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US Patent: 687,913
Gage
Slitting Gage
Patentee:
Walter S. Bird - Burdett, WV

USPTO Classifications:
33/44

Tool Categories:
knives and cutters : slitting gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Harry Ellis Chandler
T. P. Pratt
A. G. Escue
W. M. Carpenter

Patent Dates:
Applied: May 03, 1901
Granted: Dec. 03, 1901

Patent Pictures:
USPTO pdf tiff
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Description:
This is a fascinating slitting gage in the shape of a plow plane. It uses two adjustable-depth slitting kives to cut, and a wheeled cutter as a nicker.

The fence adjustment is also quite unusual, in that it uses a spring loaded pin referencing holes drilled in the arm to maintain alignment of the arms.

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