1830—Vanadium discovered by Sefstroem. Abbe Dal Negro’s Electrically operated pendulum. Ericsson’s Steam Fire Engine.
1831—Faraday discovers Magnetic Induction. Professor Henry telegraphs signals. Professor Henry invents his Electric Motor. Locomotive “John Bull” put in service on Camden and Amboy R. R. Chloroform discovered by Guthrie. McCormick first experiments with Reaper.
1832—Professor Morse conceives the idea of Electric Telegraph. First Magneto-Electric Machines by Saxton in United States and Pixii in France. Sturgeon’s Rotary Electric Motor. Baldwin’s first locomotive, “Old Ironsides,” built. Link Motion for Locomotive Engine invented by James. Chloral-hydrate discovered by Liebig.
1833—Steam Whistle adopted by Stephenson. Hussey’s Reaper patented.
1834—Jacobi’s Rotary Electric Motor. Henry Bessemer electro-plates lead castings with copper. Faraday demonstrates relation of chemical and electrical force. McCormick Reaper patented. Carbolic Acid discovered by Runge. Perkins’ Ice Machine.
1835—Forbes proves the absence of heat in Moonlight. Burden’s horse shoe Machine.
1836—The Daniell Constant Battery invented. Acetylene Gas produced by Edmond Davy. Colt’s Revolver.
1837—Cooke and Wheatstone’s British patent for Electric telegraph. Steinheil discovered feasibility of using the earth for return section of electric circuit. Davenport’s Electric Motor. Spencer’s experiments in electrotyping. Galvanized Iron invented by Craufurd.
1838—Professor Morse’s French patent for Telegraph. Jacobi’s Galvano-plastic process for making Electrotype Printing Plates. Reflecting Stereoscope by Wheatstone. Dry Gas Meter by Defries.