baber/WOPTO huggingface dataset:
Patent ES-233041-A1 (ES)
Title: Preparation of polyesters using an onium compound as a catalyst
IPC: C08G63/87
Filed: 1957-01-15
Abstract: In a process for making polymethylene terephthalates by effecting an ester-interchange between a glycol of formula OH(CH2)nOH (where n is 2-10) and polycondensing the product, polymers of good lucidity and thermal stability are obtained by using as an ester-interchange catalyst an organic sulphonium, phosphorium, oxonium or quarternary ammonium base or a metal-free salt thereof. Preferably these bases or salts are also used as the polycondensation catalyst. Specified catalysts are tetraethyl ammonium terephthalate, tetraethyl ammonium hydroxide, tetraethyl ammonium chloride, tetraethanol ammonium terephthalate, dibutyl ethyl sulphonium terephthalate, dibenzyl methyl sulphonium hydroxide, tetramethylene methyl sulphonium chloride, tetrabutyl phosphorium hydroxide, ethyl trimorphinyl phosphorium bromide, 2 : 6-dimethyl-g -pyrone hydrochloride and 2 : 6-dimethyl-g -pyrone methylate. The polymers are suitable for making threads, fibres and films. In examples, polyethylene terephthalate was made by effecting ester-interchange between dimethyl terephthalate and ethylene glycol at 140-225 DEG C. in the presence of one of the specified catalysts and polycondensing the resulting bis - (2 - hydroxyethyl) - terephthalate at 272-282 DEG C.
Patent ES-334414-A1 (ES)
Title: Papermaking
IPC: D21H17/60
Filed: 1966-12-10
Abstract: An offset paper is produced by adding to the slurry at least 50 parts by weight per million parts of dry pulp of a composition comprising 20 to 2 parts by weight of hydrophobic silica suspended in 80 to 98 parts of mineral or synthetic oil insoluble in water, having low vapour pressure, a viscosity of 20 to 400 S.U.S. at 100 F and a specific gravity of less than one. Specified mineral oils are paraffinic and naphthenic, including cutting oils, kerosene, food-grade mineral oils and halogenated hydrocarbons. Mineral seal oil is preferred. Examples of synthetic oils are aliphatic diesters, silicate esters and polyalkylene glycols. Hydrophilic colloidal silica such as silica aerogel, fume silica, and precipitated silica flocculated by adding sodium ions to a sodium silicate solution may be converted to hydrophobic silica by adding to a dispersion in oil of hydrophilic silica of moisture content of at most 0.5% by weight, a hydrophobing agent such as methylhydrogenpolysiloxane and heating to 200 to 350 F. To help disperse the silica in the oil, 0.4 to 1.0 parts by weight per 100 parts of oil of a fluidising agent, preferably the same compound as the hydrophobing agent, may be added to the composition.
Patent ES-339723-A1 (ES)
Title: Micropumps for delivering accurately measured and adjustable quantities of liquid
IPC: F04B13/00
Filed: 1967-04-13
Abstract: A pump, e.g. operated by a volumetric counter for injecting measured quantities of one liquid into another liquid measured by the counter, comprises a crank-actuated piston 6 reciprocating in a cylinder block 8 which is axially adjustable by a screw 21 to vary the effective piston stroke, and hence the output. The piston engages the delivery valve 9 and moves it into the cylinder extension 14 at the end of its discharge stroke when the cylinder block 8 has been moved leftwards to reduce the pump output. In this setting of the cylinder block 8, no liquid is drawn into the cylinder during the initial part of the suction stroke until the piston uncovers the inlet port 18. A valve 20 prevents reverse flow through the inlet 19. The discharge valve 9 has an O-ring seal 11, and flats on its periphery for passage of the discharged liquid to outlet 17.
Patent ES-340270-A1 (ES)
Title: Improvements in, and relating to a device for the lifting, moving in a lateral direction and putting down again of a plurality of articles suspended from a carrier
IPC: B65B21/18
Filed: 1967-04-20
Abstract: A carrier from which articles, e.g. bottles 6, are suspended is moved along a path including two upright portions 12, 13 by a link 10 connected at 14 to a link 15 rotated with substantially sinusoidal angular velocity about a shaft 16 which is ultimately driven from a uniformlyrotating shaft 24. In the form illustrated bottles 6 are lifted from an endless conveyer 1 and deposited in crates 4 on a conveyer 3. The shaft 16 is driven by a chain 19 passing around sprockets 17, 18 and driven by a connecting-rod 21 from a crank 23 on the uniformly-rotating shaft 24. The carrier 7 is maintained at a fixed orientation by chains passing around sprockets centred on the pivots 9, 14, 16.
Patent ES-341721-A1 (ES)
Title: Tufting mechanism,method,stitches and article
IPC: D05C15/14
Filed: 1967-06-13
Abstract: A tufting machine comprises a first looper for seizing a yarn loop thrown by an eyed needle, a second looper for taking the loop from the first looper and for holding the loop for penetration by the needle during the next stroke for forming a chain stitch, and a finger so shiftable that the needle passes alternately on opposite sides of the finger to lay a yarn loop thereover. Backing fabric 173 is fed between an upwardly-inclined support plate 27 and a transversely-movable upwardly-inclined presser plate 36 provided with yarn-supporting wire fingers 37 each formed with a hump 99 near its free end. A needle 32, during the ascent following a first penetration of fabric 173 to the left of a finger 37, throws a first loop 73 which is seized by the beak 57 of a looper 34 oscillating in a vertical plane. A horizontally-reciprocating looper 35 then moves forward and a pair of beaks 74, carried by looper 35 and spring- biased together, move into loop 73 to retain it while looper 34 withdraws. Plate 36 then moves leftwards with the backing fabric, whereby needle 32 in the second penetration to the right of finger 37 lays yarn over the latter before entering the loop 73 held by looper 35, which then withdraws to release loop 73. A yarn takeup then pulls loop 73 up and around needle 73 to form a first chain stitch 100. During its next ascent the needle throws a loop 178 which, as previously, is seized in succession by the loopers 34 and 35. After the needle has withdrawn from loop 73, feeding movement of the backing fabric pulls the yarn over the hump 99 to tighten the chaining loop 73 on the lower side of the fabric and to leave a pile loop 180 on the upper side of the fabric. Presser plate 36, and with it the backing fabric, then move rightwards to their initial position, whereby needle 32 in its third penetration passes to the left on finger 37 and lays yarn thereover. During continued operation, each needle of the multi-needle machine produces a succession of loose-stitch zig zag chain stitches having the chaining loops 73 tight against the reverse side of the fabric and the other loops 180 forming uncut pile on the obverse side of the fabric to produce one-sided terry cloth. Presser plate 36 is carried by an axially-slidable shaft (103) journalling a cylindrical cam (118) formed at each end with respective cam surfaces (120, 121) co-operating with respective fixed rollers (128, 129) for imparting reciprocating motion to shaft (103) via thrust bearings (134) carried thereby.
Patent ES-343808-A1 (ES)
Title: Percussion fuze including rotary delay provisions
IPC: F42C15/188
Filed: 1967-07-26
Abstract: Fuze particularly for rifle and pistol grenades, comprising a drum 14 arranged to be rotated about a shaft 7 by a spring 9 to align a detonator (not shown) located within a bore 24 in the drum, with a charge 6, the rate of rotation being controlled by movement of a lug 18, fast with the drum in a circumferential, sinusoidal groove 17 in the shaft and the inertia of the drum. The detonator may be slidable in the bore toward a firing pin (not shown) located at one end of the bore, and is held in a safe position by a locking ball 28 extending through the wall of the drum. A finger 30 holds the ball in place. In operation, as the fuze is accelerated, a plunger 25 sets back and shears a wire 34 to release the drum for rotation. As the drum rotates the locking ball 28 is freed from the finger 30 and releases the detonator for movement towards the firing pin on deceleration of the fuze. In a modification (Fig. 8, not shown), the firing pin (40) is located within a chimney extending from the base of a cap (37) covering the fuze, and the detonator is brought into alignment with this pin in the armed position.
Patent ES-361971-A1 (ES)
Title: Alkylhydroxyphenyl polyamides
IPC: C07D211/16
Filed: 1968-12-28
Abstract: Compounds consisting of (a) from 2 to 4 amide units of formula:- in which R1 is hydrogen or lower alkyl (1-6 carbon atoms) and x is 1-6 and (b) 1-3 polyvalent hydrocarbon chains having 2-30 carbon atoms, one of the free nitrogen atom valences each amide group being satisfied by a free carbon atom valence of the chain and the other being satisfied by a hydrogen atom or a free carbon atom valence of the same or a second hydrocarbon chain or (c) a tris(polymethylene)- amine group of 6-18 carbon atoms, one of the free nitrogen atom valences of three of the amide units being satisfied by one of the three free carbon atom valences of the tris(polymethylene) amine and the other free nitrogen atom valences being satisfied by hydrogen atoms or (d) a N,N,N1,N1-tetra(polymethylene)alkane diamine group of 10-30 carbon atoms one of the free nitrogen atoms of each of four of the amide units being satisfied by one of the four free carbon valences of the diamine and the other free. nitrogen valences of the amide units being satisfied by hydrogen, are used as antioxidants for lubricants of the aliphatic ester type e.g. di- (2-ethylhexyl)-azelate and pentaerythritol tetracaproate animal and vegetable oils e.g. linseed oil, fat, tallow, lard, peanut oil, cod liver oil, castor oil, palm oil, corn oil and cotton seed oil hydrocarbons e.g. gasoline, natural and synthetic diesel oil, mineral oil, fuel oil, drying oil and cutting fluids and waxes. Examples are given of the use of the antioxidants in the treatment of (a) a mineral oil (Ex. 9) (b) lard and cotton seed oil (Ex. 10) (c) gasoline (Ex. 11) (d) paraffin wax (Ex. 12) and (c) lubricating oil (Ex. 13).
Patent ES-363984-A1 (ES)
Title: Improvements relating to bonding of metal to polymeric material
IPC: C08L61/04
Filed: 1969-02-22
Abstract: Metals are bonded to thermoplastic polymers or elastomeric block copolymers by contacting in the presence of compounds capable of reacting to form an aldehyde condensation resin and heating to react them, the compounds being mixed with the polymer before application to the metal. Additionally, the metal can be coated with the compounds. The metal may be continuous sheet, fibres, filaments or cords. The reactant compounds. are (a) a formaldehyde-generator, preferably hexamethylene tetramine, although other compounds are. mentioned, e.g. encapsulated paraformaldehyde, and various melamine and pyridine derivatives, and (b) an aromatic hydroxy compound, (e.g. resorcinol, 1-3 or 1-5 dihydroxynaphthalene) a novolak resin, or melamine or urea, optionally alkylated. Suitably 0.1-10 parts by wt. both of hexamethylenetetramine and of resorcinol are used per 100 parts by wt. polymer. Specified metals are steel, zinc, copper, aluminium, tin and alloys thereof, e.g. brass, "Duralumin" (R.T.M.) Exemplified polymers are polyvinyl chloride, polyvinyl acetate, copolymers of ethylene/ vinyl acetate, and ethylene/ethyl acrylate, and ionomeric ethylene/methacrylic acid copolymers. The polymeric materials can include plasticisers, stabilisers, curing agents, pigments and fillers. In examples, wires are embedded in polymer compositions and metal cones are adhered to polymers, by generating the aldehyde condensate under pressure at 150 - 180 C.
Patent ES-374398-A1 (ES)
Title: Damping arrangements
IPC: B63B39/03
Filed: 1969-12-10
Abstract: A method of damping vibrations in the hull of a floating vessel by transferring vibrational energy from the hull to a liquid-gas system within the hull, the vibrational energy being absorbed within the system by compression and expansion of the gas by the liquid and finally dissipated by friction in the liquid-gas system. Assemblies are disclosed for damping vertical, transverse or torsional vibrations in the hull.
Patent ES-385288-A1 (ES)
Title: Measurement of Rate of Material Flow
IPC: G01G13/00
Filed: 1970-11-06
Abstract: The weight per unit time of moving bulk material is measured by allowing the material to fall freely through a vertical shaft 7 and measuring the absorption by the falling material of radiation from a radio-active source 8 using a detector 9. In the arrangement shown, the cross-section of the material measured is chosen so that the absorption is a logarithmic function of the flow-rate. The detector output is fed to a regulator unit 10 which operates on drive 6 to control the speed of the conveyer 3, feeding material to the shaft, so that the amount of material supplied per unit time is either constant or varying according to a predetermined programme. Alternatively, the flow to the conveyer 3 from silo 1 is controlled by the regulator operating on slide gate 2.
Patent ES-390118-A1 (ES)
Title: Reservoirs for the storage of liquids especially volatile liquids
IPC: B65D88/76
Filed: 1971-04-13
Abstract: This invention pertains to a reservoir with a very large capacity, in excess of 200,000 tons, for the storage of petroleum products.
Patent ES-394859-A1 (ES)
Title: Apparatus for making containers of thermoplastic sheet material
IPC: B29C51/08
Filed: 1971-09-07
Abstract: In making a container with a motif in its surface a sheet of thermoplastic material, printed with a predistorted motif, is heated and held by clamps. The heated thermoplastic material is then forced into a die by a punch provided with a resiliently biased, normally projecting stem which is repressed into the punch upon contacting (through the sheet) the closed end of the die.
Patent ES-398869-A1 (ES)
Title: Dampened locomotive bogie axle
IPC: B61F1/06
Filed: 1972-01-14
Abstract: A bogie locomotive with axles which are supported relative to the bogie frame by axle springs and which are linked to the bogie frame by linkage means while the damping of the axle spring system is effected by hydraulic damping means. Each axle side has associated therewith lateral motion abutments and hydraulic damping means which are connected to a first bearing means in the bogie and to a second bearing means in the axle bearing arrangement and which during lifting of the locomotive proportionately absorb the weight of the wheel set and the residual force of the relaxed springs.
Patent ES-407740-A1 (ES)
Title: Photopolymerizable composition
IPC: C08F283/01
Filed: 1972-10-18
Abstract: A photopolymerizable composition comprising at least one polymerizable ethylenically unsaturated material, for example, an ethylenically unsaturated monomer, and a photosensitive catalyst comprising A. AT LEAST ONE PHOTOSENSITIZER HAVING THE STRUCTURE < IMAGE > where X is >C=O, >CR1R2 or >CR3OR4, especially >C=O, R1 to R4 and hydrogen or hydrocarbyl groups, n is 0 or 1, and the groups A are hydrocarbyl or substituted hydrocarbyl groups, the groups A being aromatic or substituted aromatic when n is 1 and X is >CR1R2 and when n is 0, and B. AT LEAST ONE REDUCING AGENT, FOR EXAMPLE, AN AMINE OR A PHOSPHINE, CAPABLE OF REDUCING THE PHOTOSENSITIZER WHEN THE PHOTOSENSITIZER IS IN AN EXCITED STATE.
Patent ES-418215-A1 (ES)
Title: Prestressed concrete tanks for liquid natural gas tankers
IPC: B63B5/14
Filed: 1973-08-25
Abstract: A tank for cryogenic liquids, specifically liquid natural gas, adapted for placement within a conventional marine transportation vessel is shown. The tank is preferably cylindrical and of circular cross section and is comprised of prestressed concrete with steel heads. The tank wall is made up of a series of concrete, modular tank wall sections which are circumferentially prestressed by steel tendons and which have holes therein for through-passage of axial prestressing tendons. A steel sheath anchored to the concrete wall provides a secondary barrier against leakage of the liquid natural gas cargo within the tank. The modular wall sections are separated by concrete or steel stiffening disks. The tank is formed by alternately positioning a number of modular wall sections and stiffening disks. Flat, concrete, stiffening plates which are integral with the modular tank wall sections and are radially-axially positioned within the tank further stiffen the structure. The walls and the stiffening plates are axially prestressed and the heads are attached. The tank is supported on the annular stiffening disks which are joined to the tank wall. The tank makes efficient use of the vessels cubic and is inexpensive to construct. By preforming and prestressing the modular units and thereafter erecting them rapidly at the ship-building site or at a removed fitting out site, important economies are achieved.
Patent ES-422198-A1 (ES)
Title: Metal impact monitor
IPC: G01N29/12
Filed: 1974-01-11
Abstract: A system is disclosed which employs the energy imparted to a metal specimen by impact to detect both the rate and energy with which impacts occur. The impact energy is detected by a sensor, at the resonant frequency of a metal specimen, which provides an output representative thereof. The output of the sensor is processed to provide a first and second signal respectively corresponding to the rate and energy with which impacts occur. The energy of each impact is transformed into a pulsed output having an amplitude proportional to the impact energy level. A bandpass filter further refines the system to pass only those signals within the frequency range characteristic of metal impact thus eliminating background noise which might otherwise obscure the impact response. Additional peak detecting means associated with the second signal provides an indication of the maximum impact energy sustained by the metal specimen over a predetermined period of time.
Patent ES-422408-A1 (ES)
Title: Device for statilization of an appliance
IPC: B66C23/80
Filed: 1974-01-18
Abstract: A device for stabilization of an appliance having a chassis comprising a telescopic beam adapted to be fixed to the chassis, a telescopic arm pivotally connected to the beam and carrying a stabilization support, means for telescoping the arm and beam, and means for adjusting the relative angular position of the arm and beam and permitting first and second extreme angular positions corresponding to orientations of the telescopic movement of the arm which are respectively vertical and at an inclination to the vertical.
Patent ES-433344-A1 (ES)
Title: Method and apparatus for extracting ions from a partially ionized plasma using a magnetic field gradient
IPC: B01D59/34
Filed: 1974-12-26
Abstract: Method and apparatus for separating selectively ionized particles from a plasma of moving particles by application of a magnetic field gradient in a direction to which the ionized particles are to be accelerated for collection. By creating conditions of adiabatic particle motion for charged particles in the magnetic field, the selectively ionized particles will be induced to follow the magnetic field lines in the direction of weaker field strength. The direction of this gradient is made different from the general direction of particle motion to permit extraction of the ions from the plasma. The extracted ions deposit on a collection surface in enriched proportions.
Patent ES-437390-A1 (ES)
Title: Method of calcining coke in a rotary kiln
IPC: C10B57/00
Filed: 1975-05-02
Abstract: In the calcination of petroleum coke in a rotary kiln, procedure wherein air is controllably supplied internally of the kiln to burn the removed volatiles, as by selection or adjustment of the amount of such air and of the speed of coke travel down the kiln, so that all or nearly all of the heat for calcining the coke is provided by such combustion, and so that a suitably high temperature is reached for effective calcination at an efficiently large feed rate of coke, a special feature being to maintain a significantly long travel time of the coke from a region of intense calcining activity to the product discharge end of the kiln. High production rates, of coke calcined well and uniformly, are economically attained, with ease of control and with unusual stability of kiln operation.
Patent ES-437938-A1 (ES)
Title: Alumina removal from chromate leach liquors
IPC: C01F7/141
Filed: 1975-05-26
Abstract: This invention relates to an improvement in the method for removing dissolved aluminate from alkaline chromate leach liquor by acidification of the leach liquor to precipitate alumina hydrate which comprises, in combination, passing the leach liquor sequentially through a series of at least two agitated vessels, maintaining the liquor at a temperature of at least about 90 DEG C., and adding acidifying agent to said vessels in amount sufficient to establish gradually decreasing pH levels in the liquor from vessel to vessel in the direction of liquor flow such that the pH in the vessel through which the liquor passes first is maintained within the range of from 10 to 13.5, and the pH in the vessel through which the liquor passes last is maintained within the range of from 6 to 9.5, so that the precipitated alumina hydrate comprises predominantly alumina trihydrate in easily filterable form.
Patent ES-439554-A1 (ES)
Title: Treatment of edible seeds and foodstuff prepared therefrom
Inventor: LEWIS VICTOR M DR
IPC: A23L7/196
Filed: 1975-07-17
Abstract: Seeds, in particular grain and pulses are processed to give tasty foodstuffs by, first of all, partly softening them to prevent their disintegration under the effect of pressure. Then they are subjected to a pressure to generate cracks and tears and are impregnated with an aromatic additive which rapidly penetrates through the cracks and tears. The product is suitable, for example, as a high-quality meat extender.
Patent ES-442039-A1 (ES)
Title: Steam generating system and method utilizing exhaust gas recirculation
IPC: F23C9/08
Filed: 1975-10-23
Abstract: A steam generating system and method in which a portion of the exhaust gases from a furnace section is passed through a duct system back into the furnace section to reduce the temperature in the furnace section. Air at ambient temperature is also passed directly into the duct system for cooling the exhaust gases before they are passed to the furnace section.
Patent ES-442871-A1 (ES)
Title: Process for making hydrophilic polyolefin fibers containing clay
IPC: D01F6/04
Filed: 1975-11-21
Abstract: Hydrophilic polyolefin fibers containing more than 50% by weight of clay are obtained by passing a mixture, which is kept under pressure and consists of a polyolefin, a solvent for the said polyolefin, clay, a hydrophilization agent, water and an amine, through a nozzle into a zone of low pressure. The fibers obtained can be used, with small expenditure for working up, for the manufacture of synthetic paper.
Patent ES-447553-A1 (ES)
Title: Method and apparatus for the production of quality steels
IPC: C21C7/10
Filed: 1976-05-03
Abstract: A method for producing steels within a very close analysis tolerance in which the raw materials are melted down in a first vessel, the melt is then tapped into a second vessel in which deslagging is accomplished, and thereafter the melt is subjected to treatment under a vacuum. An apparatus for carrying out the method is also described.
Patent ES-450273-A1 (ES)
Title: Coating compositions containing a mixture of a tetrafluoroethylene polymer an aromatic polyethersulfone
IPC: C08J3/02
Filed: 1976-07-29
Abstract: A coating composition comprises a dispersion of a fluorocarbon polymer in an inert diluent having dissolved, or preferably dispersed, therein a low molecular weight (RV less than 0.25) polyethersulphone or precursor thereto.