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US Patent: 28,859
Carpenter's Square
Patentee:
James Hathen - 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.

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