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 (1916)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 34
riangle PATTERN MAKING 19 touch the semicircular curve at its extremities, the right angle or corner will touch the arc at some point, as b, e, or h, and the angles abc, deff and g hi will all be right angles. To this kind of plane the objection is often made that it abrades and wears off the… … Fig. 34. Core-Box Plane Fig. 35. Profile Cut by Core-Box Plane worked, from a center line 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 lines on the face of the block, as shown in Fig. 36. Two…
Patternmaking
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