"The R. F. Tube" X-Ray Tube
date: label: associated dates
content: 1972 / 1972
name: label: maker
content: R. Friedlander & Co.
notes: label: Description
content: Cold cathode, three electrode glass x-ray tube with gas auto regulation, and inscription that reads “The F. Co. / The R.F. Tube / 840.” This was manufactured by R. Friedlander & Co. but reflects a design developed by Carl Heinrich Florenz Müller (1845-1912), a glassblower in Hamburg, Germany.
label: Description
content: Robert Friedlander began in business in Chicago in 1896, making and importing X-ray tubes and fluoroscopes. Some of these items came from Müller in Hamburg. In a catalog published around 1903, Friedlander noted that "As our former manufacturer, Mr. Mueller, refused to comply with our request to make certain improvements on our tubes which were absolutely necessary to their perfect working we were compelled to open our own factory in Berlin, Germany, where we now manufacture our tubes according to our latest patent applied for designs."
label: Description
content: Ref: Theodor Friedlander, “X-Ray Tube,” U.S. Patent 725,331 (April 14, 1903), assigned to R. Friedlander & Co.
label: Description
content: Theodor Friedlander, “X-Ray Tube,” US Patent 726,044 (April 21, 1903), assigned to R. Friedlander & Co.
label: Description
content: Ref: The Friedlander Co., Catalogue No. 3 of Electro-Therapeutic Apparatus (Chicago, New York, Berlin, n.d.), p. 19.
label: Location
content: Currently not on view
place: label: associated place
content: United States: Maryland, Baltimore
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Gift of The Medical and Chirurgical Faculty of the State of Maryland
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.302606.113
label: accession number
content: 302606
label: catalog number
content: 302606.113
objectType: label: Object Name
content: X-Ray Tube
label: Object Name
content: tube, x-ray
label: Other Terms
content: X-Ray Tube; Radiography
physicalDescription: label: Physical Description
content: glass (overall material)
label: Physical Description
content: purple (overall color)
label: Measurements
content: overall: 20.5 cm x 37.5 cm x 18 cm; 8 1/16 in x 14 3/4 in x 7 1/16 in