Geometric Model of A. Harry Wheeler, Two Lines Perpendicular to a Plane

Geometric Model of A. Harry Wheeler, Two Lines Perpendicular to a Plane

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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. These other pieces sometimes penetrated the platform.This tan paper platform model shows a rectangular base and a vertical rectangle perpendicular to it. A line in the horizontal plane is perpendicular to the line of intersection of the two rectangles and to another line in the vertical plane. Parts of two other vertical planes are indicated by triangular pieces on either side of the central rectangle.
A typed paper tag reads: A. Harry Wheeler. Another paper tag reads: Pat, 1,192,483. A third paper tag reads: 2L (...) PL*. The symbol (...) in the final mark indicate where there is a symbol for a perpendicular.
Currently not on view
Object Name
Geometric Model
date made
after 1916
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
tan (overall color)
cut and folded (overall production method/technique)
average spatial: 7 cm x 11.5 cm x 7 cm; 2 3/4 in x 4 17/32 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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