US Patent: 230,338
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| Pencil-sharpener
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Patentee:
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| Henry C. Rice (exact or similar names) - Easthampton, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 24, 1880 |
| Granted: |
Jul. 20, 1880 |
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Jeff Joslin
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Description: |
| This patent is mentioned in the specification for patent 350,330 as an example of a pencil sharpener with sun-and-planet gearing that cuts transversely across the grain which led to tearout of the wood and ensuing cracking and breaking of the lead, with the result that it failed in the marketplace. On top of this objection, Rice's design has additional complexity and cost in having separate cutters for the pencil lead and the wood. |
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