Rotary Vacuum Pump
name: label: maker
content: E. Leybold’s Nachfolger
notes: label: Description
content: Wolfgang Gaede (1878-1945) was a German physicist who presented an account of his first rotary mercury pump to scientific colleagues in 1905. The following year he became a consultant to E. Leybold's Nachfolger, a German firm that manufactured scientific apparatus. This rotary pump came from the Department of Physics at Princeton University. The inscriptions read “1470” and “U.S.A. Patent” and “E. Leybold’s Nachfolger Cöln” and “DRP ang.” The later indicates a German patent sought but not yet granted.
label: Description
content: Ref: Wolfgang Gaede, “Means for Producing High Vacuums,” U.S. Patent 852,947 (May 7, 1907).
label: Description
content: E. Leybold's Nachfolger, <i>Special Price List No. XIII. Gaede's Air Pumps</i> (Cöln, 1931).
label: Description
content: M. Dunkel, “Wolfgang Gaede. An Appreciation of his Life on the Occasion of the 50th Anniversary of the Invention of the Diffusion Pump,” <i>Vacuum</i> 13 (1963): 401-503.
label: Location
content: Currently not on view
place: label: place made
content: Germany: North Rhine-Westphalia, Cologne
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Princeton University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.318557
label: catalog number
content: 318557
label: accession number
content: 232728
objectType: label: Object Name
content: pump, vacuum
physicalDescription: label: Measurements
content: overall: 15 in x 10 1/2 in x 15 in; 38.1 cm x 26.67 cm x 38.1 cm