GUIDING APPARATUS FOR SERVICING-DUCTS FOR THE SMALL, ROTATABLE LID OF A NUCLEAR REACTOR

摘要

Tubes or cables designated as ducts and extending through a movable component which is capable of rotational motion about a vertical axis are supported between a fixed point located externally of the movable component and a second point which is located on the vertical axis of rotation of the component and constitutes the extremity of the supporting means. The portions of ducts located between the extremity of the supporting means and the center of rotation of the movable component are guided and maintained in uniformly spaced relation on a ruled surface of revolution about the axis of said movable component so that the duct portions thus form a bundle-type assembly. Means are further provided for securing the lower extremity of the guiding means to the movable component at the center of rotation of this latter.