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
Object Name
condenser, siphon, model
date made
patent date
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
place made
United States: New York, New York
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

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Enter the characters shown in the image.