Wotapek Injector, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to Joseph Wotapek, of New York, New York, May 6, 1884, no. 298329; assigned to the Nation Manufacturing Co.
The improvement involved in this injector is the use of a nozzle holder by which the scale-incrusted nozzle or tube of the injector may be easily removed to permit cleaning. The holder is threaded into the shell of the injector from which it and the tube are drawn by unscrewing the bolder. The holder turns independently of the tube so that the tube itself is not subjected to torsion when being withdrawn from the shell.
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
Wotapek, Joseph
place made
United States: Georgia
associated place
United States: New York, New York
Physical Description
brass (overall material)
overall: 13 1/2 in x 20 in x 3 in; 34.29 cm x 50.8 cm x 7.62 cm
overall-from catalog card: 13 in x 20 in; 33.02 cm x 50.8 cm
overall: 2 3/4 in x 20 in x 13 5/8 in; 6.985 cm x 50.8 cm x 34.6075 cm
ID Number
catalog number
patent number
accession 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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