Object Details
- Description (Brief)
- This patent model demonstrates an invention for a metallograph, and was granted patent number 215792. With this tool, a writer could turn a sheet of metal into a printing plate as he wrote on it. The air-powered writing instrument made a series of sharp blows to the metal, knocking out projections on the back of the sheet. The projections formed a facsimile of the writing in reverse and in relief for printing at a type press.
- Location
- Currently not on view
- Data Source
- National Museum of American History
- patentee
- Setchell, George C.
- maker
- Carey, Augustus C.
- Carey, George R.
- Date made
- ca 1879
- patent date
- 1879-05-27
- Physical Description
- metal (overall material)
- Measurements
- overall: 19.3 cm x 7 cm x 14 cm; 7 5/8 in x 2 3/4 in x 5 1/2 in
- Object Name
- machine, metal embossing
- specimen, printing, embossing
- stencil machine, metal embossing
- Object Type
- Patent Model
- Other Terms
- methods of embossing metal for printing surfaces; machine, metal embossing; metal embossing; machine, type casting; methods of embossing metal; engraving and embossing equipment
