Allen Two-Motion Cone-Valve, Patent Model

Allen Two-Motion Cone-Valve, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to Horatio Allen, of New York, New York, June 19, 1855, no. 13075.
The model represents a conical plug valve, connected to a valve gear, which gives it two distinct motions. The first motion is a slight one parallel with the axis of the cone and directed toward its larger end; the other is in a direction tending to rotate the valve. Because the valve and valve seat are conical, the first motion effects a very slight separation of the valve from its seat and permits the rotary motion to be given without friction upon those parts.
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
valve gear, cone, steam engine, model
patent model, valve, cone
Object Type
Patent Model
date made
patent date
Allen, Horatio
place made
United States: New York
associated place
United States: New York, New York City
overall: 3 1/4 in x 9 in x 4 1/4 in; 8.255 cm x 22.86 cm x 10.795 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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