Registering Accountant
date: label: date made
content: 1890
name: label: maker
content: American Arithmometer Company
notes: label: Description
content: This is a very early example of the printing full-keyboard adding machine invented by William Seward Burroughs. It was manufactured in St. Louis by the American Arithmometer Company. This firm later moved to Detroit and changed its name to the Burroughs Adding Machine Company.
label: Description
content: The machine has a ferrous metal case, painted black, with maple sides and front. A burled maple veneer covers part of the sides and front. The portion of the case under the keyboard is covered with green cloth. The nine columns of black plastic keys have nine keys apiece. Extended springs serve as decimal markers between columns. Another key stem is at the middle of the base of the keyboard and a lever is to the left. The mechanism is largely ferrous metal, with some brass parts. It includes a dashpot, which is inside the machine. Numbers added are registered on wheels at the front which are not visible. The metal operating crank is on the right. The printing mechanism at the back of the machine has nine star-shaped type wheels that are linked to the register at the front. Numbers print from a black cloth ribbon inside the case onto a paper tape at the back. The output is not visible to the operator. Once the handle and cover are removed, reassembly requires that the handle be disassembled.
label: Description
content: The machine is marked on a metal tag screwed to the front: REGISTERING ACCOUNTANT (/) AMERICAN ARITHMOMETER (/) ST. LOUIS, U.S.A. It is also marked there: No. 54. It is also marked there: PATENTED (/) AUG.21.1888 (/) Jan.15.1889. The machine was lent to the Smithsonian by the Burroughs Adding Machine Company in 1916, and more recently donated by Unisys Corporation.
label: Description
content: Reference:
label: Description
content: P. A. Kidwell, "The Adding Machine Fraternity at St. Louis: Creating a Center of Invention, 1880-1920," <I>Annals of the History of Computing</I>, 2000, 22: pp. 4-21.
label: Location
content: Currently not on view
place: label: place made
content: United States: Missouri, St. Louis
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adding Machines
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Unisys Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.292398
label: maker number
content: 54
label: catalog number
content: 292398
label: accession number
content: 2011.0143
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: paper (overall material)
label: Physical Description
content: cloth (overall material)
label: Physical Description
content: wood (overall material)
label: Measurements
content: overall: 30 cm x 32 cm x 49 cm; 11 13/16 in x 12 19/32 in x 19 9/32 in