Patent Model for Type Molds

Patent Model for Type Molds

Description (Brief)
This patent model demonstrates an invention for a type mold; the invention was granted patent model 187880. The patent details type molds in which the jet of the newly cast type was broken off automatically as the mold was opened, saving a separate operation in the typecasting process. Mason was from Islington in Middlesex, England. His invention was patented in England in 1877.
Currently not on view
Object Name
manufacture, type molds
Object Type
Patent Model
date made
ca 1877
patent date
Mason, Thomas
Physical Description
metal (overall material)
overall: 3.5 cm x 4.5 cm x 11.2 cm; 1 3/8 in x 1 3/4 in x 4 7/16 in
ID Number
patent number
accession number
catalog number
See more items in
Work and Industry: Graphic Arts
Patent Models, Graphic Arts
Industry & Manufacturing
Patent Models
Data Source
National Museum of American History
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