US Patent: 391,655
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| Tap or Die Stock
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Patentee:
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| Benjamin F. Smith (exact or similar names) - Somerville, MA |
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Patent Dates:
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| Applied: |
Jan. 09, 1888 |
| Granted: |
Oct. 23, 1888 |
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Patent Pictures:
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Benjamin F. Smith patent October 23, 1888 |
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Stan Schulz
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Description: |
| Ratchet action provided by spring-loaded rollers in wedge-shaped chambers. The tool includes provision for a central brace pad, for interchangeable wrench sockets, tap holder, adjustable jaw socket, etc. These attachments have "tang" ends and are held by a set screw. One of the handles is detachable to allow working as a ratchet in constricted locations.
Produced as the SMITH FRICTION DRILL and socket wrench. |
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