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William W. Wythes Cyclo-Ellipto-Pantograph Patent Model
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This is the patent model for a drawing devices granted U.S. Patent 21,041 to William W. Wythes on July 27, 1858. “Be it known that I, WILLIAM WYTHES, of the city of Philadelphia and State of Pennsylvania, have invented a new and Improved Instrument for Drawing and Copying.” (U.S. Patent Application). The Smithsonian also owns a patent model by Wythes for a cloth-measuring machine (U.S. Patent 18313). (The original patent drawings and descriptions can be viewed at Google Patents.) Special about this patent model is that the inventor has engraved “Wm W Wythes, inventor” on the large brass disc on the model.
National Museum of American History’s own descriptionCredit lineWilliam W. Wythes Cyclo-Ellipto-Pantograph Patent Model. 1858. Wythes, William W.. National Museum of American History. CC0.
