GB Patent: GB-186,602,001
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| Machine for cutting dovetail joints
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Patentee:
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| Samuel Thomas Armstrong (exact or similar names) - New York, NY |
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Patent Dates:
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| Granted: |
Aug. 02, 1866 |
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Patent Pictures:
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From 1873 catalog |
Espacenet patent
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Jeff Joslin
"Vintage Machinery" entry for Thomas Robinson & Son
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Description: |
| This novel and important invention uses helical saw blades attached to cutter blocks that rotate about 150 RPM to cut pins and tails. The dovetails could be through, half-blind or even full-bind. The machine's design demanded precise and heavy construction but the result was a dovetail more precisely cut than any previous machine-cut dovetails. We have not been able to find an equivalent US patent. In any event, the machine was a sensation at the Paris Exhibition of 1867. That machine was built by Thomas Robinson & Son of England and demonstrated by Mr. Armstrong himself. Robinson also imported the machines into the US and Canada. |
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