baber/WOPTO huggingface dataset:
Patent ES-345622-A1 (ES)
Title: Process of recovering iron ore from iron pyrites with acid leachant
IPC: C22B1/242
Filed: 1967-09-30
Abstract: Pyrites cinders are leached with a leaching liquor to obtain "purple ore" and an iron containing solution, non-ferrous metals are separated from the iron contained in at least part of the iron containing solution, at least part of the iron contained in the iron containing solution is added to the purple ore, and pellets are formed from the resulting mixture. The iron in the iron containing solution may be added to the purple ore by using the solution as a moistening agent during the formation of the pellets and/or after being precipitated as an oxide and oxyhydroxide. The leaching liquor may be sulphuric acid of concentration greater than 5%, hydrochloric acid, nitric acid or a mixture of nitric acid, hydrochloric acid and sodium chloride. An agglomeration agent may be included in the pellets, e.g. bentonite, infusorial earth, in an amount of 0-5% by weight, based on the mixture of iron ore and agglomeration agent. The pellets may be calcined at up to 1300 C.
Patent ES-346546-A1 (ES)
Title: Stabilized Hydrocarbon Polymers
IPC: C08K5/13
Filed: 1967-10-28
Abstract: A composition comprises an unvulcanized cis-polybutadiene elastomer and a 4,41-bisphenol of the formula wherein R 1 and R 3 are the same or different and are each an alpha-branched alkyl group of 3 to 20 carbon atoms, a cycloalkyl group of 6 to 20 carbon atoms or an alpha-branched aralkyl group of 8 to 20 carbon atoms, and R 2 and R 4 are the same or different and are each an alkyl group of 1 to 20 carbon atoms, a cycloalkyl group of 6 to 20 carbon atoms, or an aralkyl group of 7 to 20 carbon atoms. The compositions are suitably oil-extended conventional vulcanizing ingredients may be added and the composition vulcanized. The stabilizer is suitably added to solution polymerized polybutadiene (cement), followed by solvent removal (e.g. with boiling water) to form a crumb of unvulcanized rubber. Many specific stabilizers are mentioned, those preferred having R 1 , R 2 , R 3 and R 4 identical. Examples are given of the use of 4,41-bis- (2,6 - di - tert - butyl phenol), 4,41 - bis - (2,6- di - cyclohexyl phenol) 4,41 - bis - (2,6 - disec - butyl phenol), and 4,41 - bis - [2,6 - di- ([alpha]-methylbenzyl)-phenol].
Patent ES-347937-A1 (ES)
Title: Dentrifice
IPC: A61Q11/00
Filed: 1967-11-23
Abstract: Dentifrice compositions comprise sodium fluoride, spherical particles of polymethyl methacrylate having a size of from 0.2Á to 2.0Á and conventional dentifrice ingredients.
Patent ES-350532-A1 (ES)
Title: Pressure medium actuated percussion mechanism
IPC: B25D11/06
Filed: 1968-02-15
Abstract: A percussive tool comprises a drive piston reciprocable within a cylinder to pressurize liquid in the cylinder and thereby effect reciprocation of a hammer piston part of which extends into the cylinder, and a valve sleeve engageable by the drive piston when the latter is moved towards the hammer piston until the drive piston reaches a predetermined position at which position the valve sleeve is urged away from the drive piston to open return passageways within the drive piston to allow the liquid to pass from the cylinder to a chamber outside the cylinder. As illustrated the drive piston 3 is driven by an eccentric 4, and on a working stroke its surface 17 engages a corresponding surface 18 on the valve sleeve 15. Further downward movement of the drive piston effects a working stroke of the hammer piston 8. The piston 3 and cylinder include respectively an annular projection 24 and a bore, adapted to receive the projection, of greater diameter than the bore of the cylinder in which the sleeve slides. Therefore downward movement of the projection 24 causes the pressure acting on the upper surface 25 of the sleeve to increase. Thus at a predetermined position of the drive piston, the sleeve is displaced relative to the drive piston to open the return passageways 19, and the liquid flows back into a chamber 2a. Passageways 12 communicate with the chamber 2a. Alternatively (Fig. 3, not shown) the valve sleeve has a cam surface which co-operates with a cam on the eccentric such that the sleeve is displaced relative to the drive piston to permit pressure liquid within the cylinder to return to the chamber 2a. The tool has mechanism (Fig. 2) including a fluid or friction coupling 45, whereby a tool bit holder 43 may be continuously rotated during percussive action by means of a worm drive 40-43. Means, including a fan, is also provided for the introduction of pressure air into the space below the hammer piston 8. Reference has been directed by the Comptroller to Specification 915,496.
Patent ES-353929-A1 (ES)
Title: Improvements in or relating to logic devices
IPC: H03K19/00
Filed: 1968-05-16
Abstract: An inverting D.C. amplifier 1a, Fig. 3, has two Zener diodes 3a, 4a oppositely connected in series from output 9a to input 8a, whereby both positive and negative output voltages (Es, Fig. 2, not shown) are limited to narrow zones (11a, 11b) on the voltage output-current input characteristic, and has an odd number of inputs, for example three, 12a, 13a, 14a. The amplifier may perform NOR, NAND, and majority logic functions, according to whether the input voltage at 13a is fixed positive +U, fixed negative - U, or a free signal, respectively. Two such amplifiers Ia, 1b are connected to give a bi-stable circuit, which, as shown with + U at 13a and + U at 13b performs the function S=(C+S).#D, where D is an inhibit input. Faults in the amplifier, in the Zener feedback, in a preceding stage or in an interstage coupling are detected by departures of the output voltage from the narrow zones 11a, 11b. For example, the output voltage may reach the supply voltage (A) or the amplifier saturation voltage (V), or may have a value between the two zones, and such departures are detected by connecting at 9a a voltmeter, a moving spot galvanometer with a photo-cell having shaded areas corresponding to zones 11a, 11b and controlling a relay, or a numerical calculator. Alternatively, the voltage between two successive amplifiers is measured, a fault being indicated by this voltage being greater than the width of a zone (2#). Zero voltage means a loss of one input (there then being an even number of inputs left) in the condition where the remaining inputs are halfpositive and half negative. If this condition does not prevail, the loss of one input may be tested for, by applying a known voltage to an extra, test, input when the other inputs are known, so that zero output is expected if no fault is present. In an application, the input signals are received from an input circuit consisting (Fig. 5, not shown) of a similarly voltage limited amplifier (1c) deriving its input from a voltage source (19, 20) which may be a thermocouple, or a liquid-level measuring float-actuated potentiometer or a piezo-electric crystal, the circuit thus indicating when a given level of one of the non- electric variables is reached. The threshold is set by an adjustable voltage source (21).
Patent ES-361394-A1 (ES)
Title: Catalytic process for the production of polyesters
IPC: C08G63/85
Filed: 1968-12-13
Abstract: In a process for making polyesters from one or more aromatic and/or aliphatic dicarboxylic acids, and aliphatic and/or cycloaliphatic and/or aromatic dihydric alcohols, there is used a catalyst comprising mixtures and/or an alloy or alloys of (a) Sb, (b) Sn and/or Pb, (c) Cd and/ or Mn. The catalyst preferably contains 10- 80% by weight, of (a), 10-80% by weight of (b) and 5-70% by weight of (c). In the examples, polyesters are made from (i) dimethyl telephthalate and ethyleneglycol, with or without dimethyl isophthalate or the bis-glycol ether of bis-phenol A and pentaerythritol or (ii) dimethyl terephthalate and 1,4 - bis - (hydroxymethyl)- cyclohexane.
Patent ES-364525-A1 (ES)
Title: Simplified horizontal dynamic convergence circuit
IPC: H04N9/28
Filed: 1969-03-08
Abstract: In a convergence circuit for a multi-beam cathode-ray tube, two convergence windings, specifically the windings 1H and 2H (Fig. 1) for horizontal convergence correction of the red and green guns of a tri-gun colour display tube, are connected in series and supplied via an adjustable inductor 13 with pulses of horizontal frequency from the horizontal deflection circuit. The inductor 13 integrates the pulses and provides a sawtooth voltage which is integrated by the convergence windings to produce therein a parabolic current wave, the amplitude of which may be adjusted by adjustment of the inductor 13. During the first half of the horizontal scan period diode 18 conducts and the rectified current flowing in the windings 1H and 2H clamps the trough of the parabolic current to a fixed valve, so that static centre convergence does not change as a function of control adjustments. During the latter half of the horizontal scan, when diode 18 is non- conducting, the shunt path including resistor 17 and diode 18 has a high resistance and the amplitude of the saw-tooth may be adjusted by adjustment of potentiometer 16 in the shunt path including capacitor 14 and resistors 15 and 16 without such adjustment affecting the conditions during the first half of the scan during which adjustment is effected by means of the inductor 13. This latter adjustment, which is made first, a cross-hatch generator producing a pattern of equally spaced vertical and horizontal lines being employed, aligns the vertical red and green lines on the lefthand side of the screen (the first half of the horizontal scan) after which potentiometer 16 (the master tilt control) is adjusted to align the vertical red and green lines on the righthand side of the screen (the last half of the horizontal scan) and differential tilt control is then affected by means of potentiometer 20 to align the horizontal red and green lines. The blue horizontal convergence circuit is a known type. Component values are given.
Patent ES-366688-A1 (ES)
Title: Dibenzocycloheptene derivatives and the manufacture thereof
IPC: C07C291/04
Filed: 1969-05-02
Abstract: Novel compounds of Formula I in which R 1 represents a hydrogen atom or a methyl group, R represents a methyl or acetyl group and the dotted bonds can be hydrogenated, N-oxides of compounds of Formula I in which R 1 represents a methyl group, geometric and optical isomers of said compounds, and N-oxides and acid addition salts of said compounds, N-oxides and isomers with the exception of 1-methyl-5-(3-methylaminopropylidene) - 5H - dibenzo - [a,d] - cycloheptene and 1 - acetyl - 5 - (3 - methylaminopropyl)-5H- dibenzo 10,11-dihydrocycloheptene, are prepared by one of the following methods: (a) reduction of a compound of formula (b) dehydration of one of the compounds of formul[mu] where R1 is methyl or a ketalized acetyl group, (c) reacting a compound of formula wherein W represents a halogen atom, with a 3-dimethylaminopropyl magnesium halide, (d) treating a compound of one of the general formul[mu] wherein Z represents a halogen atom or a substituted sulfonyloxy group and A represents the anion of an acid, with methylamine, dimethylamine or dimethylhydroxylamine, (e) methylating a primary amine of the general formula wherein E represents an amino group or an N-hydroxy-N-methyl group, (f) debenzylating a compound of the general formula (g) heating a compound of either of formul[mu] wherein P 1 represents a hydrogen atom or a hydroxyl group and P 2 represents a hydrogen atom or P 1 and P 2 together represent an additional bond, Q represents the residue of an aldehyde and B represents the anion of an acid, (h) reacting a compound of the general formula wherein T is an alkali metal atom with a compound of formula L.CH 2 .CH 2 .CH 2 N(CH 3 ) 2 , wherein L is a halogen atom or a substituted sulphonyloxy group, and (i) hydrolytically cleaving a compound of formula wherein D represents an acyl or esterified carboxyl group, whereupon, in any desired sequence and if desired, a resulting compound in which R 1 represents a hydrogen atom is methylated, if desired, a compound in which R 1 represents a methyl group is oxidized or converted into a compound in which R 1 represents a hydrogen atom by demethylation, if desired, an unsaturated product obtained is hydrogenated, if desired, a 10,11-dihydro compound obtained is dehydrogenated, if necessary, a ketal obtained is deketalized, if desired, the geometric and/or optical isomers are isolated from an isomer mixture obtained and, if desired, a base obtained is converted into an acid addition salt. 1 - Methyl - 5 - chloro - 5H - dibenzo[a,d]cycloheptene and the 10,11-dihydro-compound are prepared by the action of thionyl chloride on the corresponding 5-hydroxy-compounds which are obtained by reduction of the 5-keto compounds. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having antidepressant, adrenolytic, anihistamine and local anaesthetic activity comprise an above novel compound and a carrier therefor.
Patent ES-367407-A1 (ES)
Title: Clutch and brake with pressure operated sequencing valve
IPC: B60T11/10
Filed: 1969-05-19
Abstract: A steering and braking system, for an endless track vehicle with steering clutches and brakes, comprises a pair of manual control valves 5 each movable from a first rest position (Fig. 1) successively to a position for initiating movement of a respective hydraulic de-clutch actuator 55 and subsequently to a position for applying a brake 62, and a single sequencing pilot-operated relief valve 1 having a pilot pressure connection 46 to the de-clutch actuator, a connection 2 to a high pressure oil source and a connection 19, 20, 25 and 26 or 27 to a brake actuator 59 constituting a first spill passage from the valve 1. On starting the pump 3, with the valve 5 in the rest position, pressure builds up in the chamber 44 moving the stepped valve plunger 29 to the left until an annulus 21 in a sleeve 11 is uncovered permitting spillage of oil through passages 22, 23 to a reservoir. On movement of the control valve plunger 70 to the left, the gallery 75 bridges galleries 52, 53 allowing oil to flow from pump pressure bore 6 of the valve 1 through pipe 9 to operate the de-clutch actuator 55 and thence through a pipe 46 to a pressure sensing space 43 of the valve 1. The pressure in the space 43 acts on the large end of the plunger 29 to move it to the right until it covers the exhaust passage 22 and partially covers the holes (15) (Fig. 5, not shown) and 18, increasing the pressure in the space 44 until a balance is obtained between the pressures on the ends of the plunger 29 and the plunger 37 is moved to the right permitting the oil to exhaust through passages 38, 42, 34 and 35. Meantime gallery 74 is in register with the gallery 58 permitting the space 44 to vent through the holes 15, pipe 26, gallery 58 and passages 71, 72, 63 in the plunger 70 and brake actuator 59. On further leftward movement of the plunger 70 the plunger nose 77 abuts the actuator 59 to operate the brake directly and to permit a pressure build-up in the interior of the actuator 59, thereby urging it to the left. This increasing pressure acting on the nose 77 is communicated to the driver.
Patent ES-371392-A1 (ES)
Title: Oxazinobenzodiazepine derivatives
IPC: C07D498/04
Filed: 1969-09-10
Abstract: Compounds of the general formula (R 1 , 2 , 3 , a = H, C 1-6 alkyl or alkoxy, halogen, CF 3 , NO 2 , CN R 5 = H, C 1-6 alkyl, cyclopropylmethyl, PhCH 2 R 6 = O, S R, = H, C 1-6 alkyl or alkoxy R 8 = H, C 1-6 alkyl, Ph) are prepared by reacting a compound of the formula with a compound (which may be prepared in situ) of the formula optionally followed by removal of the 8-benzyl group, if present, by hydrogenolysis. The above compounds are sedatives, tranquilizers and anticonvulsants, and may be administered in the form of pharmaceutical and veterinary preparations containing them together with a carrier.
Patent ES-375138-A1 (ES)
Title: Rolling mill
IPC: B21B31/10
Filed: 1970-01-02
Abstract: The disclosure of the present invention relates to a rolling mill having indented housing posts to allow minimum length work roll chocks to be employed. The work roll chocks and the backup roll chocks are constructed with a minimum of irregular and difficult-to-machine surfaces. In addition, the rails and wheels used to quickly remove and replace the work rolls are connected in a very simple and economical manner to the backup chocks and work roll chocks, respectively, by separate connected bars.
Patent ES-398389-A1 (ES)
Title: Electromagnetic fluid control valve
IPC: F16K31/06
Filed: 1971-12-28
Abstract: An electromagnetic valve for controlling fluid flow in a line which includes a plug coacting with pole pieces and a coil in a magnetic circuit, and ports in the fluid circuit of the valve, wherein the plug permits or prevents fluid flow respectively in response to deenergization and energization of the coil. The ports are arranged relative the plug to effect a partial pressure balancing.
Patent ES-401118-A1 (ES)
Title: Rotatable material handling drum
IPC: B01J2/12
Filed: 1972-03-23
Abstract: A balling drum which includes a conventional end discharge preferably of the type shown by U. S. Pat. No. 2,822,076, granted to John F. Baier on Feb. 4, 1958, and which balling drum additionally includes a discharge section intermediate the length of the drum and upstream of the end discharge section, the intermediate discharge section comprising helically extending port means in the form of helical slots through the wall of the drum which slots are so positioned with respect to the angular path of load material flow relative to the internal surface of the balling drum that some predetermined percentage of the entire load passing through the balling drum, preferably about 50 percent of the entire load, is discharged by the intermediate discharge section, the helical slots substantially evenly distributing the discharge flow from the intermediate discharge section onto a classifying screen positioned beneath the intermediate discharge section.
Patent ES-409047-A1 (ES)
Title: Pneumatic thermostat
IPC: F24F11/76
Filed: 1972-11-28
Abstract: A pneumatic thermostat for air conditioning and heating systems utilizes an adjustable hinged arm with a bimetal member that is positionable by a cam for controlling air flow through a bleed orifice. Air to the orifice from a pressure source is also supplied to a calibration chamber in the thermostat so that the resulting pressure therein will control the position of an indicator pin that becomes visible from outside the thermostat at certain pressure levels. Means are provided for adjusting the position of the hinged arm without opening the thermostat so as to control the amount of air flow through the bleed orifice and hence the pressure in the calibration chamber. Proper calibration is attained by setting the cam relative to a known temperature level and adjusting the arm position by visual reference to the position of the indicator pin.
Patent ES-409056-A1 (ES)
Title: Switching system for a transportation system employing a guideway
IPC: B61B13/00
Filed: 1972-11-28
Abstract: A switching system for a transportation system of the type employing a guideway and vehicles adapted to travel along the guideway. A guideway junction is provided having a first end communicating with a first portion of the guideway and having a bifurcated, second end communicating with second and third, mutually diverging portions of the guideway. A movable guide rail is positioned adjacent the first end of the junction and pivotable between first and second positions for initially guiding a vehicle in a respective one of two directions upon the vehicle entering the junction from the junction first end. A fixed, guiding means is positioned between the movable guide rail and the second guideway portion and is operable to guide a vehicle through the junction and onto the second guideway portion upon the vehicle being initially guided by the movable guide rail while the movable guide rail is in its first position and another fixed, guiding means is operable to guide a vehicle through the junction and onto the third guideway portion upon the vehicle being initially guided by the movable guide rail positioned in its second position. In one embodiment of the switching system, the movable guide rail is positioned by actuating means operable for moving the guide rail to a selected one of its two positions. In another embodiment adapted particularly to accomodate vehicles entering the junction from the second or third guideway portions, the movable guide rail is normally held in its first position by positioning means operable for resiliently urging the movable guide rail to its first position, and is deflected to its second position by vehicles which enter the junction from the third guideway portion.
Patent ES-409186-A1 (ES)
Title: Pre-heating apparatus in rotary kiln plant
IPC: F27B7/20
Filed: 1972-12-01
Abstract: Pre-heating Apparatus for pre-heating pulverous raw material (e.g. cement raw meal) prior to its introduction into a rotary kiln for burning is disclosed. In construction the pre-heating apparatus includes four strings of treating units, each unit including separation and heat exchange zones, wherein the units of each string are disposed in series superimposed relationship in communication with the kiln and wherein the four strings are arranged symmetrically with respect to determined planes oriented with respect to the kiln axis and kiln outlet.
Patent ES-413310-A1 (ES)
Title: Device including a pulley, a clutch, a retarder, and a brake, in particular for hoisting gears
IPC: F16H35/00
Filed: 1973-04-03
Abstract: The invention relates to an adjustable speed driving device.
Patent ES-414050-A1 (ES)
Title: Biological shield for a nuclear reactor
IPC: G21C15/02
Filed: 1973-04-25
Abstract: The invention discloses a biological shield for a nuclear reactor such as a pressurized-water reactor and the like. The biological shield surrounds the reactor pressure vessel and is made of concrete. The shield includes two concentric shield parts and a cooling medium is conducted through a gap conjointly defined by the shield parts.
Patent ES-414383-A1 (ES)
Title: Machine for working shoe sole contours
IPC: A43D8/06
Filed: 1973-03-14
Abstract: Machine, adapted for working the sole contours of shoes of any size or number whatever, including a copying roller, disposed at the end of a rod, journalled hingedly to an arm, whilst over said rod slides a sleeve, connected to a movable carriage, sustained by a support, fixedly secured to the tool holding arm, the sleeve displacing on the rod via a worm gear, acting on the carriage, displacing it axially relative to its support, whilst the support arm of said rod is connected to an oscillating arm, sustained by specially provided levers, journalled into one upper cross beam of the machine, the same oscillating arm being balanced by a pair of big springs and may describe a linkage motion, delivered thereto by the particular rotation of an oblong box, driven by a roller, pressing on a portion of its inner wall, said roller being keyed on a helical gear, which is controlled by a worm gear, driven in turn by a self-braking motor via a belt, two presser means being connected to the aforesaid oscillating arm, which fasten the sole to be worked and the basic template, which imparts suitable displacements to the copying roller.
Patent ES-426229-A1 (ES)
Title: Slack adjusters
IPC: F16D65/60
Filed: 1974-05-11
Abstract: An automatic slack adjuster is proposed which has an internally geared input member and an externally geared output member which is slightly eccentrically mounted within the input member and meshes with it and adjustment is achieved by moving the centre of the output member relative to the centre of the input member to effect relative rotative adjustment, the movement of the centre of the output member being achieved by rotation of eccentric bushes in which it is mounted.