Key of maneuver of negative nuts directly with command remote of the movement of the reversible clamp. (Machine-translation by Google Translate, not legally binding)

摘要

Actuator with directly inaccessible nuts, with remote control of the movement of the reversible jaw, characterized in that it carries coaxially to its bar or body, a mobile actuating device in rotation, which at its upper point, directly or by means of transmission devices, with the reversible clamp seated in free articulation on one of the body. (Machine-translation by Google Translate, not legally binding)