Object Details
patentee
Torsch, Edward L.
Lee, James R.
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
ID Number
GA.89797.223192
patent number
223192
accession number
089797
catalog number
GA*89797.223192
Object Name
manufacture, printers quoins
Frame, Picture
Object Type
Patent Model
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
See more items in
Work and Industry: Graphic Arts
Patent Models, Graphic Arts
Work
Communications
Industry & Manufacturing
Patent Models
Data Source
National Museum of American History
Link to Original Record
Record ID
nmah_998954