baber/WOPTO huggingface dataset:
Patent SE-8303520-L (SE)
Inventor: NIEUWENDIJK J A M
IPC: H04R9/04
Filed: 1983-06-20
Abstract: An electroacoustic transducer comprises a diaphragm (1), a magnet system (4) and a voice coil (3) arranged on a voice-coil former (2) in an air gap (5) of the magnet system. The movement is transmitted between the voice-coil former and the diaphragm via a lever mechanism comprising n lever devices (6) arranged at an angle relative to each other (n>/=2). A lever device (6) comprises a lever arm (9) coupled to a fulcrum (11) at the location of a first position (10) on the lever arm, to the voice-coil former (2) at the location of a second position (13), and to the diaphragm (1) at the location of a third position (14). The lever mechanism multiplies the excursion of the voice-coil former by a factor greater than unity. This results in an electroacoustic transducer with a long stroke which provides large excursions of the diaphragm. The lever mechanism may also be employed in other types of transducer, such as piezo-ceramic transducers. A compliant element (25) formed as a zigzag bellows secured both to the outer circumference of the diaphragm and to the chassis (26) to permit the large excursion of the diaphragm, is constructed so as to reduce the acoustic contribution of the compliant element to the transducer output signal, which contribution forms a distortion component in the output signal.
Patent SE-8303799-L (SE)
Inventor: ROTHFJELL E
IPC: G07C9/35
Filed: 1983-07-01
Abstract: The invention relates to a method of signature verification and is characterized in that an electric pulse train individual for each person in question is generated in that said persion is allowed to move a so-called reading pencil over a patterned background comprising dark and light portions, and that such a pulse train generated at a certain occasion is compared by means of a computer or the like to pulse trains generated earlier by said person and stored in said computer or the like.According to a preferred embodiment, said patterned background is a line code (1) consisting of parallel dark lines (11) separated by lighter lines or areas (10).
Patent SE-8305536-L (SE)
Inventor: BINDEL R
IPC: C09K3/10
Filed: 1983-10-07
Abstract: A cylinder head gasket having at least one plate of soft material and at least one combustion chamber opening, said soft material including predominantly inorganic fibers and/or filling materials connected by binding means and including free OH groups, the soft material is mixed with a first impregnating material comprising a polysiloxane containing reactive hydrogen groups for reaction with the free OH groups of the fibers or filling materials and a second impregnating material which consists of a second polysiloxane of a higher degree of polymerization than the first polysiloxane and which polymerizes with itself as well as with the reactive hydrogen groups of the first polysiloxane, said second polysiloxane forming a stable siloxane structure having more branches than the first polysiloxane.
Patent SE-8402311-L (SE)
Inventor: ISAACS R M
IPC: E02D31/14
Filed: 1984-04-27
Abstract: A chilled-gas carrying pipeline installation in soil or rock zones with different heave properties is disclosed which includes an earth-covered buried steel pipe with insulation formed of high strength urethane or other material covering substantially the upper 300 peripheral degrees of the buried pipe; the bottom of the pipe is bare of insulation so that the insulation means provides sufficient resistance to heat flow from the earth above the pipe into the pipe to permit the earth above the pipe to thaw from the surface down to about the horizontal diameter of the pipe during the warm season. The buried pipe is consequently substantially unrestrained against upward movement caused by freezing of the soil in active areas beneath the pipe so that the pipe is subjected to minimum strain or relieves substantially any strain accumulated during the previous cold season.
Patent SE-8402404-L (SE)
Inventor: KRIVEC E
IPC: E02F3/348
Filed: 1984-05-04
Abstract: Apparatus for removing and conveying a heap of debris includes a continuous conveyor supported by a frame and having a charging end and a discharging end; two cantilever arms having outer free ends and having inner ends pivotally supported on the frame for swinging movement about a horizontal transverse arm pivot axis between lowered and raised positions; a transverse crossbeam extending between the outer free ends of the arms and pivoted thereto for swinging movement about a horizontal beam axis; a loading shovel having an open front for shoveling up debris and a back wall which has an upper edge, the shovel being pivoted to the crossbeam for swinging movement about a horizontal shovel pivot axis which is located near the upper edge of the back wall, the arrangement of shovel, crossbeam and arms being such that in the lowered position of the arms, the shovel pivot axis is above the beam pivot axis and the shovel is swingable to a lowered, loading position in engagement with the beam for shoveling in debris and such that in the raised position of the arms the shovel is swingable to a raised position in which the upper edge of the back wall forms a discharge edge for discharging shoveled material to the charging end of the conveyor; and drive devices for swinging the beam about the beam pivot axis, for swinging the shovel about the shovel and for swinging the arms about the arm pivot axis.
Patent SE-8501191-L (SE)
Inventor: GIDLUND P A L
IPC: B21J15/10
Filed: 1985-03-11
Abstract: A riveting device for the assemblage of two or more sheet metal sections (A, B) of a structure comprising a working unit (14) operable on one side of the sections (A, B) to be assembled and a clamping and bucking unit (26) operable one the opposite side of the sections. Both units (14, 26) comprise clamping means (16 and 31, 62, 72) respectively, by which the sections (A, B) are clamped together during the entire working cycle in each rivet position, i.e. during hole making, seal compound application, rivet insertion and rivet upsetting. The clamping means of the bucking unit (26) comprises a head (62; 90), one or more low inertia contact elements (72; 94) and a resilient impact absorbing means (66; 101, 102) provided between the contact element or elements (72; 94) and the head (62; 90). The combination of a low inertia contact element and a resilient impact absorbing means provides a solution to the problem of reducing the extremely high contact forces generated at each blow from the riveting tool between the clamping means on the bucking side and the sheet metal sections (A, B). Deformation of the sections (A, B) due to such high forces is thereby avoided.
Patent SE-8502128-L (SE)
Inventor: MCEVOY J T
IPC: A47C27/14
Filed: 1985-05-02
Abstract: A composite foam seat cushion is comprised of foams of different firmnesses which are bonded to adjacent foams without adhesives or glues. The cushion has a supportive bottom of one or more firm foams, a layer of soft foam on the top of and supported by the bottom layer, a protective front foam cap for the front edge of the layer of soft foam, a protective back foam cap for the back edge of the layer of soft foam and side walls of foam(s) of suitable firmness to provide support. A method of preparing the composite foam seat cushion is disclosed.
Patent SE-8503103-L (SE)
IPC: B65B35/50
Filed: 1985-06-20
Abstract: Filled bags (15,17) are stacked one on top of the other so that the ventilating area (5'') is closed by its sealed edge being located against sealed surfaces on an adjoining bag, partic. a sealed flat side.
Patent SE-8503941-L (SE)
Inventor: BROSENIUS HILDING
IPC: F24D3/10
Filed: 1985-08-23
Abstract: A heating system comprises radiators with corresp. rise and return pipes, a heat source and an expansion tank system. A water pump circulates water between the heat source and the radiators, the heat source being located on a lower level than the radiators. The heat source is directly or indirectly provided at the top with an open outlet, the radiator system water pressure above this outlet being produced by the normally permanently functioning water circulation pump. The position of the valve arrangement is such that the return pipe is held open so long as the pump pressure is maintained, but closes if the pump pressure ceases through power failure or pump fault. In turn, tapping off water from the radiators at the bottom as the result of pump stoppage is prevented.
Patent SE-8600019-L (SE)
Inventor: KELTON A A
IPC: A61M1/22
Filed: 1986-01-03
Abstract: A liquid suspension separator of simple, one-piece construction is provided for field tests such as bovine testing. The liquid suspension separator includes a housing having a separator chamber incorporating a filter body characterized by its ability to laterally filter the particulates of the suspension from the liquid component thereof. The housing incorporates eluant, liquid suspension and discharge ports and the liquid component of the suspension can be immediately collected to permit a test or tests to be run thereupon. One of the embodiments of the separator includes a test chamber which already incorporates a test specimen reactive to the liquid component of the suspension to permit an immediate test to be conducted in the field.
Patent SE-8600781-L (SE)
Inventor: ACKERET P
IPC: G03B23/02
Filed: 1986-02-20
Abstract: A picture viewer has a housing for a pile of pictures, a window for viewing the pictures, and a slider which is used to transport a picture from one side of the pile and guided to the other side of the pile again as the slider is operated. A retaining device selectively operates to prevent the remainder of the pile from being transported out of the housing.
Patent SE-8601464-L (SE)
Inventor: SCHWARTZ L
IPC: H01Q13/08
Filed: 1986-04-01
Abstract: In order to achieve temperature compensation in a microstrip linear array, the array is periodically loaded by means of a plurality of open circuited stubs coupled to the main transmission line through tightly controlled gap dimensions to provide increasing shunt susceptance which compensates for the decease in shunt susceptance of the line as temperature increases.
Patent SE-8602746-L (SE)
Inventor: ANDERSSON A
IPC: E03F3/02
Filed: 1986-06-19
Abstract: The surface and waste water drainage system uses a specially located overflow pipe. The overflow pipe (7) fitted between the surface water well, and for waste water (1) has an inlet aperture (8) in the surface water well. This is at a level which is higher than that for normal surface water flow.
Patent SE-8603364-L (SE)
Inventor: GARIBOLDI R
IPC: G05F1/569
Filed: 1986-08-08
Abstract: Described is an antisaturation circuit for an integrated PNP transistor characterized by a comparator circuit comprising two transistors and a current generator whose output current corresponds to a pre-established function, e.g., an exponential function, of the emitter current of said transistor. The changing of state of the comparator circuit, as determined by said pre-established function of said current generator, is determined by the drop of the VCE voltage of the transistor below a preset minimum value, with a portion of the conduction current of one of the two transistors of the comparator circuit utilized for increasing the forced  beta  of the transistor. This limits the degree of its saturation, as well as the leakage current toward the substrate.
Patent SE-8603724-L (SE)
Inventor: HAAPANEN P
IPC: B65H19/30
Filed: 1986-09-05
Abstract: The present invention relates to a continuously running rewinder with a pressure roller for winding a paper web, for instance, from a supercalender onto a reel-up drum. The rewinder comprises roll stands, which are provided with a primary drive for rotating a rewinding reel-up drum, a pressure roller assembly including the pressure roller via which the web is routed to pass before entering the rewinding reel-up drum and which can be actuated to swing from an open position to a closed position toward the roll stands so that the pressure roller assembly is pressed against the rewinding reel-up drum to form with it a nip for the web. The rewinder includes a pressing bar, whose path of movement is adapted to pass between the pressure roller and the rewinding reel-up drum and via which the web is routed to pass so that when the bar is in its lower position and the pressure roller assembly in its open position the bar holds the web at a lower level than that of the nip. The rewinder also includes a rail-carriage combination for transferring a completed roll on the reel-up drum off from the roll stands to an exit point, as well as a movable secondary drive, which can be switched over to rotate an almost completed rewinding reel-up drum during the splicing and severing operations of the web. The rewinder in accordance with the present invention facilitates a flying reel-up drum change when using a mandrel rewinder with a pressure roller assembly for rewinding a paper web.
Patent SE-8700203-L (SE)
Inventor: KIMURA K
IPC: C07D407/12
Filed: 1987-01-20
Abstract: Pyroglutamide derivatives have been found to be useful as nootropic agents for administration to humans and animals.
Patent SE-8703312-L (SE)
Inventor: ERICSSON S J D
IPC: B41F35/00
Filed: 1987-08-27
Abstract: The matrix (1a) comprises a printing frame in which is tensioned a sheet (1b). Fixed to this sheet is a further sheet (1c) encompassing a printing pattern. The cleaning device can remove this latter sheet where the printing frame, during cleaning or removal, works in conjunction with fixtures (2). The frame, together with its fixtures, can be rotated (3,3') so that one side (1a') of it can face in one direction or the other.
Patent SE-8800415-L (SE)
Inventor: SIHVOLA E J
IPC: F16M1/00
Filed: 1988-02-09
Abstract: Method for producing multi-axled machines, where the number of parallel-connected end walls on each side of machines is adapted according to the loads which arise. The end walls are produced by injection moulding with ready-made holes for assembly, axles, bearing seats and leadthroughs. Reinforcing springs are provided according to loading requirements. Polysulphones provide the necessary strength. <IMAGE>
Patent SE-8803835-L (SE)
Inventor: SOLC NEE HAJNA J
IPC: C08J3/02
Filed: 1988-10-26
Abstract: Prepn. of colloidal size particulate prod. (I) comprises first emulsifying a hydrophobic emulsion polymerisable monomer(s) in an aq. colloidal dispersion of discrete particles of inorganic solid (I). A dispersant or surfactant is used to maintain the dispersion in a stable state. Then subjecting the emulsion to polymerisation conditions to give a stable, fluid aq. colloidal dispersion in which every particle of (I) is coated with the resulting hydrophobic polymer. In the prod. the (I) particles are maintained in a discrete spaced apart relationship to each other by the hydrophobic polymer. - The (I) is typically a particulate metal, metal oxide, pigment, filler, etc., and in the prod. the particles do not aggregate. The (I) may be a magnetic material for use in magnetic paints, electrically resistive barriers and mouldable magnetic powders, toners in electrophotographic apples., electroconductive additives for plastics, diagnostic materials for human and animal health applicns. The prods. are useful in chemical processing.
Patent SE-8900684-L (SE)
Inventor: JAERAAS S G
IPC: B01J23/28
Filed: 1989-02-27
Abstract: The invention relates to a catalyst for the reduction of nitrogen oxides and comprises oxides of transition metals on a particulate carrier material, the catalyst comprising:   1) a carrier material consisting of small grains of an inorganic oxide, 2) a catalytic layer thereon containing TiO2 and V2O5, and obtained by a separate or simultaneous coating of the components on the carrier material, the catalyst particles being in the order of 10-200  mu m and the catalyst being intended to operate at temperatures of 150-220 DEG C. The invention also relates to a method for the preparation of the catalyst, and the use thereof for the reduction of nitrogen oxides in gases at low temperatures.
Patent SE-8901261-L (SE)
Inventor: HARTWIG C S M
IPC: E21D9/10
Filed: 1989-04-10
Abstract: Tunnel boring machine. The machine comprises a housing (1,2,3) carrying the stator (5) of an electric motor. A boring head (9) is journalled on the housing. The boring head carries the rotor (7) of the electric motor. The motor is multipolar and is fed with low frequency current from an inverter (16).
Patent SE-9003832-L (SE)
Title: Marking arrangement for emergency exits, doors, etc. - comprises elastic plastics material carrier with mixt. of electroluminescent pigment
Inventor: MYRBERG L
IPC: G09F7/00
Filed: 1990-11-30
Abstract: A strip-shaped carrier (10) of elastic plastic has an electro-luminescent pigment mixed with it, and at least one field (11) with a light-reflective surface. This field is placed on the one side of the marking device, which is slightly vaulted. The opposite side of the carrier is flat, and provided with a self-adhesive tape (12). The elastic plastic is a polyvinylchloride, in which the electro-luminescent pigment contg. zinc sulphate doped with copper is mixed. The plastic pulp is extruded to the desired shape. The light-reflective field is applied on the carrier front side, and the self-adhesive tape (12) to the rear. The marking device can easily by cut to the required length, and applied on flat or curved surfaces.
Patent SE-9004113-L (SE)
Inventor: JACKOVITZ J F
IPC: B01D59/42
Filed: 1990-12-21
Abstract: Both a method and apparatus for separating zirconium isotopes by balanced ion migration in a counterflowing electrolyte are disclosed herein. In the method of the invention, zirconium chloride is dissolved in a solution of HCl, and a voltage of between 2 and 50 volts is applied across the electrolyte to create a flow of zirconium ions toward the cathode, and a counterflow of chlorine ions toward the anode which is balanced such that the lighter weight isotopes of zirconium migrate toward the cathode while the heavier weight zirconium isotopes stay in the vicinity of the anode. The apparatus of the invention includes a polarizing assembly formed from a bundle of small diameter glass tubes aligned between the anode and the cathode. The internal shape of the tubes impedes kinetic agitation movement of the zirconium ions in all directions except in the direction between the anode and the cathode, thereby expediting the separation process. Glass frits are used to partition off the electrolyte in the region of both the anode and the cathode so that the isotopes which eventually accumulate in these regions may be drawn off with a minimum of fluid agitation.
Patent SE-9100527-L (SE)
Inventor: RAMASWAMY C P
IPC: B60R21/26
Filed: 1991-02-25
Abstract: The invention is directed to a primary/detonator composition suitable for use in an automobile airbag system. The composition may safely be housed in aluminum support structures (a/k/a cups).
Patent SE-9102111-L (SE)
Inventor: LOENNER BO VALDEMAR
IPC: A01L1/02
Filed: 1991-07-05
Abstract: An arrangement for ventilation of an animal room for smaller animals, such as rats, with a number of animal receptacles, consisting of a suction device (4) to remove polluted air from the container, which suction device is equipped in each container (1) with an inserted inlet (13) which communicates with a space (16) between the container's base and the container's affixed plate (9), on which the animal abodes. The plate is removably affixed in the container and the suction device's inlet consists of a pipe (13), which is preferably removably affixed on the plate (8) and which through a hole (12) in it communicates with the mentioned space.<IMAGE>
Patent SE-9201328-L (SE)
Inventor: KLEMM G W
IPC: E21B10/36
Filed: 1992-04-28
Abstract: The device comprises a solid drill bit (28) and an annular drill bit (40). Axial impacts are exerted on the solid drill bit (28) which are transmitted onto the annular drill bit (40) through impact transmission surfaces. The annular drill bit (40) is freely axially displaceable within limits. It has rearwardly projecting tongues (43) that engage windows (15) of an outer pipe end piece (12). Thus, the movability of the annular drill bit (40) is ensured without any keyings or the like being necessary, which entail the risk of a clogging with bore material. All movable parts are included in the scavenging so that jamming is avoided.
Patent SE-9403645-L (SE)
Inventor: GEUKEN STEFAN
IPC: A62C3/00
Filed: 1994-10-24
Abstract: PCT No. PCT/SE95/01230 Sec. 371 Date Apr. 22, 1997 Sec. 102(e) Date Apr. 22, 1997 PCT Filed Oct. 19, 1995 PCT Pub. No. WO96/12525 PCT Pub. Date May 2, 1996In order for a duct shut-off device to present the least possible resistance to flow in a duct when the device is in a non-activated state, a duct section (1) is provided with plates (3) which extend longitudinally in the flow direction and which are coated with an expandable material which reacts when the temperature, pressure or some other physical or chemical property of a substance flowing through the duct exceeds a given threshold level. When this threshold level is exceeded, the expandable material on the plates will swell and therewith reduce the cross-sectional area of the duct successively until the duct is completely close.
Patent SE-9404312-L (SE)
Inventor: LUNDBAECK HANS OLOF
IPC: H01Q1/52
Filed: 1994-12-12
Abstract: The present invention relates to a device at antenna systems for generating radio waves, whereby the antenna system includes a supporting structure on which there is provided at least one main radiator (3) for transmitting radio waves and whereby high-frequency electric currents are generated in the supporting member when the main radiator (3) is activated to transmit radio waves. In order to improve by simple means the range of the main radiator (3) and at the same time reduce its radiation backwards, the supporting structure includes a secondary radiator (14) for each main radiator (3), which secondary radiator (14) has at least one break portion (12) for interrupting or breaking the high-frequency electric currents generated therein and through the thereby interrupted flow of the high-frequency electric currents in the supporting structure reduce deviations from the desired range and/or direction of the radio waves transmitted by the main radiator (3), whereby the secondary radiator (14) includes a connecting means (13) which is provided to connect portions of the supporting structure located on opposite sides of the break portion (12) which each other on an inner side relative to said break portion (12), and whereby the connecting means (13) is provided to impart a flow path to the high-frequency electric currents flowing through the supporting structure such that the energy represented by said currents permits the secondary radiator (14) to transmit radio waves with a suitable amplitude and phase relative to the amplitude and phase of the radio waves transmitted by the main radiator (3). <IMAGE>
Patent SE-9404384-L (SE)
Inventor: DAHLSTRAND MONIKA
IPC: A61B18/02
Filed: 1994-12-16
Abstract: A surgical instrument (1) utilizing a laser beam is frequently used to obtain an incision (15) through gasification or vaporisation. This gasification and vaporisation is usually extremely injurious to the person operating the instrument (1). The object of the present invention is to draw off as much of said vaporisation and gasification as possible. In practise this is achieved by providing the radiation end (3) of the instrument (1) with a conical sleeve (7) connected to a suction arrangement (11-13) so that the beam is surrounded from the centre and outwards by a suction effect.