Gear cutting – milling – or planing – Milling – Process
Patent
1995-06-26
1997-04-29
Howell, Daniel W.
Gear cutting, milling, or planing
Milling
Process
408 1R, 408DIG1, B23C 300, B23B 3500
Patent
active
056242158
ABSTRACT:
An apparatus for positioning a bowling ball during a drilling process and method that provides reproducible orientations of the ball for accurately modifying and repeating the drilling process is described. The apparatus affixed a bowling ball while exposing a sufficient portion of a surface of the ball where middle finger, ring finger and thumb holes are to be drilled. The apparatus positions the bowling ball for drilling holes of varying pitch without requiring the ball to be removed from its rigidly affixed position within the apparatus. Holes having severe pitches are easily drilled and reproduced, including oval holes having preselected oval rotations. A computer program converts inputted hand measurements to digitized apparatus movements for positioning the ball prior to drilling a desired hole. Digital encoders indicate apparatus movement that is matched with computer output for ease and repeatability in drilling a ball.
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Bajune David E.
Boucher John N.
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