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US Patent: 877,407
Cutter-head for planing-machines
Patentee:
Ernst Carstens - Nuremberg, Germany

USPTO Classifications:
144/225

Tool Categories:
woodworking machines : machine and tool cutters : cutterheads

Assignees:
None

Manufacturer:
Oliver Machinery Co. - Grand Rapids, MI

Witnesses:
Max Schneider
Alex Wiele

Patent Dates:
Applied: Dec. 28, 1905
Granted: Jan. 21, 1908

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for Oliver Machinery Co.
Description:
Circular cutter-head for jointers and planers. Appears to have been exclusively licensed to Oliver Machinery Co., who put it on their own machines, supplied it as an OEM part to other makers, and sold it as an after-market upgrade. This cutter-head was a big safety advance, but now considered dangerous because head can fly apart if bolts fail.

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