Object Details
maker
Dorrity, Daniel
Description (Brief)
This patent model demonstrates an invention for mechanical quoins, which expanded by means of paired screw gears; the invention was granted patent number 93603.
Location
Currently not on view
date made
ca 1869
patent date
1869-08-10
ID Number
GA.89797.093603
accession number
089797
patent number
093603
catalog number
GA*87979.093603
Object Name
manufacture, printers quoins
Quoin
Object Type
Patent Model
Physical Description
metal (overall material)
Measurements
overall: 10 cm x 16.7 cm x 10.5 cm; 3 15/16 in x 6 9/16 in x 4 1/8 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_998916