Copy of Sickels' Patent Model of a Steam Engine Cut-Off Valve

Copy of Sickels' Patent Model of a Steam Engine Cut-Off Valve

Usage conditions apply
Frederick E. Sickels, a pioneer of early steam engine development, is known for his cut-off valve. This type of valve gear provides a means of rapidly cutting off the admission of steam to the cylinder of the engine at any point in the stroke of the piston. It was widely used on the engines of the side wheel steamboats up to the beginning of the 20th century and was the forerunner of the many subsequent designs of drop cut off valve gears.
This model is a copy of the model that was filed with his application for patent. The Sickels valve gear is generally considered to be the first successful and practical drop cut off valve. The original patent model is also in the collections and can be found using its Catalog Number MC.308650.
Object Name
engine, steam, valve gear, model
patent model, valve gear, steam engine
patent model copy, valve gear, steam engine
date made
patent date
Sickels, Frederick E.
place made
United States: Missouri
associated place
United States: New York, New York City
ID Number
catalog number
accession number
patent number
Credit Line
Frederick Elsworth Sickels, Kansas City, Mo.
Patent Models
Steam Engines
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Work and Industry: Mechanical and Civil Engineering
Patent Models
Engineering, Building, and Architecture
Power Machinery
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
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