Allen Two-Motion Cone-Valve, Patent Model
date: label: date made
content: 1855
label: patent date
content: 1855-06-19
name: label: inventor
content: Allen, Horatio
notes: label: Description
content: 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.
label: Description
content: 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.
label: Description
content: Reference:
label: Description
content: 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.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York
label: associated place
content: United States: New York, New York City
setName: label: See more items in
content: Work and Industry: Mechanical and Civil Engineering
label: See more items in
content: Bulletin 173
label: See more items in
content: Engineering, Building, and Architecture
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content: Work
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content: Industry & Manufacturing
publisher: label: Related Publication
content: Frank A. Taylor. Catalog of the Mechanical Collections of the Division of Engineering United States National Museum, Bulletin 173
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MC.308655
label: catalog number
content: 308655
label: accession number
content: 89797
label: patent number
content: 13,075
objectType: label: Object Name
content: valve gear, cone, steam engine, model
label: Object Name
content: patent model, valve, cone
label: Object Type
content: Patent Model
physicalDescription: label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 3 1/4 in x 9 in x 4 1/4 in; 8.255 cm x 22.86 cm x 10.795 cm