US Patent: 3,311,024
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| Rotary Actuator Power Drawbolt for Machine Tool Spindles
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Patentee:
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| Jesse Daugherty (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. 01, 1966 |
| Granted: |
Mar. 28, 1967 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| This application is a continuation of my application filed 09 Feb., 1965 and now abandoned. This invention represents an improvement over the power draw-bolt disclosed in my co-pending application filed 16 Jan., 1964, which issued as U.S. Patent No. 3,254,567 on 07 June, 1966.
Claim:
The present invention relates to machine tools and, more specifically, to a rotary actuator power draw-bolt for securing a tool in the power driven spindle of a machine tool. The invention finds particular, but not exclusive, utility when embodied in a machine tool which includes an automatic tool changing apparatus. |
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