Disk-enabled actuator

In a disk-enabled actuator of the type in which a rotatable disk director having a peripheral opening therein is normally restricted from free rotation by an adjacent peripheral blocking means, and of the type in which, when a disk of a selected diameter is positioned in the opening so as to extend peripherally outward therefrom, the disk can contact and release the blacking means upon rotation of the director, the improvement comprising:

• the director having a first restricted passageway communicating with the opening which is constructed and arranged such that:
• (a) disks smaller than a selected diameter may pass through the first restricted passageway;
• (b) a first disk of the selected diameter may be retained in the first passageway in a manner such that, upon attempted rotation of the director, the first disk will not release the rotational blocking means, and such that upon insertion of a second disk of substantially the same selected diameter in the director opening the first disk can support the second disk such that the second disk projects peripherally outwards from the director so that upon attempted rotation of the director with both the first and second disks therein the second disk then can release the rotational blocking means;
• and
• the director also having a second passageway extending from the opening which is sized and constructed such that when said first disk is in said first passageway and a disk of below the selected diameter is inserted in the opening, it will pass through the second passageway.