Woodworking – Special-work machine
Patent
1979-01-05
1981-04-28
Bray, W. Donald
Woodworking
Special-work machine
144134A, 144323, 144 49, 409228, 409229, B27C 500
Patent
active
042639476
ABSTRACT:
This machine cuts and profiles large panels, as plywood, hardboard or similar materials, on one side to provide a large panel having a flat back surface and a profiled front surface, said front surface characterized by a plurality of longitudinally extending, side by side, slightly inclined flat surfaces separated by approximately perpendicular ledges or shoulders of narrow width, thereby imparting to the panel the appearance of lap siding when applied to the exterior wall of a building. This machine comprises devices for moving the panel in a lengthwise direction and across a plurality of driven planer heads or routers, which cut away thin layers of the front panel surface. Also, the machine is provided with devices for shaping the edges of each panel for edge matching these edges with interfitting parts which may be of shiplap or tongue-and-groove type.
REFERENCES:
patent: 2722957 (1955-11-01), Marvosh
patent: 3602276 (1971-08-01), Kvalheim
patent: 3625269 (1971-12-01), Holan
patent: 3703198 (1972-11-01), Luebs et al.
patent: 3756295 (1973-09-01), Halop
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