Scientific American, Vol. 5, No. 29 (1850)
Scientific American, volume 5, number 29, is a weekly American periodical of 1850 printed in New York for a general readership of inventors, mechanics and tradesmen. Its pages carry wood-engraved diagrams of mechanical and musical devices, including a rotary valve, a pump-like chamber with a plunger and funnel, a reed-instrument section, and a parlor melodeon. Designers may take from them the clean, schematic line work of nineteenth-century patent-style technical drawing, with labelled letters and arrows used to explain parts.
