baber/WOPTO huggingface dataset:
Patent ES-340460-A1 (ES)
Title: Flotation of Metallic Oxides.
IPC: B03D1/001
Filed: 1967-05-12
Abstract: In a process for the separation of metallic oxides from metallic oxide-containing materials by froth flotation, without the need for any desliming prior to flotation, a pulp containing the material in effectively dispersed state is treated with a collecting agent to effect activation of the metallic oxide values of the material. The pulp is conditioned at an ap- ,propriate pH to initiate flocculation of the metallic oxide values. The pH of the resulting pulp is then adjusted to a value suitable for further flocculation and for flotation of the metallic oxide values and is conditioned at the adjusted pH value to effect further flocculation of the metallic oxide values and dispersion of the gangue of the material in the pulp. The pulp is then finally subjected to a flotation process to recover the metallic oxides. The initial effective dispersion may be achieved without the addition of a dispersing agent over a range of pH's and conditioning times. Alternatively, dispersion requires careful control of pH, conditioning time and addition of a dispersing agent, e.g. sodium silicate, sodium hydroxide, lignin sulphonate or silicon tetrachloride. Where initial dispersion is carried at an alkaline pH, recovery of the metallic oxides is improved by the addition of an electrolyte, e.g. sodium fluoride, sodium sulphate or sodium chloride. Suitable collecting agents include fatty acids or the combination of a fatty acid with petroleum sulphonate and/or fuel oil, the fuel oil acting as a modifying agent. PH adjusters may include sulphuric acid, sodium silicate or sodium hydroxide. The flotation circuit may consist of a rougher stage followed by a number of cleaning stages either without or with conditioning between some or each of the stages using a dispersing agent. Carbonates which tend to float with the metallic oxides in the later stages of cleaning may be depressed by lowering the pH of the pulp to acid and conditioning with sodium fluoride. Where a wet grinding circuit precedes the flotation circuit, the dispersing agent and/or the collecting agent may be added directly to the grinding circuit. A wetting agent may be added to the pulp in the grinding circuit. Examples of four-stage conditioning cycles and of comparative tests carried out on iron ores and uranuim ores are given. The process is also applicable to the treatment of materials already in comminuted or naturally finely divided condition, e.g. tailings, slimes, beach sands or clays containing, for example, vanadium oxides.
Patent ES-351377-A1 (ES)
Title: Emulsion polymerization of unsaturated monomers utilizing alkyl sulfide terminated oligomers as emulsifiers and resulting product
IPC: C09K23/52
Filed: 1968-03-08
Abstract: A stabilized latex coating composition containing a stabilizer, an inert filler and an alkyl sulfide terminated oligomer having an average molecular weight between about 200 and 5,000.
Patent ES-355006-A1 (ES)
Title: 9-phenyl-1,5-diazabicyclo(4.3.0)nonanes
IPC: C07D237/14
Filed: 1968-06-14
Abstract: Compounds of the formula wherein R1 signifies a hydrogen atom, a chlorine atom or a C 1-4 alkoxy radical, and acid addition salts thereof, are obtained by treating a compound of the formula wherein X signifies a chlorine, bromine or iodine atom, with a C 1-4 alkali metal alkoxide, and optionally converting the compound of Formula (Ia) to an acid addition salt. Compounds of the formula wherein R11 signifies a hydrogen atom or a C 1-4 alkoxy radical and R1 2 signifies a C 1-4 straight chain alkyl radical and acid addition salts thereof, are obtained by treating a compound of the formula with sodium in the presence of liquid ammonia, and optionally converting the compound of Formula (Ib) to an acid addition salt. Compounds of the formula and acid addition salts thereof, are prepared either by reducing a compound of the formula with a complex metal hydride and then treating the resulting compound of Formula (VI) with a halogenating agent to form compound III by ring closure, or by first treating the compound V with a chlorinating agent to produce a compound of Formula (VII) wherein Y represents a chlorine atom, and then reducing the compound VII with a complex metal hydride to give compound III by ring closure, the latter compound optionally being converted to an acid addition salt. The compound II may be obtained by treating compound III with a compound of the formula CH 3 X (IV). The compound of Formula (IIa) may be obtained by reacting a compound of Formula (III) with a compound of formula R1 2 X (IVa). The compound of Formula (V) may be obtained by reacting a compound of general formula with 3-hydrazinopropanol. Pharmaceutical compositions may comprise compounds of the Formul[mu] (Ia), (Ib), (III) and (VI) in admixture with organic or inorganic adjuvants which are physiologically inert and other conventional additives may also be present the compositions may be administered as tablets, dragÚes, syrups and injectable solutions. Compounds of Formula (Ia) are said to have a stimulating effect on the central nervous system and to be useful as antidepressants compounds of Formula (Ib) are said to have a stimulating effect on the central nervous system and to possess hypotensive and local anaesthetic effects compounds of Formula (III) are said to have a stimulating effect on the central nervous system and to possess analgesic, hypotensive and anti-inflammatory effects compounds of Formula (VI) are said to possess anti-inflammatory and lipolytic activities.
Patent ES-406989-A1 (ES)
Title: Assembly for forming metal furniture structures from interengaging element
IPC: F16B12/50
Filed: 1972-09-25
Abstract: This invention provides an assembly for component parts which can be easily assembled to form a rigid structure such as the frame of an article of furniture, for example a table. The structure is made up of pairs of interengaging elongate elements, one element of each pair having a channel section and the other having a forked end which fits over the channel section to form a T-unit. The channel section element is formed, preferably by stamping, with an internal abutment for the head of a bolt which passes through the intersection of the elements and holds the latter together.
Patent ES-415370-A1 (ES)
Title: 1-alkoxycarbonyl-2-alkylcarbamoylmethyl-3-(2-acylamido-phenyl)isothiourea
IPC: C07C335/38
Filed: 1973-05-30
Abstract: Isothiourea derivatives of the formula:
Patent ES-419023-A1 (ES)
Title: Capsule for use in fixing rock-bolts
IPC: E02D5/80
Filed: 1973-09-24
Abstract: The disclosure is of a capsule comprising a sealed frangible phial containing a hardenable compound with activator and aggregate, sealed by means of at least one shrunken-on cap of cellulosic or viscosic or other membranaceous material.
Patent ES-421066-A1 (ES)
Title: Cryogenic storage tanks
IPC: F17C3/02
Filed: 1973-12-01
Abstract: A cryogenic storage tank for the storage of low temperature liquids, such as liquefied petroleum gas or liquefied natural gas for example, at or about atmospheric pressure and of the kind having a double-skinned wall whose cavity is packed with insulating material, and characterised in that a non-toxic non-combustible gas is stored at an elevated pressure in a chamber defined by the cavity between the inner and outer skins of the side wall of the tank.
Patent ES-428433-A1 (ES)
Title: Reservoir for storing hydrocarbon liquids and process for fabricating the same
IPC: B65D88/34
Filed: 1974-07-19
Abstract: A reservoir for hydrocarbon liquids is formed by a hollow in the ground lined with a gas-tight sheet and covered by a roof floating on the liquid in the hollow, the roof comprising a non-metallic rigid body which is gas-tight and of low density, a meter cube of the body weighing between 15 kgs and 100 kgs, a layer of earth or the like covering the surface of the body, and auxilliary gas-tight means connecting the circumference of the roof body to the circumference of the hollow.
Patent ES-428948-A1 (ES)
Title: Axle lubrication system
IPC: B60K17/16
Filed: 1974-08-05
Abstract: A universal axle mechanism is provided by an especially configured differential carrier housing which can be mounted to an axle housing with the axle housing orientated either upside down or right-side up and in each axle position lubricate the axle mechanism when the axle is driven in either a forward or rearward direction. The carrier housing includes several cored passageways within the carrier housing communicating with a common passageway leading to the axle differential. In each axle housing position, the common passageway is maintained out of direct communication with the sump. Lubricant is directed into the several passageways and to the common passageway by means of either a pick-up director member, the pinion drive gear or the ring gear the lubricant following different flow paths into selective passageways leading to the differential dependent upon the driven direction of the axle and the axle mounting position.
Patent ES-433159-A1 (ES)
Title: Contact body for cooling towers
IPC: B01J19/32
Filed: 1974-12-19
Abstract: A contact body comprising a sheet of material adapted to be positioned upright on edge within a cooling tower along with a plurality of similar bodies. Water is caused to flow downwardly upon the surfaces of said body, in the preferred embodiment countercurrent to the flow of air through the tower. A fine surface structure on the body consists of corrugations or folds disposed at an angle to the vertical between 65 DEG and 88 DEG . The corrugations have a wave length below 12 mm and an amplitude between 1 and 5 mm. The corrugations are arranged in fields whose angles of inclination alternate successively between positive and negative inclination. The fields may range between 20 and 50 mm and alternate along the vertical extent of the body. They may also alternate along the horizontal extent of the body. Integral spacer elements are pressed out of the body to position adjacent vertical bodies in spaced, generally parallel arrangement. The structure of the body may also be undulating to increase the surface area exposed to the air flow.
Patent ES-437992-A1 (ES)
Title: Safety apparatus for stopping an internal combustion engine in response to irregularities occur in the oil pressure or in the water temperature
IPC: F01P5/14
Filed: 1975-05-28
Abstract: A safety apparatus causes an internal combustion engine to be automatically stopped when irregularities are produced in the oil pressure or in the water temperature.
Patent ES-440362-A1 (ES)
Title: Sealing-compartment arrangement in main coolant pumps
IPC: F04D3/00
Filed: 1975-08-20
Abstract: This invention relates to an improvement in a mounting for the sealing housing in a main coolant pump having a vertical pump shaft, an impeller at the lower end of the pump housing, and the pump housing being closed at the upper end thereof by a pump cover in the region of which the sealing housing is located, THE IMPROVEMENT COMPRISING THAT SAID SEALING HOUSING IS POSITIONED UPWARDLY FROM SAID PUMP COVER, AN OUTER PIPE MEANS CONNECTING SAID PUMP HOUSING AND SAID SEALING HOUSING AND PASSING WITHOUT TOUCHING THROUGH AN APERTURE IN SAID PUMP COVER, SAID OUTER PIPE MEANS HAVING A PORTION OF SWAN-NECK CONFIGURATION, IN CROSS-SECTION, IN AN EXTENSION OF SAID PIPE MEANS INTO A REGION OF A HOUSING FLANGE, AND SAID SWAN-NECK PORTION TERMINATING IN A FLANGE BETWEEN SAID PUMP HOUSING AND SAID PUMP COVER.
Patent ES-441747-A1 (ES)
Title: Laser alteration of accommodation coefficient for isotope separation
IPC: B01D59/34
Filed: 1975-10-13
Abstract: Method and apparatus for separating isotope types by inducing an isotopically selective vibrational excitation of molecules containing at least one atom of the element type whose isotopes are to be separated. Vibrational excitation is induced in the molecules by finely tuned, narrow bandwidth laser radiation applied to a gaseous flow of the molecules. Isotopic separation of the molecules is achieved from the enhanced difference in diffusion rates for the molecules due to an alteration of the accommodation coefficients in the excited molecules.
Patent ES-445450-A1 (ES)
Title: Method for the preparation of optically pure loweralkyl imidazole carboxylates
IPC: C07D233/66
Filed: 1976-02-23
Abstract: Optically active C1-C3-alkyl esters of 1-(1-phenylethyl)-1H-imidazole-5-carboxylic acid are prepared by reacting racemic 1-(1-phenylethyl)-1H-imidazole-5-carboxylic acid with an optically active isomer of 1-phenylethylamine, 1-(1-naphthyl)ethylamine or 1-(2-naphthyl)ethylamine. The resulting insoluble diastereomeric salt is separated off and treated with a strong non-oxidising mineral acid. The resulting optically active 1-(1-phenylethyl)-1H-imidazole-5-carboxylic acid is then esterified with a C1-C3-alcohol. In another process, the resulting optically active acid is firstly converted into the acid halide and then correspondingly esterified. The prepared compounds can be used as hypnotics.
Patent ES-451266-A1 (ES)
Title: Golf balls
IPC: A63B37/00
Filed: 1976-09-06
Abstract: A golf ball has a surface pattern of dimples arranged to provide at least 12 symmetrically disposed bald patches, a bald patch being defined in terms of its ability to accommodate a spherical rectangle of specified minimum width and area relative to the dimple size.
Patent ES-452153-A1 (ES)
Title: Casting plate straps and/or intercell connectors of electric storage batteries
IPC: B22D25/04
Filed: 1976-10-06
Abstract: A plate strap is die-cast integrally with an upstanding conducting member, which may be either a terminal post or a riser to form part of an intercell connector, by means of a mold having a cavity affording an elongated plate strap position which is closed at the top and has slots in the floor through which the plate lugs project, and a chimney position upstanding from the plate strap position to form the upstanding conducting member. The part of the floor between the plate lugs is formed by cylindrical dowels each having a diameter substantially equal to the spacing between adjacent lugs. The dowels are retracted to permit removal of the mold from the plate strap or straps. A single mold may form a row of plate straps associated with a number of intercell connectors and a pair of terminal posts.
Patent ES-457123-A1 (ES)
Title: Lift chain equalizing device
IPC: B66F9/08
Filed: 1977-03-23
Abstract: A material handling vehicle has a generally vertically movable carriage, first and second spaced apart, chain assemblies connected to the carriage, and a power device associated with the chain assemblies for generally vertically moving the first ends of the chain assemblies and the carriage in response thereto. A pivot element is associated with the chain assemblies for controlling relative movement thereof.
Patent ES-458760-A1 (ES)
Title: Method of applying metal sleeve to concrete reinforcing bar, metal sleeve and swaged connection
IPC: E04C5/16
Filed: 1977-05-13
Abstract: A method of applying a metal sleeve to a concrete reinforcing bar by introducing between opposed surfaces of the sleeve and the bar, particles having a hardness greater than that of the bar and the sleeve and then compressing the sleeve on to the bar with a sufficient force to cause the particles to bite into and grip both the bar and the sleeve. The metal sleeve may be provided as having on its internal surface particles of the foregoing properties. The swaged connection is achieved by carrying out the foregoing method. The invention also contemplates a concrete reinforcing bar with the swaged connection.
Patent ES-459121-A1 (ES)
Title: Method of grafting vinyl chloride onto ethylene-vinyl acetate and ethylene-alkyl acrylate copolymers
IPC: C08F4/00
Filed: 1977-05-25
Abstract: An improved process for grafting vinyl chloride onto ethylene-vinyl acetate or ethylene-alkyl acrylate copolymers in the gel phase in the presence of radical formers soluble in the monomer wherein the ethylene-vinyl acetate or ethylene-alkyl acrylate copolymer is in powder form and a combination of at least two initiators having different decomposition temperatures are employed during the grafting, the resultant grafted copolymer and the use of the same as an impact strength improving component or polyvinyl chloride or vinyl chloride copolymers.
Patent ES-461592-A1 (ES)
Title: Impact device for use in nail driving hook fastening and the like
IPC: F02M49/04
Filed: 1977-08-12
Abstract: The nail driver has a main piston (29) which pushes a rod through the guide to drive the nails held in the magazine. When handgrip is depressed it pushes down a U-shaped member which opens the gas inlet valve and allows the gas to flow into a chamber inside the hollow piston rod (36). Further movement of the handgrip depresses a plunger which allows a spring to pull a lever downwards. The motion of this lever releases a series of interconnected levers and valves with the result that the gas flows into the combustion chamber followed by the correct amount of air. The mixture is then ignited and drives the piston (29) downwards against a spring.
Patent ES-462200-A1 (ES)
Title: Transmission mechanism with hydrokinetic coupling device and reversing device
IPC: F16H47/06
Filed: 1977-09-08
Abstract: Transmission mechanism located between a driving shaft and a driven shaft and comprising a hydrokinetic coupling device and a device for reversing the rotation direction of the driven shaft. The hydrokinetic device comprises a driving wheel and a driven wheel, whereby the latter can be coupled to the driven shaft by means of a reversing device constituted by a planet gear, comprising planet wheels and bevel gears, located substantially in the center of the hydrokinetic device via hydraulically controlled coupling means and located on either side of the hydrokinetic device, whereby the driving and driven wheels, reversing device and coupling means are all located in a fluid-filled enclosure. An interesting application of the invention is to the automobile industry.
Patent ES-465934-A1 (ES)
Title: Method and apparatus for cooling drawn wire
IPC: B21C9/00
Filed: 1978-01-13
Abstract: A method and apparatus for cooling elongate material, such as wire, after it has been drawn through a die, in which liquid coolant is applied to the drawn elongate material in only sufficient quantity to enable all or substantially all of the applied liquid coolant to be evaporated thus utilizing the latent heat of evaporation of the liquid coolant to cool the elongate material.
Patent ES-466728-A1 (ES)
Title: Extruding thermoplastics with marbled effect - using different polymers fed through separate screws and mixing tool at nozzle
IPC: B29C48/445
Filed: 1978-02-07
Abstract: An extruder has two coaxial screws with opposing threads to feed separate bodies of material to the nozle, the second screw is driven whilst the first is fixed, and a mixing device is fixed at the nozzle end. The mixer is a head forming a bearing for the second screw, it has conical spaces which are open at one end and with gaps between them, the spaces lie between a ring attached ot the leading end of the second screw and two coaxial bearing rings holding hte second screw between the shaft of the first screw and the barrel, so that polymer flows from the first screw inside the spaces and from the second screw in the gaps (or vice versa) in a number of streams equal to the number of spaces and gaps. Produces a symmetrical distribution of colour/coloured streams of polymer to form a fine marbled effect.
Patent ES-467791-A1 (ES)
Title: 1-Phenyl-2-amino-1,3-propanediol-N-aryloxyalkyl derivatives
IPC: A61P21/00
Filed: 1978-03-11
Abstract: The invention relates to novel 1-phenyl-2-amino-1,3-propanediol-N-alkyl derivatives having the general formula I < IMAGE > (I) wherein R1 is hydrogen, alkyl having from 1 to 8 carbon atoms or phenoxymethyl, and R2 is hydrogen, alkyl having from 1 to 8 carbon atoms or 2,2-diphenylethyl, with the proviso that if R1 is phenoxymethyl then R2 may stand only for methyl, and if R2 is 2,2-diphenylethyl then R1 may stand only for hydrogen, and its isomers and pharmaceutically acceptable salts. Furthermore, the invention relates to a process for preparing these compounds. The novel 1-phenyl-2-amino-1,3-propanediol-N-alkyl derivatives having the general formula I possess significant anti-anginose activity and show several other biological activities.
Patent ES-468240-A1 (ES)
Title: Hollow fiber permeator
IPC: B01D63/02
Filed: 1978-03-27
Abstract: Hollow fiber permeator units which are individually capable of producing 250,000 gallons per day of processed water and which can be economically made are disclosed. An elongate, ordered bundle of selectively permeable hollow fiber lengths passing through a central tubesheet is formed around a perforated feed tube containing a coaxial permeate conduit which is connected to permeate collecting bores in the tubesheet. The resulting assembly is enclosed in a filament-wound casing interrupted only by the tube portions extending from its ends.
Patent ES-468750-A1 (ES)
Title: Veterinary compositions
IPC: A61P33/02
Filed: 1978-04-13
Abstract: The invention relates to preparations suitable for use in veterinary medicine, in particular to preparations which are suitable for the treatment of diseases in poulty caused by bacteria and protozoa. The preparations are distinguished in that they contain an effective amount of trimethoprim in combination with an active amount of sulfaquinoxaline in a weight ratio of trimethoprim to sulfaquinoxaline of 1 : 1 to 1 : 4.
Patent ES-469112-A1 (ES)
Title: 2,5-Dihydro-1,2-thiazino(5,6-b)indole-3-carboxamide-1,1-dioxides and salts thereof
IPC: C07D209/42
Filed: 1978-04-25
Abstract: Compounds of the formula < IMAGE > WHEREIN R1 is hydrogen, methyl or ethyl R2 is methyl or ethyl Y is hydrogen, fluorine, chlorine, bromine, methoxy, methyl, ethyl or trifluoromethyl and Ar is 2-thiazolyl which may have one or two methyl or ethyl substituents attached thereto 5,6-dihydro-4H-cyclopentathiazol-2-yl 4,5,6,7-tetrahydro-2-benzothiazolyl 2-benzothiazolyl 3-isothiazolyl which may have a methyl substituent attached thereto 2-pyridyl which may have a methyl or hydroxyl substituent attached thereto 3-pyridyl 4-pyridyl 4-pyrimidinyl pyrazinyl 2-benzimidazolyl 2-oxazolyl which may have a methyl substituent attached thereto 2-benzoxazolyl or phenyl which may have a fluoro, chloro, bromo, methyl, ethyl, trifluoromethyl or methoxy substituent attached thereto and non-toxic, pharmacologically acceptable salts thereof formed with inorganic or organic bases. The compounds as well as their salts are useful as antiphlogistics and blood platelet aggregation inhibitors.
Patent ES-471446-A1 (ES)
Title: Casting of articles from compositions containing calcined gypsum and Portland cement
IPC: C04B28/14
Filed: 1978-07-05
Abstract: An article is cast from a composition comprising a binding agent containing, by weight, from 90% to 10% calcined gypsum and from 10% to 90% Portland cement mixed with water to produce a fluid mixture which is caused to flow into a mould or other supporting device and is there allowed to set. To increase the durability of the cast article in the presence of moisture, sodium carbonate in an amount up to 5% by weight of the dry weight of the cement is added to the composition. The sodium carbonate is preferably present in an amount between 0.1% and 0.5% of the dry weight of the cement and the composition preferably also contains an acrylic resin emulsion in an amount from 0.25% to 4% of the dry weight of the gypsum and cement in the composition and a pigment such as iron oxide, titanium oxide or cobalt oxide in an amount from 0.25% to 4% by weight of the dry weight of the gypsum and cement in the composition.