A wind energy tower erection device is disclosed together with the method of assembling the same and the method of utilizing the device to erect a wind energy tower. The tower erection device successively places tower sections one upon the other until the tower is erected.

An apparatus for supporting a lamp post or the like, comprising a base frame, and at least a first support column coupled with an end to the base frame and having at its other end a first coupling member for fastening to the light post, at a position removed from the base frame, wherein a second support column is provided whose one end is coupled with the base frame and whose other end is provided with a second coupling member for fastening to the first support column, between its to extremities, such that the first coupling member of the first support column that is to be coupled to the light post, is above the base frame and, viewed from the top, between the ends of the first and a second support columns coupled to the base frame.

A retractable column formed from a set of at least three flexible webs with each of the webs having a set of teeth located along opposite edges of the webs, each of the teeth having a first ear obliquely extending from a first side and a second ear obliquely extending from a second side, each of the teeth spaced from an adjacent tooth a base distance substantially equal to a root distance of a tooth on the web so that when a tooth on one of the webs is engaged in a neck to neck relationship with a pair of teeth on one of the other webs the teeth on each of the webs engage each other in an interlocking relationship to hold the webs proximate each other to form a rigid column. By flexing a portion of the teeth that are in engagement with each other one can disengage the interlocked teeth and roll the web onto a take up mechanism and similarly, by flexing a portion of the teeth as the teeth are brought into engagement with one another one can force the teeth into interlocking engagement with each other as the web is unrolled from the take up mechanism.

A lifting apparatus for high-place work which includes a moving supporting leg having a guiding case with opposite open ends and plural walls, guiding grooves attached to said walls, plural elastic strips, a plurality of connecting pieces transversely attached to said elastic strips with the connecting pieces having a proportional number composed of shorter and longer lengths with the longer connecting pieces having fitting grooves on ends thereof, which matingly engage the ends of the shorter connecting pieces. The elastic strips are rotatably wound about respective winding drums disposed on the loading box of a vehicle and driven a driving force originating from the power source of the vehicle such that by unwinding the respective elastic strips an integrated column is formed at a desired elevated high location.

An extendable and retractable column which is formed from at least three linked sections. The linked sections include a plurality of individual sections linked end to end. As the linked sections are extended, each of the individual sections of the linked chains engage individual sections of adjacent linked chains to form a column. As the linked sections are retracted, each of the individual sections of the linked chains disengage from the individual section of the adjacent linked sections and the individual linked sections may be rolled up for compact storage.