20140271977 | LOCKING APPARATUS FOR COMMON PLATE STEM ACTUATOR - A locking apparatus for a machine having multiple stems which axially reciprocate with respect to a stationary unit by linkage with a reciprocating common plate. The locking apparatus includes: (a) a first locking assembly capable of alternatively locking and unlocking one of the stems to the common plate; and (b) a second locking assembly capable of alternatively locking and unlocking one of the stems to the stationary unit. The second locking mechanism is configured so that, when the first locking assembly locks a stem to the common plate, the second locking mechanism automatically unlocks that stem from the stationary unit, and when the first locking assembly is unlocked from the common plate, the second locking mechanism automatically locks that stem to the stationary unit. | 09-18-2014 |