US Patent: 1,304,714
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Tool-driver
Spiral Screwdriver
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Patentee:
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| Laroy S. Starrett (exact or similar names) - Athol, MA |
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Patent Dates:
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| Applied: |
Dec. 16, 1914 |
| Granted: |
May 27, 1919 |
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Patent Pictures:
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Steve Gosselin
"Vintage Machinery" entry for L. S. Starrett Co.
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Description: |
| From Clifford Fales, Sample marked, "THE L.S. STARRETT CO. / ATHOL, MASS. U.S.A. / NO. 801. / PAT. APPLIED FOR". This screwdriver is a most unusual tool coming from the L.S. Starrett Co., maker of machinist tools. The mechanism operates as you would expect in RH, LH & fixed modes which are set by rotating the body tube. It was made with a spindle locking ring at the end of the tube (similar to the YANKEE spiral-ratchet drivers) which is intended to lock the spindle in the closed position. |
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