Curve for Drawing a Hyperbola, Keuffel & Esser 2182
date: label: date made
content: ca 1900
name: label: maker
content: Keuffel & Esser Co.
notes: label: Description
content: This small, flat unpainted wooden pear wood curve has a hyperbolic top edge and a straight bottom. There are two holes along the axis. A mark on one side reads: 2182. Another mark on the same side reads; KEUFFEL & ESSER (/) N.Y.
label: Description
content: Keuffel & Esser’s model 2182 was a set of pear wood curves of hyperbolas in eight sizes, ranging from 2 to 5 1/2 inches in depth. This is the 3 ½ inch size. Keuffel and Esser sold ellipses, hyperbolas and parabolas made from pear wood from at least 1892 until at least 1913. By 1921, such curves were available from K & E only in xylonite.
label: Description
content: References:
label: Description
content: Keuffel & Esser Company, <I>Catalog</I>, New York, 1892, p. 151.
label: Description
content: Keuffel & Esser Company, <I>Catalog</I>, New York, 1909, p. 226.
label: Description
content: Keuffel & Esser Company, <I>Catalog</I>, New York, 1913, p. 203.
label: Description
content: Keuffel & Esser Company, <I>Catalog</I>, New York, 1921, p. 147.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, New York City
topic: label: Subject
content: Mathematics
label: Subject
content: Drawing Instruments
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Curves
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Wesleyan University
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1985.0112.229
label: catalog number
content: 1985.0112.229
label: accession number
content: 198540112
objectType: label: Object Name
content: Curve
physicalDescription: label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: .2 cm x 9.2 cm x 9.4 cm; 3/32 in x 3 5/8 in x 3 11/16 in