Model of the Intersection of Cylinders by Richard P. Baker, Baker #386 (a Ruled Surface)

Model of the Intersection of Cylinders by Richard P. Baker, Baker #386 (a Ruled Surface)

<< >>
Usage conditions apply
This ruled surface has a wooden frame painted black; six quadrants of cylinders, each of which is formed by threads joining arcs in the frame on two opposite sides; and six wires indicating curves of intersection of two cylindrical quadrants. Three of the wires intersect near one corner, and the other three near the opposite corner. Threads are in blue, yellow, and red.
A paper tag on the bottom of the model reads: Intersection of cylinders (/) xy = 4, yz=6, zx=8.
Currently not on view
Object Name
geometric model
date made
ca 1906-1935
Baker, Richard P.
Physical Description
thread (overall material)
wood (overall material)
metal (overall material)
red (overall color)
blue (overall color)
yellow (overall color)
black (overall color)
screwed, bolted and threaded (overall production method/technique)
average spatial: 27.5 cm x 26.4 cm x 26.1 cm; 10 13/16 in x 10 13/32 in x 10 9/32 in
ID Number
accession number
catalog number
Credit Line
Gift of Frances E. Baker
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object