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US Patent: 2,885,915
Machine Tool Table
Patentee:
Garner H. Schurger (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:
269/20, 269/55, 269/69, 384/100, 439/13, 74/813L

Tool Categories:
metalworking machines : rotary tables

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: Aug. 16, 1956
Granted: May 12, 1959

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:
This application is a continuation-in-part of co-pending application, filed 16 February, 1955, now Patent No. 2,787,175.

Claim:

Machine tool work supporting tables must often be made conveniently movable, both rotatable and liftable for rotation, and yet capable of being locked in a precisely predetermined position. A common example of such a workholder is the rotary table or platen used with machine tools such as horizontal boring machines and the like. The performance of machining operations on large, heavy workpieces is complicated by the difficulty involved in orienting such workpieces with respect to the machine tool spindle or cutting head. Such workpieces are generally supported on a table which can be moved to position the work and which can be clamped securely in place to hold the workpiece stationary during the machining operation.

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