| 摘要 |
<p>A device for protection and handling of electric feed cables (20-20') for mobile use, especially for mobile means (26-26') for lifting and moving loads such as cranes, bridge cranes and the like installed along harbour docks, comprises a mobile frame (10-10'), made of metal or other suitable material, provided with a central tower (30-30') connected to one of said mobile means and with opposite arms (32-32'), arranged in alignment on a part of a trench duct or raceway (12-12') buried in the ground with the top open front thereof substantially aligned with the surface level (14-14') and screened by a flexible tape (16-16'); at least one of the opposite arms (32-32') is provided with means (36,40) for lifting the flexible tape (16-16'), arranged at the top and/or at the bottom of the same, and for guiding and centring the frame (10-10') in cross direction relative to the raceway (12-12').</p> |
