US Patent: 1,200,047
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| Work-Holder for Screw-Threading Machines
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Patentee:
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| Alfred M. Thompson (exact or similar names) - Newark, Essex County, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 10, 1915 |
| Granted: |
Oct. 03, 1916 |
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Joel Havens
"Vintage Machinery" entry for A. Morris Thompson
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Description: |
| Claim:
A work-holder for machines of the class described including, in combination a hollow spindle adapted to entirely inclose the work, a collet in said spindle, means for clamping the collet on the work, means for feeding the spindle longitudinally and means for limiting the longitudinal movement of the spindle. |
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