Hydraulic Ram
name: label: maker
content: L. E. Knott Apparatus Company
notes: label: Description
content: Hydraulic ram from the Paul Laurence Dunbar High School in Washington, D.C., a school that was established in 1870 as the Preparatory High School for Colored Youth. It may date from 1916 when the school moved into a new building specially built for the purpose. The "KNOTT APP. CO. BOSTON" inscription is that of an important apparatus firm. Knott termed it a “Commercial type demonstration hydraulic ram with glass air chamber” so designed that the working parts could be seen in operation.
label: Description
content: Ref: L. E. Knott Apparatus Co., <i>Harcourt Equipment for Physics</i> (Cambridge, Mass., 1928), p. 74.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Boston
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Dunbar High School
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.323749
label: catalog number
content: 323749
label: accession number
content: 252354
objectType: label: Object Name
content: hydraulic ram
physicalDescription: label: Measurements
content: overall: 13 in x 10 in x 5 1/2 in; 33.02 cm x 25.4 cm x 13.97 cm
label: Measurements
content: overall: 13 in x 10 1/2 in x 8 3/4 in; 33.02 cm x 26.67 cm x 22.225 cm