baber/WOPTO huggingface dataset:
Patent SE-7602409-L (SE)
Inventor: PRESCHER G
IPC: B01J23/00
Filed: 1976-02-25
Abstract: Pure racemic acid (dl-tartaric acid) and meso tartaric acid are produced by reaction of an alkali maleate with aqueous hydrogen peroxide in the presence of a catalyst which is an alkali molybdate or a mixture of an alkali molybdate and alkali tungstate in a process wherein the molar ratio of hydrogen peroxide to maleic acid is greater than 1:1 and the alkali salt of cis-epoxysuccinic acid formed together with the catalyst in a given case after destroying the excess hydrogen peroxide and other peroxygen compounds, are converted to free cis-epoxysuccinic acid and free molybdic acid or mixture of free molybdic acid and free tungstic acid by leading them over a strongly acidic cation exchanger, whereupon the hydrolysis of the free cis-epoxysuccinic acid to racemic acid and meso-tartaric acid can take place either in the presence of or the absence of the free molybdic acid or mixture of free molybdic acid and free tungstic acid, whereby the catalyst in the case of catalyst free hydrolysis before, and in the case of catalyst containing hydrolysis after this hydrolysis is removed with an anion exchanger and the racemic acid is then in known manner crystallized out of the catalyst free hydrolysis mixture by lowering the temperature in a given case with evaporation of water, whereupon the meso-tartaric acid remains in the mother liquor, and there is recovered from the mother liquor either by crystallization or by evaporation to dryness, in a given case in admixture with racemic acid, unreacted cis-epoxysuccinic acid and maleic acid, while the anion exchanger laden with the molybdic acid or mixture of molybdic acid and tungstic acid is regenerated in known manner with dilute aqueous alkali and, in a given case, the resulting solution of alkali molybdate or mixture of alkali molybdate and alkali tungstate, eventually after treatment with activated carbon is returned directly into the epoxidation step.
Patent SE-7607406-L (SE)
Inventor: MAILLEFER C
IPC: B29C48/64
Filed: 1976-06-29
Abstract: This invention is a screw-type extruder for plastics comprising a screw in a cylinder providing a feed zone, a plasticizing zone and a homogenization zone. The screw threads in the plasticizing zone are provided with marginal passageways so small as to provide heat exchange between the plastic and the screw, the latter being heated by friction.
Patent SE-7612464-L (SE)
Inventor: GRASSHOFF H D
IPC: C10N40/00
Filed: 1976-11-09
Abstract: A biodegradable lubricating grease composition is provided comprising an emulsion of vegetable-derived gel, water and a lubricant from the class of natural oils and fats.
Patent SE-7709092-L (SE)
Inventor: COATES D
IPC: C07C45/46
Filed: 1977-08-11
Abstract: Novel liquid crystal materials are provided having the general formula   <IMAGE>   where A is a 4-alkylphenyl group and B is a 2-(6-alkyl)naphthyl group, or vice versa, wherein the alkyl groups in A and B may be the same or different. These materials have a dielectric anisotropy sign change at moderate frequencies, i.e., in the range 1kHz to 50kHz and are thus useful for twisted nematic device cells of the frequency switching type.
Patent SE-7714377-L (SE)
Inventor: KRONERT C
IPC: F16D3/76
Filed: 1977-12-16
Abstract: A torsionally elastic shock and vibration absorbing coupling, comprises first and second coupling parts which are adapted to be connected to the respective parts which are to be coupled together and which have coupling portions with openings therethrough. An annular resiliently deformable pressure cushion is disposed between the coupling parts with the openings and is connected to each part such as by vulcanizing. At least one substantially non-stretchable rope which passes through the receiving openings of the respective coupling parts overlie the cushion, and extend circumferentially along portions of the respective parts and, between the parts, to interconnect them. The rope is directed preferably in a wave configuration with portions extending circumferentially and portions extending radially with respect to the respective coupling parts, and they advantageously include wave crests which extend or project outwardly from the cushion so that they form projections which provide for increased air circulation during rotation of the parts.
Patent SE-7806922-L (SE)
Inventor: LUNDQVIST I
IPC: G01N15/02
Filed: 1978-06-15
Abstract: Methods and apparatus for determining the particle size distribution with respect to selected fraction classes in the direction of flow of a medium are provided in accordance with the teachings of the present invention. A plurality of measuring configurations are employed to pass light through the medium to be measured and to detect the light transmitted therethrough. Each measuring configuration exhibits different resolution with respect to one another and particle size distribution for selected fraction classes is determined as a function of measuring signals derived by each of the plurality of measuring configurations from the transmitted light detected during a run of the medium and sensitivity coefficients of the measuring signals. The sensitivity coefficients employed are dependent upon the associated measuring configuration and fraction class. Thus rather than counting particles per se a measure of the concentration in each fraction class is obtained.
Patent SE-7906006-L (SE)
Inventor: RIBBERT HANS
IPC: E01F7/04
Filed: 1979-07-10
Abstract: The leg portions of metallic yokes which are substantially bent to U-shape comprise free ends adapted to be anchored in the ground, the said leg portions being substantially arranged one behind the other along the line of slope of a hill flank. Mutually adjacent yoke members of the device are interconnected by means of a wire cable which is preferably attached to the curved bights of the yoke members. Additional connecting means disposed between individual, mutually spaced yoke members form intercepting nets bearing against that side of said leg portions which faces the hill flank, said nets being connected to said yoke members, and serving to intercept falling rocks or snow. An important feature of such devices which is of particular importance where such devices are employed in mountainous terrain, resides in the fact that they can be easily transported and can be anchored in the ground in a simple manner. Another advantage of said devices resides in the fact that they are adapted to be deformed elastically upon being impacted by falling rocks or avalanches so as to dissipate the kinetic energy of such material without themselves being destroyed.
Patent SE-7908641-L (SE)
Inventor: DURAND R
IPC: G03B9/28
Filed: 1979-10-18
Abstract: The photographic shutter has two curtains cut out of a sheet of synthetic material. The flexible return of the curtain is ensured by two drum springs engaging with pinions carried by the end of the rollers. The setting of the shutters may be effected by wheels which may be completely disconnected from the setting mechanism. Release may be effected electrically by electro-magnets.
Patent SE-8007882-L (SE)
Inventor: EDSTROM JOHN OLOF
IPC: C21B13/14
Filed: 1980-11-10
Abstract: PCT No. PCT/SE81/00321 Sec. 371 Date Jul. 9, 1982 Sec. 102(e) Date Jul. 9, 1982 PCT Filed Nov. 3, 1981 PCT Pub. No. WO82/01724 PCT Pub. Date May 27, 1982.A method for producing fine-grain iron-containing metal oxide material, the method comprising a first reduction stage wherein the oxide material is at least partially reduced in a fluidized state at a temperature of approximately 1025 DEG -1275 DEG K. by a reducing gas which is carbon monoxide or carbon monoxide mixed with hydrogen, followed by a smelting and final reduction stage to form a metal melt, the reducing gas used for the first reduction stage obtained from the smelting and final reduction stage. Prior to the first reduction stage, relatively large cakes or shaped pieces are formed from the fine-grain metal-oxide material in the presence of moisture and a hydraulic binder and the cakes or pieces caused to harden. The hardened oxide material is disintegrated and classified to form the starting material for the first reduction stage and is given a particle size distribution such that the material forms a fluidized bed which is substantially stationary at the considerable gas velocity required to carrying out the reduction process without bogging at the temperature selected for the first reduction stage.
Patent SE-8007934-L (SE)
Inventor: BENSON G E V
IPC: G01F11/08
Filed: 1980-11-12
Abstract: The device comprises a through-flow passageway (1) in which is arranged a valve chamber (17). A lower valve seat (4) and an upper valve seat (14) delimit said valve chamber (17). The valve seats (4, 14) are parts of two valve portions and may be closed by a lower and an upper valve body (12, 11). A pressurizing bulb (16) is arranged to generate a vacuum or excess pressure in the valve chamber (17). The device operates in the following manner. When the pressurizing bulb (16) is compressed, soap solution is forced through the lower valve seat (4) while the upper valve seat (14) remains closed. When the pressure on the bulb (16) is released, the bulb resumes its original shape and the vacuum thus created draws in fluid through the upper valve seat while the lower seat remains closed.
Patent SE-8103690-L (SE)
Inventor: WENSMAN GUNNAR
IPC: A01K61/02
Filed: 1981-06-12
Abstract: PCT No. PCT/SE82/00207 Sec. 371 Date Jan. 27, 1983 Sec. 102(e) Date Jan. 27, 1983 PCT Filed Jun. 11, 1982 PCT Pub. No. WO82/04379 PCT Pub. Date Dec. 23, 1982.A method and device for feeding animals, particularly fish, comprise supply of food into a conduit (3) by a food supply member (2). The food is transported in the conduit to feed locations (5) by a fluid flow. The food supply member comprises a rotor having cells adapted to be successively filled and brought into communication with the conduit (3) to be successively evacuated by the flow of fluid maintained in the conduit on rotation of the rotor.
Patent SE-8106076-L (SE)
Inventor: SIMME STURE
IPC: B62D33/02
Filed: 1981-10-14
Abstract: A detachable stanchion on a lorry platform or the like has a locking mechanism for detachable connection with a flap (3) which can be raised towards the stanchion (1). Such a locking mechanism comprises a hinge profile (21) and a locking profile (23). At the bottom the hinge profile is pivotally attached to a lower supporting shaft (17). To enable the stanchion (1) to be detachably fastened to a lorry platform (2) in a simple, appropriate and easily-manipulated manner, the said supporting shafts (17) of two adjacent locking mechanisms are arranged on a link rod (15) which is connected with members (12-14) for engagement with a platform attachment (7-9). If the locking mechanisms are actuated beyond an opening position the link rod is raised and releases the said members from the platform attachment.
Patent SE-8200005-L (SE)
Inventor: ERIKSSON I
IPC: F02D23/00
Filed: 1982-01-04
Abstract: Internal combustion engines of the type having a fuel injection system 1 with a means 2 for regulating the fuel supply, which is subject to action from a pressure sensor device communicating with the intake pipe 3 of the engine downstream of the throttle 4 in such a way that increasing pressure in the intake pipe due to increased throttle opening initiates manoeuvring of the regulating means for increasing the fuel supply and vice versa, may be provided with supercharging by connecting the intake pipe upstream of the throttle to the outlet of a compressor and mounting a pipe 20 serving to enable actuating of the regulating means for decreasing the fuel supply with compressed air from the high pressure side of the compressor. <IMAGE>
Patent SE-8200624-L (SE)
Inventor: AMNEUS KRISTER
IPC: E04B1/82
Filed: 1982-02-03
Abstract: A sound-damping acoustic device comprises a sheet-material member (14) which can be set, by sound, into oscillatory motion transversely to its geometrical extension, and which forms at least a part of the defining walls of a chamber (16). The member (14) is substantially free-swinging, and the chamber (16) is at least substantially acoustically closed. The device also comprises means for damping displacement of the member transversely to said geometrical extension in proportion to changes in the rate of displacement.
Patent SE-8202651-L (SE)
Inventor: MCDONALD DOUGLAS ARTHUR
IPC: B25B19/00
Filed: 1982-04-28
Abstract: A transversely extending weighted (7) striker bar (4) is mounted for rotation about the axis (3) of a shaft (2), at least one anvil member (6) connected with the shaft (2) being spaced from the central axis (3) in the path of the striker bar (4). <IMAGE>
Patent SE-8203716-L (SE)
Inventor: RUMPP G
IPC: B23Q3/12
Filed: 1982-06-15
Abstract: A hammer drill comprising a housing 1 and a tool holder 10 which is axially displaceable relative to the housing 1. During rotary drilling the tool holder 10 is supported in the axial direction against the housing 1. During percussion drilling radial play exists between the tool holder 10 and a percussion hammer 7 guided in the housing 1 as well as between the percussion hammer 7 and the housing 1. To cancel this play and provide for rotary drilling the tool holder 10 has, at its rearward end, a centering adjoint-piece 11a which when engaged with a centering bore 1e makes possible a direct centering of the tool holder 10 on the housing 1. <IMAGE>
Patent SE-8206138-L (SE)
Inventor: NYBERG G
IPC: E04C2/38
Filed: 1982-10-28
Abstract: The plate-shaped component comprises two surface sheets (3) forming its flat sides. The sheets are releasably retained by frames (1,2), the cross-section of which has an angle profile, with one angle located against the surface sheet flat side, and the other against the component edge side. - The surface sheets and the frames are held fixed by distance pieces, formed by bodies held in position by filler bodies between the sheets.(1)
Patent SE-8301861-L (SE)
Inventor: WESTBERG E
Filed: 1983-04-05
Abstract: The box comprises an upright base frame which carries electrical components and appts. and a straight block-like outer casing with a vertical front surface comprising several parts fixed to the base frame and to each other by screw unions. The base frame comprises a part of the casing and extends in a plane parallel to the front surface. It is fixed in its upper and lower parts by anchoring plinths. One of these plinths forms an L or T-shaped structure with the base frame. The box also comprises a distribution section attached to the base frame, an appts. section, and between these two sections an intermediary section for ventilation and pressure discharge. The different sections have separate casing parts with joints between them lying in a dividing plane parallel to the casing front surface.
Patent SE-8302816-L (SE)
Inventor: BERGDAHL KNUT
IPC: F24F13/06
Filed: 1983-05-19
Abstract: An apparatus for the supply of air to a room includes a body (5) fitted with channels designed for the passage of incoming air and outgoing air, and a container (38) for the body, which is designed to hold the body in a position relative to an input duct so that the incoming air from this duct can flow into the first (6) of the channels, and from this channel out into the room, while the incoming flow induces a flow of outgoing air in the second (7) of these channels. The body (5) is movable within a cavity (20) in the container and has its first channel's outlets (8) into the room working in conjunction with the cavity part of the container, so that the body's movement in and out of the container causes the closing or opening of the outlets (8).<IMAGE>
Patent SE-8303696-L (SE)
Inventor: BAXENDALE L
IPC: A61K31/19
Filed: 1983-06-28
Abstract: The present invention provides a pharmaceutical composition in the form of a water-containing cream which contains at least one glycyrrhetinic acid derivative (as hereinbefore defined), together with at least one non-toxic, water-soluble salt of zinc, calcium and/or magnesium as stabilizer.
Patent SE-8303788-L (SE)
Inventor: KARLSSON G
IPC: H01M4/90
Filed: 1983-07-01
Abstract: Electrolytic electrode which has a hydrogen overvoltage-reducing coating essentially consisting of an alloy from iron, cobalt and/or nickel with tin, the percentage of tin of the alloy being between 0.01 and 10 per cent by weight. The electrode can advantageously be manufactured by accomplishing said coating galvanically or by a thermal spraying method. The electrode is especially well suited for use as cathode for hydrogen evolution in chlorate, chlorine-alkali or water electrolysis or as an anode in an hydrogen-oxygen or hydrogen-air fuel cell.
Patent SE-8303964-L (SE)
Inventor: EKEDAHL E
IPC: G08B3/06
Filed: 1983-07-13
Abstract: A control unit (32) governs compressed air supply to a siren, and apart from a valve (41) which alternately taps high pressure containers, has a reduction valve (44), together with a magnet valve (47), controlled by external signals, for transmission of air impulses at reduced pressure to the siren. In the control unit is a pressure monitor (46a) which provides signals if the air pressure is too low. The high pressure container unit and the control are built into a lockable box with an inspection hatch for connection of signal lines (33) coming from outside. A two-way valve (48) is inserted downstream of the magnet valve in the low pressure air line (46), which when the siren is disconnected may conduct compressed air impulses to a noise damper (49). The control signals are transmitted via telephone lines (33), and a control plinth (35) which locks the box contains telephone jacks (36).
Patent SE-8304543-L (SE)
Inventor: MATTSSON L B E
IPC: F16M11/26
Filed: 1983-08-22
Abstract: A telescopic supporting post (10) comprises two mutually displaceable telescope members (11, 12), each comprising an inner tubular portion (15, 17) of small diameter and an outer tubular portion (16, 18) of large diameter. Said inner portions (15, 17) are provided with cooperating bearing surfaces (15a, 17a) by which the two telescope members (11, 12) are mounted for axial displacement relatively to each other. Said outer portions (16, 18) are provided with cooperating interengagement means (19, 21) for holding the two telescope members (11, 12) against mutual rotation. In order to avoid the need for a separate turntable when it is desired to permit rotary movement of a chair supported by the post (10), said interengagement means (19, 21) are arranged for releasable engagement with each other, whereby the two telescope members may be rotated relatively to each other, utilizing said bearing surfaces also as rotary bearing surfaces, when said interengagement means are out of engagement with each other.
Patent SE-8306852-L (SE)
Inventor: PALZ H
IPC: C21B9/14
Filed: 1983-12-12
Abstract: Combustion air and fuel gas used for firing blast furnace stoves is preheated by utilizing the heat of waste gases resulting from such firing. The combustion air and fuel gas are passed through respective heat exchangers in heat exchange relationship with the waste gases, thereby preheating the combustion air and fuel gas. The combustion air, after passage thereof through the respective heat exchanger, is further preheated by an externally fired recuperator. The flue gases from the externally fired recuperator are fed to the waste gases before preheating of the combustion air by such waste gases. The external firing of the recuperator is controlled as a function of the final preheated temperature of the thus twice preheated combustion air.
Patent SE-8401776-L (SE)
Inventor: TUUTTI K
IPC: C04B7/26
Filed: 1984-03-30
Abstract: Fill and ground binding agent comprises (by wt.%) cement 1-30 pref. 1-15, more pref. 7-10; and waste (I) 99-70, (I) being fly ash or prods. of de-sulphurisation of granulated blast-furnace slag, mixed with water and/or air, pref. fly ash 99-85 pref. 93-90. The compsn. pref. contains water to a water binder index (water/(cement + fly ash) of 0.20-0.60 pref. 0.38.
Patent SE-8404303-L (SE)
Inventor: MOON P A K
IPC: H03J3/14
Filed: 1984-08-29
Abstract: A signal strength detector comprises first, second and third transistors of the same conductivity type. The emitter electrodes of each transistor are connected together and coupled with one of a pair of dc supply lines. The collector electrodes of the first and second transistors are each coupled with the other of the pair of dc supply lines. The base electrode of the first and second transistors are each coupled via a resistor to the base electrode of the third transistor. The collector electrode of the third transistor is effective to provide a source of output current which is representative of a differential signal level between the base electrodes of the first and second transistors.
Patent SE-8500971-L (SE)
Inventor: MILLER S A
IPC: B22F9/08
Filed: 1985-02-27
Abstract: In atomizing a body of molten material having elevated melting point by directing the molten body as a stream into an atomization zone and directing a stream of atomizing gas into said stream to atomize and disperse it, the orifice from which the gas is delivered is positioned closely proximate the surface of the stream to be atomized, e.g. less than 0.45 inches way. A large percentage of fine particles is thereby produced. In an embodiment gas at high pressure enters plenum chamber 20 through conduit 30, emerges from annular gas orifice 22 to impinge on the stream of molten metal descending through tube 12 and emerging from the end 16. <IMAGE>
Patent SE-8601047-L (SE)
Inventor: WAHLBERG KARL ERIK
IPC: B27B21/00
Filed: 1986-03-06
Abstract: The equipment comprises a tip frame (10) provided with several vertical curved formations (12) arranged spaced along its length. The timber can be bundled from above or the sides between the formations (12), and cut. The frame (10) is pivotable around a longitudinally running axis (14) so that the timber, after cutting, is tipped on to a platform or similar.
Patent SE-8601756-L (SE)
Inventor: LARSSON P G
IPC: B21J13/14
Filed: 1986-04-17
Abstract: PCT No. PCT/SE87/00048 Sec. 371 Date Sep. 28, 1988 Sec. 102(e) Date Sep. 28, 1988 PCT Filed Feb. 3, 1987 PCT Pub. No. WO87/06165 PCT Pub. Date Oct. 22, 1987.Arrangement for the ejection of a pressed component from a press tool. The arrangement consists of a number of ejection pins distributed over the press surface tool. Each of the ejection pins is so arranged as to lie during the pressing operation with its tip no higher than on a level with the aforementioned press surface, and, in conjunction with the opening of the tool after a pressing operation has been completed, as to eject the component from the tool with its tip. A characteristic feature of the invention is that each ejection pin is operatively connected via a pistion rod to a hydraulic piston. The piston is capable of axial displacement in a hydraulic cylinder, which is filled with an incompressible fluid in space between the piston and an end wall of the cylinder. The space communicates via a duct with a drive unit for the ejection pin.
Patent SE-8703613-L (SE)
Inventor: NILSON C-G
IPC: F01B17/00
Filed: 1987-09-18
Abstract: A piston engine for converting energy of a medium supplied under pressure into gaseous or vapour form for mechanical work, the piston of which has a cylindrical casing which is somewhat longer than the length of stroke of the arrangement and a wall orientated at right angles to the casing, as a result of which a closed space is formed in the cylinder, which piston has a duct arranged in such a manner that one of its ends communicates with the space delimited by the piston in the cylinder and its other end has its opening in the cylindrical casing of the piston, which opening is positioned in such a manner that it communicates, when the piston is in its furthest inserted position in the cylinder, with an opening arranged in the cylinder wall for supply of pressure medium. <IMAGE>