(under the class definition) Mechanisms comprising devices in which a unidirectionally biased power member, during at least a portion of its movement, imparts motion to an element which, as a result of such movement, alternately locks and releases the biased member for intermittent operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
526, for lever stops.
565, for controller checks.
SEE OR SEARCH CLASS
185, Motors: Spring, Weight, or Animal Powered,
5, for composite weight motors which are escapement controlled and see the search notes thereunder for related search fields.
