US Patent: 780,305
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| Wrench
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Patentee:
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| Henry H. Riggin (exact or similar names) - Altoona, PA |
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Patent Dates:
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| Applied: |
Feb. 04, 1904 |
| Granted: |
Jan. 17, 1905 |
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Patent Pictures:
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Henry H. Riggin patent January 17, 1905 |
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Stan Schulz
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Description: |
| The movable jaw is reversible, with a smooth face for nuts and a toothed face for pipe. The movable jaw's position is set by a screw-activated clamping block engaging rack teeth on the main shank.
The patent appears to match the RIGG COMBINATION WRENCH produced by the GARLOCK PACKING CO. of Palmyra, NY in 1905. |
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