STEAMBOATS Queens of the RiverNearly everyone is familiar with the written works of Mark Twain and his vivid descriptions of life along the Mississippi River. Imagining the time in which he lived, one image likely comes to mind, the steam-powered paddle boats moving people and cargo along America's largest river and its numerous tributaries. Ever wonder how they worked, who invented them, or why they disappeared from use except as museums of the past? Prior to using steamboats, river travel included keelboats, flat-bottom haulers not much different from barges. They used river currents to travel downstream but had no means to propel themselves upstream. To achieve an upriver journey, keelboats used crew members with long poles or teams of oxen on shore to push or pull the boat along. The journeys took about six weeks to travel down the Mississippi River, but the return trip required four or five months! That all changed when steam power enabled boats, traveling at five to eight miles per hour, used large paddlewheels to propel the boat along both with and against the current. Each boat used a large boiler heated by a furnace burning wood or coal. The steam produced by the boiling water built the pressure up to the point it forced its escape, pushing large gears which turned the paddlewheel. The paddlewheel used planks of wood attached to a central wheel with radiating spokes. As the steam turned the wheel, the planks acted as long, horizontal oars to propel the boat along the water. Some boats, sternwheelers, used a large rear wheel with other wheels, sidewheelers, mounting a paddlewheel on either side of the boat. Invention of the Steam Engine and SteamboatsThe birth of the steamboat comes from the collaboration and successive inventions of its day. First, a Scottish inventor named James Watt developed the first steam engine in 1769 as a means of pumping water out of flooded mines. While he never applied his creation to transportation uses, later inventors saw the potential in his patented design. The first inventor to apply Watt's steam engine to transportation use was John Fitch. In 1787, he adapted the steam engine to power riverboats, demonstrating his creation to the attendees of the Constitutional Convention. He sailed his 45-foot boat on the Delaware River, astounding viewers with its speed. Although he constructed a total of five steamboats, his designs required too much money to build or operate as anything but a novelty for the wealthy. History owes credit for the mass-creation and adoption of commercial steamboats to Robert Fulton and the assistance of Robert Livingston. Fulton, possessing a lifelong fascination with science and technology, left his job as a Philadelphia painter to pursue his engineering interests in steam locomotion and canal design. After studying in London, he took a job working on the canals in France where he soon met Livingston.
Finally, the French Revolution drove Jouffroy out of France. He died poor and embittered. Still, he hadn't failed. For, after Jouffroy, Fulton could only be an aftermath. Fulton is really just America's thin claim to an invention that'd been proven feasible in Europe -- long, long before.
An artist's impression of Jouffroy's accomplishment The Engines of Our Ingenuity is Copyright © 1988-1997 by John H. Lienhard. Page 2No. 1085: THE FIRST AMERICAN STEAM ENGINE Today, steam comes to America. The University of Houston's College of Engineering presents this series about the machines that make our civilization run, and the people whose ingenuity created them. Pursell, C.W., Jr., Early Stationary Steam Engines in America: A Study in the Migration of a Technology. Washington, D.C.: Smithsonian Institution Press, 1969, Chapter 1, The Colonial Experience. |