US Patent: 2,924,152
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| Drawbolt for Machine Tools
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Patentee:
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| William D. Zettler (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: |
Dec. 24, 1956 |
| Granted: |
Feb. 09, 1960 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| Claim:
The present invention relates to a mechanism for locking a tool element or the like in a tool spindle, and finds particular but not exclusive use in horizontal boring, drilling and milling machines. More specifically, the present invention relates to a power draw-bolt for selectively locking and releasing a tool in a machine tool spindle. |
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