Fecha de publicación: 13/10/1981 Fuente: WIPO "royal booby" Improvements in a system for escaping from an offshore drilling or production platform in an emergency situation which includes a stable floating structure forming a safe haven anchored near but at a safe distance from the platform, an aerial cableway extending between the platform and the haven, and a personnel carrier movable along the cableway. The principal improvement is that the haven is a semi-submersible structure for increased stability.