Method for retarding the dulling of wood-machining blades

Details Method for retarding the dulling of wood-machining blades Method for retarding the dulling of wood-machining blades

1983-10-04

1986-05-13

Bray, W. D.

Woodworking

Slicer

Rotary disk

83 16, 83171, 144162R, 241 95, 2412921, 361233, B27C 100

Patent

active

045880077

ABSTRACT:
A method for limiting the dulling of wood-machining blades wherein the blades are insulated from the frame of a woodworking machine tool and a negative voltage is applied to the blades during operation. The blade ring of the chipper is insulated from the rotating rotor of the chipper so that between the blade ring and the rotor there is generated a differential voltage the rotor carrying a positive voltage and the blade ring a negative voltage. By virtue of the invention, the blades need not be replaced or sharpened as often as those of prior art chippers.

REFERENCES:
patent: Re12715 (1907-11-01), Dawkins
patent: 855389 (1907-05-01), Dawkins
patent: 3823880 (1974-07-01), Urschel
patent: 4301846 (1981-11-01), Berggren
patent: 4453437 (1984-06-01), Ask

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