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Patent Model of a Lithographic Scraper Press
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This patent model demonstrates an invention for a lithographic scraper press which was granted patent number 228271. The patent describes a method of mounting a scraper to a swinging arm to produce more even pressure in "Photo-Mechanical Presses.”
National Museum of American History’s own descriptionSubjects
Credit linePatent Model of a Lithographic Scraper Press. ca 1880. Parks, John A.. National Museum of American History. CC0.
