Burroughs Adding Machine Section

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This open cross section of a Burroughs adding machine has a metal frame painted black on one side, a single column of nine plastic-covered keys (one of these is missing), a mechanism for the keys, a short rubber carriage, and type. Two number wheels are at the front. Places where the mechanism and frame have been cut off are painted orange. The model is supposed to show transmission of action from the finger keys to the registering devices. The model rests on a metal shaft that is attached to a square wooden base.
This section was lent to the Smithsonian in 1924 by Burroughs Adding Machine Company of Detroit as an example of the technology of a current product. It recently has been donated to the Institution by Unisys Corporation.
Currently not on view
date made
Burroughs Adding Machine Company
place made
United States: Michigan, Detroit
Physical Description
metal (overall material)
plastic (overall material)
rubber (overall material)
wood (overall material)
overall: 46.5 cm x 19 cm x 38.5 cm; 18 5/16 in x 7 15/32 in x 15 5/32 in
ID Number
catalog number
accession number
Credit Line
Gift of Unisys Corporation
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
Data Source
National Museum of American History


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