Woodworking – Special-work machine – Combined
Patent
1976-04-20
1978-01-10
Hinson, Harrison L.
Woodworking
Special-work machine
Combined
83 5, 83485, 83488, 144134R, 144136H, 144218, 144322, 269 56, B27C 500
Patent
active
040673685
ABSTRACT:
An elongated base is provided including elongated guide structure extending therealong. A router assembly is supported from the guide structure for guided movement therealong in a predetermined path and the base includes support structure for supporting an elongated log in position extending along a center axis generally paralleling and adjacent the aforementioned predetermined path. The router assembly includes cutting blade structure operative to form a convex generally semi-cylindrical surface on the adjacent side of a log supported from the support structure and the latter is operative to engage and support the log from the semi-cylindrical surface formed thereon after the surface is formed and the log is rotated 180.degree. about its longitudinal axis with the log then supported in position for forming a second semi-cylindrical surface on the side of the log then opposing the path of movement of the router assembly with the second semi-cylindrical surface having an axis of curvature coinciding with the axis of curvature of the first formed semi-cylindrical surface. The cutter blades of the router assembly further include blade portions operative to form shallow keyways in the central portions of the semi-cylindrical surfaces formed thereby.
REFERENCES:
patent: 1543165 (1925-06-01), Kessler
patent: 1630173 (1927-05-01), Dumont
patent: 1797646 (1931-03-01), Gardner
patent: 3517576 (1970-06-01), Hilty et al.
patent: 3718958 (1973-03-01), Brucker
Bray W. D.
Hinson Harrison L.
Jacobson Harvey B.
O#Brien Clarence A.
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