Toy Vacuum Engine
notes: label: Description
content: This toy vacuum engine was purchased around 1915 and is made of cast iron, painted black. A vacuum engine refers to any kind of engine which derives its force from air pressure against one side of the piston, while also having a partial vacuum on the other side of it. This pressure differential can be the result of heat transfer, or mechanically produced by an external source.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Mechanical and Civil Engineering
creditLine: label: Credit Line
content: Gift of Henry H. Porter, Washington, D. C.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MC.335706
label: catalog number
content: 335706
label: accession number
content: 1977.0929
objectType: label: Object Name
content: Toy, Vacuum Engine
label: Object Name
content: vacuum engine, toy
physicalDescription: label: Measurements
content: overall: 7 1/2 in x 4 1/2 in x 4 1/2 in; 19.05 cm x 11.43 cm x 11.43 cm
label: Measurements
content: flywheel: 3 1/4 in; x 8.255 cm
label: Measurements
content: overall: 7 1/8 in x 4 1/2 in x 4 1/2 in; 18.0975 cm x 11.43 cm x 11.43 cm