Mechanical and Civil Engineering, Division of [former name], NMAH, SI
Work and Industry, Division of, NMAH, SI
6.5 cu. ft. : 11 boxes
The Hartford Electric Light Company, now defunct, began operations on April 7, 1883. The mercury boiler was developed by W.L.R. Emmet to use mercury fluid in conjunction with steam power to improve cycle efficiency in converting coal or oil to electric power. An experimental mercury-steam generating unit was installed by Hartford Electric Light Company in 1923 at Dutch Point, Connecticut.
The collection documents the construction, operation, and demolition of mercury boiler generating units developed by William L.R. Emmet and installed by the Hartford Electric Light Company, Hartford, Connecticut. There is general correspondence between HELCO and General Electric, Babcock and Wilcox, and Stone and Webster, 1921-1951; operating log from Dutch Point, 1923; operating logs from South Meadow installation, 1928; boiler inspection report, 1949; operating instructions and data, photos, miscellaneous articles and clippings.
Emmet Mercury Boiler Collection, ca. 1909-1967, Archives Center, National Museum of American History