Forming a cylindrically shaped hole in a laminated wooden beam

Details Forming a cylindrically shaped hole in a laminated wooden beam Forming a cylindrically shaped hole in a laminated wooden beam

1983-02-28

1984-12-04

Bray, W. D.

Woodworking

Process

Securing

144365, 156257, B27D 100

Patent

active

044858604

ABSTRACT:
A process for forming a cylindrically shaped hole in a laminated wooden beam comprised of two or more individual wooden members. Prior to laminating the individual wooden members, the location of the cylindrically shaped hole is established. A pilot bore is then made in the wooden member established by the desired location of the cylindrically shaped hole and the individual wooden members are laminated such that the pilot bore is located proximate the interface of adjacent individual wooden members at the location determined by the to-be-formed cylindrically shaped hole. The hole is then formed by guiding a drill bit in a path established by the pilot bore.

REFERENCES:
patent: 419558 (1890-01-01), Reeves
patent: 2301800 (1942-11-01), Bersie

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