baber/WOPTO huggingface dataset:
Patent NL-2027359-A (NL)
Title: Device, method and system for determining flight height of unmanned aerial vehicle
Inventor: YONG HE
IPC: G06T7/73
Filed: 2021-01-21
Abstract: The present disclosure relates to a device, a method and a system for determining the flight height of an unmanned aerial vehicle. The determining device comprises that a camera at the bottom of the unmanned aerial vehicle is carried on a 5 three-axis self-stabilizing tripod head; a carrier phase difference satellite positioning system, a graphics processing computer and a power supply system are all provided on the top of the unmanned aerial vehicle; the graphic processing computer is connected with the carrier phase 10 difference satellite positioning system, the power supply system and the camera, respectively; an attitude and heading reference system is provided at the bottom of the three-axis self-stabilizing tripod head and is connected with the graphics processing computer; the graphic processing computer 15 is configured to determine the relative height of the unmanned aerial vehicle from the canopy of farmland surface crops according to the position information acquired by the carrier phase difference satellite positioning system, the attitude information acquired by the attitude and heading reference 20 system and the ground orthographic image acquired by the camera, and determine the flight height of the unmanned aerial vehicle according to the relative height. According to the present disclosure, the accuracy of determining the flight height and the stability of data are realized.
Patent NL-6917659-A (NL)
Title: Phosphorus (iii) oxide prepn
IPC: C01B25/12
Filed: 1969-11-24
Abstract: Phosphorus (III) oxide is prepared by oxidising molten phosphorus with oxygen/nitrogen, or compounds of these two elements, in the presence of catalytically active materials. High yields of phosphorus (III) oxide are obtained, generally in the range 80-95%. The catalytically active materials pref. consist of alkali and/or alkaline earth metal compounds.
Patent NL-7005639-A (NL)
Title: Split ingot mould
IPC: B22D7/08
Filed: 1970-04-18
Abstract: Metal vertical mould open at top and bottom for casting heavy mouldings such as steel billets and ingots of several tons weight is constructed from separate walls with vertical joint surfaces, with adjacent walls. These are coupled together so as to resist the hydrostatic pressure of molten metal on the walls, generally in such a way that the coupling members can reversibly adjust to shape changes due to thermal stresses which occur in the mould walls during pouring and solidification of the ingot, without unacceptable opening up of the joint surfaces. Specif. joint strips are provided in the vertical point surfaces of the mould, to maintain the seal.
Patent NL-7205583-A (NL)
Title: Aluminium salt of orthophosphate esters - as friction-reducing gel-forming additive for organic liquids,esp fracturing liquids
IPC: C09K8/64
Filed: 1972-04-25
Abstract: Press, redn., and therefore energy required, in moving an enclosed organic fluid, caused by internal friction and friction between the fluid and the enclosing walls, are reduced by mixing with the fluid 9.07-181 kg/3.78 m3 of an Al salt of a mono-aliphatically substd. orthophosphate ester, in which the aliphatic gps. are 1-20C alkyl gps. or 2-20C alkenyl or alkynyl gps. Underground formations, esp. oil-producing formations, may be fractured by injecting an organic fracturing liquid contg. these Al salts. At the given concs., gel-formation occurs and solid particles are held in suspension. The gelled liquid has no effect on water-sensitive formations, is not dependent on dilution with fluids in the formation, does not form a ppt., and has no harmful effect on the formations. The viscosity is constant over a wide temp. range, fluid loss can be controlled, and the system has good sand-carrying capacity.
Patent NL-7205982-A (NL)
Title: Free radical initiators - contg two cyanide gps per repeating unit
IPC: C08G61/02
Filed: 1972-05-03
Abstract: Free radical initiators (I): (where R is 1-12C hydrocarbon and m is 2-100) or (II): (where R1 is 1-24C hydrocarbon; r2 is 1-9C alkyl; Y is -NH- or -O- and n is 2-250). Cpds. (I )are made e.g. by oxidative coupling of alpha, alpha1-dicarboalkoxy-p-xylylene dicyanides using Cu amine complex as catalyst; cpds. (II) are made by oxidative coupling of the condensation prod. of a p-substd. phenylcyanoacetyl chloride with the corresp. diol or diamine. Products are useful for free-radical initiated reactions such as chlorination of side chains of toluene, addn. and substn. reactions such as addn. of cyclohexane and formaldehyde; polymsn. of monomers such as styrene and methyl methacrylate and curing of unsatd. polyester resins. (I) and (II) are more specific and less prone to undesired side reactions and gas formation than known initiators.
Patent NL-7213321-A (NL)
Title: Catamenial tampon - with rayon fibres projection through crepe paper layer
IPC: D04H1/4258
Filed: 1972-10-02
Abstract: The absorbency of a tampon made from a combination of crepe paper and rayon layers in the ratio 1-1 is made comparable to that of the more expensive all rayon tampon by tufting the rayon layer through the crepe paper layer so that when in posn the rayon tufts project transversely outwards. Typically there are 800 tufts per sq. in which are produced by forcing barbed needles through the rayon and crepe layers.
Patent NL-7408818-A (NL)
Title: Push in top for cans under pressure - has button formed by circular groove with metal wall part sheared through to give zone of weakness
IPC: B21D51/38
Filed: 1974-07-01
Abstract: A push in top is for a metal can containing liquid under pressure. The top (14) of the can (10) is formed to give a localised circular groove (24) having sloping sides (20, 22) and with the top (16) of the button so formed below that of the can top. The metal wall thickness at the base (44, 46) of the groove is part sheared through to give a zone of weakness (38) and is progressively reduced in depth around the circumference to zero. At this point, the metal acts as a hinge (H).
Patent NL-7412583-A (NL)
IPC: F24H1/10
Filed: 1974-09-24
Abstract: A heat generator of the type condensing the combustion products of a liquid or gaseous hydrogen fuel suitable for the heating of a heat-bearing fluid, including a tank containing at the top a zone of direct contact between the heat-bearing fluid and the combustion products, a collector for the heat-bearing fluid coming from the zone of direct contact, a convection heat exchanger arranged in the path of the combustion products, a combustion zone at a pressure close to atmospheric pressure, and a conduit which connects the collector of the heat-bearing fluid to the convection heat exchanger and is provided with a pump for replacing under pressure the portion of the heat-bearing fluid coming from the collector and intended to pass through the convection heat exchanger.
Patent NL-7510420-A (NL)
Title: Clamping unit for plastic pipe treating machine e.g. a die - has a central and two lateral clamping parts operated by a hydraulic actuator
IPC: B29C53/30
Filed: 1975-09-03
Abstract: A pipe clamping unit has a central clamping part with a lateral clamping part on each side of it. At least one clamping part can co-operate with an operating element to bring about motion of the part. The lateral clamping parts are coupled to the central clamping part in such a way that, on movement of this part, the lateral clamping parts also move, until the central part in its extreme position forms, together with the lateral clamping parts, a closed clamping unit. The clamping unit is very stable, of compact design and is simple to use and maintain.
Patent NL-7514491-A (NL)
Title: Flow rate regulator in liquid conveying pipe - has shaped plug and spring loaded cylinder valve preventing turbulence
IPC: G05D7/01
Filed: 1975-12-11
Abstract: A capacity limiter used to regulate the flow of liquid in pipes so that no more than a predetermined quantity can flow. Control is achieved by means of a plug head, tension rod, cylinder valve, spring and a transmission element (5). The head of the plug (1) is flat on one side and the pressure can be calculated from the hydraulic equation. The other side of the plug is cone shaped in order to prevent turbulent flow. The forces are transmitted to the cylinder valve (3) via the tension rod (2). The bored cylindrical valve fits into the flow-through element. The closure of the flow-through opening starts when the force on the valve exceeds the tension in the spring. This will occur when a given rate of flow Q produces a force K on the plug-head via the tension rod.
Patent NL-7806080-A (NL)
Title: Coherent solid meat prods. - made by coating pieces of meat with an emulsifier, compressing together and heating
IPC: A23L13/50
Filed: 1978-06-05
Abstract: Coherent meat products are made by bonding smaller pieces of meat together. Pieces of raw meat are worked mechanically until an adherent deposit has formed on the meat. An effective amt. of an emulsifier (I) is then added and the mixt. is worked again until the (I) is distributed uniformly over the surface of the meat. The coated metal is then loaded into a container, compressed, and heated to a core temp. of >=60 degrees C. The process gives large coherent pieces of meat made up from smaller pieces. The meat does not fall apart when heated, as is the case e.g. with pieces of meat bound together with a gelatin binder.
Patent NL-7900271-A (NL)
Title: Diffuse illumination electronic flash - has combination of direct and variable flashes simultaneously fired and mutually compensated
IPC: G03B15/05
Filed: 1979-01-12
Abstract: The electronic flash gun attachment is for a camera in which two discharge tubes are used; one (17) on the main gun housing and one (19) on a variable geometry head (12). The variable flash is used for a bounce effect, with any loss in illumination compensated for by the direct view flash. The gun is used for indoor exposures and the combination of the two flashes provides a more diffuse and shadowless illumination. The two discharge tubes are fired using a capacitative discharge with a quench signal when the integral photocell (15) has monitored sufficient subject illumination. The electronic circuit includes a quench control stage with a capacitor in parallel with a resistor to cut off the illumination power after a specified interval.
Patent NL-7907332-A (NL)
Title: Phenoxy:benzyl di:methyl chloro:propenyl cyclopropane carboxylate cpd. - useful as an insecticide, prepd. from methyl 2,2-di:methyl oxo:propyl cyclopropane carboxylate deriv.
IPC: A01N53/00
Filed: 1979-10-02
Abstract: 3-Phenyoxybenzyl-1R, cis-2,2-dimethyl-3-(2-chloropropenyl)cyclopropane carboxylate (I) and its C=C geometrical isomers are new. (I) is an insecticide and is closely related structurally to PErmethrin. (I) is effective against e.. flies, mosquitoes, cockroaches. The LD50 (topical applicn.) against flies is 0.005-0.01 mu g/fly. For mosquitoes and cockroaches the LD50 is similar to that of the fly and falling to 0.1 mg/kg.
Patent NL-7907524-A (NL)
Title: Composite electrode assembly for electrochemical cell - for electrolytic oxidation to produce e.g. acetonitrile, benzoic acid and diacetone-L-ketogulonic acid
IPC: C25B9/17
Filed: 1979-10-10
Abstract: Composite assembly of electrodes for electrochemical cell comprises superimposed sheet electrodes with a sandwiched insulating sheet to prevent electrical contact between the electrodes and an outer insulating sheet to prevent electrical contact with other electrode assemblies or conductive parts of the cell. The electrodes and insulating sheets are deformable and the electrodes and/or the insulating material are porous, corrugated, channeled or otherwise formed to allow electroylte to flow freely through the assembly. Pref. the four, superimposed sheets are wound spirally about a central axis. The assembly is useful for high capacity, industrial, electrochemical cell, partic. for electrolytic oxidn. of e.g. ethylamine to acetonitrile; benzyl alcohol to benzoic acid; and diacetone-L-sorbose to diacetone-L-ketoglonic acid. The construction of the electrodes assembly favours(a) high ratio of electrode area to cell vol; (b) high permissible voltage and current values; (c) efficient distribution of electrolyte through the electrodes assembly (d) electrodes assemblies may be used in multiples for extra high capacity cells.
Patent NL-8002575-A (NL)
Title: Trailing or self-propelled beet lifter - has pair of vibratory coulters before vibratory shares
IPC: A01D25/04
Filed: 1980-05-02
Abstract: The beet-lifter has a frame supporting one or more pairs of driven self-aligning vibratory shares, a number of sieve wheels, and guide gratings with which the latter work, directing the lifted beet to a storage position. Seen in the travel direction there is a pair of driven self-aligning vibratory coulters (1) in front of each pair of shares (2). The distance between the coulters is roughly equal to that between the shares, and a coulter drive is provided. The drives to the shares and to coulters, together with the shares and coulters, can form a single assembly.
Patent NL-8201590-A (NL)
Title: Size grading unit for fruit - has rollers between two parallel endless chains with links height-adjustable to vary roller pitch
IPC: B07B1/10
Filed: 1982-04-16
Abstract: The mechanism is intended for sorting objects, e.g. fruit, into different sizes. It comprises rollers (8) with stub shafts (9) at both ends which are carried between links (2) of two parallel endless chains and roll on a straight track (10). Each chain link (2) has a disc-shaped portion (3) with cut-off segment (5) and a longitudinally forked portion (4) receiving the portion (3) of the preceding link. Each forked portion has a curved slot (7) concentric with the disc and the portion (3) has a bore (6) near one corner. Each stub shaft (9) extends through a slot (7) of one and a bore (6) of the adjoining link. The links are guided at top (12,14 etc.) and bottom (11,13 etc.) to vary the relative level between the links to cause their relative rotation and thus successively alter the distance between adjacent rollers.
Patent NL-8300741-A (NL)
Title: Spectrally selective layers - of transition metal nitride cpd. on roughened surface
IPC: G02B1/10
Filed: 1983-02-28
Abstract: A support bearing a spectrally selective layer pref. made of Cr- and/or Ti nitride is claimed. The carrier may also have a content of inert particles, esp. C particles with an ave. dia. of 0.01-0.1 micrometres. Pref. base material is of Ni or Cu electrolytically deposited from a bath contg. C particles which co-deposit with the metal to give the desired rough surface. A Cr and/or Ti layer is then applied from a bath which opt. also contains inert particles, to give a layer 0.05-0.5 micrometres thick. The transition metal layer can be nitrided by (a) electroless treatment in a bath contg. 0.5-1.5 M Na nitrite and 0.25-0.75 M ammonium sulphate soln.; (b) treatment in a salt melt of 25-75 wt.% NaCN and 25-75 wt.% NaCNO at 500-600 (pref. 550) deg.C; (c) by anodic treatment in a bath contg. 10-100 ml hydrazine/l at a pH of 1-11 (esp. 9-11) and a current density of 0.2-2 A/dm2 for 10-60 mins.; or (d) by cathodic treatment in a bath contg. 50-100, esp. 65-75 g/l Na nitrite at a temp. of 40-100 deg.C, a pH of 3-9 and a current density of 1-2 A/dm2 for 10-60 mins.
Patent NL-8301854-A (NL)
Title: Sound attenuating vertical panel suspension - has rectangular panel connector with claw at one end and reinforcing edge at other end
IPC: E04B9/04
Filed: 1983-05-25
Abstract: The tungsten steel connector is a rectangular plate (1) of which one edge is folded back to form a claw (3). The opposite edge (4) is bent at an angle of 90 degrees and has a reinforcing edge. Two adjacent vertical suspended sound attenuating panels (7,8) have a U-shaped frame (9,10). The edge strip (6) forming claw (3) is inserted behind the flange of a panel U profile (9). The opposite edge strip withthe reinforcing edge fits behind the flange of the U-profile of panel (8) and is pushed into the panel surface.
Patent NL-8401469-A (NL)
IPC: B65G47/91
Filed: 1984-05-08
Abstract: A method and apparatus for laying bricks in a herringbone pattern, in the preferred embodiment by a tongs motion, and for packeting bricks in a herringbone pattern.
Patent NL-8702835-A (NL)
Title: Power pack for hydropneumatic vehicle suspension system - has metering and display system to monitor gas pressure
IPC: B60G17/04
Filed: 1987-11-26
Abstract: The system is designed for use with road vehicles, typically Citroen cars, in which the suspension system between the body of the vehicle and the road wheels relies on hydropneumatic damping rather than mechanical springs. A pressurised reservoir (2) containing the fluid is linked by pipes (4) to the pump and suspension system. Set into the top of the reservoir is a plug (6) which carries a vertical immersion electrode tube (14). Power (18) from the vehicle battery is applied to an electronic circuit (12) on top of the plug. The level of fluid in the reservoir is proportional to the pressure of nitrogen in the suspension system. The electronic circuit produces a pulsed signal which is fed via a cable to a read-out unit (22). The unit has a numerical display (24) and a reset knob (26).
Patent NL-9000116-A (NL)
Title: Projector lens support system - incorporates enveloping resilient frame with equispaced internal CAMs
IPC: G02B7/02
Filed: 1990-01-18
Abstract: The lens support has a square frame. It has an internal ring with cams is support the lens and is pliable in a direction vertical to the centre line of the lens. The support frame (1) is constructed with a support ring (2) and four legs (3,4) at right angles to each other, and includes L-shaped corner pieces. The support ring (2) encompasses annular ring (5) with equispaced internal cams (6).
Patent NL-9000993-A (NL)
Title: High power UV lamp for hardening layers of paint etc. - has ventilated IR filter preventing heat damage
IPC: B05D3/06
Filed: 1990-04-25
Abstract: The U.V. source (1), e.g. a 4 to 5 kW tubular lamp, is mounted at the focus of a reflective cap (2), inside a casing (4). Below the reflector aperture (3) an i.r. filter assembly (9) is installed. Hot air and other gases are drawn through the filter and apertures (16) at the top of the reflector by a fan (6) mounted in an outlet (5) on the casing (4). The substrate (7) being treated move along under the lamp on a transporter belt (8). The filter (9) consists of groups of rectangular absorption elements (12, 13) at right angles to each other. The ower group (12) consists of parallel strips of transparent material (14), e.g. quartz glass, with narrow gaps between them. The upper group (13) of transparent laminations (15) overlap but have gaps between them because of their angle to the horizontal. @(13pp Dwg.No.2/3)@.
Patent NL-9100614-A (NL)
Title: Locking system with tumbler and key - has magnets in key and tumbler placed to provide fluxes at right angles in key and tumbler when operated
IPC: E05B47/00
Filed: 1991-04-08
Abstract: Locking system for sue with individual keys on a group or centrallised basis is based on a spring loaded tumbler (4) and magnet (5, 6) rotating in an encased (1) cylinder barrel (2) so as to drop into slots (3) in response to key action (7) when its magnets (8, 9) cooperate with those in the tumbler. The magnet flux of the magnet(s) in the key flows at right angles to that between the magnets in the tumbler. When the tumbler is in the down or locked condition, with the key inserted, the centre line between the magnet fluxes in the tumbler lies between the outer ends of the magnets incorporated in the key. If the tumbler has two or magnets viewed in the movement direction of the tumbler the magnets placed in a nonmagnetic part of the tumbler, the key should also have magnets to cooperate with these.
Patent NL-9201976-A (NL)
Title: Method and device for removing foliage from bulbous and tuberous plants
IPC: A01B39/19
Filed: 1992-11-12
Abstract: In a method for removing foliage from bulbous or tuberous plants, a local clamping force is exerted on the underground unit comprising the foliage and the surrounding earth, while it is being moved away from the bulb or tuber in question. The device for carrying out the method comprises a first overground, rotatable roller and a second roller which is positioned at a distance behind and below the first roller and rotates partially underground but above the bulbs, the two rollers, at least during forwards movement of the device, rotating in an opposite direction in such a manner that the foliage and the earth surrounding the underground foliage is moved upwards. Preferably, the smaller, second roller is of polygonal shape.
Patent NL-9202150-A (NL)
Title: Cover for a waste container
IPC: A61B19/02
Filed: 1992-12-11
Abstract: Cover for a waste container, comprising a cover plate with peripheral wall, which fits onto the upright top edge of the container, in which cover plate a circular opening is formed, which opening can be closed off by means of a circular cap, an outer peripheral wall of the cap and the inner circumference of the recess have interacting projections for locking the cap in the recess, the projections being elongate and being disposed at an angle with respect to the line of symmetry of the cap, in such a manner that an opening is formed between one end of a projection and the other end of the adjoining projection, which opening serves to allow the passage of the interacting projection, the axially oriented bottom surface of one projection and the opposite axial surface of the other interacting projection having recessed sections for defining various closure positions of the cap in the cover plate, by means of which one or more intermediate positions of the cap, in which the cap can be removed, and the limit position, in which the cap is permanently locked, are achieved.
Patent NL-9401688-A (NL)
Inventor: STOLK ROBERT
IPC: A47G25/90
Filed: 1994-10-13
Abstract: PCT No. PCT/NL95/00276 Sec. 371 Date Jun. 11, 1996 Sec. 102(e) Date Jun. 11, 1996 PCT Filed Aug. 18, 1995 PCT Pub. No. WO96/11618 PCT Pub. Date Apr. 25, 1996A method of taking off an elastic cover (3) for limbs is characterized by applying a wrapping (1) of smooth material around the elastic cover (3) and then stripping the cover (3) from above with interposition of the smooth wrapping (1) between the stripped away portion (3') and the portion (3'') still in position on the limb. A take off means for use in this method is characterized by a wrapping (1) of smooth material fitting around the cover (3) on the leg or arm.
Patent NL-9402087-A (NL)
Title: Metal car jack
Inventor: RIECK FRANK GERARD
IPC: B66F3/12
Filed: 1994-12-09
Abstract: Metal car jack comprising a bearing member which is substantially vertical during use, a lever and a threaded spindle, which lever, on one side, is rotatably connected to the vertical bearing member, and which lever, during use, on the other side from the one side mentioned above, is in contact with a car which is to be jacked up, and which vertical bearing member and lever are also coupled to one another by means of the threaded spindle, which is suitable for changing the position of the upright bearing member and the lever by rotating, the upright bearing member being designed as a hollow, extruded aluminium section.