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US Patent: 43,360
Improvement in Bench-Planes
Segmented Circular Plane
Patentee:
Stephen Williams - Philadelphia, PA

USPTO Classifications:
30/478, 30/484

Tool Categories:
woodworking tools : planes : circular planes

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Henry McNeill
Henry Benjamin

Patent Dates:
Granted: Jun. 28, 1864

Patent Pictures:
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Description:
Williams calls this his "universal smoothing plane" because it can be used for curved as well as straight surfaces. Nowadays we would call this a circular plane. It is constructed by a number of segments bound by a band and screw. Loosening the screw allows the segments to be moved so that their lower ends define the shape of the surface to be planed.

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