(under the class definition) Apparatus including a movable member adapted to actuate the control mechanism through its movement, and a detent member adapted to engage with the movable member before actuation occurs; wherein one member is adapted to shift into position for locking with the other member as actuation is attempted, unless a check is present.
(1) Note. In apparatus found herein, the detent member does not normally engage the movable member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237, for apparatus wherein a plurality of checks prevent the locking of a movable part by a detent.
247, for apparatus wherein a locked part is released by a check.
