Metal-plate work : its patterns and their geometry, also, notes on metals, and rules in mensuration for the use of tin, iron, and zinc plate workers, coppersmiths, boiler-makers, and others (1887)
Millis, C. T. (Charles Thomas) · London ; New York : E. & F.N. Spon · leaf 176
he centre whence the arc is drawn. Through C, B, and 0 draw C C", B B", and 0 A" parallel to D D" and cutting A" D" in points C", B", and A". Also through D" draw a line D"A' perpendicular to DD" and cutting the lines just drawn in C, B' and A'. Make c 2 equal to C c ; B' 1 equal to B h, and A' 0… … Mark off on A' A', right and left of D", D"C', C'B', and B A' respectively equal to the distances between D" and 2, 2 and 1, and 1 and 0 (Fig. 48) ; and through C, B', and A', right and left of D" draw indefinite lines each parallel to D D", Make C C right and left of D D" equal to C C (Fig. 48) ;…
Plating · Metallurgy
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