Tools for driving thin-walled metal ferrules

Claim 1

A TOOL FOR DRIVING AN ELONGATED SUBSTANTIALLY CYLINDRICAL THIN-WALLED METAL FERRULE INTO FRICTIONAL ENGAGEMENT WITH THE ELONGATED SUBSTANTIALLY CYLINDRICAL WALL OF A HOLE PROVIDED IN A METAL WORKPIECE, WHEREIN THE FERRULE HAS A LENGTH SUBSTANTIALLY GREATER THAN THE DIAMETER THEREOF; SAID TOOL COMPRISING AN ELONGATED SHANK, AN ELONGATED FORWARDLY PROJECTING SUBSTANTIALLY CYLINDRICAL ARBOR CARRIED BY THE FRONT END OF SAID SHANK AND HAVING A LENGTH THAT IS SUBSTANTIALLY GREATER THAN THE DIAMETER THEREOF, A SHOULDER ARRANGED BETWEEN THE FRONT END OF SAID SHANK AND THE REAR END OF SAID ARBOR PROVIDING A SUBSTANTIALLY ANNULAR ANVIL, THE EXTERNAL DIAMETER OF SAID ARBOR BEING RELATED TO THE INTERNAL DIAMETER OF THE OPENING PROVIDED THROUGH THE METAL FERRULE SO THAT SAID ARBOR IS ADAPTED TO BE INSERTED INTO THE OPENING MENTIONED AND TO SUPPORT THE METAL FERRULE THEREUPON WITH THE METAL FERRULE IN SURROUNDING RELATION THEREWITH, THE LENGTH OF SAID ARBOR BEING RELATED TO THAT OF THE METAL FERRULE SO THAT THE REAR END OF THE METAL FERRULE ENGAGES SAID ANVIL AND THE FRONT END OF THE METAL FERRULE TERMINATES ADJACENT TO AND SOMEWHAT REARWARDLY OF THE FRONT END OF SAID ARBOR WHEN THE METAL FERRULE IS IN ITS SUPPORTED POSITION UPON SAID ARBOR, A BLOCK CARRIED BY SAID SHANK AND MOUNTED THEREUPON FOR LONGITUDINAL SLIDING MOVEMENTS WITH RESPECT THERETO, AND A PAIR OF LONGITUDINALLY SPACED-APART STOP MEANS FOR POSITIVELY ESTABLISHING A FRONT POSITION OF SAID BLOCK WITH RESPECT TO SAID SHANK AND A REAR POSITION OF SAID BLOCK WITH RESPECT TO SAID SHANK, THE FRONT END OF SAID BLOCK BEING DISPOSED ADJACENT TO AND SOMEWHAT REARWARDLY OF THE FRONT END OF SAID ARBOR WHEN SAID BLOCK OCCUPIES ITS FRONT POSITION AND THE FRONT END OF SAID BLOCK BEIN DISPOSED ADJACENT TO AND SOMEWHAT REARWARDLY OF THE REAR END OF SAID ARBOR WHEN SAID BLOCK OCCUPIES ITS REAR POSITION, SAID BLOCK HAVING A SUBSTANTIALLY CYLINDRICAL BORE IN THE FRONT PORTION THEREOF, THE INTERNAL DIAMETER OF SAID BORE BEING RELATED TO THE EXTERNAL DIAMETER OF THE METAL FERRULE SO THAT SAID BLOCK IS READILY SLIDABLE OVER THE METAL FERRULE IN ITS SUPPORTED POSITION UPON SAID ARBOR AND SO THAT SAID BLOCK IN ANY POSITION THEREOF DISPOSED FORWARDLY OF ITS REAR POSITION SUPPORTS THE ADJACENT EXTERIOR SURFACE OF THE METAL FERRULE IN ITS SUPPORTED POSITION UPON SAID ARBOR, WHEREBY THE FRONT END OF THE METAL FERRULE IN ITS SUPPORTED POSITION UPON SAID ARBOR MAY BE INSERTED INTO THE OUTER END OF THE HOLE PROVIDED IN THE METAL WORKPIECE AND SIMULTANEOUSLY THE FRONT END OF SAID BLOCK IN ITS FRONT POSITION MAY ENGAGE THE ADJACENT SURFACE OF THE METAL WORKPIECE, AND WHEREBY THEREAFTER SAID SHANK MAY BE MOVED TOWARD THE METAL WORKPIECE TO CAUSE SAID ANVIL TO DRIVE THE METAL FERRULE INTO FRICTIONAL ENGAGEMENT WITH THE WALL OF THE HOLE PROVIDED IN THE METAL WORKPIECE AND TO CAUSE SAID BLOCK TO SLIDE FROM ITS FRONT POSITION INTO ITS REAR POSITION WITH THE RESULT THAT THE INTERIOR SURFACE OF THE METAL FERRULE IS SUPPORTED BY SAID ARBOR AND THE EXTERIOR SURFACE OF THE METAL FERRULE IS SUPPORTED BY SAID BLOCK DURING THE DRIVING MOVEMENT OF THE METAL FERRULE INTO FRICTIONAL ENGAGEMENT WITH THE WALL OF THE HOLE PROVIDED IN THE METAL WORKPIECE.