US Patent: 79,012
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| Improvement in Augers
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Patentee:
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| Nathaniel C. Sanford (exact or similar names) - Meriden, CT |
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Patent Dates:
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| Granted: |
Jun. 16, 1868 |
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Patent Pictures:
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1 | 2
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Jeff Joslin (dm)
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Description: |
| "This invention consists in forming an auger with two or more cutting-lips, commencing from the first or usual cutting-lip, and passing around the last turn or twist of the helical part of the auger, and each successive lip being at a greater distance from the axial centre of the auger than the preceding, and in a different horizontal plane, whereby the paths of the several lips are different and distinct, and the auger may be operated more easily." |
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