baber/WOPTO huggingface dataset:
Patent NL-2030483-A (NL)
Title: Test System and Method for Separating Vibration Signals of Tubular Water Turbines
Inventor: JIANJUN FENG
IPC: G06K9/00
Filed: 2022-01-09
Abstract: Disclosed is a hydraulic turbine vibration data acquisition test system for separating vibration signals of tubular turbines and a method for separating vibration signals of tubular turbines comprising the following steps: collecting vibration speed signals of runners by using a laser vibrometer to obtain a time series x(t) after sampling the vibration speed signals; then, the filtered vibration velocity signal X1(z‘) is obtained by filtering with a low-pass filter, and then the processed vibration velocity signal x1'(t) is obtained by averaging; and then whitening, variational modal decomposition and dimension reduction are carried out to obtain a new signal u’(z‘); finally u’(z‘) is subjected to independent component analysis, and the signal u is separated. The invention can quickly and accurately separate the vibration signal caused by cavitation from the general vibration signals.
Patent NL-2032349-A (NL)
Title: Method for area-wise inspecting a sample by means of a multi-beam particle microscope, computer program product and multi-beam particle microscope for semiconductor sample inspection
Inventor: DANIEL BOECKER
IPC: H01J37/26
Filed: 2022-07-01
Abstract: Method for area-wise inspecting a sample by means of a multi-beam particle microscope which operates using a plurality of individual charged particle beams, the method including the following steps: providing position data for a plurality of areas on the sample which are to be inspected; providing a first raster arrangement of the plurality of individual particle beams, with a single field of view (sFOV) on the sample being assigned to each individual particle beam; defining the position of a nominal scanning area in each single field of view (sFOV) in relation to the first raster arrangement, with the dimensions of the nominal scanning area being smaller than the complete single field of view (sFOV); assigning a nominal scanning area to an area to be inspected for at least one individual particle beam; determining an individual position deviation between the nominal scanning area and the area to be inspected, assigned thereto, for the at least one individual particle beam; changing the first raster arrangement in accordance with the respectively determined individual position deviation and thereby producing a second raster arrangement of the plurality of individual particle beams such that the assigned areas to be inspected can be scanned in a targeted fashion; and area-wise scanning the sample using the plurality of individual particle beams in the second raster arrangement.
Patent NL-6815165-A (NL)
Title: Hypotensive quinazoline derivs
IPC: A61K31/00
Filed: 1968-10-23
Abstract: Quinazoline derivs. of formulae (I) and (II) and their acid addn. salts X,Y = H, OH, halogen, CF3, 1-4C alkyl/alkoxy; or X+Y=benzo, CH2O2, C2H4O2. R1,2 = H, 1-6C alkyl, aryl/aralkyl opt. substd. hydrocarbyl, 2-4C alkenyl, (1-3C alkyl)2N-(2-4C)alkyl; or R1+2 = 3-7C cycloalkyl. R3 = H, 1-4C alkyl, aryl/aralkyl hydrocarbyl opt. substd. R4 = morpholine, 1-6C alkylpiperazine, 2-4C alkenylpiperazine, phenylpiperazine opt. substd. on Ph by halogen, CF3, 1-6C alkyl/alkoxy. (a) A mixt. of 2-diethylamino-6,7-dimethoxy-4(3H)-quinazolone.HCl (10 g) and POCl3 (50ml) is refluxed for 2 hrs. to give the 4-chloro cpd.(7.6 g). (b) the HCl salt of this (34.1 g.) in EtOH (500 ml) with 10% Pd-C (1.5 g.) is hydrogenated to give 2-diethylamino-3,4-dihydro-6,7-dimethoxyquinazoline. HCl (77%), crystd. from EtOAc-MeOH.
Patent NL-6909881-A (NL)
Title: Sewing machine pressure foot attachment
IPC: D05B29/12
Filed: 1969-06-26
Abstract: Sewing machine pressure-foot is attached to the pressure-foot pillar by a device comprising a pressure screw with a small wedge clamp. The pressure-foot is fixed without turning the screw by means of the wedge effect and if desired by magnetic force.
Patent NL-6910300-A (NL)
Title: Immersion casting
IPC: C08C19/30
Filed: 1969-07-04
Abstract: Production of heat-cured resinous articles uses casting techniques as with thermoplastic materials. A heated mould is immersed in a liquid mixture contng. polyfunctional prepolymers of which at least one is a polyfunctional polydiene having vinyl side groups at alternating C-atoms of an extended carbon main chain. The mixture also contains a polyfunctional org. chain extender capable to react with the functional gps. of the polydiene, and a free-radical peroxide initiator adapted to promote cyclisation and crosslinking of the vinyl side gps. The heated mould is kept in motion within the liquid mixture. The elastomeric casting so obtained is then released from the mould and finally heat-cured. The polyfunctional polydiene may be dihydroxy-1,2-polybutadiene and/or dihydroxy-3,4-polyisoprene. Th chain extender may be a substd. aliphatic or aromatic diisocyanate, dibasic acid halide, dibasic acid and/or diester compound. The process favours formation of elastomeric products, at relatively low temps. having uniform thickness. Curing is rapid. The mould may be kept at constant temp. which reduces fuel costs and duration of moulding cycles.
Patent NL-7003151-A (NL)
Title: Removing impurities from gaseous mixtures
IPC: B01D53/14
Filed: 1970-03-05
Abstract: An absorbent liquid is circulated through an absorption stage operating under pressure. The liquid is brought into direct and intimate contact with the gaseous mixture to remove impurities. The process includes a regeneration stage operating at a pressure considerably below that of the absorption stage. The liquid is regenerated by expelling or convertin the impurities previously absorbed. The spent liquid extracted from the absorption stage is fed into an ejector where it expands and causes a pressure drop used to remove gaseous impurities previously absorbed.
Patent NL-7005031-A (NL)
Title: Anti-parasitic oxa-and thia-diazoles
IPC: C07D209/42
Filed: 1970-04-08
Abstract: Anti-parasitic oxa- and thio-diazoles Cpds of formula (I) where R is (1-4C) alkyl opt. substd by OH or O acyl, R3 is alkanoyl opt. subst by one or more hal, formul, or aryl, and Z=O or S, are anti-bacterials, anti-protozoals, and anti-parasitic esp. useful for poultry.
Patent NL-7009061-A (NL)
Title: Ferromagnetic chromium dioxide by pressure - independent process
IPC: C01G37/02
Filed: 1970-06-19
Abstract: Chromium oxide with an average valency of 4 or higher, containing at least about 0.01 mol of nitrate(s) other than those of alkalimetals (partic. alkaline earth, Pb, Th, Cr, Mn, Ni, Tl) is calcined at 250-500 degrees C. Nitrate and oxide may be formed by using dichromate and nitric acid. Improvers containing an alkali metal (compound) and a heavy metal (or oxide, fluoride or sulphate) may also be present. Pressure may vary from reduced pressure of 400 mm Hg to overpressure; time of heating is 0.5-50 hrs. The product has rutile structure.
Patent NL-7309790-A (NL)
Title: Automatic picture animation - by digital computer generation of a sequence of frames
IPC: G06G7/22
Filed: 1973-07-13
Abstract: The equipment described is a comprehensive video picture processing apparatus. By means of input signals, either analogue from, e.g. potentiometers, or digital, sections of a single still picture taken on a television camera can be selected at will, and the corresponding video signal generated. By varying the control parameters the form - e.g. vertical and horizontal size and position, rotation, etc. - of the sections may be varied. Preferably the internal control of the equipment is executed digitally, by a central computer; by suitable programming and storage of control data a complete animated sequence of frames can be generated from the original still picture. Monitoring facilities for the display of sections of the picture are provided.
Patent NL-7613212-A (NL)
Title: Building construction with hexagonal ground plan - has flat sloping roof members to form max. living space within given surface area
IPC: E04H1/02
Filed: 1976-11-26
Abstract: The novel building design is intended for a dwelling house and enables the max. interior living space to be obtained in exchange for the min. expenditure in flat wall and roof members, and is esp. suitable for prefabricated work. The ground floor plan has a hexagonal outline for the side walls, one of which (1) has a long window for living room, the other rooms being, typically, an entrance hall and staircase (2) dining room (3) kitchen (4), study (6) and inside toilet (7). On the upper floor are a corridor (9) two bedrooms (10, 11) and bathroom/toilet (12). The roof construction resembles the apex of a cube, forming three approx. triangular roof members.
Patent NL-7702425-A (NL)
Title: Heat exchanger has outlet adjacent inlet - so that cooled fluids cool the inlet end to reduce thermal stresses
IPC: F28D7/06
Filed: 1977-03-07
Abstract: Heat exchanger comprises an outer shell, a bundle of heat exchange tubes extending longitudinally therethrough and a shroud disposed therebetween to form an annular passageway with teh shell. The shroud seals with the inlet nozzle for the tube bundle adjacent the outlet nozzle. Cooled fluid exiting from the tube bundle is directed along the annular passageway thereby cools the inlet end of the exchanger. By reducing the temp. gradient across the tube sheet thermal stresses and crevice corrosion are reduced.
Patent NL-7707222-A (NL)
Title: Flow line packing pairs of sugar cubes - uses parallel cubes, feed wrapping transverse to motion, and longitudinal lap sealing
IPC: B65B9/06
Filed: 1977-06-29
Abstract: The process is intended for flowline packing pairs of rectangular tablets (3, 4) partic. sugar cubes, using a strip of packing material (1) wrapped around the cubes, which are supplied in continuous flow. The string of packs (2) has an overlap seal join (5) in longitudinal direction (A) and individual packs are spaced with transverse seal joins (7) between them and sepd. by transverse cuts (6') in the areas (7). The cube pairs are fed-in along parallel lines and are wrapped around in a direction at right angles to the direction of movement (A) whilst lying side by side. The overlap (5) is pref. so arranged that there is an un-interrupted layer of wrapping material on one side of the pack.
Patent NL-7804737-A (NL)
IPC: F16H61/662
Filed: 1978-05-03
Abstract: The full throttle or kick down engine speed of a vehicle provided with an infinitely variable transmission had to be high because of performance requirements and had to be low because of comfort (noise level) requirements. To meet both requirements the full throttle engine speed depends on the actual transmission ratio in such a way that at lower transmission ratios the full throttle engine speed is increased.
Patent NL-7811301-A (NL)
Title: Composite insert type door lock - has insert with supporting and guiding portions for components fixed inside box portion
IPC: E05B9/02
Filed: 1978-11-15
Abstract: The door lock comprises a box-portion with cover plate, one or more bolts and the necessary mechanism. An insert (19) is mounted in the box-portion, having supporting, guiding and fixing portions (20-28) for the lock components and to secure the insert, and being in one piece. It can have protruding bosses fitting in mating holes in the box-portion on one side, while on the other it has holes for the cover plate fixing devices.
Patent NL-7900202-A (NL)
Title: Semiconductor deposition by thermal decomposition - using a silver plated deposition chamber
IPC: C23C16/22
Filed: 1979-01-10
Abstract: Pure semiconductor material is deposited by thermal decomposition of a gaseous cpd of the material on carrier bodies, heated to decomposition temp. which are mounted on a metallic base plate having electric connections thereon for heating the carrier bodies and pipe connections for supply and exhaust of the gaseous compounds. A first bell shaped cover forms a gas tight seal with the base plate to define a reaction chamber, the interior surfaces of the chamber being of silver or silver plated steel. A second bell shaped cover is spaced from the first cover to form a closed annular chamber therewith through which cooling fluid is circulated. An opening is provided at the apex of the covers which can be sealed by a closure member or by a finger heater. Previously quartz bells have been used to form the reaction chambers, which are difficult to produce in large sizes and susceptible to high pressure and temp changes which can lead to breakage. The carrier bodies are pref. silicon rods through which electric current are passed.
Patent NL-7908857-A (NL)
Title: Preventing bird strike of aircraft on take=off and landing - by bird-repelling signals triggered along runway by approaching aircraft
IPC: B64F1/36
Filed: 1979-12-10
Abstract: The arrangement is intended for preventing bird collisions during take-off and landing of aircraft (100,200,300,400). It comprises a number of probes (101,201,301,401), such as microphones, arranged along the runway to produce a signal of an approaching aircraft, which signal activates a number of warning units (103,203,303) such as loudspeakers, arranged along the runway at points ahead of the aircraft to drive the birds off. A frequency converter may be arranged in the connection (102,202, 302,402) between microphone and loudspeaker. The warning units may be light beacons or units detonating explosive charges, or they may reproduce pre-recorded bird-repelling sounds.
Patent NL-8105620-A (NL)
Title: Initial working method for bending material - bends at end over distance less than half that between rollers
IPC: B21D5/14
Filed: 1981-12-14
Abstract: The initial working method is for heavy plate, bar or profiled material to be bent between rollers. The material (5) is bent at one or both ends (6) initially over a length which is less than half the distance between the contact points of three rollers (2,3,4) in a rolling mill in which it is to be finally bent into shape. The alignment and initial bending can be carried out on the same rolling mill, one of whose rollers is adjustable in relation to the other two. A support (8) is inserted in the path of the material between the rollers so as to shorten the path between two of them.
Patent NL-8303375-A (NL)
Title: Sailing vessel with centre-board - has rudder on hull underside controlled by foot-operated plate
IPC: B63B35/79
Filed: 1983-09-30
Abstract: The sailing vessel comprises a hull with a mast hinging at the foot, a jib, a sail, and a centreboard extending through the full. A rudder (3,4) on the underside of the hull is controlled by a plate (15-19) moved by the feet, and has an accessory by which it can be fixed in the desired position. The plate can be flush with or protrude above the hull, and can have a foot-strap fitting between bosses on a flexible strip.
Patent NL-8400329-A (NL)
Title: Overheating protection circuit for electric blanket - has logic circuit cutting off power in response to small currents in detector wire
IPC: H02H5/04
Filed: 1984-02-03
Abstract: The output of a flip-flop, consisting of two NAND gates (P1,P2) cross-coupled by two resistors (R3,R4), is fed to a buffer consisting of two parallel NAND gates (P3,P4). The buffer output (13) is fed to a current supply cut-off circuit, e.g. a crowbar thyristor which blows a replaceable fuse. When the blanket is plugged into the mains supply, a reference voltage (Uref1) is applied to the flip-flop, setting it in the normal, i.e. safe, state. The hot-spot detector wire is connected via a diode (D1) and resistor (R2) to the flip-flop input. If the detector wire current exceeds 1 mA, the flip-flop changes state and operates the cut-off circuit. The flip-flop can be reset by operating a reset switch (S) which shorts out a dropper resistor (R1) between the setting reference (Uref1) and a second reference (Uref2).
Patent NL-8502326-A (NL)
Title: Coop construction for battery hens - has endless transporter belt below egg laying cells and endless conveyor for egg collection
IPC: A01K31/16
Filed: 1985-08-23
Abstract: Coop for laying hens has parallel arranged rows of egg laying cells separated by a partition wall (1). The bottom is formed by the top part of an endless belt which together with horizontal end rollers forms the egg transporter unit. The cells have transverse partitions (3), and the coop has a roof (4) with support legs (5). The nest bottom is formed of wire gauze, over which an endless transporter belt (6) moves, including end rollers (7,8) and drive motor (9). The arrangement also has a horizontal, egg collecting table. To the lower part of letter collecting box (14) is a suction pipe (15), joined to suction ventilator (16).
Patent NL-8600270-A (NL)
Title: Flower bunch assembly feed - includes transport belt for moving open containers containing flowers
IPC: A01G5/02
Filed: 1986-02-04
Abstract: The feed includes conveyor belt or chain (1) for moving open containers for the flowers. The containers include bottom (3) and two upstanding walls (4). On the small side are fitted two sponge rubber rollers (5). Loose flower bunches are pressed between the rollers to the bottom (3). Two take-off belts (6) are driven by a roller (7) and controlled by guide rollers (8,9), the container side walls have slots (10) wide enough to let rollers (9) and belts (6) pass freely. Pressure belts (12) prevent the arranged bunches to slide downwards during the handling process.
Patent NL-8600793-A (NL)
Title: Filtration unit contg. rotating drum with suspension supply - to filter inside perimeter, filtrate compartments successively connect, via ported duct, to filtrate outlet, gas outlet, pressure gas inlet
IPC: B01D33/00
Filed: 1986-03-27
Abstract: The suspension filtration unit comprises a vessel with connections for suspension supply, filtrate discharge, solid matter discharge, gas (air) supply and discharge and pressurised gas (e.g. air) supply. Filter elements are rotatable about a horizontal axis to pass through the suspension and emerge for removal and discharge of the filter cake settled thereon. During filtration, the discharge side of each element first connects to the discharge line via a port in an end wall rotating with the elements and a fixed ported disc and, thereafter, is connected to the gas discharge line and then to the pressurised gas supply via further disc ports. The elements form a cylindrical wall spaced from and secured in a drum rotating in the vessel. Circumferentially spaced radial partitions in the space between elements and drum define axial and radial filtrate passages connecting to circumferentially spaced ducts in the drum end wall near its centre. The opposite drum end wall contains a central opening through which the solids discharge connection extends outwards.
Patent NL-8602435-A (NL)
Title: Numbering machine for continuous perforated strip - has photocell detector sensing beam from light source passing through lines in perforations
IPC: G07B17/00
Filed: 1986-09-26
Abstract: The strip (12) of stamps for labels is fed from a supply reel (1), under a gravity tensioning roller (2) and across a horizontal plate, before passing over a speed control drive roller (8), another tensioning roller (11) and onto the take up spool (10). Above the plate are a photocell detector (3) and an ink-jet print head (4). The detector (3) output alters as the beam from a light source passes through the lines of perforations between the stamps. Electronic circuitry is used to operate the print head (4) at the correct time to print a number on each stamp. The correct time is a function of the strip travel speed and the perforation detection timing.
Patent NL-8700994-A (NL)
Title: Hydrostatic transmission system for endless tracked vehicle - is contained in compact cylindrical housing with relief valve returning some fluid to tank if manometer detects overpressure
IPC: F16H39/02
Filed: 1987-04-28
Abstract: The hydraulic fluid is pumped (17) from the tank (16) to an inlet manifold (19), via a filter (23) and cooler (24). The pressure at the manifold is monitored by a manometer (26); if the pressure is too great, a relief valve (25) allows some fluid to return to he tank. From the inlet manifold, the fluid pressure is applied, via non-return valves (21) to the high pressure (6, 7) or low pressure (8, 9) supply lines of the pump and motor assembly. The pumps (4, 5) and motors (11, 12) are connected in parallel between the high and low pressure lines, each of which is connected via a pressure relief valve (12) back to a return manifold (14). The pumps (4, 5) are operated by a motor (1) via a mechanical transmission (2) and common drive shaft (3). The motors (11, 12) are coupled directly to the shafts of the toothed wheels which drive the tracks.
Patent NL-8702552-A (NL)
Title: Container for contact lenses - has two storage boxes and lid with magnifying lens
IPC: A45C11/00
Filed: 1987-10-27
Abstract: The contact lenses storage container (1), has a lid of which one half has a magnifying lens (4), whilst the other half shows the letter L, indicating the left eye. The container lids have an internal thread, fitting to an external threaded spindle in the container. The container has two hollow sections (2) for storage of contact lenses (3). The containers are filled with an isotonic solution to keep lenses antiseptic, and non-irritating.
Patent NL-8802319-A (NL)
Title: Corner structure between flanged members - comprises coupling member with lips snapping into engagement with holes in flanges
IPC: E05D15/08
Filed: 1988-09-19
Abstract: The corner structure is for flanged profiled members (11,12) at right angles, each accommodating a panel (1). It comprises a coupling member (16) with portions (17,18) at right angles to each other and engaging in flanges (19,20) on the profiled members. A lip (21,22) on each portion snaps into engagement with a recess (23,24) in the flange. There can be a suspension pin (25) on the coupling member, for connection to a support.
Patent NL-9000662-A (NL)
IPC: H04B1/74
Filed: 1990-03-21
Abstract: The invention relates to a transmission network for transmitting signals, comprising nodes and transmission sections accommodated between them. According to the invention, provision is made that at least a number of transmission sections comprise a main connection and a backup connection, the said backup connection forms part of one or more permanent or semipermanent backup rings which comprise, in addition to said backup connection or a part thereof, also the backup connection of other transmission sections belonging to the transmission network. Preferably, the invention at the same time provides that in the event of a failure or interruption in a transmission section, both the main connection and the backup connection of said transmission section are switched off in the nodes on either side of said failed or interrupted transmission section and that the free ends of the main connection and the backup connection produced by said switching-off on the side of the particular nodes are connected together. A preferred embodiment of the invention provides that the backup connection of a transmission section forms part of two permanent or semipermanent backup rings of the said type and that the transmission capacity of said backup rings is each at least equal to half the transmission capacity of the main connection of said transmission section. <IMAGE>