Jacob Leupold

Jacob Leupold (1674-1727)
Jacob Leupold's vacuum pump of 1709, Dresdem museum of Technical Instruments
Illustration about ''Antliae pneumaticae'' from Acta Eruditorum, 1715

Jacob Leupold (22 July 1674 – 12 January 1727) was a German physicist, mathematician, instrument maker, mining commissioner and engineer. He wrote the seminal book Theatrum Machinarum Generale ("The General Theory of Machines").