Underwater structure e.g. dock, inspection apparatus, has telescope bars extended break-free by several pipe sections, and track comprising changeable target curve progression and guiding rollers comprising negative profile

摘要

The apparatus has a positioning device with a continuously adjustable vertical duct having telescope bars, and a horizontal duct. The horizontal duct has a track (FB) and a carriage guided by guiding rollers. The bars are extended break-free by several pipe sections (RA). The track comprises changeable target curve progression, and the guiding rollers comprises a negative profile (NP) recording a profile of the track.