US Patent: 28,859 - Carpenter's Square


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US Patent: 28,859

Carpenter's Square

Patentee:

James Hathen (exact or similar names) - Philadelphia, PA

USPTO Classifications:

33/480

Tool Categories:

layout tools : squares : try squares

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Thos. Shoemaker

Charles Disston

Patent Dates:
Granted:	Jun. 26, 1860

Patent Pictures:

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Description:

Carpenter's square with a provision for readjusting the blade to square. An "adjusting clamp" is used to move the blade back into alignment through use of a screw and rod assembly. Of significant interest is that both witnesses are tied the Henry Disston empire.