Dog-Powered Treadmill, Patent Office

This model was submitted to the U.S. Patent Office with the application for the patent issued to F. K. Traxler, April 23, 1878, no. 202679.
The treadmill represented consists of an endless track of wooden cleats on a flexible belt, carried over two rollers held in a rigid frame. The frame pivots about the shaft of the upper roller so that the lower end of the frame may be raised or lowered to give any desired angle of inclination to the track. A power take-off is geared to the shaft of the upper track roller.
This description comes from the 1939 Catalog of the Mechanical Collections of the Division of Engineering United States Museum Bulletin 173 by Frank A. Taylor.
Currently not on view
Physical Description
wood (overall material)
overall: 7 1/4 in x 6 5/8 in x 10 3/4 in; 18.415 cm x 16.8275 cm x 27.305 cm
ID Number
accession number
catalog number
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Work and Industry: Mechanical and Civil Engineering
Industry & Manufacturing
Bulletin 173
Engineering, Building, and Architecture
Data Source
National Museum of American History


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