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 140
d corner of the drawing. This ring is cut into quarters, and thefour pieces e, e, e, and e make the quarter turns for the two halves ofthe double pattern. The ends, including the core prints and connecting tenons, areturned in one piece, as shown in Fig. 212, the stock for which isprepared, with… … Fig. 214. Part of CoreBox as Turned carefully bored to receive the tenons which are then glued in posi-tion and further strengthened by a wooden screw. Core Box. In Fig. 213 the core box for this double pattern isshown, and, as will be seen, the most diffi-cult part of the work can be done in…
Patternmaking
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