Diamond dressing tool

Claim 1

THE COMBINATION COMPRISING AN ARBOR HAVING OPPOSED CENTERS AT OPPOSITE ENDS THEREOF, AND A ROTARY DRESSING TOOL MOUNTED ON SAID ARBOR AND COMPRISING A PAIR OF TELESCOPING MEMBERS, SAID ARBOR HAVING AN INTEGRAL RADIALLY EXTENDING SHOULDER, ONE OF SAID DRESSING TOOL MEMBERS ABUTTING SAID SHOULDER, SAID DRESSING TOOL MEMBERS HAVING OPENINGS EXTENDING AXIALLY THERETHROUGH WHEREBY SAID MEMBERS MAY BE POSITIONED ON SAID ARBOR, AND MEANS EXTENDING THROUGH THE OTHER OF SAID DRESSING TOOL MEMBERS TO SAID FIRST-MENTIONED DRESSING TOOL MEMBER INTO SAID SHOULDER TO HOLD SAID DRESSING TOOL IN PROPER RELATION ON SAID ARBOR, EACH MEMBER COMPRISING A BODY HAVING AN ANNULAR RADIALLY EXTENDING DRESSING SURFACE EXTENDING GENERALLY TRANSVERSELY TO THE AXIS OF THE ARBOR, AND A PLURALITY OF CIRCUMFERENTIALLY SPACED ARCUATE SEGMENTS AND INTERVENING COMPLEMENTARY SPACES SAID SEGMENTS OF EACH MEMBER TELESCOPING INTO THE INTERVENING SPACES OF THE OTHER MEMBER, EACH SAID SEGMENT HAVING AN ARCUATE PERIPHERAL DRESSING SURFACE MERGING WITH SAID RADIAL DRESSING SURFACE OF ITS RESPECTIVE MEMBER WHEREBY WHEN SAID MEMBERS ARE TELESCOPED TOGETHER, SAID ARCUATE PERIPHERAL SURFACES OF SAID TELESCOPING MEMBERS ARE POSTIONED ADJACENT ON ANOTHER SO THAT A SUBSTANTIALLY CONTINUOUS DRESSING SURFACE IS PROVIDED BY SAID RADIAL SURFACES AND SAID ARCUATE PERIPHERAL SURFACES, EACH OF SAID DRESSING SURFACES HAVING DIAMONDS EMBEDDED THEREIN, EACH SAID MEMBER HAVING A SUBSTANTIALLY FLAT RADIALLY EXTENDING SEATING SURFACE ON THE END OF EACH SEGMENT AND A COMPLEMENTARY SEATING SURFACE IN ALIGNED RELATION WITH THE SEATING SURFACE OF THE SEGMENTS ON THE OTHER MEMBER, SAID SEATING SURFACES ENGAGING WHEN SAID MEMBERS ARE IN TELESCOPING RELATION, SAID SEGMENTS HAVING ADJACENT SIDE SURFACES WHICH ARE IN CONTACT WHEN SAID MEMBERS ARE IN TELESCOPING RELATION, WHEREBY UPON WEAR OF THE ARCUATE PERIPHERAL SURFACES AND THE RADIAL DRESSING SURFACES, SAID SEATING SURFACES ON THE ENDS OF THE SEGMENTS CAN BE RE-FINISHED TO BRING THE RADIAL DRESSING SURFACES INTO PROPER DIMENSIONAL RELATION TO ONE ANOTHER.