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Patent Model for Molds for Casting Blocks for Printing Carpets or Wall Paper

Patent Model for Molds for Casting Blocks for Printing Carpets or Wall Paper

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Description (Brief)
This patent model demonstrates an invention for a mold that made blocks that were used in printing carpets or wall paper; the invention was granted patent number 10630. The design, formed of short and long pieces of type, was set up in a square casting box. The printing block was then cast in any suitable material such as type metal, plaster-of-paris, vulcanized rubber, or, by preference, gutta percha - a popular material in the mid nineteenth century.
Location
Currently not on view
Object Name
method, manufacturing molds
Object Type
Patent Model
date made
ca 1854
patent date
1854-03-14
maker
Berry, James
Physical Description
metal (overall material)
Measurements
overall: 6 cm x 11.5 cm x 11 cm; 2 3/8 in x 4 1/2 in x 4 5/16 in
ID Number
1996.0062.02
accession number
1996.0062
catalog number
1996.0062.02
patent number
010630
See more items in
Work and Industry: Graphic Arts
Work
Industry & Manufacturing
Communications
Patent Models
Patent Models, Graphic Arts
Data Source
National Museum of American History
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Comments

Very interesting model - and even more interesting to me was learning about Gutta-Percha as the molding medium. I am familiar with all sorts of type metal used in printing, but had never heard of this material before now. Apparently, it is still in use by dentists making fillings. I am currently working with modern resins and rubbers to make molds and castings of irreplaceable pieces of metal Foundry Type, but now I may have to find some Gutta-Percha myself to replicate the molding materials that may have been used in making printing type during the mid-19th century. Thanks!

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