baber/WOPTO huggingface dataset:
Patent ES-201241-A1 (ES)
Title: Improvements in and relating to the production of cellulose triesters
IPC: C08B17/02
Filed: 1952-01-03
Abstract: In the production of cellulose triesters (particularly the triacetate) by circulating a fatty acid anhydride in an inert solvent through a static bed of cellulose so as to maintain its fibrous form, said cellulose having been pre-treated with the fatty acid corresponding to the anhydride, the esterification liquid is initially free from an esterification catalyst or contains part only of the catalyst to be used, and is circulated until the water present as moisture in the cellulose has reacted with the anhydride substantially before any esterification of the cellulose has taken place, whereupon all or the remaining quantity of catalyst is added and liquid is circulated until esterification is complete. When the circulating liquid contains no catalyst initially, the catalyst may be added to the liquid at a point removed from the cellulose bed and the liquid circulated through a heat exchanger so as to by-pass the cellulose bed, whereby the heat of the reaction between the water and anhydride, initiated by the catalyst, is removed before the esterification liquid, containing the catalyst, is recirculated through the cellulose bed to effect esterification. Alternatively, the catalyst may be added gradually while the esterification liquid is being circulated through the bed of cellulose. In another form of the invention the esterification liquid may contain initially from 10 to 30 per cent, preferably 20 to 25 per cent, of the total catalyst to be used, and this liquid is circulated through the bed of cellulose until the water-anhydride reaction is complete. Then the remainder of the catalyst is added and circulation is continued to effect esterification of the cellulose. Suitable catalysts are sulphuric and perchloric acids or mixtures of these. The inert solvent may be carbon tetrachloride, benzene or toluene. The cellulosic material may be in the form of flat wood pulp chips as described in Specification 699,026. The pretreatment of the cellulose with fatty acid may be effected by circulating the acid through the preformed bed of cellulose, or the cellulose may be treated before being formed into a bed, e.g. by steeping it in the acid and then draining off the excess. Specifications 207,562, 332,607, 332,608, [all in Class 2 (ii)], 387,533, 407,355, 412,710, 439,245, 464,843, 684,975 and 19210/46 (as open to inspection under Sect. 91, and corresponding to French Specification 929,968) also are referred to. The Provisional Specification refers also to Specification 280,493, [Class 15 (ii)], and to U.S.A. Specification 2,033,716.
Patent ES-235454-A1 (ES)
Title: Purification of pyrethrum extracts and the production of synergised pyrethrin compositions
IPC: A01N65/12
Filed: 1957-05-13
Abstract: Pyrethrin-synergist compositions are obtained by purifying pyrethrum extracts by co-distillation with piperonyl butoxide, butoxy-ethoxyethyl piperonylate, or a 2-(2-ethoxyethoxy-) alkyl-3: 4-methylenedioxyphenyl acetal of acetaldehyde where the alkyl is propyl, butyl or amyl, preferably in which the piperonyl compound is in excess of the pyrethrin content and the extract being of at least 20% strength and the co-distillation being performed under a vacuum of not more than 0,15 m.m. of mercury in a long path distillation process. Prior to the co-distillation, the volatiles in the extract boiling below the pyrethris may be stripped e.g. by degassing and distilling the degassed product.
Patent ES-258050-A1 (ES)
Title: An improved manufacture of inorganic thiocyanates
IPC: C01C3/20
Filed: 1960-05-13
Abstract: Thiocyanates are prepared by reacting thiocyanic acid, dissolved in an inert substantially water-immiscible liquid, with a metal, an oxide, or a hydroxide, especially sodium, calcium, and barium hydroxides. The water-immiscible liquid is preferably an ether, for example diethyl ether and especially di-isopropyl ether. Benzene, chloroform, higher molecular weight alcohols, for example amyl alcohol, and higher molecular weight amines are also referred to. Mixtures of solvents, especially containing higher molecular weight amines and inert hydrocarbons, e.g. benzene, may also be used. The metal, oxide, or hydroxide may be supplied to the reaction as a solution or a suspension, or in the form of a solid bed, through which the acid may percolate. A solvent for the thiocyanate may flow through the bed simultaneously or subsequently to recover the thiocyanate. The thiocyanic acid solution may be obtained by reacting a thiocyanate salt, e.g. the sodium or ammonium salt, with an aqueous strong acid, e.g. sulphuric acid, in the presence of the water-immiscible liquid, which extracts the acid as formed. The process may be applied to the regeneration of the concentrated thiocyanate solutions employed in acrylic fibre production. Iron may be removed from the thiocyanic acid solution by passing it through an anion exchange resin, e.g. a sulphonated polystyrene divinyl benzene copolymer, which may be regenerated by sulphuric acid. In an example, a contaminated sodium thiocyanate solution is passed together with sulphuric acid in countercurrent to di-isopropyl ether. The ether, now containing thiocyanic acid, is passed through an ion exchanger to remove iron, and is then reacted with sodium hydroxide solution to give a pure sodium thiocyanate solution and ether, which latter is recycled.
Patent ES-296656-A1 (ES)
Title: Process for production of glacial acrylic acid by azeotropic distillation with a water entrainer
IPC: C07C51/00
Filed: 1964-02-20
Abstract: Acrylic acid (at least 99%) is prepared from a dilute aqueous solution by distillation under vacuum in the presence of an inert stripper which forms with the water vapour a mixture of constant composition which separates on condensation into two layers. Benzene, toluene, esters of acrylic and methacrylic acids, acrylonitrile, monochlorobenzene, carbon tetrachloride and orthodichlorobenzene are suitable. The process may be continuous or discontinuous and a suitable apparatus is described.
Patent ES-302187-A1 (ES)
Title: Radiant heating apparatus
Inventor: VEZZOLI L
IPC: F24C1/04
Filed: 1964-07-17
Abstract: A gaseous or liquid fuel fired apparatus for heating by radiation and convection comprises a easing 1 containing a duct system 2 for the circulation of burnt gases and connected to a flue 21, a radiation burner comprising a radiation plate 7 having perforations for the passage of combustible material from a mixing chamber 8, a preheating chamber or vaporizer tube 14 fixed within the gas circulation system above the mixing chamber and associated at one end with the mixing chamber and open at the other end, this end accommodating the nozzle 11 of a fuel feed pipe 10. An electric resistance 18 is positioned below the preheating chamber 14 for the primary ignition of the combustible material passing through the plate. A metallic grid 19 is fixed adjacent the radiation plate 7, and a plate 6, transparent to infra-red radiation is sealed in an opening 5, in the duct system, opposite the burner. An adjustable orifice 17, for the admission of air to the mixing chamber, is provided either at the outlet end of the preheating chamber or in the mixing chamber. The burner and the duct system are kept under a partial vacuum. The casing 3 surrounding the duct system 2 acts as a convection surface by transferring heat from the burned gases to the air within the casing 1 which air can pass through the perforations in the casing to the space to be heated.
Patent ES-339206-A1 (ES)
Title: Benzenesulfonyl-ureas and process for preparing them
IPC: C07D335/02
Filed: 1967-04-12
Abstract: Novel compounds of the formula <FORM:1122919/C2/1> (wherein R is H, lower alkyl or phenyl lower alkyl R1 is C2- 8 alkyl, C2- 8 alkenyl, C2- 8 mercaptoalkyl, C4- 8 alkoxyalkyl, C4- 8 alkylmercaptoalkyl, C4- 8 alkylsulphinylalkyl, phenyl lower alkyl, phenylcyclopropyl, cyclohexyl lower alkyl, cycloheptylmethyl, cycloheptyl ethyl, cyclo-octylmethyl, C7- 9 endoalkylenecyclohexyl, C7- 9 endoalkylenecyclohexenyl, C8- 10 endoalkylenecyclohexylmethyl, C8- 10\t endoalkylenecyclohexenylmethyl, lower alkyl cyclohexyl, lower alkoxy cyclohexyl, C5- 8 cycloalkyl, cyclohexenyl, cyclohexenylmethyl, or a C4 or C5 heterocyclic ring containing one O or S atom and up to 2 double bonds and linked directly or via a methylene group to the N atom X is H, halogen, lower alkyl, lower alkoxy CF3 or NO2 Y is a C1- 4 hydrocarbon chain n is 1, 2 or 3 U is O or S and Z is an aliphatic or cycloaliphatic hydrocarbon of at most 6 carbon atoms, a phenyl or a benzyl radical the word "lower" referring to groups containing at most 4 carbon atoms) and salts thereof are prepared (1) by reaction of an appropriate amine R1NH2 or a salt thereof with an appropriately substituted benzenesulphonyl-isocyanate, -carbamic acid ester, -thiocarbamic acid ester, -carbamic acid halide, or -urea (2) by reaction of an R1-substituted isocyanate, carbamic or thiocarbamic acid ester, carbamic acid halide or urea with the appropriately substituted benzene sulphonamide (3) by reaction of an R1-substituted urea, isourea or isothiourea ether or parabanic acid with the appropriately substituted benzenesulphonyl halide and hydrolysis of the product (4) by exchange of the S atom in a correspondingly substituted benzenesulphonyl thiourea for an O atom (5) by oxidation of a corresponding benzenesulphinyl-urea or benzene sulphenylurea or (6) by acylation of appropriate RHN-Y-C6H5-SO2NHCONHR1 compound. These methods and variants thereof are described and exemplified. The benzenesulphonyl ureas of the invention, which are stated to have a blood sugar lowering, i.e. hypoglycemic, action, may be incorporated in pharmaceutical compositions for oral administration.
Patent ES-341757-A1 (ES)
Title: Apparatus for the Examination of Photographs.
IPC: G03B21/00
Filed: 1967-06-14
Abstract: Projection apparatus for the analysis of photographs comprises an optical system mounted on a frame 5 movably supported by two carriages 6 and 8 for motor-driven orthogonal motion relative to each other, and separate objectives 14, 15 whereby images of film 24 are projected at different enlargements on to screens 18 and 19, a reference image of reticule 26 being superposed on the film images. Films for analysis, as of cloud chamber tracks, are carried in magazines 21, 22, 23 axially shiftable by control button on the projection cabinet to bring a selected film into alignment with the optical system. Step-by-step unwinding of the film is also controlled by the operator. The co-ordinates of the carriage positions may be automatically recorded using rotary scales on the driving screws, and photoelectric counting devices.
Patent ES-344703-A1 (ES)
Title: Device for the circulation and the aeration of fluids
IPC: F16K31/524
Filed: 1967-09-02
Abstract: A rotor for aerating and circulating liquids especially in froth flotation comprises a plurality of generally radial hollow vanes 6 shrouded by discs 7, 8, and externally shaped to provide non-turbulent flow through the rotor. Pulp is circulated as at 10 through the annular aperture 9, and air is sucked or forced down the bore 2 of the shaft 1 and expelled from orifices 11 at the ends of the vanes, which may terminate radially as shown, or at an angle to the radius, and need not extend to the periphery of the discs (see Figs. 4-7, not shown). The ducts 5 in the vanes may increase in crosssection in the direction of air-flow, see Fig. 3 (not shown).
Patent ES-348347-A1 (ES)
Title: Splashing doll
IPC: A63H13/12
Filed: 1967-12-16
Abstract: which operate when fluid is introduced into the toy. In the doll 10 liquid entering orifice 116 actuates the fluid .switch 18 causing the motor 40 to drive, .through a worm, 44 and gearing, a shaft 62 which moves the head of the doll and cranks 30 which co-operate with recesses 32 to move the arms 12 of the doll. The switch is operated by placing the doll in a bath of water.
Patent ES-361345-A1 (ES)
Title: Method for treating textiles
IPC: D06B5/00
Filed: 1968-12-12
Abstract: Filamentary textile materials are treated with a liquid, e.g. by washing, bleaching or dyeing by submersion in the liquid to which a pressurized gas in a subdivided state is continuously added in an amount of from 0.1 to 10 1/min. per 10,000 1/min. of treatment liquid. The gas which may be air is preferably injected into the liquid stream through at least one nozzle at an injection velocity of from 100-400 m/sec. Apparatus for carrying out the process comprises a treatment autoclave 1 within which a horizontally mounted perforated cylinder 3 is situated upon which the material is wound. An injection nozzle 10 supplies air via the liquid conduit 6 to the cylinder 3 through which passes a homogeneous mixture of gas and liquid. A constant pressure is maintained in the auotclave by a pump 24 and relief valve 25. Ancilliary equipment is provided to maintain the flow of gas and liquid.
Patent ES-363114-A1 (ES)
Title: Preparation of terephthalic acid
IPC: C07C51/265
Filed: 1969-01-30
Abstract: Terephthalic acid is prepared by the liquid phase oxidation of p-xylene with molecular oxygen or molecular oxygen-containing gas at a temperature of 150 to 200 C. and a pressure of 3 to 15 kg./cm.2g. in the presence of a catalyst comprising cobalt, manganese and bromine characterized in that (i) the amount of manganese is from 2 x 10-7 to less than 1 x 10-5 gram-atom per gram of acetic acid, (ii) the amount of bromine is in the range 5 x 10-6 to 5 x 10-5 gram-atom per gram of acetic acid, (iii) the atomic ratio of cobalt to manganese (Co/Mn) is from 1 to 100. The cobalt and manganese may be present as one or more of their acetates, bromides, carbonates, naphthenates or acetylacetonates the bromine may be present as one or more of hydrobromic acid, hydrogen, sodium, potassium, ammonium, manganese or cobalt bromides, methyl benzyl bromide, bromoacetic acid or tetrabromoethane.
Patent ES-365439-A1 (ES)
Title: Development apparatus
IPC: G03G15/09
Filed: 1969-03-29
Abstract: A magnetic roll 57 picks up a coating of developer from a trough 51 the coating being trimmed at 71, charged at 73, smoothed at 75 and then thrown into contact with an image bearing drum (12) Fig.4 (not shown) by oscillating ribbons 80. Ribbons 80 are oscillated by means of a magnet 85 rotating within roll 57. Roll 57 comprises ring magnets 59 spaced by ring insulators 61 and has a non- magnetic cover 65. The developer comprises electro-scopic resinous pigment particles attached to magnetic particles. The magnetic particles may be Fe or its alloys or oxides, Co or its alloys, or magnetic alloys of Al, Ag, Cu, Mg, Mn. A method of coating the magnetic particles with the resin is described comprising crushing, mixing, cooling and dividing.
Patent ES-372700-A1 (ES)
Title: Vacuum operable units for use with ignition distributors
IPC: F02P5/10
Filed: 1969-10-09
Abstract: A vacuum-operable unit for use with an ignition distributor in which a casing is divided into first and second chambers by a resilient diaphragm. A plunger is slidably received in the first chamber, with the plunger being secured at one end to the diaphragm and extending at its other end from the first chamber for connection to a distributor. Axial movement of the plunger varies the ignition timing of the distributor. First and second conduits are provided in communication with the first and second chambers respectively, and resilient means within one of the chambers resists movement of the diaphragm in a direction to reduce the volume of that chamber. Sealing means acts between the wall of the first chamber and the plunger to fill the first chamber while allowing relative movement between the plunger and the wall of the first chamber, with the sealing means being constituted by a pair of annular members secured to the plunger and the wall of the chamber respectively, and interconnected by a flexible tubular member. The diameter of the flexible tubular member of the sealing means tapers from a maximum diameter adjacent one annular member to a minimum diameter adjacent of the other annular members and the tubular member is turned inside out intermediate its ends so that part of the tubular member surrounds a further part of the member, and the tubular member together with said annular members constitutes a rolling seal.
Patent ES-375179-A1 (ES)
Title: Device for producing nonwoven carpets
IPC: D04H11/04
Filed: 1970-01-05
Abstract: Device for the production of nonwoven carpets wherein two folding blades are each connected to a system of oscillating levers, whereby each system is controlled by a set of cams in such a way that one folding blade is temporarily maintained in its lowest position whilst the second folding blade starts a downward movement and deviates the set of threads.
Patent ES-378612-A1 (ES)
Title: Process for manufacturing decorative products of aluminum and alloys of aluminum
IPC: B32B15/01
Filed: 1970-04-15
Abstract: A process for manufacturing a composite sheet having a surface of anodized aluminum or alloy of aluminum having different colors in the anodized surface in which anodization is effected on a composite sheet formed of a covering sheet having surface heterogeneities of composition and a support plate having the physical and mechanical properties desired in the final product, and rolling the composite after surface treatment to effect a reduction of at least 50-fold followed by anodization.
Patent ES-392470-A1 (ES)
Title: Spring loaded pattern drum for ease of pattern jack insertion
IPC: D04B15/74
Filed: 1971-06-08
Abstract: A pattern drum for a knitting machine has two overhanging rings or flanges to retain the pattern drum jacks against the drum, one of the rings or flanges being axially movable to allow fitting of the pattern drum jacks. The movable ring may be resiliently urged into to the pattern drum jack retaining position.
Patent ES-392736-A1 (ES)
Title: Higher alkano yl-propanediol-(1,3)-2 -trimethylammonium-ethyl phosphates
IPC: C07F9/09
Filed: 1971-06-30
Abstract: Compounds of the formula WHEREIN N IS AN INTEGER FROM 16 TO 25, INCLUSIVE THE COMPOUNDS ARE USEFUL AS IMMUNOLOGIC ADJUVANTS.
Patent ES-403217-A1 (ES)
Title: Thread-feeding, tension-regulating device for straight knitting machines
IPC: D04B15/44
Filed: 1972-05-26
Abstract: Thread-feeding, tension-regulating device for straight knitting machines, comprising a tensioning arm having a threading member at its free end, supplementing those of the associated machine, with resilient means tending to lift the free end of the supplemental arm, and a device for multiplying the displacements, interposed between a movable application point of the resilient means and that of the pressure exerted on the body of the supplemental arm. The latter performs a substantial angular displacement despite of a very small displacement of the movable application point, the pressure of the resilient means thus remaining virtually uniform along the path of the angular displacement. The inventive device can take various constructional forms.
Patent ES-413538-A1 (ES)
Title: Variable pressure hydraulic system
IPC: F15B11/05
Filed: 1973-04-10
Abstract: A hydraulic system in which a motor is operated by a variable displacement pump in which displacement is regulated by a control valve which is sensitive to the pressure at the hydraulic motor to maintain the pump outlet pressure higher than the motor pressure. A valve in the pilot line between the motor and control valve is responsive to a predetermined movement of the motor to block fluid communication between the motor and control valve so that when the motor reaches a predetermined position, the pressure in the system is reduced.
Patent ES-415538-A1 (ES)
Title: Drafting roller construction
IPC: D01H5/80
Filed: 1973-06-04
Abstract: An improved drafting roller construction for drafting textile fibers and comprising an elongated supporting roller having an outside cylindrical surface and spaced annular grooves extending inwardly from the outside surface and a sleeve-like cot having an inside surface defined by a plurality of alternating channels and projections extending substantially along its full length with adhesive means between the inside and outside surfaces fixing the cot and roller together in a high-strength manner.
Patent ES-431928-A1 (ES)
Title: Method of producing interlocking elements for slide fasteners
IPC: B29D5/04
Filed: 1974-11-14
Abstract: A method of producing a ladder-like structure for use as a row of interlocking elements for a slide fastener is disclosed. A pair or pairs of elongated connecting members are advanced in parallel alignment along their length at predetermined intervals. For the pair or pairs of connecting members, a plurality of element-forming spaced strips of a thermoplastic material are fed simultaneously for attachment transversely to the connecting members. The result is to produce a ladder-like structure at increased rate of speed which is suitable for use as a row of fastener elements.
Patent ES-435286-A1 (ES)
Title: 7-Bromoquinoxal-6-yl-(thiono)-(thiol)-phosphoric and (phosphonic) acid esters of ester-amides
IPC: A01N57/08
Filed: 1975-03-04
Abstract: 7-Bromoquinoxal(6)yl-(thiono)-(thiol)-phosphoric acid esters and ester-amides of the formula IN WHICH R is alkoxy with 1 to 4 carbon atoms, alkyl with 1 to 3 carbon atoms or dialkylamino with 1 to 3 carbon atoms per alkyl moiety, R' is alkoxy with 1 to 4 carbon atoms, alkylmercapto with 1 to 6 carbon atoms or dialkylamino with 1 to 3 carbon atoms per alkyl moiety, and X is oxygen or sulfur, WHICH POSSESS INSECTICIDAL AND ACARICIDAL PROPERTIES.
Patent ES-436006-A1 (ES)
Title: Bridgehead nitrogen analogs of poly-chlorinated cyclic hydrocarbon insecticides
IPC: A01N43/90
Filed: 1975-03-25
Abstract: A compound having one of the structural formulae: } }a) < IMAGE > and hydrogenated,chlorinated andbrominated derivativesthereof} }b) < IMAGE > } }c) < IMAGE > } }d) < IMAGE >wherein R is H orlower alkyl } }e) < IMAGE > wherein X is Cl orBr and n is an integerfrom 0 to 6} }f) < IMAGE > wherein X is Cl orBr and m is an integerfrom 0 to 8 } }g) < IMAGE >and hydrogenated,chlorinated and brominatedderivatives thereof and,} }h) < IMAGE >} } useful as insecticides.}
Patent ES-437907-A1 (ES)
Title: Pneumatic blind riveter with cascaded pistons
IPC: B21J15/36
Filed: 1975-05-23
Abstract: A blind riveter has a housing with a tubular body and a nosepiece containing a rivet-mandrel-gripping chuck extending transverse to this body. The body is provided with three in-line tubes constituting a liner separated by two partitions so as to form three compartments each provided with a respective longitudinally reciprocal piston. A stem interconnects the three pistons and is provided at the forward end with an end piece engaging a roller on the long arm of a bell-crank lever pivoted on the housing and having a short arm pivoted on a puller body carrying the rivet-gripping chuck. A collar on the rear end of the housing is provided with a control valve that pressurizes all three of the chambers in back of the pistons while pressurizing the extreme rear chamber and the other two chambers through a passage formed through the same interconnecting pistons, and can pressurize the chamber in front of the rear piston so as to retract all three pistons depending on the position of a trigger constituting a pilot valve controlling the position of a spool valve.
Patent ES-441104-A1 (ES)
Title: Pneumatic impact drilling tool
IPC: E21B4/14
Filed: 1975-09-19
Abstract: A pneumatically operated impact drilling tool for rotary drilling, includes a reciprocating hammer, an anvil positioned under the hammer and a feeder means extending through the hammer. The drilling tool is connected in a string of drilling pipe and high pressure pneumatic fluid flowing through the drilling pipe operates the impact tool. The feeder directs and times the flow of fluid through ports in the hammer to create a first pressure zone to raise the hammer off the anvil, and a second pressure zone above the hammer to drive the hammer down against the anvil to create an impact on the drill bit. Exhaust ports in the hammer exhaust the fluid from the second pressure zone.