Geometric Model by A. Harry Wheeler, Measurment of a Spherical Angle

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Description
This cut paper tan object consists of two pieces showing circular discs with a projecting tangent plane at the top, as well as a paper ring of the same diameter. A mark on one piece reads: MSA*. Another mark reads: Pat 1,192,483. The model is not assembled.
Compare MA.304723.156, MA.304723.671, and MA.304723.663. For pattern, see 1979.3002.087.
Location
Currently not on view
unspecified
Wheeler, Albert Harry
patentee
Wheeler, Albert Harry
maker
Wheeler, Albert Harry
place made
United States: Massachusetts, Worcester
associated place
United States: Massachusetts, Worcester
Physical Description
paper (overall material)
tan (overall color)
not assembled (overall production method/technique)
Measurements
average spatial: .3 cm x 8.5 cm x 8 cm; 1/8 in x 3 11/32 in x 3 5/32 in
ID Number
MA.304723.671
accession number
304723
catalog number
304723.671
Credit Line
Gift of Helen M. Wheeler
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Trigonometry
Spherical Trigonometry
Data Source
National Museum of American History, Kenneth E. Behring Center

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