Safety device acting on an elevation cable where a winch is elevated. (Machine-translation by Google Translate, not legally binding)

摘要

Safety device acting on a lifting cable in which a winch is raised and includes self-tightening clamps of known principle whose jaws can be separated by levers provided with cams under the action of a manual control, characterized in that the manual control is locked in the closing position of the clamps by a sliding member secured to the winch when it is located below the safety device and because the manual control can not be operated to open the clamps except when the winch is in a position close to the safety device and therefore able to maintain the load. (Machine-translation by Google Translate, not legally binding)