X-Ray Tube
name: label: maker
content: Kesselring X-Ray Tube Company
notes: label: Description
content: Cold cathode glass x-ray tube with a large copper heat sink surrounding the tungsten target on the anticathode, and a “KESSELRING X-RAY TUBE CO. / CHICAGO, ILL. / PATENTED NOV. 23, ????” inscription. Hermann M. Kesselring was a German citizen living in Chicago, who was still in business in 1921.
label: Description
content: Emil Hermann Grubbé (1875-1960), the donor, was a graduate of Valparaiso University and a student at the Hahnemann Medical College in Chicago who in 1896, while playing around with Crookes tubes, found his hands becoming itchy, swollen and blistered. Soon thereafter, Grubbé learned that Wilhelm Röntgen, a German physicist, had discovered that Crookes tubes emit curious and invisible penetrating rays that he called X-rays. Grubbé built an X-ray machine soon thereafter and used it for therapeutic purposes.
label: Description
content: Ref: Henry Lyman Sayen, “Roentgen Ray Tube,” U.S. Patent 594,036 (Nov. 23, 1897), assigned to The Queen Company.
label: Description
content: “DR. E. H. GRUBBÉ, X-RAY PIONEER, DIES AT AGE 85,” Chicago Tribune (March 27, 1960), p. A7.
label: Description
content: Paul C. Hodges, The Life and Times of Emil H. Grubbe (1964).
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Gift of Emil Grubbé
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-05010
label: accession number
content: 161220
label: catalog number
content: M-05010
objectType: label: Object Name
content: X-Ray Tube
label: Object Name
content: tube, x-ray
physicalDescription: label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: metal, copper (overall material)
label: Physical Description
content: rubber (overall material)
label: Measurements
content: average spatial: 33 cm x 18 cm x 53 cm; 13 in x 7 3/32 in x 20 7/8 in