Pivotal gangway having container spotting system
An apparatus comprising a gangway having a proximal end and a distal end. A cage assembly is connected to the distal end of the gangway. The apparatus further comprises a container spotting system including a camera mounted such that its field of view will show a hatch cover of a container when the hatch cover is in a predetermined location. Video electronics are in electrical communication with the camera. The container spotting system further includes a display device in electrical communication with the video electronics, the display device being operative to show at least a selected portion of the field of view of the camera. The camera may comprise an outdoor dome camera mounted to an underside of the gangway.
1. A method of moving a container having a top hatch cover into position to be loaded or unloaded, said method comprising steps of:
(a) positioning the container alongside a structure supporting an elevated gangway which is pivotal between a stowed position and a working position, the gangway having a cage assembly at its distal end defining an enclosed area;
(b) while moving the container, viewing a display device showing a field of view corresponding to at least a portion of the enclosed area of the cage assembly when the gangway is in the working position; and
(c) stopping movement of the container when the top hatch cover is in a selected location within the enclosed area of the cage assembly,
wherein the display device has target indicia thereon and step (c) involves aligning the top hatch cover with the target indicia.
2. The method as set forth in claim 1 , further comprising the step of:
(d) lowering the gangway into the working position after the top hatch cover is in the selected location.
3. The method as set forth in claim 2 , further comprising the step of:
(e) opening the top hatch cover of the container.
4. The method as set forth in claim 1 , wherein the display device is a flat screen display mounted at an elevated location.
5. The method as set forth in claim 4 , wherein the flat screen display is mounted at the upper end of a column.
6. The method as set forth in claim 4 , wherein the target indicia is formed as an “X”.
7. The method as set forth in claim 1 , wherein the field of view shown on the display device is supplied via a camera mounted to an underside of the gangway.
8. The method as set forth in claim 7 , wherein said camera comprises an outdoor dome camera.