Machine tool mechanism for the formation of circular contours

Claim 1

IN A MACHINE TOOL A FIRST MEMBER TO SUPPORT AN OBJECT TO BE FORMED, A SECOND MEMBER TO SUPPORT A FORMING TOOL, SAID MEMBERS MOUNTED FOR RELATIVE MOVEMENT IN A PLANE BETWEEN THE OBJECT TO BE FORMED AND THE FORMING TOOL INCLUDING RELATIVE TRANSVERSE MOVEMENT, RELATIVE TO AND FRO MOVEMENT, AND RELATIVE SWIVELING MOVEMENT, MEANS DEFINING AT LEAST ONE PAIR OF TRANSVERSELY SPACED GUIDES FIXED RELATIVE TO ONE OF SAID MEMBERS, SAID GUIDES DEFINING TRANSVERSELY SPACED GUIDE POINTS, AND AT LEAST TWO V-SHAPED FOLLOWERS HAVING ARMS INTERSECTING AT A VERTEX, SAID VERTEX PIVOTALLY CONNECTED AT SPACED APART PIVOT AXES TO THE OTHER OF SAID MEMBERS, EACH OF THE FOLLOWER ARMS ENGAGED WITH A GUIDE TO DETERMINE THE RELATIVE TO AND FRO MOVEMENT AND THE RELATIVE SWIVELING MOVEMENT BETWEEN SAID MEMBERS AS RELATIVE TRANSVERSE MOVEMENT IS EFFECTED THEREBETWEEN.