Abstract: A track changing apparatus for changing a track on an armored vehicle includes a plurality of moveable elements. The plurality of moveable elements of the track changing apparatus allows a track to be manipulated from loose or unmounted state, to a tensioned state wherein the track is located on the track changing apparatus, and finally, to a fully mounted state wherein the track has been transferred onto the armored vehicle. In at least one embodiment, the track changing apparatus may be used to remove a track from an armored vehicle. Methods of using a track changing apparatus are also described, including a method of mounting a track onto an armored vehicle.

Abstract: A track changing apparatus for changing a track on an armored vehicle includes a plurality of moveable elements. The plurality of moveable elements of the track changing apparatus allows a track to be manipulated from loose or unmounted state, to a tensioned state wherein the track is located on the track changing apparatus, and finally, to a fully mounted state wherein the track has been transferred onto the armored vehicle. In at least one embodiment, the track changing apparatus may be used to remove a track from an armored vehicle. Methods of using a track changing apparatus are also described, including a method of mounting a track onto an armored vehicle.

Abstract: A track changing apparatus for changing a track on an armored vehicle includes a plurality of moveable elements. The plurality of moveable elements of the track changing apparatus allows a track to be manipulated from loose or unmounted state, to a tensioned state wherein the track is located on the track changing apparatus, and finally, to a fully mounted state wherein the track has been transferred onto the armored vehicle. In at least one embodiment, the track changing apparatus may be used to remove a track from an armored vehicle. Methods of using a track changing apparatus are also described, including a method of mounting a track onto an armored vehicle.

Abstract: A track changing apparatus for changing a track on an armored vehicle includes a plurality of movable elements. The plurality of movable elements of the track changing apparatus allows a track to be manipulated from loose or unmounted state, to a tensioned state wherein the track is located on the track changing apparatus, and finally, to a fully mounted state wherein the track has been transferred onto the armored vehicle. In at least one embodiment, the track changing apparatus may be used to remove a track from an armored vehicle. Methods of using a track changing apparatus are also described, including a method of mounting a track onto an armored vehicle.

Abstract: Provided is a method for detecting an analyte, wherein the analyte is labelled with one or more labels relatable to the analyte, which method comprises: a) performing an optical detection method on the labelled analyte to obtain optical data from the one or more labels; b) performing an electrical detection method on the labelled analyte to obtain electrical data from the one or more labels; and c) determining the identity and/or quantity of the analyte from both the optical and electrical data.

Abstract: The present invention provides a macromolecular switch (51) suitable for use in a data acquisition and/or processing device. The switch comprises a macromolecular structure (10) having an ion binding site (14), and is flippable between a plurality of discretely different conformations corresponding to different ion binding conditions at the ion binding site (14). The macromolecular structure (10) is provided with at least one electrochemical input device (43) for applying such different ion binding conditions to the ion binding site (14) in response to corresponding external input signals. The invention also provides a method for data acquisition and/or processing, using a macromolecular structure switch of the invention.

Abstract: An apparatus and method for balancing the emission current of neutralizers in ion thruster arrays is disclosed that allows a single power processing unit (PPU) to be used to drive the array. A typical embodiment includes at least one voltage-regulated power supply, each voltage-regulated power supply for driving a common element in each of the plurality of ion thrusters, the common element in each of the plurality of ion thrusters being coupled together at a common point, and a current balance circuit for providing a substantially balanced current to each neutralizer cathode of the plurality of ion thrusters by providing a voltage to the neutralizer cathodes relative to the common point.

Abstract: Arc welding control apparatus includes a laser (10) for projecting a first reference mark (24) along a first axis onto the line of a weld (26) and a video camera (12) arranged to view the work piece along a second axis to generate a video image including the first reference mark. The apparatus is mounted on a welding torch for movement therewith, the first and second axes intersecting at a predetermined point relative to the video camera. Sensor control means (30) receives the video signal from the video camera, and generates a composite video signal representing the original image with an image of a second mark superimposed therein. The position of the second mark is adjustable within the image frame. The position of the welding torch is set such that the welding electrode is positioned with the first mark projected onto the line of the weld ahead of the torch. The location of the second mark is adjusted within the image frame such that it is aligned with the first mark.

Abstract: A rolling mill (1) for rolling metal strip has provision for applying discrete levels of liquid coolant to the strip and the temperature (te) of the strip leaving the mill is compared with a target temperature (ts) and the temperature (Te) the incoming workpiece is compared with a target temperature (Ts). The difference signals are employed to control the levels of liquid coolant and the rolling speed so that the exit temperature remains substantially equal to the target exit temperature.

Abstract: Trapping apparatus for livestock comprising a first barrier partially defining an enclosed area and having an entrance for admitting livestock into the enclosed area, a rotatable gate extending between the open ends of the first barrer and rotatable about a vertical support to sweep the enclosed area, a second barrier extending between one end of the first barrier and the gate support, and a detector for detecting livestock located within the enclosed area and arranged to initiate rotation of the gate whereby livestock located in the enclosed area are forced through an opening between the gate support and the other end of the first barrier.