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Wood pattern-making; the fundamental principles and elementary practice of the art (1906)

Purfield, Horace Traiton · Ypsilanti, Mich., The Scharf tag, label & box co. · leaf 144

An illustration from Wood pattern-making; the fundamental principles and elementary practice of the art, 1906, leaf 144 — Fig. 70. Fig. 71. Fig. 70. The circular part (d) can be made on the lathe;the way is clearly shown at Fig. 71. The grooves PIPE FITTINGS 129 marked (b) may be made in one piece of lumber, andmade, of course, with the core box plane. If it is desiredto make this very strong, a piece of board is… … Fig. 73. Fig. 72. the foundry, the pattern must be made double. Theeconomy resulting is great, as it will take but very littlemore of the molders time to make the mold for both thanfor one. Besides the core can be more easily set and held 130 WOOD PATTERN MAKING in place if two are made in the one…

Patternmaking

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