Friedman Injector, Patent Model

Description:

This model was submitted to the U.S. Patent Office with the application for the patent issued to Alexander Friedman, of Vienna, Austria, April 6, 1869, no. 88620.

The model represents a steam injector designed for elevating or forcing water and reducing the shock produced by the sudden condensation of steam when brought into contact with the water.

The injector is of the usual form with the addition of a small auxiliary steam jet, or ejector, which serves to draw water into the mixing chamber before the main steam valve is opened. A safety cock is also provided, which permits a part of the water to escape as the pressure is being raised to the degree sufficient to overcome the resistance against which the injector is working.

Reference:

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.

Date Made: 1869Patent Date: 1869-04-06

Inventor: Friedmann, Alexander

Location: Currently not on view

Place Made: AustriaAssociated Place: Austria: Vienna state, Vienna

See more items in: Work and Industry: Mechanical and Civil Engineering, Bulletin 173, Engineering, Building, and Architecture, Work, Industry & Manufacturing

Exhibition:

Exhibition Location:

Related Publication: Frank A. Taylor. Catalog of the Mechanical Collections of the Division of Engineering United States National Museum, Bulletin 173

Data Source: National Museum of American History

Id Number: ER.308679Accession Number: 89797Catalog Number: 308679Patent Number: 88,620

Object Name: steam pump, modelpatent model, pump, steamObject Type: Patent Model

Physical Description: brass (overall material)Measurements: overall: 8 1/4 in x 11 in x 6 3/8 in; 20.955 cm x 27.94 cm x 16.1925 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a9-16af-704b-e053-15f76fa0b4fa

Record Id: nmah_1063732

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.