Woodworking – Process – Mechanical cutting or shaping
Patent
1988-08-15
1989-03-07
Bray, W. Donald
Woodworking
Process
Mechanical cutting or shaping
144 85, 144 87, 1441445R, 144145A, B27M 300
Patent
active
048097551
ABSTRACT:
Apparatus and a method for forming various types of woodworking joints on workpieces are provided. A series of templates are provided that, when utilized with the appropriate cutting bit for a router produce the desired joint configuration. The router is mounted below a support platform with the cutting bit of the router extending upwardly through a central aperture in the support platform. A guide bushing fixed to the support platform surrounds the cutter bit. A selected template is fixed to fence posts that extend upwardly from the template. The fence posts secure a fence to the template. The fence has clamps that clamp a workpiece to the fence so that the workpiece can be positioned over the edge patterns on the template. Handles are secured to the fence posts and the fence. With the workpiece in a proper position over the edge patterns on the template, the template, the fence posts, the fence, the handles, and the workpiece are moved as a unit over the router support platform with the edge pattern of the template in contact with the guide bushing surrounding the router cutting bit. The appropriate joint configuration is thereby cut into the workpiece. By changing the template or by changing the angle of the fence or the position of the workpiece, various joint configurations can be produced. Among the joint configurations that can be produced are through dovetail joints, angled dovetail joints, blind dovetail joints, box joints, splined joints, mock dovetail joints, and angled box joints.
REFERENCES:
patent: 4373562 (1983-02-01), Vernon
patent: 4405004 (1983-09-01), Dicke
patent: 4428408 (1984-01-01), Grisley
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