one direction through the passage and in the reverse direction in a space outside the passage. The pulverulent material may comprise one or more silicate and/or one or metal oxides such as zinc oxide, glass powder, aluminium oxide feldspar and lead dioxide. Calcium metaborate may be added. In an example, 30 litres of water glass is diluted into 30 litres of water and 50 grams sugar, 125 gms. zinc sulphate and 1000 gms. borax are dissolved. A mixture of 1-5 kg. of zinc oxide 1À2 kg. of calcium metaborate, 0À2 kg. of aluminium oxide 1.5 kg. of feldspar and 2À5 kg. of cullet powder is blown on to the rapidly moving surface of the solution pumped through a grinding mill or refiner. After evaporation and drying, the product is foamed in moulds or on a travelling band.
Patent ES-356486-A1 (ES)
Title: Purification of Propylene Oxide
IPC: C07D301/32
Filed: 1969-10-16
Abstract: A process for the removal of methyl formate from propylene oxide comprises introducing into a vessel, a propylene oxide, contaminated with methyl formate, and an aqueous slurry of calcium hydroxide in an amount at least stoichiometrically equivalent to the methyl formate, establishing temperature and pressure conditions within the vessel to produce a reaction between the methyl formate and the calcium hydroxide and removing propylene oxide substantially free of methyl formate from the vessel. The process may be carried out batch-wise or continuously, the latter comprising introducing the contaminated propylene oxide continuously into a column and simultaneously introducing an aqueous slurry of calcium hydroxide into the column at a point above the point at which the propylene oxide is introduced and continuously removing the propylene oxide substantially free of methyl formate overhead and the aqueous slurry containing calcium formate as bottoms, the column being operated at a temperature above the boiling point of propylene oxide but below 100 C., the feed rates of propylene oxide and aqueous slurry being such that the amount of calcium hydroxide or oxide is at least stoichiometrically equivalent to the methyl formate and the temperature and feed rates being correlated to minimize the amount of propylene oxide in the bottoms.
Patent ES-365524-A1 (ES)
Title: Improved electric switch ceramic contact supporting member
IPC: H01H1/36
Filed: 1969-04-01
Abstract: A dry electrically insulating film lubricant may be (i) a colloidal tetrafluoroethylene resin combined with a phenolic or epoxy resin solution applied to a surface by spraying followed by baking at 300-320 F. and optionally a further heat-treatment at 550 F. to improve the adhesion by partially decomposing the resin, or (ii) colloidal molybdenum disulphide or tungsten disulphide combined with sodium silicate and water or with isoproponal is applied followed by heating to 350 F. and curing by drying in air, or (iii) tetrafluoroethylene, combined with 30-50% of water plus modifiers which is sprayed on, allowed to dry for 15 minutes and then fused at 725-800 F. for 15-25 minutes.
Patent ES-386691-A1 (ES)
Title: Quick coupling device for lpg containers
IPC: F16L37/133
Filed: 1970-12-21
Abstract: A coupling device for mounting appliances such as camp stoves gas lamps on compressed gas containers of the type having an opening surrounded by a circular projecting fold. The device comprises a hollow member equipped at one end with a number of fingers, and a sleeve, which may be displaced vertically along this hollow member. This sleeve in its lower position presses the fingers against the fold and is blocked in this lower position either by means of two semi-circular springs which co-operate with a special shaped slit in the sleeve or by means of special fingers which block the sleeve.
Patent ES-389164-A1 (ES)
Title: Sulphonamide and 2,4-diaminopyrimidine injectable suspension
IPC: A61K31/635
Filed: 1971-03-12
Abstract: An injectable suspension of a sulphonamide/2,4-diaminopyrimidine combination formed utilizing a strong base and basic pH conditions which is suitable for the treatment of bacterial infections in mammals or birds.
Patent ES-394118-A1 (ES)
Title: Machines for coating sheet material
IPC: B05C19/02
Filed: 1971-07-23
Abstract: A continuously operative coating machine electrostatically deposits heat activatable powdered polymers, for example polyurethane, on a release carrier which progressively passes through a heating zone. The powder is applied from an electrostatic fluidized bed employing a microporous wire cloth as both bed and charging grid. Deposited powder is transformed to a film which is brought into adhering relation to flexible sheet material such as a fabric to be coated. The carrier and the sheet material then pass over a cooling means where the film is solidified and bonded to the material and the unloaded carrier is returned for receiving further powder deposits. The powder bed may include compartments for successive application of different types of powder particles. An ionized zone preferably insures that the recirculated carrier is free from any residual positive or negative charge which might affect the charged powder particles to be deposited by the electrostatic fluidized bed. An alternative arrangement employs a reuseable release paper backed by a metallic flexible strip for transfer of the film to the sheet material. When either arrangement is operated without supplying sheet material, it may with slight modification be used to produce plastic sheeting per se.
Patent ES-403301-A1 (ES)
Title: Method and apparatus for cold-drawing metallic tubes
IPC: B21C3/14
Filed: 1972-05-30
Abstract: Steel tubes are cold-drawn in a bench wherein the reducing die is located in front of a sleeve defining with the external surface of the tube to be cold-drawn an elongated tubular confining space which tapers toward the die at an angle of less than 3 DEG . The space is filled with a lubricant at an elevated pressure of up to 100 atmospheres superatmospheric pressure, and such pressure rises automatically to a value exceeding at least 10 times the initial pressure when the tube is moved lengthwise at a speed of up to and in excess of 300 meters per minute. The rise in pressure of confined lubricant is due in part to friction between the lubricant and the external surface of the tube and suffices to insure that the moving tube remains out of mechanical contact with the die. A similar forwardly tapering confining space for reception of a pressurized lubricant can be provided between the internal surface of the tube and a confining member which is connected to and located behind a floating mandrel. The thus treated tube can be subjected to one or more additional cold-drawing treatments to reduce its outer diameter from 8-35 millimeters to about 3 millimeters and its wall thickness from about 3.5 millimeters to about 1 millimeter.
Patent ES-421868-A1 (ES)
Title: System for analysing telegraph characters
IPC: H04L12/52
Filed: 1973-12-28
Abstract: An auxiliary translator is added to the main translator of a system for analysing telegraph characters. The auxiliary translator has a number of inputs equal to the number of different telegraph characters of the alphabet employed and a plurality of outputs each providing a binary value made up of a number of binary elements lower than the number of binary elements making up the telegraph character. This arangement reduces the size of the main translator employed in prior art systems to analyse telegraph characters.
Patent ES-431933-A1 (ES)
Title: S-{8 omega-(1-imidazolyl) alkyl{9 hydrogen monothiosulfates and salts thereof
IPC: C07D233/60
Filed: 1974-11-14
Abstract: S-[ OMEGA -(1-imidazolyl)alkyl] hydrogen thiosulfates and their salts, and the antimicrobial activity thereof, are disclosed.