Gauges

Claim 1

A GAUGE THAT CAN BE USED TO INDICATE THE RADIAL DISTANCE BETWEEN THE CUTTING EDGE OF A CUTTER CARRIED BY A BORING BAR AND THE GEOMETRIC AXIS OF THAT BORING BAR AND THAT CAN THUS ELIMINATE "CUT AND TRY" BORING AND THAT COMPRISES A SUPPORT HAVING TWO SURFACES THEREON THAT ARE SIMULTANEOUSLY ENGAGEABLE WITH CIRCUMFERENTIALLY-SPACED PORTIONS OF THE PERIPHERY OF SAID BORING BAR, SAID SURFACES BEING INCLINED RELATIVE TO EACH OTHER TO DEFINE A V-SHAPED RECESS IN THE BASE OF SAID SUPPORT, SAID SURFACES COACTING TO SUBTEND AN OBTUSE DIHEDRAL ANGLE, SAID SURFACES BEING CUT AWAY TO DEFINE A SECOND RECESS AT RIGHT ANGLES TO SAID V-SHAPED RECESS, SAID SUPPORT HAVING A PROJECTION THAT OVERLIES SAID SECOND RECESS, AND AN INDICATOR CARRIED BY SAID PROJECTION OF SAID SUPPORT, SAID SURFACES BEING POSITIONED SO THE SINE OF ONE HALF OF SAID DIHEDRAL ANGLE IS SUBSTANTIALLY EQUAL TO UNITY DIVIDED BY ONE AND TWO TENTHS WHEREBY THE APEX OF SAID DIHEDRAL ANGLE IS SPACED BEYOND SAID PERIPHERY OF SAID BORING BAR A DISTANCE THAT IS SUBSTANTIALLY EQUAL TO ONE TENTH OF THE DIAMETER OF SAID BORING BAR WHENEVER SAID SURFACES AR SIMULTANEOUSLY PLACED IN ENGAGEMENT WITH SAID CIRCUMFERENTIALLY-SPACED PORTIONS OF SAID PERIPHERY OF SAID BORING BAR, SAID DIAMETER OF SAID BORING BAR BEING SUCH THAT THE DISTANCE BETWEEN THE GEOMETRIC CENTER OF SAID BORING BAR AND SAID APEX OF SAID DIHEDRAL ANGLE IS AN EVEN DECIMAL WHEN SAID SURFACES SIMULTANEOUSLY ENGAGE SAID CIRCUMFERENTIALLY-SPACED PORTIONS OF SAID PERIPHERY OF SAID BORING BAR, SAID INDICATOR HAVING A POINTER AND A DIAL AND HAVING A PLUNGER THAT IS MOVABLE RELATIVE TO THE APEX OF SAID DIHEDRAL ANGLE, SAID PLUNGER BEING MOUNTED TO BISECT SAID DIHEDRAL ANGLE, THE CONTACT POINT OF SAID PLUNGER OF SAID INDICATOR BEING DISPOSABLE IN ENGAGEMENT WITH THE CUTTING EDGE OF SAID CUTTER, SAID CONTACT POINT OF SAID PLUNGER OF SAID INDICATOR BEING ALINED WITH SAID APEX OF SAID DIHEDRAL ANGLE WHEN SAID POINTER OF SAID INDICATOR IS AT THE INITIAL ZERO REFERENCE POINT OF SAID DIAL, SAID PLUNGER THEREAFTER BEING MOVABLE OUTWARDLY BY OUTWARD MOVEMENT OF SAID CUTTING EDGE OF SAID CUTTER TO MOVE SAID POINTER RELATIVE TO SAID DIAL TO INDICATE HOW FAR SAID CUTTING EDGE OF SAID CUTTER IS DISPOSED RADIALLY OUTWARDLY BEYOND SAID APEX OF SAID DIHEDRAL ANGLE.

Claim 3

THE METHOD OF SETTING THE CUTTING EDGE OF A CUTTER CARRIED BY A BORING BAR THAT COMPRISES ESTABLISHING A POINT THAT IS SPACED FROM THE PERIPHERY OF SAID BORING BAR A DISTANCE SUBSTANTIALLY EQUAL TO ONE TENTH OF THE DIAMETER OF SAID BORING BAR, AND THEREAFTER MOVING THE CUTTING EDGE OF SAID CUTTER OUTWARDLY BEYOND SAID POINT WHATEVER DISTANCE IS NEEDED TO ATTAIN THE REQUIRED RADIAL SETTING OF SAID CUTTING EDGE OF SAID CUTTER.

Claim 4

THE METHOD OF SETTING THE CUTTING EDGE OF A CUTTER CARRIED BY A BORING BAR THAT COMPRISES ESTABLISHING A POINT THAT IS SPACED FROM THE PERIPHERY OF SAID BORING BAR A DISTANCE SUBSTANTIALLY EQUAL TO ONE TENTH OF THE DIAMETER OF SAID BORING BAR, AND THEREAFTER MOVING THE CUTTING EDGE OF SAID CUTTER OUTWARDLY BEYOND SAID POINT WHATEVER DISTANCE IS NEEDED TO ATTAIN THE REQUIRED RADIAL SETTING OF SAID CUTTING EDGE OF SAID CUTTER.