https://c8.alamy.com/comp/PBT5FK/this-illustration-dates-to-the-1870s-and-shows-nasmyths-steam-hammer-james-nasmyth-was-a-scottish-engineer-who-gained-fame-for-his-development-of-the-steam-hammer-he-was-co-founder-of-nasmyth-gaskell-and-company-manufacturers-of-machine-tools-with-the-steam-hammer-the-steam-is-admitted-below-the-piston-which-is-thus-raised-to-any-required-height-within-the-limits-of-the-stroke-when-the-communication-with-the-boiler-is-shut-off-and-the-steam-below-the-piston-is-allowed-to-escape-the-piston-with-the-mass-of-ironforming-the-hammer-attached-to-the-piston-rod-falls-by-its-own-weight-thi-PBT5FK.jpg