Aristo 1324 Set of Scales
date: label: date made
content: 1948–1978
name: label: maker
content: Dennert and Pape
notes: label: Description
content: These eight white plastic rules have scales dividing 10 centimeters into proportions of 1:75, 1:50, 1:40, 1:33-1/3, 1:30, 1:25, 1:15, and 1:10. They are fastened together inside a brown leather sleeve marked: BLUE (/) WHITE. The words form a logo with a triangle and T-square. The 1:75 rule is marked: ARISTO (/) Nr. 1324. Inside the sleeve is a price tag marked: BLUE & WHITE (/) ESCALA (/) ARISTO (/) NO. 1324 (/) $30.00.
label: Description
content: In 1948 the German slide rule company, Dennert & Pape, was renamed Aristo, after the brand of plastic slide rules the firm was then manufacturing. Aristo stopped manufacturing mathematical instruments in 1978 and turned to computer-aided design. Model 1324 is shown in a 1955 catalog, alongside other rulers and architect's scales. The donor, Sebastian J. Tralongo (1928–2007), served in the U.S. Navy during World War II and then worked for the Vitro Corporation in Rockville, Md., for 35 years. He patented a device for signaling from deeply submerged submarines.
label: Description
content: References: International Slide Rule Museum, "Aristo," http://sliderulemuseum.com/Aristo.htm; Walter Shawlee II, Ted Hume, and Paul Ross, "Aristo Slide Rule Archive," Sphere Research Corporation, http://www.sphere.bc.ca/test/aristo.html; <i>Aristo Slide Rules & Drafting Instruments</i> (Germany, [1955]), 36; "Tralongo, Sebastian James 'Subby'," <i>Hartford Courant</i>, May 26, 2007; Sebastian J. Tralongo, "Submarine Signal Device" (U.S. Patent 2,989,024 issued June 20, 1961); "Vitro Corp. – Company Profile," http://www.referenceforbusiness.com/history2/25/Vitro-Corp.html.
label: Location
content: Currently not on view
place: label: place made
content: Germany
topic: label: Subject
content: Mathematics
label: Subject
content: Drafting, Engineering
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
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content: Scale Rules
creditLine: label: Credit Line
content: Gift of Sebastian J. Tralongo
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1984.1071.03
label: accession number
content: 1984.1071
label: catalog number
content: 1984.1071.03
objectType: label: Object Name
content: rule
label: Object Name
content: scale rules, set of
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: leather (overall material)
label: Measurements
content: overall: 1 cm x 18.5 cm x 2.7 cm; 13/32 in x 7 9/32 in x 1 1/16 in