Pattern making; a practical treatise for the pattern maker on wood-working and wood turning, tools and equipment, construction of simple and complicated patterns, modern molding machines and molding practice (1921)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 33
Fig. 31. Improved Rabbet Plane … Fig. 32. Round Plane Fig. 33. Hollow Plane tool will work accurately a concave semicircle up to 10 inches indiameter. The core-box plane is constructed upon the principle that ifthe sides of a right angle lie upon the extremities of the diameter ofa circle, the vertex of the right angle will lie…
Patternmaking
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