US Patent: 3,001,558 - Interchangeable wood cutter head


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US Patent: 3,001,558

Interchangeable wood cutter head

Patentee:

William W. Showler (exact or similar names) - Greensboro, NC

USPTO Classifications:

144/218, 144/240

Tool Categories:

woodworking machines : machine and tool cutters : cutterheads

Assignees:

None

Manufacturer:

Concentro Service Corp. - Greenboro, NC

Witnesses:

Unknown

Patent Dates:
Granted:	Sep. 26, 1961

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for Concentro Service Corp.

Description:

This patent covers "hub mounted molder and shaper heads used in the furniture industry". See also Canada patent CA-643,022. The Concentro Service Corp. manufactured planer cutterheads that were apparently based on this invention. The cutterheads are made in segments, and each segment has carbide knives permanently attached. This type of cutterhead can go a very long time between sharpening, but to sharpen it the head must be removed from the machine, which probably explains why very few such heads have survived. They do appear to have worked very well, other than the sharpening hassle.