1849—Bourdon’s Pressure Gauge. Lenticular Stereoscope by Brewster. Hibbert’s Latch Needle for Knitting Machine. Corliss Engine.
1850—First Submarine Cable—Dover to Calais. Collodion Process in Photography. Mercerizing Cloth. American Machine-made Watches.
1851—Dr. Page’s Electric Locomotive. The Ruhmkorff Coil. Scott Archer’s Collodion Process in Photography. Seymour’s Self-Raker for Harvesters. Helmholtz invents Opthalmoscope. Maynard Breech Loading Rifle.
1852—Channing and Farmer Fire Alarm Telegraph. Fox Talbot first uses reticulated screen for Half Tone Printing.
1853—Gintl’s Duplex Telegraph invented. Electric Lamps devised by Foucault and Duboscq. Watt and Burgess Soda Process for Making Wood Pulp.
1854—Wilson’s Four Motion Feed for Sewing Machines. Melhuish invents the Photographic Roll Films. Hermann’s Diamond Drill. Smith and Wesson Magazine Firearm (Foundation of the Winchester).
1855—Bessemer Process of Making Steel. Hjorth invents Dynamo Electric Machine. Ericsson’s Air Engine. Niagara Suspension Bridge. Dr. J. M. Taupenot invents Dry Plate Photography. The Michaux Bicycle.
1856—Hughes Printing Telegraph. Alliance Magneto Electric Machine. Woodruff Sleeping Car. First commercial Aniline Dyes by Perkins. Siemens Regenerative Furnace.
1857—Rogues’ Gallery established in New York. Introduction of Iron Floor Beams in building Cooper Institute. Siemens describes principle of Self Intensification of Cold (now used in ice and liquid air machines).
1858—Phelps Printing Telegraph invented. First Atlantic Cable Laid. Paper pulp from Wood by Voelter. First use of Electric Light in Light House at South Foreland. Giffard Steam Injector. Gardner patents first Underground Cable Car System.