baber/WOPTO huggingface dataset:
Patent EP-0136056-A3 (EP)
Title: A collapsible push chair
IPC: B62B7/08
Filed: 1984-08-21
Abstract: First and second moulded plastic structural components, respectively comprising a back rest portion (1) with integral front legs (3, 3) and a seat portion (2) with integral rear legs (4, 4), are connected for pivotal movement about a first horizontal axis (7) with the second structural component (2 and 4, 4) disposed between the front legs (3, 3) of the second structural component (2, 4 and 4). An inverted 'U'-shaped handle member (5 and 6, 6) has a cross-piece (5) and two side shafts (6, 6) respectively connected to opposite sides of the back rest member (2) for pivotal movement about a second parallel horizontal axis (8). Links (11) extend respectively between the rear legs (3, 3) and the side shafts (6, 6) for pivotal movement about third and fourth parallel horizontal axes (12 and 13). Stops (9) formed integrally in the sides of the back rest portion (1) and releasable hooks (10) are provided for holding the side shafts (6, 6) in a first position in which they extend away from the front legs (3). The links (11) cause the push chair to collapse when the side shafts (6, 6) are folded from their first position to a second position in which the front legs (3, 3) and the side shafts (6, 6) lie along opposite sides of the rear legs (4, 4).
Patent EP-0149908-A3 (EP)
IPC: F16J15/00
Filed: 1984-12-17
Abstract: A seal assembly is arranged to contain and recycle 
leakage of hydraulic working fluid passing from a working 
chamber (65) between a wall opening (38, 39) and a 
penetrant rod portion (14) passing through the opening. The 
seal assembly includes a sliding-seal member (75) mounted 
on a portion of the rod for sliding movement toward and 
away from an abutment surface (69) and a non-sliding 
flexible-seal member (bellows 78) arranged between the 
body and the sliding-seal member. The body, flexible-seal 
member, sliding-seal member and rod define a sealed 
chamber (90) into which such fluid will leak. In the embodi­
ment shown, a spring (76) urges the sliding-seal member 
(75) to move toward an abutment surface (69) provided on 
the rod. In another embodiment, movement of the sliding-­
seal member relative to the body is limited by facing 
abutment steps on the body.  
     The invention gives a long life and a low leakage rate 
especially to actuators which operate cyclically for long 
periods.
Patent EP-0115983-A3 (EP)
Title: Filtre spatial d'ondes électromagnétiques de polarisation circulaire, et antenne Cassegrain comportant un tel filtre
IPC: H01Q19/195
Filed: 1984-01-24
Abstract: Filtre spatial d'ondes électromagnétiques de polarisation 
circulaire comprenant trois réseaux conducteurs parallèles 
(15, 16 et 17), le réseau central (16) étant totalement réfléchis­
sant pour une polarisation rectiligne de direction donnée et pré­
sentant un coefficient de réflexion non nul pour une polarisa­
tion rectiligne de direction perpendiculaire à la précédente.  
     Utilisation dans une antenne du type Cassegrain.
Patent EP-0149440-A3 (EP)
IPC: C21C5/46
Filed: 1984-12-05
Abstract: On dispose autour de la lance à oxygène des gicleurs (6) 
de pulvérisation qui sont protégés par des boítiers (25) isolés 
et alimentés en permanence par de l'air de refroidissement.  
     Les gicleurs sont également alimentés en permanence 
par de l'air comprimé destiné à empêcher que les gicleurs ne 
se bouchent pas de l'extérieur vers l'intérieur.
Patent EP-0154452-A3 (EP)
Title: Process for the preparation of phenolic foam
IPC: B29K61/04
Filed: 1985-02-21
Abstract: The present invention relates to a process and an apparatus for producing phenolic foam laminates with improved surface appearance. The process involves applying pressure on the foam forming mixture through one of its facings by a flexible member. The member is sufficiently flexible to allow continual rise of the foam but also smoothes out any uneven rise under the applied pressure thereby producing a laminate which has a surface immediately below the facing substantially free of any voids, craters or wrinkles.
Patent EP-0186475-A3 (EP)
IPC: C08L23/10
Filed: 1985-12-20
Abstract: Physical properties of filled polypropylene compositions 
are improved by using a calcium carbonate filler of bimodal 
particle size, e.g., a mean of 2 microns and a mean of 5 
microns, and a polysiloxane additive. The compositions are 
useful as food containers.
Patent EP-0201766-A3 (EP)
Title: Electrical filter operating with acoustical waves
IPC: H03H9/02
Filed: 1986-04-22
Abstract: A surface wave filter (1, 11, 21, 31, 41) having a shielding structure (13, 23, 33, 43, 53) arranged between the inter-digital, asymmetrically operating structures (2, 3), which encompasses two such sub-structures (14, 24, 34, 44, 44a) and/or (15, 25, 35, 45, 35a), which are individually connected with the finger structures of the adjacent transducer structure (2 and/or 3) that are at reference ground potential.
Patent EP-0219610-A3 (EP)
Title: Mould for producing grid plates for lead accumulators
IPC: B22D25/04
Filed: 1986-06-30
Abstract: A casting mold for manufacturing grid plates for lead batteries makes use of easily interchangeable mold inserts for each half of a two-part, external metallic mold holder. The mold inserts are made of a highly porous microfiber nonwoven material, and render unnecessary the conventional cork-flour coating of casting molds due to good thermal insulating properties, high permeability to air and non-wettability by lead. The casting mold inserts are manufactured in a process which involves fixing of the nonwoven material with a curable binder either during or after shaping of the negative for the grid plate, so that the resulting parts assume a cardboard-like consistency.
Patent EP-0228666-A3 (EP)
IPC: C12Q1/56
Filed: 1986-12-18
Abstract: The subject matter of the invention is 
a peptide-based compound for utilization in the 
assay of endotoxin in samples by an LAL-type analysis 
method. The structure of the compound 
has the form:  
X - A1 - A2 - A3 - B - R  
in which X is hydrogen or a protective aromatic 
hydrocarbon or acyl group; A1 is a peptide chain 
consisting of 0-100 amino acids; A2 is glycine; 
A3 is arginine; B is an amide mixture and R is 
a molecule which, after its liberation in the LAL-­
type analysis, can be identified by diazotizing 
its liberated amine group and allowing it to react 
with a compound with which it combines to form a 
visibly coloured final product.
Patent EP-0201141-A3 (EP)
Title: A method and apparatus for preparing a shaped ice confection product
IPC: A23G9/14
Filed: 1986-05-05
Abstract: A method for preparing a shaped ice confection product wherein a mixture of ice particles and a liquid, which mixture is pumpable under pressure but maintains its shape if unsupported, is introduced under pressure into a mould which is closed apart from venting openings. An apparatus for manufacturing shaped ice confection products comprising means for manufacturing an ice confection mixture comprising ice cristals and a liquid phase, a chamber (1) with pressurizing means (2) and a devisible mould (7) having heating means (15) and being closed, apart from venting openings.
Patent EP-0190850-A3 (EP)
IPC: G09G3/36
Filed: 1986-01-24
Abstract: A method for increasing the speed at which characters 
may be written onto a liquid crystal display (10) of the type in 
which a plurality of write cycles must be applied to each 
picture element that is to become visible. The character-­
writing operation is divided into two or more stages each of 
which preferably includes an equal number of write cycles. 
During at least those times when an operator is entering 
characters more rapidly than they can be fully written, the 
different stages of the writing operations for two or more 
successive characters are performed simultaneously to 
increase the apparent writing speed of the display.
Patent EP-0207863-A3 (EP)
Title: Procédé pour l'étude de la structure cristalline de monocristaux et dispositif pour la mise en oeuvre de ce procédé
IPC: G01N23/207
Filed: 1986-06-30
Abstract: L'invention concerne un procédé pour l'étude de la structure cristalline de 
monocristaux consistant à irradier un monocristal par un faisceau de rayons 
X et un diffractomètre pour la mise en oeuvre de ce procédé.  
     Ce procédé consiste à étudier les taches des faisceax diffractés par ledit 
monocristal à travers une fenêtre d'analyse longitudinale et à faire balayer 
l'espace présumé devant contenir lesdites taches par ladite fenêtre d'analyse 
longitudinale. Le diffractomètre permettant de mettre en oeuvre ce procédé 
se caractérise essentiellement par le fait qu'il comprend une embase 1, une 
platine goniométrique 4 sur l'embase 1, un support 11 d'un cristal 13 à 
étudier, une source de rayonnement X 45, un détecteur à localisation 21, au 
moins un montant 30, 31, fixé sur l'embase 1, un bras 36 monté rotatif sur 
ledit montant, la source de rayonnement X étant fixée sur le bras 36, de 
façon à pivoter autour du cristal.  
     Applications à la détermination de la structure cristalline d'un monocristal tel 
que protéine.
Patent EP-0237983-A3 (EP)
Title: Process for the biotechnological preparation of l (-)-carnitine chloride
IPC: C12P41/00
Filed: 1987-03-13
Abstract: The biotechnological prepn. of L(-)-carnitine chloride of formula (I) comprises (a) reacting a racemic ester of (R,S)-3,4,-epoxy-butyric acid of formula (II) (R = 1-10C alkyl or benzyl; benzyl) with an enzyme or with a microorganism producing the enzyme, capable of hydrolysing asymmetrically and in a prevalent way enantiomer S(-), under pH conditions controlled by alkalis and sepg. the enantiomer S(-) by usual techniques from non-reacted ester (II) which is present in the R(+) form, (b) reacting the R(+) form of ester (II) with an enzyme capable of hydrolysing the R(+) form quantitatively, under pH conditions controlled by alkalis, to obtain a salt of 3,4-epoxybutyric acid of formula (III) (X = a cation such as Na, K or Li) in the R(+) form and (c) reacting the R(+) form of the salt (III) with trimethylamine in a molar excess and, after having removed the excess with HCl, obtaining (I). Pref. asymmetric hydrolysis is carried out with steapsin, pancreatin or lipase from Candida Cylindracea. Step (b) is pref. carried out using a hydrolytic enzyme pref. Subtilisina BPN', Subtilisina Calsberg or Alcalase (RTM).
Patent EP-0242795-A3 (EP)
IPC: G02C7/04
Filed: 1987-04-15
Abstract: A contact lens (10) is provided for the eye of a patient 
with a cornea. The contact lens includes a posterior surface 
(13) which includes an innermost or generally circular first 
zone (20) having a diameter which is at least 0.5 mm greater 
than the greatest dimension of the central apical cornea sur­
face (32). The radius of curvature of the first posterior surface 
(20) is at least as small as that of the central apical corneal 
surface (32). A generally annular second posterior zone (22) 
extends radially beyond the first zone (20), the second zone 
(22) having a radius of curvature less than the radius of cur­
vature of the first posterior zone (20) and generally cor­
responding to the curvature of the generally corneal surface 
(34) surrounding the central apical surface (32). In one emb­
odiment, a generally annular third peripheral zone (24) pre­
ferably extends radially beyond the second zone (22) and out­
wardly from the corneal surface to facilitate circulation of 
fluid between the contact lens and the cornea. The anterior 
surface (11) of the lens includes a first generally circular cor­
rective zone (12) for correcting the patient's vision and a 
second generally annular zone (14) extending radially 
beyond the corrective zone (12) and generally paralleling the 
second posterior zone (22).
Patent EP-0250846-A3 (EP)
Title: Sheet material and separator envelopes made therefrom for accumulator electrode plates
IPC: H01M50/466
Filed: 1987-05-22
Abstract: The invention concerns a sheet material and separator envelopes manufactured therefrom for enclosing electrode plates of batteries. The cited object is to improve the manufacturability of the heat-sealed or bonded seams of the electrode envelopes and to prevent puncturing or rupturing of the separator envelopes due to growth of the positive grid. This object is achieved by means of a base-sheet thickness for the sheet material used to manufacture the separator envelopes which is greater in the region of the marginal areas than in the region of the inner surface of the sheet material or separator envelopes.
Patent EP-0251154-A3 (EP)
IPC: F21S8/08
Filed: 1987-06-23
Abstract: An improved lighting system for tennis courts, baseball fields 
and football fields and similar applications is disclosed. Fixed-aim 
floodlights provide rectangular normally horizontal patterns of 
illumination. The floodlight lamps are maintained vertically to maintain 
maximum efficiency. Each floodlight is also provided with a reflector 
for redirecting light rays from the lamp and a refractor having on its 
upper part a steep parabolic surface having a reflective metalized 
surface and prisms for redirecting the reflected light rays laterally.
Patent EP-0258899-A3 (EP)
IPC: C12Q1/68
Filed: 1987-09-03
Abstract: A method for testing a substance to determine whether 
the substance is mutagenic is described. The method 
involves contacting with the substance a mammalian 
tester cell, the cell comprising DNA carrying a muta­
tion which renders the DNA incapable of directing pro­
duction of a detectable marker but which is capable of 
undergoing back mutation so that a detectable marker 
can be produced under conditions which permit back 
mutation of the DNA, treating the resulting tester cell 
under conditions which permit back mutation of the DNA 
and production of the detectable marker, and detecting 
the presence of the detectable marker, such presence 
indicating that the substance is mutagenic. The inven­
tion also provides a mammalian tester cell comprising 
foreign DNA carrying a mutation which renders the DNA 
incapable of directing production of a detectable mark­
er but which is capable of undergoing back mutation so 
that the detectable marker can be produced.
Patent EP-0264830-A3 (EP)
IPC: H04R7/02
Filed: 1987-10-15
Abstract: A diaphragm for producing sound includes at least one 
layer of a union fabric woven from a plurality of yarn 
filaments of plural kinds. The plural kinds of the yarn 
filaments have elongations different from each other. The 
plural kinds of the yarn filaments are arranged in a 
predetermined regular order in both warp and weft directions.
Patent EP-0269102-A3 (EP)
Title: Acid-protonated water-dilutable binders
IPC: C09D5/44
Filed: 1987-11-26
Abstract: The binders for cathodic electrocoating which become water-thinnable on protonation with an acid and are thermally crosslinkable in the presence of an acid, contain by covalent bonding the groups <IMAGE> where R is a C2-C18-alkyl, a cycloalkyl or an aralkyl group which contains one or more electronegative substituents and where R' is one of the radicals R or a C1-C18-alkyl, a cycloalkyl or an aralkyl group and R" is a C2-C4-alkylene group.
Patent EP-0246780-A3 (EP)
IPC: G01R33/02
Filed: 1987-05-06
Abstract: An applied magnetic field direction indicating device 
comprising a magnetic sensor (1) having an omnidirectional 
directional characteristic and an output which is non-linearly 
related to the magnitude of the applied field. The sensor (1) is 
subjected to two mutually perpendicular sinusoidal magne­
tic biassing fields of the same frequency and in time quadra­
ture relationship. A characteristic of the output of the sensor 
(1) is indicative of the direction of the applied field.
Patent EP-0254478-A3 (EP)
Title: Electromagnetic method and apparatus for positioning objects located behind a conductive wall
IPC: G21C1/20
Filed: 1987-07-15
Abstract: In a method for repositioning garter springs (35) around the pressure tube (29) on Gandu-type nuclear reactors, apparatus (37) having a primary coil (39,41,43) and a high permeability core (45) is inserted into the pressure tube (29). The coil is energized by an alternating current of a frequency and amplitude sufficient to produce a primary alternating electromagnetic field that penetrates the wall (29) and induces an eddy current in the garter spring (35). A secondary alternating electro magnetic field is also produced and is reactive with the primary field to produce a travelling electromagnetic field of sufficient intensity and of such direction that the resultant of the electromagnetic forces acting on the garter spring causes the spring to move along the tube.
Patent EP-0265174-A3 (EP)
IPC: B22D11/045
Filed: 1987-10-15
Abstract: A mould suitable for the continuous horizontal 
casting of metal to form shaped stock which comprises 
a mould body of heat conductive metal which defines by 
its interior surface a mould cavity having a 
transverse cross-sectional configuration approximating 
the cross-section of the shaped stock and which is 
adapted to contact coolant for indirect heat exchange 
from the interior surface of the mould, the mould also 
defining an end plate continuous with the interior 
surface of the mould, and a thermal barrier layer 
integral with the mould of at least that portion of 
the end plate of the mould that is adjacent the 
interior surface of the mould, which thermal barrier 
layer is adapted to contact a nozzle of a tundish to 
supply molten ferrous metal to the mould, the thermal 
barrier layer having sufficient thickness to prevent 
the solidification of the ferrous metal adjacent to 
the nozzle.
Patent EP-0275056-A3 (EP)
IPC: B64C27/615
Filed: 1988-01-09
Abstract: Vorrichtung zum Verstellen von im wesentlichen plattenförmigen 
Klappen an Tragflächenprofilen. Die Klappe (8;24) ist mit einer 
Längsseite starr mit dem Tragflächenprofil verbunden. Es ist 
wenigstens auf einer Seite der Klappe (8;24) ein an eine Hydrau­
likleitung (18;30,32) angeschlossener, in einer Richtung dehnbarer 
Balgen (12;26,28;40,42) vorgesehen, dessen Dehnungsrichtung quer 
zu einer vorgesehenen Biegeachse (10) der Klappe liegt. Der 
Balgen ist mit seinen Wulsten fest mit der Oberfläche der Klappe 
verbunden.
Patent EP-0280203-A3 (EP)
IPC: B29C57/00
Filed: 1988-02-19
Abstract: Die Erfindung betrifft ein Verfahren und eine Vorrichtung 
zum Herstellen von Hohlkörpern aus orientiertem thermo­
plastischem Kunststoff. Dabei wird ausgegangen von einem 
hohlen Formling, der eine im wesentlichen zylindrische 
Wandung und einen Boden aufweist. Dieser Formling wird im 
Bereich seiner Öffnung zunächst vor-aufgeweitet und alsdann 
in einem nächsten Behandlungsschritt thermofixiert. Dem 
Thermofixiervorgang kann ein mechanischer Aufweitvorgang 
vorausgehen, durch den das die Wandung des Formlings 
bildende Kunststoffmaterial orientiert wird.
Patent EP-0308794-A3 (EP)
Title: Liquid crystal phenyl pyrimidine ester of cyclohexane-carboxylic acid with a smectic phase, process for its preparation and its use in liquid crystal mixtures
IPC: C07D239/34
Filed: 1988-09-14
Abstract: Phenylpyrimidinyl trans-cyclohexanecarboxylates of the formula 
<IMAGE>
 form, in addition to a relatively broad nematic phase, a smectic C phase if R<1> denotes an alkyl radical having 10 to 16 carbon atoms, in particular 11 to 16 carbon atoms, or an alkyloxy radical having 8 to 14 carbon atoms and R<2> denotes an alkyl radical having 2 to 9 carbon atoms. Accordingly, they are suitable in particular as components of liquid-crystalline mixtures having a smectic C phase, since they induce a relatively broad nematic phase or widen a narrow nematic phase present and enlarge the temperature range of the smectic C phase towards low, but in particular towards high temperatures.
Patent EP-0317786-A3 (EP)
Title: Constant width trench for wafer processing
IPC: H01L21/762
Filed: 1988-10-27
Abstract: A T-shaped trench intersection (34) shaped to make 
uniform the wall-to-wall spacing at the trench 
intersection (34) and prevent the formation of voids when 
the trench is filled with a conformal insulating material 
(41).
Patent EP-0319927-A3 (EP)
Title: Method for preparing multilayered coated articles and the coated articles prepared by the method
IPC: C08G18/08
Filed: 1988-12-07
Abstract: A method of forming a multilayered coating on a substrate 
involves the steps of: 
   (I) applying to the surface of a substrate an aqueous based 
film forming composition comprising color pigments and an 
aqueous polyurethane dispersion comprising the reaction 
product of: 
   (a) a substantially branched, isocyanate containing 
prepolymer; and    (b) a polyamine having primary and/or secondary amino 
groups;      (II) applying a clear film forming composition over the 
basecoat of step (I);    (III) allowing the clear composition of step (II) to at least 
partially dry or cure to form a transparent topcoat over 
said basecoat.
Patent EP-0288222-A3 (EP)
IPC: H02M7/12
Filed: 1988-04-15
Abstract: An electric lamp supply comprises a full-wave rectifier (D1-D3, 
SCR) composed partially or entirely of thyristor(s), said 
full-wave rectifier having both an input terminal connected 
with an ac source (AC) and an output terminal connected 
with a lamp (Z); smoothing means (C1) connected in parallel 
with the lamp; means (ZD) to detect a voltage across the 
lamp that exceeds a prescribed level; and means (T,C2) 
to control the conduction angle of the thyristor(s) (SCR) 
dependently on the magnitude of the voltage, said controlling 
means being operable in association with said detecting 
means.
Patent EP-0300839-A3 (EP)
Title: Method for the production of high elasticity modulus high strength polymeric materials
IPC: C08J5/18
Filed: 1988-07-25
Abstract: High elasticity modulus, high strength 
thermoplastic polymer materials are produced by a 
procedure wherein a polymer melt, such as polyamide melt, 
is heated to a temperature that is from 20 to 100°C 
higher than the melting temperature of the polymer in the 
absence of oxygen and formed into a film which is 
subjected to rapid quenching at a temperature below 0°C, 
the film thus obtained being subjected to drawing 
(orientation) at ambient temperature and annealing with 
fixed ends at a temperature of from 100 to 160°C under 
conditions such that it is not oxidised.
Patent EP-0312244-A3 (EP)
Title: Drawdown machines
IPC: B05C9/02
Filed: 1988-10-05
Abstract: An improved drawdown machine is disclosed in which an ink bead (23) or colouring agent is evenly distributed over a receptor surface e.g. a sheet of paper (5) by pulling the paper (5) through a nip formed between a bed surface (1) and a bar (3).
Patent EP-0312404-A3 (EP)
Title: Apparatus and method for improving the fidelity of audio recording on a magnetic medium
IPC: G11B5/03
Filed: 1988-10-14
Abstract: Apparatus and method for improving the fidelity 
of audio recording on a magnetic medium in which an 
input signal, suitably equalized, and a variable 
amplitude RF bias signal are applied to a record head 
in a magnectic media recording system. The RF bias 
amplitude is controlled so as to be inversely 
proportional to a function of the sampled 
pre-emphasized input signal. The control signal is 
derived from within the record amplifier circuit.
Patent EP-0286544-A3 (EP)
IPC: G01R11/56
Filed: 1988-04-11
Abstract: A microprocessor based time-of-use electricity meter 
register uses an external real time clock powered by a backup 
battery during a power outage to measure real time elapsed during 
the outage. Upon detection of a power outage, line power and real 
time data are transferred by the microprocessor to an external, 
non-volatile memory, the external real time clock is energized by 
the backup battery and the clock reset to accumulate elapsed real 
time (days, hours, minutes, seconds) during the duration of the 
outage. Upon resumption of line power, the elapsed real time 
accumulated by the clock and the content of the non-volatile memory 
are transferred to the microprocessor, the backup battery is 
disconnected from the external real time clock and the real time 
previously stored in the nonvolatile memory is updated by the 
elapsed real time so that no customer billing data are lost during 
the outage.