Mounting structure

Claim 1

IN APPARATUS FOR MOUNTING A WORK IMPLEMENT UPON A ROTATABLE SHAFT SO AS TO BE ROTATABLY DRIVEN THEREBY WITH ANY SELECTED POINT ON THE WORK IMPLEMENT DESCRIBING A CIRCULAR PATH CLOSELY APPROXIMATING A CONDITION OF PERFECT CONCENTRICITY AND COAXIALITY RELATIVE TO THE ROTATIONAL AXIS OF SUCH SHAFT, A SHAFT ADAPTER FOR EFFECTIVELY CONVERTING SUCH SHAFT TO A TAPERED SHAFT AND INCLUDING A DRIVER HAVING A TAPERED BORE ADAPTED TO RECEIVE SUCH SHAFT THEREIN AND HAVING ALSO A FACE DEFINING A PLANE SUBSTANTIALLY NORMAL TO THE ROTATIONAL AXIS OF SUCH SHAFT WHEN SAID DRIVER IS PROPERLY POSITIONED THEREON, SAID DRIVER BEING EQUIPPED WITH A MOUNTING FLANGE EXTENDING AXIALLY OUTWARDLY THEREFROM IN COAXIAL RELATION WITH SAID BORE AND TAPERING INWARDLY FROM SIDE FACE TOWARD SUCH AXIS OF ROTATION, A SEGMENTED COLLET STRUCTURE ADAPTED TO BE MOUNTED UPON SUCH SHAFT AND BEING RECEIVABLE WITHIN SAID TAPERED BORE FOR CENTERING SAID DRIVER UPON SUCH SHAFT IN COAXIAL RELATION WITH THE ROTATIONAL AXIS THEREOF, FASTENER STRUCTURE HAVING COMPONENTS THEREOF INTERCONNECTABLY ENGAGEABLE WITH SAID DRIVER AND COLLET STRUCTURE TO FORCE THE LATTER INTO SAID TAPERED BORE AND INTO FRICTIONAL ENGAGEMENT WITH THE WALLS THEREOF AND WITH SUCH SHAFT TO EFFECT SUCH CENTERING OF SAID DRIVER, A MOUNTING ELEMENT HAVING AN OPENING THERETHROUGH TAPERED IN COMPLEMENTARY RELATION WITH SAID MOUNTING FLANGE FOR RECEIPT THEREON AND BEING ADAPTED TO RECEIVE AND SUPPORT SUCH WORK IMPLEMENT THEREON IN COAXIAL RELATION THEREWITH AND SO AS TO PERMIT RELATIVE MOVEMENTS THEREBETWEEN ALONG SUCH ROTATIONAL AXIS, STOP STRUCTURE CARRIED BY SAID MOUNTING ELEMENT TO LIMIT MOVEMENT OF SUCH WORK IMPLEMENT IN ONE AXIAL DIRECTION RELATIVE TO SAID MOUNTING ELEMENT, AND LOCKING STRUCTURE ADAPTED TO BE MOUNTED UPON SUCH SHAFT IN ENGAGEMENT WITH SUCH WORK IMPLEMENT AND BEING INTERCONNECTABLY OPERATIVE THEREBETWEEN TO DISPLACE SAID MOUNTING ELEMENT INTO TIGHT FRICTIONAL ENGAGEMENT WITH SAID MOUNTING FLANGE AND THEREBY COAXIALLY CENTER SAID MOUNTING ELEMENT RELATIVE TO THE AXIS OF ROTATION OF SUCH SHAFT AND TO DISPLACE SUCH WORK IMPLEMENT INTO TIGHT FRICTIONAL ENGAGEMENT WITH THE FACE OF SAID DRIVER SO THAT THE WORK IMPLEMENT IS ROTATABLY DRIVEN THEREBY.