Viscosimeter
notes: label: Description
content: In 1884, after a Committee of the German State Railways noticed a connection between the viscosity of mineral oils and their lubricating properties, Carl Oswald Viktor Engler designed a viscometer for use with oils of this type. An improved model followed in 1892. Engler’s viscosimeter was widely used in Germany and elsewhere on the Continent, and became available in the U.S. in the early years of the twentieth century. The “1745 / PTR / 1906” inscription on this example refers to the Physikalisch-Technische Bundesanstalt, the national metrology institute of Germany.
label: Description
content: Ref: C. Engler, “Viscosimeter,” <i>Chemiker Zeitung</i> 9 (1885).
label: Description
content: Henry Heil, <i>Illustrated Catalogue and Price-List of Chemical Apparatus</i> (New York, 1903), pp. 441-442.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of University of Pennsylvania Chemistry Lab
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: CH.316213
label: catalog number
content: 316213
label: accession number
content: 217523
objectType: label: Object Name
content: Viscosimeter, Doolittle Torsion
label: Object Name
content: viscosimeter
physicalDescription: label: Measurements
content: overall: 15 in x 6 in; 38.1 cm x 15.24 cm
label: Measurements
content: overall: 15 in x 7 1/2 in x 6 1/4 in; 38.1 cm x 19.05 cm x 15.875 cm