baber/WOPTO huggingface dataset:
Patent EP-0015554-A1 (EP)
Inventor: HAREYAMA KYUICHI C O NIPPON EL
IPC: H03M1/00
Filed: 1980-03-06
Abstract: A comparator circuit comprises a differential amplifier (1) having a pair of inputs (2', 3') and a switch circuit (21) arranged between the pair of inputs (2', 3'), wherein the switch circuit (21) is made conductive state prior to the comparison operation to delete potential difference between the pair of inputs (2', 3'). The comparator circuit which can be easily realized in the form of an integrated circuit device can achieve a high speed operation even for signals fed from a high impedance signal source to the stray capacitance found at the comparator input. The comparator circuit is suitably applied to an AD/converter circuit especially of sequential comparison type.
Patent EP-0022500-A1 (EP)
Inventor: BESAPLAST INHABER HEINZ BENTLE
IPC: B29C48/154
Filed: 1980-06-27
Abstract: 1. Method for the production of a water-stop strip (4 to 21) for building walls in structural and civil engineering, in which a water-stop strip (4 to 21) comprising a plastics profile (6, 8, 11, 12, 15, 16, 18, 19, 20, 21) is produced from extrusions, and is provided with reinforcement rods or strips (1 to 3; 4, 5) connected to the water-stop strip (4 to 21) which run solely at right angles to its length and at spaced intervals, characterised in that the flow from a fishtail die (27) is firstly symmetrically divided in thickness, thereafter the reinforcement rods or strips (1 to 3; 4, 5) are introduced between the layers singly, in periodic sequence with the speed of extrusion, and at right-angles to the length of the strip and to the direction of movement of the layers (30, 31), and then the layers (30, 31) are brought together behind each introduced reinforcement (1 to 3; 4, 5) with the help of a vacuum, and are merged into one body (42) in which the reinforcements (1 to 3; 4, 5) are embedded throughout their entire length by enclosing their ends (4, 5).
Patent EP-0022997-A1 (EP)
Inventor: NAKAHARA YUTAKA
IPC: C07D491/10
Filed: 1980-07-11
Abstract: 2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters and amides of mono and poly alcohols, phenols and amines are provided, useful as stabilizers for organic polymeric materials, and having the general formula:  <IMAGE>
Patent EP-0027589-A1 (EP)
Inventor: ANJOU GUNNAR
IPC: A24F27/00
Filed: 1980-10-06
Abstract: A child-proof container (1) comprising a box (2) and a casing (3), in which the box is insertable, whereby the opening of the box is prevented by means of catch members (4), which in unloaded condition project a small distance into the box from the inner side of one of the flat side surfaces (3a) of the casing, whereby said side of the casing is flexible under influence of side forces (A) acting against each other for raising the catch members above the box (2). (FIG. 1).
Patent EP-0021539-A1 (EP)
Inventor: VAN DE MEERENDONK GERARDUS COR
IPC: B23Q7/04
Filed: 1980-06-20
Abstract: Apparatus for the transfer of products (13) to be machined on machine tools from one working station to the next one, said apparatus consisting of a reciprocably movable carriage (1) of a plurality of gripper units (4A-4D) mounted on the carriage (1) and of a device for opening and closing of each gripper unit, said device being provided with a hydraulic cylinder (23) connected to a feed regulator (81A-81D) of a hydraulic installation, which feed regulator (81A-81 D) is operable by an adjustable cam (48A-48D) on a rotatable shaft (52) 
     The apparatus according to the invention is characterized in that the feed regulator(81A-81D) is provided with a cylinder i (81) with a piston, (86), which is operable by the cam (48), the cylinder space (90) being connected to the single-acting hydraulic cylinder (23) of the gripper unit (71-78) and that the cylinder (81) is provided with a spring biased return valve (92) operable by the piston (86), the housing (93) of said return valve (92) being connected to the main feed line (31) of the hydraulic installation, this arrangement being such, that during the last portion of the active stroke of the piston (86) the return valve (92) is opened and the cylinder space (90) is connected to the main feed line (31).
Patent EP-0027292-A1 (EP)
Title: Procédé pour empêcher la formation de verglas sur les routes et composition de fixation pour la mise en oeuvre de ce procédé
Inventor: DUBOIS ROBERT
IPC: E01H10/00
Filed: 1980-10-09
Abstract: On fixe sur un revêtement routier un sel abaissant le point de congélation de l'eau à l'aide d'une composition aqueuse de fixation qui comprend un mélange d'un agent d'adhésivité constitué par une dispersion aqueuse d'un polymère ou copolymère filmogène et d'un agent hydrophobe hydrosoluble devenant à l'air insoluble dans l'eau. La proportion pondérale d'agent hydrophobe par rapport à l'extrait sec de l'agent d'adhésivité est de 5 à 25%. La composition de fixation est utilisée en une proportion telle que l'ensemble de l'agent d'adhésivité et de l'agent hydrophobe représente en poids à sec de 10 à 120% du poids du sel. La composition aqueuse de fixation peut, en outre, éventuellement comporter un agent anti-mousse et/ou un second agent hydrophobe.
Patent EP-0018095-A1 (EP)
Inventor: JUPP ROBERT ALFRED
IPC: F15B1/02
Filed: 1980-03-21
Abstract: In turf maintenance machines, lifting and lowering of e.g. cutter units and partial counterbalancing of such units in their working positions may be provided by hydraulically actuated means comprising at least one selector valve (1), the or each valve having ports connected with at least one unit lifting ram (55), a pump (17), a reservoir (29) and an accumulator (48). An operator can be certain that, when a unit is lowered to the ground, the required degree of partial counterbalance can be provided. 
     In a preferred machine, the valve is a four position spool valve which in the "lower" position thereof permits discharge of fluid from a ram to the reservoir thereby lowering an associated unit, whilst connecting the pump to charge the accumulator. When the unit reaches the ground the operator moves the valve to the counterbalance position, thereby counterbalancing the unit to the required extent by connecting the ram to the accumulator.
Patent EP-0018217-A1 (EP)
Inventor: BUTLER JAMES GILBURT
IPC: F02P9/00
Filed: 1980-04-18
Abstract: An ignition system is provided for creating a continuous stream of high voltage pulses to each spark plug (8) over a predetermined period of time as controlled by the distributor (7). Below the transformer core (1) is positioned a switch (6) incorporating a plate (9) which is magnetically attracted to the transformer when a current flows through the windings. When the contacts of the contact breaker (5) open, the supply from the battery (4) to the transformer is cut off so that the switch (6) closes under the bias of a spring due to the collapse of the magnetic field created in the core. Closure of the switch (6) restors the circuit from the battery (4) to the primary and secondary windings (2, 3) of the transformer and thus during the whole period that the contact breaker (5) is open the switch (6) will Intermittently open and close, resulting in the application of a rap- ld series of high tension pulses to the respective spark plug (8). This gives greatly improved operating characteristics for the engine. The switch (6) can be isolated from the circuit by a push button switch if desired.
Patent EP-0019378-A1 (EP)
Title: A digital optical memory
Inventor: CURRY DONALD JAMES
IPC: G11B7/125
Filed: 1980-04-24
Abstract: The output beam (32) of a read laser (31) for a digital optical memory (12) is diffracted to provide a pair of equal intensity radial tracking- and focus-control beams (32b) and a plurality of read beams (32a) of substantially equal intensity for simultaneously scanning all of the data tracks (14) of a selected data channel with a different one of the read beams, whereby each of the read beams is optically modulated in accordance with the data recorded on a respective one of the data tracks. The optically modulated read beams are applied to respective detectors (42), whereby the data recorded on the different data tracks are simultaneously converted into corresponding video electrical signals. Those signals are, in turn, output selectively or in parallel.
Patent EP-0043394-A1 (EP)
Inventor: MEUSCHKE ROBERT EDWARD
IPC: G21D1/02
Filed: 1980-07-02
Abstract: This invention provides shielded access to the irradiated heat exchanger tube bundle of a nuclear steam generator contained within a cask (14) after removal from the generator. This tube bundle must be reduced in size and confined for removal from the containment building through hatchways of generally limited size. Access to the enclosed bundle is at the flanged joints (54) of adjacent sections (16) forming the cask and which are vertically separated to permit an oxygen lance to be inserted therein for burning the tubes at that level. A rotatably supported annular seal ring (18) covers the separation and shields against the escape of radiation or irradiated material during the burning process. The ring provides access ports (28, 34) through which roller supports (60) are mounted on the cask and provide access of the cutting tool to the tubes. Rotation of the ring (18) on the rollers permits the tool to be inserted completely around the cask (14). After the tubes within one section of the cask are severed, the tubes and that portion of the cask are removed and the ring raised to a next position where the procedure is repeated.
Patent EP-0013646-A1 (EP)
Inventor: CUMMINGS WILLARD
IPC: B23B31/107
Filed: 1980-01-08
Abstract: The invention relates to a collet and chuck assembly including a tool securing pin (50) slidably received in a radial aperture (44) of the collet (16) and associated with a retaining member (52) which interferes within the aperture (44) with surfaces (48) of the tool securing pin for limiting the travel thereof, wherein the retaining member (52) is a resiliently compressible member having a no-load dimension greater than the dimension of the radial aperture (44) of the collet (16) and being compressible to a dimension allowing its insertion into the aperture.
Patent EP-0026178-A1 (EP)
Title: A spacer means for providing air gaps between a roof or ceiling and its insulation.
Inventor: JONSSON JAN
IPC: E04D13/17
Filed: 1980-08-25
Abstract: PCT No. PCT/SE80/00042 Sec. 371 Date Oct. 7, 1980 Sec. 102(e) Date Oct. 7, 1980 PCT Filed Feb. 12, 1980 PCT Pub. No. WO80/01702 PCT Pub. Date Aug. 21, 1980.The invention relates to a sheet formed as a spacer means for creating air gaps, e.g. between roofing insulation and a roof. The sheet (1) is corrugated and is resiliently compressible transverse to the longitudinal direction of the corrugations (7,8).
Patent EP-0040223-A1 (EP)
Inventor: GRAHAM RODERICK KENNEDY
IPC: C22B1/244
Filed: 1980-11-17
Abstract: Des particules tres fines de minerais sont agglomerees en reduisant en comprimes un melange de particules de minerais et d'amidon brut et en gelifiant ensuite l'amidon. Alternativement, de l'amidon gelifie est ajoute aux particules de minerais et le melange est reduit en comprime. Les comprimes sont seches ou laisses secher produisant des comprimes d'une resistance adequate sans recourir a la cuisson.
Patent EP-0042553-A1 (EP)
Inventor: KAPLAN MURRAY ARTHUR
IPC: A61K31/455
Filed: 1981-06-11
Abstract: Organic acid addition salts of the antitumor agent 4'-(9- acridinylamino)methanesulfon-m-anisidide(m-AMSA) are made substantially more water-soluble by addition of nicotinamide. Solid dosage form compositions provided by the present invention permit intravenous administration of m-AMSA without the necessity of employing an undesirable non-aqueous vehicle such as dimethylacetamide.
Patent EP-0043103-A1 (EP)
Inventor: BROWN HARRY JAMES
IPC: C22C29/06
Filed: 1981-06-25
Abstract: Hard facing of iron base alloy substrates is achieved by depositing onto the substrates a hard facing composition consisting essentially of chemically combined vanadium, chromium and carbon in weight proportions of between about 80-20% vanadium carbide and 20-80% chromium carbide.
Patent EP-0075603-A1 (EP)
Inventor: NITZ MARTIN
IPC: E03F7/10
Filed: 1981-09-21
Abstract: In a container (1) mounted on a vehicle for cleaning sewer pipes and for exhausting mud, the end wall (11) of the filter water compartment (4), lying opposite the muddy water compartment (3), is part of a piston (12) which is longitudinally displaceable in the container. This end wall delimits with its rear side a storage water compartment (13) of the container, via which the supply water compartment (5) communicates with the filter water compartment. Upon longitudinal displacement of the piston, the filter water compartment also changes its position within the container, its volume remaining constant, and depending on the direction of movement of the piston, the volumes of the muddy water compartment and of the storage water compartment increase or decrease. Further measures relate to the design of the filter wall (2). <IMAGE>
Patent EP-0077410-A1 (EP)
Inventor: KNOP HANS-GEORG
IPC: H04N1/411
Filed: 1981-10-19
Abstract: This invention relates to a method for improving contrast accentuation in the case of the re-recording of originals in the sphere of electronic image processing by means of graving devices and scanners. An image signal is obtained by scanning an original opto-electronically dot-by-dot and line-by-line, and at least one surround signal is obtained by evaluating the surrounding area of the image dots. A correction signal which is superimposed on the image signal for the purpose of contrast accentuation is derived from the surround signal and the image signal. The original is thereupon re-recorded on a recording medium to an optional reproduction scale. The magnitude of contrast accentuation on the recording medium is adjusted by varying the width of overlap of the image signal and correction signal irrespective of the actual reproduction scale, In the case of enlargements in particular, troublesome border patterns on outlines are averted or at least reduced in such degree that they are no longer noticeable to the beholder.
Patent EP-0052349-A1 (EP)
Inventor: SCHILLER MICHAEL
IPC: G06K9/00
Filed: 1981-11-12
Abstract: A finger (F) pressed against a platen (32) provides a fingerprint object which is scanned by an interrogating beam of collimated light (30) in the form of a slit and that is linearly displaced across the platen. As the slit-beam scans across the back surface of the platen, the reflected light beam is modulated. The modulated beam is imaged onto a linear array of photodiodes (12) to provide a series of output signals indicative of modulation information. The outputs of the diodes are serially interrogated at each of successive scan positions to provide a set of signals containing fingerprint information. The platen has a transparent glass base (92). A layer of transparent, compressible, resilient epoxy (94) is on the back of the glass base (92). The epoxy layer (94) has a flat back surface. A thin silver reflecting layer (96) on the back surface of the epoxy provides a flat mirrored surface to reflect the light beam. A further epoxy layer (97) on top of the silver provides mechanical filtering. A lacquer layer (99) at the back protects the platen from wear. When a finger is applied to the back surface, the ridges of the finger distort the underlying layers sufficiently so that the reflected light at the ridge zones is scattered while the reflected light at the valley zones is collimated. This difference in scatter is transformed by an imaging lens (65) to a difference in intensity at the diode array (12).
Patent EP-0061529-A1 (EP)
Inventor: HOFMANN KARL
IPC: F02M61/06
Filed: 1981-11-14
Abstract: 1. Fuel injection nozzle for internal-combustion engines, having a valve needle (12) opening counter to the flow direction of the fuel, formed onto which is a sealing cone (18), interacting with a valve seat (16) on the nozzle body (10), and onto which then is formed a restricting neck (24), which in the closed position of the valve needle (12) immerses with a cylindrical section (26) into a cylindrical section (35) of the nozzle bore (20) downstream of the valve seat (16) and delimits therein, over the extent of a first partial stroke of the valve needle (12), a restricting metering gap (40) for governing the size of a preliminary fuel jet, characterised in that a further cylindrical section (32, 38) is formed on the restricting neck (24) and/or in the nozzle bore (20) downstream of the metering gap (40), which section, in the closed position of the valve needle (12), forms with an opposite wall section (38, 32) of the nozzle bore (20) or of the restricting neck (24) a protective gap (42) of restricting cross section, the length of which is smaller in the closed position of the valve needle (12) than the length of the metering gap (40) formed in this position, and which extends as the opening stroke of the valve needle (12) begins, enlarging faster than the metering gap (40), up to a cross section not even restricting the main fuel jet.
Patent EP-0053323-A1 (EP)
Inventor: KRUSCHE ALFRED
IPC: F16H61/40
Filed: 1981-11-17
Abstract: Hydrostatisches Antriebssystem mit mindestens einer mittels einer hydraulischen Einrichtung einstellbaren Pumpe, die in eine Förderleitung fördert, an die über je ein willkürlich betätigbares Schaltorgan mehrere Verbraucher anschließbar sind, wobei zu dem Zwecke, daß sich Änderungen des Druckes, die an einem Verbraucher durch Änderung von dessen Belastung entstehen, auf die anderen Verbraucher nicht auswirken, so daß jedem Verbraucher das Druckmittel mit dem für diesen Verbraucher erforderlichen Druck mit dem willkürlich gewählten Strom zufließt in jeder jeweils zu einem Verbraucher führenden Zweigleitung eine einstellbare Parallelschaltungsdrosselstelle angeordnet ist, deren Einstellorgan auf der einen Seite vom Druck in der Förderleitung 12 bzw. der Förderzweigleitung 28, 82, 104, 105 und auf der anderen Seite von einem Steuerdruck und einer Feder beaufschlagt ist und wobei dieser Steuerdruck an allen Parallelschaltungsdrosselstellen gemeinsam ist und die von diesem beaufschlagte Seite des Einstellorganes über eine Steuerdruckzweigleitung 76, 77 an eine gemeinsame Steuerdruckleitung 80, 81, 83 angeschlossen ist, wobei in jeder Steuerdruckzweigleitung 76,78 ein zur gemeinsamen Steuerdruckleitung 80, 81, 83 hin öffnendes Rückschlagventil 79, 77 angeordnet ist.
Patent EP-0052891-A1 (EP)
Inventor: NICOLAS LIKA
IPC: E05B17/14
Filed: 1981-11-25
Abstract: Means for the prevention of breaking open locks by detection of the attempt by an electric switch of which the blade-like control conditions the access to the lock. The device comprises: the body of the switch (1) joined side by side to the lock (4); the blade-like control (2) masking the lock (4); the contacts (a/b) actuated by the touch needle (3). The invention relates to the protection of locks and particularly motor vehicle locks.
Patent EP-0032459-A1 (EP)
Inventor: HASUI HIROSHI
IPC: C08K5/134
Filed: 1981-01-14
Abstract: Tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl) propionyl oxymethyl]methane having a novel crystal structure such that its X-ray diffraction pattern obtained by X-ray analysis using Cu-K alpha  rays shows a sharp peak at a diffraction angle 20 = 10.90 DEG . This can be prepared by (a) transesterifying methyl or ethyl 3-(3,5-di-t-butyl- 4-hydroxyphenyl)propionate with pentaerythritol in the presence of a compound of the formula …<CHEM>… wherein R1 and R2 each represent an alkyl group having 1 to 6 carbon atoms,… (b) treating the resulting tetrakis [3,5-di-t-butyl-4-hydroxyphenyl)propionyloxymethyl] methane with a lower alkanol capable of forming a molecular adduct compound therewith to convert it into the corresponding molecular adduct compound, and (c) recrystallizing the molecular adduct compound from ethanol as a solvent. …<??>The compound of novel crystal structure has improved handling properties and finds use as an antioxidant for polyolefins.
Patent EP-0038722-A1 (EP)
Inventor: GABEL JONATHAN
IPC: H02P7/06
Filed: 1981-04-22
Abstract: A system is disclosed for controlling the conversion of electrical energy to mechanical energy as well as for controlling the conversion of mechanical energy to electrical energy. In a separately excited electromechanical energy conversion device, power losses are minimised by simultaneously controlling the currents flowing in the different windings of the device such that these currents are related by a predetermined optimising function. This system is applicable to a wide variety of electric motors and generators.
Patent EP-0043259-A1 (EP)
Inventor: FRICKER RICHARD
IPC: C12M1/00
Filed: 1981-06-26
Abstract: A method for fermentation in which carbohydrate solution is discontinuously fed to a fermentation zone containing yeast whereby the carbohydrate is fermented to ethanol, a proportion of the fermenting liquid passing to a pressurised settling tank, yeast depleted liquid being withdrawn from the upper part of the settling tank and yeast enriched liquid being withdrawn from the lower part of said tank and returned to the fermentation zone, a proportion of yeast being withdrawn without being returned to the fermentation zone, said proportion being such that the concentration of yeast in the fermentation zone is substantially constant, and the pressure within the settling tank is sufficient to prevent the formation of gaseous carbon dioxide. The method enables rapid continuous fermentation to take place using high concentrations of yeast. Apparatus for operating the method is described.
Patent EP-0044209-A1 (EP)
Inventor: FARNHAM WILLIAM BROWN
IPC: C07D521/00
Filed: 1981-07-10
Abstract: Sulfonamide derivatives of the formula
     wherein
     R is H, halogen, nitro, CF 3 , alkyl or alkoxy;   R, is H, Cl or alkyl;   R 2  is H or CH 3 : L is Cl, Br, CN, OH or a variety of organic groups;   R 8  is H. CH 3  or OCH 3 ;   W is O or S;   A is
         X is H, Cl, Br or various organic groups:   Y is CH 3  or OCH 3 :   Z is N or optionally substituted CH;   Y' is H. CH 3 , OCH 3  or OCH 2 CH 3 ; and   Q is 0 or CH 2 ;     
and their salts, exhibit herbicidal and plant growth regulant activities.. They may be formulated for use in conventional manner.
     The compound may be made e.g. by reacting a novel sulfonyl isocyanate of general formula
     with the appropriate 2-aminoheterocycle of formula A-NHR 8,  or alternatively by displacing one or both chlorine atoms in the heterocyclic moiety of a novel sulfonylurea of general formula
     by the appropriate alkoxy groups. Further methods of preparation are also disclosed.
Patent EP-0055936-A1 (EP)
Inventor: COLEMAN JAMES PATRICK
IPC: C07C57/10
Filed: 1981-12-30
Abstract: Butadiene and acetic acid are reacted with metal ion oxidant to prepare acetoxyhexenoic acids which are then converted to sorbic acid.
Patent EP-0054449-A1 (EP)
Inventor: SAIGNE GERARD
IPC: E05F11/44
Filed: 1981-11-10
Abstract: 1. A window-raiser comprising at least one inclined arm (26, 27) which is pivotally mounted at an intermediate point of its length on a pivot pin (29) carried by a slide (30) which is longitudinally guided in a U- or C-section member forming a substantially vertical slideway (31) and carries a rack (38) engaged with a driving pinion through a lateral opening in the U- or C-section member, the two ends of the arm being guided in the guideways (17, 18, 24) perpendicular to the axis of the slideway (31) which are respectively connected to the window base and fixed, the fixed guideway (54) defining a central line to each side of which line the arm is movable, characterized in that the inner wall of the vertical slideway section-member (31) has a pierced or cut-away aperture in the region of which the material is deformed inwardly of said slideway so as to form the inner wall (41) of a cavity (39), which is laterally open on each side of said wall, and define an opening (40) through which a pinion which is part of a driving module assembled with the slideway is mounted inside the section-member in the cavity (39) and put into engagement with the rack (38).