Geometric Model by A. Harry Wheeler, Line Perpendicular to Two Parallel Planes

Geometric Model by A. Harry Wheeler, Line Perpendicular to Two Parallel Planes

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To show relationships among planes and angles, A. H. Wheeler designed a series of what he called platform models. All of these had a rectangular platform, with other segments (often other rectangles) secured to it. This tan paper platform model showsTwo intersecting rectangles that lie between two other rectangles. One of the intersecting rectangles rotates, carrying the top rectangle with it. The line segment representing the intersection of the intersecting rectangles is perpendicular to the two horizontal planes.
A tag on the object reads: Pat 1,292,188. Another tag reads: A. Harry Wheeler. Another tag reads: 2 II PL - L[...]. The bracketed part of the mark is a symbol for perpendicular.
For related pattern, see 1979.3002.109.
A. H. Wheeler, "Blank for Forming Hollow Polyhedrons," U.S. Patent 1,292,188, January 21, 1919. This model is not shown in the patent drawings.
Currently not on view
Object Name
Geometric Model
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
white (overall color)
cut and folded (overall production method/technique)
average spatial: 8 cm x 12 cm x 7 cm; 3 5/32 in x 4 23/32 in x 2 3/4 in
ID Number
accession number
catalog number
Credit Line
Gift of Helen M. Wheeler
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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