US Patent: 48,376
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Improvement in Saws
Hacksaw
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Patentee:
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| Alfred Dawes (exact or similar names) - Waltham, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jun. 27, 1865 |
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Russ Allen.
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Description: |
| Two opposing handles with a metal frame where the blade is attached to a screw shaft to enable it to be held and tightened. Purpose is intended to introduce a new type of saw for metals.
Earliest patent for blade tensioning in 513 subclass |
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