Leuchsenring Rotary Water Engine, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to Robert Leuchsenring, of New Bedford, Massachusetts, March 9, 1880, no. 225226.
This is a form of engine in which a drum-shaped rotor turns in a casing, which is eccentric to the center of the drum, so that the drum runs against one part of the casing and a crescent-shaped annular space is formed between the casing and the drum. Water is admitted tangentially to the drum to one side of and away from the point at which the drum and casing meet. The water impinges upon abutments on the drum, turns the drum, and discharges from the engine about two-thirds of the way around the casing. The abutments on the drum slide into the drum to pass the casing and are held against the casings by springs.
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
engine, rotary, steam, model
patent model, engine, rotary steam
date made
patent date
Leuchsenring, Robert
on oak base-from catalog card: 10 in x 9 in x 7 in; 25.4 cm x 22.86 cm x 17.78 cm
overall: 8 5/8 in x 9 3/4 in x 7 in; 21.9075 cm x 24.765 cm x 17.78 cm
place made
United States: Massachusetts
associated place
United States: Massachusetts, New Bedford
ID Number
catalog number
accession 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
Additional Media

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