US Patent: 372,456
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| Saw-Filing Attachment
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Patentee:
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| William Cook (exact or similar names) - New York, NY |
| USPTO Classifications: |
| 76/36 |
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Patent Dates:
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| Applied: |
May 21, 1887 |
| Granted: |
Nov. 01, 1887 |
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Ralph Brendler
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Description: |
| This is a small pendulum level, designed to be attached to the end of a triangular file. It is used to ensure a consistent angle when filing saw teeth.
It was produced as "The Gem" saw filer, and marked with the patent date. The production pieces differ slightly from the patent drawing, including the addition of a small cast handle hehind the indicator |
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