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US Patent: 1,223,132
Lumber Tester
Patentees:
Charles J. Zigler (exact or similar names) - Chicago, IL
William P. Holden (exact or similar names) - Chicago, IL

USPTO Classifications:
33/494, 33/567, 33/702

Tool Categories:
rules : rule graduations

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William C. J. Utes
Catherine McGinn

Patent Dates:
Applied: May 11, 1914
Granted: Apr. 17, 1917

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Russ Allen.
Description:
Lumber tester that compares the width of a piece of lumber after drying. Practability seem limited and would require a different scale for each species as well as a specific width of lumber must be used to remain within the limits of the scale adjustment.

Note that commercially dry was 3 to 5% and cabinet dry is 2% to 3%.

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