Cylindrical cutting tool
OwnerRobert S. Smithinventor
Life of this patent
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Abstract
An apparatus, operating automatically, for developing a very fine finish on a disk surface which includes a cylindrical toolbit whose cutting edge can be accurately and frequently or automatically rotated so that an unused length of edge can be presented to maintain sharpness and whose shape is amenable to cutting the disk surface on a first pass and burnishing on the staggered return pass and wherein lubricant is fed through a hole in the center of the toolbit to a point between the chip and toolbit surface for the purpose of developing the fine finish together with a turntable for automatically feeding disks to the toolbit to be machined and then withdrawing the disk and storing it.
Claims2
A device for machining materials said device including a tool bit comprising a circular cylindrical rod having an external cylindrical surface, a first end with an internal first surface, a circular cutting edge formed at the intersection of said external surface and said internal first surface, a second end with a second surface, a hole extending longitudinally from said second surface to said first surface and means for supplying lubricating fluid to said cutting edge, said means including an elongated stem located in said hole, said stem having first and second stem ends connected by a bore, said first stem end having a round side and cap located within a recess formed by the internal surface formed by the internal surface of said rod, an opening in said round side adjacent said cap, said opening communicating with said bore, and said second stem end protruding from said hole at the second surface of said rod, whereby lubricating fluid may be supplied to said bore at said first stem end to lubricate material being machined at said cutting edge.
Dependencies are inferred from the claim text.