Nonmetallic Diaphragms for Instruments
A 1925 technical report on nonmetallic diaphragms for scientific instruments, issued by a NASA technical reports archive and compiled for engineers and instrument makers. Its pictures show mounted rubber and other nonmetallic diaphragms, a sectioned mounting apparatus with labelled parts, and a deflection graph of negative and positive deflections. A designer might take from them the precise, diagram-like language of labelled cutaway sections and plotted curves for technical layouts.
