baber/WOPTO huggingface dataset:
Patent EP-0204273-A3 (EP)
IPC: C02F3/30
Filed: 1986-05-30
Abstract: Verfahren zum Entfernen von Nitrat aus Oberflächen- und 
Grundwasser, insbesondere Trinkwasser, mit Hilfe der bio­
logischen Denitrifikation, bei der in einem Reaktor zweistufigen (9, 16) 
mit Hilfe eines Biokatalysators (12, 19) mit immobili­
sierten Zellen, die in einem Gel oder Polymer vernetzt 
sind, die im Wasser enthaltenen Nitrate zu gasförmigem 
Stickstoff reduziert werden. Der vorzugsweise verwendete 
Stamm "Micrococcus denitrificans" benötigt für seinen 
Stoffwechsel Wasserstoff, der zudosiert wird (40, 2, 8, 15) und Kohlen­
stoff, der im Wasser in Form von gelöstem Kohlendioxid 
vorhanden ist. Durch die Verwendung eines Biokatalysators 
aus immobilisierten Zellen und dem verwendeten Bakterien­
stamm ist keine aufwendige Nachreinigung aufgrund erhöhter 
Bakterienzahlen im Reinwasserablauf erforderlich, und es 
entstehen keine unerwünschten Nebenprodukte.
Patent EP-0215282-A3 (EP)
Title: Valve for metal wind instruments
IPC: G10D9/04
Filed: 1986-08-09
Abstract: This invention relates to a flow path selector valve for use in wind instruments made of metal, such as a trumpet or a French horn. The valve comprises at least one pair of valve members, which consist each of a solid of revolution and are rotatably mounted on opposite sides of and in sliding and sealing contact with a centrally disposed, hollow bearing and drive block and integrally connected by a shaft. Each of said valve members consists of a cylinder, preferably of a cone, and contains a curved pipe section, which defines a flow path from an axial opening formed in the axially outer end portion of the valve member to a lateral opening formed in the shell of the valve member. The curved pipe sections are arranged in mirror symmetry in the valve members of said pair. Two air ducts are provided on opposite sides of the pair of valve members and devine flow paths differing in length. Each of said air ducts has two openings at opposite ends. The valve members are adapted to rotate in unison, preferably through 180 DEG , between a first position in which the lateral openings of both valve members register with the two openings of one of said air ducts and a second position, in which the lateral openings of both valve members register with the openings of the other air duct. The two open ends of each of said air ducts are defined in part by the centrally disposed bearing and drive block.
Patent EP-0216388-A3 (EP)
IPC: B01D53/56
Filed: 1986-09-26
Abstract: Es wird ein Verfahren zur Auswaschung von NO und/oder SO₂ 
aus Abgasen wie z.B. Rauchgasen beschrieben, das mit 
Fe-II-Salzen in nichtwäßrigen Lösungsmitteln arbeitet. 
Das Waschmittel läßt sich nach seiner Beladung einfach 
durch Erwärmung und/oder Drucksenkung regenerieren, wonach 
das Waschmittel wieder einsatzfähig ist. Eine durch Oxidation 
eintretende geringfügige Verringerung der Konzentration 
an Fe-II kann mit einfachen Mitteln ausgeglichen werden. 
Das Verfahren erlaubt es, NO bzw. NO x  allein oder zusammen 
mit SO₂ auszuwaschen. Soll SO₂ allein aus einem Gasgemisch 
ausgewaschen werden, kann der Zusatz von Fe-II-Salzen 
entfallen.
Patent EP-0206604-A3 (EP)
IPC: C01B33/40
Filed: 1986-06-06
Abstract: Water can be removed from an aqueous clay slurry using 
techniques such as filtration wherein the slurry is contacted 
with an anionic polymer having a molecular weight in the range 
from about 3,000 to about 1,000,000. The water is removed 
from the slurry at a rapid rate in order to provide a clay cake.
Patent EP-0208491-A3 (EP)
Title: Hybrid polypeptides and process for their preparation
IPC: C12P21/02
Filed: 1986-06-30
Abstract: Novel circular vectors containing a replicable DNA sequence and DNA sequences encoding all or part of at least two distinct parental polypeptides are disclosed. Such vectors are used in novel processes utilizing in vivo recombination to produce recombined circular vectors containing said replicable DNA sequences and hybrid DNA sequences comprising: (1) a first DNA sequence encoding the amino-terminal portion of a hybrid polypeptide corresponding to a first part of a first parental polypeptide sequence and (2) a second DNA sequence encoding a carboxy-terminal portion of said hybrid polypeptide corresponding to a first part ofa second parental polypeptide sequence. The hybrid DNA sequences of such recombined circular vectors can express novel hybrid polypeptides such as hybrid enzymes in general and in particular hybrid amylases and proteases. Various other processes are disclosed to isolate the recombined circular vector containing said hybrid DNA sequences.
Patent EP-0243551-A3 (EP)
IPC: B65D43/02
Filed: 1986-08-29
Abstract: A cap 61 has a top disc 62 and a cylindrical 
outer skirt 63 depending from the disc. A 
circumferential bead 96 is formed internally on the 
outer skirt and a similar lower bead 101 is formed 
below the upper bead. A circumferential score line 
104 is provided between the beads and a portion 87, 
86 of the outer skirt below the score line is cut 
away to form a pull tab 91 extending parallel to the 
score line. A thickening 88 is provided in line with 
the upper edge of the tab and merging with the lower 
bead. The lower bead engages a co-operating bead 41, 
43 on the neck of the container so that the cap can 
only be removed by pulling the tear tab to sever the 
skirt around the score line thereby removing the 
lower bead of the cap. A frangible link 57 is 
provided between the tab and the skirt to hold the 
tab in position prior to use. The cap provides 
evidence of tampering with the container since 
removal of the cap requires the skirt to be torn.
Patent EP-0242879-A3 (EP)
IPC: G06F9/52
Filed: 1987-04-23
Abstract: A slave processor adapted to execute a read/write oper­
ation in response to a read/write request signal from a master 
processor, comprises a first circuit for performing a write op­
eration during a predetermined period of time from the mo­
ment a first write request signal is made inactive from an 
active condition. An second circuit is provided for generating, 
when another access request signal such as a second write 
request signal or a read request signal is made active during 
the above predetermined period of time, an active wait signal 
requiring the master processor so as to maintain the second 
access request signal in an active condition. The second cir­
cuit also operates to delay an operation indicated by the 
second access request signal.
Patent EP-0244802-A3 (EP)
IPC: C01B33/12
Filed: 1987-05-04
Abstract: The invention relates to modified silica, substituted with a variety of 
substituents. There is provided a product termed primary hydroxyl 
silica where there are attached to the silica substituents bearing a 
single hydroxyl group. Furthermore there are provided a wide variety of 
derivatives of such hydroxy-silica, which are of value in affinity 
chromatography and for various other uses. The products combine the 
thermal and mechanical stability of the silica used as carrier with the 
useful properties of the substituents.
Patent EP-0253119-A3 (EP)
IPC: C08J5/22
Filed: 1987-06-02
Abstract: An ion exchange membrane for electrolysis comprising a 
first layer of a fluoropolymer having carboxylic acid 
groups as its ion exchange groups and facing a cathode, a 
second layer of a fluoropolymer having ion exchange 
groups, a specific resistance lower than that of the first 
layer and a thickness of at least 50% of the total 
thickness of the membrane, and a third layer of a 
fluoropolymer having ion exchange groups, a swelling 
degree higher by at least 5% than that of the second layer 
and a specific resistance lower by at least 30 Ω.cm than 
that of the second layer, the first, second and third 
layers being laminated in this order.
Patent EP-0254121-A3 (EP)
IPC: B65H75/10
Filed: 1987-07-07
Abstract: Der insbesondere als Textilspulenhülse eingesetzte 
Wickelkörper (10) aus mehreren miteinander fest ver­
bundenen Lagen aus wendelförmig gewickelten Bahnen 
weist vorzugsweise auf seiner Außenseite vorzugsweise 
mehrere Lagen auf, die aus Bahnen (13 - 15) gewickelt sind, 
die mit einem Thermoplast- oder Heißschmelzkleber be­
schichtet sind. Durch die beschichteten Bahnen, die heiß in 
den Wickelkörper eingebracht werden, wird eine größere 
Stabilität des Wickelkörpers gegen Radialkräfte erreicht.
Patent EP-0235912-A3 (EP)
IPC: H03M1/10
Filed: 1987-01-26
Abstract: A waveform digitizer includes a sampling 
bridge for producing a sequence of analog samples 
of an input waveform, the samples being calibrated 
by an amplifier having adjustable offset and gain 
and then converted to digital quantities for 
storage in an addressable memory. The digitizer 
also includes memory and time base control circuits 
permitting real and equivalent time sampling of 
repetitive waveforms and logic circuits providing 
hardware averaging of multiple data samples.
Patent EP-0240157-A3 (EP)
IPC: G06K19/06
Filed: 1987-02-27
Abstract: A single transmission line bidirectional optical 
communication system comprises a directional coupler 
(10) including a polarising beam splitter (11) and an 
optical system for separating an optical output signal 
to be outputted to a single transmission line (100) and 
an optical input signal to be inputted from said single 
transmission line. An optical transmitting circuit (20) 
is provided for coding original data (DO) by using a 
clock signal (CKT) of predetermined frequency and for 
subsequently converting the coded data into an optical 
signal by means of a light emitting element (23). An 
optical receiving circuit (30) converts an optical input 
signal into an electric signal, amplifies the electric 
signal, recognises the electric signal through a 
comparator (33) including an automatic threshold 
controlling circuit for automatically setting a 
threshold level at a substantially average value of 
input signal intensities, and subsequently decodes the 
signal to reproduce and output the clock signal and data 
(D1). An optical output controlling circuit (40) 
controls whether or not an optical signal needs to be 
outputted from the optical transmitting circuit (20). A 
frequency discriminating circuit (50) discriminates the 
frequency of the reproduced clock signal (CKR) to output 
a status signal (STC) indicating said frequency. A 
clock controlling circuit (60) determines and outputs 
its own transmission clock frequency (CKT) according to 
 
 
the status signal (STC) coming from the frequency 
discriminating circuit (50) in the state in which no 
optical signal is outputted from the optical 
transmitting circuit (20) under the control of the 
optical output controlling circuit (40), and for 
outputting a status signal (STM) indicating the 
transmission clock frequency.
Patent EP-0294729-A3 (EP)
Title: Ventilation device
IPC: F24F3/00
Filed: 1988-06-04
Abstract: In a process for operating a ventilation device with a housing, which has an intake opening for outside air and an outlet opening for the air supplied to a room, and in which a fan, one or more filters and optionally a heating and/or a cooling device are arranged, under a predefinable outside air temperature, air, heated in the main flow direction directly behind the intake opening (11), is blown into the interior of the housing (1) transversely to the main flow direction and mixed with the outside air in such a manner that, after the mixing zone, an approximately uniform temperature level is achieved across the cross-section of the housing (1). <IMAGE>
Patent EP-0303830-A3 (EP)
Title: Multicast data distribution system
IPC: H04L12/18
Filed: 1988-07-15
Abstract: A data distribution system for the 
timely, efficient and reliable distribution of data to 
an unlimited number of remote receiver installations. 
A data source (100) assembles data packets, and upon filling 
or after the lapse of a predetermined interval of time, 
broadcasts a respective data packet to all receivers (120) 
and recovery means along a communication network. Each 
receiver is intelligent, in that it copies the data 
packets into a buffer and has the responsibility of 
selecting out data needed to perform the receiver's 
intended functions. As a result, intermediate data 
selecting and routing means between the data source and 
receivers are avoided, resulting in data delivery which 
is both rapid and timely. For reliability, each 
receiver monitors the sequence numbers of the data 
packets which have been received and, also, whether a 
data packet is received at least as frequently as the 
predetermined interval of time. Any data packet which 
a receiver determines as missing, can be obtained from 
the recovery means which stores a library of the 
received data packets or which can retrieve the missing 
data packet from the data source.
Patent EP-0311105-A3 (EP)
Title: Sub-ranging a/d converter with flash converter having balanced input
IPC: H03M1/14
Filed: 1988-10-07
Abstract: A 12-bit sub-ranging A/D converter which operates 
through four successive sub-ranging cycles with an 8:1 gain 
change between the cycles. The residue signal for each 
cycle is directed to a four-bit flash converter the output 
of which sets the latches for corresponding bit-current-­
sources of a DAC. The flash converter input circuit com­
prises identical residue and reference amplifiers driving 
symmetrical residue and reference networks for controlling 
the flash converter comparators. The DAC output for each 
cycle is compared with the analog input signal to produce a 
corresponding new residue signal. There are 15 bit-current-­
sources, three for the first cycle, and four for each of 
the last three cycles. The MSB of each group of four bit-­
current sources is an overlap bit having the same current 
weighting as the LSB of the preceding group. Setting of 
the overlap bit makes it possible to develop a correct 
output for the DAC for each of the 2nd through 4th cycles 
without altering bits already determined in previous cycles. 
The converter provides an optional 5th cycle making possi­
ble a 14-bit output or an increased yield of 12-bit con­
verters.
Patent EP-0311995-A3 (EP)
Title: Power saving circuitry
IPC: H05B41/392
Filed: 1988-10-12
Abstract: Power saving circuitry is provided for use with 
fluorescent lights, inductive loads and resistive loads. The 
circuitry comprises a power circuit connectable to an alternating 
circuit power supply and a control circuit. The power circuit 
includes a bilateral switch, and the control circuit includes 
means for timing the operation of the bilateral switch so that 
the switch conducts current for a predetermined time during each 
half-cycle of the power supply which terminates at a 
predetermined intervals before the end of each half cycle. A 
preferred embodiment of the power saving circuitry, adapted for 
use with fluorescent lights or inductive loads such as electrical 
motors, also comprises a Back-EMF suppressor circuit. The 
bilateral switches are preferably made up of one or more 
unilateral switch devices such as field effect transistors. The 
subject circuitry reduces power consumption while at the same 
time providing for a power factor correction.
Patent EP-0329839-A3 (EP)
IPC: H01J31/12
Filed: 1988-12-06
Abstract: Die Erfindung bezieht sich auf eine flache 
Bildwiedergabevorrichtung mit einer nach außen gewölbten 
oder durch den atmosphärischen Druck nach innen 
gebogenen Frontscheibe (1), die eine ebene 
Ablenkanordnung (8) zum Ablenken der Elektronenstrahlen 
(13, 14) in jeder Zeile aufweist. Um ein farbreines Bild 
zu erhalten, werden die Ablenkspannungen entsprechend 
dem jeweiligen Abstand zwischen der Ablenkanordnung (8) 
und der Frontscheibe (1) so korrigiert, daß die 
Elektronenstrahlen (13, 14) nur auf den jeweiligen 
äquidistanten Leuchtstoffpunkten oder -streifen (4) 
landen. Die Formel zur Berechnung des Korrekturfaktors 
(K) wird angegeben.
Patent EP-0308254-A3 (EP)
IPC: G11B5/31
Filed: 1988-09-16
Abstract: Disclosed is a magnetic disk memory having a 
magnetic disk (1) and a magnetic head device (3) adapted to 
record and/or reproduce information using the magnetic 
disk as a medium. The magnetic head device is composed 
of a plurality of magnetic heads (11a, 11b,11c,11d) 
rigidly mounted on one 
slider (10), these plurality of magnetic heads being arranged 
in the radial direction of the magnetic disk.
Patent EP-0309414-A3 (EP)
Title: Chewing gum having antitartar activity
IPC: A23G4/00
Filed: 1988-08-26
Abstract: A chewing gum composition endowed with antitartar activity is disclosed, 
the composition comprising a chewing gum base and an amount of an active 
principle sufficient to induce an antitartar effect, the active 
principle being selected from the neutral and acidic alkali and 
alkaline-earth metal polyphosphates (particularly the pyrophosphates and 
metaphosphates) and the alkaline-earth metal citrates and malates, and 
mixtures thereof.
Patent EP-0297089-A3 (EP)
Title: Support for an advertisement board, price sign or similar devices
IPC: G09F3/20
Filed: 1988-06-24
Abstract: The support (2) described is, for example, in the form of a plug-in panel which has a rear wall (3), onto whose front the sign is to be, or is, attached and on which at least two snap-locking or snap- connection parts (8; 11, 12) are provided which are integral therewith, arranged symmetrically relative to an axis and mutually complimentary, in such a manner that two identical supports (2) with their backs facing each other can be directly connected to each other; in this arrangement at least one of the snap-locking or snap- connection parts projects to the rear, at least in the working position, from the rear wall (3) and particularly from a tab or tongue (9) which can be resiliently swung out from the rear wall (3).   <IMAGE>
Patent EP-0342335-A3 (EP)
Title: Process for enrobing or glazing roofing tiles process for enrobing or glazing roofing tiles
IPC: B28B11/04
Filed: 1989-03-23
Abstract: Process for engobing or glazing of roof tiles which, placed upon a ceramic substrate, are dried and fired, the roof tiles being engobed or glazed after drying while remaining on their substrate, by covering them with a screen having a cut-out which is smaller than the surface area of the tile to such an extent that the substrate is screened from the engobing or glazing jet, but the roof tile is glazed or engobed with clean edges. <IMAGE>
Patent EP-0337315-A3 (EP)
Title: System and method for collating book and pamphlet signatures and the like
IPC: B65H39/055
Filed: 1989-04-07
Abstract: According to the invention stations (2) are provided in a signature collating system which are adapted to deliver signatures (3), as well as a transport (4) adapted to pick up the signatures (3) to form stacks (5), a diverting device (7) located downstream from the stations (2) and adapted to controllably convey the stacks (5) out of the transport (4), a reclaim belt (9a) extending from the diverting device (7) to a position of the transport (4) upstream of the stations (2), a signature (3) withdrawal station (9b) located on the reclaim belt (9a) and comprising a pull-out means (12) adapted to remove signatures (3) from the stacks (5), and a monitoring means (6) adapted to detect anomalies in the delivery of the signatures (3) and the positions of the stacks (5), and adapted to control the activation and deactivation of the stations (2), diverting device (7), and withdrawal station (9b).
Patent EP-0339661-A3 (EP)
Title: Photochromic substances
IPC: C09B11/24
Filed: 1989-04-27
Abstract: A photochromic compound which has a conventional spirooxazine skeleton is described. 
<??>According to the invention, conjugated diazole-naphthoxazine or oxazole, thiazole, benzoxazole or benzothiazole systems have undergone addition at the skeleton. 
<??>This results in improved absorption in the wavelength range > 350 nm and improved migration properties.
Patent EP-0356854-A3 (EP)
Title: Treatment of inorganic salts contaminated with organic compounds
IPC: C01D17/00
Filed: 1989-08-19
Abstract: Inorganic salts contaminated with relatively 
high boiling organic chemical contaminants are removed 
by washing the contaminated salt with a solvent which 
has a boiling point below the organic chemical 
contaminant, removing the salt from the wash solvent and 
drying the thus treated inorganic salt. This method is 
particularly suitable in the treatment of the alkali 
metal halide produced in the manufacture of epoxy 
resins.
Patent EP-0370334-A3 (EP)
Title: Butt or corner joint of frame parts
IPC: F16B12/04
Filed: 1989-11-10
Abstract: In the butt or corner joint of frame parts, in particular made of solid wood, which are joined together in contact surfaces, a connecting element engages, bridging the contact plane, in recesses which extend into the frame parts from the contact surfaces. These recesses are designed as grooves (19, 20; 39, 40; 48, 49) which are made, starting from the same side edges, in the frame parts (11, 12; 31, 32; 45) transversely to their longitudinal extension. The connecting means is a joint tongue (13, 42) which is pressed into the grooves, from said side edges, transversely to the longitudinal extension of the frame part. <IMAGE>
Patent EP-0374925-A3 (EP)
Title: High density graphite fiber and method of manufacture thereof
IPC: D01F9/22
Filed: 1989-12-21
Abstract: A graphite fiber derived from an acrylic fiber 
having a fiber density of not less than 1.93 g/cm³, a 
strand tensile strength of not less than 350 kgf/mm², 
and a strand tensile modulus of not less than 53×10³ 
kgf/mm², and a method for producing the grpahite fiber 
by carbonizing a preoxidized fiber derived from an 
acrylic fiber and having a fiber density of from 1.32 to 
1.40 g/cm³ to obtain a carbon fiber having a nitrogen 
content of not less than 1.0% by weight based on the 
carbon fiber weight, a fiber density of not less than 
1.79 g/cm³ and an orientation of not less than 79% at a 
maximum diffraction at 2ϑ=25.3±0.5° in X-ray diffraction 
angle of the (002) plane of the graphite crystal, and 
graphitizing the thus-obtained carbon fiber in an inert 
gas at a temperature of not lower than 2,400°C and under 
a tension to stretch the fiber at least 3% during the 
graphitization.
Patent EP-0372656-A3 (EP)
IPC: C08G64/02
Filed: 1989-12-05
Abstract: Linear alternating copolymers derived from units (A) of 
1,6-di(4-oxyphenyl)-1,6-diazaspiro[4.4]nonane-2,7-dione and units 
(B) selected from carbonyl, phenylene-dicarbonyl, carbonyl-di­
phenylene and cyanophenylene.
Patent EP-0326312-A3 (EP)
Title: Electronic wrist watch
IPC: H02K21/18
Filed: 1989-01-24
Abstract: An electronic wrist watch comprising an electrical 
power source (2) for driving time indicating means (10,11) 
characterised in that the electrical power source (2) is 
arranged to be electrically charged by an oscillatable weight 
(15) and converter means (16-21) for converting mechanical 
energy obtained from the oscillatable weight (15) into electrical 
energy for transmission to the electrical power source (2).
Patent EP-0347101-A3 (EP)
IPC: A61B5/083
Filed: 1989-06-08
Abstract: A non-invasive apparatus (10) for continuously measur­
ing the cardiac output and cardio-respiratory function 
includes a gas sampling device which is inserted into 
the mouth of a human subject. The gas sampling device 
may be a disposable endotracheal tube (11) or a smaller 
disposable mouthpiece (143). Each of these gas sampling 
devices is provided with a plurality of passages for 
sampling the lung gases and for continuously sampling 
the gas pressure on opposite sides of a capillary 
restriction member (27). A miniature motor pump mass spec­
trometer module (12) is mounted on the upper end of the 
endotracheal tube or mouthpiece. Electronic circuitry (160) 
connected to the mass spectrometer permits constant 
visual monitoring of the cardiac output and cardio-­
respiratory function.