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US Patent: 291,728
Joiner's Marking-Gage
Patentee:
Ebenezer Hester (exact or similar names) - Unionville, CT

USPTO Classifications:
310/249, 33/42, 403/355, 403/376

Tool Categories:
layout tools : marking gauges

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Martin L. Parsons
Mary L. Parsons
Fred G. Dieterich
Wm. Sectser

Patent Dates:
Applied: Nov. 26, 1883
Granted: Jan. 08, 1884

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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Report data errors or omissions to steward Ralph Brendler
Description:
This patent covers a very simple locking mechanism for the arm of a marking gage. The thumbscrew pulls up a notched rod, which bears on the arm to lock it in place. Very simple, easy to produce, and works well.

I do not know if this piece was every produced commercially, but the same basic idea was improved upon in Lucius Barret's widely produced 1894 patent (530468).

Update: example found marked with the application date

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