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 87
rpendicular to A B, and make G F equal to the given height of the frustum. Join FB', then F B' is the true length of B'G. Through B' draw B'H perpendicular to B' B and equal to the given height. Join H B, then H B is the true length of B B' one of the edges of the frustum. To draw the pattern. Draw… … B A (Fig. 36a). Through B' draw B' A' parallel to B A and equal to B' A' (Fig. 36a), and join A A' ; then B A A' B' will be the pattern of one face of the frustum. The adjacent face B C C B' is drawn in similar manner. The fig. shows the pattern for two faces only of the equal-tapering body,…
Plating · Metallurgy
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
