Cavity forming in plastic body
AssigneeCorning Incorporated
InventorsMeryle D. W. Adler, John W. Nelson, Harold G. Shafer, Jr.
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Abstract
An apparatus and method for forming a cavity in a rigid, organic plastic body comprises an abrading tool mounted on a carrier, an air spindle for imparting a rotary motion to the tool, and a second air spindle on which the tool carrier is mounted and which has a force applied to it to move the tool through an arc that passes through the plastic body.
Claims7
A milling machine for forming a cavity in a rigid organic plastic body comprising an abrading tool mounted on a holder, a first means for applying a rotary motion to the tool, and a second means for swinging the tool along a limited arc through the plastic body, the second means comprising an air spindle, a cable subject to a constant force for applying rotary motion to the air spindle, and a motion translating means that is mounted on the air spindle and is operatively associated with the tool holder, whereby the rotary motion of the air spindle is translated into an arcuate motion of the tool holder.
Dependencies are inferred from the claim text.