US Patent: 788,941
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| Auger
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Patentee:
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| Azariah Yeldon Pearl (exact or similar names) - West Lebanon, ME |
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Patent Dates:
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| Applied: |
Apr. 18, 1903 |
| Granted: |
May 02, 1905 |
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Kirk Eppler
"Vintage Machinery" entry for Pearl Square Hole Auger Manufacturing Co.
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Description: |
| An example is reported, labeled "MADE BY THE PEARL SQUARE AUGER MFG CO. NEW YORK. USA. PAT OCT 3 '93, AUG 11 '96, JUNE 18 '98." These dates correspond, respectively, to patents, 505,844, 606,575, and 788,941. The present invention provides improved chip removal: a tube rises vertically from the guide-block to an orifice near the top of the square frame. The drive shank passes through the center of that tube. |
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