Patent Model for Paper Bag Machine
date: label: date made
content: ca 1879
label: patent date
content: 1879-10-28
name: label: maker
content: Knight, Margaret E.
notes: label: Description (Brief)
content: Margaret Knight (1838–1914) applied for a patent using this model to demonstrate her machine that folded and pasted flat-bottomed paper bags. She was granted patent number 220925 for the invention in 1879. As stated in her patent specification, this design is an improvement on her earlier patent, number 116,842, granted in 1871. Her concept continues to be used in the manufacture of today's paper grocery bag.
label: Description (Brief)
content: Margaret was born in Maine, later living in New Hampshire and Massachusetts. Her first patented invention, inspired by her work at a Springfield, Massachusetts paper company, was her machine for improvement in paper-feeding; it was given patent number 109224 in 1870. She received patents for inventions having to do with the paper bag, shoe manufacturing, and rotary engine industries.
label: Description (Brief)
content: While many women had innovative ideas during the 19th century, it was sometimes difficult for them to secure patents under their own names. Knight's inventions are celebrated because they demonstrate women's participation in the American patent system.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Graphic Arts
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content: Food
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content: Patent Models, Graphic Arts
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content: Communications
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content: Work
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content: Industry & Manufacturing
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content: National Treasures exhibit
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content: Patent Models
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content: Artifact Walls exhibit
publisher: label: Related Publication
content: Harris, Elizabeth M.. Patent Models in the Graphic Arts Collection
creditLine: label: Credit Line
content: Pravel, Gambrell, Hewitt, Kirk, Kimball, and Dodge
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1980.0004.01
label: accession number
content: 1980.0004
label: catalog number
content: 1980.0004.01
label: patent number
content: 220925
label: catalog number
content: GA*89797.220925
objectType: label: Object Name
content: patent model
label: Object Type
content: Patent Model
label: Object Type
content: papermaking
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 6 3/8 in x 6 3/4 in x 12 3/16 in; 16.2052 cm x 17.145 cm x 30.9372 cm