US Patent: 1,535,452
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| Grinding Machine
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Patentee:
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| Prentice Conradson (exact or similar names) - Evansville, Rock County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 15, 1923 |
| Granted: |
Apr. 28, 1925 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| Claim:
The general object of the invention is to provide a spindle-carriage having novel and improved means for driving the spindle, for starting and stopping rotation of the spindle, and for adjusting the spindle to different positions about a vertical axis to permit of grinding taper work. |
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