baber/WOPTO huggingface dataset:
Patent EP-0006985-A1 (EP)
Inventor: ANGER KLAUS DIPL-ING
IPC: H01J37/30
Filed: 1979-05-16
Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Brennweitenbestimmung langbrennweitiger elektronenoptischer Linsen. Gemäß der Erfindung trifft auf die Linse ein im Querschnitt ringförmiges Strahlenbündel mit dem Radius R auf. Dieses Strahlenbündel kann durch Einschwenken einer Ringfeldblende (3) in den Strahlengang zwischen ein Kondensorlinsensystem (2) und die Linse (4) ausgeblendet werden. Durch eine Lochblende (7) mit einem Durchmesser, der etwa gleich dem des Fehlerscheibschens der Linse (4) ist, wird die Lage der hinteren Brennebene bestimmt. In einer im Abstand z2 hinter der Lochblende liegenden Registriereinrichtung (8), z.B. auf einer Fotoplatte, wird der Radius r des durch die Lochblende (7) hindurchgetretenen Strahlenbündels gemessen. Die Brennweite f wird nach der Formel f =(R/r) z2 ermittelt. Durch das verwendete Strahlenbündel ringförmigen Querschnitts verkleinert sich das Fehlerscheibchen. Dadurch verringert sich die Unbestimmtheit des Abstandes z2 und damit der Fehler bei der Brennweitenbestimmung. Das Verfahren kann bei Miktoprojektoren zur Brennweitenbestimmung bei der Abbildungslinse angewendet werden.
Patent EP-0006605-A1 (EP)
Inventor: DRAKE KENNETH
IPC: C08L51/00
Filed: 1979-06-25
Abstract: Fluid, stable polymer-polyols are provided which consist of an organic polyol medium and an interpolymer of a minor amount of polymerized ethylenically unsaturated dicarboxylic acid anhydride, such as maleic acid anhydride, and a major amount of at least one different polymerized ethylenically unsaturated monomer, the interpolymer being in the form of particles that are stably dispersed in the polyol. Polyurethane foams produced from these polymer/ polyols display improved load bearing and compression set when compared with polymer/polyols produced in a similar manner without the ethylenically unsaturated dicarboxylic acid anhydride: elastomers so produced have improved tensile modulus and tear properties.
Patent EP-0011212-A1 (EP)
Inventor: NAARMANN HERBERT DR
IPC: C08F20/60
Filed: 1979-11-05
Abstract: 1. Polymers having a K value of from 20 to 140, which contain structural units of the general formula (I)  see diagramm : EP011212,P6,F1  where R**1 = H or CH3 A =  see diagramm : EP0011212,P6,F2  where R**2 = H, OH, O-alkyl, alkoxyalkyl or O-Si(CH3 )3  and R**3 = OH, NH-CO-NH2 , C1 -C12 -alkyl, C6 -C12 -cycloalkyl, C6 -C14 -aryl or  see diagramm : EP0011212,P7,F3  where R**4 = C1 -C12 -alkyl, C6 -C12 -cycloalkyl and C6 -C14 -aryl and n = 0 or 1.
Patent EP-0005064-A1 (EP)
Inventor: DIETSCHE THOMAS JAMES
IPC: C07D213/61
Filed: 1979-04-20
Abstract: 2,3,5,6-Tetrachloropyridine and pentachloropyridine are prepared by reacting a chlorosubstituted (trichloromethyl) pyridine in the liquid state with chlorine at temperatures of at least about 160°C in the presence of a Lewis acid type catalyst. The products are useful as intermediates for the preparation of herbicides and pesticides.
Patent EP-0006836-A1 (EP)
Inventor: KACAL GARY W
IPC: F16K27/06
Filed: 1979-05-02
Abstract: A ball valve structure has a removable upper cover plate (16) to permit the ball (34) to be removed from the valve body. A separate cam tool (90, Figs. 8-10) after removal of the cover plate is positioned within the bore of the ball which has been partially rotated from the full open position, and upon a return rotation of the ball with the cam tool therein to a full open position an adjacent spring urged seat ring (58) is cammed away from the ball to a retracted position. A seat ring retainer (82) is then actuated to hold the seat ring in the retracted position. The cam tool is then utilized in a similar manner to cam the other opposite seat ring in retracted position. The ball may then be removed with the seat rings for replacement or repair as desired. The seat rings and seals (70) thereon may be removed and replaced in such a manner without removal of the valve from the flowline in which the valve is positioned.
Patent EP-0023014-A1 (EP)
Inventor: OHSAKA YOHNOSUKE
IPC: C07D301/08
Filed: 1980-07-15
Abstract: Hexafluoropropene oxide is prepared with good conversion and high selectivity by reacting hexafluoropropene with oxygen in the presence of at least one barium compound selected from the group consisting of barium oxide, barium hydroxide and barium salts as a catalyst.
Patent EP-0029535-A1 (EP)
Inventor: ST PIERRE PHILIPPE DOUGLAS
IPC: B23B51/00
Filed: 1980-11-07
Abstract: An improvement in drill bits and certain types of saw has been achieved through the use of diamond compact cutters which comprise polycrystalline diamond in the center of an annular metal carbide ring. In this design, the metal bonded carbide provides support for the polycrystalline diamond during use of the drill bit or saw helping to prevent cracking and chipping, thus prolonging its useful life. 
     Fig. 2 shows a sectional view of a drill bit utilizing this concept. Drill bit crown 22, having central bore 23, is supported on one end of shaft 20, and the compact cutters 10 protrude from the crown. These cutters have a metal carbide support which is cup shaped to provide the further advantage that when the cutter is worm, there is no polycrystalline diamond remaining. Thus, all the useful diamond is expended in the drilling process.
Patent EP-0026948-A1 (EP)
Inventor: HUPFELD JURGEN DR
IPC: C09C1/36
Filed: 1980-09-16
Abstract: 1. A process of producing titanium dioxide pigments by calcining the precipitation, which may be doped, annealing in an oxygen-containing atmosphere, cooling and grinding, characterized in that a photostable and/or weather-resisting titanium dioxide-rutile pigment is produced in that calcined titanium dioxide is subjected to tempering in the range of 250 to 1000 degrees C in an oxygen-containing atmosphere, preferably air, and the tempered material is quenched.
Patent EP-0026977-A1 (EP)
Inventor: JENDRICK RODNEY JOSEPH
IPC: G03G15/00
Filed: 1980-08-29
Abstract: Sheet feeding apparatus for a sheet feeder utilizing a cassette sheet supply of more than one sheet size comprising a rotatable feed roll shaft 75 having one feed roll 76 permanently attached at one end and a second axially movably mounted feed roll 82 on the other end of the shaft with a yoke means 85 to axially move the roll. The feeding apparatus is used with a sheet cassette 61 which, when inserted in the sheet supply station, engages positioning means 88 responsive to the insertion of the cassette which thereby automatically positions the movable feed roll 82 so that both feed rolls are positioned substantially the same distance from the sheet edge irrespective of the size of the sheet material. In this manner the sheet feeding apparatus automatically adjusts itself for feeding sheets of various sizes.
Patent EP-0034601-A1 (EP)
Title: Chambre de combustion
Inventor: OLSSON KARL BOERJE
IPC: F23C3/00
Filed: 1981-03-09
Abstract: Une chambre de combustion possede une pluralite de chambres laterales (10, 12, 14, 16) distribuees autour de la region centrale de la chambre. Une paroi de separation (28) divise la chambre en une premiere chambre et en une seconde chambre (32 et 34) et se prolonge par des portions de paroi (28a) se projetant partiellement dans les chambres laterales et rattachees a leurs parois laterales (12a, 12b), et laissant une ouverture de passage du flux (30) au bord extreme (28b) de la portion de paroi respective (28a). La paroi de separation (28) est pourvue d'une pluralite de points de concentration de contraintes (36, 38, 40, 42) sur lesquels la cloison (28) se rompt en fissures etroites pendant les quelques premiers demarrages et chauffages jusqu'a atteindre la temperature de fonctionnement normal et les refroidissements se produisant a l'arret, de maniere a ce que la cloison (28) soit exempte de contraintes lors des fonctionnements ulterieurs de l'appareil.
Patent EP-0040783-A1 (EP)
Inventor: HEFT JOSEF ING GRAD
IPC: H01R13/11
Filed: 1981-05-18
Abstract: 1. A contact spring for a flat cable connection comprising a U-shaped base part (2) and two contact spring arms (3a, 3b) which project at right angles from the arms of the U (30, 31) of the base part and together form a contact spring contact (4) for a contact pin or contact blade, and which can be inserted into a channel-like cavity of a contact spring strip with the base part being arranged transversely to the course of the cavity with the contact spring arms leading ; and having a pair of contact blades (16) which project from one of the two arms of the U of the base part in opposition to the course of the contact spring arms and which protrude from the contact spring strip and form a cutting clamping contact for a wire-form conductor, characterised in that the arms of the U (30, 31) of the base part (2) are so dimensioned as to have different lengths ; that the contact spring arm which protrudes from the longer arm (30) of the U is formed as a rigid plate (3a) having a width which corresponds to the length of the arm (30) of the U ; and that the springy contact spring arm (3b) which projects from the shorter arm (31) of the U has a width which is less than half the width of the rigid plate (3a) ; that, furthermore, the springy contact spring arm (3b) is arranged approximately centrally with respect to the rigid plate (3a), and at its free end (32) is provided with an attachment (34) which is directed away from the free end (33) of the arm of the U (30, 31), but set back in relation to the edge of the rigid plate (3a), and which widens the contact spring arm (3b) at one side ; and that at its free end (36), the rigid plate (3a) has an incision (37) separating a flat part-region (38), which essentially lies outside the projection of the springy contact spring arm (3b) on to the rigid plate (3a), and another part-region (39) which cooperates with the springy contact spring arm (3b) and is bent in towards the latter at its end.
Patent EP-0041212-A1 (EP)
Inventor: FRIEDEMANN WOLFGANG DR
IPC: C09D1/02
Filed: 1981-05-25
Abstract: This invention relates to an adhesive composition based upon an aqueous solution of alkali metal silicate with a content of powdered inorganic filler and optionally organic polymer, which comprises an aqueous alkali metal silicate solution containing: (a) from about 25 to 50 percent by weight of dispersed crystalline calcium carbonate; (b) from about 2 to 10 percent by weight of quartz powder with a particle size of up to about 15  mu m and a specific surface area of at least about 3.5 m2/gm; and (c) from 0 to about 24 percent by weight of a 50 percent by weight stable, aqueous dispersion of an alkali-resistant organic polymer based upon acrylate, styrene/acrylate, styrene/butadiene, or a mixture thereof based on the weight of the total composition.
Patent EP-0048803-A1 (EP)
Inventor: MONTIER PATRICK
IPC: F42B14/06
Filed: 1981-07-31
Abstract: A sabot arrangement is produced in accordance with an improved manufacturing method. The sabot arrangement includes a rotational symmetrical sabot body having a central axial bore and radial separating grooves or slots. The radial grooves or slots divide the sabot body into a plurality of equal segments. These slots nearly sever the sabot body into separate segments, so that a material bridge remains near a forward edge and a material bridge remains near a rear edge of the sabot body, which material bridges function as fracture zones.
Patent EP-0052718-A1 (EP)
Inventor: LUZZANA MASSIMO
IPC: G01N27/416
Filed: 1981-09-29
Abstract: A method and apparatus for the determination of the concentration of certain chemical substances such as glucose, urea, enzymes, etc. in biological solutions such as blood, serum, urine, using a technique of differential pH measurement using two pH electrodes, and measuring pH changes in the solutions after the addition of specific reagents, the concentration being determined according to the formula [sample] = FCAL x (ApH c  - ΔpH b  - ΔpH o ) wherein [sample] is the concentration of the substance in the sample, FCAL is a calibration factor, ΔpH c  is the measured pH of the reacted sample, ApH b  is a pH correction for the reaction initiating compound, and ΔpH o  is a correction for background pH changes.
Patent EP-0054665-A1 (EP)
Inventor: TRESEDER ROBERT CASSIUS
IPC: G11B25/04
Filed: 1981-10-20
Abstract: A hermetically sealed, helium filled magnetic disk data storage file comprises a two-part thin walled container (11) enclosing the disk file. The container body is clamped between the baseplate of the disk file and an external mounting bracket (20) which mounts the file to a frame (10) so that the container "floats" relative to both the frame and the baseplate. A double-seamed viscoelastic seal (15) is employed for attaching the cover (11C) of the container to the container body (11A).
Patent EP-0078334-A1 (EP)
Inventor: SCHMITTNER DIETER DIPL-ING
IPC: G01F1/11
Filed: 1981-10-30
Abstract: A calibratable turbine wheel gas meter includes a tube member having a lateral stud which carries a counter. An exchangeable measuring insert comprises an inlet member including an inlet body and an outlet member including an outlet body and is inserted into the tube member to abut a stop formed in the outlet member. Together with the tube member the inlet member forms a pressure space to measure the static pressure therein. The outlet member is formed integrally with the outlet body and is combined overlappingly with the inlet member. The inlet member and the outlet member define a passage in which the blades of a turbine wheel are located and the shaft of the turbine wheel is journalled in a bearing housing disposed in the outlet body. A pulse generator is arranged to cooperate with the turbine wheel and generates pulses, the number of which is dependent on the volume of gas passing through the passage. Each measuring insert is calibrated by comparison to a standard measuring insert. The counter is drivingly connected to the shaft of the turbine wheel by means of a transmission shaft and the counter is adapted to the respective calibrated measuring insert by exchanging the associated transmission gear.
Patent EP-0052843-A1 (EP)
Inventor: BUHRER CARL F
IPC: H01J61/30
Filed: 1981-11-13
Abstract: A vacuum-tight assembly, such as a discharge tube (40) for a sodium vapor arc lamp, includes a high density polycrystalline ceramic body, such as alumina or yttria, having a cavity (42), at least one closure member (44), and a sealing material (56). The closure member (44) is formed from a molybdenum-titanium alloy containing a small amount of nickel, cobalt, or copper. The nickel, cobalt, or copper forms a relatively low melting eutectic with titanium, thereby facilitating fabrication of closure members by sintering. The closure member (44) and the sealing material (56) have thermal coefficients of expansion closely matched to the thermal coefficient of expansion of the ceramic body over a wide temperature range.
Patent EP-0070926-A1 (EP)
Inventor: BANNON ROBERT PATRICK
IPC: B01D3/42
Filed: 1981-07-30
Abstract: O A novel crude oil fractional distillation process, characterized by improved regulation of reflux in the de-entrainment section of a fractional distillation column, is disclosed. 
     A first major part of the condensed liquid (line 5) withdrawn from the first tray 6 above the flash zone 3 of the column 1 is returned to the column 1 at a zone higher than said tray 6 but below the lowest sidedraw tray 4. A second part of the condensed liquid is returned to the flash zone 3.
Patent EP-0055878-A1 (EP)
Inventor: WROBEL WOLFGANG
IPC: G02C7/02
Filed: 1981-12-17
Abstract: 1. A spectacle lens for short-sighted persons, consisting of highly refractive base glass having a circular or oval lenticular ground-out portion on its rear face, characterized in that the lenticular ground-out portion (2) is ground passing into a meniscal, negative base glass (1), the diameter of the ground-out portion being selected smaller than usual (for example, 22-25 mm at - 14 diopters).
Patent EP-0041355-A1 (EP)
Inventor: WATANABE YOSHIAKI
IPC: C07H17/08
Filed: 1981-05-27
Abstract: Novel erythromycin compounds of the formula
     wherein R 1  is hydrogen or methyl, and a pharmaceutically acceptable salt thereof are disclosed. They exhibit excellent antibacterial activity against Gram-positive bacteria, acid stability and in vivo activity.
Patent EP-0047048-A1 (EP)
Inventor: FELLS ANTHONY CRISPIN
IPC: F23N1/02
Filed: 1981-06-02
Abstract: The present invention relates to a gas burner (10) comprising a cylindrical burner head (11) having a plurality of burner orifices (15) in a cylindrical surface thereof, fan means (23, 24, 25) for supplying a gas air mixture to said burner head (11) gas supply means (26) for supplying a combustible gas within the vicinity of the fan inlet (25) so that the fan means (23, 24, 25) takes in atmospheric air and gas from said supply means and a zero governor (40) included in the gas supply means, said governor (40) being connected between the outlet for said fan means (23, 24, 25) and a combustion chamber for the burner (10) so that when the pressure in the combustion chamber relative to the fan supply means (23, 24, 25) increases above a predetermined datum the gas supply is shut off.
Patent EP-0053474-A1 (EP)
Inventor: HOSHIMI SUSUMU
IPC: H03M13/27
Filed: 1981-11-25
Abstract: A PCM signal processing apparatus arranged to receive successive transmission blocks, each of which comprises time-interleaved PCM data, error correction and error detection words, and which comprises a detecting circuit (13) responsive to error detecting words for detecting if a received transmission block contains an error, an error identifying circuit (17) for identifying as being erroneous each of the time-interleaved words included in the received transmission block which has been detected as containing an error, a de-interleaving circuit (15), a syndrome generating circuit (16), an error correcting circuit (19), an error compensating circuit (20), an inhibit device (23) for inhibiting the error compensating device in the state where the location of the erroneous word is unknown in a predetermined successive number of blocks, and a slew rate control circuit (25) or filter device coupled to the de-interleaving circuit (15) for passing the de-interleaved PCM word at a predetermined slew rate, and a switching circuit (24) responsive to the output of the inhibit circuit (23) selecting the slew rate of the slew rate control circuit (25) or the filter device.
Patent EP-0054496-A1 (EP)
Title: Elément de verrouillage pour frein à disque à étrier coulissant et frein à disque comportant un tel élément de verrouillage
Inventor: DENREE MICHEL
IPC: F16D55/227
Filed: 1981-12-15
Abstract: Le frein comprend un étrier (14) monté coulissant sur un support fixe (10) au moyen de deux colonnettes axiales (18) coopérant avec des alésages formés dans l'étrier. Les alésages sont munis d'échancrures (42, 44) permettant l'introduction des colonnettes (18) transversalement et sans démontage de ces dernières. Une des colonnettes (18) est munie d'un manchon de verrouillage (48) maintenu solidaire de l'étrier (14) au moyen d'un élément de verrouillage (54) dont une portion (56) passe par un orifice (58) formé dans l'étrier (14) en verrouillant le manchon (48) et dont une autre portion (66) en forme de U immobilise l'élément de verrouillage (54) par rapport à l'étrier. (14). Application au freinage des véhicules automobiles.
Patent EP-0051673-A1 (EP)
Title: Television a pre-paiement
Inventor: HYATT ROBERT K
IPC: G07F7/00
Filed: 1981-05-18
Abstract: Procede et appareil permettant l'acces a un service commande electriquement pendant des periodes de temps predeterminees, utilisant un support d'enregistrement a doubles filets magnetiques (12) codes dans un format crb avec des donnees indiquant les periodes de temps pendant lesquelles l'acces doit se faire. Les donnees sont lues par un lecteur (1) et stockees dans un processeur (40) ayant une horloge interne (47) et un comparateur (53) pour comparer les sorties de temps instantanees de l'horloge avec les donnees des periodes de temps predeterminees codees sur le support d'enregistrement (12) pour valider un dispositif de securite (141 et 143) seulement lorsque le temps instantane se trouve a l'interieur de la periode de temps predeterminee.
Patent EP-0058889-A1 (EP)
Inventor: KATSUMATA RYOICHI
IPC: C07H21/04
Filed: 1982-02-11
Abstract: Disclosed is a novel vector, plasmid pCG1, and a process of producing plasmid pCG1 from Corynebacterium glutamicum.
Patent EP-0074459-A1 (EP)
Inventor: WILBS THOMAS
IPC: B25H1/00
Filed: 1982-03-10
Abstract: On a drill stand, an extension arm (14) is clamped pivotably and height-adjustably to a circular cylindrical column (12), on which arm a drilling machine guide consisting of slider (16) and holder (18) is suspended by means of a rack element (22, 24). The column (12) is clamped pivotably about its axis in a plinth (34) inside the table (10). Extension arm (14), slider (16), holder (18) and plinth (34) have the same profile cross-section and are cut from the same extruded profile. This profile has a circular cylindrical guide channel of larger diameter which is equal to the external diameter of the circular cylindrical column (12) and which in the case of the holder (18) is equal to the standardised neck diameter of a drilling machine (20). The profile has another channel of smaller diameter which is equal to the external diameter of a rack support tube (22). The essential parts of the drill stand consist of extruded aluminium profiles which require no finishing. <IMAGE>
Patent EP-0061076-A1 (EP)
Inventor: KROON CORNELIS
IPC: H01F29/02
Filed: 1982-03-11
Abstract: The fine control winding is designed as a layer winding with at least two parallel branches and subwinders per control stage. At least two parallel conductors are assigned to each branch. The layer winding consists of two or more layers wound on top of one another radially. The subconductors from which the subwindings of each control stage are built are looped such that the last turn, or a part of the last turn, of a subconductor in one layer is connected to the first turn of a part of the first turn of this subconductor in the next layer.
Patent EP-0067984-A1 (EP)
Title: Verfahren zum Ätzen von Chrom und Ätzmittelmischungen zur Durchführung des Verfahrens
Inventor: ABOLAFIA OSCAR ROBERT
IPC: H05K3/06
Filed: 1982-06-02
Abstract: Es wird ein Verfahren zum Ätzen von Chrom angegeben, bei dem das Metall mit einer sauren, wässrigen Ätzmittelmischung in Berührung gebracht wird. Die Mischung enthält eine anorganische Säure, vorzugsweise Schwefelsäure, in einer Menge von 1,5 bis 20 Gew.% und eine Thioharnstoffverbindung in einer Menge von 1 bis 10 Gew.%. Die Ätzzeit liegt im Bereich von 10 Sekunden bis 10 Minuten. Das Ätzen erfolgt bei einer Temperatur im Bereich von 50 bis 90°C. Der pH-Wert der Ätzmittelmischung liegt im Bereich von 0 bis 2.
Patent EP-0073499-A1 (EP)
Inventor: HERMANN JURGEN
IPC: B63C11/32
Filed: 1982-08-27
Abstract: The device is based on at least one memory containing the decompression parameters of a table of diving depth and times. It estimates and compares measured values of diving depth and times with those contained in the memory. At each moment of the diving, the total climbing time (15) including the imposed decompression stages (16) depending on the duration (13) and on the depth (14) of the diving may be displaced, and/or there is provided a device which transforms, for going to a new depth, the real base time in a time equivalent to this new stage. A single air/water interchangeable pressure sensor is used comprising preferably a piezoresistive cell. LED diodes are lit, if the maximum climbing speed is exceeded (10), if a decompression stage is reached (11) and if the device is out of work (12) by exceeding the time and/or the depth.