Abstract: The invention relates to an apparatus and method which allows information representing a state or condition or an action to be performed as part of a control system to be present to one or more users. The information is selected and generated in a manner which removes or at least reduces the risk of potentially catastrophic error occurring which would be possible if, for example, the information is corrupt or lost during subsequent transmission, remote processing and/or displaying. One such use of the apparatus and method of the invention is in relation to transport vehicles and the control of the movement of said vehicles along predefined geographical paths.

Abstract: The invention relates to an apparatus and method which allows information representing a state or condition or an action to be performed as part of a control system to be present to one or more users. The information is selected and generated in a manner which removes or at least reduces the risk of potentially catastrophic error occurring which would be possible if, for example, the information is corrupt or lost during subsequent transmission, remote processing and/or displaying. One such use of the apparatus and method of the invention is in relation to transport vehicles and the control of the movement of said vehicles along predefined geographical paths.

Abstract: An apparatus for assembling a heat exchanger core matrix has a tube feed means for feeding heat exchanger tubes to a support surface upon which the heat exchanger is assembled and fin feed means for feeding heat exchanger fins to the same support surface. Both the tube feed means and the fin feed means are located above the support surface and, in use, the apparatus is operable to sequentially and vertically feed the tubes and fins to the support surface via a common feed guide. This arrangement enables the manufacture of large format heat exchanger cores.