(under subclass 476.7) Subject matter in which the guide is shifted to move the winding point by a link having an end connected to a driven element (e.g., crank) that rotates at least 360 degrees in a single direction about a substantially fixed axis such that the regions of contact between the link and drive element are substantially unvarying during operation and the end of the link orbits the rotational axis of the driven element. The connection between the link and guide may be direct or indirect.
