US Patent: 2,885,915
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Machine Tool Table
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Patentee:
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Garner H. Schurger (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Aug. 16, 1956 |
Granted: |
May 12, 1959 |
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Joel Havens "Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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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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