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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 158

An illustration from Wood pattern-making; the fundamental principles and elementary practice of the art, 1906, leaf 158
l occupyin the mold. I.OOSE PIECES It is almost impossible to make some patterns with-out loose pieces, however objectionable they may be. MlTCELIvANEOUS EXAMPI^ES 143 They are, however, in some cases at least, preferable tocores. When a choice must be made between a core anda loose piece the…

Patternmaking

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