(under subclass 196) Apparatus in which a unitary cylinder has a first internal working face actuated by motive fluid to urge the cylinder in one direction of movement and has a second working face extending outwardly or formed exteriorly thereof, said second face being a piston, the faces forming portions of separate working chambers and being urged by motive fluid in the same or different directions simultaneously or at different times.
SEE OR SEARCH THIS CLASS, SUBCLASS:
167+, for expansible chamber motors having separately controlled plural chambers extensible as a unit wherein one of the chambers may be formed by a moving cylinder.
