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 354
Lathe. 291. Split Patterns; Dowels.—For the convenienceof the molder many patterns are split, or parted, in such a way as to make it easyto withdraw them fromthe mold. The two partsare jointed together anddoweled. The dowel-pinsare used to center splitpatterns and core-boxes.They may be made… … Fig. 562. Gear Blank Pattern. 350 WOODWORK FOR SECONDARY SCHOOLS. Fig. 563. BrassDowel. use of a dowel shaper. Most shops carry in stock wood and brass doweling. Brass dowels, Fig. 563, are more durable than wood pins and permit a more accurate centering of the parts. Wood i:)ins are more practical…
Woodwork (Manual training)
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