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 34
angle PATTERN MAKING 19 touch the semicircular curve at its extremities, the right angle orcorner will touch the arc at some point, as h, e, or A, and the anglesahc, defj and ghi will all be right angles. To this kind of plane the objection is often made that it abradesand wears off the corners of… … Fig. 34. Core-Box Plane Fig. 35. Profile Cut by Core-Box Plane worked, from a center Hne on the face of the block, describing on each end of theblock a semicircle of the required radius; connect the extremes of the two end arcsby straight Unes on the face of the block, as shown in Fig. 36. Two very…
Patternmaking
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