Knife sharpening device

Details Knife sharpening device Knife sharpening device

1987-05-20

1989-01-24

Olszewski, Robert P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51214, 51285, 76 84, 76 88, B24B 904, B24D 1508

Patent

active

047993359

ABSTRACT:
A knife sharpening device employs one or more guide members which are angularly positionable in relation to a central sharpening surface so that a knife blade may be maintained at a pre-selected angle relative to the sharpening surface during the sharpening process. A pair of sharpening stones are mounted in back-to-back relationship. A guide bar is angularly positionable to define pre-established spacings with respect to opposing sharpening surfaces of the stones to thereby define fixed sharpening angles. A pin/detents locking mechanism is employed for adjustably fixing the angular position of the guide bar. In one embodiment a plurality of guide rods are fixed in eccentric angular relationship with a central columnar sharpening surface to maintain the sharpening angle of a knife blade at a pre-selected angle.

REFERENCES:
patent: 594723 (1897-11-01), Boettcher
patent: 1234945 (1917-07-01), Sparks
patent: 1269898 (1918-06-01), Ball
patent: 1787478 (1931-01-01), Jackson
patent: 2458856 (1949-01-01), Jacobson
patent: 2461690 (1949-02-01), Leong
patent: 4719722 (1988-01-01), Washburn

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