(under the class definition) Apparatus comprising a working chamber having a fluid conduit connected thereto, said working chamber being rotatable about its longitudinal axis relative to said fluid conduit, the connection between said working chamber and fluid conduit being so arranged as to allow constant communication between said conduit and working chamber, irrespective of the position of said working chamber relative to said conduit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119, for a pivotally mounted moving cylinder in which a fluid conduit extends through the pivoted connection.
