baber/WOPTO huggingface dataset:
Patent ES-337289-A1 (ES)
Title: Process for pickling iron and steel and regenerating pickle liquor
IPC: C23G3/00
Filed: 1967-02-25
Abstract: Scale and rust are removed from iron and steel by pickling in an aqueous sulphuric acid solution which is replenished to keep the acid concentration between 8% and 20% by weight of sulphuric acid, heated to between 140 DEG F. and 180 DEG F., preferably by steam jets, and agitated by the discharge of compressed air. Ferrous sulphate is allowed to build up in the solution until Fe is between 8% and 12% of it by weight, then the solution is transferred to a crystallizer and cooled to below 140 DEG F. and preferably below 80 DEG F., so that the ferrous sulphate crystallizes as ferrous sulphate heptahydrate. When the solution has been freed of the crystals so formed it is replenished with fresh acid and returned to the pickling bath. Vapours from the pickling bath may be collected and acid recovered from them and returned to the bath.ALSO:Ferrous sulphate is allowed to build up in an aqueous sulphuric acid solution in which iron and stell are pickled until Fe is between 8% and 12% of it by weight, then the solution is transferred to a crystallizer and cooled to below 140 DEG F., and preferably below 80 DEG F., so that the ferrous sulphate crystallizes as ferrous sulphate heptahydrate. When the solution has been freed of the crystals so formed it is replenished and returned to the pickling bath. Vapours from the pickling bath may be collected and acid recovered from them and returned to the bath, which is replenished to keep the acid concentration between 8% and 20% by weight of sulphuric acid and is heated to between 140 DEG and 180 DEG F., preferably by steam jets, and is agitated by discharge of compressed air.
Patent ES-337420-A1 (ES)
Title: Wire retainer for panelboard
IPC: H05K7/06
Filed: 1967-03-01
Abstract: A wire retaining device 3 for a multiple contact panel board 1 comprises a resilient insulating column 4 having a perpendicularly projecting foot 5 with an aperture 7 receiving a terminal post 2 of the panel board, and at the other end of the column a flexible arm portion 8 has a downward projection 9. As shown in Fig. 2, the relative orientation of aperture 7 to column 4 is such that arms 8 on adjacent devices 3 bridge the interpost spacing. Wire lead 10a for interconnection of terminal posts 2 is clipped to one post by clip 12, and laid against the panel board 1 along its route, being held beneath arm portions 8, leaving free the upper, tapered end of terminal 2. The apertures 7 may be so oriented relative to respective columns 4 that arms 8 extend in a cardinal direction of the grid array (Fig. 3, not shown).
Patent ES-338441-A1 (ES)
Title: Television deflection circuit with compensation for voltage supply variations
IPC: H04N3/22
Filed: 1967-03-25
Abstract: In a television receiver, the field time base capacitor 36 is charged from a voltage derived in such a way as to compensate for the effect on the vertical raster size of variations of the accelerating voltage of the cathode-ray tube caused by variations in supply voltage. As shown, capacitor 36 is charged via an amplitude control 40 from a voltage developed between the output of a series transistor regulator 82 and point A on a potential divider comprising a Zener diode 44 and resistors 46, 48. The charge is terminated by a synchronizing pulse fed via capacitor 60 to the base of switching transistor 22 so that capacitor 36 becomes discharged. The resulting sawtooth waveform is fed via an emitter follower 20 and an output transistor 18 to field deflection output terminals V, V1. The circuit is made self-oscillatory by positive feedback via capacitor 28 to the base of transistor 22. A further feedback circuit comprising transformer 26 and hold control 62 provides a parabolic waveform resulting in a steep slope near the end of each trace, thus providing noise immunity. A thermistor 78 and capacitor 76 arrange for the discharge of capacitor 36 to be terminated at an appropriate voltage to provide the correct quiescent current in transistors 20, 18. A linearity control circuit 50, 52, 54 enables an S-corrected output current to be achieved but prevents feedback at frequencies substantially lower than the field deflection frequency. An anti-lock-on resistor 24 is provided. Capacitor 32 by-passes signals at line frequency. A clamping circuit 34 protects transistor 18 against excessive flyback voltages. Amplitude stabilization: power supply.-The power supply may be derived from A.C. mains by a full-wave rectifier 79 or from a 12 V. battery and is stabilized by action of transistors 88, 82 and Zener diode 44. The charging circuit 40, 38 for the field capacitor 36 is derived from point A at the junction of resistors 46, 48, the values of which are such that the variation in field deflection amplitude due to supply voltage variation compensates for the effect of the supply voltage variation on the accelerating voltage of the cathode-ray tube.
Patent ES-339321-A1 (ES)
Title: Olefin Oxides
IPC: C07D301/14
Filed: 1967-04-14
Abstract: Oxirans are prepared by reacting a solution of performic acid in a hydrophobic organic solvent with compounds containing a >C: C< group, the reaction mixture being substantially free from mineral acid and substantially anhydrous or containing a small amount of water.
Patent ES-340960-A1 (ES)
Title: Oleopneumatic suspensions
IPC: B60G11/26
Filed: 1967-05-24
Abstract: An oleopneumatic suspension system comprises a plurality of struts 1 each located adjacent a vehicle wheel between sprung and unsprung masses thereof, said struts each consisting of a piston 3 with an articulated piston-rod 3a in a cylinder 2, the cylinder chamber 4 above the piston being filled with oil and communicating with a pneumatic suspension spring 5 via clamping foils, wherein the intake of oil into each strut is controlled by a valve means 8 combined with the strut from a reservoir 166 which supplies all the struts via lines 10 and 11, the valve means 8 being operated by pressure variations brought about in the. strut by variations of its length. The valve means 8 is fixed within chamber 4 and has longitudinal bores 37, a piston 47 having a rod 49b adapted to seat on a member 43, a chamber 52 communicating with line 10, a chamber 58 communicating with chamber 4, a chamber 59 communicating with atmosphere, and a chamber 60 adapted to communicate with a port 64 in cylinder 2 via a space 63 in the cylinder wall. Ports 6 and 6b in the cylinder wall also intercommunicate via a space 6a. If the piston is extended below port 64 the pressure in chamber 4 via space 63 causes the piston 47 to move up so that rod 49b cuts off the supply of pressure oil. When the piston is above port 64 chamber 4 is always connected to the source of pressure oil. If the piston is below both ports 64 and 6 then the oil from chamber 4 will pass into chamber 7 via space 6a and port 6b, and then to reservoir 16b. The reservoir is supplied with oil by an enginedriven pump 19 via a manostatic gate valve 20 and non-return valve 21. An enclosure 18 of the reservoir contains compressed air.
Patent ES-343239-A1 (ES)
Title: Conveying apparatuses
IPC: B65G33/34
Filed: 1967-07-20
Abstract: Material from stationary hopper 15 is introduced through buckets or openings 17 into cylindrical housing 1, the buckets being carried by the housing which is rotated together with screw 3 so that the material rises to the top of the housing and is discharged through openings 24 therein and thence is discharged by plate 27 carried by the rotating housing through discharge shoot 25. Housing 1 and screw 3 are driven through pulleys 19 and 21 at substantially equal speeds so that the material is flung on to the interior surface of housing 1 as it is elevated.
Patent ES-350222-A1 (ES)
Title: Process for making reinforced polyester laminates utilizing irradiation
IPC: B41F23/04
Filed: 1968-02-06
Abstract: Reinforced polyester laminates are made by building up a laminate from unsaturated polyester resin and reinforcing material, such as glass fiber matting, the laminate being sandwiched between two foils during the polymerization and curing, and the polyester resin being polymerized by irradiation with high-energy electrons. Preferably the laminate is provided with permanent foils, produced by applying foils of unsaturated polyester resin in partly polymerized state to the laminate on both sides thereof and then irradiating the composite laminate with high-energy electrons to complete polymerization, whereby the foils are firmly bonded to the laminate.
Patent ES-354956-A1 (ES)
Title: Process for the preparation of Polyesters of Terephthalic Acid
IPC: C08G63/87
Filed: 1968-06-12
Abstract: In the manufacture of polyethylene terephthalate by directly esterifying terephthalic acid with ethylene glycol and thereafter polycondensing the resulting ester, the formation of ether bonds is minimized by carrying out the esterification reaction in the presence of triethanolamine in an amount of 0À001% to 1%by weight of the terephthalic acid. Cobalt salts may be used as esterification catalysts and antimony trioxide (with or without phosphorous acid, aryl phosphites or aryl phosphates as stabilizers) may be used as a polycondensation catalyst.
Patent ES-355558-A1 (ES)
Title: Apparatus for continuous casting and cooling system for same
IPC: B22D11/049
Filed: 1968-06-28
Abstract: In a vertical continuous casting apparatus in which a mould 2 is cooled by a water sheet impinging on its outside wall 23 and the mould is supported upon a casting frame 1 by intermediate members- 3, 4, 5, 6, the intermediate members comprise a support frame 3, 5, a mould support 4 and an overspill 6. Both the overspill and the mould support are replaceable to enable moulds of different sizes to be used in a single casting frame. The coolant flows in a passage between the intermediate members. The overspill preferably has a pointed edge 61 to prevent water from accumulating on it.
Patent ES-357230-A1 (ES)
Title: Infant feeding device
IPC: A61J11/00
Filed: 1968-08-13
Abstract: A feeding nipple 12 comprises a teat end 40, an open end defined by outwardly extending flange 50, an annular wall 48 with at least one vent opening 52 therethrough, a first inwardly extending flange 56 between the teat 40 and vent 52, a second inwardly extending flange 64 extending angularly towards the open end of the nipple from the inner end of the flange 56, the second flange 64 having lips (72) or grooves 68 so that when the second flange 64 engages a bottle finish, air can flow past the second flange. The nipple is described in combination with a bottle 10 a frangible sealing cap 14 and a disc 60 which with the cap in place seal the bottle to protect milk contained therein. Breaking off the cap permits wall 48 to expand and permit milk to pass disc 60 in which grooves 62 may be provided to assist the passage of milk, with air entering through aperture 52. In one embodiment (Figs. 5, 6 not shown) the disc is absent. Reference has been directed by the Comptroller to Specification 1,131,966.
Patent ES-358609-A1 (ES)
Title: Preparation of through hole printed circuit boards and compositions useful therefor
IPC: H05K3/42
Filed: 1968-09-27
Abstract: A copper clad polymer insulating board having through holes is coated with copper on the walls of the holes by electroless followed by electrolyte plating, and to prevent the copper plating from adhering to the copper cladding, the board is contacted with an acid solution of a lower alkyl thiourea before plating.
Patent ES-361344-A1 (ES)
Title: Hydrophilic polyurethane sponge
IPC: C08J9/40
Filed: 1968-12-12
Abstract: A laminate may be prepared by adhering a polyurethane sponge to a low density fibrous web or to a metal plate with polyurethane adhesive, the polyurethane sponge having deposited on its surfaces a montmorillonite clay to render it hydrophilic. The sponge may be rendered hydrophilic either before or after lamination by immersing it in an aqueous slurry containing a montmorillonite clay and squeezing out the excess slurry.
Patent ES-364731-A1 (ES)
Title: Apparatus for measuring grain losses in threshing machines, particularly harvester-threshers
IPC: A01D41/127
Filed: 1969-03-13
Abstract: Grain loss measuring apparatus in a combine harvester which has a straw shaker, a short straw sieve and a receiving device for the grains to be measured comprises a pressure responsive sensing device operated by the amount of grain passing a specific point per unit time. The sensing device may be arranged to measure the grain loss at the straw shaker or the short straw sieve and comprises a blower 76 and a co-operating pressure gauge 78. The sensing device may be arranged to automatically regulate the speed of the combine and, if desired, the operation of a blower which co-operates with the shaker or the sieve, or merely to provide a visible or audible signal to the harvester operator. Where the sensing means is to be used in conjunction with the shaker 12 an aperture 20 is provided extending across the whole width of the shaker which collects the grain passing through at that point and delivers it via a worm 24 to the sensing device 70. The worm may be replaced by an angled plate or the device 70 may extend across the full width of the combine. Where the sensing device is to be used in conjunction with the sieve three worms are positioned at the end of the sieve each feeding a sensing device. Two of the sensing devices are used to control the sieve apertures and the sieve blower with the third controlling both. When the apertures are enlarged the harvester's chaff worms may become overfull so a further measuring device is provided and the outputs of all the devices are fed to a computer. The sensing device 70, Fig. 3, has a suction blower 74 for removing chaff. The pressure gauge 78 registers a reading dependent on the degree to which the air flow from the blower is disturbed by the grain flow. In a modification the blower 76 is directed up the grain channel from one side and the pressure gauge is located someway up the channel at the other side so that the air flow sweeps the whole of the cross section of the channel.
Patent ES-387937-A1 (ES)
Title: Device for removing bulk material from storage
IPC: B65G65/06
Filed: 1971-02-04
Abstract: A device for removing bulk material from storage in a dump pile includes at least one scraper arranged to be raised and lowered on a gantry spanning the dump.
Patent ES-400760-A1 (ES)
Title: Ammonia-synthesis catalyst
IPC: C01C1/04
Filed: 1972-03-14
Abstract: The present invention relates to ammonia-synthesis catalysts. The novel catalysts, in the oxidized state, contain iron oxide having a degree of oxidation corresponding to Fe3O4, and cobalt introduced in the form of salts, carbonates or oxides the content by weight expressed as cobalt is 5 to 10 percent.
Patent ES-410711-A1 (ES)
Title: Analog voltage switch
IPC: H03K17/14
Filed: 1973-01-17
Abstract: This disclosure concerns an analog voltage switch in which the output thereof reproduces as exactly as possible the analog voltage supplied to the input. The analog voltage switch includes a plurality of channels, each of which is provided with an analog voltage input and a control input for enabling the channel to be selected. The selected channel as determined by the control input receives an analog voltage input which appears at the output thereof. The analog voltage switch employs primarily semiconductor components and is especially applicable to use in an integrated form in that current amplifications of complementary semiconductor components and forward voltages of diodes employed in the analog voltage switch are of substantially the same magnitude and constant current sources included therein supply substantially the same current. By virtue of this arrangement, the temperature-dependent deviations of the semiconductor components employed in the analog voltage switch effectively cancel out each other such that the circuit comprising the analog voltage switch is substantially independent of temperature.
Patent ES-412437-A1 (ES)
Title: N-(N{40 substituted-aminomethylidene)-O,S-dialkylthiol-phosphoric acid diester-imides
IPC: C07F9/58
Filed: 1973-03-08
Abstract: N-(N'-substituted-aminomethylidene)-O,S-dialkylthiolphosphoric acid diester-imides of the formula IN WHICH R and R' each independently is lower alkyl, and R'' is alkyl or alkenyl with up to 6 carbon atoms, CYCLOALKYL WITH 4 TO 6 CARBON ATOMS OR A NITROGEN-CONTAINING HETEROCYCLIC STRUCTURE, WHICH POSSESS INSECTICIDAL AND ACARICIDAL PROPERTIES.
Patent ES-415331-A1 (ES)
Title: Tank for a swimming pool or the like
IPC: E04H4/14
Filed: 1973-05-29
Abstract: A tank of the swimming-pool type formed of rigid plastic material such as polyurethane foam and provided with a fluid-tight lining of small thickness is placed directly in contact with the soil within a pit which has been dug in the ground. The modulus of elasticity of the side wall and preferably of the bottom is close in value to that of the surrounding soil so as to result in a uniform stress distribution and a deformability which removes any danger of crack formation.
Patent ES-419959-A1 (ES)
Title: Equipment for transporting and treating meat
IPC: A22C17/00
Filed: 1973-10-25
Abstract: Equipment for transporting and treating meat, in which a meat container, having the shape of a rotary body and being mobile on rollers and being adapted to be closed at both of its front ends, is, at a massaging station, moved into a supporting frame and tilted there together with said frame around a horizontal axis such that the container will rest on rollers of the supporting frame, by which rollers said container is driven for rotation (FIG. 1).
Patent ES-423979-A1 (ES)
Title: Fuel rod pellet loading head
IPC: G21C21/02
Filed: 1974-03-06
Abstract: An assembly for loading nuclear fuel pellets into a fuel rod comprising a loading head for feeding pellets into the open end of the rod. The pellets rest in a perforated substantially V-shaped seat through which air may be drawn for removal of chips and dust. The rod is held in place in an adjustable notched locator which permits alignment with the pellets.
Patent ES-426705-A1 (ES)
Title: Protective relaying apparatus of the unblock type
IPC: H02H3/26
Filed: 1974-05-28
Abstract: Protective relaying apparatus for power transmission lines of the unblocking type which utilizes a fault signal from a remote portion of the protected line to initiate a normal transient blocking timer which in the absence of a local fault signal (within its timing period) will initiate a desensitizing operation and prevent the tripping of the local breaker due to the presence of transient and an additional timer arranged to be energized in response to a local fault signal and effective when timed out to initiate the normal transient blocking timer in the absence of the remote fault signal. In a modified form of the apparatus, the concurrent reception of the received and local signals (indicative of a fault in the line section protected thereby) deactivates the normal timer and prevents its further timing operation to increase the margin of coordination when transient blocking should not occur.
Patent ES-428263-A1 (ES)
Title: Internal combustion engine with prechamber
IPC: F02B19/10
Filed: 1974-07-15
Abstract: A four-cycle internal combustion engine has eight cylinders each provided with a main combustion chamber and an auxiliary combustion chamber connected by a torch nozzle. A carburetor has a venturi throat supplying rich mixture to each of the auxiliary chambers and other carburetor throats supplying a lean mixture to each of the main chambers. Although the effective cross sectional area of the venturi throat for the rich mixture need not be larger than the effective cross sectional area of a single torch nozzle when the engine has four cylinders or six cylinders, an eight cylinder engine requires that the venturi throat for the rich mixture be smaller than 1.4 times as large in effective cross sectional area as each of the torch nozzles.
Patent ES-434603-A1 (ES)
Title: Sliding shuttering raising device for the continuous production of partitions and shuttering fitted with this device
IPC: E02B17/08
Filed: 1975-01-30
Abstract: The invention relates to a device for raising a sliding shuttering designed to be used for the continuous production of silos, water towers, etc.
Patent ES-437570-A1 (ES)
Title: Shutter for optical detection
IPC: F23M11/04
Filed: 1975-05-10
Abstract: A shutter, for an optical detector head having a sleeve containing a focusing lens adjacent a first sleeve open end for directing incident radiation onto a photocell positioned at the other sleeve end, and includes a rotatable spherical shutter member of an optically opaque material and having a diametric aperture normally axially aligned between the photocell and the lens. A mask member having a central aperture of lesser diameter than the diameter of the shutter member is transversely positioned across the sleeve bore adjacent the surface of the shutter member nearest the lens, whereby incident radiation will be focused by the lens to pass through the aligned mask and shutter apertures to the photocell when the shutter aperture axis is aligned to be along the focal line of the lens. Low-friction bearing means formed through a portion of the sleeve wall rotatably engage a cylindrical pin having a first end joined to the surface of the shutter member perpendicular to the shutter aperture axis to achieve uniform rotational mass distribution another end of the pin projects beyond the exterior of the sleeve and includes vane means engaged by bias means for rotatably positioning the shutter aperture axis in the normally aligned condition. Electrically controllable means cooperates with the vane means for applying a torque to the shutter member whereby the aperture axis is rotated away from alignment along the lens focal line thereby blocking the mask aperture and preventing incident radiation from impinging on the photocell.
Patent ES-437884-A1 (ES)
Title: Arrangement for the treatment, particularly the drying, of particulate matter by entrainment in a gas
IPC: F26B17/10
Filed: 1975-05-23
Abstract: An arrangement is disclosed which is suitable for the treatment of particulate matter entrained by a gas, a preferred application being to the drying of particulate matter. The arrangement includes a treatment zone having an inlet region for the introduction of a stream of particulate matter which is entrained by a gas. Means defining a flow path for the substantially uniform entrainment of the particulate matter by the gas is provided upstream of the inlet region. The means includes a first section having an arcuate part and which communicates with a source of the gas. This first section has an upstream portion of circular cross-section and a downstream portion of rectangular cross-section and includes a region wherein the flow path cross-sectional area decreases in downstream direction. The flow path-defining means further includes a second section of rectangular cross-section communicating with the downstream portion of the first section and also includes a third section arranged intermediate the second section and the inlet region of the treatment zone and which communicates with the second section and the inlet region. The third section comprises an upstream part of rectangular cross-section and a downstream part of circular cross-section and has a region wherein the flow path cross-sectional area increases in downstream direction. Feeding means is provided for feeding particulate matter into the flow path-defining means. The feeding means communicates with the second section of the flow path-defining means. The arrangement makes it possible to achieve a uniform distribution of particulate matter in a treatment zone and is particularly applicable to treatment zones of larger diameter where a uniform distribution of the particulate matter over the cross-section of the zone is often difficult to achieve.