US Patent: 189,737 - Improvement in Shades for Try-Squares


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US Patent: 189,737

Improvement in Shades for Try-Squares

Patentee:

Charles B. Hopkins (exact or similar names) - Topeka, KS

USPTO Classifications:

33/415, 33/DIG.16

Tool Categories:

layout tools : squares : try squares

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Charles B. Smith

Elias Shull

Patent Dates:
Applied:	Mar. 13, 1877
Granted:	Apr. 17, 1877

Patent Pictures:

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Description:

Just as the title implies, this patent is for an accessory to be used with try squares. The intent is for the device to shade the blade, especially when working outdoors, to facilitate seeing where light is showing through between the try square blade and the material when checking a surface for square.