ng lesslumber-. The parts for the core prints are built up first,and then the lags for the rest of the pattern are fitted an CONSTRUCTIONAI. JOINTS 61 glued and screwed to these, as is indicated by the figure.Should the body of the cylinder be long, two or moresemicircular discs must be used to… … Fig. 30. Fig. 31. When annular patterns of six inches or more indiameter are wanted they are made by what is known asbuilding up Witll segments. This is illustrated by Fig. 32,and when properly done makes a very strong construc-tion. The several pieces should be cut from the boardin such a way that…
Patternmaking
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