San Francisco : Architect and Engineer, Inc · leaf 444
engineers, esti-mators and operation men. It has164 magazine size pages and givesfull information on every phase ofthe concrete pump. One chapteris devoted to general Pumocreteplacing methods. The machine, itsadaptability, limitations and ac-cessories are described with typi-cal construction… … of pounds of copper will be savedfor products more essential to thewar effort. This saving was the re-sult of substituting various plasticsand malleable iron for the morecritical brass used in the compon-ent parts of the peacetime product.According to the manufacturer, thenew valve has been…
Architecture · Building
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