baber/WOPTO huggingface dataset:
Patent ES-297923-A1 (ES)
Title: Emulsion polymerization of ethylene
IPC: C08F214/20
Filed: 1964-03-23
Abstract: Polymer emulsions containing particles of from 0.01 to 2.0 microns are obtained by polymerizing ethylene and/or vinyl fluoride and optionally another monomer, at 50 DEG to 250 DEG C. and 1000 to 50,000 p.s.i. in an aqueous medium containing a water-soluble, free radical catalyst, a low micelle potential surfactant as defined in the Specification and a high micelle potential anionic surfactant as defined in the Specification. In examples, the surfactants used are: (Low) the isopropyl amine salt of dodecyl benzene sulphonic acid, the condensation product of stearyl and cetyl alcohols with ethylene oxide, sodium lauryl sulphate, and morpholine dodecylbenzene sulphonate and (High) Na, K, Li and NH4 bis-(tridecyl) sulphosuccinates, sodium tetradecylsulphate, sodium bis-(octyl) sulphosuccinate, and sodium dodecylbenzenesulphonate.
Patent ES-298769-A1 (ES)
Title: Electrically heated bedcover
IPC: H05B1/02
Filed: 1964-04-16
Abstract: The heater 9 of an electric blanket (see Division H5) is supplied with electric power from an A.C. outlet by way of a plug 28, relay contacts 40, a safety switch 38 and a conventional control 33 to 36 responsive to ambient temperature. The relay 43 operating the contacts 40 has windings 44, 45 which are associated with a temperature sensor cable 10 (see Division H1) located within the electric blanket. The arrangement is such that the relay 43 is deenergized to open contacts 40 when local overheating occurs in the blanket. The relay circuit includes a semi-conductor device 53 so that the relay operates on A.C. without hum. The control circuit includes an " on " switch 54, an " off " switch 55, a safety switch 38 linked to the switch 54, and an indicator lamp 56.
Patent ES-307051-A1 (ES)
Title: Process for the manufacture of 4:4'-diamino - 1:1' - dianthraquinonyl - 3:3' - disulfonic acid
IPC: C07C309/53
Filed: 1964-12-12
Abstract: A process for the manufacture of 4,41-diamino - 1,11 - dianthraquinonyl - 3,31 - disulphonic acid or a salt thereof comprises treating 1 - aminoanthraquinone - 2 - sulphonic acid or a salt thereof with a Friedel-Crafts catalyst. The specified catalysts are AlCl3, AlBr3, FeCl3, ZnCl2, SnCl4, ZrCl4, TiCl4 and antimony chlorides. The reaction may be performed by heating the reagents alone or in the presence of a flux, e.g. nitrobenzene, sulphur dioxide, NaHSO3, NaCl, NaF, NaBr, urea, dimethylformamide or mixtures thereof. Advantageously there is also present a tertiary base, e.g. dimethylamine, triethylamine, pyridine, morpholine, acridine and picolines. There may also be present as catalyst a metal, alloy or metal compound (many specified). The reaction may be performed at 50-150 DEG C. Examples are given.
Patent ES-308361-A1 (ES)
Title: Process for the extraction of aromatic hydrocarbons from mixtures of liquid hydrocarbons containing them
IPC: C10G21/00
Filed: 1965-01-20
Abstract: Aromatic hydrocarbons are recovered from mixtures containing them by solvent extraction with a dialkyl sulphoxide and recovering the aromatics by contacting the extract in countercurrent with a solvent for aromatic hydrocarbons immiscible with dialkyl sulphoxide to obtain a second extract which is distilled to separate aromatics from the second solvent. The first extraction preferably includes the use of a reflux which may be a recycle of the final aromatic concentrate. The second solvent may be a paraffinic hydrocarbon fraction boiling above or below the aromatics. Olefins are removed from the product by treatment with attapulgite or sulphuric acid.
Patent ES-314806-A1 (ES)
Title: Axial-stress limiting device
IPC: F16D43/202
Filed: 1965-06-30
Abstract: A device for axially moving a spindle 1 of a valve, comprises a nut 2 secured to a shaft 34. Nut 2 is disposed in a housing 4 so that it can move axially. A stack of spring washers 12 is disposed between a shoulder 8 on the nut 2 and a thrust bearing 14 engaged in a recess in the housing 4. Upon the spindle 1 reaching a lower limiting position, nut 2 will be forced upwardly once the loading of the washers 12 is exceeded to cause serrations 26 to engage serrations 24 on a threaded member 22. Member 22 has an oppositely handed and coarser thread nut than nut 20 so that, as it is rotated by the nut, it locks the nut to prevent further rotation. Rotation of the member 22 is limited by lugs 28 which move in recesses in a flange 18.
Patent ES-318737-A1 (ES)
Title: Improvements in or relating to fire warning devices
IPC: G10K5/00
Filed: 1965-10-21
Abstract: A temperature alarm comprises a container for a non-inflammable vaporizable material having an outlet passage normally closed by a rupturable disc, the arrangement being such that the rise in pressure when the material is heated collapses the disc allowing vapour to flow through the passage to actuate an audible alarm, e.g. a whistle. A restrictive element may be placed in the passage to control the Joule effect cooling of the vapour to avoid liquifaction of the vapour and blockage of the valve.
Patent ES-336438-A1 (ES)
Title: Wheeled dumper vehicles
IPC: B60P1/16
Filed: 1967-02-04
Abstract: A wheeled dumper vehicle comprises front and rear frame sections A, B pivotable relative to one another about a longitudinal axis, an engine 18 mounted on the rear section B, a drive from the engine 18 to at least two wheels, and steering mechanism for steering wheels on the rear section B, the front section A carrying or being adapted to carry a skip 12. A pivot shaft 11 projecting from the rear section B is rotatably mounted in the front section A. An hydraulic ram 13 tips the skip 12, or a gravity tipping skip may be used. A hydrostatic pump 19 driven by the engine 18 supplies individual hydraulic motors driving the front and/or rear wheels. Each motor forms the hub of the associated wheel and rotates on a stub shaft 24. Means may be provided to prevent wheelspin and, if all the wheels are driven, for driving only the front wheels when required. A pair of pedals 33 are connected through a cord 34 and pulley 35 to the pump swashplate for controlling speed and direction. Hydrostatic braking provided by the motors 23 is supplemented by handapplied disc brakes 16 acting on the front wheels. The rear wheels are mounted in stirrups 25 steerable by a steering column 32 through Ackerman linkage. The wheels may alternatively be driven through mechanical transmission means.
Patent ES-337745-A1 (ES)
Title: Wall structures of magnetohydrodynamic conversion ducts and method of fabrication of said structures
IPC: H02K44/12
Filed: 1967-03-08
Abstract: An MHD generator duct has thin internally projecting segments of refractory metal forming the electrodes assembled in alternate relationships with segments of refractory material. The refractory metal electrodes E are formed of a thin projection b brazed into a foot portion a which is embedded in grooves 3 in the ceramic refractory material and are constructed such that the ratio of the projection h to the distance d between electrodes is 1 : 5. The segments are between 20 and 50 microns thick. In forming a cylindrical duct, tubes of refractory material are cut lengthwise along a chord and the two tubes having the largest cross-section are assembled together with an interfitting scarf joint to provide a cylindrical tube, Figs. 6 and 7 (not shown). After the electrodes have been fitted the complete assembly is enclosed in a concentric refractory tube to reduce leakage. In a modification the thin annular electrodes are assembled between rings of refractory material and the assembly enclosed in a support tube of carbon silicide. After sintering at 1600 C. to bond the metal segments to the ceramic the assembly is enclosed in a concentric refractory tube.
Patent ES-337885-A1 (ES)
Title: Herbicides containing Substituted Acid Amides
IPC: C07C233/00
Filed: 1967-03-11
Abstract: Herbicidal compositions comprise a solid or liquid carrier and a compound of the formula R-NH-O-Z where R is a bi-, tri- or tetra-cycloaliphatic radical having 7-12 carbon atoms and Z is an aliphatic radical having 1-6 carbon atoms which may be substituted by Cl, Br or CN, or a cyclopropane radical.
Patent ES-340754-A1 (ES)
Title: Ribbon-type razor with a specific type spool
IPC: B26B21/26
Filed: 1967-05-19
Abstract: A magazine 12, Fig. 1, comprises an apertured ribbon blade 20 coiled on a supply spool 17 and movable across a shaving bridge 26 on to a take-up spool 18, each spool having an axially extending cross slot 56, Figs. 4 and 6, or 76, Figs. 9 and 10, defining a hinge portion 57, Fig. 6, or a flexible hinge 82, Fig. 10, a toothlike projection 60, Figs. 4 and 6, being formed integrally with a tab 63 supported from the main body of an annular drum 45 or a tooth-like projection 84, Figs. 9 and 10, extending from an inner wall 81 of a flexible tab 80 across the slot 76 partly into a cylindrical bore 85 through an annular drum 70, the tab 63 being movable away from the drum 45 and the tab 80 being movable away from the drum 70 to permit one of the apertures 42 in the blade 20 to engage the projection 60 or 84 thereby to hold the blade to the spool for winding on the drum thereof. The bridge 26, Fig. 1, is formed with inclined ends to urge the blunt edge 41 of the blade rearward of the bridge to engage a shoulder 30 whereby the sharpened edge 40 of the blade is tensioned. The take-up spool 18 is provided with flexible pawl members 72, 73, Fig. 9, which co-operate with ratchet teeth formed inside the magazine cover 22, Fig. 1, to limit rotation of the spool 18 only to the direction which pulls the blade from the supply spool 17. Outwardly of a guide flange 71, Fig. 10, the take-up spool is formed with ratchet teeth 75 which co-operate with the pawl member carried in the advancing lever 23, Fig. 1. In a modification, Figs. 17 to 21 (not shown), the supply spool (110) includes a movable portion (112) joined to the main body (113) of the spool through hinges (114, 115), the main spool body (113) having integral therewith a tooth-like projection (121), the main spool body being provided with a groove (122) forming a die to receive a punch (123) carried on the movable portion. The movable portion has an aperture (125) to receive the free end of the projection (121) when the movable portion is moved into locking engagement with the main spool body and at the same time a portion (133), Fig. 21, is severed from the blade. In another modification, Figs. 22 to 25 (not shown), a modified take-up spool (140) is similar to the supply spool (110) of Figs. 17 to 21 except that the hinges (143, 144) are disposed so as not to interfere with the ratcheting action of the teeth (151) with the pawl members carried on the advancing lever 23, Fig. 1. In further modifications, Figs. 26 to 35 (not shown), the supply and take-up spools (200 and 230) each have a slot (220 and 239) to facilitate machine handling and the tooth-like projections (207 and 241) each have a pocket (218 or 242) to receive a locking lug (217 or 240). Reference has been directed by the Comptroller to Specification 1,112,728.
Patent ES-345083-A1 (ES)
Title: Fluorocarbon polymer release coating
IPC: A47J36/02
Filed: 1967-09-15
Abstract: An article comprising a metal substrate having a polymeric release coating on the surface thereof, the coating comprising a continuous phase of an inert fluorocarbon polymer having a passive non-adherent surface in which there is a discontinuous phase of smoothsurfaced spheroidal or spherical vitreous beads e.g. glass, Pbo, CdO, the beads having diameters in the range of from 10 to 500 microns, a substantially single layer of the beads being embedded in the polymer so that adjacent to, or at the coating surface, there are at least 100 beads per square inch may be prepared by coating the substrate with a composition comprising a suspensoid of polymer and beads in a dispersion vehicle. The release coating may comprise a dried, fused layer of polymer containing the beads and bonded to the substrate with the aid of a primer and a second layer of dried, fused polymer bonded to and uniformly covering the first layer, the combined thicknesses of the two layers being approximately equal to the average diameter of the beads. In the Examples steel fry pans, aluminium cooking fry pans and aluminium panels were coated with compositions comprising polytetrafluoroethylene, water. CrO 3 , H 3 PO 4 and glass beads.
Patent ES-353915-A1 (ES)
Title: Hydrostatic transmission control system
IPC: B62D11/18
Filed: 1968-05-14
Abstract: A hydrostatic transmission comprising a variable displacement pump 31 in a closed loop 33, 34 with a variable displacement motor 32 is driven by an engine driving a positive displacement pump 70 with an output proportional to engine speed supplying fluid through a venturi 72 and a first chamber 75 and then a speed control valve 79 in parallel with an underspeed valve 80 to a second chamber 76 at a lower pressure due to restriction in the valve 79, the difference in pressure between the chambers 75, 76 being converted by a sensor 90 to a mechanical output adjusting a servo 37 controlling the pump 31 displacement. The underspeed valve 80 may be connected to the venturi 72 so as to open as the engine speed drops to cause the pump 31 displacement to reduce. The valve 80 may be in series with an idling valve 155 which closes when the engine is idling. The control may also vary the motor 32 displacement by a sensor 100 so that as the pressure differential increases the pump 31 displacement is first increased to a maximum and the motor displacement is then reduced. Steering of a two pump-motor transmission for a track-laying tractor may be effected by sensors 161 mounted on linkwork joining the sensors 90 to the pumps 31. The linkwork may comprise a link 65 pivoted to the sensor 90 and at 164 to two plates 162 pivoted at 163 and connected by a link 170 to the pump servo 37. Each sensor 161 is mounted on its plate 162 so that when actuated it moves the pivot of the link 170 on a path across 163. The sensors 161 are selectively controlled by a valve 175. Override control.-The pressure difference between the chambers 75, 76 may be reduced by an override valve operated either if excess pressure build up in the hydrostatic loop 33, 34 signalled via a line 255 to a sensor 136, or if a pedal 134 is depressed. Overspeed control.-If the engine overspeeds the pressure differential in lines 71, 72a of the venturi will actuate a valve 140 to apply the brakes 149. Relief and replenishing of the hydrostatic loop 33, 34 may be effected by the arrangement of ball valves and orifice units of Fig. 2 or of Figs. 8 and 9 (not shown) claimed in Specification 1,237,564. The ball valves of Fig. 2 may be replaced by the variable orifier valve of Fig. 13 (not shown) claimed in Specification 1,237,562.
Patent ES-361235-A1 (ES)
Title: Gain control biasing circuits for field-effect transistors
IPC: H03G3/18
Filed: 1968-12-09
Abstract: An amplifier circuit comprises a semiconductor device having source and drain electrodes and a plurality of gate electrodes, means for applying input signals to a first gate electrode 16 and means for applying a gain controlling potential to a second gate electrode 18. A resistor 36 is connected to the source electrode such that changes in the gain controlling potential tend to change the current through the resistor and hence the voltage between the source and the first gate electrode, and the arrangement is characterized by circuit means, i.e. resistor 30, for applying a portion of the gain controlling potential to the first gate electrode. In the embodiment the portion of the gain controlling potential applied to the first gate electrode is sufficient to keep the difference in potential between this electrode and the source electrode constant. A further fixed bias may be applied to the source electrode, by means of resistors 48, 50 to enable the use of a gain controlling potential which does not change sign over the gain control range. The arrangement is intended to maintain the voltage between the source and first gate electrode constant as the source to drain current is varied by the gain control potential.
Patent ES-361805-A1 (ES)
Title: Time division multiplex switching system
IPC: H04Q3/58
Filed: 1968-12-12
Abstract: In a T.D.M. system signals from a plurality of substations are sampled simultaneously, the destination addresses are added to each sample at the exchange and the samples are simultaneously forwarded to the appropriate receiving substations. As described the substations are arranged in groups. During each time slot amplitude modulated speech samples taken from one substation of each group are coded to P.C.M. form. After conversion of each to parallel form all P.C.M. samples in a single time slot are entered during the next time slot together with the destination group addresses, into different stages of a domain wall shift register of the type disclosed in Specification 1,185,731, and the contents of the shift register are circulated once during that time slot. As a sample passes the stage of the register associated with the wanted group a comparator associated with that group recognizes the stored destination group address and gates the associated P.C.M. sample out to a store common to the group. During the following time slot these samples are decoded to amplitude form and stored until the next time slot in which they are passed to the destination substations. Calls between substations in the same group are established via dummy substations in another group, e.g. the trunk groups. The system described is one P.B.X. of a number in a system of the type described in Specification 1,029,204 and employing a common central control. The common control processes all the switching information and supplies data relating to the connections to be established within a P.B.X. (e.g. substation to digit trunk during dialling or substation to substation during speech &c.) during each time slot. Each P.B.X. is controlled by a reciroulating store which reads out the identities of the gates to be opened during each time slot. Alongside the address of each substation is stored a coded representation of the amplitude level required and this representation is used to switch one of a group of amplifiers into the output of the P.C.M. decoder. The substations are of the 4 wire type and each group of substations is connected via a send bus and a receive bus to a coder and a decoder associated with the group. The recirculating store determines via translator which particular substations within a group are to be connected to the send bus and to the receive bus respectively during each time slot. Although in the system detailed the signal transmitted between substations is speech, data and wide band signals such as television and carrier facilities are mentioned. Many of the techniques employed are detailed in Specification 921,384.
Patent ES-363014-A1 (ES)
Title: Ventilating fan unit
IPC: F04D25/16
Filed: 1969-01-28
Abstract: A ventilator mounted over a window or wall opening comprises casings 10, 11 having recessed portions 12, 13 which house centrifugal flow impellers 16, 17 driven by a common motor 15, and outlet ducts 22, 23 which respectively direct atmospheric air upwardly into the room and room air downwardly to atmosphere, the ducts 22, 23 being arranged perpendicularly to the fan motor axis and the motor axis being obliquely inclined to the plane of the window or wall.
Patent ES-370187-A1 (ES)
Title: Support system for membranes used in the reverse osmosis process
IPC: B01D/
Filed: 1969-08-02
Abstract: A support for tubular membranes 17 employed in reverse osmosis comprises particles 14 bonded by a resin 15. The resin is usually coated onto the particles with the help of a catalyst. Voids 16 allow egress of pure water. The membranes 17 may be of modified cellulose acetate, e.g. aqueous magnesium perchlorate and acetone modified cellulose acetate. The filler particles 14 may be sand, zircon, quartz, beryl, talc, glass, limestone, calcium silicate or any other granular structure. Especially suitable are hollow spherical glass beads, vermiculite, expanded perlite and ground pumice stone. The resin may be phenolic polyglycidyl ethers polyesters silicones and polystyrenes polyimide and polyamide. Solvents used to promote coating may be an alcohol, ketone, aromatic hydrocarbon and the normally liquid organic solvents of the N, N-dialkylcarboxylamide class. Examples of the catalyst are given.
Patent ES-376355-A1 (ES)
Title: Compacting apparatus for fibrous webs
IPC: B31F1/00
Filed: 1970-02-07
Abstract: Apparatus for compacting paper and the like comprises a hard-surfaced roller 11, an elastomeric-surfaced element 13 supported so that the element forms a pressure nip with the roller, means to drive the element so that the surface speed is less than the speed of the roller, the elastomeric element comprising means adapted to cause maximum elongation of the surface of the element, under nip loading, as the element passes through the nip, in a direction oblique to the axis of the hard-surfaced roller. The elastomeric-surfaced element may be a blanket or, as shown, a roll covering, preferably of rubber. The means adapted to cause maximum elongation may be inelastic fibres disposed obliquely, or grooves cut obliquely, to the edges of the belt or roll surfacing, or annular grooves cut at an oblique angle to the surface. The two rolls may be driven by separate motors (Fig. 2, not shown), or roll 11 may be driven and roll 12 electromagnetically braked. Two such apparatuses, arranged so that their maximum elongations are at right angles, may be arranged in the path of the paper.
Patent ES-384550-A1 (ES)
Title: Method and apparatus for feeding high speed presses
IPC: B21D43/11
Filed: 1970-10-15
Abstract: This invention is addressed to a new and improved method for automatic precision feeding of high speed presses for mechanically working metal strips in which the metal strip is fed to the press in a precise longitudinal position relative to the die stamp with recovery of elongation due to the effect of the die stamp wherein the strip is gripped between the jaws of at least two movable grips, one above the press and the other below the press in the direction through which the strip is advanced, whereby the movable grips are displaced to advance the strip and the strip is then gripped by at least two fixed grips, one above and another below the press, while the movable grips are displaced to their starting position in which the fixed grips below the press open before the movable grips close while the fixed grip above the press opens as the movable grips have closed to permit recovery of the elongation of the strip.
Patent ES-392685-A1 (ES)
Title: Double delivery lance for refining the steel in the converter processes
IPC: C21C5/46
Filed: 1971-06-26
Abstract: Double-delivery refining lance comprising: a main conduit, in a central location with its axis coinciding with the lance axis, diverging into a set of nozzles a secondary outer annular conduit disposed concentrically about the main conduit diverging in its turn into a set of nozzles, as well as annular conduits, disposed concentrically about the above mentioned main and secondary conduits for cooling fluid input and output respectively. The discharging nozzles of the main conduit diverge conically with respect to the lance axis downwardly by an acute angle and are arranged symmetrically also the discharging nozzles of the secondary circuit are downwardly inclined with respect to the lance axis by an acute angle not necessarily coinciding with the former and symmetrically arranged the inclination of the discharging nozzles of the main conduit and respectively of the secondary conduit, and their respective locations, longitudinally and radially with respect to the lance axis, are such as to make the lance particularly useful in converters rotating around a vertical axis.