National Museum of American History
Patent Model of a Pneumatic Sheet-Feed Apparatus
Knight, Margaret · ca 1870
This patent model demonstrates an invention for a sheet-feed apparatus which was granted patent number 109224. The patent details a sheet feeder using two suction tubes to lift and carry each sheet from the paper bank to the cylinder.
🔒
Order museum-quality prints
Sign in to order prints, canvas, and more of this work. Browsing and full-resolution downloads stay free.