Patent ID: 8959694
Filing Date: 2015-02-24
Classification: B63B,E01D

Abstract:
1. A bridge apparatus mounted on a support structure and spanning between the support structure and a second structure, the bridge comprising a platform having an inboard end and an outboard end, wherein the inboard end of the platform is pivotally connected to the support structure, and wherein the outboard end of the platform is connected to the second structure, wherein the platform is supported by at least one line extending between the support structure and the platform, wherein the support structure has a capstan connected to the support structure and disposed above the platform, and wherein the at least one line extends from the platform to the capstan, and from the capstan to a counterweight, wherein at least a portion of the platform is moveable relative to the support structure in a vertical plane by movement of said at least one line, and wherein the capstan is motorised and pays out and recovers the line to raise and lower the platform toward and away from the second structure in a vertical plane around a pivot axis of the connection between the platform and the support structure.