baber/WOPTO huggingface dataset:
Patent EP-0315962-A3 (EP)
Title: System for damping lead-lag motion of rotor blades of helicopter
IPC: B64C27/51
Filed: 1988-11-09
Abstract: A helicopter rotor blade supported by a 
flexbeam (2) to be rotatable about an axis of rotation, 
in which a pitching motion thereof is allowable, is 
provided with a device (6) for changing the pitch and 
damping the lead-lag motion thereof. The device (6) 
comprises a bushing (13) in a through hole (2a) formed 
at the inboard end of the flexbeam (2), an elastomeric 
pivot (7) loosely fitted in the bushing, elastomeric 
dampers (9) of cylindrical shape mounted on the upper 
and lower surfaces of the flexbeam (2) and coupled with 
the upper and lower ends of the elastomeric pivot (7) 
by means of nuts (8), and torque arms (12) extending 
through the bushing and the elastomeric dampers (a) and 
having the central portion thereof connected to central 
shafts (7a) of the elastomeric pivots (7). Each of the 
pitch sleeve (12) has both ends outwardly projecting 
beyond the elastomeric dampers (9) and secured to a 
epitch sleeve (3) which encloses the flexbeam (2). 
Therefore, the relative position between the pitch 
sleeve (3) and the elastomeric pivot (7) does not 
change even when lead-lag motion is imparted to the 
rotor blade.
Patent EP-0281210-A3 (EP)
Title: Process for preparing vinyl chloride polymer
IPC: C08F14/00
Filed: 1988-03-04
Abstract: A process for preparing a vinyl chloride polymer 
by polymerizing vinyl chloride, or vinyl monomers 
containing vinyl chloride, through a suspension 
polymerization in an aqueous medium; wherein an 
antioxidant dispersion comprising an antioxidant, a 
suspending agent and water is added to the above 
polymerization system.  
     This process makes it possible to automatically 
charge the antioxidant to the polymerization system. The 
vinyl chloride polymer obtained is excellent in storage 
stability, thermal stability and plasticizer absorption 
performance.
Patent EP-0321014-A3 (EP)
Title: A process for beneficiation of coal by selective caking
IPC: B03B1/04
Filed: 1988-11-29
Abstract: A process is disclosed for beneficiation of coal by selective caking, in which process a caking mixture is employed consisting of: - one or more solvents selected among the light hydrocarbons having boiling points not higher than 70 DEG C; - one or more non-ionic additives selected among oil-soluble propoxylated or propoxylated-ethoxylated phenolic or alkylphenolic compounds; - possibly one or more heavy co-caking agents selected among coal-derived oils having boiling points between 200 DEG C and 400 DEG C, or the residual products of petroleum refining, or mixtures thereof.
Patent EP-0287295-A3 (EP)
IPC: G06F15/16
Filed: 1988-04-11
Abstract: A method for performing an input/output process 
containing a programmed input/output (PIO) 
instruction in a multiprocessor system including at 
least two processors each having an associated I/O 
bus with I/O devices connected thereto. The method 
comprises the steps of storing a unique address and 
a bus location for each I/O device in a device 
location table, determining the address of a 
referenced I/O device prior to performing the PIO 
instruction, reading the corresponding I/O bus 
location of the referenced I/O device from the 
device location table and executing the input/output 
process on the prescribed processor associated with 
the I/O bus to which the referenced I/O device is 
located. The method is used in conjunction with a 
task scheduler including a process control block for 
each scheduled process. When the PIO instruction 
references a device on the local I/O bus, the 
input/output process is executed normally. To 
execute the input/output process on a remote 
processor, a locked descriptor identifying the 
remote processor is placed in the process control 
block for that process. The input/output process is 
then scheduled for execution on the remote processor.
Patent EP-0314508-A3 (EP)
Title: Optical communications apparatus
IPC: H04B10/213
Filed: 1988-10-28
Abstract: A light sending device (12) for an optical communications 
apparatus comprises first and second pairs of branching 
optical fibers (19, 20). The first branching optical 
fibers have respective ends (20c, 20d) for coupling with 
different ends of a light transmitting optical fiber 
(11). The light transmitting optical fiber (11) forms 
part of the optical communications apparatus. The other 
end of the first branching optical fibers are located at 
a light sending portion (17) of the light sending device. 
Respective ends of each of the second branching optical 
fibers are coupled to respective ends of the optical 
fiber (11). The other end of the second branching optical 
fibers are located at a photosensitive element (13) for 
receiving light signals transmitted by the optical fiber 
(11) and for passing through a portion of the received 
light signal so that the part of the signal is transmitted 
through the light sending device. An amplifier (14) is 
provided for amplifying part of the signal received by 
the photosensitive element (13) and for driving the 
light sending portion (17) so as to amplify the signals 
received from the light transmitting optical fiber (11).
Patent EP-0320500-A3 (EP)
Title: Non-oncogenic ti plasmid vector system and recombinant dna molecules for the introduction of expressible genes into plant cell genomes
IPC: C12N15/82
Filed: 1983-12-22
Abstract: Described is a non-oncogenic Ti plasmid vector system and 
recombinant DNA molecules for the introduction of 
expressible genes into plant cell genomes. Furthermore, 
corresponding transformed  Agrobacterium  strains and 
processes for the production of plant cells and plants 
containing foreign DNA sequences are described. (Fig. 10)
Patent EP-0339232-A3 (EP)
Title: Fiber impregnation process and impregnated fiber formed thereby
IPC: D06M11/73
Filed: 1989-03-14
Abstract: A method of producing a low cost impregnated and coated fiber useful in forming pump, valve, expansion joint, hydraulic cylinder and similar packings capable of resisting high caustic concentrations is provided. In accordance with this method a relatively low cost yarn, such as rayon, is simultaneously subjected to a spreading operation and passed through a highly alkaline tetrafluoroethylene (TFE) solution. As the yarn fibers are spread from a fiber bundle to a flat ribbon-like array of spaced parallel fibers, the fibers swell or "balloon" thus allowing the TFE to completely penetrate the interior of each fiber. A subsequent coating step insures that the exterior of each fiber is completely coated with the TFE solution. Fibers produced according to the present process are characterized by substantially lower cost than available materials, are completely caustic resistant at a pH approaching or exceeding 14, and have a long, useful service life in a variety of different environments.
Patent EP-0339243-A3 (EP)
IPC: H01B7/06
Filed: 1989-03-16
Abstract: Die von einem gemeinsamen Außenmantel umgebenen Leiter einer 
flexiblen Leitung sind wenigstens im Bereich des Leitungsendes so 
angeordnet, daß sie nebeneinander in einer Reihe liegen und am 
Leitungsende kreusungsfrei mit ihnen zugeordneten Kontaktelementen eines 
Steckverbinders verbindbar sind. Der Außenmantel ist so ausgebildet, daß 
er eine von den in einer Reihe nebeneinander angeordneten Leitern 
gebildete Querschnittsfläche wenigstens annähernd zu einer kreisförmigen 
Querschnittsfläche ergänzt.
Patent EP-0341743-A3 (EP)
Title: Alignment of mask and semiconductor wafer using linear fresnel zone plate
IPC: G03F9/00
Filed: 1989-05-12
Abstract: A system for aligning a mask (24) and a 
semiconductor wafer (20) comprises radiation source (25) 
for producing a radiation beam (25a), a dual focus 
linear Fresnel zone plate (24a) provided on the mask for 
focusing the radiation beam incident thereto on a 
surface of the semiconductor wafer which comprises a 
first part (I) having a first focal length and a second 
part (II) having a second focal length substantially 
smaller than the first focal length, a diffraction 
grating (20a) provided on the surface of the 
semiconductor wafer in correspondence to the dual focus 
linear Fresnel zone plate for diffracting the radiation 
beam focused thereon, a detector (27) held with a 
predetermined relationship with respect to the radiation 
source and the mask for detecting a diffracted beam 
(25b), a movable stage (22) for supporting the 
semiconductor wafer movably, and a controller (23) for 
moving the stage means responsive to an output signal of 
the detection means.
Patent EP-0344791-A3 (EP)
Title: Process for the enzymatic resolution of the optical isomers of racemic ester derivatives of 3-mercapto-2-alkyl-propionic acid
IPC: C12P11/00
Filed: 1989-06-01
Abstract: A process is disclosed for the biotechnological resolution 
by means of stereoselective enzymatic thio-transesterification 
of racemic mixtures of compounds of the formula (I): 
  
wherein:  
R, R′ and R″, the same or different from each other, repre­
sent linear C₁₋₄-alkyl groups;  
in the presence of an enzyme capable of selectivity causing 
the thio-transesterification reaction of the (L)-isomer to 
take place, leaving the (D)-isomer substantially unchanged.
Patent EP-0350029-A3 (EP)
Title: Biconvex polymer lenses and their production and use
IPC: B29D11/00
Filed: 1989-07-06
Abstract: The invention relates to biconvex lenses made from 
synthetic polymer which have the shape of a drop of a 
lighter liquid freely resisting on the surface of a heavier 
liquid immiscible with the lighter liquid, while the 
surface tension of the heavier liquid saturated with the 
lighter liquid in air is smaller than the sum of the 
surface tension of the lighter liquid saturated with the 
heavier liquid in air and the surface tension at the 
interface of both liquids being in mutual equilibrium.  
     The lenses are produced in such a way, that a drop of a 
polymerizable lighter liquid comprising one or more mono- 
and/or multifunctional monomers and a polymerization 
catalyst, and eventually an inert diluent, is applied on 
the surface of a heavier liquid, and then the monomers of 
the polymerizable lighter liquid are polymerized.
Patent EP-0353767-A3 (EP)
Title: Detecting sector servo information in a disk system
IPC: G11B21/10
Filed: 1989-08-04
Abstract: A sector servo method of detecting sector servo 
information in a disk system, wherein the sector servo 
information comprises at least one auxiliary confirming 
code pattern in addition to conventionally used sector 
mark, track address and servo position information. 
Generation of a group of timing signals to detect a 
selected portion of the sector servo information is 
adjusted, such that the timing signal is synchronous with 
the selected portion of the sector servo information, by 
detecting the auxiliary confirming code pattern. 
Synchronisation is performed by loading a predetermined 
number into counter circuit means when the auxiliary 
confirming code pattern is detected. Disk system apparatus 
operable under this method is provided.
Patent EP-0353786-A3 (EP)
Title: Manufacture of polyurethane foam
IPC: C08G18/00
Filed: 1988-09-21
Abstract: Substantially water blown flexible polyurethane foams, based on methylene diphenyl isocyanates, having a density ranging from 15-25 kg/m<3>. Such foams may be obtained through a process substantially avoiding halocarbon blowing agents, which comprises reacting methylene diphenyl isocyanates with water and one or more isocyanate-reactive compounds selected from polyols and polyamines with a functionality of 2-4 and an average equivalent weight ranging from 750-5000, while the isocyanate index ranges from 10 to 60, and weight ratio of the isocyanate-reactive compound(s) to water is less than 20.
Patent EP-0358240-A3 (EP)
Title: Intermediates for the preparation of leukotriene antagonists
IPC: C07D233/84
Filed: 1986-04-14
Abstract: Intermediates of structure: <CHEM> wherein Y is CO2R10 or CH(R12)CO2R10 in which R10 is an ester protective group and R10 is hydrogen, methyl, methoxy or fluoro, and their use for the preparation of leukotriene antagonists.
Patent EP-0366104-A3 (EP)
Title: Conveyor device in the shape of a dispatch station for a pulverulent or powdery material
IPC: B65G53/14
Filed: 1989-10-25
Abstract: It is envisaged here to provide a modular-type construction for a despatch station for all areas of use. In this connection, a tubular element is arranged which has an integrated nozzle for delivering the conveying medium in the form of compressed gas. Downstream of the nozzle is arranged a constriction in order to produce an acceleration. The inlet region of the arrangement is designed as a permeable region for a material fluidisation by means of delivered conveying medium. <IMAGE>
Patent EP-0370277-A3 (EP)
IPC: H04B1/66
Filed: 1989-10-31
Abstract: Das Frequenzband (FB) eines digitalen Tonsignals (TS) wird in 
einer Codiereinrichtung (CE) durch Quadratur-Mirror-Filter 
(QMF) in Subbänder (SB1 bis SB7) aufgeteilt, wobei in den ein­
zelnen Verarbeitungszweigen Coder (C0) zur Datenreduktion vor­
gesehen sind. Im Signalzweig des Subbandes (SBH, SB7), in dem 
der höchste Frequenzbereich 12-24 kHz des Tonsignals (TS) über­
tragen wird, ist ein erstes Filter (F1) zur Bandbegrenzung 
12-15 kHz und ein erster Taktratenkonverter (TC1) zur Reduzie­
rung der Datenrate angeordnet. In einer empfangsseitigen De­
codiereinrichtung wird aus den in den Subbändern (SB1 bis SB7) 
übertragenen Subbandsignale in weiteren Quadratur-Mirror-Fil­
tern (QMF) ein bandbegrenztes Tonsignal (TSB) zusammengesetzt.
Patent EP-0326298-A3 (EP)
Title: Fast curing binder for cellulose
IPC: D04H1/64
Filed: 1989-01-20
Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group, which is reacted with a primary or secondary amide of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier which has been formulated with a non-formaldehyde forming reactive monomer to produce binder compositions which reach substantially fully cured wet strength in 8 seconds or less.
Patent EP-0335483-A3 (EP)
Title: Condensed imidazole derivatives, process and intermediates for their preparation and pharmaceutical compositions containing them.
IPC: A61K31/4166
Filed: 1989-02-06
Abstract: Compounds of structure (I) 
  
in which, R¹ is hydrogen, C₁₋₄alkyl, CHR⁶CONHR⁷ or 
CHR⁶COOR⁷ in which R⁶ and R⁷ are each hydrogen or 
C₁₋₄alkyl; R² is hydrogen, C₁₋₅alkyl or a residue R² of 
an amino acid R² CH(NH₂)COOH; R³ is hydrogen, C₁₋₄alkyl, 
CONH₂ or CO₂R⁸ in which R⁸ is hydrogen or C₁₋₄alkyl; 
and n is 2, 3 or 4, processes for their preparation, 
intermediates useful in their preparation, pharmaceutical 
composition containing them and their use in therapy as 
nootropic agents.
Patent EP-0331456-A3 (EP)
Title: Flame-retardant polybutylene terephthalate resin composition and molded article for electrical component
IPC: C08L67/00
Filed: 1989-03-01
Abstract: A resin composition comprises a polybutylene 
terephthalate, a halogenated bisimide having the formula 
(1) and a polytetrafluoroethylene resin and is improved in 
flame retardancy and at the same time moulding 
properties. It is useful for parts of electric 
instruments.
Patent EP-0337800-A3 (EP)
Title: Dampening and inking system for a printing press
IPC: B41F7/40
Filed: 1989-04-14
Abstract: A water and ink dispenser for a rotary printing press 
includes a metering roll (16) that is driven by a gear train 
directly from the printing cylinder (12), the gears 
(12a,14a,16a) of the gear train each being rotatable on an 
axis fixed relatively to the axis of rotation of each other 
gear, in order to avoid chatter and noise in the gear train. 
A form roll (14) of the device is adjustable in its axial 
spacing from the printing cylinder (12) and metering roll 
(16) entirely independently of said gear train, by mounting 
the Form roll support shaft (58) to be eccentrically 
rotatable about an axis coincident with the axis (64)) of an 
idler gear (14a) connecting a drive gear (12a) on the 
printing cylinder (12) to a driven gear (16a) on the 
metering roll (16). The object is to eliminate scuffing 
and gear marking and gear marking of prints.
Patent EP-0351233-A3 (EP)
IPC: G06F17/30
Filed: 1989-07-14
Abstract: A system includes one or more databases, a 
terminal for use by a user and a processor. The 
databases store data and retrieve the stored data in 
response to the receipt of a data retrieval request from 
the processor. The terminal generates an input screen 
and an output screen. The input screen displays, for 
the user, data selection criteria identifiers which the 
user may select to identify data of interest, and 
functions for processing the data as desired by the 
user. The output screen displays the processed data. 
The processor generates, in response to the selected 
data selection criteria from said terminal, a data 
retrieval request for processing by the databases. Upon 
receipt of the retrieved data, the processor processes 
the retrieved data as called for by the selected 
function selection criteria to generate processed data, 
which the processor transmits to the terminal for 
display on the output screen. In a refinement, the 
processed data is identified by a data type, and said 
processor selecting a display type, for example, a line 
graph, bar graph, or other, based on the data type of 
the processed data, by which the output screen displays 
the data.
Patent EP-0367409-A3 (EP)
Title: Method of producing a foamed polymer
IPC: C08J9/10
Filed: 1989-10-04
Abstract: A process for producing a foamed polymer, particularly 
a foamed polyofefin, of highly uniform low density.  
     A mixture of a polymer-forming material, a 
cross-linking agent, and a blowing agent is placed in 
a mould and reacted. This reaction product is cooled 
until the differential temperature between core and 
surface is below a predetermined maximum, and removed 
from the mould.  
     The cooled product is then subjected to dielectric 
heating, preferably by microwave irradiation, to cause 
uniform heating and highly uniform expansion to 
produce a foamed polymer of highly uniform low 
density.  
     The process of the invention enables production of 
relatively thick foamed polymers with a uniformity of 
density not possible with conventional foaming 
processes wherein high differential temperatures lead 
to non-uniform densities and distortions of the foamed 
product. The process of the invention also avoids the 
serious problems with excessive pressures encountered 
in attempting to produce highly foamed polymers in 
single-stage processes carried out entirely in closed 
moulds.
Patent EP-0364190-A3 (EP)
IPC: H04B7/08
Filed: 1989-10-09
Abstract: In an antenna-selection diversity transmission and 
reception equipment (10) which is in digital communication 
with a transmission and reception equipment (16) having a 
single antenna (17), and performs transmission and reception 
with time division by using the same radio frequencies, the 
antenna-selection diversity transmission and reception 
equipment (10) comprises a plurality of antennae (11, 12), a 
receiving part (15) having receiving means (61, 62), comparing 
means (63) and selecting means (64, 65) which are adapted for 
a receiving-antenna selection diversity, and a transmitting 
part (14) having memory means (52) for storing antenna 
information that was selected by the receiving part (15). An 
antenna for transmission is selected from the plurality of 
antennae (11, 12) at the time of transmission in accordance 
with the information of the memory means (52).
Patent EP-0366309-A3 (EP)
Title: Colour image quantization system
IPC: H04N1/64
Filed: 1989-10-12
Abstract: A color image quantization system is described which utilises a 
look up table into which representative color data is loaded. This data 
is determined by repeated division of original color space into K 
child-color spaces, K being equal to the number of addresses to the LUT. 
The order of division is dependent upon the frequency of original image 
pels whose colors lie in each color space. Utilising the system, the 
number of pels assigned to each color space becomes as nearly equal as 
possible and image quality is maintained.
Patent EP-0379172-A3 (EP)
Title: Epoxy resin composition and semiconductor sealing material comprising same
IPC: C08G59/40
Filed: 1990-01-17
Abstract: Disclosed is an epoxy resin composition 
comprising, as basic components, (A) an epoxy resin, (B) 
a phenol-novolak resin, (C) a curing promotor and (D) a 
filler. Pulverized or spherical silica having specific 
particle size characteristics is used as the filler (D). 
Preferably, a halogenated epoxy resin and antimony oxide 
are further incorporated in this epoxy resin. This 
epoxy resin composition shows a very small molding 
shrinkage. If a dialkylurea derivative is used as the 
curing promotor (C), the stability of the composition at 
about 100°C is drastically improved and the flowability 
of the composition is improved. Accordingly, precision 
injection molding becomes possible, and the effect of 
sealing a semiconductor is enhanced.
Patent EP-0387839-A3 (EP)
Title: Msk signal detector
IPC: H04L27/14
Filed: 1990-03-14
Abstract: An MSK signal detector uses a limiter to convert an 
input signal to a signal with only two levels. A transition 
interval decision and memorizing circuit decides whether 
intervals between transitions between these levels fall into 
windows centered at the half-period of the MSK space 
frequency and the half-period of the MSK mark frequency, or 
a window centered midway between these two. An MSK decision 
circuit tests the pattern of decision results to detect 
patterns corresponding to MSK input. Output from the MSK 
decision circuit is low-pass filtered and thresholded to 
produce an MSK detect signal indicating the presence of MSK 
input. A compact, low-power circuit structure is 
achievable. The circuit can be adapted for quick preamble 
detection by simple modifications to the MSK decision 
circuit and low-pass filter.
Patent EP-0394664-A3 (EP)
IPC: H01L29/84
Filed: 1990-03-19
Abstract: A piezo-resistive pressure sensor element (20) is formed 
in the front face (26) of a silicon wafer (12). A thin 
diaphragm (16) is formed under the sensing element (20) by 
anisotropically etching a cavity (14) from the rear face (23) 
of the wafer (12). The rear face (23) (cavity-side) rupture 
pressure of the silicon diaphragm (16) is at least doubled by 
subjecting the anisotropically etched cavity (14) to a mild 
isotropic etch. This substantially improves the cavity-side 
over-pressure rating of the finished pressure sensor (10) 
without any significant change in the device sensitivity or 
allows higher sensitivity to be obtained for the same over-­
pressure rating or intermediate combinations thereof.
Patent EP-0399236-A3 (EP)
Title: Single input, single supply three-state controller
IPC: H02P7/00
Filed: 1990-04-26
Abstract: A circuit for controlling three modes of operation 
of a multiple terminal load using a single positive DC 
voltage 12, simple circuitry, two relays 26, 30 and a 
single input control line 17. The circuit senses a 
switch 16, or logic device generating three conditions: 
open circuit, connection to positive voltage or 
connection to ground. Three operating modes are 
effected while minimizing the number of wires needed to 
control the multiple terminal load.
Patent EP-0395100-A3 (EP)
IPC: D06M15/256
Filed: 1990-04-27
Abstract: A water and oil repellent composition containing, as 
an essential component, non-film-forming fine solid 
particles having a low surface tension and having a 
fluorine content of at least 30% by weight.