US Patent: RE187
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| Improvement in machinery for making moldings
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Patentee:
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| Alfred T. Serrell (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jan. 07, 1851 |
| Reissue Information: |
| Reissue of 5,575 (May 16, 1848) |
| Reissued as RE243 (Jun. 21, 1853) |
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Jeff Joslin
Vintage Machinery entry for Alfred T. Serrell
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Description: |
| This reissue of the important Serrell molder patent is to make a broader claim than the original patent, which covered the combination of three things: a feed mechanism, rotating cutters, and a stationary plane. Other people took his ideas and implemented two out of the three to avoid infringing. This reissued patent covers the feed works in combination with either the rotating cutters or the stationary planer. Serrell's real innovation was his feed mechanism that gave the flexibility to choose where on the work-piece to engage the feed, so that the marks made by the feed mechanism could be limited to areas that would be removed by the action of cutting the molding. Since Serrell did not claim the feedworks by itself, there must have been some prior art, perhaps for an application unrelated to making wood moldings."I do not claim to have invented parallel grooved feed-rollers to force in the material being planed; but I do not know of any previous machine in which an angular roller has been applied, of either one or more conical rings or disks, that operated to feed material of varying angular forms into the machine by contact with the parts that have to be removed by the cutters; neither do I claim the rotary cutter for forming mouldings, nor a common moulding plane; but I do not know of any machine in which these two have been employed together—the cutter to give the shape, and the moulding plane to finish the surface..."According to the 1873 "Subject-matter index of patents for inventions issued by the United States Patent Office", this patent was granted an extension. It was also re-reissued to disclaim any conflicts with the Woodworth planer patent RE71. |
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