Water Motor, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to W. F. Eyster, of Chambersburg, Pennsylvania, November 4, 1879.
The model represents a vertical cylindrical water tube having a vertical slot in one side through which the rim of a vertical water wheel extends into the tube. The water wheel is supported and enclosed in a flat circular chamber, which bolts to the side of the water tube. A nozzle within the tube at the top directs the water downward against the buckets of the wheel at about the height of the center of the wheel. A plug cock at the top of the tube controls the flow of water, and a funnel-shaped flange below the cock drains any leakage into the water tube. One feature of the motor is that the part of the water tube that carries the water wheel is free to revolve about its vertical axis, so that the bulky part of the motor can be put in the position most convenient to the machine operator.
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
indicator, steam engine
indicator, steam engine, model
patent model, motor, water
date made
patent date
Eyster, Wilbur F.
Physical Description
nickel (overall material)
overall-from catalog card: 5 in x 15 in; 12.7 cm x 38.1 cm
overall: 12 1/8 in x 5 in x 3 5/8 in; 30.7975 cm x 12.7 cm x 9.2075 cm
place made
United States: Pennsylvania
associated place
United States: Pennsylvania, Chambersburg
ID Number
catalog number
accession number
patent number
Engineering, Building, and Architecture
Industry & Manufacturing
Bulletin 173
See more items in
Work and Industry: Mechanical and Civil Engineering
Bulletin 173
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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