A vessel including a boom construction, especially a gangway construction, for transferring persons and/or cargo from said vessel to an offshore object or vice versa. The boom construction includes an elongated mast structure extending in a direction substantially upwards from a deck of said vessel. Said mast structure is pivotally mounted with respect to a hull of the vessel in a manner such as to be pivotable with respect to said hull about a single pivot axis only. The boom construction further includes a boom, especially a gangway, which is connected to the mast structure and which extends from the mast structure in a substantially sideward direction. Furthermore, the boom construction includes at least one actuator for pivoting the mast structure such as to compensate for at least a part of a roll movement of the hull of the vessel.

A method and apparatus for automatically aligning and connecting a passenger boarding bridge (PBB) with the passenger door of an aircraft or other vessel. A sensory suite module includes cameras and sensors to scan the apron for obstacles and identify an aircraft based on external features. The sensory suite module also includes one or more high-precision active laser line profilers to detect the vertical and lower edges of an aircraft door. A controller module provides precise control and movement of the distal end of the PBB and guides the distal end of the PBB to the passenger door. The system can be activated by a remote triggering panel module.

A passenger boarding bridge leveling mechanism mounted on a passenger boarding bridge includes a four-bar linkage mechanism and a preload apparatus. The four-bar linkage mechanism includes a mounting base which can be fixedly mounted on the passenger boarding bridge. One of the other three bars of the four-bar linkage mechanism extends outwards, and a leveling wheel and a first detection switch are mounted on the end of the bar. The first detection switch is used for detecting the vertical displacement of the leveling wheel on an aircraft fuselage. The preload apparatus has a preload force. One end of the preload apparatus is connected to the four-bar linkage mechanism, and the other end is connected to the mounting base. The preload apparatus has a preload force to make the leveling wheel maintain a tendency of extending outwards. The passenger boarding bridge leveling mechanism has high test precision and can work reliably.

An assembly for converting motion comprises a first arm rotatable about a first fixed pivot; a second arm rotatable about a second fixed pivot spaced apart from the first fixed pivot. A third arm pivotably connects to the second arm. A fourth arm pivotably connects to the first arm. A first connecting arm extends between the first arm and the third arm, the first connecting arm pivotably connected to the first arm and pivotably connected to the third arm. A second connecting arm extends between the first arm and the second arm, the second connecting arm pivotably connected to the first arm disposed and pivotably connected to the second arm. The third arm connects to a first position on a component to be moved relative to the first and second fixed pivots and the fourth arm connects at a second position thereon to a second position on the component.

An assembly for converting motion comprises a first arm rotatable about a first fixed pivot; a second arm rotatable about a second fixed pivot spaced apart from the first fixed pivot. A third arm pivotably connects to the second arm. A fourth arm pivotably connects to the first arm. A first connecting arm extends between the first arm and the third arm, the first connecting arm pivotably connected to the first arm and pivotably connected to the third arm. A second connecting arm extends between the first arm and the second arm, the second connecting arm pivotably connected to the first arm disposed and pivotably connected to the second arm. The third arm connects to a first position on a component to be moved relative to the first and second fixed pivots and the fourth arm connects at a second position thereon to a second position on the component.

A gangway comprises a fixed platform and a support structure. The support structure is connected to the fixed platform in a manner that allows the support structure to rotate with respect to the fixed platform. A releasable position locking assembly inhibits rotation of the support structure in a raising direction.

A gangway comprises a fixed platform and a support structure. The support structure is connected to the fixed platform in a manner that allows the support structure to rotate with respect to the fixed platform. A releasable position locking assembly inhibits rotation of the support structure in a raising direction.

An assembly for converting motion comprises a first arm rotatable about a first fixed pivot; a second arm rotatable about a second fixed pivot, the second fixed pivot spaced apart from the first fixed pivot; a third arm pivotably connected to the second arm; a fourth arm pivotably connected at a first position thereon to the first arm and pivotably connected at a second position thereon spaced apart from the first position thereon to the third arm; a connecting arm extending between the first arm and the second arm, the connecting arm pivotably connected to the first arm and pivotably connected to the second arm; and a support arm pivotably connected to the fourth arm.

An assembly for converting motion comprises a first arm rotatable about a first fixed pivot; a second arm rotatable about a second fixed pivot, the second fixed pivot spaced apart from the first fixed pivot; a third arm pivotably connected to the second arm; a fourth arm pivotably connected at a first position thereon to the first arm and pivotably connected at a second position thereon spaced apart from the first position thereon to the third arm; a connecting arm extending between the first arm and the second arm, the connecting arm pivotably connected to the first arm and pivotably connected to the second arm; and a support arm pivotably connected to the fourth arm.

A gravity drawbridge is a moveable bridge that utilizes gravity and fluid transport to transition a bridge deck between an open configuration and a closed configuration. The gravity bridge includes a fulcrum, a first fluid reservoir, a second fluid reservoir and a fluid pump. The first fluid reservoir and the second fluid reservoir are internally mounted within the bridge deck. The first fluid reservoir and the second fluid reservoir are in fluid communication to each to transport a quantity of fluid between the first fluid reservoir and the second fluid reservoir using the fluid pump. The bridge deck rotates about the fulcrum as the quantity of fluid is transported between the first fluid reservoir and the second fluid reservoir to transition the bridge deck between the open configuration and the closed configuration.