Baker Steam Engine, Patent Model
date: label: date made
content: 1878
label: patent date
content: 1878-09-10
name: label: inventor
content: Baker, John G.
notes: label: Description
content: This model was submitted to the U.S. Patent Office with the application for the patent issued to John G. Baker, of Philadelphia, Pennsylvania, September 10, 1878, no. 207936.
label: Description
content: The model represents a small vertical single-acting engine in which the connecting rod is attached to the piston by a ball-and-socket joint, and the space enclosed within the cylinder and the face of the piston is alternately opened to the exhaust and to the steam pipes by rotating the piston laterally in the cylinder. The piston is rotated by a simple bent rod, one end of which turns and slides in an opening in the connecting rod, and the other end slides and turns in a socket in the skirt of the piston. Turning the piston causes two longitudinal grooves in the piston to register periodically with exhaust and steam ports in the cylinder wall.
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: Pennsylvania
label: associated place
content: United States: Pennsylvania, Philadelphia
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: MC.309246
label: catalog number
content: 309246
label: accession number
content: 89797
label: patent number
content: 207,936
objectType: label: Object Name
content: engine, steam, model
label: Object Name
content: patent model, engine & pump, steam
label: Object Name
content: pump, single acting
label: Object Type
content: Patent Model
physicalDescription: label: Physical Description
content: brass (overall material)
label: Physical Description
content: wood (base material)
label: Measurements
content: cylinder base-from catalog card: 8 in; 20.32 cm
label: Measurements
content: overall: 8 1/8 in x 8 in; 20.6375 cm x 20.32 cm