Abstract: The invention relates to a pump system for providing and maintaining a controlled outflow, comprising a couple of piston pump units (1a, 1b), having at least two cylinders (2a, 2b, 2c, 2d) each with a piston (3a, 3b, 3c, 3d) slidably arranged in each cylinder. It further comprises devices for controllably moving the piston in each cylinder, namely by an eccentric wheel (15a, 15b, 15c, 15d) for each of the pistons, acting on one end thereof. There is also provided a control unit for dynamically changing the speed of movement of the devices for moving the piston, in response to pressure changes in the system on the pressure side, for maintaining a desired flow out of the pump.

Abstract: The present invention relates to an apparatus and a method for recognizing and determining the position of a part of an animal. The apparatus comprises a source of structured light for illuminating a region expected to contain at least one of the part in such a way that an object illuminated by the light will have at least one illuminated area with a very distinct outline in at least one direction, an image capture and processor device arranged to capture and process the at least one image formed by the light and a control device to determine if the illuminated object is the part by comparing the image of the illuminated object to reference criteria defining different objects, and if the illuminated object is established to be the part of the animal, the position thereof is established, and animal related device and a device to guide the animal related device towards position of the part are provided.

Abstract: A transponder for, for example, domestic animals can receive high frequency energy and transmit information of an antenna (L.sub.x, L.sub.y, L.sub.z) and has a storage capacitor (C.sub.5) for storing received energy, which is used for transmitting on the antenna. In order to make the antenna less sensitive to the geometric direction of the received high frequency energy, it has a plurality of antenna coils (L.sub.x, L.sub.y, L.sub.z), that are arranged in an angle to each other, e.g. perpendicularly to each other. Monitoring circuits (LD.sub.x, LD.sub.y, LD.sub.z, 1) can detect the energy received on each coil and compare the detected values to each other and can, for issuing information, use that coil on which the largest energy has been received. Thereby, the transmission can be made in a direction which is considerably more optimal than a direction which otherwise would be obtained in a more random fashion.

Abstract: A device for transmitting data from a movable unit such from a domestic animal contains a conventional passive transponder unit (1) which is coupled to an antenna (3). The transponder (1) comprises means (23) for storing electrical energy comprised in electrical voltage pulses received on the antenna (3) and can by means of the stored energy transmit on the antenna (3) pulse sequences carrying information such as identification data for the device. Further, in the device a permanent electrical current source such as a lithium battery (9) is provided, which powers a processor (7). The processor (7) receives signals from a motion sensor (15) and is coupled to a transmitter (11) having an antenna (13) and can activate the transmitter (11) for transmitting radio signals having a good range, when the motion detector (15) signals an increased activity, such as for a non-milking cow during the estrus period.

Abstract: The invention concerns an aqueous suspension of a non-ionic, water-soluble cellulose ether cross-linked with glyoxal, in the presence of an electrolytic salt which gives a pH value below 8.0 in water and at the concentration involved. Conveniently, the suspension is produced by mixing the water included with a dry blend containing the cellulose ether and the electrolytic salt, and preferably the other components of the suspension as well.

Abstract: A device for transmitting data from a movable unit such from a domestic animal contains a conventional passive transponder unit (1) which is coupled to an antenna (3). The transponder (1) comprises means (23) for storing electrical energy comprised in electrical voltage pulses received on the antenna (3) and can by means of the stored energy transmit on the antenna (3) pulse sequences carrying information such as identification data for the device. Further, in the device a permanent electrical current source such as a lithium battery (9) is provided, which powers a processor (7). The processor (7) receives signals from a motion sensor (15) and is coupled to a transmitter (11) having an antenna (13) and can activate the transmitter (11) for transmitting radio signals having a good range, when the motion detector (15) signals an increased activity, such as for a non-milking cow during the estrus period.

Abstract: A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer closer to the channel and a second plastic layer outside the first layer, at least the second layer containing a major amount of draw orientable polymer resin. The polymer in the second layer is axially oriented to an orientation degree (as defined) of more than 25% and less than 90% and that the polymer of the first layer has an axial orientation degree not exceeding 10% orientation degree units more than that of the second layer.

Abstract: In a method of producing a suspension of a nonionic cellulose ether that has no turbidity point, the water forming part of the suspension is mixed with a dry mixture containing a cellulose ether, which is cross-linked with glyoxal, and an electrolyte salt. This electrolyte salt consists of a salt of a mixture of salts which, in water and at the concentration employed, results in a pH value below 8.0. Preferably, the cellulose ether is a hydroxyethylcellulose.

Abstract: A reflux valve means for a fluid conduit (30) having a fluid outflow end, wherein the valve means includes a vacuum valve (10) intended for connection to a conduit branch (18) preferably to a top part or rising gradient of the conduit upstream of its outlet end. The valve (10) includes a valve housing (15, 16) provided with a passageway (20, 17, 19) which establishes communication between the atmosphere surrounding the valve and the conduit branch (18). The passageway includes a valve seat (12) and a valve plate (11) which can be moved into and out of sealing contact with the seat (12) under the influence of conduit pressure that is higher than atmospheric pressure. The valve plate (11) of the vacuum valve is constructed to be deformable elastically into and out of a generally dish shape when the valve is closed, under the influence of those pressure variations that normally occur in the fluid in the conduit branch.

Abstract: A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer closer to the channel and a second plastic layer outside the first layer, at least the second layer containing a major amount of draw orientable polymer resin. The polymer in the second layer is axially oriented to an orientation degree (as defined) of more than 25% and less than 90% and that the polymer of the first layer has an axial orientation degree not exceeding 10% orientation degree units more than that of the second layer.

Abstract: The present invention relates to a method for measuring conductivity, in particular for use in liquid chromatography systems, and to a device for performing such measurement. In one aspect it provides a method of measuring conductivity in liquids, comprising applying an AC voltage over a conductivity measurement cell. In response to a conductance value calculated from the output of the cell, an expected frequency of the AC voltage is generated. The AC voltage frequency is set to the calculated value. The above steps are repeated until two consecutive conductance determinations differ by only a predetermined absolute value. Then the value may be displayed and registered as the true conductance value of the sample.

Abstract: The invention relates to a motor vehicle gearbox with two concentrically mounted input shafts (6,9), each driving an individual countershaft (12,15). The countershafts have gear wheels (16,18,17,19,41) in engagement with gear wheels (21,22,40) on an output shaft. The shafts are arranged in a V-configuration and one countershaft has a disengageable gear wheel (23) in engagement with a gear wheel (11) on the second countershaft to reverse the rotational direction of the latter for driving in reverse. One countershaft (12) has a central synchronizing device (30), by means of which the countershaft, which is drivingly coupled to the temporarily non-driven input shaft, can be accelerated up to a rotational speed determined by the gear speed selected.

Abstract: The invention relates to a device for heating billets, strip or sheet-metal, the device including one or more inductive edge heaters to heat the edges of a billet on its way from a continous casting machine, or strip or sheet-metal coming from a hot-rolling mill, arranged to surround the outer parts of the edges in order to heat them. The induction heater(s) comprises(s) one or more flat spiral element(s) (1) bent around the side edges of the billet, etc, and also at least one vertically placed, flat coil (4), located substantially parallel with the side edge (5) of the billet, etc.

Abstract: The invention relates to methods for producing a metallic element such as a gasket (12) or a filter. The production methods relate to compacting of a stud (10) of coiled wire (11) having a rectangular cross-section into a compacted metallic element (12) and sintering of said element at an elevated temperature. The wires of the compact and sintered metallic element (12) are mutually interlocked.

Abstract: Nitrogen oxide containing flue gases are purifyed by being subjected to an oxidation/reduction by means of a catalyst material, which comprises vanadium pentoxide on a support material. The purification is carried out in two separate steps, at which the content of nitrogen oxide in the flue gases are oxidized by means of a mordenite catalyst in the first step and are reduced by means of a catalyst of vanadium pentoxide on an acidic support material in the second step.

Abstract: An exhaust gas purifier of the type wherein a catalytic body is elastically supported within a metal casing. This is achieved by at least partly filling a space between the catalytic body and the metal casing with a dampening member comprising one or more wire blocks. The wire is preformed of a screw shape and that preformed wire is wound into the shape of the block. This block is stretched to elastically fit over the body, and the block is compressed between the body and the casing.

Abstract: The present invention relates to an arrangement in vehicle hydraulic service brake systems for activating at least one of two conventional braking cirucits included in the brake system when an obstacle is detected, by means of a sensor, in the direction in which the vehicle is travelling. The novel matter of the invention resides in that a pressure accumulator is connected to the brake circuit via a valve unit which is adapted, in normal position, to establish free communication between the vehicle main cylinder and the vehicle wheel brakes, and to permit pressure build-up of the pressure accumulator upon depression of the vehicle brake pedal. The sensor is adapted, upon actuation, to activate the valve unit, whereby the communication between the vehicle wheel brakes and the vehicle main cylinder is interrupted, and the pressure accumulator is connected with the wheel brakes for application thereof.

Abstract: A compressor of the rotary type is driven by a motor via a gear wheel arranged on the shaft of the compressor and cooperating with a gear wheel arranged on the shaft of the motor, the gear wheels and the shafts being enclosed in a gear housing. The motor is fastened to a detachable wall part of the gear housing, and the motor shaft is journalled solely in the bearings of the motor and protrudes into the gear housing through an opening in the wall part. The opening is provided with sealing means which prevent a medium from forcing its way out of the gear housing. The gear wheels are accessible for dismantling and assembly when the wall part together with the motor is detached from the rest of the gear housing.

Abstract: The invention relates to a motor vehicle gearbox with two concentrically mounted input shafts (6,9), each driving an individual countershaft (12,15). The countershafts have gear wheels (16,18,19,41) in engagement with gear wheels (21,22,40) on an output shaft. The shafts are arranged in a V-configuration and one countershaft has a disengageable gear wheel (23) in engagement with a gear wheel (11) on the second countershaft to reverse the rotational direction of the latter for driving in reverse. One countershaft (12) has a central synchronizing device (30), by means of which the countershaft, which is drivingly coupled to the temporarily non-driven input shaft, can be accelerated up to a rotational speed determined by the gear speed selected.