US Patent: 423,154
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| Gaging Rod
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Patentee:
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| Arthur Marcus Hill (exact or similar names) - St. Stephen, NB Canada |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 10, 1887 |
| Granted: |
Mar. 11, 1890 |
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Russ Allen.
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Description: |
| Gage has two parts - a rod with the usual graduations and a dart which pivots which has both a straight edge and a slightly curved edge.
This arrangement supposedly improves the accuracy in measuring casks by preventing the measurement from being taken within the recess at the intersection of the head and stave. |
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