US Patent: 213,321
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| Tube-Expander
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Patentee:
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| Dennis Bushor (exact or similar names) - Effingham, Effingham County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 24, 1878 |
| Granted: |
Mar. 18, 1879 |
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Joel Havens
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Description: |
| Claim:
The object of this invention is to produce, for the use of manufacturers of steam-boilers and other similar machinery, a simple and efficient instrument whereby the connection of the tubes to the flue-sheet can be effected more conveniently and perfectly than heretofore. |
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