Governor and Throttle Valve Model
notes: label: Description
content: This is a crank-operated, wooden model of a ball governor connected to a throttle valve in a short section of pipe.
label: Description
content: The governor consists of balls hung in the usual manner upon arms attached by pin joints at their upper ends to the top of the governor spindle. Radius rods from the centers of the ball arms connect to a collar upon the spindle, so that the collar moves up and down as the balls are swung in or out by changes in the speed of the engine. The sliding collar is connected to a crank on the axis of the disk of a plain butterfly valve.
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
setName: label: See more items in
content: Work and Industry: Mechanical and Civil Engineering
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content: Bulletin 173
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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
creditLine: label: Credit Line
content: Gift of Franklin Machine Company, Providence, R. I.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ER.309818
label: accession number
content: 109438
label: catalog number
content: 309818
objectType: label: Object Name
content: governor and throttle valve
label: Object Name
content: governor and throttle valve, model
physicalDescription: label: Physical Description
content: wood, steel (overall material)
label: Measurements
content: overall: 18 3/8 in x 12 3/8 in x 4 1/2 in; 46.6725 cm x 31.4325 cm x 11.43 cm
label: Measurements
content: in wooden frame-from catalog card: 12 in x 15 1/2 in x 4 1/2 in; 30.48 cm x 39.37 cm x 11.43 cm
label: Measurements
content: ball governor, solid pattern of-from catalog card: 7 in x 10 in; x 17.78 cm x 25.4 cm