baber/WOPTO huggingface dataset:
Patent EP-0261968-A3 (EP)
Title: Improved column flotation method and apparatus
IPC: B03D1/14
Filed: 1987-09-24
Abstract: A method and apparatus for the benefication of mineral ores by the flotation method whereby a slurry is introduced under pressure into the top (1) of a first column (2) through a downwardly facing nozzle (3), and air is entrained into the slurry forming a downwardly moving foam bed in the first column. The foam bed passes from the bottom (12) of the first column into a second column (5) where the froth and liquid separate, the froth (16) carrying the values floating upwardly and over a weir (15) and the liquid being drained with the gangue. The liquid/froth interface level (7) in the second column is kept above the bottom (12) of the first column, and the air flow rate into the top of the first column is controlled to keep the first column (2) substantially full of foam.
Patent EP-0262966-A3 (EP)
IPC: A61B10/00
Filed: 1987-10-01
Abstract: A probe is provided for collecting mucous tissue 
samples  in   vivo  particularly from the conjunctiva, the 
urethra and the cervix. The probe comprises a handle 
portion (10) and a body portion (14), which is slotted 
for scraping the tissue into the slots.  
     The tissue sample may then be introduced into 
an aqueous transport medium comprising sucrose, potassium 
phosphates, foetal bovine serum, streptomycin, vancomycin 
and nystatin. The sample may be smeared from the transport 
medium, with the cells still intact onto a slide, using 
a cytocentrifuge; and then the smear is assayed for 
disease, for example disease due to adenovirus, herpes 
simplex virus or chlamydia.  
     The assay step may include single or multiple 
immonofluorescent staining.
Patent EP-0272971-A3 (EP)
Title: Di-bishydroxy de l'acide cyanurique, ses dérivés trisubstitués et leur procédé de fabrication
IPC: C07D251/34
Filed: 1987-12-04
Abstract: L'invention a pour objet de nouveaux dérivés (I) et (II) de 
l'acide cyanurique qui ont pour formule respectivement 
  
dans lesquelles :  
- R′ et R″ sont -CH₂-CH(OH)-CH₂OH et  
- R est un groupe alkyle comportant une fonction éthylénique 
polymérisable telle qu'un groupe acrylique, méthacrylique ou allylique.   
 
Les dérivés (I) et (II) selon l'invention peuvent être utilisés comme 
agents de réticulation dans les polymères.
Patent EP-0254684-A3 (EP)
Title: Frame
IPC: A47G/
Filed: 1987-07-20
Abstract: A frame which includes four corner pieces (1O) and four side members (2O,22). Each corner piece (1O) is formed with two tubular formations (15) which are at right angles to each other and which have longitudinally extending slots in their respective walls. The side members (2O,22) have formations (27) which are complementary in shape to the tubular formations and which are frictionally engageable therewith. The opposed ends of each side member (2O,22) are engaged with two corner pieces (1O) respectively whereby a square or rectangular frame is constructed for a planar member (38) with peripheral portions of the planar member being located in longitudinally extending openings (32) in the side members respectively.
Patent EP-0298291-A3 (EP)
Title: Method and apparatus for gluing saw toothed butting surfaces of veneer blanks
IPC: B27D1/10
Filed: 1988-06-18
Abstract: In order to glue saw-toothed abutting surfaces (1) of strip-shaped veneer pieces (2 and 3) to be joined to form veneer blanks, the front abutting surfaces (1) and hence the teeth (4) are in each case wetted with glue by arranging the two veneer pieces (2 and 3) at a distance from one another with one flat side and teeth (4) pointing towards one another on an application surface (7), an apportioned strip of glue (6) or, alternatively, a series of spots of glue being applied in the space between the two mutually facing front sides of these veneer pieces (2 and 3) to be joined, before, at the same time as their arrangement or, alternatively, afterwards, and at least one veneer piece then being moved towards the other and in the process being pushed through the glue with its teeth (4). In this process the moved veneer pieces(s) (2 and 3) is/are guided on their top side (10) facing away from the application surface (7) having the glue and are held down to such an extent that they are prevented from sliding over one another. The intermediate transport of the veneer blanks after the wetting of the abutting points with glue is thus avoided and the wetting with glue and the joining together take place on one and the same apparatus. <IMAGE>
Patent EP-0297574-A3 (EP)
IPC: H01L41/04
Filed: 1988-06-30
Abstract: A piezo-electric drive unit (1) is disposed in 
contact with a driven member (4), with an a.c. voltage and 
a d.c. voltage superimposed thereon being applied to the 
drive unit (1). The pushing force acting between the drive 
unit (1) and driven member (4) is controlled by adjusting 
the d.c. voltage.
Patent EP-0304712-A3 (EP)
Title: Method of and device for removing volatile contaminants from the soil
IPC: E21B43/00
Filed: 1988-08-06
Abstract: Driving of volatile impurities from a ground by mans of air is performed by aspirating an afterflow air and impurities containing gases which penetrated through a permeable wall of a shaft in a ground, at one or several locations in regions of expected high gas contents, air afterflow passages are extended to these regions for supplying the afterflow air, and an adjustable afterflow resistance is arranged in the passages for influencing a negative pressure value and a flow speed in these regions.
Patent EP-0283114-A3 (EP)
Title: Alkalizer for fibre reactive dyes in cotton
IPC: D06P3/66
Filed: 1988-01-22
Abstract: A premixed liquid alkalizer, suitable for use as a direct textile bath additive, comprises a water solution containing tro-potassium phosphate, potassium hydroxide and/or sodium hydroxide and potassium carbonate and/or sodium carbonate.
Patent EP-0291258-A3 (EP)
IPC: G01G3/14
Filed: 1988-05-09
Abstract: For transmitting a force due to a weight loaded on a 
weighing pan 3 to an electromagnetic weight sensor 2, a Roberval 
mechanism with sides 4 to 7 and flexible joints 8 to 11, a 
lever mechanism 12 with a fulcrum 15 and a connecting portion 
13 for connecting the lever mechanism to the Roberval mechanism 
are formed integrally by cutting out a metallic block. 
Alternatives are to replace the block by two or more parallel 
plates joined by spacers.
Patent EP-0329901-A3 (EP)
IPC: G01D4/00
Filed: 1988-12-22
Abstract: An electronic remote data recorder records 
pulses representing usage of a commodity such as, for 
example, water, gas or electricity from a plurality 
of consumers. The data from each consumer is stored 
in a respective data storage device. Each data 
storage device is associated with an interval data 
directory which stores the times at which significant 
events, affecting the data in the data storage device 
occurred. Thus, the data in the data storage device 
is compact, without requiring a contemporaneous time 
code for each data item. Data integrity is retained 
over a period of power outage in a non-volatile 
storage device. Initial, post-installation 
programming is enabled by comparing the data pattern 
in the non-volatile storage device with a predefined 
data pattern that is expected to exist once the 
apparatus has been programmed. A write-protect 
switch prevents programming during an incoming call 
after the initial programming. Programming from an 
external source may be permitted during a telephone 
call initiated by the data recorder itself. A 
telephone line-sharing device permits a plurality of 
remote data recorders to share a single telephone 
line without interfering with each other.
Patent EP-0326889-A3 (EP)
IPC: C09K23/14
Filed: 1989-01-23
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung oberflächen­
aktiver Sulfophosphorsäure(partial)alkylester und deren Alkali-, 
Erdalkali-, Ammonium- und/oder Aminsalze durch Sulfonierung von 
Phosphorsäureestern und anschließende Hydrolyse der gebildeten 
Sultonzwischenstufen.
Patent EP-0339530-A3 (EP)
IPC: A61F2/40
Filed: 1989-04-22
Abstract: Endoprothese für ein Gelenk, bestehend aus einem Anschluß­
stück (1) mit einem in einem Röhrenknochen fixierbaren 
Stiel, einem darauf sitzenden Gelenkkopf (2) und/oder einem 
eine Gelenkpfanne nachbildenden Gelenkpfannenteil, wobei 
die Rotationsstellung des Gelenkkopfes (2) am Anschluß­
stück (1) und/oder des Gelenkpfannenteils einstellbar und 
fixierbar ist (Figuren 1 und 2).
Patent EP-0357870-A3 (EP)
IPC: G01P3/487
Filed: 1989-05-03
Abstract: Two embodiments of a reluctance-type rotational speed 
sensor are disclosed. In one embodiment, an annular 
magnet (38) circumscribes a sensing coil (40) having a unitary 
rotor (36) nesting within, and is disposed between two stator 
elements (24, 26). In a second embodiment, a magnet (138) is disposed 
between two halves of a rotor (136), the entire assembly 
nesting within a sensing coil (140) and disposed between two 
stator elements (124, 126). Either embodiment of the invention may 
be used to measure the angular speed of a rotating shaft, 
or, with minor modifications, of an overrunning bore.
Patent EP-0344558-A3 (EP)
IPC: G01N27/90
Filed: 1989-05-20
Abstract: In order to detect interlamination shorts (8 ) in the case of laminated core stacks, the core stack (1) is magnetized with an auxiliary winding. The iron surface (15) is scanned with a measuring coil arrangement (5) comprising two electrically separated, mechanically interlinked coils (6, 7). The output signals from the coils are compared with each other in a downstream measuring instrument (9); in the case of an interlamination short, the fault current through the short-circuited laminations will induce in the coils different, phase-shifted voltages which make it possible to infer the position and size of the interlamination shorts.
Patent EP-0355287-A3 (EP)
IPC: G06F9/44
Filed: 1989-06-08
Abstract: A method is disclosed for converting both a knowledge base 
and an inferencing technique into compilable program code 
forming a knowledge based system. The method is based on 
determining what actions an interpretitive inference engine 
would take with the specific knowledge base and generating only 
the program code needed to perform these actions. This method 
eliminates the overhead of interpreting a representation of the 
knowledge base and significantly improves performance of the 
system. The method is applicable to both forward and backward 
chaining reasoning strategies and does not modify or restrict 
the functional capabilities of the knowledge based system.
Patent EP-0349791-A3 (EP)
IPC: H01R13/646
Filed: 1989-06-09
Abstract: A device is provided for contacting waveguide tube outer 
conductors of a coaxial cables on the one hand and the inner 
surface of an eletrically conductive outer socket on the 
other hand.  
     The device comprises a contact member that can be screwed 
onto the waveguide tube outer conductor and in so doing 
alters its original outer contour to another contour.
Patent EP-0355648-A3 (EP)
IPC: F01D11/02
Filed: 1989-08-14
Abstract: Einrichtung zur Abdichtung bei der ein Dichtring (2) 
in einem zylindrischen Gehäuse (G) unter Ausbildung 
eines radialen Dichtspalts (3) als Primärdichtung angeordnet und 
mit einer sekundären Leckflußpassage (5) zwischen einem Wandab­
schnitt des Gehäuses (G) und dem Dichtring (2), die mit dem Raum (R2) 
niedrigeren Druckes kommuniziert, wobei der Dichtring (2) mittels 
am Gehäuse (G) einseitig verankerter, im wesentlichen parallel 
zur Maschinenachse angeordneter Federelemente (4) zentriert ist.
Patent EP-0356818-A3 (EP)
IPC: H05B41/28
Filed: 1989-08-17
Abstract: Bei einer Schaltungsanordnung zum Betrieb einer Last 
über eine Drossel (L1) oder einen Transformator mit 
einem Hochsetzsteller und einem Gegentaktfrequenz­
generator wird die Basis des Schalttransistors (T3) 
des Hochsetzstellers aus demselben Übertrager wie die 
Transistoren (T1, T2) des Gegentaktfrequenzgenerators 
angesteuert. Vorteilhaft besteht der Übertrager aus 
einem Stromsättigungs-Ringkerntrafo, wobei die 
Ansteuerwicklung (RK3) für den am Nullpotential ange­
schlossenen Transistor (T2) des Gegentaktfrequenz­
generators gleichzeitig die Basis des Schalttran­
sistors (T3) des Hochsetzstellers speist. Dadurch wird 
ein Interferieren von Frequenzen bei der Schaltungs­
anordnung unterbunden.
Patent EP-0374814-A3 (EP)
IPC: C08F285/00
Filed: 1989-12-19
Abstract: Pfropfpolymerisate, erhältlich durch 
   A. Emulsionspolymerisation von 5-20 Gew.-% eines Monomerengemischs 
bestehend aus 
   a₁) 80-100 Gew.-% Styrol oder dessen kernsubstituierten Derivaten 
(Monomere I)    a₂) 0- 20 Gew.-% eines C₁-C₁₂-Alkylesters der Acrylsäure oder der 
Methacrylsäure oder eines α,ß-*ungesättigten 
Nitrils (Monomere II)    a₃) 0-10 Gew.-% eines bi- oder polyfunktionellen Monomeren 
(Monomere III) und    a₄) 0- 5 Gew.-% weiterer radikalisch polymerisierbarer Monomere 
(Monomere IV),    
wobei sich die Gew.-% a₁) - a₄) auf die Gesamtmenge (= 100 %) der in 
Stufe A) eingesetzten Monomere beziehen,  
mit der Maßgabe, daß der mittlere Teilchendurchmesser der so erzeugten 
Latexteilchen 50 nm nicht überschreitet,   B. anschließende Pfropfpolymerisation von 35-65 Gew.-% eines 
Monomerengemischs aus 
   b₁) 75-90 Gew.-% eines konjugierten Diens (Monomere V)    b₂) 10-25 Gew.-% der Monomeren I und/oder II    b₃) 0-10 Gew.-% der Monomeren III und    b₄) 0-5 Gew.-% der Monomeren IV,    
wobei sich die Gew.-% b₁) - b₄) auf die Gesamtmenge (= 100 %) der in 
Stufe B) eingesetzten Monomere beziehen,   C. anschließende Pfropfpolymerisation von:  
C/1: 30-50 Gew.-% eines Monomerengemischs aus 
   c₁) 35-65 Gew.-% der Monomeren I     c₂) 10-25 Gew.-% eines α,ß-ungesättigten Nitrils (Monomere IIc) 
 
    c₃) 25-50 Gew.-% mindestens je eines Monomers aus der Gruppe der 
C₁-C₁₂-Alkylester der Acrylsäure (Monomere IIa) 
und eines Monomers aus der Gruppe der C₁-C₁₂-­
Alkylester der Methacrylsäure (Monomere IIb)    c₄) 0-10 Gew.-% der Monomeren III,    
wobei sich die Gew.-% c₁)-c₄) auf die Gesamtmenge (= 100 %) der in 
C/1) eingesetzten Monomere beziehen,  
C/2: 30-50 Gew.-% eines Monomerengemischs aus  
   c₅) 35-65 Gew.-% Monomere I    c₆) 10-25 Gew.-% Monomere IIc)    c₇) 15-40 Gew.-% mindestens je eines Monomers IIa und je eines 
Monomeres IIb    c₈) 0-10 Gew.-% eines Monomers III     
in der 1. Stufe und 
   c₉) 5-25 Gew.-% eines Monomers IIb, sowie    c₁₀) 0- 2 Gew.-% Monomere III     
in der 2. Stufe,  
wobei sich die Gew.-% c₅)-c₁₀) auf die Gesamtmenge (= 100 %) der in C/2) 
eingesetzten Monomere beziehen.   
Diese Pfropfpolymerisate eignen sich als Modifizierungsmittel für 
Polyvinylchloridharzmassen.
Patent EP-0375044-A3 (EP)
Title: Neutralizing process for toxic waste material
IPC: C04B28/04
Filed: 1989-12-15
Abstract: The invention refers to a neutralizing process for toxic waste material coming from industrial plants or from purification sludge, and can be applied to all possible types of toxic wastes, muds, ashes, liquids or the like;it is simple and economic and involves only a few simple operations appliable without the use of heat, and furthermore, what results from such process can be reutilized in numerous ways and therefore not becoming a waste burden to be disposed of. Analysis made on a vast range of different kinds of toxic wastes treated with the process according to the invention, after immersion in acetic acid at 0,5M for 24hrs., showed an eluted with values of toxic residues way under the limits permitted by table A of law 319/76 "legge Merli. The process according to the invention consists in mixing a proper ratio of toxic wastes, being muds, ashes or liquids with appropriate proportions of Portland cement, filler, fine river sand or clay and adding a small quantity of a product known on the market as "Glorit" or "Glorit A" dissolved in water, all mixed accurately together to obtain a paste which can eighther be used immediately or solidified for the preparation of manufactured material generally for the construction or building trade.
Patent EP-0334527-A3 (EP)
Title: Slime control for primary filtration systems
IPC: B01D35/143
Filed: 1989-03-14
Abstract: A process for protecting a filter bed medium (12) 
and underlying support screen (16) from solids contained 
in a liquid, such as filtrate from the filter, used to 
regenerate or backwash the filter (10) is provided in 
which filtrate is collected in a first collection chamber 
(30) containing a screen assembly (34) through which 
filtrate passes to a first outlet, the chamber also 
containing a second outlet (48) which bypasses the screen 
assembly to deliver filtrate for further processing or 
use. Filtrate traversing the screen assembly (34) is 
transferred to a second collection chamber (50) with 
addition of a predetermined amount of bactericide to 
prevent solids growth therein. Upon bactericide-treated 
filtrate reaching a predetermined level (42) within the 
second chamber (50), filtrate in the first chamber (30) 
is allowed to flow out of the second outlet (48) to 
further biological treatment or use. Bactericide-treated 
filtrate from the second collection chamber (50) is used 
periodically to regenerate or backwash the filter (10) 
with optional addition of surfactant to assist in 
cleaning the filter medium (12) and underlying support 
screen (16). The first collection chamber (30) has an 
alarm system (76,120) which detects resistance of 
filtrate flow traversing the screen assembly (34) and 
warns that the screen assembly requires cleaning or 
replacement. Alternatively, a second collection chamber 
is not used and the bactericide-treated filtrate is 
collected in the first collection chamber for delivery to 
the filter for regeneration or backwashing after 
traversing the screen assembly, filtrate bypassing the 
collection chamber for delivery downstream when the first 
collection chamber is filled to a predetermined level. 
Apparatus for carrying out the process is also described.
Patent EP-0339866-A3 (EP)
Title: A process for the production of microcapsules
IPC: B41M5/124
Filed: 1989-04-20
Abstract: In a process for the production of microcapsules by coacervation of gelatin, carboxymethyl cellulose (CMC) and a second anionic polymer such as a polyvinylmethylether/maleic anhydride copolymer or an ethylene/maleic anhydride/copolymer, the weight ratio of gelatin:CMC is chosen to be in the range 1:0.14 to 1:0.05, and the CMC used is chosen to have a viscosity in the range of from 50 to 140 mPas (cps), when measured in 6.0% by weight aqueous solution at 20 DEG C using a Brookfield RVT viscometer, Spindle No. 1, 10 r.p.m. The use of the specified weight ratio and CMC type permits significant increases in the solids content at which encapsulation can be carried out without increasing process viscosities to an unacceptable extent and/or giving rise to poor quality microcapsules. The process is particularly suitable for producing microcapsules for use in pressure-sensitive copying paper.
Patent EP-0338857-A3 (EP)
IPC: C25D17/10
Filed: 1989-04-21
Abstract: An elastomeric electrode (10) having an electrically conduc­
tive base (11), a protective layer (12) enclosing the base (11) formed of 
an elastomeric material having electrically conductive mate­
rial selected from the group consisting of highly conductive 
carbon black, graphite, and glassy carbon distributed there­
in and present in the amount of 10 to 30 parts by weight to 
100 parts by weight of the elastomeric material. A terminal (13) 
extends from the base to exteriorly of the protective layer (12).
Patent EP-0349108-A3 (EP)
IPC: A61C13/24
Filed: 1989-05-09
Abstract: The stabilizer comprises anchor means (13) adapted to be 
secured in the inner depending lingual flange (4) of a 
mandibular denture. The stabilizer has an appendage (3) 
projecting inwardly of the denture and arranged to fit under 
the patient's tongue. The appendage (3) is connected to the 
anchor means (13) by fitting means (7, 10) arranged to permit 
adjustment of the relative position of the appendage and the 
anchor means. The fitting means, for example, may be a screw 
threaded sleeve (7) carried by the appendage through which 
extends a screw threaded shaft (9) connected to the anchor 
means.
Patent EP-0350223-A3 (EP)
Title: Polyacetal resin composition
IPC: C08L59/00
Filed: 1989-06-30
Abstract: A polyacetal resin composition is prepared by 
melt-kneading a polyacetal resin (A) (99 to 40 
wt. %) with a thermoplastic polyurethane (B) 
(1 to 60 wt. %) in the presence of a polyiso­
cyanate compound, a polyisothiocyanate compound 
or a modification thereof (C) in an amount of 
0.1 to 10 wt. % based on the total of A and B.
Patent EP-0357281-A3 (EP)
Title: High definition tv system
IPC: H04N11/24
Filed: 1989-08-14
Abstract: A high definition television system is disclosed. 
The transmitter 10 of the invention compresses image data 
and transmits the compressed data during the vertical 
flyback interval of a standard NTSC television signal. 
The receiver 30 of the invention decompresses the 
compressed image data and adds the expanded lines of data 
to normal image data in interlineal fashion. In a 
specific embodiment, an improvement operator 58 is 
utilized to expand the data and fill in missing pixels. 
The output of the improvement operator 58 is stored in a 
memory 56 which is then scanned in a non-interlaced mode 
for presentation.
Patent EP-0364266-A3 (EP)
Title: Nsaid and/or egf for enhancing the healing of corneal endothelial wounds
IPC: A61P17/00
Filed: 1989-10-12
Abstract: Method using a non-steroidal antiinflammatory 
compound, such as indomethacin and/or a growth factor 
that causes a change in cell function when bound to a 
specific cell surface receptor, such as epidermal 
growth factor (EGF), to enhance healing and restore 
function of the corneal endothelium. The compositions 
can be administered alone, in combination, or in 
sequence, before or after injury, for example, in an 
irrigation solution or in combination with a nutritive 
solution for storage of a cornea prior to transplant.  
     Examples of useful growth factors include, in 
addition to EGF and EGF-like compounds, fragments of 
EGF containing the receptor binding region, and EGF 
modified to improve stability, increase half-life, or 
enhance permeation into the eye. Examples of other 
non-steroidal antiinflammatories include aspirin, 
ibuprofen, and suprofen. The composition can be 
applied topically to the eye or delivered in a 
controlled fashion by means of a material such as a 
polymeric implant, gel, or liposomes.  
     The effective dosage is that amount which 
promotes closure of corneal endothelial tissue and 
restores function, i.e., restores permeability, 
including both barrier function and pumping function.
Patent EP-0366449-A3 (EP)
Title: Address table editing system
IPC: H01L29/868
Filed: 1989-10-25
Abstract: The address table editing system is used, for 
example, for dividing voice data continuously recorded 
on an optical disk (20) into a plurality of voice 
files, for setting up a start address and an end 
address for each of the voice files, and for editing an 
address table of the voice files. The address table 
editing system includes: a first playback unit (10) for 
replaying the voice data continuously recorded on the 
optical disk (20); a detection unit (33) for detecting 
a clock time indicating the address of the voice file; 
an input unit (64) operated by an operator for setting 
up the start address and end address when the operator 
hears the voice file replayed by the first playback 
unit; a storage unit (40) for storing the address 
table, wherein the start address and the end address 
when the operator performs the setting up of the 
address by hearing the voice file replayed from the 
first playback unit (10), are recorded in the address 
table of the storage unit.
Patent EP-0382033-A3 (EP)
IPC: A61K6/884
Filed: 1990-01-28
Abstract: Die Erfindung betrifft neue lichthärtende Dentalmassen, insbesondere Zahnfüllungs­
massen (composites) mit langer Lagerfähigkeit und Verarbeitungszeit.