| 摘要 |
<p>A footbridge for connection between a fixed installation and an oscillating installation, for example petroleum production platforms, comprising three sections hinged together, the end sections being hinged to rotatable platforms adapted to be secured to the decks of the installations and the platform secured to the oscillating installation being secured thereto by a ball joint. Apparatus is also provided for compensating for the weight of the footbridge, the apparatus consisting of counterweights or jacks mounted on at least one of the installations.</p> |
