baber/WOPTO huggingface dataset:
Patent EP-0293569-A2 (EP)
Inventor: FERENCE JONATHAN H
IPC: H05B39/04
Filed: 1988-03-29
Abstract: One or more power dimmers (10, 10′) have a preshaped phase controlled input signal connected to their control input (11, 11′). The preshaped phase controlled input signal is generated from the output of a master dimmer (20) having conventional phase control circuits operated from a manual or other control. A relay (42) having contacts (18) in the output circuit of the power dimmers is opened in response to the reduction of the phase controlled input signal to a value less than a given value. In an alternative embodiment, the power dimmers are replaced by an interface circuit (204, 208, 210) which produced a variable frequency, pulse width modulated or other signal.
Patent EP-0288983-A2 (EP)
Inventor: GRINDON JOHN RUSSELL
IPC: G02B26/04
Filed: 1988-04-26
Abstract: A projector for selectively projecting patterns of light onto a remote object (64), one use of which is in conjunction with a system to establish measurements of the surface characteristics of the object, the projector including at least one light source (50) and associated lens assembly (12) mounted to project light onto the remote object, and a rotatable mask member (30) having two or more segments (32A-32H), each segment a distinctive optical pattern, which mask can be rotated so as to position a selected one of the segments between the light source and the projection lens assembly whereby when light is directed through the selected segment the light projected onto the remote object will be modified by the optical pattern on that segment. The projector may have two or more spaced light sources (50-58) and associated projection lens assemblies (12, 14), and the mask (30) rotatable therebetween to produce distinctively different patterns of light impinging on the remote object when the respective light sources are illuminated, the patterns of light projected on the object when a selected mask segment is positioned in the path of one of the light sources when it is illuminated being angularly related to the pattern of images projected on the object when that same segment is positioned between a second light source and second lens and that second light source is illuminated.
Patent EP-0297392-A2 (EP)
Inventor: MEISEN ULRICH DR
IPC: G11B5/706
Filed: 1988-06-21
Abstract: Finely divided magnetic hexaferrite pigments of the general composition: M(I)xM(II)yM(III)zFe12-(y-z)O19   where O<=x<=3, 0.1<=(y+z)<=3, (x+y+z)>=1.0 M(I) = Ba, Sr, Ca, Eu, Pb or a combination of RE and monovalent cations from the group consisting of Li, Na, K, Rb, Cs, Ag, Ti and RE = La, Y, Sc, Bi or other rare earth metals and M(II) = Fe(II), Mn, Co, Ni, Zn, Cu, Cd, Mg, Sn(II) and M(III) = Ti, Zr, Hf, Ga, Sn(IV), Ge, In, Sc, Nb, Ta, V, As, Sb, Bi, Al, Cr(III), Mo, W, are prepared by obtaining a precursor by decomposition of organic compounds, adding a salt mixture to this precursor and igniting it at a temperature of 700 to 1000 DEG C, which results in the formation of the final ferrite, which is recovered from this mixture by leaching with water.
Patent EP-0314900-A2 (EP)
Inventor: CAPELLE GERD DIPL-ING
IPC: B29C48/07
Filed: 1988-09-08
Abstract: A process and a calender system are disclosed for producing tyre profiles of car tyres composed of more than one rubber component, in which the individual rubber profiled strips composed of various mixtures are extruded by means of profile heads having corresponding mouthpieces onto a rotating roll. Each profile component strip is produced individually on a calender, trimmed at the edges on the respective roll of the calender and the edge-trimmed profile component strips are subsequently laminated together to form a finished profiled strip in the nips formed by the individual rolls of the calenders. By means of this process, consequently a tyre profile of very exact dimensions is obtained. The apparatus is of a clearly arranged design and is simple to produce. 
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Patent EP-0311826-A2 (EP)
Inventor: BERMOND GABRIELE
IPC: F16D1/094
Filed: 1988-09-24
Abstract: A bearing fastened to the shaft by means of a tractive bush has the inner ring (24) with a cylindrical surface and between said ring and the shaft on which it is assembled, a bushing (10) and a bush (13) are interposed and coupled to each other by means of corresponding tapered notches surfaces (11 and 16); the bush (13) bears an end flange (19) appointed to operate sealing against a side of the bearing; the bushing (10) is extended over its tapered notches part (11) with a threaded part on which a ring nut (25) is screwed, the latter one is also equipped with a flange (29) appointed to operate sealing against the other part of the bearing.
Patent EP-0315206-A2 (EP)
Inventor: KUBOTA HIROSHI
IPC: B41J2/205
Filed: 1988-11-04
Abstract: A dot printer (1) is disclosed for effecting the print by ejecting ink in dots such that under the normal print speed mode in which the dot density is high, a standard amount of ink is ejected per dot, and under the high print speed mode, or draft mode, in which the dot density is low, a greater amount of ink is ejected per dot.
Patent EP-0320671-A2 (EP)
Inventor: OSTERTAG KLAUS
IPC: G01M11/00
Filed: 1988-11-23
Abstract: A scanning device for scanning plain text characters of a character tape (20) applied to a carrier (18), particularly a CD disc, is described. The direction of viewing of a light receiver (16) is selected with respect to the direction of incidence of the light, emitted by a light source (10), impinging on the plain text characters exhibiting the structure of an optical grating, in such a manner that the light receiver (16) only receives light of an order of diffraction not equal to zero. This optimizes the contrast between the plain text characters to the read and the background. <IMAGE>
Patent EP-0327723-A2 (EP)
Inventor: DELLER KLAUS DR
IPC: C04B35/46
Filed: 1988-12-23
Abstract: Die-formed articles based on pyrogenic titanium dioxide having the following physical-chemical data:
 
 external diameter                                 2 to 15 mm BET surface area according to DIN 66 131       35 to 65 m<2>/g pore volume                                  0.3 to 0.8 m<3>/g breaking strength                                40 to 300 N pore distribution      no pores of <10 nm diameter, at least                        80 % of the pores in the range from                        10 to 70 nm diameter composition            at least 94 % by weight of TiO2                        (predominantly, i.e. >50 % by weight                        of anatase), the remainder being                        SiO2 and Al2O3, 
 are produced by mixing and compacting pyrogenic titanium dioxide with a pore former such as, for example, urea and with water, if appropriate additionally with a binder such as, for example, kaolin and, if appropriate, with a tabletting aid such as, for example, wax, drying the resulting mass at a temperature from 80 to 120 DEG C and comminuting it to give a powder, pressing the powder by means of a known device to give die-formed articles and heat-treating these at a temperature from 400 to 600 DEG C for a period of 0.5 to 4.5 hours. 
<??>The die-formed articles are used as a catalyst support or catalyst.
Patent EP-0329864-A2 (EP)
Inventor: YOSHIHARA KENJIRO
IPC: F26B3/28
Filed: 1988-12-13
Abstract: A far infrared drying device comprising a hot air chamber housing (12) having an inner end and an outer end and defining therein a hot air chamber (12a), an electric heater (18) and a blower unit (24) disposed adjacent the inner end of the hot air chamber housing for introducing hot air into the hot air chamber, a radiant heat-­resistant plate (16) disposed across the outer end of the hot air chamber housing, and restrictive aperture means (30) provided in at least one of the hot air chamber housing and the radiant heat-resistant plate for dis­charging the hot air introduced into the hot air chamber therefrom while restricting the amount of the discharged hot air, the radiant heat-resistricted plate having a ceramic layer (31) over its outer surface.
Patent EP-0276123-A2 (EP)
Inventor: KRUIP MARCEL JAN MARIE
IPC: H01F7/20
Filed: 1988-01-19
Abstract: A cyclotron includes a magnetic field generating assembly defined by a pair of main, superconducting coils (18, 19) mounted about the axis (1) of the cyclotron on a former (20). The coils (18, 19) are surrounded by an iron shield (34) positioned within a cryostat (21). Radially outwardly of the shield (34) are positioned a pair of coils (49, 50) which guide most or all of the magnetic flux due to the coils (18, 19) leaking out of the shield back into the shield.
Patent EP-0282216-A2 (EP)
Inventor: BROOMFIELD GEOFFREY HUGH
IPC: G01K7/04
Filed: 1988-03-01
Abstract: A thermocouple (10), particularly for use in a gas turbine engine, comprises a mineral-insulated thermocouple element (12) having its sensing end (20) reduced in diameter by swaging, to increase sensitivity and reduce response time. Instead of swaging the whole sensing end to the reduced diameter, with a relatively large taper angle, typically about 14°, between the swaged and unswaged portions, the end is provided with a more gradual taper extending over substantially its whole length and having an inclusive taper angle of not more than 5°, and preferably about 2½°.
Patent EP-0297747-A2 (EP)
Inventor: HOLMES MICHAEL
IPC: F02D43/00
Filed: 1988-06-13
Abstract: An adaptive control system for a four cylinder spark ignition engine includes a memory (35) containing basic values and a memory (38) containing correction values for the spark advance angle. From these values basic and correction values are calculated and added in a summer (37). The output of summer (37) is supplied to one input of a summer (41), the output of which is supplied to the input of a dwell control device (17). In order to apply positive and negative perturbations to the spark advance angle, the output of a perturbation generator (40) is applied to the other input of summer (41). Values of the actual slope of engine speed with respect to spark advance are calculated in slope calculating device (46), the output of which is supplied to the negative input of a summer (49). Target slope values, calculated from values stored in a memory (45), are supplied to the positive input of summer (49). The values in memory (45) are equal to, or less than, zero. The output from summer (49) is supplied to an updating device (47) which updates the correction values stored in memory (38). 
     Each perturbation cycle comprises three engine fires. A positive perturbation is applied to the spark advance angle for the first fire and negative perturbations are applied for the remaining two fires. By using this perturbation cycle, synchronization between the engine and perturbation cycles is avoided while maintaining the perturbation frequency above the resonance frequency of the vehicle driveline under normal driving conditions.
Patent EP-0298707-A2 (EP)
Inventor: SAKAMOTO KENJI
IPC: H02J7/02
Filed: 1988-07-06
Abstract: A charging device for re-charging the re-­chargeable power source or secondary battery (21) in an analog electronic wrist watch (17) includes a pair of charging coils (6,6′) to which current is supplied at a predetermined frequency. The charging coils are disposed on a coil yoke (12) of magnetic permeable material and the battery (21) is electrically connected through a rectifier (20) to a secondary coil (18) wound on a core (19) of magnetic permeable material. For re-­charging, the wrist watch is positioned upon the charging device with the core (19) across the charging coils and AC current is supplied. Current is induced electro-magnetically in the coil (18) and re-charges the battery. The frequency is so chosen as to avoid frequencies which might interfere with the continued operation of the wrist watch. For charging efficiency, a frequency of approximately 1000 Hz is chosen.
Patent EP-0317101-A2 (EP)
Inventor: MACPHERSON HUGH
IPC: G01R31/02
Filed: 1988-10-27
Abstract: A security system comprises a signal-carrying member and a detector for detecting a change in the resistance of a conductive path surrounding a core of the signal-carrying member. The conductive path comprises inner and outer layers (11,13) of semi-conductive tape separated by an insulating layer (12) but interconnected at one end. The semi-conductive tape of at least the outer layer is made of fibrous material such as carbon-loaded PTFE such that when a sharp object pierces the outer layer (13) and the insulating layer (12), semi-conductive fibres are dragged from the outer layer into contact with the inner layer (11) and form a conductive bridge between the layers.
Patent EP-0282419-A2 (EP)
Inventor: MEHTA VIJAY C
IPC: C07F3/00
Filed: 1988-03-14
Abstract: An ether free magnesium bisorganoamide of the formula 
    Mg[N(R¹)(R²)]₂ 
wherein R¹ and R² are independently selected from hydro­gen and alkyl groups containing 2 to 20 carbon atoms with the proviso that at least one of R¹ and R² is other than hydrogen or R¹ and R² taken together form an alkyl­ene chain of 4 to 20 carbon atoms and a method of manu­facture. Also disclosed are lithium-magnesiumorgano­amides and organosubstituted lithium-magnesiumorgano­amide.
Patent EP-0342647-A2 (EP)
Inventor: SCHMIDT RALF
IPC: G07D7/12
Filed: 1989-05-17
Abstract: In a method for examining sheet-like objects by scanning the sheet-like object with radiation along a given scanning route and generating a succession of scanning signals determined by properties of the sheet-like object, the values of which scanning signals are compared with stored reference values for the purpose of giving off a detection signal, the scanning signals are generated independently of the radiation-permeability of the sheet-like object, a mean value of the scanning signals and a similar mean value of the reference values being used as values to be compared.
Patent EP-0344666-A2 (EP)
Inventor: MORL LOTHAR PROF DR SC TECHN
IPC: A23L1/18
Filed: 1989-05-27
Abstract: The invention relates to an apparatus for intensive gas/steam/solid contact. It can be used wherever intensive gas/steam/solid contact independently of the grain form of the solid is desired, for example in the expansion of starch-containing products. The apparatus for intensive gas/steam/solid contact consists of a reaction space with a vertical axis and an inner wall at an angle to the horizontal greater than the wall friction angle of the solid, a gas/steam charging point with the elements of the gas/steam feed, a distribution chamber and inlet orifice, a device for charging the solid and a device for discharging the solid.
Patent EP-0353498-A2 (EP)
Inventor: SCALZO AUGUSTINE JOSEPH
IPC: F04D29/54
Filed: 1989-07-11
Abstract: A combustion turbine comprising a casing (50), and a rotor (40) including a plurality of rotating blades (42) has a compressor portion (34) with a diaphragm assembly including vane airfoils (66) with inner shrouds (68) formed integrally therewith, and an outer ring sub-­assembly (72) having grooves disposed at a stagger angle and receiving the vane airfoils (66), the grooves extending preferably perpendicularly to the force vector generated by the gas flow past the airfoils (66).
Patent EP-0352582-A2 (EP)
Inventor: SOLLINGER HANS-PETER DR
IPC: D21H23/70
Filed: 1989-07-15
Abstract: The coating device features a first applicator which, to begin with, forces coating substance applied on the shell of a web roll (1), in a press gap formed between said roll and a press roll (2), into the web (W), thereby impregnating it. This makes it possible to apply with maximum uniformity and without web breaks and wrinkles, immediately successively, a second coating layer during the still wet condition of the first layer where, naturally, again a web guide roll (3) is provided.
Patent EP-0360112-A2 (EP)
Inventor: KRISHNAN SIVARAM
IPC: C08L69/00
Filed: 1989-09-09
Abstract: A molding composition comprising a poly­carbonate resin and plating modifier was found to be suitable for preparing metal coated articles where the metal coating is deposited by an electroless process. The plating modifier in accordance with the invention is at least one member selected from the group consisting of a polyanhydride, and a monovinyl aromatic-acrylo­nitrile copolymer. An advantageous embodiment of the invention includes incorporating in the molding composition a flame retarding amount of a conventional flame retarding agent for polycarbonate compositions.
Patent EP-0331371-A2 (EP)
Inventor: QUESNEL GUY CHARLES
IPC: H04Q1/448
Filed: 1989-02-24
Abstract: Within a digital PBX system or the like, an apparatus permits provision of digital composite tone alerting particularly suitable for piezoelectric transducers with one arbitrarily selectable tone, by means of logic circuits for latching the sign-bit in a received PCM signal that exceeds a validity threshold, and by combining the toggling sign-bit with another tone to yield the composite tone.
Patent EP-0334507-A2 (EP)
Inventor: HORROBIN DAVID FREDERICK C O S
IPC: A61K31/20
Filed: 1989-03-07
Abstract: A composition, particularly an oral composition, for improving the smoothness of the skin, wherein GLA or DGLA or both as such or in the form of physiologically acceptable and equivalent derivatives are brought into administrable form with a carrier or diluent.
Patent EP-0338798-A2 (EP)
Inventor: OHYAMA KAZUNOBU C O SHIGA PLAN
IPC: H02M7/5387
Filed: 1989-04-18
Abstract: A pulse width modulation (PWM) control unit of an inverter (3) in which a carrier frequency having a normal value of about 5KHz, calculates the ON time (PWM control pattern) at every calculation period corresponding to such carrier frequency and divides the calculated ON time into a plurality of pulses. This enables such conditions to be presented that simulate that the PWM control was carried out at high carrier frequency (20 KHz or higher), while using a one-chip microcomputer (8) which requires a comparatively long calculation time. Thus, PWM Control by high carrier frequency can be attained at lower cost and with a simple circuit construction.
Patent EP-0349304-A2 (EP)
Inventor: WILLIAMS RICHARD STEPHEN
IPC: B65B/
Filed: 1989-06-29
Abstract: A preformed container closure element, preferably a cap, is formed of a polymeric matrix containing an ethylene vinyl alcohol polymer to reduce oxygen permeability of the cap. The cap is of special value for sealing filled jars or bottles, especially of glass, wherein the filling is beer.
Patent EP-0364106-A2 (EP)
Inventor: BRONICKI LUCIEN Y
IPC: F24S20/20
Filed: 1989-09-13
Abstract: A method for producing power comprises compressing gas from an ambient source during a first period of time; storing the compressed gas in a storage reservoir (90); and supplying said compressed gas from the storage reservoir to a gas turbine (60) during a second period of time to produce electric power. The first period of time may coincide with periods of off-peak demand for electricity, such as at night. In such case, the said second period of time is during the day. 
     The compressed gas supplied to the gas turbine may be heated in a combustion chamber (58) wherein fuel is burned, and/or a solar collector. 
     A sensing/control unit (59) may be provided which is responsive to the temperature of the gas exiting the solar receiver for effecting operation of the combustion chamber when the temperature of the gas falls below a predetermined value. 
     The heat available at compressor intercoolers/turbine exhaust can be used to vaporise a suitable liquid to drive additional turbines, to increase the power output of the plant.
Patent EP-0360580-A2 (EP)
Inventor: KNEEZEL GARY A
IPC: B01D29/01
Filed: 1989-09-20
Abstract: Relatively small fluid handling device having a filter bonded on the surface containing the fluid inlet. An example of such a device is a thermal ink jet printhead (10). A substantially flat filter (14) is placed at the ink inlet (25) to the printhead by a fabrication process which laminates a wafer sized filter to the aligned and bonded wafers containing a plurality of printheads. The individual printheads are obtained by a sectioning operation, which cuts through the two or more bonded wafers (28, 31) and the filter (14). The filter may be a woven mesh screen or, preferably, an electroformed screen with a predetermined pore size. Since the filter covers one entire side of the printhead, the relatively large contact area prevents delamination and enables convenient leak-free sealing. The filter prevents the entrance of contaminants into the relatively large inlets of the printhead at an early stage of assembly and packaging.
Patent EP-0361879-A2 (EP)
Inventor: TAKANASHI ITSUO
IPC: G11B9/00
Filed: 1989-09-26
Abstract: There is disclosed a recording/reproducing system comprising an optical system for directing along a path of an electromagnetic radio ray from an object toward a recording medium, and a recording head disposed in the path for generating a charge latent image onto the medium. The feature of the system resides in that the recording head (system) forms the detection region which is not entirely subject to the influence of the electromagnetic radio ray and which is provided in a portion of the charge recording region of the medium, and in that a reproducing system discriminates the polarity of charges or the recording mode of the charge latent image recorded onto the medium by detecting the charges in the detection region.
Patent EP-0369663-A2 (EP)
Inventor: IKEDA AYUMI
IPC: G02F1/1337
Filed: 1989-11-06
Abstract: A colour liquid crystal display having a filter/ orientation film which functions both as an orientation layer controlling the orientation of liquid crystal molecules and as a colour filter, in which said film has recurring polyimide units represented by one of the following four general formulae:
Patent EP-0371796-A2 (EP)
Inventor: KIMURA TAKAFUMI
IPC: H01L21/365
Filed: 1989-11-30
Abstract: An apparatus for a chemical vapour deposition of a compound film on a substrate, comprising a plurality of gas-generating chambers (7a-7d) each containing an evaporating boat (2a-2d) for a solid source containing a component element of a compound film to be formed on a substrate, provided with a heating element (3a-3d) for heating and evaporating the solid source, having an inlet (4a-4d) for a carrier gas, and a gas outlet. The chambers (7a-7d) are arranged such that effective gas-generating portions (G) thereof are thermally isolated from each other. A gas-mixing chamber (M) for mixing gases from the gas-generating chamber is provided with heater element (3e) for heating a gas passing therethrough and has inlets for gases flowing from the gas-generating chambers and an outlet for a gas mixture. A film-growing chamber (F) for containing a substrate (5) on which a compound film to be formed by a gas phase reaction, is provided with a heating element (3e) for heating substrate, and has an inlet for a gas mixture flowing from the gas-mixing chamber and an exhaust gas outlet. Also disclosed is a chemical vapour deposition process using the disclosed apparatus.
Patent EP-0387450-A2 (EP)
Inventor: TSUTSUMI TOSHIHIKO
IPC: H01L21/68
Filed: 1989-12-19
Abstract: IC sockets for use in a burn-in test are dis­closed. The IC sockets are produced by injection molding of a specific polyimide having an inherent viscosity of 0.35 to 0.65 dl/g and essentially consisting of recurring units represented by the formula (I):
      wherein X is a radical selected from the group consisting of a bond, divalent hydrocarbon having from 1 to 10 carbon atoms, hexafluorinated isopropylidene etc. and R is a tetravalent radical selected from the group consist­ing of an aliphatic radical having two or more carbon atoms, cycloaliphatic radical, monoaromatic radical etc.