Water Current Meter
notes: label: Description
content: After serving in the Union Army during the Civil War, General Theodore Grenville Ellis resumed work as an engineer in Hartford, Conn. In 1867 he was placed in charge of the U.S. Corps of Engineers navigation improvement study of the Connecticut River. For that task, in 1874, he built a current meter with four revolving cups and a four-blade rudder that was similar to, but smaller than, the current meter designed by Daniel F. Henry. The Department of Civil Engineering of the University of Wisconsin donated this Ellis meter to the Smithsonian.
label: Description
content: Ref: Buff & Berger, Hand-Book and Illustrated Catalogue of the Engineers’ and Surveyors Instruments (Boston, 1890), pp. 61-62 and 135-137.
label: Description
content: Arthur H. Frazier, Water Current Meters in the Smithsonian Collections of the National Museum of History and Technology (Washington, D.C., 1974), pp. 62-63 and 74-75.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.317669
label: catalog number
content: 317669
label: accession number
content: 231958
objectType: label: Object Name
content: water current meter
physicalDescription: label: Measurements
content: overall: 6 7/8 in x 20 1/2 in x 6 1/8 in; 17.4625 cm x 52.07 cm x 15.5575 cm