Hewitt Piston-Rod Packing, Patent Model
Hewitt Piston-Rod Packing, Patent Model
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- Description
- 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.
- 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.
- Reference:
- 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.
- Location
- Currently not on view
- Object Name
- piston rod packing, model
- patent model, piston rod packing
- Object Type
- Patent Model
- date made
- 1879
- patent date
- 1879-06-03
- inventor
- Hewitt, John
- place made
- United States: Missouri
- associated place
- United States: Missouri, St. Louis
- Physical Description
- brass (overall material)
- Measurements
- overall: 3 in x 4 in x 7 in; 7.62 cm x 10.16 cm x 17.78 cm
- ID Number
- MC.309247
- catalog number
- 309247
- accession number
- 89797
- patent number
- 216,038
- See more items in
- Work and Industry: Mechanical and Civil Engineering
- Bulletin 173
- Engineering, Building, and Architecture
- Work
- Industry & Manufacturing
- Data Source
- National Museum of American History
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