Patent model for printers' quoins

Description (Brief)
This patent model demonstrates an invention for quoins that were adjusted by means of concentric projecting spirals on one half, working on concentric grooves in the other. The invention was granted patent number 223192.
Location
Currently not on view
date made
ca 1879
patent date
1879-12-30
patentee
Torsch, Edward L.
Lee, James R.
Physical Description
metal (overall material)
Measurements
overall: 2.3 cm x 6.4 cm x 1.9 cm; 7/8 in x 2 1/2 in x 3/4 in
ID Number
GA.89797.223192
patent number
223192
accession number
089797
catalog number
GA*89797.223192
See more items in
Culture and the Arts: Graphic Arts
Work
Industry & Manufacturing
Communications
Patent Models
Patent Models, Graphic Arts
Data Source
National Museum of American History, Kenneth E. Behring Center

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