baber/WOPTO huggingface dataset:
Patent EP-0310134-A3 (EP)
Title: Hydraulic control system for vehicles used in agriculture and civil engineering
IPC: F15B13/04
Filed: 1988-10-01
Abstract: Hydraulic control system for a tractor, with a control unit (24) for the power lift with at least one directional control valve (1) connected in the supply line (22, 23) to the control unit (24) and having neutral circulation for the pressure fluid, the directional control valve (1) serving to switch a consuming device on or off and being provided with a detent (6) which can be engaged automatically by spring force and disengaged by pressure fluid and, after an operation at the consuming device is complete, can in each case be unlocked in a delayed manner by an electro-hydraulic switching device (35 or 50). <IMAGE>
Patent EP-0317970-A3 (EP)
Title: A process for the synthesis of amikacin
IPC: C07H15/12
Filed: 1988-11-23
Abstract: In the synthesis of amikacin, having the formula: 
  
by acylation of a diprotected derivative of kanamycin A with a reactive 
derivative of L-(-)-4-amino-2-hydroxybutyric acid, the selection of the 
reaction solvent and of the pH conditions permit the industrial 
economicity and the synthesis yield to be improved.
Patent EP-0318811-A3 (EP)
Title: Improved power stage with increased output dynamics
IPC: H03F3/213
Filed: 1988-11-23
Abstract: An improved power stage with increased output dynamics. 
The stage comprises a power amplifier (1) having a first 
inverting input (2), a second non-inverting input (3), an 
ouput to be connected to a load (R L ) and a feedback network 
(R₁, R₂) comprising a first resistor (R₂) connected between 
the inverting input (2) and the output of the power 
amplifier (1) and a second resistor (R₁) connected between 
the first inverting input (2) and a first line set to a 
first reference (V A ) voltage by means of a voltage generator 
(20) with preset values. The stage furthermore comprises an 
input voltage generator (V i ) generating an input voltage 
signal to be amplified and connected between the second non-­
inverting input (3) and a second line set to a second 
reference voltage (V R ) different from said first reference 
voltage (V A ). In order to increase the output dynamics, in 
particular in the case of low power supply voltage, said 
voltage generator (20) arranged between the second resistor 
(R₁) and said input voltage generator (V i ), and generating 
a voltage which is variable in inverse proportion to the 
input voltage signal (V i ), with respect to the second 
reference voltage (V R ).
Patent EP-0286255-A3 (EP)
Title: Improved stain for acid-fast bacilli
IPC: G01N1/30
Filed: 1988-03-17
Abstract: A staining system for acid-fast bacilli includes a primary stain and a secondary stain; the primary stain comprising basic fuchsin, ethyl alcohol, isopropyl alcohol, Phenol nd water, and the secondary stain comprising methylene blue, ethyl alcohol, potassium hydroxide, glycerol, glacial acetic acid, polyvinylpyrrolidone and water.
Patent EP-0285458-A3 (EP)
IPC: C21C5/38
Filed: 1988-04-05
Abstract: A method of treating dust precipitated from waste 
gases from metallurgical processes in particular dust 
precipitated from waste gases in connection with the 
production of steel, in order to transfer the dust to a 
form in which it can be deposited without danger of 
environmental pollution and from which the valuable 
components of the dust can be recovered. According to 
the method, the dust is treated in the following steps: 
continuous supply of dust together with reducing agent 
and fluxes to a gastight covered electrothermic 
smelting furnace (1); smelting and selective reduction 
together with volatilisation of volatile metals in the 
smelting furnace (1); continuous or intermittent 
tapping of an inert slag phase (12) and a liquid metal 
phase (13) from the smelting furnace; continuous 
removal from the smelting furnace of a gas phase (8) 
containing chiefly CO-gas, metal fumes, sulphur, 
chlorides and fluorides together with entrained 
unreacted dust; optional selective condensation (10) of 
one or more meals from the metal fumes in he waste gas 
from the smelting furnace; controlled after burning (6) 
of oxydisable components in the waste gas; removal of 
dust (8) from the waste gas; and final purification and 
neutralisation (9) of the waste gas.
Patent EP-0295077-A3 (EP)
IPC: C08K3/30
Filed: 1988-06-08
Abstract: A composition comprising a polymer of 
4-methyl-pentene-1 and a lithopone, the amount of the 
lithopone being 1 to 70% by weight with respect to the total 
weight of the polymer and the lithopone can be used to 
provide molded products of improved impact strength and 
excellent gloss.
Patent EP-0311425-A3 (EP)
Title: Coating method for rigid, smooth surfaces, and coated articles
IPC: B32B7/06
Filed: 1988-10-07
Abstract: Covering a rigid but pliable, smooth surface with a one-sided matte embossed polyethylene film, where the non-embossed smooth side of the film is in direct contact with the smooth surface being covered. Adhesion of the smooth side of the film to the smooth surface to which it is applied is effected much like a vacuum adhesion as seen when a drop of water is placed between two sheets of glass. The embossed side of the film forms microscopic air pockets when rolled upon itself which prevents blocking. This feature allows the non-embossed side to be made as smooth as possible without the need for an anti-blocking agent.
Patent EP-0281463-A3 (EP)
IPC: C07J51/00
Filed: 1988-02-18
Abstract: New delivatives of platinum (II) complex which are 
liposoluble and applicable as antibacterial agents or 
anticancer agents specific to the affected parts of 
patients and selectively transferred to the parts when they 
are used in combination with lipidol, the delivatives being 
represented by the general formula of: 
  
(wherein R₁ and R₂ each stands for a ligand ammine which 
may have an organic substituent or may be bonded to each 
other through a bivalent organic group and R₃ represents a 
bile acid residue). These delivatives being prepared by 
nitrifying a cis-dichloro-di-(substituted or 
unsubstituted)-ammine platinum (II) and then reacting the 
resulting aqua type product with a corresponding alkali 
metal salt of bile acid.
Patent EP-0318415-A3 (EP)
Title: Method for making a flexible fluoroelastomer reinforced with a polyaramide fibre, and its use as tooling material
IPC: B29K27/12
Filed: 1988-08-03
Abstract: A method of making a flexible composite tool 
particularly adapted for composite molding and the 
composite tool made by this method. The method 
includes dissolving a B-staged fluoroelastomer in a 
suitable solvent such as methyl ethyl ketone or toluene 
to form a fluoroelastomer solution. A fabric is then 
coated with the fluoroelastomer solution. The solvent 
is evaporated and the impregnated fabric is sandwiched 
between unreinforced sheets to form a reinforced 
tooling material. The reinforced tooling material is 
laid up with alternating layers of unreinforced 
fluoroelastomer and then cured to form a composite tool 
which is stable through a plurality thermal cycle. The 
tool is useful in molding composites and is reusable. 
The life of the tool is further prolonged by a 
described method of repairing damaged portions of the 
tool.
Patent EP-0283426-A3 (EP)
IPC: G01N21/43
Filed: 1988-02-15
Abstract: Die Erfindung betrifft ein elektronisches Refraktometer 
mit einem dem Meßprisma nachgeordneten Sensor zur Be­
stimmung der Grenzlinie der Totalreflexion und damit 
des Brechungsindexes einer auf dem Meßprisma befind­
lichen Probe sowie mit einer vor dem Meßprisma ange­
ordneten justierbaren Lichtquelle. Um ein elektronisches 
Refraktometer der genannten Art so auszubilden, daß 
auf dem Prisma ein homogener Lichtfleck erhalten wird, 
und zwar reproduzierbar, d.h. auch nach einem eventuell 
durchgeführten Lampenwechsel wird vorgeschlagen, daß 
zwischen der Lichtquelle (1) und dem Prisma (8) ein 
Glasfaserlichtleiter (5,6) angeordnet ist, dadurch dessen 
Zwischenschaltung das Licht zu einem homogenen Licht­
fleck auf dem Prisma konzentrierbar ist.
Patent EP-0326142-A3 (EP)
Title: Device for the attachment of the operating lever of a potentiometer, etc., to a bearing substrate
IPC: H01C10/32
Filed: 1989-01-27
Abstract: In order to attach a control element (control wheel) for potentiometers, rotary resistors and the like to a supporting base it is proposed that the control wheel be arranged opposite a sprung part and that the rotatable axle on the control wheel be guided by the potentiometer and the sprung part, which is preferably the dust protection cover of the potentiometer. A retaining arrangement is then attached to the free axle stump, which retaining arrangement produces prestressing between the sprung part and the control wheel. <IMAGE>
Patent EP-0353490-A3 (EP)
IPC: B29C51/22
Filed: 1989-07-07
Abstract: Bei einer Anlage zum Tiefziehen und Hinterschäumen von Polster­
bezügen sind die Tiefziehformen 12a, 12b auf einem Rundtisch 
angeordnet. Dabei ist neben dem Rundtisch 10 für die 
Tiefziehformen 12a, 12b eine stationäre Streckstempelstation 
20 vorgesehen, die alle an der Streckstempelstation vorbei­
geführten Tiefziehformen 12a, 12b auf dem Rundtisch 10 bedient.
Patent EP-0368364-A3 (EP)
Title: Builder for washing agents
IPC: C11D3/22
Filed: 1987-11-26
Abstract: Granular detergent builders comprise 70-80 wt.% finely divided zeolite, 2-3 wt.% nonionic surfactant, 0.5-5 wt.% carboxymethyl cellulose and/or methyl cellulose, 0-1 wt.% alkali, balance H2O. The zeolite is of formula (Q2/nO)x.M2O3.(SiO2/y, where Q is an n-valent cation exchangeable with Ca; x = 0.7-1.5; Me = Al or B; y = 0.8-6. Pref. the zeolite is powdered zeolite A with the particle size distribution described in DE2651485. The surfactant is an ethoxylated fatty alcohol or alkylphenol.
Patent EP-0334631-A3 (EP)
Title: Beam scanner
IPC: G02B26/10
Filed: 1989-03-22
Abstract: A light beam scanning apparatus comprising a 
rotatable holographic disk (4) having a hologram which is 
constructed by an interference of a reference wave (13) and 
an object wave (9), which is a coma wave, the coma wave 
having a focal length which decreases toward the outer 
periphery from the inner periphery of the holographic 
disk in a radial direction (4). The focal length has a 
different direction perpendicular to the radial 
direction, so that when the hologram of the holographic 
disk which rotates is reconstructed by a reconstruction 
wave, the scanning is effected by the beams diffracted 
by the hologram.
Patent EP-0336684-A3 (EP)
Title: Noise reduction in the playback of recorded sound
IPC: H03H21/00
Filed: 1989-04-03
Abstract: A method of noise reduction wherein two versions (10, 16) of the 
same original signal, for example of a recording, are 
simultaneously processed, one being supplied to a digital 
filter (18) and the other to a delay (12). The difference between the 
filtered input and delayed input gives an error signal, and the error 
signal is processed by a microprocessor programmed with an 
adaptive algorithm and fed back to vary the 
characteristics of the filter in such a manner as to 
reduce the error signal to a minimum, whereupon the 
digital filter provides the enhanced signal.
Patent EP-0341944-A3 (EP)
Title: Improvements in or relating to methods of and apparatus for registration
IPC: B23P19/00
Filed: 1989-05-08
Abstract: A method of and an apparatus for article registration are 
disclosed in which surface characteristics such as component 
locations of printed circuit boards are viewed and compared with a 
model. The differences so determined are stored for subsequent use 
in, for example, the placing of components on the boards.
Patent EP-0358528-A3 (EP)
IPC: A61K8/34
Filed: 1989-09-08
Abstract: An emulsion suitable for topical application to human skin or hair comprises, in addition to water from 0.01 to 20% by weight of a skin benefit ingredient, preferably a 2-hydroxyalkanoic acid having from 3 to 20 carbon atoms, or a salt thereof; from 0.1 to 20% by weight of polyoxyethylene-21-stearyl ether, as a principle emulsifier and from 0.5 to 70% by weight of an emollient oil.
Patent EP-0366437-A3 (EP)
Title: Imaging device
IPC: G03B27/32
Filed: 1989-10-25
Abstract: In an imaging device employing a plurality of 
recording sheets each of sheets (38,60) are arranged to be 
respectively traveled, provided are means for 
respectively monitoring an amount of traveling of the 
sheets, and means (112,118,122,128) for controlling the sheets 
so as to be traveled in such a manner that each of amount of 
traveling become similar to each other.  
     Thus, each of sheets are controlled to be 
precisely located when a visible image is formed on a 
surface of the one of sheets.
Patent EP-0370690-A3 (EP)
Title: A video and/or audio cassette assembly
IPC: G11B33/04
Filed: 1989-11-15
Abstract: A video and/or audio cassette assembly of the invention includes a 
rotatable recording disc (1) for recording and/or playback of visual and/or 
audio information, and a container (2, 3, 13, 15, 29, 30) for housing and 
protecting said disc (1) against damage or dust. The container is provided 
with apertures (4, 4a, 18, 18a) for affording access to a recording surface of 
the disc (1) for at least one write/read head of a recording and/or playback 
unit, and with apertures (5, 19) for affording access to the disc for drive 
means of a recording and/or playback unit for rotating the disc (1). 
Projections/plugs (35, 36, 37) are provided for sealing the 
apertures (4, 4a, 18, 18a, 5, 19) when the container is closed.
Patent EP-0372790-A3 (EP)
Title: Developing solution and pattern forming method using same
IPC: G03F7/30
Filed: 1989-11-28
Abstract: The invention relates to a developing solution of 
polydimethyl glutarimide containing acetone, ethyl 
alcohol, or propyl alcohol and, water, and alkali, and a 
pattern forming method using the same. According to the 
invention, a finer pattern than before may be formed by 
using PMGI resist film. At the same time, a liftoff 
process excellent in dimensional controllability and high 
in reliability than in the prior art will be realized. 
Besides, in the wet etching process of using the two-layer 
resist pattern of the invention as the mask on the GaAs 
substrate, since the adhesion of the lower layer resist to 
the substrate is superior, the recess width when etching 
the substrate can be stably controlled, so that a device 
of high performance may be obtained. Furthermore, in the 
process of using the PMGI resist film in the lower layer 
and the PMMA resist film in the upper layer, since the 
PMMA resist film and PMGI resist film possess mutually 
appropriate electron beam sensitivity and deep ultraviolet 
light sensitivity, mixed exposure by electron beam and 
deep ultraviolet light may be applied, so that a stable 
hybrid exposure may be effected at a high through-put.
Patent EP-0376692-A3 (EP)
Title: Improved screeding apparatus and method
IPC: E01C19/00
Filed: 1989-12-27
Abstract: An apparatus (10) and method for pivoting 
a screed assembly (450) during screeding of uncured concrete 
to maintain proper screeding contact by the screeding 
assembly by counteracting the force of concrete acting 
against the screed assembly as it is moved along the 
concrete. The apparatus includes a self-propelled support 
(12), a boom (170) and boom mount (172), and a pivot 
between the boom and the screed assembly. The axis of the 
pivot extends generally perpendicular to the screeding 
direction in which the screed assembly is moved. A power 
source, such as a pair of fluid cylinders, rotates the 
screed (472) about the pivot axis, preferably in response to 
an electro-hydraulic leveling sensor mounted on the screed. 
The lateral incline of the screed perpendicular to the 
screeding direction may be controlled about additional pivot 
axes orthogonal to the first. A power operated elevation 
control is responsive to a fixed laser beam reference plane 
positioned externally of the screed assembly. The boom is 
telescoping and has multiple sections (220,250) for 
extending and retracting the screeding assembly with 
respect to the support. The screed preferably includes a 
vibration assembly (484,492) vibrationally isolated (by 478) 
from the remainder of the screed for smoothing the concrete.
Patent EP-0378067-A3 (EP)
IPC: H01L21/027
Filed: 1990-01-02
Abstract: Es wird ein positiv arbeitendes strahlungsempfindliches 
Gemisch beschrieben, enthaltend im wesentlichen eine 
photoaktive Komponente und ein in Wasser unlösliches, 
in wäßrig alkalischer Lösung lösliches, zumindest aber 
quellbares Bindemittel, das dadurch gekennzeichnet ist, 
daß die photoaktive Komponente ein mehrfunktioneller 
α-Diazo-ß-Ketoester der allgemeinen Formel I ist 
  
worin  
R¹ einen aliphatischen, cycloaliphatischen oder ara­
liphatischen oder aromatischen Rest mit 4 bis 20 
Kohlenstoffatomen, wobei einzelne CH₂-Gruppen 
durch Sauerstoff- oder Schwefelatome oder durch 
- 
oder NH-Gruppen ersetzt sein können und/oder 
Ketogruppen enthalten,  
X einen aliphatischen, cycloaliphatischen, carbocyc­
lischen, heterocyclischen oder araliphatischen 
Rest mit 2 bis 22 Kohlenstoffatome, wobei einzelne 
 
 
CH₂-Gruppen durch Sauerstoff- oder Schwefelatome 
oder durch die Gruppen -NR²-, -C(O)-O-, 
-C(O)-NR²-, -C(O)- 
-, -NR²-C(O)-NR³-, 
-O-C(O)-NR²-, -O-C(O)- 
-, -O-C(O)-O- oder CH-Grup­
pen durch - 
- ersetzt sein können, worin R² und 
R³ voneinander unabhängig für Wasserstoff oder 
einen aliphatischen, carbocyclischen oder arali­
phatischen Rest stehen,  
m eine ganze Zahl von 2 bis 10 und  
n eine ganze Zahl von 0 bis 2  
bedeuten, mit der Maßgabe, daß  
m-n ≧, 2 ist.  
     Das strahlungsempfindliche Gemisch ist besonders ge­
eignet für die Belichtung mit Strahlung einer Wellen­
länge von 190 bis 300 nm.
Patent EP-0386581-A3 (EP)
Title: Device for optically detecting hold position of electronic component
IPC: H05K13/08
Filed: 1990-02-26
Abstract: A detecting device for detecting a position of an electronic 
component in which the component is held by a holder is 
disclosed. The detecting device includes a first light 
emitter (90, 104) for emitting a first radiation toward a 
vicinity of the electronic component (80), a second light 
emitter (66, 100, 106) disposed in the vicinity of the 
holder (78, 112), for absorbing the first radiation, and 
emitting a second radiation having a wavelength different 
from that of the first radiation, toward the electronic 
component, and a photoelectric device (84) disposed on one 
of opposite sides of the electronic component which is 
remote from the second light emitter. The photoelectric 
means is insensitive to the first radiation and receives a 
projection image of the electronic component formed by the 
second radiation.
Patent EP-0390182-A3 (EP)
Title: Resistor composition
IPC: H01C7/00
Filed: 1990-03-30
Abstract: A resistor composition comprising at least one 
electrically conductive powder selected from the group 
consisting of (a) tin oxide powder and (b) powder 
resulting from heat treatment of tin oxide and tantalum 
oxide, a glass frit and double oxide of tantalum 
dispersed in an organic vehicle. In the resistor 
composition, the mixing amount of the double oxide of 
tantalum is preferably 30 parts by weight or less with 
respect to 100 parts by weight of the sum of the 
electrically conductive powder and the glass frit. The 
resistor composition provides highly reproducible thick 
film resistors having superior properties and high 
stability over a wide range of resistance by addition 
of the tantalum double oxides.
Patent EP-0391310-A3 (EP)
IPC: B25J18/02
Filed: 1990-04-02
Abstract: Die Erfindung betrifft eine kombinierte Linear- und Drehein­
heit mit einem Grundkörper (10), an dem ein Schlitten (11) 
mit einem Hohlprofil verfahrbar ist. Innerhalb des Hohlpro­
fils ist eine Drehachse (12) angeordnet, die von einem Dreh­
antrieb (13) am Ende des Schlittens angetrieben ist. Diese 
Anordnung führt zu einer vorteilhaften, besonders leichten und 
kompakten Bauweise der Linear- und Dreheinheit.
Patent EP-0393636-A3 (EP)
Title: Liquid crystal composition and liquid crystal display using said composition
IPC: C09K19/42
Filed: 1990-04-18
Abstract: Liquid crystal compositions and display devices 
using the compositions are disclosed. The compositions 
contains, as main components, at least one compound 
of the general formula (I), and at least one compound of 
the general formula (II), or as well as the above 
components, at least one compound selected from the 
compounds of the general formulas (III), (IV) and (V), 
and/or at least one compound of the general formula (VI). 
  
(wherein all the symbols are as defined in the appended 
claims).
Patent EP-0406872-A3 (EP)
Title: Method for the preparation of a large-pored crystalline molecular sieve
IPC: B01J29/84
Filed: 1990-07-05
Abstract: 2.1 Molecular sieves which belong to the aluminosilicates of the zeolite type have long been known. They are distinguished by the fact that their structure consists of AlO2- and SiO2 tetrahedra whose sequence in the lattice leads to a characteristic pore structure. These and other properties give some of these solids outstanding properties in catalytic conversions and in material separation processes. However, the disadvantage of the molecular sieve types known to date is that their pore openings are between about 2.1 and 7.4  ANGSTROM  and they are therefore incapable of adsorbing molecules having effective cross-sections which are greater than these pore sizes. It is intended to develop an economically and ecologically advantageous process for the production of an aluminophosphate molecular sieve or its Si- containing modification which has a defined structure and pore orifices and whose diameter is at least 0.8mm. 2.2 The process is characterised in that the gel-like reaction mixture or components thereof is or are cooled to temperatures below 20 DEG C for a period of 15 minutes to 24 hours before it is subjected to hydrothermal crystallisation in a pressure vessel. 2.3 Preferred use of the molecular sieve as a catalyst, as a catalyst component, as a selective adsorbent or as a sensor matrix.
Patent EP-0395387-A3 (EP)
Title: Display drive circuit
IPC: G02F1/133
Filed: 1990-04-25
Abstract: A display drive circuit including a pulse generator 
means, a variable voltage source circuit including a 
first voltage source line (VD t ) with a variable 
potential, a second voltage source line (VS t ) with a 
potential different from the first voltage source line 
by a constant value, having a voltage waveform, a 
variation period and a variation component the same as 
the first voltage source line, and varying in potential 
with a potential level not more than the lowest 
potential level of the first voltage source line, and 
other voltage source lines with constant potential 
levels between the potentials of the first and second 
voltage source lines; and an integrated circuit having 
an electronic switch which switches at a constant period 
the connection of the voltage source line so as to make 
a plurality of constant waveform voltage and outputting 
these to a plurality of output terminals at constant 
phase difference.
Patent EP-0402003-A3 (EP)
Title: Apparatus for fluid-solid bed processing
IPC: A23F5/20
Filed: 1990-05-22
Abstract: An apparatus for a supercritical fluid-solid bed 
process such as for decaffeinating green coffee beans 
including an elongated cylindrical vessel (12) having a top 
(14) and bottom (22). The solids accumulate to form a 
fluid-solids bed (24) on the bottom of the vessel which 
includes a central bottom opening (38), a valve (40) for 
periodically allowing flow of the solids through the bottom 
opening and a frusto-conical bottom wall (44). A flow 
promoting insert (46) having a lower conical wall (48) is 
provided circumjacent to but spaced from the frusto-conical 
bottom wall. The lower conical wall is provided with a 
rougher surface than the adjacent frusto-conical bottom wall 
to promote uniform flow of solids. The fluid initially 
flows through the solids counter-current to the solid flow 
and is introduced to the vessel through means (30) located 
above the flow promoting insert (46).