US Patent: 134,296
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| Grinding Machines
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Patentee:
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| George W. Libbey (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Dec. 24, 1872 |
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Joel Havens
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Description: |
| Howson & son - patent attorneys
My invention relates to that class of grinding-machines in which, a revolving grindstone or other grinding-disk is employed and my invention consists in combining with the reciprocating rest of the machine a flexible guide-bar, by the adjustment of which a straight or curved cutting-edge may be imparted to a plane-iron, chisel, or other cutting instrument. My invention also consists of a reciprocating rest, constructed in the peculiar manner fully described hereafter, for presenting the tool to the grinding-disk. |
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