Cutting tool and system for coring a bowl using a lathe

Woodworking – Special-work machine – Tray making

Reexamination Certificate

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Details

C144S365000, C142S056000, C142S001000, C142S049000, C142S042000

Reexamination Certificate

active

11398173

ABSTRACT:
A cutting tool piece is provided including a rear portion and a lead portion, the lead portion including a front section having an upper side angled downwardly and forwardly and a lower side angled upwardly and forwardly to form a transverse lead cutting edge. The rear portion includes a hole to secure the tool piece to a cutting tool and transverse cutting edges extending outwardly from side walls of the front section. A system is also described for cutting a bowl by coring out an interior portion of a wood block by applying the cutting tool which is curved and rotatably mounted to a post. Its lead end with the tool piece attached creates a circular groove. The cutting tool is advanced on a path which curves toward the central axis of the lathe.

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Catalog of Kelton Industries Limited, 1999; pp. 8-10.
Graduate GL Brochure, by Graduate Lathe Company Ltd.—undated but published prior to 2001.
General catalog, 1990, by General Mfg. Co. Ltd., pp. 40-42.
Burrows D, “A New Twist for Turners/Pivoting headstocks simplify the ins and outs of bowls”, Feb. 1, 1993, pp. 82-84.

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