Gaede mercury pump
date: label: date made
content: ca 1913
name: label: maker
content: E. Leybold’s Nachfolger
notes: label: Description (Brief)
content: Mercury pump, with a painted black frame, a gear drive assembly on one end, and a hose inlet fitting on the other end. A valve assembly on top is approximately 4" high. Marks: "3355", "E. Leybold's Nachfolger Col. DRP ang."
label: Description (Brief)
content: An online thread notes: "A Gaede mercury pump works by using a rotating piston to push and compress mercury vapor. As the vapor is compressed, it is forced through a narrow tube, creating a vacuum behind it. This process is repeated until the desired level of vacuum is achieved. The maximum vacuum that can be achieved with a Gaede mercury pump is approximately 10^-6 torr. This level of vacuum is considered high vacuum and is suitable for many scientific experiments and industrial processes. A Gaede mercury pump is specifically designed for pumping out non-corrosive gases [and] is not suitable for corrosive gases or gases that can react with mercury. [That] can damage the pump and affect its performance." Reference: https://www.physicsforums.com/threads/vacuum-possible-from-gaede-mercury-pump-from-1913.677464.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Princeton University, Department of Physics, thru Frank Shoemaker
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.330591
label: catalog number
content: 330591
label: accession number
content: 299612
objectType: label: Object Name
content: mercury pump
physicalDescription: label: Measurements
content: overall: 16 in x 16 in x 11 in; 40.64 cm x 40.64 cm x 27.94 cm