baber/WOPTO huggingface dataset:
Patent NL-7706373-A (NL)
Title: Transportable jack-up offshore well drilling rig - is moved to or from site on bow or stern of floating vessel
IPC: E02B17/02
Filed: 1977-06-10
Abstract: A transportable jack-up offshore well drilling rig has a relatively light openwork superstructure and three legs, and is transported to or from site in an upright position on a vessel which supports the rig at one end such that two of the legs extend down opposite sides of the vessel, while the third leg extends down in front of or behind the vessel. If the legs extend into the water during transport then the rig is typically arranged at the stern of the vessel but if the legs are clear of the water during the transport then the rig may be arranged at the bow of the vessel. The rig may be designed for tender assistance, in which case it carries only the drill works (derrick, draw works and rotary table) and a crane and all the other equipment (mud pumps, spare drill pipe, crew's quarters etc.) is carried on a floating tender moored to the rig, or it may be self-contained and require no permanent tender assistance. In either case, it may be converted to a well prod. platform after the drilling is completed. It is cheaper to construct than conventional rigs, towed to or from site, and is less likely to be damaged during installation or recovery.
Patent NL-7706463-A (NL)
IPC: C07C209/60
Filed: 1977-06-13
Abstract: A process for the telomerization of dienes with a telomerizing compound containing a mobile hydrogen atom is disclosed wherein the reaction between the diene and the telomerizing agent is effected in the presence of a catalytic system comprising a water-soluble sulfonated triaryl phosphine compound, preferably a water-soluble salt of a mono-, di-, or trisulfonated triphenyl phosphine and a transition metal compound, preferably palladium or a palladium-containing compound. Water is added either before or after the reaction is completed and the reaction products can easily be separated from the aqueous catalyst solution.
Patent NL-7812607-A (NL)
Title: Current collector with block-shaped brush in rectangular holder - has spring-loaded guide exerting pressure on brush to prevent uneven wear
IPC: H01R39/26
Filed: 1978-12-28
Abstract: The current collector is for a commutator motor and consists of a block-shaped carbon brush in a holder with a rectangular cross-section. The holder contains a flexible element which exerts a pressure on one side of the brush near the remote end of the contact surface. It is intended to avoid two separate contact surfaces resulting from wear. The spring-loaded element (5) moves within a restricted range in the holder (1). It is formed by the guide element for the brush. Where two or more brushes are fitted, the spring-loaded element consists of a plate between adjacent brushes extending to the brush surface in contact with the commutator and will wear evenly with the brushes.
Patent NL-8001530-A (NL)
Title: Signboard securing bracket to post - has annular parts permanently hinging together via locking ring
IPC: F16B5/06
Filed: 1980-03-14
Abstract: The bracket secures a flat item such as a signboard to a tubular supporting post, having an annular portion in two parts extending partly round the post, and with lugs at the ends engaging together to clamp it in place. One of the parts has feet in planes parallel to the axis of the annular portion and at right angles to the lugs, each with a flange at right angles to it and with a lengthwise groove accommodating the signboard edge. On one side, the two parts (4,5) hinge permanently together by means of a locking ring (10) fitted over them, and parallel to the bracket centre line. The diameter of the annular portion of the bracket is 1 - 4 mm. greater than that of the post (17). When not closed, the opposite lugs include an angle of 1 - 10 deg.
Patent NL-8002727-A (NL)
IPC: G01D5/22
Filed: 1980-05-12
Abstract: Contactless, electric control-handle comprising a field coil provided with a core for producing an alternating, electro-magnetic field, pairwise seriesconnected, inductive pick-ups angularly spaced apart and each having a core and actuating-rod subjected to a bias stress directed towards a neutral position and connected with a core of the field coil to affect the alternating, electro-magnetic field such that there is a lineair relation between the displacement of of the actuating rod and the output signal of the inductive pick-ups.
Patent NL-8105814-A (NL)
Title: Granulate particles with coloured layer of synthetic resin - compatible with heat hardening resin. esp. for flooring
IPC: C04B20/10
Filed: 1981-12-23
Abstract: Particles of granulate, partic. silicate granulate, have a coating layer, contg. a colouring matter, of a synthetic resin which is compatible with a heat-hardening resin. The granulate may be fine gravel. The coating layer is pref. of an acrylate and/or methacrylate polymer, pref. applied as a soln. with a ratio of synthetic resin:solvent of 1:100-100:10 (1:5-20), esp. 1:6-10. The amt. of synthetic resin is less than 1 (0.01-0.05), esp. 0.02-0.05 wt.% w.r.t. granulate. The amt. of solvent is pref. not more than 3 (not more than 1), esp. 0.1-0.5 wt.% w.r.t. granulate. The colouring matter, partic. gold, silver, grey or brown, is included in the synthetic resin soln. The coloured granulate is bonded by not more than 25 (not more than 15), esp. 5-15, and more esp. 7-12 wt.% of a heat-hardening resin, esp. an epoxy, polyester or polyurethane resin. Used esp. in floorings, partic. heavy duty floors. The granulate is cheap.
Patent NL-8300466-A (NL)
IPC: H03M1/74
Filed: 1983-02-08
Abstract: In a digital-to-analog converter (1) a plurality of binary weighted currents are generated, which currents must be in an accurate current ratio relative to each other. By means of a coupling network (15) which is controlled by a control circuit (17), a plurality of currents from said digital-to-analog converter (1) can be coupled to a precision current-mirror circuit (25) in accordance with a cyclic pattern, this allowing deviations in the ratios of the currents from the digital-to-analog converter (1) to be detected by detection means (80) which control correction means (18.2 to 18.16) by means of which the currents from the digital-to-analog converter (1) are corrected so as to reduce the detected deviations.
Patent NL-8303719-A (NL)
Title: Window-frame tubular profiled section - has central chamber without flanges and adjacent ones with flanges forming grooves
IPC: E06B3/46
Filed: 1983-10-28
Abstract: The tubular profiled section is for a sliding window frame having a closed chamber with flanges on one side forming grooves for panes to which strips are fixed. The chamber is divided into separate compartments, the central one of which (7) has no flanges, while one at least of those directly adjacent to it (8,8') has a flange (9,10) forming a groove. The compartments with flanges can be set back from the one without, the sidewalls of the latter forming grooves in conjunction with their flanges.
Patent NL-8401409-A (NL)
Title: Prefabricated horizontal foundation beam fixture - has clamp to retain beam to driven pile for concrete pouring
IPC: E02D27/12
Filed: 1984-05-03
Abstract: The horizontal foundation beam fixture for consolidating the beam on top of driven piles includes a support clamp, which leaves a space between the top of the driven pile, and the underside of the foundation beam. This space is used for pouring thermoplastics mortar. The foundation beam (1) is fixed to the pile (2), using the mortar, which, via passages in the beam (4), is applied to a groove (5). The groove is serrated for better cohesion. A clamp (6) is used to keep the space free between the top of the pile and the bottom of the beam. A slidable foil (22) is used for final beam positioning prior to mortar pouring.
Patent NL-8401550-A (NL)
Title: Antifreeze protector for car door or boot lock - has shank fitting keyhole with grip knob at outer end, protector is pref. polyamide 6 or PVC injection-moulding
IPC: E05B17/00
Filed: 1984-05-14
Abstract: The device is intended for protecting a door or boot lid lock of a motor vehicle against freezing up. It comprises a shank which fits in the keyhole and carries a knob (5) at its outer end. The shank or the entire device pref. consists of heat insulating material with some resilience, e.g. plastic such as polyamide six or PVC, and may be an injection-moulding. The knob may have a grooved and/or knurled perimeter, and a flat outer face carrying a logo or the like. The device may be transparent.
Patent NL-8600266-A (NL)
IPC: C08L63/00
Filed: 1986-02-04
Abstract: The invention relates to a resin composition, comprising a mixture of at least two resins A and B, wherein resin A the reaction product of an epoxidized fatty acid ester of a polyvalent alcohol with a carboxylic acid is and resin B a carboxylic acid-modified ester of a polyvalent alcohol is. The resin composition is obtainable by mixing the resins A and B during such a time and at such a temperature that a partial pre-reaction takes place. The resin composition can be applied in the production of surface-covering layers especially in the production of linoleum.
Patent NL-8600486-A (NL)
Title: Multistage absorption heat pump system - uses differential pressure motor to transfer medium from low to high pressure areas
IPC: F25B15/02
Filed: 1986-02-26
Abstract: The heat-pump system has three main stages. In the first, a burner is used to heat a medium, e.g. water and the heat is then transferred to the upper reservoir. The fluid in the upper reservoir flows into the lower reservoir, where environmental heat is absorbed. The heat is then exchanged with the flow of liquid in a conventional central heating radiator system. The system also has auxiliary exchangers to transfer heat between stages. No motor-driven pump is necessary to transfer fluid from the upper to the lower reservoirs. The fluid flow is controlled by a float-operated valve and a differential pressure motor. The differential is between the vapour in the upper reservoir and the pressure below the float valve.
Patent NL-8800032-A (NL)
Title: Integrated circuit speed controller for series motor - uses feedback to make speed independent of mechanical loading
IPC: H02P25/14
Filed: 1988-01-07
Abstract: The motor (1) is fed from the a.c. mains (2,4) via a triac (3). The triac trigger is fed by the sum of two signals from similar capacitor charge control circuits (9,17). One (17) of the circuits has a fixed time constant, while the time constant of the other is varied by the speed control rheostat (5) and feedback from a circuit (14) which detects the voltage across the motor (1). During the negative half cycle of the a.c. mains supply, the voltage across the motor is used to charge a capacitor (13) to supply the feedback signal via a preset variable resistor (15). At a predetermined time during the half-cycle, a thyristor (22) is fired to reset the feedback circuit.
Patent NL-9200252-A (NL)
Title: Foundation pile with widened root
IPC: E02D5/72
Filed: 1992-02-12
Abstract: A foundation pile 1 with a hollow pile shaft 2 is provided, in the vicinity of the bottom end, with a widened section 3 which extends laterally. The pile shaft is open at the bottom end. This widened section allows a large concrete foot 8 to be formed beneath the pile which has been driven into the ground, resulting in a foundation pile with a high load-bearing capacity. <IMAGE>
Patent OA-11190-A (OA)
Title: Drill string tool
Inventor: BEST BRUNO
IPC: E21B17/06
Filed: 1999-08-25
Abstract: A drill string tool (1) for use in a wellbore formed in an earth formation is provided. The tool comprises a first element (1A) connectable to an upper drill string part (3) a second element (5) connectable to a lower drill string part (7) bearing means (11) allowing rotation of the first element relative to the second element about the longitudinal axis (9) of the drill string, and rotation transfer means (15) for transferring rotation of the first element about the longitudinal axis to the second element. Furthermore there is provided control means (28) for selectively disengaging said rotation transfer means so as to selectively allow the first element to rotate relative to the second element by virtue of said bearing means.
Patent PT-64689-A (PT)
Title: Copper extn. from ores - by leaching with aq. ferric salts and extracting dissolved copper by ion exchange
IPC: C22B15/14
Filed: 1976-01-13
Abstract: Cu extn. from Cu-, Fe- and S-contg. ores, by leaching ores with an aq. soln. contg. Fe3+ salts and H2SO4, removing dissolved Cu from leach and oxidising the Fe2+ to Fe3+ ions in raffinate obtd. and recycling this soln. to ore-leaching step, is carried out by a process in which the dissolved Cu is removed from soln. by means of a liquid organic ion exchanger and raffinate is simultaneously set to Ph 1.3-2.1 (1.5-1.9). During oxidn. of Fe2+ to Fe3+ ions, Fe2+ content is kept no lower than 0.2 g/l at pH 1.7, 0.5 g/l at pH 1.5 and 8 g/l at pH 1 and pH of the leach flowing from ores is set to 2.5. Used for Cu extn. from Cu-contg. pyrites, sulphidic Cu ores or their concentrates.
Patent PT-77064-A (PT)
Inventor: ALLARD JOSEPH
IPC: E21C35/18
Filed: 1983-07-20
Abstract: This invention relates to a system for mounting tooth-carrier sectors on a cutter wheel or a milling-cutter drum (or coal-cutter drum) permitting the rapid mounting of the sectors, as well as a change in the direction of operation of the wheel or drum about its axis. The supports (2) attached to the wheel (1) by their base are delimited by two lateral surfaces (4) and by one upper surface (3), which rest on the yoke-shaped base of the tooth-carrier sectors (8). The support (2) has a shape which is symmetrical with respect to its axis (7), and its lateral surfaces (4) form with the perpendicular to the axis (7) an angle ( alpha ) which is less than 90 DEG  at their outer end. The sector (8) is closed on the side which rests against the front surface (4) during operation. The sector (8) is attached to its support, for example by means of an elastic dog (11).
Patent PT-79881-A (PT)
Title: Ballast system with stabilized frequency a.g.c.
IPC: H05B/
Filed: 1985-01-25
Abstract: A frequency control circuit (11) is coupled to a power source (12) and includes a transformer (43) and a frequency control capacitor (50) for establishing a constant oscillation signal at a predetermined frequency. A switching network (13) oscillation signal. Induction circuitry (15) is coupled to the switching network (13) and the frequency control circuit (11) and includes an inverter transformer (78) as well as coupling capacitors (86 and 88) for generating a voltage across the gas discharge tubes (40 and 40'). Automatic gain control circuitry (17) is included in inverter transformer (78) and is made up of a pair of secondary windings (80 and 81) wound so as to provide a negative feedback voltage to each of the transistors (70 and 70') of the switching network (13). The inverter transformer (78) has a pair of primary windings (82 and 84) which operate alternately and are coupled to the primary windings (45) of frequency control transformer (43 ) to provide a repetitive cycle.
Patent PT-80614-A (PT)
IPC: D03D37/00
Filed: 1985-06-07
Abstract: In the circular reed of the circular loom, a plurality of weaving shuttles circulate. Each weaving shuttle has rollers arranged in pairs at its top edge and its bottom edge. The rollers operate together with the corresponding gliding surfaces on the upper shuttle race or lower shuttle race of the circular reed, and each shuttle is supported to circulate on shuttle guide rods by the centrifugal force conveyed by the support elements. The shuttle guide rods of the circular reed define between them a slit in the region of the upper and the lower shuttle races, which slit receives upon opening of the travelling shed one of the warp threads of the upper shed or the lower shed, and form there an upper and a lower rollway, taking up the centrifugal force of the circulating weaving shuttle for the respective pairs of support rollers on the shuttle. The slit widens outside the rollways towards the reed-horizontal median plane to a warp-yarn crossing space. These measures permit a rapid increase of the rotational speed of the weaving shuttle and the utilization of larger warp yarn packages.
Patent PT-81301-A (PT)
Inventor: JOUBERT DANIEL
IPC: C01B25/41
Filed: 1985-10-14
Abstract: Na tripolyphosphate compositions very rapidly hexahydrated, e.g., in water, and well suited for detergency applications, are comprised of a mass of sodium tripolyphosphate particulates prehydrated with a plurality of hexahydrated sodium tripolyphosphate crystals homogeneously distributed therethrough, (i) said particulates displaying a ratio of phase I crystalline form content to the total content of the phase I plus phase II crystalline forms of at least 50%, (ii) a homogeneous distribution of phase I crystalline form throughout both said particulates and said mass, (iii) a particle size distribution such that the average Rosen-Rambler-Bennett particle diameter ranges from 130 to 250 mu , with the maximum amount by weight of particles larger than 630 mu  in diameter being about 5% and the maximum amount by weight of particles smaller than 25 mu  in diameter being about 20%, (iv) a content in water ranging from about 0.4 to 4% by weight, said water content essentially consisting of the bound water constituting said hexahydrated sodium tripolyphosphate crystals, and (v) with each crystal population of particle sizes being homogeneously distributed throughout said mass.
Patent PT-82590-A (PT)
Title: Process for the preparation of 2-carboxypyrazines 4-oxide
IPC: C07D241/24
Filed: 1986-05-14
Abstract: A process for the preparation of 2-carboxypyrazine 4-oxides having the formula (I)wherein R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub>, which may be the same or different, represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, by oxidation of the corresponding 2-carboxypyrazines. The 2-carboxypyrazines are reacted under stirring with an aqueous solution of H<sub>2</sub>O<sub>2</sub>, at a pH ranging between 0.5 and 5, in the presence of a catalyst selected from the group consisting of tungstic acid, a homopolytungstic acid, a heteropolytungstic acid, molybdic acid, a homopolymolybdic acid, a heteropolymolybdic acid, and an alkali metal salt thereof.
Patent PT-84173-A (PT)
IPC: A61J3/00
Filed: 1987-01-22
Abstract: Apparatus for coating pharmaceutical tablets in which a drum having a perforated periphery is provided with an adjustable insert which divides the drum into an inactive zone and a coating zone, thus permitting a relatively small quantity of tablets to be coated under conditions equivalent to those used for coating a bed of particles in a completely loaded drum.
Patent PT-91830-A (PT)
Inventor: PERCEBOIS ALAIN
IPC: E02D29/14
Filed: 1989-09-27
Abstract: Locked manhole cover of the type comprising a frame 1 equipped with an inner radial flange 14 and a buffer 3 resting on the said flange by means of an elastic mounting 2, having a general C-shaped cross-section, which fits over the said flange 14. The circular, closed and continuous mounting has in its lower part at least one inclination 19 which comes to face fastening strips 26 of which the buffer 3 is equipped. Application to the locking of manhole covers. <IMAGE>
Patent PT-92083-A (PT)
IPC: D21J1/00
Filed: 1989-10-24
Abstract: In the process disclosed, pulp mixed in a dosing device is introduced into the pre-shaping device (1) on an endless shaping web (3), for example a papermaking machine wire web, which serves successively for support and drainage of the pulp during pressing and pre-shaping and as a means for handling the pre-shaped board to remove it from the pre-shaping device (1). The pre-shaped board is then introduced into a tunnel furnace (5) with double-sided percussion in which the hot air at a temperature of 185 to 200 DEG C is blown forcibly and very uniformly onto the two faces of the board to be dried.
Patent PT-92658-A (PT)
Inventor: WEBER KARL-HEINZ
IPC: C07H19/04
Filed: 1989-12-21
Abstract: Xanthines of formula (I) and their optical isomers and acid-addn. salts are new: R1 = 1-6C alkyl, 3-4C alkenyl or 3-4C alkynyl; R2 = 1-6C alkyl, 3-4C alkenyl, 3-4C alkynyl or opt. substd. benzyl; R3 = (a) C-bonded satd. or unsatd. 5- to 7-membered heterocyclyl contg. one or more O and/or S atoms, opt. substd. by 1-6C alkyl, oxo, CHO, CH2OR4, CH2OR7, COOR4 or CONR5R6; where furyl and thienyl gps. are opt. also substd. and tetrahydrofuryl gps. are opt. also substd; (b) 4-8C cycloalkenyl opt. substd. by 2-4C alkenyl; (c) a 4-8C cycloalkanone or cycloalkanol gp. opt. alpha-substd. by 2-6C alkenyl, 2-6C alkynyl, opt. substd. benzyl, CH2OR4, CH2COOR7 or CH2CH2CN; (d) 3-8C cycloalkyl opt. substd. by 1-6C alkyl, =CH2, =NNHAr, =NNHR, =NOH, OCONHAr, OCONHR, OR4, OR7, (CH2)xCOOR4, (CH2)xNR4R4, (CH2)xCONR5R6, (CH2)xOR4, (CH2)xOR7 or =CHA; (e) 3-8C cycloalkyl gem-substd. by OH and 1-6C alkyl, vinyl, allyl or opt. substd. phenyl or (1-4C alkyl)phenyl; (f) 3-8C cycloalkyl gem-substd. by ORa and ORb, or (g) 3,4-methylenedioxyphenyl, 3,4-ethylenedioxyphenyl, 2-fluorenyl, 9-fluorenyl or a bicyclic gp., e.g. of formula (i)-(iii). Ar = opt. substd. aryl; R = 1-6C alkyl, x = 0-4; A = COOR4, CN, CONR5,R6, CH=CHCOOR4, CH=CHCONR5R6, CH2OR4 or CH2OR7; Ra and Rb = 1-4C alkyl, or Ra+Rb = 2-3C alkylene opt. substd. by 1 or 2 of 1-5C alkyl, 2-6C alkoxycarbonyl and 1-5C hydroxyalkyl; R4 = H, 1-13C alkyl, 3-13C alkenyl, propargyl, trityl or opt. substd. 3-6C cycloalkyl or benzyl; R5 = H, 1-6C alkyl or opt. substd. 3-6C cycloalkyl; R6 = H, 1-6C alkyl, opt. substd. benzyl, (CH2)nNR5R5, ((CH2)nO(CH2)mO)k(CH2)nNR5R5, (CH2)nQ(CH2)nNR5R5, or C-bonded piperidinyl opt. substd. ; or NR5R6 is a 5- to 7-membered ring opt. contg. another heteroatom and opt. substd. ; n = 2-8; m = 2-6; k = 0 or 1; Q = piperazine-1,4-diyl opt. substd. ; R7 = acyl derived from a natural amino acid, 2-14C alkanoyl, methyloxyacetyl, camphanoyl, abietoyl, 4-aminobutyryl, opt. substd. benzoyl or COB1; B1 = opt. substd.
Patent PT-94821-A (PT)
Inventor: BILZ GEORG
IPC: B22D18/08
Filed: 1990-07-26
Abstract: The invention relates to a device and a process for controlling and regulating the mould filling rate and casting pressure of a low-pressure chill casting machine, preferably for casting aluminium. The furnace chamber containing the molten casting material can be hermetically sealed and communicates with the mould via a rising pipe connected to the mould. Gas pressure built up in a pressurized gasline forces the casting material from the furnace chamber into the mould. A contact probe (13) can be inserted to varying depths in a probe chamber (10) which extends downward into the furnace chamber (7) and which is open at its lower end (8) to admit the casting material. When contact is made, the contact probe sends a signal to a device (37) for controlling the flow of pressurized gas to the furnace chamber (7). When contact is made, the contact probe can be moved in the probe chamber (10) to a height which is not reached by the molten casting material during the casting process. In addition, a measurement device (36) for measuring the gas pressure in the furnace chamber (7) transmits the measured pressure in the form of a signal to the device (37) for controlling the flow of pressurized gas.
Patent PT-95858-A (PT)
Inventor: BARCLAY BRIAN L
IPC: A61K9/00
Filed: 1990-11-12
Abstract: An osmotic device is disclosed comprising an exterior coat comprising an estrogenic and a progestogenic steroid that are delivered immediately as a contraceptive pair for fertility regulation in a female, and a compartment comprising an estrogenic steroid that is delivered at a controlled rate over a prolonged period of time for fertility regulation in a female.