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US Patent: 4,384,397
Tool Changing Machining Center With Swing Spindle
Patentee:
James Nelson (exact or similar names) - Appleton, Outagamie County, WI, WI

USPTO Classifications:
414/736, 483/41, 483/45, 483/68, 483/902

Tool Categories:
metalworking machines : metalworking machine mechanisms : tool changers and storage mechanisms

Assignees:
Giddings & Lewis, Inc. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 22, 1980
Granted: May 24, 1983

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:

An improved tool changing machining center adapted for boring, drilling, milling, tapping and tool changing operations under numerical control. The machining center, which may be built in both vertical and horizontal spindle configurations, has an automatic tool changer including a tool storage matrix, a swing spindle transfer device mounted on the matrix, and a two-handed transfer arm mounted on the headstock. It operates with current commercial tapered shank toolholders and utilizes the existing power draw-bolt engagement structure of the toolholders to secure them during tool change.

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