Warp chain tensioner for offshore oil- or gas platform docking, comprises frame supporting chain wheel driven by micro-electric geared drive

摘要

A tensioner (4) comprises a support frame (8) for a drive wheel (6) with a horizontal axis (10). The wheel is turned by a micro-electric geared drive. Its teeth (16) are sized to mesh into and grip the chain (1) link (3) openings orientated parallel with the wheel axis. Wheel rotation tensions the chain.