(under subclass 431) Subject matter including a lost motion connection between the actuator and the cam or cam follower to permit with the cam or cam follower to rapidly complete its movement independently of the actuator once the high point of the cam is past.
(1) Note. Normally the cam follower is in the form of a spring with the cam in the form of a square.
SEE OR SEARCH THIS CLASS, SUBCLASS:
469, for similar devices wherein the cam snaps in one direction only.