National Museum of American History
Patent Model for a Machine for Smoothing the Sides of Type
Bruce, Jr., David · ca 1838
This patent model demonstrates an invention for a machine to smooth the sides of type; the invention was granted patent number 631. In the inventor's opinion, this foot-driven machine allowed the operator to rub around sixty thousand types in a day, in conditions of less "unhealthiness" than the usual. The model is missing its treadle.
🔒
Order museum-quality prints
Sign in to order prints, canvas, and more of this work. Browsing and full-resolution downloads stay free.