Instrument for Measuring Engine Clearance Volumes
A 1920 technical report from the NASA Technical Reports Server, describing an instrument for measuring engine clearance volumes, presented as a numbered engineering document for engineers and researchers. The single picture is a photograph of two labelled laboratory devices, Figure 1 and Figure 2, with brass fittings, a glass cylinder, rubber tubing and a valve, shown in sepia against a plain background. A designer might take its dense mechanical arrangement and vintage apparatus look as reference for industrial equipment imagery.
