Hewitt Piston-Rod Packing, Patent Model
date: label: date made
content: 1879
label: patent date
content: 1879-06-03
name: label: inventor
content: Hewitt, John
notes: label: Description
content: This model was submitted to the U.S. Patent Office with the application for the patent issued to John Hewitt, of St. Louis, Missouri, June 3, 1879, no. 216038.
label: Description
content: The model represents a 2-piece, flange-and-gland stuffing box of the usual form, packed with malleable metal rings with beveled edges. The rings are alternately beveled in opposite directions so that adjoining surfaces match. The edges of the flange and gland are beveled so that when the parts are brought together and tightened the effect is of a number of double wedges sliding together and expanding between the stuffing box and the shaft.
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: Missouri
label: associated place
content: United States: Missouri, St. Louis
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.309247
label: catalog number
content: 309247
label: accession number
content: 89797
label: patent number
content: 216,038
objectType: label: Object Name
content: piston rod packing, model
label: Object Name
content: patent model, piston rod packing
label: Object Type
content: Patent Model
physicalDescription: label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 3 in x 4 in x 7 in; 7.62 cm x 10.16 cm x 17.78 cm