baber/WOPTO huggingface dataset:
Patent ES-236495-A1 (ES)
Title: Process of thermally treating and lubricating polyethylene terephthalate filaments and yarns
IPC: D01F11/08
Filed: 1957-07-10
Abstract: A textile lubricant comprises an aqueous solution containing up to 20% by weight of a polyethylene oxide condensate and up to 10% by weight of an antistatic agent. The polyethylene oxide is preferably a polyethylene glycol, liquid at room temperature, with an average molecular weight between 200 and 600. Antistatic agents referred to are those known as "Lubrol" W, "Zelec" NE and "Heatex" ("Lubrol," "Zelec" and "Heatex" are Registered Trade Marks). Optional ingredients are up to 1% by weight of a boundary lubricant such as sodium stearate and, in conjunction therewith, an alkali such as sodium hydroxide, to raise the pH to 8 or 9. Filaments or yarns treated with the lubricant should have an amount of at least 0.2% by weight of the filaments of the non-aqueous components on them. They may then be treated by sliding contact with a hot metal surface, e.g. heated above 140 DEG C., it is particularly suitable for polyethylene teraphthalate. Specification 808,213 is referred to.ALSO:Filaments and yarns are treated by sliding contact with a hot metal surface in the presence of a lubricating composition comprising an aqueous solution containing up to 20% by weight of a polyethylene oxide and up to 10% by weight of a water-soluble antistatic agent. The polyethylene oxide preferably has a molecular weight of 200-600. Antistatic agents referred to are those known as "Lubrol" W, "Zelac" NE and "Heatex" "Lubrol," "Zelac" and "Heatex" are Registered Trade Marks). Optional ingredients are up to 1% of a boundary lubricant such as sodium stearate and, in conjunction therewith, sodium hydroxide to raise the pH to 8 or 9. The compositions are applied to the filaments, e.g. polyethylene terephthalate, in amounts such that the filament carries at least 0.2% by weight, based on the filament, of non-aqueous components at any stage prior to making contact with the hot metal surface. Suitable amounts of the composition are 5-20% by weight of the filament. The major proportion of the water evaporates. The treated filaments may be slid over metal plates heated to over 140 DEG C. without leaving deposits, e.g. in drawing, relaxing, crimping and heatsetting operations. Specification 808,213 is referred to.
Patent ES-303148-A1 (ES)
Title: Disc brakes
IPC: F16D55/14
Filed: 1964-08-14
Abstract: A disc brake of the kind in which relatively stationary and rotatable surfaces are frictionally engaged on axial separation of two co-operating pressure plates 10, 11 by balls working in inclined ramps of adjacent surfaces of the plates, is characterized in that the balls 18 are located in angularly spaced, axial grooves 19 of semicircular cross-section formed in the inner surface of the concentric housing 14 and engage in oppositely inclined, arcuate crosssection pockets 21, 22 at the peripheral edges of the plates' adjacent faces, each of the pockets progressively varying in depth in an axial direction and being located on the same pitch circle. The axial deeper end of each pocket is part spherical and of a radius equal to that of the ball as illustrated in Fig. 3. On induced relative angular movement of the plates 10, 11 by pull-rod 24 through linkages 26, 25, the balls will lock in the spherical pocket ends of one plate, so arresting its angular movement, and ride up the inclined pocket faces of the other plate to urge the plates apart thereby forcing rings of friction material 15, which are carried by rotatable discs 16 slidably mounted on a splined shaft (not shown), to engage the fixed housing 14 and complementary cover plate (not shown). The grooves 19 permit axial movement of the balls. Springs 23 retract the plates when the brake is released. The angular movement of the plates may be induced by other means such as a shaft-mounted cam operating between adjacent radial lugs on the plates.
Patent ES-308616-A1 (ES)
Title: Degassing a liquid
IPC: B01D19/00
Filed: 1965-01-27
Abstract: A given volume of pressurised liquid in a sealed enclosure is degassed by cooling a proportion of the liquid at the upper part of the enclosure in a first step, then all of the liquid is cooled in a second step, so as to reduce the volume occupied by the liquid and create a zone at lower pressure in which zone the liberated gas collects. In the drawing, tubular member 1 is formed by parts 3, 2 each associated with an independent cooling circuit, and has internal cooling element 29 along its axis. Liquid filling chamber 13 is first cooled by a flow of coolant through helical groove 17, then an abrupt cooling of the whole of the liquid is effected by a flow of coolant through helical ducts 20, 21 and coil 26. The liquid contracts and liberated gases collect at the top of chamber 13. Insulating sheath 29 contains thermocouples to measure the temperature of the liquid its pressure may be measured by a device connected at 12. There is reference to analysis of the gases evolved by burning them, when appropriate, using heating plug 30 at the top of chamber 13, and measuring the change in gas pressure on combustion.
Patent ES-309178-A1 (ES)
Title: Method of preparation of mixed oxides of actinides
IPC: C01G43/00
Filed: 1965-02-10
Abstract: Mixed oxides of the general formula (Uy,M1- y)O2, where M is plutonium or thorium, are prepared by compacting a powdered mixture of MO2 and U3Ox(8\sEx\sE9) into pellets without a binder, and a single stage heating in a reducing atmosphere at 250-450 DEG C., until the U3Ox is reduced to UO2, and then at 1550-1700 DEG C. until a sintered solution is formed. The ratio <FORM:1030465/C1/1> is advantageously less than 1/2 . The rate of temperature rise from the lower to the upper range may be 200 DEG C. per hour. The mixture of MO2 and U3Ox may be crushed in a ball mill using uranium balls and may then be compacted at a pressure of 5000-8000 bars. The sintered pellets may be powdered and mixed with less than 20% of the original powdered mixture, the resultant powder being compacted and heated as above under hydrogen. Crushed sintered pellets may be compacted by vibration for use as a fuel, or reduced by carbon to form (UyM1- y)C.
Patent ES-330745-A1 (ES)
Title: Spillage chute for traveling grate machine
IPC: C22B1/20
Filed: 1967-08-30
Abstract: At the discharge end of a travelling grate machine, a spillage shoot 20 and idler sprockets 5 are able to move longitudinally of the machine independently of a main frame 2. The arrangement ensures that, despite thermal expansion of a long line of abutting pallets 7, the sprockets 5 will always be in position to properly engage each pallet as it is pushed off the end of a trackway 3. Bearings 9 for the shaft 6 of the sprockets 5 are suspended by hangers 11 from a frame structure 12, the hangers being movable horizontally along rails of the structure 12. The pallets 7 discharge into a structure 8 as they are carried around by the sprockets 5 before engaging lower rails 4. A counterweight 17 operating via sheaves 14, 16, 16a and a cable 15, biases the sprockets towards the left. For receiving spillage, e.g. pellets, as the pallets move into the emptying position, a shoot 20 has runners (21) which rest on rollers (22) carried by the frame of the machine, Figs. 3-5 (not shown). The sprocket shaft (6) passes through the shoot structure with only a working clearance and longitudinal movement of the shaft imparts corresponding movement to the shoot 20 which maintains its position relative to the positions where spillage occurs. The shoot includes plates 26 which deflect the pellets for discharge through side openings (28) on to curved plates (29) and into external shoots (32).
Patent ES-342746-A1 (ES)
Title: Bellows devices
IPC: F15B15/10
Filed: 1967-07-07
Abstract: A device operable, e.g. as the joint of an artificial arm, comprises two rigid end pieces 1, 2 hinged together and having disposed therebetween at least one flexible pouch 7 supplied with fluid under pressure, the pouch or pouches being restrained from moving radially by connection to the end pieces 1, 2 at the hinge 3. Each pouch is preferably constructed of cord fabric, e.g. rayon, nylon, steel wire or glass fibre, coated and impregnated with a plastics or rubber material such as polyvinyl chloride, polyethylene, polyurethanes and polyamides. In an alternative construction. Fig. 3 (not shown), the pouches are integrally formed from, a length of a thermoplastics extrusion wherein the edges perpendicular to the hinge are sealed by heat bonding. The pouches may intercommunicate through holes 9, inlets and outlets 11 for the fluid then being provided in one or both of the end pieces. Alternatively, each pouch may be provided with an inlet/outlet 12. In a second embodiment, Fig. 4 (not shown) two pouch assemblies are disposed on opposite sides of a hinge comprising a pair of plates hinged together along mutually contacting edges and to which the radially inner edges of the pouches are clamped.
Patent ES-343946-A1 (ES)
Title: Apparatus for changing the twist of a yarn in a spinning machine
IPC: D01H4/08
Filed: 1967-07-29
Abstract: To enable S or Z twist yarns to be spun in an open end spinning device means are provided above the spinning chamber whereby fibres can be fed tangentially and selectively to the yarn forming surface in either direction. As show the lid of a spinning chamber is provided with channels 19, 20, each being capable of feeding fibres tangentially to the yarn forming surface in opposite directions. The fibres 21 coming from drafting means can be fed selectively to one of the channels by a guide member 22 which has guide channels 23, 24 and can be shifted between end positions determined by stops 25 thus to change the direction of twist the direction of rotation of the chamber is reversed and the fibres are fed down the other of the two fibre feeding channels 19, 20. The intermediate guide may have only a single channel and be movable between the two feed channels along an arcuate track, Fig. 6, not shown. In Fig. 3 not shown the chamber lid is rotatable so that the mouth of one of two channels therein can be brought into alignment with the fibres being fed from the drafting device. In Fig. 8 not shown the channels in the lid are joined by flexible tube to mouth pieces which can be brought selectively into a position to receive fibres from the drafting means. In Fig. 9 not shown a single channel in the lid leads to a curved slot in which there is a deflection which can be moved to deflect the fibres into the spinning chamber in either tangential direction.
Patent ES-344031-A1 (ES)
Title: Process for the Production of DL-Methionine Composition
IPC: C07C319/20
Filed: 1967-08-11
Abstract: A composition, suitable for use as an animal feed supplement, consisting of DL-methionine and calcium salts of phosphoric acid is prepared by forming the calcium salt of DL-methionine during the production or refining of DL-methionine, and then reacting said salt with phosphoric acid. Thus, the calcium salt may be obtained by the hydrolysis of 5-#-methylmercaptoethyl hydantoin in the presence of calcium hydroxide in an aqueous medium, preferably at 130-250 C. and 2.7-44 atm. Alternatively, crude DL-methionine may be dissolved with calcium hydroxide in an aqueous medium, which solution is then refined. The solution may be purified with active carbon or by filtration.
Patent ES-347473-A1 (ES)
Title: Audio amplifier tone control system
IPC: H03F3/185
Filed: 1967-11-22
Abstract: In an amplifier system having a source of A.C. signals 1 and an input equalization and frequency response shaping network 4 connected to a field-effect transistor F, an A.C. feedback path is connected between the drain 7 and the network 4 and a pair of D.C. negative feedback paths are connected between the source and drain electrodes to the gate electrode the impedance of the D.C. feedback paths being greater than that of the network 4 presented to the gate electrode. This stabilizes the D.C. flowing through the field-effect transistor without introducing unwanted addition A.C. feedback to the gate electrode. As shown an audio frequency source with a volume control 1 is fed via a tone control network 4, having treble and bass controls P 1 , P 2 , to the field-effect transistor F. A.C. negative feedback is provided via C 5 to reduce distortion and control the amplificationfrequency characteristic of the transistor. The two D.C. negative feedback paths are provided via resistors R 7 and R 6 , R 8 . In a modified amplifier (Fig. 2, not shown), the capacitor C 7 is removed and the D.C. feedback path R 6 , R 8 is connected to an additional gate electrode (311) and resistor R 8 is decoupled by a capacitor (C 8 ). The transistor F may be N or P channel junction field-effector insulated gate field-effect type. Ceramic, paper and polyester capacitors may be used in the circuit.
Patent ES-350844-A1 (ES)
Title: Isomerization catalyst and method for preparing and using same
IPC: B01J37/20
Filed: 1968-02-23
Abstract: Catalysts containing a major proportion of Al 2 O 3 and a minor proportion of a metalliferous material having hydigenatry activity selected from Groups VIA and VIII of the Periodic Table are activated by pre-forming a gaseous mixture of SO 2 and Cl 2 and contacting the catalyst therewith to increase the chlorine content thereof. SiO 2 , BeO, TiO 2 , ZrO 2 or B 2 O 3 may be associated with the Al 2 O 3 Specified metalliferous materials are Pt, Rh, Pr, Ni and W. Examples describe the chlorination of Pt on Al 2 O 3 . Additionally the catalysts may be activated with HCl, using tertiary butyl chloride as a precursor if desired.
Patent ES-353863-A1 (ES)
Title: Goods support for pallets
IPC: B65D19/38
Filed: 1968-05-07
Abstract: A side frame 1 to retain articles on a pallet 4 comprises vertical end sections 2 each with a catch 3 to engage in a socket 5 on the corners of a pallet and lever arm 7 with a shoulder 8 in engagement with a slot 9 so shaped that on movement of the lever therealong the end sections are moved relative to one another for the insertion and withdrawal of the catches in the sockets. The lower ends of the end sections 2 are connected by telescopic sections 11, 12 and may be acted upon by a spring 13 to urge the catches into a locked position. In a further embodiment, Fig. 7 (not shown), a cranked lever (7) pivoted at (21) to a member (11) of one of the end sections and connected by a link (24) pivoted at opposite ends (22) (23) to the lever (7) and the other end section (2) respectively, is movable about said pivot (21) to vary the spacing of the end sections. A U-shaped member (3) acts as the catch and has a step (3a) to lock the catch in the socket. The pallet may have wheels (Fig. 4, not shown).
Patent ES-359013-A1 (ES)
Title: Wheel cooling
IPC: C21D9/34
Filed: 1968-10-10
Abstract: A railway wheel cast from steel containing in percentage by weight:- C 0À4 to 0À85 Mn 0À5 to 0À9 Si 0À25 to 0À5 P, S not more than 0À05 each Fe balance is cooled to a temperature within the range 1250 F. to room temperature, heated to the normalizing temperature e.g. about 1700 F. and is then cooled until the entire wheel has reached 1200 F. or e. g. 1150 -1200 F., the ends of the hub section being covered with insulating material while the remainder of the wheel is allowed to cool in the atmosphere. The insulating material may be in the form of caps covering the ends of the hub section alternatively cooling may take place while the wheels are on a conveyer over which there is located a strip of material spaced slightly above the upper end of the hub section. Additionally in this latter method a heating element, induction coil or gas flame may be incorporated in the cover strip to retard cooling of the hub.
Patent ES-366492-A1 (ES)
Title: Improvements relating to brake systems
IPC: B60T8/42
Filed: 1969-04-26
Abstract: An anti-skid device 3, for an hydraulic brake system, inserted in a line between master and slave cylinders, comprises a check valve 9 which is normally held open, but which when closed isolates a master pressure chamber 5 connected to a master cylinder via a line 1 from a slave pressure chamber 6 connected to a slave cylinder via line 2, a floating piston 7, of which opposite faces are exposed respectively to the master and slave pressure chambers, for operating the valve 9 and a servo-device 16, comprising a diaphragm piston 17 responsive to wheel lock, to move the piston toward chamber 5 to seat the valve 9 and hence release the brake. Wheel lock is sensed by a sensor which actuates a solenoid valve to connect to atmosphere a chamber 19 which was previously placed under vacuum. In a modification the floating piston is a solid plunger.
Patent ES-367569-A1 (ES)
Title: Electrical contact brushes
IPC: H02K13/00
Filed: 1969-05-22
Abstract: A contact brush of carbon and metal carries a sintered layer of metal (e.g. copper or iron or an alloy thereof) to which a flexible lead is attached, the sintered layer being of higher tensile strength than the brush material and the area of its joint with the -brush being preferably greater than that of the flexible lead. The lead may be attached by welding, e.g. pressure resistance welding, or by soldering or by tamping a metal powder in a cavity around it. The brush may consist of graphite mixed with from 25 to 95% of metal consisting of copper with which may be mixed lead, tin, zinc, manganese or silver, or a mixture thereof, up to a total of 16% of the whole mixture. Small amounts of abrasive or solid lubricant (molybdenum disulphide, p.t.f.e., stearic acid, zinc stearate) may be included. This mixture may be sintered simultaneously with a layer of metal powder to formthe metal layer on the brush.
Patent ES-369777-A1 (ES)
Title: Textile sizing composition
IPC: D06M15/333
Filed: 1969-07-22
Abstract: A sizing composition for yarns of nylon, polyester, polyacrylics and cellulose acetate is prepared by slurrying polyvinyl alcohol in water at a temperature of from 10 to 30 C. for 10-20 minutes, adding polyacrylic acid and heating the mixture to a temperature of from 65 to 85 C. adding water-soluble pine oil (stabilizer) and then cooking the combined mixture at a temperature of from 75 to 95 C. for 20-40 minutes. The polyvinyl alcohol should have a viscosity of from 15 to 25 centipoises and a degree of hydrolysis of from 84 to 100%, and the acrylic acid a molecular weight between 25,000 and 100,000. Conventional additives such as flame retardants, softeners, penetrants and plasticizers may be incorporated in the composition.
Patent ES-371092-A1 (ES)
Title: Process for producing sponge iron
IPC: C21B13/08
Filed: 1969-09-01
Abstract: Fine sponge iron particles are mixed with iron ore and the mixture is then sintered before being charged to a kiln for reduction into sponge iron.
Patent ES-380731-A1 (ES)
Title: Hydraulic upflow classification apparatus
IPC: B03B5/66
Filed: 1970-06-13
Abstract: A valve for controlling the upflow rate of water supplied under pressure from a header 25 to a teeter bed in a hydraulic classifier (see Divisions B1-B2) comprises a tubular valve body 27 having an annular recess 29 at its upper peripheral end for receiving an 0-ring 30 which provides a seat for a spring-loaded closure plate 31. The body 27 and the plate 31 may be made of plastics material. The seating pressure exerted by the coil spring 32 is adjustable by loosening the lock nut 34, lifting the valve plate off its seat against the spring pressure, turning the valve plate up or down upon the thread of the bolt 33 and tightening the lock nut back against the valve plate.
Patent ES-396232-A1 (ES)
Title: Triazolylthiophosphoric acid esters
IPC: C07D249/12
Filed: 1971-10-21
Abstract: Compounds of the formula WHEREIN R1 represents a lower alkyl radical, a cycloalkyl radical, or a phenyl radical optionally substituted by chlorine and/or bromine, OF THE SYMBOLS R2 and R3 any one represents hydrogen, a lower alkyl radical, a cycloalkyl radical, a phenyl radical optionally substituted by chlorine, and the other then represents the radical:
Patent ES-399270-A1 (ES)
Title: Fastenings and corner joints
IPC: F16B7/00
Filed: 1972-01-28
Abstract: Corner joint is formed among three structural members by positioning two of the members against each other and positioning a third member in abutting relationship to the first two members. A three-armed connecting member or bracket is located against stop surfaces on the members and secured thereto so that the three members are ridgedly held in fixed relationship to each other. Improved fastening in accordance with the invention is formed by positioning a fastening member or connector member between two opposed surfaces of another member such as a structural member for a corner joint. A sidewall on the structural member is permanently deformed into a recess in the connector member in a manner such that the connector member and the structural member cannot move relative to each other in any direction.
Patent ES-410608-A1 (ES)
Title: Production of porous ceramic materials
IPC: C04B38/06
Filed: 1973-01-13
Abstract: Porous ceramic materials are made by impregnating a foam with a slurry of finely divided ceramic material, drying and firing the foam. Prior to impregnating the foam it is treated so that the particulate material of the slurry will adhere to the foam.
Patent ES-428476-A1 (ES)
Title: Process for the anionic polymerization of pyrrolidone
IPC: C08G69/24
Filed: 1974-07-22
Abstract: Pyrrolidone is anionically polymerized in the presence of alkali pyrrolidonate as catalyst and of carbamates of metals of Groups I and II of the Mendelyeev Periodic System, or of ammonium carbamates, as activators.
Patent ES-431671-A1 (ES)
Title: Method for refining pig iron into steel
IPC: C21C5/28
Filed: 1974-11-05
Abstract: A method for refining pig iron containing usual amounts of impurities and elements in a metallurgical vessel into which at least one stream of oxygen is introduced into the body of the pig iron to form at least one reaction zone, and introducing at least one oxide of an element contained in the pig iron in an amount sufficient to saturate the reaction zone with said oxide and thereby promote the oxidation of all other elements contained in the pig iron to the exclusion of the element whose oxide is introduced.
Patent ES-436961-A1 (ES)
Title: Recycling process for the preparation of cyclohexanone oxime
IPC: C07C67/00
Filed: 1975-04-25
Abstract: Cyclohexanone oxime is obtained by circulating an acidic, buffered, aqueous reaction medium between a hydroxylammonium salt synthesis zone and a cyclohexanone oxime synthesis zone. After the circulated liquid is removed from the cyclohexanone oxime synthesis zone, but before it enters the hydroxylammonium salt synthesis zone, it is heated partially and/or regularly in contact with nitrous gases at a temperature of at least 120 DEG C under a pressure of more than 1 at abs. The reaction medium contains an ammonium salt as buffer salt. The hydroxylammonium ions are formed in the synthesis zone in question by catalytic reduction of nitrate ions, while the cyclohexanone oxime is formed in the synthesis zone in question by reacting the above hydroxylammonium ions with cyclohexanone.
Patent ES-437382-A1 (ES)
Title: Sulfo-containing phenol-formaldehyde condensates
IPC: C04B24/22
Filed: 1975-05-02
Abstract: Spreadability and/or strength of water-setting inorganic bonding compositions are improved by incorporating in them a water-soluble condensation product of formaldehyde with a diphenol < IMAGE > The condensation can also take place in the presence of a water-soluble sulfite, a water-soluble sulfamate, a water-soluble pyrosulfite, a phenol sulfonic acid or a naphthalene sulfonic acid.