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US Patent: 592,026
Door-Butt Gage
Patentee:
Van B. Staples - Manchester, NH

USPTO Classifications:
33/44

Tool Categories:
layout tools : marking gauges : butt gauges
layout tools : marking gauges : wheeled marking gauges

Assignees:
None

Manufacturer:
Unknown

Witnesses:
J. B. Thurston
A. E. Boisvert
Emmit H. Tarnisch
A. L. Kavanaugh

Patent Dates:
Applied: Feb. 23, 1897
Granted: Oct. 19, 1897

Patent Pictures: [ 1 | 2 ]
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Description:
The Staples Patent gage builds off the same basic idea as the Traut's 1892 Patent(481,515), but in a more compact and robust package. Instead of the traditional marking gage shape chosen by Traut, Staples used a cast iron block with two wheeled markers on adjustable posts. The block was also machined such that it could also be used as a square to mark the sides of the butt mortise.

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