Rival hinge device for ladder (Machine-translation by Google Translate, not legally binding)

摘要

Coupling device for ladder access to the interior of a cistern tank, which allows adaptation to different diameters of manholes and eliminates the problem of possible tripping when walking over the top of the tank, characterized in that it consists of a hook (2) having a straight rod which ends in a welded sleeve (4) which abuts an existing cap (3) at the ends of the tube forming the ladder (1) in which it is located, preventing said bushing (3) the hook (2) is out, but in turn allows rotation in either direction and sense to conform to the shape of the mouth of the tank and can be placed in coplanar position to the body of the ladder in its location transportation tank above the tank. (Machine-translation by Google Translate, not legally binding)