baber/WOPTO huggingface dataset:
Patent ES-254953-A1 (ES)
Title: Method of making polyurethane thread and thread produced by such method
IPC: D01F6/72
Filed: 1960-01-13
Abstract: A method of making a prepolymer comprises heating, at a temperature of 90 DEG -100 DEG C. for a period of from 90-120 minutes, a mixture of a polyester derived from a glycol and a dicarboxylic acid, said polyester having a molecular weight of from 500 to 5,000 and an acid value less than 6, with from 1,8-2,1 moles of an aromatic diisocynate, until the reaction is substantially complete, as evidenced by the fact that a substantially constant viscosity is achieved, to form a soluble, uncured, liquid material which is an essentially linear polyurethane having terminal isocyanate groups, and thereafter heating such linear polyurethane in an inert atmosphere at a temperature of 90 DEG -100 DEG C. for a period of from 48-196 hours, to provide a liquid, uncured, essentially linear, soluble polyurethane having terminal isocyanate groups, which is capable of being cured in the form of a thread, by subsequent curing action of an aliphatic diamine and water, characterized by a permanent set of from 2%-10%. The conversion to a solid thread is effected in two stages, the diamine first reacting to form a composite thread having a fluid core of uncured prepolymer and an outer shell cured to the solid state. The action of water, preferably under pressure, e.g. 50-150 pounds per square inch causes the liquid core to set. Suitable diamines are ethylene diamine, hexamethylene diamine, 1, 4-diamino-cyclohexane, 3, 31-diamino-dipropyl ether and diaminodibutyl sulphide. Preferably the setting bath also contains an anionic or nonionic wetting agent. In Examples (1) a polyester (M.W. 2070) from adipic acid, ethylene glycol and 1, 2-propylene glycol was reacted with methylene bis (p-phenylene diisocyanate) for 48 hours at 90 DEG -95 DEG C. in a nitrogen atmosphere. The prepolymer was extruded into a 3% aqueous ethylene diamine bath at 135 DEG F. and then cured in a water bath at 140 DEG F. and 100 lbs. per square inch pressure. The product had a permanent set of 4% (2) for comparison a thread in which the heating of the prepolymer reaction mixture lasted six hours was prepared and was found to have a permanent set of 38%. Other examples illustrate prepolymer heating times of 48, 120 and 170 hours, and for comparison, 1 1/2 , 6 and 24 hours. Reference has been directed by the Comptroller to Specification 847,673.
Patent ES-268392-A1 (ES)
Title: Pigments of the anthraquinone series
IPC: C09B1/43
Filed: 1961-06-06
Abstract: Yellow anthraquinone pigments are made by heating o-phthaloyl dichloride with a mixture of different aminoanthraquinones containing at least 65% of 1-aminoanthraquinone, the molar ratio of phthaloyl dichloride to aminoanthraquinone mixture being within the range of about 1:1,5 to 1:2. Aminoanthraquinones other than 1-aminoanthraquinone which may be used are 2-amino-, 1:5-amino-chloro-, 1:8-amino-chloro-, 1:2-, 1:5- or 1:8-diamino- or 1-amino-5-benzoylamino-anthraquinones and mixtures of 1:6- and 1:7- or of 1:5- and 1:8-diamino-anthraquinones. Examples are given.
Patent ES-274178-A1 (ES)
Title: Improvements in or relating to control systems for a multi-effect evaporator
IPC: B01D1/00
Filed: 1962-01-30
Abstract: <PICT:0928470/III/1> In a multi-effect evaporator system, for concentrating aqueous solutions continuously, the sub-atmospheric pressure in the final effect 4 is automatically controlled by a pressure recordercontroller PRC4 and the flow of aqueous solution into, and the flow of concentrate out of, the final effect are automatically controlled by a temperature recorder-controller TRC4 and a liquid-level recorder-controller LRC4, respectively, so that a concentrate of constant composition is withdrawn from the system. A vacuum is applied to the final effect and the pressure within it is maintained constant by an air-bleed 11 controlled by a differential pressure cell PRC4. The temperature of the boiling liquid in the down-corner of the final effect is measured by platinum resistance thermometer 14. When controller TRC4 indicates that the desired solute concentration has been reached, valve 12 is opened and concentrate flows out of the system through line 13. At the same time, controller LRC4 causes valve 10 to open, and solution flows from effect 3 into effect 4. The concentration of solution in effect 4 is thus decreased and its boiling temperature drops so that controller TRC4 causes valve 12 to close again. When the liquid-level in effect 4 is restored to its predetermined valve, valve 10 will be closed by controller LRC4. The concentration of aqueous uranyl nitrate solution is referred to.
Patent ES-320955-A1 (ES)
Title: Method of applying liquid addendum to opposite surfaces of a continuous multifilament tow
IPC: D04H3/14
Filed: 1965-12-20
Abstract: A cylindrical tobacco smoke filter rod is made from a tow of crimped continuous filamentse.g. of a denier less than 3 - by forming the tow into a band or ribbon, subjecting the band to tension sufficient to remove the secondary crimps therefrom, separating the filaments by longitudinally displacing portions of the tow with respect to adjacent portions, spreading the tow to a uniform constant width by means of a banding jet supplied with high velocity gas, applying a thin uniform coating of plasticizer to one or both surfaces of the spread tow, further separating the filaments and uniformly distributing the plasticizer therein by means of a gas jet and finally shaping the tow into a cylindrical form in which the filaments are fused to one another at random points by the action of a plasticizer. The filaments are displaced longitudinally by being passed between a bottom resilient surfaced roller and a top grooved roller pneumatically pressed against the bottom roller. The top roller has continuous or interrupted circumferential square-form cross-section grooves. The plasticizer is applied by means of rotating rollers -Fig. 2 (not shown) - which ares supplied with the liquid plasticizer by means of wicks connected to a plasticizer reservoir fed by a metering pump. The plasticizer may be triacetin, if the filaments are composed of cellulose acetate. To increase the removal of the phenol component from tobacco smoke, a high molecular weight polyethylene glycol liquid additive may be used to coat one side of the tow instead of the plasticizer. After the plasticizer has been uniformly distributed in the tow but before the cylindrical rod is formed particulate material - e.g. activated carbon, sodium bicarbonate, rice starch, cellulose acetate floc - may be added to the tow.
Patent ES-333428-A1 (ES)
Title: Carbon-dioxide cooled,graphitemoderated nuclear reactor
IPC: G21C15/28
Filed: 1966-11-16
Abstract: A carbon dioxide-cooled, graphite-moderated reactor has incorporated in the coolant circuit a catalyst to promote in the presence of excess carbon dioxide the reaction between carbon monoxide and hydrogen to produce methane. The coolant contains methane in order to inhibit the graphite-carbon dioxide reaction. Radiolysis of the coolant still occurs however, three main products being carbon monoxide, water and hydrogen. The major methane-producing reactions promoted by a catalyst are In the presence of a suitable catalyst the water formed will react with further quantities of carbon monoxide in accordance with the equation: The hydrogen so formed reacts with more carbon monoxide to produce methane. Accordingly, the methanation catalyst may be mixed with or preceded by a catalyst, e.g. zinc/ copper or chromium-promoted iron, to promote the above carbon monoxide-water reaction, or a methanation catalyst may be selected which will also promote the above carbon monoxidewater reaction. A suitable methanation catalyst is nickel on a support such as chromia or kieselguhr. The catalyst or catalysts are conveniently installed at the outlet of the heat exchangers for the r actor coolant. Since nickel catalysts are poisoned by sulphur it may be desirable to desulphurize the coolant just prior to the catalyst bed or beds. Zinc oxide may be used as an absorbent for this purpose. Instead of adding methane to the coolant to inhibit the graphitecarbon dioxide reaction, water may be added. The water is converted to methane by passing through the catalyst or catalysts with reactor coolant which contains carbon monoxide. Further the catalysts may be used to control the carbon monoxide content of the coolant by providing a quantitative oxygen feed into the coolant system prior to a catalyst bed.
Patent ES-338704-A1 (ES)
Title: Casting apparatus
IPC: B22D18/04
Filed: 1967-03-31
Abstract: An adjustable mould 10 for casting slabs, billets or blooms comprises side blocks 14, a bottom block 18, a top block 16 raised and lowered by supports 30, a front ingate assembly 24 and a rear block 20 carried by a lifting mechanism 56 and movable by hydraulic or pneumatic cylinders 44 to position the said rear block 20 for the desired length of slab. The rear block 20 is raised out of contact with the bottom block 18 by a spring mounted connecting member 82 to prevent wear on the blocks, the rear block 20 being pushed down into contact with the bottom block 18 by lowering the top block 16 when the rear block 20 is in its desired position. The lifting mechanism moves on a roller 98, or alternatively a spring biased slide, and the cylinders 44 may be replaced by motor driven screw devices. The ingate assembly 24 is arranged to receive a pressure pouring tube 102. The blocks 14, 16, 18, 20 may be made of graphite and the block 20 has a vent block 34 arranged thereon.
Patent ES-342612-A1 (ES)
Title: Auxiliary overdrive gear
IPC: F16H61/02
Filed: 1967-07-04
Abstract: An overdrive gear unit comprises a threeelement epicyclic gear controlled by a disc clutch-brake unit of which the clutch 15 is normally engaged by loading springs 27 to lock the sun-wheel 12 and the planet carrier 21 for direct drive, the brake 22 being engageable to hold the sun-wheel for overdrive through the planets 9 and annulus 10. The brake is controlled by a pneumatic piston 28, loaded by return springs 35, to effect a progressive change of drive. A light spring 29 urges the clutch-- brake unit to the left to avoid frictional drag from the brake reaction plate 26 during direct drive. In a modification, Fig. 4 (not shown), the planet pins (81) are lengthened to drivingly engage one set of clutch discs (14) and the brake operating piston incorporates a diaphragm (341).
Patent ES-342984-A1 (ES)
Title: Television receiver a.g.c. and a.f.c. circuits including cascaded amplifiers with distinct outputs
IPC: H04N9/68
Filed: 1967-07-13
Abstract: The invention relates to television receivers comprising circuits for producing a first signal for automatic gain control (A.G.C.) and in addition a signal for automatic frequency control (A.F.C.). In a first embodiment, the receiver comprises initial R.F. and mixer stages 4 and first I.F.. amplifying stages 5 common to both sound and vision channels, after which the channels separate, the sound I.F. passing to a sound channel 3 in which it is converted into an intercarrier signal which is amplified and frequency demodulated for application to a loud-speaker 8. The vision channel comprises a last I.F. transformer 10, sound I.F. filter 11 and detector 12, from which a first A.G.C. is derived via gate 15 and applied to the stages 4, 5. The output of detector 12 is also fed via cascaded video amplifiers 13, 21, the first of which is of variable gain, to the cathode of the picture tube 22 the output of amplifier 13 is also fed to an amplifier 20, the gain of which is manually adjustable by means of variable resistor 33, e.g. a cathode or emitter circuit bias resistor. The output of amplifier 20 is fed to a phase discriminator 27 which derives a second input comprising the intercarrier signal produced in diode 28 in sound channel 3, as disclosed in Specification 1,062,195. Phase discriminator 27 feeds an A.F.C. voltage via lead 32 to control the frequency of the local oscillator in R.F. and mixer stage 4. The output of amplifier 20 is also fed to device 24 which produces a second A.G.C. voltage which is applied via lead 25 to control the gain of video amplifier 13 because of this gaincontrol loop, adjustment of manual control 33 to vary the gain of amplifier 20 causes the gain of amplifier 13 to vary in an opposite manner, so providing contrast control the overall gain to the A.F.C. line 26 and hence the automatic frequency control is, however, unaffected. In a second embodiment (Fig. 2, not shown), a similar arrangement, comprising manual gain control of a second amplifier stage within a gain-control loop in which the gain of a first amplifier stage is automatically controlled, is utilized in a colour television receiver to provide manual control of (1) the contrast, and (2) the saturation without affecting the colour demodulation circuits.
Patent ES-346149-A1 (ES)
Title: Catalytic process for the polymerization of olefins
IPC: C08F4/64
Filed: 1967-10-17
Abstract: The invention comprises organo-titanium compounds of formula (R 2 T 1 (-OZO-)] 2 , where R is alkyl and Z is (CH 2 ) m (m being 2, 3 or 4) or a derivative thereof in which one or more H atoms is replaced by an alkyl group. The compounds may be prepared by reacting a titanium dihalide X 2 T i (-OZO-) with RMgX or R 2 Mg, where R is alkyl and X is halogen. The titanium dihalides are made by treating a titanium tetrahalide with the diol HO-Z-OH or with a compound of formula Ti(-OZO-) 2 . Examples describe the preparation of butane-1,3- diol-titanium dichloride and 2-methylpentane- 2,4-diol-titanium dichloride and their conversion into the dimer of 2-methylpentane-2,4-dioltitanium-dimethyl and the dimer of butane-1,3- diol-titanium-dimethyl respectively. The organo-titanium compounds, when mixed with metal halides form olefin polymerization catalysts (see Division C3).
Patent ES-347340-A1 (ES)
Title: Fiber drafting system
IPC: D01H5/26
Filed: 1967-11-18
Abstract: In textile drafting apparatus having upper and lower aprons each passing about a nose bar and a roller, one of the nose bars, e.g. the lower one, 19, is provided with spring clips to restrict lateral movement of apron 20. The clips 21, 22, (see also Fig. 4, not shown), comprise upper and lower hooks 23, 24 for engaging the nose bar and a portion 25 at right angles to the main part of the clip for guiding the edge of the apron. The arrangement is particularly suitable when a long lower apron with its tensioning roller is replaced by a short apron. The clip may be of spring steel, polyethylene, polystyrene, polycarbonate or acetal.
Patent ES-353160-A1 (ES)
Title: Epoxy Resin Adhesive Composition.
IPC: C09J163/02
Filed: 1968-04-25
Abstract: An epoxy resin adhesive comprises: 15-60% by wt. of a glycidyl polyether of a dihydric phenol 25-70% by weight of a filler (e.g. calc, silica, dolomite, anhydrous CaSO 4 or aluminium silicate) 1-7% by wt. of a flexibilizer chosen from polyvinyl methyl ether, rosin ester, solid polyamide resin or a butadienestyrene copolymer the composition is cured with a mixture of a flexibilizing amine hardener which has a straight chain of 3-10 carbon groups with 2 to 5 carbon atoms per group, an ether link between the groups and an amine group on each end of the chain (e.g. and a rigidifying tertiary amine catalyst, e.g. tris - (dimethylaminomethyl) phenol. The hardener is employed in approximately stoichiometric amounts and comprises 70-50% of hardener and 30-50% of catalyst. The composition may also contain a coal tar fraction having a boiling point of 500-900 F. in an amount of 20-40% by wt. of the composition.
Patent ES-356133-A1 (ES)
Title: Process for weakening the hydrophobic behavior of alkene polymers
IPC: C08K5/103
Filed: 1968-07-12
Abstract: The hydrophobic character of alkene polymers (and copolymers) which may be applied as a coating on paper is lessened by mixing the polymer with from 0.05 to 2% by weight of a mono-ester or diester of a hexavalent, partly dehydrated alcohol and C 12 -C 22 aliphatic carboxylic acid, and from 0.01 to 0.5% by weight of an amide of a C 12 -C 22 aliphatic carboxylic acid. Polymers: polyethylene, polypropylene, poly (4-methylpentene-1), copolymers of ethylene and propylene with one another, or with butylene-1, pentylene-1, hexylene- 1 and octylene-1, and copolymers of ethylene with vinyl acetate and methyl acrylate. Esters: esters of partly dehydrated hexitols such as mannitan or sorbitan, with saturated or unsaturated fatty acids such as lauric, palmitic, stearic, oleic or erucic acid. Amides: amides of saturated or unsaturated C 12 -C 22 fatty acids such as lauric, palmitic, stearic, oleic or erucic acid amide. Conventional additves normally used with polyalkenes can be included also. An example demonstrates the effect on the hydrophobic character of low density polyethylene of 0.3% of sorbitan monolaurate and 0.05% oleic acid amide.
Patent ES-358601-A1 (ES)
Title: Sewing machine
IPC: D05B77/00
Filed: 1968-09-27
Abstract: A sewing machine has a base 6 and a lower free arm 2 which is slidably mounted in the base so that the machine can be used as a free arm machine or a normal machine in which condition the horizontal surfaces 10 complement the surface 11 on the free arm 2. Projections set in the free arm 2 extend downwardly through an elongated slot in the base. Flaps 15, 16 are provided to form either a sloping ramp or when upwardly pivoted with a further flap 23 form a carrying case. A pivoted handle is provided hinged to the upper part of the frame. Reference has been directed by the Comptroller to Specification 1,131,710.
Patent ES-366698-A1 (ES)
Title: Ignition arrangment for internal combustion engines
IPC: F02P1/08
Filed: 1969-05-02
Abstract: The invention relates to a capacitor discharge ignition system in which a capacitor 24 is dischargeable by way of the primary winding 16 of an ignition transformer by means of an electronic switch 23. There is provided a composite iron core 10 which carries a charging winding 12 for charging the capacitor, on a first limb and a control winding 14 on a second limb for controlling the electronic switch. A magnet 19 is associated with the core to produce voltages in the windings upon relative rotation between the magnet and the core. The electronic switch 23 may be a thyristor or may incorporate thermionic valves or semiconductor components such as transistors or diodes. It is stated that an automatic ignition advance is obtained.
Patent ES-371871-A1 (ES)
Title: Railway vehicle centre coupling return mechanism - has return spring in cylinder housing to move sliding stop on bolt
IPC: B61G7/12
Filed: 1969-09-25
Abstract: A pressure transfer mechanism and stop toggle are used in conjunction with a return spring for horizontal central return positioning of a centre coupling on railway rolling-stock. - The pressure devices have cylinder housings (11), detachably fastened to the hinge attachment housing (24) via two bolts (17,18), in each case, passing in tandem through lateral eyes in the cylinder housing. The return spring (12) is mounted in the latter, to displace the pressure transfer member, which is a sliding piece (13). The stop toggle (19) is fitted on the bolt (18) nearest to this. Return springs can be easily replaced, without dismantling the hinge attachment housing.(DS).
Patent ES-372280-A1 (ES)
Title: Improvements in or relating to a reamer bit
IPC: E21B10/26
Filed: 1969-09-25
Abstract: A reamer bit comprises a body 1 connected to a drill rod 3 and resilient elements 4 bendable to lie along the body. The bit is inserted in a borehole and rotated so that the elements 4 resiliently engage the walls and produce a local enlarging Figs. 2-4 (not shown). Pressure fluid, which may be air, is supplied to orifices 9 in a tube 6 which may be attached to the side of the body 1 or may extend within it. The elements 4 are formed from wire rope, spring steel or nylon, and may be arranged in a spiral.
Patent ES-381107-A1 (ES)
Title: Apparatus for cutting a block of plastic material
IPC: B26D1/553
Filed: 1970-06-24
Abstract: Apparatus for cutting a block of material in a plastic state, more particularly light weight concrete, comprising a plurality of supports which extend transversely of a cutting direction and whose upper surfaces are formed with a plurality of projections a plurality of rods extending in the cutting direction and loosely spaced out one beside the other between the projections, for carrying the block and a number of cutting wires. The parts of the block disposed at a cutting wire width from one another cannot be pushed against one another, as is needed for cutting the parts of the block in a direction transverse of the cutting already performed, to prevent the tearing and crumbling of the parts of the block during the second cutting.
Patent ES-382771-A1 (ES)
Title: Telecommunication switching systems
IPC: H04J3/14
Filed: 1970-08-14
Abstract: A time division multiplex telephone system has testing apparatus for testing the setting-up of a communication path between two subscribers before the path is switched through to the subscribers. Circuits responsive to signals emitted by the testing apparatus initiate a further attempt to set up the communication path if the testing apparatus signals that the test made on the set up connection indicate that the setting up is not successful.
Patent ES-402368-A1 (ES)
Title: Tractor counter weight assembly
IPC: B62D49/08
Filed: 1972-05-04
Abstract: A tractor counter weight assembly including weight members each having a body with a supporting lip formed thereon and a clamping portion spaced from the supporting lip. A supporting frame member on the tractor body is engageable by the supporting lip of each weight member. Clamping means on the tractor body spaced from the supporting frame engages the clamping portion of each weight member when the supporting lip thereof is engaged with the supporting frame to prevent disengagement of the lip from the supporting frame.
Patent ES-407930-A1 (ES)
Title: Overrunning brake for trailers
IPC: B60T7/20
Filed: 1972-10-24
Abstract: An overrunning brake is provided with a pull rod displaceably mounted in a pull tube, with a power transmission mechanically coupled to the pull rod for acting on the brake, and with a shock absorbing mechanism including a friction member positioned in the pull tube and prestressed for displacement between a pair of lugs. The friction member is operatively coupled to the pull rod with its friction face being forced against the pull rod.
Patent ES-421589-A1 (ES)
Title: Shaped bodies of pullulan esters and their use
IPC: A23L29/269
Filed: 1973-12-18
Abstract: Pullulan esters are prepared by the reaction of pullulan with aliphatic or aromatic fatty acids or their derivatives in the presence of suitable solvents and/or catalysers. Said pullulan esters can be shaped by compression molding or extrusion at elevated temperature or by evaporation of solvents from their solutions to form shaped bodies, such as films or coatings which are practically impermeable to atmospheric oxygen in thin layers and unaffected by oils and fats so as to provide valuable packaging materials for food, pharmaceuticals, and other oxygen sensitive materials.
Patent ES-422027-A1 (ES)
Title: Low-impact four-bar press
IPC: B30B1/14
Filed: 1974-01-04
Abstract: A low-impact four-bar press is provided having a drive mechanism which will cause the press slide to move relatively slowly throughout a metal working portion of the press stroke and relatively rapidly on the return and advance portions of the stroke. The drive arrangement includes a linkage system comprised of a first link pivotally connected between the press slide and a second link which is connected to a driven crank. A third, lazy or constraining link is pivotally connected at one end thereof to the second link and at the other end thereof to the press frame at a point between the crank axis and the path of the slide. The arrangement of the several links is such as to provide desirable kinematic and dynamic characteristics by developing a particular coupler curve at the pivot point between the first and second links.