Starbuck Siphon Condenser, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to George H. Starbuck, of Troy, New York, September 10, 1878, no. 207827.
This model represents a form of barometric condenser in which an annular jet of water is brought into contact with an annular jet of the steam to be condensed, and the resulting mixture is conducted from the condenser by a pipe extending 33 feet or more below it. The peculiar feature of this condenser is the bulbous valve, which fits within the water pipe and forms a variable annular water passage by which the quantity of water flowing can be adjusted while the shape of the annular jet of water, which is essential to the best operation of the condenser, is maintained unbroken.
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
date made
patent date
place made
United States: New York, New York
Physical Description
brass (overall material)
overall - from catalog card: 7 in; 17.78 cm
overall: 2 5/8 in x 7 1/8 in x 2 5/8 in; 6.67004 cm x 18.0975 cm x 6.6675 cm
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


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