baber/WOPTO huggingface dataset:
Patent ES-336803-A1 (ES)
Title: Low temperature separation of gases utilizing two distillation columns having a common condenser-evaporator
IPC: F25J3/02
Filed: 1967-02-14
Abstract: In a process for separating a gas mixture into at least three components A, B, C comprising feeding compressed mixture into a first rectification column from the base at which a product A is withdrawn whilst a mixture stream is transferred to a second column from which products B and C are withdrawn, a portion of the reflux and reboil for each column is provided by a separate heat pump cycle for each column and the two columns are thermally linked together by a common condenserevaporator for transferring heat from the first to the second column in providing the remainder of the reflux for the first column and reboil for the second column. The heat pump cycles may be open or closed. Fig. 1 shows two closed cycles. That of the first column 11 comprises a compressor 14 which discharges refrigerant vapour through the reboiler 15 of column 11. The resulting condensed refrigerant is expanded at 16 and is evaporated in a reflux condenser 17 traversed by components B and C withdrawn from the head of column 11 and returned through a line 39 as reflux the sovaporized refrigerant being returned to the compressor 14. The heat pump cycle for the second column 12 comprises a compressor 22, a reboiler 23 for said column 12, an expansion valve 24, and reflux condenser 25 from which refrigerant vapour is returned through a line 29 to the compressor 22. Liquid products A, B are withdrawn through lines 31, 35 and gaseous product C through a line 37. Fig. 2 shows two open heat pump cycles, that of column 11 being component B having been withdrawn from column 12 through a line 21, compressed at 14, condensed in reboiler 15 of column 11 expanded at 16 and returned as liquid to column 12 near the withdrawal line 21 and the evaporatorcondenser 13 thereby providing reflux for column 11. The cycle for column 12 comprises a portion of product C discharged from the head of column 12 and which is compressed at 22, condensed in the reboiler 23 of column 12, expanded at 24 and supplied as reflux to column 12 through a line 28. The heat cycles merely effect transfer of heat and effective refrigerator necessary to meet cold losses is provided by withdrawing a portion of component C leaving compressor 22 work-expanding it in a turbine 42, cooling at 44 liquid component B having left reboiler 15 and returning the so-warmed enbonded component 22. The feed stream admitted through a line 30 includes a small proportion of a fourth component D having a boiling-point below that of C and is withdrawn in admixture with C from the head of column 11. Argon may be separated from admixture with hydrogen, nitrogen and methane or carbon monoxide may be separated from admixture with hydrogen, nitrogen and methane.
Patent ES-354660-A1 (ES)
Title: Production of formaldehyde
IPC: C07C47/055
Filed: 1968-06-04
Abstract: A process for the production of formaldehyde in the gas phase by reaction of methanol with oxygen, in the presence or absence of steam, at temperatures of from 600-800 C. in contact with silver crystals arranged as a two-layer catalyst, the lower layer consisting of coarser particles than the upper layer, wherein the lower layer has a thickness of from 15-40 mm. and at least 50% of the crystals have particle sizes from 1À0 to 4À0 mm., and the upper layer has a thickness of 0À75 to 3À0 mm. and consists of crystals having particle sizes of from 0À1 to 0À9 mm., and wherein this catalyst is loaded with 1À5 to 3 metric tons of methanol per square metre of the cross-section of the catalyst bed per hour. Preferably, the catalyst loading is 2 to 3 metric tons of methanol per square metre of the catalyst bed per hour, and the process is carried out at a temperature of 650-750 C. The catalyst bed is suitably at least 0À5 metre in diameter. An oxygen methanol molar ratio of 0À3: 0À6 and a methanol conversion of 90- 97% are preferred. If the reaction is performed in the presence of steam then a 40-70% aqueous solution of methanol may be used.
Patent ES-356708-A1 (ES)
Title: Manufacture of slates
IPC: B28D1/32
Filed: 1968-07-31
Abstract: A. slate chamfering machine comprises a feeding means for effecting relative movement between a rectangular slate 2 and a rotatable cutting tool 6a in a direction substantially parallel to the axis of rotation of the cutting tool whereby the whole length of an edge of the slate is roughly chamfered. The feeding means is in the form of a conveyer belt 1 passing over rollers 60 and, in co-operation with spring loaded wheels 24, 65 mounted above the belt, causes the slate to be moved past the cutting tool 6a which is hydraulically driven so as to chamfer its edge 2a. Upon the slate passing the tool 6a, a switch is actuated causing a pneumatically ram 14, 15, to move a plate 16 into contact with the slate and thereby bring the opposite edge 2b of the slate into position to be acted upon by a second cutting tool 6b the slate is fed past the tool 6b in the same manner as described above. After the second edge 2b has been cut, the slate reaches a device 7 which turns the slate through 90 degrees. The device includes a suction cup 33, Fig. 4, adapted to be pressed into contact with the slate by means of a pneumatically-actuated lever mechanism 48, 49, a suction then being produced in the cup so as to retain the slate thereon while it is rotated, via a connecting link engaging with a pin 58. The remaining two edges 2c, 2d of the plate are chambered by cutters 6c, 6d respectively, the feeding of the slate past these cutters being as described above. In an alternative embodiment, the single conveyer belt is replaced by two belts at right angles to one another, each belt being associated with two cutting tools so that the slate does not have to be turned through 90 degrees after the first two edges are chamfered.
Patent ES-357208-A1 (ES)
Title: Agent for the post-treatment of washed laundry
IPC: C11D3/00
Filed: 1968-08-13
Abstract: Compositions for the posttreatment of washed laundry, the same being adapted for addition to the rinse water either as a solid or in liquid form comprising a softening agent corresponding to the following formula:
Patent ES-364747-A1 (ES)
Title: Process for the continuous production of a strip from powdered metal
IPC: B22F3/18
Filed: 1969-03-13
Abstract: A process is provided for rolling metal strip, particularly iron or iron alloy strip, directly from powdered metal using a technique in which a self-supporting metal powder/binder strip is formed from a slurry containing the metal and binder composition, together with a hygroscopic substance on a support surface and the resultant strip is compacted by rolling and then sintered. Typical hygroscopic substances are polyhydroxy compounds such as glycerol and polyalkylene glycols and their use is found to improve the mechanical properties of the final strip.
Patent ES-369923-A1 (ES)
Title: Promotion of analgesic and sedative action with 5-bromoisatin
IPC: C07D209/38
Filed: 1969-07-26
Abstract: 5 - Bromoisatin is prepared by forming an aqueous solution of isatin at pH 9 or above, acidifying the solution to a pH of approximately 2 and brominating the isatin suspension so formed.
Patent ES-371259-A1 (ES)
Title: Laboratory reagent for assay of lactic acid
IPC: C12Q1/32
Filed: 1969-09-05
Abstract: A reagent for determining lactic acid comprises a solid, water soluble substantially anhydrous mixture of (a), lactate dehydrogenase (LDH) and glutamate-pyruvate transaminase (GPT) (b), NAD (c), as pyruvate trapping agent, glutamic acid or its alkali metal salt and (d), a buffer to maintain the pH between 7.5 and 11.0 and preferably also (e), a stabilizer for the enzymes selected from mucilagenous gum, hydroxyalkylamines, EDTA and its salts, a source of sulphate anion, and mixtures thereof and (f), a stabilizing-bulking agent selected from mannitol, sorbitol, lactose and polyvinyl alcohol. Other stabilizers are mentioned. A solution of the enzymes (a) and stabilizer (e) may be lyophilized and the residue mixed with the other dry components. The reagent may be packed in unit amounts in for example gelatin capsules in packages containing an alumina pellet as desiccant.
Patent ES-382309-A1 (ES)
Title: Furnace charging apparatus
IPC: C21B7/20
Filed: 1970-07-30
Abstract: A furnace charging apparatus which includes an adjustable chute for distributing the load of charging materials evenly within the furnace. The load of charging materials passes through a plurality of translatable sluices connected above the furnace inlet. The charging load falls through the sluices to a chute which is rotatable and angularly adjustable to distribute the load evenly through the furnace.
Patent ES-401949-A1 (ES)
Title: Method of opening an intermediate vessel nozzle for continuous casting
IPC: B22D11/10
Filed: 1972-04-20
Abstract: A method of and apparatus for handling liquid steel in a tundish preparatory to teeming the steel into a continuous casting mold. Initially the tundish outlet is closed with a slidable gate which has a porous plug aligned with the outlet. Inert gas is injected into the steel through this plug to agitate the steel in the region of the tundish outlet. Inert gas injection is terminated shortly before the commencement of teeming, and oxygen rich gas is injected to react exothermically with the steel in the nozzle well area. Thereafter the porous plug slidable gate is replaced with a conventional gate having a teeming opening.
Patent ES-413051-A1 (ES)
Title: Servo system for reading from a disc-shaped record carrier containing signals coded in optical form
IPC: G02B27/00
Filed: 1973-03-27
Abstract: Apparatus for reading a disc-shaped record carrier in which video and/or audio information is recorded in a preferably spiral track. This information is optically read by means of a beam of radiation which via a reflecting element transmits the information present in the scanned point of the record carrier to a read detector. The radial position of the scanning point is controlled by controlling the angular position of the reflecting element which for this purpose is included in a control loop. In order to reproduce the information at a speed different from the recording speed, for example to display slow-motion pictures or still pictures, the reflecting element may be subjected by means of a control signal to an abrupt change in angular position so that the scanning point undergoes an abrupt radial displacement. This displacement preferably takes place during the frame flyback periods of the video information.
Patent ES-416924-A1 (ES)
Title: Bottle closure arrangement
IPC: B65D47/12
Filed: 1973-07-14
Abstract: A closure arrangement with incorporated guarantee seal for the necks of bottles having two spaced annular ridges one of which is toothed, comprising a pourer body snap engageable on one of the annular ridges of the bottle and extending into the neck, a tubular sleeve engageable over the neck of the bottle and overlapping the pourer body to hold it securely in place, and a screw cap engageable on the pourer body and having a toothed band, which engages cooperating teeth on the overlapping part of the tubular sleeve, joined to the cap by a plurality of frangible stalks which form the guarantee seal and which must be ruptured before the cap can be removed.
Patent ES-426161-A1 (ES)
Title: Pipe couplings
IPC: F16L23/024
Filed: 1974-05-09
Abstract: This invention relates to high pressure pipe couplings of the kind in which one end of a bored coupling body is externally threaded to receive a rigid nut, said body and said nut each having an internal tapering surface which is in contact with an assymetrical bi-conical rigid bite-ring made of a ductile metal which is compressed by means of said ridges into circular grooves formed on the end of a pipe to be coupled, and in which the bite-ring has between its said tapering sections a central section that has a larger diameter than that of said tapering sections. In accordance with the invention, the central section of the bite-ring incorporates a circumferential sealing lip which is arranged to bear against an end face of the coupling body.
Patent ES-431560-A1 (ES)
Title: Hydrostatic piston machine having small clearances between bearing surfaces
IPC: F04B1/107
Filed: 1974-10-31
Abstract: A floating bearing ring is disposed between each bearing surface of the fixed pin and the guide member for the pistons and in spaced relation to each. The clearance of the bearing rings from the pin bearing surfaces is less than the clearance of the bearing rings from the guide member. Upon heating of the pin, the bearing rings simultaneously heat up to the same temperature to maintain their clearance. This prevents seizing of the bearing rings and, in turn, the guide member on the pin during use.
Patent ES-444388-A1 (ES)
Title: Axially retained homokinetic coupling
IPC: F16D3/207
Filed: 1976-01-16
Abstract: This tripod homokinetic coupling, intended in particular to be employed in front-wheel drive automobile vehicles, is improved in order to achieve an axial retention which is a function of the torque transmitted and thereby avoid percussions which are produced in conventional arrangements or an excessive wear.
Patent ES-447921-A1 (ES)
Title: Closure tie for tubes of film material for enclosing food, a method of forming the tie and apparatus for carrying out this method
IPC: B29C65/00
Filed: 1976-05-14
Abstract: A tube of film material for enclosing food has a closure tie with a suspension loop, the enclosure tie including the knot lying in a recess in the pleated tip of the film material. The recess in which the tie is located is formed by softening the tube by heating, for example, with warm air, infrared radiation, ultrasonic means, by previously heating the tie filament, or by treating the film material with solvents or softening agents. Apparatus is disclosed for carrying out the process.
Patent ES-448475-A1 (ES)
Title: X-ray contrast media
IPC: C07C241/00
Filed: 1976-06-02
Abstract: This invention relates to compounds having the following general formula: < IMAGE > (I) in which n is an integer from 0 to 4 R1 and R2 represent independently from each other a radical of the formula -CONHR5 in which R5 is an alkyl radical having 1-4 carbon atoms or a hydroxyalkyl radical having 1-4 carbon atoms or a radical of the formula < IMAGE > in which R6 and R7 are alkyl radicals having 1-4 carbon atoms and R3 and R4, independently from each other, represent a hydrogen atom or an alkyl radical having 1-4 carbon atoms.
Patent ES-454934-A1 (ES)
Title: Thiazolidine derivatives
IPC: A61K31/425
Filed: 1977-01-11
Abstract: 4-(Sulfamoyl-phenyl)-4-hydroxy-2-imino-thiazolidine-derivatives having salidiuretic activity and a process for their manufacture.
Patent ES-456314-A1 (ES)
Title: Fibrous materials useful as leather substitutes and consisting essentially of leather fibers, fibrils or fibrides of synthetic polymers and cellulose fibers
IPC: D04H1/65
Filed: 1977-02-25
Abstract: There are disclosed fibrous materials useful as leather substitutes and consisting essentially of the combination of leather fibers, cellulose fibers and fibrils or fibrides of synthetic polymers having a surface area larger than 1 m2/g.
Patent ES-474558-A1 (ES)
Title: Derivatives of BPTI (basic pancreatic trypsin-inhibitor), process for their preparation and their use as medicines.
IPC: C07K14/435
Filed: 1978-10-26
Abstract: Derivatives of trypsin kallikrein inhibitor from animal organs, preferably from the organs of cattle are prepared by reacting BPTI, or BPTI derivatives with free carboxyl groups, with carbodiimides followed, where appropriate, by deamidation or azo coupling with diazonium salts, and these BPTI derivatives are used as medicines, in particular medicines whose action is based on protease inhibition.
Patent ES-475951-A1 (ES)
Title: Fail-safe ignition coil dwell control system for an internal combustion engine
IPC: F02P15/00
Filed: 1978-12-13
Abstract: A fail-safe coil ingition dwell control system for an internal combustion engine of the type employing a digital ignition advance computer, wherein the computer computes ignition advance angle data and stores current dwell data. The fail-safe system detects the absence of an ignition spark, as may be caused by a computer failure, and in the event thereof produces a control signal capable of triggering the engine power element, i.e. spark plug, and includes an output switching circuit at the output thereof for switching control of the triggering of the engine power element from the computer to the signal generator circuit in the event of a computer failure.
Patent ES-476524-A1 (ES)
Title: Novel cinnamoyles piperazines and homopiperazines, the method of preparing them and their application in therapeutics
IPC: C07D325/00
Filed: 1978-12-30
Abstract: Cinnamoyl piperazine and homopiperazine derivatives which possess antiangorous activity and activities on the peripheral and cerebral circulation.
Patent ES-477455-A1 (ES)
Title: Built liquid bleaching compositions
IPC: C11D3/395
Filed: 1979-02-05
Abstract: An aqueous bleaching composition having a pH from about 11 to 14, comprising an alkali metal hypochlorite, an alkali metal orthophosphate buffer, and an alkali metal pyrophosphate builder. The buffer increases the stability of the hypochlorite formulation to be comparable to a non-built composition of equal hypochlorite content despite the solution's increased ionic strength. The builder significantly aids in soil removal during laundering operations.
Patent ES-482467-A1 (ES)
Title: Two-fluid reservoirs with application to water treatment
IPC: B01J47/02
Filed: 1979-07-13
Abstract: A reservoir for the storage of variable volumes of two liquids in pressure transmitting relation to one another comprises, in one construction, an axially symmetrical container 1 divided into two chambers by a flexible membrane 2 connected to the centre of the container wall and arranged so that the membrane lies snugly against the container wall in the extreme positions and floats freely in all mid positions. Alternatively, the membrane may take the form of a bladder secured at its apex to the container. In another construction for use with liquids which can be mixed slightly at the interface, the container is filled with a cellular structure, tubes or laminations which permit axial but not transverse movement of the liquids within the container upon variation in the relative volumes of the two liquids. Reference is made to the use of the reservoirs for recovering energy from high pressure concentrates in reverse osmosis and wet oxidation water treatment plants, and to store alternating streams in ion exchange installations.
Patent ES-486007-A1 (ES)
Title: Spiro-polycyclicimidazolidinedione derivatives
IPC: C07D491/107
Filed: 1979-11-15
Abstract: Novel spiro-polycyclicimidazolidinedione derivatives useful as aldose reductase inhibitors and as therapeutic agents for the treatment of chronic diabetic complications are disclosed. The derivatives include 2',3'-dihydro-spiro[imidazolidine-4,4'-[4'H]-naphtho[1,2-b]pyran]-2,5- dione, 2',3'-dihydro-spiro-[imidazolidine-4, 4'-[4'H]-naphtho[1,2-b]thiopyran]-2,5-dione, 1',2',3',4'-tetrahydro-spiro[imidazolidine-4,1'-benz[a]anthracene]2,5- dione, 2',3'-dihydro-spiro[imidazolidine-4,1'phenalene]-2,5-dione, 1',2',3',4'-tetrahydro-spiro[imidazolidine-4,1'-phenanthrene]-2,5-dione, the 2,1 isomers of the 2',3'-dihydro-4'H-pyran and 2',3'-dihydro-4'H-thiopyran derivatives, the 2',3'-dihydro-4'H-anthracenopyran and 2',3'-dihydro-4'H-anthracenothiopyran derivatives, the spiro-4,4' isomer of the tetrahydrophenanthrene derivative, the [b] isomer of the benzanthracene derivative and the mono or disubstituted 2',3'-dihydro-4'H-naphthopyran, 2',3'-dihydro-4'H-naphthothiopyran and tetrahydrophenanthrene derivatives.
Patent ES-8103773-A1 (ES)
Title: A slurry detergent
IPC: C11D3/37
Filed: 1980-03-05
Abstract: A slurry detergent comprises the following components: Components Wt. % water 25.0 to 80.0 a water dispersible cross-linked interpolymer of a monomeric polymerizable alpha-beta monoolefinically unsaturated lower aliphatic carboxylic acid, and a polyether of a polyol having 1 to 4 mono-saccharide units or a reduced derivative thereof in which a carbonyl group is converted to an alcohol group, and pentaerythritol, the hydroxyl groups of said polyol being etherified such that the polyol has at least two allyl or methallyl ether groups per molecule 0.1 to 3.0 sodium or potassium hydroxide dry basis 2.5 to 25.0 a non-ionic surfactant 0 to 12.0 a polyphosphate 0 to 30.0 a polyacrylate or polymethacrylate salt, dry basis 0.2 to 4.0 an anionic surfactant 0 to 10.0 an optical brightener 0 to 2.0 a crystalline sodium aluminosilicate zeolite 0 to 30.0 sodium carboxymethylcellulose 0 to 2.0 with the proviso that at least one of a non-ionic or anionic surfactant is present.
Patent ES-8101102-A1 (ES)
Title: Thermosetting powder based on an unsaturated polyester resin and process for its preparation.
IPC: C08J3/12
Filed: 1980-04-30
Abstract: A thermosetting powder based on a homogeneous mixture containing 50 to 92% by weight of an unsaturated polyester resin having a softening temperature of at least 50 DEG C. 50 to 30% bij weight of a prepolymer of a diallylester of an aromatic dicarboxylic acid, 3 to 20% by weight of a high boiling, crosslinking monomer and 0.1 to 5% by weight of hardening catalyst, all weight percentages relating to the overall quantity of the polymerizable components. A process for the preparation of the thermosetting powder by melting and mixing the polyester resin and at least the greater part of the other polymerizable components except the catalyst subsequently the catalyst and the remaining portion of the polymerizable components is rapidly admixed to the melt at a temperature that is at least 20 DEG lower than the temperature corresponding to a half life time of 1 minute in which operation the time during which the catalyst is exposed to the higher temperature is max. 30 sec. after which the mixture is rapidly cooled and ground.
Patent ES-8201476-A1 (ES)
Title: Method of marking layered glass panes and glass panes marked by this method.
IPC: B41M3/06
Filed: 1980-11-13
Abstract: 1. Method of marking panes by deposition on a surface of the pane of a composition such as an ink, characterized in that the marking is carried out by means of a composition which leaves a deposition which is practically invisible in normal light but which may be rendered temporarily visible by fluorescence so as to identify the mark by subjecting the pane to ionising radiation by means of a source emitting such radiation under suitable conditions of ambient illumination.
Patent ES-8201149-A1 (ES)
Title: Preparation of glycidyl ether
IPC: C07D303/22
Filed: 1981-01-30
Abstract: PURPOSE:To prepare the titled compound, economically, in high yield, by reacting an alcohol with an epihalohydrin in the presence of an aqueous solution of an alkaline substance and a quaternary ammonium compound having (poly)oxyalkylene group in the molecule. CONSTITUTION:The titled compound having a wide range of industrial applications as intermediates of glycerol derivatives, etc., is prepared easily, in one step from the starting materials, in high yield and an industrial scale, by reacting an alcohol with an epihalohydrin in the presence of an aqueous solution of an alkaline substance such as an alkali metal hydroxide or a weak acid salt of an alkali metal and a catalytic amount (pref. 0.01-0.1mol, based on the alcohol) of a quaternary ammonium compound of formula I or II (R1-R3 are alkyl, aralkyl or cycloalkyl A is alkylene a is an integer of >=1) b and c are an integer of >=0, and b+c>=2 X is anion) at 0-100 deg.C.