baber/WOPTO huggingface dataset:
Patent EP-4318080-A2 (EP)
IPC: G02B27/01
Filed: 2017-07-27
Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.
Patent EP-0025899-A2 (EP)
Inventor: EGEY THOMAS DR
IPC: H04L17/00
Filed: 1980-08-29
Abstract: Teleprinter input units such as a receiver EM, a keyboard TA, a punched tape reader LE and a message store NS1 are connected via a single data bus DB to output units such as a transmitter SE, a printer DR, a tape punch LO and a message store NS2. Connection paths between the input units and output units are provided via respective buffer stores P1 to P3 which are selectively operated in an appropriate sequence to enable simultaneous data transfer between more than one input unit and more than one output unit via more than one connection path. The buffer stores may form parts of a unitary store DS which may also include the message stores and a working store AS. Data transfer is controlled by means of a micro-computer MR. <IMAGE>
Patent EP-0015794-A2 (EP)
Inventor: RICHARD CHRISTIAN
IPC: C01B33/24
Filed: 1980-02-08
Abstract: La présente invention a trait à un nuoveau produit constitué par un silicate métallique de rapport molaire silice/oxyde métallique au moins égal à 2, avantageusement compris entre 3 et 5. Ce produit se caractérise par le fait qu'il présente une perte au feu sensiblement nulle entre 500 et 900°C et qu'il est amorphe et isotrope. Ce silicate peut être en particulier un silicate de plomb qui sert de produit de base à une nouvelle composition vitrifiable. La présente invention couvre également un procédé pour l'obtention de sidlicate selon l'invention. Ce procédé se caractérise par le fait que l'on fait agir une solution d'un silicate alcalin soluble et une solution d'un sel soluble de métal dont on veut préparer le silicate de manière à substituer au moins une partie de l'oxyde alcalin dans le silicate de départ par l'oxyde du métal. La présente invention trouve notamment son application en verrerie.
Patent EP-0039162-A2 (EP)
Inventor: LARSON WAYNE K
IPC: C08G18/08
Filed: 1981-04-10
Abstract: An organic polyurethane resin capable of water and aqueous organic solvent redispersiblity comprising the reaction product of at least one hydrophilic diol, at least one hydrophobic diol, at least one organic diisocyane and, optionally, at least one chain extender.
Patent EP-0046330-A2 (EP)
Inventor: BEACH DAVID L
IPC: B01J31/00
Filed: 1981-06-15
Abstract: A process is provided for preparing nickel ylides wich are themselves novel compounds defined by the following Formula I:
     wherein R,, R 2 , R 3 , R 4 , R 5 , R 6 , R 7  and R 8  are either alike or different members selected from the group consisting of hydrogen, alkyl radicals having from about one to about 24 carbon atoms, preferably from about one to about 10 carbon atoms; aryl radicals having from about six to about 20 carbon atoms, preferably from about six to about 10 carbon atoms; alkenyl radicals having from about two to about 30 carbon atoms, preferably from about two to about 20 carbon atoms; cycloalkyl radicals having from about three to about 40 carbon atoms, preferably from about three to about 30 carbon atoms; aralkyl and alkaryl radicals having from about six to about 40 carbon atoms, preferably from about six to about 30 carbon atoms; a halogen radical selected from the group consisting of fluorine, chlorine, bromine and iodine, preferably chlorine; a hydroxyl group; an alkoxy or aryloxy group; a hydrocarbyl group, such as defined above, carrying halogen, hydroxyl or alkoxy or aryloxy; and a sulfonato group (-SO 3   - ) or an alkyl, aryl, alkenyl, cycloalkyl, aralkyl or alkaryl group carrying a sulfonato group; provided that at least one sulfonato group is located in R 4 , R s  and R. and at least one of R 4 , R s  and R 6  is aryl; M is sulfur or oxygen, preferably oxygen; E is phosphorus, arsenic, antimony or nitrogen, preferably phosphorus; and F is phosphorus, arsenic or antimony, preferably phosphorus. The process comprises sulfonating a ligand defined by the following formula:
     and then reacting the resulting sulfonated ligand with (1) a zero valent nickel compound and (2) a ylide defined by the following formula:
     wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , E, F and M are as defined above, provided that at least one of R 4 , R 5  and R 6  is an aryl group.
Patent EP-0061557-A2 (EP)
Inventor: PALMANNSHOFER KARL
IPC: B65G43/00
Filed: 1981-10-22
Abstract: 1. A plant for conveying sheet metal coils comprising a coil car, which is movable by means of a drive along the path of travel, characterized in that the drive for the coil car consists of a rack (12), which extends along the path of travel and is in mesh with a drivable gear (14) of the coil car (1), and that the rack (12) consists of an incremental scale for a length-measuring device, which comprises a unit (17) for scanning the incremental scale and at least one counter for counting the output pulses of the scanning unit (17).
Patent EP-0061132-A2 (EP)
Inventor: NAGATA YUKIO C O NISSAN MOTOR
IPC: B32B27/08
Filed: 1982-03-16
Abstract: A material for reinforcing a panel or plate (6) includes a first resin layer (4) having a high tensile modulus of elasticity after hardening; a second resin layer (5) having a low tensile modulus of elasticity after hardening; an expandable member (3) disposed between the second resin layer side and the panel (6) to be reinforced. The expandable member (3) is narrower than the reinforcing resin sheet (2). The first and second resin layers (4, 5) are combined in a unhardened or semi-hardened state to form a reinforcing resin sheet (2). The expandable member (3) expands into a bead-like projection (2b) when heated and then hardens. The edges (2a) of the reinforcing resin sheet (2) extend beyond the edges of the bead-forming member or expandable member (3) in such a manner that the second resin layer (5) of the reinforcing resin sheet (2) can be attached to the panel or plate (6).
Patent EP-0066379-A2 (EP)
Inventor: MILLER RICHARD L
IPC: A61K31/715
Filed: 1982-05-07
Abstract: A composition for combatting herpes simplex viruses types I and II, comprising a dextran sulfate sodium salt having a weight average molecular weight from about 4,100 to 25,000 and containing at least about 0.2 equivalent of SO 3 Na per glucopyranosyl unit therein.
Patent EP-0066964-A2 (EP)
Inventor: SCHMID HERMANN
IPC: G08C23/04
Filed: 1982-05-12
Abstract: An optical fiber position sensor includes an optical fiber cable (40) wound in the shape of a single layer, tightly wound coil, the coil being secured to a first member (43). A second member (21), which is linearly movable with respect to the first member, has fixed thereto an LED (20) which is aimed at the coil such that radiation being emitted from the LED is injected approximately tangentially into the coil. Radiation being transmitted through the coil is attenuated as a function of the distance that it travels therethrough and as a result, radiation exiting the coil through the terminations is representative of the location of the movable member (21) with respect to the fixed member (43).
Patent EP-0072255-A2 (EP)
Inventor: CORNISH DOUGLAS CECIL
IPC: A61B5/103
Filed: 1982-08-11
Abstract: An aesthesiometer for determining the cutaneous sensitivity of a person comprises a vibrator 12 for vibrating a member 14 at a known frequency and amplitude. The patient places his finger on the member 14 and the amplitude of the vibration is varied from a minimum value until the patient just feels the vibration whereupon the amplitude is noted using an accelerometer 30. The test is carried out at a number of known frequencies noting the amplitude at which the patient just feels the vibration. The amplitude may be varied to increase and decrease the amplitude cyclically and in this case the threshold levels at which the patient just feels, or loses the sense of feeling, the vibrations is noted.
Patent EP-0079746-A2 (EP)
Inventor: MACGILP NEIL ARCHIBALD
IPC: C11D3/43
Filed: 1982-11-09
Abstract: Liquid textile treatment compositions in the form of isotropic solutions comprising water-insoluble di-C<sub>16</sub>-C<sub>24</sub> optionally hydroxy-substituted alkyl, alkaryl or alkenyl cationic fabric softener, at least about 70% of the fabric softener consisting of one or more components together having a melting completion temperature of less than about 20°C, a water-insoluble nonionic extender, especially C<sub>10</sub>-C<sub>40</sub> hydrocarbons or esters of mono- or polyhydric alcohols with C<sub>8</sub>-C<sub>24</sub> fatty acids and a water-miscible organic solvent. The concentrates have improved formulation stability and dispersibility combined with excellent fabric softening characteristics.
Patent EP-0083215-A2 (EP)
Inventor: SEIICHI HATTORI
IPC: G06F12/16
Filed: 1982-12-23
Abstract: When a memory cassette 3 having semiconductor memory is attached to or detached from a connector 2" mounted on an adapter 2, the supply of power to the memory cassette 3 through the adapter 2 is switched on or off and an interface signal between the memory cassette 3 and the adapter 2 is rendered active or inactive in response to connection or disconnection between the memory cassette 3 and the adapter 2. The stored content of the semiconductor memory can be protected against destruction which would otherwise result from application of a power supply voltage upon connection or disconnection between the memory cassette 3 and the adapter 2.
Patent EP-0063995-A2 (EP)
Inventor: CASTERA ANDRE
IPC: F42B12/32
Filed: 1982-04-15
Abstract: 1. An explosive device incorporating an explosive charge (24) inside a thin leakproof deformable sheath (14) and shrapnel (16) distributed in a single thickness, all around the thin sheath (14) and enclosed between this thin sheath and a relatively thick casing (10), the thin sheath (14) being deformed so as to be applied against the shrapnel (16) and to permit a forward movement of the explosive between two consecutive shrapnel members, characterised in that the shrapnel (16) is distributed in noncontiguous annular layers and in that, between each group of two consecutive noncontiguous annular layers, the relatively thin sheath (14) has, facing and close to the relatively thick casing (10), but at a distance from the latter, an annular projection corresponding to a projection of the explosive charge (24) towards the latter.
Patent EP-0094535-A2 (EP)
Inventor: WADA KENICHI
IPC: G06F9/38
Filed: 1983-04-29
Abstract: data processing system for executing an instruction in a plurality of stages (D, A, L, E, P) in a pipeline mode comprises a main operation unit (4030) for operating all instructions to be executed by the data processing unit, a first group of general purpose registers (60, 8000-8015) for storing the operation results of the main operation unit, a pre-operation unit (981) for operating a portion of instructions which frequently appear and which can be operated with a small number of circuit components, a second group of general purpose registers (4081) for storing the operation results of the pre-operation unit, and control means for storing the operation result of the pre-operation unit into the second general purpose register at least one operation stage earlier than the storing of the operation result of the main operation unit into the first general purpose register and storing the contents of the second general purpose registers into the first general purpose registers when an interruption occurs.
Patent EP-0095096-A2 (EP)
Inventor: RAJADHYAKSHA VITHAL J
IPC: C07D223/10
Filed: 1983-05-11
Abstract: In a method of synthesis of 1-substituted azacycloalkan-2-ones with primary alkyl halides and aralkyl halides as alkylating agents, the improvement comprising carrying out the N-alkylation in the presence of a phase transfer catalyst having the structural formulawhere X is a suitable anion; and R<sup>1</sup>, R<sup>2</sup>, R<sup>3</sup> and R<sup>4</sup> are each alkyl or aralkyl groups having 1 - 18 carbon atoms, or R<sup>2</sup>, R<sup>3</sup> and R<sup>4</sup> can form part of a heterocyclic ring, with the proviso that the combined total of carbon atoms is between 16 and 40.
Patent EP-0110223-A2 (EP)
Inventor: SULING CARLHANS DR
IPC: D01F1/07
Filed: 1983-11-14
Abstract: 1. Filler-containing acrylic fibres or acrylonitrile polymers containing at least 50 % by weight of acrylonitrile which contain as filler a water-insoluble metal oxide, hydroxide carbonate, silicate or suphate having an average particle diameter of from 1 to 1000 nm in a quantity of from 15 to 50 % by weight, based on total solids, characterized in that they are dry-spun.
Patent EP-0114373-A2 (EP)
Inventor: FISHER JULIE M
IPC: B29D5/02
Filed: 1983-12-22
Abstract: An improved integral thermoplastic closure for a container formed of a film or sheet, and method of manufacture. The closure includes a pair of interlocking fastener elements with ribs on either side of at least one of the fastener elements to provide a stiffening effect to assist a user in interlocking the fastener elements. By controlling the thickness of a base portion of the fastener element so that it has a thickness greater than the film, the spacing of the ribs adjacent to a profile can be controlled to provide the desired stiffening and wide-track feel in the fastener element.
Patent EP-0084929-A2 (EP)
Inventor: NAKAGOME HIDEKI
IPC: F25D9/00
Filed: 1983-01-06
Abstract: A magnetic refrigerator comprises a working material (23) radiating heat when a magnetic field is applied thereto and absorbing heat when the magnetic field is removed therefrom, and magnetic coil (23) which is movable for selectively applying or removing the magnetic field to or from the working material. Directional heat pipes are disposed between the working material and an object (28) of cooling, whereby heat from the object of cooling is transmitted to the working material when the working material absorbs the heat, and whereby heat from the working material is prevented from being transmitted to the object of cooling when the working material radiates the heat.
Patent EP-0106511-A2 (EP)
Inventor: PETRIC PAUL FRANCIS
IPC: H01J37/20
Filed: 1983-09-08
Abstract: Apparatus for controlling the gap (42) between localized vacuum processing envelope apparatus and a workpiece (16) as the workpiece, typically a semiconductor wafer, is moved laterally with respect to the envelope apparatus. The envelope apparatus includes an envelope (12) which defines an internal vacuum processing zone and a generally planar tip (42) spaced from the workpiece during processing by the gap. The gap control apparatus includes a gap sensor (70) for measuring the gap, a control circuit (60) for comparing the measured gap with a required gap and generating an error signal, and an actuating means (26-30) for varying the gap in response to the error signal. The gap can be sensed by sensing the pressure level in the vacuum processing apparatus. The actuating means can include a plurality of piezoelectric actuators which can vary both the gap and the angle of the workpiece with respect to the tip of the vacuum processing apparatus. The disclosed apparatus is particularly useful in connection with particle beam systems such as electron beam lithography systems. In another embodiment, the gap is controlled by an air gearing between the envelope apparatus and the workpiece.
Patent EP-0104067-A2 (EP)
Inventor: STENNER JOHN W
IPC: B42D15/08
Filed: 1983-09-16
Abstract: Direct mail articles comprise an outer envelope containing a pre-formed reply envelope, detachable reply devices, such as coupons and a reply card, and optionally one or more separate enclosure sheets. The reply envelope is provided with a plurality of apertured pockets suitable for receiving at least one of the reply devices, where the apertures permit visual or machine sorting of the sealed envelopes, based on the presence or absence of a particular reply device in a particular pocket. Methods of preparing personalized, finished articles from one or more integral sheets or webs are described.
Patent EP-0123227-A2 (EP)
Inventor: ARNOLD DON C
IPC: F16K11/078
Filed: 1984-04-13
Abstract: A single lever faucet assembly having a faucet control lever which is reversibly mountable laterally on either side of the faucet spout without having to switch positioning of the hot end cold water supply lines thereto. The faucet assembly includes a valve cartridge which may be easily disconnected from the faucet control lever and removed from the faucet base for replacement. The valve cartridge is arranged and disposed to provide a straight through flow path from the hot and cold water supply lines to the faucet spout which is free of any obstructions, thereby maximizing outlet flow rates. The faucet assembly further includes a means for independently controlling discharge temperature and flow rate by separate-patterned movement of the faucet control lever so as to provide uniform temperature regulation at any flow rate.
Patent EP-0127065-A2 (EP)
Inventor: SIMONSEN KNUD
IPC: B02C18/30
Filed: 1984-05-15
Abstract: In a machine for the fine comminuting and/or emulsifying of e.g. forcemeat with a conveyor worm (2) and a cutting device (6) comprising at least one cutter or knife set and at least one perforated disc, the diameters of the exit section (11) of the conveyor worm (2) and the surrounding section (9) of the housing of the cutting device (6) increase in the direction of conveying, and the machine is adapted to be driven by a motor (13) with at least one relatively high speed of rotation. 
<??>When operating with a high rotational speed, this arrangement results in that the exit end of the conveyor worm (2) together with the surrounding section (9) of the housing of the cutting device (6) act as a centrifugal pump with axial entry and exit, so that the pressure, with which the material is fed to the cutting means, is increased, and the throughput capacity of the machine is also increased due to the higher pressure produced. 
<??>Sealing problems due to the increased pressure are avoided by placing the seal (17) for the drive shaft (3) of the conveyor worm (2) in the inlet hopper (1) on the side opposite the cutting device (6), where the pressure is relatively low due to the worm carrying the material away. Thus, a simple lip seal or the like may be used.
Patent EP-0129210-A2 (EP)
Inventor: MULLER GUNTER
IPC: B22C15/00
Filed: 1984-06-14
Abstract: Eine Vorrichtung zum Verdichten von Gießerei-Formstoff mittels Druckgas besteht aus einem einen Vordruckraum bildenden Druckbehälter (5) für das Druckgas, einem darunter angeordneten, aus Formkasten (3) und Füllrahmen (4) gebildeten Formraum und einer den Formkasten unten abschließenden Modellplatte (1) mit Modell (2) auf das der Formstoff vor der Verdichtung lose aufgeschüttet wird, sowie einem zwischen dem Druckbehälter und dem Formraum angeordneten Ventil, dessen verschlußorgan (11) innerhalb des Druckbehälters geführt und seine Öffnungsbewegung unter Wirkung des Drucks im Druckbehälter zumindest weitgehend in den Formraum hineingerichtet ist. Das Verschlußorgan kann dabei als starre Ventilplatte (11) mit einer Vielzahl von Schlitzen (12) ausgebildet sein, die mit nicht deckungsgleichen Schlitzen (8) in einer den Ventils itz bildenden ortsfesten Platte (7) zusammenwirken, oder als flexible, dünne Ventilplatte (30), die randseitig eingespannt ist und nach Lösen der randseitigen Einspannung (32) unter Wirkung des Druckgases bei Freigabe der Öffnung (29) in den Formraum hineingeklappt wird.
Patent EP-0133669-A2 (EP)
Title: Process for the preparation of trioxan from commercial aqueous formaldehyde solutions
Inventor: SCHMIDT RUDOLF DR
IPC: C07D323/06
Filed: 1984-07-26
Abstract: Trioxane is prepared from commercial aqueous formaldehyde solutions in the presence of acidic catalysts, the formaldehyde solutions (1) being passed into a distillation column (2) operated above atmospheric pressure, water (3) being removed at the bottom of the distillation column (2), the head product (4) enriched in formaldehyde being let down in a reaction zone (5) operating at lower pressure than the distillation column (2), the reaction products (6) being passed into the second distillation column (7) operating at equal or lower pressure than the reaction zone (5), a mixture enriched in trioxane being obtained as the head product (8) of the second distillation column (7), and as the bottom product (9) of the second distillation column (7) a solution (10) enriched in formaldehyde being passed back as return through the reaction zone (5) into the first distillation column (2) operating under pressure. <IMAGE>
Patent EP-0147547-A2 (EP)
Inventor: MURRAY DANIEL J
IPC: C07C261/02
Filed: 1984-10-11
Abstract: A process for the preparation of an aromatic cyanate which comprises (a) preparing in situ a cyanogen chloride by contacting a solution of chlorine in a chlorinated hydrocarbon with an aqueous solution of an alkali metal cyanide at a temperature of 0°C or below under conditions such that a cyanogen chloride is prepared; (b) physically separating the chlorinated hydrocarbon in which the cyanogen chloride is dissolved from the aqueous layer in which an alkali metal chloride salt is dissolved; and (c) contacting the cyanogen chloride dissolved in the chlorinated hydrocarbon with a hydroxy-substituted aromatic compound dissolved in a chlorinated hydrocarbon, a secondary alcohol or a tertiary alcohol, in the presence of a tertiary amine at a temperature of about 0°C or less under conditions such that a polyaromatic cyanate is prepared.
Patent EP-0146045-A2 (EP)
Inventor: HOWELL EDWARD KEITH
IPC: H04L29/08
Filed: 1984-11-29
Abstract: A transceiver circuit provides a transparent interface between one or more digital baseband signal generators, such as a microprocessor, and a broadband modulated carrier data bus, such as a power line communication system. A plurality of microprocessors can communicate with a single transceiver over a single conductor pair and a plurality of transceivers can communicate over a separate pair of conductors without the appearance of conflict.