US Patent: 3,200,921 - Controls for Machine Tools


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US Patent: 3,200,921

Controls for Machine Tools

Patentee:

John C. Hollis (exact or similar names) - Milwaukee, Milwaukee County, WI

USPTO Classifications:

192/142R, 341/142, 377/17, 409/165, 409/80, 82/122

Tool Categories:

metalworking machines : machine tool controls

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:	Feb. 15, 1961
Granted:	Aug. 17, 1965

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:

Claim:

This invention relates to improvements in systems for causing machine tools to execute automatically repetitive cycles of machining operations made up of a plurality of successive machining steps.