Determining size of drops in fuel mixture of internal combustion engines
A 1926 technical report from the NASA Technical Reports Server, a set of engineering diagrams for measuring droplet size in the fuel mixture of internal combustion engines, aimed at engine researchers. The two pictures are schematic line drawings: an optical layout with a light path, lens, mirrors and a circular viewing chamber, and an electrical wiring diagram with a conduit, resistors, meters and a 110 volt supply. A designer might borrow their clean, labelled technical-diagram style for scientific or mechanical graphics.
