Experimental investigations concerning the limits of detonation in gaseous mixtures. Part I
A 1930 technical report from the NASA Technical Reports Server, a scientific record of experiments on detonation limits in gas mixtures, written for engineers and physicists. The one picture is a rotated lettered apparatus diagram of a copper tube with a manometer, valves, a steel tube, and an electrical ignition setup, labelled A through N. A designer might take only its clean line-drawing style and labelled schematic layout as a reference for technical diagrams.
