US Patent: 26,716


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US Patent: 26,716

Calipers

Patentee:

Charles D. Sutton (exact or similar names) - Kensico, NY

USPTO Classifications:

33/797

Tool Categories:

layout tools : calipers

trade specific : wheelwright

Assignees:

None

Manufacturer:

Unknown

Witnesses:

Oscar B. Sutton

E. Chichester Fisher

Patent Dates:
Granted:	Jan. 03, 1860

Patent Pictures: [ 1 | 2 ]

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Description:

This is a set of calipers designed to easily determine the circumference of the piece being measured. One the measurement is taken, a graduated scale can be slid into place that allows the circumference to be read directly.

This tool is particularly mentioned to be useful for wheelwrights, so I assume it is fairly large. Featured in the March 17, 1860 issue of Scientific American magazine.