baber/WOPTO huggingface dataset:
Patent NL-6514991-A (NL)
IPC: B01J35/10
Filed: 1965-11-18
Abstract: A second vinyl ether is made from a first vinyl ether by transetherification, by contacting the said first ether with an organic hydroxy compound under substantially anhydrous conditions (defined as up to 10% water present) in the presence of a salt or co-ordination compound of Ru, Rh, Pd, Os, Ir or Pt, whereby the second vinyl ether is formed, comprising a vinyl moiety from the starting vinyl ether, and an organic moeity from the organic hydroxy compound. The starting vinyl ether may be of formula <FORM:1105956/C2/1> wherein R1, R2 and R3 represent aliphatic, cycloaliphatic, aryl or heterocyclic groups, or wherein any two of R1, R2 and R3 form part of a cyclic group as defined above, and R6 represents an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aralkyl or heterocyclic group. Methyl vinyl ether and isobutyl vinyl ether are specified.  The organic hydroxy compound may carry further substituent groups, e.g. ketone, ether, ester, hydroxy, halogen or amino. Examples include C1- 20 alkanols (many named), phenols, cresols, xylenols, rescorcinol and hydroquinone. Particular catalysts are palladous chloride, bromide or acetate, lithium chloropalladite or bromopalladite, and dichloro-bis-(benzonitrile)-palladium (II). The complexes among these may be prepared in situ by conducting the transetherification in a solvent which can complex with the simple salts, e.g. sulphoxides, sulphones, benzonitrile or diethylene glycol dimethyl ether.  Suitably reaction proceeds at -50 DEG  to +200 DEG C. at 0.1-1.0 At., with a catalyst concentration up to 1 M. Additionally, there may be present as complexing agent an alkali metal halide (not the fluoride), e.g. lithium chloride.  To suppress acetal formation, a stationary content of up to 20 wt. per cent of an acetal may be incorporated.  In examples, isobutyl methyl acetal, diisobutyl acetal, and acetaldehyde appear as by-products in the reaction of methyl vinyl ether with isobutanol. The product may be recovered by distillation, crystallization or countercurrent solvent extraction.
Patent NL-6816207-A (NL)
IPC: B29C48/03
Filed: 1968-11-14
Abstract: Method for supplying material of low bulk density to screw extrusion apparatus comprises forcibly conveying the material from a funnel towards the main screw with the aid of an auxiliary screw extending into the funnel and placed within an almost vertical transfer tube, the funnel conveying in the direction of the transfer screw, while the material is stirred in a direction of rotation opposite to the direction of rotation opposite to the direction of rotation of the auxiliary screw. - The method and apparatus are used in the recovery of waste synthetic fibres, esp. polyamide fibres, by fusion and re-extrusion. In previous apparatus, difficulty was experienced in the continuous supply of the fibres to the extruder. The present method and apparatus enable synthetic fibres to be continuously supplied to the extruder without difficulty.
Patent NL-7202754-A (NL)
Title: Wear resistant white iron - contg trigonal or orthorhombic carbides in austenitic matrix
IPC: C22C37/06
Filed: 1972-03-02
Abstract: The white iron has the compsn. 3-4% total carbon, 0-2.5% Si, 7-15% Mn, 8-15% Cr, bal. Fe plus possibly up to 5% other alloying consistuents. It is used in grinding and crushing processes e.g., as mill liners, grinding balls, rolls etc. Toughness and wear resistance are achieved without use of costly alloying elements such as Ni or Mo.
Patent NL-7403998-A (NL)
Title: Tamper-proof container sealing process - applies hot air current simultaneously from all directions on plastic sealing ring
IPC: B67B5/00
Filed: 1974-03-25
Abstract: The neck of the container, e.g. a bottle, is closed and sealed by a plastic cap having a sealing ring running along the lower edge of a tear-off section and engaging behind a collar on the neck, and after fitting the cap on the neck a current of hot air is applied on the sealing ring to heat it to above the temperature at which the plastic can be worked. The air or gas is simultaneously applied, via an annular gap, onto the entire surface of the sealing ring periphery, while the cap is stationary and on the neck. The bottle can be carried on a non-rotating support, and an annular mouthpiece can be fitted over the cap, having a narrow internal peripheral slot for the hot air at the height of the sealing ring.
Patent NL-7512113-A (NL)
IPC: C08J5/22
Filed: 1975-10-15
Abstract: 1479388 Cation exchange membranes in electrolytic cells DIAMOND SHAMROCK CORP 15 Oct 1975 [16 Oct 1974 16 June 1975]  42309/75 Heading C7B [Also in Division C3] Cation exchange membranes for use in an electrolytic cell are obtained by surface treatment of a membrane comprising a fluorine containing polymer having pendant sulphonyl groups with an acyclic polyamine other than ethylene diamine to convert the sulphonyl groups to the form -SO 2  NRR' NRR", optionally after a pre-treatment with ethylene diamine, on one side, the remaining sulphonyl groups being in the form -SO 3 R where R is H, Na or K. R' is C 3 -C 6  alkylene, Z 2 NR", or ZNR" Z 2 NR", Z is C 2 -C 6  alkylene and R" is R or -SO 2 -. If the membrane is first treated with ethylene diamine, groups to a depth of 2.5-25 microns are converted to -SO 2  NR-C 2 H 4 -NRR". The remainder of the treated depth, up to about 50 microns and to an extent of at least 10 microns in the absence of ethylene diamine treatment, is treated with a polyamine e.g. 1,3-diaminopropane, dipropylene triamine, diethylene triamine, or butylene diamine. Treatment with alkali metal hydroxide converts other sulphonyl groups to the -SO 3 R form. The polymer is preferably a copolymer of tetrafluoroethylene and CF 2 =CFY f SO 2 F where Yf is a C 2 -C 8  bivalent perflourinated aliphatic radical. The membranes are used in the electrolysis of brine with the treated surface facing the cathode.
Patent NL-7702479-A (NL)
Title: Reinforced concrete mould plate prodn. - involves prestressed reinforcement, concrete rolling and fitment of grids on reinforcement fixtures
IPC: E04B5/38
Filed: 1977-03-08
Abstract: Method for producing a reinforced concrete mould plate (1) has the reinforcement provided with fixtures to take subsequently grid structures, with the concrete around the reinforcement being disturbed. The reinforcement is pre-stressed, the stressing being independent of the building structure. The lengthways reinforcement rods (2, 3) are laid around and over and above the crossways rods (4). The concrete itself is rolled. The grid structures (12) are placed on the prepared mould plate in such a way that a lengthways runner lies above a number of fixtures, couplings being fitted between the fixtures and the lengthways runner (5). The fixture has a bowl-shaped component which near its base has receiving apertures for a reinforcement bar, there being a space between the base and the bar.
Patent NL-7704820-A (NL)
Title: Independent drive wheels for invalid's chair - has separate motor with speed control for each wheel
IPC: A61G5/04
Filed: 1977-05-02
Abstract: The invalid chair has a frame and two pairs of wheels. In each pair, each wheel is driven by a separate motor connected to a control circuit maintaining its speed at the desired value. A circuit can be provided for generating an adjustable reference signal and feeding it to each control circuit, and for coupling the circuits together, by moving a control in one of two directions. A comparison circuit can be incorporated in the control circuit, the reference signal and an output signal from a tacho-generator coupled to the motor spindle being fed to its input. An integrator is connected to its output, the integrator output being connected to the motor supply circuit input.
Patent NL-7804536-A (NL)
Title: Electrophotographic transparent copy sheets - with a coating of high purity cadmium sulphide etc. in microcrystalline form
IPC: G03G5/082
Filed: 1978-04-27
Abstract: Photoconductive coatings 0.1-2 microns thick are formed on a flat substrate. The coatings contain an inorganic cpd. (I), esp. CdS, which, apart from dosing cpds., is of very high purity and has virtually perfect stoichiometry in deposited form. The (I) is in microcrystalline form, with hexagonal tightly packed crystals 600-800 angstroms dia. The crystals are uniform with a length equal to the thickness of the coating, the crystals being oriented mainly perpen dicular to the surface of the substrate. A surface layer nearly equals to 20-50 angstroms thick is provided which differs chemically from the remainder of the deposit, and which contains combined oxygen. Prods. are useful electrophotographic copying elements which can be charged e.g. by corona discharge, exposed and developed by a toner in the usual way. The coatings have high sensitivity, long life, high resolution good wear resistance, resistance to high temps., and a high degree of transparency, and are relatively cheap to make, and panchromatic. The exposed and developed toner image can be transferred to a copy sheet and fixed (e.g. by heating) in the usual way to form a copy, or if the material is made on a transparent (e.g. polyester) base, the image can be fixed on the element to give a copy which can be projected.
Patent NL-7900581-A (NL)
Title: Recovering a uranium-contg. concentrate and purified phosphoric acid - from wet process acid, using an inorganic fluorine contg. pptn. agent and an organic partition agent
IPC: C22B60/02
Filed: 1979-01-25
Abstract: In a process for recovering a U-contg. concentrate and purified H3PO4 from wet process H3PO4, crude acid is treated with an inorganic F cpd. (I) as precipitating agent in the presence of an organic partition agent (II). Resulting ppte. is then sepd. from teh residual mixt. of (II) and H3PO4. Pref. (I) is NH4F, alkali(ne earth) metal fluorides or HF. The (IIe is e.g. acetone. Pref. 120-900 wt.% (IIe and 7-0.15 wt.% (I) are used w.r.t. P2O5 in the phosphoric acid. Uranium and other metals can be pptd. almost quantitatively without noticeable losses of H3PO4. Smaller amts. of solvent can be used thanin prior art processes, and less H3PO4 is converted into ammonium phosphate.
Patent NL-8002991-A (NL)
Title: Packing meltable cheese by pouring it into olive oil - allowing it to set, then sealing pack with cheese still submerged, oil may be spiced
IPC: A23C19/084
Filed: 1980-05-23
Abstract: The arrangement is intended for packing meltable (processed) cheese. The molten cheese is poured into a liq. in which it is allowed to cool and set after which it is packed whilst remaining in that liq. The liq. is olive oil-based. The olive oil-based liq. may contain spices such as pepper and the pack (e.g. a can) may be internally lined with grease-proof paper.
Patent NL-8200381-A (NL)
Title: Injection moulded plastic crate - has offset integral wall portions near openings with bevelled edges to allow inserting and holding label
IPC: B65D25/20
Filed: 1982-02-02
Abstract: The plastic crate has one or more upright side walls provided with means for holding a replaceable information carrier such as a label. To this end, a flat part of the wall is provided with portions which are offset relative to that part whilst being integrally connected therewith via a bridge, each portion being offset such that it produces an opening in the flat part whose edges are bevelled (preferably at 30 deg.) The label is held in position behind a number of these offset portions between their bridges. The arrangement simplifies injection-moulding by eliminating the need for retractable core in the mould.
Patent NL-8302899-A (NL)
Title: Unit to stack mouldings - has supports alternately lifted to gripper transferring mouldings to carrier descending to stack ejector
IPC: B65G61/00
Filed: 1983-08-17
Abstract: Unit comprises supports (5a, 5b) which are alternately moved (cylinders 2a, 2b) between a lower receiving station and an upper delivery station (9). The delivery station is provided with transfer means (8) transverse cylinder (10) moving yoke (11) carrying gripper (12) which moves individual objects or groups laterally to a stacking station (behind drawing plane). The latter station comprises a carrier which is actuated (e.g. driven (17, 17a) a screw spindles (16) to move downwards as objects are stacked thereon. In the lowermost position of this carrier, an ejector plate is actuated (14a, to the R) to move the stack (19) laterally into a magazine (18).
Patent NL-8500014-A (NL)
Title: Helical spring drive for pipe bore cleaning - has spring guide mechanism with spring covered by protective hose and safety cap covering hand operated clamp
IPC: E03F9/00
Filed: 1985-01-04
Abstract: The pipe bore cleaning tool drive unit consists of a helical resilient spring drive. A hand operated clamp mechanism is covered with a protective safety cap mechanism (2). A sprinq guide mechanism (6) is positioned above the pipe line (7). The drive mechanism is positioned on roof (8) of a building. At the end of the resilient spring (5) fits a standard pipe cleaning tool (9). Between the safety cap and the spring guide mechanism, the spring is covered by a protective nose (10).
Patent NL-8501851-A (NL)
Title: Hinging door assembly using fire retardant material - contains material forming foam when heated under sealing component and profiled strip
IPC: E06B5/16
Filed: 1985-06-27
Abstract: The hinging door assembly comprises a profiled member in the form of a strip whose edges fit round the door edge. It contains a centrallengthwise chamber accommodating a sealing component protruding to the outside. Material forming foam when heated (20,21) is contained in the chamber below the sealing component (15a,15b) and in the space between the strip (6) and the end of the door (5).
Patent NL-8700649-A (NL)
Title: Speedometer and display for sailboard - has indicator mounted next to mast supplied by optical signal from LED via optical fibre
IPC: G01P5/07
Filed: 1987-03-19
Abstract: A conventional speed-through-the-water transducer (3) is mounted on the underside of the sailboard just forward of the centre-board (2) or keel-fin. The magnetic field signal generated by the transducer is detected and processed by an electronic unit (4) fixed to the upper surface of the board. The speed-related signal is converted to an optical signal by a LED and transmitted along an optical fibre (5) to the display unit (6) which is set into the sail (8) next to the mast (7) at shoulder level. The ends of the fibre are retained in the two units by rubber grips which also provide waterproofing.
Patent NL-8801285-A (NL)
Title: Doser for granular or powdery material - has motor and chain driven screw transporter in trough
IPC: G01F13/00
Filed: 1988-05-18
Abstract: The doser includes trough and motor driven helical screw transporter shaft (6) with a free-wheel coupling (7). One end of a coupling has a drive spindle (8) eccentric, and hinge connected. Other end of drive spindle is eccentric and hinge connected to drive wheel. The precise dosing arrangement for adding e.g. shell-grit to poultry food includes longitudinal trough with long side walls (1,2) and short side walls (3,4). The walls converge to a trough shaped bottom (5) in which the screw transporter (6) has its shaft ends bearing supported. One shaft end is connected to a freewheel coupling (7) which only transmits rotation in one direction to the screw transporter. A block has an adjustable eccentric position on a large chain wheel (10) which via chain (11) is driven by chain wheel (13).
Patent NL-8901198-A (NL)
IPC: B29C35/02
Filed: 1989-05-12
Abstract: The present invention relates to a process and a device for processing plastic waste, such as packaging foil of polyvinylchloride, polyethylene, polypropylene etc. into blocks by compressing it in a container. Said compressing of the plastic waste is achieved by means of a punch at a temperature of 120 - 180 DEG C and a pressure of 250 - 400 g/cm<2> and preferably at a temperature of 140 - 160 DEG C and a pressure of 260 - 290 g/cm<2>, followed by cooling with air. The cooling is carried out by the introduction of air in the container by means of a fan, which cooling takes place in 5 - 15 minutes, and preferably 8 - 10 minutes. The device of the invention is provided with a punch, whereas the inner surfaces of said container and/or said punch are provided with a coating in order to prevent said softened and compressed plastic waste from adhering to the walls. Said coating is preferably teflon, whereas the heating elements advantageously are electrical heating elements.
Patent NL-9100160-A (NL)
IPC: A61B5/07
Filed: 1991-01-30
Abstract: Injector for inserting objects such as transponders (4) into a living being. The injector is provided with positioning means for fixing the position of the insertion needle (9) relative to the living being. These positioning means comprise a pin (5) designed to rest with the shank thereof against a part of the living being, such as the head (1). The position of the insertion needle (9) can thereby be determined irrespective of differences occurring from one animal to another. <IMAGE>
Patent NL-9400486-A (NL)
Inventor: BERG KAREL VAN DEN
IPC: A01C17/00
Filed: 1994-03-28
Abstract: The invention relates to a method of using an implement for spreading a material under the control of a microprocessor (2). In the microprocessor (2), a desired amount of material to be spread per unit of time (7) is defined on the basis of values introduced into the microprocessor (2). Furthermore, before spreading the material, a pre-determined adjustment factor (9) attuned to the type of material to be spread is introduced into the microprocessor (2) and used to adapt the defined value of the desired amount of material per unit of time (7). The adapted value is used for the control of a metering device (1) through the intermediary of a standard characteristic attuned to the type of implement and/or algorithm, both stored in the microprocessor (2). During the spreading of material, on account of signals produced by a weight measuring unit (32) and which represent the decrease in weight of the material, the value related to, and adapted to the desired amount of material per unit of time (10) is corrected if it deviates from the measured amount of material spread per unit of time. <IMAGE>
Patent NL-9401117-A (NL)
Inventor: VEDDER RONALD FERDINAND
IPC: B26D7/01
Filed: 1994-07-04
Abstract: A device for cutting cheese, vegetables, sausage and like products, into slices, comprising a supporting surface (4) for the product to be cut and a knife (15), wherein adjacent an end edge of the supporting surface (4) a stop plate (18) for the product to be cut is arranged, extending transversely to the supporting surface (4), which stop plate (18) is coupled with an upwardly and downwardly movable knife holder (9) comprising an elongate knife (15), which knife holder (9) is situated near the upper edge of the stop plate (18), while the distance between the stop plate (18) and the knife (15) in a direction transverse to the stop plate (18) defines the thickness of the slices to be cut, and an electric motor (35) is provided for effecting the up and down movement of the knife holder (9). <MATH>
Patent OA-11027-A (OA)
Inventor: BOHN MANFRED
IPC: A61K31/4412
Filed: 1999-03-26
Abstract: Compounds of the formula (I) are suitable for producing pharmaceuticals for topical treatment of skin diseases caused by fungi or bacteria.
Patent PT-71125-A (PT)
IPC: C07C67/08
Filed: 1980-04-22
Abstract: Novel esters of the formula    <IMAGE>  I'   wherein R1 and R2 are individually selected from the group consisting of carbamoyl and R1' and R2', R1' and R2' are individually selected from the group consisting of hydrogen, halogen, alkyl of 1 to 6 carbon atoms, aryl of 6 to 10 carbon atoms, aralkyl of 7 to 13 carbon atoms, alkoxycarbonyl of 2 to 5 carbon atoms and -CN, R3 and R3' are individually selected from the group consisting of hydrogen, halogen, alkenyl of 2 to 3 carbon atoms and alkyl of 1 to 3 carbon atoms, Y' is selected from the group consisting of   <IMAGE>  +TR  <IMAGE>  R4' and R5' are individually selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, fluorine, bromine, chlorine and R4' and R5' together with the carbon atom to which they are attached form an optionally unsaturated hydrocarbon ring or heterocycle of 3 to 7 chain members and a heterocycle of the formula <IMAGE>  X is selected from the group consisting of sulfur and oxygen or R4' is cyano and R5' is phenyl or R4' is hydrogen and R5' is selected from the group consisting of cyano,   <IMAGE>  AlK is alkyl of 1 to 4 carbon atoms, the double bond in the 1- position of the vinyl side chain of formula (A) having (E) or (Z) configuration, R6 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and alkoxycarbonyl of 2 to 5 carbon atoms, the substituents on the cyclopropane ring of formula (A) and (C) have the cis or trans, racemic or optically active configuration, Z1 is alkyl of 1 to 4 carbon atoms, Z2, Z3 and Z4 are individually selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms and halogen and the asymetric carbon of formula (D) may be (S) or (R) configuration or a racemic mixture thereof and the carbon atom in the 1- position of the alcohol moiety may have (R), (S) or racemic configuration having insecticidal properties and their preparations.
Patent PT-72239-A (PT)
Title: A commutating device for driving a load
IPC: H02M7/505
Filed: 1980-12-19
Abstract: A commutating device for driving a load wherein a main supply voltage is converted into positive and negative buffer voltages which are converted into a control voltage for application to at least one load and wherein the frequency of the control voltage is controlled by means of commutation of the buffer voltages by means of a main thyristor and a commutation circuit including an auxiliary thyristor provided for each of the positive and negative buffer voltages. At least one additional commutation circuit including an auxiliary thyristor, and typically plural additional commutation circuits, are connected in parallel to the firstly noted commutation circuit with the conduction periods of the several commutation circuits being determined on the basis of the polarity and level of the current to the load.
Patent PT-72746-A (PT)
Title: Process for the transport of solid waste materials from power generation plants such as thermo-electric plants and heating installations
Inventor: KMIECIK JERZY
IPC: B65G/
Filed: 1981-03-26
Abstract: The method is for transporting power-industry slags and other solid waste material from power stations. The waste material is transported hydraulically in pipelines, the carrying agent being a heavy liq. which is a dense suspension of dry fly-ashes in water, pref. from one to six parts of water per one part of fly ash. The solid waste materials are added to this heavy liq. at a volumetric proportion of pref. up to 0.2 parts of slags and waste materials per one part of heavy liq. The mixt. of heavy liq. and slags is pumped through the pipelines.
Patent PT-81984-A (PT)
Title: Solder bearing terminal
IPC: H01R12/55
Filed: 1986-02-06
Abstract: A solderable lead is provided for connecting an electrically conductive element (such as a terminal clip, or a connector contact, or a semiconductor chip holder terminal) to a metallic area on a substrate or the like, the solderable lead having a discrete slug of solder mechanically engaged in a special way in a position to be melted for bonding the lead to the metallic area. In one form of solderable lead, a terminal clip portion adapted to be secured to a metallic area on a second substrate is also provided, the terminal clip portion having one or two additional discrete masses of solder mechanically engaged with the clip portion in position to be melted for bonding the clip to one or two metallic areas on the second substrate.