US Patent: 60,690
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| Improvement in Combined Square and Level
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Patentee:
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| G. L. Chamberlain (exact or similar names) - Marietta, OH |
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Patent Dates:
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| Granted: |
Jan. 01, 1867 |
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Patent Pictures:
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Ralph Brendler
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Description: |
| This is a combination tool that adds a pivoting arm to a standard level, allowing it to be used as a square or bevel. The arm locks from a clever screw-activated mechanism on the side of the level.
Known examples of the production pieces do not use the patented locking mechanism, instead using a more traditional thumbscrew on the arm. They do, however, use the cute and clever heart-shaped cutouts on the arm, where the point of the heart is the indicia. |
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