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 360
d that part of the castingcored out. The molder may well beconsulted as to whether the projectingpart should be cored or made loose. Insuch work as casting machine ways,the machinist should be consulted as towhether the projecting part shall bemade loose or be given a good draft,Fig. 577. 296.… … Fig. 578. Using aBurning Iron. 356 WOODWORK FOR SECONDARY SCHOOLS. they will not interfere with the drawing of the same, onthe side which is opposite the parting line, especially onthe drag face where the mold will be free of floating sand.
Woodwork (Manual training)
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