US Patent: 1,983,516 - Combined Protractor, Bevel Gauge, and Mitering Square


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US Patent: 1,983,516

Combined Protractor, Bevel Gauge, and Mitering Square

Patentee:

Harold Ahola (exact or similar names) - Portland, OR

USPTO Classifications:

33/419, 33/423, 33/426

Tool Categories:

layout tools : bevels

layout tools : protractors

Assignees:

Technical Tool Co. - Portland, OR

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 28, 1934
Granted:	Dec. 11, 1934

Patent Pictures:

USPTO (New site tip)
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Report data errors or omissions to steward Ralph Brendler

Description:

This tool uses a spring-loaded locking pin registering in a series of holes in the stock to accurately set an angle for the bevel. It also features a folding second arm to allow it to be used to mark the converse of the angle.