baber/WOPTO huggingface dataset:
Patent EP-0023759-A1 (EP)
Inventor: MOORE WILLIAM H
IPC: C21C7/072
Filed: 1980-06-20
Abstract: Our invention is an improved process for removing gases and elements from a melt of molten ferrous metal; the process includes bubbling carbon dioxide through the melt, flushing the carbon dioxide from the melt with an inert gas and deoxidizing the melt with a metal chosen from the group of aluminum, magnesium, barium, calcium, zirconium or titanium.
Patent EP-0047347-A1 (EP)
Inventor: THAKUR PRAMOD CHANDRA
IPC: B01D19/00
Filed: 1980-09-01
Abstract: ©7 Apparatus (30) for separating gas and solids from a liquid, particularly gas and drill cuttings from drilling fluid in a closed loop fluid circulation system, comprises two compartments (31 and 32) separated by a wall (36) through which liquid can pass, means such as plates (38) being provided to filter out fine solids. The tops of the compartments are in gas communication through aperture (35), and the level of liquid in the compartments is maintained within a predetermined range by means of a supply line (14), an overflow (15) and valves (33 and 34). Liquid to be cleared enters compartment (32) by means of an inlet (13) and passes over baffles (39, 40 and 41) so that heavy solids are settled out. Partially cleaned fluid passes up over plates (38) where fine solids are removed, and into compartment (31) whence it is recirculated through an outlet (18). Solids are collected and discharged by a screw (43) through an outlet (45). Gas at the top of the compartments is exhausted through a pipe (16). A centrifugal separator for fine solids may be used in place of plates (38) and the two compartments may be connected by a wire mesh. The invention is particularly applicable in the drilling of horizontal boreholes in underground mines, to remove methane in advance of mining.
Patent EP-0029658-A1 (EP)
Inventor: ABDULLA RIAZ FAZAL
IPC: C07C205/12
Filed: 1980-10-23
Abstract: There is described novel hindered amine salts of 6,7 dihalo-3,4-dihydro-3 -oxo-2-quinoxaline carboxylic acids of the formula I: 
<CHEM>
 wherein R and R<1> are independently halogen: R<2> is H, CH3, or C2H5; R<3>, when taken singly, is H, CH3, C2H4OH, CH2C6H5 or CH2COOC2H5; R<4>, when taken singly, is a hindered hydrocarbyl radical of the group consisting of cycloactyl, norbornyl. Ad and CHR<2>Ad wherein Ad is a 1-adamantyl, a 2-adamantyl, a 3-(4-homoiso) twistane or a tricycloundecane radical; and R<3> and R<4> when taken together with the nitrogen to which they are attached, form an adamantylspiropyrrolidine radical. The compounds are prepared by treatment of the free acid with the free base or a salt of the appropriate hindered amine. They are effective antiviral agents in mammels.
Patent EP-0030419-A1 (EP)
Inventor: SMITH THOMAS HENRY
IPC: B23K35/36
Filed: 1980-11-11
Abstract: A manual metal arc process for depositing weld metal on a cast iron workpiece is accomplished by using a welding electrode having a cast iron core with a coating of limestone and ferro-silicon. The proportions of limestone and ferrosilicon in the coating are selected so as to give a carbon equivalent value in the deposited weld metal substantially equal to the carbon equivalent value in the workpiece als calculated from the formula C eq = total C% + Si% + P% 3
Patent EP-0030121-A1 (EP)
Inventor: PERRY ROBERT HARRY
IPC: B61L3/22
Filed: 1980-11-26
Abstract: Apparatus and method for a passenger transit vehicle running on a track, for speed control at specific locations such as a station; the apparatus uses first and second sets of sensing coils on board the train, cooperating with a track- embedded two wire antenna which is transposed at known periodic intervals of distance; a plurality of vehicle-carried signal receivers comprising said sensing coils operative with the transposed signal transmitting cable antenna for providing an initial and higher speed position-determination and then a lower speed and more accurate position-determination for stopping the vehicle at a desired location. The sensing coils are so spaced with respect to said transposition interval that a higher stopping accuracy than what is possible in prior art is achieved.
Patent EP-0014613-A1 (EP)
Inventor: BERGER JEAN-YVES
IPC: B23K10/00
Filed: 1980-01-21
Abstract: L'invention concerne une installation de coupage plasma comprenant un générateur principal 10 alimentant un arc plasma entre une pièce 5 et une électrode 2 d'une torche 1 à tuyère 3, avec amorçage préalable par un arc d'allumage entre électrode 2 et tuyère 3, via la résistance 14 et le contact 15. Selon l'invention, on prévoit aux bornes du contact de courant principal 13 un circuit à résistance 16 et enroulement d'excitation 17 d'un relais 18 permettant, lorsque la torche 1 s'est approchée à la distance correcte de la pièce 5, de détecter cet écartement correct et d'agir sur le moteur d'avance 19 pour l'arrêter immédiatement. Application au coupage plasma par voie automatique.
Patent EP-0028974-A1 (EP)
Inventor: LEGENDRE SERGE
IPC: G02B3/00
Filed: 1980-11-05
Abstract: The composite glass (10) starts from a layered pre-form (14) comprising for example an intermediate layer of organic material (12) between two shells of inorganic material (E'A, E'B). According to the invention, the external surface of the shells of inorganic material (11'A, 11'B) are machined until the shells have a thickness reduction in the centre at least equal to half of their initial thicknesses. Application in particular for making composite ophthalmic lenses. <IMAGE>
Patent EP-0037021-A1 (EP)
Inventor: WOHLGEMUTH JURGEN DIPL-ING
IPC: A61C1/14
Filed: 1981-03-19
Abstract: 1. A holding device, arranged in a head housing (3) of a dental hand-piece, for a rotating tool (4) which is accommodated in a hollow, cylindrical shaft (32) and has a flattened shank end which, for transmitting torque, can be brought into engagement with a carrier (48) which rotates with the hollow shaft, and is provided with an annular groove (10), and which tool (4), rotates with shaft (32) with the aid of locking means (41) which consist of at least one holding element (43) extending to the shank end basically parallel to the axis, and is provided with a latch (44) which is directed transversely to the tool axis and engaged into the annular groove (10) of the shank, is held in a closed position by scring force or by the intrinsic resilience of the locking means (41), wherein, on insertion of the tool (4) into the shaft (32), the latch (44) engages with the annular groove (10), and, in order that the tool may be axially withdrawn, is released therefrom with the aid of a thumb-operable actuator (33) which is subject to a restoring force, and of a release member (38), the upper part of the holding elements (43) which carries the latch (44), moving into a free space in the shaft (32) at the upper end of the head housing which faces away from the outlet for the tool, characterized in that the shaft (32) has an internal recess (46, 47) which forms the free space, is stepped in diameter, and serves to accommodate the latch (41), which recesss is so designed that in a further portion (47) thereof, the latch (44) can move outwardly basically at right angles to the axis of the tool, in order to release the engagement connection, that, when the actuator (33) is not operated, the locking means (41) is arranged, with its free end out of contact with, but opposite the release member (37), which, on the one hand, is arranged on the actuator (33) or is operatively connected thereto, and, on the other hand, is supported in the head housing (30) and thus does not rotate with the shaft, and that, when the actuator is operated, the locking means is pressed outwardly by the release member against the spring force and the direction of engagement, so as to effect disengagement, and that the actuator (33) is supported in the head housing (30) in such a way that it is capable of executing and axial and/or tilting movement when operated.
Patent EP-0037035-A1 (EP)
Inventor: TADA TETSUYA
IPC: B05B9/08
Filed: 1981-03-20
Abstract: An air-pressurized sprayer (10) comprises a valve housing (14) attached to the top portion of a container (12) containing a liquid to be sprayed, and a cylinder (16) removably attached to the bottom portion of the container (12) to extend upward inside the container (12). The valve housing (14) includes a descendable nozzle (29), a one-way valve (18) for spraying which opens in connection with a descending action of the nozzle (29), and a pipe (31) for leading the liquid in the container (12) into the spraying valve (18). On the other hand, the cylinder (16) includes a piston (54) having a seal (78) and slidable along the inner peripheral surface of the cylinder, and a one-way valve (42) for air pressurization which allows air pressurized by the slide of the piston (16) to flow into the container (12).
Patent EP-0055357-A1 (EP)
Inventor: HUSSLEIN GERD DR
IPC: C07C59/70
Filed: 1981-10-24
Abstract: Verfahren zur Herstellung von 2,4-Dichlor- bzw. 2-Methyl-4-chlorphenoxyessigsäure oder alpha-2,4-Dichlor- bzw. alpha-2-methyl-4-chlorphenöxypropionsäure durch Umsetzung von Phenoxyessigsäure bzw. 2-Methylphenoxyessigsäure oder alpha-Phenoxypropionsäure bzw. alpha-2-Methylphenoxypropionsäure mit Chlor in Wasser, indem man Phenoxyessigsäure aus ihrer wäßrigen Lösung ausfällt, in die so erhaltene Suspension von Phenoxyessigsäure bzw. 2-Methylphenoxyessigsäure oder alpha-Phenoxypropionsäure bzw. alpha-2-Methylphenoxypropionsäure in Wasser Chlorgas bei einer Temperatur von 30 bis 70°C höchstens in der Menge und Geschwindigkeit, in der es von der Suspension verbraucht wird, einleitet. bis 100 bis 110 % der theoretisch erforderlichen Menge an Chlorgas von der Suspension aufgenommen worden sind, und die 2,4-Dichlor- bzw. 2-Methyl-4-chlorphenoxyessigsäure oder alpha-2,4-Dichlor. bzw. alpha-2-Methyl-4-chlorphenoxypropionsäure von der Suspension abtrennt.
Patent EP-0036229-A1 (EP)
Inventor: DE JAGER EVERT
IPC: A61K45/06
Filed: 1981-03-02
Abstract: The invention relates to a multiphase combination-type sequential preparation for oral contraception consisting of 20-22 tablets each containing a gestagen and an oestrogen wherein a first phase consists of 5-8 tablets, each of which contains a low dose of gestagen and a relatively high dose of oestrogen, a second phase of 5-8 tablets each having a gestagen dose which is greater than that during the first phase and an oestrogen dose which is smaller than that in the first phase, and a third phase of 5-11 tablets each of which has a gestagen dose equal to or greater than that during the second phase and an oestrogen dose equal to or less than that in the second phase, and to a method of oral contraception using said preparation.
Patent EP-0041380-A1 (EP)
Inventor: SHINKAI KEN
IPC: B29C48/92
Filed: 1981-05-29
Abstract: A process for producing a polyethylene foam comprises mixing 100 parts by weight of polyethylene with 0.1 to 0.4 parts by weight of a carbonate or bicarbonate and 0.01 to 0.2 parts by weight of an organic acid which generates carbon dioxide gas and water upon reaction with the carbonate or bicarbonate as a nucleus-forming agent, the weight ratio of the organic acid to the carbonate or bicarbonate being from 1:2 to 1:10, and extruding the mixture at a temperature above the softening point of the polyethylene using nitrogen gas or carbon dioxide gas as a blowing agent.
Patent EP-0054411-A1 (EP)
Inventor: SHIRASAKI MASATAKA
IPC: G02B5/30
Filed: 1981-12-10
Abstract: The optical device comprises tapered birefringent plates 32 and 32' the optical axes of which are rotated one with respect to the other around the direction of travel of light in the device. Between the tapered birefringent plates an element (33) for rotating the plane of polarisation of light passing therethrough is provided. 
     The element (33) may be a 45° Faraday rotator, in which case the device acts as an optical isolator. 
     Alternatively, the element (33) may be an electro-optic device, in which case the device acts as a phase difference-light intensity converter. 
     The operation of the device is polarisation independent.
Patent EP-0055074-A1 (EP)
Inventor: KANEKO YASUYUKI
IPC: C02F3/12
Filed: 1981-12-16
Abstract: Conventional methods of treating waste liquors containing phenol suffer from a variety of disadvantages. For example in the activated sludge method large amounts of water are needed and a large volume of diluted waste liquor has to be treated. Such problems can be overcome by using a strain of the fungus Aureobasidium pullulans which is capable of assimilating phenol in the presence of methanol and formaldehyde and which is carried on a support. The waste liquor contacts the supported fungus, and the phenol is assimilated by the fungus, which grows. This technique can be used to treat waste liquors emanating from a phenol resin production plant.
Patent EP-0034973-A1 (EP)
Inventor: CURTINOT JEAN-CLAUDE
IPC: H04L27/20
Filed: 1981-02-13
Abstract: Modulation device for transmitting digital signals on a modulated carrier having at least two phase states. Modulation device comprising a high-frequency oscillator (1), a linear, symmetric modulator (20) having a signal input connected to the output of the oscillator. The modulation input of the modulator receives the coded digital signals from a coding device (30) via a low-pass filter (40). Application to modulation devices with four phase states, the modulator then being a symmetric dual modulator. <IMAGE>
Patent EP-0037773-A1 (EP)
Inventor: PRION CHRISTIAN JOSEPH
IPC: A47C7/32
Filed: 1981-03-30
Abstract: 1. Rear seat of automobile vehicles, presenting a seat comprising a support frame (1) to the front and rear crosspieces (1a, 1b) of which is connected a mattress element (5, 6) by elastic traction elements (8) and articulations to the crosspieces of the frame, and a cushion (11) resting on said mattress element, characterized in that, in manner known per se, the mattress element comprises at least two rigid surfaces (5, 6) articulated on each other along a transverse axis, in that one of the transverse edges of the assembly of these surfaces is connected by the elastic traction elements (8) to the front crosspiece (1a) of the frame (1) whilst its other transverse edge is articulated on the rear crosspiece (1b) of this frame.
Patent EP-0040632-A1 (EP)
Inventor: CHARI VENU
IPC: H04L25/49
Filed: 1980-11-13
Abstract: Un circuit de recuperation de donnees (20) est utilise dans un systeme de traitement de donnees ou plusieurs sous-systemes sont relies par une ligne de transmission serielle de bits. Les donnees transmises sur la ligne de transmission serielle de bits ont la forme d'un signal d'impulsion (ENDATA) a phase codee (PE). Le circuit de recuperation de donnees (20) comprend un circuit de temporisation pour retarder le signal d'impulsion PE (ENDATA) d'une periode de trois quarts de bit. Le signal de temporisation d'une periode de trois quarts de bit permet la generation d'un signal d'horloge de commande. Le signal d'horloge de commande est utilise dans l'echantillonnage du signal d'impulsion PE aux points de la periode de trois quarts de bit de maniere a generer un signal de commande (CNTRL) qui indique l'absence ou la presence d'une transition au milieu de chaque periode de bits du signal d'impulsion PE (ENDATA). Le signal de commande (CNTRL) est utilise pour generer un signal d'horloge recupere (RCLK) en combinant logiquement le signal de commande (CNTRL) avec le signal d'impulsion PE (ENDATA) et un signal d'impulsion PE retarde d'une periode d'un demi bit (HBTD). Le signal de commande (CNTRL) est egalement utilise pour generer un signal de donnee recupere (RDATA) par synchronisation du signal de commande (CNTRL) dans deux bascules en cascade et en combinant logiquement les sorties des deux bascules en cascade.
Patent EP-0052612-A1 (EP)
Inventor: HSU HARRY L
IPC: C10B55/00
Filed: 1981-03-27
Abstract: De l'oxyde de fer ou du fluorure de calcium en particules tres fines est disperse dans une matiere premiere de coke de petrole a haute teneur en soufre avant la cokefaction retardee pour produire un coke en aiguilles presentant un faible (CTE) et un degagement de fumee negligeable lors du chauffage a la temperature de graphitisation.
Patent EP-0064076-A1 (EP)
Inventor: LARSEN JORGEN
IPC: F16F9/34
Filed: 1981-11-03
Abstract: Dans un frein hydraulique ou pneumatique comprenant deux chambres (2, 5) remplies d'un fluide de freinage et communiquant l'une avec l'autre par l'intermediaire, d'une part, d'un passage assez large (13) pourvu d'un clapet anti-retour (14) et, d'autre part d'un passage pourvu d'un etranglement, constitue par la rainure d'un filet dont la finesse et la longueur peuvent etre modifiees facilement pour reproduire l'effet d'etranglement desire.
Patent EP-0059305-A1 (EP)
Inventor: MCNEIL BRIAN ALFRED
IPC: F25J3/02
Filed: 1980-02-08
Abstract: A stream of gas rich in hydrogen is cooled and is washed with nitrogen in a nitrogen wash column (104) to remove impurities. Gaseous hydrogen and nitrogen leave the top of the nitrogen wash column (104) and the appropriate amount of nitrogen is added to form ammonia synthesis gas. The gaseous nitrogen and hydrogen leaving the top of the nitrogen wash column is warmed (202, 204) before the addition of nitrogen so that the resulting mixture is in the vapour phase thereby avoiding the difficulties associated with the prior art where the addition of nitrogen was carried out immediately downstream of the nitrogen wash column and two phases were produced due to the cooling effect produced by the addition of the nitrogen.
Patent EP-0063317-A1 (EP)
Inventor: YATA YUKIO
IPC: G03B21/62
Filed: 1982-04-06
Abstract: Provided is a rear projection screen having a front surface receiving light rays from a projector and a viewing surface formed with a lenticulated surface in which lenticules each consisting of a crest, a trough and a flank interconnecting the crest and trough are continuously laid. The flank surface is provided with, on at least a part thereof, a total reflecting surface on which all light rays impinging thereto are reflected and then emanate from the crest through a medium interface thereof.
Patent EP-0091979-A1 (EP)
Inventor: KEHLER WALDEMAR DIPL-ING
IPC: H04N7/32
Filed: 1982-04-20
Abstract: 1. Predictive quantizing method for the coding of a predicted range of values, a domain which is classified according to a defined criteria in a expected quantity of high occurance probability characterized by the fact that the expected quantity takes into consideration all relevant diverging expective parameters (predictions) technically obtainable from a signal development, to define thereby an expected range quantizable according to its size limited by a minimum and a maximum, whereby the quantizing values may be selected according to its points of accumulation.
Patent EP-0066111-A1 (EP)
Inventor: KONOSHIMA KATUNAGA
IPC: H01R13/44
Filed: 1982-05-06
Abstract: A light source unit for an endoscope has a socket (38) to which a plug at the end of a universal code of the endoscope is attached. The socket has a socket body (54) with a recess (58) in which the plug is fitted and socket terminals (42-1) to which plug terminals are connected. A number of slots (60-1) opening to the recess are formed in the socket body (54). The slots (60-1) extend along the insertion path of the plug terminals and have the socket terminals (42-1) therein. The socket terminals (42-1 cannot be directly touched by a finger or the like. When the plug is attached to the socket (38), the plug terminals come into contact with the socket terminals (42-1) properly.
Patent EP-0075658-A1 (EP)
Inventor: TRENBEATH STEVEN LAWRENCE
IPC: C01C3/14
Filed: 1982-06-30
Abstract: Stable isocyanic acid compositions containing isocyanic acid in an organic solvent therefor, having a small amount of a labile halide compound, such as carbamoyl chloride.
Patent EP-0086868-A1 (EP)
Inventor: SCHARMER WOLFGANG DIPL-ING
IPC: B65G27/20
Filed: 1982-07-27
Abstract: Manufactured goods such as cast components to which molding sand is still adhering, are treated in a vibratory conveyor chute for cleaning and cooling the goods. As the goods travel down the chute they are exposed to force components extending perpendicularly and across to the travel direction along the length of the chute. These force components impose on the goods a revolving motion along a helical path. This revolving motion may be improved or intensified by directing the resulting force components (R, R') of the force causing the revolving motion to extend at a spacing from a so-called "center of gravity line" (S, S') defining or interconnecting the center of gravity points along the length of the vibratory chute system. This spacing causes a distribution of the goods (11) in the chute such that the goods (11) have a slanted surface (10) in the chute (1). Thus, the vertical acceleration values (kv) are larger at the upper return zone 26 than they are at the lower return zone 27. This type of treatment combined with the conveying movement is applicable to various kinds of goods and treatment procedures.
Patent EP-0072464-A1 (EP)
Inventor: LAMY JEAN-MICHEL
IPC: F16H63/30
Filed: 1982-07-28
Abstract: Dispositif manuel de commande de passage des rapports d'une boîte de vitesses. Le levier de commande manuel (1) de faible démultiplication est articulé en un point fixe (2) par l'intermédiaire d'un bloc élastique (3). Les mouvements longitudinal et transversal du levier (1) sont transmis par une bielle de passage (6) à une biellette de démultiplication (9) en un point de laquelle se trouve fixé par une articulation (16) un levier de sortie (14) lié à l'axe de commande (13) portant le doigt de passage (12) des vitesses dan la boîte de vitesses. La démultiplication du mouvement du levier manuel (1) est donc réalisée au voisinage immédiat de la boîte de vitesses et en partie à l'intérieur de cette dernière. Il en résulte un excellent rendement à la fois en effort et en déplacement.
Patent EP-0073464-A1 (EP)
Inventor: ROHRSCHEID FREIMUND DR
IPC: C07C51/31
Filed: 1982-08-25
Abstract: 1. Process for preparing naphthalene-1,4,5,8-tetracarboxylic acid by pyrene oxidation, characterized in that pyrene, dissolved or suspended in a lower alkanoic acid, is oxidized in the presence of a catalytically effective metal compound of chromium, manganese, iron, cobalt, nickel or copper by means of an organic peroxy compound or a system in which under the given reaction conditions an organic peroxy compound is formed, to yield an intermediate compound Z1 and the said intermediate is converted in known manner using chlorine (hypochlorite) in an aqueous alkaline solution into the alkali salt of naphthalene-1,4,5,8-tetracarboxylic acid.
Patent EP-0074060-A1 (EP)
Inventor: PERRIER JEAN
IPC: F16L3/20
Filed: 1982-08-31
Abstract: A spring support device capable of large vertical displacement for supporting relatively light pipework, such as the purge pipes of a boiler in a power station. The device includes an articulated parallelogram linkage (6) comprising a first hinge (7) connected to a fixed point, a second hinge (8)connected to the load, and vertically opposite the first hinge, and two side hinges (9, 10) in the same horizontal plane. The two arms (11, 13) of the parallelogram linkage that pass through the first hinge have extensions (12, 14) projecting beyond the first hinge and bearing against a plate (3) which transmits force to a compression spring (2). The extensions (12, 14) are considerably shorter than the sides of the parallelogram linkage.