Corliss Exhaust-Valve Gear, Patent Model
date: label: date made
content: 1876
label: patent date
content: 1876-05-09
name: label: inventor
content: Corliss, George H.
notes: label: Description
content: This model was submitted to the U.S. Patent Office with the application for the two patents issued to George H. Corliss, May 9, 1876, nos. 177059 and 177099.
label: Description
content: The model represents the valve gear of a horizontal cylinder with a separate rotary steam and exhaust valve at each end of the cylinder. The valves are driven from one wrist plate, the steam valves through disengaging hooks or catches, which are controlled by the governor, the exhaust valves by a series of permanently connected links designed to effect a quick closing of the exhaust valves. The steam valves are closed by vacuum dash pots instead of by weights or springs as in the earlier Corliss valve gears.
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: Rhode Island
label: associated place
content: United States: Rhode Island, Providence
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
label: See more items in
content: Work
label: See more items in
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: ER.308693
label: accession number
content: 89797
label: catalog number
content: 308693
label: patent number
content: 177,059
label: patent number
content: 177,099
objectType: label: Object Name
content: valve gear, model
label: Object Name
content: patent model, valve, steam engine
label: Object Type
content: Patent Model
physicalDescription: label: Physical Description
content: wood (overall material)
label: Physical Description
content: brass (overall material)
label: Measurements
content: walnut block-from catalog card: 5 1/2 in x 6 in; 13.97 cm x 15.24 cm
label: Measurements
content: overall: 7 3/8 in x 6 in x 3 in; 18.7325 cm x 15.24 cm x 7.62 cm