US Patent: 1,002,019
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| Thread Gage
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Patentee:
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| John A. Adell (exact or similar names) - Orange, MA |
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Patent Dates:
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| Applied: |
May 09, 1910 |
| Granted: |
Aug. 29, 1911 |
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Joel Havens
"Vintage Machinery" entry for L. S. Starrett Co.
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Description: |
| Patent for the idea of locking the gage leaves on the gage but it does not claim a specific construction configuration. According to the text, conventional construction required that the user of a thread gage to hold the the leaf with the thumb and finger, getting in the way when checking threaded holes.
Utilized on Starrett's No 473 Thread Gage |
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