baber/WOPTO huggingface dataset:
Patent EP-0005571-A1 (EP)
Inventor: HAAFKENS RUDOLF
IPC: C09K8/62
Filed: 1979-05-10
Abstract: Amethod for forming channels of high fluid conductivity in relatively hard acid-soluble formation parts around a borehole, said method comprising the sequential steps of:
     1) installing a casing in the well, and introducing in the wall of the casing a plurality of perforations arranged over at least part of said well where facing the formation;   2) inducing in the formation a fracture containing a viscous fluid with propping agent at a fluid pressure at which the fracture is kept open;   3) injecting an aqueous acid solution through the perforations into the fracture at a pressure at which the fracture remains open, the viscosity ratio between the viscous fluid and the acid solution being chosen such that the viscous fluid is displaced in the fracture in an unstable manner by the acid solution;   4) continuing the injection of the acid solution through the perforations until channels have been etched in areas of the fracture walls that face each other;   5) lowering the fluid pressure in the fracture, thereby allowing the fracture walls to be displaced towards each other; and   6) lowering the viscosity of the viscous fluid.
Patent EP-0012456-A1 (EP)
Inventor: RUDOLPH PAUL DIPL-ING
IPC: C10J3/84
Filed: 1979-10-25
Abstract: Verfahren zum Behandeln von wasserhaltigem Kondensat (14) aus der Kühlung des Rohgases (6) der Vergasung (1) fester Brennstoffe unter einem Druck von 5 bis 150 bar. Mindestens ein Teil des beim Kühlen (7, 9, 10) anfallenden Kondensats (14), das eine Temperatur von mindestens 110°C aufweist und unter einem Druck von mindestens 2 bar steht, wird entspannt, der Entspannungsdampf (17) abgeleitet, das entspannte Kondensat einer Trenneinrichtung (16) zugeführt und aus der Trenneinrichtung eine weitgehend aus Wasser bestehende Kondensatphase abgezogen, die als Kühlmedium (23, 8) für das Rohgas wiederverwendet wird. Der Entspannungsdampf kann auch verbrannt (18) werden.
Patent EP-0018456-A1 (EP)
Inventor: TAKANO HIROSHI
IPC: B29D29/08
Filed: 1979-05-04
Abstract: An adjustable V-belt comprises a compressive rubber layer (2') onto which an adhesion rubber layer (3') is laminated. A surface of the adhesion rubber layer (3') remote from the compressive rubber layer (2') forms an outer surface of the V-belt in use and has thereon a plurality of first ridges (4') which extend transversely of the V-belt. A canvas covering (5) covers the first ridges (4') and the recesses defined therebetween, and is stretchable longitudinally of the V-belt. Elongate tensile portions (6') are embedded between the adhesion rubber layer (3') and the first ridges (4') so that they contact portions of the canvas covering (5) which are disposed in said recesses. The tensile portion (6') extend longitudinally of the V-belt in mutually parallel, equi-spaced relation, and have a differential thermal contraction stress between 100°C and 20°C of at least 3.5 g denier. A surface of the compressive rubber layer (2') remote from the adhesion rubber layer (3') forms an inner surface of the V-beit in use and has a plurality of second ridges (9) thereon which also extend transversely of the V-belt. The second ridges (9) can be provided at regular (as shown) or random intervals along the V-belt, and can optionally be covered by at least one ply of rubberized canvas (7'). Short fibres (8') can be embedded in the compressive rubber layer (2') so as to be oriented transversely of the V-belt. 
     The V-belt is manufactured by winding the canvas covering (5), the tensile portions (6'), the adhesion rubber (3a'), the compression rubber (2a') and (when provided) the rubberized canvas (7') in succession around an outer wall of a cylindrical metal mould (11) which has circumferentially spaced protrusions (12) extending axially thereof. The tensile portions (6') are formed by spirally winding a rope-like tensile member around the mould (11), the tensile member being subjected to a thermal elongation treatment. A hollow cylindrical mould (12) having circumferentially spaced, axially extending protrusions (14) on its inner wall is then placed over the resultant belt blank, and the latter is pressurized and heated. This operation causes some of the adhesion rubber (3a') to flow between the windings of the tensile member (6') and into grooves (13) between the protrusions (12) on the first-mentioned cylindrical mould (11), thereby forming the first ridges (4') on the finished V-belt, and also causes some of the compressive rubber (2a') to flow into grooves (16) between the protrusions (14) on the hollow cylindrical mould (12), thereby forming the second ridges (9) on the finished V-belt.
Patent EP-0009953-A1 (EP)
Inventor: RABITSCH HERMANN
IPC: C11D3/06
Filed: 1979-10-01
Abstract: Particulate fabric washing detergent compositions are made with mixed phosphate detergency builders which comprise at least 5% of discrete particles of a water-soluble alkali metal polymer phosphate and at least 2% of an alkali metal orthophosphate in the ratio of 10:1 to 1:5 parts by weight, the total amount of these phosphates being from 10% to 40% of the composition and not more than 10% of other phosphate builders being present. The compositions are conveniently made by spray-drying a base powder and then admixing the polymer phosphate in discrete particle form with the base powder.
Patent EP-0004237-A1 (EP)
Title: Membranes échangeuses d'ions; leur préparation; leur utilisation dans l'électrolyse du chlorure de sodium
Inventor: BACHOT JEAN
IPC: C25B13/04
Filed: 1979-03-06
Abstract: L'invention concerne des membranes pour l'électrolyse. Elle porte sur des membranes constituées d'une feuille en polymère fluoré et amiante imprégnée d'un copolymère d'acide acrylique et de monomère non ionique. Application à l'électrolyse de NaCl pour la préparation du chlore et de la soude.
Patent EP-0013526-A1 (EP)
Inventor: TUCOULAT DANIEL
IPC: F16K27/00
Filed: 1979-12-26
Abstract: Un corps de robinet (2) est soudé à la tuyauterie et ayant un siège (5) de forme tronconique, un précorps (8) de forme externe tronconique s'adaptant sur ledit siège, un obturateur (9) dont les mouvements peuvent être commandés à distance grâce à un prolongateur et un élément pesant (13) rendu solidaire du précorps par l'intermédiaire d'une entretoise (17) présentant une surface supérieure en forme de calotte sphérique, surface sur laquelle appuie la surface également sphérique de la face inférieure dudit élément pesant.
Patent EP-0015956-A1 (EP)
Inventor: ROMANET JEAN-FRANCOIS ANDRE JU
IPC: F16H27/06
Filed: 1979-11-19
Abstract: Entre deux platines (1, 2) constituant le support d'un moteur pas a pas entrainant une roue dentee (5) sont disposes un stator (3) dissymetrique et un rotor (4) a aimant bipolaire monte sur un arbre (41) tournant, avec un certain jeu axial, entre deux paliers (42, 43). Ces armatures (30, 31) constituant le stator (3) sont decalees par rapport au plan de symetrie transversal du rotor (4) de facon a creer une force F entrainant le rotor vers la platine (1). Une manivelle d'entrainement de la roue (5) parle moteur pas a pas est constituee par deux plateaux (44, 45), concentriques et perpendiculaires a l'arbre (41), porteurs entre eux de deux goupilles (46, 47) diametralement opposees et perpendiculaires auxdits plateaux. L'embase (460, 470) des goupilles (46, 47) est conique.
Patent EP-0016083-A1 (EP)
Inventor: WEIDMANN ULRICH
IPC: F16C29/02
Filed: 1980-03-11
Abstract: Dispositif de guidage pour un contre-poids d'equilibre, qui est loge dans une poutre profilee en forme de caisson, en particulier pour un tableau mural. En outre, la poutre profilee creuse a sur sa face interieure un guide longitudinal (17, 18). Des bandes (30) elastiques, faites en caoutchouc durci vulcanise sont disposees au-dessus et au-dessous du contre-poids (20) et sont fixees legerement, de maniere coulissante aux guides longitudinaux: ces bandes guident le contre-poids dans son mouvement ascendant et descendant.
Patent EP-0035585-A1 (EP)
Inventor: KAWAGUCHI BUNSHIRO
IPC: F26B23/00
Filed: 1980-03-12
Abstract: On a combination-type dryer for textile sheet materials having upper side short loop (10) and lower side tentering dryers (20) the heating medium in the tentering dryer (20), is transferred, after removal of harmful inclusions such as tar, to the short loop dryer (10) for re-utilization, thereby enabling effective saving of thermal energy.
Patent EP-0025871-A1 (EP)
Inventor: COBLENZ ROLF
IPC: G05D11/13
Filed: 1980-08-16
Abstract: The invention relates to a method and a device for producing a reaction mixture from flowable foam-forming or solid-forming components (preferably polyurethane forming components) which are conveyed continuously and are mixed together or are circulated. The quantity to be conveyed is preselected. The injection pressure is preselected and the circulatory pressure is measured for each component. The predetermined quantity and pressure to be conveyed as well as the measured value are preferably fed into a control computer during the circulation and the mixing process and are compared with actual values. Cavities are filled out with the reaction mixture produced and, in particular, molded articles are produced in molds.
Patent EP-0048299-A1 (EP)
Inventor: LOWERY JR KIRBY
IPC: C08F10/00
Filed: 1980-09-23
Abstract: Compositions exhibiting high catalytic activity in the polymerization of a-olefins, particularly higher olefins, are prepared by reacting (A) tetravalent titanium compounds such as titanium tetraalkoxide, (B) an organoaluminum compound, (C) an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an - organoaluminum compound such as triethyl aluminum and. (D) as a halide source, a tetravalent tin compound such as tin tetrachloride. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics and these catalysts provide higher efficiencies than those catalysts employing HCI as the halide source.
Patent EP-0030614-A1 (EP)
Inventor: YANAGISHIMA FUMIYA
IPC: C21D9/56
Filed: 1980-10-30
Abstract: A steel strip continuous annealing apparatus comprising: a steel strip feeder; a heating-soaking zone (20,30) for heating and soaking a steel strip at a predetermined temperature; a first cooling zone (40) for rapidly cooling the steel strip at a predetermined cooling rate; a second cooling zone (60) for slowly cooling the steel strip or holding same at a predetermined temperature; a third cooling zone for cooling the steel strip to substantially room temperature; and a steel strip carry-out device; wherein the first cooling zone (40) incorporates therein forcible cooling means, the second cooling zone (60) incorporates therein hot-cold change-over means and the third cooling zone (70) incorporates therein forcible cooling means, while said steel strip continuous annealing apparatus further comprises: means for directly bypassing the steel strip from the heating-soaking zone (20,30) through a first bypass passageway (51) to the second cooling zone (60); and means for directly bypassing the steel strip from the first cooling zone (40) through a second bypass passageway (54) to the steel strip carry-out device; so that the steel strips different in dimensions and required heat cycle can be efficiently annealed.
Patent EP-0028805-A1 (EP)
Inventor: METTLER DIETHELM
IPC: B23K20/08
Filed: 1980-11-05
Abstract: Zur Wiederherstellung eines gebrauchten Kokillenrohres zum Stranggiessen werden nach dem Ausschleifen der Innenflächen in den Kokillenhohlraum Reibkörper eingebracht, die Rohrenden verschlossen, das Kokillenrohr und die Reibkörper in eine Realtivbewegung zueinander versetzt und anschliessend die Innenflächen galvanisch beschichtet.
Patent EP-0021635-A1 (EP)
Inventor: CANTERINO PETER JOHN
IPC: B29C49/00
Filed: 1980-06-02
Abstract: A uniaxially oriented thermoplastic film having improved strength and clarity in the direction of orientation with unexpected improvement in strength in the transverse (unoriented) direction is disclosed. Preferred film materials are homopolymers and copolymers of ethylene having a density of 0.915 to 0.935 g/cm 3 .
Patent EP-0028488-A1 (EP)
Inventor: JONES KEITH
IPC: C11B3/08
Filed: 1980-10-24
Abstract: The oil or fat such as palm oil, coconut oil, sal oil, bay tree leaf oil, rice bran oil and tallow, is treated with a polar bleaching agent, for example, hypochlorite, peroxide, peroxoacid, in the presence of a phase transfer catalyst. The catalyst is preferably cationic and may be a quaternary ammonium compound, for example, tetra-n-butyl ammonium hydroxide, tetra-n-octyl ammonium bromide or di(hydrogenated tallow alkyl)dimethyl ammonium chloride. Oils and fats bleached by this method may be used for soap-making.
Patent EP-0028491-A1 (EP)
Inventor: MYERS RONALD WILLIAM
IPC: H03H9/09
Filed: 1980-10-27
Abstract: An electrical connector for mounting a flat piezo-electric transducer on a printed circuit board comprising two resilient metal strips (12, 12 min ) having a plurality of coplanar, perimetrically spaced, hook-forming portions (20, 21 and 20 min , 21 min ) adjacent respective ends and being adapted to be connected to the printed circuit board (10) with a plane containing all the hook-forming portions (20, 21 and 20 min , 21 min ) parallel to the printed circuit board (10), and, a resilient contact arm (25 or 53, 53 min ) adapted to be connected to upstand from the printed circuit board (10) surrounded by the hook-forming portions (20, 21 and 20 min , 21 min  or 40, 41 and 40 min , 41 min ). Resilient flexure of the ends of the strips (12 or 12 min ) relatively apart in a plane parallel to the plane of the printed circuit board (10), permits engagement of an edge portion (8) of the transducer (2) by all the hook-forming portions (20, 21 and 20 min  21 min ) with a central portion (6) of the transducer (2) depressing the contact arm (25).
Patent EP-0032019-A1 (EP)
Inventor: DERBYSHIRE FRANCIS JOHN
IPC: C10G47/34
Filed: 1980-12-17
Abstract: Heavy liquid hydrocarbon oils such as petroleum derived tars, predominantly boiling over 425°C, are upgraded to products boiling below 425°C, without substantial formation of insoluble char, by heating the heavy oil with hydrogen and a hydrogen transfer solvent in the absence of hydrogenation catalyst at temperatures of about 320°C to 500°C, and a pressure of 20to 180 barfor3 to 30 minutes. The hydrogen transfer solvents are polycyclic compounds free of carbonyl groups, e.g., pyrene, and have a polarographic reduction potential which is less negative than phenanthrene and equal to or more nagative than azapyrene.
Patent EP-0028620-A1 (EP)
Title: Sintered carbide.
Inventor: LINDHOLM LEIF
IPC: C22C29/00
Filed: 1980-12-01
Abstract: PCT No. PCT/SE80/00141 Sec. 371 Date Jan. 15, 1981 Sec. 102(e) Date Jan. 15, 1981 PCT Filed May 14, 1980 PCT Pub. No. WO80/02569 PCT Pub. Date Nov. 27, 1980.In material applications in which besides a high wear resistance also excellent corrosion resistance, strength and toughness are required, conventional hard metal alloys have appeared inadequate. According to the invention a hard metal alloy now exists which fulfils these requirements. It is based on WC-Ni, and the binder phase of nickel is alloyed with low, well adjusted concentrations of above all Cr and Mo.
Patent EP-0035237-A1 (EP)
Inventor: MATSUMURA HIROYOSHI
IPC: G02B6/00
Filed: 1981-02-25
Abstract: A single-mode-transmission optical fiber comprising a core of a radius a having an arbitrary (not constant) refractive index distribution n(r) in the radial direction I, the index distribution being expressed by     and a cladding having a constant refractive index n 2 , the radius a of the core being:     In these expressions, n, denotes the maximum refractive index of the core,- λ, denotes the transmission light wavelength,     and the normalized frequency V is expressed by     Y is a solution Y in the case where X and Y are solutions of simultaneous equations:     of a function which is expressed by:     where     and
Patent EP-0042094-A1 (EP)
Inventor: IDEL KARSTEN DR
IPC: C08K3/00
Filed: 1981-06-01
Abstract: Die Erfindung betrifft die thermische Stabilisierung von Gemischen aus aromatischen Polycarbonaten und ABS-Kunststoffen mit 0,01 bis 3 Gew.-%, bezogen auf Gesamtmischung, von Estern der Borsäure, insbesondere solchen mit ortho- und/oder para-alkyl-substituierten Phenolen oder entsprechenden Bisphenoien.
Patent EP-0043057-A1 (EP)
Inventor: KALISZ JACQUES
IPC: F24D11/00
Filed: 1981-06-22
Abstract: An air-conditioned house possesses a conservatory (1) and solar collectors (4). It is characterised, in particular, in that the conservatory (1) is disposed within the habitable part of the house. <IMAGE>
Patent EP-0052205-A1 (EP)
Inventor: WISSER GERHARD
IPC: F16K5/02
Filed: 1981-09-29
Abstract: In a cock, particularly for corrosive media, the housing (1) and the stopcock (4) are coated on the surfaces facing the medium with a sprayable, corrosion-resistant, thermoplastic plastic, preferably belonging to the group of fluorohydrocarbons, e.g. fluoroethylenepropylene or polyfluoroethylene. In order to ensure that the coefficients of friction between the stopcock (4) and the housing (1) remain so small, even under the influence of corrosive media, that easy rotation of the stopcock (4) is possible, with correct sealing, a bush (12) of polytetrafluoroethylene, inserted in the intermediate space between the housing (1) and the stopcock (4) of the cock, is firmly connected to the plastic coating (10 or 11) of the housing (1) or of the stopcock (4). <IMAGE>
Patent EP-0039532-A1 (EP)
Inventor: ABBESTAM KAJ
IPC: B30B15/04
Filed: 1981-05-04
Abstract: A machine tool consisting of a portal stand comprising a number of, preferably four, screw pillars (2). A moveable yoke (6) is driven and guided along the screw pillars by means of nuts (7) preferably roller nuts. Tools, machining devices or the like can be attached to the yoke. The nuts are driven simultaneously by a driving means (8) by way of a drive shaft (9) extending therefrom. A very good parallel holding of the yoke (6) is achieved despite uneven loads. When the power demand is high, for example during heavy pressings, a help cylinder (12) is needed for driving, the piston rod (13) of which is fixed to the yoke (6).
Patent EP-0054996-A1 (EP)
Inventor: VERLAETEN JEAN
IPC: C01B11/06
Filed: 1981-12-10
Abstract: Process and plant for the preparation of concentrated aqueous solutions of alkali metal hypochlorite, in which a suspension of crystals of alkali metal chloride in an aqueous solution of alkali metal hypochlorite is circulated from bottom to top in a tubular reaction chamber located in an enclosure, chlorine and an aqueous solution of alkali metal hydroxide are reacted in this suspension in the chamber, a fraction of the resulting suspension leaving the open upper part of the chamber, overflows out of the enclosure and is filtered to separate the crystals, and the remaining fraction of the suspension is kept in the enclosure where it is recycled to the base of the reaction chamber.
Patent EP-0034920-A1 (EP)
Inventor: HARTIG MARTVAL JOHN
IPC: F28F21/06
Filed: 1981-02-19
Abstract: An energy-efficient water evaporation process uses a falling film evaporator (5) having a plurality of substantially vertical and equidistant heat exchange elements made of a synthetic polymeric material. Each evaporating surface is in contact with a liquid spreading means, and each heat exchange element is heated by steam (5) having a condensation temperature slightly higher than the boiling point of the aqueous solution from which water is being evaporated. Steam formed by evaporation of water either is recompressed (8) and reintroduced as heating steam in a single-stage process or is used as heating steam for another stage, operating at a lower temperature and pressure, in a multistage process. Heating steam condenses to fresh water, (10) which is recovered. This process is operated at a low feed rate, preferably below45 Kg of incoming aqueous solution per linear meter of horizontal width of each evaporating surface, and is capable of providing a 50% fresh water recovery per pass from sea water. Higher recoveries are possible in the case of brackish waters and various industrial waters. The process is useful in water desalination and purification.
Patent EP-0053431-A1 (EP)
Inventor: PRIOR ANTHONY STEPHEN
IPC: D04B1/18
Filed: 1981-10-09
Abstract: Initially, the needles of both cylinders of a double cylinder knitting machine are used to knit a preliminary course 12 of ground yarn supplied from a first feed of the machine. A roll welt is then knitted by holding loops of the ground yarn using the needles of one cylinder while using the needles of the other cylinder to knit alternate courses of ground yarn G from the first feed and elastic or elastomeric yarn E 2  from a second feed. Following this, an elasticated band is knitted by repeatedly using the needles of both cylinders to knit a course of ground yarn G from the first feed, and using the needles of said one cylinder to knit a course of elastic or elastomeric yarn E 2  from the second feed while floating the needles of said other cylinder. As an alternative, the latter course can be knitted using elastic or elastomeric yarn from a third feed. In a further alternative arrangement, an additional course of elastic or elastomeric yarn is knitted in between each course of the yarn E 2  in the elasticated band and the succeeding course of ground yarn G, either using the needles of both cylinders (Fig. 1, not shown) or using the needles of said other cylinder while floating the needles of said one cylinder (Fig. 2, not shown).
Patent EP-0055520-A1 (EP)
Inventor: ENG JEFFREY D
IPC: C25B11/10
Filed: 1981-11-25
Abstract: A filter press type electrolytic cell (11) for the electrolysis of brine to produce chlorine and caustic includes a plurality of rectangular frames (13, 15) having U-shaped or channel-shaped wall members (91, 93, 95, 97), the open sides of each of which wall members face inwardly, and a downcomer tube (111) in each frame (13,15) for conducting product from near the top of the frame (97) to the bottom (93) thereof for withdrawal. The downcomer tubes (111) are located near a framing side (95) but are not within a framing channel. The openings of the wall members (91, 93, 95, 97) are partially covered by cross members (101, 104, 109) of the same material as the framing to improve the resistance thereof to distortion during closing of the cell (11). Utilization of the dawncomer tubes (111), preferably of polytetrafluoroethylene for the catholyte compartment and titanium or titanium clad material for the anolyte compartment, allows the maintaining of the framing channel open so that inner walls thereof are electrolytically protected against corrosion. The invention also relates to frames (13, 15) for use in filter press type electrolytic cells (11) and to a method of electrolyzing, wherein such frames (13, 15) and cells (11) may be employed.
Patent EP-0054387-A1 (EP)
Inventor: HOGAN PHILIP JOHN
IPC: C07B61/00
Filed: 1981-12-04
Abstract: Hydrocarbons e.g. toluene and oxyhydrocarbons e.g. methanol are converted to other hydrocarbons by being contacted under conversion conditions with a catalyst comprising zeolite Nu-5.