| 20090200256 | SAFETY DEVICE FOR CABLE-LIFTING APPARATUS - A safety device for application to cable lifting apparatus, where the apparatus comprises a mobile tackle to which, via a system of cables, a grappling element for a load is connected, the safety device being characterised in that it is provided with means for detecting a displacement from a vertical of at least a cable of the cables supporting the grappling element for the load, alarm means of acoustic and/or visual and/or lifting operation shutdown type, which are associated to the means for detecting the displacement from the vertical, being destined to enter into function if the displacement from the vertical of the at least a cable exceeds at least a first predetermined threshold. | 08-13-2009 |
