US Patent: 3,469,496
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| Quill Support for Machine Tool Spindles
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Patentees:
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| Walter L. McCann (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI |
| Earl E. Johnson (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: |
Nov. 18, 1966 |
| Granted: |
Sep. 30, 1969 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| Abstract:
A headstock assembly having a quill type spindle support mounted in the headstock on hydrostatic bearings which permit substantially friction-free axial movement of the quill while providing rigid radial support capable of maintaining accurate axial alignment of the quill and spindle when the quill is overhanging said bearing support by as much as one-half the length of the quill and the spindle is axially extended with respect to the quill. |
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