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Paddle Steamer Uri
Society: ASMEMain Category: MechanicalSub Category: Water TransportationEra: 1900-1909DateCreated: 1901Lake Navigation CompanyLucerneCountry: SwitzerlandWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/water-transportation/-200-paddle-steamer-uri-%281901%29Creator: Sulzer brothers of Winterthur

This is the oldest operating vessel with a diagonal, compound steam engine, with disc valve gear. Operating at a higher pressure than the oscillating-cylinder engines then used in lake steamers, this type of engine was more powerful and efficient, as well as smaller. The compound engine, built by Sulzer brothers of Winterthur, uses super-heated steam from the boilers in two stages-high and low pressure-before exhausting it into a condenser. The engine produces 650 horsepower, turning two paddle wheels.

YearAdded:
1998
Image Credit: Courtesy Wikicommons/Coronado1992 (CC BY-SA 3.0)Image Caption: Paddle Steamer UriEra_date_from: 1901
John Penn & Sons Oscillating Steam Engine
Society: ASMEMain Category: MechanicalSub Category: Water TransportationEra: 1840-1849DateCreated: 1841Aboard the paddle steamer DiesbarDresdenState: SaxonyZip: 01069Country: GermanyWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/water-transportation/-245-john-penn---sons-oscillating-steam-engine-%2818Creator: John Penn & Sons

The oscillating steam engine, built by John Penn & Sons, is located aboard the famed paddle steamer Diesbar.  Diesbar is the second oldest of a fleet of nine paddle steamers in Dresden.  What makes the Diesbar unique is its coal fueled engine and single deck design.  The John Penn and Sons engine that runs the steamer is the oldest operational marine steam engine in the world.  It has been in operation for over 165 years. 

YearAdded:
2008
Image Credit: Photo: Sächsische DampfschiffahrtImage Caption: John Penn & Sons Oscillating Steam EngineEra_date_from: 1841
Greens Bayou Generator Plant
Society: ASMEMain Category: Electric, MechanicalSub Category: SteamEra: 1940-1949DateCreated: 194913300 West Bellfort AvenueHoustonState: TXZip: 77099Country: USAWebsite: https://www.asme.org/about-asme/who-we-are/engineering-history/landmarks/154-greens-bayou-generator-plantCreator: Sinton, Walton

On April 21, 1949, a completely outdoor turbine-generator was placed into commercial operation at the Greens Bayou electric power plant--the first fully outdoor unit to operate in the United States. The demand for unprecedented quantities of electricity after World War II pressed utilities to provide addition power quickly. The outdoor design, unlike the traditional large turbine hall, resulted in significant reductions in the cost per kilowatt to build the plant.

YearAdded:
1991
Image Credit: Courtesy ASMEImage Caption: Greens Bayou Generator PlantEra_date_from: 1949
Society: ASMEMain Category: MechanicalSub Category: PumpingEra: 1890-1899DateCreated: 1893300 East Ludington StreetIron MountainState: MIZip: 49801Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/pumping/-124-chapin-mine-pump-%281893%29Creator: Edward P. Allis Company, Reynolds, Edwin
As one of the large strikes in the Lake Superior geological district, the Chapin Mine was located under a cedar swamp and unminable until it was drained by one of the largest pumping engines of the 1880s. Miners at the Chapin Mine, which began producing ore in 1880, soon tried to sink a deep shaft through 90 feet of quicksand, using enormous pumps driven by compressed air. The sand was frozen using two of the largest refrigeration compressors built, and a sectional cast-iron circular shell lined the D shaft. Mining continued for ten years using conventional pumps to dewater the lower levels.
YearAdded:
1987
Image Credit: Public Domain; Produced prior to 1/1/1923Image Caption: Chapin Mine PumpEra_date_from: 1893
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