US Patent: 22,913 - Instrument for taking altitude of the sun


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US Patent: 22,913

Instrument for taking altitude of the sun

Patentee:

Frederick Yeiser (exact or similar names) - Lexington, KY

USPTO Classifications:

33/268

Tool Categories:

specialty tools : surveying apparatus

Assignees:

None

Manufacturer:

Frederick Yeiser - Lexington, KY

Sturm, Steffens & Co. - Indianapolis, IN

John Hougham - Franklin, IN

Witnesses:

Berry F. Graves

Z. Gibbons

Patent Dates:
Granted:	Feb. 08, 1859

Patent Pictures:

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Description:

The invention is a surveying instrument that used the position of the sun to determine latitude and longitude. This patent spawned Additional Improvement patents, which was a rarely used patent type that was less onerous to obtain than regular utility patents: see patents AI247 and AI289. The example shown seems to most closely resemble patent AI247