baber/WOPTO huggingface dataset:
Patent EP-0375097-A3 (EP)
Title: Stereolithographic beam profiling
IPC: B29C67/00
Filed: 1989-04-17
Abstract: An apparatus and a method for profiling the intensity 
of a beam (50) and thus measuring the overall intensity and 
power of a beam are disclosed that have particular use in 
stereolithography. A beam sensor comprising a pinhole in 
a plate (40) and a photodetector (55) behind the pinhole measures 
the intensity of portions of a beam as the beam is moved 
over the beam sensor. Software associated with the 
sensors in a computer controls the scanning mechanism for 
the beam so that the beam is shifted to find the pinhole 
and move across it in order to develop the intensity 
profile. The invention can be used to detect drift in the 
scanning mechanism, determine the focus of the beam, and 
predict the depth and width of photopolymer cured by the 
beam. A related apparatus and method for calibrating and 
normalizing a stereolithographic apparatus is described, 
and a related apparatus and method for correcting for 
drift in production of objects by stereolithography, is 
also described.
Patent EP-0352107-A3 (EP)
Title: Thermally releasable flavor source for smoking articles
IPC: A24D1/22
Filed: 1989-07-20
Abstract: A flavour source to be used as a thermally 
releasable flavourant for smoking articles that do 
not combust tobacco. The material includes tobacco 
particles (346), an aerosol precursor (341) that forms 
an aerosol upon exposure to heat, and a filler material 
(343) that absorbs and radiates heat to minimize the 
likelihood that the flavour material will ignite. The 
material is mixed in an extruder (300), extruded through 
a die (320), and cut into pellets (329) having a 
substantially uniform shape. The pellets are loaded into 
a chamber for inclusion in a smoking article as a 
flavour generator.
Patent EP-0353974-A3 (EP)
Title: Copy protection of multi-colour documents
IPC: G03G21/04
Filed: 1989-07-31
Abstract: A security document printed in colour is provided 
with a security area intended to defeat copying on a dot-­
image type colour copier. Such area comprises a line 
pattern printed in a dark neutral colour on a light 
neutral colour and is such that colour copying creates a 
multi-coloured noire pattern not present in the original. 
The line pattern may include areas of rulings which 
differ in pitch, line thickness and/or orientation. A 
security area in the form of a printed disc of radial 
tapering lines is also disclosed.
Patent EP-0368611-A3 (EP)
Title: Reeling system for cables
IPC: H02G11/02
Filed: 1989-11-07
Abstract: In a cable reeling system, especially for multi-core 
cables (7) that are not only tensile but also include signal 
line conductors and/or conduits for transmitting signals 
or fluids along the cable, the cable (7) is paid out and hauled 
in by a motor-driven drum (1) acting as a winch barrel but the 
proximal end (16) of the cable (7), instead of terminating on the 
winch barrel (1), is continued therefrom to be stowed around 
a fixed drum (2), with the cable length (8) between the fixed drum (2) 
and the rotary barrel (1) being reeled onto and paid off the 
fixed drum (2) by a rotating planetary assembly (3,4) around and 
coaxial with the fixed drum (2). The rotating barrel (1) and the 
fixed drum (2) may be coaxial with one another, with the planetary 
assembly (3,4), consisting of a planet carrier (4) and an array of 
planet drums (3) thereon, disposed in the annular confines within 
the rotary barrel (1) and around the fixed drum (2). The cable (8) 
wrapped around and leaving the fixed drum (2) is first wrapped 
around the planet array (17) in the reverse direction of wrapping 
and then is led out through the periphery of the rotary 
barrel (1) to a fixed anchorage point (10) on the circumference of 
the barrel (1) where it unites with the external length (7) of cable 
that is paid off and reeled onto the rotary barrel (1). The 
winch barrel (1) is motor-driven and the planetary assembly has 
a torque applied to it always in the same direction to keep 
the inner length (8) of cable inside the rotary barrel (1) taut.
Patent EP-0358566-A3 (EP)
Title: Sheet switch
IPC: H01H13/02
Filed: 1989-09-05
Abstract: A sheet switch comprises a pair of flexible insulative films 
(13,14), one of which (13) is provided with a plurality of 
electrodes (16), resistances (17) connected to the electrodes, 
respectively, and line patterns (18) for externally connecting the 
electrodes via the resistances. The other insulative film (14) is 
also provided with a plurality of second electrodes (19) at 
positions corresponding to the first electrodes (16), respectively, 
and a space is defined between each of the facing electrodes 
(16,19). The line pattern is a laminated structure consisting of an 
underlayer formed of a low resistance paste and an upper layer 
formed of a high resistanoe paste coated over the underlayer. The 
underlayer formed of a low resistance paste is partially 
disconnected to define a gap, so that the resistance is formed 
integrally with the upper layer formed of a high resistance paste 
at a position corresponding to the gap.
Patent EP-0354197-A3 (EP)
Title: An apparatus for purification of gases
IPC: F23G7/06
Filed: 1989-06-30
Abstract: An apparatus for purification of gases comprises a combus­
tion device, through which a gas is intended to be conducted for 
combustion and/or conversion of contaminants in the gas. Means are 
provided to conduct the contaminated gas in one direction (3) through 
one part (5) of the combustion device (2) and in opposite direction 
(7) through a second part (9) of the combustion device. As an 
alternative, the oppositely directed flow can be constituted of a 
second medium. Said means and/or the combustion device are designed 
such that each of said opposition directed flows will successively 
pass through different parts of the combustion device.
Patent EP-0381067-A3 (EP)
Title: A method for registration of cad model to video images with added clutter
IPC: G06V10/24
Filed: 1990-01-26
Abstract: A technique for position-finding on a manufactured device such as 
an integrated circuit ("IC") or a printed circuit board ("PCB"), 
relating the observed image to a description such as the CAD database 
that was used to create the devices. The technique contemplates 
providing an optical image of the surface of the device, obtained  with 
an imaging device such as a video camera and a microscope, generating a 
synthetic CAD image from the CAD database, subjecting both images to a 
filtering operation (Laplacian of Gaussian convolution), binarizing 
(taking the sign of) the results, and correlating the two filtered  and 
binarized images (referred to as "processed" images) to determine 
relative alignment. One application of the invention is to allow 
precision  positioning of a positioning head relative to a workpiece 
such as placing an IC device (12) on a PCB (15). A positioning head (17) 
to which a camera (22) is mounted  is driven to the approximate 
location of the IC site by a positioning mechanism. The positioning 
mechannism need not be accurate for large increments of travel, but must 
be capable of providing small relative displacements with high 
precision. The camera image of the area near the IC site on the PCB is 
filtered and binarized, and correlated with a processed CAD image of 
the region surrounding the IC site. This establishes the actual position 
of the camera (and therefore the positioning head). The positioning 
head is then moved by the indicated amount.
Patent EP-0392431-A3 (EP)
IPC: B29C65/78
Filed: 1990-04-09
Abstract: The present invention relates to a seaming 
apparatus, a method for producing a continuous sheet of 
thermoplastic material (18) having a predetermined width 
from a plurality of elongated thermoplastic tapes (20) each 
having edges defining a transverse width less than the 
predetermined width and each tape (20) being wound on a 
roll (28). The seaming apparatus comprising a frame (22) having 
a seaming zone (24). A feed device is mounted on the frame (22) 
for rotatably supporting a plurality of rolls (28) in a 
predetermined relationship. An alignment mechanism (30) is 
mounted on the frame for receiving the tapes (20) from rolls (28) 
thereof supported by the feed device and for guiding 
the tapes (20) into the seaming zones (24) along paths defining 
a predetermined transversely adjacent relationship when 
the edges of the tapes position adjacent one another 
form a contiguous area. Thermal heating elements are 
provided in the seaming zone (24) for thermally joining the 
contiguous areas of the tapes (20) to form the continuous 
sheet of thermoplastic material (18). A take-up roll is 
rotatably mounted on the frame for receiving the 
continuous sheet of thermoplastic material (18) from the 
seaming zone (24).
Patent EP-0403929-A3 (EP)
IPC: C07C213/02
Filed: 1990-06-12
Abstract: N-n-propyl-N-(2,4,6-trichlorophenoxy)-ethyl amine is 
prepared by reacting 2-phenoxy ethanol with thionyl 
chloride in th presence of a catalytic amount of 
tetraalkyl ammonium halide optionally in the presence of 
a solvent to form 2-phenoxy ethyl chloride; selectively 
chlorinating the 2-phenoxy ethyl chloride with chlorine 
at a temperature from 0°C to 60°C in the presence of a 
catalytic amount of urea to form 2-(2,4,6-trichloro 
phenoxy)- ethyl chloride; reacting the 2-(2,4,6 -tri­
chloro phenoxy)ethyl chloride with n-propyl amine at a 
temperature of from 20°C to 150°C, optionally in the 
presence of water; and recovering the N-n-propyl-N-2-­
(2,4,6-trichlorophenoxy)-ethyl amine formed.
Patent EP-0414084-A3 (EP)
Title: Device and method for spraying of a dental moulding material
IPC: A61C9/00
Filed: 1990-08-11
Abstract: The device for spraying on a dental impression compound consists of a cylindrical handpiece (1) with a cartridge (5), situated inside it, for the provision of the impression compound, a curved and conically tapering headpiece (3), which can be mounted on the handpiece (1) by means of a bayonet joint or screw joint (2) and has a likewise conically tapering tubular cross-section (4), and a spray nozzle which is arranged on the headpiece (3) and designed as a two-phase nozzle (9, 10, 14). The supply of the impression compound to the spray nozzle takes place by means of an elastic hosepiece (7), at the front (distal) end of which a conical or pyramidal nozzle member (9) is arranged, which has air escape openings (11). At the same time the diameter of the nozzle member (9) must be greater than the smallest diameter of the conical tubular cross-section (4). The length of the elastic hosepiece (7) is dimensioned in such a manner that it is slightly compressed when the headpiece (3 ) is mounted, so that the nozzle member base (12) is pressed with its external periphery against the conical internal contour (4) of the headpiece (3).
Patent EP-0382505-A3 (EP)
Title: Virtual computer system having improved input/output interrupt control
IPC: G06F9/455
Filed: 1990-02-07
Abstract: A virtual computer system includes a 
plurality of virtual machines (#A, #B) running in a 
central processing unit (10, 50) with time shared, an 
input/output unit (5) generating an input/output 
interrupt request, and a specific instruction 
generating part (20) for generating a specific 
instruction indicating a priority to one of the virtual 
machines which is running. The system further includes 
a decision part (30) for determining whether the 
input/output interrupt request addressed to one of the 
virtual machines has a priority equal to that indicated 
by the specific instruction and for generating an 
interrupt accepting signal when the decision result is 
affirmative. Moreover, the system includes a monitor 
part (20) for transferring a right to use the central 
processing unit from the one of the virtual machines 
which is running to the one of the virtual machines 
which is addressed by the input/output interrupt 
request when the interrupt accepting signal from the 
decision part is supplied to the monitor part.
Patent EP-0396234-A3 (EP)
Title: One-way clutch assembly
IPC: G11B15/50
Filed: 1990-03-13
Abstract: In a reel assembly of a tape cassette a one-way clutch 
mechanism is provided which serves to prevent rotation of the reel 
in the direction required for the purposes of rewinding a tape 
thereon. The one-way clutch mechanism includes a slipway channel (80) 
which extends circumferentially of the axis of rotation of the 
reel. The reel assembly includes a first clutch member (34) which is 
designed to be driven by the power output shaft of the winding 
mechanism and a second member (36) which is designed to be held fast 
with respect to the cassette. A slipway channel is formed at an 
interface between the first and second clutch members such that a 
portion of the channel is formed in the first member and a portion 
of the channel is formed in the second member. A pawl displacing 
ring (40) is mounted in the slipway channel so that it bears against 
the second member and is drivingly connected to the first member 
by means of a pawl. The pawl (38) is pivotally mounted in the first 
member and is movable between a retracted position out of 
engagement with the second clutch member and an extended position 
in which it engages the second member to prevent relative rotation 
between the first and second members. The displacer ring serves 
to displace the pawl outwardly from its retracted position to its 
extended position in response to rotation of the first member in 
the second rotational direction.
Patent EP-0391774-A3 (EP)
Title: Procédé de synthèse de précurseurs de tamis moléculaires du type silicoaluminophosphate, précurseurs obtenus et leur application à l'obtention desdits tamis moléculaires
IPC: C01B39/54
Filed: 1990-03-30
Abstract: Procédé de synthèse de précurseurs de tamis 
moléculaires du type silicoaluminophosphate par 
chauffage à ≧ 100°C sous pression autogène d'un mélange 
réactionnel renfermant des sources de silicium, d'aluminium 
et de phosphore en présence d'un agent 
structurant organique et de l'acide fluorhydrique. Le 
précurseur obtenu peut être transformé en tamis 
moléculaire par calcination. Les tamis moléculaires du 
type silicoaluminophosphate sont utiles comme 
adsorbants et catalyseurs de transformation 
d'hydrocarbures.
Patent EP-0455256-A3 (EP)
Title: Glowplug
IPC: F23Q7/00
Filed: 1991-05-03
Abstract: In a spark plug for an air-compressing internal combustion engine, having a spark plug housing (3) with a connection device (5) for the spark current and having a spark tube (2) which is attached to the plug housing and is closed off at its one end facing away from the plug housing, a wire helical-shaped resistance element (4) being provided embedded in an electrically insulating material (7) in the spark tube (2), there is provision for the wire helical-shaped resistance element (4) to be concentrated spacially on the area of the end of the spark tube (2) facing away from the plug housing (3). 
<IMAGE>
Patent EP-0460916-A3 (EP)
Title: Format and method for recording digital data on record disks with a pre-erasure need to save extra rotations
IPC: G11B7/007
Filed: 1991-06-04
Abstract: A storage medium, such as a rotatable disk having a signal-storing magneto-optic layer, stores a large plurality of data records in a plurality of tracks. The erasure status of portions of each track is indicated by an erasure indicator (E) located between two predetermined data records in each track. The erasure indicator indicates the erased status between a last data record in each track and the end of the track when moving in a direction of recording signals on the storage medium. The erasure indication points to an area of the track separated from the erasure indicator by the last data record of the track, i.e. a predetermined portion of the track remote from the erasure indicator. The recorder operative with a magneto-optic storage medium requires that the area of the storage medium to be written to be erased before writing or recording can occur; this requirement is termed "pre-write erasure" requirement. <IMAGE>
Patent EP-0489551-A3 (EP)
Title: Loudspeaker system having multiple subchambers
IPC: H04R1/02
Filed: 1991-11-29
Abstract: A loudspeaker system has at least a first electroacoustical transducer ( 12 ) having a vibratable diaphragm for converting an input electrical signal into a corresponding acoustic output signal. An enclosure is divided into at least first, second and third subchambers (V1,V2,V3) by at least first (13) and second (11) dividing walls. The first dividing wall (13) supports and coacts with the first electrical transducer (12) to bound the first and second subchambers (V1,V2). At least a first passive radiator (P1) intercouples the first and third subchambers. At least a second passive radiator (P2) intercouples at least one of the second and third subchambers with the region outside the enclosure. Each passive radiator (P1,P2) has an acoustic mass and each subchamber (V1, V2, V3) has an acoustic compliance. The acoustic masses and acoustic compliances coact to establish at least three spaced frequencies in the passband of the loudspeaker system at which the deflection characteristic of the vibratable diaphragm as a function of frequency has a minimum. <IMAGE>
Patent EP-0509294-A3 (EP)
Title: Cyclopentadienyl group 6b metal-alpha-olefin polymerization catalysts and process for polymerizing alpha-olefins
IPC: C08F4/69
Filed: 1992-03-27
Abstract: Disclosed is a catalyst system for the homopolymerization and copolymerization of alpha-olefins having 2-8 carbon atoms, said catalyst system comprising a cyclopentadienyl Group 6b metal hydrocarbyl compound in which the metal has an oxidation state of +3, said Group 6b metal compound being supported on an inorganic support. The catalyst system may also contain a Group 2 or Group 3 metal alkyl compound.
Patent EP-0507396-A3 (EP)
Title: Circuit arrangement
Inventor: BLOM ANTON CORNELIS
IPC: H05B41/18
Filed: 1992-03-30
Abstract: The invention relates to a circuit arrangement (II) for igniting a high-pressure discharge lamp (L) provided with transformer means (2), switching means (3) and capacitive means (4) for a periodic charge inversion via the transformer means and switching means. The circuit arrangement is also provided with peak current limiting means (Rs) to protect the switching means. According to the invention, voltage limiting means (7, 8) are added to the transformer means. It is achieved in this way that lamp ignition is to a high degree independent of lamp connection line impedances. <IMAGE>
Patent EP-0588425-A3 (EP)
Title: Electronic drive circuits for active matrix devices, and a method of self-testing and programming such circuits
Inventor: EDWARDS MARTIN JOHN
IPC: G09G3/36
Filed: 1993-09-09
Abstract: A shift register (30) or other electronic drive circuit (20, 30) for an LCD or other active matrix device (10) includes a series of circuit blocks (30A, 30B, etc) each having redundancy in the form of parallel circuit paths (31 and 32). When the circuit is turned on, self-testing and redundancy selection is carried out by individual test and control arrangements (34) which are associated with the blocks (30A, 30B, etc). The test and control arrangements (34) may comprise memory elements, such as a bistable, which electrically programme themselves in response to their electrical testing of the paths so as to generate a control signal at an output coupled to one or more switches (33). The switches (33) control which of the parallel circuit paths provides an output (23) to the active matrix device (10). Each test and control arrangement (34) also comprises a routing circuit controlled by the control signal, for transmitting the correct serial output of that block to all serial input of next block. <IMAGE>
Patent EP-0556011-A3 (EP)
Title: Ink jet recording apparatus
Inventor: OTANI TSUYOSHI
IPC: B41J2/165
Filed: 1993-02-09
Abstract: An ink jet recording apparatus having an ink recording head detachable therefrom, characterized in that power supply means to said ink recording head is shut off when the recording head is detached therefrom. <IMAGE>
Patent EP-0576237-A3 (EP)
IPC: B65D53/08
Filed: 1993-06-21
Abstract: A removable seal (28) for the face of a printhead (10) is a laminate tab made of a 
flexible, tear resistant material (30) having a layer of low temperature melt material (32) on 
one side thereof. The seal (28) is molded to the face of the printhead (10) by applying heat to 
the laminate tab to reflow the low temperature melt material (32) onto the face of the 
printhead. The seal (28) extends beyond at least one side of the face of the printhead to form 
an easily graspable, removable tab. The seal is used during shipping and handling to prevent 
ink from leaking from the printhead and to prevent contamination and damage of the nozzles.
Patent EP-0659668-A3 (EP)
Inventor: RUSSEL STEVEN MATTHEW
IPC: B41J13/00
Filed: 1994-10-17
Abstract: An image forming apparatus includes a finite length
recirculating duplex path (69) without a duplex tray and having an
inverter (68). A receiving sheet is delayed in the inverter (68) by a
time which is variable in order to vary the recirculating path time.
Preferably, the time is varied according to the length of receiving sheet
used so that maximum usage can be made of the image forming
apparatus. 
     A preferred inverter includes entrance (23) and exit (25) nips
and a stop (3) at the end of a paper chute. The stop (3) is positioned to
receive the leading edge of a sheet fed into the chute and hold the sheet
through a variable time delay. The stop (3) is then moved toward the
exit nip at the end of the time delay to begin to move the receiving
sheet out of the inverter. The receiving position of the stop (3) is
variable to receive sheets of different intrack length.
Patent EP-0656697-A3 (EP)
Inventor: GANS MICHAEL JAMES
IPC: H04B7/10
Filed: 1994-11-23
Abstract: A system for inducing rapid fading in wireless communication systems
(10), such as digital radio and television transmission is described. Orthogonal
polarization from antennas (30,32) combined with time varying offsets introduced by
mixer (24) and oscillator (26) are combined to ensure rapid fading and result in
improved signal reception at receiver antenna (35).
Patent EP-0642878-A3 (EP)
Title: Device for spot welding of structures formed of pressed sheet metal elements.
Inventor: ROSSI CRISTIANO
IPC: B23K9/007
Filed: 1994-04-14
Abstract: In a welding station (1), particularly for motor-vehicle bodies, the elements to be welded are locked in a precise position by locking devices carried by locating gates (17, 18). There are provided a number of pairs of locating gates (17, 18), corresponding to the number of different types of structures to be welded on which the station must operate. The gates (17, 18) are mounted on powered carriages (20) which are guided longitudinally on both sides of the conveyor line (2) to allow the pair of gates which are in the operative position to be rapidly interchanged. The elements of the structure to be welded reach the work area suspended to a hook (6), without being preliminarly connected to each other. <IMAGE>
Patent EP-0751693-A3 (EP)
Inventor: GRADISCHNIG KLAUS DIPL-ING
IPC: H04Q11/04
Filed: 1996-06-19
Abstract: Das ATM-Kommunikationsnetz (NW) weist eine Mehrzahl von über
zumindest ein Übertragungsmedium miteinander verbundene Netzknoten
(NK1, NK2, NK3) auf, welche entsprechend einer festgelegten
Außerband-Signalisierung jeweils wenigstens einen Signalisierungspunkt
darstellen und zwischen benachbarten Signalisierungspunkten
jeweils zumindest ein virtueller Kanal
auf dem jeweiligen Übertragungsmedium für die Übertragung von
nach einem Netzwerkprotokoll festgelegten Signalisierungsinformationen
und Netzmanagement-Informationen vorgesehen ist.
Dabei ist für die Übertragung der Netzmanagement-Informationen
zwischen benachbarten Signalisierungspunkten jeweils zumindest
ein weiterer virtueller Kanal auf dem jeweiligen
Übertragungsmedium reserviert, der exklusiv den Netzmanagement-Informationen
zugeordnet ist.