Summary

This item from the Delta Iron Works Archive (listed in the Office Records series), owing to its handwritten contents, has been given the descriptive title Foundry Techniques, but also features the word Founding as a heading on one of the preliminary pages.

The majority of these handwritten notes appear to be someone's research notes transcribing or summarising foundry techniques published in The Modern Foundry, three clippings from which have been included in this binder. Various dates handwritten throughout this manuscript range from 1936-1961 with most dates in the late 1930s, often in reference to editions of The Foundry.

For example, the writer has noted:

"The Foundry November 1936 P37 recommends an alloy Cast Iron containing 14% nickel, 7% copper & 2% chromium" (PDF page 55)

"Chill castings should be poured hot and quickly to prevent cold shuts and orange peel effect. The Foundry March 1938 P.41" (PDF page 57)

"Defects in casting. Pinholes may be caused by damp coarse sand. Fine sand not likely to be damped down as excessively as coarse. From the Modern Foundry June 1936 P4" (PDF page 75).

This binder also features some small drawings of castings and calculations for metal mixtures.