APPARATUS FOR REMOVING EXCESS OF MATERIAL PROJECTING FROM THE TRUE PERIPHERY OF A BOWLING BALL WITHOUT MODIFYING SUCH TRUE PERIPHERY

An improved method of and improved apparatus for removing all undesirable material projecting outwardly beyond the true round periphery of a bowling ball. There are many bowlers who desire to have the finger openings changed after they have made use of a ball for a period of time. This change in the position, size and/or relationship of finger openings is generally accomplished by plugging up one or more of the openings in the ball and then relocating or reboring openings to meet the bowler's desire. In carrying out this process it is frequently done by filling up the original finger opening with a plug driven thereinto or by filling the same with material allowed to harden therein. In order to be sure of filling the opening completely for the modification or relocation thereof, it is common practice to overfill the same so that an excess of material will normally project outwardly beyond the true round periphery of the ball and then to remove the excess of said material to be sure the true round periphery is maintained. This disclosure relates to a most desirable method of removing such excess quickly, accurately and without disturbing the true periphery of the ball.