CA Patent: CA-1,568
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Improvements in saw mills
Swartwout's Improved Oscillating Gang Saw
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Patentee:
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| John Henry Swartwout (exact or similar names) - Toronto, ON Canada |
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Patent Dates:
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| Granted: |
Jul. 19, 1872 |
CIPO Data
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Jeff Joslin
"Vintage Machinery" entry for Dickey, Neill & Co.
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Description: |
| The inventor was described as a "gentleman".A full-page text ad in the 1871 Lovell's Newfoundland Directory from Dickey, Neill & Co., has the following. "Swartwout's Oscillating Gang. We would respectfully call the attention of all engaged in the manufacture of Lumber to this valuable improvement in Vertical Saw Hangings. By its peculiar construction the Saw, on its downward motion, strikes at the bottom of the log first and continues an even pressing cut until the pitman reaches the forward centre, when the lower end recedes and the top is carried forward by inclined Slides, thus producing an even Rotary Cut. This Gang will carry a heavier feed with less power than any Mill working upon straight lines, and will increase the capacity at least 25 per cent." |
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