margaret knight

Margaret Knight (February 14, 1838 - October 12, 1914) was an American inventor. A cotton mill worker from the age of nine through her teens, Knight invented a machine that folded and glued paper to form the brown paper bags familar to shoppers today. Knight built a wooden model of the device, but needed a working iron model to apply for a patent. A man working in the machine shop where Knight's iron model was being built stole her design and patented the device. Knight filed a successful patent interference lawsuit and was awarded the patent in 1870. With a Massacusetts business man, Knight established the Eastern Paper Bag Co. and received royalties. Knight received patents for several industrial machines, including a rotary motor. Knight's original box-making machine is in the Smithsonian Museum in Washington, D.C. Knight, Margaret Knight, Margaret Knight, Margaret

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