baber/WOPTO huggingface dataset:
Patent NL-2031748-A (NL)
Title: Vibration abnormality detection and alarm device of gear pump
Inventor: CHUNYAN CHI
IPC: G08B21/18
Filed: 2022-04-30
Abstract: The present invention relates to the technical field of gear pumps, and discloses a vibration 5 abnormality detection and alarm device of a gear pump. The device comprises a mounting base; the mounting base is provided with a fixing mechanism; gear pump equipment is fixedly installed on the fixing mechanism; vibration collecting mechanisms are symmetrically installed on both sides of the bottom end of the fixing mechanism; the vibration collecting mechanisms are connected with a vibration amplifying mechanism; the vibration amplifying mechanism comprises 10 a first bracket; the first bracket is fixedly installed at the vibration collecting mechanisms; a connecting rod is installed on the first bracket through a rotating shaft; a roller is installed on the top end of the connecting rod; a first spring is connected at both sides above the connecting rod; the other end of the first spring is connected with the first bracket; a switch mechanism is installed on the bottom end of the connecting rod; and a reinforcing mechanism is further installed on the 15 fixing mechanism. The present invention can collect vibration of the gear pump equipment through the disposed vibration collecting mechanisms, and can amplify a vibration effect through the vibration amplifying mechanism, so as to detect and alarm the vibration of the gear pump equipment.
Patent NL-6604118-A (NL)
IPC: C07C241/00
Filed: 1966-03-29
Abstract: A hydrazo-aromatic compound is obtained by reducing an aromatic nitro-compound in the presence of strong alkali (optionally in the presence of quinones) and an aliphatic and/or cycloaliphatic glycol or polyol having from 2 to 12 carbon atoms.  A carboxylic acid is obtained as a by-product.  Specified glycols which may be used are ethylene glycol, 1,2-propylene glycol, di- and tri-ethylene glycols, butane-1,2-diol, butane-2,3-diol, pentane-1,2,-diol, hexane-2,3-diol, cyclohexane-1,2-diol and mixtures of various polyethylene glycols obtained as by-products in the preparation of ethylene glycol. Specified polyols are glycerol and hexane-1,2,4-triol.  Specified quinones are 2-hydroxy-1,4-naphthoquinone, 1,4-naphthoquinone and derivatives of 1,2- and 1,4-naphthoquinone. Specified organic solvents which may be used as diluents are dioxan, tetrahydrofuran and methanol. Examples are given for the production of hydrazobenzene and hydrazotoluene together with sodium oxalate and/or glycollate as by-product.
Patent NL-6814882-A (NL)
IPC: G03F1/48
Filed: 1968-10-17
Abstract: 1,210,140. Photo-masks. SIEMENS A.G. Dec. 11, 1968 [Dec. 12, 1967], No. 58793/68. Heading G2M. Photo-masks for the contact exposure of photoresists in the manufacture of semi-conductors comprise, in order, (i) a hard transparent substrate, optionally (ii) a harder layer, (iii) a metal image, and (iv) a hard transparent overcoating not more than 3 Á thick. The hard transparent materials may be quartz, SiO 2 , Al 2 O 3 , Si C, Be O or hardened glass, and layer (ii) may consist of quartz. The metal image may be Cr, Mo or Al and formed by a photo-resist technique.
Patent NL-6907622-A (NL)
Title: Teflon pipeline valve
IPC: F16K27/06
Filed: 1969-05-19
Abstract: Plug valve system consists of: an elongated portion of a cylindrical tube with a standard inner diameter; a housing formed of an elongated cylinder of resilient plastic material, this cylindrical housing being so dimensional that it can be endwise inserted into the tube section, the housing and having an axial boring for providing oppositely placed inlet and outlet ports, and also a boring between the parts for providing a valve plug chamber with open ends diametrically relative to the housing. A pair of oppositely placed openings in the tube wall, each of which are in line with an open end of the plug chamber. An elongated valve plug is axially rotatable in the housing and has a plug part in line with the parts of the valve housing so that the opposite ends of the plug project through the openings in the tube wall. The plug may be rotated from one end of it, the other end having a reduced diameter to provide an annular shoulder. The cylindrical plastic housing has an annular seating on the bottom side of the plug chamber for receiving the shoulder, and the reduced end which forms a screw threaded bolt-shaped part and is intended to restrict a clamping nut for restricting the axial movement of the plug in one direction. Used in systems for transporting fluids by means of thin walled pipes formed of Cu, stainless steel, etc. The plug valve can be placed in a pipe system with a minimum of time and work. It is very resistant to corrosion. The valve housing is made entirely from Teflon (RTM). The material of the tube is pressed in an annular manner into the resilient material of the valve housing at a place near the plug chamber.
Patent NL-7109946-A (NL)
IPC: C07D211/38
Filed: 1971-07-19
Abstract: 1353519 Fluorination of organic compounds MERCK & CO Inc 26 July 1971 [3 Aug 1970 18 June 1971] 34887/71 Heading C2C [Also in Division C3] Substitutive fluorination of an organic compound containing at least one replaceable hydrogen atom attached to a carbon atom is effected by contacting the organic compound in the liquid or solid state with a C 1-5  fluoroxyperfluoroalkane or fluoroxypentafluorosulphur in the presence of a free-radical initiator, e.g. light, ionizing radiation or a chemical chain initiator, such as an azo compound, e.g. azo-bis-isobutyronitrile. The substrate is preferably dissolved in a solvent inert to the fluorination reaction, e.g. fluorotrichloromethane or similar halogenated alkane or a strong acid such as liquid HF, fluorosulphonic acid, trifluoroacetic acid or sulphuric acid. Substrates include mono- or polynuclear aromatic or alicyclic compounds, alkanes, alkenes, amino acids, fatty acids or their amides and heterocyclic compounds. Many specific examples are given including the preparation of 3-fluoro-D-alanine, 3-fluoro-L-azetidine-2-carboxylic acid, 3- and 4-fluoro-1-aminoadamantane, difluoro-#-caprolactam acid trifluoro-#- caprolactam. Preparation of intermediates is described as follows: 2-Methylindanone is reacted with cyanacetic acid to form 2-methylinden-3-acetic acid which is reacted with p-methylthiobenzaldehyde to yield 2-methyl-1-(p-methylthiobenzylidene)-inden-3-acetic acid; oxidation with sodium periodate gives 2-methyl-1-(p-methyl sulphinylbenzylidene)inden-3-acetic acid; a Grignard reagent formed from 4-bromobibenzyl was reacted with acetone to form 4-(2-phenethyl)-phenylpropanol-2 which was reacted with NaCN in glacial acetic acid to form α,α-dimethyl-N- formyl-4-phenethylbenzylamine; the latter was treated with HCl to form 4-(2-phenethyl)-α,α- dimethylbenzylamine. HCl. 5 - Fluoro - 2 - methyl - 1 - (p - methylsulphinylbenzylidene)-inden-3-acetic acid has utility as an anti-inflammatory, analgesic and antipyretic agent and can be administered orally, rectally, parenterally or topically. 4-(2-Phenyl- 1,1,2,2 - tetrafluoroethyl) - α,α - dimethylbenzylamine is useful as an antiarrythmic agent for administration orally or parenterally in compositions containing conventional pharmaceutical carriers or excipients.
Patent NL-7203098-A (NL)
Title: Blast furnace gas scrubbing - with washing unit serving also as pressure regulator
IPC: C21B7/00
Filed: 1972-03-08
Abstract: A gas purification plant for pressurised blast furnaces, consisting of dust-catcher, washing tower with annular washing unit and discharge, in association with pressure reducers, is arranged so that the annular washing unit also serves as a pressure reducer. Specif. three annular washers, connected in parallel and separately regulated, constitute the washing unit, which is used as a pressure regulator,.
Patent NL-7306937-A (NL)
Title: Separating and isomerising cis and trans substituted - cyclohexenes (analgesics)
Inventor: NOVACK R M
Filed: 1973-05-17
Abstract: Specifically the separation of 3-trans-dimethylamino-4-phenyl-4-trans-carbethoxy-DELTA 11-cyclohexene from a mixture of the 3-trans-4-trans and the 3-cis-4-cis isomers by treating the mixture with oxalic (pref.) or fumaric acid in an inert solvent at up to reflux temp. until dissolved (1-1.2 moles acid/mole 3-trans-4-trans isomer) then collecting the salt of the required isomers. Advantage is that the oxalate and fumarate of the required trans-isomer are selectively precipitated whereas in the earlier separation of FR.83932 using the hydrochlorides, the cis isomer is less soluble in the reaction medium and the trans isomer is isolated by evaporation of the solvent from the filtrate. The trans isomer is more analgetically active than the cis-isomer. The residual cis-isomer is partially isomerised by heating it with an organic acid or its anhydride at 60-130 degrees C optionally in presence of a solvent. Preferred to use 2-4 moles of acid or anhydride per mole of cis-isomer.
Patent NL-7309942-A (NL)
Title: Polyarylene polyether siloxane copolymer mixtures
IPC: C07F7/02
Filed: 1973-07-17
Abstract: Polymer mixt. comprising (a) a linear polyacrylene polyether thermoplast -(O-E-O-E)- where E is diphenyl residu and E' is residue of a benzenoid compd. contg. an inert grp. which increases electron density on ortho- and para- posns. and (b) 0.1 to 99.9% wt. of a siloxane/polyarylene-polyether comprising (1) a siloxane chain having 2 units RbSi RbSiO (4-b)/2 where R is monovalent hydrocarbon, -O- etc. and b is 1 to 3; R can also be org. divalent hydrocarbon or ehter oxygen linking siloxane to polyarylene- polyether and (ii) a linear polyarylene-polyether as defined for (a). These polymer mixts. gave materials with better shock resistance and increased resistance to cracking in pres. of certain fluids.
Patent NL-7404037-A (NL)
IPC: G01S17/06
Filed: 1974-03-26
Abstract: A device for measuring an angular deviation by a space-time modulated heterodyne detection comprising a coherent optical radiation transmitter pointed at a target, a local transmitter of a coherent optical radiation having the same wavelength as the preceding radiation, a photovoltaic detector, means for focussing at a point on said detector the radiation reflected by the target, and means for converting the radiation of the local transmitter into a parallel beam and causing said parallel beam to impinge perpendicularly on the surface of said detector, wherein the means for space-time modulating the heterodyne detection are interposed in the path of the radiation from the local transmitter.
Patent NL-7412333-A (NL)
Title: Tractor has driven rear wheel(s) on one side only - and double-hinged horizontally pivoted extension with rear running wheel on other side
IPC: B62D49/08
Filed: 1974-09-18
Abstract: The tractor is of the type having steerable front wheels (6) and driven rear wheels(s) (3). The driven rear wheels(s) (3) are arranged at one side of the chassis only. On the other side is a first extension arm (8) pivotable about a horizontal axis (9). At the other end of this arm, a further horizontal pivot (10) carries a second extension arm (11), both arms being adjustable about their pivots. At the free end of the second arm a rod wheel (14) is carried which is pivotable about a horizontal axis (12). The axis of rotation of the wheel (14) is preferably in line with that of the driven wheel (3).
Patent NL-7501442-A (NL)
Title: Automatic drink disepensing apparatus - has three pipe connection system for beer or similar and water pipe for cleansing
IPC: B08B9/04
Filed: 1975-02-06
Abstract: The installation for the automatic dispersing of drinks, typically beearm comprises a tap at table leve fed through a cooler connected in turn to twin ducts from the barrels. The feed connection includes a coupling to a water tap which may be switched on during the cleaning of the equipment, so that altogether three inlet ducts are required. The cooler includes a spiral tube and a thermostatic temperature control device. The supply device is actuated by a servo-motor. The water supply is pressurised and supplied to the drink lines through a reducing valve.
Patent NL-7502098-A (NL)
Title: Removal of roots from flower bulbs - by pairs of rotating rollers moted in a cylinder and partly screened by flexible strips
IPC: A23N15/08
Filed: 1975-02-21
Abstract: A machine for removing the roots from flower bulbs has pairs of parallel rollers which are made to rotate in opposite directions. They are set with the longitudinal axes sloping and are covered with flexible material. They are supported in a cylindrical drum and on the inside of the drum protective strips cover part of the area leaving narrow slits corresponding to the lines where the rollers touch each other. The protective strips hold the rest of the bulb clear of the rollers while the roots are torn off and minimise damage. The cylindrical form allows the direction of rotation of the rollers to be reversed during each cycle, releasing any bulbs which are trapped. On a conventional sloping flat run trapped bulbs cause stoppages.
Patent NL-7505256-A (NL)
Title: Artificial off shore island - with ballast fitted open top vessel as foundation for e.g. oil drilling structure
IPC: E02B17/02
Filed: 1975-05-02
Abstract: Artificial coland comprising a structure, particularly a borehole drill rig, supported on a foundation consisting of >=1 open top vessel filled with ballast, and pref. fabricated from reinforced concrete. Provides a relatively cheap construction for an off-shore drilling tower in locations where rough water may be expected, not needing costly piling or equally costly caissons.
Patent NL-7614158-A (NL)
Title: Thin film evaporator with rotor-mounted wiper blades - esp. of PTFE has all other internal surfaces enamelled
IPC: B01D1/22
Filed: 1976-12-20
Abstract: A thin film evaporator consists of a (vertical) cylindrical vessel, the inner face of which acts as the heating surface and is swept by PTFE or similar wiper elements mounted on radial arms of a coaxially mounted rotor shaft. The inner wall face of the vessel and the rotor unit, except for the PTFE wiper elements are all enamelled in corrosion-resistant enamel. Pref. the rotor shaft if top-mounted only outside the vessel, in a hearing, while the lower end of the shaft is freely suspended. All parts with the exception of the wiper blades themselves are of corrosion-resistant material and there are no bearings inside the vessel itself to be subject to corrosion.
Patent NL-7703163-A (NL)
Title: Winding station drive varying the traverse pattern - having driving shaft with conical pulley altering speed of belt
IPC: B65H54/38
Filed: 1977-03-23
Abstract: A yarn winding station comprises a frame with a spindle for the yarn tube, a garn guide and a traversing roller. The spindle and traversing roller are driven in common by a transmission from a motor shaft, and that for the traversing roller includes on the driving shaft, a first detail turning with it and a second detail which is free to rotate. There is a transmission from the solid shaft and the first detail on the one hand, and from the second detail on the other, arranged so that the angular speeds of the two details vary slightly. A conical assembly on the driving shaft is linked by a second transmission belt to the traversing roller. At least one of the details has a section which can be displaced axially on the driving shaft, whilst the other detail has a section which holds up against the displaceable detail. One of these sections has on its face towards the opposing section, a surface inclined obliquely to the axis of the driving shaft. The other has a peg which works with the inclined surface so that a difference in the anular speed of the details sets up a reciprocating motion in the displaceable detail. This displaceable section is coupled to one of the details of the conical assembly on the driving shaft, so that the belt is displaced axially across the conical surface. This replaces the complicated and/or expensive methods of varying the traverse pattern during winding, by a very simple layout.
Patent NL-7810581-A (NL)
Title: Vacuum-tight tube connection flange - has sharp edge shrunk into bore and flange collar deformed together with tube end
IPC: F16B4/00
Filed: 1978-10-24
Abstract: The vacuum-tight shrunk pipe connection comprises a part (12) with cylindrical bore(11) into which a second part(10) with slightly larger dia. is fitted. At least one part (10) has a sharp edge (17) subject to, or causing, plastic deformation on fitting together, and one part(10) is an initially flat flange which takes on a dished shape on first fitting. The flange is joined to a thin cylindrical tube(13) by a thin-walled collar(14) on the flange which surrounds the tube and is plastically deformed together with it.
Patent NL-7904619-A (NL)
Title: Disc for rotary filter draining through hollow shaft - has gauze covered zone compartmented with separate draining pipes
IPC: B01D33/23
Filed: 1979-06-13
Abstract: The zone enclosed by gauzes between the hub and the outer rim of a filter element having the form of a disk mounted on a rotary shaft through the bore of which the filtrate is drained, is divided into a least three sectors by spoke-like partitions. Each sector is connected to the inside of the hub by two drain pipes which extend close to the axis of the hollow shaft, and the redn. in the wt. of the filtrate beneath the surface of the bath being filtered prevents the breaking off of the filter cake by reversed flow, and the efficiency of the machine is improved generally.
Patent NL-7906043-A (NL)
IPC: B60K5/02
Filed: 1979-08-07
Abstract: An engine-transmission assembly wherein the engine in it is connected to a rear transmission unit by a supporting pipe which serves to reduce vibration and noise. According to preferred embodiments of the invention, the supporting pipe includes at least one outer pipe and an inner pipe fitted therein which are interconnected at only ends and are held in position via a friction seat. The pipes forming the supporting pipe can be of equal length and thickness or can be of varying length and/or thicknesses according to other embodiments.
Patent NL-8005190-A (NL)
Title: Evaporative cooler - movable louvres control capacity
IPC: F28C1/12
Filed: 1980-09-17
Abstract: The cooler consists of a horizontal Venturi with its spray jet device, a downstream, mixing chamber an air outlet arrangement and a sump for the recovery of water. The spray device covers the throat area of the Venturi tube by a multitude of elliptical diverging jets ensuring the efficient pumping of air without blow-back. For capacity regulating purposes, movable outlet louvres, air recirculation, and a controlled water supply to the jets are provided, initiated by a sensor in the water return line. The controlled water supply may take the form of a valved bypass, or two pump of differing capacity connected in series or parallel. Damper on the jets may also be employed to reduce capacity.
Patent NL-8401662-A (NL)
Title: Commercial green-house sun blind - has flexible cloth roller which is fixed at one end and unrolled along sloping surfaces
IPC: A01G9/22
Filed: 1984-05-24
Abstract: A rotary, driven tube carrying a rolled cloth blind is supported at either end, and motor driven at one end. Guide blocks with a flexible coupling enable movement of the roll along sloping surfaces. The sunblind (1), forming part of a group of similar blinds, consists of flexible cloth material (2). One end (3) of the cloth is connected to a fixed support (4). The opposite free end may roll on and off along a sloping surface, and is driven by a motor (6). This enables each blind to be connected between supports (4,14) which are fitted at a similar height to the greenhouse.
Patent NL-8503130-A (NL)
Title: Counting and measuring system for horticultural products - uses infrared or ultrasound beams to detect falling bulbs and tubers
IPC: B07C5/10
Filed: 1985-11-14
Abstract: The bulbs or tubers (2) are carried along a conveyor belt (1) until, as the belt passes over an end roller, they fall between an array (4) of transmitters and an array (5) of receivers. The beams (3) of infra red radiation or ultra sound are parallel with each other and form a grid through which the falling bulbs must pass. The time for which the beams are interrupted and number of adjacent beams interrupted can be analysed by an electronic processor to count and measure the bulbs. The processor may also be programmed to ignore short interruptions due to small fragments of earth, detached roots, etc.
Patent NL-8603032-A (NL)
IPC: C21C7/00
Filed: 1986-11-28
Abstract: A powder-filled welded steel tube has a tube wall (1) with a welded longitudinal seam (6) and is wound into a coil for despatch. To reduce the risk that the seam opens when the tube is twisted, e.g. on uncoiling, the tube wall is provided with a continuous longitudinal groove (5). Preferably the groove (5) is symmetrical and directed radially inwards. In the continuous manufacture of such tube, a metal strip is formed into an open channel, powder is introduced into the channel, the channel is closed and the edges welded to form a closed tube. The diameter is then reduced and the finished product is coiled. The longitudinal groove (5) is rolled in continuously during the diameter reduction of the powder-filled welded tube.
Patent NL-9001220-A (NL)
Title: Blade for slitting adhesive coated fibre reinforced plastic tape - has obtuse top angle and smooth cutting edges on both sides of top angle
IPC: B65H35/00
Filed: 1990-05-29
Abstract: Appts. for slitting a tape into at least two parts,esp. a fibre reinforced plastic tape carrying a layer of adhesive, comprising a blade with a division-promoting element and a division-initiating element, whereby the blade has a single obtuse top angle and is provided with a smoothly finished (non-toothed) cutting edge on both sides of the top angle.
Patent NL-9101530-A (NL)
Title: Fuse cap with current-measuring terminal
IPC: H01H85/30
Filed: 1991-09-10
Abstract: The invention relates to a device for measuring current flowing in an electrical installation and is suitable for a fuse (fusable cut-out, blow-fuse) pertaining to the fuse box and formed in such a way that the current flowing through the fuse will flow through a wire loop situated outside the fuse carrier. The device is preferably formed by a fuse carrier for a fuse which pertains to the fuse box and is formed in such a way that the current flowing through the fuse will flow through a wire loop situated outside the fuse carrier. Thus the invention makes it possible to measure the current flowing through a single set of an installation.
Patent NL-9101915-A (NL)
Title: Improvement to a thatched roof
IPC: E04G23/02
Filed: 1991-11-18
Abstract: A layer which hardens is applied to a thatched roof, which layer counteracts the entry of air and prolongs the service life. Moreover, the resistance to discoloration is improved, the flammability is reduced and damage caused by plant growth and the damage caused by the birds attracted to this growth are counteracted. The layer is preferably a paint, which may be flame retardant and is also preferably a water-based paint. <IMAGE>
Patent NL-9201845-A (NL)
IPC: G01N27/16
Filed: 1992-10-23
Abstract: The invention relates to a method for determining the calorific value of a combustible gas, which is characterized in that an accurately determined amount of gas is passed through a hydrocarbon detection device, the signal obtained is integrated, the value thus obtained is compared with calibration values and the calorific value is calculated therefrom, to a method for the determination of the Wobbe index of natural gas, the Wobbe index being calculated from the calorific value and the density of natural gas, as well as to apparatus for carrying out these methods.