US Patent: 3,383,957 - Position Feedback Drive Mechanism for Machine Tools


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US Patent: 3,383,957

Position Feedback Drive Mechanism for Machine Tools

Patentee:

Walter L. McCann (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:

408/16, 82/1.4

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking power transmission

Assignees:

Giddings & Lewis Machine Tool Co. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jun. 17, 1965
Granted:	May 21, 1968

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.

Description:

Abstract:

A position feedback drive mechanism for a machine tool employing a differential gear assembly with one input driven by the rotating tool head and the other input driven by the tool support such that the output is proportional to movements of the tool support with respect to the axis of the tool head and thereby serves as an accurate indication of the position of the tool.