Samuel W. Francis Typewriter Patent Model
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
Samuel Ward Francis of New York, New York received patent number 18,504 on October 27, 1857 for this printing-machine patent model. The model has a light wooden frame with four piano keys, and a metal platen carriage system. Samuel Francis made several attempts at an early typewriter prototypes, and held several patents (see object ME*180060) for early printing machines. This patent was related to the circular arrangement of the type hammers that allowed them to strike in the same place. Additionally, the patent covered the paper carrier moving by spring and catch so that paper would move whenever a letter on the key has been struck allowing for a continuous printing line.
National Museum of American History’s own description