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US Patent: 122,402
Improvement in boring-machines
Patentee:
Zacariah C. Phillips - Allegheny City, PA

USPTO Classifications:
144/106, 408/111

Tool Categories:
metalworking machines : drilling and boring
woodworking machines : wood drilling and boring

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Unknown

Patent Dates:
Granted: Jan. 02, 1872

Patent Pictures: [ 1 | 2 ]
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Description:
An example of this boring machine design has been seen on eBay. It carries this patent date but is otherwise unlabeled. That boring machine does not provide a separate seat, and the awkward horizontal handle shown in the patent drawing has been replaced by the more usual pair of vertically-revolving handles. These improvements were covered in patent 158,809.

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