Silverwork and jewelry : a text-book for students and workers in metal (1912)
Wilson, H, Bisei, Unno · New York : D. Appleton · leaf 253
and just large enough to receivehalf the thickness of the model; laythe model on its back in the hollow, andwith some very fine sand fill in under-neath the model, so that every part of it 245 Piece- is well supported—until, in fact, you haveMolding taken a partial impression of the surface.Now… … and blow away all that does not now ad-here. You will now proceed to make thefalse cores. These are movable portionsof the molds so arranged as to avoid theundercutting (fig. 156). Again dust themodel Awith a little finely powdered Frenchchalk, and brush the superfluity away withthe camels-hair…
Silverwork · Jewelry
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