US Patent: 41,546 - Improvement in drills


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US Patent: 41,546

Improvement in drills

Patentee:

William Stivers (exact or similar names) - New York, NY

USPTO Classifications:

74/842

Tool Categories:

metalworking machines : drilling and boring : drill presses

woodworking machines : wood drilling and boring : drill presses

Assignees:

None

Manufacturer:

William Stivers - New York, NY

Witnesses:

M. M. Livingston

Thomas S. J. Douglas

Patent Dates:
Granted:	Feb. 09, 1864

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for William Stivers

Description:

The work is pushed upwards into the drill by a rack-and-pinion mechanism, the weight of the lever providing some downward force. An 1866 advertisement confirms that the inventor manufactured his drill for sale, priced at $16.