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US Patent: 17,618
Method of Holding and Adjusting Plane-Irons in Their Stocks
Cutter Adjustment with a Frog for Wooden Planes
Patentee:
Willard W. Chipman - Lowell, MA

USPTO Classifications:
30/492

Tool Categories:
woodworking tools : planes : plane adjustment mechanisms : plane cutter adjustments
woodworking tools : planes : bench planes

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
N. Wright
O. E. Cushing

Patent Dates:
Granted: Jun. 23, 1857

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
A cutter adjustment mechanism for wooden planes. It is let into the stock and has two thumbscrews which project from the sides of the plane. The thumbscrews adjust a cutter holding means that the inventor calls "frogs".

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