baber/WOPTO huggingface dataset:
Patent EP-0046819-A1 (EP)
Inventor: VERBEEK ANTONIE EGBERT
IPC: G01N31/00
Filed: 1980-09-02
Abstract: A reagent for the quantitative determination of water, used together with an iodine-containing titrating solution, the reagent containing sulfur dioxide and an anhydrous alkali metal trimethyl acetate or a mixture of anhydrous alkali metal trimethyl acetate and an anhydrous alkali metal salicylate dissolved in 2-methoxy ethanol, methanol or in a mixture of 2-methoxy ethanol and methanol in a volume ratio of at least 10 to 90. This reagent is distinguished in that the increase of the blind value is minimized even at elevated temperatures.
Patent EP-0014541-A1 (EP)
Inventor: SOUTHERDEN LINDSAY MORGAN
IPC: C04B14/30
Filed: 1980-01-24
Abstract: The present invention provides an improved building material which comprises a mixture of an alumina based aggregate, cement, a multi-polymer emulsion and a lightweight aggregate or concrete sand.
Patent EP-0016597-A1 (EP)
Inventor: GLASGOW JOHN ARTHUR
IPC: G01S13/10
Filed: 1980-03-10
Abstract: It has previously been known to construct a radar system so that it transmits long pulses and short pulses. The long pulses, which may be subject to pulse compression, are used, because of their high energy, to detect objects at long range whilst the short pulses, because of their good resolution, are used to detect objects at short range. This known technique suffers from the disadvantage of requiring an exceedingly expensive transmitting and receiving system. 
     A transmitter (13) is controlled by unit (14) to produce pulses at T. The frequency of each pulse is changed so as to divide it into two consecutive signals of different frequencies. These consecutive signals are of different duration and are used, as before, for long range and short range detection respectively. 
     The receiver (19) has a local oscillator (18) whose frequency is also changed so as to make the receiver respons ve to the long and short signals when radar returns are expected from long and short ranges. 
     In an alternative embodiment two separate receivers are used.
Patent EP-0018272-A1 (EP)
Inventor: COMBETTE MARC
IPC: B25C1/14
Filed: 1980-04-09
Abstract: A power adjustment for a piston-type powder actuated fastener driving tool wherein a tube is slidably disposed in the barrel of the tool, the tube containing the driving piston of the tool. The tube has a radially inwardly extending flange at its breech end which engages a radially outwardly extending surface on the piston. Means for moving the tube axially of the barrel are provided so that the distance between the flange and firing chamber can be varied whereby the gas expansion chamber between the firing chamber and the rear face of the piston can be varied thereby varying the power with which the piston is driven.
Patent EP-0022400-A1 (EP)
Inventor: SOLAL REYNALD
IPC: B65D90/48
Filed: 1980-06-27
Abstract: 1. Device for selecting and automatically feeding reservoirs of a temporary storage assembly for pulverulent or granular products, the device comprising a detector associated with each reservoir, the said detector delivering an information signal concerning the level, a plurality of electronic selection circuits comprising a comparator (2), and a circuit (5, 6) capable of delivering a command to feed the selected reservoir, characterized in that the device comprises, for each reservoir, firstly one of the selection circuits comprising an integrator (1) of a stabilised voltage, delivering a sawtooth signal, the said signal delivered each integrator (1) having the same slope and the abovementioned comparator (2) of the said selection circuit comparing the said sawtooth signal and the information signal concerning level, coming from the relevant reservoir, and, secondly, an abovementioned circuit (5, 6) capable of delivering a command to feed the relevant reservoir and consisting of a flip-flop logic device, as well as, for all the reservoirs together, a circuit of the NAND type (7) which has as many inputs as there are reservoirs, and capable of addressing a disabling signal to all the selection circuits when only one comparator (2) has been triggered.
Patent EP-0030209-A1 (EP)
Inventor: PETREE HARRIS E
IPC: C07D249/08
Filed: 1980-11-03
Abstract: Process for the preparation of 1,2,4-triazole comprises contacting hydrazine or its aqueous solutions with at least about 2.5 moles of formamide at a temperature of 140 DEG  to 210 DEG  C. and then recovering the resultant 1,2,4-triazole in yields of 92-98% with 94-98% purity. The formamide is maintained in an excess over about the 2.5 molar amount consumed in the reaction with the hydrazine. Recovery steps for isolating the 1,2,4-triazole are disclosed.
Patent EP-0035693-A1 (EP)
Inventor: SELLNER RUDOLF
IPC: H01H71/10
Filed: 1981-02-25
Abstract: 1. A switching mechanism for an electrical installation switch, in particular for an earth-leakage circuit breaker, having a release-gear position, at which a contact area on a release lever (18) is pressed resiliently against a contact area on a ratchet lever (12), characterized in that the contact area on the ratchet lever (12) and/or on the release lever (18) is convex towards the other.
Patent EP-0037528-A1 (EP)
Inventor: UNDERWOOD GERALD TIMOTHY
IPC: B65D59/02
Filed: 1981-03-26
Abstract: Zum Schutz von vorspringenden Teilen oder Stutzen oder Anschlüssen von Leitungen oder dgl. ist eine Schutzkappe 10 aus flexiblem Material vorgesehen, die leicht lösbar auf die vorspringenden Teile aufgebracht werden kann und dort einen sicheren Sitz aufweist. Dies wird erreicht durch einen zylindrischen hohlen Abschnitt mit einem geschlossenen Ende 13 und einem offenen Ende und wenigstens je einem inneren und einem äußeren Eingriffsbereich 11,12 von vorbestimmtem Durchmesser, der über den vorspringenden Teil oder in die Ausnehmung oder Bohrung des vorspringenden Teiles 22 fest eingesetzt werden kann. Von diesem Eingriffsabschnitt springt ein dünnwandiger, hülsenförmiger Abschnitt 15 vor, der als flexibler Griffabschnitt verwendet oder aber über die Außenfläche des freien Endes des vorspringenden Teiles 22 zurückgefaltet werden kann, um so den Sitz der Kappe an dem vorspringenden Teil zu verbessern, wie dies die Fig. 5 zeigt.
Patent EP-0063166-A1 (EP)
Inventor: BVLGARI GIOVANNI
IPC: A44C5/22
Filed: 1981-04-16
Abstract: A fastening device is provided for joining together the two ends of a flexible band, for example a watch strap, belt or other strap, which fastening device permits such bands to be put on and taken off without being completely opened, but at the same time avoids the disadvantages of known folding fasteners and, in particular, guarantees continuous flexibility over the entire length of the band. For this purpose, the first end part (3) has a loop (6) directly at its end (5), through which loop the second end part (4) is passed, and it also has a centrally arranged arresting pin (22) at a distance from the loop (6) depending on the individual body size of the wearer and a closure device (12) is provided directly at the end (11) of the second end part (14), which closure device has a likewise centrally arranged aperture (21) and engages with the aperture (21) above the arresting pin (22) in the closed position. Both the loop (6) and the closure device (12) are constructed as U-shaped mouldings, the base web (16) of the closure device (12) having a blind bore hole (17) extending from one of the two limb sides in its longitudinal direction, inside which blind bore hole a bolt (18) is mounted so as to be longitudinally displaceable so that a permanent attachment of the two end parts (3 and 4) is guaranteed. <IMAGE>
Patent EP-0042966-A1 (EP)
Inventor: BANNON ROBERT DANIEL
IPC: H03M13/00
Filed: 1981-05-19
Abstract: System for detecting and correcting data bit errors caused by alpha particle impingement into high density storage units. The data word is read into and out of a high density storage unit and generated check bits are stored in low density storage immune to alpha particle radiation. Data bits and check bits, addressed in parallel are read out to error detector and corrector to determine the existence of an error only in a data bit and correct the state of the erroneous bit. The number of check bits and required parity checking circuitry is reduced since no error checking of check bits, presumed to always be correct because of the use of low density storage occurs.
Patent EP-0043966-A1 (EP)
Inventor: FOCK JURGEN DR
IPC: C08G65/28
Filed: 1981-06-27
Abstract: 1. Process for the preparation of polyesters with at least two free hydroxyl groups being retained on the starting alcohol, the hydroxyl groups being separated from one another by at most three carbon atoms and the hydroxyl group at the end of the polyester chain being blocked, optionally reversibly, but stable towards the conditions of acetal or ketal splitting, characterized in that a) an oxirane of the formula  see diagramm : EP0043966,P6,F1  in which R**1 denotes a hydrogen radical, an optionally halogenated hydrocarbon group with 1 to 30 carbon atoms or the group -CH2 OR**2, in which R**2 denotes an alkyl or alkenyl group, and wherein the groups R**1 within the polymeric molecule are identical or different, is added onto a trihydric or polyhydric alcohol in which at least two hydroxyl groups are acetalised or ketalised, b) the hydroxyl group of the resulting polyester-monool is blocked by reaction with a group, which is reactive in respect of this hydroxyl group, of a monofunctional compound which is stable under the conditions of acetal or ketal splitting, and c) the acetal or ketal is then split by the action of acid.
Patent EP-0047419-A1 (EP)
Inventor: STEMMLER INGO DR
IPC: C08G18/70
Filed: 1981-08-22
Abstract: Herstellung von flüssigen Gemischen von Isocyanatgruppen aufweisenden Verbindungen durch Umsetzung von bis zu 70 Gew.-Teilen an Polyurethanen mit 100 Gew.-Teilen an organischen Polyisocyanaten mit einem unter 50°C liegenden Schmelz- bzw. Erweichungspunkt bei 100-250°C in Gegenwart von katalytischen Mengen an sauren oder neutralen Salzen, Phenolaten, Enolaten oder Alkoholaten von Metallen der 3., 4. oder 5. Hauptgruppe oder der 1., 2., 4., 7. oder 8. Nebengruppe des Periodensystems der Elemente sowie die Verwendung der flüssigen Gemische als Isocyanatkomponente bei der Herstellung von Polyurethankunststoffen.
Patent EP-0049805-A1 (EP)
Inventor: PALETSCHEK MANFRED ING-GRAD
IPC: F16D47/02
Filed: 1981-09-29
Abstract: 1. A bearing for a flywheel for a crankshaft of an internal combustion engine, - wherein the flywheel (3) and a clutch (20 to 23) form one component and - wherein a rotationally resilient elastomer coupling (12) is arranged between the crankshaft (9) and the clutch (20 to 23), characterized in - that the elastomer coupling (12) is also bendably resilient and is arranged between the input end (8) of the crankshaft (9) and the rigidly connected component consisting of the flywheel (3) and the clutch (20 to 23), and - that the component is rotatably mounted by means of pivots and thrust bearings (6 and 16) and is secured against wobble movements.
Patent EP-0053400-A1 (EP)
Inventor: HAMAMOTO TOSHIKAZU
Filed: 1981-12-02
Abstract: Disclosed is a process for preparing malononitrile which comprises reacting diazoacetonitrile with hydrogen cyanide in the presence of a copper compound in a solvent. The diazoacetonitrile may be formed in a reaction mixture by reacting aminoacetonitrile with nitrous acid in a solvent, which is then subjected to the further reaction as such without isolating it from the reaction mixture.
Patent EP-0081600-A1 (EP)
Inventor: WARNKING RICHARD
IPC: A01B33/12
Filed: 1981-12-11
Abstract: 1. Rotary harrow having a plurality of rotary tools (2a to 2f ; 2'), which are arranged in a row extending transversely relative to the direction of travel (F) and which comprise shafts (3) mounted in a machine frame (1), the said shafts having tool supports (17) bearing prongs (18, 19; 39; 42), the peripheral surface (17a) of the said tool supports being formed across at least a portion of its height as a rotary surface, a guard (20) which covers the tool supports (17) being arranged on the machine frame (1) in front of the tool supports (17), characterised in that the guard (20) comprises an accomodating wall (23) extending in the plane of the tool supports (17), the rear edge of which wall is extended close to the rotary surfaces (17a) and comprises to this end circular cut-outs (24a, 24b, 24c), the accomodating wall (23) extending only as far as the plane (26) or ending in front of the plane (26) in which the geometrical axes (3a) of the shafts are located, and fastening elements (37; 42a), e.g. screws, for the prongs (18, 19; 39; 42) of the tool supports (17; 17') pass through the said tool supports.
Patent EP-0054940-A1 (EP)
Inventor: YOSHIDA KENICHI
IPC: G01R31/02
Filed: 1981-12-18
Abstract: The grounding of an electrical apparatus is monitored by a primary circuit (8) which is inductively coupled to a coil (L 2 ) connected in series between the grounding line (4a) of the power J (4) a d a grounding terminal (12a) on the electrical apparat a which a second grounding line (10) is connected.
Patent EP-0035390-A1 (EP)
Title: A semiconductor integrated circuit device with an improved heat sink
Inventor: WAKABAYASHI TETSUSHI
IPC: H01L23/367
Filed: 1981-02-27
Abstract: semiconductor device comprises a common heat sink (1) joined to a plurality of IC packages (2) mounted on a mother board (6), the common heat sink comprising a base board portion (10), a heat conducting shaft portion (11) arranged perpendicular to the base board portion and a plurality of heat dissipating fins (3) arranged perpendicular to the heat conducting shaft portion and parallel to each other. The common heat sink has one or more slits (12) formed parallel to the heat conducting shaft and extending from the base board portion, the common heat sink being joined (2b) to the plurality of IC packages at sections of the base board portion divided by the slits. The slits prevent the heat sink from causing too much thermal stress on the joins (2b). 
     An alternative common heat sink comprises a plurality of fins each perpendicular to a base portion, with slits formed perpendicular to the fins; this sink and its associated IC packages are suitably mounted on opposite faces of the mother board. 
     The common heat sink is more efficient and robust than individual ones for each IC package.
Patent EP-0065060-A1 (EP)
Inventor: SZABOLCS OTTO DR
IPC: C07C37/84
Filed: 1981-05-07
Abstract: 1. Process for the preparation of diphenols by reacting ketones with phenols in a condensation reaction, wherein hydrogen chloride gas is passed as condensing agent into the reaction mixture, water being added to the mixture after the completion or termination of the condensation reaction and the condensation product obtained then being worked up in a purification process, characterized in that divalent, trivalent or tetravalent metal chlorides are, in quantities which are submolar relative to the ketone, introduced as additional condensing agents into the reaction mixture which is in the liquid state at least at the start of the reaction.
Patent EP-0062866-A1 (EP)
Inventor: DHEIN ROLF DR
IPC: C08G63/12
Filed: 1982-04-03
Abstract: Dianhydromannitol, dianhydrosorbitol, dianhydromannitol semi-esters and dianhydrosorbitol semi-esters are outstanding raw materials for the production of aqueous stoving lacquers based on polyesters.
Patent EP-0062874-A1 (EP)
Inventor: GUNTHER KLAUS DR
IPC: C07C69/60
Filed: 1982-04-05
Abstract: 1. A process for the manufacture of dialkyl maleates of the formula see diagramm : EP0062874,P4,F2  in which R is CH3 , C2 H5 or C3 H7 by esterification of maleic acid or maleic anhydride or mixtures thereof, with aliphatic alcohols of the formula ROH, in which R is defined as above, in the presence of a catalyst, which is characterized by carrying out the esterification by using an excess of alcohol up to 300%, referred to the stoichiometric quantity, under a pressure from 1 to 20 bar gauge and at a reaction temperature by 60 to 100 degrees C above the boiling point of the alcohol used.
Patent EP-0064234-A1 (EP)
Title: Elektrochemische Speicherzelle
Inventor: FISCHER WILFRIED DR DIPL-PHYS
IPC: H01M10/39
Filed: 1982-04-23
Abstract: Die Erfindung bezieht sich auf eine elektrochemische Speicherzelle (1) auf der Basis von Alkalimetall und Chalkogen. Die Speicherzelle (1) weist einen Anodenraum (10) für die Aufnahme des Anolyten und einen Kathodenraum (11) für die Aufnahme des Katholyten auf. Die beiden Räume (10, 11) sind durch einen alkaliionenleitenden Festelektrolyten (3) voneinander getrennt. Die Speicherzelle (1) wird von einem metallischen Gehäuse (2) begrenzt, das auf seinen Innenflächen mit einer elektrisch leitenden Schutzschicht versehen ist. Der Festelektrolyt (3) ist im wesentlichen becherförmig ausgebildet und rundum mit mehreren nach außen gerichteten innen hohlen Auswölbungen (6) versehen. Diese sind in definiertem Abstand voneinander angeordnet. Zwischen je zwei benachbarten Auswölbungen (6) greift ein Stromkollektor (8) ein, der elektrisch leitend mit dem metallischen Gehäuse (2) verbunden ist.
Patent EP-0072514-A1 (EP)
Inventor: JUDAT HELMUT DR
IPC: C07B39/00
Filed: 1982-08-07
Abstract: Die Erfindung betrifft ein Verfahren zur Halogenierung von organishen Verbindungen in der flüssigen Phase mit gasförmigen Halogenierungsmitteln, wobei man die gasförmogen Halogenierungsmittel mit einer solchen Eintrittsgeschwindigkeit in das Reaktionsgefäß eindosiert, daß sich an das Eintrittsstelle des Halogenierungsmittels ein Gasstrahl im Reaktionsgemisch ausbildet und die Bildung von einzelnen Gasblasen an der Eintrittsstelle vermieden wird.
Patent EP-0081257-A1 (EP)
Inventor: VAN DER LELY CORNELIS
IPC: A01C17/00
Filed: 1982-11-19
Abstract: A spreader comprises two rotary distribution members (6, 6), each having a plurality of ejection members (63 to 66). The angle (73) between each ejection member and a plane (54) at right angles to the rotary axis (8) of the respective distribution member is not the same as the corresponding angle of at least one other of the ejection members of the spreader. 
     The result is that particles of the material ejected by the distribution members are less likely to collide with each other, and so a more uniform spreading pattern can be achieved.
Patent EP-0088171-A1 (EP)
Inventor: SCHOLIN HAROLD W
IPC: B29C67/00
Filed: 1982-03-04
Abstract: A sealing ring (1) is disclosed which is formed of an elastomeric material wherein the cross section thereof has a plurality of substantially flat surfaces (2-9), and wherein the inner and outer diameter surfaces (2, 3), which are the sealing surfaces thereof, are molded surfaces. The remaining surfaces (4-9) are machined or cut surfaces. The preferred number of surfaces or faces in cross section is eight, and this has been found to give the best results, although other numbers of surfaces may also be used. Since the ring (1) itself is not a molded ring, but has only the inner and outer surfaces thereof which are molded, there is also disclosed a novel method of making such a ring, as well as a novel apparatus for use in carrying out the method of making the ring, wherein a molded elastomeric sleeve is provided and wherein inclined surfaces (4, 6, 7, 9) are cut therein by knife edges (23, 23a, 29, 29a) in such a way that when the ring (1) is severed from the sleeve (10) (e.g. by knife 18) it will have the desired number of flat surfaces.
Patent EP-0085248-A1 (EP)
Inventor: HIRAGA MASAHARU
IPC: F01C1/04
Filed: 1982-12-20
Abstract: An orbiting piston type fluid apparatus is disclosed. The apparatus includes a housing having a casing (11) with a cylindrical inner surface and a front end plate covering an end opening to the casing. A cylindrical core member (20) is carried in the center portion of the casing (11) and has an outer surface concentric with the inner surface of the casing (11). A blade (14) extends axially between the casing (11) and the core member (20). An orbiting cylindrical member (23) is carried for orbital motion within the annular space between the inner surface of the casing (11) and the outer surface of said core member (20) by eccentric crank portions of a drive shaft (17). The core member has a hollow space (201) at its center portion and a balanceweight (27) is assembled on the drive shaft (17) within the hollow space (201).
Patent EP-0061968-A1 (EP)
Inventor: TURIOT ANDRE
IPC: B64C25/14
Filed: 1982-03-24
Abstract: La présente invention concerne les trains d'atterrissage. Le train se caractérise essentiellement par le fait qu'il comporte une jambe (3) à une extrémité de laquelle est fixé un moyen de roulement (14) autour d'un axe pivotant (11) un amortisseur (15) dont une extrémité (22) est liée à ladite jambe (3), une contre-fiche (24) dont l'extrémité est liée à ladite jambe (3) et des moyens (39, 37, 41) reliant l'extrémité de ladite contre-fiche (24) à l'axe pivotant (11) de façon à faire pivoter la roue lorsque le train est rétracté. Ce train trouve une application avantageuse comme train de fuselage du type tripode.
Patent EP-0082776-A1 (EP)
Inventor: GARY JEAN PIERRE
IPC: E04G23/03
Filed: 1982-12-17
Abstract: 1. Process for altering a roof truss, the said truss (1) being situated between two gable walls (20, 21) - possibly pointed - and comprising a series of gable trusses (2) extending from one front wall (3) to another (4), being disposed at a short distance ("D") from each other between the said front walls so as to form the necessary supports for the roof, and consisting principally of a horizontal beam (5) called a "tie-beam" and two inclined wooden members (6, 7) called "principal rafters", which, in non-convertable rooves, are connected to each other by means of triangular elements such as braces (8, 9, 10, 11) supporting the principal rafters so that the latter can resist the bending stress to which they are subject on account of the weight of the roof, this alteration process being characterised in that, before the triangular elements of each principal rafter are removed, - a vertical slide (12) is firstly secured between the principal rafter (6, 7) and the tie-beam (5) of at least a plurality of gable trusses (2), - beams (15) are simultaneously introduced into the roof and engaged in the slides (12), the said beams having first been divided into a plurality of sections (16, 17, 18 and 19) and the ends of the beam (15) are secured in the gable walls (20, 21) respectively, the sections (16, 17, 18, 19) of the beam being joined by joining means (22, 23 and 24), under each of which is secured a strut (25, 26 or 27), - the base of each of the struts (25, 26 or 27) is then secured by one of the ends of two beam ties (31 and 32) the other ends of which are connected, at least indirectly, to those of the beam sections situated on both sides of the strut in question, - finally, the beam ties are brought into action and, by acting on the strut with which they form a triangle, support the beam, which in turn at least indirectly supports the principal rafters and the roof, which thus allows for the removal of the original triangle of the gable trusses (2) and then for the lining of the roof.