baber/WOPTO huggingface dataset:
Patent EP-0287065-A2 (EP)
Inventor: NUMAI TAKAHIRO
IPC: H01S5/00
Filed: 1988-04-13
Abstract: An optical filter device comprises an active region (100) having an amplifying function, another active region (300) having a noise absorbing function, and a distributed feedback region (200) having a wavelength selecting function. In the optical filter device, a phase shift degree is varied by injecting electric current into the distributed feedback region so that a predetermined wavelength of an optical signal can be selected from wavelength multiplexed signals of as much as sixty or seventy channels.
Patent EP-0306662-A2 (EP)
Inventor: GREUB HANS J
IPC: H03K3/0231
Filed: 1988-07-12
Abstract: A clock signal is transmitted to nodes (13) of each of several interconnected circuits (16) through a separate adjustable delay circuit (18), the time delay of each delay circuit being adjusted so that the clock signal arrives at each node (13) at the same time, thereby synchronizing operation of the separate integrated circuits one to another. Each delay circuit (18) comprises a set of signal delay elements which can be selectively switched into the clock signal path so that the clock signal delay may be adjusted by adjusting the number of signal delay elements in the clock signal path. Each signal delay element itself has a unit delay adjustable in proportion to an applied control voltage generated by a delay element monitor (30). The delay element monitor (30) measures the unit delay in relation to the period of a stable reference clock and adjusts the delay of each delay element as necessary to ensure that the unit delay remains constant.
Patent EP-0301409-A2 (EP)
Title: Thermoplastisch verarbeitbare Polyarylenether mit 9,9-Bis-(4'-hydroxyphenyl)fluoren
Inventor: BESECKE SIGMUND DR
IPC: C08G65/40
Filed: 1988-07-21
Abstract: Hochtemperaturbeständige, thermoplastisch verarbeitbare Polyarylenether mit wiederkehrenden Struktureinheiten der allgemeinen Formel (1)
      worin A: 4,4′-bzw. 4,4˝-Benzophenon-Einheiten der Formel
      B: 9,9-Bis(4′-phenyl)fluoren-Einheiten der Formel
      C: 2,2-Bis(4-phenyl)propan-Einheiten der Formel
      sind, die über Sauerstoffatome etherartig miteinander verbunden sind, wobei die Zusammensetzung der Polyarylenether durch m und n, für die das Molverhältnis m : n = 30 : 70 bis 90 : 10 gilt, gegeben ist und die Folge der B- oder C-enthaltenden Teilstücke, statistisch sein kann.
Patent EP-0303900-A2 (EP)
Inventor: BURNS GARY THOMAS
IPC: C04B35/571
Filed: 1988-08-04
Abstract: Halogenated polycarbosilanes are prepared by reacting a polycarbosilane containing at least 0.1 weight percent Si-H groups with a halogenating reagent selected from the group consisting of chlorine, bromine, phosphorous pentachloride, phosphorous pentabromide, antimony pentachloride, N-chlorosuccinimide, N-bromosuccinimide, sulfonyl chloride, and mixtures of CH e X f  and a free radical initiator where e is 0 or 1, f is 3 or 4, the sum (e + f) is 4, and X is chlorine or bromine. The halogenated polycarbo­silanes can be further treated to produce other derivatized polycarbosilanes. The halogenated and derivatized polycarbo­silanes can be converted to silicon carbide containing ceramic materials by pyrolysis at elevated temperatures under an inert atmosphere.
Patent EP-0315848-A2 (EP)
Inventor: STREIT WERNER DR
IPC: D06M13/244
Filed: 1988-10-31
Abstract: Process for the pretreatment of textile materials in aqueous media by alkaline scouring and/or bleaching using as auxiliary a compound of the formula I 
<IMAGE>
 where R is C6-C10-alkyl, X is H, Na, K or NR<1>R<2>R<3>R<4>, and R<1>, R<2>, R<3> and R<4> are each H, C1-C4-alkyl or -CH2-CH2-OH.
Patent EP-0283086-A2 (EP)
Inventor: NANTIN HANS
IPC: B65H19/10
Filed: 1988-03-09
Abstract: A splicing device for packaging webs comprises a magazine capable of housing a roll of web in any production position into which a packaging web is to be fed and two stand-by positions located on the left and right sides respectively of said production position. A splicing unit for joining the end of the packaging web to be processed and the top end of the roll of web moved out from any stand-by position to the production position with each other is provided on the production position in the middle between the two stand-by positions. 
     The splicing unit comproses a cutting device capable of cutting the packaging web to be processed in its cross direction, a splicing plate capable of holding the part near the top end of the roll of web being moved out from any stand-by position in advance so that the top end of said web may be joined with the end of the web to be processed, and a pressure element which presses the part joined between the end of the packaging web to be processed and the top end of said roll of web.
Patent EP-0284307-A2 (EP)
Inventor: FOLKINS JEFFREY J
IPC: G03G15/09
Filed: 1988-03-18
Abstract: An electrophotographic printing apparatus comprising a photoreceptor (12) and an electrically biassed developer roll (56). Means (66) are provided for sensing the current biassing the developer roll (56) and for generating a proportional control signal for regulating a processing station. Preferably it is the discharge of toner which is regulated. Before the control signal is applied, it is modified by a further signal sampled at selected intervals. The further signal may be generated by either (a) a densitometer (24) measuring the mass to area ratio of the developer deposited on a test area of the photoreceptor (12); or (b) a voltage probe adjacent the photoreceptor. 
     In an alternative embodiment the main control signal is generated by the voltage probe and is modified at selected intervals by the signal from the current sensing means (66).
Patent EP-0325838-A2 (EP)
Title: Optical data storage drum, drive, and method
Inventor: STRAND DAVID
IPC: G11B7/00
Filed: 1988-11-03
Abstract: Disclosed is a high storage density, rapid access phase change optical data storage system comprising a data storage drum (11). The optical data storage medium is on the circumferential surface (31) of the drum (11). The system further includes constant speed means (13) for rotating the data storage drum (11) about its axis of rotation and a read-write head in proximity to circumferential surface (31) of the drum (11) and adapted to both project an incident optical beam onto the surface of the phase change data storage medium and to detect and reflect an optical beam from the surface of the change optical data storage medium.
Patent EP-0327798-A2 (EP)
Inventor: SCALZI CASPER ANTHONY
IPC: G06F12/14
Filed: 1989-01-05
Abstract: Within a data processing system, a control method and mechanism for supporting a data space without common segments in addition to traditional address spaces containing common segments. The invention includes logic for eliminating duplication of lookaside table entries for virtual addresses within shared segments, but not for identical virtual addresses within data address spaces; it also provides for overriding low address protection for store operations into data spaces. Thus, it permits the entire virtual addressing range to be available to programs wishing to use such data spaces for data isolation and data sharing.
Patent EP-0332875-A2 (EP)
Title: More creep resistant turbine rotor, and procedures for repair welding of low alloy ferrous turbine components
Inventor: CLARK ROBERT EDWARD
IPC: B23K9/04
Filed: 1989-02-16
Abstract: A method for repairing worn surfaces of Cr-Mo-V steam turbine components includes specified alloy compositions and welding procedures that minimize weld stresses and cracking. These alloys exhibit improved creep and fatigue properties and are preferably deposited using a gas tungsten arc welding procedure. Bead sequencing, cooling side plates and the use of run-off tabs are also disclosed for minimizing welding defects in turbine rotors and discs.
Patent EP-0334031-A2 (EP)
Inventor: ERHARD NORBERT DIPL-ING
IPC: F15B9/17
Filed: 1989-02-21
Abstract: The invention relates to a control device for a two-stage valve having a first continuous-action valve as prestage valve (2) and a second continuous-action valve as main stage valve (3). Both valves are position-controlled. A position controller is constructed as state controller (25) which is supplied with a position signal (UxV) and a speed signal (UxV) for the prestage valve (2) and additionally with a position signal (UxH) for the main stage valve (3) as state variables. At least some of these signals (UxH, UxV, and UxV) and a connected nominal-value signal (Usoll) are weighted via weighting circuits (Kw, K1, K2, K3) and supplied to a logic circuit (27). The output of the logic circuit (27) represents the output of the state controller (25) and is connected to the nominal-value input of the prestage position controller (34). This provides an improvement in the steady-state and dynamic characteristic of the precontrolled constant- action valve. <IMAGE>
Patent EP-0332926-A2 (EP)
Inventor: BELLUZZI DANTE
IPC: F27D99/00
Filed: 1989-02-28
Abstract: Continuous furnace for sintering pressed metal powders, constituted by a furnace traversed by a plurality of transverse, parallel, adjacent and continuously rotating rollers (9) made of refractory material which operate in an inert-gas atmosphere, and comprising gas sealing means (11) and burners arranged at the inlet and at the outlet of the furnace and adapted to eliminate by combustion any traces of oxidating gases.
Patent EP-0332984-A2 (EP)
Inventor: GIRMSCHEID PAUL
IPC: C04B35/18
Filed: 1989-03-07
Abstract: To produce shaped articles of cordierite, a batch which gives the cordierite composition and contains clay and/or kaolin as well as soapstone and/or talc, and also water and an organic auxiliary, is subjected to shear-mixing. For this purpose, the batch is introduced between two bodies at a small distance, which move relative to one another, and simultaneously exposes the batch to a shear stress. Preferably, the batch is filled into the gap formed by two horizontally arranged cylindrical shear rollers which almost touch one another and which rotate at different speed or in opposite directions. The batch is then formed to give a shaped article, and the shaped article is fired until the cordierite phase is produced. …<??>Cordierite grains with very small coefficients of thermal expansion (for example at most 1.1 x 10<-><6>/ DEG C in all three directions of space) can be obtained.
Patent EP-0337173-A2 (EP)
Title: Device for detecting alcoholic content
Inventor: SUZUKI HIROYOSHI
IPC: G01N21/43
Filed: 1989-03-23
Abstract: The present invention is directed to a device for detecting alcoholic content in a fuel by finding its refractive indec, in which a refractive interface (64a,64b) for the fuel is formed on the half way of a light transmission body (51). A light emitting element (54) is provided at one end of the light transmission body (51), from which incident light is introduced into said refractive interface; and a single dimensional light position sensing detector (65) is provided at the other end of the light transmitting body, into which the light refracted at the refractive interface (64a,64b) is introduced.
Patent EP-0344429-A2 (EP)
Inventor: FISCHER ARTUR PROF DR H C
IPC: F16B13/02
Filed: 1989-04-06
Abstract: Plastic expansion dowels are used in connection with attachment screws, the expansion dowel being screwed into a hole drilled in the masonry, being expanded by insertion of the attachment screw and being anchored therewith. 
<??>In order to obtain an increase in the retention forces in the region of the expanded end of the expansion dowel, the external notches provided there are designed with a reduced notch depth. 
<IMAGE>
Patent EP-0342409-A2 (EP)
Inventor: MOTZER HELMUT
IPC: F15B20/00
Filed: 1989-04-27
Abstract: The invention relates to a hydraulic safety valve which is driven by two electromagnetically operable servo valves. The valve has two valve bodies, which can move in opposite directions to one another, with control pistons by means of which the connections between a pump connection, two working connections and two tank connections are controlled. In the event of incorrect switching, the valve bodies move into a hydraulically locked limit position. One of the two servo valves is designed as a proportional pressure difference valve and the control pistons associated with it are provided with fine-control grooves, so that the valve is controlled proportionally and hence the build-up of pressure, the speed and the movement direction of a load connected downstream of the valve can be controlled. 
<IMAGE>
Patent EP-0342707-A2 (EP)
Inventor: FORER JOSEF DIPL-ING
IPC: H04W84/16
Filed: 1989-05-19
Abstract: A cordless telephone consisting of fixed and mobile section (FT, MT) is expanded into a private branch exchange. Each mobile section (MT) exchanges a device-specific identification with the fixed section (FT) and can therefore be identified by a switching control arrangement in the fixed section (FT). The fixed section (FT) also contains a switching network which connects the mobile sections (MT) to one another, to exchange lines (AL) and to other private branch exchanges. The signal processing sections of each mobile section (MT) extend in parallel in the fixed section (FT) are are summed at the transmitting end in the radio-frequency band and are separated at the receiving end. The connection to several mutually independent mobile sections (MT) is therefore maintained from one fixed section (FT). <IMAGE>
Patent EP-0352790-A2 (EP)
Inventor: KOYAMA MIKIO TOSHIBASHINKOYASU
IPC: H03F1/32
Filed: 1989-07-27
Abstract: In an integrator circuit (100) having a wide linearity range, there are provided: a first emitter-coupled transistor pair (10) having two bipolar transistors (Q₃: Q₄), emitter areas of the transistors (Q₃: Q₄) being substantially equal to each other; a second emitter-coupled transistor pair (20) having two bipolar transistors (Q₅: Q₆), emitter areas of said transistors (Q₅: Q₆) being substantially equal to each other; first and second input terminals (8: 9) for receiving an input voltage (V IN ) respectively; a first output terminal (OUT1) to which a first collector (1) of the first emitter-coupled pair (10) and also a first collector (2) of the second emitter-coupled transistor pair (20) are commonly connected; a second output terminal (OUT2) to which a second collector (3) of the first emitter-coupled transistor pair (10) and also a second collector (4) of the second emitter-coupled transistor pair (20) are commonly connected; first DC-voltage applying means (16: 17) connected to the first input terminal (8), for applying a first offset DC (direct current) voltage having a predetermined level between a first base electrode (11) of the first emitter-coupled transistor pair (10) and a first base electrode (12) of the second emitter-coupled transistor pair (20); second DC-voltage applying means (18: 19) connected to the second input terminal (9), for applying a second offset DC voltage having the same level but an opposite polarity to that of the first offset DC voltage between a second base electrode (14) of the first emitter-coupled transistor pair (10) and a second base electrode (13) of the second emitter-coupled transistor pair (20); and, capacitance means (7) connected between the first and second output terminals (OUT₁: OUT₂).
Patent EP-0370193-A2 (EP)
Inventor: VELTRUP ELMAR M DIPL-ING
IPC: F16L55/18
Filed: 1989-09-20
Abstract: The invention relates to a process for the partial reconstruction of pipes, especially drainpipes, in which the damaged location is covered on the inside with a coating. So that even inaccessible pipes can be partially reconstructed, a sealing strip is to be laid in the peripheral direction around a tubular balloon whose periphery corresponds to the inner periphery of the pipe to be reconstructed. The balloon, laid flat, together with the sealing strip is folded once or several times to form a pack. The pack is put into the pipe up to the damaged location. The balloon is unfolded there and inflated until the sealing strip bears on the inside against the pipe and seals the damaged location. The balloon is then removed again from the pipe. <IMAGE>
Patent EP-0360271-A2 (EP)
Inventor: MIURA TAKASHI FUJITSU LIMITED
IPC: H01H50/36
Filed: 1989-09-21
Abstract: An electromagnetic polar relay comprising: a coil (1); and armature (3) swingable in the coil; a main yoke (12) alongside the coil; a permanent magnet (6) polarised along a direction of swing of the armature and located along a flat edge of the main yoke; a first pole plate (12c) which is a part of the main yoke (12) and is bent orthogonally from the main yoke in parallel to an axis of the coil, and is magnetically connected with one pole of the permanent magnet; a second pole plate (13) facing the first pole plate and magnetically connected with another pole of the permanent magnet. An edge of the second pole plate (13) faces the flat end of the main yoke (12) and is magnetically connected the with the main yoke through a reluctance which is larger than that between the first pole plate (12c) and the main yoke (12). The high reluctance is, for example, provided by an air gap formed of a tapered edge (13g). One end (3b) of the armature (3) is pivotally and magnetically connected to another end (12b) of the main yoke (12). The other end (3a) of the armature (3) swings between the first (12c) and second (13) pole plates depending on current application to the coil.
Patent EP-0352823-A2 (EP)
Inventor: FRIEL DANIEL D
IPC: B24B3/54
Filed: 1985-03-11
Abstract: An apparatus for sharpening knives, and the like where fixed abrasive elements on an orbiting surface in contact with the knife cutting edge facet move in a mechanically generated uniform cyclic orbit of circumference less than about one (1) inch and through that motion provides the work and energy to sharpen the knife or blade edge. The apparatus provides a circumferential velocity of the abrasive element of less than 800 feet per minute and restrains motion of the abrasive surface to less than ± .005 inch in a direction perpendicular to the intended plane of the knife or knife edge facet. The apparatus contains novel magnetic and other means to steady, guide and control position and angle of the face of the blade relative to the orbiting abrasive elements, to realign any burr or sharpening debris on the knife edge, to control in part the abrading forces, and to remove sharpening debris from the abrasive surface and sharpening zone. A means used to create the orbital motion of the abrasive surface utilizes a pair of synchronously driven eccentric cranks that engage an orbiting drive plate that supports the abrasive surface or surfaces, where the eccentric cranks are mounted on or are an integral part of the shafts of two gear pulleys driven syncronously by means of a motor-driven timing belt, and where the supporting drive plate is constrained to orbit in a prescribed principal plane by means of fixed bearing support points.
Patent EP-0371231-A2 (EP)
Inventor: PETERSEN ROGER J
IPC: G06F3/037
Filed: 1989-09-29
Abstract: An image data generation circuit for a conventional raster display comprises a graphics systems processor and a standard video dynamic random access memory (VRAM) interconnected by an address translator circuit. The VRAM is connected to the raster display. The graphics system processor is preferably an off-the-shelf graphics system processor capable of drawing horizontal lines very quickly. This graphics system processor is configured to transpose raw data to achieve the same horizontal drawing speed while drawing in the vertical direction and feeds the resulting image data to the address translator circuit. The address translator circuit reconverts the image data for storage in the VRAM so that the image data can be accessed in a conventional manner to modulate the electron beam of the raster display. In one example, this results in an eight-fold increase in the update or refresh rate of the corresponding image on the raster display.
Patent EP-0363973-A2 (EP)
Inventor: MINATO YUKIO C O NEC CORPORATI
IPC: H01L21/8229
Filed: 1989-10-12
Abstract: A semiconductor memory device is constructed of a lateral bipolar transistor as a load element. The base region of the lateral bipolar transistor has an impurity concentration which is increased from the upper surface of the base region in the depth direction of the base region.
Patent EP-0370411-A2 (EP)
Inventor: SCHMIDT HARALD HANS
IPC: G01K7/04
Filed: 1989-11-17
Abstract: A thermocouple assembly and method of making it wherein a pair of wires formed of dissimilar metals extend through electrical insulating material in a thin flexible stainless steel sheath. A forward portion of the sheath containing the wires is snugly received in a nickel alloy casing which is then bent to form an opening to receive a screw therethrough to accurately secure the forward end of the thermocouple assembly in place. The casing is made strong enough to maintain the circular shape and bending the sheath and casing together securely retains the sheath in the casing.
Patent EP-0370472-A2 (EP)
Inventor: AZZANI ROBERTO
IPC: B29C70/34
Filed: 1989-11-21
Abstract: The process makes use of a lost core of polystyrene, on which are wrapped and compacted, in successive stages, various sheets or mats of carbon fibre, of known type; a first compaction is effected in an autoclave after having sealingly wrapped the core, before lamination of the carbon fibre layers, in a first polythene envelope, and after having sealingly wrapped the partly finished product constituted by the core wrapped in the first polythene envelope and some of the carbon fibre sheet or mat in a second polythene envelope, by creation of a vacuum within the interior of the second envelope, whilst maintaining the interior of the first envelope in communication with the outside of the second envelope; a second compaction, after removal of the second envelope, following lamination of further sheets or mats and possible mounting of metal inserts on the core and insertion of the partly finished product thus obtained between a pair of mould halves, is effected in an autoclave by wrapping the two mould halves, preliminarily fixed together, in a third polythene envelope connected in a fluid-tight sealing manner to the first envelope and within which is created a vacuum, whilst the interior of the first envelope is left   connected to the interior of the autoclave; there follows a polymerisation and curing in the autoclave of the laminated sheets or mats in a known standard cycle.
Patent EP-0381833-A2 (EP)
Inventor: LIIAS PEKKA
IPC: A47B1/02
Filed: 1989-12-05
Abstract: The invention relates to an extensible table com­prising a table plate comprising at least two table plate portions, and a foot construction supporting the table plate, at least one slide bar unit being ar­ranged under the table plate in its immediate vicin­ity. The slide bar unit comprises at least two inter­connected slide bars (9) longitudinally displaceable with respect to each other so as to draw the table plate portions (2, 3) apart from each other for in­serting an additional table plate portion between them. In order that the table could be extended by means of small slide bars in such a manner that it re­mains in a straight, horizontal position when extend­ed, each slide bar (9) in the slide bar unit comprises a longitudinal groove (16) in which a guide piece (19) is fastened close to one end of the slide bar, the guide piece being arranged eccentrically in the groove so that its edge (20) facing away from the table plate and entering the groove of the adjacent slide bar is at a greater distance from the centre line of the groove (16) than its opposite edge (21), similarly entering the groove of the adjacent slide bar.