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US Patent: 189,311
Improvement in Bevels
Patentee:
John F. Klinglesmith - St. Louis, MO

USPTO Classifications:
33/421

Tool Categories:
layout tools : squares : bevel squares
layout tools : squares

Assignees:
John F. Klinglesmith - St. Louis, MO
Conrad Farner - St. Louis, MO

Manufacturer:
C. Farner Co. - St. Louis, MO

Witnesses:
Saml. S. Boyd
Chas. D. Moody

Patent Dates:
Applied: Apr. 28, 1876
Granted: Apr. 10, 1877

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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Description:
Utilizes a straight edge with a mathematical derived curved slot on one end and a pin riding in a straight slot along one edge of the square. The use of the curved slot ensures exact alignment to the degree/pitch desired which is set by tightening the clamp at the curved slot. Known example is reportedly marked "C. Farn Co" which can be surmised to relate to the 1/2 assignee, Conrad Farner.

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