baber/WOPTO huggingface dataset:
Patent ES-352231-A1 (ES)
Title: Easy-open container and sealing tape
IPC: B65D8/02
Filed: 1968-03-30
Abstract: An adhesive tape, capable of hermetically sealing containers containing pourable material in which a rigid wall having a preformed aperture therein is sealed with said tape, comprises a flexible non-stretchy backing 1-10 mils in thickness which backing neither breaks nor elongates more than 25% under a tension of 4 lbs and is capable of being pulled back upon itself without rupture, said backing carrying on one side thereof a coating of adhesive, said adhesive being capable of application to said wall at a temperature below 150 F with fingertip pressure to form a hermetic seal capable of withstanding a pressure differential of at least 7.5 psi from both within and without said container, said adhesive coating when applied to a metal substrate at finger pressure affording resistance to dead shear load of at least 8.8 psi at 140 F for at least 1000 minutes, said tape having a peel resistance from metal and varnished metal within the range of 1-10 lbs/ihch width at least within a temperature range of 40 -100 F, said tape being readily peelable by hand from said wall without transfer of adhesive to said wall. The backing material may be an aluminium film or a polyethylene terephthalate film. The preferred adhesive is a block copolymer having 3 or more polymer block structures having the general formula -A-B-A-, wherein A is a non- elastomer block having an average molecular. weight of 50,000-125,000 and B is an elastomer block of 15,000-250,000 molecular weight e.g. polystyrene-polybutadiene-polystyrene. Other suitable polymeric materials are acrylate polymers, polychloroprenes, polyisoprenes. Tackifying agents for the elastomeric constituent may be rosin, polyterpene resins, coumarone-indene resins, phenol-aldehyde resins, chlorinated biphenyls, hydrogenated rosin and pentaerythritol or glycerol esters thereof. A primer may be applied to the backing to improve the anchorage of the adhesive thereto. Specific primers employed are based on (1) poly #-pinene and butadiene/styrene/ acrylonitrile and (2) polychloroprene and a phenol-formaldehyde resin. The adhesive may contain additives, e.g. silica, magnesium oxide, zinc oxide. In an alternative embodiment, a coating of a polymeric material may be applied to the underside of the opening to cover the adhesive on the adhesive tape exposed through the opening. In an example, this coating is a film of polyvinylidene chloride which has been primed with a primer comprising a poly-#-pinene resin and a terpolymer of butadiene/styrene/acrylonitrile and then coated with a polymer based on a polyterpene resin and a styrene-butadiene-styrene copolymer.
Patent ES-354810-A1 (ES)
Title: Improved coating compositions
IPC: C09D7/65
Filed: 1968-06-08
Abstract: Liquid coating compositions comprise, in a liquid continuous phase, a film-forming material, a rubbery polymer in the form of dispersed particles of average diameter in the range 0.01-10Á and, optionally, a plasticiser, the composition being capable of forming a dry coating comprising a film of polymer formed from said material, wherein the rubbery particles remain in dispersion and adhere to the plasticised or unplasticised filmform polymer and the rubbery polymer has a primary glass transition temperature of less than 0 C, a Youngs Modulus not more than a tenth of that of the film-form polymer and an extension to break at least ten times that of the film-form polymer. The film forming material may be an alkyd resin, an epoxy resin, a cellulose derivative, a polyimide, a polyester, a vinyl resin such as polystyrene or polyvinyl chloride, or an acrylic resin such as polymethyl methacrylate alternatively the film-forming material may comprise a monomeric or oligomeric material which is polymerised or cured in situ on a substrate to form the solid film, e.g. low molecular weight amine-formaldehyde, phenol-formaldehyde, epoxy or polyester condensates, and a liquid monomer may provide the liquid continuous phase. The rubbery polymer suitably has as its main component an appropriate acrylate or methacrylate ester, vinyl acetate or propionate, a low polymer of ethylene oxide alkyl-terminated at one end and terminated by polymerisable unsaturation at the other end, an olefin or a diene polyurethanes, polyamides and polyesters are also useful as the rubbery polymer. The liquid phase may comprise a volatile liquid. In Examples the following rubbery and film-forming components are used (1) polyethyl acrylate and hexamethoxymethyl melamine (2) ethyl acrylateglycidyl methacrylate-methacrylic acid copolymer (EGM copolymer) and styrene-methacrylic acid-butoxymethylacrylamide copolymer or melamine-formaldehyde or air-drying alkyd resin (3) EGM copolymer and either cellulose acetate butyrate or polymethyl methacrylate (4) EGM copolymer and polymethyl methacrylate (5) and (6) as for (2) or (3) but wherein the ethyl acrylate of the EGM copolymer is replaced by n-propyl acrylate or #-(#-butoxyethoxy)-ethyl acrylate respectively (7) EGM copolymer and a mixture of diphenylolpropane diglycidyl ether and oligomers thereof (8) vinyl acetate-2-ethyl-hexyl acrylate copolymer and polyvinyl alcohol (9) vulcanised butyl rubber and polymethyl methacrylate (10) polyurethane and polymethyl methacrylate (11) polythene and polymethyl methacrylate (12) polypropylene and styrenehydroxyethyl methacrylate copolymer (13) EGM copolymer (additionally containing units of dimethylaminoethyl methacrylate) and methyl methcarylate-methacrylic acid copolymer. The compositions are suitable for application to substrates such as metal, wood and plastic substrates. The coatings can be crosslinked by stoving. In Examples, the compositions are applied to metals, e.g. tin foil or sheet metal, and to wood panels.
Patent ES-355862-A1 (ES)
Title: Polymerisation of epoxy compounds
IPC: C08G59/68
Filed: 1968-07-06
Abstract: Polyepoxides are cured using as curing agent a tetrakis-(dimethylaminoalkoxy) silane Si[OC n H 2n N(CH 3 ) 2 ] 4 in which n is an integer, preferably from 2 to 8. The silane may be used at 0.5 to 10% by wt. of the epoxy compound. Specific silanes used in the examples to cure diglycidyl ethers of bisphenol A are: tetrakis - (N,N - dimethylaminoethoxy) - silane tetrakis - (N,N - dimethylaminopropoxy) - silane and tetrakis - (N,N - 2,2 - tetramethylaminopropoxy).silane. Curing may take place at elevated temperature, e.g. at 40 C for 7 to 8 hours to gel the composition, followed by hardening for 3 hours at 130 C.
Patent ES-355918-A1 (ES)
Title: Ignition system utilizing transistor for internal combustion engines
IPC: F02P3/08
Filed: 1968-07-09
Abstract: An ignition system for an internal-combustion engine comprises a storage capacitor C1 connected through a semi-conductor switching device for example a transistor T and through a trigger stabilization diode D1 with the primary winding L1 of an ignition transformer TR1. A control electrode B of the semi-conductor switching device is connected with a feedback winding L2 on the ignition transformer an alternator A produces the trigger pulse. Capacitor C2 is connected in parallel with the diode D1 and its function is to achieve a substantial reduction in the required pulse. In a modification the capacitor C2 is charged by the alternator coil L4. In another embodiment a variable capacitor is connected between the transformer side of the diode D1 and the collector of the transistor T. Other modifications are described.
Patent ES-357528-A1 (ES)
Title: Production of elemental sulphur and iron from iron sulphides
IPC: C22B1/14
Filed: 1968-08-24
Abstract: Iron and sulphur are recovered from sulphides by: (a) treating a slurry of finely-divided pyrrhotitic mineral sulphides in aqueous media with a free-oxygen-containing gas at below 120 C. (b) reacting the resultant slurry with sulphuric acid and sulphur dioxide to convert the oxidized compounds in the slurry to sulphates, and dissolve (c) separating the solution from the residue (d) heating the solution under oxidizing conditions to precipitate basic iron sulphate and (e) recovering the precipitate. Pyritic sulphide may be converted to pyrrhotitic sulphide by heating, giving sulphur. Sulphur may also be recovered from the residue of step (c) by slurrying with water, heating to above the melting point of sulphur for a short time to form sulphur globules, cooling to form pellets, and screening. A surface-active agent, e.g. gum arabic or a sulphonated fatty acid ester may be added prior to heating. Occluded sulphides may be removed from the sulphur pellets by hot filtration, or by extracting the sulphur into an organic solvent. In step (b) preferably sufficient sulphur dioxide is provided to ensure that all 3-valent iron is converted to 2-valent, and sufficient H 2 SO 4 is preset to ensure that at least one gram atom of sulphur is available per gram ion of iron. More preferably, half a mole of sulphur dioxide is provided per gram ion of ferric iron, and enough sulphuric acid to give an S/Fe ratio of 1À0 :1 to 1.2 : 1. If the iron sulphide contains non-ferrous metal compounds, these are taken into solution in step (a), and they may be removed, just prior to step (d) by reacting with metallic iron and/or a sulphidizing agent, e.g. S, H 2 S, (NH 4 ) 2 S. The product basic iron sulphate may be pelletized and roasted, and the SO 2 recycled to step (b). The resulting calcinate may be reduced at above 820 C. to give metallic iron.
Patent ES-359448-A1 (ES)
Title: Polymerization of vinyl chloride and its comonomers
IPC: C08F14/06
Filed: 1968-10-23
Abstract: Vinyl chloride is polymerized in bulk or a precipitating medium at -80 to + 10 C. in the presence of a halogenated diacyl peroxide (RCXYCO) 2 O 2 in which R is C 1 -C 10 saturated or unsaturated aliphatic or cycloaliphatic aromatic or heterocyclic radical, X is halogen and Y is hydrogen or halogen and a mineral acid salt of titanium in a valency state which will reduce the peroxide, particularly titanium trichloride.
Patent ES-381675-A1 (ES)
Title: Method for bending and straightening a cast bar and plant for carrying out such method
IPC: B22D11/00
Filed: 1970-07-10
Abstract: The invention relates to a method for bending and straightening a cast bar issuing from a stationary, curved bar guiding means of a continuous casting plant, using a bending and straightening apparatus comprising at least two bending and straightening rolls and a reaction roll, and, if desired, pulling rolls, in which the improvement resides in that the bending roll following the reaction roll is readjusted in dependence on a deviation from a desired pressure valve which is given when the cast bar is free from bending moments, the pressure being indicated by at least one pressure gauge arranged behind the bending apparatus, in order to offset the deviation from the desired value, whereupon, in cast this measure is not effective, the bending rolls are slewn around a horizontal rotation axis in a direction contrary to that in which said bending roll is readjusted, which measure guarantees that absolutely no bending moments are exerted on the cast bar leaving the bar guiding means in the area before the reaction roll nor on the bent and straightened cast bar leaving the last bending roll.
Patent ES-386653-A1 (ES)
Title: Integrated process for the preparation of urea and melamine
IPC: C07C67/00
Filed: 1970-12-19
Abstract: An integrated process for the preparation of urea and melamine is described wherein heat requirements for the decomposition of ammonium carbamate contained in the urea product solution, which is cycled as feed to the melamine synthesis stage, is supplied, at least in part, from the heat released by the desublimation of the melamine vapors obtained in the melamine synthesis gas product stream, by bringing this gas stream into direct contact, either in counter-current or co-current flow, with the ammonium carbamate-containing urea product solution.
Patent ES-403836-A1 (ES)
Title: Method for preventing the escape of tobacco crumbs or detritus at the ends of cigarettes in transparent packages
IPC: B65B19/02
Filed: 1972-06-14
Abstract: The specification describes methods for preventing tobacco crumb formation in cigarette packages by heating the tobacco, cushioning it or providing for an electrostatic charge.
Patent ES-415246-A1 (ES)
Title: Variable speed drive system
IPC: B65G21/14
Filed: 1973-05-26
Abstract: A variable speed drive for moveable elements guided along a trajectory has couplings connecting the elements in pairs. The couplings are formed of deformable polygonal loops having the same constant perimeter. The loops are mounted in tension between at least three linking points are carried respectively by two successive moveable elements and at least one linking point follows a cam arranged along the trajectory. The profile of the cam is such that the moveable element move toward and away from each other in the regions of deceleration and acceleration. Some of the linking points are formed by pivotable and/or slidable members to allow free formation of the polygonal loops.
Patent ES-426304-A1 (ES)
Title: 2-Oxy and 2-thio-2,3-dihydrobenzofuranyl-5-aminosulfonates
IPC: A01P13/00
Filed: 1974-05-14
Abstract: New and valuable 5-benzofuranyl esters having a good herbicidal action herbicides containing these compounds as active ingredients and a process for controlling the growth of unwanted plants with these compounds.
Patent ES-427692-A1 (ES)
Title: Gathering and windrowing machine
IPC: A01D51/00
Filed: 1974-06-26
Abstract: A machine for gathering and windrowing fruit, such as oranges, lying on the ground. The machine includes a carrier having a plurality of rotating brushes thereon which are positioned directly adjacent the ground. Each brush has a support member which engages the ground for permitting the brushes to follow the ground contour. The brushes, which may be disposed on opposite sides of the carrier, cause the fruit on the ground to be swept inwardly into a row to facilitate picking up of the fruit.
Patent ES-428743-A1 (ES)
Title: Process for manufacturing silicon-aluminum steel sheet with oriented grains for magnetic applications, and products thus obtained
IPC: C21D8/12
Filed: 1974-07-23
Abstract: Low carbon silicon-aluminum single-oriented steel sheet having high magnetic induction is produced by hot rolling at 1370 DEG -1430 DEG C., annealing from 10 to 60 seconds at 1050 to 1170 DEG C., slow cooling to 700 DEG -900 DEG C., quenching from 700 DEG -900 DEG C., cold rolling with a reduction in thickness of 80 to 90%, recrystallization and decarburization annealing in wet hydrogen from 780 DEG to 870 DEG C. for 2 minutes, and final annealing at 1200 DEG C. in a mixture of 10-50% hydrogen and 50-90% nitrogen. Cold rolling can be effected in two stages, the first stage to reduce the thickness by 20 to 50% followed by annealing at 700 DEG to 900 DEG C., quenching and final cold rolling with a reduction in thickness of 80 to 90%. The preferred temperature range prior to quenching, for one-step cold rolling, is 750 DEG to 850 DEG C. and for two-step cold rolling, the first quench is preferably from a temperature of 750 DEG to 850 DEG C. and the second quench preferably from a temperature of 850 DEG to 900 DEG C.
Patent ES-435081-A1 (ES)
Title: Apparatus for offset printing capsules
IPC: A61J3/07
Filed: 1975-02-26
Abstract: Apparatus for printing cylindrical hard shell capsule parts formed on the row of pins of a capsule mold pin bar. The apparatus includes a platen with a row of deformable printing pads spaced so that the respective pads and capsule parts are in registry when the two rows are brought together in printing relation.
Patent ES-442992-A1 (ES)
Title: Para-polyfluoroisopropyl-anilino-2-oxazoline compounds, pharmaceutical compositions and method of treating hypertension
IPC: C07C275/42
Filed: 1975-11-26
Abstract: Novel polyhaloisopropyl-substituted arylureas having potent antihypertensive properties are disclosed herein.
Patent ES-443485-A1 (ES)
Title: Production of chlorine dioxide
IPC: C01B7/03
Filed: 1975-12-13
Abstract: There is provided an improved process for the production of chlorine dioxide wherein an alkali metal chlorate, and a mineral acid are reacted in a single vessel, and the salt crystals separated from the generator crystal slurry.
Patent ES-445927-A1 (ES)
Title: Lowering blood pressure with new L-3-(3,4-dihydroxyphenyl)-2-methyl-alanine peptides
IPC: C07K1/113
Filed: 1976-03-10
Abstract: An L-3-(3,4-dihydroxyphenyl)-2-methyl-alanine peptide of the formula < IMAGE > wherein A is an alkylene radical which can be substituted by a hydroxyl group or by a phenyl radical which optionally carries at least one hydroxyl group, and R is a hydrogen atom or a lower alkyl radical or a glycyl or alanyl radical, OR A PHARMACOLOGICALLY COMPATIBLE SALT THEREOF. These compounds are outstanding in lowering blood pressure.
Patent ES-458638-A1 (ES)
Title: Arrangement for filling and venting a fuel tank, of an automobile in particular
IPC: B60K15/04
Filed: 1977-05-10
Abstract: An arrangement for filling and venting a safety fuel tank of the type characterized by two elastomer sheets joined at their peripheries, for use in automobiles, wherein a venting tube is disposed in the upper region of the tank with one of its ends inserted in a spout situated at the top of the tank where gases tend to accumulate and the other end opening into the upper part of the filler pipe of the tank just below an auto-blocking valve having an orifice therein for receiving a pump nozzle for filling the tank, and wherein a movable plate is provided for normally blocking the valve orifice.
Patent ES-462253-A1 (ES)
Title: Seat ring notch for gate valve guide rail
IPC: F16K3/12
Filed: 1977-09-09
Abstract: A gate valve body having annular tapered seat rings retained in counterbores at inlet ends of an axial flow passage with the seating surfaces of the seat rings engageable by a tapered gate which is vertically guided by outwardly extending tongues on the gate slidably retained in grooves between laterally spaced pairs of guide rails on the body, the seat rings having a minor height less than width of the groove between the pairs of guide rails and an outer diameter greater than the lateral spacing between the guide rails, the seat rings being inserted into the associated counterbore by initially rotating the seat rings 90 DEG from its final assembly orientation, radially shifting the seat ring to present the minor height section into one of the guide rail grooves, lowering the seat ring into registry with the flow passage, radially shifting the set ring into alignment with crescent shaped notches formed in the guide rails coaxial with the flow passage, rotating the seat ring to its assembly orientation and axially shifting the ring through the guide rail notches into operative position in the counterbore.
Patent ES-466573-A1 (ES)
Title: Rotary valve for power-assisted steering mechanism
IPC: B62D5/083
Filed: 1978-02-02
Abstract: A rotary valve in or for a power-assisted rack-and-pinion steering mechanism for a motor vehicle, the rotary valve comprising a valve sleeve, a rotor member rotatable within the valve sleeve, the rotor member and the valve sleeve each having axially extending grooves therein which cooperate to control the flow of fluid under pressure through the valve according to the angular disposition of the rotor member relative to the valve sleeve, and a torsion bar connecting the rotor member to the pinion of the rack-and-pinion steering mechanism, wherein the said pinion is cylindrical and is rigidly connected to the valve sleeve by means of an annular coupling member having an end portion which fits over an end portion of the pinion and has internal teeth which intermesh with the teeth of the pinion, the annular coupling member being brazed or otherwise bonded to both the pinion and to the valve sleeve.
Patent ES-467995-A1 (ES)
Title: Oil well spacer fluids
IPC: C09K8/60
Filed: 1978-03-17
Abstract: A high stability, nondamaging spacer fluid is provided containing readily available weighting agents such as calcium carbonate and iron carbonate dispersed in water using a polymer viscosifier, a salt inhibitor, a primary sulfonated dispersant and a secondary fatty acid amide dispersion. Conventional high density weighting agents can also be used. The spacer fluid is stable over a temperature range of about 32 DEG -300 DEG F for extended periods with densities ranging from 11 to 17.6 pounds per gallon.
Patent ES-468447-A1 (ES)
Title: Pyrido{8 2-1-b{9 quinazolin-ones and their methods of preparation
IPC: C07D491/147
Filed: 1978-03-31
Abstract: This invention relates to novel compounds of the pyrido-[2,1-b]-quinazolin-one series and their methods of preparation. These compounds have utility as antiallergy agents.
Patent ES-469478-A1 (ES)
Title: Method for forming glass containers
IPC: C03B9/36
Filed: 1978-05-05
Abstract: Method for forming glass containers by the blow and blow process in which a parison mold having a plurality of cavities is centrally positioned relative to a pair of blow molds having a plurality of cavities. The parisons are formed with their necks down in the parison mold from a charge of glass delivered to each cavity. Vacuum is applied to the neck area of the mold to form the finish portion of the container. A neck pin is pulled and air under pressure is fed to the interior of the area from which the neck pin is drawn to expand the glass within the parison mold at a continuous rate until the glass within the parison mold comes in contact with a baffle which closes the upper end of the parison mold. The parison mold is then opened and the parisons are transferred alternately from the parison mold to the blow molds where they are expanded into final shape. During the transfer of the parisons from the parison mold to the blow mold, air under pressure is maintained within the hollow interior of the parison. The parison transfer is carried out by the neck molds with parison counterblow pressure delivering means as well as puff or low pressure means for either puffing the parison during its invert movement from the parison mold to the upright position at the blow mold or to help sustain the parison against collapse during invert. The ability to apply puffing air to the parison during transfer is a significant step in the forming process.
Patent ES-473052-A1 (ES)
Title: Surfboard harness and towing attachment.
IPC: B63B35/81
Filed: 1978-09-02
Abstract: A harness device for attaching a towing line (17) to a surfboard (20) has an automatic release mechanism which operates to disconnect the surfboard from the line if the surfboards should turn over or become inclined to the length of the line by more than a predetermined threshold angle. The automatic release mechanism includes an enlarged head (18), for example, spherical or cylindrical, which is lodged into a coupling socket (14) in the underside of the board, the socket having a narrow mouth or lip (15) behind which the head lodges if the inclination of the line to the general plane of the surfboard is sufficiently small, while allowing the head to disengage from the socket if this inclination increases to an angle beyond the threshold inclination. Handles joined to the towing line may also be incorporated into the harness.
Patent ES-482513-A1 (ES)
Title: Tractor with large caster angle to improve steering clearance
IPC: B60K17/30
Filed: 1979-07-16
Abstract: An agricultural tractor with over-size front tires for use with a mechanical front wheel drive is provided with large caster angle front wheels to allow a front wheel to tuck under the tractor to achieve small radius turns.