Turbine waterwheels. Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Credit for invention of the steam turbine is given both to Anglo-Irish engineer Sir Charles Parsons (1854–1931) for invention of the reaction turbine, and to Swedish engineer Gustaf de Laval (1845–1913) for invention of the impulse turbine. Modern steam turbines frequently employ both reaction and impulse in the same unit, typically varying the degree of reaction and impulse from the blade root to its periphery. The word "turbine" was coined in 1822 by the French mining engineer Claude Burdin from the
Hector (steamboat 1897) Hector (steamboat 1897) Hector was a small steam vessel built in Roche Harbor, Washington in 1897. The vessel was worked as a cannery tender and a tug boat in the San Juan Islands and on Puget Sound from 1897 to 1913. "Hector" was built for the brothers Capt. Thomas Gawley and Engineer Hector Gawley of Lopez Island. The vessel was used for some years as a chartered fish-trap tender in the San Juan Islands. Later "Hector" was sold and transferred to Tacoma where it was operated as a tug. In April 1913, "Hector", making the first trip after having refitted