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Patent Model for Paper Bag Machine
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
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.
National Museum of American History’s own descriptionCredit linePatent Model for Paper Bag Machine. ca 1879. Knight, Margaret E.. National Museum of American History, Pravel, Gambrell, Hewitt, Kirk, Kimball, and Dodge. CC0.
