US Patent: 356,892
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| Micrometer Depth Gage
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Patentee:
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| Joseph B. Renshaw (exact or similar names) - Hartford, CT |
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Patent Dates:
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| Applied: |
May 10, 1886 |
| Granted: |
Feb. 01, 1887 |
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Patent Pictures:
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Joel Havens
Martin J. Donnelly Antique Tools
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Description: |
| This gage is to be used by machinists when making grooves or other recesses; and it may to beset to the depth of one recess and then be employed to determine when other recesses have reached the same depth; or it maybe set to vary one one-thousandth of an inch or any other number of thousandths of an inch from a particular depth, and then be employed to determine when other recesses have reached such variant depth.
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