Lenticular Rule with Rivet Tables
date: label: date made
content: ca 1974
name: label: maker
content: IMEX
notes: label: Description
content: This blue and black lenticular card has a ruler along the top edge. When viewed at one angle, a centimeter ruler is divided to millimeters and numbered by ones from 1 to 15. Below the ruler is a table for rivet code numbers, with row headings POP TAP, POP TLP, and IMEX. From another angle, a six-inch ruler is divided to 1/32" and numbered by ones from 1 to 6. Below the ruler is a table for riveting thickness, with row headings POP ALUM, POP MONEL, and IMEX.
label: Description
content: British engineer Hamilton Neil Wylie invented blind or pop rivets between 1916 and 1927. They may be installed in situations where the body (such as an aircraft) or building being assembled may be accessed from only one side. Introduced in 1955, Imex rivets are sealed on one side. While both terms are now in common use, Pop and Imex were originally brand names used by the George Tucker Eyelet Company of Birmingham, England. The rivet metals in the table include aluminum and Monel, a nickel alloy trademarked by Special Metals Corporation of New Hartford, N.Y.
label: Description
content: The donor found this object in a used book he bought at Humboldt State University in Arcata, Calif., in 1976. The back has several pen and pencil marks, including: 4.11.74; James Ramkinson; S; India Education Trust (/) Dod[illegible]nt Avenue; M. Rodrigues.
label: Description
content: Reference: "The History of Stanley Engineered Fastening in Europe," http://www.emhart.eu/eu-en/about-emhart/history.php.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
label: Subject
content: Rule, Measuring
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Industry & Manufacturing
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content: Science & Mathematics
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content: Scale Rules
creditLine: label: Credit Line
content: Gift of David Shayt
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1987.0899.01
label: accession number
content: 1987.0899
label: catalog number
content: 1987.0899.01
objectType: label: Object Name
content: rule
label: Object Name
content: scale rule
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: cardboard (overall material)
label: Measurements
content: overall: 16.3 cm x 5 cm x .1 cm; 6 13/32 in x 1 31/32 in x 1/32 in