US Patent: 723,237 - Combined Calipers, Compasses, Dividers, &c.


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US Patent: 723,237

Combined Calipers, Compasses, Dividers, &c.

Patentee:

Harry A.J. Brown (exact or similar names) - Allegheny, PA

USPTO Classifications:

33/558.2

Tool Categories:

layout tools : calipers

layout tools : compasses

Assignees:

Homer C. Drake - New Castle, PA

Manufacturer:

Not known to have been produced

Witnesses:

Wm. J. Eberle

D. E. Gilchrist

Calvin B.H. Tower, Jr.

J. Wilton MacElroy

Patent Dates:
Applied:	May 24, 1902
Granted:	Mar. 24, 1903

Patent Pictures:

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Description:

These calipers feature three different kinds of points mounted on a pivoting arm at the end of each claiper leg. By swapping the various points, the tool can be used as an inside, outside, or hemaphrodite caliper as well as as a compass or divider.