US Patent: 3,874,809 - Apparatus for Machining Surface of Revolution Having Discontinuites


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US Patent: 3,874,809

Apparatus for Machining Surface of Revolution Having Discontinuites

Patentee:

Robert S. Hahn (exact or similar names) - Northboro, Worcester County, MA

USPTO Classifications:

408/12, 408/3, 408/9, 82/1.11, 82/143, 82/900

Tool Categories:

metalworking machines : metalworking machine mechanisms

Assignees:

Cincinnati Milacron-Heald, Corp. - Worcester, Worcester County, MA

Manufacturer:

Not known to have been produced

Witnesses:

none listed

Patent Dates:
Applied:	Dec. 13, 1973
Granted:	Apr. 01, 1975

Patent Pictures:

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"Vintage Machinery" entry for Heald Machine Co.

Description:

This application is a continuation of an application filed 05 Jan., 1973, which was a continuation-in-part of an application filed 01 Nov., 1971, which in turn, was a continuation of an application filed 17 Nov., 1969, all now abandoned.

Abstract:

The present invention relates to a machining apparatus and, more particularly, to a machine tool for use in generating a surface on a workpiece by use of tools formed of ceramic or other hard materials, such as carbide.