The resource logic of complex predicate interpretation

An extendible tower is disclosed herein having a base section and a plurality of nestable extendible sections associated therewith. A single cable drive system is concealed within the sections and is employed to raise and lower the extendible sections with respect to each other. Adjustable roller guides are provided for each extendible section so as to insure proper raising and lowering thereof. The uppermost section may be provided with any desired apparatus or equipment such as lights, a work platform, or the like. The tower may be portable and self-sufficient. When mounted on a trailer or other vehicle having electrical generator means thereon, the tower may be transported to any desired location and generate its own power for raising and lowering of the tower, for operation of lights, and the like. Such a tower may likewise be equipped with reel means for maintaining appropriate tension on electrical or other service lines that extend through the tower sections to lights or other apparatus mounted on top of the tower.