The dyeing of textile fabrics
A technical manual on dyeing textile fabrics, written by J. J. Hummel and published in London by Cassell & Company in 1890 for dyers and textile trade workers. Its pictures are line engravings of machinery: a steam-driven dyeing apparatus with pulleys and levers, a pair of geared rollers with a drum below, a vat with heating coils and a tilted stirrer, and a piston engine with flywheels, showing how mechanical structures were drawn with labelled parts and cross-sections a designer could adapt for industrial diagrams.
