Woodwork for secondary schools; a text-book for high schools and colleges, prevocational and elementary industrial schools (1916)
Griffith, Ira Samuel, 1874-1924 · Peoria, Ill., Manual Arts Press · leaf 345
Fig. 542. Balanced Core. heel print which makes the parting in molding simpler.Originally, straight, horizontal cores were laid into theimpressions made by the stop-off prints and the remain-ing space stopped over or tightly filled in with molding 340 WOODWORK FOR SECONDARY SCHOOLS, sand. Special… … ^Parting Fig. 544. Stop-Off Core-Print. of the core. The sides of the prints are drafted just doublethe amount given drag- vertical prints, for if the top orcope of the print were to be driven off center a little, backdraft wotild occur and it would be difficult to draw thepattern from the mold.…
Woodwork (Manual training)
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