National Museum of American History
Patent model machine for making cold wrought type
Petyt, Jean Constant · ca 1847
This patent model demonstrates an invention for a machine which produced type by compression and cutting from rods of any metal; the invention was granted patent number 5049. The face was formed using a steel letter matrix or, for reversed type (type en creux), a steel punch. The model is a full-sized working machine. (Jean Petyt was from Paris, France.)
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