baber/WOPTO huggingface dataset:
Patent EP-0004658-A1 (EP)
Inventor: HOWAT III COLIN SHOLTO
IPC: C07C11/12
Filed: 1979-03-31
Abstract: Acetylenic hydrocarbons are removed from a C 4 - or C s -hydrocarbon mixture containing a C 4 - or C s -diolefin respectively. The feedstock (e.g. a C 4 - or C 5 - cut from an ethylene plant) is extractively distilled to remove paraffins and mono-olefins in the raffinate, using acetonitrile (ACN), dimethyl formamide (DMF), furfural, acetone, dimethylacetamide or N-methyl-2-pyrrolidone mixed with 0-12 weight percent water as the extraction solvent. The bottoms from this first extractive distillation is subjected to a second extractive distillation in which virtually acetylenes-free solvent is used. Isoprene is withdrawn as the distillate with substantially reduced acetylenes content. The bottoms of the second extractive distillation is split three ways. Two streams are handled conventionally (recycle and heavies removal). The third is stripped free of acetylenes so that it may be used as solvent in the second extractive distillation.
Patent EP-0006208-A1 (EP)
Inventor: BERGER LEO
IPC: C07D209/88
Filed: 1979-06-11
Abstract: The invention relates to a process for the preparation of carbazoles of the formula 
<CHEM>
 wherein X is hydroxymethyl or a grouping COOR<1>, R<1> is hydrogen or lower alkyl, and the dotted line denotes an optional C-C bond and, where X is carboxy, salts thereof with bases, starting from 6-chloro-1,2,3,4-tetrahydro- carbazole-2-one, as well as to the novel carbazoles of formula 
<CHEM>
 wherein X is as above, and to the intermediate, 6-chloro-1,2,3,4-tetrahydro- carbazole-2-one.
Patent EP-0011302-A1 (EP)
Inventor: MIYASHITA OSAMU
IPC: C07D498/18
Filed: 1979-11-16
Abstract: Novel maytansinoids of the formula:
     wherein X is H or Cf, and R is
      or-OR 3  wherein R 1  and R2 may be the same or different, and each is H or a substituted or unsubstituted hydrocarbon residue or heterocyclic group, or R 1  and R 2  may, taken together with the adjacent N atom, form a heterocyclic group, and R 3  is a substituted or unsubstituted hydrocarbon residue, have antimitotic, antitumor and antimicrobial activities.
Patent EP-0012576-A1 (EP)
Inventor: MAKIMAA TOIVO TAPANI
IPC: B23K9/09
Filed: 1979-12-07
Abstract: Disclosed is a coupling arrangement for a DC welding apparatus. particularly intended for MIG welding The coupling comprises a controllable fast DC voltage source, first circuit elements (sh, R1, R2) for detecting both load current (I) and load voltage (U 2 ) and for generating voltage signals corresponding thereto, second circuit elements (A1-A4, R3-R11, C1-C3) for forming a control signal (U o ) in response to said voltage signals so as to correspond to the values of desired current pulses and current increase rate in a drop short-circuit instance, and third circuit elements (OE, T1, T2) which receive the control signal and effect control of the voltage source in response thereto. Said second circuit elements may include means for receiving a setting signal by which the characteristic values of the current pulse and the current increase may be set and scaled and the open circuit-voltage of the voltage source can be determined.
Patent EP-0014448-A1 (EP)
Inventor: HEIJS KAREL AUGUSTINUS G ING
IPC: D21F1/70
Filed: 1980-02-02
Abstract: A pulp suspension is de-inked by way of flotation after the suspension is chemically treated to remove impurities. Air is supplied to the chemically treated suspension so as to generate a foam containing the impurities on the surface of the liquid level of the suspension. The foam is drawn off closely above the liquid level and quenched, and an upper layer of the pulp suspension beneath the foam is discharged so as to remove fiber fines contained in the upper layer. Accordingly, the pulp suspension is purified more quickly and effectively than with prior arrangements wherein the foam and the fiber fines were not separately removed.
Patent EP-0014986-A1 (EP)
Inventor: YAMAGUCHI TOSHIHARU
IPC: B62J6/20
Filed: 1980-02-18
Abstract: The reflector reflects light dynamically, twinkling and sparkling intensely, helping the drivers of approaching cars to see and recognize the bicycles and its rider quickly, so that accidents of bicycles can be prevented. The revolving reflector comprises a revolving reflector member which is rotated at least when the bicycle is run, a support memberforsupport- ing rotatably the reflecting member and an attachment member for attaching the support member to a desired portion of the bicycle.
Patent EP-0023586-A1 (EP)
Inventor: HEINE HEINRICH
IPC: C08G18/08
Filed: 1980-07-08
Abstract: This invention relates to storage stable, solvent-free thermosetting polyurethane-based molding compositions which contain a fibrous reinforcing material, to a process for their production and to the production of fiber-reinforced moldings using these molding compositions.
Patent EP-0028708-A1 (EP)
Inventor: BECELLA PETER
IPC: G11B5/41
Filed: 1980-10-08
Abstract: A cleaning cassette for a tape recorder is provided with a cleaning tape advanced in a cassette housing and a dirt-removing element made of cotton wadding, or felt, or synthetic resin and positioned in the housing in contact with the advancing cleaning tape. The dirt-removing element is wetted with a cleaning liquid through an opening formed in the housing. This liquid-absorbing element transfers the liquid to the cleaning tape which cleans the machine components as the cleaning tape is advanced in the housing.
Patent EP-0035592-A1 (EP)
Inventor: BITAR OMAR DIPL-ING
IPC: H04W88/02
Filed: 1980-11-11
Abstract: A tone call evaluator for a radio telephone receiver is proposed which is used for evaluating a multi-digit selective call characteristic of the receiver and a group call intended for several radio telephone receivers. The group call consists of a selective call which, instead of the selective call frequency, exhibits a group call frequency at a particular point. If the tone call evaluator is switched to a point in the selective call in which the group call frequency is expected, the tone call evaluator is first switched to the selective call frequency of this point. If the selective call frequency does not arrive within a first particular period of time (tw), the tone call evaluator is switched to the group call frequency. If the group call frequency does not arrive within a second particular duration which is greater than the first duration, the tone call evaluator is switched back to the initial position. If, in contrast, the selective call frequency of the selected point or the group call frequency is recognised as being correct, these frequencies are evaluated as in the normal case. <IMAGE>
Patent EP-0021476-A1 (EP)
Inventor: DAVIS JAMES E
IPC: D06M13/463
Filed: 1980-05-27
Abstract: Liquid fabric conditioning compositions having good chemical and physical stability are provided by mixtures of a quaternary ammonium salt, protonated dipolyethoxy monoalkyl amine, a lower alcohol, and water. Addition of nonionic fabric conditioning agents is optional.
Patent EP-0028535-A1 (EP)
Inventor: MERENSALMI MATTI JOHANNES
IPC: A23K3/02
Filed: 1980-11-05
Abstract: An additive to be added to animal feed such as grass, other fresh-cut vegetable matter, grain or mash prior to anaerobic ensiling characterised in that the additive comprises lignone sulphonate in acid or in totally or partially, non-toxically, neutralised form, together with a mineral and / or organic acid or a non-toxic salt of such acid(s). Also a method of ensiling animal feed such as grass, grain or mash in which the feed is treated with an additive to improve palatability and reduce losses in nutritive material characterised in that the feed is treated with lignone sulphonate (SL) in acid or totally or partially non-toxically neutralised form together with a mineral and/or organic acid or a non-toxic salt of such acid(s), the SL calculated as dry matter being added at a rate of 1.5 to 15 g/100g crude protein.
Patent EP-0028565-A1 (EP)
Inventor: SAINT AVIT JEAN HENRI MARCEL
IPC: D01G11/02
Filed: 1980-10-29
Abstract: The present invention relates to a machine for untwisting the strands of fibres to obtain slivers of parallel fibres capable of being used or reused for making new strands or other products. The machine according to the invention comprises at least one device for the supply (1) of strands (8) with gripping means (17) delivering the strands one by one to a fault detection device (2) associated with a device (41) for the ejection of defective strands, at least one strand-untwisting head (3), at least one card (4) for combing the fibre slivers obtained after untwisting, and at least one member (5) for the discharge of the fibre slivers. The machine according to the invention is especially suitable for untwisting strands or strings of sisal, but can also be used for untwisting all types of fibre strands.
Patent EP-0022422-A1 (EP)
Inventor: BAEZA JOSEPH
IPC: B01F3/04
Filed: 1980-06-10
Abstract: 1. Drink dispensing machine, dispensing cold aerated drinks, of the type comprising a cooled gasifying chamber (4) supplied in carbon dioxide gas and in liquid to be gasified, characterised in that it comprises a cooling tank (1) for the liquid, which tank contains a brine bath (2) the temperature of which is between 2 degrees and 5 degrees C and in that the said gasifying chamber (4) is float which floats on said brine bath and the movements of which starts off the liquid supply to the member.
Patent EP-0034264-A1 (EP)
Inventor: BEVERLY JOHN P
IPC: F24C3/12
Filed: 1981-01-21
Abstract: A radiant heating system has a plurality of burner heads (10) operatively arranged in a burner branch (12-14) at spaced locations thereaiong. A combustible gas, having a desired fuei-air mix, is ignited and burned at each burner head. Such combustion heats a downstream length (12) of pipe, which radiates heat within an environment to be warmed. A vacuum pump associated with the system ensures a flow of air products of combustion through the burner branch. The burner head projects into and is arranged within a combustion chamber (13), in series with the radiant pipe. The projected cross-sectional area of the improved burner head is not more than sixty-five percent of the cross-sectional area of the combustion chamber. The improved burner head reduces, within practical limits, velocity attenuation of the flow around the burner head, and also reduces the pressure drop of such flow around the burner head.
Patent EP-0041242-A1 (EP)
Title: Carbamoyloxyamino-1,4-benzodiazepine, Verfahren zu ihrer Herstellung und diese enthaltende Arzneimittel
Inventor: FORSCH MANFRED DR
IPC: C07D243/20
Filed: 1981-05-28
Abstract: Es werden neue 1,4-Benzodiazepine mit einer Carbamoyloxyaminogruppierung der Formel I <IMAGE> und die tautomeren Verbindungen der Formel IA <IMAGE> und deren physiologisch verträglichen Salze beschrieben, die eine angstlösende Wirkung besitzen ohne zu sedieren, Verfahren zur Herstellung dieser neuen Verbindungen, sowie pharmazeutische Mittel, welche die erfindungsgemäßen aktiven Verbindungen enthalten und deren Verwendung als Arzneimittel für die Behandlung von Angstzuständen.
Patent EP-0043978-A1 (EP)
Inventor: HEYWANG GERHARD DR
IPC: C07F9/6518
Filed: 1981-06-30
Abstract: Die vorliegende Erfindung betrifft neue N-Phosphonylcarbonylcarbamate der Formel (I) <IMAGE> welche erhalten werden durch die Umsetzung von (a) N-Chlorcarbonyl-N-methylcarbamidsäureestern der Formel II <IMAGE> mit Phosphiten der Formel III <IMAGE> oder (b) Phosphiten der Formel (III) mit Bischlor-carbonyl-N-methylamin der Formel (IV) <IMAGE> und Hydroxylverbindungen der Formel V R³-OH (IV) wobei R¹ bis R<6> die in der Beschreibung angegebene Bedeutung haben. Die Verbindung der Formel (I) können zur Bekämpfung von Schädlingen, vor allem von Arthropoden, vorzugsweise von Insekten und Spinnentieren, insbesondere von Insekten verwendet werden.
Patent EP-0052188-A1 (EP)
Inventor: MONCH THEODOR PETER
IPC: E04D3/06
Filed: 1981-08-29
Abstract: 1. Terminal profiled strip (1) for hollow plates (10), consisting of an upper rail (2), a lower rail (3) and a portion (4) connecting them, and a drip-off edge (5), characterised in that the portion (4) connecting the upper rail (2) and the lower rail (3) of the terminal profiled strip (1) ends in a drip-off edge (5) extending beyond the lower rail (3) so that a connecting line (6) extending within the portion (4) can be positioned through the portion (4) and drip-off edge (5) and the terminal profiled strip (1) has a number of openings below the plane of the lower belt (9) of the hollow plate (10).
Patent EP-0035319-A1 (EP)
Inventor: BRUNNING JOHN FREDERICK
IPC: F02M9/10
Filed: 1981-01-16
Abstract: An automatic choke for a carburettor comprises a fuel enrichment valve (159, 160) for controlling the flow of fuel into a carburettor, a first operating lever (54) movable by a temperature sensitive element, e.g. a bimetallic coil spring, into engagement with an end stop (100); a second operating lever (57) for opening and closing the fuel enrichment valve (159, 160); a resilient connection, e.g. a coaxial coil spring (64), between the first and second levers by which the first lever moves the second lever to open the fuel enrichment valve at low temperatures; and an override lever (72) operable by a vacuum control device (73-80) to move the second lever against the bias of the resilient connection to close the fuel enrichment valve at low temperatures and low engine loads.
Patent EP-0038122-A1 (EP)
Inventor: REINHOLD EARL RAYMOND
IPC: C09D7/12
Filed: 1981-03-19
Abstract: An aqueous alkaline coating solution having a pH value no greater than about 10.2, for forming on metal especially zinc surfaces a corrosion-resistant coating, which may itself be coloured and serves as a good foundation for subsequently-applied overlying siccative coatings, contains in solution one or more of the following metals: cobalt, nickel, iron and tin; together with an inorganic complexing material which is effective in maintaining the metal in solution; and optionally, a reducing agent. A process for forming coatings by contacting the metal surface with the solution includes the step(s) of preliminary make-up and/or subsequent replenishment of the solution with appropriate concentrates. The replenishment concentrate with a pH of 6.8-7.2 containing cobalt and/or iron also contains an organic complexing agent.
Patent EP-0039153-A1 (EP)
Inventor: MCDONALD THOMAS JOSEPH
IPC: C22C21/00
Filed: 1981-04-08
Abstract: A sheet of brazing alloy foil, a clad sheet of aluminium, a brazed large section structure or a method of vacuum brazing large aluminium structures utilising a brazing alloy based on aluminium and containing 4.5-13.5% silicon, 0.1-1.5% strontium and up to 3% magnesium.
Patent EP-0052460-A1 (EP)
Inventor: HOLMES PAUL ARTHUR
IPC: C08L71/02
Filed: 1981-10-30
Abstract: Polymer blends containing (i) 0.2 - 95% by weight of a high molecular weight β-hydroxybutyric acid homo- or copolymer and (ii) a polymer containing at least 25% by weight of chlorine or nitrile groups, such as chlorinated polyethylene, polyvinyl chloride, or a high acrylonitrile resin. 
     In small quantities the β-hydroxybutyric acid polymer acts as a processing aid for the chlorine or nitrile containing polymer. 
     In larger quantities the properties of the β-hydroxybutyric acid polymer or the chlorine or nitrile containing polymer are improved.
Patent EP-0039294-A1 (EP)
Inventor: GODFROID JEAN-JACQUES
IPC: A61P25/00
Filed: 1981-04-28
Abstract: The invention relates to bis(substituted phenoxyacetates) of N-alkyl-dialkanolamines. These compounds are of the formula: <IMAGE>  (I)  wherein: X is chlorine, fluorine or trifluoromethyle, n is in the range from 1 to 3 and is preferably 2, R is a lower alkyl group, such as methyl or ethyl group, and the pharmaceutically acceptable salts of said compounds. Application: prevention and treatment of cerebral disorders.
Patent EP-0049177-A1 (EP)
Inventor: GUILLEMET ALAIN
IPC: A61K9/70
Filed: 1981-07-30
Abstract: 1. A dressing comprising a woven or non-woven fabric support and a dermatological composition containing polyvinylpyrrolidone, glycerol and an enzyme, useful particularly in the treatment of wounds and dermatoses, characterised in that the fabric support is associated with a non-adhesive dermatological composition comprising a polyvinylpyrrolidone having a molecular weight comprised between 10,000 and 400,000, glycerol and an enzyme selected from the group consisting of catalase, urokinase, superoxide dismutase, amylase, proteases and mixtures thereof, the association of the fabric support with the dermatological composition being obtained by wet coating then draught drying, and the polyvinylpyrrolidone-glycerol ratio in said dermatological composition being comprised between (3 : 1) and (5 : 1) by dry weight.
Patent EP-0055692-A1 (EP)
Inventor: MILZNER KARLHEINZ
IPC: C07D405/12
Filed: 1981-12-14
Abstract: Pyrimidines having an amino group in the 2-position and a cyclopropylmethoxy group in the 4-position of the pyrimidine nucleus. Compounds according to the invention have valuable herbicidal activity, particularly after pre-emergence application in cotton and sunflower.
Patent EP-0055979-A1 (EP)
Inventor: DAMBO ULF G
IPC: F16K24/04
Filed: 1981-10-29
Abstract: Venting valve for water, sewage and the like under pressure, comprising a housing (1) with a float (2) adapted to be lifted by the water, sewage and the like, and a valve (5,6) for the escape of air, and adapted to be closed in response to movement of the float to an upper position. With such venting valves safe functioning can be a problem, in particular a good sealing must be secured when it is desired that the valve shall be closed. A pressure channel (10) is at one end adapted to be subjected to the air pressure in the space (11) between the liquid surface (A) and the valve (5,6), and is at the other end (9) adapted to exert a force seeking to open the valve (5,6). Further, a control valve (19) is arranged at said one end of the channel (10), and the control valve (19) has an actuating member (19a) which follows the movements of the float (2), whereas a valve member (5) of the valve (5,6) is adapted to have a certain backlash (20) with respect to the float movement, so that the control valve (19) is opened before the valve (5,6) when the float (2) is descending.
Patent EP-0057696-A1 (EP)
Inventor: PEARSON DAVID D
IPC: C22F1/10
Filed: 1981-08-10
Abstract: Un procede de coulage d'une composition d'alliage et un procede de traitement thermique specifique sont decrits pour produire des articles de monocristaux simples solidifies directionnellement et ayant des proprietes exceptionnelles. L'alliage se base sur le systeme Ni-Al-Mo, avec de preference des additions de Ta. Le procede de production de l'article inclut une solidification directionnelle a une vitesse elevee pour produire une microstructure dentritique fine. Un traitement avec une solution et d'homogeneisation est effectue pour obtenir une microstructure unique a une seule phase chimiquement homogene. Cet article homogene est rapidement refroidi et vieilli a une temperature intermediaire pour developper une distribution uniforme et controlee de fines particules gamma de premiere phase.
Patent EP-0059966-A1 (EP)
Inventor: PATCHETT ARTHUR A
IPC: A61K38/00
Filed: 1982-03-08
Abstract: There are disclosed substituted arylthiazolidine carboxylic acid analogs, derivatives and related compounds of the formula:
     wherein:
     R and R 3  are the same or different and are hydrogen, loweralkyl, aralkyl;   R, is alkyl of from one to ten carbon atoms which include, branched, cyclic and unsaturated alkyl groups; substituted alkyl of from one to six carbon atoms wherein the substituent is amino, arylthio, aryloxy, hydroxy, arylamino, and acylamino; or alkyl and heteroaralkyl optionally substituted by halo, loweralkyl, hydroxy, aminoloweralkyl, alkoxy and amino groups and wherein the alkyl group contains from one to six carbon atoms;   R 2  is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group selected from the group consisting of phenyl, naphthyl, or biphenyl wherein the substituent is hydroxyl or lower alkyloxy;   X is CH 2  or S;     
and, the pharmaceutically acceptable salts thereof as well as processes for preparing the same. These compounds are angiotensin converting enzyme inhibitors which are useful for treating hypertension.
Patent EP-0066681-A1 (EP)
Inventor: VOLLMAYR NORBERT DIPL-ING
IPC: G01R25/00
Filed: 1982-03-26
Abstract: A method and apparatus for determining the phase angle between two periodic square wave signals is disclosed in which the two square wave signals are applied to respective inputs of an exclusive OR gate, the output signal of which is applied to a first input of a digital selection circuit. The output signal generated by this digital selection circuit is passed through a low pass filter to form a time integral, arithmetic mean value which is digitized by an analog to digital converter and supplied as a numerical value to a digital computer. The digital computer applies logical signals to two additional inputs of the digital selection circuit. The computer is programmed to sequentially set these control signals such that the digital signal presented to the computer sequentially represents the mean value, an upper signal level value, and a lower signal level value of the square wave signal output by the selection circuit. The computer is programmed to use these three variables to calculate a corrected value of the phase angle and to display this calculated value on a display unit.
Patent EP-0071106-A1 (EP)
Inventor: TADA KOJI C O OSAKA WORKS OF S
IPC: G01R15/24
Filed: 1982-07-15
Abstract: An optical voltage and electric field sensor for detecting the voltage or electric field applied to a device made of a single crystal of bismuth silicon oxide (Bi 12 SiO 20 ) or bismuth germanium oxide (Bi 12 GeO 20 ) is disclosed. The device comprises a plurality of crystal plates stacked in a direction perpendicular to the propagation direction of light, each plate having only one dimension reduced to a very small size.
Patent EP-0071890-A1 (EP)
Inventor: WANKEL FELIX DR H C
IPC: F01C20/18
Filed: 1982-07-29
Abstract: The volume of the end compression chamber (80) of a piston engine can be varied by means of sliders (87, 88) which can be moved into it and out of it, to obtain optimum end compression in dependence on the operating state of the engine. Due to the fact that these parts have a cross section which deviates from the circular, their end faces (85, 86) can be optimally adapted to a required shape of the end compression space. The sliders (87, 88), which are not circular in cross section, are sealed by means of a sealing boundary (90) formed of sealing strips (91, 92) and joint closures (93). <IMAGE>
Patent EP-0084089-A1 (EP)
Inventor: NIEDERER GINO DIPL-ING ETH
IPC: A61F2/34
Filed: 1982-11-06
Abstract: 1. A non-metallic joint socket (1) which can be anchored in the pelvis and which in adapted to receive a spherical joint head (10, 10') of a hip joint prosthesis in a hemispherical socket shell (5), the socket outside surface (3, 3') for anchorage in the pelvis being at least to some extent a surface of rotation, a metal contrast ring (7) being disposed in the said outer surface (3, 3') near the open edge of the shell (5), characterised by a metal measuring ring (8) which has a predetermined diameter and which is located concentrically of the rotational axis (2) of the said outside surface (3, 3') and parallel and at a predetermined vertical distance from the contrast ring surface in the said outside surface (3, 3').