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US Patent: 43,854
Calipers
Combination Calipers and Dividers
Patentee:
C. Jillson - Worcester, MA

USPTO Classifications:
33/801

Tool Categories:
layout tools : calipers
layout tools : compasses : dividers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jno. A. Dana
N. W. Heilbrun
J. W. Patten
Chas. M. Ruggles

Patent Dates:
Granted: Aug. 16, 1864

Patent Pictures:
USPTO pdf tiff
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Description:
This patent covers a design for a combination divider and outside caliper. The main claim in the patent is the bending of the caliper legs to allow the points to meet exactly, thus facilitating measurement.

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