baber/WOPTO huggingface dataset:
Patent NL-247957-A (NL)
IPC: C03B5/16
Abstract: A polymeric material, particularly an ion-exchange material is made by contacting a fluoropolymer containing units of the general formula: <FORM:0947578/C3/1> in which Z represents a halogen or hydrogen atom with ethylenically unsaturated monomeric material in liquid phase which is polymerized by means of a free-radical catalyst, whereby the polymerized monomer is distributed throughout the polymer. Fluoropolymers specified are polytetrafluoroethylene, polychlorotrifluoroethylene, and a vinylidene fluoride-chlorotrifluorethylene copolymer. The fluoropolymer may be in the form of a film, powder, aqueous emulsion or emulsion coagulate.  Monomers specified are styrene and substituted styrenes, allyl amines, vinyl heterocyclic amines, ethylenic sulphonic acids, and ethylenic carboxylic acids and their salts, esters, amides, nitriles and anhydrides.  Free-radical catalysts specified are persulphates and peroxides e.g. benzoyl peroxide. The action of the catalyst may be supplemented by the action of heat, ionizing radiation or ultra-violet light.  If the resulting material does not contain ion-exchange groups, these may be introduced by appropriate treatment. The examples describe the following processes; (1) immersing a film of polytetrafluorethylene in styrene containing benzoyl peroxide followed by sulphonation of the polymerized material; (2) as in (1) but with the sulphonation treatment replaced by chloromethylation and amination with N-methylpiperidene; (4) styrene is polymerized in an aqueous emulsion of polytetrafluorethylene, the product being formed into a film and sulphonated; (5) a mixture of powdered polytetrafluorethylene and 2-vinyl-5-ethyl-pyridine is polymerized, the product being formed into a film and treated with trimethylene chlorobromide; and (6) a mixture of styrene and an aqueous emulsion of a chlorotrifluoroethylene-vinylidene chloride copolymer is polymerized with the aid of potassium persulphate, the emulsion is coagulated, the product formed into a film and then sulphonated.
Patent NL-6901201-A (NL)
Title: Photographic print setting apparatus and - materials
IPC: G03F7/16
Filed: 1969-01-24
Abstract: Printing plate is composed photographically from an image bearing transparency by a device comprising an actinic light source, with a flat platform fitted at a distance from the light source, a feeding device for distributing liquid photohardening compound on the platform, a device for levelling the aplied compound to an even thickness and a transparent film carrier with a flat side and a clamp for fixing an image-bearing transparency in contact with the flat side, so that the film holder can be fitted between the actinic light source and the platform. Specifically, the liquid hardening compound consists of a polyene containing at least two reactive unsatd carbon-carbon bonds per mol, a polythiol, contng at least two thiol gps per mol, and a hardening accelerator, the total accumulated functionality of the reactive unsatd carbon-carbons bonds per mol. in the polyene and the total thiol gps per mol in the polythiol being more than 4.
Patent NL-7000305-A (NL)
Title: Transform textile fibres into dis continuous - filaments
IPC: D04H1/04
Filed: 1970-01-09
Abstract: A mass of undrawn continuous filaments of synthetic polymers, such as (Nylon 6.6), polyvinyl chloride, polyethylene terephthalate etc. which can be drawn in the cold, is transformed into a mass of discontinuous filaments, the mass of continuous fibres, of waste materials such as bobbin ends, is advanced by a feed belt at low speed and under stress into a preparation machine of the Garnett type. It is then drawn and separated, the filaments being elongated at high speed and crimped at random, they are then broken or cut into variable lengths, all in one operation. The mass of discontinuous fibres thus produced is formed into a ribbon.
Patent NL-7412624-A (NL)
Title: Photovoltaic solar cells - made by heating substrate on molten tin and spraying it with cadmium chloride and copper acetate
IPC: H01L31/0336
Filed: 1974-09-24
Abstract: A cell formed on the conducting surface of a substrate, where the surface temp. is held constant by partly immersing the substrate in a molten bath. A soln. contng. several cpds. is sprayed on the surface, forming the first microcrystalline layer of a heterogeneous junction the spraying speed being regulated so the surface temp. is held constant. At least one second layer of the junction is then deposited and electrodes put on this top layer. The first layer is pref. evaporated with the help of intense ultra-violet light and one of the electrodes is a rectifying junction only permitting one-way passage of the current. The advantages are improved performance and lower scrap.
Patent NL-7415109-A (NL)
Title: Coin operated ice cream vending machine - sectioned belt conveyor is advanced in steps by square drive shafts
IPC: G07F11/58
Filed: 1974-11-20
Abstract: An ice-cream vending machine for the coin-operated sales of ices from a refrigerated store, having a circulating conveyor with a number of compartments for transferring the ice-cream or other frozen product from the store to the discharge point in the form of a belt (1) built up of separate flat sections (2) hinged together and passing round square section shafts top and bottom, which have lengths of sides corresponding to the width of a belt section. Each revolution of the square shafts, initiated by the insertion of a coin, advances the belt by one section. The belt conveyor can be designed as a unit for attachment to a standard deep-freeze cabinet.
Patent NL-7500239-A (NL)
Title: Collecting refuse and removal in large quantities - using supply carts to store, transport to press, movable receptacle to removal container
IPC: B65F9/00
Filed: 1975-01-08
Abstract: The arrangement is of the type using a number of supply carts, a press (6) and a number of containers (12) in which the compressed refuse is taken away in large portions. It comprises a buffer store (4) into which the refuse is dumped by the supply carts, a transport mechanism (5) which periodically transfers quantities of refuse from the buffer store to the press (6), and a receptacle (9) movable along a track, which receives the compressed material from the press and transfers it to a waiting container (12) for disposal. The receptacle (9) may be movable laterally along the track whilst at the same time being capable of limited longitudinal movement.
Patent NL-7614625-A (NL)
Title: Watering can for controlled pouring - has separate reservoir vent sealed by finger or thumb
IPC: A01G25/14
Filed: 1976-12-31
Abstract: The liquid pouring vessel is particularly for use as a watering can for indoor plants. It comprises a reservoir (1) which can be sealed off airtight apart from the pouring device (6, 7) open during use, and which has a separate vent opening (5), which can be sealed off with the thumb or finger holding it. The opening can be shaped so as to allow drip-feeding by incomplete closure, and can comprises a number of ports. The pouring spout can be bent over so that the emerging jet of fluid is virtually vertical. The vent opening can be incorporated in the hollow handle, or in the filling spout, and the latter can also accommodate the pouring spout.
Patent NL-7802908-A (NL)
Title: Collapsible wall for exhibition building - comprises straight or curved rectangular frames slid or hooked together
IPC: E04B2/74
Filed: 1978-03-16
Abstract: The collapsible wall is composed of a set of hooked rectangular panels, either straight or curved. The straight or curved frames with bent-over strips are slid or hooked together to forma wall without loose parts, e.g. for temporary use in exhibitions, hospital, museum etc.
Patent NL-7902799-A (NL)
Title: Heating and/or cooling system - has separate hermetically sealed heated pumps in cascade, may exchange heat at more than three different temps.
IPC: F25B27/00
Filed: 1979-04-10
Abstract: The thermally driven heat pump system is intended for a central heating and/or cooling installation. It comprises a number of separate hermetically sealed thermally driven heat pumps connected in cascade. The arrangement may be such that heat is exchanged with the environment at more than three different temp. levels. The heat dissipation may be from a condenser other than the lowest temp. condenser. When used as a central heating system, the heat absorbed from the environment at low temp. is pref. taken from a space whose temp. is kept above 5 deg. to 8 deg. C by the heating system.
Patent NL-7903876-A (NL)
IPC: C07C27/02
Filed: 1979-05-17
Abstract: The invention relates to a method for the preparation of a pure alkali metal benzoate, specifically of a pure alkali metal benzoate from benzyl benzoate prepared by oxidation of an alkyl benzene compound, specifically toluene, with a gas containing molecular oxygen, besides benzyl alcohol. Very specifically the invention relates to a method for the preparation of sodium benzoate besides benzyl alcohol. For this purpose crude benzyl benzoate is subjected to a treatment with a reducing substance to convert impurities, under such circumstance that, in the process, there will be no conversion of any substantial quantity of benzyl benzoate. Subsequently the benzyl benzoate is saponified to the alkali metal benzoate and benzyl alcohol.
Patent NL-7906688-A (NL)
Title: Simulated brick wall panel - has chipboard base with simulated mortar layer and thin bricks cast on using template to give bonded pattern
IPC: E04F13/14
Filed: 1979-09-06
Abstract: The arrangement is intended for producing a panel (2), partic. a chipboard panel, for covering a wall, which panel is provided with a bonded pattern of brick courses (4) applied with the aid of a template (5) so as to obtain the distances between the joints. The panel is first provided with a coloured layer (3) which simulates the mortar in the joints, and thin strips of simulated brick (4) whose thickness equals the usual depth of the joints, i.e. around 4 mm, are cast on to this layer using the template. These strips set as they dry and adhere to the panel.
Patent NL-8105607-A (NL)
Title: Lengthwise flame-cutting thick steel plates - supported by transverse upright plates with cut=outs on connected parallel horizontal plates
IPC: B23K37/04
Filed: 1981-12-14
Abstract: Installation for supporting thick steel plates during flame cutting in longitudinal direction, comprises a base formed by a number of parallel rows of thick steel plates interconnected end to end in longitudinal direction by rebated straight welds and a number of transverse plates placed on edge and fitting via double-recessed joins. The upper edges of these plates are provided with recesses where the supported plate is to be cut. Enclosures are arranged at either end of the plates to contain connection points for oxygen, natural gas and electricity and to store the cutting equipment, hoses, cables, etc.. Used in flame cutting thick steel plates in longitudinal direction. The arrangement provides a reliable and safe support which prevents tipping of the plates during and after cutting. It enables achieving a high production rate with a good quality of cut and accurate dimensional control.
Patent NL-8203079-A (NL)
Title: Room ceiling suspension arrangement - includes profiled lockable anchor beams mounted on reinforced walls to carry ceiling
IPC: E04B9/30
Filed: 1982-08-02
Abstract: Between two spaced reinforcing screen frames (3,4) are fitted two hooked anchor plates (5,6). After casting the concrete wall, the anchor plates are rigidly embedded in the wall. Protruding from the wall are two parts (7,8) also part of the anchor plates. The protruding parts have several rows of punched out lips pointing towards the wall. Between the protruding part fits a profiled beam (11), which may be pushed towards the wall and lock the lips. Inside the profiled beam fits a beam (18) on which the ceiling material e.g. plastics or textile is fixed.
Patent NL-8204984-A (NL)
IPC: A61F11/08
Filed: 1982-12-24
Abstract: An ear protector for keeping down sound in a personalized form by causing the insertion part to match the concha part of the auricle with an appendix that can open out in the auditory canal, said ear protector having a relatively wide duct, the widened part of which receives a sound damping filter having a bore whereby the sound damping filter is arranged with satisfactory fit in the widened part of the duct, while an elongate object is placed in the bore of the filter so that a free passage in the bore remains possible with a maximum difference in distance between the outer side of the elongate object and the inner side of the bore of 0.33 mm at the narrowest passage.
Patent NL-8300077-A (NL)
IPC: H04N9/85
Filed: 1983-01-11
Abstract: In present video equipment for recording a colour video signal on a magnetic tape the what is commonly referred to as the "colour under" transmission method is used. Therein, starting from the composite colour video signal, luminance and chrominance signals are separated from each other and both bandwidths are considerably limited. The frequency band of the luminance signal is converted to a first transmission band by means of frequency modulation. The frequency band of the chrominance signal is converted by means of amplitude modulation to a second transmission band located below the first band and which does not overlap this first transmission band. 
<??>In order to counteract considerable bandwidth limitation of these two signals and to reduce the influence of transmission noise on the chrominance signal, a transmission method is now proposed which will be denoted as the "color shift" method. Therein the composite colour video signal which is formed by a sequence of analogue line signals is sampled, as a result of which each analogue line signal is converted into a time-discrete line signal formed by a plurality of line signal samples occurring at a rate fs, each sample being formed from the sum of a luminance and a chrominance signal sample. Thereafter, these time-discrete line signals are submitted to a scrambling operation in which in accordance with a predetermined pattern a number of line signal samples is each time selected from the line signal samples of a group of time-discrete line signals for assembling time-discrete auxiliary line signals. This selection is effected such that of all those line signal samples which together represent a given time-discrete auxiliary line signal the associated chrominance signal samples all have the same polarities. As a result thereof the chrominance signal is converted without bandwidth limitation to a lower frequency band, while it continues to be located within the frequency band occupied by the luminance signal. This new composite colour video signal can now, after having been converted into an analogue signal, be transposed in its totality to a suitable transmission band by means of frequency modulation.
Patent NL-8300971-A (NL)
Title: Flow control valve for actuating cylinder - has flow regulating valve and parallel valve for rapid draining and return movement (NL 6.3.78)
IPC: F15B13/02
Filed: 1983-03-17
Abstract: The valve for fluid flow speed control is used in piston and cylinder actuator. The valve ensures rapid pressure reduction and is rapidly loaded for piston retraction. The valve body (1) has a restrictor for regulating flow through the valve. It also has a valve (5) for pressure setting. This latter valve is opened when the pressure exceeds a certain value. The pressure regulating valve has a spring (15) which can be adjusted externally. The valve system has a second flow path parallel to the first one. This second flow path has a valve for rapid draining of pressurised fluid, and allows the fluid to flow only in one direction.
Patent NL-8303046-A (NL)
IPC: H04N5/76
Filed: 1983-09-01
Abstract: The invention relates to a video-disc player in which by controlling a pivotal mirror rapid jumps over a large number of tracks can be made substantially within the field-blanking interval. In order to minimize the picture disturbance the jump is always started at the instant at which the duration of the remaining period until just before the address code within the next field blanking interval is equal to the anticipated duration of the jump to be performed, in particular by measuring the time which has elapsed since the previous read-out of an address code.
Patent NL-8401337-A (NL)
IPC: C04B35/06
Filed: 1984-04-26
Abstract: In the manufacture of refractory bricks containing CaO, a mixture is formed of a refractory composition of a material containing CaO and a binder composition, and bricks are moulded from the mixture. To avoid hydration of the CaO and avoid softening of the bricks on heating up, the material containing CaO is selcted from burned lime, burned dolomite and mixtures and the binder composition is present in an amount in the range 1 to 10% by weight based on the weight of the mixture and consists mainly of a thermosetting novolak type phenol resin composition and an anhydrous solvent consisting of at least one organic solvent present in an amount of less than 40% by weight based on the weight of the binder. The solvent compo= sition is chosen to be of a chemical nature such that, at least during mixing of the refractory composition and the binder composition, it substantially does not react with the CaO.
Patent NL-8402918-A (NL)
IPC: G01R19/00
Filed: 1984-09-25
Abstract: For displaying the ratio in decibels between the instantaneous value and the maximum value of a digital signal a rectified digital signal is serially applied to an input (4) of a level indicator. This indicator comprises a shift register (10) which, in the case of an indicator with a resolution of 2 dB, comprises three series-connected flip-flops (11, 12, 13). The input (M) of the first flip-flop (11) is connected to the input (4) of the level indicator. The flip-flops (11, 12, 13) each comprise an output (QA, QB, QC), which like the input (M) of the first flip-flop (11) are connected to the inputs of a combination circuit (20). The output (QC) of the last flip-flop (13) is also connected to the input of a read-enable circuit (15). For each bit of the digital signal which is loaded into the shift register (10) the combination circuit (20) generates a number from the signals on the outputs (QA, QB, QC) and the input (M) of the shift register (10), which number indicates how many times an amount of 2 dB should be subtracted from the said ratio. In an adder (30) this amount is added to the previous amount and the sum is applied to a memory (40) whose contents is transferred to a read-out device (50) at the instant at which the read-enable circuit (15) supplies an output signal.
Patent NL-8500615-A (NL)
IPC: G02B6/38
Filed: 1985-03-05
Abstract: The invention relates to a fine-adjusting device made of a metal plate (30, 40), in which slots, arranged in pairs and ending at both ends in holes, form at least a bar parallelogram (30-33; 40-43) with play-free flexible hinges (34-37, 44-47) as pivots, each bar parallelogram being provided with a fixed bar (30; 40), a shifting bar (33; 43) parallel to this fixed bar and two pivoting bars (31, 32; 41, 42). For a combined X-Y adjustment two shifting bars (33, 43), which are at right angles to each other, have to be connected by coupling bars (50, 51), which each (51, 50, respectively) move with the one shifting bar (33, 43, respectively) in the one direction (X, Y, respectively), and pivot with regard to the one shifting bar (33, 43 respectively) in the other direction (Y, X, respectively) in the same way as the pivoting bars (41,42 and 31,32, respectively) connected to the other shifting bar (43, 33, respectively), a stabilizing bar (60) being parallel to one (51) of the coupling bars and forming with that coupling bar a bar parallelogram together with two other bars (57, 63), one (63) of which is rigidly connected to the shifting bar (33), together with which the latter coupling bar (51) moves.
Patent NL-8700802-A (NL)
Title: External window cleaning tool - has washing section continuously supplied with clean water and held by inside magnets
IPC: A47L1/095
Filed: 1987-04-06
Abstract: The tool cleans the outsides of windows which are difficult to reach, having a holding and movement section on one side of the pane and a washing section on the other. Both halves contain magnets. A film of water is maintained between the pane and the washing section so as to use the adhesion effect. The washing section contains a brush to which clean water is continuously supplied via a hose from a tank suspended from the ceiling, while two rubber strips on it dry the pane.
Patent NL-9001289-A (NL)
IPC: F28D20/00
Filed: 1990-06-07
Abstract: The invention provides a heat accumulator for the storage and/or release of heat, consisting of a vessel having a wall which is at least partially heat-conducting, which vessel contains a crystalline material which exothermally absorbs and endothermally desorbs a heat-transporting substance. The crystalline material, in particular sodium sulphide, adheres to the wall of the vessel and remains adhering during use and has essentially the same structure in a state in which more heat-transporting substance is absorbed and in a state in which less heat-transporting substance is absorbed. In a process for the production of such a heat accumulator, the crystalline material is applied in the molten or highly hydrated state to the inner wall of a closeable vessel and is made to adhere to the wall by cooling and/or evaporation. An energy system, comprising such a heat accumulator, and a vaporiser and condenser, connected via a closeable vapour line to the heat accumulator, is also provided.
Patent NL-9002190-A (NL)
Title: Loudspeaker with spring-suspended diaphragm - has coil force-cooled by gas current
IPC: H04R9/04
Filed: 1990-10-09
Abstract: The loudspeaker comprises a unit generating a magnetic field while a spring-suspended diaphragm, cone, dome, etc. radiating sound is movable round a stable rest position. An electrical conductor such as a speaker coil and with electrical connections is joined to the diaphragm etc. and so positioned in the magnet field that when current is passed through it it exerts a deflecting force on the diaphragm. The conductor is force-cooled by a current of gas, typically ambient air. The magnet can be a permanent one and of neodymium, and the conductor can have a coating of corrosion and oxidation resistant material. The coating can also be heat resistant, and the loudspeaker can be of plastics, typically polyetherimide.
Patent NL-9300286-A (NL)
Title: Electron-optical corrective
IPC: C09B11/02
Filed: 1993-02-15
Abstract: For third-order aperture-fault correction of first order, first degree, axial and non-axial chromatic distortion, an electron-optical corrective intended for insertion behind the spherical lens is proposed in which, at the input side, on the optical axis in the direction of the beam motion is positioned an electrical or magnetic quadrupole 2 (first quadrupole) followed by an electrical or magnetic quadrupole 3 (second quadrupole) in the astigmatic intermediate image of one cross section (X- component of the axial path = 0), followed by an electromagnetic quadrupole 4 (third quadrupole) roughly in the next astigmatic intermediate image (Y-component of the axial path = 0), and of which the cross sections coincide in each case, and the remaining construction of the corrective from the central plane 6 following the aforesaid and perpendicular to the optical axis and asymmetric with respect to the as so far described corrective and the collective quadrupoles 2-4, 7-9 and the central plane 6 are overlapped by an electrical or magnetic octopole in each case. <IMAGE>