Schofield Rotary Engine, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to Frederick F. Schofield, of Oscoda, Michigan, September 19, 1876, no. 182291.
This is a rotary engine in which the outer casing rotates and acts a both a flywheel and belt pulley. Otherwise it does not differ materially from the many other rotary engines in which an annular space between a casing and a drum is divided by movable abutments in the out casing, and is traversed by a driving head on the drum. In this case the drum is held stationary and the abutments in the casing are driven around by the pressure between the abutments and the head on the drum.
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
Object Name
steam engine, rotary, model
patent model, engine, rotary steam
date made
patent date
Schofield, Frederick F.
Physical Description
brass (overall material)
iron (overall material)
brass wheel on iron supports-from catalog card: 11 in x 11 in x 7 in; 27.94 cm x 27.94 cm x 17.78 cm
overall: 10 5/8 in x 9 3/4 in x 6 1/4 in; 26.9875 cm x 24.765 cm x 15.875 cm
place made
United States: Michigan
associated place
United States: Michigan, Oscoda
ID Number
accession number
catalog number
patent number
See more items in
Work and Industry: Mechanical and Civil Engineering
Industry & Manufacturing
Bulletin 173
Engineering, Building, and Architecture
Data Source
National Museum of American History, Kenneth E. Behring Center
Related Publication
Frank A. Taylor. Catalog of the Mechanical Collections of the Division of Engineering United States National Museum, Bulletin 173

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