Casey's Section Liner

Casey's Section Liner

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Description
A section liner is an instrument for drawing closely spaced parallel lines, such as appeared in cross-hatching. In this example, a metal crosspiece attaches to the base of a plastic triangle. The separation between the crosspiece and the adjacent side of the triangle is controlled by the metal mechanism, which may be set for hundredths of an inch or for millimeters.
Casey’s section liner was sold by Keuffel & Esser Company as catalog number 1157 from at least 1890 until at least 1921. It is not listed in the 1936 edition of the catalog. The instrument also was sold by Gurley in the early twentieth century. This example is marked: 1157. It also is marked: Keuffel & Esser Co. (/) NY.
The invoice for the object (1982.0147.04.1) is dated 1919.
References:
Keuffel & Esser Company, Catalog, 1890, p. 51, 109. The catalog number for the instrument is 1157.
Keuffel & Esser Company, Catalog, 1921, p. 108. The catalog number for the instrument is 1157.
W. and L.E. Gurley, A Manual of the Principal Instruments Used in American Engineering and Surveying, vol. 45, 1910, p. 395. (also 1908, p. 374).
For a discussion of section liners, see the website www.mathsinstruments.me.uk, accessed July 13, 2017.
Location
Currently not on view
Object Name
section liner
Date made
1919
maker
Keuffel & Esser Co.
place made
United States: New York, New York City
Measurements
overall: 1.1 cm x 23 cm x 17.8 cm; 7/16 in x 9 1/16 in x 7 in
ID Number
1982.0147.04
catalog number
1982.0147.04
accession number
1982.0147
Credit Line
Gift of Kenyon College Department of Physics
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Single Drawing Instruments
Data Source
National Museum of American History
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