US Patent: 590
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| Saw for Sawing Ice
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Patentee:
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| John Barker (exact or similar names) - Cambridge, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Feb. 03, 1838 |
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Russ Allen.
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Description: |
| Patented item is the design and construction of the teeth. The front edge of the tooth is longer than the rear edge and the rear angle is sharper than the front angle. The front edge of the tooth is thicker than the rear edge. Finally, the at the end of the saw is an "imperfect tooth" without a cutting edge and used to serve as a shoulder for the first cutting tooth. |
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