baber/WOPTO huggingface dataset:
Patent NL-2030364-A (NL)
Title: Blade angle adjustable fully-immersed motor impeller built-in tubular pump
Inventor: AIXIA ZHANG
IPC: F04D5/00
Filed: 2021-12-30
Abstract: The present invention relates to a blade angle adjustable fully-immersed motor impeller built-in tubular pump. A water inlet horn and a water outlet are connected to front and rear openings of a pump body respectively. A hub is coaXially connected in the pump body through a guide vane. A pump shaft is connected in the hub in a penetration manner and sleeved with an impeller part. The impeller part includes a shaft sleeve and multiple blades. The shaft sleeve is supported and connected to the pump shaft in the penetration manner through a bearing. Inner ends of the multiple blades are circumferentially fixedly connected to a periphery of the shaft sleeve, while outer ends are in interference fit with an inner wall of an outer connecting ring. A rotor of a ring structure is fixedly connected to an outer wall of the outer connecting ring by a bolt. A stator corresponding to the rotor is arranged in the pump body. The pump is simple in structure. Motor quality problems caused by the welding connection between the rotor and the impeller may be solved effectively. In addition, an angle of the bla
Patent NL-2033864-A (NL)
Title: Apparatus and method to adjust vane angle of double fabric shading by restraint of facing
Inventor: THOMAS J MARUSAK
IPC: E06B9/34
Filed: 2022-12-29
Abstract: Embodiments of the present disclosure provide an apparatus and method to adjust the angle of a double fabric shading by restraint of a facing in the double fabric shading. The apparatus may include a friction surface configured to selectively restrain movement of a first facing of a window shading. The first facing is coupled to a fabric supply roller of the window shading at a first position on an outer surface of the fabric supply roller and coupled to a second facing of the window shading through a plurality of vanes extending between the first facing and the second facing. Rotating the fabric supply roller of the window shading to extend or retract the second facing, while restraining movement of the first facing with the friction surface, adjusts an angular position of the plurality of vanes.
Patent NL-7009690-A (NL)
Title: Extrusion die for multi core composite - filaments offers stable long-run operation
IPC: D01D5/36
Filed: 1970-07-01
Abstract: Die for forming composite filaments has several cores of one filament material dispensed in a matrix of a second material. The core streams discharge into a chamber which converges at an angle Theta of =75 degrees and which is fed with an annular and pref. also an axial stream of the matrix material. Pref. subsidiary passages sheath each core sub-filament in matrix material (co-axial or eccentric). For preparation of multi-core filaments or for manufacture of very fine filaments by subsequently removing the matrix material. Die design maintains stable core and matrix patterns throughout long prodn. runs - the flow path of the core filament streams is almost linear to avoid material hang-up and degradation. Sheathing of each core stream by matrix material avoids internal coalescence of the core streams.
Patent NL-7104054-A (NL)
Title: Substd. N-tert. aminoalkyl benzamides
IPC: C07C233/12
Filed: 1971-03-25
Abstract: (I) N-(WNR1R2)-2-OA-3-X-4-Y-5-Z-benzamides. W = n- or iso-(CH2)2 to (CH2)4. In most examples (WNR1R2) = diethylaminoethyl, -CH2CH2NEt2 A = H, n- or iso-alkyl (C1 to C6); vinyl, allyl; (CH2)pNR3R4(p=2 to 4) X,Y,Z = n- or iso-alkoxy (OC1 to OC6); Hal, O(CH2)pNR5R6, NH2, NHR, NHCOR, COR, SR, SO2NR8R9 (R, R8, R9 = alkyl (C1 to C4)). Examples use Hal, Me, NH2, SO2NH2, SO2NMe2. NR1R2, NR3R4, NR4R5 (Rs identical or different) = dialkylamino-alkyl (C1 to C6), morpholinyl, piperidinyl, pyrrolidinyl, piperazyl, N-alkylpiperazyl, N-alkylsulphonyl-piperazyl, imidazolyl. (II) Addition salts of I with non-toxic acids. HCl, HBr, HI, H2SO4, H3PO4, citric, tartaric, lactic, acetic, ethanesulphonic diphenylacetic. (III) Quaternary ammonium salts of I by reacting with alkyl halides, di MeSO4, BzCl, Me-benzene-and Me-p-toluene-sulphate. Neuroleptics, psycholeptics, anti-emetics, antitravel sickness tranquilisers, analgesics, anticonvulsives, antifibrilliants, antihistaminics, antipruritics, antitussives.
Patent NL-7209073-A (NL)
IPC: F16L59/153
Filed: 1972-06-29
Abstract: 1343590 Flexible duct; hose joints OWENSCORNING FIBERGLAS CORP 11 July 1972 [13 July 1971] 32378/72 Addition to 1167154 Headings F2P and F2G A flexible duct, e.g. for use in air conditioning or heating systems, comprises a tubular insulating wall 20 including glass fibre mat 21, and a supporting helical coil 10 of flat, corrosion resistant strap material formed into a closed loop 11 on at least one end with fastening means 12, 13. As shown in Fig. 1, the fastening means 12, 13 may include metal seals 12 clamped around overlaying portions of the coil strap 10 or spot welds 13. The outer face of the coil 10 receives an adhesive to bond it to the tubular wall 20. The coil may be of galvanized steel strapping or of glass fibre reinforced plastics. The wall 20 may further include an inner layer 22 of fabric having sound-admitting openings therein and an outer layer 23 of gas impervious material. The inner layer 22 is bonded both to the insulating mat 21 and to the coil 10 and may be of glass fibre serim or a gas impervious sandwich of glass fibre scrim between vinyl layers. The outer layer 23 may also be of such material. Successive lengths of duct may be connected together with a cylindrical connecting collar 30, Fig. 3, comprising a strip of resilient sheet metal coiled to overlap the ends and reduce the diameter sufficiently for insertion into the duct bore. Sheet metal screws 40, which may be selfdrilling and self-tapping, are driven through the insulating mat 21 and inner layer 22, after pulling back the outer layer 23, and into the collar 30 to compress the duct wall between washers 50 and the collar 30. The outer layer 23 is then returned over the joint and tape 70 is applied around the wall to provide a gas impervious connection.
Patent NL-7301804-A (NL)
Title: Die for extruding hollow thermoplastic profiles - having two parts defining shaping channels and supply channels, and strip supporting mandrels
IPC: B29C48/10
Filed: 1973-02-08
Abstract: Die for extruding hollow profiles, such as hose or tubes, of thermoplastic material has two parts together defining the outer periphery of several shaping channels, whose common symmetrical flare coincides with the partition plane, supply channels for the shaping channels, mandrels, and a cavity at the joining place of the shaping channels and supply channels. The supply channels discharge close to each other in a transverse plane at the place where the cross section of the shaping channel of the outlet approaches as closely as possible, or equals the total cross section of the supply channels. The walls of the channel flowingly pass into at least the outer lines of the cross section of the supply channel, and at least a part is provided with a transverse groove for receiving a strip in which the mandrels are fastened.
Patent NL-7406787-A (NL)
Title: Analysis by enthalpy measurement - using stable part reagent streams where reagent is unstable
IPC: G01N25/48
Filed: 1974-05-21
Abstract: In continuous analysis by enthalpy measurement, in which a sample stream and a reagent stream are brought together in a period of a few secs. at the same constant temp. after which the temps. in the two streams are detected prior to mixing them while a reaction takes place, the product stream being discharge after its temp. hs been measured the three measured values being processed in a circuit, the improvement whereby the reagent stream is composed of at least two part streams of different, but in themselves stable, reagents which are mixed directly before the composite reagent stream is brought approximately to the required constant temp. The process is particularly suitable for the continuous determination of NH3 in its aqs. soln. by reaction with HCHO and NaOH which form the part reagent streams. Permits analysis by measuring heat of reaction where the reagent is in itself relatively unstable and cannot be stored as such since e.g. the NaOH causes polymerisation of the HCHO.
Patent NL-7504387-A (NL)
IPC: C07D233/58
Filed: 1975-04-11
Abstract: Compounds of the formula   <IMAGE>   wherein Z is a direct bond or alkylene of 1 - 3 carbon atoms which is unsubstituted or substituted on the carbon atom alpha to the phenyl group by alkyl or unsubstituted or substituted phenyl, R2 and R3 singly are H, alkyl, alkoxy, alkylmercapto, halo, nitro or, collectively, C4H4, and R4 is alkenyl, alkinyl, unsubstituted or substituted phenyl or phenylalkyl, or, when Z is substituted methylene, also alkyl, are useful in combating Germatophyte infections, especially Trichophyton rubrum and mentagrophytes, and yeast infections, especially Candida albicans, as well as bacterial and fungal infections.
Patent NL-7509422-A (NL)
Title: Granular polyphenylene oxide blends - with better processability - for mouldings in electrical, electronics and automobile inds
IPC: C08F283/08
Filed: 1975-08-07
Abstract: Moulding composition is based on polyphenylene oxide (PPO) with particle size 5 - 500 mu and opt. contains polymer of aromatic vinyl cpd. (e.g. styrene). Processability is improved when particle size is within stated range and after-treatment of polymer simplified.
Patent NL-7612388-A (NL)
Title: Tongs for spherical mouldings, esp. minced meat balls - have mould halves rotating during operation and ejecting clamps
IPC: A23G9/22
Filed: 1976-11-08
Abstract: A coherent plastic substance is moulded mechanically into a form which is symmetrical around its axes, esp. into a ball of mince for culinary purposes; a suitable quantity of the substance being shaped in a band tool into a ball from which it is ejected automatically. The material is compacted all round by pressure in a mould practically filled with the substance, which can be fully closed, whilst, during the closing and opening of the mould, the whole surface of the substance forming the ball is exposed to thrust pressure from the mould walls. The pressure to which the material is exposed, is a rotary one contributing to the formation of the ball, applied by the mould walls which rotate during closing and opening. As the ball is released by the opening of the mould, contact between it and the mould is interrupted directly and completely by clamps which hold the ball until it can be removed from the mould by the force of gravity. The device has the form of a pair of tongs with the mould closed by two half jaws which are held normally open by a spring between the hinged handles. The mould is formed by two dies through the bottom faces of which a clamping peg projects, the the two pegs grip the finished ball. The moulds and the clamping pegs are connected mechanically to the elements for rotating the moulds, so that, during closing and opening the distance between the opposing ends of the pegs can be increased or reduced. The device is a much simpler mechanism than modified mincing machines and does not become fouled up with deposits of the tacky substance. It can be used conveniently in small cafes, snack bars, etc., as well as by the housewife.
Patent NL-7801018-A (NL)
IPC: G04G9/00
Filed: 1978-01-27
Abstract: An electronic clock with a guest-host liquid-crystal display is described. The specified drive electronics subject the guest-host liquid-crystal display to frequencies in excess of 32 Hz, preferably about 1 Hz. As a result, the power consumption of the guest-host liquid-crystal display is reduced to such an extent that there is no need for the previously used complex twisted nematic cell. Apart from the price advantage, the elimination of the previously necessary polarisers allows the proposed guest-host liquid-crystal cell to have a greater viewing angle for the display. <IMAGE>
Patent NL-7801050-A (NL)
Title: Telecine flying spot scanner - has beam splitting prism to produce two optical images for interlaced scanning (NL 2.8.78)
IPC: H04N3/36
Filed: 1978-01-30
Abstract: The flying spot scanner for telecine applications has an optical system for producing two images of the film. A film moves (9) in the direction indicated by the arrow (10). Further arrows (7, 8) indicate the direction and amplitude of scanning of the film in adjacent frames. A shutter (5) moves in the direction of the arrow (15) in synchronism with the flying spot. An objective (6) form an image of the film which is directed on to the pickup screen (1) by an arrangement of three prisms (2-4). A half-silvered mirror (13) splits the beam into two.
Patent NL-7812665-A (NL)
Title: Cellulose acetate filtration membranes with high acetyl content - have high retention and flux e.g. in reverse osmosis desalination
Filed: 1978-12-29
Abstract: Cellulose acetate membrane for membrane filtration comprises a relatively thick support layer with an open structure carrying a relatively thin layer of cellulose acetate molecules in which the cellulose acetate has an acetyl content of 42.7-43.5 wt.%, esp. 43-43.2 wt.% w.r.t. cellulose acetate. Use of cellulose acetate with a higher acetyl content than in prior art membranes gives reverse osmosis desalination membranes with good desalination properties which do not need ripening at elevated temps., as is required with known cellulose acetate desalination membranes.
Patent NL-7815026-A (NL)
Title: Stub-less multi-ply business form - has plies selectively coated with inter-reacting chemicals forming coloured marks on pressure application
IPC: B41L1/36
Filed: 1978-07-21
Abstract: Unit set of multiple plies includes superimposed top, intermediate and bottom plies devoid of tear lines. Each is coated on selected surfaces with chemicals capable of reacting with one another to produce a coloured mark. The top and bottom piles are interconnected by a removable glue flap, and portions of the glue extend through holes lying along a margin of the bottom ply so as to thereby interconnect the intermediate and bottom plies together. The top ply is coated front and back and the intermediate ply is coated on its back surface with a micro-encapsulated colour precursor, while the bottom ply is coated front and back and the top surface of the intermediate ply is coated with a record-developing material. Upon application of pressure to the set, coloured marks are formed on the intermediate and bottom ply top surfaces as the reactive components of the coatings on mating surfaces react. The plies are capable of rearrangement.
Patent NL-8005818-A (NL)
Title: Motor-operated fingernail trimmer - comprises driven cutting tool turning in holder, with stop for guarding finger
IPC: A45D29/02
Filed: 1980-10-22
Abstract: A driven cutting tool (3) turns in a holder (2), with a stop (8) provided near the working face of the tool for the finger (10). A guard (5) can be fixed to the holder, enclosing most of the tool, with an opening for insertion of the nail. The stop is formed by part of the guard extending along the opening, which can be slot-shaped, the stop being a protruding boss. The tool can be in the form of a milling cutter, with a polishing tool coupled to it.
Patent NL-8105616-A (NL)
Title: Reducing downward adhesive force by ground on foundation pile etc. - by applying two superimposed layers with low friction between them
IPC: E02D5/22
Filed: 1981-12-14
Abstract: The arrangement is intended for reducing the negative (i.e. downward) adhesive force ("stiction") exerted by the ground mass on a building element, such as a foundation pile, tunnel section, sewage pipe section etc., by applying a friction-reducing coating to the surface of that element. This coating is formed by two layers which have a low coefft. of friction relative to one another, e.g. two plastic (polyamide or more preferably polythene) sheets, or a plastic outer sheet over a lubricant layer. The covering may consist of two plastic sheets with a lubricant between them, pref. pre-mfd. in rolls for application on site.
Patent NL-8201137-A (NL)
Title: Amplifier used in DC motor control loop - uses diode-switched feedback ladder to produce output proportional to inverse of square root of input
IPC: G05D3/14
Filed: 1982-03-19
Abstract: This amplifier is used in a control loop that controls the position of an object moved by a d.c. motor. The control loop can be used with a film cassette in an X-ray machine. The characteristic of the loop is such that the motor slows when the object is nearing its required position, thus limiting vibration or shock. A voltage proportional to the difference between the required and actual positions of the object is fed to the amplifier input. The amplifier output is inversely proportional to the square root of the difference signal. The input is fed via a resistor (Ri) to the inverting input of an operational amplifier (11). The feedback impedance is a fixed resistor (R1) in parallel with a ladder of diode-switched resistances. Each resistance in the ladder is in series with a number of back-to-back diodes or reversed pairs of Zener diodes, which will only conduct if the voltage between the output and input amplifier exceeds a level dependent on the number of diodes or on the Zener voltage of those diodes.
Patent NL-8201824-A (NL)
IPC: C10G1/06
Filed: 1982-05-04
Abstract: Coal is continuously fed into an extruder and reacts therein at elevated pressure and temperature and possibly in the presence of a catalyst with hydrogen and/or hydrogen containing compounds added to the contents of the extruder on at least one spot situated at a distance of at least three times the inner diameter of the extruder in front of the end of the screw. From the reaction product leaving the extruder hydrocarbons which are fluid under normal conditions are separated. Part of these hydrocarbons which are liquid under normal conditions may be recycled to the extruder.
Patent NL-8301097-A (NL)
Title: Continuous form for tabulating machine - has numbered width positioning line for columns containing number series
IPC: B42D12/02
Filed: 1983-03-29
Abstract: The different columns of the form used for computer print-out or tabulating machines, may be printed in different tints. In the coloured columns, the printed details are easily read out with the aid of a width positioning datum line with number series. A column (7) on the form is produced by adjacent numbers (7) printed in tint giving the numbering of the columns as well as the different colour for easy read out.
Patent NL-8301375-A (NL)
Title: Removing gallic acid from tanning solns. - by ultrafiltration using asymmetrical membrane
IPC: B01D69/02
Filed: 1983-04-19
Abstract: Gallic acid (I) is removed from a tannin soln. by membrane filtration using an asymmetrical membrane having the following properties: (a) NaCl retention capacity of 0-10% using a 1 g/l NaCl soln.; (b) a polyethyleneglycol retention capacity of 0-40% using a 1 g/l soln. of polyethyleneglycol with a mol.wt. of 1500; (c) a polyethyleneglycol retention capacity of 0-50% using a 1 g/l soln. of polyethylene glycol with a mol.wt. of 4000; (d) a demineralised water flux of at least 10 1/m2.h.100 kPa; (e) a gallic acid retention capacity of at least 10% using a 1 g/l soln. of (I); and (f) a tannin retention capacity of 20-99% using a 1 g/l soln. of tannin. The membrane filtration is carried out at a press. of 1500 kPa, a longitudinal flow rate of 2.36 m/sec and a temp. of 25 deg.C.
Patent NL-8402971-A (NL)
Title: Concrete building panel casting method - using two reinforced concrete shells with apertures for casting
IPC: B28B1/16
Filed: 1984-09-28
Abstract: Two outer shells of reinforced concrete are interconnected, and apertures are used for casting the panel in two phases. Concrete outer shells are reinforced, and interconnected by reinforcing wires. The panels are then cast in two phases. A vibratory mechanism is used to ensure complete amalgamation of the concrete between the outer shells.
Patent NL-8501302-A (NL)
Title: Pig sty ventilation system - has air buffer zone under ceiling with pit compartments separated by transverse walls
IPC: A01K1/00
Filed: 1985-05-08
Abstract: The enclosure esp. for small livestock i.s., a sty for piglets or pigs is provided with a compartment (7) separated from each other by dividing walls (8) across the sty. The compartments are enclosed on the upper side by a ceiling (9). At the height of the ceiling, air supply passages are provided along the dividing walls. Air enters the compartment through openings in ceiling plates (4) bordering the supply passages. The passages are provided with perforated plates and are in open connection with an air buffer zone (12). The ceiling plates extend from the end near the dividing wall inclined at an angle of about 45 deg. in the direction of the ceiling. The passages are in open connection with the air buffer zone along their whole length. Under one air supply passage is a heating element against the wall.
Patent NL-8502329-A (NL)
Title: Cooled, food display cabinet or counter - has ventilator with cooled ducts positioned under food display trays and goods displayed on bottom and on grid
IPC: A47F3/04
Filed: 1985-08-23
Abstract: The cooled air in display counter has air recirculated by a number of vertical ventilators. Their blades partly protrude through apertures in ducts under the display trays. The cabinet includes a base in which the cooling pipes (2a, 2b) are connected to cooling unit. These are fitted in horizontal air duct (4) with top walls (5) forming the bottom of display top case (6), which has transparent panels (7,8) through which the goods are visible and displayed on the bottom (5) or grid (9). Ventilators (15) have vertical spindles (16) and blades protruding slightly through apertures. An electric motor (17) is fitted in the base, and recirculating cooling air is controlled by a speed regulator (18).
Patent NL-8601508-A (NL)
Title: Probe to determine drop curve of bulk material fed into blast furnace - is inserted in path of material and has spaced material contact sensors, pref. microswitches, connected to microprocessor
IPC: C21B7/24
Filed: 1986-06-11
Abstract: The measuring unit is intended for determining at least part of the drop curve formed by bulk material as it is loaded, e.g. into a blast furnace via a revolving chute. It comprises a probe which is insertable into the path of the material and provided with spaced detectors responding to contact with the material. The detectors are pref. enclosed by the probe and may be actuated by respective stems projecting through openings in the probe and preferably covered by portions of spring plates each having one end secured on the upper surface of the probe.
Patent NL-8601649-A (NL)
IPC: B01J27/00
Filed: 1986-06-24
Abstract: The invention relates to the preparation of brominated derivatives of diphenyl ether. This process includes preparing an underbrominated product and perbrominating the by-products of this reaction. This process is particularly suitable for the preparation of octabromodiphenyl ether and decabromodiphenyl ether.
Patent NL-8900688-A (NL)
Title: Catalytic hydro-desulphurisation and hydro-denitrification - using catalyst prepd. by impregnating carrier with precursors for Gp=VIII metal and phosphorus components and treating with hydrogen
IPC: C10G45/06
Filed: 1989-03-21
Abstract: Hydrocarbon feeds are hydro-desulphurised and/or hydro-denitrogenised by contact with H2 at raised temp. in presence of a catalyst comprising a carrier and (a) a P component and (b) a hydrogenation component comprising a Gp. VIII metal. Components (a) and (b) are applied by impregnating the extruded or compacted carrier with effective amts. of precursors of (a) and (b) either (i) simultaneously or (ii) in sequence, and treating the material with a gas contg. H2 at raised temp., (i) after the impregnation or (ii) (1) during and/or after the last impregnation step when using a gaseous precursor for (a), or (2) after the last impregnation step when using a non-gaseous precursor.