Anglais By elena._b 1700 cheaper & easier method to produce cast iron by Abraham Darby 1712 steam engine by Thomas Newcomen 1764 spinning jenny by James Hargreaves 1768 Water frame by Richard Arkwright water powered spinning machine 1770 Steam engine improved by James Watt 1780 Power loom by Edmund Cartwright 1793 Cotton Gin by Eli Whitney separate cotton fibers from seed 1837 Telegraph by Samuel Morse and Alfred Vail 1850 1st inexpensive process for mass-producing steel by Henry Bessemer