SWIVEL JOINT APPARATUS AND METHOD FOR UTILITY SUPPLY TO A ROTATABLE BUILDING

摘要

The swivel joint apparatus has a first, fixed member for securing to a fixed base of the building to extend co/axially with a central axis of rotation of the building, and a second member rotatably mounted on the first member for securing to the rotatable part of the building. The first member has a series of spaced annular chambers sealing engagement with the outer casing and a lower end wall with a plurality of ports for connection to fixed utility lines in the base for fluid supply to and from the building, each port connected to a respective annular chamber. The outer casing has a series of axially spaced ports for connection to respective utility lines in the rotatable part of the building, the ports including at least one port communicating with each of the annular chambers.