baber/WOPTO huggingface dataset:
Patent EP-0249196-A3 (EP)
IPC: H01J61/04
Filed: 1987-06-09
Abstract: A discharge lamp device includes a tube, and a cathode 
disposed in said tube and made of a valence-compensated 
semiconductor ceramic material, or a forcibly reduced semi­
conductor ceramic material, or a valence-compensated and 
forcibly reduced semiconductor ceramic material. Since the 
cathode does not include an electron-emitting material, but 
uses a semiconductor ceramic material, no vapor is produced 
by the cathode or the cathode does not react with mercury 
vapor filled in the tube. Therefore, the discharge lamp device 
has improved characteristics such as heat resistance, chemi­
cal resistance, and discharge characteristics. The discharge 
lamp device is less costly because the semiconductor cer­
amic material used as the cathode is inexpensive.
Patent EP-0273231-A3 (EP)
Title: Regulating device, in particular for an ammoniac converter
IPC: B01J8/04
Filed: 1987-12-04
Abstract: In the converter having a process gas inlet and outlet, at least one heat exchanger and at least one catalyst bed as well as a further gas feed and having a central pipe and a process gas feed to the heat exchanger and/or catalyst bed, the heat exchanger and the first catalyst bed around the latter being arranged rotationally symmetrically to the central pipe, control gas, quench gas, a part of the process gas at a different temperature and/or under other conditions at a point of a reactor is to be added to the particular gas streams in such a way that the mixing-in and/or the by-pass line are designed for complete isolation, partial loading and/or complete opening. For this purpose, the central pipe (14) for temperature control as a control gas feedpipe completely penetrates the heat exchanger (4 and/or 5 and/or 6) and is provided at its lower end with controllable outlets (18) for at least partial mixing of the control gas with the process gas stream, before the latter flows through the catalyst bed (4), and/or for mixing the control gas stream with the process gas stream after the latter has passed through the catalyst bed (4) and the heat exchanger (7). <IMAGE>
Patent EP-0283579-A3 (EP)
Title: Raster scan display system with random access memory character generator
IPC: G09G1/16
Filed: 1987-12-15
Abstract: A raster scan display system uses a RAM character generator and a dual port video buffer random access memory. The dual port buffer has a shift register output for holding a row of data from the random access memory. The buffer has two partitions, one containing, at consecutive locations, character data and attribute data, the other, character data and font data. In a first mode of operation using the first partition, data transferred to the shift register comprises character data to address the character generator store and attribute data for combination with font data retrieved from the character generator store to provide video data. In a second mode, using the second partition, character and font data transferred to the shift register is used to address and update the character generator store.
Patent EP-0254492-A3 (EP)
IPC: B61L3/22
Filed: 1987-07-17
Abstract: A railway signalling system includes a plurality of track­
side equipments (11,12) and means (1,2,3,4,6,15,16) for trans­
mitting control information to the equipments and receiving 
status information therefrom, each of the trackside equip­
ments being provided with a respective microprocessor (13 
or 14) via which such control information is transmitted from 
the said means to the equipment and via which such status 
information is received by said means from the equipment.
Patent EP-0252035-A3 (EP)
IPC: F01M1/12
Filed: 1987-03-04
Abstract: A lubricant circulation system for an automotive vehicle in which a 
filter and container unit (23) is used. This unit can be unscrewed 
and be replaced with another one so that both lubricant and filter 
(24) can be quickly replaced.
Patent EP-0283719-A3 (EP)
Title: Metathesis polymerized cross-linked halogen-containing copolymer
IPC: C08G61/08
Filed: 1988-02-19
Abstract: A cross-linked copolymer containing repeating units 
derived from dicyclopentadiene and metathesis polymerizable 
halogen-containing cycloalkenes, a process for producing the 
copolymer, a process for producing a molded article from the 
copolymer and a polymerizable composition therefor.
Patent EP-0284922-A3 (EP)
Title: Improved apparatus, system and method for forming custom-made shoe inserts
IPC: A43D39/00
Filed: 1988-03-18
Abstract: A foot impression unit (10) is provided with an array of gauging elements (34), a control mechanism (36) for urging the gauging elements (34) into contact with the undersurface of a person's foot (12) to form an impression of the undersurface of the foot, a locking mechanism (38) for releasably locking and gauging elements in place to retain that impression, and a sensing mechanism (102) for scanning the gauging elements (34) to produce digital signals indicative of the positions of the gauging elements. These digital signals are stored and processed by a computer to provide a stored data record serving as a digital representation of the impression of the undersurface of the foot (12). The computer may also be employed to provide stored additional information for modifying that data record to compensate for a perceived defect of the foot (12). In response to the stored data record and any stored additional information for modifying that data record, a shaping unit shapes an insert blank to form a custom-made shoe insert conforming to the undersurface of the foot (12) and compensating for any perceived defect of the foot.
Patent EP-0315071-A3 (EP)
IPC: C07C47/457
Filed: 1988-10-28
Abstract: Verbindungen der allgemeinen Formel 
  
worin  
R¹ Hydroxy, nieder-Alkoxy, Amino, mono- oder di-nieder-­
Alkylamino;  
R² Wasserstoff, Alkyl, Alkoxy oder Halogen;  
R³, R⁴, R⁵, R⁶, R¹¹ und R¹² unabhängig vonein­
ander Wasserstoff oder nieder-Alkyl;  
R³ und R⁵ gemeinsam eine Methylen- oder Hydroxymethylen­
gruppe;  
R⁷, R⁸, R⁹ und R¹⁰ Wasserstoff oder nieder-Alkyl; oder  
R¹¹ und R¹² gemeinsam eine Oxogruppe oder Spiro-cyclo-­
niederalkyl; oder R¹¹ Wasserstoff und R¹² Hydroxy 
oder Acetoxy; und einer der Reste R¹³ und R¹⁴ 
Wasserstoff und der andere nieder-Alkyl oder Trifluor­
methyl bedeutet,  
sowie physiologisch verträgliche Salze von Carbonsäuren der 
Formel I können als Heilmittel, insbesondere zur Behandlung 
von Neoplasien, Akne und Psoriasis Verwendung finden. Die 
neuen Verbindungen können durch Aufbau der 
C(R¹³)=C(R¹⁴)-Doppelbindung nach Wittig aus einer 
entsprechenden bicyclischen und einer entsprechenden 
monocyclischen Komponente und gegebenenfalls nachfolgender 
Abwandlung funktioneller Gruppen hergestellt werden.
Patent EP-0285283-A3 (EP)
Title: Disc memory servo indexing system
IPC: G11B5/596
Filed: 1988-03-15
Abstract: A servo disc in a magnetic disc drive (10, 12, 
14) has pulses recorded in frames in concentric data 
tracks. Each frame includes first and second sync 
pulse groups of at least one sync pulse each, a first 
track alignment signal (quad) following the first 
sync group, and a second track alignment signal (Sig) 
following the second sync group. A guard Band and a 
data Track Zero are identified by eliminating one 
sync pulse in selected members of frames. Circuitry 
including monostable multivibrator (28), flip-flops 
(34, 38), and gates identify the Guard Band and Track 
Zero.
Patent EP-0284374-A3 (EP)
Title: Polymerizable vinyl compound having polythioether skeleton, process for preparation thereof and optical element made therefrom
IPC: C08G75/045
Filed: 1988-03-23
Abstract: A liquid polymerizable prepolymer having good 
storage stability is prepared by addition reaction of a 
polyene compound having a group 
  
(R₁ = H or CH₃) with a polythiol compound in the pres­
ence of a basic catalyst under such a condition that the 
ratio of the total number of vinyl groups to the total 
number of thiol groups is at least 2. The liquid 
polymerizable prepolymer is used alone or in combination 
with an aliphatic polyfunctional vinyl monomer having a 
refractive index of at least 1.45 for the manufacture of 
an optical element.
Patent EP-0292140-A3 (EP)
Title: Photoreceptor
IPC: G03G15/22
Filed: 1988-05-03
Abstract: A method and apparatus are described for the nondestructive readout 
of a latent electrostatic image formed on a sheet or layer of 
insulating material. A sheet or layer (419) of semiconductor material is 
disposed in relatively close proximity 
to the insulating material (413, 421). A 
latent electrostatic image formed on 
the insulating material (413) (by any 
known means) causes a surface depletion layer to be produced by 
induction at the surface of the semiconductor material (419). The location 
and distribution of the accumulated charges on the semiconductor 
material are read out as analog electrical signals corresponding to the 
AC surface photovoltage induced on the semiconductor material as the 
semiconductor material is scanned with a low intensity modulated light 
beam of appropriate wavelength, the magnitude of the analog signals 
depending on the local charge density. The analog electrical signals 
so obtained are then digitized, processed and stored and/or displayed.
Patent EP-0295073-A3 (EP)
IPC: C07K16/00
Filed: 1988-06-08
Abstract: Chromatographic material having the general formula S-B-X-Y-L where S is a solid support, B is a binding group, X is a substantially non-ionic hydrophilic organic spacer, Y is a coupling group and L is an affinity ligand. The chromatographic material is substantially free of non-specific adsorption and is stable at high pH.
Patent EP-0305214-A3 (EP)
Title: A polycarbonate-made optical article and method of preparation therefor
IPC: G11B7/24047
Filed: 1988-08-26
Abstract: The invention provides an optical article, such as 
optical disc substrates and optical fibers, made of a 
polycarbonate resin suitable for manufacturing articles for 
optical applications in respect of the high mechanical 
strength, e.g., high impact strength, and low birefringence 
by virtue of the unique molecular structure having molecular 
chain ends stoppered with 4-cumyl phenol as the chain-­
terminal stopping agent in the polycondensation reaction 
of a dihydric phenol compound, e.g., bisphenol A, and 
phospgene along with a narrowly specified viscosity-average 
molecular weight in the range from 10,000 to 17,000.
Patent EP-0307226-A3 (EP)
Title: Process for the preparation of a macrolide compound
IPC: A01N43/90
Filed: 1988-09-09
Abstract: A process for preparing the compound of formula (I) <CHEM> which comprises treating the corresponding 23 alpha - compound sequentially with (i) oxalyl chloride and (ii) 2-mercaptopyridine-N-oxide, a catalytic amount of an organic base, and a thiol.
Patent EP-0313231-A3 (EP)
Title: Light piping substrate for contact type image replication
IPC: G02B6/08
Filed: 1988-09-30
Abstract: Apparatus (10) for the photogeneration of 
electrical signals representative of a detectable 
condition of an image-bearing surface (17). The 
apparatus includes a transparent substrate upon which 
an array (11) of spaced, thin film photosensitive 
elements (32-48) is deposited. A substantially 
loss-free, light transmitting faceplate (18), 
preferably formed from a fused array of oriented 
optical fibers (l8 a ) is operatively spaced from that 
array of photosensitive elements.
Patent EP-0290412-A3 (EP)
IPC: G08B17/103
Filed: 1988-05-06
Abstract: A measuring head, e.g. for a smoke detector, 
includes a tubular holder (1) intended for being 
disposed in a ventilation duct for being passed through 
by the air which is to be monitored. The portion of 
the holder to be introduced in the ventilation duct is 
ended by an optical reflector (6) defining one end of a 
measuring path while the opposite defining surface of 
the measuring path includes a beam transmitting means 
and a detector means. The peripheral surface of the 
holder around the measuring path has a number, preferably 
six, of rows of holes (2) with at least six holes in each 
row. The holes in a row are staggered relative the holes 
in adjacent rows, the staggering amounting to between 
1/4 and 1/3 of the hole width. At least 1/4 of the 
peripheral surface of the holder introduced in the 
ventilation duct and surrounding the measuring path is 
covered by the holes.
Patent EP-0326795-A3 (EP)
Title: Use of polyglycol ethers as anti-foaming agents in detergents
IPC: C11D3/00
Filed: 1989-01-02
Abstract: Polyethylene glycol ethers of the general formula (I> R1O-(CH2CH2O)n-R2 (I> in which
 R1 is a straight-chain or branched alkyl or alkenyl radical with 20 to 28 C atoms,
 R2 is an alkyl radical with 4 to 8 C atoms and
 n is a number from 6 to 20,
 are employed as foam-suppressant additives for low-foam cleaning agents.
Patent EP-0324363-A3 (EP)
Title: Demand assignment multiple access control system
IPC: H04B7/155
Filed: 1989-01-04
Abstract: A DAMA control system for an SCPC satellite 
communication system includes first and second control 
stations which can independently perform centralized DAMA 
control through corresponding common signaling channels, a 
large number of slave stations capable of receiving data 
through either common signaling channel, and a satellite 
station. While one control station performs DAMA control, 
the other control station performs a backup operation. 
When one control station loses a control function, the 
other control station takes over centralized DAMA control.
Patent EP-0344539-A3 (EP)
Title: Control technique for an rf communication system
IPC: H04B1/10
Filed: 1989-05-19
Abstract: An interference detecting circuit is used in a cellular radiotelephone 
communication system which employs angular modulated frequencies in order to 
determine when to change the communication process so as to maintain the 
integrity of the communication path. For example, when the circuit detects an 
excessive amount of multipath or co-channel interference on a channel serving an 
active call, the system attempts to handoff the call to another channel. Also, when 
the circuit detects an excessive amount of multipath or co-channel interference on a 
channel serving an active call, the system may decrease the effective data bit rate. 
The circuit includes a logarithmic envelope detector 150 for receiving a channel's 
angular modulated signal and for providing a log envelope output signal, a high 
pass filter 152 for removing a particular range of undesired frequencies from the log 
envelope output signal, and a level detector 154 for indicating the level of filtered 
output signal. The output of the level detector represents the amount of interference 
on the angular modulated frequency signal. A microcomputer analyzes the amount 
of interference to determine when such communication process changes are 
desired or to determine if a handoff is required.
Patent EP-0355294-A3 (EP)
IPC: F17C3/04
Filed: 1989-06-14
Abstract: Formkörper, vorzugsweise plattenförmig, für die Verwendung 
als Wärmedämmung, bestehend aus 
   a) einem feinverteilten, pulverförmigen bzw. faserförmigen 
Stoff,    b) einer mikroporösen Umhüllung und    c) einer gas- und wasserdichten Umhüllung.     
     Der Formkörper wird hergestellt, indem man den 
pulverförmigen bzw. faserförmigen Stoff gegebenenfalls 
trocknet, gegebenenfalls in eine mikroporöse Umhüllung 
einbringt, gegebenenfalls verpreßt und gegebenenfalls dann 
trocknet. Danach wird der pulverförmige Stoff mit der 
mikroporösen Umhüllung in eine gas- und wasserdichte 
Umhüllung eingebracht. Diese gas- und wasserdichte 
Umhüllung wird gegebenenfalls evakuiert und verschlossen.
Patent EP-0346918-A3 (EP)
Title: Device for cache buffer management
IPC: G06F12/0866
Filed: 1989-06-16
Abstract: In a device for managing a disc cache buffer a cell 
address decoder which generates a unitary cells select 
and a function control logic is provided which writes a 
data value to a cell of the buffer which is addressed 
by the positional location address via the cell address 
decoder. The function control logic allows to find a 
data value if present in one of the cells and to return 
a positional location value relativ to the cell 
address.
Patent EP-0353579-A3 (EP)
Title: Verfahren und Vorrichtung zum Auftragen von flüssigen, pastösen oder plastischen Substanzen auf ein Substrat
IPC: B05C1/08
Filed: 1989-07-24
Abstract: Auf ein Substrat (1) wird die Substanz 
aufgeschmolzen, beheizt und durch ein perforierten 
Zylinder (3) auf das Substrat (1) aufgebracht. An diesem 
Zylinder (3) haftet das Substrat (1) über eine gewisse Strecke, 
bevor es abgezogen wird. Diese Haftung des Substrates 
am Zylinder (3) wird bestimmt und als Steuersignal für die 
Regelung der Beheizung der Substanz verwendet.
Patent EP-0359032-A3 (EP)
Title: Method for manufacturing pre-expanded particles of polyolefin resin
IPC: C08J9/18
Filed: 1989-08-30
Abstract: The present invention relates to a method for 
manufacturing pre-expanded particles of polyolefin resin 
from strand pellets having Tm in melting temperature 
measured by DSC method, wherein the expansion ratio E of 
the pre-expanded particles of the resin, the length ℓ and 
the average diameter d of the strand pellets after having 
been heated at a temperature (T, - 5°C) are in the following 
relational expression.  
0.04E + 0.9≦ ℓ/d < 0.15E + 1.3  
According to the method of the present invention, it is 
possible to manufacture uniform, spherical pre-expanded 
particles easily at a moderate cost and obtain a fine-­
looking expansion-molded articles.
Patent EP-0364998-A3 (EP)
Title: Recording-reproducing apparatus for the gapless recording and/or reproducing of messages
IPC: G11B15/02
Filed: 1989-10-19
Abstract: Until now, two separate recording-reproducing apparatuses have been necessary for the gapless recording and/or reproducing of messages. In the recording mode, at the end of the recording time of the one recording medium a changeover was performed on the respective other recording-reproducing apparatus manually by the user or by a control device connected via a connecting cable to the two recording-reproducing apparatuses. A conference-recording system is also known in which an overlapping recording was facilitated by delayed switching off of the respective recording-reproducing apparatus. In order to reduce the outlay in terms of circuitry of the recording-reproducing apparatuses and to offer a high degree of user-friendliness, a single recording-reproducing apparatus is provided which has at least two recording means and a control device for switching over between two drives, the drives being driven by the same motor. The control device derives the control commands for switching on and switching over the respective drives from the velocity of rotation of the winding drives of the drives. Thus the recording-reproducing apparatus permits the user to make gapless, in particular overlapping, recordings of messages in a simple manner. The recording-reproducing apparatus can be used, for example for recording telephone conferences or court proceedings and the like. <IMAGE>
Patent EP-0373587-A3 (EP)
Title: Aryloxy alkanols as anti-retrovirus agents
IPC: A61P37/00
Filed: 1989-12-12
Abstract: Aryloxyalkanol derivatives having the formula  
Ar-O(CH₂) n OH  
wherein n is an integer from 3 to 8 and Ar is (1) 1- or 
2-naphthalenyl, (2) phenyl optionally substituted by 
from 1 to 3 C₁₋₄ lower alkyl groups, or (3) a diphenyl 
moiety of structure 
  
wherein Y is a bond, CH₂ or CH₂O, and esters thereof 
have antiretrovirus activity and are effective in a 
method for treatment of a retrovirus infection.
Patent EP-0378858-A3 (EP)
IPC: C08G64/42
Filed: 1989-12-28
Abstract: Thermoplastic branched polycarbonate resins are 
prepared by equilibration of linear aromatic polycarbonate 
with polyhydric phenol having more than two hydroxy groups in 
the presence of a catalyst.
Patent EP-0352004-A3 (EP)
Title: Method and apparatus for endpoint detection in a semiconductor wafer etching system
IPC: G01B11/02
Filed: 1989-07-11
Abstract: The disclosure relates to a method for endpoint detection in a semiconductor wafer etching ysstem characterised in the steps of: 1) scanning a semiconductor wafer (10) with a narrowly focussed laser beam (24); 2) analyzing a reflected portion of the beam to determine a preferred parking spot (P) on a preferred flat area (#8) of the wafer; 3) parking the beams at the preferred spot; and 4) analyzing the reflected portion of the beam to determine when the preferred flat area has been etched through. The beam spot (18) of the laser beam (24) is amller than the width of the preferred flat area to eliminate noise generated at the transition boundaries of the flat area. Preferably, the wafer is scanned several times along the same beam path to permit the comparison of several scans to determine the preferred parking spot. The apparatus includes a beam forming assembled (62, 64, 66); a scanning assembly which causes the laser beam to scan across the wafer; a detection assembly (76) responsive to a portion of the laser beam which is reflected off the wafer; and a controller (78) which operates the laser and the scanning assembly and which is responsive to an output of the detection assembly. When output of the detection assembly indicates a cessation of the characteristic etching curve, the controller develops an endpoint detection signal which can automatically shut down the etching system. <IMAGE>   <IMAGE>
Patent EP-0349373-A3 (EP)
IPC: C07C17/00
Filed: 1989-06-16
Abstract: La présente invention concerne un procédé de préparation de 
dérivés ortho-substitués du fluoro- ou des alkylbenzènes par passage 
par un intermédiaire disilicié, fonctionnalisation du dérivé et 
désilylation.  
     Elle permet d'atteindre des dérivés ortho-substitués à partir 
de composés de départ essentiellement para-directeurs.
Patent EP-0386655-A3 (EP)
IPC: C09C1/50
Filed: 1990-03-02
Abstract: A process for producing carbon black by means of a 
reactor comprising a first reaction zone in which a 
mixture of a fuel and an oxygen-containing gas, is 
burned, a second reaction zone having a throat in which 
the resulting high temperature combustion gas is mixed 
and reacted with a hydrocarbon feedstock, and a third 
reaction zone provided with a quenching water spray for 
terminating the reaction, which comprises directing the 
high temperature combustion gas formed in the first 
reaction zone to form an axial stream flowing in 
substantially the same direction as the axial direction 
of the reactor, dividing the axial stream into at least 
two independent streams differing in the spouting 
velocity and/or the spouting gas temperature, introducing 
the divided axial streams into the second reaction zone, 
and, in the second reaction zone, introducing the 
hydrocarbon feedstock from nozzles in a direction 
traversing the axial streams of the high temperature 
combustion gas.
Patent EP-0391329-A3 (EP)
Title: Process for preparing alkylphosphonous acids diesters and/or dialkylphosphinous acids esters
IPC: C07F9/48
Filed: 1990-04-03
Abstract: The abovementioned compounds are prepared by reacting trialkyl phosphites with phosphorus trichloride and/or monoalkyl esters of dichlorophosphinous acid at -20 to +100 DEG C followed by immediately reacting the product with alkylmagnesium chloride or alkylmagnesium bromide at -60 to +50 DEG C, followed by removing the desired compounds from the distillate of the volatile compound. This allows dialkyl esters of alkylphosphonous acids and monoalkyl esters of dialkylphosphinous acids to be obtained without complicated and costly purification of intermediates. The phosphorus-containing esters obtained, in turn, are valuable intermediates, for example for the preparation of flameproofing agents and crop protection agents.