baber/WOPTO huggingface dataset:
Patent EP-0398901-A1 (EP)
Title: Interface circuit for linear variable differential transformer.
Inventor: DEVITO LAWRENCE M
IPC: G01D5/22
Filed: 1988-10-19
Abstract: A monolithic interface circuit for use with a linear variable differential transformer (LVDT) position transducer includes a drive circuit for providing an excitation signal of selectable frequency and amplitude to the LVDT primary winding. The interface circuit further includes a decoder responsive to signals induced in the LVDT secondary windings for computing the position p of the LVDT core as a solution to the equation p = K(A-B)/(A+B), where A and B represent the signals induced in the primary winding, and K is a constant scale factor. The decoder includes circuitry for rectifying (54,64) and filtering (56,66) the secondary signals (A,B), a charge balance loop (58,68,70,72,74) responsive to the detected signals for providing a binary signal having a duty cycle representative of B/(A+B), and an output circuit (80,82,86,88,90,92,94) responsive to the binary signal for providing the position output. The decoder provides excellent scale factor stability and linearity and is relatively insensitive to variations in primary drive amplitude. <IMAGE>
Patent EP-0425485-A1 (EP)
Title: Preparation of polymeric surfaces
Inventor: GUIRE PATRICK E
IPC: A61L27/34
Filed: 1988-12-15
Abstract: Surfaces are provided with desired characteristics of a polymer by covalently bonding polymer molecules to the surface through external activation of latent reactive groups carried by the polymer molecules. The initial surfaces are free of chemical groups added by surface pretreatment and which chemically participate in the covalent bonding process.
Patent EP-0372013-A1 (EP)
Inventor: RUF PETER
IPC: E02F3/96
Filed: 1989-02-16
Abstract: Cette pince à pierres pour pelleteuse résout un vieux problème, cest-à-dire que les grosses pierres apparaissant lors de l'excavation ne peuvent pas être levées avec la pelle normale. Ce problème est résolu dans le présent brevet avec deux bras ou parties de pince (1) additionnels, qui peuvent être montés et commandés hydrauliquement sur la pelle normale (2). De cette manière les grosses pierres apparaissant pendant le creusement peuvent être saisies et évacuées.
Patent EP-0408589-A1 (EP)
Inventor: O K ORENSTEIN KOPPEL AKTIENGES
IPC: B02C23/08
Filed: 1989-03-15
Abstract: L'installation de concassage décrite comporte un dispositif de chargement permettant de charger un concasseur situé à une hauteur considérable au-dessus d'une trémie de chargement, et un extracteur à bande. Dans le but de réduire les coûts d'exploitation, et par conséquent l'usure du concasseur, d'obtenir un concasseur de dimensions inférieures aux concasseurs connus, et de réduire la taille et le poids en charge de l'installation dans son ensemble, le dispositif de chargement (2) permettant de charger le concasseur(3) comporte des barres parallèles (12) espacées et des traverses (16) ou similaire agencées perpendiculairement au sens longitudinal des barres (12) sur ou contre lesquelles elles glissent, et l'extracteur à bande (4) s'étend jusqu'au-dessous des extrémités des barres situées sous la trémie de chargement (1).
Patent EP-0433335-A1 (EP)
Inventor: BENGTSSON LENNART
IPC: F16L47/06
Filed: 1989-09-06
Abstract: Le dispositif et le procédé décrits servent à former un joint (5) résistant aux contraintes de traction et étanche aux fluides entre deux éléments (2, 4) destinés à être introduits l'un dans l'autre, par application d'un matériau élastique (6) sur au moins un des éléments (2 ou 4). Le matériau est appliqué sur l'extrémité de l'élément faisant face à l'autre élément et est collé à cette extrémité. On utilise de cette façon à la fois les forces de friction entre les surfaces en contact du joint et les propriétés d'étanchéité du matériau élastique (6).
Patent EP-0381102-A1 (EP)
Inventor: GABRIAGUES JEAN MICHEL
IPC: H04J14/02
Filed: 1990-01-29
Abstract: The network uses monomode reception (101) and transmission (102) optical fibres connecting terminals via a star-configured coupler. A local oscillator (106) is provided in each terminal (100) in order to effect heterodyne reception. In respect of exchanges of messages over a frequency channel, the frequencies of the transmitters (105, 205) of the relevant terminals, and those of their local oscillators (106, 206), are adjusted locally, on the basis of the frequencies of adjacent channels occupied by other exchanges of messages, or, on default on the basis of a base frequency emitted by a common generator. For this purpose these terminals perform a frequency incrementation by virtue of a frequency scanning and a clock (125) and filters (120, 122, 125) making it possible to locate an available channel. The invention applies to telecommunications. <IMAGE>
Patent EP-0383109-A1 (EP)
Inventor: BEHRENS WOLFGANG
IPC: B09B1/00
Filed: 1990-02-02
Abstract: To reduce the nitrate content in groundwater, drinking water or surface water, bark mulch (12) is introduced into the ground (10). To achieve a large surface area, bark mulch is used in a particle size of smaller than 20 mm, and it is further proposed that bark mulch is mixed with granulated clay and lava. The bark mulch, or bark mulch mixture, results in nitrogen being bound and stored in the growth-free period (autumn to winter), and with the beginning of the vegetation time (spring), the nitrogen required by the plants at this time is again set free. <IMAGE>
Patent EP-0442011-A1 (EP)
Inventor: SECKER HERBERT
IPC: A61B5/288
Filed: 1990-02-15
Abstract: A sensor for non-invasive measurement of oxygen saturation using the reflection method comprises a red transmitter (55), an infrared transmitter (58) and a receiver (57). The distances between the transmitters and the receiver are selected such that the length of the light path (60, 61 ) between the red transmitter (55) and the receiver (57) is substantially equal to the length of the light path (62, 63) between the infrared transmitter (58) and the receiver (57). The sensor comprises a further red transmitter (56) which is used for another application at the human body or another tissue characteristics where the depth of penetration at the various wavelengths is different from the shown example. Together with an appropriate oximeter, manual or automatic adaptation is possible. Further signal improvement may be obtained by autocorrelating the received signal, detecting its frequency and cross-correlating it with a pattern function of the same frequency.
Patent EP-0387731-A1 (EP)
Inventor: REICHEL GUENTER
IPC: E06B7/22
Filed: 1990-03-10
Abstract: A partition or door (10) for a shower partition is mounted adjustably on an attachment profile (12) and is displaceable or swivellable relative to the latter. At least the bottom edge (21) of a glass or plastic plate (50) is terminated by a profile strip (22) which is approximately lenticular in cross-section and is composed, if appropriate, of two shells. Further such profile strips (23, 82, 92) can grip tightly around other edges (51, 81, 91) or parts thereof. There is a flexible lip seal (26) at the bottom side. At least one drainage channel (44) extends obliquely or in a hollow curved manner back into the interior of the shower partition. The profile strips (22, 23, 82, 92) are preferably made of soft elastic, e.g. of foamed polyurethane; they may have reinforcement inserts (69, 70) and be flexible for local fitting. Adjacent partitions or doors (10, 100) may form angular or round shower partitions with mutually facing outside edges (46, 48) of the frame. 
<IMAGE>
Patent EP-0401680-A1 (EP)
Inventor: SCHLUETER GERD
IPC: H02K21/24
Filed: 1990-05-31
Abstract: A current supply device for bicycles is specified, in which a disc- shaped armature (44) is arranged in a fixed manner between permanent magnets (47, 48) rotating with the hub of a wheel. The armature is constructed as a copper-coated insulating armature with conductor tracks using three-phase technology. There are no carbon brushes or other consumable parts, so that a closed housing can be used. 
<IMAGE>
Patent EP-0403874-A1 (EP)
Inventor: CAVALLO ELIO
IPC: G03C1/18
Filed: 1990-06-06
Abstract: A light-sensitive silver halide element for radio­graphic use with X-ray intensifying screens comprising coated on at least one side of a transparent support base at least a spectrally sensitized silver halide emulsion layer and, between the base and a silver halide emulsion layer, a hydrophilic colloid layer containing a) substan­tially light-insensitive low iodide silver bromoiodide grains having an average grain size in the range of from 0.01 to 0.1 µm on which a spectral sensitizing dye is adsorbed to form a J-band, said dye adsorbed on said grains having a significant portion of its absorption in a region of the electromagnetic spectrum corresponding sub­stantially to the spectral sensitivity of the silver halide emulsion, and b) dispersed zinc oxide particles. 
     The invention allows the use of low coverage weights of silver halide light-sensitive elements and provides X-ray images with a favorable image quality and sensiti­vity ratio.
Patent EP-0412549-A1 (EP)
Inventor: IGUAUE TAKAMITSU
IPC: A41B9/04
Filed: 1990-08-09
Abstract: A disposable garment is described, such as an open diaper, a diaper in the form of pants or briefs or so-called baby-training pants, which diaper has an elastic, water-permeable top sheet 6, an elastic, water-permeable backing sheet 7 and elastic parts 4, 5 for the leg and waist openings, which are arranged respectively along the sides of the crotch area and along the ends of the front and back part, an elastic barrier sheet 9 being sandwiched between the top sheet and backing sheet, and, between these two sheets, being affixed at intervals to at least one of them. <IMAGE>
Patent EP-0420293-A1 (EP)
Inventor: ITO KENJI C O TOAGOSEI CHEMICA
IPC: C08J5/12
Filed: 1984-05-17
Abstract: A primer comprising at least one organo­metallic compound, which is useful in bonding non-polar or highly crystalline substrates together or bonding another material, such as a solid material, a coating material, paint or printing ink to the resin substrate by α-cyanoacrylate.
Patent EP-0431323-A1 (EP)
Inventor: SUGAWARA KOKO
IPC: C12R1/03
Filed: 1990-11-05
Abstract: The invention relates to a new antitumor antibiotic compound BU-3983T which is produced by cultivating a BU-3983T-producing strain of  Actinomadura verrucosospora . BU-3983T exhibits antitumor activity.
Patent EP-0432720-A1 (EP)
Inventor: WEIGELT KLAUS DR ING
IPC: H02K15/00
Filed: 1990-12-11
Abstract: A stator winding head is proposed in which the winding bars (5, 7) are bent outwards, clamping a hollow cone. The support is effected by means of an inner ring (9), clamped like a wedge, and a segmented outer ring (25) and supports (15), likewise acting like wedges. 
<??>The bracing of the inner and outer ring takes place by means of tension anchors (29), it being possible to clamp the outer ring (25) in azimuth. It is thus possible to fit said outer ring over the said winding bar cone without dismantling the winding head. 
<IMAGE>
Patent EP-0435191-A1 (EP)
Inventor: GONCALVES ERIC
IPC: B29C35/16
Filed: 1990-12-21
Abstract: A method of making laminated, thermally imageable tag (10), such as a baggage tag, as made from a top sheet (12). The top sheet is precoated on one surface (20) with a thermally sensitive material. A hot-melt adhesive is applied to the bottom sheet (16). The top sheet (12), the reinforcing fibers (14), and the bottom sheet (16) are pressed together, as by two pressing rolls (32, 34) defining a nip. A laminate (18) thus is formed with the reinforcing fibers (14) between the top and bottom sheets (12; 16). The hot-melt adhesive is applied and the top sheet (12), the reinforcing fibers (14), and the bottom sheet are pressed together under conditions insuring that the thermally sensitive material is not heated to its activation temperature by heat transfer from the hot-melt adhesive, through the top sheet (12), to the thermally sensitive material.
Patent EP-0387943-A1 (EP)
Inventor: RAU HANS PROF DR
IPC: B01J7/02
Filed: 1990-03-07
Abstract: In the metering of a vapour-phase substance into a reactor (7), a carrier gas is saturated, in a saturator (1) which is kept at a constant temperature, with the substance (4) to be metered. The resulting gas mixture is passed through a heated capillary (5) to the reactor (7). Exact metering of poorly volatile and/or chemically aggressive substances is permitted by the fact that the capillary (5) is kept at a temperature which is identical to the temperature in the saturator (1) or higher than the temperature in the saturator (1), and that the pressure in the saturator (1) is kept constant and higher than the pressure in the reactor (7). <IMAGE>
Patent EP-0423864-A1 (EP)
Inventor: P VAN DER WAL GILLIS
IPC: A61M5/20
Filed: 1990-10-02
Abstract: The invention relates to a training device for an automatic injector, comprising a cylindrical outer sleeve (18) in the rear portion of which a discharge mechanism is connected and in the front portion of which a holder (19) intended for accommodating a punch member (10; 30; 31) is incorporated so as to be locked against forward movement, 
- in which the discharge mechanism comprises a plunger (14), a coil spring (16) which acts on said plunger (14), a locking device (25) and a safety member, 
- in which the holder (19) for the punch member (10; 30; 31) comprises a sleeve-like rear portion (20) which is open at each end, 
- in which the punch member (10; 30; 31) is accommodated in the holder (19) so that its rear end at least substantially engages the front end of the plunger (14), and that the front prod-shaped end (13; 32; 33) portion which has such dimensions that it can pass through the central aperture (22) in the nose portion (21) of the holder (19) outwards, is present within the holder (19) prior to use of the device, and 
- in which further an auxiliary means (46) is present for making the device ready for reuse. 
     The rear end portion of the punch member (10; 30; 31) comprises means (27; 40; 41) which, in cooperation with means (28) provided on the inner wall of the sleeve-like rear portion (20) of the holder (19), prevent undesired forward movement of the punch member (10; 30; 31) in the holder (19), in which, however, the device at the area of said means (27; 40; 41) is proportioned so that after activation the wall of the holder (19) can expand resiliently outwards within the outer sleeve (18) to allow the punch member (10; 30; 31) to pass.
Patent EP-0420361-A1 (EP)
Inventor: BUSCHMANN ULRICH DIPL-ING
IPC: H01R29/00
Filed: 1990-08-01
Abstract: The invention relates to a circuit board for electronic or electromechanical devices, having a mechanically operable changeover switch for at least two different mains voltages of the device power supply section. …<??>In order to simplify and to be able to produce economically voltage selector switches which were previously relatively costly, it is proposed according to the invention that there be provided in the circuit board a polygonal recess (2) whose edge (3) forms straight polygon sides (2a; 2b), that each polygon side (2a; 2b) has allocated to it a contact surface, each of which is connected to an electrical conductor (5) of the device power supply section, two mutually opposite contact surfaces (4) being associated with one voltage potential and that a contact spring (6) can be inserted into the recess (2), which contact spring is in each case allocated to the contact surfaces (4) and has spring limbs (6a, 6b) which make contact with said surfaces. …<IMAGE>…
Patent EP-0380224-A1 (EP)
Inventor: SARKAR MANISHA C O MINNESOTA M
IPC: B41M5/382
Filed: 1990-01-15
Abstract: A donor element for thermal transfer is provided. The donor element comprises a backing having an organopolysiloxane-polyurea anti-stick surface on one side and a heat-activated, image forming material on the other side.
Patent EP-0379387-A1 (EP)
Inventor: JOWETT JOHN BERNARD
IPC: D05C15/18
Filed: 1990-01-19
Abstract: A carpet loom of the gripper-jacquard Axminster type includes a shogging mechanism (21) to shog the grippers (3) and/or the yarn carriers (1) transversely between successive picks of pile yarn. By shogging the grippers (1) transversely between successive picks of pile yarn a different gripper is used in each course for successive picks. Equally, when the yarn carriers (1) are shogged the pile yarns that form each course are not taken from the same yarn carrier (1). Thus, any fault on the grippers (1) or in the yarn in one carrier (1) will not result in a fault on a single course throughout the entire carpet but will, instead, be dispersed between a number of different courses.
Patent EP-0396236-A1 (EP)
Inventor: PARRIS WARREN M
IPC: C22C14/00
Filed: 1990-03-13
Abstract: An alpha-beta titanium base alloy comprising, in weight percent, .04 to .10 silicon and .03 to .08 carbon, characterized by an increase in strength over that of the alloy absent said silicon and carbon additions. The alloy may additionally comprise 6 aluminum, 4 vanadium, up to .3 iron and up to .25 oxygen.
Patent EP-0398609-A1 (EP)
Inventor: MASON JOHN GERALD
IPC: B23D47/12
Filed: 1990-05-14
Abstract: In a two pole universal motor (10) for a circular saw a secondary winding (78, 80) provides dynamic braking. Both run and brake windings (66, 68, 78, 80) are split electrically with respect to the armature (22). All windings are double-ended. All windings may be terminated directly to fixed end points (70, 72, 74, 76, 82, 84, 86, 88), four at each end of the stator (44), providing for axially oriented plug-in connection of brushes (50, 52) at one end (34) and switch (90) and line (64) at the fan end (38). There are no jumpers within the stator (44).
Patent EP-0477447-A1 (EP)
Inventor: GREGG DAVID PAUL
IPC: G11B7/26
Filed: 1990-09-27
Abstract: A method for manufacturing of a second surface optical recording disk is disclosed. An optically transparent disk cover (10) with tracking grooves (30) and data etched on amating side thereof is mated and embossed into an optically reactive layer of a first surface optical recording laminate web or sheet having an optically active layer (22), a reflective layer (20) and a web support layer (18). The second surface optical recording device thereby created is then cut from the laminate web to yield a second surface optical recording disk.
Patent EP-0481136-A1 (EP)
Inventor: TAHARA MASAKI
IPC: C23C8/34
Filed: 1990-10-17
Abstract: A heat treatment furnace for fluorinating a nitriding steel comprises:
     a liftable inner cover 2 to contain steel material 3; a liftable bell shaped outer cover 1 which covers the inner cover to define a space between the inner and the outer covers, the interior of the inner cover serving as a fluorinating or nitriding chamber, the said chamber communicating with a feed pipe 9 for fluorine- or fluoride-containing gas or for nitriding gas and with an exhaust pipe 12a; and the space between the inner cover and the outer cover serving as a heating chamber; and   a heater 4 for heating the fluorinating or nitriding chamber, disposed with the heating chamber.
Patent EP-0425259-A1 (EP)
Inventor: MOORE ALBERT LLOYD
IPC: C08F210/00
Filed: 1990-10-24
Abstract: Peroxide-curable fluoroelastomers and chlorofluoroelastomers are prepared in the presence of iodinated compounds, with iodine bonding to a substantial number of terminal positions on the fluoroelastomer, and comprising up to 3 weight percent of bromine-containing units selected from fluoroolefins and perfluoroalkyl perfluorovinyl ethers, and complementally at least 97 weight percent of either units of vinylidene fluoride, one or more fluoroolefins, and optionally perfluoroalkyl perfluorovinyl ethers, or units of tetrafluoro­ethylene, perfluoroalkyl perfluorovinyl ether, and ethylene. The resulting fluoroelastomers have improved processability, excellent strength and compression set properties, and are useful in the preparation of injection molded shaft seals, gaskets and other molded parts. The fluoroelastomer is prepared by a continuous emulsion polymerization process.
Patent EP-0383657-A1 (EP)
Inventor: CLUNIAT CLAUDE
IPC: H01Q1/12
Filed: 1990-02-09
Abstract: The antenna system consists of a parabolic reflector (1) associated with source means (2, 3), the reflector being positioned and held by means of a support foot formed from a hollow tubular body (7) fixed at its upper part to the rear central zone of the reflector and hinged at its lower part on a base about a horizontal axis (XX) in order to define the elevation of the antenna. The base comprises a part (24) which is movable in rotation in order to define the azimuth of the antenna. The tubular body (7) of the support foot has a sufficient cross-section to contain all the circuits associated with the antenna. Application, in particular to satellite reception, of which the radiated powers are greater than 50 dBW. <IMAGE>
Patent EP-0415844-A1 (EP)
Inventor: SIMON JEAN-MICHEL
IPC: B60K5/12
Filed: 1990-08-28
Abstract: Device comprising a low rigidity elastic system (2) for supporting the engine (1) and a rigid structure (4) firmly attached to the engine and the vertical displacement of which is limited in both directions by highly rigid stops (3). The invention consists of fitting in series with the engine and the low rigidity system a position recovery drive element (5) controlled by a servo control line (6, 7, 8, 9), so as to maintain the centring of the rigid structure (4) between the stops (3) even under large variations in the load exerted on the system (2) by the engine (1). <IMAGE>
Patent EP-0453693-A1 (EP)
Inventor: CHOLLET PIERRE-ALAIN
IPC: G02F1/03
Filed: 1990-12-21
Abstract: The sensitive element of the sensor is a crystal with electro- optical properties traversed by a light beam with predetermined directions of propagation and polarisation. This crystal is shaped into an ellipsoid (14) and its crystallographic symmetry is either uniaxial 622, 422 or 42m, or cubic 43m or 23. The three perpendicular axes of the ellipsoid are directed along the three orthogonal crystallographic axes of the highest crystal symmetry. This sensor incorporates at least one measurement channel consisting of a monochromatic light source (2) emitting an incident beam (4), a means (6) of polarising this incident beam along a first crystallographic direction of the crystal, means (6, 8, 12) for introducing the polarised incident beam into the crystal along a second crystallographic direction, a system (30) for analysing the light beam emerging from the crystal and a detector (32) of the analysed light signal. 
<IMAGE>
Patent EP-0452358-A1 (EP)
Inventor: HOWES RONALD B JR
IPC: H01H47/32
Filed: 1989-11-15
Abstract: L'invention concerne un procédé et un appareil pour un système d'estampage à solénoïde à double impulsion, mettant en oeuvre un circuit de retour d'intensité, c'est à dire un moniteur de courant (48) assurant une commande précise de l'intensité et de la synchronisation des deux impulsions de courant (4, 5), et assurant une précision du positionnement et de la vitesse des éléments (64a, 64b) d'impression dudit système d'estampage. Afin de maintenir l'intensité du courant pendant la seconde impulsion (5) de courant, le procédé et l'appareil mettent les bobines à solénoïde (55) sous tension et hors tension de manière alternée, avec une fréquence assurant le maintien d'une intensité de courant sensiblement constante dans les bobines à solénoïdes (55). Ledit système d'estampage prévoit un ensemble (61) de corps à solénoïde amélioré, comprenant une première pile de feuilles d'acier (93), un bloc central (82) ainsi qu'une seconde pile de feuilles d'acier (81). Un plongeur (62) est relié de manière coulissante à l'ensemble (61) de corps à solénoïde par l'axe (63). Des cavités(79) reçoivent des goupilles de serrage (71) fixées au plongeur (62). L'agencement de cavité et de goupille de serrage (79, 71) empêche la rotation dudit plongeur (62).