(57) A device for transfer of persons and/or goods to and/or from a pelagic structure
(1). comprising a first bridge (4) which is in pivotal connection with said structure
(1) and which at its free end, through a pivotal connection (7, 8, 9, 11), carries
a second bridge (14), which at its free end, through a pivotal connection, is coupled
to a third bridge (19), in such a manner that the vertical and horizontal distance
between the highest point (5) and the lowest point (23) may be varied while maintaining
the same angle of inclination relatively to a mean plane of all the footbridge elements.
In order to achieve this the connection between the free end of said first bridge
(4) and the second bridge (14) comprises a column (7) equipped with a disc (11) which
is rotatable in its own plane about the longitudinal axis of said column (7), and
said second bridge (14) is pivotable about an axis parallel to the plane of said disc
(11). A piston/cylinder device (12), the length of which may be varied in the longitudinal
direction of the column (7), is pivotally connected to a point (24) between the ends
of said third bridge (19).
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